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dnl***************************************************************************
dnl Copyright 2018-2019,2020 Thomas E. Dickey                                *
dnl Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
dnl                                                                          *
dnl Permission is hereby granted, free of charge, to any person obtaining a  *
dnl copy of this software and associated documentation files (the            *
dnl "Software"), to deal in the Software without restriction, including      *
dnl without limitation the rights to use, copy, modify, merge, publish,      *
dnl distribute, distribute with modifications, sublicense, and/or sell       *
dnl copies of the Software, and to permit persons to whom the Software is    *
dnl furnished to do so, subject to the following conditions:                 *
dnl                                                                          *
dnl The above copyright notice and this permission notice shall be included  *
dnl in all copies or substantial portions of the Software.                   *
dnl                                                                          *
dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
dnl                                                                          *
dnl Except as contained in this notice, the name(s) of the above copyright   *
dnl holders shall not be used in advertising or otherwise to promote the     *
dnl sale, use or other dealings in this Software without prior written       *
dnl authorization.                                                           *
dnl***************************************************************************
dnl
dnl Author: Thomas E. Dickey 1996-on
dnl
dnl $Id: configure.in,v 1.157 2020/02/02 23:34:34 tom Exp $
dnl This is a simple configuration-script for the ncurses test programs that
dnl allows the test-directory to be separately configured against a reference
dnl system (i.e., sysvr4 curses)
dnl
dnl If you're configuring ncurses, you shouldn't need to use this script.
dnl It's only for testing purposes.
dnl
dnl For additional information, see
dnl		https://invisible-island.net/autoconf/
dnl		https://invisible-island.net/autoconf/my-autoconf.html
dnl		https://invisible-island.net/ncurses/ncurses-examples.html
dnl ---------------------------------------------------------------------------
AC_PREREQ(2.52.20200111)
AC_INIT(ncurses.c)
AC_CONFIG_HEADER(ncurses_cfg.h:ncurses_tst.hin)

CF_INHERIT_SCRIPT(config.guess)
CF_INHERIT_SCRIPT(config.sub)
CF_CHECK_CACHE

AC_ARG_PROGRAM

CF_HELP_MESSAGE(General Options:)

AC_PROG_MAKE_SET
CF_PROG_CC
AC_C_INLINE
AC_PROG_CPP
AC_PROG_AWK
CF_PROG_INSTALL
CF_INSTALL_OPTS
CF_PROG_LINT
CF_MAKE_TAGS

CF_MATH_LIB(MATH_LIB,pow(sin(x),x))
AC_SUBST(MATH_LIB)

dnl Things that we don't need (or must override) if we're not building ncurses
CF_TOP_BUILDDIR
CC_G_OPT="-g"					AC_SUBST(CC_G_OPT)
CC_SHARED_OPTS=unknown			AC_SUBST(CC_SHARED_OPTS)
CPPFLAGS="$CPPFLAGS"			AC_SUBST(CPPFLAGS)
DFT_DEP_SUFFIX=""				AC_SUBST(DFT_DEP_SUFFIX)
DFT_OBJ_SUBDIR=`pwd|sed -e's:.*/::'`	AC_SUBST(DFT_OBJ_SUBDIR)
DFT_UPR_MODEL="NORMAL"			AC_SUBST(DFT_UPR_MODEL)
LD="ld"							AC_SUBST(LD)
LDFLAGS_SHARED=""				AC_SUBST(LDFLAGS_SHARED)
LDFLAGS_STATIC=""				AC_SUBST(LDFLAGS_STATIC)
LD_MODEL=""						AC_SUBST(LD_MODEL)
LD_SHARED_OPTS=""				AC_SUBST(LD_SHARED_OPTS)
LIBTOOL=""						AC_SUBST(LIBTOOL)
LIBTOOL_OPTS=""					AC_SUBST(LIBTOOL_OPTS)
LIB_CLEAN=""					AC_SUBST(LIB_CLEAN)
LIB_COMPILE=""					AC_SUBST(LIB_COMPILE)
LIB_LINK='${CC}'				AC_SUBST(LIB_LINK)
LINK_TESTS=""					AC_SUBST(LINK_TESTS)
LOCAL_LDFLAGS=""				AC_SUBST(LOCAL_LDFLAGS)
PACKAGE="ncurses-examples"		AC_SUBST(PACKAGE)
PTHREAD="-lm"					AC_SUBST(PTHREAD)
TEST_ARGS=""					AC_SUBST(TEST_ARGS)
TEST_DEPS=""					AC_SUBST(TEST_DEPS)
TEST_LIBS=""					AC_SUBST(TEST_LIBS)
TINFO_LDFLAGS=''				AC_SUBST(TINFO_LDFLAGS)
TINFO_LIBS='$(LIBS_CURSES)'		AC_SUBST(TINFO_LIBS)
cf_cv_abi_version=""			AC_SUBST(cf_cv_abi_version)
cf_cv_rel_version=""			AC_SUBST(cf_cv_rel_version)
includesubdir=""				AC_SUBST(includesubdir)

cf_cv_screen=curses
cf_cv_libtype=

AC_EXEEXT
AC_OBJEXT

CF_GCC_ATTRIBUTES
CF_ENABLE_STRING_HACKS
CF_XOPEN_SOURCE(600)
CF_SIG_ATOMIC_T

# Work around breakage on OS X
CF_SIGWINCH

# Checks for CODESET support.
AM_LANGINFO_CODESET

dnl ---------------------------------------------------------------------------
CF_PKG_CONFIG
CF_DISABLE_ECHO

dnl ---------------------------------------------------------------------------
CF_HELP_MESSAGE(Curses Version-dependent Options:)
CF_NCURSES_WRAP_PREFIX

AC_MSG_CHECKING(if you want to check for wide-character functions)
CF_ARG_DISABLE(widec,
	[  --disable-widec         disable checks for wide-character functions],
	cf_enable_widec=no,
	cf_enable_widec=yes,
	yes)
AC_MSG_RESULT($cf_enable_widec)

dnl ---------------------------------------------------------------------------
CF_HELP_MESSAGE(Curses Version-dependent Options:)
CF_WITH_NCURSES_ETC

case $cf_cv_screen in
(ncurses*)
	cf_cv_libtype=`echo "$cf_cv_screen" | sed -e 's/^ncurses//'`
	;;
esac

CF_WITH_X11_RGB

dnl If we've not specified a library, assume we're using sysvr4 libraries
dnl installed conventionally (e.g., SunOS 5.x - solaris).

dnl Autoconf builds up the $LIBS in reverse order

cf_curses_headers=

case $cf_cv_screen in
(pdcurses)
	cf_default_panel=no
	cf_default_form=no
	cf_default_menu=no
	cf_default_tinfo=no
	;;
(xcurses|bsdcurses)
	cf_default_panel=no
	cf_default_form=no
	cf_default_menu=no
	cf_default_tinfo=yes
	;;
(*)
	cf_default_panel=yes
	cf_default_form=yes
	cf_default_menu=yes
	cf_default_tinfo=yes
	case $cf_cv_screen in
	(ncurses*)
		cf_curses_headers="nc_alloc.h nomacros.h term_entry.h"
		;;
	esac
	;;
esac

AC_MSG_CHECKING(if you want to check for panel functions)
CF_ARG_DISABLE(panel,
	[  --disable-panel         disable checks for panel functions],
	cf_enable_panel=no,
	cf_enable_panel=$cf_default_panel,
	yes)
AC_MSG_RESULT($cf_enable_panel)
if test $cf_enable_panel = yes
then
	CF_CHECK_CURSES_LIB(panel,$cf_cv_libtype,new_panel,0)
	cf_curses_headers="$cf_curses_headers panel.h"
fi

AC_MSG_CHECKING(if you want to check for menu functions)
CF_ARG_DISABLE(menu,
	[  --disable-menu          disable checks for menu functions],
	cf_enable_menu=no,
	cf_enable_menu=$cf_default_menu,
	yes)
AC_MSG_RESULT($cf_enable_menu)
if test $cf_enable_menu = yes
then
	case $cf_cv_screen in
	(ncurses*)
		;;
	(curses*)
		CF_NETBSD_MENU_H
		;;
	esac
	CF_CHECK_CURSES_LIB(menu,$cf_cv_libtype,menu_driver,[0,0])
	cf_curses_headers="$cf_curses_headers menu.h"
fi

AC_MSG_CHECKING(if you want to check for form functions)
CF_ARG_DISABLE(form,
	[  --disable-form          disable checks for form functions],
	cf_enable_form=no,
	cf_enable_form=$cf_default_form,
	yes)
AC_MSG_RESULT($cf_enable_form)
if test $cf_enable_form = yes
then
	case $cf_cv_screen in
	(ncurses*)
		;;
	(curses*)
		CF_NETBSD_FORM_H
		;;
	esac
	CF_CHECK_CURSES_LIB(form,$cf_cv_libtype,form_driver,[0,0])
	cf_curses_headers="$cf_curses_headers form.h"
fi

# look for curses-related headers
AC_CHECK_HEADERS( $cf_curses_headers )

AC_STDC_HEADERS
AC_HEADER_TIME
AC_CHECK_HEADERS( \
getopt.h \
locale.h \
math.h \
stdarg.h \
stdint.h \
sys/ioctl.h \
sys/select.h \
sys/time.h \
termios.h \
unistd.h \
)

CF_GETOPT_HEADER

AC_CHECK_FUNCS( \
getopt \
gettimeofday \
strstr \
tsearch \
)

# use a compile-check to work with ncurses*-config and subdirectory includes
AC_CACHE_CHECK(if we can use termcap.h,cf_cv_have_termcap_h,[
	AC_TRY_COMPILE([
#include <curses.h>
#ifdef NCURSES_VERSION
#undef NCURSES_VERSION
#endif
#include <termcap.h>
#ifndef NCURSES_VERSION
#error wrong header
#endif
],
	[return 0;],
	[cf_cv_have_termcap_h=yes],
	[cf_cv_have_termcap_h=no])])
if test "x$cf_cv_have_termcap_h" = xyes
then
	AC_DEFINE(HAVE_TERMCAP_H,1,[Define to 1 if we can use termcap.h])
else
AC_CACHE_CHECK(if we can use ncurses/termcap.h,cf_cv_have_ncurses_termcap_h,[
	AC_TRY_COMPILE([
#include <ncurses/curses.h>
#ifdef NCURSES_VERSION
#undef NCURSES_VERSION
#endif
#include <ncurses/termcap.h>
#ifndef NCURSES_VERSION
#error wrong header
#endif
],
	[return 0;],
	[cf_cv_have_ncurses_termcap_h=yes],
	[cf_cv_have_ncurses_termcap_h=no])])
test "x$cf_cv_have_ncurses_termcap_h" = xyes && AC_DEFINE(HAVE_NCURSES_TERMCAP_H,1,[Define to 1 if we can use ncurses/termcap.h])
fi

if test "x$ac_cv_func_getopt" = xno; then
	AC_MSG_ERROR(getopt is required for building programs)
fi

if test "$cf_enable_widec" = yes; then
AC_CHECK_FUNCS( \
mblen \
mbrlen \
mbrtowc \
mbsrtowcs \
mbstowcs \
mbtowc \
wcsrtombs \
wcstombs \
)
fi

CF_CURSES_FUNCS( \
alloc_pair \
assume_default_colors \
chgat \
color_content \
color_set \
copywin \
delscreen \
dupwin \
filter \
getbegx \
getcurx \
getmaxx \
getnstr \
getparx \
getwin \
halfdelay \
init_extended_color \
mvderwin \
mvvline \
mvwin \
mvwvline \
napms \
newpad \
putwin \
reset_color_pairs \
resize_term \
resizeterm \
restartterm \
ripoffline \
scr_dump \
setupterm \
slk_color \
slk_init \
termattrs \
tgetent \
tigetnum \
tigetstr \
tputs_sp \
typeahead \
use_default_colors \
use_env \
use_extended_names \
use_screen \
use_window \
vid_puts \
vidputs \
vsscanf \
vw_printw \
wchgat \
winsdelln \
winsstr \
wresize \
wsyncdown \
_tracef \
)

CF_TPUTS_PROTO
CF_NCURSES_EXT_FUNCS

if test "$cf_enable_widec" = yes
then
	# workaround for systems with ncurses before 20111029, due to change of
	# feature test macro from _XPG5 to _XOPEN_SOURCE
	if test -n "$cf_cv_ncurses_version" && test "x$cf_cv_ncurses_version" != xno
	then
		cf_define_xpg5=no
		AC_MSG_CHECKING(if _XPG5 should be defined to enable wide-characters)

		AC_TRY_COMPILE([
#include <${cf_cv_ncurses_header:-curses.h}>],
			[int x = _XPG5],,
			[cf_save_cppflags="$CPPFLAGS"
			 CPPFLAGS="$CPPFLAGS -D_XPG5"
			 AC_TRY_COMPILE([
#include <${cf_cv_ncurses_header:-curses.h}>],
				[int x = _XPG5],
				[cf_define_xpg5=yes])
			 CPPFLAGS="$cf_save_cppflags"])
		AC_MSG_RESULT($cf_define_xpg5)

		if test "$cf_define_xpg5" = yes
		then
			CPPFLAGS="$CPPFLAGS -D_XPG5"
		fi
	fi

	AC_CACHE_CHECK(for wide-character functions,cf_cv_widechar_funcs,[
	AC_TRY_LINK([
#include <${cf_cv_ncurses_header:-curses.h}>],
	[
		static wchar_t src_wchar[2];
		static cchar_t dst_cchar;
		setcchar(&dst_cchar, src_wchar, A_NORMAL, 0, (void *) 0);
		],
		[cf_cv_widechar_funcs=yes],
		[cf_cv_widechar_funcs=no])
	])
	if test "$cf_cv_widechar_funcs" != no ; then
		AC_DEFINE(USE_WIDEC_SUPPORT,1,[Define to 1 to enable wide-character support in (n)curses])
	else
		AC_DEFINE(USE_WIDEC_SUPPORT,0)
	fi
else
	AC_DEFINE(USE_WIDEC_SUPPORT,0)
fi

AC_CACHE_CHECK(if $cf_cv_screen library uses pthreads,cf_cv_use_pthreads,[
AC_TRY_LINK([
#include <${cf_cv_ncurses_header:-curses.h}>
extern void _nc_init_pthreads(void);
],
[
	initscr();
	_nc_init_pthreads();
	],
	[cf_cv_use_pthreads=yes],
	[cf_cv_use_pthreads=no])
])
test $cf_cv_use_pthreads = yes && AC_DEFINE(USE_PTHREADS,1,[Define to 1 if $cf_cv_screen library uses pthreads])

CF_SYS_TIME_SELECT

# special check for test/ditto.c
CF_FUNC_OPENPTY
if test "$cf_cv_func_openpty" != no ; then
	AC_DEFINE_UNQUOTED(USE_OPENPTY_HEADER,<$cf_cv_func_openpty>,[Define to actual header for openpty function])
	AC_DEFINE(USE_XTERM_PTY,1,[Define to 1 if we should assume xterm pseudoterminal interface])
	if test "x$cf_cv_lib_util" = xyes ; then
		CF_ADD_LIB(util,TEST_LIBS)
	fi
fi

CF_FUNC_CURSES_VERSION

CF_CURSES_ACS_MAP
if test "$cf_enable_widec" = yes; then
	CF_CURSES_WACS_MAP
	CF_CURSES_WACS_SYMBOLS
fi

CF_CURSES_CHECK_TYPE(attr_t,long)

if test "$cf_enable_widec" = yes; then
	CF_WCHAR_TYPE(mbstate_t, NCURSES_MBSTATE_T, NCURSES_OK_MBSTATE_T)
	CF_WCHAR_TYPE(wchar_t,   NCURSES_WCHAR_T,   NCURSES_OK_WCHAR_T)
	CF_WCHAR_TYPE(wint_t,    NCURSES_WINT_T,    NCURSES_OK_WINT_T)

	if test "$NCURSES_OK_MBSTATE_T" = 0 ; then
		CF_CURSES_CHECK_TYPE(mbstate_t,long)
	fi

	if test "$NCURSES_OK_WCHAR_T" = 0 ; then
		CF_CURSES_CHECK_TYPE(wchar_t,long)
	fi

	if test "$NCURSES_OK_WINT_T" = 0 ; then
		CF_CURSES_CHECK_TYPE(wint_t,long)
	fi
fi

CF_CURSES_CHECK_DATA(\
TABSIZE \
curscr \
ospeed \
boolnames \
boolfnames \
ttytype)

dnl ---------------------------------------------------------------------------
CF_HELP_MESSAGE(Testing/development Options:)
CF_ENABLE_WARNINGS(Wno-unknown-pragmas)
CF_DISABLE_LEAKS
CF_DISABLE_RPATH_HACK

TEST_ARGS="$LIBS"
LIBS=

dnl ---------------------------------------------------------------------------

AC_OUTPUT(Makefile,[
CF_PRG_RULES([$srcdir/mk-test.awk INSTALL=yes ECHO_LINK="$ECHO_LD"], .)
	cat >>Makefile <<TEST_EOF

# These rules are generated so we do not rely on suffix rules, which do not
# work consistently for different make-programs (the '\$(MODEL)/' confuses
# some, and the '\$x' confuses others).
TEST_EOF

LIST=`sed -e 's/[[ 	]].*//' -e '/^[[#@]]/d' $srcdir/modules`
for N in $LIST
do
	cat >>Makefile <<TEST_EOF

\$(MODEL)/$N.o : \$(srcdir)/$N.c \\
	\$(srcdir)/test.priv.h \\
	ncurses_cfg.h
	$SHOW_CC
	$ECHO_CC\$(CC) -c \$(CFLAGS_DEFAULT) -DMODULE_NAME="$N" \$(srcdir)/$N.c
TEST_EOF
done

if test -f ../config.guess && test -f ../config.sub
then
	cat >>Makefile <<TEST_EOF

# if we used CF_INHERIT for getting these files, we can remove them
distclean::
	rm -f config.guess config.sub
TEST_EOF
fi
],[
AWK="$AWK"
ECHO_CC="$ECHO_CC"
ECHO_LD="$ECHO_LD"
SHOW_CC="$SHOW_LD"
],cat)