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-------------------------------------------------------------------------------
-- Copyright 2018-2020,2021 Thomas E. Dickey                                 --
-- Copyright 1998-2017,2018 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"), to deal in the Software without restriction, including       --
-- without limitation the rights to use, copy, modify, merge, publish,       --
-- distribute, distribute with modifications, sublicense, and/or sell copies --
-- of the Software, and to permit persons to whom the Software is furnished  --
-- to do so, subject to the following conditions:                            --
--                                                                           --
-- The above copyright notice and this permission notice shall be included   --
-- in all copies or substantial portions of the Software.                    --
--                                                                           --
-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS   --
-- OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF                --
-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN --
-- NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,       --
-- DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR     --
-- OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE --
-- USE OR OTHER DEALINGS IN THE SOFTWARE.                                    --
--                                                                           --
-- Except as contained in this notice, the name(s) of the above copyright    --
-- holders shall not be used in advertising or otherwise to promote the      --
-- sale, use or other dealings in this Software without prior written        --
-- authorization.                                                            --
-------------------------------------------------------------------------------
-- $Id: NEWS,v 1.3634 2021/02/21 00:18:55 tom Exp $
-------------------------------------------------------------------------------

This is a log of changes that ncurses has gone through since Zeyd started
working with Pavel Curtis' original work, pcurses, in 1992.

Changes through 1.9.9e are recorded by Zeyd M Ben-Halim.
Changes since 1.9.9e are recorded by Thomas E Dickey.

Contributors include those who have provided patches (even small ones), as well
as those who provide useful information (bug reports, analyses).  Changes with
no cited author are the work of Thomas E Dickey (TD).

A few contributors may be cited in this file by their initials.
Each accounts for half of one percent or more of the changes since 1.9.9e.
See the AUTHORS file for the corresponding full names.

Changes through 1.9.9e did not credit all contributions;
it is not possible to add this information.

20210220
	+ improve tic warning when oc/op do not mention SGR 39/49 for xterm
	  compatible XT flag.
	+ revert change to lib_addch.c in waddch_literal() from 20210130, since
	  the followup fix in PutCharLR() actually corrects the problem while
	  this change causes too-early filling/wrapping (report by Johannes
	  Altmanninger).
	+ add/use vt220+pcedit and vt220+vtedit  -TD
	+ add scrt/securecrt and absolute -TD
	+ add nel to xterm-new, though supported since X11R5 -TD
	+ add/use xterm+nofkeys -TD
	+ move use of ecma+italics from xterm-basic to xterm+nofkeys -TD

20210213
	+ add test/back_ground.c, to exercise the wide-character background
	  functions.
	+ add a check in _nc_build_wch() in case the background character is a
	  wide-character, rather than a new part of a multibyte character.
	+ improve tracemunch's coverage of form/menu/panel libraries.
	+ improve tracemunch's checking/reporting the type for the first
	  parameter, e.g., "WINDOW*" rather than "#1".

20210206
	+ provide for wide-characters as background character in wbkgrnd
	  (report/testcase by Anton Vidovic)
	+ add name for Fedora's pcre2 to configure check for "--with-pcre2"
	  option, from xterm #363 -TD
	+ modify adjustment in PutCharLR to restore the cursor position before
	  writing to the lower-right corner, rather than decrementing the
	  cursor column, in case it was a double-width character (cf: 20210130).

20210130
	+ correct an off-by-one in comparison in waddch_literal() which caused
	  scrolling when a double-cell character would not fit at the lower
	  right corner of the screen (report by Benno Schulenberg).
	+ split-out att610+cvis, vt220+cvis, vt220+cvis8 -TD
	+ add vt220-base, for terminal emulators which generally have not
	  supported att610's blinking cursor control -TD
	+ use vt220+cvis in vt220, etc -TD
	+ use att610+cvis, xterm+tmux and ansi+enq in kitty -TD
	+ use vt220+cvis in st, terminology, termite since they ignore
	  blinking-cursor detail in att610+cvis -TD

20210123
	+ modify package/config scripts to provide an explicit -L option for
	  cases when the loader search path has other directories preceding
	  the one in which ncurses is installed (report by Yuri Victorovich).
	+ minor build-fixes in configure script and makefiles to work around
	  quirks of pmake.

20210116
	+ add comment for linux2.6 regarding CONFIG_CONSOLE_TRANSLATIONS
	  (report by Patrick McDermott) -TD
	+ make opts extension for getcchar work as documented for ncurses 6.1,
	  adding "-g" flag to test/demo_new_pair to illustrate.

20210109
	+ fix errata in man/ncurses.3x from recent updates.
	+ improve quoting/escaping in configure script, uses some features of
	  autoconf 2.52.20210105

20210102
	+ update man/curs_memleaks.3x, to include <term.h> which declares
	  exit_terminfo.
	+ clarify man/curs_terminfo.3x, to mention why the macro setterm is
	  defined in <curses.h>, and remove it from the list of prototypes
	  (prompted by patch by Graeme McCutcheon).
	+ amend man/curs_terminfo.3x, to note that <curses.h> is required
	  for certain functions, e.g., those using chtype or attr_t for
	  types, as well as mvcur (cf: 20201031).
	+ use parameter-names in prototypes in curs_sp_funcs.3x, for
	  consistency with other manpages.

20201227
	+ update terminology entry to 1.8.1 -TD
	+ fix some compiler-warnings which gcc8 reports incorrectly.

20201219
	+ suppress hyphenation in generated html for manpages, to address
	  regression in upgrade of groff 1.22.2 to 1.22.3.
	+ fix inconsistent sort-order in see-also sections of manpages (report
	  by Chris Bennett).

20201212
	+ improve manual pages for form field-types.

20201205
	+ amend build-fixes for gnat 10 to work with certain systems lacking
	  gprbuild (cf: 20200627).
	+ eliminate an additional strlen and wsclen.
	+ eliminate an unnecessary strlen in waddnstr() (suggested by Benjamin
	  Abendroth).
	+ modify inopts manpage, separating the items for nodelay and notimeout
	  (patch by Benno Schulenberg).
	+ correct mlterm3 kf1-kf4 (Debian #975322) -TD
	+ add flash to mlterm3 -TD

20201128
	+ add Smulx to alacritty (Christian Duerr).
	+ add rep to PuTTY -TD
	+ add putty+keypad -TD
	+ add another fflush(stdout) in _nc_flush() to handle time-delays in
	  the middle of strings such as flash when the application uses
	  low-level calls rather than curses (cf: 20161217).
	+ modify configure check for c89/c99 aliases of clang to use its
	  -std option instead, because some platforms, in particular macOS,
	  do not provide workable c89/c99 aliases.

20201121
	+ fix some compiler-warnings in experimental Windows-10 driver.
	+ add the definitions needed in recent configure-check for clang
	  (report by Steven Pitman).

20201114
	+ fix some compiler-warnings in experimental Windows-10 driver.
	+ modify a check for parameters in terminfo capabilities to handle the
	  special case where short extended capability strings were not
	  converted from terminfo to termcap format.
	+ modify CF_MIXEDCASE_FILENAMES macro, adding darwin as special case
	  when cross-compiling (report by Eli Rykoff).

20201107
	+ update kitty+common -TD
	+ add putty+screen and putty-screen (suggested by Alexandre Montaron).
	+ explain in ncurses.3x that functions in the tinfo library do not rely
	  upon wide-characters (prompted by discussion with Reuben Thomas).

20201031
	+ modify MKterm.h.in so that it is not necessary to include <curses.h>
	  before <term.h> (prompted by discussion with Reuben Thomas).
	+ review/improve synopsis for curs_sp_funcs.3x (prompted by discussion
	  with Reuben Thomas).
	+ improve format of output in tic's check_infotocap() function, to
	  ensure that the messages contain only printable text.
	+ modify configure-check for clang to verify that -Qunused-arguments
	  is supported.  IBM's xlclang does not support it (report by Steven
	  Pitman).

20201024
	+ provide workaround configure-check for bool when cross-compiling.
	+ fix a potential indexing error in _nc_parse_entry(), seen with
	  Herlim's test data using address-sanitizer.
	+ change a null-pointer check in set_curterm to a valid-string check,
	  needed in to tic's use-resolution when pad_char is cancelled
	  (report/testcase by Robert Sebastian Herlim)
	+ improve tic's -c option to validate the number and type of parameters
	  and compare against expected number/type before deciding which set of
	  parameter-lists to use in tparm calls (report/testcase by Robert
	  Sebastian Herlim).
	+ fix a link for tabs.1 manpage in announce.html.in (report by Nick
	  Black), as well as some fixes via linklint.

20201017
	+ improve manpage typography.
	+ improve discussion in curs_addch.3x of the use of unctrl to display
	  nonprintable characters.
	+ add a note in terminfo.5 explaining that no-parameter strings such
	  as sgr0 or cnorm should not be used with tparm.

20201010
	+ correct sgr in aaa+rv (report by Florian Weimer) -TD
	+ fix some sgr inconsistencies in d230c, ibm6153, ibm6154,
	  ncrvt100an -TD
	+ improve tic's check for errors detected in tparm (prompted by
	  discussion with Florian Weimer).
	+ set output-mode to binary in experimental Windows-10 driver (Juergen
	  Pfeifer).

20201003
	+ remove output-related checks for nl/nonl (report by Leon Winter).
	+ change tmux's kbs to ^? (report by Premysl Eric Janouch)
	+ simplify mlterm initialization with DECSTR -TD
	+ fix a typo in man/curs_terminfo.3 (Reuben Thomas).
	+ add tmux-direct (tmux #2370, Debian #895754)
	+ add user-defined capabilities from mintty to Caps-ncurses, for
	  checking consistency with tic.

20200926
	+ correct configure-check for gnurx library.
	+ regenerate llib-* files.
	+ modify tracemunch and the panel library to show readable traces for
	  panel- and user-pointers.

20200919
	+ update mlterm3 for 3.9.0 (report by Premysl Eric Janouch) -TD

20200918
	+ corrected condition for appending curses.events to the generated
	  curses.h (report by Sven Joachim, Debian #970545).

20200912
	+ add configure-check for systre/tre with mingw configuration, to get
	  the library-dependencies as seen in msys2 configuration for mingw64.
	+ build-fixes for the win32-driver configuration.
	+ use more defensive binary mode setting for Win32 (Juergen Pfeifer).

20200907
	+ fix regression in setupterm validating non-empty $TERM (report by
	  Soren Tempel).

20200906
	+ merge/adapt in-progress work by Juergen Pfeifer for new version of
	  win32-driver.
	+ correct description of vt330/vt340 (Ross Combs).

20200831
	+ build-fix for awk-scripts modified for win32-driver (report by Werner
	  Fink).

20200829
	+ remove a redundant NCURSES_EXPORT as a build-fix for "Maarten
	  Anonymous".
	+ merge/adapt in-progress work by Juergen Pfeifer for new version of
	  win32-driver.
	+ modify configure script, moving gcc -Werror options to EXTRA_CFLAGS
	  to avoid breaking configure-checks (adapted from ongoing work on
	  mawk and lynx).
	> errata for terminfo.src (report by Florian Weimer):
	+ correct icl6404 csr
	+ correct ti916 cup
	+ improve ndr9500

20200822
	+ improve version-number extraction in MKlib_gen.sh
	+ make the test-package for manpages installable by adjusting the
	  man_db.renames file.
	+ correct an off-by-one loop-limit in convert_strings function
	  (report by Yue Tai).
	+ add CF_SHARED_OPTS cases for HPE NonStop systems (Randall S Becker).
	+ modify CF_SHARED_OPTS case for NetBSD to use the same "-shared"
	  option for the non-rpath case as for the rpath case, to allow gcc to
	  provide suitable runtime initialization (report by Rajeev V Pillai).

20200817
	+ reduce build-warnings by excluding ncurses-internals from deprecation
	  warnings.
	+ mark wgetch-events feature as deprecated.
	+ add definition for $(LIBS) to ncurses/Makefile.in, to simplify builds
	  using the string-hacks option.
	+ prevent KEY_EVENT from appearing in curses.h unless the configure
	  option --enable-wgetch-events is used (report by Werner Fink).

20200816
	+ amend tic/infocmp check to allow for the respective tool's absence
	  (report by Steve Wills, cf: 20200808).
	+ improved some of the build-scripts with shellcheck
	+ filter out -MT/-MD/-MTd/-MDd options in script for Visual Studio C++
	  (discussion with "Maarten Anonymous").

20200808
	+ improve discussion of the system's tic utility when used as part
	  of cross-compiling (discussion with Keith Marshall).
	+ modify configuration checks for build-time tic/infocmp to use
	  AC_CHECK_TOOL. That can still be overridden by --with-tic-path and
	  --with-infocmp-path when fallbacks are used, but even if not using
	  fallbacks, the improved check may help with cross-compiling
	  (discussion with Keith Marshall).
	+ other build-fixes for Ada95 with MinGW.
	+ modify Ada95 source-generation utility to write to a file given as
	  parameter rather than to the standard output, allowing builds with
	  MinGW.

20200801
	+ remove remaining parts of checks for ISC Unix (cf: 20121006).
	+ add user32.lib to LDFLAGS for Visual Studio C++ configuration
	  (discussion with "Maarten Anonymous").
	+ modify MKkey_defs.sh to hide ncurses' definition of KEY_EVENTS to
	  reduce Visual Studio C++ redefinition warnings.
	+ improve/update checks for external functions in test/configure

20200725
	+ set LINK_TESTS in CF_SHARED_OPTS for msvc (patch by
	  "Maarten Anonymous")
	+ improved workaround for redefinition-warnings for KEY_EVENT.
	+ improve man/term.5 section on legacy storage format (report by
	  Florian Weimer).

20200718
	+ reduce redefinition-warnings for KEY_EVENT when building with Visual
	  Studio C++.
	+ define NCURSES_STATIC when compiling programs to link with static
	  libraries, to work with MinGW vs Visual Studio C++.
	> additional changes for building with Visual Studio C++ and msys2
	  (reports/patches by "Maarten Anonymous")
	+ modify c++/Makefile.in to set the current directory while compiling
	  the main program, so the linker can find related objects.
	+ several changes to allow the c++/demo program to compile/link.
	+ change an ifdef in test-directory, to use VC++ wide-character funcs.

20200711
	+ fix pound-sign mapping in acsc of linux2.6 entry (report by Ingo
	  Bruckl).
	+ additional changes for building with Visual Studio C++ and msys2
	  (reports/patches by "Maarten Anonymous")
	+ build-improvements for Windows 10 and MinGW (patch by Juergen
	  Pfeifer).
	+ fix a typo in curs_printw.3x (patch by William Pursell).
	+ fix two errors in infotocap which allowed indexing outside the
	  buffer (report/testcases by Zhang Gan).
	+ update length of strings in infocmp's usage function to restore a
	  trailing null on the longest string (report/testcase by Zhang Gen).

20200704
	+ modify version-check with Ada generics to use the same pattern as in
	  the check for supported gnat versions (report by Pascal Pignard).
	> additional changes for building with Visual Studio C++ and msys2
	  (patches by "Maarten Anonymous"):
	+ adjust headers/declarations to provide for "dllimport" vs "dllexport"
	  declarations when constructing DLLs, to worko with Visual Studio C++.

20200627
	+ build-fixes for gnat 10.1.1, whose gnatmake drops integration with
	  gprbuild.
	+ correct buffer-length in test/color_name.h

20200613
	+ update list of functions in ncurses.3x
	+ move dlclose() call from lib_mouse.c to delscreen() to avoid a case
	  in the former which could be called from SIGTSTP handler (Debian
	  #961097).

20200606
	+ add xterm+256color2, xterm+88color2, to deprecate nonstandard usage
	  in xterm+256color, xterm+88color -TD
	+ add shifted Linux console keys in linux+sfkeys entry for
	  screen.linux (report by Alexandre Montaron).
	+ use vt100+enq in screen (report by Alexandre Montaron).
	+ add screen.linux-s alias (suggested by Alexandre Montaron).

20200531
	+ correct configure version-check/warnng for g++ to allow for 10.x
	+ re-enable "bel" in konsole-base (report by Nia Huang)
	+ add linux-s entry (patch by Alexandre Montaron).
	+ drop long-obsolete convert_configure.pl
	+ add test/test_parm.c, for checking tparm changes.
	+ improve parameter-checking for tparm, adding function _nc_tiparm() to
	  handle the most-used case, which accepts only numeric parameters
	  (report/testcase by "puppet-meteor").
	+ use a more conservative estimate of the buffer-size in lib_tparm.c's
	  save_text() and save_number(), in case the sprintf() function
	  passes-through unexpected characters from a format specifier
	  (report/testcase by "puppet-meteor").
	+ add a check for end-of-string in cvtchar to handle a malformed
	  string in infotocap (report/testcase by "puppet-meteor").

20200523
	+ update version-check for gnat to allow for gnat 10.x to 99.x
	+ fix an uninitialized variable in lib_mouse.c changes (cf: 20200502)
	+ add a check in EmitRange to guard against repeat_char emitting digits
	  which could be interpreted as BSD-style padding when --enable-bsdpad
	  is configured (report/patch by Hiltjo Posthuma).
	+ add --disable-pkg-ldflags to suppress EXTRA_LDFLAGS from the
	  generated pkg-config and ncurses*-config files, to simplify
	  configuring in the case where rpath is used but the packager wants
	  to hide the feature (report by Michael Stapelberg).
	> fixes for building with Visual Studio C++ and msys2 (patches by
	  "Maarten Anonymous"):
	+ modify CF_SHARED_OPTS to generate a script which translates linker
	  options into Visual Studio's dialect.
	+ omit parentheses around function-names in generated lib_gen.c to
	  work around a Visual Studio C++ limitation.

20200516
	+ add notes on termcap.h header in curs_termcap.3x
	+ update notes on vscode / xterm.js -TD

20200509
	+ add "-r" option to the dots test-programs, to help with scripting
	  a performance comparison.
	+ build-fix test/move_field.c for NetBSD curses, whose form headers
	  use different names than SVr4 or ncurses.

20200502
	+ add details on the change to Linux SGR 21 in 2018 -TD
	+ add xterm-direct16 and xterm-direct256 -TD
	+ modify lib_mouse.c to check for out-of-range button numbers, convert
	  those to position reports.

20200425
	+ use vt100+fnkeys in putty -TD
	+ fix a typo in tput.1; "columns" should be "cols".

20200418
	+ improve tracemunch logic for "RUN" compaction.
	+ fix a special case in wresize() where copying the old text did not
	  check if the last cell on a row was the beginning of a fullwidth
	  character (adapted from patch by Benno Schulenberg).
	+ use vt52+keypad in xterm-vt52, from xterm #354 -TD
	+ improve see-also section of user_caps.5

20200411
	+ fix find_pair(), overlooked when refactoring for _nc_reserve_pairs()
	  (report/testcase by Brad Town, cf: 20170812).
	+ add a trailing null for magic-string in putwin, flagged by gcc 10
	+ update check for gcc version versus gnat to work with gcc 10.x

20200404
	+ modify -fvisibility check to work with g++
	> fixes for building with Visual Studio C++ and msys2 (patches by
	  "Maarten Anonymous"):
	+ add configure option and check for gcc -fvisibility=hidden feature
	+ define NCURSES_NOMACROS in lib_gen.c to work around Visual Studio
	  C++ preprocessor limitations.
	+ modify some of the configure-macros, as well as mk-1st.awk to work
	  with Visual Studio C++ default filenaming.

20200328
	+ correct length of buffer copied in dup_field().
	+ remove "$(srcdir)/" from path of library.gpr, needed for out-of-tree
	  builds of Ada95 (patch by Adam Van Ymeren).

20200321
	+ improve configure-checks to reduce warnings about unused variables.
	+ improve description of error-returns in waddch and waddnstr manual
	  pages (prompted by patch by Benno Schulenberg).
	+ add test/move_field.c to demonstrate move_field(), and a stub for
	  a corresponding demo of dup_field().

20200314
	+ add history note to curs_scanw.3x for <stdarg.h> and <varargs.h>
	+ add history note to curs_printw.3x for <stdarg.h> and <varargs.h>
	+ add portability note to ncurses.3x regarding <stdarg.h>

20200308
	+ update copyright notices in test-packages.
	+ modify tracemunch to guard against errors in its known_p1 table.
	+ add several --with-xxx-libname options, to help with pkgsrc (prompted
	  by discussion with Thomas Klausner).

20200301
	+ modify wbkgd() and wbkgrnd() to avoid storing a null in the
	  background character, because it may be used in cases where the
	  corresponding 0x80 is not treated as a null (report by Marc Rechte,
	  cf: 20181208).

20200229
	+ modify CF_NCURSES_CONFIG to work around xcode's c99 "-W" option,
	  which conflicts with conventional use for passing linker options.
	> fixes for building with Visual Studio C++ and msys2 (patches by
	  "Maarten Anonymous"):
	+ check for pcre2posix.h instead of pcre2-posix.h
	+ add case in CF_SHARED_OPTS for msys2 + msvc
	+ add fallback definition for STDIN_FILENO in progs.priv.h
	+ modify win_driver.c to use _alloca() rather than gcc's variable
	  length array feature.
	+ add NCURSES_IMPEXP to ncurses wrapped-variable declarations
	+ remove NCURSES_IMPEXP from class variables in c++/cursslk.h
	+ remove fallback prototype for exit() from c++/etip.h.in
	+ use configured check for <sys/time.h> in a couple of places
	+ conditionally include winsock.h in ncurses/win32con/gettimeofday.c,
	  because Visual Studio needs this for the timestruct declaration.
	+ adjust syntax in a couple of files using the NCURSES_API symbol.

20200222
	+ expanded note in ncurses.3x regarding automatically-included headers
	+ improve vt50h and vt52 based on DECScope manual -TD
	+ add/use vt52+keypad and vt52-basic -TD
	+ check/workaround for line-too-long in Ada95 generate utility when
	  building out-of-tree.
	+ improve/update HEADER_DEPS in */Makefile.in
	+ add "check" rule to include/Makefile, to demonstrate that the headers
	  include all of the required headers for the types used.

20200215
	+ improve manual page for panel library, extending the portability
	  section as well as documenting error-returns.
	+ show tic's version when installing terminal database in run_tic.sh
	+ correct check for gcc vs other compilers used in ncurses 6.0, from
	  FreeBSD patch by Kyle Evans (cf: 20150725).
	+ add notes for 6.2 to INSTALL.

20200212 6.2 release for upload to ftp.gnu.org
	+ update release notes
	+ minor build-fixes, mostly to test-package scripts

20200208
	+ modify check for sizeof(wchar_t) to ensure it gives useful result
	  when cross-compiling.
	+ drop assumption in configure script that Cygwin's linker is broken.
	+ define NCURSES_BROKEN_LINKER if the broken-linker feature is used,
	  to simplify configure-checks for ncurses-examples.

20200202
	+ reassert copyright on ncurses, per discussion in ncurses FAQ:
	  https://invisible-island.net/ncurses/ncurses.faq.html#relicensed

20200201
	+ modify comparison in make_hash.c to correct a special case in
	  collision handling for Caps-hpux11
	+ add testing utility report_hashing to check hash-tables used for
	  terminfo and termcap names.
	+ fix a missing prototype for _nc_free_and_exit().
	+ update a few comments about tack 1.07
	+ use an awk script to split too-long pathnames used in Ada95 sample
	  programs for explain.txt

20200118
	+ expanded description of XM in user_caps.5
	+ improve xm example for xterm+x11mouse, xterm+sm+1006 -TD
	+ add history section to curs_slk.3x and curs_terminfo.3x manpages.
	+ update alacritty entries for 0.4.0 (prompted by patch by
	  Christian Durr) -TD
	+ correct spelling errors found with codespell.
	+ fix for test/configure, from xterm #352.

20200111
	+ improve configure macros which check for the X11/Intrinsic.h header,
	  to accommodate recent MacOS changes.
	+ suppress gcc's -Winline warning; it has not been useful for some time
	+ update config.guess, config.sub

20200104
	+ modify a couple of macros in aclocal.m4 to allow autoconf 2.69 to
	  "work", to help illustrate discussion in
	  https://invisible-island.net/autoconf/my-autoconf.html
	+ fix some warnings from autoheader-252

20191228
	+ in gen-pkgconfig.in, move the RPATH_LIST and PRIVATE_LIBS assignments
	  past the various prefix/libdir assignments, to allow for using those
	  symbols, e.g., as done via CF_SHARED_OPTS.
	+ improve ncurses*-config and pc-files by filtering out linker-specs.
	+ modify test-package to more closely match Fedora's configuration
	  for PIE/PIC feature and debug-packages.

20191221
	+ correct pathname used in Ada95 sample programs for explain.txt, to
	  work with test-packages.
	+ improve tracemunch:
	  + keep track of TERMINAL* values
	  + if tracing was first turned on after initialization, attempt to
	    show distinct screen, window and terminal names anyway.
	+ ensure that GCC_NORETURN is defined in term.h, because the prototype
	  for exit_terminfo() uses it (report by Werner Fink).

20191214
	+ add exit_curses() and exit_terminfo() to replace internal symbols for
	  leak-checking.

20191207
	+ fix a few warnings for test-package builds
	+ add curses_trace(), to replace trace().

20191130
	+ add portability section to curs_getcchar manpage (prompted by
	  discussion with Nick Black).
	+ improve portability discussion of ACS characters in curs_addch
	  manpage.
	+ improve typography for double-quotes in manpages.

20191123
	+ fix typo for MinGW rpm test-package.
	+ workaround in rpm specs for NFS problems in Fedora 31.

20191116
	+ modify ncurses/Makefile.in to fix a case where Debian/testing changes
	  to the ld --as-needed configuration broke ncurses-examples test
	  packages.
	+ drop library-dependency on psapi for MinGW port, since win_driver.c
	  defines PSAPI_VERSION to 2, making it use GetProcessImageFileName
	  from kernel32.dll (prompted by patch by Simon Sobish, cf: 20140503).

20191109
	+ add warning-check in tic for terminals with parm_dch vs parm_ich.
	+ drop ich1 from rxvt-basic, Eterm and mlterm to improve compatibility
	  with old non-curses programs -TD
	+ reviewed st 0.8.2, updated some details -TD
	+ use ansi+rep several places -TD
	+ corrected tic's check for ich1 (report by Sebastian J. Bronner,
	  cf: 20020901).

20191102
	+ check parameter of set_escdelay, return ERR if negative.
	+ check parameter of set_tabsize, return ERR if not greater than zero
	  (report/patch by Anthony Sottile).
	+ revise CF_ADD_LIBS macro to prepend rather than append libraries.
	+ add "xterm-mono" to help packagers (report by Sven Joachim) -TD

20191026
	+ add a note in man/curs_add_wch.3x about Unicode terminology for the
	  line-drawing characters (report by Nick Black).
	+ improve comment in lib_tgoto.c regarding the use of \200 where a
	  \0 would be intended by the caller (report by "64 bit", cf: 20000923).
	+ modify linux-16color to accommodate Linux console driver change in
	  early 2018 (report by Dino Petrucci).

20191019
	+ modify make_hash to not require --disable-leaks, to simplify building
	  with address-sanitizer.
	+ modify tic to exit if it cannot remove a conflicting name, because
	  treating that as a partial success can cause an infinite loop in
	  use-resolution (report/testcase by Hongxu Chen, cf: 20111001).

20191015
	+ improve buffer-checks in captoinfo.c, for some cases when the
	  input string is shorter than expected.
	> fix two errata in tic (report/testcases by Hongxu Chen):
	+ check for missing character after backslash in write_it
	+ check for missing characters after "%>" when converting from termcap
	  syntax (cf: 980530).

20191012
	+ amend recent changes to ncurses*-config and pc-files to filter out
	  Debian linker-flags (report by Sven Joachim, cf: 20150516).
	+ clarify relationship between tic, infocmp and captoinfo in manpage.
	+ check for invalid hashcode in _nc_find_type_entry and
	  _nc_find_name_entry.
	> fix several errata in tic (reports/testcases by "zjuchenyuan"):
	+ check for invalid hashcode in _nc_find_entry.
	+ check for missing character after backslash in fmt_entry
	+ check for acsc with odd length in dump_entry in check for one-one
	  mapping (cf: 20060415);
	+ check length when converting from old AIX box_chars_1 capability,
	  overlooked in changes to eliminate strcpy (cf: 20001007).

20191005
	+ modify the ncurse*-config and pc-files to more closely match for the
	  -I and -l options.

20190928
	+ amend the ncurses*-config and pc-files to take into account the rpath
	  hack which differed between those files.
	+ improve -L option filtering in ncurses*-config
	+ improve recovery from error when reading command-character in
	  test/ncurses.c, showing the relevant error message and not exiting on
	  EINTR (cf: 20180922)

20190921
	+ add a note in resizeterm manpage about top-level windows which touch
	  the screen's borders.
	+ modify configure-checks for gnat to identify each of the tools path
	  and version.

20190914
	+ build-fixes for Ada95 configure-script and corresponding test package

20190907
	+ add --with-ada-libname option and modify Ada95 configuration to
	  allow renaming the "AdaCurses" library (prompted by proposed changes
	  by Pascal Pignard).
	+ modify configure script to distinguish gcc from icc and clang when
	  the --enable-warnings option is not used, to avoid unnecessary
	  warnings about unrecognized inline options (report by Sven Joachim).

20190831
	+ build-fixes for configuration using --program-suffix with Ada95,
	  noticed with MacOS but applicable to other platforms without
	  libpanelw, etc.

20190824
	+ fix some cppcheck warnings, mostly style, in ncurses test-programs.

20190817
	+ amend 20181208 changes for wbkgd() and wbkgrnd(), fixing a few
	  details where it still differed from SVr4.
	+ fix some cppcheck warnings, mostly style, in ncurses test-programs.

20190810
	+ fix a few more coverity warnings.

20190803
	+ improve loop limits in _nc_scroll_window() to handle a case where
	  the scrolled data is a pad which is taller than the window (patch
	  by Rob King).
	+ amend the change to screen, because tmux relies upon that entry
	  and does not support that feature (Debian #933572) -TD
	+ updated ms-terminal entry & notes -TD
	+ updated kitty entry & notes -TD
	+ updated alacritty+common entry & notes -TD
	+ use xterm+sl-twm for consistency -TD

20190728
	+ fix a few more coverity warnings.
	+ more documentation updates based on tctest.

20190727
	+ fix a few coverity warnings.
	+ documentation updates based on tctest.

20190720
	+ fix a few warnings for gcc 4.x
	+ add some portability/historical details to the tic, toe and infocmp
	  manual pages.
	+ correct fix for broken link from terminfo(5) to tabs(1) manpage
	  (report by Sven Joachim).

20190713
	+ change reset's behavior for margins to simply clear soft-margins if
	  possible, rather than clearing and then setting them according to the
	  terminal's width (suggested by Thomas Wolff).
	+ correct order of one wbkgd versus start_color call in test/padview.c

20190706
	+ add domterm -TD
	+ improve comments for recent changes, add alias xterm.js -TD

20190630
	+ add --with-tic-path and --with-infocmp-path to work around problems
	  building fallback source using pre-6.0 tic/infocmp.
	+ add a check in tic for paired indn/rin
	+ correct a buffer-limit in write_entry.c for systems that use caseless
	  filenames.
	+ add ms-terminal -TD
	+ add vscode, vscode-direct -TD

20190623
	+ improve the tabs.1 manual page to distinguish the PWB/Unix and 7th
	  Edition versions of the tabs utility.
	+ add configure check for getenv() to work around implementation shown
	  in Emscripten #6766, use that to optionally suppress START_TRACE
	  macro, whose call to getenv() may not work properly (report by Ilya
	  Ig Petrov).
	+ modify initialization functions to avoid relying upon persistent
	  data for the result from getenv().
	+ update config.guess, config.sub

20190615
	+ expand the portability section of the man/tabs.1 manual page.
	+ regenerate HTML manpages.

20190609
	+ add mintty, mintty-direct (adapted from patch by Thomas Wolff).
	  Some of the suggested user-defined capabilities are commented-out,
	  to allow builds with ncurses 5.9 and 6.0
	+ add Smol/Rmol for tmux, vte-2018 (patch by Nicholas Marriott).
	+ add rs1 to konsole, mlterm -TD
	+ modify _nc_merge_entry() to make a copy of the data which it merges,
	  to avoid modifying the source-data when aligning extended names.

20190601
	+ modify an internal call to vid_puts to pass extended color pairs
	  e.g., from tty_update.c and lib_mvcur.c (report by Niegodziwy Beru).
	+ improve manual page description of init_tabs capability and TABSIZE
	  variable.

20190525
	+ modify reset_cmd.c to allow for tabstops at intervals other than 8
	  (report by Vincent Huisman).

20190518
	+ update xterm-new to xterm patch #345 -TD
	+ add/use xterm+keypad in xterm-new (report by Alain D D Williams) -TD
	+ update terminator entry -TD
	+ remove hard-tabs from ti703 (report by Robert Clausecker)
	+ mention meml/memu/box1 in user_caps manual page.
	+ mention user_caps.5 in tic and infocmp manual pages.

20190511
	+ fix a spurious blank line seen with "infocmp -1fx xterm+x11mouse"
	+ add checks in repair_subwindows() to keep the current position and
	  scroll-margins inside the resized subwindow.
	+ add a limit check in newline_forces_scroll() for the case where the
	  row is inside scroll-margins, but not at the end (report by Toshio
	  Kuratomi, cf: 20170729).
	+ corrected a warning message in tic for extended capabilities versus
	  number of parameters.

20190504
	+ improve workaround for Solaris wcwidth versus line-drawing characters
	  (report by Pavel Stehule).
	+ add special case in tic to validate RGB string-capability extension.
	+ corrected string/parameter-field for RGB in Caps-ncurses.

20190427
	+ corrected problem in terminfo load/realignment which prevented
	  infocmp from comparing extended capabilities with the same name
	  but different types.

20190420
	+ improve ifdef's for TABSIZE variable, to help with AIX/HPUX ports.

20190413
	+ check for TABSIZE variable in test/configure script.
	+ used test/test_arrays.c to improve Caps.aix1 and Caps.hpux11
	+ corrected filtering of comments in MKparametrized.sh
	+ reduce duplication across Caps* files by moving some parts which do
	  not depend on order into Caps-ncurses.

20190406
	+ modify MKcaptab.sh, MKkey_defs.sh, and MKhashsize.sh to handle
	  split-up Caps-files.
	+ build-fixes if extended-functions are disabled.

20190330
	+ add "screen5", to mention italics (report by Stefan Assmann)
	+ modify description of xterm+x11hilite to eliminate unused p5 -TD
	+ add configure script checks to help with a port to Ultrix 3.1
	  (report by Dennis Grevenstein).
	  + check if "b" binary feature of fopen works
	  + check for missing feature of locale.h
	  + add fallback for strstr() in test-programs
	  + add fallback for STDOUT_FILENO in test-programs
	+ update config.guess, config.sub

20190323
	+ move macro for is_linetouched() inside NCURSES_NOMACROS ifndef.
	+ corrected prototypes in several manpages using script to extract
	  those in compilable form.
	+ use _nc_copy_termtype2() rather than direct assignment in setupterm,
	  in case it is called repeatedly using fallback terminfo descriptions
	  (report/patch by Werner Fink).

20190317
	+ regenerate llib-* files.
	+ modify tic to also use new function for user-defined capability info.
	+ modify _nc_parse_entry() to check if a user-defined capability has
	  an unexpected type; ignore it in that case.
	+ fix a special case of link-anchors in generated Ada html files.
	+ use newer rel=author tag in generated html rather than rev=made,
	  which did not become accepted.

20190309
	+ in-progress changes to add parameter-checking for common user-defined
	  capabilities in tic.
	+ update MKcodes.awk and MKnames.awk to ignore the new "userdef"
	  data in Caps-ncurses (cf: 20190302).

20190302
	+ corrected some of the undocumented terminfo names in Caps.hpux11
	+ add "Caps-ncurses" file to help with checking inconsistencies in some
	  user-defined capabilities.
	+ amend check for repeat_char to handle a case where setlocale() was
	  called after initscr() (report by "Ampera").

20190223
	+ fix typo in adds200 -TD
	+ add tic check for consistent alternate character set capabilities.
	+ improve check in mvcur() to decide whether to use hard-tabs, using
	  xt, tbc and hts as clues.
	+ replace check in reset command for obsolete "pt" capability using
	  tbc and hts capabilities as clues (report by Nicolas Marriott).

20190216
	+ improve manual page description of TABSIZE.
	+ add test/demo_tabs program.

20190209
	+ add check in tic to provide warnings for mismatched number of
	  parameters in the documented user-capability extensions.

20190202
	+ modify rpm test-package ".spec" file to work around naming conflict
	  with Redhat's package for ncurses6.
	+ modify no-leaks code in test/picsmap to avoid non-standard tdestroy.
	+ amend change to configure script which altered the top-level makefile
	  to avoid attempting to install the terminfo database when it was not
	  configured, to allow for installing the ".pc" files which are also
	  in the misc directory (report by Steve Wills).

20190126
	+ change some "%define" statements in test-packages for RPMs to
	  "%global" to work around changes in rpm 4.14 from recent Redhat.
	+ fixes for O_INPUT_FIELD extension (patch by Leon Winter).
	+ eliminate fixed buffer-size when reading $TERMCAP variable.
	+ correct logic in read_entry.c which prevented $TERMCAP variable from
	  being interpreted as a fallback to terminfo entry (prompted by
	  Savannah #54556, cf: 20110924).

20190121
	+ add a check in test/configure to work around non-ncurses termcap.h
	  file in Slackware.
	+ corrected flag for "seq" method of db 1.8.5 interface, needed by toe
	  on some of the BSDs.
	+ updated "string-hacks" feature.
	+ minor improvements to manpage typography.
	+ corrected conditionally-compiled limit on color pairs (report by
	  "Hudd").
	+ add -x option to test/pair_content, test/color_content for testing
	  init_extended_pair, extended_pair_content, init_extended_color,
	  extended_color_content
	+ add -p option to test/pair_content, test/color_content to show the
	  return values from the tested functions.
	+ improve manual page curs_color.3x discussion of error returns and
	  extensions.
	+ add O_INPUT_FIELD extension to form library (patch by Leon Winter).
	+ override/suppress --enable-db-install if --disable-database configure
	  option was given.
	+ change a too-large terminal entry in tic from a fatal error to a
	  warning (prompted by discussion with Gabriele Balducci).

20190112
	+ fix typo in term(5), improve explanation of format (report by Otto
	  Modinos).
	+ add nsterm-direct -TD
	+ use SGR 1006 mouse for konsole-base -TD
	+ use SGR 1006 mouse for putty -TD
	+ add ti703/ti707, ti703-w/ti707-w (Robert Clausecker)

20190105
	+ add dummy "check" rule in top-level and test-Makefile to simply
	  building test-packages for Arch.
	+ modify configure script to avoid conflict with a non-POSIX feature
	  that enables all parts of the system headers by default.  Some
	  packagers have come to rely upon this behavior (FreeBSD #234049).
	+ update config.guess, config.sub

20181229
	+ improve man/curs_mouse.3x with regard to xterm
	+ modify tracemunch to accept filename parameters in addition to use
	  as a pipe/filter.
	+ minor optimization to reduce calls to _nc_reserve_pairs (prompted by
	  discussion with Bryan Christ).
	+ add test/pair_content.c and test/color_content.c
	+ modify infocmp to omit filtering of "OTxx" names which are used for
	  obsolete capabilities, when the output is sorted by long-names.
	  Doing this helps when making a table of the short/long capability
	  names.

20181215
	+ several fixes for gcc8 strict compiler warnings.
	+ fix a typo in comments (Aaron Gyes).
	+ add nsterm-build309 to replace nsterm-256color, assigning the latter
	  as an alias of nsterm, to make mouse work with nsterm-256color -TD
	+ base gnome-256color entry on "gnome", not "vte", for consistency -TD
	+ updates for configure macros from work on tin and xterm:
	  + CF_GNU_SOURCE, allow for Cygwin's newlib when checking for the
	    _DEFAULT_SOURCE symbol.
	  + CF_VA_COPY, add fallback check if neither va_copy/__va_copy is
	    supported, to try copying the pointers for va_list, or as an array.
	    Also add another fallback check, for __builtin_va_copy(), which
	    could be used with AIX xlc in c89 mode.

20181208
	+ modify wbkgd() and wbkgrnd() to improve compatibility with SVr4
	  curses, changing the way the window rendition is updated when the
	  background character is modified (report by Valery Ushakov).

20181201
	+ add midnightbsd to CF_XOPEN_SOURCE macro (patch by Urs Jansen).
	+ add "@" command to test/ncurses F-test, to allow rapid jump to
	  different character pages.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20181125
	+ build-fix (reports by Chih-Hsuan Yen, Sven Joachim).

20181124
	+ check --with-fallbacks option to ensure there is a value, and add
	  the fallback information to top-level Makefile summary.
	+ add some traces in initialization to show whether a fallback entry is
	  used.
	+ build-fix for test/movewindow with ncurses-examples on Solaris.
	+ add "-l" option to test/background, to dump screen contents in a form
	  that lets different curses implementations be compared.
	+ modify the initialization checks for mouse so that the xterm+sm+1006
	  block will work with terminal descriptions not mentioning xterm
	  (report by Tomas Janousek).

20181117
	+ ignore the hex/b64 $TERMINFO in toe's listing.
	+ correct a status-check in _nc_read_tic_entry() so that if reading
	  a hex/b64 $TERMINFO, and the $TERM does not match, fall-through to
	  the compiled-in search list.

20181110
	+ several workarounds to ensure proper C compiler used in parts of
	  Ada95 tree.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20181027
	+ add OpenGL clients alacritty and kitty -TD
	+ add Smulx for tmux, vte-2018 -Nicholas Marriott

20181020
	+ ignore $TERMINFO as a default value in configure script if it came
	  from the infocmp -Q option.
	+ allow value for --with-versioned-syms to be a relative pathname
	+ add a couple of broken-linker symbols to the list of versioned
	  symbols to help with link-time optimization versus weak symbols.
	+ apply shift/control/alt logic when decoding xterm's 1006 mode to
	  wheel-mouse events (Redhat #1610681).

20181013
	+ amend change from 20180818, which undid a fix for the $INSTALL value
	  to make it an absolute path.

20181006
	+ improve a configure check to work with newer optimizers (report by
	  Denis Pronin, Gentoo #606142).
	+ fix typo in tput.c (Sven Joachim, cf: 20180825).

20180929
	+ fix typo in tvi955 -TD
	+ corrected acsc for regent60 -TD
	+ add alias n7900 -TD
	+ corrected acsc for tvi950 -TD
	+ remove bogus kf0 from tvi950 -TD
	+ added function-key definitions to agree with Televideo 950 manual -TD
	+ add bel to tvi950 -TD
	+ add shifted function-keys to regent60 -TD
	+ renumber regent40 function-keys to match manual -TD
	+ add cd (clr_eos) to adds200 -TD

20180923
	+ build-fix: remove a _tracef call which was used for debugging (report
	  by Chris Clayton).

20180922
	+ ignore interrupted system-call in test/ncurses's command-line, e.g.,
	  if the terminal were resized.
	+ add shift/control/alt logic for decoding xterm's 1006 mode (Redhat
	  #1610681, cf: 20141011).
	+ modify rpm test-packages to not use --disable-relink with Redhat,
	  since Fedora 28's tools do not work with that feature.

20180908
	+ document --with-pcre2 configure option in INSTALL.
	+ improve workaround for special case in PutAttrChar() where a cell is
	  marked as alternate-character set, to handle a case where the
	  character in the cell does not correspond to any of the ASCII
	  fallbacks (report by Leon Winter, cf: 20180505).
	+ amend change to form library which attempted to avoid unnecessary
	  update of cursor position in non-public fields, to simply disable
	  output in this case (patch by Leon Winter, cf: 20180414).
	+ improve check for LINE_MAX runtime limit, to accommodate broken
	  implementations of sysconf().

20180901
	+ improve manual page for wgetnstr, giving background for the length
	  parameter.
	+ define a limit for wgetnstr, wgetn_wstr when length is negative or
	  "too large".
	+ update configure script to autoconf 2.52.20180819 (Debian #887390).

20180825
	+ add a section to tput manual page clarifying how it determines the
	  terminal size (prompted by discussion with Grant Jenks).
	+ add "--disable-relink" to rpm test-packages, for consistency with the
	  deb test-packages.
	+ split spec-file into ncurses6.spec and ncursest6.spec to work around
	  toolset breakage in Fedora 28.
	+ drop mention of "--disable-touching", which was not in the final
	  20180818 updates.

20180818
	+ build-fix for PDCurses with ncurses-examples.
	+ improved CF_CC_ENV_FLAGS.
	+ modify configure scripts to reduce relinking/ranlib during library
	  install (Debian #903790):
	  + use "install -p" when available, to avoid need for ranlib of
	    static libraries.
	  + modify scripts which use "--disable-relink" to add a 1-second
	    sleep to work around tools which use whole-second timestamps, e.g.,
	    in utime() rather than the actual file system resolution.

20180804
	+ improve logic for clear with E3 extension, in case the terminal
	  scrolls content onto its saved-lines before actually clearing
	  the display, by clearing the saved-lines after clearing the
	  display (report/patch by Nicholas Marriott).

20180728
	+ improve documentation regarding feature-test macros in curses.h
	+ improve documentation regarding the virtual and physical screens.
	+ formatting fixes for manpages, regenerate man-html documentation.

20180721
	+ build-fixes for gcc8.
	+ corrected acsc for wy50 -TD
	+ add wy50 and wy60 shifted function-keys as kF1 to kF16 -TD
	+ remove ansi+rep mis-added to interix in 2018-02-23 -TD

20180714
	+ add enum, regex examples to test/demo_forms
	+ add configure check for pcre-posix library to help with MinGW port.

20180707
	+ build-fixes for gcc8.
	+ correct order of WINDOW._ttytype versus WINDOW._windowlist in
	  report_offsets.
	+ fix a case where tiparm could return null if the format-string was
	  empty (Debian #902630).

20180630
	+ add acsc string to vi200 (Nibby Nebbulous)
	  add right/down-arrow to vi200's acsc -TD
	+ add "x" to tput's getopt string so that "tput -x clear" works
	  (Nicholas Marriott).
	+ minor fixes prompted by anonymous report on stack overflow:
	  + correct order of checks in _nc_get_locale(), for systems lacking
	    locale support.
	  + add "#error" in a few places to flag unsupported configurations

20180623
	+ use _WIN32/_WIN64 in preference to __MINGW32__/__MINGW64__ symbols
	  to simplify building with MSVC, since the former are defined in both
	  compiler configurations (report by Ali Abdulkadir).
	+ further improvements to configure-checks from work on dialog, i.e.,
	  updated CF_ADD_INCDIR, CF_FIND_LINKAGE, CF_GCC_WARNINGS,
	  CF_GNU_SOURCE, CF_LARGEFILE, CF_POSIX_C_SOURCE, CF_SIZECHANGE, and
	  CF_TRY_XOPEN_SOURCE.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20180616
	+ build-fix for ncurses-examples related to gcc8-fixes (cf: 20180526).
	+ reduce use of _GNU_SOURCE for current glibc where _DEFAULT_SOURCE
	  combines with _XOPEN_SOURCE (Debian #900987).
	+ change target configure level for _XOPEN_SOURCE to 600 to address
	  use of vsscanf and setenv.
	+ improved configure-checks CF_SIZECHANGE and CF_STRUCT_TERMIOS from
	  work on dialog.

20180609
	+ modify generated ncurses*config and ncurses.pc, ncursesw.pc, etc.,
	  to list helper libraries such as gpm for static linking (Debian
	  #900839).
	+ marked vwprintw and vwscanw as deprecated; recommend using vw_printw
	  and vw_scanw, respectively.

20180602
	+ add RPM test-package "ncursest-examples".
	+ modified RPM test-package to work with Mageia6.

20180526
	+ add note in curs_util.3x about unctrl.h
	+ review/improve header files to ensure that those include necessary
	  files except for the previously-documented cases (report by Isaac
	  Pascual Monells).
	+ improved test-package scripts, adapted from byacc 1.9 20180525.
	+ fix some gcc8 warnings seen in Redhat package build, but
	  work around bug in gcc8 compiler warnings in comp_parse.c

20180519
	+ formatting fixes for manpages, regenerate man-html documentation.
	+ trim spurious whitespace from tmux in 2018-02-24 changes;
	  fix some inconsistencies in/between tmux- and iterm2-entries for SGR
	  (report by C Anthony Risinger)
	+ improve iterm2 using some xterm features which it has adapted -TD
	+ add check in pair_content() to handle the case where caller asks
	  for an uninitialized pair (Debian #898658).

20180512
	+ remove trailing ';' from GCC_DEPRECATED definition.
	+ repair a change from 20110730 which left an error-check/warning dead.
	+ fix several minor Coverity warnings.

20180505
	+ add deprecation warnings for internal functions called by older
	  versions of tack.
	+ fix a special case in PutAttrChar() where a cell is marked as
	  alternate-character set, but the terminal does not actually support
	  the given graphic character.  This would happen in an older terminal
	  such as vt52, which lacks most line-drawing capability.
	+ use configure --with-config-suffix option to work around filename
	  conflict with Debian packages versus test-packages.
	+ update tracemunch to work with perl 5.26.2, which changed the rules
	  for escaping regular expressions.

20180428
	+ document new form-extension O_EDGE_INSERT_STAY (report by Leon
	  Winter).
	+ correct error-returns listed in manual pages for a few form functions
	  (report by Leon Winter).
	+ add a check in form-library for null-pointer dereference:
		unfocus_current_field (form);
		form_driver (form, REQ_VALIDATION);
	  (patch by Leon Winter).

20180414
	+ modify form library to optionally delay cursor movement on a field
	  edge/boundary (patch by Leon Winter).
	+ modify form library to avoid unnecessary update of cursor position in
	  non-public fields (patch by Leon Winter).
	+ remove unused _nc_import_termtype2() function.
	+ also add/improve null-pointer checks in other places
	+ add a null-pointer check in _nc_parse_entry to handle an error when
	  a use-name is invalid syntax (report by Chung-Yi Lin).

20180407
	+ clarify in manual pages that vwprintw and vwscanw are obsolete,
	  not part of X/Open Curses since 2007.
	+ use "const" in some prototypes rather than NCURSES_CONST where X/Open
	  Curses was updated to do this, e.g., wscanw, newterm, the terminfo
	  interface.  Also use "const" for consistency in the termcap
	  interface, which was withdrawn by X/Open Curses in Issue 5 (2007).
	  As of Issue 7, X/Open Curses still lacks "const" for certain return
	  values, e.g., keyname().

20180331
	+ improve terminfo write/read by modifying the fourth item of the
	  extended header to denote the number of valid strings in the extended
	  string table (prompted by a comment in unibilium's sources).

20180324
	+ amend Scaled256() macro in test/picsmap.c to cover the full range
	  0..1000 (report by Roger Pau Monne).
	+ add some checks in tracemunch for undefined variables.
	+ trim some redundant capabilities from st-0.7 -TD
	+ trim unnecessary setf/setb from interix -TD

20180317
	+ fix a check in infotocap which may not have detected a problem when
	  it should have.
	+ add a check in tic for the case where setf/setb are given using
	  different strings, but provide identical results to setaf/setab.
	+ further improve fix for terminfo.5 (patch by Kir Kolyshkin).
	+ reorder loop-limit checks in winsnstr() in case the string has no
	  terminating null and only the number of characters is used (patch
	  by Gyorgy Jeney).

20180303
	+ modify TurnOn/TurnOff macros in lib_vidattr.c and lib_vid_attr.c to
	  avoid expansion of "CUR" in trace.
	+ improve a few lintian warnings in test-packages.
	+ modify lib_setup to avoid calling pthread_self() without first
	  verifying that the address is valid, i.e., for weak symbols
	  (report/patch by Werner Fink).
	+ modify generated terminfo.5 to not use "expand" and related width
	  on the last column of tables, making layout on wide terminals look
	  better (adapted from patch by Kir Kolyshkin).
	+ add a category to report_offsets, e.g., "w" for wide-character, "t"
	  for threads to make the report more readable.  Reorganized the
	  structures reported to make the categories more apparent.
	+ simplify some ifdef's for extended-colors.
	+ add NCURSES_GLOBALS and NCURSES_PRESCREEN to report_offsets, to show
	  how similar the different tinfo configurations are.

20180224
	+ modify _nc_resolve_uses2() to detect incompatible types when merging
	  a "use=" clause of extended capabilities.  The problem was seen in a
	  defective terminfo integrated from simpleterm sources in 20171111,
	  compounded by repair in 20180121.
	+ correct Ss/Ms interchange in st-0.7 entry (tmux #1264) -TD
	+ fix remaining flash capabilities with trailing mandatory delays -TD
	+ correct cut/paste in NEWS (report by Sven Joachim).

20180217
	+ remove incorrect free() from 20170617 changes (report by David Macek).
	+ correct type for "U8" in user_caps.5; it is a number not boolean.
	+ add a null-pointer check in safe_sprintf.c (report by Steven Noonan).
	+ improve fix for Debian #882620 by reusing limit2 variable (report by
	  Julien Cristau, Sven Joachim).

20180210
	+ modify misc/Makefile.in to install/uninstall explicit list in case
	  the build-directory happens to have no ".pc" files when an uninstall
	  is performed (report by Jeffrey Walton).
	+ deprecate safe-sprintf, since the vsnprintf function, which does what
	  was needed, was standardized long ago.
	+ add several development/experimental options to development packages.
	+ minor reordering of options in configure script to make the threaded
	  and reentrant options distinct from the other extensions which are
	  normally enabled.

20180203
	+ minor fixes to test/*.h to make them idempotent.
	+ add/use test/parse_rgb.h to show how the "RGB" capability works.
	+ add a clarification in user_caps.5 regarding "RGB" capability.
	+ add extended_slk_color{,_sp} symbols to the appropriate
	  package/*.{map,sym} files (report by Sven Joachim, cf: 20170401).

20180129
	+ update "VERSION" file, used in shared-library naming.

20180127 6.1 release for upload to ftp.gnu.org

20180127
	+ updated release notes
	+ amend a warning message from tic which should have flagged misuse
	  of "XT" capability in "screen" terminal description.
	> terminfo changes:
	+ trim "XT" from screen entry, add comments to explain why it was
	  not suitable -TD
	+ modify iterm to use xterm+sl-twm building block -TD
	+ mark konsole-420pc, konsole-vt100, konsole-xf3x obsolete reflecting
	  konsole's removal in 2008 -TD
	+ expanded the history section of konsole to explain its flawed
	  imitation of xterm's keyboard -TD
	+ use xterm+x11mouse in screen.* entries because screen does not yet
	  support xterm's 1006 mode -TD
	+ add nsterm-build400 for macOS 10.13 -TD
	+ add ansi+idc1, use that in ansi+idc adding dch for consistency -TD
	+ update vte to vte-2017 -TD
	+ add ecma+strikeout to vte-2017 -TD
	+ add iterm2-direct -TD
	+ updated teraterm, added teraterm-256color -TD
	+ add mlterm-direct -TD
	+ add descriptions for ANSI building-blocks -TD

20180121 pre-release
	> terminfo changes:
	+ add xterm+noalt, xterm+titlestack, xterm+alt1049, xterm+alt+title
	  blocks from xterm #331 -TD
	+ add xterm+direct, xterm+indirect, xterm-direct entries from xterm
	  #331 -TD
	+ modify xterm+256color and xterm+256setaf to use correct number of
	  color pairs, for ncurses 6.1 -TD
	+ add rs1 capability to xterm-256color -TD
	+ modify xterm-r5, xterm-r6 and xterm-xf86-v32 to use xterm+kbs to
	  match xterm #272, reflecting packager's changes -TD
	+ remove "boolean" Se, Ss from st-0.7 -TD
	+ add konsole-direct and st-direct -TD
	+ remove unsupported "Tc" capability from st-0.7; use st-direct if
	  direct-colors are wanted -TD
	+ add vte-direct -TD
	+ add XT, hpa, indn, and vpa to screen, and invis, E3 to tmux (patch by
	  Pierre Carru)
	+ use xterm+sm+1006 in xterm-new, vte-2014 -TD
	+ use xterm+x11mouse in iterm, iterm2, mlterm3 because xterm's 1006
	  mode does not work with those programs.  konsole is debatable -TD
	+ add "termite" entry (report by Markus Pfeiffer) -TD
	> merge branch begun April 2, 2017 which provides these features:
	+ support read/write new binary-format for terminfo which stores
	  numeric capabilities as a signed 32-bit integer.  The test programs
	  such as picsmap, ncurses were created or updated during 2017 to use
	  this feature.
	+ the new format is written by the wide-character configuration of
	  tic when it finds a numeric capability larger than 32767.
	+ other applications such as infocmp built with the wide-character
	  ncurses library work as expected.
	+ applications built with the "narrow" (8-bit) configuration will
	  read the new format, but will limit those extended values to 32767.
	+ in either wide/narrow configuration, the structure defined in
	  term.h still uses signed 16-bit values.
	+ because it is incompatible with the legacy (mid-1980s) binary format,
	  a new magic value is provided for the "file" program.
	+ the term.5 manual page is updated to describe this new format.
	+ the limit on file-size for compiled terminfo is increased in the
	  wide-character configuration to 32768.

20180120
	+ build-fix in picsmap.c for stdint.h existence.
	+ add --disable-stripping option to configure scripts.
	+ modify ncurses-examples to install test-scripts in the data directory.
	+ work around 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.
	+ bump the compat level for test-packages to 7, i.e., Debian 5.

20180106
	+ fixes for writing extended color pairs in putwin.
	+ modify test/savescreen.c to add test patterns that exercise 88-,
	  256-, etc., colors.
	+ modify configure option --with-build-cc, adding clang, c89 and c99
	  as possible default values.
	+ 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.
	+ modify test-packages for mingw to supply "pc" files.
	+ modify gen-pkgconfig.in to list -lpthread as a private library when
	  configured to access it via weak symbols.
	+ simplify gen-pkgconfig.in, adding -ltinfo without the special linker
	  checks because some versions of the linker simply hard-code the
	  behavior.
	+ update URLs for ncurses website to use https.
	+ modify CF_CURSES_LIBS to fill in $cf_nculib_root in case the
	  ncurses-examples are built with a system ncurses that lacks the
	  standard "curses" symbolic link, as done by SuSE.  The symbol is
	  needed to make a followup check for the pthread library work, and
	  would be set properly using the options "--with-screen", etc.
	+ generate misc/*.pc with "all" rule, as done for "sources" rule
	  (report by Jeffrey Walton).

20171230
	+ build-fix for ncurses-examples with Fedora27, adding check for
	  reset_color_pairs() -- not yet in Fedora's package.
	+ consistently add $CFLAGS to $MK_SHARED_LIB symbol in configure
	  script when the latter happens to use the C compiler rather than
	  directly using the loader (report by Jeffrey Walton).
	+ set ABI for upcoming 6.1 release in "*.map" files.  While there are
	  some remaining internals to apply, no ABI-related changes are
	  anticipated.
	+ add configure --with-config-suffix option to work around filename
	  conflict with Redhat packages versus test-packages.

20171223
	+ modify ncurses-examples to quiet const-warnings when building with
	  PDCurses.
	+ modify toe to not exit if unable to read a terminal description,
	  e.g., if there is a permission problem.
	+ minor fix for progs/toe.c, using _nc_free_termtype2.
	+ assign 0 to pointer in _nc_tgetent_leak() after freeing it. Also
	  avoid reusing pointer from previous successful call to tgetent
	  if the latest call is unsuccessful (patch by Michael Schroeder,
	  OpenSuSE #1070450).
	+ minor fix for test/tracemunch, initialize $awaiting variable.

20171216
	+ repair template in test/package/ncurses-examples.spec (cf: 20171111).
	+ improve tic's warning about the number of parameters tparm might use
	  for u1-u9 by making a special case for u6.
	+ improve curs_attr.3x discussion of color pairs.

20171209
	+ modify misc/ncurses-config.in to make output with --includedir
	  consistent with --cflags, i.e., when --disable-overwrite option was
	  configured the output should show the subdirectory where headers
	  are.
	+ modify MKlib_gen.sh to suppress macros when calling an "implemented"
	  function in link_test.c
	+ updated ftp-url used in test-packages, etc.
	+ modify order of -pie/-shared options in configure script in case
	  LDFLAGS uses "-pie", working around a defect or limitation in the GNU
	  linker (prompted by patch by Yogesh Prasad, forwarded by Jay Shah).
	+ add entry in man_db.renames for user_caps.5

20171125
	+ modify MKlib_gen.sh to avoid tracing result from getstr/getnstr
	  before initialized.
	+ add "-a" aspect-ratio option to picsmap.
	+ add configure check for default path of rgb.txt, used in picsmap.
	+ modify _nc_write_entry() to truncate too-long filename (report by
	  Hosein Askari, Debian #882620).
	+ build-fix for ncurses-examples with NetBSD curses:
	  + it lacks the use_env() function.
	  + it lacks libpanel; a recent change used the wrong ifdef symbol.
	+ 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 (report by Midolikawa H).
	+ additional manpage cleanup.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20171118
	+ add a note to curs_addch.3x on portability.
	+ add a note to curs_pad.3x on the origin and portability of pads.
	+ improve manpage description of getattrs (report by Midolikawa H).
	+ improve manpage macros (prompted by discussion in Debian #880551.
	+ reviewed test-programs using KEY_RESIZE, made fixes to test/worm.c
	+ add a "-d" option to picsmap for default-colors.
	+ modify old terminology entry and a few other terminal emulators to
	  account for xon -TD
	+ correct sgr string for tmux, which used screen's "standout" code
	  rather than the standard code (patch by Roman Kagan)
	+ correct sgr/sgr0 strings in a few other cases reported by tic, making
	  those correspond to the non-sgr settings where they differ, but
	  otherwise use ECMA-48 consistently:
	  jaixterm, aixterm, att5420_2, att4424, att500, decansi, d410-7b,
	  dm80, hpterm, emu-220, hp2, iTerm2.app, mterm-ansi, ncrvt100an,
	  st-0.7, vi603, vwmterm -TD
	+ build-fix for diagnostics warning in lib_mouse.c for pre-5.0 versions
	  of gcc which did not recognize the diagnostic "push" pragma (patch by
	  Vassili Courzakis).

20171111
	+ add "op" to xterm+256setaf -TD
	+ reviewed terminology 1.0.0 -TD
	+ reviewed st 0.7 -TD
	+ suppress debug-package for ncurses-examples rpm build.

20171104
	+ check for interrupt in color-pair initialization of dots_curses.c,
	  dots_xcurses.c
	+ add z/Z zoom feature to test/ncurses.c C/c screens.
	+ add '<' and '>' commands to test/ncurses.c S/s screens, to better
	  test off-by-ones in the overlap/copywin functions.

20171028
	+ improve man/curs_inwstr.3x, correct end-logic for lib_inwstr.c
	  (report by Midolikawa H).
	+ fix typo in a few places for "improvements" (patch by Sven Joachim).
	+ clear the other half of a double-width character on which a line
	  drawing character is drawn.
	+ make test/ncurses.c "s" test easier to understand which subtests are
	  available; add a "S" wide-character overlap test-screen.
	+ modify test/ncurses.c C/c tests to allow for extended color pairs.
	+ add endwin() call in error-returns from test/ncurses.c omitted in
	  recent redesign of its menu (cf: 20170923).
	+ improve install of hashed-db by removing the ".db" file as done for
	  directory-tree terminal databases.
	+ repair a few overlooked items in include/ncurses_defs from recent
	  port/refactoring of test-programs (cf: 20170909).
	+ add test/padview.c, to compare pads with direct updates in view.c

20171021
	+ modify test/view.c to expand tabs using the ncurses library rather
	  than in the test-program.
	+ remove very old SIGWINCH example in test/view.c, just use KEY_RESIZE.
	+ add -T, -e, -f -m options to "dots" test-programs.
	+ fix a few typos in usage-messages for test-programs.

20171014
	+ minor cleanup to test/view.c:
	  + eliminate "-n" option by simply reading the whole file.
	  + implement page up/down commands.
	+ add check in tput for init/reset operands to ensure those use a
	  terminal.
	+ improve manual pages which discuss chtype, cchar_t types and the
	  attribute values which can be stored in those types.
	+ correct array-index when parsing "-T" command-line option in tabs
	  program.
	+ modify demo_new_pair.c to pass extended pairs to setcchar().
	+ add test/dots_xcurses.c to illustrate a different approach used for
	  extended colors which can be contrasted with dots_curses.c.
	+ add a check in tic to note when a description uses non-mandatory
	  delays without xon_xoff.  This is not an error, but some descriptions
	  for a terminal emulator may use the combination incorrectly.

20171007
	+ modify "-T" option of clear and tput to call use_tioctl() to obtain
	  the operating system's notion of the screensize if possible.
	+ review/repair some exit-codes for tput, making usage-message exit
	  with 2 rather than 1, and a failure to open terminal 4+errno.
	+ 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 (report by Lauri Tirkkonen).
	+ correct an ifdef in test/ncurses.c for systems with soft-keys but
	  not slk_color().
	+ regenerate man-html documentation.

20170930
	+ fix a symbol conflict that made ncurses.c C/c menu not work with
	  Solaris xpg4 curses.
	+ add refresh() call to dots_mvcur.c, needed to use mvcur() with
	  Solaris xpg4 curses after calling newterm().
	+ minor fixes for configure script from work on ncurses-examples and
	  tin.
	+ improve animation in test/xmas.c by adding a time-delay in blinkit().
	+ modify several test programs to reflect that ncurses honors existing
	  signal handlers in initscr(), while other implementations do not.
	+ modify bs.c to make it easier to quit.
	+ 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.

20170923
	+ modify menu for test/ncurses.c to fit on 24-line screen.
	+ build-fix for configure --with-caps=uwin
	+ add options to test_arrays.c, for selecting termcap vs terminfo, etc.

20170916
	+ minor fix to test/filter.c to avoid clearing the command in one case.
	+ modify filter() to discard clr_eos if back_color_erase is set.

20170909
	+ improve wide-character implementation of myADDNSTR() in frm_driver.c,
	  which was inconsistent with the normal implementation.
	+ save/restore cursor position in Undo_Justification(), matching
	  behavior of Buffer_To_Window() (report by Leon Winter).
	+ modify test/knight to provide the "slow" solution for small screens
	  using "R", noting that Warnsdorf's method is easily done with "a".
	+ modify several test-programs which call use_default_colors() to
	  consistently do this only if "-d" option is given.
	+ additional changes to test with non-standard variants of curses:
	  + modify a loop limit in firework.c to work around absence 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.
	+ add checks in test/configure for some functions not in 4.3BSD curses.
	+ fix a regression in test/configure (cf: 20170826).

20170902
	+ amend change for endwin-state for better consistency with the older
	  logic (report/patch by Jeb Rosen, cf: 20170722).
	+ modify check in fmt_entry() to handle a cancelled reset string
	  (Debian #873746).  Make similar fixes in other parts of dump_entry.c
	  and tput.c

20170827
	+ fix a bug in repeat_char logic (cf: 20170729, report by Chris Clayton).

20170826
	+ fixes for "iterm2" (report by Leonardo Brondani Schenkel) -TD
	+ corrected a warning from tic about keys which are the same, to skip
	  over missing/cancelled values.
	+ add check in tic for unnecessary use of "2" to denote a shifted
	  special key.
	+ improve checks in trim_sgr0, comp_parse.c and parse_entry.c, for
	  cancelled string capabilities.
	+ add check in _nc_parse_entry() for invalid entry name, setting the
	  name to "invalid" to avoid problems storing entries.
	+ add/improve checks in tic's parser to address invalid input
	  + add a check in comp_scan.c to handle the special case where a
	    nontext file ending with a NUL rather than newline is given to tic
	    as input (Redhat #1484274).
	  + allow for cancelled capabilities in _nc_save_str (Redhat #1484276).
	  + add validity checks for "use=" target in _nc_parse_entry (Redhat
	    #1484284).
	  + check for invalid strings in postprocess_termcap (Redhat #1484285)
	  + reset secondary pointers on EOF in next_char() (Redhat #1484287).
	  + guard _nc_safe_strcpy() and _nc_safe_strcat() against calls using
	    cancelled strings (Redhat #1484291).
	+ correct typo in curs_memleaks.3x (Sven Joachim).
	+ improve test/configure checks for some curses variants not based on
	  X/Open Curses.
	+ add options for test/configure to disable checks for form, menu and
	  panel libraries.

20170819
	+ update "iterm" entry -TD
	+ add "iterm2" entry (report by Leonardo Brondani Schenkel) -TD
	+ regenerate llib-* files.
	+ regenerate HTML manpages.
	+ improve picsmap test-program:
	  + reduce memory used for tsearch
	  + add report in log file showing cumulative color coverage.
	+ add -x option to clear/tput to make the E3 extension optional
	  (cf: 20130622).
	+ add options -T and -V to clear command for compatibility with tput.
	+ add usage message to clear command (Debian #371855).
	+ improve usage messages for tset and tput.
	+ minor fixes to "RGB" extension and reset_color_pairs().

20170812
	+ improve description of -R option in infocmp manual page (report by
	  Stephane Chazelas).
	+ add reset_color_pairs() function.
	+ add user_caps.5 manual page to document the terminfo extensions used
	  by ncurses.
	+ improve build scripts, using SIGQUIT vs SIGTRAP; add other configure
	  script fixes from work on xterm, lynx and tack.
	+ modify install-rule for ncurses-examples to put the data files in
	  /usr/share/ncurses-examples
	+ improve tracemunch, by changing address-parameters of add_wch(),
	  color_content() and pair_content() to dummy parameters.
	+ minor optimization to _nc_change_pair, to return quickly when the
	  current screen is marked for clearing.
	+ in-progress changes to improve performance of test/picsmap.c for
	  loading image files.
	+ modify allocation for SCREEN's color-pair table to start small, grow
	  on demand up to the existing limit.
	+ add "RGB" extension capability for direct-color support, use this to
	  improve color_content().
	+ improve picsmap test-program:
	  + if no palette file is needed, attempt to load one based on $TERM,
	    checking first in the current directory, then by adding ".dat"
	    suffix, and finally in the data-directory, e.g.,
	    /usr/share/ncurses-examples
	  + add "-l" option for logging
	  + add "-d" option for debugging
	  + add "-s" option for stepping automatically through list of images,
	    with time delay.
	  + use tsearch to improve time for loading color table for images.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20170729
	+ update interix entry using tack and SFU on Windows 7 Ultimate -TD
	+ use ^? for kdch1 in interix (reported by Jonathan de Boyne Pollard)
	+ add "rep" to xterm-new, available since 1997/01/26 -TD
	+ move SGR 24 and 27 from vte-2014 to vte-2012 (request by Alain
	  Williams) -TD
	+ add a check in newline_forces_scroll() in case a program moves the
	  cursor outside scrolling margins (report by Robert King).
	+ 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.
	+ amend handling of repeat_char capability in EmitRange (adapted from
	  report/patch by Dick Wesseling):
	  + translate the character to the alternate character set when the
	    alternate character set is enabled.
	  + do not use repeat_char for characters past 255.
	+ document "_nc_free_tinfo" in manual page, because it could be used in
	  tack for memory-leak checking.
	+ add "--without-tack" configure option to refine "--with-progs"
	  configure option.  Normally tack is no longer built in-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 an overlooked null-pointer check in mvcur changes from 20170722

20170722
	+ improve test-packages for ncurses-examples and AdaCurses for lintian
	+ 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 test/dots_mvcur.c for the
	  term-driver configuration.
	+ add dependency upon ncurses_cfg.h to a few other internal header
	  files to allow each to be compiled separately.
	+ 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.

20170715
	+ modify command-line parameters for "convert" used in picsmap to work
	  with ImageMagick 6.8 and newer.
	+ fix build-problem with tack and ABI-5 (Debian #868328).
	+ repair termcap-format from tic/infocmp broken in 20170701 fixes
	  (Debian #868266).
	+ reformat terminfo.src with 20170513 updates.
	+ improve test-packages to address lintian warnings.

20170708
	+ add a note to tic manual page about -W versus -f options.
	+ correct a limit-check in fixes from 20170701 (report by Sven Joachim).

20170701
	+ modify update_getenv() in db_iterator.c to ensure that environment
	  variables which are not initially set will be checked later if an
	  application happens to set them (patch by Guillaume Maudoux).
	+ remove initialization-check for calling napms() in the term-driver
	  configuration; none is needed.
	+ add help-screen to test/test_getstr.c and test/test_get_wstr.c
	+ improve compatibility between different configurations of new_prescr,
	  fixing a case with threaded code and term-driver where c++/demo did
	  not work (cf: 20160213).
	+ the fixes for Redhat #1464685 obscured a problem subsequently
	  reported in Redhat #1464687; the given test-case was no longer
	  reproducible.  Testing without the fixes for the earlier reports
	  showed a problem with buffer overflow in dump_entry.c, which is
	  addressed by reducing the use of a fixed-size buffer.
	+ add/improve checks in tic's parser to address invalid input
	  (Redhat #1464684, #1464685, #1464686, #1464691).
	  + alloc_entry.c, add a check for a null-pointer.
	  + parse_entry.c, add several checks for valid pointers as well as
	    one check to ensure that a single character on a line is not
	    treated as the 2-character termcap short-name.
	+ fix a memory leak in delscreen() (report by Bai Junq).
	+ improve tracemunch, showing thread identifiers as names.
	+ fix a use-after-free in NCursesMenu::~NCursesMenu()
	+ further amend incorrect calls for memory-leaks from 20170617 changes
	  (report by Allen Hewes).

20170624
	+ modify c++/etip.h.in to accommodate deprecation of throw() and
	  throws() in c++17 (prompted by patch by Romain Geissler).
	+ remove some incorrect calls for memory-leaks from 20170617 changes
	  (report by Allen Hewes).
	+ add test-programs for termattrs and term_attrs.
	+ 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 (Redhat #1345963).
	+ modify make_hash to allow building with address-sanitizer,
	  assuming that --disable-leaks is configured.
	+ amend changes for number_format() in 20170506 to avoid undefined
	  behavior when shifting (patch by Emanuele Giaquinta).

20170617
	+ fill in some places where TERMTYPE2 vs TERMTYPE was not used
	  (report by Allen Hewes).
	+ use ExitTerminfo() internally in error-exits for ncurses' setupterm
	  to help with leak checking.
	+ use ExitProgram() in error-exit from initscr() to help with leak
	  checking.
	+ review test-programs, adding checks for cases where the terminal
	  cannot be initialized.

20170610
	+ add option "-xp" to picsmap.c, to use init_extended_pair().
	+ make simple performance fixes for picsmap.c
	+ improve aspect ratio of images read from "convert" in picsmap.c

20170603
	+ add option to picsmap to use color-palette files, e.g., for mapping
	  to xterm-256color.
	+ move the data in SCREEN used for the alloc_pair() function to the
	  end, to restore compatibility between ncurses/ncursesw libtinfo
	  (report/patch by Miroslav Lichvar).
	+ add build-time utility "report_offsets" to help show when the various
	  configurations of tinfo library are compatible or not.

20170527
	+ improved test/picsmap.c:
	  + lookup named colors for xpm files in rgb.txt
	  + accept blanks in color-keys for xpm files.
	  + if neither xbm/xpm work, try "convert", which may be available.

20170520
	+ modify test/picsmap.c to read xpm files.
	+ modify package/debian/* to create documentation packages, so the
	  related files can be checked with lintian.
	+ fix some typos in manpages (report/patch by Sven Joachim).

20170513
	+ add test/picsmap.c to fill in some testing issues not met by dots.
	  The initial version reads X bitmap (".xbm") files.
	+ repair logic which forces a repaint where a color-pair's content is
	  changed (cf: 20170311).
	+ improve tracemunch, showing screenXX pointers as names.

20170506
	+ modify tic/infocmp display of numeric values to use hexadecimal when
	  they are "close" to a power of two, making the result more readable.
	+ improve discussion of portability in curs_mouse.3x
	+ change line-length for generated html/manpages to 78 columns from 65.
	+ improve discussion of line-drawing characters in curs_add_wch.3x
	  (prompted by discussion with Lorinczy Zsigmond).
	+ cleanup formatting of hackguide.html and ncurses-intro.html
	+ add examples for WACS_D_PLUS and WACS_T_PLUS to test/ncurses.c

20170429
	+ corrected a case where $with_gpm was set to "maybe" after CF_WITH_GPM,
	  overlooked in 20160528 fixes (report by Alexandre Bury).
	+ improve a couple of test-program's help-messages.
	+ corrected loop in rain.c from 20170415 changes.
	+ 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.
	+ improve discussion of NetBSD curses in scr_dump.5
	+ modify LIMIT_TYPED macro in new_pair.h to avoid changing sign of the
	  value to be limited (reports by Darby Payne, Rob Boudreau).
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20170422
	+ build-fix for termcap-configuration (report by Chi-Hsuan Yen).
	+ improve terminfo manual page discussion of control- and graphics-
	  characters.
	+ remove tic warning about "^?" in string capabilities, which was
	  marked as an extension (cf: 20000610, 20110820); however all Unix
	  implementations support this and X/Open Curses does not address it.
	  On the other hand, termcap never did support this feature.
	+ correct missing comma-separator between string capabilities in
	  icl6402 and m2-nam -TD
	+ restore rmir/smir in ansi+idc to better match original ansiterm+idc,
	  add alias ansiterm (report by Robert King).
	+ amend an old check for ambiguous use of "ma" in terminfo versus
	  a termcap use, if the capability is cancelled to treat it as number.
	+ correct a case in _nc_captoinfo() which read "%%" and emitted "%".
	+ 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_infotocap(), add a check to ensure that terminfo "^?" is not
	  written to termcap, because the BSDs did not implement that.
	+ in _nc_tic_expand() and _nc_infotocap(), improve string-length check
	  when deciding whether to use "^X" or "\xxx" format for control
	  characters, to make the output of tic/infocmp more predictable.
	+ limit 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.
	+ add man/scr_dump.5 to document screen-dump format.

20170415
	+ modify several test programs to use new popup_msgs, adapted from
	  help-screen used in test/edit_field.c
	+ drop two symbols obsoleted in 2004: _nc_check_termtype, and
	  _nc_resolve_uses
	+ fix some old copyright dates (cf: 20031025).
	+ build-fixes for test/savescreen.c to work with AIX and HPUX.
	+ minor fix to configure script, adding a backslash/continuation.
	+ extend TERMINAL structure for ABI 6 to store numbers internally as
	  integers rather than short, by adding new data for this purpose.
	+ more fixes for minor memory-leaks in test-programs.

20170408
	+ change logic in wins_nwstr() to avoid addressing data past the output
	  of mbstowcs().
	+ correct a call to setcchar() in Data_Entry_w() from 20131207 changes.
	+ fix minor memory-leaks in test-programs.
	+ further improve ifdef in term_entry.h for internal definitions not
	  used by tack.

20170401
	+ minor fixes for vt100+4bsd, e.g., delay in sgr for consistency -TD
	+ add smso for env230, to match sgr -TD
	+ remove p7/protect from sgr in fbterm -TD
	+ drop setf/setb from fbterm; setaf/setab are enough -TD
	+ make xterm-pcolor sgr consistent with other capabilities -TD
	+ add rmxx/smxx ECMA-48 strikeout extension to tmux and xterm-basic
	  (discussion with Nicholas Marriott)
	+ add test-programs sp_tinfo and extended_color
	+ modify no-leaks code for lib_cur_term.c to account for the tgetent()
	  cache.
	+ 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 set_curterm() to update ttytype[] data used by longname().
	+ modify wattr_set() and wattr_get() to return ERR if win-parameter is
	  null, as documented.
	+ improve cast used for null-pointer checks in header macros, to
	  reduce compiler warnings.
	+ modify several functions, using the reserved "opts" parameter to pass
	  color- and pair-values larger than 16-bits:
	  + getcchar(), setcchar(), slk_attr_set(), vid_puts(), wattr_get(),
	    wattr_set(), wchgat(), wcolor_set().
	  + Other functions call these with the corresponding altered behavior,
	    including chgat(), mvchgat(), mvwchgat(), slk_color_on(),
	    slk_color_off(), vid_attr().
	+ add new functions for manipulating color- and pair-values larger
	  than 16-bits.  These are extended_color_content(),
	  extended_pair_content(), extended_slk_color(), init_extended_color(),
	  init_extended_pair(), and the corresponding sp-funcs.

20170325
	+ fix a memory leak in the window-list when creating multiple screens
	  (reports by Andres Martinelli, Debian #783486).
	+ reviewed calls from link_test.c, added a few more null-pointer
	  checks.
	+ add a null-pointer check in ungetmouse, in case mousemask was not
	  called (report by "Kau").
	+ updated curs_sp_funcs.3x for new functions.

20170318
	+ change TERMINAL structure in term.h to make it opaque.  Some
	  applications misuse its members, e.g., directly modifying it
	  rather than using def_prog_mode().
	+ modify utility headers such as tic.h to make it clearer which are
	  externals that are used by tack.
	+ improve curs_slk.3x in particular its discussion of portability.
	+ fix cut/paste in legacy_encoding.3x
	+ add prototype for find_pair() to new_pair.3x (report by Branden
	  Robinson).
	+ fix a couple of broken links in generated man-html documentation.
	+ regenerate man-html documentation.

20170311
	+ modify vt100 rs2 string to reset vt52 mode and scrolling regions
	  (report/analysis by Robert King) -TD
	+ add vt100+4bsd building block, use that for older terminals rather
	  than "vt100" which is now mostly used as a building block for
	  terminal emulators -TD
	+ correct a few spelling errors in terminfo.src comments -TD
	+ add fbterm -TD
	+ fix a typo in ncurses.c test_attr legend (patch by Petr Vanek).
	+ changed internal colorpair_t to a struct, eliminating an internal
	  8-bit limit on colors
	+ add ncurses/new_pair.h
	+ add ncurses/base/new_pair.c with alloc_pair(), find_pair() and
	  free_pair() functions
	+ add test/demo_new_pair.c

20170304
	+ improve terminfo manual description of terminfo syntax.
	+ clarify the use of wint_t vs wchar_t in curs_get_wstr.3x
	+ improve description of endwin() in manual.
	+ modify setcchar() and getcchar() to treat negative color-pair as an
	  error.
	+ fix a typo in include/hashed_db.h (Andre Sa).

20170225
	+ fixes for CF_CC_ENV_FLAGS (report by Ross Burton).

20170218
	+ fix several formatting issues with manual pages.
	+ 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 "@, -".

20170212
	+ build-fixes for PGI compilers (report by Adam J. Stewart)
	  + 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.
	+ let configure --disable-ext-funcs override the default for the
	  --enable-sp-funcs option.
	+ mark some structs in form/menu/panel libraries as potentially opaque
	  without modifying API/ABI.
	+ add configure option --enable-opaque-curses for ncurses library and
	  similar options for the other libraries.

20170204
	+ trim newlines, tabs and escaped newlines from terminfo "paths" passed
	  to db-iterator.
	+ ignore zero-length files in db-iterator; these are useful for
	  instance to suppress "$HOME/.terminfo" when not wanted.
	+ amended "b64:" encoder to work with the terminfo reader.
	+ modify terminfo reader to accept "b64:" format using RFC-3548 in
	  as well as RFC-4648 url/filename-safe format.
	+ modify terminfo reader to accept "hex:" format as generated by
	  "infocmp -0qQ1" (cf: 20150905).
	+ adjust authors comment to reflect drop below 1% for SV.

20170128
	+ minor comment-fixes to help automate links to bug-urls -TD
	+ add dvtm, dvtm-256color -TD
	+ add settings corresponding to xterm-keys option to tmux entry to
	  reflect upcoming change to make that option "on" by default
	  (patch by Nicholas Marriott).
	+ uncancel Ms in tmux entry (Harry Gindi, Nicholas Marriott).
	+ add dumb-emacs-ansi -TD

20170121
	+ improve discussion of early history of tput program.
	+ incorporate A_COLOR mask into COLOR_PAIR(), in case user application
	  provides an out-of-range pair number (report by Elijah Stone).
	+ clarify description in tput manual page regarding support for
	  termcap names (prompted by FreeBSD #214709).
	+ remove a restriction in tput's support for termcap names which
	  omitted capabilities normally not shown in termcap translations
	  (cf: 990123).
	+ modify configure script for clang as used on FreeBSD, to work around
	  clang's differences in exit codes vs gcc.

20170114
	+ improve discussion of early history of tset/reset programs.
	+ clarify in manual pages that the optional verbose option level is
	  available only when ncurses is configured for tracing.
	+ amend change from 20161231 to avoid writing traces to the standard
	  error after initializing the trace feature using the environment
	  variable.

20170107
	+ 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.
	+ improve manual page descriptions of tput init/reset and tset/reset,
	  to make it easier to see how they are similar and different.
	+ move a static result from key_name() to _nc_globals
	+ 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.
	+ improve cross-references in manual pages for often used functions
	+ move SCREEN field for use_tioctl() data before the ncursesw fields,
	  and limit that to the sp-funcs configuration to improve termlib
	  compatibility (cf:  20120714).
	+ correct order of initialization for traces in use_env() and
	  use_tioctl() versus first trace calls.

20161231
	+ fix errata for ncurses-howto (report by Damien Ruscoe).
	+ fix a few places in configure/build scripts where DESTDIR and rpath
	  were combined (report by Thomas Klausner).
	+ merge current st description (report by Harry Gindi) -TD
	+ modify flash capability for linux and wyse entries to put the delay
	  between the reverse/normal escapes rather than after -TD
	+ modify program tabs to pass the actual tty file descriptor to
	  setupterm rather than the standard output, making padding work
	  consistently.
	+ explain in clear's manual page that it writes to stdout.
	+ add special case for verbose debugging traces of command-line
	  utilities which write to stderr (cf: 20161126).
	+ remove a trace with literal escapes from skip_DECSCNM(), added in
	  20161203.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20161224
	+ correct parameters for copywin call in _nc_Synchronize_Attributes()
	  (patch by Leon Winter).
	+ improve color-handling section in terminfo manual page (prompted by
	  patch by Mihail Konev).
	+ modify programs clear, tput and tset to pass the actual tty file
	  descriptor to setupterm rather than the standard output, making
	  padding work.

20161217
	+ add tput-colorcube demo script.
	+ add -r and -s options to tput-initc demo, to match usage in xterm.
	+ 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.

20161210
	+ add configure script 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 (prompted by comments in
	  Debian #230990, Redhat #1270534).
	+ add test/tput-initc to demonstrate tput used to initialize palette
	  from a data file.
	+ modify test/xterm*.dat to use the newer color4/color12 values.

20161203
	+ improve discussion of field validation in form_driver.3x manual page.
	+ update curs_trace.3x manual page.

20161126
	+ modify linux-16color to not mask dim, standout or reverse with the
	  ncv capability -TD
	+ add 0.1sec mandatory delay to flash capabilities using the VT100
	  reverse-video control -TD
	+ omit 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 will use ISO-8859-1 in any case (Mikulas Patocka).
	+ 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.
	+ minor fix for syntax-check of delays from 20161119 changes.
	+ modify trace() to avoid overwriting existing file (report by Maor
	  Shwartz).

20161119
	+ add check in tic for some syntax errors of delays, as well as use of
	  proportional delays for non-line capabilities.
	+ document history of the clear program and the E3 extension, prompted
	  by various discussions including
	  http://unix.stackexchange.com/questions/87469/clearing-the-old-scrollback-buffer

20161112
	+ improve -W option in tic/infocmp:
	  + correct order of size-adjustments in wrapped lines
	  + if -f option splits line, do not further split it with -W
	  + begin a new line when adding "use=" after a wrapped line

20161105
	+ fix typo in man/terminfo.tail (Alain Williams).
	+ correct program-name in adacurses6-config.1 manual page.

20161029
	+ add new function "unfocus_current_field" (Leon Winter)

20161022
	+ modify tset -w (and tput reset) to update the program's copy of the
	  screensize if it was already set in the system, to improve tabstop
	  setting which relies upon knowing the actual screensize.
	+ add functionality of tset -w to tput, like the "-c" feature this is
	  not optional in tput.
	+ add "clear" as a possible link/alias to tput.
	+ improve tput's check for being called as "init" or "reset" to allow
	  for transformed names.
	+ split-out the "clear" function from progs/clear.c, share with
	  tput to get the same behavior, e.g., the E3 extension.

20161015
	+ 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.
	+ regenerate llib-* files.
	+ regenerate HTML manpages.
	+ fix several formatting issues with manual pages.

20161008
	+ adjust size in infocmp/tic to work with strlcpy.
	+ fix configure script to record when strlcat is found on OpenBSD.
	+ build-fix for "recent" OpenBSD vs baudrate.

20161001
	+ 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.
	+ add linux-m1 minitel entries (patch by Alexandre Montaron).
	+ correct rs2 string for vt100-nam -TD

20160924
	+ modify _nc_tic_expand to escape comma if it immediately follows a
	  percent sign, to work with minitel change.
	+ updated minitel and viewdata descriptions (Alexandre Montaron).

20160917
	+ build-fix for gnat6, which unhelpfully attempts to compile C files.
	+ fix typo in 20160910 changes (Debian #837892, patch by Sven Joachim).

20160910
	+ trim dead code ifdef'd with HIDE_EINTR since 970830 (discussion with
	  Leon Winter).
	+ trim some obsolete/incorrect wording about EINTR from wgetch manual
	  page (patch by Leon Winter).
	+ really correct 20100515 change (patch by Rich Coe).
	+ add "--enable-string-hacks" option to test/configure
	+ completed string-hacks for "sprintf", etc., including test-programs.
	+ make "--enable-string-hacks" work with Debian by checking for the
	  "bsd" library and its associated "<bsd/string.h>" header.

20160903
	+ correct 20100515 change for weak signals versus sigprocmask (report
	  by Rich Coe).
	+ modify misc/Makefile.in to work around OpenBSD "make" which unlike
	  all other versions of "make" does not recognize continuation lines
	  of comments.
	+ amend the last change to CF_C_ENV_FLAGS to move 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 (report
	  by Sven Joachim).

20160827
	+ add "v" menu entry to test/ncurses.c to show baudrate and other
	  values.
	+ add "newer" baudrate symbols from Linux and FreeBSD to progs/tset.c,
	  lib_baudrate.c
	+ modify CF_XOPEN_SOURCE macro:
	  + add "uclinux" to case for "linux" (patch by Yann E. Morin)
	  + modify _GNU_SOURCE for cygwin headers, tested with cygwin 2.3, 2.5
	    (patch by Corinna Vinschen, from changes to tin).
	+ improve CF_CC_ENV_FLAGS macro to allow for compiler wrappers such
	  as "ccache" (report by Enrico Scholz).
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20160820
	+ update tput manual page to reflect changes to manipulate terminal
	  modes by sharing functions with tset.
	+ add the terminal-mode parts of "reset" (aka tset) to the "tput reset"
	  command, making the two almost the same except for window-size.
	+ adapt logic used in dialog "--keep-tite" option for test/filter.c as
	  "-a" option.  When set, test/filter attempts to suppress the
	  alternate screen.
	+ correct a typo in interix entry -TD

20160813
	+ add a dependency upon generated-sources in Ada95/src/Makefile.in to
	  handle a case of "configure && make install".
	+ trim trailing blanks from include/Caps*, to work around a problem
	  in sed (Debian #818067).

20160806
	+ improve CF_GNU_SOURCE configure macro to optionally define
	  _DEFAULT_SOURCE work around a nuisance in recent glibc releases.
	+ move the terminfo-specific parts of tput's "reset" function into
	  the shared reset_cmd.c, making the two forms of reset use the same
	  strings.
	+ split-out the terminal initialization functions from tset as
	  progs/reset_cmd.c, as part of changes to merge the reset-feature
	  with tput.

20160730
	+ 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.
	+ improve discussion of history and portability for tset/reset/tput
	  manual pages.

20160723
	+ improve error message from tset/reset when both stderr/stdout are
	  redirected to a file or pipe.
	+ improve organization of curs_attr.3x, curs_color.3x

20160709
	+ work around Debian's antique/unmaintained version of mawk when
	  building link_test.
	+ improve test/list_keys.c, showing ncurses's convention of modifiers
	  for special keys, based on xterm.

20160702
	+ improve test/list_keys.c, using $TERM if no parameters are given.

20160625
	+ build-fixes for ncurses "test_progs" rule.
	+ amend change to CF_CC_ENV_FLAGS in 20160521 to make multilib build
	  work (report by Sven Joachim).

20160618
	+ build-fixes for ncurses-examples with NetBSD curses.
	+ improve test/list_keys.c, fixing column-widths and sorting the list
	  to make it more readable.

20160611
	+ revise fix for Debian #805618 (report by Vlado Potisk, cf: 20151128).
	+ modify test/ncurses.c 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.
	+ modify rs1 for xterm-16color, xterm-88color and xterm-256color to
	  reset palette using "oc" string as in linux -TD
	+ use ANSI reply for u8 in xterm-new, to reflect vt220-style responses
	  that could be returned -TD
	+ added a few capabilities fixed in recent vte -TD

20160604
	+ correct logic for -f option in test/demo_terminfo.c
	+ add test/list_keys.c

20160528
	+ further workaround for PIE/PIC breakage which causes gpm to not link.
	+ fix most cppcheck warnings, mostly style, in ncurses library.

20160521
	+ improved manual page description of tset/reset versus window-size.
	+ fixes to work with a slightly broken compiler configuration which
	  cannot compile "Hello World!" without adding compiler options
	  (report by Ola x Nilsson):
	  + pass appropriate compiler options to the CF_PROG_CC_C_O macro.
	  + when separating compiler and options in CF_CC_ENV_FLAGS, ensure
	    that all options are split-off into CFLAGS or CPPFLAGS
	  + restore some -I options removed in 20140726 because they appeared
	    to be redundant.  In fact, they are needed for a compiler that
	    cannot combine -c and -o options.

20160514
	+ regenerate HTML manpages.
	+ improve manual pages for wgetch and wget_wch to point out that they
	  might return values without names in curses.h (Debian #822426).
	+ make linux3.0 entry the default linux entry (Debian #823658) -TD
	+ modify linux2.6 entry to improve line-drawing so that the linux3.0
	  entry can be used in non-UTF-8 mode -TD
	+ document return value of use_extended_names (report by Mike Gran).

20160507
	+ amend change to _nc_do_color to restore the early return for the
	  special case used in _nc_screen_wrap (report by Dick Streefland,
	  cf: 20151017).
	+ modify test/ncurses.c:
	  + check return-value of putwin
	  + correct ifdef which made the 'g' test's legend not reflect changes
	    to keypad- and scroll-modes.
	+ correct return-value of extended putwin (report by Mike Gran).

20160423
	+ modify test/ncurses.c 'd' edit-color menu 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 'oc' capability to xterm+256color, allowing palette reset for
	  xterm -TD

20160416
	+ add workaround in configure script for inept transition to PIE vs
	  PIC builds documented in
		  https://fedoraproject.org/wiki/Changes/Harden_All_Packages
	+ add "reset" to list of programs whose names might change in manpages
	  due to program-transformation configure options.
	+ drop long-obsolete "-n" option from tset.

20160409
	+ modify test/blue.c to use Unicode values for card-glyphs when
	  available, as well as improving the check for CP437 and CP850.

20160402
	+ regenerate HTML manpages.
	+ improve manual pages for utilities with respect to POSIX versus
	  X/Open Curses.

20160326
	+ regenerate HTML manpages.
	+ improve test/demo_menus.c, 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.

20160319
	+ improve description of tgoto parameters (report by Steffen Nurpmeso).
	+ amend workaround for Solaris line-drawing to restore a special case
	  that maps Unicode line-drawing characters into the acsc string for
	  non-Unicode locales (Debian #816888).

20160312
	+ modified test/filter.c to 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.

20160305
	+ omit a redefinition of "inline" when traces are enabled, since this
	  does not work with gcc 5.3.x MinGW cross-compiling (cf: 20150912).

20160220
	+ modify test/configure script to check for pthread dependency of
	  ncursest or ncursestw library when building ncurses examples, e.g.,
	  in case weak symbols are used.
	+ modify configure macro for shared-library rules to use -Wl,-rpath
	  rather than -rpath to work around a bug in scons (FreeBSD #178732,
	  cf: 20061021).
	+ double-width multibyte characters were not counted properly in
	  winsnstr and wins_nwstr (report/example by Eric Pruitt).
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20160213
	+ amend fix for _nc_ripoffline from 20091031 to make test/ditto.c work
	  in threaded configuration.
	+ move _nc_tracebits, _tracedump and _tracemouse to curses.priv.h,
	  since they are not part of the suggested ABI6.

20160206
	+ define WIN32_LEAN_AND_MEAN for MinGW port, making builds faster.
	+ modify test/ditto.c to allow $XTERM_PROG environment variable to
	  override "xterm" as the name of the program to run in the threaded
	  configuration.

20160130
	+ improve formatting of man/curs_refresh.3x and man/tset.1 manpages
	+ regenerate HTML manpages using newer man2html to eliminate some
	  unwanted blank lines.

20160123
	+ ifdef'd header-file definition of mouse_trafo() with NCURSES_NOMACROS
	  (report by Corey Minyard).
	+ fix some strict compiler-warnings in traces.

20160116
	+ tidy up comments about hardcoded 256color palette (report by
	  Leonardo Brondani Schenkel) -TD
	+ add putty-noapp entry, and amend putty entry to use application mode
	  for better consistency with xterm (report by Leonardo Brondani
	  Schenkel) -TD
	+ 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.

20160102
	+ modify ncurses c/C color test-screens to take advantage of wide
	  screens, reducing the number of lines used for 88- and 256-colors.
	+ minor refinement to check versus ncv to ignore two parameters of
	  SGR 38 and 48 when those come from color-capabilities.

20151226
	+ 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 conflict between ritm, rmso, rmul versus sgr0.

20151219
	+ add a paragraph to curs_getch.3x discussing key naming (discussion
	  with James Crippen).
	+ amend workaround for Solaris vs line-drawing to take the configure
	  check into account.
	+ add a configure check for wcwidth() versus the ncurses line-drawing
	  characters, to use in special-casing systems such as Solaris.

20151212
	+ improve CF_XOPEN_CURSES macro used in test/configure, 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
	  normally is since 20111030 ifdef'd depending on this test.
	+ improve 20121222 workaround for broken acs, letting Solaris "work"
	  in spite of its misconfigured wcwidth which marks all of the line
	  drawing characters as double-width.

20151205
	+ update form_cursor.3x, form_post.3x, menu_attributes.3x to list
	  function names in NAME section (patch by Jason McIntyre).
	+ 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 SP-funcs and threading (prompted by patches by
	  Jason McIntyre).

20151128
	+ add option to preserve leading whitespace in form fields (patch by
	  Leon Winter).
	+ add missing assignment in lib_getch.c to make notimeout() work
	  (Debian #805618).
	+ add 't' toggle for notimeout() function in test/ncurses.c a/A screens
	+ add viewdata terminal description (Alexandre Montaron).
	+ fix a case in tic/infocmp for formatting capabilities where a
	  backslash at the end of a string was mishandled.
	+ fix some typos in curs_inopts.3x (Benno Schulenberg).

20151121
	+ fix some inconsistencies in the pccon* entries -TD
	+ add bold to pccon+sgr+acs and pccon-base (Tati Chevron).
	+ add keys f12-f124 to pccon+keys (Tati Chevron).
	+ add test/test_sgr.c program to exercise all combinations of sgr.

20151107
	+ 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 program in 4.3BSD did
	  this to avoid using the short 2-character name (report by Rich
	  Burridge).
	+ minor fix to configure script to ensure that rules for resulting.map
	  are only generated when needed (cf: 20151101).
	+ 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 (prompted by comment in Debian #803482).

20151101
	+ amend change for pkg-config which allows build of pc-files when no
	  valid pkg-config library directory was configured to suppress the
	  actual install if it is not overridden to a valid directory at
	  install time (cf: 20150822).
	+ 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.
	+ fix a spurious "(Part)" message in test/ncurses.c b/B tests due
	  to incorrect attribute-masking.

20151024
	+ modify MKexpanded.sh to update the expansion of a temporary filename
	  to "expanded.c", for use in trace statements.
	+ modify layout of b/B tests in test/ncurses.c to allow for additional
	  annotation on the right margin; some terminals with partial support
	  did not display well.
	+ fix typo in curs_attr.3x (patch by Sven Joachim).
	+ fix typo in INSTALL (patch by Tomas Cech).
	+ improve configure check for setting WILDCARD_SYMS variable; on ppc64
	  the variable is in the Data section rather than Text (patch by Michel
	  Normand, Novell #946048).
	+ using configure option "--without-fallbacks" incorrectly caused
	  FALLBACK_LIST to be set to "no" (patch by Tomas Cech).
	+ updated minitel entries to fix kel problem with emacs, and add
	  minitel1b-nb (Alexandre Montaron).
	+ reviewed/updated nsterm entry Terminal.app in OSX -TD
	+ replace some dead URLs in comments with equivalents from the
	  Internet Archive -TD
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20151017
	+ modify ncurses/Makefile.in to sort keys.list in POSIX locale
	  (Debian #801864, patch by Esa Peuha).
	+ remove an early-return from _nc_do_color, which can interfere with
	  data needed by bkgd when ncurses is configured with extended colors
	  (patch by Denis Tikhomirov).
	> fixes for OS/2 (patches by KO Myung-Hun)
	+ use button instead of kbuf[0] in EMX-specific part of lib_mouse.c
	+ support building with libtool on OS/2
	+ use stdc++ on OS/2 kLIBC
	+ clear cf_XOPEN_SOURCE on OS/2

20151010
	+ add configure check for openpty to test/configure script, for ditto.
	+ minor fixes to test/view.c in investigating Debian #790847.
	+ update autoconf patch to 2.52.20150926, incorporates a fix for Cdk.
	+ add workaround for breakage of POSIX makefiles by recent binutils
	  change.
	+ improve check for working poll() by using posix_openpt() as a
	  fallback in case there is no valid terminal on the standard input
	  (prompted by discussion on bug-ncurses mailing list, Debian #676461).

20150926
	+ change makefile rule for removing resulting.map to distclean rather
	  than clean.
	+ add /lib/terminfo to terminfo-dirs in ".deb" test-package.
	+ add note on portability of resizeterm and wresize to manual pages.

20150919
	+ clarify in resizeterm.3x how KEY_RESIZE is pushed onto the input
	  stream.
	+ clarify in curs_getch.3x that the keypad mode affects ability to
	  read KEY_MOUSE codes, but does not affect KEY_RESIZE.
	+ add overlooked build-fix needed with Cygwin for separate Ada95
	  configure script, cf: 20150606 (report by Nicolas Boulenguez)

20150912
	+ fixes for configure/build using clang on OSX (prompted by report by
	  William Gallafent).
	  + 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 add of
	    "-lstdc++" 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

20150905
	+ add note in curs_addch.3x about line-drawing when it depends upon
	  UTF-8.
	+ add tic -q option for consistency with infocmp, use it to suppress
	  all comments from the "tic -I" output.
	+ modify infocmp -q option to suppress the "Reconstructed from"
	  header.
	+ add infocmp/tic -Q option, which allows one to dump the compiled
	  form of the terminal entry, in hexadecimal or base64.

20150822
	+ sort options in usage message for infocmp, to make it simpler to
	  see unused letters.
	+ update usage message for tic, adding "-0" option.
	+ documented differences in ESCDELAY versus AIX's implementation.
	+ fix some compiler warnings from ports.
	+ modify --with-pkg-config-libdir option to make it possible to install
	  ".pc" files even if pkg-config is not found (adapted from patch by
	  Joshua Root).

20150815
	+ disallow "no" as a possible value for "--with-shlib-version" option,
	  overlooked in cleanup-changes for 20000708 (report by Tommy Alex).
	+ update release notes in INSTALL.
	+ regenerate llib-* files to help with review for release notes.

20150810
	+ workaround for Debian #65617, which was fixed in mawk's upstream
	  releases in 2009 (report by Sven Joachim).  See
	  	https://invisible-island.net/mawk/CHANGES.html#t20090727

20150808 6.0 release for upload to ftp.gnu.org

20150808
	+ build-fix for Ada95 on older platforms without stdint.h
	+ build-fix for Solaris, whose /bin/sh and /usr/bin/sed are non-POSIX.
	+ update release announcement, summarizing more than 800 changes across
	  more than 200 snapshots.
	+ minor fixes to manpages, etc., to simplify linking from announcement
	  page.

20150725
	+ updated llib-* files.
	+ build-fixes for ncurses library "test_progs" rule.
	+ use alternate workaround for gcc 5.x feature (adapted from patch by
	  Mikhail Peselnik).
	+ add status line to tmux via xterm+sl (patch by Nicholas Marriott).
	+ fixes for st 0.5 from testing with tack -TD
	+ review/improve several manual pages to break up wall-of-text:
	  curs_add_wch.3x, curs_attr.3x, curs_bkgd.3x, curs_bkgrnd.3x,
	  curs_getcchar.3x, curs_getch.3x, curs_kernel.3x, curs_mouse.3x,
	  curs_outopts.3x, curs_overlay.3x, curs_pad.3x, curs_termattrs.3x
	  curs_trace.3x, and curs_window.3x

20150719
	+ correct an old logic error for %A and %O in tparm (report by "zreed").
	+ improve documentation for signal handlers by adding section in the
	  curs_initscr.3x page.
	+ modify logic in make_keys.c to not assume anything about the size
	  of strnames and strfnames variables, since those may be functions
	  in the thread- or broken-linker configurations (problem found by
	  Coverity).
	+ modify test/configure script to check for pthreads configuration,
	  e.g., ncursestw library.

20150711
	+ modify scripts to build/use test-packages for the pthreads
	  configuration of ncurses6.
	+ add references to ttytype and termcap symbols in demo_terminfo.c and
	  demo_termcap.c to ensure that when building ncursest.map, etc., that
	  the corresponding names such as _nc_ttytype are added to the list of
	  versioned symbols (report by Werner Fink)
	+ fix regression from 20150704 (report/patch by Werner Fink).

20150704
	+ fix a few problems reported by Coverity.
	+ fix comparison against "/usr/include" in misc/gen-pkgconfig.in
	  (report by Daiki Ueno, Debian #790548, cf:  20141213).

20150627
	+ modify configure script to remove deprecated ABI 5 symbols when
	  building ABI 6.
	+ add symbols _nc_Default_Field, _nc_Default_Form, _nc_has_mouse to
	  map-files, but marked as deprecated so that they can easily be
	  suppressed from ABI 6 builds (Debian #788610).
	+ comment-out "screen.xterm" entry, and inherit screen.xterm-256color
	  from xterm-new (report by Richard Birkett) -TD
	+ modify read_entry.c to set the error-return to -1 if no terminal
	  databases were found, as documented for setupterm.
	+ add test_setupterm.c to demonstrate normal/error returns from the
	  setupterm and restartterm functions.
	+ amend cleanup change from 20110813 which removed redundant definition
	  of ret_error, etc., from tinfo_driver.c, to account for the fact that
	  it should return a bool rather than int (report/analysis by Johannes
	  Schindelin).

20150613
	+ fix overflow warning for OSX with lib_baudrate.c (cf: 20010630).
	+ modify script used to generate map/sym files to mark 5.9.20150530 as
	  the last "5.9" version, and regenerated the files.  That makes the
	  files not use ".current" for the post-5.9 symbols.  This also
	  corrects the label for _nc_sigprocmask used in when weak symbols are
	  configured for the ncursest/ncursestw libraries (prompted by
	  discussion with Sven Joachim).
	+ fix typo in NEWS (report by Sven Joachim).

20150606 pre-release
	+ make ABI 6 the default by updates to dist.mk and VERSION, with the
	  intention that the existing ABI 5 should build as before using the
	  "--with-abi-version=5" option.
	+ regenerate ada- and man-html documentation.
	+ minor fixes to color- and util-manpages.
	+ fix a regression in Ada95/gen/Makefile.in, to handle special case of
	  Cygwin, which uses the broken-linker feature.
	+ amend fix for CF_NCURSES_CONFIG used in test/configure to assume that
	  ncurses package scripts work when present for cross-compiling, as the
	  lessor of two evils (cf: 20150530).
	+ add check in configure script to disallow conflicting options
	  "--with-termlib" and "--enable-term-driver".
	+ move defaults for "--disable-lp64" and "--with-versioned-syms" into
	  CF_ABI_DEFAULTS macro.

20150530
	+ change private type for Event_Mask in Ada95 binding to work when
	  mmask_t is set to 32-bits.
	+ remove spurious "%;" from st entry (report by Daniel Pitts) -TD
	+ add vte-2014, update vte to use that -TD
	+ modify tic and infocmp to "move" a diagnostic for tparm strings that
	  have a syntax error to tic's "-c" option (report by Daniel Pitts).
	+ fix two problems with configure script macros (Debian #786436,
	  cf: 20150425, cf: 20100529).

20150523
	+ add 'P' menu item to test/ncurses.c, to show pad in color.
	+ improve discussion in curs_color.3x about color rendering (prompted
	  by comment on Stack Overflow forum):
	+ remove screen-bce.mlterm, since mlterm does not do "bce" -TD
	+ add several screen.XXX entries to support the respective variations
	  for 256 colors -TD
	+ add putty+fnkeys* building-block entries -TD
	+ add smkx/rmkx to capabilities analyzed with infocmp "-i" option.

20150516
	+ amend change to ".pc" files to only use the extra loader flags which
	  may have rpath options (report by Sven Joachim, cf: 20150502).
	+ change versioning for dpkg's in test-packages for Ada95 and
	  ncurses-examples for consistency with Debian, to work with package
	  updates.
	+ regenerate html manpages.
	+ clarify handling of carriage return in waddch manual page; it was
	  discussed only in the portability section (prompted by comment on
	  Stack Overflow forum):

20150509
	+ add test-packages for cross-compiling ncurses-examples using the
	  MinGW test-packages.  These are only the Debian packages; RPM later.
	+ cleanup format of debian/copyright files
	+ add pc-files to the MinGW cross-compiling test-packages.
	+ correct a couple of places in gen-pkgconfig.in to handle renaming of
	  the tinfo library.

20150502
	+ modify the configure script to allow different default values
	  for ABI 5 versus ABI 6.
	+ add wgetch-events to test-packages.
	+ add a note on how to build ncurses-examples to test/README.
	+ fix a memory leak in delscreen (report by Daniel Kahn Gillmor,
	  Debian #783486) -TD
	+ remove unnecessary ';' from E3 capabilities -TD
	+ add tmux entry, derived from screen (patch by Nicholas Marriott).
	+ split-out recent change to nsterm-bce as nsterm-build326, and add
	  nsterm-build342 to reflect changes with successive releases of OSX
	  (discussion with Leonardo B Schenkel)
	+ add xon, ich1, il1 to ibm3161 (patch by Stephen Powell, Debian
	  #783806)
	+ add sample "magic" file, to document ext-putwin.
	+ modify gen-pkgconfig.in to add explicit -ltinfo, etc., to the
	  generated ".pc" file when ld option "--as-needed" is used, or when
	  ncurses and tinfo are installed without using rpath (prompted by
	  discussion with Sylvain Bertrand).
	+ modify test-package for ncurses6 to omit rpath feature when installed
	  in /usr.
	+ add OSX's "*.dSYM" to clean-rules in makefiles.
	+ make extra-suffix work for OSX configuration, e.g., for shared
	  libraries.
	+ modify Ada95/configure script to work with pkg-config
	+ move test-package for ncurses6 to /usr, since filename-conflicts have
	  been eliminated.
	+ corrected build rules for Ada95/gen/generate; it does not depend on
	  the ncurses library aside from headers.
	+ reviewed man pages, fixed a few other spelling errors.
	+ fix a typo in curs_util.3x (Sven Joachim).
	+ use extra-suffix in some overlooked shared library dependencies
	  found by 20150425 changes for test-packages.
	+ update config.guess, config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20150425
	+ expanded description of tgetstr's area pointer in manual page
	  (report by Todd M Lewis).
	+ in-progress changes to modify test-packages to use ncursesw6 rather
	  than ncursesw, with updated configure scripts.
	+ modify CF_NCURSES_CONFIG in Ada95- and test-configure scripts to
	  check for ".pc" files via pkg-config, but add a linkage check since
	  frequently pkg-config configurations are broken.
	+ modify misc/gen-pkgconfig.in to include EXTRA_LDFLAGS, e.g., for the
	  rpath option.
	+ add 'dim' capability to screen entry (report by Leonardo B Schenkel)
	+ add several key definitions to nsterm-bce to match preconfigured
	  keys, e.g., with OSX 10.9 and 10.10 (report by Leonardo B Schenkel)
	+ fix repeated "extra-suffix" in ncurses-config.in (cf: 20150418).
	+ improve term_variables manual page, adding section on the terminfo
	  long-name symbols which are defined in the term.h header.
	+ fix bug in lib_tracebits.c introduced in const-fixes (cf: 20150404).

20150418
	+ avoid a blank line in output from tabs program by ending it with
	  a carriage return as done in FreeBSD (patch by James Clarke).
	+ build-fix for the "--enable-ext-putwin" feature when not using
	  wide characters (report by Werner Fink).
	+ modify autoconf macros to use scripting improvement from xterm.
	+ add -brtl option to compiler options on AIX 5-7, needed to link
	  with the shared libraries.
	+ add --with-extra-suffix option to help with installing nonconflicting
	  ncurses6 packages, e.g., avoiding header- and library-conflicts.
	  NOTE: as a side-effect, this renames
		  adacurses-config to adacurses5-config and
		  adacursesw-config to adacursesw5-config
	+ modify debian/rules test package to suffix programs with "6".
	+ clarify in curs_inopts.3x that window-specific settings do not
	  inherit into new windows.

20150404
	+ improve description of start_color() in the manual.
	+ modify several files in ncurses- and progs-directories to allow
	  const data used in internal tables to be put by the linker into the
	  readonly text segment.

20150329
	+ correct cut/paste error for "--enable-ext-putwin" that made it the
	  same as "--enable-ext-colors" (report by Roumen Petrov)

20150328
	+ add "-f" option to test/savescreen.c to help with testing/debugging
	  the extended putwin/getwin.
	+ add logic for writing/reading combining characters in the extended
	  putwin/getwin.
	+ add "--enable-ext-putwin" configure option to turn on the extended
	  putwin/getwin.

20150321
	+ in-progress changes to provide an extended version of putwin and
	  getwin which will be capable of reading screen-dumps between the
	  wide/normal ncurses configurations.  These are text files, except
	  for a magic code at the beginning:
	  0       string          \210\210        Screen-dump (ncurses)

20150307
	+ document limitations of getwin in manual page (prompted by discussion
	  with John S Urban).
	+ extend test/savescreen.c to demonstrate that color pair values
	  and graphic characters can be restored using getwin.

20150228
	+ modify win_driver.c to eliminate the constructor, to make it more
	  usable in an application which may/may not need the console window
	  (report by Grady Martin).

20150221
	+ capture define's related to -D_XOPEN_SOURCE from the configure check
	  and add those to the *-config and *.pc files, to simplify use for
	  the wide-character libraries.
	+ modify ncurses.spec to accommodate Fedora21's location of pkg-config
	  directory.
	+ correct sense of "--disable-lib-suffixes" configure option (report
	  by Nicolas Boos, cf: 20140426).

20150214
	+ regenerate html manpages using improved man2html from work on xterm.
	+ regenerated ".map" and ".sym" files using improved script, accounting
	  for the "--enable-weak-symbols" configure option (report by Werner
	  Fink).

20150131
	+ regenerated ".map" and ".sym" files using improved script, showing
	  the combinations of configure options used at each stage.

20150124
	+ add configure check to determine if "local: _*;" can be used in the
	  ".map" files to selectively omit symbols beginning with "_".  On at
	  least recent FreeBSD, the wildcard applies to all "_" symbols.
	+ remove obsolete/conflicting rule for ncurses.map from
	  ncurses/Makefile.in (cf:  20130706).

20150117
	+ improve description in INSTALL of the --with-versioned-syms option.
	+ add combination of --with-hashed-db and --with-ticlib to
	  configurations for ".map" files (report by Werner Fink).

20150110
	+ add a step to generating ".map" files, to declare any remaining
	  symbols beginning with "_" as local, at the last version node.
	+ improve configure checks for pkg-config, addressing a variant found
	  with FreeBSD ports.
	+ modify win_driver.c to provide characters for special keys, like
	  ansi.sys, when keypad mode is off, rather than returning nothing at
	  all (discussion with Eli Zaretskii).
	+ add "broken_linker" and "hashed-db" configure options to combinations
	  use for generating the ".map" and ".sym" files.
	+ avoid using "ld" directly when creating shared library, to simplify
	  cross-compiles.  Also drop "-Bsharable" option from shared-library
	  rules for FreeBSD and DragonFly (FreeBSD #196592).
	+ fix a memory leak in form library Free_RegularExpression_Type()
	  (report by Pavel Balaev).

20150103
	+ modify_nc_flush() to retry if interrupted (patch by Stian Skjelstad).
	+ change map files to make _nc_freeall a global, since it may be used
	  via the Ada95 binding when checking for memory leaks.
	+ improve sed script used in 20141220 to account for wide-, threaded-
	  variations in ABI 6.

20141227
	+ regenerate ".map" files, using step overlooked in 20141213 to use
	  the same patch-dates across each file to match ncurses.map (report by
	  Sven Joachim).

20141221
	+ fix an incorrect variable assignment in 20141220 changes (report by
	  Sven Joachim).

20141220
	+ updated Ada95/configure with macro changes from 20141213
	+ tie configure options --with-abi-version and --with-versioned-syms
	  together, so that ABI 6 libraries have distinct symbol versions from
	  the ABI 5 libraries.
	+ replace obsolete/nonworking link to man2html with current one,
	  regenerate html-manpages.

20141213
	+ modify misc/gen-pkgconfig.in to add -I option for include-directory
	  when using both --prefix and --disable-overwrite (report by Misty
	  De Meo).
	+ add configure option --with-pc-suffix to allow minor renaming of
	  ".pc" files and the corresponding library.  Use this in the test
	  package for ncurses6.
	+ modify configure script so that if pkg-config is not installed, it
	  is still possible to install ".pc" files (report by Misty De Meo).
	+ updated ".sym" files, removing symbols which are marked as "local"
	  in the corresponding ".map" files.
	+ updated ".map" files to reflect move of comp_captab and comp_hash
	  from tic-library to tinfo-library in 20090711 (report by Sven
	  Joachim).

20141206
	+ updated ".map" files so that each symbol that may be shared across
	  the different library configurations has the same label.  Some
	  review is needed to ensure these are really compatible.
	+ modify MKlib_gen.sh to work around change in development version of
	  gcc introduced here:
		  https://gcc.gnu.org/ml/gcc-patches/2014-06/msg02185.html
		  https://gcc.gnu.org/ml/gcc-patches/2014-07/msg00236.html
	  (reports by Marcus Shawcroft, Maohui Lei).
	+ improved configure macro CF_SUBDIR_PATH, from lynx changes.

20141129
	+ improved ".map" files by generating them with a script that builds
	  ncurses with several related configurations and merges the results.
	  A further refinement is planned, to make the tic- and tinfo-library
	  symbols use the same versions across each of the four configurations
	  which are represented (reports by Sven Joachim, Werner Fink).

20141115
	+ improve description of limits for color values and color pairs in
	  curs_color.3x (prompted by patch by Tim van der Molen).
	+ add VERSION file, using first field in that to record the ABI version
	  used for configure --with-libtool --disable-libtool-version
	+ add configure options for applying the ".map" and ".sym" files to
	  the ncurses, form, menu and panel libraries.
	+ add ".map" and ".sym" files to show exported symbols, e.g., for
	  symbol-versioning.

20141101
	+ improve strict compiler-warnings by adding a cast in TRACE_RETURN
	  and making a new TRACE_RETURN1 macro for cases where the cast does
	  not apply.

20141025
	+ in-progress changes to integrate the win32 console driver with the
	  msys2 configuration.

20141018
	+ reviewed terminology 0.6.1, add function key definitions.  None of
	  the vt100-compatibility issues were improved -TD
	+ improve infocmp conversion of extended capabilities to termcap by
	  correcting the limit check against parametrized[], as well as filling
	  in a check if the string happens to have parameters, e.g., "xm"
	  in recent changes.
	+ add check for zero/negative dimensions for resizeterm and resize_term
	  (report by Mike Gran).

20141011
	+ add experimental support for xterm's 1005 mouse mode, to use in a
	  demonstration of its limitations.
	+ add experimental support for "%u" format to terminfo.
	+ modify test/ncurses.c to also show position reports in 'a' test.
	+ minor formatting fixes to _nc_trace_mmask_t, make this function
	  exported to help with debugging mouse changes.
	+ improve behavior of wheel-mice for xterm protocol, noting that there
	  are only button-presses for buttons "4" and "5", so there is no need
	  to wait to combine events into double-clicks (report/analysis by
	  Greg Field).
	+ provide examples xterm-1005 and xterm-1006 terminfo entries -TD
	+ implement decoder for xterm SGR 1006 mouse mode.

20140927
	+ implement curs_set in win_driver.c
	+ implement flash in win_driver.c
	+ fix an infinite loop in win_driver.c if the command-window loses
	  focus.
	+ improve the non-buffered mode, i.e., NCURSES_CONSOLE2, of
	  win_driver.c by temporarily changing the buffer-size to match the
	  window-size to eliminate the scrollback.  Also enforce a minimum
	  screen-size of 24x80 in the non-buffered mode.
	+ modify generated misc/Makefile to suppress install.data from the
	  dependencies if the --disable-db-install option is used, compensating
	  for the top-level makefile changes used to add ncurses*-config in the
	  20140920 changes (report by Steven Honeyman).

20140920
	+ add ncurses*-config to bin-directory of sample package-scripts.
	+ add check to ensure that getopt is available; this is a problem in
	  some older cross-compiler environments.
	+ expanded on the description of --disable-overwrite in INSTALL
	  (prompted by reports by Joakim Tjernlund, Thomas Klausner).
	  See Gentoo #522586 and NetBSD #49200 for examples.
	  which relates to the clarified guidelines.
	+ remove special logic from CF_INCLUDE_DIRS which adds the directory
	  for the --includedir from the build (report by Joakim Tjernlund).
	+ add case for Unixware to CF_XOPEN_SOURCE, from lynx changes.
	+ update config.sub from
		http://git.savannah.gnu.org/cgit/config.git

20140913
	+ add a configure check to ignore some of the plethora of non-working
	  C++ cross-compilers.
	+ build-fixes for Ada95 with gnat 4.9

20140906
	+ build-fix and other improvements for port of ncurses-examples to
	  NetBSD.
	+ minor compiler-warning fixes.

20140831
	+ modify test/demo_termcap.c and test/demo_terminfo.c to make their
	  options more directly comparable, and add "-i" option to specify
	  a terminal description filename to parse for names to lookup.

20140823
	+ fix special case where double-width character overwrites a single-
	  width character in the first column (report by Egmont Koblinger,
	  cf: 20050813).

20140816
	+ fix colors in ncurses 'b' test which did not work after changing
	  it to put the test-strings in subwindows (cf: 20140705).
	+ merge redundant SEE-ALSO sections in form and menu manpages.

20140809
	+ modify declarations for user-data pointers in C++ binding to use
	  reinterpret_cast to facilitate converting typed pointers to void*
	  in user's application (patch by Adam Jiang).
	+ regenerated html manpages.
	+ add note regarding cause and effect for TERM in ncurses manpage,
	  having noted clueless verbiage in Terminal.app's "help" file
	  which reverses cause/effect.
	+ remove special fallback definition for NCURSES_ATTR_T, since macros
	  have resolved type-mismatches using casts (cf: 970412).
	+ fixes for win_driver.c:
	  + handle repainting on endwin/refresh combination.
	  + implement beep().
	  + minor cleanup.

20140802
	+ minor portability fixes for MinGW:
	  + ensure WINVER is defined in makefiles rather than using headers
	  + add check for gnatprep "-T" option
	  + work around bug introduced by gcc 4.8.1 in MinGW which breaks
	    "trace" feature:
	    http://stackoverflow.com/questions/20877689/gcc-4-8-1-minggw-d-option-does-not-work-as-usual
	+ fix most compiler warnings for Cygwin ncurses-examples.
	+ restore "redundant" -I options in test/Makefile.in, since they are
	  typically needed when building the derived ncurses-examples package
	  (cf: 20140726).

20140726
	+ eliminate some redundant -I options used for building libraries, and
	  ensure that ${srcdir} is added to the include-options (prompted by
	  discussion with Paul Gilmartin).
	+ modify configure script to work with Minix3.2
	+ add form library extension O_DYNAMIC_JUSTIFY option which can be
	  used to override the different treatment of justification for static
	  versus dynamic fields (adapted from patch by Leon Winter).
	+ add a null pointer check in test/edit_field.c (report/analysis by
	  Leon Winter, cf: 20130608).

20140719
	+ make workarounds for compiling test-programs with NetBSD curses.
	+ improve configure macro CF_ADD_LIBS, to eliminate repeated -l/-L
	  options, from xterm changes.

20140712
	+ correct Charable() macro check for A_ALTCHARSET in wide-characters.
	+ build-fix for position-debug code in tty_update.c, to work with or
	  without sp-funcs.

20140705
	+ add w/W toggle to ncurses.c 'B' test, to demonstrate permutation of
	  video-attributes and colors with double-width character strings.

20140629
	+ correct check in win_driver.c for saving screen contents, e.g., when
	  NCURSES_CONSOLE2 is set (cf: 20140503).
	+ reorganize b/B menu items in ncurses.c, putting the test-strings into
	  subwindows.  This is needed for a planned change to use Unicode
	  fullwidth characters in the test-screens.
	+ correct update to form status for _NEWTOP, broken by fixes for
	  compiler warnings (patch by Leon Winter, cf: 20120616).

20140621
	+ change shared-library suffix for AIX 5 and 6 to ".so", avoiding
	  conflict with the static library (report by Ben Lentz).
	+ document RPATH_LIST in INSTALLATION file, as part of workarounds for
	  upgrading an ncurses library using the "--with-shared" option.
	+ modify test/ncurses.c c/C tests to cycle through subsets of the
	  total number of