Vendor import ncurses 6.1-20200118vendor/ncurses/6.1-20200118

943 files changed, 141682 insertions, 71467 deletions

diff --git a/ANNOUNCE b/ANNOUNCE
index 11933c5f6d55..8bda60e2f074 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -1,78 +1,942 @@
-                            Announcing ncurses 5.9
+                            Announcing ncurses 6.1
+
+Overview
 
    The  ncurses  (new  curses)  library  is  a free software emulation of
-   curses  in  System  V  Release 4.0, and more. It uses terminfo format,
-   supports  pads  and color and multiple highlights and forms characters
-   and   function-key   mapping,   and  has  all  the  other  SYSV-curses
-   enhancements over BSD curses.
+   curses  in  System  V  Release  4.0 (SVr4), and more. It uses terminfo
+   format,  supports  pads  and  color  and multiple highlights and forms
+   characters and function-key mapping, and has all the other SVr4-curses
+   enhancements  over  BSD curses. SVr4 curses became the basis of X/Open
+   Curses.
 
    In  mid-June  1995,  the  maintainer of 4.4BSD curses declared that he
-   considered  4.4BSD curses obsolete, and encouraged the keepers of Unix
+   considered  4.4BSD curses obsolete, and encouraged the keepers of unix
    releases such as BSD/OS, FreeBSD and NetBSD to switch over to ncurses.
 
-   The ncurses code was developed under GNU/Linux. It has been in use for
-   some  time  with  OpenBSD as the system curses library, and on FreeBSD
-   and  NetBSD  as  an  external  package.  It  should port easily to any
-   ANSI/POSIX-conforming UNIX. It has even been ported to OS/2 Warp!
+   Since 1995, ncurses has been ported to many systems:
+     * It is used in almost every system based on the Linux kernel (aside
+       from some embedded applications).
+     * It  is  used  as the system curses library on OpenBSD, FreeBSD and
+       OSX.
+     * It  is used in environments such as Cygwin and MinGW. The first of
+       these was EMX on OS/2 Warp.
+     * It is used (though usually not as the system curses) on all of the
+       vendor  unix  systems,  e.g.,  AIX,  HP-UX,  IRIX64, SCO, Solaris,
+       Tru64.
+     * It should work readily on any ANSI/POSIX-conforming unix.
 
    The distribution includes the library and support utilities, including
-   a   terminfo  compiler  tic(1),  a  decompiler  infocmp(1),  clear(1),
-   tput(1),  tset(1),  and  a  termcap conversion tool captoinfo(1). Full
-   manual pages are provided for the library and tools.
-
-   The  ncurses  distribution  is  available via anonymous FTP at the GNU
-   distribution site [1]ftp://ftp.gnu.org/gnu/ncurses/ .
-   It is also available at [2]ftp://invisible-island.net/ncurses/ .
-
-                                 Release Notes
-
-   This  release  is  designed  to  be upward compatible from ncurses 5.0
-   through   5.8;  very  few  applications  will  require  recompilation,
-   depending   on  the  platform.  These  are  the  highlights  from  the
-   change-log since ncurses 5.8 release.
-
-   This  is  a  bug-fix  release,  correcting  a  small  number of urgent
-   problems in the ncurses library from the 5.8 release.
-
-   It also improves the Ada95 binding:
-     * fixes  a  longstanding  portability  problem  with  its use of the
-       [3]set_field_type    function.    Because   that   function   uses
-       variable-length  argument  lists, its interface with gnat does not
-       work with certain platforms.
-     * improves  configurability and portability, particularly when built
-       separately  from the main ncurses tree. The 5.8 release introduced
-       scripts  which  can be used to construct separate tarballs for the
-       Ada95 and ncurses examples.
-       Those  were a proof of concept. For the 5.9 release, those scripts
-       are  augmented  with  rpm-  and  dpkg-scripts  used in test builds
-       against  a  variety of gnat- and system ncurses versions as old as
-       gnat  3.15  and  ncurses  5.4  (see  snapshots  and systems tested
-       [4]here.
-     * additional  improvements  were made for portability of the ncurses
-       examples,  adding  rpm-  and  dpkg-scripts  for  test-builds.  See
-       [5]this page for snapshots and other information.
-
-                              Features of Ncurses
-
-   The ncurses package is fully compatible with SVr4 (System V Release 4)
-   curses:
-     * All  257  of  the  SVr4  calls  have  been  implemented  (and  are
-       documented).
-     * Full  support for SVr4 curses features including keyboard mapping,
-       color,   forms-drawing   with   ACS   characters,   and  automatic
-       recognition of keypad and function keys.
-     * An  emulation  of  the  SVr4 panels library, supporting a stack of
-       windows with backing store, is included.
-     * An  emulation  of the SVr4 menus library, supporting a uniform but
-       flexible interface for menu programming, is included.
-     * An  emulation of the SVr4 form library, supporting data collection
-       through on-screen forms, is included.
-     * Binary   terminfo   entries   generated   by  the  ncurses  tic(1)
-       implementation  are  bit-for-bit-compatible  with the entry format
-       SVr4 curses uses.
-     * The utilities have options to allow you to filter terminfo entries
-       for  use  with  less  capable curses/terminfo versions such as the
-       HP/UX and AIX ports.
+     * [1]captoinfo, a termcap conversion tool
+     * [2]clear, utility for clearing the screen
+     * [3]infocmp, the terminfo decompiler
+     * [4]tabs, set tabs on a terminal
+     * [5]tic, the terminfo compiler
+     * [6]toe, list (table of) terminfo entries
+     * [7]tput,  utility  for  retrieving  terminal capabilities in shell
+       scripts
+     * [8]tset, to initialize the terminal
+
+   Full manual pages are provided for the library and tools.
+
+   The ncurses distribution is available at ncurses' [9]homepage:
+
+     [10]ftp://ftp.invisible-island.net/ncurses/ or
+     [11]https://invisible-mirror.net/archives/ncurses/ .
+
+   It is also available via anonymous FTP at the GNU distribution site
+
+     [12]ftp://ftp.gnu.org/gnu/ncurses/ .
+
+Release Notes
+
+   These notes are for ncurses 6.1, released January 27, 2018.
+
+   This  release  is  designed  to  be source-compatible with ncurses 5.0
+   through  6.0; providing extensions to the application binary interface
+   (ABI).  Although  the  source  can  still be configured to support the
+   ncurses  5  ABI, the intent of the release is to provide extensions to
+   the ncurses 6 ABI:
+     * improve integration of tput and tset
+     * provide support for extended numeric capabilities.
+
+   There  are,  of  course,  numerous  other improvements, listed in this
+   announcement.
+
+   The  release notes also mention some bug-fixes, but are focused on new
+   features  and  improvements  to  existing  features  since ncurses 6.0
+   release.
+
+  Library improvements
+
+    New features
+
+   The  improved  integration of tput and tset made only small changes to
+   the  libraries.  However,  supporting  extended  numeric  capabilities
+   required a few changes:
+     * The  TERMINAL  structure  in  <term.h>  is  now opaque. Doing that
+       allowed  making the structure larger, to hold the extended numeric
+       data.
+       A   few   applications  required  changes  during  development  of
+       ncurses 6.1 because those applications misused the members of that
+       structure,   e.g.,   directly   modifying  it  rather  than  using
+       [13]def_prog_mode.
+     * Having  made  TERMINAL  opaque  (and  because  none of the library
+       functions  use  anything  except  a  pointer  to TERMINAL), it was
+       possible to increase the size of the structure, adding to the end.
+       Existing   applications  which  were  linked  to  the  ncurses 6.0
+       high-level   (ncurses,  ncursesw)  and  low-level  (tinfo,  tinfo)
+       libraries should not require re-linking since the binary interface
+       did  not  change,  nor  did  the  structure  offsets with TERMINAL
+       change.
+       A  few  applications use the inner TERMTYPE structure's offsets to
+       refer to terminfo capabilities within that structure. Again, those
+       do  not require modification because their offsets within TERMINAL
+       did not change.
+     * When configured for wide-characters, i.e., "ncursesw" the TERMINAL
+       structure is extended.
+       The  new  data in TERMINAL holds the same information as TERMTYPE,
+       but  with  larger  numbers  ("int"  versus  "short").  It is named
+       TERMTYPE2.
+       The  library  uses  this  structure  internally  in  preference to
+       TERMTYPE,   referring  to  TERMTYPE  only  to  initialize  it  for
+       applications that use the capabilities defined in <term.h>
+     * When  configured  for  8-bit  (narrow)  characters,  the TERMTYPE2
+       structure is not used.
+     * The updated application binary interface is 6.1.20171230 (used for
+       new  [14]versioned  symbols),  although the interface changes were
+       developed several months previously.
+
+   The  motivation  for  making  this  extension  came from noticing that
+   [15]termcap  applications  could  (though  not  [16]realistically) use
+   larger numbers than would fit in 16-bits, and the fact that the number
+   of  color  pairs  for  a  256-color  xterm  could  not be expressed in
+   terminfo  (i.e.,  32767  versus  65536). Also, a few terminals support
+   direct-colors, which could use the extension.
+
+   Generally  speaking,  applications  that  use  internal  details  of a
+   library  are unsupported. There was exactly one exception for ncurses:
+   the  tack  program  used  the internal details of TERMINAL, because it
+   provides  an  ncurses-specific  feature  for interactively modifying a
+   terminfo   description  and  writing  the  updated  description  to  a
+   text-file.  It  was  possible  to  not  only  separate tack from these
+   [17]internal  details  of  ncurses,  but  to generalize it so that the
+   program   works   with  Unix  curses  (omitting  the  ncurses-specific
+   feature). That was released as [18]tack 1.08 in July 2017.
+
+   While  making changes to tack to eliminate its dependency upon ncurses
+   internals,  the  publicly-visible  details  of  those  internals  were
+   reviewed,  and  some symbols were moved to private header files, while
+   others were marked explicitly as ncurses internals. Future releases of
+   ncurses  may  eliminate  some  of those symbols (such as those used by
+   tack 1.07) because they are neither part of the API or the ABI.
+
+   Using  the  TERMTYPE2 extended numeric capabilities, it is possible to
+   support  both  color  pair  values and color values past 32767. Taking
+   compatibility into account, developers readily understand that neither
+   function  signatures  nor  structure  offsets  change.  Also, existing
+   functions have to operate with the extended numbers. Most of that work
+   is  internal  to  the  library.  For the external interfaces, a hybrid
+   approach was used:
+     * X/Open  Curses  defined function prototypes such as wattr_set with
+       an  unused parameter, for "future" use. After 25 years, the future
+       is  here:  ncurses uses the parameter to augment color pair values
+       as described in the [19]manual page.
+     * Other  functions such as those defining color pairs did not have a
+       corresponding  reserved  parameter.  For  those,  ncurses  defines
+       extended  versions  such as init_extended_pair (versus init_pair),
+       init_extended_color (versus init_color).
+
+   Additionally,  to  improve  performance other changes (and extensions)
+   are provided in this release:
+     * Several  new  functions simplify management of large sets of color
+       pairs: reset_color_pairs, alloc_pair, find_pair and free_pair.
+     * New "RGB" extension capability for direct-color support is used to
+       improve performance of color_content.
+     * The  internal colorpair_t is now a struct, eliminating an internal
+       8-bit limit on colors
+     * Allocation  for  SCREEN's  color-pair table starts small, grows on
+       demand up to the limit given in the terminal description.
+     * setcchar and getcchar now treat a negative color-pair as an error.
+
+    Other improvements
+
+   These are new or revised features:
+     * modify  c++/etip.h.in  to  accommodate  deprecation  of  throw and
+       throws in c++17
+     * add new function unfocus_current_field
+     * add option to preserve leading whitespace in form fields
+     * add  a  macro  for is_linetouched and adjust the function's return
+       value  to  make  it possible for most applications to check for an
+       error-return.
+     * add  build-time  utility  report_offsets  to  help  show  when the
+       various configurations of tinfo library are compatible or not.
+
+   These were done to limit or ultimately deprecate features:
+     * drop  two  symbols  obsoleted  in  2004:  _nc_check_termtype,  and
+       _nc_resolve_uses
+     * move  _nc_tracebits,  _tracedump and _tracemouse to curses.priv.h,
+       since they are not part of the suggested ABI6.
+     * mark  some  structs  in  form/menu/panel  libraries as potentially
+       opaque without modifying API/ABI.
+     * ifdef'd     header-file    definition    of    mouse_trafo    with
+       NCURSES_NOMACROS
+     * remove  initialization-check  for calling napms in the term-driver
+       configuration; none is needed.
+     * modify trace to avoid overwriting existing file
+
+   These are improvements to existing features:
+     * modify   make_hash   to  allow  building  with  address-sanitizer,
+       assuming that --disable-leaks is configured.
+     * move  SCREEN field for use_tioctl data before the ncursesw fields,
+       and  limit  that  to the sp-funcs configuration to improve termlib
+       compatibility
+     * modify db-iterator:
+          + ignore zero-length files in db-iterator; these are useful for
+            instance to suppress $HOME/.terminfo when not wanted.
+          + modify  update_getenv  to  ensure  that environment variables
+            which  are  not  initially  set  will  be checked later if an
+            application happens to set them
+     * modify  _nc_outc_wrapper  to use the standard output if the screen
+       was not initialized, rather than returning an error.
+     * improve  checks for low-level terminfo functions when the terminal
+       has not been initialized.
+     * modify set_curterm to update ttytype[] data used by longname/p>
+     * modify  _nc_get_screensize  to  allow  for  use_env and use_tioctl
+       state  to  be  per-screen  when  sp-funcs  are  configured, better
+       matching the behavior when using the term-driver configuration.
+     * remove an early-return from _nc_do_color, which can interfere with
+       data  needed  by  bkgd  when  ncurses  is configured with extended
+       colors
+     * incorporate A_COLOR mask into COLOR_PAIR, in case user application
+       provides an out-of-range pair number
+     * modify  logic for endwin-state to be able to detect the case where
+       the screen was never initialized, using that to trigger a flush of
+       ncurses'  buffer for mvcur, e.g., in the sample program dots_mvcur
+       for the term-driver configuration.
+
+   These are corrections to existing features:
+     * fixes for writing extended color pairs in putwin.
+     * modify no-leaks code for lib_cur_term.c to account for the tgetent
+       cache.
+     * amend handling of the repeat_char capability in EmitRange to avoid
+       scope  creep:  translate  the character to the alternate character
+       set  when  the  alternate character set is enabled, and do not use
+       repeat_char for characters past 255.
+     * improve    wide-character    implementation    of   myADDNSTR   in
+       frm_driver.c,    which    was   inconsistent   with   the   normal
+       implementation.
+     * modify winnstr and winchnstr to return error if the output pointer
+       is  null,  as  well  as  adding a null pointer check of the window
+       pointer for better compatibility with other implementations.
+     * modify  setupterm  to  save  original  tty-modes so that erasechar
+       works  as expected. Also modify _nc_setupscreen to avoid redundant
+       calls to get original tty-modes.
+     * modify  wattr_set  and wattr_get to return ERR if win-parameter is
+       null, as documented.
+     * correct   order  of  initialization  for  traces  in  use_env  and
+       use_tioctl versus first _tracef calls.
+     * correct parameters for copywin call in _nc_Synchronize_Attributes
+     * flush  the  standard  output in _nc_flush for the case where SP is
+       zero,  e.g.,  when  called  via  putp. This fixes a scenario where
+       "tput flash" did not work after changes in 20130112.
+     * amend  internal  use  of  tputs  to consistently use the number of
+       lines  affected,  e.g.,  for  insert/delete  character operations.
+       While  merging terminfo source early in 1995, several descriptions
+       used  the "*" proportional delay for these operations, prompting a
+       change in doupdate.
+     * correct return-value of extended putwin.
+     * double-width  multibyte  characters  were  not counted properly in
+       winsnstr and wins_nwstr.
+     * amend  fix  for  _nc_ripoffline from 20091031 to make test/ditto.c
+       work in threaded configuration.
+     * modify _nc_viscbuf2 and _tracecchar_t2 to trace wide-characters as
+       a whole rather than their multibyte equivalents.
+     * minor  fix  in  wadd_wchnstr  to ensure that each cell has nonzero
+       width.
+     * move PUTC_INIT calls next to wcrtomb calls, to avoid carry-over of
+       error status when processing Unicode values which are not mapped.
+     * add missing assignment in lib_getch.c to make notimeout work
+
+  Program improvements
+
+   While reviewing user feedback, it became apparent that the differences
+   between [20]reset (an alias for tset) and "tput reset" were confusing:
+     * one  ([21]tset)  updated the terminal modes, but used only part of
+       the terminfo capabilities for initialization, while
+     * the  other  ([22]tput) used all of the terminal capabilities while
+       neglecting the terminal modes.
+
+   On  further  investigation,  it  turned  out that the differences were
+   largely an accident due to the way those programs had evolved.
+
+   This  release  eliminates  the unnecessary differences, using the same
+   approach  for tput's init (initialization), reset and clear operations
+   as  the separate [23]reset and [24]clear programs. Doing this does not
+   change the command-line options; existing scripts are unaffected.
+
+   These  are the user-visible changes for the three programs (tput, tset
+   and clear):
+     * add  the  terminal-mode  parts  of "reset" (aka tset) to the "tput
+       reset"  command,  making  the  two  almost  the  same  except  for
+       window-size.
+     * improve  tput's  check  for  being  called as "init" or "reset" to
+       allow for transformed names.
+     * add "clear" as a possible link/alias to tput.
+     * amend changes for tput to reset tty modes to "sane" if the program
+       is  run  as  "reset",  like tset. Likewise, ensure that tset sends
+       either reset- or init-strings.
+     * add -x option to clear/tput to make the E3 extension optional
+     * add functionality of "tset -w" to tput, like the "-c" feature this
+       is not optional in tput.
+     * add  options  -T  and  -V  to clear command for compatibility with
+       tput.
+     * drop long-obsolete "-n" option from tset.
+     * modify tset's assignment to TERM in its output to reflect the name
+       by  which  the  terminal  description  is  found,  rather than the
+       primary  name.  That  was  an  unnecessary  part  from the initial
+       conversion  of  tset from termcap to terminfo. The termcap library
+       in 4.3BSD did this to avoid using the short 2-character name
+     * remove  a  restriction  in  tput's support for termcap names which
+       omitted capabilities normally not shown in termcap translations
+     * add usage message to clear command
+     * improve usage messages for tset and tput.
+
+   Other user-visible improvements and new features include:
+     * modify  tic/infocmp  display  of numeric values to use hexadecimal
+       when  they  are  "close" to a power of two, making the result more
+       readable.
+     * add "-W" option to tic/infocmp to force long strings to wrap.
+          + This  is in addition to the "-w" option which attempts to fit
+            capabilities into a given line-length.
+          + If  "-f"  option  splits  line,  do not further split it with
+            "-W".
+          + Begin a new line when adding "use=" after a wrapped line.
+     * add  "-q"  option  to infocmp to suppress the "Reconstructed from"
+       comment  from  the  header,  and  a corresponding option to tic to
+       suppress all comments from the "tic -I" output.
+     * Sorted options in usage message for infocmp, to make it simpler to
+       see unused letters.
+     * Updated usage message for tic, adding "-0" option.
+     * add infocmp/tic "-Q" option, which allows one to dump the compiled
+       form of the terminal entry, in hexadecimal or base64:
+          + A  "b64:"  prefix in the TERMINFO variable tells the terminfo
+            reader  to  use  base64  according  to  RFC-3548  as  well as
+            RFC-4648 url/filename-safe format.
+          + A   "hex:"   prefix  tells  the  terminfo  reader  to  accept
+            hexadecimal data as generated by "infocmp -0qQ1".
+
+   Other less-visible improvements and new features include:
+     * modify  utility headers such as tic.h to make it clearer which are
+       externals that are used by tack.
+     * add  "reset"  to  list  of  programs  whose  names might change in
+       manpages due to program-transformation configure options.
+     * modify  "-T" option of clear and tput to call use_tioctl to obtain
+       the operating system's notion of the screensize if possible.
+     * add  check  in  tput for init/reset operands to ensure those use a
+       terminal.
+     * modify  programs clear, tabs, tput and tset to pass the actual tty
+       file  descriptor  to  setupterm rather than the standard output or
+       error, making padding work.
+     * change  tset's initialization to allow it to get settings from the
+       standard  input  as  well  as  /dev/tty, to be more effective when
+       output or error are redirected.
+     * amend  check  in  tput,  tabs  and clear to allow those to use the
+       database-only  features  in cron if a "-T" option gives a suitable
+       terminal name.
+     * improve  error message from tset/reset when both stderr/stdout are
+       redirected to a file or pipe.
+
+   Several  of  the  less  apparent  features  deal  with  translation of
+   terminfo  to  termcap  (and the reverse), with corresponding checks by
+   tic:
+     * modify check in fmt_entry to handle a cancelled reset string. Make
+       similar fixes in other parts of dump_entry.c and tput.c
+     * correct  read of terminfo entry in which all strings are absent or
+       explicitly  cancelled.  Before  this  fix, the result was that all
+       were treated as only absent.
+     * modify   infocmp   to   suppress   mixture   of   absent/cancelled
+       capabilities that would only show as "NULL, NULL", unless the "-q"
+       option is used, e.g., to show "-, @" or "@, -".
+     * correct  a warning from tic about keys which are the same, to skip
+       over missing/cancelled values.
+     * add  check  in  tic for use of bold, etc., video attributes in the
+       color  capabilities,  accounting  whether the feature is listed in
+       ncv.
+     * add  check  in  tic for unnecessary use of "2" to denote a shifted
+       special key.
+     * improve  check  in tic for delays by also warning about beep/flash
+       when  a  delay  is not embedded, or if those use the VT100 reverse
+       video escape without using a delay.
+     * improve  checks  in trim_sgr0, comp_parse.c and parse_entry.c, for
+       cancelled string capabilities.
+     * add  check in tic for some syntax errors of delays, as well as use
+       of proportional delays for non-line capabilities.
+     * add  check  in  tic  for  conflict between ritm, rmso, rmul versus
+       sgr0.
+     * add  check  in _nc_parse_entry for invalid entry name, setting the
+       name to "invalid" to avoid problems storing entries.
+     * improve _nc_tparm_analyze, using that to extend the checks made by
+       tic  for  reporting inconsistencies between the expected number of
+       parameters for a capability and the actual.
+     * remove  tic  warning  about "^?" in string capabilities, which was
+       marked  as  an extension; however all Unix implementations support
+       this  and  X/Open  Curses  does not address it. On the other hand,
+       [25]BSD   termcap   did   not  support  this  feature  (until  the
+       [26]mid-1990s).
+       in  _nc_infotocap,  added  a check to ensure that terminfo "^?" is
+       not written to termcap.
+     * modify  sscanf calls in _nc_infotocap for patterns "%{number}%+%c"
+       and "%'char'%+%c" to check that the final character is really "c",
+       avoiding a case in icl6404 which cannot be converted to termcap.
+     * in  _nc_tic_expand and _nc_infotocap, improved string-length check
+       when  deciding  whether  to  use "^X" or "\xxx" format for control
+       characters, to make the output of tic/infocmp more predictable.
+     * limited  termcap  "%d" width to 2 digits on input, and use "%2" in
+       preference to "%02" on output.
+     * correct  terminfo/termcap  conversion of "%02" and "%03" into "%2"
+       and "%3"; the result repeated the last character.
+
+    Examples
+
+   Along  with  the library and utilities, many improvements were made to
+   the [27]ncurses-examples.
+
+   These changes were made to demonstrate new extensions in ncurses:
+     * add   demo_new_pair   program,   to   demonstrate  [28]alloc_pair,
+       [29]find_pair and [30]free_pair functions.
+       This  program  iterates  over  the  possible  color  combinations,
+       allocating  or  initializing color pairs. For best results, choose
+       screen-width dividing evenly into the number of colors. e.g.,
+
+     32x64,32x128   256 colors
+     24x44,24x88    88 colors
+     32x64,24x128   16 colors
+
+     * add  extended_color program, like the older color_set program, but
+       using   the   extended  color  functions,  with  and  without  the
+       SP-functions interface.
+     * add  picsmap  program  to  fill  in some testing issues not met by
+       dots,  using  this  as  the  third  example in a comparison of the
+       [31]ncurses versus slang libraries.
+       The   program  can  directly  read  X  bitmap  and  pixmap  files,
+       displaying  a  picture.  It  can  read  other  image  files  using
+       ImageMagick's convert program to translate the image into text.
+       For 16-, 88- and 256-color terminal descriptions, picsmap can load
+       a  palette file which tells it which color palette entries to use.
+       For direct-colors, the terminal descriptions use the RGB extension
+       capability.
+
+   There are other new example programs and a few scripts:
+     * add  dots_xcurses  program to illustrate a different approach used
+       for extended colors which can be contrasted with dots_curses.
+     * add  list_keys program show function keys for one or more terminal
+       descriptions.  It  uses  ncurses's  convention  of  modifiers  for
+       special keys, based on xterm.
+     * add  padview  program,  to compare pads with direct updates in the
+       view program.
+     * add sp_tinfo program to exercise the SP-functions extension of the
+       low-level terminfo library.
+     * add test-programs for termattrs and term_attrs functions.
+     * add  test_sgr  program  to  exercise  all  combinations of the sgr
+       capability.
+     * add   tput-colorcube   demo  script,  imitating  xterm's  88-  and
+       256-color scripts using tput.
+     * add  tput-initc  script  to  demonstrate  how  tput may be used to
+       initialize a color palette from a data file.
+
+   A  variety  of  improvements  were made to existing programs, both new
+   features  as  well  as  options added to make the set of programs more
+   consistent.
+
+   The  ncurses program is the largest; a proportionately large number of
+   changes were made to it:
+     * modify  a/A  screens to make exiting on an escape character depend
+       on  the start of keypad and timeout modes, to allow better testing
+       of function-keys.
+       add "t" toggle for notimeout function.
+     * modify layout of b/B screens to allow for additional annotation on
+       the  right  margin;  some  terminals  with partial support did not
+       display well.
+     * modify c/C screens to allow for extended color pairs.
+       add z/Z zoom feature to make extended color pairs easier to test.
+       modify  test-screens  to  take advantage of wide screens, reducing
+       the number of lines used for 88- and 256-colors.
+     * modify  "d"  edit-color  screen  to  optionally  read  xterm color
+       palette directly from terminal, as well as handling KEY_RESIZE and
+       screen-repainting with control/L and control/R.
+     * add examples to "F" screen for WACS_D_PLUS and WACS_T_PLUS.
+     * improve  "g"  screen,  correcting  ifdef which made the legend not
+       reflect  changes  to  keypad-  and  scroll-modes.  Added check for
+       return-value of putwin.
+     * make "s" test easier to understand which subtests are available
+       add a corresponding "S" wide-character overlap test-screen.
+     * add "v" screen to show baudrate and other values.
+
+   These changes were made to the other examples:
+     * modify  blue  program  to  use Unicode values for card-glyphs when
+       available, as well as improving the check for CP437 and CP850.
+     * improve   demo_menus   program,   allowing   mouse-click   on  the
+       menu-headers  to  switch  the  active  menu.  This  requires a new
+       extension option O_MOUSE_MENU to tell the menu driver to put mouse
+       events  which  do not apply to the active menu back into the queue
+       so that the application can handle the event.
+     * correct logic in demo_terminfo program for "-f" option
+     * modify  ditto program to allow $XTERM_PROG environment variable to
+       override "xterm" as the name of the program to run in the threaded
+       configuration.
+     * add several options to the "dots" test-programs.
+     * modify filter program:
+          + illustrate  an  alternative  to getnstr, that polls for input
+            while  updating  a  clock  on  the  right  margin  as well as
+            responding to window size-changes.
+          + adapt  logic  used in [32]dialog [33]"--keep-tite" option for
+            filter  program as the "-a" option. When set, filter attempts
+            to suppress the alternate screen.
+     * modify  knight  program  to  provide the "slow" solution for small
+       screens  using  "R", noting that Warnsdorf's method is easily done
+       with "a".
+     * modify  the  savescreen program to add test patterns that exercise
+       88-, 256-, etc., colors.
+     * add  options  to  test_arrays,  for selecting termcap vs terminfo,
+       etc.
+     * modify the view program:
+          + expand  tabs  using  the  ncurses  library rather than in the
+            test-program.
+          + eliminate the "-n" option by simply reading the whole file.
+          + implement page up/down commands.
+          + remove the very old SIGWINCH example; just use KEY_RESIZE.
+     * improve  animation  in  xmas  program  by  adding  a time-delay in
+       blinkit.
+     * modify  several  test-programs  which  call  use_default_colors to
+       consistently do this only if the "-d" option is given.
+     * modify the install-rule for ncurses-examples to put the data files
+       in the data directory, e.g., /usr/share/ncurses-examples.
+     * modify  several  test  programs  to  use  new popup_msgs function,
+       adapted from the help-screen used in the edit_field program.
+     * modify   test   data   for   xterm   palettes  to  use  the  newer
+       color4/color12 values.
+     * improve the tracemunch script:
+          + show screenXX pointers and thread identifiers as names.
+          + chang   address-parameters   of  add_wch,  color_content  and
+            pair_content to dummy parameters.
+
+  Terminal database
+
+   There are several new terminal descriptions:
+
+     dumb-emacs-ansi,  dvtm,  dvtm-256color,  fbterm,  iterm2,  linux-m1
+     minitel    entries,    putty-noapp,    viewdata,   and   vt100+4bsd
+     building-block.
+
+     xterm+noalt,   xterm+titlestack,   xterm+alt1049,   xterm+alt+title
+     building  blocks  and  xterm+direct,  xterm+indirect, xterm-direct.
+     from [34]xterm patch #331.
+
+     several  other "-direct" descriptions to address the differences of
+     other terminal emulators versus xterm-direct.
+
+   There  are  many  changes to existing terminal descriptions. Some were
+   updates to several descriptions:
+     * use  xterm+sm+1006  in  several  terminal  descriptions which were
+       validated  as  supporting  the  extended  mouse  feature for their
+       respective terminal emulators.
+     * corrected  sgr/sgr0 strings in a few cases reported by tic, making
+       those  correspond  to  the non-sgr settings where they differ, but
+       otherwise use ECMA-48 consistently.
+     * add  0.1sec  mandatory delay to flash capabilities using the VT100
+       reverse-video control
+
+   while  others  affected specific descriptions. These were retested, to
+   take into account new/undocumented changes by their developers:
+
+     iterm, minitel, st, viewdata, nsterm
+
+   while these are specific fixes based on user reports, or warnings from
+   tic:
+
+   [35]ansi building blocks
+
+          + restored  rmir/smir  in  ansi+idc  to  better  match original
+            ansiterm+idc, add alias ansiterm
+
+   [36]icl6402
+
+          + corrected missing comma-separator between string capabilities
+            in icl6402 and m2-nam
+
+   [37]interix
+
+          + updated using tack and SFU with Windows 7 Ultimate.
+          + used ^? for kdch1
+
+   [38]linux
+
+          + made linux3.0 entry the default linux entry
+          + modify  linux2.6  entry  to  improve line-drawing so that the
+            linux3.0 entry can be used in non-UTF-8 mode
+          + omitted  selection  of  ISO-8859-1 for G0 in enacs capability
+            from  linux2.6 entry, to avoid conflict with the user-defined
+            mapping. The reset feature uses ISO-8859-1 in any case.
+          + modify flash capability for linux and wyse entries to put the
+            delay between the reverse/normal escapes rather than after
+          + modify  linux-16color  to  not  mask dim, standout or reverse
+            with the ncv capability
+
+   [39]pccon entries
+
+          + fixed some inconsistencies in the pccon* entries
+          + add bold to pccon+sgr+acs and pccon-base
+          + add keys f12-f124 to pccon+keys
+
+   [40]tmux
+
+          + corrected  sgr  string,  which  used screen's "standout" code
+            rather than the standard code.
+          + add  settings  corresponding  to xterm-keys option to reflect
+            upcoming change to make that option "on" by default
+          + uncanceled Ms
+
+   [41]vt100
+
+          + modify  vt100  rs2  string  to  reset vt52 mode and scrolling
+            regions
+          + corrected rs2 string for vt100-nam
+          + made  minor  fixes  for  vt100+4bsd,  e.g.,  delay in sgr for
+            consistency
+
+   [42]vte
+
+          + moved SGR 24 and 27 from vte-2014 to vte-2012
+          + add a few capabilities fixed in recent VTE development
+
+   [43]xterm
+
+          + add rep to xterm-new, available since [44]late 1996.
+          + modify  xterm+256color  and  xterm+256setaf  to  use  correct
+            number of color pairs.
+          + modify    rs1    for    xterm-16color,    xterm-88color   and
+            xterm-256color  to  reset palette using oc string as in linux
+            entry.
+          + add rs1 capability to xterm-256color
+          + add  oc  capability to xterm+256color, allowing palette reset
+            for xterm
+          + add op to xterm+256setaf
+          + modify xterm-r5, xterm-r6 and xterm-xf86-v32 to use xterm+kbs
+            to match [45]xterm #272, reflecting packager's changes
+          + used  ANSI  reply for u8 in xterm-new, to reflect vt220-style
+            responses that could be returned.
+          + made xterm-pcolor sgr consistent with other capabilities
+
+   A few entries use extensions (user-defined terminal capabilities):
+     * add rmxx/smxx ECMA-48 strikeout extension to tmux and xterm-basic
+     * used RGB capability in new *-direct entries to denote direct-color
+       feature.
+
+  Documentation
+
+   As usual, this release
+     * improves documentation by describing new features,
+     * attempts  to  improve the description of features which users have
+       found confusing
+     * fills  in overlooked descriptions of features which were described
+       in the [46]NEWS file but treated sketchily in manual pages.
+
+   In particular,
+     * Since   the   underlying  features  for  [47]tset,  [48]tput,  and
+       [49]clear  have  been  better  integrated,  the  documentation now
+       includes information on how those tools evolved.
+       In  addition  to explaining the improved integration of the tools,
+       the  manual  pages made it easier to see how the tools are similar
+       and how they are different.
+     * The    addch   manual   page   has   additional   information   on
+       [50]portability and differences from other implementations.
+     * The  discussion  of  color-pairs  in the attributes manual page is
+       improved in its [51]history section.
+     * The  documentation  of the chtype, cchar_t types and the attribute
+       values  which  can  be  stored  in  those types, in particular the
+       [52]history  and [53]portability sections of the attributes manual
+       page, has been improved.
+     * improve discussion of [54]portability in the mouse manual.
+     * The   pad  manual  page  has  a  section  on  the  [55]origin  and
+       portability of pads.
+     * Differences between SVr4 and X/Open Curses soft-keys are discussed
+       in a new section on [56]portability.
+     * There   are   updated/improved   notes   on   portability  in  the
+       [57]resizeterm and [58]wresize manual pages.
+
+   In  addition  to  providing  background  information  to explain these
+   features   and   show   how   they  evolved,  there  are  corrections,
+   clarifications, etc.:
+     * add  note  in  the  [59]addch  manual  about  line-drawing when it
+       depends upon UTF-8.
+     * improve  discussion  of line-drawing characters in the [60]add_wch
+       manual.
+     * explain  in [61]clear's manual page that it writes to the standard
+       output.
+     * improve description of [62]endwin.
+     * improve  discussion  of  field  validation  in the [63]form driver
+       manual page.
+     * clarify the use of wint_t vs wchar_t in [64]get_wstr manual page.
+     * clarify  in  the  [65]getch manual that the keypad mode affects an
+       application's ability to read KEY_MOUSE codes, but does not affect
+       KEY_RESIZE.
+       trim  some  obsolete/incorrect  wording about EINTR from the getch
+       manual page
+       improve  manual  pages  for [66]getch and [67]get_wch to point out
+       that   they   might  return  user-defined  values  which  have  no
+       predefined names in <curses.h>
+     * improve  description  of  the  -R option in the [68]infocmp manual
+       page
+     * clarify in the [69]resizeterm manual page how KEY_RESIZE is pushed
+       onto the input stream.
+     * document return value of [70]use_extended_names
+     * document  differences  in [71]ESCDELAY versus AIX's implementation
+       in the variables manual page.
+     * The   _nc_free_tinfo   function   is   now   documented   in   the
+       [72]memory-leaks manual page, because it could be used in tack for
+       memory-leak checking.
+     * add a note to the [73]tic manual page about -W versus -f options.
+     * improve terminfo manual description of [74]terminfo syntax.
+       improve  terminfo  manual  page  discussion  of  [75]control-  and
+       graphics- characters.
+       improve [76]color-handling section in terminfo manual page
+     * clarify  description in [77]tput manual page regarding support for
+       termcap names
+       update  [78]tput  manual  page  to  reflect  changes to manipulate
+       terminal modes by sharing functions with tset.
+     * clarify  in manual pages that the optional verbose option level of
+       [79]tic   and  [80]infocmp  is  available  only  when  ncurses  is
+       configured for tracing.
+     * improve   manual   page   description   of  [81]tset/reset  versus
+       window-size.
+     * improve description of [82]tgoto parameters
+
+   There are new manual pages:
+     * [83]user_caps documents the terminfo extensions used by ncurses.
+     * [84]scr_dump documents the screen-dump format.
+
+   Some  of  the  improvements  are  more subtle, relating to the way the
+   information is presented:
+     * Made minor fixes to manpage NAME/SYNOPSIS sections to consistently
+       use  rule  that  either  all  functions  which  are  prototyped in
+       SYNOPSIS  are  listed in the NAME section, or the manual-page name
+       is the sole item listed in the NAME section. The latter is used to
+       reduce  clutter,  e.g.,  for the top-level library manual pages as
+       well  as  for  certain  feature-pages  such  as  [85]SP-funcs  and
+       [86]threading.
+     * improve  manual  pages  for utilities with respect to POSIX versus
+       X/Open Curses.
+     * improve  organization  of  the [87]attributes and [88]color manual
+       pages.
+
+  Interesting bug-fixes
+
+     * modify  toe  to not exit if unable to read a terminal description,
+       e.g., if there is a permission problem.
+     * correct 20100515 change for weak signals versus sigprocmask
+     * work  around  Ada  tool-breakage in Debian 9 and later by invoking
+       gprconfig  to  specify  the C compiler to be used by gnatmake, and
+       conditionally   suppressing   Library_Options   line   for  static
+       libraries.
+     * There were, as well, several bug-fixes to handle illegal input for
+       tic.   Because   those  did  not  correspond  to  useful  terminal
+       descriptions, most users are unaffected.
+
+  Configuration changes
+
+    Major changes
+
+   This  release  provides  a new binary format for terminal descriptions
+   that  use  extended  numeric capabilities. Applications built with the
+   wide-character ncursesw library can use these extended numbers.
+     * This includes utilities such as tic and infocmp, because (as noted
+       in  [89]New features), the feature relies upon an extension to the
+       low-level tinfo library.
+     * A  few  software  packagers  use a configuration option of ncurses
+       which  allows the low-level tinfo library to be shared between the
+       high-level  ncurses  and  ncursesw libraries. This new feature was
+       designed to work in that configuration as well.
+
+   Other  applications (i.e., using the 8-bit ncurses library) which read
+   the  extended terminal descriptions see those numeric capabilities set
+   to the maximum value for a signed 16-bit number.
+
+   Older   versions   of   ncurses'   tic   accept  out-of-range  numeric
+   capabilities,  storing  those as the maximum value for a signed 16-bit
+   number.  Other  implementations of curses (mentioned in the discussion
+   of [90]picsmap) give zero for these out-of-range capabilities.
+
+    Configuration options
+
+   These  changes  provide  support  for  tack 1.08, released in [91]July
+   2017:
+     * add   --without-tack   configure  option  to  refine  --with-progs
+       configure option. Normally tack is built outside the ncurses tree,
+       but  a  few packagers combine it during the build. If term_entry.h
+       is installed, there is no advantage to in-tree builds.
+     * adjust   configure-script   to  define  HAVE_CURSES_DATA_BOOLNAMES
+       symbol  needed  for  tack  1.08  when  built  in-tree. Rather than
+       relying upon internal "_nc_" functions, tack now uses the boolean,
+       number  and  string capability name-arrays provided by ncurses and
+       SVr4  Unix  curses. It still uses term_entry.h for the definitions
+       of the extended capability arrays.
+     * add  dependency  upon  ncurses_cfg.h  to  tic's  header-files; any
+       program  using  tic-library  will have to supply this file. Legacy
+       tack  versions  supply  this  file;  ongoing  tack development has
+       dropped  the dependency upon tic-library and new releases will not
+       be affected.
+
+   Other changes to the configure-script and generated files include
+     * add  configure  options to disable checks for form, menu and panel
+       libraries  so  that  ncurses-examples  can  be built with non-SVr4
+       curses implementations.
+     * add  configure  option  --enable-opaque-curses for ncurses library
+       and similar options for the other libraries.
+     * add configure option --disable-wattr-macros for use in cases where
+       one   wants   to   use  the  same  headers  for  ncurses5/ncurses6
+       development,  by suppressing the wattr* macros which differ due to
+       the introduction of extended colors
+     * modify  configure macro for shared-library rules to use -Wl,-rpath
+       rather than -rpath to work around a bug in scons
+     * improve  ncurses-examples'  configure  script  to define as needed
+       NCURSES_WIDECHAR  for  platforms where _XOPEN_SOURCE_EXTENDED does
+       not  work.  Also  modified  the  test  program  to  ensure that if
+       building  with  ncurses,  that  the cchar_t type is checked, since
+       that  is  normally  (since [92]20111030) ifdef'd depending on this
+       test.
+     * modify  configure  script  to handle the case where tic-library is
+       renamed,  but  the  --with-debug  option is used by itself without
+       normal or shared libraries
+     * modify  editing  script which generates resulting.map to work with
+       the clang configuration on recent FreeBSD, which gives an error on
+       an empty "local" section.
+     * improve configure check for setting the WILDCARD_SYMS variable; on
+       ppc64 the variable is in the Data section rather than Text.
+     * correct  result  of  configure  option  --without-fallbacks, which
+       caused FALLBACK_LIST to be set to "no"
+     * modify  --with-pkg-config-libdir  option  to  make  it possible to
+       install  ".pc"  files  even if pkg-config is not found. Limit this
+       change,  to suppress the actual install if it is not overridden to
+       a valid directory at install time.
+     * disallow "no" as a possible value for --with-shlib-version option,
+       overlooked in cleanup-changes for [93]20000708.
+
+  Portability
+
+   Many  of  the  portability  changes  are implemented via the configure
+   script:
+     * improve  configure  script's  CF_CC_ENV_FLAGS  macro  to allow for
+       compiler  wrappers  such  as  ccache.  This  change moves only the
+       preprocessor,  optimization  and  warning  flags  to  CPPFLAGS and
+       CFLAGS,  leaving the residue in CC. That happens to work for gcc's
+       various   "model"  options,  but  may  require  tuning  for  other
+       compilers.
+     * modify  ncurses-examples'  configure  script to use pkg-config for
+       the  extra  form/menu/panel  libraries, to be more consistent with
+       the handling of the curses/ncurses library.
+     * add  configuration  checks  to build with [94]NetBSD curses, which
+       for example lacks [95]use_env.
+     * change  ncurses-examples  to use attr_t vs chtype to follow X/Open
+       documentation   more   closely   since  Solaris  xpg4-curses  uses
+       different  values for WA_xxx vs A_xxx that rely on attr_t being an
+       unsigned  short.  Tru64  aka  OSF1, HPUX, AIX did as ncurses does,
+       equating the two sets.
+     * modify  several  test  programs  to  reflect  that  ncurses honors
+       existing  signal  handlers in initscr, while other implementations
+       do not.
+     * add  configure  check  for  openpty to ncurses-examples' configure
+       script, for ditto.
+     * improve check for working poll function by using posix_openpt as a
+       fallback in case there is no valid terminal on the standard input
+     * modify  ncurses-examples'  configure  script  to check for pthread
+       dependency  of  ncursest  or  ncursestw  library when building the
+       ncurses examples, e.g., in case weak symbols are used.
+     * add   checks   in  ncurses-examples'  configure  script  for  some
+       functions neither in 4.3BSD curses, nor based on X/Open Curses:
+          + modify  a  loop limit in firework.c to work around absense of
+            limit checks in some libraries.
+          + fill the last row of a window with "?" in firstlast if waddch
+            does not return ERR on the lower-right corner.
+     * build-fixes for the Portland Group (PGI) compilers
+          + accept whitespace in sed expression for generating expanded.c
+          + modify  configure  check  that  g++ compiler warnings are not
+            used.
+          + add  configure  check  for  -fPIC  option  needed  for shared
+            libraries.
+     * modify  configure  script  for  clang  as used on FreeBSD, to work
+       around clang's differences in exit codes vs gcc.
+     * fixes for configure/build using clang on OSX
+          + do   not   redefine   "inline"  in  ncurses_cfg.h;  this  was
+            originally to solve a problem with gcc/g++, but is aggravated
+            by clang's misuse of symbols to pretend it is gcc.
+          + add  braces  to configure script to prevent unwanted addition
+            of "-lstdc++" option to the CXXLIBS symbol.
+          + improve/update  test-program  used  for checking existence of
+            stdc++ library.
+          + if $CXXLIBS is set, the linkage test uses that in addition to
+            $LIBS.
+     * fixes for OS/2:
+          + use  button  instead  of  kbuf[0]  in  EMX-specific  part  of
+            lib_mouse.c
+          + support building with libtool on OS/2
+          + use stdc++ library with OS/2 kLIBC
+          + clear  configure  script's  cf_XOPEN_SOURCE for OS/2, to work
+            with its header files
+     * add  "newer"  baudrate symbols to the [96]baudrate function in the
+       ncurses library as well as to a corresponding table in tset.
+     * modify ncurses-examples savescreen to work with AIX and HPUX.
+     * define WIN32_LEAN_AND_MEAN for MinGW port, making builds faster.
+     * add  a configure check for wcwidth versus the ncurses line-drawing
+       characters,  to  use  in  special-casing  systems such as Solaris.
+       Solaris,  however,  requires  a  special  case  that  maps Unicode
+       line-drawing  characters  into  the  acsc  string  for non-Unicode
+       locales.  Solaris also has a misconfigured wcwidth which marks all
+       of the line drawing characters as double-width.
+     * string-hacks (non-standard):
+          + fix  configure  script  to  record  when  strlcat is found on
+            OpenBSD.
+          + add   --enable-string-hacks   option   to   ncurses-examples'
+            configure script.
+          + completed  string-hacks  for  sprintf,  etc.,  including  the
+            ncurses-examples programs.
+          + make   --enable-string-hacks   option  work  with  Debian  by
+            checking   for   the   "bsd"   library   and  its  associated
+            "<bsd/string.h>" header.
+     * workaround for Debian's antique/unmaintained version of mawk:
+          + see  Debian  #65617,  which  was  fixed  in  mawk's  upstream
+            releases in [97]2009.
+          + related fixes when building link_test.
+     _________________________________________________________________
+
+Features of ncurses
+
+   The  ncurses  package  is  fully upward-compatible with SVr4 (System V
+   Release 4) curses:
+     * All of the SVr4 calls have been implemented (and are documented).
+     * ncurses  supports  all  of  the for SVr4 curses features including
+       keyboard  mapping,  color,  forms-drawing with ACS characters, and
+       automatic recognition of keypad and function keys.
+     * ncurses  provides  these SVr4 add-on libraries (not part of X/Open
+       Curses):
+          + the  panels  library,  supporting  a  stack  of  windows with
+            backing store.
+          + the   menus   library,  supporting  a  uniform  but  flexible
+            interface for menu programming.
+          + the   form   library,   supporting  data  collection  through
+            on-screen forms.
+     * ncurses's  terminal database is fully compatible with that used by
+       SVr4 curses.
+          + ncurses  supports user-defined capabilities which it can see,
+            but  which are hidden from SVr4 curses applications using the
+            same terminal database.
+          + It  can  be optionally configured to match the format used in
+            related systems such as AIX and Tru64.
+          + Alternatively,  ncurses  can  be  configured  to  use  hashed
+            databases  rather  than  the  directory of files used by SVr4
+            curses.
+     * The ncurses utilities have options to allow you to filter terminfo
+       entries for use with less capable curses/terminfo versions such as
+       the HP/UX and AIX ports.
 
    The ncurses package also has many useful extensions over SVr4:
      * The  API  is 8-bit clean and base-level conformant with the X/OPEN
@@ -96,8 +960,7 @@
        use of function keys, e.g., disabling the ncurses KEY_MOUSE, or by
        defining  more  than  one  control  sequence to map to a given key
        code.
-     * Support  for  256-color  terminals,  such  as  modern  xterm, when
-       configured using the --enable-ext-colors option.
+     * Support for 256-color terminals, such as modern xterm.
      * Support for 16-color terminals, such as aixterm and modern xterm.
      * Better  cursor-movement  optimization.  The package now features a
        cursor-local-movement computation more efficient than either BSD's
@@ -119,10 +982,10 @@
        types  even  when  no  terminfo tree or termcap file is accessible
        (this  may  be useful for support of screen-oriented programs that
        must run in single-user mode).
-     * The tic(1)/captoinfo utility provided with ncurses has the ability
-       to  translate many termcaps from the XENIX, IBM and AT&T extension
-       sets.
-     * A BSD-like tset(1) utility is provided.
+     * The  [98]tic/[99]captoinfo  utility  provided with ncurses has the
+       ability  to  translate  many termcaps from the XENIX, IBM and AT&T
+       extension sets.
+     * A BSD-like [100]tset utility is provided.
      * The ncurses library and utilities will automatically read terminfo
        entries  from  $HOME/.terminfo  if  it exists, and compile to that
        directory  if  it  exists  and the user has no write access to the
@@ -137,152 +1000,369 @@
        other entries in the same source file (as in System V) but also to
        compiled  entries  in  either the system terminfo directory or the
        user's $HOME/.terminfo directory.
-     * A  script  (capconvert)  is  provided to help BSD users transition
-       from  termcap to terminfo. It gathers the information in a TERMCAP
-       environment  variable  and/or  a ~/.termcap local entries file and
-       converts   it   to   an   equivalent  local  terminfo  tree  under
-       $HOME/.terminfo.
-     * Automatic  fallback  to  the  /etc/termcap file can be compiled in
-       when  it is not possible to build a terminfo tree. This feature is
-       neither  fast  nor cheap, you don't want to use it unless you have
-       to, but it's there.
-     * The  table-of-entries  utility  toe makes it easy for users to see
-       exactly what terminal types are available on the system.
+     * The  table-of-entries  utility [101]toe makes it easy for users to
+       see exactly what terminal types are available on the system.
      * The library meets the XSI requirement that every macro entry point
        have  a  corresponding  function  which may be linked (and will be
        prototype-checked)  if  the  macro  definition  is  disabled  with
        #undef.
-     * An  HTML  "Introduction  to  Programming  with  NCURSES"  document
-       provides  a  narrative  introduction  to  the  curses  programming
-       interface.
+     * Extensive  documentation  is  provided  (see  the  [102]Additional
+       Reading section of the [103]ncurses FAQ for online documentation).
+
+Applications using ncurses
+
+   The  ncurses  distribution  includes  a  selection  of  test  programs
+   (including   a   few   games).   These  are  available  separately  as
+   [104]ncurses-examples
 
-                             State of the Package
+   The   ncurses   library  has  been  tested  with  a  wide  variety  of
+   applications including:
 
-   Numerous bugs present in earlier versions have been fixed; the library
-   is  far  more  reliable  than  it  used to be. Bounds checking in many
-   `dangerous'  entry points has been improved. The code is now type-safe
-   according  to gcc -Wall. The library has been checked for malloc leaks
-   and arena corruption by the Purify memory-allocation tester.
+   aptitude
+          FrontEnd to Apt, the debian package manager
 
-   The  ncurses  code has been tested with a wide variety of applications
-   including (versions starting with those noted):
+          [105]https://wiki.debian.org/Aptitude
 
    cdk
           Curses Development Kit
-          [6]http://invisible-island.net/cdk/
-          [7]http://www.vexus.ca/products/CDK/
+
+          [106]https://invisible-island.net/cdk/
 
    ded
           directory-editor
-          [8]http://invisible-island.net/ded/
+
+          [107]https://invisible-island.net/ded/
 
    dialog
           the  underlying  application used in Slackware's setup, and the
-          basis for similar applications on GNU/Linux.
-          [9]http://invisible-island.net/dialog/
+          basis   for  similar  install/configure  applications  on  many
+          systems.
+
+          [108]https://invisible-island.net/dialog/
 
    lynx
-          the character-screen WWW browser
-          [10]http://lynx.isc.org/release/
+          the text WWW browser
 
-   Midnight Commander
-          file manager
-          [11]http://www.midnight-commander.org/
+          [109]https://lynx.invisible-island.net/
 
    mutt
           mail utility
-          [12]http://www.mutt.org/
+
+          [110]http://www.mutt.org/
 
    ncftp
           file-transfer utility
-          [13]http://www.ncftp.com/
+
+          [111]https://www.ncftp.com/
 
    nvi
-          New vi versions 1.50 are able to use ncurses versions 1.9.7 and
-          later.
-          [14]https://sites.google.com/a/bostic.com/keithbostic/nvi
+          New vi uses ncurses.
+
+          [112]https://sites.google.com/a/bostic.com/keithbostic/vi
+
+   ranger
+          A console file manager with VI key bindings in Python.
 
-   pinfo
-          Lynx-like info browser.
-          [15]https://alioth.debian.org/projects/pinfo/
+          [113]https://ranger.github.io/
 
    tin
-          newsreader, supporting color, MIME [16]http://www.tin.org/
+          newsreader, supporting color, MIME
+
+          [114]http://www.tin.org/
+
+   vifm
+          File manager with vi like keybindings
+
+          [115]https://vifm.info/
 
    as well as some that use ncurses for the terminfo support alone:
 
    minicom
-          terminal emulator
-          [17]http://alioth.debian.org/projects/minicom/
+          terminal emulator for serial modem connections
+
+          [116]https://alioth.debian.org/projects/minicom/
+
+   mosh
+          a replacement for ssh.
+
+          [117]https://mosh.mit.edu/
+
+   tack
+          terminfo action checker
+
+          [118]https://invisible-island.net/ncurses/tack.html
+
+   tmux
+          terminal multiplexor
+
+          [119]https://github.com/tmux/tmux/wiki
 
    vile
-          vi-like-emacs
-          [18]http://invisible-island.net/vile/
+          vi-like-emacs  may  be  built  to  use the terminfo, termcap or
+          curses interfaces.
 
-   The  ncurses  distribution  includes  a  selection  of  test  programs
-   (including a few games).
+          [120]https://invisible-island.net/vile/
+
+   and finally, those which use only the termcap interface:
 
-Who's Who and What's What
+   emacs
+          text editor
 
-   Zeyd  Ben-Halim started it from a previous package pcurses, written by
-   Pavel  Curtis.  Eric S. Raymond continued development. Juergen Pfeifer
-   wrote  most of the form and menu libraries. Ongoing work is being done
-   by  [19]Thomas  Dickey.  Thomas  Dickey acts as the maintainer for the
-   Free  Software  Foundation,  which  holds  the  copyright  on ncurses.
-   Contact the current maintainers at [20]bug-ncurses@gnu.org.
+          [121]https://www.gnu.org/software/emacs/
 
-   To   join   the   ncurses   mailing   list,   please  write  email  to
-   bug-ncurses-request@gnu.org containing the line:
-             subscribe <name>@<host.domain>
+   less
+          The  most  commonly  used  pager  (a program that displays text
+          files).
+
+          [122]http://www.greenwoodsoftware.com/less/
+
+   screen
+          terminal multiplexor
+
+          [123]https://www.gnu.org/software/screen/
+
+   vim
+          text editor
+
+          [124]https://www.vim.org/
+
+Development activities
+
+   Zeyd  Ben-Halim  started  ncurses  from  a  previous  package pcurses,
+   written  by  Pavel  Curtis.  Eric  S.  Raymond  continued development.
+   Juergen  Pfeifer  wrote  most  of the form and menu libraries. Ongoing
+   development  work  is  done  by [125]Thomas Dickey. Thomas Dickey also
+   acts  as  the maintainer for the Free Software Foundation, which holds
+   the [126]copyright on ncurses.
+
+   Contact the current maintainers at
+
+     [127]bug-ncurses@gnu.org
+
+   To join the ncurses mailing list, please write email to
+
+     [128]bug-ncurses-request@gnu.org
+
+   containing the line:
+
+     subscribe <name>@<host.domain>
 
    This list is open to anyone interested in helping with the development
    and testing of this package.
 
    Beta  versions  of ncurses and patches to the current release are made
-   available at [21]ftp://invisible-island.net/ncurses/ .
+   available at
+
+     [129]ftp://ftp.invisible-island.net/ncurses/ and
+     [130]https://invisible-mirror.net/archives/ncurses/ .
 
-Future Plans
+   There is an archive of the mailing list here:
 
-     * Extended-level   XPG4   conformance,   with   internationalization
-       support.
-     * Ports to more systems, including DOS and Windows.
+     [131]http://lists.gnu.org/archive/html/bug-ncurses            (also
+     [132]https)
 
-   We  need  people to help with these projects. If you are interested in
-   working on them, please join the ncurses list.
+Related resources
 
-Other Related Resources
+   The  release notes make scattered references to these pages, which may
+   be interesting by themselves:
+     * [133]ncurses licensing
+     * [134]Symbol versioning in ncurses
+     * [135]Comments on ncurses versus slang (S-Lang)
+     * [136]tack - terminfo action checker
+     * [137]tctest - termcap library checker
+     * [138]Terminal Database
+
+Other resources
 
    The  distribution  provides  a  newer  version  of the terminfo-format
-   terminal description file once maintained by [22]Eric Raymond . Unlike
-   the  older  version, the termcap and terminfo data are provided in the
-   same  file,  and provides several user-definable extensions beyond the
-   X/Open specification.
+   terminal  description  file  once  maintained  by  [139]Eric Raymond .
+   Unlike  the  older version, the termcap and terminfo data are provided
+   in   the   same  file,  which  also  provides  several  user-definable
+   extensions beyond the X/Open specification.
 
    You  can  find  lots  of  information  on  terminal-related topics not
-   covered in the terminfo file at [23]Richard Shuford's archive .
+   covered in the terminfo file at [140]Richard Shuford's archive .
+
+     * [141]Overview
+     * [142]Release Notes
+          + [143]Library improvements
+               o [144]New features
+               o [145]Other improvements
+          + [146]Program improvements
+               o [147]Utilities
+               o [148]Examples
+          + [149]Terminal database
+          + [150]Documentation
+          + [151]Interesting bug-fixes
+          + [152]Configuration changes
+               o [153]Major changes
+               o [154]Configuration options
+          + [155]Portability
+     * [156]Features of ncurses
+     * [157]Applications using ncurses
+     * [158]Development activities
+     * [159]Related resources
+     * [160]Other resources
 
 References
 
-   1. ftp://ftp.gnu.org/gnu/ncurses/
-   2. ftp://invisible-island.net/ncurses/
-   3. http://invisible-island.net/ncurses/man/form_fieldtype.3x
-   4. http://invisible-island.net/ncurses/ncurses-Ada95.html
-   5. http://invisible-island.net/ncurses/ncurses-examples.html
-   6. http://invisible-island.net/cdk/
-   7. http://www.vexus.ca/products/CDK/
-   8. http://invisible-island.net/ded/
-   9. http://invisible-island.net/dialog/
-  10. http://lynx.isc.org/release/
-  11. http://www.midnight-commander.org/
-  12. http://www.mutt.org/
-  13. http://www.ncftp.com/
-  14. https://sites.google.com/a/bostic.com/keithbostic/nvi
-  15. https://alioth.debian.org/projects/pinfo/
-  16. http://www.tin.org/
-  17. http://alioth.debian.org/projects/minicom/
-  18. http://invisible-island.net/vile/
-  19. mailto:dickey@invisible-island.net
-  20. mailto:bug-ncurses@gnu.org
-  21. ftp://invisible-island.net/ncurses/
-  22. http://www.catb.org/~esr/terminfo/
-  23. http://web.archive.org/web/*/http://www.cs.utk.edu/~shuford/terminal
+   1. https://invisible-island.net/ncurses/man/captoinfo.1m.html
+   2. https://invisible-island.net/ncurses/man/clear.1.html
+   3. https://invisible-island.net/ncurses/man/infocmp.1m.html
+   4. https://invisible-island.net/ncurses/man/tabs.1.html
+   5. https://invisible-island.net/ncurses/man/tic.1m.html
+   6. https://invisible-island.net/ncurses/man/toe.1m.html
+   7. https://invisible-island.net/ncurses/man/tput.1.html
+   8. https://invisible-island.net/ncurses/man/tset.1.html
+   9. https://invisible-island.net/ncurses/
+  10. ftp://ftp.invisible-island.net/ncurses/
+  11. https://invisible-mirror.net/archives/ncurses/
+  12. ftp://ftp.gnu.org/gnu/ncurses/
+  13. https://invisible-island.net/ncurses/man/curs_kernel.3x.html#h3-def_prog_mode_-def_shell_mode
+  14. https://invisible-island.net/ncurses/ncurses-mapsyms.html
+  15. https://invisible-island.net/ncurses/tctest.html#bsd42-numeric-caps
+  16. https://invisible-island.net/ncurses/ncurses-slang.html#cause_numbers
+  17. https://invisible-island.net/ncurses/tack.html#portable
+  18. https://invisible-island.net/ncurses/tack/CHANGES.html#index-t20170726
+  19. https://invisible-island.net/ncurses/man/curs_attr.3x.html#h2-EXTENSIONS
+  20. https://invisible-island.net/ncurses/man/tset.1.html#h3-reset---reinitialization
+  21. https://invisible-island.net/ncurses/man/tset.1.html
+  22. https://invisible-island.net/ncurses/man/tput.1.html
+  23. https://invisible-island.net/ncurses/man/tset.1.html#h3-reset---reinitialization
+  24. https://invisible-island.net/ncurses/man/clear.1.html
+  25. https://invisible-island.net/ncurses/tctest.html#bsd42-ctl-question
+  26. https://invisible-island.net/ncurses/tctest.html#freebsd-ctl-question
+  27. https://invisible-island.net/ncurses/ncurses-examples.html
+  28. https://invisible-island.net/ncurses/man/new_pair.3x.html#h3-alloc_pair
+  29. https://invisible-island.net/ncurses/man/new_pair.3x.html#h3-find_pair
+  30. https://invisible-island.net/ncurses/man/new_pair.3x.html#h3-free_pair
+  31. https://invisible-island.net/ncurses/ncurses-slang.html#compare_picsmap
+  32. https://invisible-island.net/dialog/
+  33. https://invisible-island.net/dialog/manpage/dialog.html#h3-Common-Options
+  34. https://invisible-island.net/xterm/xterm.log.html#xterm_331
+  35. https://invisible-island.net/ncurses/terminfo.src.html#toc-_A_N_S_I__S_Y_S__I_S_O_6429__E_C_M_A-48__Capabilities
+  36. https://invisible-island.net/ncurses/terminfo.src.html#tic-icl6404
+  37. https://invisible-island.net/ncurses/terminfo.src.html#tic-interix
+  38. https://invisible-island.net/ncurses/terminfo.src.html#toc-_Linux_consoles
+  39. https://invisible-island.net/ncurses/terminfo.src.html#toc-_Open_B_S_D_consoles
+  40. https://invisible-island.net/ncurses/terminfo.src.html#toc-_Tmux
+  41. https://invisible-island.net/ncurses/terminfo.src.html#toc-_D_E_C__V_T100_and_compatibles
+  42. https://invisible-island.net/ncurses/terminfo.src.html#toc-_G_N_O_M_E__V_T_E_
+  43. https://invisible-island.net/ncurses/terminfo.src.html#toc-_X_T_E_R_M
+  44. https://invisible-island.net/xterm/xterm.log.html#xterm_32
+  45. https://invisible-island.net/xterm/xterm.log.html#xterm_272
+  46. https://invisible-island.net/ncurses/NEWS.html
+  47. https://invisible-island.net/ncurses/man/clear.1.html#h2-HISTORY
+  48. https://invisible-island.net/ncurses/man/clear.1.html#h2-HISTORY
+  49. https://invisible-island.net/ncurses/man/clear.1.html#h2-HISTORY
+  50. https://invisible-island.net/ncurses/man/curs_addch.3x.html#h2-PORTABILITY
+  51. https://invisible-island.net/ncurses/man/curs_attr.3x.html#h2-HISTORY
+  52. https://invisible-island.net/ncurses/man/curs_attr.3x.html#h2-HISTORY
+  53. https://invisible-island.net/ncurses/man/curs_attr.3x.html#h2-PORTABILITY
+  54. https://invisible-island.net/ncurses/man/curs_mouse.3x.html#h2-PORTABILITY
+  55. https://invisible-island.net/ncurses/man/curs_pad.3x.html#h2-PORTABILITY
+  56. https://invisible-island.net/ncurses/man/curs_slk.3x.html#h2-PORTABILITY
+  57. https://invisible-island.net/ncurses/man/resizeterm.3x.html#h2-PORTABILITY
+  58. https://invisible-island.net/ncurses/man/wresize.3x.html#h2-PORTABILITY
+  59. https://invisible-island.net/ncurses/man/curs_addch.3x.html#h3-ACS-Symbols
+  60. https://invisible-island.net/ncurses/man/curs_add_wch.3x.html
+  61. https://invisible-island.net/ncurses/man/clear.1.html#h2-DESCRIPTION
+  62. https://invisible-island.net/ncurses/man/curs_initscr.3x.html#h3-endwin
+  63. https://invisible-island.net/ncurses/man/form_driver.3x.html
+  64. https://invisible-island.net/ncurses/man/curs_get_wstr.3x.html#h2-RETURN-VALUE
+  65. https://invisible-island.net/ncurses/man/curs_getch.3x.html#h3-Predefined-key-codes
+  66. https://invisible-island.net/ncurses/man/curs_getch.3x.html#h3-Keypad-Mode
+  67. https://invisible-island.net/ncurses/man/curs_get_wch.3x.html#h2-DESCRIPTION
+  68. https://invisible-island.net/ncurses/man/infocmp.1m.html
+  69. https://invisible-island.net/ncurses/man/resizeterm.3x.html#h2-NOTES
+  70. https://invisible-island.net/ncurses/man/curs_extend.3x#h2-RETURN-VALUE
+  71. https://invisible-island.net/ncurses/man/curs_variables.3x.html#h2-PORTABILITY
+  72. https://invisible-island.net/ncurses/man/curs_memleaks.3x.html
+  73. https://invisible-island.net/ncurses/man/tic.1m.html
+  74. https://invisible-island.net/ncurses/man/terminfo.5.html#h3-Terminfo-Capabilities-Syntax
+  75. https://invisible-island.net/ncurses/man/terminfo.5.html#h3-Line-Graphics
+  76. https://invisible-island.net/ncurses/man/terminfo.5.html#h3-Color-Handling
+  77. https://invisible-island.net/ncurses/man/tput.1.html#h2-PORTABILITY
+  78. https://invisible-island.net/ncurses/man/tput.1.html#h3-Aliases
+  79. https://invisible-island.net/ncurses/man/tic.1m.html#h2-OPTIONS
+  80. https://invisible-island.net/ncurses/man/infocmp.1m.html#h3-Other-Options
+  81. https://invisible-island.net/ncurses/man/tset.1.html
+  82. https://invisible-island.net/ncurses/man/curs_termcap.3x.html#h3-FORMATTING-CAPABILITIES
+  83. https://invisible-island.net/ncurses/man/user_caps.5.html
+  84. https://invisible-island.net/ncurses/man/scr_dump.5.html
+  85. https://invisible-island.net/ncurses/man/curs_sp_funcs.3x.html
+  86. https://invisible-island.net/ncurses/man/curs_threads.3x.html
+  87. https://invisible-island.net/ncurses/man/curs_attr.3x.html
+  88. file:///ncurses/man/curs_color.3x.html
+  89. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h4-new-library
+  90. https://invisible-island.net/ncurses/ncurses-slang.html#compare_picsmap
+  91. https://invisible-island.net/ncurses/tack/CHANGES.html#index-t20170726
+  92. https://invisible-island.net/ncurses/NEWS.html#t20111030
+  93. https://invisible-island.net/ncurses/NEWS.html#t20000708
+  94. https://invisible-island.net/ncurses/ncurses-netbsd.html
+  95. https://invisible-island.net/ncurses/man/curs_util.3x.html#h3-use_env
+  96. https://invisible-island.net/ncurses/man/curs_termattrs.3x.html#h3-baudrate
+  97. https://invisible-island.net/mawk/CHANGES.html#t20090727
+  98. https://invisible-island.net/ncurses/man/tic.1m.html
+  99. https://invisible-island.net/ncurses/man/captoinfo.1m.html
+ 100. https://invisible-island.net/ncurses/man/tset.1.html
+ 101. https://invisible-island.net/ncurses/man/toe.1m.html
+ 102. https://invisible-island.net/ncurses/ncurses.faq.html#additional_reading
+ 103. https://invisible-island.net/ncurses/ncurses.faq.html
+ 104. https://invisible-island.net/ncurses/ncurses-examples.html
+ 105. https://wiki.debian.org/Aptitude
+ 106. https://invisible-island.net/cdk/
+ 107. https://invisible-island.net/ded/
+ 108. https://invisible-island.net/dialog/
+ 109. https://lynx.invisible-island.net/
+ 110. http://www.mutt.org/
+ 111. https://www.ncftp.com/
+ 112. https://sites.google.com/a/bostic.com/keithbostic/vi
+ 113. https://ranger.github.io/
+ 114. http://www.tin.org/
+ 115. https://vifm.info/
+ 116. https://alioth.debian.org/projects/minicom/
+ 117. https://mosh.mit.edu/
+ 118. https://invisible-island.net/ncurses/tack.html
+ 119. https://github.com/tmux/tmux/wiki
+ 120. https://invisible-island.net/vile/
+ 121. https://www.gnu.org/software/emacs/
+ 122. http://www.greenwoodsoftware.com/less/
+ 123. https://www.gnu.org/software/screen/
+ 124. https://www.vim.org/
+ 125. mailto:dickey@invisible-island.net
+ 126. https://invisible-island.net/ncurses/ncurses-license.html
+ 127. mailto:bug-ncurses@gnu.org
+ 128. mailto:bug-ncurses-request@gnu.org
+ 129. ftp://ftp.invisible-island.net/ncurses/
+ 130. https://invisible-mirror.net/archives/ncurses/
+ 131. http://lists.gnu.org/archive/html/bug-ncurses
+ 132. https://lists.gnu.org/archive/html/bug-ncurses
+ 133. https://invisible-island.net/ncurses/ncurses-license.html
+ 134. https://invisible-island.net/ncurses/ncurses-mapsyms.html
+ 135. https://invisible-island.net/ncurses/ncurses-slang.html
+ 136. https://invisible-island.net/ncurses/tack.html
+ 137. https://invisible-island.net/ncurses/tctest.html
+ 138. https://invisible-island.net/ncurses/ncurses.html#download_database
+ 139. http://www.catb.org/~esr/terminfo/
+ 140. http://web.archive.org/web/*/http://www.cs.utk.edu/~shuford/terminal
+ 141. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h2-overview
+ 142. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h2-release-notes
+ 143. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h3-library
+ 144. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h4-new-library
+ 145. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h4-fixes-library
+ 146. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h3-programs
+ 147. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h4-utilities
+ 148. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h4-examples
+ 149. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h3-database
+ 150. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h3-documentation
+ 151. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h3-bug-fixes
+ 152. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h3-config-config
+ 153. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h4-config-major
+ 154. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h4-config-options
+ 155. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h3-portability
+ 156. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h2-features
+ 157. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h2-who-uses
+ 158. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h2-development
+ 159. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h2-this-stuff
+ 160. file:///usr/build/ncurses/ncurses-6.1-20180127/doc/html/announce.html#h2-other-stuff
diff --git a/AUTHORS b/AUTHORS
index 57904c404537..708e1ef735b2 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -1,5 +1,5 @@
 -------------------------------------------------------------------------------
--- Copyright (c) 2006 Free Software Foundation, Inc.                         --
+-- Copyright (c) 2006,2017 Free Software Foundation, Inc.                    --
 --                                                                           --
 -- Permission is hereby granted, free of charge, to any person obtaining a   --
 -- copy of this software and associated documentation files (the             --
@@ -25,7 +25,7 @@
 -- sale, use or other dealings in this Software without prior written        --
 -- authorization.                                                            --
 -------------------------------------------------------------------------------
--- $Id: AUTHORS,v 1.2 2006/10/28 21:44:52 tom Exp $
+-- $Id: AUTHORS,v 1.3 2017/02/04 15:20:52 tom Exp $
 -------------------------------------------------------------------------------
 These are the principal authors/contributors of ncurses since 1.9.9e,
 in decreasing order of their contribution:
@@ -36,3 +36,4 @@ ESR	Eric S Raymond
 AVL	Alexander V Lukyanov
 PB	Philippe Blain
 SV	Sven Verdoolaege
+NB  Nicolas Boulenguez
diff --git a/Ada95/Makefile.in b/Ada95/Makefile.in
index f82079330210..4d80fe386c1b 100644
--- a/Ada95/Makefile.in
+++ b/Ada95/Makefile.in
@@ -1,6 +1,6 @@
-# $Id: Makefile.in,v 1.21 2010/11/27 21:45:27 tom Exp $
+# $Id: Makefile.in,v 1.22 2015/08/05 23:15:41 tom Exp $
 ##############################################################################
-# Copyright (c) 1998-2003,2010 Free Software Foundation, Inc.                #
+# Copyright (c) 1998-2010,2015 Free Software Foundation, Inc.                #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
 # copy of this software and associated documentation files (the "Software"), #
@@ -30,9 +30,9 @@
 #  Author:  Juergen Pfeifer, 1996
 #
 #  Version Control
-#  $Revision: 1.21 $
+#  $Revision: 1.22 $
 #
-SHELL		= /bin/sh
+SHELL		= @SHELL@
 VPATH		= @srcdir@
 THIS		= Makefile
 
diff --git a/Ada95/README b/Ada95/README
index be8425969de9..ea9ae80e761d 100644
--- a/Ada95/README
+++ b/Ada95/README
@@ -1,5 +1,5 @@
 -------------------------------------------------------------------------------
--- Copyright (c) 1998 Free Software Foundation, Inc.                         --
+-- Copyright (c) 1998,2003 Free Software Foundation, Inc.                    --
 --                                                                           --
 -- Permission is hereby granted, free of charge, to any person obtaining a   --
 -- copy of this software and associated documentation files (the             --
diff --git a/Ada95/aclocal.m4 b/Ada95/aclocal.m4
index fc9c0a86717b..057abc8c4fa7 100644
--- a/Ada95/aclocal.m4
+++ b/Ada95/aclocal.m4
@@ -1,5 +1,5 @@
 dnl***************************************************************************
-dnl Copyright (c) 2010-2013,2014 Free Software Foundation, Inc.              *
+dnl Copyright (c) 2010-2019,2020 Free Software Foundation, Inc.              *
 dnl                                                                          *
 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
 dnl copy of this software and associated documentation files (the            *
@@ -28,18 +28,20 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey
 dnl
-dnl $Id: aclocal.m4,v 1.78 2014/02/10 00:41:59 tom Exp $
+dnl $Id: aclocal.m4,v 1.151 2020/01/11 23:42:04 tom Exp $
 dnl Macros used in NCURSES Ada95 auto-configuration script.
 dnl
 dnl These macros are maintained separately from NCURSES.  The copyright on
 dnl this file applies to the aggregation of macros and does not affect use of
 dnl these macros in other applications.
 dnl
-dnl See http://invisible-island.net/autoconf/ for additional information.
+dnl See these pages for additional information:
+dnl		https://invisible-island.net/autoconf/
+dnl		https://invisible-island.net/autoconf/my-autoconf.html
 dnl
 dnl ---------------------------------------------------------------------------
 dnl ---------------------------------------------------------------------------
-dnl CF_ACVERSION_CHECK version: 4 updated: 2013/03/04 19:52:56
+dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
 dnl ------------------
 dnl Conditionally generate script according to whether we're using a given autoconf.
 dnl
@@ -48,7 +50,7 @@ dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
 dnl $3 = code to use if AC_ACVERSION is older than $1.
 define([CF_ACVERSION_CHECK],
 [
-ifdef([AC_ACVERSION], ,[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])dnl
+ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
 ifdef([m4_version_compare],
 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
 [CF_ACVERSION_COMPARE(
@@ -97,7 +99,7 @@ AC_DEFUN([CF_ADD_ADAFLAGS],[
 	AC_SUBST(ADAFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_CFLAGS version: 10 updated: 2010/05/26 05:38:42
+dnl CF_ADD_CFLAGS version: 13 updated: 2017/02/25 18:57:40
 dnl -------------
 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
 dnl The second parameter if given makes this macro verbose.
@@ -115,51 +117,51 @@ cf_new_extra_cppflags=
 for cf_add_cflags in $1
 do
 case $cf_fix_cppflags in
-no)
-	case $cf_add_cflags in #(vi
-	-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi
+(no)
+	case $cf_add_cflags in
+	(-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 		case $cf_add_cflags in
-		-D*)
+		(-D*)
 			cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
 
-			test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+			test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 				&& test -z "${cf_tst_cflags}" \
 				&& cf_fix_cppflags=yes
 
 			if test $cf_fix_cppflags = yes ; then
-				cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+				CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 				continue
 			elif test "${cf_tst_cflags}" = "\"'" ; then
-				cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+				CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 				continue
 			fi
 			;;
 		esac
 		case "$CPPFLAGS" in
-		*$cf_add_cflags) #(vi
+		(*$cf_add_cflags)
 			;;
-		*) #(vi
-			case $cf_add_cflags in #(vi
-			-D*)
+		(*)
+			case $cf_add_cflags in
+			(-D*)
 				cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 				CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
 				;;
 			esac
-			cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
+			CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
 			;;
 		esac
 		;;
-	*)
-		cf_new_cflags="$cf_new_cflags $cf_add_cflags"
+	(*)
+		CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
 		;;
 	esac
 	;;
-yes)
-	cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+(yes)
+	CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
 
 	cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
 
-	test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+	test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 		&& test -z "${cf_tst_cflags}" \
 		&& cf_fix_cppflags=no
 	;;
@@ -168,24 +170,24 @@ done
 
 if test -n "$cf_new_cflags" ; then
 	ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
-	CFLAGS="$CFLAGS $cf_new_cflags"
+	CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
 fi
 
 if test -n "$cf_new_cppflags" ; then
 	ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
-	CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
+	CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
 fi
 
 if test -n "$cf_new_extra_cppflags" ; then
 	ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
-	EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
+	CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
 fi
 
 AC_SUBST(EXTRA_CPPFLAGS)
 
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_INCDIR version: 13 updated: 2010/05/26 16:44:57
+dnl CF_ADD_INCDIR version: 15 updated: 2018/06/20 20:23:13
 dnl -------------
 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
@@ -216,7 +218,7 @@ if test -n "$1" ; then
 			if test "$GCC" = yes
 			then
 			  cf_save_CPPFLAGS=$CPPFLAGS
-			  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
+			  CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
 			  AC_TRY_COMPILE([#include <stdio.h>],
 				  [printf("Hello")],
 				  [],
@@ -236,6 +238,8 @@ if test -n "$1" ; then
 		else
 		  break
 		fi
+	  else
+		break
 	  fi
 	done
   done
@@ -250,7 +254,7 @@ dnl $1 = library to add, without the "-l"
 dnl $2 = variable to update (default $LIBS)
 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_LIBDIR version: 9 updated: 2010/05/26 16:44:57
+dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
 dnl -------------
 dnl	Adds to the library-path
 dnl
@@ -262,37 +266,55 @@ dnl
 AC_DEFUN([CF_ADD_LIBDIR],
 [
 if test -n "$1" ; then
-  for cf_add_libdir in $1
-  do
-    if test $cf_add_libdir = /usr/lib ; then
-      :
-    elif test -d $cf_add_libdir
-    then
-      cf_have_libdir=no
-      if test -n "$LDFLAGS$LIBS" ; then
-        # a loop is needed to ensure we can add subdirs of existing dirs
-        for cf_test_libdir in $LDFLAGS $LIBS ; do
-          if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
-            cf_have_libdir=yes; break
-          fi
-        done
-      fi
-      if test "$cf_have_libdir" = no ; then
-        CF_VERBOSE(adding $cf_add_libdir to library-path)
-        ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
-      fi
-    fi
-  done
+	for cf_add_libdir in $1
+	do
+		if test $cf_add_libdir = /usr/lib ; then
+			:
+		elif test -d $cf_add_libdir
+		then
+			cf_have_libdir=no
+			if test -n "$LDFLAGS$LIBS" ; then
+				# a loop is needed to ensure we can add subdirs of existing dirs
+				for cf_test_libdir in $LDFLAGS $LIBS ; do
+					if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
+						cf_have_libdir=yes; break
+					fi
+				done
+			fi
+			if test "$cf_have_libdir" = no ; then
+				CF_VERBOSE(adding $cf_add_libdir to library-path)
+				ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
+			fi
+		fi
+	done
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ADD_LIBS version: 1 updated: 2010/06/02 05:03:05
+dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
 dnl -----------
-dnl Add one or more libraries, used to enforce consistency.
+dnl Add one or more libraries, used to enforce consistency.  Libraries are
+dnl prepended to an existing list, since their dependencies are assumed to
+dnl already exist in the list.
 dnl
 dnl $1 = libraries to add, with the "-l", etc.
 dnl $2 = variable to update (default $LIBS)
-AC_DEFUN([CF_ADD_LIBS],[ifelse($2,,LIBS,[$2])="$1 [$]ifelse($2,,LIBS,[$2])"])dnl
+AC_DEFUN([CF_ADD_LIBS],[
+cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
+# reverse order
+cf_add_0lib=
+for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
+# filter duplicates
+for cf_add_1lib in $cf_add_0lib; do
+	for cf_add_2lib in $cf_add_libs; do
+		if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
+			cf_add_1lib=
+			break
+		fi
+	done
+	test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
+done
+ifelse($2,,LIBS,[$2])="$cf_add_libs"
+])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
 dnl ------------------
@@ -316,13 +338,23 @@ ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]
 }
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
+dnl --------------
+dnl use this macro for appending text without introducing an extra blank at
+dnl the beginning
+define([CF_APPEND_TEXT],
+[
+	test -n "[$]$1" && $1="[$]$1 "
+	$1="[$]{$1}$2"
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
 dnl --------------
 dnl Allow user to disable a normally-on option.
 AC_DEFUN([CF_ARG_DISABLE],
 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ARG_OPTION version: 4 updated: 2010/05/26 05:38:42
+dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
 dnl -------------
 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
 dnl values.
@@ -335,25 +367,29 @@ dnl $4 = action if perform if option is default
 dnl $5 = default option value (either 'yes' or 'no')
 AC_DEFUN([CF_ARG_OPTION],
 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
-  if test "$enableval" != "$5" ; then
+	if test "$enableval" != "$5" ; then
 ifelse([$3],,[    :]dnl
 ,[    $3]) ifelse([$4],,,[
-  else
-    $4])
-  fi],[enableval=$5 ifelse([$4],,,[
-  $4
+	else
+		$4])
+	fi],[enableval=$5 ifelse([$4],,,[
+	$4
 ])dnl
-  ])])dnl
+])])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_AR_FLAGS version: 5 updated: 2010/05/20 20:24:29
+dnl CF_AR_FLAGS version: 6 updated: 2015/10/10 15:25:05
 dnl -----------
 dnl Check for suitable "ar" (archiver) options for updating an archive.
+dnl
+dnl In particular, handle some obsolete cases where the "-" might be omitted,
+dnl as well as a workaround for breakage of make's archive rules by the GNU
+dnl binutils "ar" program.
 AC_DEFUN([CF_AR_FLAGS],[
 AC_REQUIRE([CF_PROG_AR])
 
 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
 	cf_cv_ar_flags=unknown
-	for cf_ar_flags in -curv curv -crv crv -cqv cqv -rv rv
+	for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 	do
 
 		# check if $ARFLAGS already contains this choice
@@ -398,7 +434,7 @@ fi
 AC_SUBST(ARFLAGS)
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_BUILD_CC version: 7 updated: 2012/10/06 15:31:55
+dnl CF_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
 dnl -----------
 dnl If we're cross-compiling, allow the user to override the tools and their
 dnl options.  The configure script is oriented toward identifying the host
@@ -423,7 +459,7 @@ if test "$cross_compiling" = yes ; then
 	AC_ARG_WITH(build-cc,
 		[  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
 		[BUILD_CC="$withval"],
-		[AC_CHECK_PROGS(BUILD_CC, gcc cc cl)])
+		[AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
 	AC_MSG_CHECKING(for native build C compiler)
 	AC_MSG_RESULT($BUILD_CC)
 
@@ -490,33 +526,71 @@ AC_SUBST(BUILD_EXEEXT)
 AC_SUBST(BUILD_OBJEXT)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CC_ENV_FLAGS version: 1 updated: 2012/10/03 05:25:49
+dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
 dnl ---------------
 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
-dnl into CC.  This will not help with broken scripts that wrap the compiler with
-dnl options, but eliminates a more common category of user confusion.
+dnl into CC.  This will not help with broken scripts that wrap the compiler
+dnl with options, but eliminates a more common category of user confusion.
+dnl
+dnl In particular, it addresses the problem of being able to run the C
+dnl preprocessor in a consistent manner.
+dnl
+dnl Caveat: this also disallows blanks in the pathname for the compiler, but
+dnl the nuisance of having inconsistent settings for compiler and preprocessor
+dnl outweighs that limitation.
 AC_DEFUN([CF_CC_ENV_FLAGS],
 [
 # This should have been defined by AC_PROG_CC
 : ${CC:=cc}
 
+AC_MSG_CHECKING(\$CFLAGS variable)
+case "x$CFLAGS" in
+(*-[[IUD]]*)
+	AC_MSG_RESULT(broken)
+	AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
+	cf_flags="$CFLAGS"
+	CFLAGS=
+	for cf_arg in $cf_flags
+	do
+		CF_ADD_CFLAGS($cf_arg)
+	done
+	;;
+(*)
+	AC_MSG_RESULT(ok)
+	;;
+esac
+
 AC_MSG_CHECKING(\$CC variable)
-case "$CC" in #(vi
-*[[\ \	]]-[[IUD]]*)
+case "$CC" in
+(*[[\ \	]]-*)
 	AC_MSG_RESULT(broken)
-	AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
+	AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
 	# humor him...
-	cf_flags=`echo "$CC" | sed -e 's/^[[^ 	]]*[[ 	]]//'`
-	CC=`echo "$CC" | sed -e 's/[[ 	]].*//'`
-	CF_ADD_CFLAGS($cf_flags)
+	cf_prog=`echo "$CC" | sed -e 's/	/ /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
+	cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
+	CC="$cf_prog"
+	for cf_arg in $cf_flags
+	do
+		case "x$cf_arg" in
+		(x-[[IUDfgOW]]*)
+			CF_ADD_CFLAGS($cf_arg)
+			;;
+		(*)
+			CC="$CC $cf_arg"
+			;;
+		esac
+	done
+	CF_VERBOSE(resulting CC: '$CC')
+	CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
+	CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
 	;;
-*)
+(*)
 	AC_MSG_RESULT(ok)
 	;;
 esac
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_CFG_DEFAULTS version: 10 updated: 2013/09/07 13:54:05
+dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
 dnl ---------------
 dnl Determine the default configuration into which we'll install ncurses.  This
 dnl can be overridden by the user's command-line options.  There's two items to
@@ -534,10 +608,10 @@ AC_MSG_CHECKING(for prefix)
 if test "x$prefix" = "xNONE" ; then
 	case "$cf_cv_system_name" in
 		# non-vendor systems don't have a conflict
-	openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
+	(openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 		prefix=/usr
 		;;
-	*)	prefix=$ac_default_prefix
+	(*)	prefix=$ac_default_prefix
 		;;
 	esac
 fi
@@ -605,6 +679,22 @@ if test ".$system_name" != ".$cf_cv_system_name" ; then
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_CHECK_GNAT_VERSION version: 2 updated: 2019/12/31 08:53:54
+dnl ---------------------
+AC_DEFUN([CF_CHECK_GNAT_VERSION],
+[
+AC_REQUIRE([CF_GNAT_VERSION])
+case $cf_cv_gnat_version in
+(3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
+	cf_cv_prog_gnat_correct=yes
+	;;
+(*)
+	AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
+	cf_cv_prog_gnat_correct=no
+	;;
+esac
+])
+dnl ---------------------------------------------------------------------------
 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
 dnl -----------------
 dnl Check if the given compiler is really clang.  clang's C driver defines
@@ -638,7 +728,127 @@ cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
 fi
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_CURSES_HEADER version: 3 updated: 2011/05/01 19:47:45
+dnl CF_CONST_X_STRING version: 3 updated: 2020/01/11 18:39:22
+dnl -----------------
+dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
+dnl character-strings.
+dnl
+dnl It is ambiguous because the specification accommodated the pre-ANSI
+dnl compilers bundled by more than one vendor in lieu of providing a standard C
+dnl compiler other than by costly add-ons.  Because of this, the specification
+dnl did not take into account the use of const for telling the compiler that
+dnl string literals would be in readonly memory.
+dnl
+dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
+dnl let the compiler decide how to represent Xt's strings which were #define'd. 
+dnl That does not solve the problem of using the block of Xt's strings which
+dnl are compiled into the library (and is less efficient than one might want).
+dnl
+dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
+dnl when compiling the library and compiling using the library, to tell the
+dnl compiler that String is const.
+AC_DEFUN([CF_CONST_X_STRING],
+[
+AC_REQUIRE([AC_PATH_XTRA])
+
+CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
+
+AC_TRY_COMPILE(
+[
+#include <stdlib.h>
+#include <X11/Intrinsic.h>
+],
+[String foo = malloc(1)],[
+
+AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
+	AC_TRY_COMPILE(
+		[
+#define _CONST_X_STRING	/* X11R7.8 (perhaps) */
+#undef  XTSTRINGDEFINES	/* X11R5 and later */
+#include <stdlib.h>
+#include <X11/Intrinsic.h>
+		],[String foo = malloc(1); *foo = 0],[
+			cf_cv_const_x_string=no
+		],[
+			cf_cv_const_x_string=yes
+		])
+])
+
+CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
+
+case $cf_cv_const_x_string in
+(no)
+	CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
+	;;
+(*)
+	CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
+	;;
+esac
+
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CONST_X_STRING version: 3 updated: 2020/01/11 18:39:22
+dnl -----------------
+dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
+dnl character-strings.
+dnl
+dnl It is ambiguous because the specification accommodated the pre-ANSI
+dnl compilers bundled by more than one vendor in lieu of providing a standard C
+dnl compiler other than by costly add-ons.  Because of this, the specification
+dnl did not take into account the use of const for telling the compiler that
+dnl string literals would be in readonly memory.
+dnl
+dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
+dnl let the compiler decide how to represent Xt's strings which were #define'd. 
+dnl That does not solve the problem of using the block of Xt's strings which
+dnl are compiled into the library (and is less efficient than one might want).
+dnl
+dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
+dnl when compiling the library and compiling using the library, to tell the
+dnl compiler that String is const.
+AC_DEFUN([CF_CONST_X_STRING],
+[
+AC_REQUIRE([AC_PATH_XTRA])
+
+CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
+
+AC_TRY_COMPILE(
+[
+#include <stdlib.h>
+#include <X11/Intrinsic.h>
+],
+[String foo = malloc(1)],[
+
+AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
+	AC_TRY_COMPILE(
+		[
+#define _CONST_X_STRING	/* X11R7.8 (perhaps) */
+#undef  XTSTRINGDEFINES	/* X11R5 and later */
+#include <stdlib.h>
+#include <X11/Intrinsic.h>
+		],[String foo = malloc(1); *foo = 0],[
+			cf_cv_const_x_string=no
+		],[
+			cf_cv_const_x_string=yes
+		])
+])
+
+CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
+
+case $cf_cv_const_x_string in
+(no)
+	CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
+	;;
+(*)
+	CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
+	;;
+esac
+
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
 dnl ----------------
 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
 dnl variations of ncurses' installs.
@@ -647,11 +857,9 @@ dnl $1 = ncurses when looking for ncurses, or is empty
 AC_DEFUN([CF_CURSES_HEADER],[
 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
 cf_cv_ncurses_header=none
-for cf_header in ifelse($1,,,[ \
-    $1/ncurses.h \
-	$1/curses.h]) \
-	ncurses.h \
-	curses.h ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
+for cf_header in \
+	ncurses.h ifelse($1,,,[$1/ncurses.h]) \
+	curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
 do
 AC_TRY_COMPILE([#include <${cf_header}>],
 	[initscr(); tgoto("?", 0,0)],
@@ -672,7 +880,7 @@ dnl ----------
 dnl "dirname" is not portable, so we fake it with a shell script.
 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_DISABLE_ECHO version: 12 updated: 2012/10/06 16:30:28
+dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
 dnl ---------------
 dnl You can always use "make -n" to see the actual options, but it's hard to
 dnl pick out/analyze warning messages when the compile-line is long.
@@ -689,17 +897,17 @@ AC_MSG_CHECKING(if you want to see long compiling messages)
 CF_ARG_DISABLE(echo,
 	[  --disable-echo          do not display "compiling" commands],
 	[
-    ECHO_LT='--silent'
-    ECHO_LD='@echo linking [$]@;'
-    RULE_CC='@echo compiling [$]<'
-    SHOW_CC='@echo compiling [$]@'
-    ECHO_CC='@'
+	ECHO_LT='--silent'
+	ECHO_LD='@echo linking [$]@;'
+	RULE_CC='@echo compiling [$]<'
+	SHOW_CC='@echo compiling [$]@'
+	ECHO_CC='@'
 ],[
-    ECHO_LT=''
-    ECHO_LD=''
-    RULE_CC=''
-    SHOW_CC=''
-    ECHO_CC=''
+	ECHO_LT=''
+	ECHO_LD=''
+	RULE_CC=''
+	SHOW_CC=''
+	ECHO_CC=''
 ])
 AC_MSG_RESULT($enableval)
 AC_SUBST(ECHO_LT)
@@ -709,28 +917,15 @@ AC_SUBST(SHOW_CC)
 AC_SUBST(ECHO_CC)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_ENABLE_PC_FILES version: 9 updated: 2012/08/04 13:59:54
-dnl ------------------
-dnl This is the "--enable-pc-files" option, which is available if there is a
-dnl pkg-config configuration on the local machine.
-AC_DEFUN([CF_ENABLE_PC_FILES],[
-AC_REQUIRE([CF_PKG_CONFIG])
-AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
-
-if test "$PKG_CONFIG" != none ; then
-	AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
-	AC_ARG_ENABLE(pc-files,
-		[  --enable-pc-files       generate and install .pc files for pkg-config],
-		[enable_pc_files=$enableval],
-		[enable_pc_files=no])
-	AC_MSG_RESULT($enable_pc_files)
-	if test "$enable_pc_files" != no
-	then
-		CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
-	fi
-else
-	enable_pc_files=no
-fi
+dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
+dnl ------------------------
+AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
+AC_MSG_CHECKING(if we want to use GNAT projects)
+CF_ARG_DISABLE(gnat-projects,
+	[  --disable-gnat-projects test: disable GNAT projects even if usable],
+	[enable_gnat_projects=no],
+	[enable_gnat_projects=yes])
+AC_MSG_RESULT($enable_gnat_projects)
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_FIND_LIBRARY version: 9 updated: 2008/03/23 14:48:54
@@ -783,7 +978,7 @@ fi
 ])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_FIND_LINKAGE version: 19 updated: 2010/05/29 16:31:02
+dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
 dnl ---------------
 dnl Find a library (specifically the linkage used in the code fragment),
 dnl searching for it if it is not already in the library path.
@@ -831,73 +1026,74 @@ AC_TRY_LINK([$1],[$2],[
 	cf_cv_find_linkage_$3=no
 	LIBS="$cf_save_LIBS"
 
-    CF_VERBOSE(find linkage for $3 library)
-    CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
-
-    cf_save_CPPFLAGS="$CPPFLAGS"
-    cf_test_CPPFLAGS="$CPPFLAGS"
-
-    CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
-    for cf_cv_header_path_$3 in $cf_search
-    do
-      if test -d $cf_cv_header_path_$3 ; then
-        CF_VERBOSE(... testing $cf_cv_header_path_$3)
-        CPPFLAGS="$cf_save_CPPFLAGS -I$cf_cv_header_path_$3"
-        AC_TRY_COMPILE([$1],[$2],[
-            CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
-            cf_cv_find_linkage_$3=maybe
-            cf_test_CPPFLAGS="$CPPFLAGS"
-            break],[
-            CPPFLAGS="$cf_save_CPPFLAGS"
-            ])
-      fi
-    done
-
-    if test "$cf_cv_find_linkage_$3" = maybe ; then
-
-      CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
-
-      cf_save_LIBS="$LIBS"
-      cf_save_LDFLAGS="$LDFLAGS"
-
-      ifelse([$6],,,[
-        CPPFLAGS="$cf_test_CPPFLAGS"
-        LIBS="-l$3 $7 $cf_save_LIBS"
-        AC_TRY_LINK([$1],[$2],[
-            CF_VERBOSE(... found $3 library in system)
-            cf_cv_find_linkage_$3=yes])
-            CPPFLAGS="$cf_save_CPPFLAGS"
-            LIBS="$cf_save_LIBS"
-            ])
-
-      if test "$cf_cv_find_linkage_$3" != yes ; then
-        CF_LIBRARY_PATH(cf_search,$3)
-        for cf_cv_library_path_$3 in $cf_search
-        do
-          if test -d $cf_cv_library_path_$3 ; then
-            CF_VERBOSE(... testing $cf_cv_library_path_$3)
-            CPPFLAGS="$cf_test_CPPFLAGS"
-            LIBS="-l$3 $7 $cf_save_LIBS"
-            LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
-            AC_TRY_LINK([$1],[$2],[
-                CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
-                cf_cv_find_linkage_$3=yes
-                cf_cv_library_file_$3="-l$3"
-                break],[
-                CPPFLAGS="$cf_save_CPPFLAGS"
-                LIBS="$cf_save_LIBS"
-                LDFLAGS="$cf_save_LDFLAGS"
-                ])
-          fi
-        done
-        CPPFLAGS="$cf_save_CPPFLAGS"
-        LDFLAGS="$cf_save_LDFLAGS"
-      fi
-
-    else
-      cf_cv_find_linkage_$3=no
-    fi
-    ],$7)
+	CF_VERBOSE(find linkage for $3 library)
+	CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
+
+	cf_save_CPPFLAGS="$CPPFLAGS"
+	cf_test_CPPFLAGS="$CPPFLAGS"
+
+	CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
+	for cf_cv_header_path_$3 in $cf_search
+	do
+		if test -d $cf_cv_header_path_$3 ; then
+			CF_VERBOSE(... testing $cf_cv_header_path_$3)
+			CPPFLAGS="$cf_save_CPPFLAGS"
+			CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
+			AC_TRY_COMPILE([$1],[$2],[
+				CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
+				cf_cv_find_linkage_$3=maybe
+				cf_test_CPPFLAGS="$CPPFLAGS"
+				break],[
+				CPPFLAGS="$cf_save_CPPFLAGS"
+				])
+		fi
+	done
+
+	if test "$cf_cv_find_linkage_$3" = maybe ; then
+
+		CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
+
+		cf_save_LIBS="$LIBS"
+		cf_save_LDFLAGS="$LDFLAGS"
+
+		ifelse([$6],,,[
+		CPPFLAGS="$cf_test_CPPFLAGS"
+		LIBS="-l$3 $7 $cf_save_LIBS"
+		AC_TRY_LINK([$1],[$2],[
+			CF_VERBOSE(... found $3 library in system)
+			cf_cv_find_linkage_$3=yes])
+			CPPFLAGS="$cf_save_CPPFLAGS"
+			LIBS="$cf_save_LIBS"
+			])
+
+		if test "$cf_cv_find_linkage_$3" != yes ; then
+			CF_LIBRARY_PATH(cf_search,$3)
+			for cf_cv_library_path_$3 in $cf_search
+			do
+				if test -d $cf_cv_library_path_$3 ; then
+					CF_VERBOSE(... testing $cf_cv_library_path_$3)
+					CPPFLAGS="$cf_test_CPPFLAGS"
+					LIBS="-l$3 $7 $cf_save_LIBS"
+					LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
+					AC_TRY_LINK([$1],[$2],[
+					CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
+					cf_cv_find_linkage_$3=yes
+					cf_cv_library_file_$3="-l$3"
+					break],[
+					CPPFLAGS="$cf_save_CPPFLAGS"
+					LIBS="$cf_save_LIBS"
+					LDFLAGS="$cf_save_LDFLAGS"
+					])
+				fi
+			done
+			CPPFLAGS="$cf_save_CPPFLAGS"
+			LDFLAGS="$cf_save_LDFLAGS"
+		fi
+
+	else
+		cf_cv_find_linkage_$3=no
+	fi
+	],$7)
 ])
 
 LIBS="$cf_save_LIBS"
@@ -913,18 +1109,18 @@ ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_FIXUP_ADAFLAGS version: 1 updated: 2012/03/31 18:48:10
+dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
 dnl -----------------
 dnl make ADAFLAGS consistent with CFLAGS
 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
 	AC_MSG_CHECKING(optimization options for ADAFLAGS)
 	case "$CFLAGS" in
-	*-g*)
+	(*-g*)
 		CF_ADD_ADAFLAGS(-g)
 		;;
 	esac
 	case "$CFLAGS" in
-	*-O*)
+	(*-O*)
 		cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[ 	]].*//'`
 		CF_ADD_ADAFLAGS($cf_O_flag)
 		;;
@@ -932,7 +1128,7 @@ AC_DEFUN([CF_FIXUP_ADAFLAGS],[
 	AC_MSG_RESULT($ADAFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_ATTRIBUTES version: 16 updated: 2012/10/02 20:55:03
+dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
 dnl -----------------
 dnl Test for availability of useful gcc __attribute__ directives to quiet
 dnl compiler warnings.  Though useful, not all are supported -- and contrary
@@ -986,20 +1182,20 @@ EOF
 		cf_directive="__attribute__(($cf_attribute))"
 		echo "checking for $CC $cf_directive" 1>&AC_FD_CC
 
-		case $cf_attribute in #(vi
-		printf) #(vi
+		case $cf_attribute in
+		(printf)
 			cf_printf_attribute=yes
 			cat >conftest.h <<EOF
 #define GCC_$cf_ATTRIBUTE 1
 EOF
 			;;
-		scanf) #(vi
+		(scanf)
 			cf_scanf_attribute=yes
 			cat >conftest.h <<EOF
 #define GCC_$cf_ATTRIBUTE 1
 EOF
 			;;
-		*) #(vi
+		(*)
 			cat >conftest.h <<EOF
 #define GCC_$cf_ATTRIBUTE $cf_directive
 EOF
@@ -1009,11 +1205,11 @@ EOF
 		if AC_TRY_EVAL(ac_compile); then
 			test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
 			cat conftest.h >>confdefs.h
-			case $cf_attribute in #(vi
-			noreturn) #(vi
+			case $cf_attribute in
+			(noreturn)
 				AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
 				;;
-			printf) #(vi
+			(printf)
 				cf_value='/* nothing */'
 				if test "$cf_printf_attribute" != no ; then
 					cf_value='__attribute__((format(printf,fmt,var)))'
@@ -1021,7 +1217,7 @@ EOF
 				fi
 				AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
 				;;
-			scanf) #(vi
+			(scanf)
 				cf_value='/* nothing */'
 				if test "$cf_scanf_attribute" != no ; then
 					cf_value='__attribute__((format(scanf,fmt,var)))'
@@ -1029,7 +1225,7 @@ EOF
 				fi
 				AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
 				;;
-			unused) #(vi
+			(unused)
 				AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
 				;;
 			esac
@@ -1042,9 +1238,10 @@ rm -rf conftest*
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
+dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
 dnl --------------
-dnl Find version of gcc
+dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
+dnl compatible), attempt to determine if icc/clang is actually used.
 AC_DEFUN([CF_GCC_VERSION],[
 AC_REQUIRE([AC_PROG_CC])
 GCC_VERSION=none
@@ -1054,14 +1251,17 @@ if test "$GCC" = yes ; then
 	test -z "$GCC_VERSION" && GCC_VERSION=unknown
 	AC_MSG_RESULT($GCC_VERSION)
 fi
+CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
+CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GCC_WARNINGS version: 31 updated: 2013/11/19 19:23:35
+dnl CF_GCC_WARNINGS version: 37 updated: 2020/01/05 20:04:12
 dnl ---------------
 dnl Check if the compiler supports useful warning options.  There's a few that
 dnl we don't use, simply because they're too noisy:
 dnl
 dnl	-Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
+dnl	-Winline (usually not worthwhile)
 dnl	-Wredundant-decls (system headers make this too noisy)
 dnl	-Wtraditional (combines too many unrelated messages, only a few useful)
 dnl	-Wwrite-strings (too noisy, but should review occasionally).  This
@@ -1078,14 +1278,11 @@ dnl
 AC_DEFUN([CF_GCC_WARNINGS],
 [
 AC_REQUIRE([CF_GCC_VERSION])
-CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
-CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
-
+if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
 cat > conftest.$ac_ext <<EOF
 #line __oline__ "${as_me:-configure}"
 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
 EOF
-
 if test "$INTEL_COMPILER" = yes
 then
 # The "-wdXXX" options suppress warnings:
@@ -1120,8 +1317,7 @@ then
 		fi
 	done
 	CFLAGS="$cf_save_CFLAGS"
-
-elif test "$GCC" = yes
+elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
 then
 	AC_CHECKING([for $CC warning options])
 	cf_save_CFLAGS="$CFLAGS"
@@ -1143,25 +1339,22 @@ then
 		Wpointer-arith \
 		Wshadow \
 		Wstrict-prototypes \
-		Wundef $cf_gcc_warnings $cf_warn_CONST $1
+		Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
 	do
 		CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
 		if AC_TRY_EVAL(ac_compile); then
 			test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
-			case $cf_opt in #(vi
-			Wcast-qual) #(vi
-				CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
-				;;
-			Winline) #(vi
+			case $cf_opt in
+			(Winline)
 				case $GCC_VERSION in
-				[[34]].*)
+				([[34]].*)
 					CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
 					continue;;
 				esac
 				;;
-			Wpointer-arith) #(vi
+			(Wpointer-arith)
 				case $GCC_VERSION in
-				[[12]].*)
+				([[12]].*)
 					CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
 					continue;;
 				esac
@@ -1177,18 +1370,29 @@ rm -rf conftest*
 AC_SUBST(EXTRA_CFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GNAT_GENERICS version: 2 updated: 2011/03/23 20:24:41
+dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
+dnl -----------------
+AC_DEFUN([CF_GNATPREP_OPT_T],[
+AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
+cf_cv_gnatprep_opt_t=no
+gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
+])
+test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
+AC_SUBST(GNATPREP_OPTS)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_GNAT_GENERICS version: 4 updated: 2019/12/31 08:53:54
 dnl ----------------
 AC_DEFUN([CF_GNAT_GENERICS],
 [
 AC_REQUIRE([CF_GNAT_VERSION])
 
 AC_MSG_CHECKING(if GNAT supports generics)
-case $cf_gnat_version in #(vi
-3.[[1-9]]*|[[4-9]].*) #(vi
+case $cf_cv_gnat_version in
+(3.[[1-9]]*|[[4-9]].*)
 	cf_gnat_generics=yes
 	;;
-*)
+(*)
 	cf_gnat_generics=no
 	;;
 esac
@@ -1207,59 +1411,34 @@ AC_SUBST(cf_compile_generics)
 AC_SUBST(cf_generic_objects)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GNAT_PRAGMA_UNREF version: 1 updated: 2010/06/19 15:22:18
-dnl --------------------
-dnl Check if the gnat pragma "Unreferenced" works.
-AC_DEFUN([CF_GNAT_PRAGMA_UNREF],[
-AC_CACHE_CHECK(if GNAT pragma Unreferenced works,cf_cv_pragma_unreferenced,[
-CF_GNAT_TRY_LINK([procedure conftest;],
-[with Text_IO;
-with GNAT.OS_Lib;
-procedure conftest is
-   test : Integer;
-   pragma Unreferenced (test);
-begin
-   test := 1;
-   Text_IO.Put ("Hello World");
-   Text_IO.New_Line;
-   GNAT.OS_Lib.OS_Exit (0);
-end conftest;],
-	[cf_cv_pragma_unreferenced=yes],
-	[cf_cv_pragma_unreferenced=no])])
-
-# if the pragma is supported, use it (needed in the Trace code).
-if test $cf_cv_pragma_unreferenced = yes ; then
-	PRAGMA_UNREF=TRUE
-else
-	PRAGMA_UNREF=FALSE
-fi
-AC_SUBST(PRAGMA_UNREF)
-])dnl
-dnl ---------------------------------------------------------------------------
-dnl CF_GNAT_PROJECTS version: 4 updated: 2013/09/07 14:05:46
+dnl CF_GNAT_PROJECTS version: 10 updated: 2019/12/31 08:53:54
 dnl ----------------
 dnl GNAT projects are configured with ".gpr" project files.
 dnl GNAT libraries are a further development, using the project feature.
 AC_DEFUN([CF_GNAT_PROJECTS],
 [
 AC_REQUIRE([CF_GNAT_VERSION])
+AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
 
 cf_gnat_libraries=no
 cf_gnat_projects=no
 
+if test "$enable_gnat_projects" != no ; then
 AC_MSG_CHECKING(if GNAT supports project files)
-case $cf_gnat_version in #(vi
-3.[[0-9]]*) #(vi
+case $cf_cv_gnat_version in
+(3.[[0-9]]*)
 	;;
-*)
-	case $cf_cv_system_name in #(vi
-	cygwin*|msys*) #(vi
+(*)
+	case $cf_cv_system_name in
+	(cygwin*|msys*)
 		;;
-	*)
-		mkdir conftest.src conftest.bin conftest.lib
-		cd conftest.src
+	(*)
 		rm -rf conftest* *~conftest*
-		cat >>library.gpr <<CF_EOF
+		if mkdir conftest.src conftest.bin conftest.lib
+		then
+			cd conftest.src
+			rm -rf conftest* *~conftest*
+			cat >>library.gpr <<CF_EOF
 project Library is
   Kind := External ("LIB_KIND");
   for Library_Name use "ConfTest";
@@ -1270,22 +1449,14 @@ project Library is
   for Library_Dir use External("BUILD_DIR");
   Source_Dir := External ("SOURCE_DIR");
   for Source_Dirs use (Source_Dir);
-  package Compiler is
-     for Default_Switches ("Ada") use
-       ("-g",
-        "-O2",
-        "-gnatafno",
-        "-gnatVa",   -- All validity checks
-        "-gnatwa");  -- Activate all optional errors
-  end Compiler;
 end Library;
 CF_EOF
-		cat >>confpackage.ads <<CF_EOF
+			cat >>confpackage.ads <<CF_EOF
 package ConfPackage is
    procedure conftest;
 end ConfPackage;
 CF_EOF
-		cat >>confpackage.adb <<CF_EOF
+			cat >>confpackage.adb <<CF_EOF
 with Text_IO;
 package body ConfPackage is
    procedure conftest is
@@ -1295,16 +1466,17 @@ package body ConfPackage is
    end conftest;
 end ConfPackage;
 CF_EOF
-		if ( $cf_ada_make $ADAFLAGS \
-				-Plibrary.gpr \
-				-XBUILD_DIR=`cd ../conftest.bin;pwd` \
-				-XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
-				-XSOURCE_DIR=`pwd` \
-				-XSONAME=libConfTest.so.1 \
-				-XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
-			cf_gnat_projects=yes
+			if ( $cf_ada_make $ADAFLAGS \
+					-Plibrary.gpr \
+					-XBUILD_DIR=`cd ../conftest.bin;pwd` \
+					-XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
+					-XSOURCE_DIR=`pwd` \
+					-XSONAME=libConfTest.so.1 \
+					-XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
+				cf_gnat_projects=yes
+			fi
+			cd ..
 		fi
-		cd ..
 		if test -f conftest.lib/confpackage.ali
 		then
 			cf_gnat_libraries=yes
@@ -1315,6 +1487,7 @@ CF_EOF
 	;;
 esac
 AC_MSG_RESULT($cf_gnat_projects)
+fi # enable_gnat_projects
 
 if test $cf_gnat_projects = yes
 then
@@ -1448,29 +1621,23 @@ fi
 rm -rf conftest* *~conftest*
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GNAT_VERSION version: 18 updated: 2012/01/21 19:28:10
+dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
 dnl ---------------
-dnl Verify version of GNAT.
+dnl $1 = cache variable to update
+dnl $2 = program name
+dnl Verify version of GNAT or related tool
 AC_DEFUN([CF_GNAT_VERSION],
 [
-AC_MSG_CHECKING(for gnat version)
-cf_gnat_version=`${cf_ada_make:-gnatmake} -v 2>&1 | \
+AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
+cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
 	grep '[[0-9]].[[0-9]][[0-9]]*' |\
-    sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
-AC_MSG_RESULT($cf_gnat_version)
-
-case $cf_gnat_version in #(vi
-3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]]) #(vi
-	cf_cv_prog_gnat_correct=yes
-	;;
-*)
-	AC_MSG_WARN(Unsupported GNAT version $cf_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
-	cf_cv_prog_gnat_correct=no
-	;;
-esac
+	sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
 ])
+test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
+ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
+])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
+dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
 dnl -------------
 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
@@ -1478,29 +1645,110 @@ dnl (or misfeature) of glibc2, which breaks portability of many applications,
 dnl since it is interwoven with GNU extensions.
 dnl
 dnl Well, yes we could work around it...
+dnl
+dnl Parameters:
+dnl	$1 is the nominal value for _XOPEN_SOURCE
 AC_DEFUN([CF_GNU_SOURCE],
 [
-AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
+cf_gnu_xopen_source=ifelse($1,,500,$1)
+
+AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
 AC_TRY_COMPILE([#include <sys/types.h>],[
-#ifndef _XOPEN_SOURCE
-make an error
-#endif],
-	[cf_cv_gnu_source=no],
-	[cf_save="$CPPFLAGS"
-	 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
-	 AC_TRY_COMPILE([#include <sys/types.h>],[
-#ifdef _XOPEN_SOURCE
-make an error
-#endif],
-	[cf_cv_gnu_source=no],
-	[cf_cv_gnu_source=yes])
-	CPPFLAGS="$cf_save"
-	])
+	#if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
+		return 0;
+	#elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
+		return 0;
+	#else
+	#	error not GNU C library
+	#endif],
+	[cf_cv_gnu_library=yes],
+	[cf_cv_gnu_library=no])
 ])
-test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
+
+if test x$cf_cv_gnu_library = xyes; then
+
+	# With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
+	# was changed to help a little.  newlib incorporated the change about 4
+	# years later.
+	AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
+		cf_save="$CPPFLAGS"
+		CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
+		AC_TRY_COMPILE([#include <sys/types.h>],[
+			#if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
+				return 0;
+			#elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
+				return 0;
+			#else
+			#	error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
+			#endif],
+			[cf_cv_gnu_library_219=yes],
+			[cf_cv_gnu_library_219=no])
+		CPPFLAGS="$cf_save"
+	])
+
+	if test "x$cf_cv_gnu_library_219" = xyes; then
+		cf_save="$CPPFLAGS"
+		AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
+			CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
+			AC_TRY_COMPILE([
+				#include <limits.h>
+				#include <sys/types.h>
+				],[
+				#if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
+					return 0;
+				#else
+				#	error GNU C library is too old
+				#endif],
+				[cf_cv_gnu_dftsrc_219=yes],
+				[cf_cv_gnu_dftsrc_219=no])
+			])
+		test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
+	else
+		cf_cv_gnu_dftsrc_219=maybe
+	fi
+
+	if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
+
+		AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
+		AC_TRY_COMPILE([#include <sys/types.h>],[
+			#ifndef _XOPEN_SOURCE
+			#error	expected _XOPEN_SOURCE to be defined
+			#endif],
+			[cf_cv_gnu_source=no],
+			[cf_save="$CPPFLAGS"
+			 CF_ADD_CFLAGS(-D_GNU_SOURCE)
+			 AC_TRY_COMPILE([#include <sys/types.h>],[
+				#ifdef _XOPEN_SOURCE
+				#error	expected _XOPEN_SOURCE to be undefined
+				#endif],
+				[cf_cv_gnu_source=no],
+				[cf_cv_gnu_source=yes])
+			CPPFLAGS="$cf_save"
+			])
+		])
+
+		if test "$cf_cv_gnu_source" = yes
+		then
+		AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
+			CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
+			AC_TRY_COMPILE([#include <sys/types.h>],[
+				#ifdef _DEFAULT_SOURCE
+				#error	expected _DEFAULT_SOURCE to be undefined
+				#endif],
+				[cf_cv_default_source=no],
+				[cf_cv_default_source=yes])
+			])
+			if test "$cf_cv_default_source" = yes
+			then
+				CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
+			fi
+		fi
+	fi
+
+fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_HEADER_PATH version: 12 updated: 2010/05/05 05:22:40
+dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
 dnl --------------
 dnl Construct a search-list of directories for a nonstandard header-file
 dnl
@@ -1516,8 +1764,8 @@ cf_header_path_list=""
 if test -n "${CFLAGS}${CPPFLAGS}" ; then
 	for cf_header_path in $CPPFLAGS $CFLAGS
 	do
-		case $cf_header_path in #(vi
-		-I*)
+		case $cf_header_path in
+		(-I*)
 			cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
 			CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
 			cf_header_path_list="$cf_header_path_list [$]$1"
@@ -1546,40 +1794,126 @@ test -d "$oldincludedir" && {
 $1="[$]$1 $cf_header_path_list"
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
+dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
 dnl ---------------
 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
 AC_DEFUN([CF_HELP_MESSAGE],
-[AC_DIVERT_HELP([$1])dnl
+[CF_ACVERSION_CHECK(2.53,[],[
+AC_DIVERT_HELP($1)])dnl
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_INCLUDE_DIRS version: 8 updated: 2013/10/12 16:45:09
+dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
 dnl ---------------
 dnl Construct the list of include-options according to whether we're building
-dnl in the source directory or using '--srcdir=DIR' option.  If we're building
-dnl with gcc, don't append the includedir if it happens to be /usr/include,
-dnl since that usually breaks gcc's shadow-includes.
+dnl in the source directory or using '--srcdir=DIR' option.
 AC_DEFUN([CF_INCLUDE_DIRS],
 [
-if test "$GCC" != yes; then
-	CPPFLAGS="-I\${includedir} $CPPFLAGS"
-elif test "$includedir" != "/usr/include"; then
-	if test "$includedir" = '${prefix}/include' ; then
-		if test x$prefix != x/usr ; then
-			CPPFLAGS="-I\${includedir} $CPPFLAGS"
-		fi
-	else
-		CPPFLAGS="-I\${includedir} $CPPFLAGS"
-	fi
-fi
 if test "$srcdir" != "."; then
 	CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
 fi
-CPPFLAGS="-I. -I../include $CPPFLAGS"
+CPPFLAGS="-I../include $CPPFLAGS"
+if test "$srcdir" != "."; then
+	CPPFLAGS="-I\${srcdir} $CPPFLAGS"
+fi
+CPPFLAGS="-I. $CPPFLAGS"
 AC_SUBST(CPPFLAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_INTEL_COMPILER version: 5 updated: 2013/02/10 10:41:05
+dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
+dnl ---------------
+dnl prompt for/fill-in useful install-program options
+AC_DEFUN([CF_INSTALL_OPTS],
+[
+CF_INSTALL_OPT_S
+CF_INSTALL_OPT_P
+CF_INSTALL_OPT_O
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
+dnl ----------------
+dnl Almost all "install" programs default to the current user's ownership.
+dnl Almost - MINIX is an exception.
+AC_DEFUN([CF_INSTALL_OPT_O],
+[
+AC_MSG_CHECKING(if install needs to be told about ownership)
+case `$ac_config_guess` in
+(*minix)
+	with_install_o=yes
+	;;
+(*)
+	with_install_o=no
+	;;
+esac
+
+AC_MSG_RESULT($with_install_o)
+if test "x$with_install_o" = xyes
+then
+	INSTALL_OPT_O=`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`
+else
+	INSTALL_OPT_O=
+fi
+
+AC_SUBST(INSTALL_OPT_O)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
+dnl ----------------
+dnl Some install-programs accept a "-p" option to preserve file modification
+dnl timestamps.  That can be useful as an install option, as well as a way to
+dnl avoid the need for ranlib after copying a static archive.
+AC_DEFUN([CF_INSTALL_OPT_P],
+[
+: ${INSTALL:=install}
+AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
+	rm -rf conftest*
+	date >conftest.in
+	mkdir conftest.out
+	sleep 3
+	if $INSTALL -p conftest.in conftest.out 2>/dev/null
+	then
+		if test -f conftest.out/conftest.in
+		then
+			test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
+			test conftest.out/conftest.in -nt conftest.in 2>conftest.err
+			if test -s conftest.err
+			then
+				cf_cv_install_p=no
+			else
+				cf_cv_install_p=yes
+			fi
+		else
+			cf_cv_install_p=no
+		fi
+	else
+		cf_cv_install_p=no
+	fi
+	rm -rf conftest*
+])
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
+dnl ----------------
+dnl By default, we should strip executables which are installed, but leave the
+dnl ability to suppress that for unit-testing.
+AC_DEFUN([CF_INSTALL_OPT_S],
+[
+AC_MSG_CHECKING(if you want to install stripped executables)
+CF_ARG_DISABLE(stripping,
+	[  --disable-stripping     do not strip (debug info) installed executables],
+	[with_stripping=no],
+	[with_stripping=yes])
+AC_MSG_RESULT($with_stripping)
+
+if test "$with_stripping" = yes
+then
+	INSTALL_OPT_S="-s"
+else
+	INSTALL_OPT_S=
+fi
+AC_SUBST(INSTALL_OPT_S)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
 dnl -----------------
 dnl Check if the given compiler is really the Intel compiler for Linux.  It
 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
@@ -1598,7 +1932,7 @@ ifelse([$2],,INTEL_COMPILER,[$2])=no
 
 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
 	case $host_os in
-	linux*|gnu*)
+	(linux*|gnu*)
 		AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
 		cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
 		ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
@@ -1608,7 +1942,7 @@ if test "$ifelse([$1],,[$1],GCC)" = yes ; then
 make an error
 #endif
 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
-cf_save_CFLAGS="$cf_save_CFLAGS -we147 -no-gcc"
+cf_save_CFLAGS="$cf_save_CFLAGS -we147"
 ],[])
 		ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
 		AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
@@ -1617,13 +1951,13 @@ cf_save_CFLAGS="$cf_save_CFLAGS -we147 -no-gcc"
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LARGEFILE version: 8 updated: 2012/10/06 08:57:51
+dnl CF_LARGEFILE version: 11 updated: 2018/06/20 20:23:13
 dnl ------------
 dnl Add checks for large file support.
 AC_DEFUN([CF_LARGEFILE],[
 ifdef([AC_FUNC_FSEEKO],[
-    AC_SYS_LARGEFILE
-    if test "$enable_largefile" != no ; then
+	AC_SYS_LARGEFILE
+	if test "$enable_largefile" != no ; then
 	AC_FUNC_FSEEKO
 
 	# Normally we would collect these definitions in the config.h,
@@ -1633,12 +1967,22 @@ ifdef([AC_FUNC_FSEEKO],[
 	# header files by themselves before looking at the body files it is
 	# told to compile.  For ncurses, those header files do not include
 	# the config.h
-	test "$ac_cv_sys_large_files"      != no && CPPFLAGS="$CPPFLAGS -D_LARGE_FILES "
-	test "$ac_cv_sys_largefile_source" != no && CPPFLAGS="$CPPFLAGS -D_LARGEFILE_SOURCE "
-	test "$ac_cv_sys_file_offset_bits" != no && CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits "
+	if test "$ac_cv_sys_large_files" != no
+	then
+		CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
+	fi
+	if test "$ac_cv_sys_largefile_source" != no
+	then
+		CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
+	fi
+	if test "$ac_cv_sys_file_offset_bits" != no
+	then
+		CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
+	fi
 
 	AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
 		AC_TRY_COMPILE([
+#pragma GCC diagnostic error "-Wincompatible-pointer-types"
 #include <sys/types.h>
 #include <dirent.h>
 		],[
@@ -1652,11 +1996,11 @@ ifdef([AC_FUNC_FSEEKO],[
 		[cf_cv_struct_dirent64=no])
 	])
 	test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
-    fi
+	fi
 ])
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_LD_RPATH_OPT version: 5 updated: 2011/07/17 14:48:41
+dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
 dnl ---------------
 dnl For the given system and compiler, find the compiler flags to pass to the
 dnl loader to use the "rpath" feature.
@@ -1665,52 +2009,55 @@ AC_DEFUN([CF_LD_RPATH_OPT],
 AC_REQUIRE([CF_CHECK_CACHE])
 
 LD_RPATH_OPT=
-AC_MSG_CHECKING(for an rpath option)
-case $cf_cv_system_name in #(vi
-irix*) #(vi
-	if test "$GCC" = yes; then
+if test "x$cf_cv_enable_rpath" != xno
+then
+	AC_MSG_CHECKING(for an rpath option)
+	case $cf_cv_system_name in
+	(irix*)
+		if test "$GCC" = yes; then
+			LD_RPATH_OPT="-Wl,-rpath,"
+		else
+			LD_RPATH_OPT="-rpath "
+		fi
+		;;
+	(linux*|gnu*|k*bsd*-gnu|freebsd*)
 		LD_RPATH_OPT="-Wl,-rpath,"
-	else
+		;;
+	(openbsd[[2-9]].*|mirbsd*)
+		LD_RPATH_OPT="-Wl,-rpath,"
+		;;
+	(dragonfly*)
 		LD_RPATH_OPT="-rpath "
-	fi
-	;;
-linux*|gnu*|k*bsd*-gnu) #(vi
-	LD_RPATH_OPT="-Wl,-rpath,"
-	;;
-openbsd[[2-9]].*|mirbsd*) #(vi
-	LD_RPATH_OPT="-Wl,-rpath,"
-	;;
-dragonfly*|freebsd*) #(vi
-	LD_RPATH_OPT="-rpath "
-	;;
-netbsd*) #(vi
-	LD_RPATH_OPT="-Wl,-rpath,"
-	;;
-osf*|mls+*) #(vi
-	LD_RPATH_OPT="-rpath "
-	;;
-solaris2*) #(vi
-	LD_RPATH_OPT="-R"
-	;;
-*)
-	;;
-esac
-AC_MSG_RESULT($LD_RPATH_OPT)
+		;;
+	(netbsd*)
+		LD_RPATH_OPT="-Wl,-rpath,"
+		;;
+	(osf*|mls+*)
+		LD_RPATH_OPT="-rpath "
+		;;
+	(solaris2*)
+		LD_RPATH_OPT="-R"
+		;;
+	(*)
+		;;
+	esac
+	AC_MSG_RESULT($LD_RPATH_OPT)
 
-case "x$LD_RPATH_OPT" in #(vi
-x-R*)
-	AC_MSG_CHECKING(if we need a space after rpath option)
-	cf_save_LIBS="$LIBS"
-	CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
-	AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
-	LIBS="$cf_save_LIBS"
-	AC_MSG_RESULT($cf_rpath_space)
-	test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
-	;;
-esac
+	case "x$LD_RPATH_OPT" in
+	(x-R*)
+		AC_MSG_CHECKING(if we need a space after rpath option)
+		cf_save_LIBS="$LIBS"
+		CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
+		AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
+		LIBS="$cf_save_LIBS"
+		AC_MSG_RESULT($cf_rpath_space)
+		test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
+		;;
+	esac
+fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIBRARY_PATH version: 9 updated: 2010/03/28 12:52:50
+dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
 dnl ---------------
 dnl Construct a search-list of directories for a nonstandard library-file
 dnl
@@ -1724,8 +2071,8 @@ cf_library_path_list=""
 if test -n "${LDFLAGS}${LIBS}" ; then
 	for cf_library_path in $LDFLAGS $LIBS
 	do
-		case $cf_library_path in #(vi
-		-L*)
+		case $cf_library_path in
+		(-L*)
 			cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
 			CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
 			cf_library_path_list="$cf_library_path_list [$]$1"
@@ -1739,24 +2086,28 @@ CF_SUBDIR_PATH($1,$2,lib)
 $1="$cf_library_path_list [$]$1"
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_PREFIX version: 9 updated: 2012/01/21 19:28:10
+dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
 dnl -------------
 dnl Compute the library-prefix for the given host system
 dnl $1 = variable to set
 define([CF_LIB_PREFIX],
 [
-	case $cf_cv_system_name in #(vi
-	OS/2*|os2*) #(vi
-        LIB_PREFIX=''
-        ;;
-	*)	LIB_PREFIX='lib'
-        ;;
+	case $cf_cv_system_name in
+	(OS/2*|os2*)
+		if test "$DFT_LWR_MODEL" = libtool; then
+			LIB_PREFIX='lib'
+		else
+			LIB_PREFIX=''
+		fi
+		;;
+	(*)	LIB_PREFIX='lib'
+		;;
 	esac
 ifelse($1,,,[$1=$LIB_PREFIX])
 	AC_SUBST(LIB_PREFIX)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_SUFFIX version: 22 updated: 2013/09/07 13:54:05
+dnl CF_LIB_SUFFIX version: 25 updated: 2015/04/17 21:13:04
 dnl -------------
 dnl Compute the library file-suffix from the given model name
 dnl $1 = model name
@@ -1765,61 +2116,64 @@ dnl $3 = dependency variable to set (actual filename)
 dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
 AC_DEFUN([CF_LIB_SUFFIX],
 [
-	case X$1 in #(vi
-	Xlibtool) #(vi
+	case X$1 in
+	(Xlibtool)
 		$2='.la'
 		$3=[$]$2
 		;;
-	Xdebug) #(vi
+	(Xdebug)
 		$2='_g.a'
 		$3=[$]$2
 		;;
-	Xprofile) #(vi
+	(Xprofile)
 		$2='_p.a'
 		$3=[$]$2
 		;;
-	Xshared) #(vi
+	(Xshared)
 		case $cf_cv_system_name in
-		aix[[5-7]]*) #(vi
-			$2='.a'
+		(aix[[5-7]]*)
+			$2='.so'
 			$3=[$]$2
 			;;
-		cygwin*|msys*|mingw*) #(vi
+		(cygwin*|msys*|mingw*)
 			$2='.dll'
 			$3='.dll.a'
 			;;
-		darwin*) #(vi
+		(darwin*)
 			$2='.dylib'
 			$3=[$]$2
 			;;
-		hpux*) #(vi
+		(hpux*)
 			case $target in
-			ia64*) #(vi
+			(ia64*)
 				$2='.so'
 				$3=[$]$2
 				;;
-			*) #(vi
+			(*)
 				$2='.sl'
 				$3=[$]$2
 				;;
 			esac
 			;;
-		*) #(vi
+		(*)
 			$2='.so'
 			$3=[$]$2
 			;;
 		esac
 		;;
-	*)
+	(*)
 		$2='.a'
 		$3=[$]$2
 		;;
 	esac
-	test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
-	test -n "$LIB_SUFFIX" && $3="${LIB_SUFFIX}[$]{$3}"
+	if test -n "${LIB_SUFFIX}${EXTRA_SUFFIX}"
+	then
+		$2="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$2}"
+		$3="${LIB_SUFFIX}${EXTRA_SUFFIX}[$]{$3}"
+	fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LIB_TYPE version: 4 updated: 2000/10/20 22:57:49
+dnl CF_LIB_TYPE version: 5 updated: 2015/04/17 21:13:04
 dnl -----------
 dnl Compute the string to append to -library from the given model name
 dnl $1 = model name
@@ -1828,16 +2182,16 @@ dnl The variable $LIB_SUFFIX, if set, prepends the variable to set.
 AC_DEFUN([CF_LIB_TYPE],
 [
 	case $1 in
-	libtool) $2=''   ;;
-	normal)  $2=''   ;;
-	debug)   $2='_g' ;;
-	profile) $2='_p' ;;
-	shared)  $2=''   ;;
+	(libtool) $2=''   ;;
+	(normal)  $2=''   ;;
+	(debug)   $2='_g' ;;
+	(profile) $2='_p' ;;
+	(shared)  $2=''   ;;
 	esac
 	test -n "$LIB_SUFFIX" && $2="${LIB_SUFFIX}[$]{$2}"
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_LINK_DATAONLY version: 10 updated: 2012/10/06 17:41:51
+dnl CF_LINK_DATAONLY version: 12 updated: 2017/07/23 17:46:07
 dnl ----------------
 dnl Some systems have a non-ANSI linker that doesn't pull in modules that have
 dnl only data (i.e., no functions), for example NeXT.  On those systems we'll
@@ -1859,7 +2213,7 @@ EOF
 	rm -f conftest.$ac_ext data.o
 	cat >conftest.$ac_ext <<EOF
 #line __oline__ "configure"
-int	testfunc()
+int	testfunc(void)
 {
 #if defined(NeXT)
 	${cf_cv_main_return:-return}(1);	/* I'm told this linker is broken */
@@ -1880,7 +2234,7 @@ EOF
 	cf_saveLIBS="$LIBS"
 	LIBS="conftest.a $LIBS"
 	AC_TRY_RUN([
-	int main()
+	int main(void)
 	{
 		extern int testfunc();
 		${cf_cv_main_return:-return} (!testfunc());
@@ -1900,7 +2254,7 @@ fi
 
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_MAKEFLAGS version: 14 updated: 2011/03/31 19:29:46
+dnl CF_MAKEFLAGS version: 18 updated: 2018/02/21 21:26:03
 dnl ------------
 dnl Some 'make' programs support ${MAKEFLAGS}, some ${MFLAGS}, to pass 'make'
 dnl options to lower-levels.  It's very useful for "make -n" -- if we have it.
@@ -1913,24 +2267,26 @@ AC_CACHE_CHECK(for makeflags variable, cf_cv_makeflags,[
 	for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
 	do
 		cat >cf_makeflags.tmp <<CF_EOF
-SHELL = /bin/sh
+SHELL = $SHELL
 all :
 	@ echo '.$cf_option'
 CF_EOF
 		cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[[ 	]]*$,,'`
 		case "$cf_result" in
-		.*k)
+		(.*k|.*kw)
 			cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
 			case "$cf_result" in
-			.*CC=*)	cf_cv_makeflags=
+			(.*CC=*)	cf_cv_makeflags=
 				;;
-			*)	cf_cv_makeflags=$cf_option
+			(*)	cf_cv_makeflags=$cf_option
 				;;
 			esac
 			break
 			;;
-		.-)	;;
-		*)	echo "given option \"$cf_option\", no match \"$cf_result\""
+		(.-)
+			;;
+		(*)
+			CF_MSG_LOG(given option \"$cf_option\", no match \"$cf_result\")
 			;;
 		esac
 	done
@@ -1977,7 +2333,7 @@ AC_SUBST(MAKE_UPPER_TAGS)
 AC_SUBST(MAKE_LOWER_TAGS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_MIXEDCASE_FILENAMES version: 6 updated: 2013/10/08 17:47:05
+dnl CF_MIXEDCASE_FILENAMES version: 7 updated: 2015/04/12 15:39:00
 dnl ----------------------
 dnl Check if the file-system supports mixed-case filenames.  If we're able to
 dnl create a lowercase name and see it as uppercase, it doesn't support that.
@@ -1985,11 +2341,11 @@ AC_DEFUN([CF_MIXEDCASE_FILENAMES],
 [
 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
 if test "$cross_compiling" = yes ; then
-	case $target_alias in #(vi
-	*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*) #(vi
+	case $target_alias in
+	(*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
 		cf_cv_mixedcase=no
 		;;
-	*)
+	(*)
 		cf_cv_mixedcase=yes
 		;;
 	esac
@@ -2007,20 +2363,26 @@ fi
 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_MKSTEMP version: 9 updated: 2012/10/03 04:34:49
+dnl CF_MKSTEMP version: 10 updated: 2017/01/21 11:12:16
 dnl ----------
 dnl Check for a working mkstemp.  This creates two files, checks that they are
 dnl successfully created and distinct (AmigaOS apparently fails on the last).
 AC_DEFUN([CF_MKSTEMP],[
+AC_CHECK_HEADERS( \
+unistd.h \
+)
 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
 rm -rf conftest*
 AC_TRY_RUN([
 #include <sys/types.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include <sys/stat.h>
-int main()
+int main(void)
 {
 	char *tmpl = "conftestXXXXXX";
 	char name[2][80];
@@ -2067,10 +2429,11 @@ AC_DEFUN([CF_MSG_LOG],[
 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_ADDON version: 4 updated: 2011/03/27 17:10:13
+dnl CF_NCURSES_ADDON version: 5 updated: 2015/04/26 18:06:58
 dnl ----------------
 dnl Configure an ncurses add-on, built outside the ncurses tree.
 AC_DEFUN([CF_NCURSES_ADDON],[
+AC_REQUIRE([CF_NCURSES_CONFIG])
 
 AC_PROVIDE([CF_SUBST_NCURSES_VERSION])
 
@@ -2081,42 +2444,55 @@ AC_ARG_ENABLE(widec,
 	[with_widec=no])
 AC_MSG_RESULT($with_widec)
 if test "$with_widec" = yes ; then
-	CF_UTF8_LIB 
+	CF_UTF8_LIB
 	CF_NCURSES_CONFIG(ncursesw)
 else
 	CF_NCURSES_CONFIG(ncurses)
 fi
 
-if test "$NCURSES_CONFIG" != none ; then
+if test "$NCURSES_CONFIG_PKG" != none ; then
+	cf_version=`$PKG_CONFIG --modversion $NCURSES_CONFIG_PKG 2>/dev/null`
 
-cf_version=`$NCURSES_CONFIG --version`
+	NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
+	NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
+	NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
 
-NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
-NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
-NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
+	cf_cv_abi_version=`$PKG_CONFIG --variable=abi_version $NCURSES_CONFIG_PKG 2>/dev/null`
+	if test -z "$cf_cv_abi_version"
+	then
+		cf_cv_abi_version=`$PKG_CONFIG --variable=major_version $NCURSES_CONFIG_PKG 2>/dev/null`
+	fi
 
-# ABI version is not available from headers
-cf_cv_abi_version=`$NCURSES_CONFIG --abi-version`
+elif test "$NCURSES_CONFIG" != none ; then
+
+	cf_version=`$NCURSES_CONFIG --version 2>/dev/null`
+
+	NCURSES_MAJOR=`echo "$cf_version" | sed -e 's/\..*//'`
+	NCURSES_MINOR=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.//' -e 's/\..*//'`
+	NCURSES_PATCH=`echo "$cf_version" | sed -e 's/^[[0-9]][[0-9]]*\.[[0-9]][[0-9]]*\.//'`
+
+	# ABI version is not available from headers
+	cf_cv_abi_version=`$NCURSES_CONFIG --abi-version 2>/dev/null`
 
 else
 
-for cf_name in MAJOR MINOR PATCH
-do
-cat >conftest.$ac_ext <<CF_EOF
-#include <${cf_cv_ncurses_header:-curses.h}>
-AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
+	for cf_name in MAJOR MINOR PATCH
+	do
+	cat >conftest.$ac_ext <<CF_EOF
+	#include <${cf_cv_ncurses_header:-curses.h}>
+	AUTOCONF_$cf_name NCURSES_VERSION_$cf_name
 CF_EOF
-	cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
-	AC_TRY_EVAL(cf_try)
-	if test -f conftest.out ; then
-		cf_result=`cat conftest.out | sed -e "s/^.*AUTOCONF_$cf_name[[ 	]][[ 	]]*//"`
-		eval NCURSES_$cf_name=\"$cf_result\"
-		# cat conftest.$ac_ext
-		# cat conftest.out
-	fi
-done
+		cf_try="$ac_cpp conftest.$ac_ext 2>&5 | fgrep AUTOCONF_$cf_name >conftest.out"
+		AC_TRY_EVAL(cf_try)
+		if test -f conftest.out ; then
+			cf_result=`cat conftest.out | sed -e "s/^.*AUTOCONF_$cf_name[[ 	]][[ 	]]*//"`
+			eval NCURSES_$cf_name=\"$cf_result\"
+			# cat conftest.$ac_ext
+			# cat conftest.out
+		fi
+	done
 
-cf_cv_abi_version=${NCURSES_MAJOR}
+	cf_cv_abi_version=${NCURSES_MAJOR}
 
 fi
 
@@ -2176,46 +2552,97 @@ printf("old\n");
 	,[$1=no])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_CONFIG version: 10 updated: 2012/10/06 08:57:51
+dnl CF_NCURSES_CONFIG version: 21 updated: 2018/06/20 20:23:13
 dnl -----------------
-dnl Tie together the configure-script macros for ncurses.
-dnl Prefer the "-config" script from ncurses 6.x, to simplify analysis.
-dnl Allow that to be overridden using the $NCURSES_CONFIG environment variable.
+dnl Tie together the configure-script macros for ncurses, preferring these in
+dnl order:
+dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
+dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
+dnl c) just plain libraries
 dnl
 dnl $1 is the root library name (default: "ncurses")
-AC_DEFUN([CF_NCURSES_CONFIG],
-[
+AC_DEFUN([CF_NCURSES_CONFIG],[
+AC_REQUIRE([CF_PKG_CONFIG])
 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
+cf_have_ncuconfig=no
 
-echo "Looking for ${cf_ncuconfig_root}-config"
+if test "x${PKG_CONFIG:=none}" != xnone; then
+	AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
+	if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
+		AC_MSG_RESULT(yes)
 
-CF_ACVERSION_CHECK(2.52,
-	[AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
-	[AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
+		AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
+		cf_have_ncuconfig=unknown
 
-if test "$NCURSES_CONFIG" != none ; then
+		cf_save_CPPFLAGS="$CPPFLAGS"
+		cf_save_LIBS="$LIBS"
+
+		CF_ADD_CFLAGS(`$PKG_CONFIG --cflags $cf_ncuconfig_root`)
+		CF_ADD_LIBS(`$PKG_CONFIG --libs $cf_ncuconfig_root`)
+
+		AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
+			[initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);],
+			[AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
+				int main(void)
+				{ char *xx = curses_version(); return (xx == 0); }],
+				[cf_have_ncuconfig=yes],
+				[cf_have_ncuconfig=no],
+				[cf_have_ncuconfig=maybe])],
+			[cf_have_ncuconfig=no])
+		AC_MSG_RESULT($cf_have_ncuconfig)
+		test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
+		if test "$cf_have_ncuconfig" != "yes"
+		then
+			CPPFLAGS="$cf_save_CPPFLAGS"
+			LIBS="$cf_save_LIBS"
+			NCURSES_CONFIG_PKG=none
+		else
+			AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
+			NCURSES_CONFIG_PKG=$cf_ncuconfig_root
+			CF_TERM_HEADER
+		fi
+
+	else
+		AC_MSG_RESULT(no)
+		NCURSES_CONFIG_PKG=none
+	fi
+else
+	NCURSES_CONFIG_PKG=none
+fi
 
-CPPFLAGS="$CPPFLAGS `$NCURSES_CONFIG --cflags`"
-CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
+if test "x$cf_have_ncuconfig" = "xno"; then
+	cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
 
-# even with config script, some packages use no-override for curses.h
-CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
+	CF_ACVERSION_CHECK(2.52,
+		[AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
+		[AC_PATH_PROGS(NCURSES_CONFIG,  ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
 
-dnl like CF_NCURSES_CPPFLAGS
-AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
+	if test "$NCURSES_CONFIG" != none ; then
 
-dnl like CF_NCURSES_LIBS
-CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
-AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
+		CF_ADD_CFLAGS(`$NCURSES_CONFIG --cflags`)
+		CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
 
-dnl like CF_NCURSES_VERSION
-cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
+		# even with config script, some packages use no-override for curses.h
+		CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
 
-else
+		dnl like CF_NCURSES_CPPFLAGS
+		AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
 
-CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
-CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
+		dnl like CF_NCURSES_LIBS
+		CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
+		AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
 
+		dnl like CF_NCURSES_VERSION
+		cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
+
+	else
+
+		CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
+		CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
+
+	fi
+else
+	NCURSES_CONFIG=none
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
@@ -2270,7 +2697,7 @@ AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
 CF_NCURSES_VERSION
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_HEADER version: 3 updated: 2012/10/06 08:57:51
+dnl CF_NCURSES_HEADER version: 4 updated: 2015/04/15 19:08:48
 dnl -----------------
 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
 dnl variations of ncurses' installs.
@@ -2319,24 +2746,24 @@ fi
 
 # Set definitions to allow ifdef'ing for ncurses.h
 
-case $cf_cv_ncurses_header in # (vi
-*ncurses.h)
+case $cf_cv_ncurses_header in
+(*ncurses.h)
 	AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
 	;;
 esac
 
-case $cf_cv_ncurses_header in # (vi
-ncurses/curses.h|ncurses/ncurses.h)
+case $cf_cv_ncurses_header in
+(ncurses/curses.h|ncurses/ncurses.h)
 	AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
 	;;
-ncursesw/curses.h|ncursesw/ncurses.h)
+(ncursesw/curses.h|ncursesw/ncurses.h)
 	AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
 	;;
 esac
 
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_LIBS version: 16 updated: 2010/11/20 17:02:38
+dnl CF_NCURSES_LIBS version: 17 updated: 2015/04/15 19:08:48
 dnl ---------------
 dnl Look for the ncurses library.  This is a little complicated on Linux,
 dnl because it may be linked with the gpm (general purpose mouse) library.
@@ -2362,8 +2789,8 @@ AC_CHECK_LIB(gpm,Gpm_Open,
 		[LIBS="$cf_ncurses_SAVE"],
 		[cf_ncurses_LIBS="-lgpm"])])
 
-case $host_os in #(vi
-freebsd*)
+case $host_os in
+(freebsd*)
 	# This is only necessary if you are linking against an obsolete
 	# version of ncurses (but it should do no harm, since it's static).
 	if test "$cf_nculib_root" = ncurses ; then
@@ -2404,7 +2831,7 @@ CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_NCURSES_VERSION version: 14 updated: 2012/10/06 08:57:51
+dnl CF_NCURSES_VERSION version: 15 updated: 2017/05/09 19:26:10
 dnl ------------------
 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS.  We don't use
@@ -2419,7 +2846,7 @@ AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
 	AC_TRY_RUN([
 #include <${cf_cv_ncurses_header:-curses.h}>
 #include <stdio.h>
-int main()
+int main(void)
 {
 	FILE *fp = fopen("$cf_tempfile", "w");
 #ifdef NCURSES_VERSION
@@ -2466,27 +2893,27 @@ EOF
 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_OBJ_SUBDIR version: 6 updated: 2013/09/07 14:06:10
+dnl CF_OBJ_SUBDIR version: 7 updated: 2015/04/17 21:13:04
 dnl -------------
 dnl Compute the object-directory name from the given model name
 AC_DEFUN([CF_OBJ_SUBDIR],
 [
 	case $1 in
-	libtool) $2='obj_lo'  ;;
-	normal)  $2='objects' ;;
-	debug)   $2='obj_g' ;;
-	profile) $2='obj_p' ;;
-	shared)
-		case $cf_cv_system_name in #(vi
-		cygwin|msys) #(vi
+	(libtool) $2='obj_lo'  ;;
+	(normal)  $2='objects' ;;
+	(debug)   $2='obj_g' ;;
+	(profile) $2='obj_p' ;;
+	(shared)
+		case $cf_cv_system_name in
+		(cygwin|msys)
 			$2='objects' ;;
-		*)
+		(*)
 			$2='obj_s' ;;
 		esac
 	esac
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PATHSEP version: 6 updated: 2012/09/29 18:38:12
+dnl CF_PATHSEP version: 7 updated: 2015/04/12 15:39:00
 dnl ----------
 dnl Provide a value for the $PATH and similar separator (or amend the value
 dnl as provided in autoconf 2.5x).
@@ -2494,15 +2921,15 @@ AC_DEFUN([CF_PATHSEP],
 [
 	AC_MSG_CHECKING(for PATH separator)
 	case $cf_cv_system_name in
-	os2*)	PATH_SEPARATOR=';'  ;;
-	*)	${PATH_SEPARATOR:=':'}  ;;
+	(os2*)	PATH_SEPARATOR=';'  ;;
+	(*)	${PATH_SEPARATOR:=':'}  ;;
 	esac
 ifelse([$1],,,[$1=$PATH_SEPARATOR])
 	AC_SUBST(PATH_SEPARATOR)
 	AC_MSG_RESULT($PATH_SEPARATOR)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PATH_SYNTAX version: 14 updated: 2012/06/19 20:58:54
+dnl CF_PATH_SYNTAX version: 16 updated: 2015/04/18 08:56:57
 dnl --------------
 dnl Check the argument to see that it looks like a pathname.  Rewrite it if it
 dnl begins with one of the prefix/exec_prefix variables, and then again if the
@@ -2510,36 +2937,36 @@ dnl result begins with 'NONE'.  This is necessary to work around autoconf's
 dnl delayed evaluation of those symbols.
 AC_DEFUN([CF_PATH_SYNTAX],[
 if test "x$prefix" != xNONE; then
-  cf_path_syntax="$prefix"
+	cf_path_syntax="$prefix"
 else
-  cf_path_syntax="$ac_default_prefix"
-fi
-
-case ".[$]$1" in #(vi
-.\[$]\(*\)*|.\'*\'*) #(vi
-  ;;
-..|./*|.\\*) #(vi
-  ;;
-.[[a-zA-Z]]:[[\\/]]*) #(vi OS/2 EMX
-  ;;
-.\[$]{*prefix}*|.\[$]{*dir}*) #(vi
-  eval $1="[$]$1"
-  case ".[$]$1" in #(vi
-  .NONE/*)
-    $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
-    ;;
-  esac
-  ;; #(vi
-.no|.NONE/*)
-  $1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
-  ;;
-*)
-  ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
-  ;;
+	cf_path_syntax="$ac_default_prefix"
+fi
+
+case ".[$]$1" in
+(.\[$]\(*\)*|.\'*\'*)
+	;;
+(..|./*|.\\*)
+	;;
+(.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
+	;;
+(.\[$]{*prefix}*|.\[$]{*dir}*)
+	eval $1="[$]$1"
+	case ".[$]$1" in
+	(.NONE/*)
+		$1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
+		;;
+	esac
+	;;
+(.no|.NONE/*)
+	$1=`echo [$]$1 | sed -e s%NONE%$cf_path_syntax%`
+	;;
+(*)
+	ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
+	;;
 esac
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PKG_CONFIG version: 7 updated: 2011/04/29 04:53:22
+dnl CF_PKG_CONFIG version: 10 updated: 2015/04/26 18:06:58
 dnl -------------
 dnl Check for the package-config program, unless disabled by command-line.
 AC_DEFUN([CF_PKG_CONFIG],
@@ -2551,16 +2978,16 @@ AC_ARG_WITH(pkg-config,
 	[cf_pkg_config=yes])
 AC_MSG_RESULT($cf_pkg_config)
 
-case $cf_pkg_config in #(vi
-no) #(vi
+case $cf_pkg_config in
+(no)
 	PKG_CONFIG=none
 	;;
-yes) #(vi
+(yes)
 	CF_ACVERSION_CHECK(2.52,
 		[AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
 		[AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
 	;;
-*)
+(*)
 	PKG_CONFIG=$withval
 	;;
 esac
@@ -2568,12 +2995,14 @@ esac
 test -z "$PKG_CONFIG" && PKG_CONFIG=none
 if test "$PKG_CONFIG" != none ; then
 	CF_PATH_SYNTAX(PKG_CONFIG)
+elif test "x$cf_pkg_config" != xno ; then
+	AC_MSG_WARN(pkg-config is not installed)
 fi
 
 AC_SUBST(PKG_CONFIG)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_POSIX_C_SOURCE version: 8 updated: 2010/05/26 05:38:42
+dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
 dnl -----------------
 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
 dnl
@@ -2588,7 +3017,10 @@ dnl
 dnl Parameters:
 dnl	$1 is the nominal value for _POSIX_C_SOURCE
 AC_DEFUN([CF_POSIX_C_SOURCE],
-[
+[AC_REQUIRE([CF_POSIX_VISIBLE])dnl
+
+if test "$cf_cv_posix_visible" = no; then
+
 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
 
 cf_save_CFLAGS="$CFLAGS"
@@ -2605,15 +3037,15 @@ make an error
 #endif],
 	[cf_cv_posix_c_source=no],
 	[cf_want_posix_source=no
-	 case .$cf_POSIX_C_SOURCE in #(vi
-	 .[[12]]??*) #(vi
+	 case .$cf_POSIX_C_SOURCE in
+	 (.[[12]]??*)
 		cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
 		;;
-	 .2) #(vi
+	 (.2)
 		cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
 		cf_want_posix_source=yes
 		;;
-	 .*)
+	 (.*)
 		cf_want_posix_source=yes
 		;;
 	 esac
@@ -2626,7 +3058,8 @@ make an error
 	 fi
 	 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
 	 CFLAGS="$cf_trim_CFLAGS"
-	 CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
+	 CPPFLAGS="$cf_trim_CPPFLAGS"
+	 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
 	 CF_MSG_LOG(if the second compile does not leave our definition intact error)
 	 AC_TRY_COMPILE([#include <sys/types.h>],[
 #ifndef _POSIX_C_SOURCE
@@ -2644,6 +3077,35 @@ if test "$cf_cv_posix_c_source" != no ; then
 	CF_ADD_CFLAGS($cf_cv_posix_c_source)
 fi
 
+fi # cf_cv_posix_visible
+
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
+dnl ----------------
+dnl POSIX documents test-macros which an application may set before any system
+dnl headers are included to make features available.
+dnl
+dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
+dnl diverged from POSIX in 2002 by setting symbols which make all of the most
+dnl recent features visible in the system header files unless the application
+dnl overrides the corresponding test-macros.  Doing that introduces portability
+dnl problems.
+dnl
+dnl This macro makes a special check for the symbols used for this, to avoid a
+dnl conflicting definition.
+AC_DEFUN([CF_POSIX_VISIBLE],
+[
+AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
+AC_TRY_COMPILE([#include <stdio.h>],[
+#if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
+	&& defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
+	&& defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
+	&& defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
+#error conflicting symbols found
+#endif
+],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
+])
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_PROG_AR version: 1 updated: 2009/01/01 20:15:22
@@ -2662,20 +3124,24 @@ AC_PROG_AWK
 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PROG_CC version: 3 updated: 2012/10/06 15:31:55
+dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
 dnl ----------
 dnl standard check for CC, plus followup sanity checks
 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
 AC_DEFUN([CF_PROG_CC],[
+CF_ACVERSION_CHECK(2.53,
+	[AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
+	 AC_REQUIRE([AC_PROG_CC])],
+	[])
 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
 CF_GCC_VERSION
 CF_ACVERSION_CHECK(2.52,
 	[AC_PROG_CC_STDC],
 	[CF_ANSI_CC_REQD])
-CF_CC_ENV_FLAGS 
+CF_CC_ENV_FLAGS
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PROG_CC_C_O version: 3 updated: 2010/08/14 18:25:37
+dnl CF_PROG_CC_C_O version: 5 updated: 2017/01/21 11:06:25
 dnl --------------
 dnl Analogous to AC_PROG_CC_C_O, but more useful: tests only $CC, ensures that
 dnl the output file can be renamed, and allows for a shell variable that can
@@ -2683,21 +3149,23 @@ dnl be used later.  The parameter is either CC or CXX.  The result is the
 dnl cache variable:
 dnl	$cf_cv_prog_CC_c_o
 dnl	$cf_cv_prog_CXX_c_o
+dnl
+dnl $1 = compiler
+dnl $2 = compiler options, if any
 AC_DEFUN([CF_PROG_CC_C_O],
 [AC_REQUIRE([AC_PROG_CC])dnl
 AC_MSG_CHECKING([whether [$]$1 understands -c and -o together])
 AC_CACHE_VAL(cf_cv_prog_$1_c_o,
 [
 cat > conftest.$ac_ext <<CF_EOF
-#include <stdio.h>
-int main()
+int main(void)
 {
 	${cf_cv_main_return:-return}(0);
 }
 CF_EOF
 # We do the test twice because some compilers refuse to overwrite an
 # existing .o file with -o, though they will create one.
-ac_try='[$]$1 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
+ac_try='[$]$1 $2 -c conftest.$ac_ext -o conftest2.$ac_objext >&AC_FD_CC'
 if AC_TRY_EVAL(ac_try) &&
   test -f conftest2.$ac_objext && AC_TRY_EVAL(ac_try);
 then
@@ -2714,36 +3182,36 @@ else
 fi
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PROG_EGREP version: 1 updated: 2006/09/16 11:40:59
+dnl CF_PROG_EGREP version: 2 updated: 2015/04/18 08:56:57
 dnl -------------
 dnl AC_PROG_EGREP was introduced in autoconf 2.53.
 dnl This macro adds a check to ensure the script found something.
 AC_DEFUN([CF_PROG_EGREP],
 [AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
-   [if echo a | (grep -E '(a|b)') >/dev/null 2>&1
-    then ac_cv_prog_egrep='grep -E'
-    else ac_cv_prog_egrep='egrep'
-    fi])
- EGREP=$ac_cv_prog_egrep
- AC_SUBST([EGREP])
-test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
+	[if echo a | (grep -E '(a|b)') >/dev/null 2>&1
+		then ac_cv_prog_egrep='grep -E'
+		else ac_cv_prog_egrep='egrep'
+	fi])
+	EGREP=$ac_cv_prog_egrep
+	AC_SUBST([EGREP])
+	test -z "$EGREP" && AC_MSG_ERROR(No egrep program found)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PROG_EXT version: 11 updated: 2012/10/06 08:57:51
+dnl CF_PROG_EXT version: 14 updated: 2018/06/20 20:23:13
 dnl -----------
 dnl Compute $PROG_EXT, used for non-Unix ports, such as OS/2 EMX.
 AC_DEFUN([CF_PROG_EXT],
 [
 AC_REQUIRE([CF_CHECK_CACHE])
 case $cf_cv_system_name in
-os2*)
-    CFLAGS="$CFLAGS -Zmt"
-    CPPFLAGS="$CPPFLAGS -D__ST_MT_ERRNO__"
-    CXXFLAGS="$CXXFLAGS -Zmt"
-    # autoconf's macro sets -Zexe and suffix both, which conflict:w
-    LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
-    ac_cv_exeext=.exe
-    ;;
+(os2*)
+	CFLAGS="$CFLAGS -Zmt"
+	CF_APPEND_TEXT(CPPFLAGS,-D__ST_MT_ERRNO__)
+	CXXFLAGS="$CXXFLAGS -Zmt"
+	# autoconf's macro sets -Zexe and suffix both, which conflict:w
+	LDFLAGS="$LDFLAGS -Zmt -Zcrtdll"
+	ac_cv_exeext=.exe
+	;;
 esac
 
 AC_EXEEXT
@@ -2754,25 +3222,88 @@ AC_SUBST(PROG_EXT)
 test -n "$PROG_EXT" && AC_DEFINE_UNQUOTED(PROG_EXT,"$PROG_EXT",[Define to the program extension (normally blank)])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_PROG_GNAT version: 2 updated: 2011/10/22 14:01:47
+dnl CF_PROG_GNAT version: 10 updated: 2019/12/31 08:53:54
 dnl ------------
-dnl Check for gnatmake, ensure that it is complete.
+dnl Check for gnat/gnatmake/etc, ensure that the toolset is complete.
 AC_DEFUN([CF_PROG_GNAT],[
-cf_ada_make=gnatmake
-AC_CHECK_PROG(gnat_exists, $cf_ada_make, yes, no)
-if test "$ac_cv_prog_gnat_exists" = no; then
-   cf_ada_make=
-   cf_cv_prog_gnat_correct=no
+for cf_prog_gnat in gnat gnatmake gprconfig gprbuild
+do
+	CF_UPPER(cf_upper_prog_gnat,${cf_prog_gnat})
+
+	unset ac_cv_path_cf_TEMP_gnat
+	unset cf_TEMP_gnat
+	AC_PATH_PROG(cf_TEMP_gnat,$cf_prog_gnat,no)
+	eval cf_cv_PATH_$cf_upper_prog_gnat=[$]ac_cv_path_cf_TEMP_gnat
+
+	if test "x$cf_TEMP_gnat" != xno; then
+		unset cf_cv_gnat_version
+		unset cf_TEMP_gnat
+		CF_GNAT_VERSION(cf_TEMP_gnat,$cf_prog_gnat)
+	fi
+	eval cf_cv_VERSION_$cf_upper_prog_gnat=[$]cf_TEMP_gnat
+
+	unset cf_TEMP_gnat
+	unset cf_cv_gnat_version
+	unset ac_cv_path_cf_TEMP_gnat
+done
+
+if test "x$cf_cv_VERSION_GNATMAKE" = "xno"; then
+	cf_ada_make=
+	cf_cv_prog_gnat_correct=no
 else
-   CF_GNAT_VERSION
-   AC_CHECK_PROG(M4_exists, m4, yes, no)
-   if test "$ac_cv_prog_M4_exists" = no; then
-      cf_cv_prog_gnat_correct=no
-      echo Ada95 binding required program m4 not found. Ada95 binding disabled.
-   fi
-   if test "$cf_cv_prog_gnat_correct" = yes; then
-      AC_MSG_CHECKING(if GNAT works)
-      CF_GNAT_TRY_RUN([procedure conftest;],
+	cf_ada_make=gnatmake
+	if test "x$cf_cv_VERSION_GPRCONFIG" = "xno"; then
+		# gprconfig is newer than gnatmake; we can continue...
+		cf_ada_config="##"
+	else
+		rm -rf conftest* *~conftest*
+		if mkdir conftest.src
+		then
+			cf_ada_config=""
+			cd conftest.src
+			for cf_gprconfig in Ada C
+			do
+				AC_MSG_CHECKING(for gprconfig name for $cf_gprconfig)
+				if test $cf_gprconfig = C
+				then
+					for cf_gprconfig_param in \
+						$cf_gprconfig,,,,GNATGCC \
+						$cf_gprconfig,,,,GCC \
+						$cf_gprconfig
+					do
+						cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
+						test -n "$cf_gprconfig_value" && break
+					done
+				else
+					cf_gprconfig_param=$cf_gprconfig
+					cf_gprconfig_value=`echo s| gprconfig --config=$cf_gprconfig_param 2>&AC_FD_CC | ${AWK:-awk} '/^\*/{print [$]3;}' | head -n 1`
+				fi
+				if test -n "$cf_gprconfig_value"
+				then
+					eval cf_ada_config_[$]cf_gprconfig=[$]cf_gprconfig_value
+					AC_MSG_RESULT($cf_gprconfig_value)
+				else
+					AC_MSG_RESULT(missing)
+					cf_ada_config="#"
+					break
+				fi
+			done
+			cd ..
+			rm -rf conftest* *~conftest*
+		fi
+	fi
+	if test "x$cf_ada_config" != "x#"
+	then
+		CF_GNAT_VERSION
+		CF_CHECK_GNAT_VERSION
+		AC_CHECK_PROG(M4_exists, m4, yes, no)
+		if test "$ac_cv_prog_M4_exists" = no; then
+			cf_cv_prog_gnat_correct=no
+			AC_MSG_WARN(Ada95 binding required program m4 not found. Ada95 binding disabled)
+		fi
+		if test "$cf_cv_prog_gnat_correct" = yes; then
+			AC_MSG_CHECKING(if GNAT works)
+			CF_GNAT_TRY_RUN([procedure conftest;],
 [with Text_IO;
 with GNAT.OS_Lib;
 procedure conftest is
@@ -2780,12 +3311,38 @@ begin
    Text_IO.Put ("Hello World");
    Text_IO.New_Line;
    GNAT.OS_Lib.OS_Exit (0);
-end conftest;],[cf_cv_prog_gnat_correct=yes],[cf_cv_prog_gnat_correct=no])
-      AC_MSG_RESULT($cf_cv_prog_gnat_correct)
-   fi
+end conftest;],
+[cf_cv_prog_gnat_correct=yes],
+[cf_cv_prog_gnat_correct=no])
+			AC_MSG_RESULT($cf_cv_prog_gnat_correct)
+		fi
+	else
+		cf_cv_prog_gnat_correct=no
+	fi
 fi
 
 AC_SUBST(cf_ada_make)
+AC_SUBST(cf_ada_config)
+AC_SUBST(cf_ada_config_Ada)
+AC_SUBST(cf_ada_config_C)
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_PROG_INSTALL version: 7 updated: 2015/04/18 08:56:57
+dnl ---------------
+dnl Force $INSTALL to be an absolute-path.  Otherwise, edit_man.sh and the
+dnl misc/tabset install won't work properly.  Usually this happens only when
+dnl using the fallback mkinstalldirs script
+AC_DEFUN([CF_PROG_INSTALL],
+[AC_PROG_INSTALL
+case $INSTALL in
+(/*)
+	;;
+(*)
+	CF_DIRNAME(cf_dir,$INSTALL)
+	test -z "$cf_dir" && cf_dir=.
+	INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
+	;;
+esac
 ])dnl
 dnl ---------------------------------------------------------------------------
 dnl CF_PROG_LN_S version: 2 updated: 2010/08/14 18:25:37
@@ -2840,7 +3397,43 @@ define([CF_REMOVE_LIB],
 $1=`echo "$2" | sed -e 's/-l$3[[ 	]]//g' -e 's/-l$3[$]//'`
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SHARED_OPTS version: 84 updated: 2013/11/03 06:26:10
+dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
+dnl ---------------------
+dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
+dnl $1 = name of current macro
+define([CF_RESTORE_XTRA_FLAGS],
+[
+LIBS="$cf_save_LIBS_$1"
+CFLAGS="$cf_save_CFLAGS_$1"
+CPPFLAGS="$cf_save_CPPFLAGS_$1"
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
+dnl ------------------
+dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
+dnl and libraries which do not update those variables.
+dnl
+dnl $1 = name of current macro
+define([CF_SAVE_XTRA_FLAGS],
+[
+cf_save_LIBS_$1="$LIBS"
+cf_save_CFLAGS_$1="$CFLAGS"
+cf_save_CPPFLAGS_$1="$CPPFLAGS"
+LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
+for cf_X_CFLAGS in $X_CFLAGS
+do
+	case "x$cf_X_CFLAGS" in
+	x-[[IUD]]*)
+		CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
+		;;
+	*)
+		CFLAGS="$CFLAGS $cf_X_CFLAGS"
+		;;
+	esac
+done
+])dnl
+dnl ---------------------------------------------------------------------------
+dnl CF_SHARED_OPTS version: 93 updated: 2018/08/18 16:36:35
 dnl --------------
 dnl --------------
 dnl Attempt to determine the appropriate CC/LD options for creating a shared
@@ -2868,6 +3461,7 @@ dnl Some loaders leave 'so_locations' lying around.  It's nice to clean up.
 AC_DEFUN([CF_SHARED_OPTS],
 [
 	AC_REQUIRE([CF_LD_RPATH_OPT])
+
 	RM_SHARED_OPTS=
 	LOCAL_LDFLAGS=
 	LOCAL_LDFLAGS2=
@@ -2889,15 +3483,16 @@ AC_DEFUN([CF_SHARED_OPTS],
 	AC_ARG_WITH(shlib-version,
 	[  --with-shlib-version=X  Specify rel or abi version for shared libs],
 	[test -z "$withval" && withval=auto
-	case $withval in #(vi
-	yes) #(vi
+	case $withval in
+	(yes)
 		cf_cv_shlib_version=auto
 		;;
-	rel|abi|auto|no) #(vi
+	(rel|abi|auto)
 		cf_cv_shlib_version=$withval
 		;;
-	*)
-		AC_MSG_ERROR([option value must be one of: rel, abi, auto or no])
+	(*)
+		AC_MSG_RESULT($withval)
+		AC_MSG_ERROR([option value must be one of: rel, abi, or auto])
 		;;
 	esac
 	],[cf_cv_shlib_version=auto])
@@ -2908,8 +3503,21 @@ AC_DEFUN([CF_SHARED_OPTS],
 
 	# Some less-capable ports of gcc support only -fpic
 	CC_SHARED_OPTS=
+
+	cf_try_fPIC=no
 	if test "$GCC" = yes
 	then
+		cf_try_fPIC=yes
+	else
+		case $cf_cv_system_name in
+		(*linux*)	# e.g., PGI compiler
+			cf_try_fPIC=yes
+			;;
+		esac
+	fi
+
+	if test "$cf_try_fPIC" = yes
+	then
 		AC_MSG_CHECKING(which $CC option to use)
 		cf_save_CFLAGS="$CFLAGS"
 		for CC_SHARED_OPTS in -fPIC -fpic ''
@@ -2923,30 +3531,30 @@ AC_DEFUN([CF_SHARED_OPTS],
 
 	cf_cv_shlib_version_infix=no
 
-	case $cf_cv_system_name in #(vi
-	aix4.[3-9]*|aix[[5-7]]*) #(vi
+	case $cf_cv_system_name in
+	(aix4.[3-9]*|aix[[5-7]]*)
 		if test "$GCC" = yes; then
-			CC_SHARED_OPTS=
-			MK_SHARED_LIB='${CC} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
+			CC_SHARED_OPTS='-Wl,-brtl'
+			MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
 		else
-			# CC_SHARED_OPTS='-qpic=large -G'
-			# perhaps "-bM:SRE -bnoentry -bexpall"
-			MK_SHARED_LIB='${CC} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
+			CC_SHARED_OPTS='-brtl'
+			# as well as '-qpic=large -G' or perhaps "-bM:SRE -bnoentry -bexpall"
+			MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -G -Wl,-brtl -Wl,-blibpath:${RPATH_LIST}:/usr/lib -o [$]@'
 		fi
 		;;
-	beos*) #(vi
-		MK_SHARED_LIB='${CC} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
+	(beos*)
+		MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -o $[@] -Xlinker -soname=`basename $[@]` -nostart -e 0'
 		;;
-	cygwin*) #(vi
+	(cygwin*)
 		CC_SHARED_OPTS=
-		MK_SHARED_LIB='sh '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
+		MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
 		RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
 		cf_cv_shlib_version=cygdll
 		cf_cv_shlib_version_infix=cygdll
 		shlibdir=$bindir
 		MAKE_DLLS=
 		cat >mk_shared_lib.sh <<-CF_EOF
-		#!/bin/sh
+		#!$SHELL
 		SHARED_LIB=\[$]1
 		IMPORT_LIB=\`echo "\[$]1" | sed -e 's/cyg/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
 		shift
@@ -2955,20 +3563,20 @@ AC_DEFUN([CF_SHARED_OPTS],
 		** SHARED_LIB \[$]SHARED_LIB
 		** IMPORT_LIB \[$]IMPORT_LIB
 EOF
-		exec \[$]* -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
+		exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
 CF_EOF
 		chmod +x mk_shared_lib.sh
 		;;
-	msys*) #(vi
+	(msys*)
 		CC_SHARED_OPTS=
-		MK_SHARED_LIB='sh '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
+		MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
 		RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
 		cf_cv_shlib_version=msysdll
 		cf_cv_shlib_version_infix=msysdll
 		shlibdir=$bindir
 		MAKE_DLLS=
 		cat >mk_shared_lib.sh <<-CF_EOF
-		#!/bin/sh
+		#!$SHELL
 		SHARED_LIB=\[$]1
 		IMPORT_LIB=\`echo "\[$]1" | sed -e 's/msys-/lib/' -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
 		shift
@@ -2977,14 +3585,14 @@ CF_EOF
 		** SHARED_LIB \[$]SHARED_LIB
 		** IMPORT_LIB \[$]IMPORT_LIB
 EOF
-		exec \[$]* -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
+		exec \[$]* ${LDFLAGS} -shared -Wl,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
 CF_EOF
 		chmod +x mk_shared_lib.sh
 		;;
-	darwin*) #(vi
+	(darwin*)
 		cf_try_cflags="no-cpp-precomp"
 		CC_SHARED_OPTS="-dynamic"
-		MK_SHARED_LIB='${CC} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
+		MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dynamiclib -install_name ${libdir}/`basename $[@]` -compatibility_version ${ABI_VERSION} -current_version ${ABI_VERSION} -o $[@]'
 		test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=abi
 		cf_cv_shlib_version_infix=yes
 		AC_CACHE_CHECK([if ld -search_paths_first works], cf_cv_ldflags_search_paths_first, [
@@ -2996,15 +3604,15 @@ CF_EOF
 			LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
 		fi
 		;;
-	hpux[[7-8]]*) #(vi
-		# HP-UX 8.07 ld lacks "+b" option used for libdir search-list 
+	(hpux[[7-8]]*)
+		# HP-UX 8.07 ld lacks "+b" option used for libdir search-list
 		if test "$GCC" != yes; then
 			CC_SHARED_OPTS='+Z'
 		fi
-		MK_SHARED_LIB='${LD} -b -o $[@]'
+		MK_SHARED_LIB='${LD} ${LDFLAGS} -b -o $[@]'
 		INSTALL_LIB="-m 555"
 		;;
-	hpux*) #(vi
+	(hpux*)
 		# (tested with gcc 2.7.2 -- I don't have c89)
 		if test "$GCC" = yes; then
 			LD_SHARED_OPTS='-Xlinker +b -Xlinker ${libdir}'
@@ -3012,36 +3620,36 @@ CF_EOF
 			CC_SHARED_OPTS='+Z'
 			LD_SHARED_OPTS='-Wl,+b,${libdir}'
 		fi
-		MK_SHARED_LIB='${LD} +b ${libdir} -b -o $[@]'
+		MK_SHARED_LIB='${LD} ${LDFLAGS} +b ${libdir} -b -o $[@]'
 		# HP-UX shared libraries must be executable, and should be
 		# readonly to exploit a quirk in the memory manager.
 		INSTALL_LIB="-m 555"
 		;;
-	interix*)
+	(interix*)
 		test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
 		if test "$cf_cv_shlib_version" = rel; then
-			cf_shared_soname='`basename $@ .${REL_VERSION}`.${ABI_VERSION}'
+			cf_shared_soname='`basename $[@] .${REL_VERSION}`.${ABI_VERSION}'
 		else
-			cf_shared_soname='`basename $@`'
+			cf_shared_soname='`basename $[@]`'
 		fi
 		CC_SHARED_OPTS=
-		MK_SHARED_LIB='${CC} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $@'
+		MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-rpath,${RPATH_LIST} -Wl,-h,'$cf_shared_soname' -o $[@]'
 		;;
-	irix*) #(vi
+	(irix*)
 		if test "$cf_cv_enable_rpath" = yes ; then
 			EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
 		fi
 		# tested with IRIX 5.2 and 'cc'.
 		if test "$GCC" != yes; then
 			CC_SHARED_OPTS='-KPIC'
-			MK_SHARED_LIB='${CC} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
+			MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -rdata_shared -soname `basename $[@]` -o $[@]'
 		else
-			MK_SHARED_LIB='${CC} -shared -Wl,-soname,`basename $[@]` -o $[@]'
+			MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,`basename $[@]` -o $[@]'
 		fi
 		cf_cv_rm_so_locs=yes
 		;;
-	linux*|gnu*|k*bsd*-gnu) #(vi
-		if test "$DFT_LWR_MODEL" = "shared" ; then
+	(linux*|gnu*|k*bsd*-gnu)
+		if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
 			LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
 			LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
 		fi
@@ -3049,9 +3657,9 @@ CF_EOF
 			EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
 		fi
 		CF_SHARED_SONAME
-		MK_SHARED_LIB='${CC} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
+		MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
 		;;
-	mingw*) #(vi
+	(mingw*)
 		cf_cv_shlib_version=mingw
 		cf_cv_shlib_version_infix=mingw
 		shlibdir=$bindir
@@ -3062,10 +3670,10 @@ CF_EOF
 			EXTRA_LDFLAGS="-Wl,--enable-auto-import $EXTRA_LDFLAGS"
 		fi
 		CC_SHARED_OPTS=
-		MK_SHARED_LIB='sh '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
+		MK_SHARED_LIB=$SHELL' '$rel_builddir'/mk_shared_lib.sh [$]@ [$]{CC} [$]{CFLAGS}'
 		RM_SHARED_OPTS="$RM_SHARED_OPTS $rel_builddir/mk_shared_lib.sh *.dll.a"
 		cat >mk_shared_lib.sh <<-CF_EOF
-		#!/bin/sh
+		#!$SHELL
 		SHARED_LIB=\[$]1
 		IMPORT_LIB=\`echo "\[$]1" | sed -e 's/[[0-9]]*\.dll[$]/.dll.a/'\`
 		shift
@@ -3074,12 +3682,12 @@ CF_EOF
 		** SHARED_LIB \[$]SHARED_LIB
 		** IMPORT_LIB \[$]IMPORT_LIB
 EOF
-		exec \[$]* -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
+		exec \[$]* ${LDFLAGS} -shared -Wl,--enable-auto-import,--out-implib=\[$]{IMPORT_LIB} -Wl,--export-all-symbols -o \[$]{SHARED_LIB}
 CF_EOF
 		chmod +x mk_shared_lib.sh
 		;;
-	openbsd[[2-9]].*|mirbsd*) #(vi
-		if test "$DFT_LWR_MODEL" = "shared" ; then
+	(openbsd[[2-9]].*|mirbsd*)
+		if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
 			LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
 			LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
 		fi
@@ -3088,14 +3696,14 @@ CF_EOF
 		fi
 		CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
 		CF_SHARED_SONAME
-		MK_SHARED_LIB='${CC} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
+		MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-Bshareable,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
 		;;
-	nto-qnx*|openbsd*|freebsd[[12]].*) #(vi
+	(nto-qnx*|openbsd*|freebsd[[12]].*)
 		CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
-		MK_SHARED_LIB='${LD} -Bshareable -o $[@]'
+		MK_SHARED_LIB='${LD} ${LDFLAGS} -Bshareable -o $[@]'
 		test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
 		;;
-	dragonfly*|freebsd*) #(vi
+	(dragonfly*|freebsd*)
 		CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
 		if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
 			LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
@@ -3103,9 +3711,9 @@ CF_EOF
 			EXTRA_LDFLAGS="${cf_ld_rpath_opt}\${RPATH_LIST} $EXTRA_LDFLAGS"
 		fi
 		CF_SHARED_SONAME
-		MK_SHARED_LIB='${LD} -shared -Bshareable -soname=`basename $[@]` -o $[@]'
+		MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname',-stats,-lc -o $[@]'
 		;;
-	netbsd*) #(vi
+	(netbsd*)
 		CC_SHARED_OPTS="$CC_SHARED_OPTS -DPIC"
 		if test "$DFT_LWR_MODEL" = "shared" && test "$cf_cv_enable_rpath" = yes ; then
 			LOCAL_LDFLAGS="${cf_ld_rpath_opt}\$(LOCAL_LIBDIR)"
@@ -3119,34 +3727,34 @@ CF_EOF
 			fi
 			fi
 			CF_SHARED_SONAME
-			MK_SHARED_LIB='${CC} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
+			MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -Wl,-soname,'$cf_cv_shared_soname' -o $[@]'
 		else
-			MK_SHARED_LIB='${CC} -Wl,-shared -Wl,-Bshareable -o $[@]'
+			MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -Wl,-shared -Wl,-Bshareable -o $[@]'
 		fi
 		;;
-	osf*|mls+*) #(vi
+	(osf*|mls+*)
 		# tested with OSF/1 V3.2 and 'cc'
 		# tested with OSF/1 V3.2 and gcc 2.6.3 (but the c++ demo didn't
 		# link with shared libs).
-		MK_SHARED_LIB='${LD} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
-		case $host_os in #(vi
-		osf4*)
+		MK_SHARED_LIB='${LD} ${LDFLAGS} -set_version ${REL_VERSION}:${ABI_VERSION} -expect_unresolved "*" -shared -soname `basename $[@]`'
+		case $host_os in
+		(osf4*)
 			MK_SHARED_LIB="${MK_SHARED_LIB} -msym"
 			;;
 		esac
 		MK_SHARED_LIB="${MK_SHARED_LIB}"' -o $[@]'
-		if test "$DFT_LWR_MODEL" = "shared" ; then
+		if test "$DFT_LWR_MODEL" = "shared" && test -n "$LD_RPATH_OPT" ; then
 			LOCAL_LDFLAGS="${LD_RPATH_OPT}\$(LOCAL_LIBDIR)"
 			LOCAL_LDFLAGS2="$LOCAL_LDFLAGS"
 		fi
 		cf_cv_rm_so_locs=yes
 		;;
-	sco3.2v5*)  # (also uw2* and UW7: hops 13-Apr-98
+	(sco3.2v5*)  # also uw2* and UW7: hops 13-Apr-98
 		# tested with osr5.0.5
 		if test "$GCC" != yes; then
 			CC_SHARED_OPTS='-belf -KPIC'
 		fi
-		MK_SHARED_LIB='${LD} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
+		MK_SHARED_LIB='${LD} ${LDFLAGS} -dy -G -h `basename $[@] .${REL_VERSION}`.${ABI_VERSION} -o [$]@'
 		if test "$cf_cv_enable_rpath" = yes ; then
 			# only way is to set LD_RUN_PATH but no switch for it
 			RUN_PATH=$libdir
@@ -3155,15 +3763,15 @@ CF_EOF
 		LINK_PROGS='LD_RUN_PATH=${libdir}'
 		LINK_TESTS='Pwd=`pwd`;LD_RUN_PATH=`dirname $${Pwd}`/lib'
 		;;
-	sunos4*) #(vi
+	(sunos4*)
 		# tested with SunOS 4.1.1 and gcc 2.7.0
 		if test "$GCC" != yes; then
 			CC_SHARED_OPTS='-KPIC'
 		fi
-		MK_SHARED_LIB='${LD} -assert pure-text -o $[@]'
+		MK_SHARED_LIB='${LD} ${LDFLAGS} -assert pure-text -o $[@]'
 		test "$cf_cv_shlib_version" = auto && cf_cv_shlib_version=rel
 		;;
-	solaris2*) #(vi
+	(solaris2*)
 		# tested with SunOS 5.5.1 (solaris 2.5.1) and gcc 2.7.2
 		# tested with SunOS 5.10 (solaris 10) and gcc 3.4.3
 		if test "$DFT_LWR_MODEL" = "shared" ; then
@@ -3183,32 +3791,32 @@ CF_EOF
 			done
 			CFLAGS="$cf_save_CFLAGS"
 			CC_SHARED_OPTS=$cf_shared_opts
-			MK_SHARED_LIB='${CC} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
+			MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -dy -G -h '$cf_cv_shared_soname' -o $[@]'
 		else
-			MK_SHARED_LIB='${CC} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
+			MK_SHARED_LIB='${CC} ${LDFLAGS} ${CFLAGS} -shared -dy -G -h '$cf_cv_shared_soname' -o $[@]'
 		fi
 		;;
-	sysv5uw7*|unix_sv*) #(vi
+	(sysv5uw7*|unix_sv*)
 		# tested with UnixWare 7.1.0 (gcc 2.95.2 and cc)
 		if test "$GCC" != yes; then
 			CC_SHARED_OPTS='-KPIC'
 		fi
-		MK_SHARED_LIB='${LD} -d y -G -o [$]@'
+		MK_SHARED_LIB='${LD} ${LDFLAGS} -d y -G -o [$]@'
 		;;
-	*)
+	(*)
 		CC_SHARED_OPTS='unknown'
 		MK_SHARED_LIB='echo unknown'
 		;;
 	esac
 
 	# This works if the last tokens in $MK_SHARED_LIB are the -o target.
-	case "$cf_cv_shlib_version" in #(vi
-	rel|abi)
-		case "$MK_SHARED_LIB" in #(vi
-		*'-o $[@]') #(vi
+	case "$cf_cv_shlib_version" in
+	(rel|abi)
+		case "$MK_SHARED_LIB" in
+		(*'-o $[@]')
 			test "$cf_cv_do_symlinks" = no && cf_cv_do_symlinks=yes
 			;;
-		*)
+		(*)
 			AC_MSG_WARN(ignored --with-shlib-version)
 			;;
 		esac
@@ -3292,7 +3900,7 @@ dnl	Remove "-g" option from the compiler options
 AC_DEFUN([CF_STRIP_G_OPT],
 [$1=`echo ${$1} | sed -e 's%-g %%' -e 's%-g$%%'`])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_SUBDIR_PATH version: 6 updated: 2010/04/21 06:20:50
+dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
 dnl --------------
 dnl Construct a search-list for a nonstandard header/lib-file
 dnl	$1 = the variable to return as result
@@ -3302,25 +3910,32 @@ AC_DEFUN([CF_SUBDIR_PATH],
 [
 $1=
 
-CF_ADD_SUBDIR_PATH($1,$2,$3,/usr,$prefix)
 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
-CF_ADD_SUBDIR_PATH($1,$2,$3,/usr/local,$prefix)
-CF_ADD_SUBDIR_PATH($1,$2,$3,/opt,$prefix)
-CF_ADD_SUBDIR_PATH($1,$2,$3,[$]HOME,$prefix)
+
+for cf_subdir_prefix in \
+	/usr \
+	/usr/local \
+	/usr/pkg \
+	/opt \
+	/opt/local \
+	[$]HOME
+do
+	CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
+done
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_TERM_HEADER version: 3 updated: 2012/10/06 08:57:51
+dnl CF_TERM_HEADER version: 4 updated: 2015/04/15 19:08:48
 dnl --------------
 dnl Look for term.h, which is part of X/Open curses.  It defines the interface
 dnl to terminfo database.  Usually it is in the same include-path as curses.h,
 dnl but some packagers change this, breaking various applications.
 AC_DEFUN([CF_TERM_HEADER],[
 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
-case ${cf_cv_ncurses_header} in #(vi
-*/ncurses.h|*/ncursesw.h) #(vi
+case ${cf_cv_ncurses_header} in
+(*/ncurses.h|*/ncursesw.h)
 	cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
 	;;
-*)
+(*)
 	cf_term_header=term.h
 	;;
 esac
@@ -3340,17 +3955,17 @@ done
 
 # Set definitions to allow ifdef'ing to accommodate subdirectories
 
-case $cf_cv_term_header in # (vi
-*term.h)
+case $cf_cv_term_header in
+(*term.h)
 	AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
 	;;
 esac
 
-case $cf_cv_term_header in # (vi
-ncurses/term.h) #(vi
+case $cf_cv_term_header in
+(ncurses/term.h)
 	AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
 	;;
-ncursesw/term.h)
+(ncursesw/term.h)
 	AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
 	;;
 esac
@@ -3365,7 +3980,7 @@ top_builddir=ifelse($1,,`pwd`,$1)
 AC_SUBST(top_builddir)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
+dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
 dnl -------------------
 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
 dnl can define it successfully.
@@ -3381,7 +3996,7 @@ make an error
 #endif],
 	[cf_cv_xopen_source=no],
 	[cf_save="$CPPFLAGS"
-	 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
+	 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
 	 AC_TRY_COMPILE([
 #include <stdlib.h>
 #include <string.h>
@@ -3500,6 +4115,27 @@ AC_SUBST(ADA_INCLUDE)
 AC_MSG_RESULT($ADA_INCLUDE)
 ])dnl
 dnl ---------------------------------------------------------------------------
+dnl CF_WITH_ADA_LIBNAME version: 1 updated: 2019/09/07 18:59:41
+dnl -------------------
+dnl CF_WITH_ADA_LIBNAME
+dnl -------------------
+dnl Command-line option to specify how to name the resulting Ada library.
+dnl $1 = default value
+AC_DEFUN([CF_WITH_ADA_LIBNAME],[
+AC_MSG_CHECKING(for ada-libname)
+AC_ARG_WITH(ada-libname,
+   [  --with-ada-libname=XXX  override default Ada library-name],
+   ADA_LIBNAME=[$]withval,
+   ADA_LIBNAME=$1)
+case "x$ADA_LIBNAME" in
+(x|xyes|xno)
+	ADA_LIBNAME=$1
+	;;
+esac
+AC_SUBST(ADA_LIBNAME)
+AC_MSG_RESULT($ADA_LIBNAME)
+])dnl
+dnl ---------------------------------------------------------------------------
 dnl CF_WITH_ADA_OBJECTS version: 2 updated: 2010/06/26 17:35:58
 dnl -------------------
 dnl Command-line option to specify where Ada objects will install.
@@ -3514,18 +4150,28 @@ AC_SUBST(ADA_OBJECTS)
 AC_MSG_RESULT($ADA_OBJECTS)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_WITH_ADA_SHAREDLIB version: 2 updated: 2010/06/26 17:35:58
+dnl CF_WITH_ADA_SHAREDLIB version: 5 updated: 2018/07/21 19:10:35
 dnl ---------------------
 dnl Command-line option to specify if an Ada95 shared-library should be built,
 dnl and optionally what its soname should be.
 AC_DEFUN([CF_WITH_ADA_SHAREDLIB],[
+AC_REQUIRE([CF_GNAT_PROJECTS])
 AC_MSG_CHECKING(if an Ada95 shared-library should be built)
 AC_ARG_WITH(ada-sharedlib,
-	[  --with-ada-sharedlib=XX build Ada95 shared-library],
+	[  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)],
 	[with_ada_sharedlib=$withval],
 	[with_ada_sharedlib=no])
 AC_MSG_RESULT($with_ada_sharedlib)
 
+if test "x$with_ada_sharedlib" != xno
+then
+	if test "x$cf_gnat_projects" != xyes
+	then
+		AC_MSG_WARN(disabling shared-library since GNAT projects are not supported)
+		with_ada_sharedlib=no
+	fi
+fi
+
 ADA_SHAREDLIB='lib$(LIB_NAME).so.1'
 MAKE_ADA_SHAREDLIB="#"
 
@@ -3613,64 +4259,102 @@ eval $3="$withval"
 AC_SUBST($3)dnl
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_WITH_PKG_CONFIG_LIBDIR version: 2 updated: 2011/12/10 18:58:47
+dnl CF_WITH_PKG_CONFIG_LIBDIR version: 10 updated: 2015/08/22 17:10:56
 dnl -------------------------
 dnl Allow the choice of the pkg-config library directory to be overridden.
 AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
-if test "$PKG_CONFIG" != none ; then
+
+case $PKG_CONFIG in
+(no|none|yes)
+	AC_MSG_CHECKING(for pkg-config library directory)
+	;;
+(*)
 	AC_MSG_CHECKING(for $PKG_CONFIG library directory)
-	AC_ARG_WITH(pkg-config-libdir,
-		[  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
-		[PKG_CONFIG_LIBDIR=$withval],
-		[PKG_CONFIG_LIBDIR=yes])
+	;;
+esac
 
-	case x$PKG_CONFIG_LIBDIR in #(vi
-	x/*) #(vi
-		;;
-	xyes) #(vi
-		# look for the library directory using the same prefix as the executable
+PKG_CONFIG_LIBDIR=no
+AC_ARG_WITH(pkg-config-libdir,
+	[  --with-pkg-config-libdir=XXX use given directory for installing pc-files],
+	[PKG_CONFIG_LIBDIR=$withval],
+	[test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes])
+
+case x$PKG_CONFIG_LIBDIR in
+(x/*)
+	;;
+(xyes)
+	# Look for the library directory using the same prefix as the executable
+	if test "x$PKG_CONFIG" = xnone
+	then
+		cf_path=$prefix
+	else
 		cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[[^/]]*/[[^/]]*$,,'`
-		case x`(arch) 2>/dev/null` in #(vi
-		*64) #(vi
-			for cf_config in $cf_path/share $cf_path/lib64 $cf_path/lib32 $cf_path/lib
-			do
-				if test -d $cf_config/pkgconfig
-				then
-					PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
-					break
-				fi
-			done
-			;;
-		*)
-			PKG_CONFIG_LIBDIR=$cf_path/lib/pkgconfig
-			;;
-		esac
+	fi
+
+	# If you don't like using the default architecture, you have to specify the
+	# intended library directory and corresponding compiler/linker options.
+	#
+	# This case allows for Debian's 2014-flavor of multiarch, along with the
+	# most common variations before that point.  Some other variants spell the
+	# directory differently, e.g., "pkg-config", and put it in unusual places.
+	# pkg-config has always been poorly standardized, which is ironic...
+	case x`(arch) 2>/dev/null` in
+	(*64)
+		cf_search_path="\
+			$cf_path/lib/*64-linux-gnu \
+			$cf_path/share \
+			$cf_path/lib64 \
+			$cf_path/lib32 \
+			$cf_path/lib"
 		;;
-	*)
+	(*)
+		cf_search_path="\
+			$cf_path/lib/*-linux-gnu \
+			$cf_path/share \
+			$cf_path/lib32 \
+			$cf_path/lib \
+			$cf_path/libdata"
 		;;
 	esac
 
+	CF_VERBOSE(list...)
+	for cf_config in $cf_search_path
+	do
+		CF_VERBOSE(checking $cf_config/pkgconfig)
+		if test -d $cf_config/pkgconfig
+		then
+			PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
+			AC_MSG_CHECKING(done)
+			break
+		fi
+	done
+	;;
+(*)
+	;;
+esac
+
+if test "x$PKG_CONFIG_LIBDIR" != xno ; then
 	AC_MSG_RESULT($PKG_CONFIG_LIBDIR)
 fi
 
 AC_SUBST(PKG_CONFIG_LIBDIR)
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_WITH_PTHREAD version: 6 updated: 2012/10/06 17:41:51
+dnl CF_WITH_PTHREAD version: 7 updated: 2015/04/18 08:56:57
 dnl ---------------
 dnl Check for POSIX thread library.
 AC_DEFUN([CF_WITH_PTHREAD],
 [
 AC_MSG_CHECKING(if you want to link with the pthread library)
 AC_ARG_WITH(pthread,
-    [  --with-pthread          use POSIX thread library],
-    [with_pthread=$withval],
-    [with_pthread=no])
+	[  --with-pthread          use POSIX thread library],
+	[with_pthread=$withval],
+	[with_pthread=no])
 AC_MSG_RESULT($with_pthread)
 
 if test "$with_pthread" != no ; then
-    AC_CHECK_HEADER(pthread.h,[
-        AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
+	AC_CHECK_HEADER(pthread.h,[
+	AC_DEFINE(HAVE_PTHREADS_H,1,[Define to 1 if we have pthreads.h header])
 
 	for cf_lib_pthread in pthread c_r
 	do
@@ -3694,7 +4378,7 @@ if test "$with_pthread" != no ; then
 	else
 	    AC_MSG_ERROR(Cannot link with pthread library)
 	fi
-    ])
+	])
 fi
 ])
 dnl ---------------------------------------------------------------------------
@@ -3718,7 +4402,7 @@ AC_ARG_WITH(system-type,
 ])
 ])dnl
 dnl ---------------------------------------------------------------------------
-dnl CF_XOPEN_SOURCE version: 46 updated: 2014/02/09 19:30:15
+dnl CF_XOPEN_SOURCE version: 55 updated: 2018/12/31 20:46:17
 dnl ---------------
 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
 dnl or adapt to the vendor's definitions to get equivalent functionality,
@@ -3729,26 +4413,29 @@ dnl	$1 is the nominal value for _XOPEN_SOURCE
 dnl	$2 is the nominal value for _POSIX_C_SOURCE
 AC_DEFUN([CF_XOPEN_SOURCE],[
 AC_REQUIRE([AC_CANONICAL_HOST])
+AC_REQUIRE([CF_POSIX_VISIBLE])
+
+if test "$cf_cv_posix_visible" = no; then
 
 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
 cf_xopen_source=
 
-case $host_os in #(vi
-aix[[4-7]]*) #(vi
+case $host_os in
+(aix[[4-7]]*)
 	cf_xopen_source="-D_ALL_SOURCE"
 	;;
-cygwin|msys) #(vi
+(msys)
 	cf_XOPEN_SOURCE=600
 	;;
-darwin[[0-8]].*) #(vi
+(darwin[[0-8]].*)
 	cf_xopen_source="-D_APPLE_C_SOURCE"
 	;;
-darwin*) #(vi
+(darwin*)
 	cf_xopen_source="-D_DARWIN_C_SOURCE"
 	cf_XOPEN_SOURCE=
 	;;
-freebsd*|dragonfly*) #(vi
+(freebsd*|dragonfly*|midnightbsd*)
 	# 5.x headers associate
 	#	_XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
 	#	_XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
@@ -3756,56 +4443,63 @@ freebsd*|dragonfly*) #(vi
 	cf_XOPEN_SOURCE=600
 	cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
 	;;
-hpux11*) #(vi
+(hpux11*)
 	cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
 	;;
-hpux*) #(vi
+(hpux*)
 	cf_xopen_source="-D_HPUX_SOURCE"
 	;;
-irix[[56]].*) #(vi
+(irix[[56]].*)
 	cf_xopen_source="-D_SGI_SOURCE"
 	cf_XOPEN_SOURCE=
 	;;
-linux*|gnu*|mint*|k*bsd*-gnu) #(vi
-	CF_GNU_SOURCE
+(linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
+	CF_GNU_SOURCE($cf_XOPEN_SOURCE)
 	;;
-mirbsd*) #(vi
+(minix*)
+	cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
+	;;
+(mirbsd*)
 	# setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
 	cf_XOPEN_SOURCE=
 	CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
 	;;
-netbsd*) #(vi
+(netbsd*)
 	cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
 	;;
-openbsd[[4-9]]*) #(vi
+(openbsd[[4-9]]*)
 	# setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
 	cf_xopen_source="-D_BSD_SOURCE"
 	cf_XOPEN_SOURCE=600
 	;;
-openbsd*) #(vi
+(openbsd*)
 	# setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
 	;;
-osf[[45]]*) #(vi
+(osf[[45]]*)
 	cf_xopen_source="-D_OSF_SOURCE"
 	;;
-nto-qnx*) #(vi
+(nto-qnx*)
 	cf_xopen_source="-D_QNX_SOURCE"
 	;;
-sco*) #(vi
+(sco*)
 	# setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
 	;;
-solaris2.*) #(vi
+(solaris2.*)
 	cf_xopen_source="-D__EXTENSIONS__"
 	cf_cv_xopen_source=broken
 	;;
-*)
+(sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
+	cf_XOPEN_SOURCE=
+	cf_POSIX_C_SOURCE=
+	;;
+(*)
 	CF_TRY_XOPEN_SOURCE
 	CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
 	;;
 esac
 
 if test -n "$cf_xopen_source" ; then
-	CF_ADD_CFLAGS($cf_xopen_source)
+	CF_ADD_CFLAGS($cf_xopen_source,true)
 fi
 
 dnl In anything but the default case, we may have system-specific setting
@@ -3836,4 +4530,5 @@ make an error
 		CF_TRY_XOPEN_SOURCE
 	fi
 fi
+fi # cf_cv_posix_visible
 ])
diff --git a/Ada95/configure b/Ada95/configure
index f9c4b05e7249..8551030a3c81 100755
--- a/Ada95/configure
+++ b/Ada95/configure
@@ -1,7 +1,7 @@
 #! /bin/sh
-# From configure.in Revision: 1.49 .
+# From configure.in Revision: 1.74 .
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by Autoconf 2.52.20121002.
+# Generated by Autoconf 2.52.20200111.
 #
 # Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
 # Free Software Foundation, Inc.
@@ -106,6 +106,42 @@ SHELL=${CONFIG_SHELL-/bin/sh}
 : ${ac_max_here_lines=38}
 
 ac_unique_file="gen/gen.c"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# if HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#if HAVE_STRING_H
+# if !STDC_HEADERS && HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#if HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#else
+# if HAVE_STDINT_H
+#  include <stdint.h>
+# endif
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
 
 # Initialize some variables set by options.
 ac_init_help=
@@ -140,6 +176,7 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
 libdir='${exec_prefix}/lib'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
@@ -282,6 +319,15 @@ do
   | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
     localstatedir=$ac_optarg ;;
 
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst \
+  | --runs | --run | --ru)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* \
+  | --runs=* | --run=* | --ru=*)
+    runstatedir=$ac_optarg ;;
+
   -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
     ac_prev=mandir ;;
   -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
@@ -619,6 +665,7 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       extra definition of runtime data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -652,10 +699,11 @@ Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
 
+General Options:
   --with-system-type=XXX  test: override derived host system-type
+  --disable-stripping     do not strip (debug info) installed executables
   --with-pkg-config{=path} enable/disable use of pkg-config
   --with-pkg-config-libdir=XXX use given directory for installing pc-files
-  --enable-pc-files       generate and install .pc files for pkg-config
   --without-tests         suppress build with test-programs
   --enable-mixed-case     tic should assume mixed-case filenames
   --with-install-prefix   prefixes actual install-location ($DESTDIR)
@@ -668,8 +716,8 @@ Build-Tools Needed to Compile Temporary Applications for Cross-compiling:
   --with-build-libs=XXX   the build libraries (${BUILD_LIBS})
 Options to Specify the Libraries Built/Used:
   --with-shared           generate shared C-objects (needed for --with-ada-sharedlib)
-  --enable-widec          compile with wide-char/UTF-8 code
   --with-curses-dir=DIR   directory in which (n)curses is installed
+  --enable-widec          compile with wide-char/UTF-8 code
   --with-lib-prefix       override library-prefix
   --with-shlib-version=X  Specify rel or abi version for shared libs
   --enable-rpath-link     link sample programs with rpath option
@@ -694,11 +742,13 @@ Testing/development Options:
   --enable-expanded       test: generate functions for certain macros
   --disable-macros        test: use functions rather than macros
   --with-trace            test: add trace() function to all models of ncurses
+  --disable-gnat-projects test: disable GNAT projects even if usable
 Ada95 Binding Options:
   --with-ada-compiler=CMD specify Ada95 compiler command (default gnatmake)
   --with-ada-include=DIR  Ada includes are in DIR (default: PREFIX/share/ada/adainclude)
   --with-ada-objects=DIR  Ada objects are in DIR (default: PREFIX/lib/ada/adalib)
-  --with-ada-sharedlib=XX build Ada95 shared-library
+  --with-ada-sharedlib=soname build shared-library (requires GNAT projects)
+  --with-ada-libname=XXX  override default Ada library-name
 
 Some influential environment variables:
   CC          C compiler command
@@ -768,7 +818,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.52.20121002.  Invocation command line was
+generated by GNU Autoconf 2.52.20200111.  Invocation command line was
 
   $ $0 $@
 
@@ -892,7 +942,7 @@ if test -z "$CONFIG_SITE"; then
 fi
 for ac_site_file in $CONFIG_SITE; do
   if test -r "$ac_site_file"; then
-    { echo "$as_me:895: loading site script $ac_site_file" >&5
+    { echo "$as_me:945: loading site script $ac_site_file" >&5
 echo "$as_me: loading site script $ac_site_file" >&6;}
     cat "$ac_site_file" >&5
     . "$ac_site_file"
@@ -903,7 +953,7 @@ if test -r "$cache_file"; then
   # Some versions of bash will fail to source /dev/null (special
   # files actually), so we avoid doing that.
   if test -f "$cache_file"; then
-    { echo "$as_me:906: loading cache $cache_file" >&5
+    { echo "$as_me:956: loading cache $cache_file" >&5
 echo "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . $cache_file;;
@@ -911,7 +961,7 @@ echo "$as_me: loading cache $cache_file" >&6;}
     esac
   fi
 else
-  { echo "$as_me:914: creating cache $cache_file" >&5
+  { echo "$as_me:964: creating cache $cache_file" >&5
 echo "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
@@ -927,21 +977,21 @@ for ac_var in `(set) 2>&1 |
   eval ac_new_val="\$ac_env_${ac_var}_value"
   case $ac_old_set,$ac_new_set in
     set,)
-      { echo "$as_me:930: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+      { echo "$as_me:980: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
 echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { echo "$as_me:934: error: \`$ac_var' was not set in the previous run" >&5
+      { echo "$as_me:984: error: \`$ac_var' was not set in the previous run" >&5
 echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
     *)
       if test "x$ac_old_val" != "x$ac_new_val"; then
-        { echo "$as_me:940: error: \`$ac_var' has changed since the previous run:" >&5
+        { echo "$as_me:990: error: \`$ac_var' has changed since the previous run:" >&5
 echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
-        { echo "$as_me:942:   former value:  $ac_old_val" >&5
+        { echo "$as_me:992:   former value:  $ac_old_val" >&5
 echo "$as_me:   former value:  $ac_old_val" >&2;}
-        { echo "$as_me:944:   current value: $ac_new_val" >&5
+        { echo "$as_me:994:   current value: $ac_new_val" >&5
 echo "$as_me:   current value: $ac_new_val" >&2;}
         ac_cache_corrupted=:
       fi;;
@@ -960,9 +1010,9 @@ echo "$as_me:   current value: $ac_new_val" >&2;}
   fi
 done
 if $ac_cache_corrupted; then
-  { echo "$as_me:963: error: changes in the environment can compromise the build" >&5
+  { echo "$as_me:1013: error: changes in the environment can compromise the build" >&5
 echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  { { echo "$as_me:965: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
+  { { echo "$as_me:1015: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
 echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
    { (exit 1); exit 1; }; }
 fi
@@ -974,19 +1024,19 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 ac_main_return=return
 
-case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
-  *c*,-n*) ECHO_N= ECHO_C='
-' ECHO_T='	' ;;
+case `echo "testing\c" 2>/dev/null; echo 1,2,3`,`echo -n testing 2>/dev/null; echo 1,2,3` in
+  *c*,-n*) ECHO_N= ECHO_C=	# newlines do not sed ;-) only broken shells would use this case anyway
+		   ECHO_T='	' ;;
   *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
   *)      ECHO_N= ECHO_C='\c' ECHO_T= ;;
 esac
 echo "#! $SHELL" >conftest.sh
 echo  "exit 0"   >>conftest.sh
 chmod +x conftest.sh
-if { (echo "$as_me:986: PATH=\".;.\"; conftest.sh") >&5
+if { (echo "$as_me:1036: PATH=\".;.\"; conftest.sh") >&5
   (PATH=".;."; conftest.sh) 2>&5
   ac_status=$?
-  echo "$as_me:989: \$? = $ac_status" >&5
+  echo "$as_me:1039: \$? = $ac_status" >&5
   (exit $ac_status); }; then
   ac_path_separator=';'
 else
@@ -1016,7 +1066,7 @@ for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
   fi
 done
 if test -z "$ac_aux_dir"; then
-  { { echo "$as_me:1019: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&5
+  { { echo "$as_me:1069: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&5
 echo "$as_me: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&2;}
    { (exit 1); exit 1; }; }
 fi
@@ -1026,11 +1076,11 @@ ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
 
 # Make sure we can run config.sub.
 $ac_config_sub sun4 >/dev/null 2>&1 ||
-  { { echo "$as_me:1029: error: cannot run $ac_config_sub" >&5
+  { { echo "$as_me:1079: error: cannot run $ac_config_sub" >&5
 echo "$as_me: error: cannot run $ac_config_sub" >&2;}
    { (exit 1); exit 1; }; }
 
-echo "$as_me:1033: checking build system type" >&5
+echo "$as_me:1083: checking build system type" >&5
 echo $ECHO_N "checking build system type... $ECHO_C" >&6
 if test "${ac_cv_build+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1039,23 +1089,23 @@ else
 test -z "$ac_cv_build_alias" &&
   ac_cv_build_alias=`$ac_config_guess`
 test -z "$ac_cv_build_alias" &&
-  { { echo "$as_me:1042: error: cannot guess build type; you must specify one" >&5
+  { { echo "$as_me:1092: error: cannot guess build type; you must specify one" >&5
 echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
    { (exit 1); exit 1; }; }
 ac_cv_build=`$ac_config_sub $ac_cv_build_alias` ||
-  { { echo "$as_me:1046: error: $ac_config_sub $ac_cv_build_alias failed." >&5
+  { { echo "$as_me:1096: error: $ac_config_sub $ac_cv_build_alias failed." >&5
 echo "$as_me: error: $ac_config_sub $ac_cv_build_alias failed." >&2;}
    { (exit 1); exit 1; }; }
 
 fi
-echo "$as_me:1051: result: $ac_cv_build" >&5
+echo "$as_me:1101: result: $ac_cv_build" >&5
 echo "${ECHO_T}$ac_cv_build" >&6
 build=$ac_cv_build
 build_cpu=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
 build_vendor=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
 build_os=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 
-echo "$as_me:1058: checking host system type" >&5
+echo "$as_me:1108: checking host system type" >&5
 echo $ECHO_N "checking host system type... $ECHO_C" >&6
 if test "${ac_cv_host+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1064,12 +1114,12 @@ else
 test -z "$ac_cv_host_alias" &&
   ac_cv_host_alias=$ac_cv_build_alias
 ac_cv_host=`$ac_config_sub $ac_cv_host_alias` ||
-  { { echo "$as_me:1067: error: $ac_config_sub $ac_cv_host_alias failed" >&5
+  { { echo "$as_me:1117: error: $ac_config_sub $ac_cv_host_alias failed" >&5
 echo "$as_me: error: $ac_config_sub $ac_cv_host_alias failed" >&2;}
    { (exit 1); exit 1; }; }
 
 fi
-echo "$as_me:1072: result: $ac_cv_host" >&5
+echo "$as_me:1122: result: $ac_cv_host" >&5
 echo "${ECHO_T}$ac_cv_host" >&6
 host=$ac_cv_host
 host_cpu=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
@@ -1077,7 +1127,7 @@ host_vendor=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
 host_os=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 
 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
-	echo "$as_me:1080: checking target system type" >&5
+	echo "$as_me:1130: checking target system type" >&5
 echo $ECHO_N "checking target system type... $ECHO_C" >&6
 if test "${ac_cv_target+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1086,12 +1136,12 @@ else
 test "x$ac_cv_target_alias" = "x" &&
   ac_cv_target_alias=$ac_cv_host_alias
 ac_cv_target=`$ac_config_sub $ac_cv_target_alias` ||
-  { { echo "$as_me:1089: error: $ac_config_sub $ac_cv_target_alias failed" >&5
+  { { echo "$as_me:1139: error: $ac_config_sub $ac_cv_target_alias failed" >&5
 echo "$as_me: error: $ac_config_sub $ac_cv_target_alias failed" >&2;}
    { (exit 1); exit 1; }; }
 
 fi
-echo "$as_me:1094: result: $ac_cv_target" >&5
+echo "$as_me:1144: result: $ac_cv_target" >&5
 echo "${ECHO_T}$ac_cv_target" >&6
 target=$ac_cv_target
 target_cpu=`echo $ac_cv_target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
@@ -1123,13 +1173,13 @@ else
 fi
 
 test -z "$system_name" && system_name="$cf_cv_system_name"
-test -n "$cf_cv_system_name" && echo "$as_me:1126: result: Configuring for $cf_cv_system_name" >&5
+test -n "$cf_cv_system_name" && echo "$as_me:1176: result: Configuring for $cf_cv_system_name" >&5
 echo "${ECHO_T}Configuring for $cf_cv_system_name" >&6
 
 if test ".$system_name" != ".$cf_cv_system_name" ; then
-	echo "$as_me:1130: result: Cached system name ($system_name) does not agree with actual ($cf_cv_system_name)" >&5
+	echo "$as_me:1180: result: Cached system name ($system_name) does not agree with actual ($cf_cv_system_name)" >&5
 echo "${ECHO_T}Cached system name ($system_name) does not agree with actual ($cf_cv_system_name)" >&6
-	{ { echo "$as_me:1132: error: \"Please remove config.cache and try again.\"" >&5
+	{ { echo "$as_me:1182: error: \"Please remove config.cache and try again.\"" >&5
 echo "$as_me: error: \"Please remove config.cache and try again.\"" >&2;}
    { (exit 1); exit 1; }; }
 fi
@@ -1137,7 +1187,7 @@ fi
 # Check whether --with-system-type or --without-system-type was given.
 if test "${with_system_type+set}" = set; then
   withval="$with_system_type"
-  { echo "$as_me:1140: WARNING: overriding system type to $withval" >&5
+  { echo "$as_me:1190: WARNING: overriding system type to $withval" >&5
 echo "$as_me: WARNING: overriding system type to $withval" >&2;}
 	cf_cv_system_name=$withval
 	host_os=$withval
@@ -1149,23 +1199,23 @@ cf_user_CFLAGS="$CFLAGS"
 
 ###	Default install-location
 
-echo "$as_me:1152: checking for prefix" >&5
+echo "$as_me:1202: checking for prefix" >&5
 echo $ECHO_N "checking for prefix... $ECHO_C" >&6
 if test "x$prefix" = "xNONE" ; then
 	case "$cf_cv_system_name" in
 		# non-vendor systems don't have a conflict
-	openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
+	(openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
 		prefix=/usr
 		;;
-	*)	prefix=$ac_default_prefix
+	(*)	prefix=$ac_default_prefix
 		;;
 	esac
 fi
-echo "$as_me:1164: result: $prefix" >&5
+echo "$as_me:1214: result: $prefix" >&5
 echo "${ECHO_T}$prefix" >&6
 
 if test "x$prefix" = "xNONE" ; then
-echo "$as_me:1168: checking for default include-directory" >&5
+echo "$as_me:1218: checking for default include-directory" >&5
 echo $ECHO_N "checking for default include-directory... $ECHO_C" >&6
 test -n "$verbose" && echo 1>&6
 for cf_symbol in \
@@ -1188,7 +1238,7 @@ do
 	fi
 	test -n "$verbose"  && echo "	tested $cf_dir" 1>&6
 done
-echo "$as_me:1191: result: $includedir" >&5
+echo "$as_me:1241: result: $includedir" >&5
 echo "${ECHO_T}$includedir" >&6
 fi
 
@@ -1205,7 +1255,7 @@ if test -n "$ac_tool_prefix"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-echo "$as_me:1208: checking for $ac_word" >&5
+echo "$as_me:1258: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1220,7 +1270,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-echo "$as_me:1223: found $ac_dir/$ac_word" >&5
+echo "$as_me:1273: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -1228,10 +1278,10 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  echo "$as_me:1231: result: $CC" >&5
+  echo "$as_me:1281: result: $CC" >&5
 echo "${ECHO_T}$CC" >&6
 else
-  echo "$as_me:1234: result: no" >&5
+  echo "$as_me:1284: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1244,7 +1294,7 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "$as_me:1247: checking for $ac_word" >&5
+echo "$as_me:1297: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1259,7 +1309,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_ac_ct_CC="$ac_prog"
-echo "$as_me:1262: found $ac_dir/$ac_word" >&5
+echo "$as_me:1312: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -1267,10 +1317,10 @@ fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  echo "$as_me:1270: result: $ac_ct_CC" >&5
+  echo "$as_me:1320: result: $ac_ct_CC" >&5
 echo "${ECHO_T}$ac_ct_CC" >&6
 else
-  echo "$as_me:1273: result: no" >&5
+  echo "$as_me:1323: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -1280,36 +1330,36 @@ done
   CC=$ac_ct_CC
 fi
 
-test -z "$CC" && { { echo "$as_me:1283: error: no acceptable cc found in \$PATH" >&5
+test -z "$CC" && { { echo "$as_me:1333: error: no acceptable cc found in \$PATH" >&5
 echo "$as_me: error: no acceptable cc found in \$PATH" >&2;}
    { (exit 1); exit 1; }; }
 
 # Provide some information about the compiler.
-echo "$as_me:1288:" \
+echo "$as_me:1338:" \
      "checking for C compiler version" >&5
 ac_compiler=`set X $ac_compile; echo $2`
-{ (eval echo "$as_me:1291: \"$ac_compiler --version </dev/null >&5\"") >&5
+{ (eval echo "$as_me:1341: \"$ac_compiler --version </dev/null >&5\"") >&5
   (eval $ac_compiler --version </dev/null >&5) 2>&5
   ac_status=$?
-  echo "$as_me:1294: \$? = $ac_status" >&5
+  echo "$as_me:1344: \$? = $ac_status" >&5
   (exit $ac_status); }
-{ (eval echo "$as_me:1296: \"$ac_compiler -v </dev/null >&5\"") >&5
+{ (eval echo "$as_me:1346: \"$ac_compiler -v </dev/null >&5\"") >&5
   (eval $ac_compiler -v </dev/null >&5) 2>&5
   ac_status=$?
-  echo "$as_me:1299: \$? = $ac_status" >&5
+  echo "$as_me:1349: \$? = $ac_status" >&5
   (exit $ac_status); }
-{ (eval echo "$as_me:1301: \"$ac_compiler -V </dev/null >&5\"") >&5
+{ (eval echo "$as_me:1351: \"$ac_compiler -V </dev/null >&5\"") >&5
   (eval $ac_compiler -V </dev/null >&5) 2>&5
   ac_status=$?
-  echo "$as_me:1304: \$? = $ac_status" >&5
+  echo "$as_me:1354: \$? = $ac_status" >&5
   (exit $ac_status); }
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 1308 "configure"
+#line 1358 "configure"
 #include "confdefs.h"
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -1321,13 +1371,13 @@ ac_clean_files="$ac_clean_files a.out a.exe"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-echo "$as_me:1324: checking for C compiler default output" >&5
+echo "$as_me:1374: checking for C compiler default output" >&5
 echo $ECHO_N "checking for C compiler default output... $ECHO_C" >&6
 ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
-if { (eval echo "$as_me:1327: \"$ac_link_default\"") >&5
+if { (eval echo "$as_me:1377: \"$ac_link_default\"") >&5
   (eval $ac_link_default) 2>&5
   ac_status=$?
-  echo "$as_me:1330: \$? = $ac_status" >&5
+  echo "$as_me:1380: \$? = $ac_status" >&5
   (exit $ac_status); }; then
   # Find the output, starting from the most likely.  This scheme is
 # not robust to junk in `.', hence go to wildcards (a.*) only as a last
@@ -1350,34 +1400,34 @@ done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-{ { echo "$as_me:1353: error: C compiler cannot create executables" >&5
+{ { echo "$as_me:1403: error: C compiler cannot create executables" >&5
 echo "$as_me: error: C compiler cannot create executables" >&2;}
    { (exit 77); exit 77; }; }
 fi
 
 ac_exeext=$ac_cv_exeext
-echo "$as_me:1359: result: $ac_file" >&5
+echo "$as_me:1409: result: $ac_file" >&5
 echo "${ECHO_T}$ac_file" >&6
 
 # Check the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-echo "$as_me:1364: checking whether the C compiler works" >&5
+echo "$as_me:1414: checking whether the C compiler works" >&5
 echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6
 # FIXME: These cross compiler hacks should be removed for Autoconf 3.0
 # If not cross compiling, check that we can run a simple program.
 if test "$cross_compiling" != yes; then
   if { ac_try='./$ac_file'
-  { (eval echo "$as_me:1370: \"$ac_try\"") >&5
+  { (eval echo "$as_me:1420: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1373: \$? = $ac_status" >&5
+  echo "$as_me:1423: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
     cross_compiling=no
   else
     if test "$cross_compiling" = maybe; then
 	cross_compiling=yes
     else
-	{ { echo "$as_me:1380: error: cannot run C compiled programs.
+	{ { echo "$as_me:1430: error: cannot run C compiled programs.
 If you meant to cross compile, use \`--host'." >&5
 echo "$as_me: error: cannot run C compiled programs.
 If you meant to cross compile, use \`--host'." >&2;}
@@ -1385,24 +1435,24 @@ If you meant to cross compile, use \`--host'." >&2;}
     fi
   fi
 fi
-echo "$as_me:1388: result: yes" >&5
+echo "$as_me:1438: result: yes" >&5
 echo "${ECHO_T}yes" >&6
 
 rm -f a.out a.exe conftest$ac_cv_exeext
 ac_clean_files=$ac_clean_files_save
 # Check the compiler produces executables we can run.  If not, either
 # the compiler is broken, or we cross compile.
-echo "$as_me:1395: checking whether we are cross compiling" >&5
+echo "$as_me:1445: checking whether we are cross compiling" >&5
 echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
-echo "$as_me:1397: result: $cross_compiling" >&5
+echo "$as_me:1447: result: $cross_compiling" >&5
 echo "${ECHO_T}$cross_compiling" >&6
 
-echo "$as_me:1400: checking for executable suffix" >&5
+echo "$as_me:1450: checking for executable suffix" >&5
 echo $ECHO_N "checking for executable suffix... $ECHO_C" >&6
-if { (eval echo "$as_me:1402: \"$ac_link\"") >&5
+if { (eval echo "$as_me:1452: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:1405: \$? = $ac_status" >&5
+  echo "$as_me:1455: \$? = $ac_status" >&5
   (exit $ac_status); }; then
   # If both `conftest.exe' and `conftest' are `present' (well, observable)
 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
@@ -1418,29 +1468,29 @@ for ac_file in `(ls conftest.exe; ls conftest; ls conftest.*) 2>/dev/null`; do
   esac
 done
 else
-  { { echo "$as_me:1421: error: cannot compute EXEEXT: cannot compile and link" >&5
+  { { echo "$as_me:1471: error: cannot compute EXEEXT: cannot compile and link" >&5
 echo "$as_me: error: cannot compute EXEEXT: cannot compile and link" >&2;}
    { (exit 1); exit 1; }; }
 fi
 
 rm -f conftest$ac_cv_exeext
-echo "$as_me:1427: result: $ac_cv_exeext" >&5
+echo "$as_me:1477: result: $ac_cv_exeext" >&5
 echo "${ECHO_T}$ac_cv_exeext" >&6
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
 ac_exeext=$EXEEXT
-echo "$as_me:1433: checking for object suffix" >&5
+echo "$as_me:1483: checking for object suffix" >&5
 echo $ECHO_N "checking for object suffix... $ECHO_C" >&6
 if test "${ac_cv_objext+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 1439 "configure"
+#line 1489 "configure"
 #include "confdefs.h"
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -1448,10 +1498,10 @@ main ()
 }
 _ACEOF
 rm -f conftest.o conftest.obj
-if { (eval echo "$as_me:1451: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:1501: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1454: \$? = $ac_status" >&5
+  echo "$as_me:1504: \$? = $ac_status" >&5
   (exit $ac_status); }; then
   for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
   case $ac_file in
@@ -1463,28 +1513,28 @@ done
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-{ { echo "$as_me:1466: error: cannot compute OBJEXT: cannot compile" >&5
+{ { echo "$as_me:1516: error: cannot compute OBJEXT: cannot compile" >&5
 echo "$as_me: error: cannot compute OBJEXT: cannot compile" >&2;}
    { (exit 1); exit 1; }; }
 fi
 
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
-echo "$as_me:1473: result: $ac_cv_objext" >&5
+echo "$as_me:1523: result: $ac_cv_objext" >&5
 echo "${ECHO_T}$ac_cv_objext" >&6
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-echo "$as_me:1477: checking whether we are using the GNU C compiler" >&5
+echo "$as_me:1527: checking whether we are using the GNU C compiler" >&5
 echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
 if test "${ac_cv_c_compiler_gnu+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 1483 "configure"
+#line 1533 "configure"
 #include "confdefs.h"
 
 int
-main ()
+main (void)
 {
 #ifndef __GNUC__
        choke me
@@ -1495,16 +1545,16 @@ main ()
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1498: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:1548: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1501: \$? = $ac_status" >&5
+  echo "$as_me:1551: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1504: \"$ac_try\"") >&5
+  { (eval echo "$as_me:1554: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1507: \$? = $ac_status" >&5
+  echo "$as_me:1557: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_compiler_gnu=yes
 else
@@ -1516,23 +1566,23 @@ rm -f conftest.$ac_objext conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
-echo "$as_me:1519: result: $ac_cv_c_compiler_gnu" >&5
+echo "$as_me:1569: result: $ac_cv_c_compiler_gnu" >&5
 echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
 GCC=`test $ac_compiler_gnu = yes && echo yes`
 ac_test_CFLAGS=${CFLAGS+set}
 ac_save_CFLAGS=$CFLAGS
 CFLAGS="-g"
-echo "$as_me:1525: checking whether $CC accepts -g" >&5
+echo "$as_me:1575: checking whether $CC accepts -g" >&5
 echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
 if test "${ac_cv_prog_cc_g+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 1531 "configure"
+#line 1581 "configure"
 #include "confdefs.h"
 
 int
-main ()
+main (void)
 {
 
   ;
@@ -1540,16 +1590,16 @@ main ()
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1543: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:1593: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1546: \$? = $ac_status" >&5
+  echo "$as_me:1596: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1549: \"$ac_try\"") >&5
+  { (eval echo "$as_me:1599: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1552: \$? = $ac_status" >&5
+  echo "$as_me:1602: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_prog_cc_g=yes
 else
@@ -1559,7 +1609,7 @@ ac_cv_prog_cc_g=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:1562: result: $ac_cv_prog_cc_g" >&5
+echo "$as_me:1612: result: $ac_cv_prog_cc_g" >&5
 echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
 if test "$ac_test_CFLAGS" = set; then
   CFLAGS=$ac_save_CFLAGS
@@ -1586,16 +1636,16 @@ cat >conftest.$ac_ext <<_ACEOF
 #endif
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1589: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:1639: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1592: \$? = $ac_status" >&5
+  echo "$as_me:1642: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1595: \"$ac_try\"") >&5
+  { (eval echo "$as_me:1645: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1598: \$? = $ac_status" >&5
+  echo "$as_me:1648: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   for ac_declaration in \
    ''\
@@ -1607,12 +1657,12 @@ if { (eval echo "$as_me:1589: \"$ac_compile\"") >&5
    'void exit (int);'
 do
   cat >conftest.$ac_ext <<_ACEOF
-#line 1610 "configure"
+#line 1660 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 $ac_declaration
 int
-main ()
+main (void)
 {
 exit (42);
   ;
@@ -1620,16 +1670,16 @@ exit (42);
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1623: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:1673: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1626: \$? = $ac_status" >&5
+  echo "$as_me:1676: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1629: \"$ac_try\"") >&5
+  { (eval echo "$as_me:1679: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1632: \$? = $ac_status" >&5
+  echo "$as_me:1682: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   :
 else
@@ -1639,11 +1689,11 @@ continue
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
   cat >conftest.$ac_ext <<_ACEOF
-#line 1642 "configure"
+#line 1692 "configure"
 #include "confdefs.h"
 $ac_declaration
 int
-main ()
+main (void)
 {
 exit (42);
   ;
@@ -1651,16 +1701,16 @@ exit (42);
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1654: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:1704: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1657: \$? = $ac_status" >&5
+  echo "$as_me:1707: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1660: \"$ac_try\"") >&5
+  { (eval echo "$as_me:1710: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1663: \$? = $ac_status" >&5
+  echo "$as_me:1713: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   break
 else
@@ -1690,15 +1740,117 @@ ac_main_return=return
 
 GCC_VERSION=none
 if test "$GCC" = yes ; then
-	echo "$as_me:1693: checking version of $CC" >&5
+	echo "$as_me:1743: checking version of $CC" >&5
 echo $ECHO_N "checking version of $CC... $ECHO_C" >&6
 	GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[^)]*) //' -e 's/^.*(Debian[^)]*) //' -e 's/^[^0-9.]*//' -e 's/[^0-9.].*//'`"
 	test -z "$GCC_VERSION" && GCC_VERSION=unknown
-	echo "$as_me:1697: result: $GCC_VERSION" >&5
+	echo "$as_me:1747: result: $GCC_VERSION" >&5
 echo "${ECHO_T}$GCC_VERSION" >&6
 fi
 
-echo "$as_me:1701: checking for $CC option to accept ANSI C" >&5
+INTEL_COMPILER=no
+
+if test "$GCC" = yes ; then
+	case $host_os in
+	(linux*|gnu*)
+		echo "$as_me:1756: checking if this is really Intel C compiler" >&5
+echo $ECHO_N "checking if this is really Intel C compiler... $ECHO_C" >&6
+		cf_save_CFLAGS="$CFLAGS"
+		CFLAGS="$CFLAGS -no-gcc"
+		cat >conftest.$ac_ext <<_ACEOF
+#line 1761 "configure"
+#include "confdefs.h"
+
+int
+main (void)
+{
+
+#ifdef __INTEL_COMPILER
+#else
+make an error
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:1778: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:1781: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:1784: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:1787: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  INTEL_COMPILER=yes
+cf_save_CFLAGS="$cf_save_CFLAGS -we147"
+
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+		CFLAGS="$cf_save_CFLAGS"
+		echo "$as_me:1798: result: $INTEL_COMPILER" >&5
+echo "${ECHO_T}$INTEL_COMPILER" >&6
+		;;
+	esac
+fi
+
+CLANG_COMPILER=no
+
+if test "$GCC" = yes ; then
+	echo "$as_me:1807: checking if this is really Clang C compiler" >&5
+echo $ECHO_N "checking if this is really Clang C compiler... $ECHO_C" >&6
+	cf_save_CFLAGS="$CFLAGS"
+	CFLAGS="$CFLAGS -Qunused-arguments"
+	cat >conftest.$ac_ext <<_ACEOF
+#line 1812 "configure"
+#include "confdefs.h"
+
+int
+main (void)
+{
+
+#ifdef __clang__
+#else
+make an error
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:1829: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:1832: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:1835: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:1838: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  CLANG_COMPILER=yes
+cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
+
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+	CFLAGS="$cf_save_CFLAGS"
+	echo "$as_me:1849: result: $CLANG_COMPILER" >&5
+echo "${ECHO_T}$CLANG_COMPILER" >&6
+fi
+
+echo "$as_me:1853: checking for $CC option to accept ANSI C" >&5
 echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
 if test "${ac_cv_prog_cc_stdc+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -1706,7 +1858,7 @@ else
   ac_cv_prog_cc_stdc=no
 ac_save_CC=$CC
 cat >conftest.$ac_ext <<_ACEOF
-#line 1709 "configure"
+#line 1861 "configure"
 #include "confdefs.h"
 #include <stdarg.h>
 #include <stdio.h>
@@ -1737,7 +1889,7 @@ int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, i
 int argc;
 char **argv;
 int
-main ()
+main (void)
 {
 return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
   ;
@@ -1755,16 +1907,16 @@ for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIO
 do
   CC="$ac_save_CC $ac_arg"
   rm -f conftest.$ac_objext
-if { (eval echo "$as_me:1758: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:1910: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:1761: \$? = $ac_status" >&5
+  echo "$as_me:1913: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:1764: \"$ac_try\"") >&5
+  { (eval echo "$as_me:1916: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:1767: \$? = $ac_status" >&5
+  echo "$as_me:1919: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_prog_cc_stdc=$ac_arg
 break
@@ -1781,10 +1933,10 @@ fi
 
 case "x$ac_cv_prog_cc_stdc" in
   x|xno)
-    echo "$as_me:1784: result: none needed" >&5
+    echo "$as_me:1936: result: none needed" >&5
 echo "${ECHO_T}none needed" >&6 ;;
   *)
-    echo "$as_me:1787: result: $ac_cv_prog_cc_stdc" >&5
+    echo "$as_me:1939: result: $ac_cv_prog_cc_stdc" >&5
 echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
     CC="$CC $ac_cv_prog_cc_stdc" ;;
 esac
@@ -1792,52 +1944,182 @@ esac
 # This should have been defined by AC_PROG_CC
 : ${CC:=cc}
 
-echo "$as_me:1795: checking \$CC variable" >&5
+echo "$as_me:1947: checking \$CFLAGS variable" >&5
+echo $ECHO_N "checking \$CFLAGS variable... $ECHO_C" >&6
+case "x$CFLAGS" in
+(*-[IUD]*)
+	echo "$as_me:1951: result: broken" >&5
+echo "${ECHO_T}broken" >&6
+	{ echo "$as_me:1953: WARNING: your environment uses the CFLAGS variable to hold CPPFLAGS options" >&5
+echo "$as_me: WARNING: your environment uses the CFLAGS variable to hold CPPFLAGS options" >&2;}
+	cf_flags="$CFLAGS"
+	CFLAGS=
+	for cf_arg in $cf_flags
+	do
+
+cf_fix_cppflags=no
+cf_new_cflags=
+cf_new_cppflags=
+cf_new_extra_cppflags=
+
+for cf_add_cflags in $cf_arg
+do
+case $cf_fix_cppflags in
+(no)
+	case $cf_add_cflags in
+	(-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
+		case $cf_add_cflags in
+		(-D*)
+			cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[^=]*='\''\"[^"]*//'`
+
+			test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
+				&& test -z "${cf_tst_cflags}" \
+				&& cf_fix_cppflags=yes
+
+			if test $cf_fix_cppflags = yes ; then
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+				continue
+			elif test "${cf_tst_cflags}" = "\"'" ; then
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+				continue
+			fi
+			;;
+		esac
+		case "$CPPFLAGS" in
+		(*$cf_add_cflags)
+			;;
+		(*)
+			case $cf_add_cflags in
+			(-D*)
+				cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
+
+CPPFLAGS=`echo "$CPPFLAGS" | \
+	sed	-e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ 	]*\)\?[ 	]/ /g' \
+		-e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ 	]*\)\?$//g'`
+
+				;;
+			esac
+
+	test -n "$cf_new_cppflags" && cf_new_cppflags="$cf_new_cppflags "
+	cf_new_cppflags="${cf_new_cppflags}$cf_add_cflags"
+
+			;;
+		esac
+		;;
+	(*)
+
+	test -n "$cf_new_cflags" && cf_new_cflags="$cf_new_cflags "
+	cf_new_cflags="${cf_new_cflags}$cf_add_cflags"
+
+		;;
+	esac
+	;;
+(yes)
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+	cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[^"]*"'\''//'`
+
+	test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
+		&& test -z "${cf_tst_cflags}" \
+		&& cf_fix_cppflags=no
+	;;
+esac
+done
+
+if test -n "$cf_new_cflags" ; then
+
+	test -n "$CFLAGS" && CFLAGS="$CFLAGS "
+	CFLAGS="${CFLAGS}$cf_new_cflags"
+
+fi
+
+if test -n "$cf_new_cppflags" ; then
+
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}$cf_new_cppflags"
+
+fi
+
+if test -n "$cf_new_extra_cppflags" ; then
+
+	test -n "$EXTRA_CPPFLAGS" && EXTRA_CPPFLAGS="$EXTRA_CPPFLAGS "
+	EXTRA_CPPFLAGS="${EXTRA_CPPFLAGS}$cf_new_extra_cppflags"
+
+fi
+
+	done
+	;;
+(*)
+	echo "$as_me:2061: result: ok" >&5
+echo "${ECHO_T}ok" >&6
+	;;
+esac
+
+echo "$as_me:2066: checking \$CC variable" >&5
 echo $ECHO_N "checking \$CC variable... $ECHO_C" >&6
-case "$CC" in #(vi
-*[\ \	]-[IUD]*)
-	echo "$as_me:1799: result: broken" >&5
+case "$CC" in
+(*[\ \	]-*)
+	echo "$as_me:2070: result: broken" >&5
 echo "${ECHO_T}broken" >&6
-	{ echo "$as_me:1801: WARNING: your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options" >&5
-echo "$as_me: WARNING: your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options" >&2;}
+	{ echo "$as_me:2072: WARNING: your environment uses the CC variable to hold CFLAGS/CPPFLAGS options" >&5
+echo "$as_me: WARNING: your environment uses the CC variable to hold CFLAGS/CPPFLAGS options" >&2;}
 	# humor him...
-	cf_flags=`echo "$CC" | sed -e 's/^[^ 	]*[ 	]//'`
-	CC=`echo "$CC" | sed -e 's/[ 	].*//'`
+	cf_prog=`echo "$CC" | sed -e 's/	/ /g' -e 's/[ ]* / /g' -e 's/[ ]*[ ]-[^ ].*//'`
+	cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", substr($0,1+length(prog))); }'`
+	CC="$cf_prog"
+	for cf_arg in $cf_flags
+	do
+		case "x$cf_arg" in
+		(x-[IUDfgOW]*)
 
 cf_fix_cppflags=no
 cf_new_cflags=
 cf_new_cppflags=
 cf_new_extra_cppflags=
 
-for cf_add_cflags in $cf_flags
+for cf_add_cflags in $cf_arg
 do
 case $cf_fix_cppflags in
-no)
-	case $cf_add_cflags in #(vi
-	-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi
+(no)
+	case $cf_add_cflags in
+	(-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
 		case $cf_add_cflags in
-		-D*)
+		(-D*)
 			cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[^=]*='\''\"[^"]*//'`
 
-			test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+			test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 				&& test -z "${cf_tst_cflags}" \
 				&& cf_fix_cppflags=yes
 
 			if test $cf_fix_cppflags = yes ; then
-				cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
 				continue
 			elif test "${cf_tst_cflags}" = "\"'" ; then
-				cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
 				continue
 			fi
 			;;
 		esac
 		case "$CPPFLAGS" in
-		*$cf_add_cflags) #(vi
+		(*$cf_add_cflags)
 			;;
-		*) #(vi
-			case $cf_add_cflags in #(vi
-			-D*)
+		(*)
+			case $cf_add_cflags in
+			(-D*)
 				cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
 
 CPPFLAGS=`echo "$CPPFLAGS" | \
@@ -1846,21 +2128,29 @@ CPPFLAGS=`echo "$CPPFLAGS" | \
 
 				;;
 			esac
-			cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
+
+	test -n "$cf_new_cppflags" && cf_new_cppflags="$cf_new_cppflags "
+	cf_new_cppflags="${cf_new_cppflags}$cf_add_cflags"
+
 			;;
 		esac
 		;;
-	*)
-		cf_new_cflags="$cf_new_cflags $cf_add_cflags"
+	(*)
+
+	test -n "$cf_new_cflags" && cf_new_cflags="$cf_new_cflags "
+	cf_new_cflags="${cf_new_cflags}$cf_add_cflags"
+
 		;;
 	esac
 	;;
-yes)
-	cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
+(yes)
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
 
 	cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[^"]*"'\''//'`
 
-	test "${cf_add_cflags}" != "${cf_tst_cflags}" \
+	test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
 		&& test -z "${cf_tst_cflags}" \
 		&& cf_fix_cppflags=no
 	;;
@@ -1869,22 +2159,46 @@ done
 
 if test -n "$cf_new_cflags" ; then
 
-	CFLAGS="$CFLAGS $cf_new_cflags"
+	test -n "$CFLAGS" && CFLAGS="$CFLAGS "
+	CFLAGS="${CFLAGS}$cf_new_cflags"
+
 fi
 
 if test -n "$cf_new_cppflags" ; then
 
-	CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}$cf_new_cppflags"
+
 fi
 
 if test -n "$cf_new_extra_cppflags" ; then
 
-	EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
+	test -n "$EXTRA_CPPFLAGS" && EXTRA_CPPFLAGS="$EXTRA_CPPFLAGS "
+	EXTRA_CPPFLAGS="${EXTRA_CPPFLAGS}$cf_new_extra_cppflags"
+
 fi
 
+			;;
+		(*)
+			CC="$CC $cf_arg"
+			;;
+		esac
+	done
+	test -n "$verbose" && echo "	resulting CC: '$CC'" 1>&6
+
+echo "${as_me:-configure}:2189: testing resulting CC: '$CC' ..." 1>&5
+
+	test -n "$verbose" && echo "	resulting CFLAGS: '$CFLAGS'" 1>&6
+
+echo "${as_me:-configure}:2193: testing resulting CFLAGS: '$CFLAGS' ..." 1>&5
+
+	test -n "$verbose" && echo "	resulting CPPFLAGS: '$CPPFLAGS'" 1>&6
+
+echo "${as_me:-configure}:2197: testing resulting CPPFLAGS: '$CPPFLAGS' ..." 1>&5
+
 	;;
-*)
-	echo "$as_me:1887: result: ok" >&5
+(*)
+	echo "$as_me:2201: result: ok" >&5
 echo "${ECHO_T}ok" >&6
 	;;
 esac
@@ -1895,7 +2209,7 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 ac_main_return=return
-echo "$as_me:1898: checking how to run the C preprocessor" >&5
+echo "$as_me:2212: checking how to run the C preprocessor" >&5
 echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
@@ -1916,18 +2230,18 @@ do
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat >conftest.$ac_ext <<_ACEOF
-#line 1919 "configure"
+#line 2233 "configure"
 #include "confdefs.h"
 #include <assert.h>
                      Syntax error
 _ACEOF
-if { (eval echo "$as_me:1924: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:2238: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:1930: \$? = $ac_status" >&5
+  echo "$as_me:2244: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -1950,17 +2264,17 @@ rm -f conftest.err conftest.$ac_ext
   # OK, works on sane cases.  Now check whether non-existent headers
   # can be detected and how.
   cat >conftest.$ac_ext <<_ACEOF
-#line 1953 "configure"
+#line 2267 "configure"
 #include "confdefs.h"
 #include <ac_nonexistent.h>
 _ACEOF
-if { (eval echo "$as_me:1957: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:2271: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:1963: \$? = $ac_status" >&5
+  echo "$as_me:2277: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -1997,7 +2311,7 @@ fi
 else
   ac_cv_prog_CPP=$CPP
 fi
-echo "$as_me:2000: result: $CPP" >&5
+echo "$as_me:2314: result: $CPP" >&5
 echo "${ECHO_T}$CPP" >&6
 ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
@@ -2007,18 +2321,18 @@ do
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
   cat >conftest.$ac_ext <<_ACEOF
-#line 2010 "configure"
+#line 2324 "configure"
 #include "confdefs.h"
 #include <assert.h>
                      Syntax error
 _ACEOF
-if { (eval echo "$as_me:2015: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:2329: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:2021: \$? = $ac_status" >&5
+  echo "$as_me:2335: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -2041,17 +2355,17 @@ rm -f conftest.err conftest.$ac_ext
   # OK, works on sane cases.  Now check whether non-existent headers
   # can be detected and how.
   cat >conftest.$ac_ext <<_ACEOF
-#line 2044 "configure"
+#line 2358 "configure"
 #include "confdefs.h"
 #include <ac_nonexistent.h>
 _ACEOF
-if { (eval echo "$as_me:2048: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:2362: \"$ac_cpp conftest.$ac_ext\"") >&5
   (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
   ac_status=$?
   egrep -v '^ *\+' conftest.er1 >conftest.err
   rm -f conftest.er1
   cat conftest.err >&5
-  echo "$as_me:2054: \$? = $ac_status" >&5
+  echo "$as_me:2368: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -2079,7 +2393,7 @@ rm -f conftest.err conftest.$ac_ext
 if $ac_preproc_ok; then
   :
 else
-  { { echo "$as_me:2082: error: C preprocessor \"$CPP\" fails sanity check" >&5
+  { { echo "$as_me:2396: error: C preprocessor \"$CPP\" fails sanity check" >&5
 echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check" >&2;}
    { (exit 1); exit 1; }; }
 fi
@@ -2092,14 +2406,14 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 ac_main_return=return
 
 if test $ac_cv_c_compiler_gnu = yes; then
-    echo "$as_me:2095: checking whether $CC needs -traditional" >&5
+    echo "$as_me:2409: checking whether $CC needs -traditional" >&5
 echo $ECHO_N "checking whether $CC needs -traditional... $ECHO_C" >&6
 if test "${ac_cv_prog_gcc_traditional+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
     ac_pattern="Autoconf.*'x'"
   cat >conftest.$ac_ext <<_ACEOF
-#line 2102 "configure"
+#line 2416 "configure"
 #include "confdefs.h"
 #include <sgtty.h>
 int Autoconf = TIOCGETP;
@@ -2114,7 +2428,7 @@ rm -rf conftest*
 
   if test $ac_cv_prog_gcc_traditional = no; then
     cat >conftest.$ac_ext <<_ACEOF
-#line 2117 "configure"
+#line 2431 "configure"
 #include "confdefs.h"
 #include <termio.h>
 int Autoconf = TCGETA;
@@ -2127,38 +2441,37 @@ rm -rf conftest*
 
   fi
 fi
-echo "$as_me:2130: result: $ac_cv_prog_gcc_traditional" >&5
+echo "$as_me:2444: result: $ac_cv_prog_gcc_traditional" >&5
 echo "${ECHO_T}$ac_cv_prog_gcc_traditional" >&6
   if test $ac_cv_prog_gcc_traditional = yes; then
     CC="$CC -traditional"
   fi
 fi
 
-echo "$as_me:2137: checking whether $CC understands -c and -o together" >&5
+echo "$as_me:2451: checking whether $CC understands -c and -o together" >&5
 echo $ECHO_N "checking whether $CC understands -c and -o together... $ECHO_C" >&6
 if test "${cf_cv_prog_CC_c_o+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 cat > conftest.$ac_ext <<CF_EOF
-#include <stdio.h>
-int main()
+int main(void)
 {
 	${cf_cv_main_return:-return}(0);
 }
 CF_EOF
 # We do the test twice because some compilers refuse to overwrite an
 # existing .o file with -o, though they will create one.
-ac_try='$CC -c conftest.$ac_ext -o conftest2.$ac_objext >&5'
-if { (eval echo "$as_me:2153: \"$ac_try\"") >&5
+ac_try='$CC $CFLAGS $CPPFLAGS -c conftest.$ac_ext -o conftest2.$ac_objext >&5'
+if { (eval echo "$as_me:2466: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2156: \$? = $ac_status" >&5
+  echo "$as_me:2469: \$? = $ac_status" >&5
   (exit $ac_status); } &&
-  test -f conftest2.$ac_objext && { (eval echo "$as_me:2158: \"$ac_try\"") >&5
+  test -f conftest2.$ac_objext && { (eval echo "$as_me:2471: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2161: \$? = $ac_status" >&5
+  echo "$as_me:2474: \$? = $ac_status" >&5
   (exit $ac_status); };
 then
   eval cf_cv_prog_CC_c_o=yes
@@ -2169,10 +2482,10 @@ rm -rf conftest*
 
 fi
 if test $cf_cv_prog_CC_c_o = yes; then
-  echo "$as_me:2172: result: yes" >&5
+  echo "$as_me:2485: result: yes" >&5
 echo "${ECHO_T}yes" >&6
 else
-  echo "$as_me:2175: result: no" >&5
+  echo "$as_me:2488: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2193,7 +2506,7 @@ for ac_prog in mawk gawk nawk awk
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "$as_me:2196: checking for $ac_word" >&5
+echo "$as_me:2509: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_AWK+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2208,7 +2521,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_AWK="$ac_prog"
-echo "$as_me:2211: found $ac_dir/$ac_word" >&5
+echo "$as_me:2524: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -2216,35 +2529,35 @@ fi
 fi
 AWK=$ac_cv_prog_AWK
 if test -n "$AWK"; then
-  echo "$as_me:2219: result: $AWK" >&5
+  echo "$as_me:2532: result: $AWK" >&5
 echo "${ECHO_T}$AWK" >&6
 else
-  echo "$as_me:2222: result: no" >&5
+  echo "$as_me:2535: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
   test -n "$AWK" && break
 done
 
-test -z "$AWK" && { { echo "$as_me:2229: error: No awk program found" >&5
+test -z "$AWK" && { { echo "$as_me:2542: error: No awk program found" >&5
 echo "$as_me: error: No awk program found" >&2;}
    { (exit 1); exit 1; }; }
 
-echo "$as_me:2233: checking for egrep" >&5
+echo "$as_me:2546: checking for egrep" >&5
 echo $ECHO_N "checking for egrep... $ECHO_C" >&6
 if test "${ac_cv_prog_egrep+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   if echo a | (grep -E '(a|b)') >/dev/null 2>&1
-    then ac_cv_prog_egrep='grep -E'
-    else ac_cv_prog_egrep='egrep'
-    fi
+		then ac_cv_prog_egrep='grep -E'
+		else ac_cv_prog_egrep='egrep'
+	fi
 fi
-echo "$as_me:2243: result: $ac_cv_prog_egrep" >&5
+echo "$as_me:2556: result: $ac_cv_prog_egrep" >&5
 echo "${ECHO_T}$ac_cv_prog_egrep" >&6
- EGREP=$ac_cv_prog_egrep
+	EGREP=$ac_cv_prog_egrep
 
-test -z "$EGREP" && { { echo "$as_me:2247: error: No egrep program found" >&5
+	test -z "$EGREP" && { { echo "$as_me:2560: error: No egrep program found" >&5
 echo "$as_me: error: No egrep program found" >&2;}
    { (exit 1); exit 1; }; }
 
@@ -2260,7 +2573,7 @@ echo "$as_me: error: No egrep program found" >&2;}
 # AFS /usr/afsws/bin/install, which mishandles nonexistent args
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
-echo "$as_me:2263: checking for a BSD compatible install" >&5
+echo "$as_me:2576: checking for a BSD compatible install" >&5
 echo $ECHO_N "checking for a BSD compatible install... $ECHO_C" >&6
 if test -z "$INSTALL"; then
 if test "${ac_cv_path_install+set}" = set; then
@@ -2309,7 +2622,7 @@ fi
     INSTALL=$ac_install_sh
   fi
 fi
-echo "$as_me:2312: result: $INSTALL" >&5
+echo "$as_me:2625: result: $INSTALL" >&5
 echo "${ECHO_T}$INSTALL" >&6
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
@@ -2320,18 +2633,18 @@ test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
 
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
-echo "$as_me:2323: checking whether ln -s works" >&5
+echo "$as_me:2636: checking whether ln -s works" >&5
 echo $ECHO_N "checking whether ln -s works... $ECHO_C" >&6
 LN_S=$as_ln_s
 if test "$LN_S" = "ln -s"; then
-  echo "$as_me:2327: result: yes" >&5
+  echo "$as_me:2640: result: yes" >&5
 echo "${ECHO_T}yes" >&6
 else
-  echo "$as_me:2330: result: no, using $LN_S" >&5
+  echo "$as_me:2643: result: no, using $LN_S" >&5
 echo "${ECHO_T}no, using $LN_S" >&6
 fi
 
-echo "$as_me:2334: checking if $LN_S -f options work" >&5
+echo "$as_me:2647: checking if $LN_S -f options work" >&5
 echo $ECHO_N "checking if $LN_S -f options work... $ECHO_C" >&6
 
 rm -f conf$$.src conf$$dst
@@ -2343,12 +2656,176 @@ else
 	cf_prog_ln_sf=no
 fi
 rm -f conf$$.dst conf$$src
-echo "$as_me:2346: result: $cf_prog_ln_sf" >&5
+echo "$as_me:2659: result: $cf_prog_ln_sf" >&5
 echo "${ECHO_T}$cf_prog_ln_sf" >&6
 
 test "$cf_prog_ln_sf" = yes && LN_S="$LN_S -f"
 
-echo "$as_me:2351: checking for long file names" >&5
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# ./install, which can be erroneously created by make from ./install.sh.
+echo "$as_me:2676: checking for a BSD compatible install" >&5
+echo $ECHO_N "checking for a BSD compatible install... $ECHO_C" >&6
+if test -z "$INSTALL"; then
+if test "${ac_cv_path_install+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+    ac_save_IFS=$IFS; IFS=$ac_path_separator
+  for ac_dir in $PATH; do
+    IFS=$ac_save_IFS
+    # Account for people who put trailing slashes in PATH elements.
+    case $ac_dir/ in
+    / | ./ | .// | /cC/* \
+    | /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* \
+    | /usr/ucb/* ) ;;
+    *)
+      # OSF1 and SCO ODT 3.0 have their own names for install.
+      # Don't use installbsd from OSF since it installs stuff as root
+      # by default.
+      for ac_prog in ginstall scoinst install; do
+        if $as_executable_p "$ac_dir/$ac_prog"; then
+	  if test $ac_prog = install &&
+            grep dspmsg "$ac_dir/$ac_prog" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$ac_dir/$ac_prog" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    ac_cv_path_install="$ac_dir/$ac_prog -c"
+	    break 2
+	  fi
+	fi
+      done
+      ;;
+    esac
+  done
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  We don't cache a
+    # path for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the path is relative.
+    INSTALL=$ac_install_sh
+  fi
+fi
+echo "$as_me:2725: result: $INSTALL" >&5
+echo "${ECHO_T}$INSTALL" >&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+case $INSTALL in
+(/*)
+	;;
+(*)
+	cf_dir=`echo $INSTALL | sed -e 's%/[^/]*$%%'`
+	test -z "$cf_dir" && cf_dir=.
+	INSTALL=`cd $cf_dir && pwd`/`echo $INSTALL | sed -e 's%^.*/%%'`
+	;;
+esac
+
+echo "$as_me:2746: checking if you want to install stripped executables" >&5
+echo $ECHO_N "checking if you want to install stripped executables... $ECHO_C" >&6
+
+# Check whether --enable-stripping or --disable-stripping was given.
+if test "${enable_stripping+set}" = set; then
+  enableval="$enable_stripping"
+  test "$enableval" != no && enableval=yes
+	if test "$enableval" != "yes" ; then
+    with_stripping=no
+	else
+		with_stripping=yes
+	fi
+else
+  enableval=yes
+	with_stripping=yes
+
+fi;
+echo "$as_me:2763: result: $with_stripping" >&5
+echo "${ECHO_T}$with_stripping" >&6
+
+if test "$with_stripping" = yes
+then
+	INSTALL_OPT_S="-s"
+else
+	INSTALL_OPT_S=
+fi
+
+: ${INSTALL:=install}
+echo "$as_me:2774: checking if install accepts -p option" >&5
+echo $ECHO_N "checking if install accepts -p option... $ECHO_C" >&6
+if test "${cf_cv_install_p+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+	rm -rf conftest*
+	date >conftest.in
+	mkdir conftest.out
+	sleep 3
+	if $INSTALL -p conftest.in conftest.out 2>/dev/null
+	then
+		if test -f conftest.out/conftest.in
+		then
+			test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
+			test conftest.out/conftest.in -nt conftest.in 2>conftest.err
+			if test -s conftest.err
+			then
+				cf_cv_install_p=no
+			else
+				cf_cv_install_p=yes
+			fi
+		else
+			cf_cv_install_p=no
+		fi
+	else
+		cf_cv_install_p=no
+	fi
+	rm -rf conftest*
+
+fi
+echo "$as_me:2805: result: $cf_cv_install_p" >&5
+echo "${ECHO_T}$cf_cv_install_p" >&6
+
+echo "$as_me:2808: checking if install needs to be told about ownership" >&5
+echo $ECHO_N "checking if install needs to be told about ownership... $ECHO_C" >&6
+case `$ac_config_guess` in
+(*minix)
+	with_install_o=yes
+	;;
+(*)
+	with_install_o=no
+	;;
+esac
+
+echo "$as_me:2819: result: $with_install_o" >&5
+echo "${ECHO_T}$with_install_o" >&6
+if test "x$with_install_o" = xyes
+then
+	INSTALL_OPT_O=`id root|sed -e 's/uid=[0-9]*(/ -o /' -e 's/gid=[0-9]*(/ -g /' -e 's/ [^=[:space:]][^=[:space:]]*=.*/ /' -e 's/)//g'`
+else
+	INSTALL_OPT_O=
+fi
+
+echo "$as_me:2828: checking for long file names" >&5
 echo $ECHO_N "checking for long file names... $ECHO_C" >&6
 if test "${ac_cv_sys_long_file_names+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2387,7 +2864,7 @@ for ac_dir in  . $ac_tmpdirs `eval echo $prefix/lib $exec_prefix/lib` ; do
   rm -rf $ac_xdir 2>/dev/null
 done
 fi
-echo "$as_me:2390: result: $ac_cv_sys_long_file_names" >&5
+echo "$as_me:2867: result: $ac_cv_sys_long_file_names" >&5
 echo "${ECHO_T}$ac_cv_sys_long_file_names" >&6
 if test $ac_cv_sys_long_file_names = yes; then
 
@@ -2399,7 +2876,7 @@ fi
 
 # if we find pkg-config, check if we should install the ".pc" files.
 
-echo "$as_me:2402: checking if you want to use pkg-config" >&5
+echo "$as_me:2879: checking if you want to use pkg-config" >&5
 echo $ECHO_N "checking if you want to use pkg-config... $ECHO_C" >&6
 
 # Check whether --with-pkg-config or --without-pkg-config was given.
@@ -2409,19 +2886,19 @@ if test "${with_pkg_config+set}" = set; then
 else
   cf_pkg_config=yes
 fi;
-echo "$as_me:2412: result: $cf_pkg_config" >&5
+echo "$as_me:2889: result: $cf_pkg_config" >&5
 echo "${ECHO_T}$cf_pkg_config" >&6
 
-case $cf_pkg_config in #(vi
-no) #(vi
+case $cf_pkg_config in
+(no)
 	PKG_CONFIG=none
 	;;
-yes) #(vi
+(yes)
 
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
 set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-echo "$as_me:2424: checking for $ac_word" >&5
+echo "$as_me:2901: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_path_PKG_CONFIG+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2438,7 +2915,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   if $as_executable_p "$ac_dir/$ac_word"; then
    ac_cv_path_PKG_CONFIG="$ac_dir/$ac_word"
-   echo "$as_me:2441: found $ac_dir/$ac_word" >&5
+   echo "$as_me:2918: found $ac_dir/$ac_word" >&5
    break
 fi
 done
@@ -2449,10 +2926,10 @@ fi
 PKG_CONFIG=$ac_cv_path_PKG_CONFIG
 
 if test -n "$PKG_CONFIG"; then
-  echo "$as_me:2452: result: $PKG_CONFIG" >&5
+  echo "$as_me:2929: result: $PKG_CONFIG" >&5
 echo "${ECHO_T}$PKG_CONFIG" >&6
 else
-  echo "$as_me:2455: result: no" >&5
+  echo "$as_me:2932: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2461,7 +2938,7 @@ if test -z "$ac_cv_path_PKG_CONFIG"; then
   ac_pt_PKG_CONFIG=$PKG_CONFIG
   # Extract the first word of "pkg-config", so it can be a program name with args.
 set dummy pkg-config; ac_word=$2
-echo "$as_me:2464: checking for $ac_word" >&5
+echo "$as_me:2941: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2478,7 +2955,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   if $as_executable_p "$ac_dir/$ac_word"; then
    ac_cv_path_ac_pt_PKG_CONFIG="$ac_dir/$ac_word"
-   echo "$as_me:2481: found $ac_dir/$ac_word" >&5
+   echo "$as_me:2958: found $ac_dir/$ac_word" >&5
    break
 fi
 done
@@ -2490,10 +2967,10 @@ fi
 ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
 
 if test -n "$ac_pt_PKG_CONFIG"; then
-  echo "$as_me:2493: result: $ac_pt_PKG_CONFIG" >&5
+  echo "$as_me:2970: result: $ac_pt_PKG_CONFIG" >&5
 echo "${ECHO_T}$ac_pt_PKG_CONFIG" >&6
 else
-  echo "$as_me:2496: result: no" >&5
+  echo "$as_me:2973: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2503,7 +2980,7 @@ else
 fi
 
 	;;
-*)
+(*)
 	PKG_CONFIG=$withval
 	;;
 esac
@@ -2512,133 +2989,129 @@ test -z "$PKG_CONFIG" && PKG_CONFIG=none
 if test "$PKG_CONFIG" != none ; then
 
 if test "x$prefix" != xNONE; then
-  cf_path_syntax="$prefix"
+	cf_path_syntax="$prefix"
 else
-  cf_path_syntax="$ac_default_prefix"
+	cf_path_syntax="$ac_default_prefix"
 fi
 
-case ".$PKG_CONFIG" in #(vi
-.\$\(*\)*|.\'*\'*) #(vi
-  ;;
-..|./*|.\\*) #(vi
-  ;;
-.[a-zA-Z]:[\\/]*) #(vi OS/2 EMX
-  ;;
-.\${*prefix}*|.\${*dir}*) #(vi
-  eval PKG_CONFIG="$PKG_CONFIG"
-  case ".$PKG_CONFIG" in #(vi
-  .NONE/*)
-    PKG_CONFIG=`echo $PKG_CONFIG | sed -e s%NONE%$cf_path_syntax%`
-    ;;
-  esac
-  ;; #(vi
-.no|.NONE/*)
-  PKG_CONFIG=`echo $PKG_CONFIG | sed -e s%NONE%$cf_path_syntax%`
-  ;;
-*)
-  { { echo "$as_me:2539: error: expected a pathname, not \"$PKG_CONFIG\"" >&5
+case ".$PKG_CONFIG" in
+(.\$\(*\)*|.\'*\'*)
+	;;
+(..|./*|.\\*)
+	;;
+(.[a-zA-Z]:[\\/]*) # OS/2 EMX
+	;;
+(.\${*prefix}*|.\${*dir}*)
+	eval PKG_CONFIG="$PKG_CONFIG"
+	case ".$PKG_CONFIG" in
+	(.NONE/*)
+		PKG_CONFIG=`echo $PKG_CONFIG | sed -e s%NONE%$cf_path_syntax%`
+		;;
+	esac
+	;;
+(.no|.NONE/*)
+	PKG_CONFIG=`echo $PKG_CONFIG | sed -e s%NONE%$cf_path_syntax%`
+	;;
+(*)
+	{ { echo "$as_me:3016: error: expected a pathname, not \"$PKG_CONFIG\"" >&5
 echo "$as_me: error: expected a pathname, not \"$PKG_CONFIG\"" >&2;}
    { (exit 1); exit 1; }; }
-  ;;
+	;;
 esac
 
+elif test "x$cf_pkg_config" != xno ; then
+	{ echo "$as_me:3023: WARNING: pkg-config is not installed" >&5
+echo "$as_me: WARNING: pkg-config is not installed" >&2;}
 fi
 
-if test "$PKG_CONFIG" != none ; then
-	echo "$as_me:2548: checking for $PKG_CONFIG library directory" >&5
+case $PKG_CONFIG in
+(no|none|yes)
+	echo "$as_me:3029: checking for pkg-config library directory" >&5
+echo $ECHO_N "checking for pkg-config library directory... $ECHO_C" >&6
+	;;
+(*)
+	echo "$as_me:3033: checking for $PKG_CONFIG library directory" >&5
 echo $ECHO_N "checking for $PKG_CONFIG library directory... $ECHO_C" >&6
+	;;
+esac
+
+PKG_CONFIG_LIBDIR=no
 
 # Check whether --with-pkg-config-libdir or --without-pkg-config-libdir was given.
 if test "${with_pkg_config_libdir+set}" = set; then
   withval="$with_pkg_config_libdir"
   PKG_CONFIG_LIBDIR=$withval
 else
-  PKG_CONFIG_LIBDIR=yes
+  test "x$PKG_CONFIG" != xnone && PKG_CONFIG_LIBDIR=yes
 fi;
 
-	case x$PKG_CONFIG_LIBDIR in #(vi
-	x/*) #(vi
-		;;
-	xyes) #(vi
-		# look for the library directory using the same prefix as the executable
+case x$PKG_CONFIG_LIBDIR in
+(x/*)
+	;;
+(xyes)
+	# Look for the library directory using the same prefix as the executable
+	if test "x$PKG_CONFIG" = xnone
+	then
+		cf_path=$prefix
+	else
 		cf_path=`echo "$PKG_CONFIG" | sed -e 's,/[^/]*/[^/]*$,,'`
-		case x`(arch) 2>/dev/null` in #(vi
-		*64) #(vi
-			for cf_config in $cf_path/share $cf_path/lib64 $cf_path/lib32 $cf_path/lib
-			do
-				if test -d $cf_config/pkgconfig
-				then
-					PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
-					break
-				fi
-			done
-			;;
-		*)
-			PKG_CONFIG_LIBDIR=$cf_path/lib/pkgconfig
-			;;
-		esac
+	fi
+
+	# If you don't like using the default architecture, you have to specify the
+	# intended library directory and corresponding compiler/linker options.
+	#
+	# This case allows for Debian's 2014-flavor of multiarch, along with the
+	# most common variations before that point.  Some other variants spell the
+	# directory differently, e.g., "pkg-config", and put it in unusual places.
+	# pkg-config has always been poorly standardized, which is ironic...
+	case x`(arch) 2>/dev/null` in
+	(*64)
+		cf_search_path="\
+			$cf_path/lib/*64-linux-gnu \
+			$cf_path/share \
+			$cf_path/lib64 \
+			$cf_path/lib32 \
+			$cf_path/lib"
 		;;
-	*)
+	(*)
+		cf_search_path="\
+			$cf_path/lib/*-linux-gnu \
+			$cf_path/share \
+			$cf_path/lib32 \
+			$cf_path/lib \
+			$cf_path/libdata"
 		;;
 	esac
 
-	echo "$as_me:2585: result: $PKG_CONFIG_LIBDIR" >&5
-echo "${ECHO_T}$PKG_CONFIG_LIBDIR" >&6
-fi
+	test -n "$verbose" && echo "	list..." 1>&6
 
-if test "$PKG_CONFIG" != none ; then
-	echo "$as_me:2590: checking if we should install .pc files for $PKG_CONFIG" >&5
-echo $ECHO_N "checking if we should install .pc files for $PKG_CONFIG... $ECHO_C" >&6
+echo "${as_me:-configure}:3088: testing list... ..." 1>&5
 
-# Check whether --enable-pc-files or --disable-pc-files was given.
-if test "${enable_pc_files+set}" = set; then
-  enableval="$enable_pc_files"
-  enable_pc_files=$enableval
-else
-  enable_pc_files=no
-fi;
-	echo "$as_me:2600: result: $enable_pc_files" >&5
-echo "${ECHO_T}$enable_pc_files" >&6
-	if test "$enable_pc_files" != no
-	then
+	for cf_config in $cf_search_path
+	do
+		test -n "$verbose" && echo "	checking $cf_config/pkgconfig" 1>&6
 
-if test "x$prefix" != xNONE; then
-  cf_path_syntax="$prefix"
-else
-  cf_path_syntax="$ac_default_prefix"
-fi
+echo "${as_me:-configure}:3094: testing checking $cf_config/pkgconfig ..." 1>&5
 
-case ".$PKG_CONFIG_LIBDIR" in #(vi
-.\$\(*\)*|.\'*\'*) #(vi
-  ;;
-..|./*|.\\*) #(vi
-  ;;
-.[a-zA-Z]:[\\/]*) #(vi OS/2 EMX
-  ;;
-.\${*prefix}*|.\${*dir}*) #(vi
-  eval PKG_CONFIG_LIBDIR="$PKG_CONFIG_LIBDIR"
-  case ".$PKG_CONFIG_LIBDIR" in #(vi
-  .NONE/*)
-    PKG_CONFIG_LIBDIR=`echo $PKG_CONFIG_LIBDIR | sed -e s%NONE%$cf_path_syntax%`
-    ;;
-  esac
-  ;; #(vi
-.no|.NONE/*)
-  PKG_CONFIG_LIBDIR=`echo $PKG_CONFIG_LIBDIR | sed -e s%NONE%$cf_path_syntax%`
-  ;;
-*)
-  { { echo "$as_me:2630: error: expected a pathname, not \"$PKG_CONFIG_LIBDIR\"" >&5
-echo "$as_me: error: expected a pathname, not \"$PKG_CONFIG_LIBDIR\"" >&2;}
-   { (exit 1); exit 1; }; }
-  ;;
+		if test -d $cf_config/pkgconfig
+		then
+			PKG_CONFIG_LIBDIR=$cf_config/pkgconfig
+			echo "$as_me:3099: checking done" >&5
+echo $ECHO_N "checking done... $ECHO_C" >&6
+			break
+		fi
+	done
+	;;
+(*)
+	;;
 esac
 
-	fi
-else
-	enable_pc_files=no
+if test "x$PKG_CONFIG_LIBDIR" != xno ; then
+	echo "$as_me:3110: result: $PKG_CONFIG_LIBDIR" >&5
+echo "${ECHO_T}$PKG_CONFIG_LIBDIR" >&6
 fi
 
-echo "$as_me:2641: checking if you want to build test-programs" >&5
+echo "$as_me:3114: checking if you want to build test-programs" >&5
 echo $ECHO_N "checking if you want to build test-programs... $ECHO_C" >&6
 
 # Check whether --with-tests or --without-tests was given.
@@ -2648,10 +3121,10 @@ if test "${with_tests+set}" = set; then
 else
   cf_with_tests=yes
 fi;
-echo "$as_me:2651: result: $cf_with_tests" >&5
+echo "$as_me:3124: result: $cf_with_tests" >&5
 echo "${ECHO_T}$cf_with_tests" >&6
 
-echo "$as_me:2654: checking if we should assume mixed-case filenames" >&5
+echo "$as_me:3127: checking if we should assume mixed-case filenames" >&5
 echo $ECHO_N "checking if we should assume mixed-case filenames... $ECHO_C" >&6
 
 # Check whether --enable-mixed-case or --disable-mixed-case was given.
@@ -2661,22 +3134,22 @@ if test "${enable_mixed_case+set}" = set; then
 else
   enable_mixedcase=auto
 fi;
-echo "$as_me:2664: result: $enable_mixedcase" >&5
+echo "$as_me:3137: result: $enable_mixedcase" >&5
 echo "${ECHO_T}$enable_mixedcase" >&6
 if test "$enable_mixedcase" = "auto" ; then
 
-echo "$as_me:2668: checking if filesystem supports mixed-case filenames" >&5
+echo "$as_me:3141: checking if filesystem supports mixed-case filenames" >&5
 echo $ECHO_N "checking if filesystem supports mixed-case filenames... $ECHO_C" >&6
 if test "${cf_cv_mixedcase+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 if test "$cross_compiling" = yes ; then
-	case $target_alias in #(vi
-	*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*) #(vi
+	case $target_alias in
+	(*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*)
 		cf_cv_mixedcase=no
 		;;
-	*)
+	(*)
 		cf_cv_mixedcase=yes
 		;;
 	esac
@@ -2692,7 +3165,7 @@ else
 fi
 
 fi
-echo "$as_me:2695: result: $cf_cv_mixedcase" >&5
+echo "$as_me:3168: result: $cf_cv_mixedcase" >&5
 echo "${ECHO_T}$cf_cv_mixedcase" >&6
 test "$cf_cv_mixedcase" = yes &&
 cat >>confdefs.h <<\EOF
@@ -2700,17 +3173,17 @@ cat >>confdefs.h <<\EOF
 EOF
 
 else
-    cf_cv_mixedcase=$enable_mixedcase
-    if test "$enable_mixedcase" = "yes" ; then
-        cat >>confdefs.h <<\EOF
+	cf_cv_mixedcase=$enable_mixedcase
+	if test "$enable_mixedcase" = "yes" ; then
+		cat >>confdefs.h <<\EOF
 #define MIXEDCASE_FILENAMES 1
 EOF
 
-    fi
+	fi
 fi
 
 # do this after mixed-case option (tags/TAGS is not as important as tic).
-echo "$as_me:2713: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "$as_me:3186: checking whether ${MAKE-make} sets \${MAKE}" >&5
 echo $ECHO_N "checking whether ${MAKE-make} sets \${MAKE}... $ECHO_C" >&6
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,./+-,__p_,'`
 if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
@@ -2730,11 +3203,11 @@ fi
 rm -f conftest.make
 fi
 if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
-  echo "$as_me:2733: result: yes" >&5
+  echo "$as_me:3206: result: yes" >&5
 echo "${ECHO_T}yes" >&6
   SET_MAKE=
 else
-  echo "$as_me:2737: result: no" >&5
+  echo "$as_me:3210: result: no" >&5
 echo "${ECHO_T}no" >&6
   SET_MAKE="MAKE=${MAKE-make}"
 fi
@@ -2743,7 +3216,7 @@ for ac_prog in exctags ctags
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "$as_me:2746: checking for $ac_word" >&5
+echo "$as_me:3219: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_CTAGS+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2758,7 +3231,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_CTAGS="$ac_prog"
-echo "$as_me:2761: found $ac_dir/$ac_word" >&5
+echo "$as_me:3234: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -2766,10 +3239,10 @@ fi
 fi
 CTAGS=$ac_cv_prog_CTAGS
 if test -n "$CTAGS"; then
-  echo "$as_me:2769: result: $CTAGS" >&5
+  echo "$as_me:3242: result: $CTAGS" >&5
 echo "${ECHO_T}$CTAGS" >&6
 else
-  echo "$as_me:2772: result: no" >&5
+  echo "$as_me:3245: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2780,7 +3253,7 @@ for ac_prog in exetags etags
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "$as_me:2783: checking for $ac_word" >&5
+echo "$as_me:3256: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ETAGS+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2795,7 +3268,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_ETAGS="$ac_prog"
-echo "$as_me:2798: found $ac_dir/$ac_word" >&5
+echo "$as_me:3271: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -2803,10 +3276,10 @@ fi
 fi
 ETAGS=$ac_cv_prog_ETAGS
 if test -n "$ETAGS"; then
-  echo "$as_me:2806: result: $ETAGS" >&5
+  echo "$as_me:3279: result: $ETAGS" >&5
 echo "${ECHO_T}$ETAGS" >&6
 else
-  echo "$as_me:2809: result: no" >&5
+  echo "$as_me:3282: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2815,7 +3288,7 @@ done
 
 # Extract the first word of "${CTAGS:-ctags}", so it can be a program name with args.
 set dummy ${CTAGS:-ctags}; ac_word=$2
-echo "$as_me:2818: checking for $ac_word" >&5
+echo "$as_me:3291: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_MAKE_LOWER_TAGS+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2830,7 +3303,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_MAKE_LOWER_TAGS="yes"
-echo "$as_me:2833: found $ac_dir/$ac_word" >&5
+echo "$as_me:3306: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -2839,17 +3312,17 @@ fi
 fi
 MAKE_LOWER_TAGS=$ac_cv_prog_MAKE_LOWER_TAGS
 if test -n "$MAKE_LOWER_TAGS"; then
-  echo "$as_me:2842: result: $MAKE_LOWER_TAGS" >&5
+  echo "$as_me:3315: result: $MAKE_LOWER_TAGS" >&5
 echo "${ECHO_T}$MAKE_LOWER_TAGS" >&6
 else
-  echo "$as_me:2845: result: no" >&5
+  echo "$as_me:3318: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
 if test "$cf_cv_mixedcase" = yes ; then
 	# Extract the first word of "${ETAGS:-etags}", so it can be a program name with args.
 set dummy ${ETAGS:-etags}; ac_word=$2
-echo "$as_me:2852: checking for $ac_word" >&5
+echo "$as_me:3325: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_MAKE_UPPER_TAGS+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2864,7 +3337,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_MAKE_UPPER_TAGS="yes"
-echo "$as_me:2867: found $ac_dir/$ac_word" >&5
+echo "$as_me:3340: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -2873,10 +3346,10 @@ fi
 fi
 MAKE_UPPER_TAGS=$ac_cv_prog_MAKE_UPPER_TAGS
 if test -n "$MAKE_UPPER_TAGS"; then
-  echo "$as_me:2876: result: $MAKE_UPPER_TAGS" >&5
+  echo "$as_me:3349: result: $MAKE_UPPER_TAGS" >&5
 echo "${ECHO_T}$MAKE_UPPER_TAGS" >&6
 else
-  echo "$as_me:2879: result: no" >&5
+  echo "$as_me:3352: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2896,7 +3369,7 @@ else
 	MAKE_LOWER_TAGS="#"
 fi
 
-echo "$as_me:2899: checking for makeflags variable" >&5
+echo "$as_me:3372: checking for makeflags variable" >&5
 echo $ECHO_N "checking for makeflags variable... $ECHO_C" >&6
 if test "${cf_cv_makeflags+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2906,37 +3379,41 @@ else
 	for cf_option in '-${MAKEFLAGS}' '${MFLAGS}'
 	do
 		cat >cf_makeflags.tmp <<CF_EOF
-SHELL = /bin/sh
+SHELL = $SHELL
 all :
 	@ echo '.$cf_option'
 CF_EOF
 		cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp 2>/dev/null | fgrep -v "ing directory" | sed -e 's,[ 	]*$,,'`
 		case "$cf_result" in
-		.*k)
+		(.*k|.*kw)
 			cf_result=`${MAKE:-make} -k -f cf_makeflags.tmp CC=cc 2>/dev/null`
 			case "$cf_result" in
-			.*CC=*)	cf_cv_makeflags=
+			(.*CC=*)	cf_cv_makeflags=
 				;;
-			*)	cf_cv_makeflags=$cf_option
+			(*)	cf_cv_makeflags=$cf_option
 				;;
 			esac
 			break
 			;;
-		.-)	;;
-		*)	echo "given option \"$cf_option\", no match \"$cf_result\""
+		(.-)
+			;;
+		(*)
+
+echo "${as_me:-configure}:3402: testing given option \"$cf_option\",no match \"$cf_result\" ..." 1>&5
+
 			;;
 		esac
 	done
 	rm -f cf_makeflags.tmp
 
 fi
-echo "$as_me:2933: result: $cf_cv_makeflags" >&5
+echo "$as_me:3410: result: $cf_cv_makeflags" >&5
 echo "${ECHO_T}$cf_cv_makeflags" >&6
 
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-echo "$as_me:2939: checking for $ac_word" >&5
+echo "$as_me:3416: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_RANLIB+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2951,7 +3428,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
-echo "$as_me:2954: found $ac_dir/$ac_word" >&5
+echo "$as_me:3431: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -2959,10 +3436,10 @@ fi
 fi
 RANLIB=$ac_cv_prog_RANLIB
 if test -n "$RANLIB"; then
-  echo "$as_me:2962: result: $RANLIB" >&5
+  echo "$as_me:3439: result: $RANLIB" >&5
 echo "${ECHO_T}$RANLIB" >&6
 else
-  echo "$as_me:2965: result: no" >&5
+  echo "$as_me:3442: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2971,7 +3448,7 @@ if test -z "$ac_cv_prog_RANLIB"; then
   ac_ct_RANLIB=$RANLIB
   # Extract the first word of "ranlib", so it can be a program name with args.
 set dummy ranlib; ac_word=$2
-echo "$as_me:2974: checking for $ac_word" >&5
+echo "$as_me:3451: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2986,7 +3463,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_ac_ct_RANLIB="ranlib"
-echo "$as_me:2989: found $ac_dir/$ac_word" >&5
+echo "$as_me:3466: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -2995,10 +3472,10 @@ fi
 fi
 ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
 if test -n "$ac_ct_RANLIB"; then
-  echo "$as_me:2998: result: $ac_ct_RANLIB" >&5
+  echo "$as_me:3475: result: $ac_ct_RANLIB" >&5
 echo "${ECHO_T}$ac_ct_RANLIB" >&6
 else
-  echo "$as_me:3001: result: no" >&5
+  echo "$as_me:3478: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -3010,7 +3487,7 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ld", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ld; ac_word=$2
-echo "$as_me:3013: checking for $ac_word" >&5
+echo "$as_me:3490: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_LD+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3025,7 +3502,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_LD="${ac_tool_prefix}ld"
-echo "$as_me:3028: found $ac_dir/$ac_word" >&5
+echo "$as_me:3505: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -3033,10 +3510,10 @@ fi
 fi
 LD=$ac_cv_prog_LD
 if test -n "$LD"; then
-  echo "$as_me:3036: result: $LD" >&5
+  echo "$as_me:3513: result: $LD" >&5
 echo "${ECHO_T}$LD" >&6
 else
-  echo "$as_me:3039: result: no" >&5
+  echo "$as_me:3516: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -3045,7 +3522,7 @@ if test -z "$ac_cv_prog_LD"; then
   ac_ct_LD=$LD
   # Extract the first word of "ld", so it can be a program name with args.
 set dummy ld; ac_word=$2
-echo "$as_me:3048: checking for $ac_word" >&5
+echo "$as_me:3525: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_LD+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3060,7 +3537,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_ac_ct_LD="ld"
-echo "$as_me:3063: found $ac_dir/$ac_word" >&5
+echo "$as_me:3540: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -3069,10 +3546,10 @@ fi
 fi
 ac_ct_LD=$ac_cv_prog_ac_ct_LD
 if test -n "$ac_ct_LD"; then
-  echo "$as_me:3072: result: $ac_ct_LD" >&5
+  echo "$as_me:3549: result: $ac_ct_LD" >&5
 echo "${ECHO_T}$ac_ct_LD" >&6
 else
-  echo "$as_me:3075: result: no" >&5
+  echo "$as_me:3552: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -3084,7 +3561,7 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ar; ac_word=$2
-echo "$as_me:3087: checking for $ac_word" >&5
+echo "$as_me:3564: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_AR+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3099,7 +3576,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_AR="${ac_tool_prefix}ar"
-echo "$as_me:3102: found $ac_dir/$ac_word" >&5
+echo "$as_me:3579: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -3107,10 +3584,10 @@ fi
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
-  echo "$as_me:3110: result: $AR" >&5
+  echo "$as_me:3587: result: $AR" >&5
 echo "${ECHO_T}$AR" >&6
 else
-  echo "$as_me:3113: result: no" >&5
+  echo "$as_me:3590: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -3119,7 +3596,7 @@ if test -z "$ac_cv_prog_AR"; then
   ac_ct_AR=$AR
   # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
-echo "$as_me:3122: checking for $ac_word" >&5
+echo "$as_me:3599: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_AR+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3134,7 +3611,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_ac_ct_AR="ar"
-echo "$as_me:3137: found $ac_dir/$ac_word" >&5
+echo "$as_me:3614: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -3143,10 +3620,10 @@ fi
 fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
-  echo "$as_me:3146: result: $ac_ct_AR" >&5
+  echo "$as_me:3623: result: $ac_ct_AR" >&5
 echo "${ECHO_T}$ac_ct_AR" >&6
 else
-  echo "$as_me:3149: result: no" >&5
+  echo "$as_me:3626: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -3158,7 +3635,7 @@ fi
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ar; ac_word=$2
-echo "$as_me:3161: checking for $ac_word" >&5
+echo "$as_me:3638: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_AR+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3173,7 +3650,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_AR="${ac_tool_prefix}ar"
-echo "$as_me:3176: found $ac_dir/$ac_word" >&5
+echo "$as_me:3653: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -3181,10 +3658,10 @@ fi
 fi
 AR=$ac_cv_prog_AR
 if test -n "$AR"; then
-  echo "$as_me:3184: result: $AR" >&5
+  echo "$as_me:3661: result: $AR" >&5
 echo "${ECHO_T}$AR" >&6
 else
-  echo "$as_me:3187: result: no" >&5
+  echo "$as_me:3664: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -3193,7 +3670,7 @@ if test -z "$ac_cv_prog_AR"; then
   ac_ct_AR=$AR
   # Extract the first word of "ar", so it can be a program name with args.
 set dummy ar; ac_word=$2
-echo "$as_me:3196: checking for $ac_word" >&5
+echo "$as_me:3673: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_ac_ct_AR+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3208,7 +3685,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_ac_ct_AR="ar"
-echo "$as_me:3211: found $ac_dir/$ac_word" >&5
+echo "$as_me:3688: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -3217,10 +3694,10 @@ fi
 fi
 ac_ct_AR=$ac_cv_prog_ac_ct_AR
 if test -n "$ac_ct_AR"; then
-  echo "$as_me:3220: result: $ac_ct_AR" >&5
+  echo "$as_me:3697: result: $ac_ct_AR" >&5
 echo "${ECHO_T}$ac_ct_AR" >&6
 else
-  echo "$as_me:3223: result: no" >&5
+  echo "$as_me:3700: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -3229,14 +3706,14 @@ else
   AR="$ac_cv_prog_AR"
 fi
 
-echo "$as_me:3232: checking for options to update archives" >&5
+echo "$as_me:3709: checking for options to update archives" >&5
 echo $ECHO_N "checking for options to update archives... $ECHO_C" >&6
 if test "${cf_cv_ar_flags+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 	cf_cv_ar_flags=unknown
-	for cf_ar_flags in -curv curv -crv crv -cqv cqv -rv rv
+	for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
 	do
 
 		# check if $ARFLAGS already contains this choice
@@ -3252,13 +3729,13 @@ else
 		rm -f conftest.a
 
 		cat >conftest.$ac_ext <<EOF
-#line 3255 "configure"
+#line 3732 "configure"
 int	testdata[3] = { 123, 456, 789 };
 EOF
-		if { (eval echo "$as_me:3258: \"$ac_compile\"") >&5
+		if { (eval echo "$as_me:3735: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3261: \$? = $ac_status" >&5
+  echo "$as_me:3738: \$? = $ac_status" >&5
   (exit $ac_status); } ; then
 			echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&5
 			$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&5 1>/dev/null
@@ -3269,7 +3746,7 @@ EOF
 		else
 			test -n "$verbose" && echo "	cannot compile test-program" 1>&6
 
-echo "${as_me:-configure}:3272: testing cannot compile test-program ..." 1>&5
+echo "${as_me:-configure}:3749: testing cannot compile test-program ..." 1>&5
 
 			break
 		fi
@@ -3277,7 +3754,7 @@ echo "${as_me:-configure}:3272: testing cannot compile test-program ..." 1>&5
 	rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
 
 fi
-echo "$as_me:3280: result: $cf_cv_ar_flags" >&5
+echo "$as_me:3757: result: $cf_cv_ar_flags" >&5
 echo "${ECHO_T}$cf_cv_ar_flags" >&6
 
 if test -n "$ARFLAGS" ; then
@@ -3288,30 +3765,30 @@ else
 	ARFLAGS=$cf_cv_ar_flags
 fi
 
-	echo "$as_me:3291: checking for PATH separator" >&5
+	echo "$as_me:3768: checking for PATH separator" >&5
 echo $ECHO_N "checking for PATH separator... $ECHO_C" >&6
 	case $cf_cv_system_name in
-	os2*)	PATH_SEPARATOR=';'  ;;
-	*)	${PATH_SEPARATOR:=':'}  ;;
+	(os2*)	PATH_SEPARATOR=';'  ;;
+	(*)	${PATH_SEPARATOR:=':'}  ;;
 	esac
 
-	echo "$as_me:3298: result: $PATH_SEPARATOR" >&5
+	echo "$as_me:3775: result: $PATH_SEPARATOR" >&5
 echo "${ECHO_T}$PATH_SEPARATOR" >&6
 
-echo "$as_me:3301: checking if you have specified an install-prefix" >&5
+echo "$as_me:3778: checking if you have specified an install-prefix" >&5
 echo $ECHO_N "checking if you have specified an install-prefix... $ECHO_C" >&6
 
 # Check whether --with-install-prefix or --without-install-prefix was given.
 if test "${with_install_prefix+set}" = set; then
   withval="$with_install_prefix"
-  case "$withval" in #(vi
-	yes|no) #(vi
+  case "$withval" in
+	(yes|no)
 		;;
-	*)	DESTDIR="$withval"
+	(*)	DESTDIR="$withval"
 		;;
 	esac
 fi;
-echo "$as_me:3314: result: $DESTDIR" >&5
+echo "$as_me:3791: result: $DESTDIR" >&5
 echo "${ECHO_T}$DESTDIR" >&6
 
 ###############################################################################
@@ -3335,11 +3812,11 @@ if test "${with_build_cc+set}" = set; then
   withval="$with_build_cc"
   BUILD_CC="$withval"
 else
-  for ac_prog in gcc cc cl
+  for ac_prog in gcc clang c99 c89 cc cl
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "$as_me:3342: checking for $ac_word" >&5
+echo "$as_me:3819: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_BUILD_CC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3354,7 +3831,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_BUILD_CC="$ac_prog"
-echo "$as_me:3357: found $ac_dir/$ac_word" >&5
+echo "$as_me:3834: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -3362,23 +3839,24 @@ fi
 fi
 BUILD_CC=$ac_cv_prog_BUILD_CC
 if test -n "$BUILD_CC"; then
-  echo "$as_me:3365: result: $BUILD_CC" >&5
+  echo "$as_me:3842: result: $BUILD_CC" >&5
 echo "${ECHO_T}$BUILD_CC" >&6
 else
-  echo "$as_me:3368: result: no" >&5
+  echo "$as_me:3845: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
   test -n "$BUILD_CC" && break
 done
+test -n "$BUILD_CC" || BUILD_CC="none"
 
 fi;
-	echo "$as_me:3376: checking for native build C compiler" >&5
+	echo "$as_me:3854: checking for native build C compiler" >&5
 echo $ECHO_N "checking for native build C compiler... $ECHO_C" >&6
-	echo "$as_me:3378: result: $BUILD_CC" >&5
+	echo "$as_me:3856: result: $BUILD_CC" >&5
 echo "${ECHO_T}$BUILD_CC" >&6
 
-	echo "$as_me:3381: checking for native build C preprocessor" >&5
+	echo "$as_me:3859: checking for native build C preprocessor" >&5
 echo $ECHO_N "checking for native build C preprocessor... $ECHO_C" >&6
 
 # Check whether --with-build-cpp or --without-build-cpp was given.
@@ -3388,10 +3866,10 @@ if test "${with_build_cpp+set}" = set; then
 else
   BUILD_CPP='${BUILD_CC} -E'
 fi;
-	echo "$as_me:3391: result: $BUILD_CPP" >&5
+	echo "$as_me:3869: result: $BUILD_CPP" >&5
 echo "${ECHO_T}$BUILD_CPP" >&6
 
-	echo "$as_me:3394: checking for native build C flags" >&5
+	echo "$as_me:3872: checking for native build C flags" >&5
 echo $ECHO_N "checking for native build C flags... $ECHO_C" >&6
 
 # Check whether --with-build-cflags or --without-build-cflags was given.
@@ -3399,10 +3877,10 @@ if test "${with_build_cflags+set}" = set; then
   withval="$with_build_cflags"
   BUILD_CFLAGS="$withval"
 fi;
-	echo "$as_me:3402: result: $BUILD_CFLAGS" >&5
+	echo "$as_me:3880: result: $BUILD_CFLAGS" >&5
 echo "${ECHO_T}$BUILD_CFLAGS" >&6
 
-	echo "$as_me:3405: checking for native build C preprocessor-flags" >&5
+	echo "$as_me:3883: checking for native build C preprocessor-flags" >&5
 echo $ECHO_N "checking for native build C preprocessor-flags... $ECHO_C" >&6
 
 # Check whether --with-build-cppflags or --without-build-cppflags was given.
@@ -3410,10 +3888,10 @@ if test "${with_build_cppflags+set}" = set; then
   withval="$with_build_cppflags"
   BUILD_CPPFLAGS="$withval"
 fi;
-	echo "$as_me:3413: result: $BUILD_CPPFLAGS" >&5
+	echo "$as_me:3891: result: $BUILD_CPPFLAGS" >&5
 echo "${ECHO_T}$BUILD_CPPFLAGS" >&6
 
-	echo "$as_me:3416: checking for native build linker-flags" >&5
+	echo "$as_me:3894: checking for native build linker-flags" >&5
 echo $ECHO_N "checking for native build linker-flags... $ECHO_C" >&6
 
 # Check whether --with-build-ldflags or --without-build-ldflags was given.
@@ -3421,10 +3899,10 @@ if test "${with_build_ldflags+set}" = set; then
   withval="$with_build_ldflags"
   BUILD_LDFLAGS="$withval"
 fi;
-	echo "$as_me:3424: result: $BUILD_LDFLAGS" >&5
+	echo "$as_me:3902: result: $BUILD_LDFLAGS" >&5
 echo "${ECHO_T}$BUILD_LDFLAGS" >&6
 
-	echo "$as_me:3427: checking for native build linker-libraries" >&5
+	echo "$as_me:3905: checking for native build linker-libraries" >&5
 echo $ECHO_N "checking for native build linker-libraries... $ECHO_C" >&6
 
 # Check whether --with-build-libs or --without-build-libs was given.
@@ -3432,7 +3910,7 @@ if test "${with_build_libs+set}" = set; then
   withval="$with_build_libs"
   BUILD_LIBS="$withval"
 fi;
-	echo "$as_me:3435: result: $BUILD_LIBS" >&5
+	echo "$as_me:3913: result: $BUILD_LIBS" >&5
 echo "${ECHO_T}$BUILD_LIBS" >&6
 
 	# this assumes we're on Unix.
@@ -3442,7 +3920,7 @@ echo "${ECHO_T}$BUILD_LIBS" >&6
 	: ${BUILD_CC:='${CC}'}
 
 	if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
-		{ { echo "$as_me:3445: error: Cross-build requires two compilers.
+		{ { echo "$as_me:3923: error: Cross-build requires two compilers.
 Use --with-build-cc to specify the native compiler." >&5
 echo "$as_me: error: Cross-build requires two compilers.
 Use --with-build-cc to specify the native compiler." >&2;}
@@ -3467,7 +3945,7 @@ fi
 ### shared, for example.
 cf_list_models=""
 
-echo "$as_me:3470: checking if you want to build shared C-objects" >&5
+echo "$as_me:3948: checking if you want to build shared C-objects" >&5
 echo $ECHO_N "checking if you want to build shared C-objects... $ECHO_C" >&6
 
 # Check whether --with-shared or --without-shared was given.
@@ -3477,27 +3955,27 @@ if test "${with_shared+set}" = set; then
 else
   with_shared=no
 fi;
-echo "$as_me:3480: result: $with_shared" >&5
+echo "$as_me:3958: result: $with_shared" >&5
 echo "${ECHO_T}$with_shared" >&6
 test "$with_shared" = "yes" && cf_list_models="$cf_list_models shared"
 
-echo "$as_me:3484: checking for specified models" >&5
+echo "$as_me:3962: checking for specified models" >&5
 echo $ECHO_N "checking for specified models... $ECHO_C" >&6
 test -z "$cf_list_models" && cf_list_models=normal
-echo "$as_me:3487: result: $cf_list_models" >&5
+echo "$as_me:3965: result: $cf_list_models" >&5
 echo "${ECHO_T}$cf_list_models" >&6
 
 ### Use the first model as the default, and save its suffix for use in building
 ### up test-applications.
-echo "$as_me:3492: checking for default model" >&5
+echo "$as_me:3970: checking for default model" >&5
 echo $ECHO_N "checking for default model... $ECHO_C" >&6
 DFT_LWR_MODEL=`echo "$cf_list_models" | $AWK '{print $1}'`
-echo "$as_me:3495: result: $DFT_LWR_MODEL" >&5
+echo "$as_me:3973: result: $DFT_LWR_MODEL" >&5
 echo "${ECHO_T}$DFT_LWR_MODEL" >&6
 
 DFT_UPR_MODEL=`echo "$DFT_LWR_MODEL" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
 
-echo "$as_me:3500: checking for specific curses-directory" >&5
+echo "$as_me:3978: checking for specific curses-directory" >&5
 echo $ECHO_N "checking for specific curses-directory... $ECHO_C" >&6
 
 # Check whether --with-curses-dir or --without-curses-dir was given.
@@ -3507,41 +3985,41 @@ if test "${with_curses_dir+set}" = set; then
 else
   cf_cv_curses_dir=no
 fi;
-echo "$as_me:3510: result: $cf_cv_curses_dir" >&5
+echo "$as_me:3988: result: $cf_cv_curses_dir" >&5
 echo "${ECHO_T}$cf_cv_curses_dir" >&6
 
 if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
 then
 
 if test "x$prefix" != xNONE; then
-  cf_path_syntax="$prefix"
+	cf_path_syntax="$prefix"
 else
-  cf_path_syntax="$ac_default_prefix"
+	cf_path_syntax="$ac_default_prefix"
 fi
 
-case ".$withval" in #(vi
-.\$\(*\)*|.\'*\'*) #(vi
-  ;;
-..|./*|.\\*) #(vi
-  ;;
-.[a-zA-Z]:[\\/]*) #(vi OS/2 EMX
-  ;;
-.\${*prefix}*|.\${*dir}*) #(vi
-  eval withval="$withval"
-  case ".$withval" in #(vi
-  .NONE/*)
-    withval=`echo $withval | sed -e s%NONE%$cf_path_syntax%`
-    ;;
-  esac
-  ;; #(vi
-.no|.NONE/*)
-  withval=`echo $withval | sed -e s%NONE%$cf_path_syntax%`
-  ;;
-*)
-  { { echo "$as_me:3541: error: expected a pathname, not \"$withval\"" >&5
+case ".$withval" in
+(.\$\(*\)*|.\'*\'*)
+	;;
+(..|./*|.\\*)
+	;;
+(.[a-zA-Z]:[\\/]*) # OS/2 EMX
+	;;
+(.\${*prefix}*|.\${*dir}*)
+	eval withval="$withval"
+	case ".$withval" in
+	(.NONE/*)
+		withval=`echo $withval | sed -e s%NONE%$cf_path_syntax%`
+		;;
+	esac
+	;;
+(.no|.NONE/*)
+	withval=`echo $withval | sed -e s%NONE%$cf_path_syntax%`
+	;;
+(*)
+	{ { echo "$as_me:4019: error: expected a pathname, not \"$withval\"" >&5
 echo "$as_me: error: expected a pathname, not \"$withval\"" >&2;}
    { (exit 1); exit 1; }; }
-  ;;
+	;;
 esac
 
 	if test -d "$cf_cv_curses_dir"
@@ -3569,13 +4047,16 @@ if test -n "$cf_cv_curses_dir/include" ; then
 			if test "$GCC" = yes
 			then
 			  cf_save_CPPFLAGS=$CPPFLAGS
-			  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
+
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}-I$cf_add_incdir"
+
 			  cat >conftest.$ac_ext <<_ACEOF
-#line 3574 "configure"
+#line 4055 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int
-main ()
+main (void)
 {
 printf("Hello")
   ;
@@ -3583,16 +4064,16 @@ printf("Hello")
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3586: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:4067: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3589: \$? = $ac_status" >&5
+  echo "$as_me:4070: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3592: \"$ac_try\"") >&5
+  { (eval echo "$as_me:4073: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3595: \$? = $ac_status" >&5
+  echo "$as_me:4076: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   :
 else
@@ -3609,7 +4090,7 @@ rm -f conftest.$ac_objext conftest.$ac_ext
 		if test "$cf_have_incdir" = no ; then
 		  test -n "$verbose" && echo "	adding $cf_add_incdir to include-path" 1>&6
 
-echo "${as_me:-configure}:3612: testing adding $cf_add_incdir to include-path ..." 1>&5
+echo "${as_me:-configure}:4093: testing adding $cf_add_incdir to include-path ..." 1>&5
 
 		  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
 
@@ -3619,42 +4100,1871 @@ echo "${as_me:-configure}:3612: testing adding $cf_add_incdir to include-path ..
 		else
 		  break
 		fi
+	  else
+		break
 	  fi
 	done
   done
 fi
 
 if test -n "$cf_cv_curses_dir/lib" ; then
-  for cf_add_libdir in $cf_cv_curses_dir/lib
+	for cf_add_libdir in $cf_cv_curses_dir/lib
+	do
+		if test $cf_add_libdir = /usr/lib ; then
+			:
+		elif test -d $cf_add_libdir
+		then
+			cf_have_libdir=no
+			if test -n "$LDFLAGS$LIBS" ; then
+				# a loop is needed to ensure we can add subdirs of existing dirs
+				for cf_test_libdir in $LDFLAGS $LIBS ; do
+					if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
+						cf_have_libdir=yes; break
+					fi
+				done
+			fi
+			if test "$cf_have_libdir" = no ; then
+				test -n "$verbose" && echo "	adding $cf_add_libdir to library-path" 1>&6
+
+echo "${as_me:-configure}:4129: testing adding $cf_add_libdir to library-path ..." 1>&5
+
+				LDFLAGS="-L$cf_add_libdir $LDFLAGS"
+			fi
+		fi
+	done
+fi
+
+	fi
+fi
+
+cf_ncuconfig_root=ncurses
+cf_have_ncuconfig=no
+
+if test "x${PKG_CONFIG:=none}" != xnone; then
+	echo "$as_me:4144: checking pkg-config for $cf_ncuconfig_root" >&5
+echo $ECHO_N "checking pkg-config for $cf_ncuconfig_root... $ECHO_C" >&6
+	if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
+		echo "$as_me:4147: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+		echo "$as_me:4150: checking if the $cf_ncuconfig_root package files work" >&5
+echo $ECHO_N "checking if the $cf_ncuconfig_root package files work... $ECHO_C" >&6
+		cf_have_ncuconfig=unknown
+
+		cf_save_CPPFLAGS="$CPPFLAGS"
+		cf_save_LIBS="$LIBS"
+
+cf_fix_cppflags=no
+cf_new_cflags=
+cf_new_cppflags=
+cf_new_extra_cppflags=
+
+for cf_add_cflags in `$PKG_CONFIG --cflags $cf_ncuconfig_root`
+do
+case $cf_fix_cppflags in
+(no)
+	case $cf_add_cflags in
+	(-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
+		case $cf_add_cflags in
+		(-D*)
+			cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[^=]*='\''\"[^"]*//'`
+
+			test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
+				&& test -z "${cf_tst_cflags}" \
+				&& cf_fix_cppflags=yes
+
+			if test $cf_fix_cppflags = yes ; then
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+				continue
+			elif test "${cf_tst_cflags}" = "\"'" ; then
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+				continue
+			fi
+			;;
+		esac
+		case "$CPPFLAGS" in
+		(*$cf_add_cflags)
+			;;
+		(*)
+			case $cf_add_cflags in
+			(-D*)
+				cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
+
+CPPFLAGS=`echo "$CPPFLAGS" | \
+	sed	-e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ 	]*\)\?[ 	]/ /g' \
+		-e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ 	]*\)\?$//g'`
+
+				;;
+			esac
+
+	test -n "$cf_new_cppflags" && cf_new_cppflags="$cf_new_cppflags "
+	cf_new_cppflags="${cf_new_cppflags}$cf_add_cflags"
+
+			;;
+		esac
+		;;
+	(*)
+
+	test -n "$cf_new_cflags" && cf_new_cflags="$cf_new_cflags "
+	cf_new_cflags="${cf_new_cflags}$cf_add_cflags"
+
+		;;
+	esac
+	;;
+(yes)
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+	cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[^"]*"'\''//'`
+
+	test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
+		&& test -z "${cf_tst_cflags}" \
+		&& cf_fix_cppflags=no
+	;;
+esac
+done
+
+if test -n "$cf_new_cflags" ; then
+
+	test -n "$CFLAGS" && CFLAGS="$CFLAGS "
+	CFLAGS="${CFLAGS}$cf_new_cflags"
+
+fi
+
+if test -n "$cf_new_cppflags" ; then
+
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}$cf_new_cppflags"
+
+fi
+
+if test -n "$cf_new_extra_cppflags" ; then
+
+	test -n "$EXTRA_CPPFLAGS" && EXTRA_CPPFLAGS="$EXTRA_CPPFLAGS "
+	EXTRA_CPPFLAGS="${EXTRA_CPPFLAGS}$cf_new_extra_cppflags"
+
+fi
+
+cf_add_libs="$LIBS"
+# reverse order
+cf_add_0lib=
+for cf_add_1lib in `$PKG_CONFIG --libs $cf_ncuconfig_root`; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
+# filter duplicates
+for cf_add_1lib in $cf_add_0lib; do
+	for cf_add_2lib in $cf_add_libs; do
+		if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
+			cf_add_1lib=
+			break
+		fi
+	done
+	test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
+done
+LIBS="$cf_add_libs"
+
+		cat >conftest.$ac_ext <<_ACEOF
+#line 4272 "configure"
+#include "confdefs.h"
+#include <${cf_cv_ncurses_header:-curses.h}>
+int
+main (void)
+{
+initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:4284: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:4287: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:4290: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4293: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  if test "$cross_compiling" = yes; then
+  cf_have_ncuconfig=maybe
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4299 "configure"
+#include "confdefs.h"
+#include <${cf_cv_ncurses_header:-curses.h}>
+				int main(void)
+				{ char *xx = curses_version(); return (xx == 0); }
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:4306: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:4309: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:4311: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4314: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  cf_have_ncuconfig=yes
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_have_ncuconfig=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_have_ncuconfig=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+		echo "$as_me:4331: result: $cf_have_ncuconfig" >&5
+echo "${ECHO_T}$cf_have_ncuconfig" >&6
+		test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
+		if test "$cf_have_ncuconfig" != "yes"
+		then
+			CPPFLAGS="$cf_save_CPPFLAGS"
+			LIBS="$cf_save_LIBS"
+			NCURSES_CONFIG_PKG=none
+		else
+
+cat >>confdefs.h <<\EOF
+#define NCURSES 1
+EOF
+
+			NCURSES_CONFIG_PKG=$cf_ncuconfig_root
+
+echo "$as_me:4347: checking for terminfo header" >&5
+echo $ECHO_N "checking for terminfo header... $ECHO_C" >&6
+if test "${cf_cv_term_header+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+case ${cf_cv_ncurses_header} in
+(*/ncurses.h|*/ncursesw.h)
+	cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[^.]*\.h$%term.h%'`
+	;;
+(*)
+	cf_term_header=term.h
+	;;
+esac
+
+for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
+do
+cat >conftest.$ac_ext <<_ACEOF
+#line 4365 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+#include <${cf_cv_ncurses_header:-curses.h}>
+#include <$cf_test>
+
+int
+main (void)
+{
+int x = auto_left_margin
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4380: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4383: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4386: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4389: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+	cf_cv_term_header="$cf_test"
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+
+	cf_cv_term_header=unknown
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+	test "$cf_cv_term_header" != unknown && break
+done
+
+fi
+echo "$as_me:4405: result: $cf_cv_term_header" >&5
+echo "${ECHO_T}$cf_cv_term_header" >&6
+
+# Set definitions to allow ifdef'ing to accommodate subdirectories
+
+case $cf_cv_term_header in
+(*term.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_TERM_H 1
+EOF
+
+	;;
+esac
+
+case $cf_cv_term_header in
+(ncurses/term.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_NCURSES_TERM_H 1
+EOF
+
+	;;
+(ncursesw/term.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_NCURSESW_TERM_H 1
+EOF
+
+	;;
+esac
+
+		fi
+
+	else
+		echo "$as_me:4440: result: no" >&5
+echo "${ECHO_T}no" >&6
+		NCURSES_CONFIG_PKG=none
+	fi
+else
+	NCURSES_CONFIG_PKG=none
+fi
+
+if test "x$cf_have_ncuconfig" = "xno"; then
+	cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
+
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config
   do
-    if test $cf_add_libdir = /usr/lib ; then
-      :
-    elif test -d $cf_add_libdir
-    then
-      cf_have_libdir=no
-      if test -n "$LDFLAGS$LIBS" ; then
-        # a loop is needed to ensure we can add subdirs of existing dirs
-        for cf_test_libdir in $LDFLAGS $LIBS ; do
-          if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
-            cf_have_libdir=yes; break
-          fi
-        done
-      fi
-      if test "$cf_have_libdir" = no ; then
-        test -n "$verbose" && echo "	adding $cf_add_libdir to library-path" 1>&6
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:4456: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_NCURSES_CONFIG+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$NCURSES_CONFIG"; then
+  ac_cv_prog_NCURSES_CONFIG="$NCURSES_CONFIG" # Let the user override the test.
+else
+  ac_save_IFS=$IFS; IFS=$ac_path_separator
+ac_dummy="$PATH"
+for ac_dir in $ac_dummy; do
+  IFS=$ac_save_IFS
+  test -z "$ac_dir" && ac_dir=.
+  $as_executable_p "$ac_dir/$ac_word" || continue
+ac_cv_prog_NCURSES_CONFIG="$ac_tool_prefix$ac_prog"
+echo "$as_me:4471: found $ac_dir/$ac_word" >&5
+break
+done
 
-echo "${as_me:-configure}:3646: testing adding $cf_add_libdir to library-path ..." 1>&5
+fi
+fi
+NCURSES_CONFIG=$ac_cv_prog_NCURSES_CONFIG
+if test -n "$NCURSES_CONFIG"; then
+  echo "$as_me:4479: result: $NCURSES_CONFIG" >&5
+echo "${ECHO_T}$NCURSES_CONFIG" >&6
+else
+  echo "$as_me:4482: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
 
-        LDFLAGS="-L$cf_add_libdir $LDFLAGS"
-      fi
-    fi
+    test -n "$NCURSES_CONFIG" && break
+  done
+fi
+if test -z "$NCURSES_CONFIG"; then
+  ac_ct_NCURSES_CONFIG=$NCURSES_CONFIG
+  for ac_prog in ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:4495: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_NCURSES_CONFIG+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  if test -n "$ac_ct_NCURSES_CONFIG"; then
+  ac_cv_prog_ac_ct_NCURSES_CONFIG="$ac_ct_NCURSES_CONFIG" # Let the user override the test.
+else
+  ac_save_IFS=$IFS; IFS=$ac_path_separator
+ac_dummy="$PATH"
+for ac_dir in $ac_dummy; do
+  IFS=$ac_save_IFS
+  test -z "$ac_dir" && ac_dir=.
+  $as_executable_p "$ac_dir/$ac_word" || continue
+ac_cv_prog_ac_ct_NCURSES_CONFIG="$ac_prog"
+echo "$as_me:4510: found $ac_dir/$ac_word" >&5
+break
+done
+
+fi
+fi
+ac_ct_NCURSES_CONFIG=$ac_cv_prog_ac_ct_NCURSES_CONFIG
+if test -n "$ac_ct_NCURSES_CONFIG"; then
+  echo "$as_me:4518: result: $ac_ct_NCURSES_CONFIG" >&5
+echo "${ECHO_T}$ac_ct_NCURSES_CONFIG" >&6
+else
+  echo "$as_me:4521: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+  test -n "$ac_ct_NCURSES_CONFIG" && break
+done
+test -n "$ac_ct_NCURSES_CONFIG" || ac_ct_NCURSES_CONFIG="none"
+
+  NCURSES_CONFIG=$ac_ct_NCURSES_CONFIG
+fi
+
+	if test "$NCURSES_CONFIG" != none ; then
+
+cf_fix_cppflags=no
+cf_new_cflags=
+cf_new_cppflags=
+cf_new_extra_cppflags=
+
+for cf_add_cflags in `$NCURSES_CONFIG --cflags`
+do
+case $cf_fix_cppflags in
+(no)
+	case $cf_add_cflags in
+	(-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
+		case $cf_add_cflags in
+		(-D*)
+			cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[^=]*='\''\"[^"]*//'`
+
+			test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
+				&& test -z "${cf_tst_cflags}" \
+				&& cf_fix_cppflags=yes
+
+			if test $cf_fix_cppflags = yes ; then
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+				continue
+			elif test "${cf_tst_cflags}" = "\"'" ; then
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+				continue
+			fi
+			;;
+		esac
+		case "$CPPFLAGS" in
+		(*$cf_add_cflags)
+			;;
+		(*)
+			case $cf_add_cflags in
+			(-D*)
+				cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
+
+CPPFLAGS=`echo "$CPPFLAGS" | \
+	sed	-e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ 	]*\)\?[ 	]/ /g' \
+		-e 's/-[UD]'"$cf_tst_cppflags"'\(=[^ 	]*\)\?$//g'`
+
+				;;
+			esac
+
+	test -n "$cf_new_cppflags" && cf_new_cppflags="$cf_new_cppflags "
+	cf_new_cppflags="${cf_new_cppflags}$cf_add_cflags"
+
+			;;
+		esac
+		;;
+	(*)
+
+	test -n "$cf_new_cflags" && cf_new_cflags="$cf_new_cflags "
+	cf_new_cflags="${cf_new_cflags}$cf_add_cflags"
+
+		;;
+	esac
+	;;
+(yes)
+
+	test -n "$cf_new_extra_cppflags" && cf_new_extra_cppflags="$cf_new_extra_cppflags "
+	cf_new_extra_cppflags="${cf_new_extra_cppflags}$cf_add_cflags"
+
+	cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[^"]*"'\''//'`
+
+	test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
+		&& test -z "${cf_tst_cflags}" \
+		&& cf_fix_cppflags=no
+	;;
+esac
+done
+
+if test -n "$cf_new_cflags" ; then
+
+	test -n "$CFLAGS" && CFLAGS="$CFLAGS "
+	CFLAGS="${CFLAGS}$cf_new_cflags"
+
+fi
+
+if test -n "$cf_new_cppflags" ; then
+
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}$cf_new_cppflags"
+
+fi
+
+if test -n "$cf_new_extra_cppflags" ; then
+
+	test -n "$EXTRA_CPPFLAGS" && EXTRA_CPPFLAGS="$EXTRA_CPPFLAGS "
+	EXTRA_CPPFLAGS="${EXTRA_CPPFLAGS}$cf_new_extra_cppflags"
+
+fi
+
+cf_add_libs="$LIBS"
+# reverse order
+cf_add_0lib=
+for cf_add_1lib in `$NCURSES_CONFIG --libs`; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
+# filter duplicates
+for cf_add_1lib in $cf_add_0lib; do
+	for cf_add_2lib in $cf_add_libs; do
+		if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
+			cf_add_1lib=
+			break
+		fi
+	done
+	test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
+done
+LIBS="$cf_add_libs"
+
+		# even with config script, some packages use no-override for curses.h
+
+echo "$as_me:4650: checking if we have identified curses headers" >&5
+echo $ECHO_N "checking if we have identified curses headers... $ECHO_C" >&6
+if test "${cf_cv_ncurses_header+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+cf_cv_ncurses_header=none
+for cf_header in \
+	ncurses.h ncurses/ncurses.h \
+	curses.h ncurses/curses.h
+do
+cat >conftest.$ac_ext <<_ACEOF
+#line 4662 "configure"
+#include "confdefs.h"
+#include <${cf_header}>
+int
+main (void)
+{
+initscr(); tgoto("?", 0,0)
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4674: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4677: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4680: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4683: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  cf_cv_ncurses_header=$cf_header; break
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+
+fi
+echo "$as_me:4694: result: $cf_cv_ncurses_header" >&5
+echo "${ECHO_T}$cf_cv_ncurses_header" >&6
+
+if test "$cf_cv_ncurses_header" = none ; then
+	{ { echo "$as_me:4698: error: No curses header-files found" >&5
+echo "$as_me: error: No curses header-files found" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+# cheat, to get the right #define's for HAVE_NCURSES_H, etc.
+
+for ac_header in $cf_cv_ncurses_header
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+echo "$as_me:4708: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4714 "configure"
+#include "confdefs.h"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:4718: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  egrep -v '^ *\+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:4724: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  eval "$as_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  eval "$as_ac_Header=no"
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+echo "$as_me:4743: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+EOF
+
+fi
+done
+
+cat >>confdefs.h <<\EOF
+#define NCURSES 1
+EOF
+
+cf_nculib_ROOT=`echo "HAVE_LIB$cf_ncuconfig_root" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
+
+		cat >>confdefs.h <<EOF
+#define $cf_nculib_ROOT 1
+EOF
+
+				cf_cv_ncurses_version=`$NCURSES_CONFIG --version`
+
+	else
+
+cf_ncuhdr_root=ncurses
+
+test -n "$cf_cv_curses_dir" && \
+test "$cf_cv_curses_dir" != "no" && { \
+
+if test -n "$cf_cv_curses_dir/include/$cf_ncuhdr_root" ; then
+  for cf_add_incdir in $cf_cv_curses_dir/include/$cf_ncuhdr_root
+  do
+	while test $cf_add_incdir != /usr/include
+	do
+	  if test -d $cf_add_incdir
+	  then
+		cf_have_incdir=no
+		if test -n "$CFLAGS$CPPFLAGS" ; then
+		  # a loop is needed to ensure we can add subdirs of existing dirs
+		  for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
+			if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
+			  cf_have_incdir=yes; break
+			fi
+		  done
+		fi
+
+		if test "$cf_have_incdir" = no ; then
+		  if test "$cf_add_incdir" = /usr/local/include ; then
+			if test "$GCC" = yes
+			then
+			  cf_save_CPPFLAGS=$CPPFLAGS
+
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}-I$cf_add_incdir"
+
+			  cat >conftest.$ac_ext <<_ACEOF
+#line 4799 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+int
+main (void)
+{
+printf("Hello")
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4811: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4814: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4817: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4820: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_have_incdir=yes
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+			  CPPFLAGS=$cf_save_CPPFLAGS
+			fi
+		  fi
+		fi
+
+		if test "$cf_have_incdir" = no ; then
+		  test -n "$verbose" && echo "	adding $cf_add_incdir to include-path" 1>&6
+
+echo "${as_me:-configure}:4837: testing adding $cf_add_incdir to include-path ..." 1>&5
+
+		  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
+
+		  cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
+		  test "$cf_top_incdir" = "$cf_add_incdir" && break
+		  cf_add_incdir="$cf_top_incdir"
+		else
+		  break
+		fi
+	  else
+		break
+	  fi
+	done
   done
 fi
 
+}
+
+echo "$as_me:4856: checking for $cf_ncuhdr_root header in include-path" >&5
+echo $ECHO_N "checking for $cf_ncuhdr_root header in include-path... $ECHO_C" >&6
+if test "${cf_cv_ncurses_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+	cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
+	( test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw ) && cf_header_list="$cf_header_list curses.h ncurses.h"
+	for cf_header in $cf_header_list
+	do
+
+	cat >conftest.$ac_ext <<_ACEOF
+#line 4868 "configure"
+#include "confdefs.h"
+
+#include <$cf_header>
+int
+main (void)
+{
+
+#ifdef NCURSES_VERSION
+
+printf("%s\n", NCURSES_VERSION);
+#else
+#ifdef __NCURSES_H
+printf("old\n");
+#else
+	make an error
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:4892: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:4895: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:4898: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4901: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  cf_cv_ncurses_h=$cf_header
+
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_ncurses_h=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+
+		test "$cf_cv_ncurses_h" != no && break
+	done
+
+fi
+echo "$as_me:4916: result: $cf_cv_ncurses_h" >&5
+echo "${ECHO_T}$cf_cv_ncurses_h" >&6
+
+if test "$cf_cv_ncurses_h" != no ; then
+	cf_cv_ncurses_header=$cf_cv_ncurses_h
+else
+
+echo "$as_me:4923: checking for $cf_ncuhdr_root include-path" >&5
+echo $ECHO_N "checking for $cf_ncuhdr_root include-path... $ECHO_C" >&6
+if test "${cf_cv_ncurses_h2+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+	test -n "$verbose" && echo
+
+cf_search=
+
+# collect the current set of include-directories from compiler flags
+cf_header_path_list=""
+if test -n "${CFLAGS}${CPPFLAGS}" ; then
+	for cf_header_path in $CPPFLAGS $CFLAGS
+	do
+		case $cf_header_path in
+		(-I*)
+			cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
+
+test "x$cf_header_path" != "xNONE" && \
+test -d "$cf_header_path" && \
+ {
+	test -n "$verbose" && echo "	... testing for include-directories under $cf_header_path"
+	test -d $cf_header_path/include &&          cf_search="$cf_search $cf_header_path/include"
+	test -d $cf_header_path/include/$cf_ncuhdr_root &&       cf_search="$cf_search $cf_header_path/include/$cf_ncuhdr_root"
+	test -d $cf_header_path/include/$cf_ncuhdr_root/include &&    cf_search="$cf_search $cf_header_path/include/$cf_ncuhdr_root/include"
+	test -d $cf_header_path/$cf_ncuhdr_root/include &&       cf_search="$cf_search $cf_header_path/$cf_ncuhdr_root/include"
+	test -d $cf_header_path/$cf_ncuhdr_root/include/$cf_ncuhdr_root &&    cf_search="$cf_search $cf_header_path/$cf_ncuhdr_root/include/$cf_ncuhdr_root"
+}
+
+			cf_header_path_list="$cf_header_path_list $cf_search"
+			;;
+		esac
+	done
+fi
+
+# add the variations for the package we are looking for
+
+cf_search=
+
+test "x$prefix" != "xNONE" && \
+test -d "$prefix" && \
+ {
+	test -n "$verbose" && echo "	... testing for include-directories under $prefix"
+	test -d $prefix/include &&          cf_search="$cf_search $prefix/include"
+	test -d $prefix/include/$cf_ncuhdr_root &&       cf_search="$cf_search $prefix/include/$cf_ncuhdr_root"
+	test -d $prefix/include/$cf_ncuhdr_root/include &&    cf_search="$cf_search $prefix/include/$cf_ncuhdr_root/include"
+	test -d $prefix/$cf_ncuhdr_root/include &&       cf_search="$cf_search $prefix/$cf_ncuhdr_root/include"
+	test -d $prefix/$cf_ncuhdr_root/include/$cf_ncuhdr_root &&    cf_search="$cf_search $prefix/$cf_ncuhdr_root/include/$cf_ncuhdr_root"
+}
+
+for cf_subdir_prefix in \
+	/usr \
+	/usr/local \
+	/usr/pkg \
+	/opt \
+	/opt/local \
+	$HOME
+do
+
+test "x$cf_subdir_prefix" != "x$prefix" && \
+test -d "$cf_subdir_prefix" && \
+(test -z "$prefix" || test x$prefix = xNONE || test "x$cf_subdir_prefix" != "x$prefix") && {
+	test -n "$verbose" && echo "	... testing for include-directories under $cf_subdir_prefix"
+	test -d $cf_subdir_prefix/include &&          cf_search="$cf_search $cf_subdir_prefix/include"
+	test -d $cf_subdir_prefix/include/$cf_ncuhdr_root &&       cf_search="$cf_search $cf_subdir_prefix/include/$cf_ncuhdr_root"
+	test -d $cf_subdir_prefix/include/$cf_ncuhdr_root/include &&    cf_search="$cf_search $cf_subdir_prefix/include/$cf_ncuhdr_root/include"
+	test -d $cf_subdir_prefix/$cf_ncuhdr_root/include &&       cf_search="$cf_search $cf_subdir_prefix/$cf_ncuhdr_root/include"
+	test -d $cf_subdir_prefix/$cf_ncuhdr_root/include/$cf_ncuhdr_root &&    cf_search="$cf_search $cf_subdir_prefix/$cf_ncuhdr_root/include/$cf_ncuhdr_root"
+}
+
+done
+
+test "$includedir" != NONE && \
+test "$includedir" != "/usr/include" && \
+test -d "$includedir" && {
+	test -d $includedir &&    cf_search="$cf_search $includedir"
+	test -d $includedir/$cf_ncuhdr_root && cf_search="$cf_search $includedir/$cf_ncuhdr_root"
+}
+
+test "$oldincludedir" != NONE && \
+test "$oldincludedir" != "/usr/include" && \
+test -d "$oldincludedir" && {
+	test -d $oldincludedir    && cf_search="$cf_search $oldincludedir"
+	test -d $oldincludedir/$cf_ncuhdr_root && cf_search="$cf_search $oldincludedir/$cf_ncuhdr_root"
+}
+
+cf_search="$cf_search $cf_header_path_list"
+
+	test -n "$verbose" && echo search path $cf_search
+	cf_save2_CPPFLAGS="$CPPFLAGS"
+	for cf_incdir in $cf_search
+	do
+
+if test -n "$cf_incdir" ; then
+  for cf_add_incdir in $cf_incdir
+  do
+	while test $cf_add_incdir != /usr/include
+	do
+	  if test -d $cf_add_incdir
+	  then
+		cf_have_incdir=no
+		if test -n "$CFLAGS$CPPFLAGS" ; then
+		  # a loop is needed to ensure we can add subdirs of existing dirs
+		  for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
+			if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
+			  cf_have_incdir=yes; break
+			fi
+		  done
+		fi
+
+		if test "$cf_have_incdir" = no ; then
+		  if test "$cf_add_incdir" = /usr/local/include ; then
+			if test "$GCC" = yes
+			then
+			  cf_save_CPPFLAGS=$CPPFLAGS
+
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}-I$cf_add_incdir"
+
+			  cat >conftest.$ac_ext <<_ACEOF
+#line 5044 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+int
+main (void)
+{
+printf("Hello")
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5056: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5059: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5062: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5065: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_have_incdir=yes
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+			  CPPFLAGS=$cf_save_CPPFLAGS
+			fi
+		  fi
+		fi
+
+		if test "$cf_have_incdir" = no ; then
+		  test -n "$verbose" && echo "	adding $cf_add_incdir to include-path" 1>&6
+
+echo "${as_me:-configure}:5082: testing adding $cf_add_incdir to include-path ..." 1>&5
+
+		  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
+
+		  cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
+		  test "$cf_top_incdir" = "$cf_add_incdir" && break
+		  cf_add_incdir="$cf_top_incdir"
+		else
+		  break
+		fi
+	  else
+		break
+	  fi
+	done
+  done
+fi
+
+		for cf_header in \
+			ncurses.h \
+			curses.h
+		do
+
+	cat >conftest.$ac_ext <<_ACEOF
+#line 5105 "configure"
+#include "confdefs.h"
+
+#include <$cf_header>
+int
+main (void)
+{
+
+#ifdef NCURSES_VERSION
+
+printf("%s\n", NCURSES_VERSION);
+#else
+#ifdef __NCURSES_H
+printf("old\n");
+#else
+	make an error
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5129: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5132: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5135: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5138: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  cf_cv_ncurses_h2=$cf_header
+
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_cv_ncurses_h2=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+
+			if test "$cf_cv_ncurses_h2" != no ; then
+				cf_cv_ncurses_h2=$cf_incdir/$cf_header
+				test -n "$verbose" && echo $ac_n "	... found $ac_c" 1>&6
+				break
+			fi
+			test -n "$verbose" && echo "	... tested $cf_incdir/$cf_header" 1>&6
+		done
+		CPPFLAGS="$cf_save2_CPPFLAGS"
+		test "$cf_cv_ncurses_h2" != no && break
+	done
+	test "$cf_cv_ncurses_h2" = no && { { echo "$as_me:5159: error: not found" >&5
+echo "$as_me: error: not found" >&2;}
+   { (exit 1); exit 1; }; }
+
+fi
+echo "$as_me:5164: result: $cf_cv_ncurses_h2" >&5
+echo "${ECHO_T}$cf_cv_ncurses_h2" >&6
+
+	cf_1st_incdir=`echo $cf_cv_ncurses_h2 | sed -e 's%/[^/]*$%%'`
+	cf_cv_ncurses_header=`basename $cf_cv_ncurses_h2`
+	if test `basename $cf_1st_incdir` = $cf_ncuhdr_root ; then
+		cf_cv_ncurses_header=$cf_ncuhdr_root/$cf_cv_ncurses_header
 	fi
+
+if test -n "$cf_1st_incdir" ; then
+  for cf_add_incdir in $cf_1st_incdir
+  do
+	while test $cf_add_incdir != /usr/include
+	do
+	  if test -d $cf_add_incdir
+	  then
+		cf_have_incdir=no
+		if test -n "$CFLAGS$CPPFLAGS" ; then
+		  # a loop is needed to ensure we can add subdirs of existing dirs
+		  for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
+			if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
+			  cf_have_incdir=yes; break
+			fi
+		  done
+		fi
+
+		if test "$cf_have_incdir" = no ; then
+		  if test "$cf_add_incdir" = /usr/local/include ; then
+			if test "$GCC" = yes
+			then
+			  cf_save_CPPFLAGS=$CPPFLAGS
+
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}-I$cf_add_incdir"
+
+			  cat >conftest.$ac_ext <<_ACEOF
+#line 5200 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+int
+main (void)
+{
+printf("Hello")
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5212: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5215: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5218: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5221: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+cf_have_incdir=yes
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+			  CPPFLAGS=$cf_save_CPPFLAGS
+			fi
+		  fi
+		fi
+
+		if test "$cf_have_incdir" = no ; then
+		  test -n "$verbose" && echo "	adding $cf_add_incdir to include-path" 1>&6
+
+echo "${as_me:-configure}:5238: testing adding $cf_add_incdir to include-path ..." 1>&5
+
+		  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
+
+		  cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
+		  test "$cf_top_incdir" = "$cf_add_incdir" && break
+		  cf_add_incdir="$cf_top_incdir"
+		else
+		  break
+		fi
+	  else
+		break
+	  fi
+	done
+  done
 fi
 
-echo "$as_me:3657: checking if you want wide-character code" >&5
+fi
+
+# Set definitions to allow ifdef'ing for ncurses.h
+
+case $cf_cv_ncurses_header in
+(*ncurses.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_NCURSES_H 1
+EOF
+
+	;;
+esac
+
+case $cf_cv_ncurses_header in
+(ncurses/curses.h|ncurses/ncurses.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_NCURSES_NCURSES_H 1
+EOF
+
+	;;
+(ncursesw/curses.h|ncursesw/ncurses.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_NCURSESW_NCURSES_H 1
+EOF
+
+	;;
+esac
+
+echo "$as_me:5286: checking for terminfo header" >&5
+echo $ECHO_N "checking for terminfo header... $ECHO_C" >&6
+if test "${cf_cv_term_header+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+case ${cf_cv_ncurses_header} in
+(*/ncurses.h|*/ncursesw.h)
+	cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[^.]*\.h$%term.h%'`
+	;;
+(*)
+	cf_term_header=term.h
+	;;
+esac
+
+for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
+do
+cat >conftest.$ac_ext <<_ACEOF
+#line 5304 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+#include <${cf_cv_ncurses_header:-curses.h}>
+#include <$cf_test>
+
+int
+main (void)
+{
+int x = auto_left_margin
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:5319: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  echo "$as_me:5322: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:5325: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5328: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+	cf_cv_term_header="$cf_test"
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+
+	cf_cv_term_header=unknown
+
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+	test "$cf_cv_term_header" != unknown && break
+done
+
+fi
+echo "$as_me:5344: result: $cf_cv_term_header" >&5
+echo "${ECHO_T}$cf_cv_term_header" >&6
+
+# Set definitions to allow ifdef'ing to accommodate subdirectories
+
+case $cf_cv_term_header in
+(*term.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_TERM_H 1
+EOF
+
+	;;
+esac
+
+case $cf_cv_term_header in
+(ncurses/term.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_NCURSES_TERM_H 1
+EOF
+
+	;;
+(ncursesw/term.h)
+
+cat >>confdefs.h <<\EOF
+#define HAVE_NCURSESW_TERM_H 1
+EOF
+
+	;;
+esac
+
+# some applications need this, but should check for NCURSES_VERSION
+
+cat >>confdefs.h <<\EOF
+#define NCURSES 1
+EOF
+
+echo "$as_me:5382: checking for ncurses version" >&5
+echo $ECHO_N "checking for ncurses version... $ECHO_C" >&6
+if test "${cf_cv_ncurses_version+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+
+	cf_cv_ncurses_version=no
+	cf_tempfile=out$$
+	rm -f $cf_tempfile
+	if test "$cross_compiling" = yes; then
+
+	# This will not work if the preprocessor splits the line after the
+	# Autoconf token.  The 'unproto' program does that.
+	cat > conftest.$ac_ext <<EOF
+#include <${cf_cv_ncurses_header:-curses.h}>
+#undef Autoconf
+#ifdef NCURSES_VERSION
+Autoconf NCURSES_VERSION
+#else
+#ifdef __NCURSES_H
+Autoconf "old"
+#endif
+;
+#endif
+EOF
+	cf_try="$ac_cpp conftest.$ac_ext 2>&5 | grep '^Autoconf ' >conftest.out"
+	{ (eval echo "$as_me:5408: \"$cf_try\"") >&5
+  (eval $cf_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5411: \$? = $ac_status" >&5
+  (exit $ac_status); }
+	if test -f conftest.out ; then
+		cf_out=`cat conftest.out | sed -e 's%^Autoconf %%' -e 's%^[^"]*"%%' -e 's%".*%%'`
+		test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
+		rm -f conftest.out
+	fi
+
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5421 "configure"
+#include "confdefs.h"
+
+#include <${cf_cv_ncurses_header:-curses.h}>
+#include <stdio.h>
+int main(void)
+{
+	FILE *fp = fopen("$cf_tempfile", "w");
+#ifdef NCURSES_VERSION
+# ifdef NCURSES_VERSION_PATCH
+	fprintf(fp, "%s.%d\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
+# else
+	fprintf(fp, "%s\n", NCURSES_VERSION);
+# endif
+#else
+# ifdef __NCURSES_H
+	fprintf(fp, "old\n");
+# else
+	make an error
+# endif
+#endif
+	${cf_cv_main_return:-return}(0);
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:5446: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5449: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:5451: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5454: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+	cf_cv_ncurses_version=`cat $cf_tempfile`
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+	rm -f $cf_tempfile
+
+fi
+echo "$as_me:5468: result: $cf_cv_ncurses_version" >&5
+echo "${ECHO_T}$cf_cv_ncurses_version" >&6
+test "$cf_cv_ncurses_version" = no ||
+cat >>confdefs.h <<\EOF
+#define NCURSES 1
+EOF
+
+cf_nculib_root=ncurses
+	# This works, except for the special case where we find gpm, but
+	# ncurses is in a nonstandard location via $LIBS, and we really want
+	# to link gpm.
+cf_ncurses_LIBS=""
+cf_ncurses_SAVE="$LIBS"
+echo "$as_me:5481: checking for Gpm_Open in -lgpm" >&5
+echo $ECHO_N "checking for Gpm_Open in -lgpm... $ECHO_C" >&6
+if test "${ac_cv_lib_gpm_Gpm_Open+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lgpm  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line 5489 "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char Gpm_Open ();
+int
+main (void)
+{
+Gpm_Open ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:5508: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5511: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:5514: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5517: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_gpm_Gpm_Open=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_gpm_Gpm_Open=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:5528: result: $ac_cv_lib_gpm_Gpm_Open" >&5
+echo "${ECHO_T}$ac_cv_lib_gpm_Gpm_Open" >&6
+if test $ac_cv_lib_gpm_Gpm_Open = yes; then
+  echo "$as_me:5531: checking for initscr in -lgpm" >&5
+echo $ECHO_N "checking for initscr in -lgpm... $ECHO_C" >&6
+if test "${ac_cv_lib_gpm_initscr+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lgpm  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line 5539 "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char initscr ();
+int
+main (void)
+{
+initscr ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:5558: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5561: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:5564: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5567: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_gpm_initscr=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_gpm_initscr=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:5578: result: $ac_cv_lib_gpm_initscr" >&5
+echo "${ECHO_T}$ac_cv_lib_gpm_initscr" >&6
+if test $ac_cv_lib_gpm_initscr = yes; then
+  LIBS="$cf_ncurses_SAVE"
+else
+  cf_ncurses_LIBS="-lgpm"
+fi
+
+fi
+
+case $host_os in
+(freebsd*)
+	# This is only necessary if you are linking against an obsolete
+	# version of ncurses (but it should do no harm, since it's static).
+	if test "$cf_nculib_root" = ncurses ; then
+		echo "$as_me:5593: checking for tgoto in -lmytinfo" >&5
+echo $ECHO_N "checking for tgoto in -lmytinfo... $ECHO_C" >&6
+if test "${ac_cv_lib_mytinfo_tgoto+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmytinfo  $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line 5601 "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char tgoto ();
+int
+main (void)
+{
+tgoto ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:5620: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5623: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:5626: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5629: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_lib_mytinfo_tgoto=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_mytinfo_tgoto=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:5640: result: $ac_cv_lib_mytinfo_tgoto" >&5
+echo "${ECHO_T}$ac_cv_lib_mytinfo_tgoto" >&6
+if test $ac_cv_lib_mytinfo_tgoto = yes; then
+  cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"
+fi
+
+	fi
+	;;
+esac
+
+cf_add_libs="$LIBS"
+# reverse order
+cf_add_0lib=
+for cf_add_1lib in $cf_ncurses_LIBS; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
+# filter duplicates
+for cf_add_1lib in $cf_add_0lib; do
+	for cf_add_2lib in $cf_add_libs; do
+		if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
+			cf_add_1lib=
+			break
+		fi
+	done
+	test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
+done
+LIBS="$cf_add_libs"
+
+if ( test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no" )
+then
+
+cf_add_libs="$LIBS"
+# reverse order
+cf_add_0lib=
+for cf_add_1lib in -l$cf_nculib_root; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
+# filter duplicates
+for cf_add_1lib in $cf_add_0lib; do
+	for cf_add_2lib in $cf_add_libs; do
+		if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
+			cf_add_1lib=
+			break
+		fi
+	done
+	test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
+done
+LIBS="$cf_add_libs"
+
+else
+
+	eval 'cf_cv_have_lib_'$cf_nculib_root'=no'
+	cf_libdir=""
+	echo "$as_me:5689: checking for initscr" >&5
+echo $ECHO_N "checking for initscr... $ECHO_C" >&6
+if test "${ac_cv_func_initscr+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 5695 "configure"
+#include "confdefs.h"
+#define initscr autoconf_temporary
+#include <limits.h>	/* least-intrusive standard header which defines gcc2 __stub macros */
+#undef initscr
+
+#ifdef __cplusplus
+extern "C"
+#endif
+
+/* We use char because int might match the return type of a gcc2
+   builtin and then its argument prototype would still apply.  */
+char initscr (void);
+
+int
+main (void)
+{
+
+/* The GNU C library defines stubs for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_initscr) || defined (__stub___initscr)
+#error found stub for initscr
+#endif
+
+	return initscr ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:5726: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5729: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:5732: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5735: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_initscr=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_func_initscr=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:5745: result: $ac_cv_func_initscr" >&5
+echo "${ECHO_T}$ac_cv_func_initscr" >&6
+if test $ac_cv_func_initscr = yes; then
+  eval 'cf_cv_have_lib_'$cf_nculib_root'=yes'
+else
+
+		cf_save_LIBS="$LIBS"
+		echo "$as_me:5752: checking for initscr in -l$cf_nculib_root" >&5
+echo $ECHO_N "checking for initscr in -l$cf_nculib_root... $ECHO_C" >&6
+		LIBS="-l$cf_nculib_root $LIBS"
+		cat >conftest.$ac_ext <<_ACEOF
+#line 5756 "configure"
+#include "confdefs.h"
+#include <${cf_cv_ncurses_header:-curses.h}>
+int
+main (void)
+{
+initscr()
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:5768: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5771: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:5774: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5777: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  echo "$as_me:5779: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+			 eval 'cf_cv_have_lib_'$cf_nculib_root'=yes'
+
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+echo "$as_me:5786: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+cf_search=
+cf_library_path_list=""
+if test -n "${LDFLAGS}${LIBS}" ; then
+	for cf_library_path in $LDFLAGS $LIBS
+	do
+		case $cf_library_path in
+		(-L*)
+			cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
+
+test "x$cf_library_path" != "xNONE" && \
+test -d "$cf_library_path" && \
+ {
+	test -n "$verbose" && echo "	... testing for lib-directories under $cf_library_path"
+	test -d $cf_library_path/lib &&          cf_search="$cf_search $cf_library_path/lib"
+	test -d $cf_library_path/lib/$cf_nculib_root &&       cf_search="$cf_search $cf_library_path/lib/$cf_nculib_root"
+	test -d $cf_library_path/lib/$cf_nculib_root/lib &&    cf_search="$cf_search $cf_library_path/lib/$cf_nculib_root/lib"
+	test -d $cf_library_path/$cf_nculib_root/lib &&       cf_search="$cf_search $cf_library_path/$cf_nculib_root/lib"
+	test -d $cf_library_path/$cf_nculib_root/lib/$cf_nculib_root &&    cf_search="$cf_search $cf_library_path/$cf_nculib_root/lib/$cf_nculib_root"
+}
+
+			cf_library_path_list="$cf_library_path_list $cf_search"
+			;;
+		esac
+	done
+fi
+
+cf_search=
+
+test "x$prefix" != "xNONE" && \
+test -d "$prefix" && \
+ {
+	test -n "$verbose" && echo "	... testing for lib-directories under $prefix"
+	test -d $prefix/lib &&          cf_search="$cf_search $prefix/lib"
+	test -d $prefix/lib/$cf_nculib_root &&       cf_search="$cf_search $prefix/lib/$cf_nculib_root"
+	test -d $prefix/lib/$cf_nculib_root/lib &&    cf_search="$cf_search $prefix/lib/$cf_nculib_root/lib"
+	test -d $prefix/$cf_nculib_root/lib &&       cf_search="$cf_search $prefix/$cf_nculib_root/lib"
+	test -d $prefix/$cf_nculib_root/lib/$cf_nculib_root &&    cf_search="$cf_search $prefix/$cf_nculib_root/lib/$cf_nculib_root"
+}
+
+for cf_subdir_prefix in \
+	/usr \
+	/usr/local \
+	/usr/pkg \
+	/opt \
+	/opt/local \
+	$HOME
+do
+
+test "x$cf_subdir_prefix" != "x$prefix" && \
+test -d "$cf_subdir_prefix" && \
+(test -z "$prefix" || test x$prefix = xNONE || test "x$cf_subdir_prefix" != "x$prefix") && {
+	test -n "$verbose" && echo "	... testing for lib-directories under $cf_subdir_prefix"
+	test -d $cf_subdir_prefix/lib &&          cf_search="$cf_search $cf_subdir_prefix/lib"
+	test -d $cf_subdir_prefix/lib/$cf_nculib_root &&       cf_search="$cf_search $cf_subdir_prefix/lib/$cf_nculib_root"
+	test -d $cf_subdir_prefix/lib/$cf_nculib_root/lib &&    cf_search="$cf_search $cf_subdir_prefix/lib/$cf_nculib_root/lib"
+	test -d $cf_subdir_prefix/$cf_nculib_root/lib &&       cf_search="$cf_search $cf_subdir_prefix/$cf_nculib_root/lib"
+	test -d $cf_subdir_prefix/$cf_nculib_root/lib/$cf_nculib_root &&    cf_search="$cf_search $cf_subdir_prefix/$cf_nculib_root/lib/$cf_nculib_root"
+}
+
+done
+
+cf_search="$cf_library_path_list $cf_search"
+
+			for cf_libdir in $cf_search
+			do
+				echo "$as_me:5854: checking for -l$cf_nculib_root in $cf_libdir" >&5
+echo $ECHO_N "checking for -l$cf_nculib_root in $cf_libdir... $ECHO_C" >&6
+				LIBS="-L$cf_libdir -l$cf_nculib_root $cf_save_LIBS"
+				cat >conftest.$ac_ext <<_ACEOF
+#line 5858 "configure"
+#include "confdefs.h"
+#include <${cf_cv_ncurses_header:-curses.h}>
+int
+main (void)
+{
+initscr()
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:5870: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5873: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:5876: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5879: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  echo "$as_me:5881: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+			 		 eval 'cf_cv_have_lib_'$cf_nculib_root'=yes'
+					 break
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+echo "$as_me:5888: result: no" >&5
+echo "${ECHO_T}no" >&6
+					 LIBS="$cf_save_LIBS"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+			done
+
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+
+fi
+
+eval 'cf_found_library=$cf_cv_have_lib_'$cf_nculib_root
+
+if test $cf_found_library = no ; then
+	{ { echo "$as_me:5903: error: Cannot link $cf_nculib_root library" >&5
+echo "$as_me: error: Cannot link $cf_nculib_root library" >&2;}
+   { (exit 1); exit 1; }; }
+fi
+
+fi
+
+if test -n "$cf_ncurses_LIBS" ; then
+	echo "$as_me:5911: checking if we can link $cf_nculib_root without $cf_ncurses_LIBS" >&5
+echo $ECHO_N "checking if we can link $cf_nculib_root without $cf_ncurses_LIBS... $ECHO_C" >&6
+	cf_ncurses_SAVE="$LIBS"
+	for p in $cf_ncurses_LIBS ; do
+		q=`echo $LIBS | sed -e "s%$p %%" -e "s%$p$%%"`
+		if test "$q" != "$LIBS" ; then
+			LIBS="$q"
+		fi
+	done
+	cat >conftest.$ac_ext <<_ACEOF
+#line 5921 "configure"
+#include "confdefs.h"
+#include <${cf_cv_ncurses_header:-curses.h}>
+int
+main (void)
+{
+initscr(); mousemask(0,0); tgoto((char *)0, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:5933: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:5936: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:5939: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:5942: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  echo "$as_me:5944: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+echo "$as_me:5949: result: no" >&5
+echo "${ECHO_T}no" >&6
+		 LIBS="$cf_ncurses_SAVE"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+
+cf_nculib_ROOT=`echo "HAVE_LIB$cf_nculib_root" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
+
+cat >>confdefs.h <<EOF
+#define $cf_nculib_ROOT 1
+EOF
+
+	fi
+else
+	NCURSES_CONFIG=none
+fi
+
+echo "$as_me:5967: checking if you want wide-character code" >&5
 echo $ECHO_N "checking if you want wide-character code... $ECHO_C" >&6
 
 # Check whether --enable-widec or --disable-widec was given.
@@ -3664,11 +5974,11 @@ if test "${enable_widec+set}" = set; then
 else
   with_widec=no
 fi;
-echo "$as_me:3667: result: $with_widec" >&5
+echo "$as_me:5977: result: $with_widec" >&5
 echo "${ECHO_T}$with_widec" >&6
 if test "$with_widec" = yes ; then
 
-echo "$as_me:3671: checking for multibyte character support" >&5
+echo "$as_me:5981: checking for multibyte character support" >&5
 echo $ECHO_N "checking for multibyte character support... $ECHO_C" >&6
 if test "${cf_cv_utf8_lib+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -3676,12 +5986,12 @@ else
 
 	cf_save_LIBS="$LIBS"
 	cat >conftest.$ac_ext <<_ACEOF
-#line 3679 "configure"
+#line 5989 "configure"
 #include "confdefs.h"
 
 #include <stdlib.h>
 int
-main ()
+main (void)
 {
 putwc(0,0);
   ;
@@ -3689,16 +5999,16 @@ putwc(0,0);
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3692: \"$ac_link\"") >&5
+if { (eval echo "$as_me:6002: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3695: \$? = $ac_status" >&5
+  echo "$as_me:6005: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3698: \"$ac_try\"") >&5
+  { (eval echo "$as_me:6008: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3701: \$? = $ac_status" >&5
+  echo "$as_me:6011: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_utf8_lib=yes
 else
@@ -3710,17 +6020,17 @@ cat conftest.$ac_ext >&5
 cf_cv_header_path_utf8=
 cf_cv_library_path_utf8=
 
-echo "${as_me:-configure}:3713: testing Starting FIND_LINKAGE(utf8,) ..." 1>&5
+echo "${as_me:-configure}:6023: testing Starting FIND_LINKAGE(utf8,) ..." 1>&5
 
 cf_save_LIBS="$LIBS"
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 3718 "configure"
+#line 6028 "configure"
 #include "confdefs.h"
 
 #include <libutf8.h>
 int
-main ()
+main (void)
 {
 putwc(0,0);
   ;
@@ -3728,16 +6038,16 @@ putwc(0,0);
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3731: \"$ac_link\"") >&5
+if { (eval echo "$as_me:6041: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3734: \$? = $ac_status" >&5
+  echo "$as_me:6044: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3737: \"$ac_try\"") >&5
+  { (eval echo "$as_me:6047: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3740: \$? = $ac_status" >&5
+  echo "$as_me:6050: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
 
 	cf_cv_find_linkage_utf8=yes
@@ -3751,12 +6061,12 @@ cat conftest.$ac_ext >&5
 LIBS="-lutf8  $cf_save_LIBS"
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 3754 "configure"
+#line 6064 "configure"
 #include "confdefs.h"
 
 #include <libutf8.h>
 int
-main ()
+main (void)
 {
 putwc(0,0);
   ;
@@ -3764,16 +6074,16 @@ putwc(0,0);
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3767: \"$ac_link\"") >&5
+if { (eval echo "$as_me:6077: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3770: \$? = $ac_status" >&5
+  echo "$as_me:6080: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3773: \"$ac_try\"") >&5
+  { (eval echo "$as_me:6083: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3776: \$? = $ac_status" >&5
+  echo "$as_me:6086: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
 
 	cf_cv_find_linkage_utf8=yes
@@ -3788,14 +6098,14 @@ cat conftest.$ac_ext >&5
 	cf_cv_find_linkage_utf8=no
 	LIBS="$cf_save_LIBS"
 
-    test -n "$verbose" && echo "	find linkage for utf8 library" 1>&6
+	test -n "$verbose" && echo "	find linkage for utf8 library" 1>&6
 
-echo "${as_me:-configure}:3793: testing find linkage for utf8 library ..." 1>&5
+echo "${as_me:-configure}:6103: testing find linkage for utf8 library ..." 1>&5
 
-echo "${as_me:-configure}:3795: testing Searching for headers in FIND_LINKAGE(utf8,) ..." 1>&5
+echo "${as_me:-configure}:6105: testing Searching for headers in FIND_LINKAGE(utf8,) ..." 1>&5
 
-    cf_save_CPPFLAGS="$CPPFLAGS"
-    cf_test_CPPFLAGS="$CPPFLAGS"
+	cf_save_CPPFLAGS="$CPPFLAGS"
+	cf_test_CPPFLAGS="$CPPFLAGS"
 
 cf_search=
 
@@ -3804,8 +6114,8 @@ cf_header_path_list=""
 if test -n "${CFLAGS}${CPPFLAGS}" ; then
 	for cf_header_path in $CPPFLAGS $CFLAGS
 	do
-		case $cf_header_path in #(vi
-		-I*)
+		case $cf_header_path in
+		(-I*)
 			cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
 
 test "x$cf_header_path" != "xNONE" && \
@@ -3829,17 +6139,6 @@ fi
 
 cf_search=
 
-test "x/usr" != "x$prefix" && \
-test -d "/usr" && \
-(test -z "$prefix" || test x$prefix = xNONE || test "x/usr" != "x$prefix") && {
-	test -n "$verbose" && echo "	... testing for include-directories under /usr"
-	test -d /usr/include &&          cf_search="$cf_search /usr/include"
-	test -d /usr/include/utf8 &&       cf_search="$cf_search /usr/include/utf8"
-	test -d /usr/include/utf8/include &&    cf_search="$cf_search /usr/include/utf8/include"
-	test -d /usr/utf8/include &&       cf_search="$cf_search /usr/utf8/include"
-	test -d /usr/utf8/include/utf8 &&    cf_search="$cf_search /usr/utf8/include/utf8"
-}
-
 test "x$prefix" != "xNONE" && \
 test -d "$prefix" && \
  {
@@ -3851,38 +6150,27 @@ test -d "$prefix" && \
 	test -d $prefix/utf8/include/utf8 &&    cf_search="$cf_search $prefix/utf8/include/utf8"
 }
 
-test "x/usr/local" != "x$prefix" && \
-test -d "/usr/local" && \
-(test -z "$prefix" || test x$prefix = xNONE || test "x/usr/local" != "x$prefix") && {
-	test -n "$verbose" && echo "	... testing for include-directories under /usr/local"
-	test -d /usr/local/include &&          cf_search="$cf_search /usr/local/include"
-	test -d /usr/local/include/utf8 &&       cf_search="$cf_search /usr/local/include/utf8"
-	test -d /usr/local/include/utf8/include &&    cf_search="$cf_search /usr/local/include/utf8/include"
-	test -d /usr/local/utf8/include &&       cf_search="$cf_search /usr/local/utf8/include"
-	test -d /usr/local/utf8/include/utf8 &&    cf_search="$cf_search /usr/local/utf8/include/utf8"
-}
+for cf_subdir_prefix in \
+	/usr \
+	/usr/local \
+	/usr/pkg \
+	/opt \
+	/opt/local \
+	$HOME
+do
 
-test "x/opt" != "x$prefix" && \
-test -d "/opt" && \
-(test -z "$prefix" || test x$prefix = xNONE || test "x/opt" != "x$prefix") && {
-	test -n "$verbose" && echo "	... testing for include-directories under /opt"
-	test -d /opt/include &&          cf_search="$cf_search /opt/include"
-	test -d /opt/include/utf8 &&       cf_search="$cf_search /opt/include/utf8"
-	test -d /opt/include/utf8/include &&    cf_search="$cf_search /opt/include/utf8/include"
-	test -d /opt/utf8/include &&       cf_search="$cf_search /opt/utf8/include"
-	test -d /opt/utf8/include/utf8 &&    cf_search="$cf_search /opt/utf8/include/utf8"
+test "x$cf_subdir_prefix" != "x$prefix" && \
+test -d "$cf_subdir_prefix" && \
+(test -z "$prefix" || test x$prefix = xNONE || test "x$cf_subdir_prefix" != "x$prefix") && {
+	test -n "$verbose" && echo "	... testing for include-directories under $cf_subdir_prefix"
+	test -d $cf_subdir_prefix/include &&          cf_search="$cf_search $cf_subdir_prefix/include"
+	test -d $cf_subdir_prefix/include/utf8 &&       cf_search="$cf_search $cf_subdir_prefix/include/utf8"
+	test -d $cf_subdir_prefix/include/utf8/include &&    cf_search="$cf_search $cf_subdir_prefix/include/utf8/include"
+	test -d $cf_subdir_prefix/utf8/include &&       cf_search="$cf_search $cf_subdir_prefix/utf8/include"
+	test -d $cf_subdir_prefix/utf8/include/utf8 &&    cf_search="$cf_search $cf_subdir_prefix/utf8/include/utf8"
 }
 
-test "x$HOME" != "x$prefix" && \
-test -d "$HOME" && \
-(test -z "$prefix" || test x$prefix = xNONE || test "x$HOME" != "x$prefix") && {
-	test -n "$verbose" && echo "	... testing for include-directories under $HOME"
-	test -d $HOME/include &&          cf_search="$cf_search $HOME/include"
-	test -d $HOME/include/utf8 &&       cf_search="$cf_search $HOME/include/utf8"
-	test -d $HOME/include/utf8/include &&    cf_search="$cf_search $HOME/include/utf8/include"
-	test -d $HOME/utf8/include &&       cf_search="$cf_search $HOME/utf8/include"
-	test -d $HOME/utf8/include/utf8 &&    cf_search="$cf_search $HOME/utf8/include/utf8"
-}
+done
 
 test "$includedir" != NONE && \
 test "$includedir" != "/usr/include" && \
@@ -3900,21 +6188,25 @@ test -d "$oldincludedir" && {
 
 cf_search="$cf_search $cf_header_path_list"
 
-    for cf_cv_header_path_utf8 in $cf_search
-    do
-      if test -d $cf_cv_header_path_utf8 ; then
-        test -n "$verbose" && echo "	... testing $cf_cv_header_path_utf8" 1>&6
+	for cf_cv_header_path_utf8 in $cf_search
+	do
+		if test -d $cf_cv_header_path_utf8 ; then
+			test -n "$verbose" && echo "	... testing $cf_cv_header_path_utf8" 1>&6
+
+echo "${as_me:-configure}:6196: testing ... testing $cf_cv_header_path_utf8 ..." 1>&5
 
-echo "${as_me:-configure}:3908: testing ... testing $cf_cv_header_path_utf8 ..." 1>&5
+			CPPFLAGS="$cf_save_CPPFLAGS"
 
-        CPPFLAGS="$cf_save_CPPFLAGS -I$cf_cv_header_path_utf8"
-        cat >conftest.$ac_ext <<_ACEOF
-#line 3912 "configure"
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}-I$cf_cv_header_path_utf8"
+
+			cat >conftest.$ac_ext <<_ACEOF
+#line 6204 "configure"
 #include "confdefs.h"
 
 #include <libutf8.h>
 int
-main ()
+main (void)
 {
 putwc(0,0);
   ;
@@ -3922,52 +6214,52 @@ putwc(0,0);
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3925: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:6217: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3928: \$? = $ac_status" >&5
+  echo "$as_me:6220: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3931: \"$ac_try\"") >&5
+  { (eval echo "$as_me:6223: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3934: \$? = $ac_status" >&5
+  echo "$as_me:6226: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
 
-            test -n "$verbose" && echo "	... found utf8 headers in $cf_cv_header_path_utf8" 1>&6
+				test -n "$verbose" && echo "	... found utf8 headers in $cf_cv_header_path_utf8" 1>&6
 
-echo "${as_me:-configure}:3939: testing ... found utf8 headers in $cf_cv_header_path_utf8 ..." 1>&5
+echo "${as_me:-configure}:6231: testing ... found utf8 headers in $cf_cv_header_path_utf8 ..." 1>&5
 
-            cf_cv_find_linkage_utf8=maybe
-            cf_test_CPPFLAGS="$CPPFLAGS"
-            break
+				cf_cv_find_linkage_utf8=maybe
+				cf_test_CPPFLAGS="$CPPFLAGS"
+				break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
 
-            CPPFLAGS="$cf_save_CPPFLAGS"
+				CPPFLAGS="$cf_save_CPPFLAGS"
 
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
-      fi
-    done
+		fi
+	done
 
-    if test "$cf_cv_find_linkage_utf8" = maybe ; then
+	if test "$cf_cv_find_linkage_utf8" = maybe ; then
 
-echo "${as_me:-configure}:3957: testing Searching for utf8 library in FIND_LINKAGE(utf8,) ..." 1>&5
+echo "${as_me:-configure}:6249: testing Searching for utf8 library in FIND_LINKAGE(utf8,) ..." 1>&5
 
-      cf_save_LIBS="$LIBS"
-      cf_save_LDFLAGS="$LDFLAGS"
+		cf_save_LIBS="$LIBS"
+		cf_save_LDFLAGS="$LDFLAGS"
 
-      if test "$cf_cv_find_linkage_utf8" != yes ; then
+		if test "$cf_cv_find_linkage_utf8" != yes ; then
 
 cf_search=
 cf_library_path_list=""
 if test -n "${LDFLAGS}${LIBS}" ; then
 	for cf_library_path in $LDFLAGS $LIBS
 	do
-		case $cf_library_path in #(vi
-		-L*)
+		case $cf_library_path in
+		(-L*)
 			cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
 
 test "x$cf_library_path" != "xNONE" && \
@@ -3989,17 +6281,6 @@ fi
 
 cf_search=
 
-test "x/usr" != "x$prefix" && \
-test -d "/usr" && \
-(test -z "$prefix" || test x$prefix = xNONE || test "x/usr" != "x$prefix") && {
-	test -n "$verbose" && echo "	... testing for lib-directories under /usr"
-	test -d /usr/lib &&          cf_search="$cf_search /usr/lib"
-	test -d /usr/lib/utf8 &&       cf_search="$cf_search /usr/lib/utf8"
-	test -d /usr/lib/utf8/lib &&    cf_search="$cf_search /usr/lib/utf8/lib"
-	test -d /usr/utf8/lib &&       cf_search="$cf_search /usr/utf8/lib"
-	test -d /usr/utf8/lib/utf8 &&    cf_search="$cf_search /usr/utf8/lib/utf8"
-}
-
 test "x$prefix" != "xNONE" && \
 test -d "$prefix" && \
  {
@@ -4011,58 +6292,47 @@ test -d "$prefix" && \
 	test -d $prefix/utf8/lib/utf8 &&    cf_search="$cf_search $prefix/utf8/lib/utf8"
 }
 
-test "x/usr/local" != "x$prefix" && \
-test -d "/usr/local" && \
-(test -z "$prefix" || test x$prefix = xNONE || test "x/usr/local" != "x$prefix") && {
-	test -n "$verbose" && echo "	... testing for lib-directories under /usr/local"
-	test -d /usr/local/lib &&          cf_search="$cf_search /usr/local/lib"
-	test -d /usr/local/lib/utf8 &&       cf_search="$cf_search /usr/local/lib/utf8"
-	test -d /usr/local/lib/utf8/lib &&    cf_search="$cf_search /usr/local/lib/utf8/lib"
-	test -d /usr/local/utf8/lib &&       cf_search="$cf_search /usr/local/utf8/lib"
-	test -d /usr/local/utf8/lib/utf8 &&    cf_search="$cf_search /usr/local/utf8/lib/utf8"
-}
+for cf_subdir_prefix in \
+	/usr \
+	/usr/local \
+	/usr/pkg \
+	/opt \
+	/opt/local \
+	$HOME
+do
 
-test "x/opt" != "x$prefix" && \
-test -d "/opt" && \
-(test -z "$prefix" || test x$prefix = xNONE || test "x/opt" != "x$prefix") && {
-	test -n "$verbose" && echo "	... testing for lib-directories under /opt"
-	test -d /opt/lib &&          cf_search="$cf_search /opt/lib"
-	test -d /opt/lib/utf8 &&       cf_search="$cf_search /opt/lib/utf8"
-	test -d /opt/lib/utf8/lib &&    cf_search="$cf_search /opt/lib/utf8/lib"
-	test -d /opt/utf8/lib &&       cf_search="$cf_search /opt/utf8/lib"
-	test -d /opt/utf8/lib/utf8 &&    cf_search="$cf_search /opt/utf8/lib/utf8"
+test "x$cf_subdir_prefix" != "x$prefix" && \
+test -d "$cf_subdir_prefix" && \
+(test -z "$prefix" || test x$prefix = xNONE || test "x$cf_subdir_prefix" != "x$prefix") && {
+	test -n "$verbose" && echo "	... testing for lib-directories under $cf_subdir_prefix"
+	test -d $cf_subdir_prefix/lib &&          cf_search="$cf_search $cf_subdir_prefix/lib"
+	test -d $cf_subdir_prefix/lib/utf8 &&       cf_search="$cf_search $cf_subdir_prefix/lib/utf8"
+	test -d $cf_subdir_prefix/lib/utf8/lib &&    cf_search="$cf_search $cf_subdir_prefix/lib/utf8/lib"
+	test -d $cf_subdir_prefix/utf8/lib &&       cf_search="$cf_search $cf_subdir_prefix/utf8/lib"
+	test -d $cf_subdir_prefix/utf8/lib/utf8 &&    cf_search="$cf_search $cf_subdir_prefix/utf8/lib/utf8"
 }
 
-test "x$HOME" != "x$prefix" && \
-test -d "$HOME" && \
-(test -z "$prefix" || test x$prefix = xNONE || test "x$HOME" != "x$prefix") && {
-	test -n "$verbose" && echo "	... testing for lib-directories under $HOME"
-	test -d $HOME/lib &&          cf_search="$cf_search $HOME/lib"
-	test -d $HOME/lib/utf8 &&       cf_search="$cf_search $HOME/lib/utf8"
-	test -d $HOME/lib/utf8/lib &&    cf_search="$cf_search $HOME/lib/utf8/lib"
-	test -d $HOME/utf8/lib &&       cf_search="$cf_search $HOME/utf8/lib"
-	test -d $HOME/utf8/lib/utf8 &&    cf_search="$cf_search $HOME/utf8/lib/utf8"
-}
+done
 
 cf_search="$cf_library_path_list $cf_search"
 
-        for cf_cv_library_path_utf8 in $cf_search
-        do
-          if test -d $cf_cv_library_path_utf8 ; then
-            test -n "$verbose" && echo "	... testing $cf_cv_library_path_utf8" 1>&6
+			for cf_cv_library_path_utf8 in $cf_search
+			do
+				if test -d $cf_cv_library_path_utf8 ; then
+					test -n "$verbose" && echo "	... testing $cf_cv_library_path_utf8" 1>&6
 
-echo "${as_me:-configure}:4054: testing ... testing $cf_cv_library_path_utf8 ..." 1>&5
+echo "${as_me:-configure}:6324: testing ... testing $cf_cv_library_path_utf8 ..." 1>&5
 
-            CPPFLAGS="$cf_test_CPPFLAGS"
-            LIBS="-lutf8  $cf_save_LIBS"
-            LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_utf8"
-            cat >conftest.$ac_ext <<_ACEOF
-#line 4060 "configure"
+					CPPFLAGS="$cf_test_CPPFLAGS"
+					LIBS="-lutf8  $cf_save_LIBS"
+					LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_utf8"
+					cat >conftest.$ac_ext <<_ACEOF
+#line 6330 "configure"
 #include "confdefs.h"
 
 #include <libutf8.h>
 int
-main ()
+main (void)
 {
 putwc(0,0);
   ;
@@ -4070,44 +6340,44 @@ putwc(0,0);
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:4073: \"$ac_link\"") >&5
+if { (eval echo "$as_me:6343: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:4076: \$? = $ac_status" >&5
+  echo "$as_me:6346: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:4079: \"$ac_try\"") >&5
+  { (eval echo "$as_me:6349: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4082: \$? = $ac_status" >&5
+  echo "$as_me:6352: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
 
-                test -n "$verbose" && echo "	... found utf8 library in $cf_cv_library_path_utf8" 1>&6
+					test -n "$verbose" && echo "	... found utf8 library in $cf_cv_library_path_utf8" 1>&6
 
-echo "${as_me:-configure}:4087: testing ... found utf8 library in $cf_cv_library_path_utf8 ..." 1>&5
+echo "${as_me:-configure}:6357: testing ... found utf8 library in $cf_cv_library_path_utf8 ..." 1>&5
 
-                cf_cv_find_linkage_utf8=yes
-                cf_cv_library_file_utf8="-lutf8"
-                break
+					cf_cv_find_linkage_utf8=yes
+					cf_cv_library_file_utf8="-lutf8"
+					break
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
 
-                CPPFLAGS="$cf_save_CPPFLAGS"
-                LIBS="$cf_save_LIBS"
-                LDFLAGS="$cf_save_LDFLAGS"
+					CPPFLAGS="$cf_save_CPPFLAGS"
+					LIBS="$cf_save_LIBS"
+					LDFLAGS="$cf_save_LDFLAGS"
 
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
-          fi
-        done
-        CPPFLAGS="$cf_save_CPPFLAGS"
-        LDFLAGS="$cf_save_LDFLAGS"
-      fi
+				fi
+			done
+			CPPFLAGS="$cf_save_CPPFLAGS"
+			LDFLAGS="$cf_save_LDFLAGS"
+		fi
 
-    else
-      cf_cv_find_linkage_utf8=no
-    fi
+	else
+		cf_cv_find_linkage_utf8=no
+	fi
 
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
@@ -4126,7 +6396,7 @@ fi
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:4129: result: $cf_cv_utf8_lib" >&5
+echo "$as_me:6399: result: $cf_cv_utf8_lib" >&5
 echo "${ECHO_T}$cf_cv_utf8_lib" >&6
 
 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
@@ -4159,13 +6429,16 @@ if test -n "$cf_cv_header_path_utf8" ; then
 			if test "$GCC" = yes
 			then
 			  cf_save_CPPFLAGS=$CPPFLAGS
-			  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
+
+	test -n "$CPPFLAGS" && CPPFLAGS="$CPPFLAGS "
+	CPPFLAGS="${CPPFLAGS}-I$cf_add_incdir"
+
 			  cat >conftest.$ac_ext <<_ACEOF
-#line 4164 "configure"
+#line 6437 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int
-main ()
+main (void)
 {
 printf("Hello")
   ;
@@ -4173,16 +6446,16 @@ printf("Hello")
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4176: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:6449: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4179: \$? = $ac_status" >&5
+  echo "$as_me:6452: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4182: \"$ac_try\"") >&5
+  { (eval echo "$as_me:6455: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4185: \$? = $ac_status" >&5
+  echo "$as_me:6458: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   :
 else
@@ -4199,7 +6472,7 @@ rm -f conftest.$ac_objext conftest.$ac_ext
 		if test "$cf_have_incdir" = no ; then
 		  test -n "$verbose" && echo "	adding $cf_add_incdir to include-path" 1>&6
 
-echo "${as_me:-configure}:4202: testing adding $cf_add_incdir to include-path ..." 1>&5
+echo "${as_me:-configure}:6475: testing adding $cf_add_incdir to include-path ..." 1>&5
 
 		  CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
 
@@ -4209,51 +6482,375 @@ echo "${as_me:-configure}:4202: testing