1 dnl***************************************************************************
2 dnl Copyright 2018-2022,2023 Thomas E. Dickey *
3 dnl Copyright 2003-2017,2018 Free Software Foundation, Inc. *
5 dnl Permission is hereby granted, free of charge, to any person obtaining a *
6 dnl copy of this software and associated documentation files (the *
7 dnl "Software"), to deal in the Software without restriction, including *
8 dnl without limitation the rights to use, copy, modify, merge, publish, *
9 dnl distribute, distribute with modifications, sublicense, and/or sell *
10 dnl copies of the Software, and to permit persons to whom the Software is *
11 dnl furnished to do so, subject to the following conditions: *
13 dnl The above copyright notice and this permission notice shall be included *
14 dnl in all copies or substantial portions of the Software. *
16 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 dnl Except as contained in this notice, the name(s) of the above copyright *
25 dnl holders shall not be used in advertising or otherwise to promote the *
26 dnl sale, use or other dealings in this Software without prior written *
28 dnl***************************************************************************
30 dnl $Id: aclocal.m4,v 1.210 2023/01/11 09:05:23 tom Exp $
32 dnl Author: Thomas E. Dickey
34 dnl Macros used in NCURSES test programs auto-configuration script.
36 dnl These macros are maintained separately from NCURSES. The copyright on
37 dnl this file applies to the aggregation of macros and does not affect use of
38 dnl these macros in other applications.
40 dnl See these pages for additional information:
41 dnl https://invisible-island.net/autoconf/
42 dnl https://invisible-island.net/autoconf/my-autoconf.html
44 dnl ---------------------------------------------------------------------------
45 dnl ---------------------------------------------------------------------------
46 dnl AM_LANGINFO_CODESET version: 7 updated: 2023/01/11 04:05:23
47 dnl -------------------
48 dnl Inserted as requested by gettext 0.10.40
49 dnl File from /usr/share/aclocal
51 dnl ====================
54 dnl From Bruno Haible.
55 AC_DEFUN([AM_LANGINFO_CODESET],
57 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
60 #include <langinfo.h>],
61 [char* cs = nl_langinfo(CODESET); (void)cs],
62 am_cv_langinfo_codeset=yes,
63 am_cv_langinfo_codeset=no)
65 if test "$am_cv_langinfo_codeset" = yes; then
66 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
67 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
70 dnl ---------------------------------------------------------------------------
71 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
72 dnl ------------------
73 dnl Conditionally generate script according to whether we're using a given autoconf.
75 dnl $1 = version to compare against
76 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
77 dnl $3 = code to use if AC_ACVERSION is older than $1.
78 define([CF_ACVERSION_CHECK],
80 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
81 ifdef([m4_version_compare],
82 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
83 [CF_ACVERSION_COMPARE(
84 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
85 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
86 dnl ---------------------------------------------------------------------------
87 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
88 dnl --------------------
89 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
90 dnl MAJOR2, MINOR2, TERNARY2,
91 dnl PRINTABLE2, not FOUND, FOUND)
92 define([CF_ACVERSION_COMPARE],
93 [ifelse(builtin([eval], [$2 < $5]), 1,
94 [ifelse([$8], , ,[$8])],
95 [ifelse([$9], , ,[$9])])])dnl
96 dnl ---------------------------------------------------------------------------
97 dnl CF_ADD_CFLAGS version: 15 updated: 2020/12/31 10:54:15
99 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
100 dnl $1 = flags to add
101 dnl $2 = if given makes this macro verbose.
103 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
104 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
105 dnl confused by the quotes (which require backslashes to keep them usable).
106 AC_DEFUN([CF_ADD_CFLAGS],
111 cf_new_extra_cppflags=
113 for cf_add_cflags in $1
115 case "$cf_fix_cppflags" in
117 case "$cf_add_cflags" in
118 (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
119 case "$cf_add_cflags" in
121 cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
123 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
124 && test -z "${cf_tst_cflags}" \
125 && cf_fix_cppflags=yes
127 if test "$cf_fix_cppflags" = yes ; then
128 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
130 elif test "${cf_tst_cflags}" = "\"'" ; then
131 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
140 case "$cf_add_cflags" in
142 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
143 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
146 CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
151 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
156 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
158 cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
160 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
161 && test -z "${cf_tst_cflags}" \
162 && cf_fix_cppflags=no
167 if test -n "$cf_new_cflags" ; then
168 ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
169 CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
172 if test -n "$cf_new_cppflags" ; then
173 ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
174 CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
177 if test -n "$cf_new_extra_cppflags" ; then
178 ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
179 CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
182 AC_SUBST(EXTRA_CPPFLAGS)
185 dnl ---------------------------------------------------------------------------
186 dnl CF_ADD_INCDIR version: 17 updated: 2021/09/04 06:35:04
188 dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it is
189 dnl redundant. We don't normally need to add -I/usr/local/include for gcc,
190 dnl but old versions (and some misinstalled ones) need that. To make things
191 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
192 dnl the include-path).
193 AC_DEFUN([CF_ADD_INCDIR],
195 if test -n "$1" ; then
196 for cf_add_incdir in $1
198 while test "$cf_add_incdir" != /usr/include
200 if test -d "$cf_add_incdir"
203 if test -n "$CFLAGS$CPPFLAGS" ; then
204 # a loop is needed to ensure we can add subdirs of existing dirs
205 for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
206 if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
207 cf_have_incdir=yes; break
212 if test "$cf_have_incdir" = no ; then
213 if test "$cf_add_incdir" = /usr/local/include ; then
216 cf_save_CPPFLAGS=$CPPFLAGS
217 CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
218 AC_TRY_COMPILE([#include <stdio.h>],
221 [cf_have_incdir=yes])
222 CPPFLAGS=$cf_save_CPPFLAGS
227 if test "$cf_have_incdir" = no ; then
228 CF_VERBOSE(adding $cf_add_incdir to include-path)
229 ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
231 cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
232 test "$cf_top_incdir" = "$cf_add_incdir" && break
233 cf_add_incdir="$cf_top_incdir"
244 dnl ---------------------------------------------------------------------------
245 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
247 dnl Add a library, used to enforce consistency.
249 dnl $1 = library to add, without the "-l"
250 dnl $2 = variable to update (default $LIBS)
251 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
252 dnl ---------------------------------------------------------------------------
253 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
255 dnl Adds to the library-path
257 dnl Some machines have trouble with multiple -L options.
259 dnl $1 is the (list of) directory(s) to add
260 dnl $2 is the optional name of the variable to update (default LDFLAGS)
262 AC_DEFUN([CF_ADD_LIBDIR],
264 if test -n "$1" ; then
265 for cf_add_libdir in $1
267 if test "$cf_add_libdir" = /usr/lib ; then
269 elif test -d "$cf_add_libdir"
272 if test -n "$LDFLAGS$LIBS" ; then
273 # a loop is needed to ensure we can add subdirs of existing dirs
274 for cf_test_libdir in $LDFLAGS $LIBS ; do
275 if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
276 cf_have_libdir=yes; break
280 if test "$cf_have_libdir" = no ; then
281 CF_VERBOSE(adding $cf_add_libdir to library-path)
282 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
288 dnl ---------------------------------------------------------------------------
289 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
291 dnl Add one or more libraries, used to enforce consistency. Libraries are
292 dnl prepended to an existing list, since their dependencies are assumed to
293 dnl already exist in the list.
295 dnl $1 = libraries to add, with the "-l", etc.
296 dnl $2 = variable to update (default $LIBS)
297 AC_DEFUN([CF_ADD_LIBS],[
298 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
301 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
303 for cf_add_1lib in $cf_add_0lib; do
304 for cf_add_2lib in $cf_add_libs; do
305 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
310 test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
312 ifelse($2,,LIBS,[$2])="$cf_add_libs"
314 dnl ---------------------------------------------------------------------------
315 dnl CF_ADD_LIB_AFTER version: 3 updated: 2013/07/09 21:27:22
317 dnl Add a given library after another, e.g., following the one it satisfies a
320 dnl $1 = the first library
321 dnl $2 = its dependency
322 AC_DEFUN([CF_ADD_LIB_AFTER],[
323 CF_VERBOSE(...before $LIBS)
324 LIBS=`echo "$LIBS" | sed -e "s/[[ ]][[ ]]*/ /g" -e "s%$1 %$1 $2 %" -e 's% % %g'`
325 CF_VERBOSE(...after $LIBS)
327 dnl ---------------------------------------------------------------------------
328 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
329 dnl ------------------
330 dnl Append to a search-list for a nonstandard header/lib-file
331 dnl $1 = the variable to return as result
332 dnl $2 = the package name
333 dnl $3 = the subdirectory, e.g., bin, include or lib
334 dnl $4 = the directory under which we will test for subdirectories
335 dnl $5 = a directory that we do not want $4 to match
336 AC_DEFUN([CF_ADD_SUBDIR_PATH],
338 test "x$4" != "x$5" && \
340 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
341 test -n "$verbose" && echo " ... testing for $3-directories under $4"
342 test -d "$4/$3" && $1="[$]$1 $4/$3"
343 test -d "$4/$3/$2" && $1="[$]$1 $4/$3/$2"
344 test -d "$4/$3/$2/$3" && $1="[$]$1 $4/$3/$2/$3"
345 test -d "$4/$2/$3" && $1="[$]$1 $4/$2/$3"
346 test -d "$4/$2/$3/$2" && $1="[$]$1 $4/$2/$3/$2"
349 dnl ---------------------------------------------------------------------------
350 dnl CF_APPEND_CFLAGS version: 3 updated: 2021/09/05 17:25:40
352 dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
353 dnl $1 = flags to add
354 dnl $2 = if given makes this macro verbose.
355 define([CF_APPEND_CFLAGS],
357 for cf_add_cflags in $1
359 case "x$cf_add_cflags" in
361 CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
362 CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
365 CF_ADD_CFLAGS([$cf_add_cflags],[$2])
368 dnl ---------------------------------------------------------------------------
369 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
371 dnl use this macro for appending text without introducing an extra blank at
373 define([CF_APPEND_TEXT],
375 test -n "[$]$1" && $1="[$]$1 "
378 dnl ---------------------------------------------------------------------------
379 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
381 dnl Allow user to disable a normally-on option.
382 AC_DEFUN([CF_ARG_DISABLE],
383 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
384 dnl ---------------------------------------------------------------------------
385 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
387 dnl Allow user to enable a normally-off option.
388 AC_DEFUN([CF_ARG_ENABLE],
389 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
390 dnl ---------------------------------------------------------------------------
391 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
393 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
399 dnl $3 = action to perform if option is not default
400 dnl $4 = action if perform if option is default
401 dnl $5 = default option value (either 'yes' or 'no')
402 AC_DEFUN([CF_ARG_OPTION],
403 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
404 if test "$enableval" != "$5" ; then
406 ,[ $3]) ifelse([$4],,,[
409 fi],[enableval=$5 ifelse([$4],,,[
413 dnl ---------------------------------------------------------------------------
414 dnl CF_C11_NORETURN version: 3 updated: 2021/03/28 11:36:23
416 AC_DEFUN([CF_C11_NORETURN],
418 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
419 CF_ARG_ENABLE(stdnoreturn,
420 [ --enable-stdnoreturn enable C11 _Noreturn feature for diagnostics],
421 [enable_stdnoreturn=yes],
422 [enable_stdnoreturn=no])
423 AC_MSG_RESULT($enable_stdnoreturn)
425 if test $enable_stdnoreturn = yes; then
426 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
430 #include <stdnoreturn.h>
431 static _Noreturn void giveup(void) { exit(0); }
433 [if (feof(stdin)) giveup()],
434 cf_cv_c11_noreturn=yes,
435 cf_cv_c11_noreturn=no)
438 cf_cv_c11_noreturn=no,
441 if test "$cf_cv_c11_noreturn" = yes; then
442 AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
443 AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
449 AC_SUBST(HAVE_STDNORETURN_H)
450 AC_SUBST(STDC_NORETURN)
452 dnl ---------------------------------------------------------------------------
453 dnl CF_CC_ENV_FLAGS version: 10 updated: 2020/12/31 18:40:20
455 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
456 dnl into CC. This will not help with broken scripts that wrap the compiler
457 dnl with options, but eliminates a more common category of user confusion.
459 dnl In particular, it addresses the problem of being able to run the C
460 dnl preprocessor in a consistent manner.
462 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
463 dnl the nuisance of having inconsistent settings for compiler and preprocessor
464 dnl outweighs that limitation.
465 AC_DEFUN([CF_CC_ENV_FLAGS],
467 # This should have been defined by AC_PROG_CC
470 AC_MSG_CHECKING(\$CFLAGS variable)
473 AC_MSG_RESULT(broken)
474 AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
477 for cf_arg in $cf_flags
479 CF_ADD_CFLAGS($cf_arg)
487 AC_MSG_CHECKING(\$CC variable)
490 AC_MSG_RESULT(broken)
491 AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
493 cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
494 cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
496 for cf_arg in $cf_flags
500 CF_ADD_CFLAGS($cf_arg)
507 CF_VERBOSE(resulting CC: '$CC')
508 CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
509 CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
516 dnl ---------------------------------------------------------------------------
517 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
519 dnl Check if we're accidentally using a cache from a different machine.
520 dnl Derive the system name, as a check for reusing the autoconf cache.
522 dnl If we've packaged config.guess and config.sub, run that (since it does a
523 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
524 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
525 dnl which is useful in cross-compiles.
527 dnl Note: we would use $ac_config_sub, but that is one of the places where
528 dnl autoconf 2.5x broke compatibility with autoconf 2.13
529 AC_DEFUN([CF_CHECK_CACHE],
531 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
532 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
533 system_name="$host_os"
535 system_name="`(uname -s -r) 2>/dev/null`"
536 if test -z "$system_name" ; then
537 system_name="`(hostname) 2>/dev/null`"
540 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
541 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
543 test -z "$system_name" && system_name="$cf_cv_system_name"
544 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
546 if test ".$system_name" != ".$cf_cv_system_name" ; then
547 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
548 AC_MSG_ERROR("Please remove config.cache and try again.")
551 dnl ---------------------------------------------------------------------------
552 dnl CF_CHECK_CFLAGS version: 4 updated: 2021/01/02 19:22:58
554 dnl Conditionally add to $CFLAGS and $CPPFLAGS values which are derived from
555 dnl a build-configuration such as imake. These have the pitfall that they
556 dnl often contain compiler-specific options which we cannot use, mixed with
557 dnl preprocessor options that we usually can.
558 AC_DEFUN([CF_CHECK_CFLAGS],
560 CF_VERBOSE(checking additions to CFLAGS)
561 cf_check_cflags="$CFLAGS"
562 cf_check_cppflags="$CPPFLAGS"
563 CF_ADD_CFLAGS($1,yes)
564 if test "x$cf_check_cflags" != "x$CFLAGS" ; then
565 AC_TRY_LINK([#include <stdio.h>],[printf("Hello world");],,
566 [CF_VERBOSE(test-compile failed. Undoing change to \$CFLAGS)
567 if test "x$cf_check_cppflags" != "x$CPPFLAGS" ; then
568 CF_VERBOSE(but keeping change to \$CPPFLAGS)
570 CFLAGS="$cf_check_cflags"])
573 dnl ---------------------------------------------------------------------------
574 dnl CF_CHECK_CURSES_LIB version: 4 updated: 2021/09/05 17:25:40
575 dnl -------------------
576 dnl $1 = nominal library name, used also for header lookup
577 dnl $2 = suffix to append to library name
578 dnl $3 = function to check for using AC_CHECK_LIB
579 dnl $4 = optional parameter list for $3
580 AC_DEFUN([CF_CHECK_CURSES_LIB],
582 AC_REQUIRE([CF_PKG_CONFIG])
584 cf_have_curses_lib=no
586 : ${NCURSES_CONFIG_PKG:=none}
587 if test "x${NCURSES_CONFIG_PKG}" = xnone; then
589 elif test "x${PKG_CONFIG:=none}" != xnone; then
590 AC_MSG_CHECKING(pkg-config for $1$2)
591 if "$PKG_CONFIG" --exists "$1$2" ; then
594 AC_MSG_CHECKING(if the $1$2 package files work)
596 cf_save_CFLAGS="$CFLAGS"
597 cf_save_CPPFLAGS="$CPPFLAGS"
600 CF_APPEND_CFLAGS(`$PKG_CONFIG --cflags "$1$2"`)
601 CF_ADD_LIBS(`$PKG_CONFIG --libs "$1$2"`)
603 AC_TRY_LINK([#include <$1.h>],
604 [(void) $3 ( ]ifelse([$4],,,[[$4]])[ );],
605 [AC_TRY_RUN([#include <$1.h>
607 { (void) $3 ( ]ifelse([$4],,,[[$4]])[ ); return 0; }],
608 [cf_have_curses_lib=yes],
609 [cf_have_curses_lib=no],
610 [cf_have_curses_lib=maybe])],
611 [cf_have_curses_lib=no])
612 AC_MSG_RESULT($cf_have_curses_lib)
613 test "$cf_have_curses_lib" = maybe && cf_have_curses_lib=yes
614 if test "$cf_have_curses_lib" = "yes"
616 CF_UPPER(cf_upper,have_lib$1)
617 AC_DEFINE_UNQUOTED($cf_upper,1)
619 CFLAGS="$cf_save_CFLAGS"
620 CPPFLAGS="$cf_save_CPPFLAGS"
625 if test "$cf_have_curses_lib" = no; then
626 AC_CHECK_LIB($1$2,$3,[
627 CF_UPPER(cf_upper,have_lib$1)
629 AC_DEFINE_UNQUOTED($cf_upper,1)])
632 dnl ---------------------------------------------------------------------------
633 dnl CF_CLANG_COMPILER version: 8 updated: 2021/01/01 13:31:04
634 dnl -----------------
635 dnl Check if the given compiler is really clang. clang's C driver defines
636 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
637 dnl not ignore some gcc options.
639 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
640 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
641 dnl the wrappers for gcc and g++ warnings.
643 dnl $1 = GCC (default) or GXX
644 dnl $2 = CLANG_COMPILER (default)
645 dnl $3 = CFLAGS (default) or CXXFLAGS
646 AC_DEFUN([CF_CLANG_COMPILER],[
647 ifelse([$2],,CLANG_COMPILER,[$2])=no
649 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
650 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
651 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
657 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
659 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
660 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
665 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
667 (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
668 AC_MSG_WARN(replacing broken compiler alias $CC)
669 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
674 AC_MSG_CHECKING(version of $CC)
675 CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
676 test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
677 AC_MSG_RESULT($CLANG_VERSION)
679 for cf_clang_opt in \
681 -Wno-error=implicit-function-declaration
683 AC_MSG_CHECKING(if option $cf_clang_opt works)
684 cf_save_CFLAGS="$CFLAGS"
685 CFLAGS="$CFLAGS $cf_clang_opt"
687 #include <stdio.h>],[
688 printf("hello!\\n");],[
689 cf_clang_optok=yes],[
691 AC_MSG_RESULT($cf_clang_optok)
692 CFLAGS="$cf_save_CFLAGS"
693 if test "$cf_clang_optok" = yes; then
694 CF_VERBOSE(adding option $cf_clang_opt)
695 CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
700 dnl ---------------------------------------------------------------------------
701 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
702 dnl -----------------
703 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
704 dnl character-strings.
706 dnl It is ambiguous because the specification accommodated the pre-ANSI
707 dnl compilers bundled by more than one vendor in lieu of providing a standard C
708 dnl compiler other than by costly add-ons. Because of this, the specification
709 dnl did not take into account the use of const for telling the compiler that
710 dnl string literals would be in readonly memory.
712 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
713 dnl let the compiler decide how to represent Xt's strings which were #define'd.
714 dnl That does not solve the problem of using the block of Xt's strings which
715 dnl are compiled into the library (and is less efficient than one might want).
717 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
718 dnl when compiling the library and compiling using the library, to tell the
719 dnl compiler that String is const.
720 AC_DEFUN([CF_CONST_X_STRING],
722 AC_REQUIRE([AC_PATH_XTRA])
724 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
729 #include <X11/Intrinsic.h>
731 [String foo = malloc(1); free((void*)foo)],[
733 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
736 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
737 #undef XTSTRINGDEFINES /* X11R5 and later */
739 #include <X11/Intrinsic.h>
740 ],[String foo = malloc(1); *foo = 0],[
741 cf_cv_const_x_string=no
743 cf_cv_const_x_string=yes
747 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
749 case "$cf_cv_const_x_string" in
751 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
754 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
760 dnl ---------------------------------------------------------------------------
761 dnl CF_CURSES_ACS_MAP version: 8 updated: 2021/01/04 19:45:09
762 dnl -----------------
763 dnl Check for likely values of acs_map[]:
764 AC_DEFUN([CF_CURSES_ACS_MAP],
766 AC_REQUIRE([CF_NCURSES_WRAP_PREFIX])dnl
767 AC_CACHE_CHECK(for alternate character set array, cf_cv_curses_acs_map,[
768 cf_cv_curses_acs_map=unknown
769 for name in acs_map _acs_map __acs_map ${NCURSES_WRAP_PREFIX}acs_map
772 #include <${cf_cv_ncurses_header:-curses.h}>
774 ${name}['k'] = ACS_PLUS
775 ],[cf_cv_curses_acs_map=$name; break])
779 test "$cf_cv_curses_acs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_ACS_ARRAY,$cf_cv_curses_acs_map,[Define as needed to override ncurses prefix _nc_])
781 dnl ---------------------------------------------------------------------------
782 dnl CF_CURSES_CHECK_DATA version: 10 updated: 2021/01/04 19:45:09
783 dnl --------------------
784 dnl Check if curses.h defines the given data/variable.
785 dnl Use this after CF_NCURSES_CONFIG or CF_CURSES_CONFIG.
787 dnl $1 = data item(s) to check for
788 dnl $2 = action on success, e.g., "break" to quit checking a series of choices
789 AC_DEFUN([CF_CURSES_CHECK_DATA],
793 AC_MSG_CHECKING(for data $cf_data declaration in ${cf_cv_ncurses_header:-curses.h})
795 AC_TRY_COMPILE(CF__CURSES_HEAD,
796 CF__CURSES_DATA(foo,$cf_data)
799 AC_MSG_RESULT($cf_result)
801 if test "$cf_result" = yes ; then
802 CF_UPPER(cf_result,have_curses_data_$cf_data)
803 AC_DEFINE_UNQUOTED($cf_result)
806 AC_MSG_CHECKING(for data $cf_data in library)
807 # BSD linkers insist on making weak linkage, but resolve at runtime.
808 AC_TRY_RUN(CF__CURSES_HEAD
810 extern char $cf_data;
813 ]CF__CURSES_DATA(foo,$cf_data)[
814 ${cf_cv_main_return:-return}(foo == 0);
818 AC_TRY_LINK(CF__CURSES_HEAD
819 [extern char $cf_data;],[
821 ]CF__CURSES_DATA(foo,$cf_data)[
822 ${cf_cv_main_return:-return}(foo == 0);
824 ],[cf_result=yes],[cf_result=no])
826 AC_MSG_RESULT($cf_result)
827 if test "$cf_result" = yes ; then
828 CF_UPPER(cf_result,decl_curses_data_$cf_data)
829 AC_DEFINE_UNQUOTED($cf_result)
830 # do not exit loop here, since we prefer system's declarations
835 dnl ---------------------------------------------------------------------------
836 dnl CF_CURSES_CHECK_TYPE version: 5 updated: 2021/01/04 19:45:09
837 dnl --------------------
838 dnl Check if curses.h defines the given type
839 AC_DEFUN([CF_CURSES_CHECK_TYPE],
841 AC_MSG_CHECKING(for type $1 in ${cf_cv_ncurses_header:-curses.h})
843 #ifndef _XOPEN_SOURCE_EXTENDED
844 #define _XOPEN_SOURCE_EXTENDED
846 #include <${cf_cv_ncurses_header:-curses.h}>],[
848 ],cf_result=yes,cf_result=no)
849 AC_MSG_RESULT($cf_result)
850 if test "$cf_result" = yes ; then
851 CF_UPPER(cf_result,have_type_$1)
852 AC_DEFINE_UNQUOTED($cf_result,1,[Define to 1 if we have type $1])
854 AC_DEFINE_UNQUOTED($1,$2,[Define to appropriate type if $1 is not declared])
857 dnl ---------------------------------------------------------------------------
858 dnl CF_CURSES_CONFIG version: 2 updated: 2006/10/29 11:06:27
860 dnl Tie together the configure-script macros for curses. It may be ncurses,
861 dnl but unless asked, we do not make a special search for ncurses. However,
862 dnl still check for the ncurses version number, for use in other macros.
863 AC_DEFUN([CF_CURSES_CONFIG],
869 dnl ---------------------------------------------------------------------------
870 dnl CF_CURSES_CPPFLAGS version: 14 updated: 2021/01/02 09:31:20
871 dnl ------------------
872 dnl Look for the curses headers.
873 AC_DEFUN([CF_CURSES_CPPFLAGS],[
875 AC_CACHE_CHECK(for extra include directories,cf_cv_curses_incdir,[
876 cf_cv_curses_incdir=no
879 if test "x$cf_cv_screen" = "xcurses_colr"
881 test -d /usr/include/curses_colr && \
882 cf_cv_curses_incdir="-I/usr/include/curses_colr"
886 if test "x$cf_cv_screen" = "xcurses_5lib"
888 test -d /usr/5lib && \
889 test -d /usr/5include && \
890 cf_cv_curses_incdir="-I/usr/5include"
895 if test "$cf_cv_curses_incdir" != no
897 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_curses_incdir)
903 dnl ---------------------------------------------------------------------------
904 dnl CF_CURSES_FUNCS version: 20 updated: 2020/12/31 20:19:42
906 dnl Curses-functions are a little complicated, since a lot of them are macros.
907 AC_DEFUN([CF_CURSES_FUNCS],
909 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
910 AC_REQUIRE([CF_XOPEN_CURSES])
911 AC_REQUIRE([CF_CURSES_TERM_H])
912 AC_REQUIRE([CF_CURSES_UNCTRL_H])
915 CF_UPPER(cf_tr_func,$cf_func)
916 AC_MSG_CHECKING(for ${cf_func})
917 CF_MSG_LOG(${cf_func})
918 AC_CACHE_VAL(cf_cv_func_$cf_func,[
919 eval cf_result='$ac_cv_func_'$cf_func
920 if test ".$cf_result" != ".no"; then
921 AC_TRY_LINK(CF__CURSES_HEAD,
924 long foo = (long)(&${cf_func});
925 fprintf(stderr, "testing linkage of $cf_func:%p\\n", (void *)foo);
926 if (foo + 1234L > 5678L)
927 ${cf_cv_main_return:-return}(foo != 0);
933 eval 'cf_cv_func_'$cf_func'="$cf_result"'
935 # use the computed/retrieved cache-value:
936 eval 'cf_result=$cf_cv_func_'$cf_func
937 AC_MSG_RESULT($cf_result)
938 if test "$cf_result" != no; then
939 AC_DEFINE_UNQUOTED(HAVE_${cf_tr_func})
943 dnl ---------------------------------------------------------------------------
944 dnl CF_CURSES_HEADER version: 6 updated: 2022/12/02 20:06:52
946 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
947 dnl variations of ncurses' installs.
949 dnl $1 = ncurses when looking for ncurses, or is empty
950 AC_DEFUN([CF_CURSES_HEADER],[
951 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
952 cf_cv_ncurses_header=none
954 ncurses.h ifelse($1,,,[$1/ncurses.h]) \
955 curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
957 AC_TRY_COMPILE([#include <${cf_header}>],
958 [initscr(); endwin()],
959 [cf_cv_ncurses_header=$cf_header; break],[])
963 if test "$cf_cv_ncurses_header" = none ; then
964 AC_MSG_ERROR(No curses header-files found)
967 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
968 AC_CHECK_HEADERS($cf_cv_ncurses_header)
970 dnl ---------------------------------------------------------------------------
971 dnl CF_CURSES_LIBS version: 45 updated: 2022/12/02 20:06:52
973 dnl Look for the curses libraries. Older curses implementations may require
974 dnl termcap/termlib to be linked as well. Call CF_CURSES_CPPFLAGS first.
975 AC_DEFUN([CF_CURSES_LIBS],[
977 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
978 AC_MSG_CHECKING(if we have identified curses libraries)
979 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
980 [initscr(); endwin()],
983 AC_MSG_RESULT($cf_result)
985 if test "$cf_result" = no ; then
988 AC_CHECK_LIB(mytinfo,tgoto,[CF_ADD_LIBS(-lmytinfo)])
991 # Looking at HPUX 10.20, the Hcurses library is the oldest (1997), cur_colr
992 # next (1998), and xcurses "newer" (2000). There is no header file for
993 # Hcurses; the subdirectory curses_colr has the headers (curses.h and
994 # term.h) for cur_colr
995 if test "x$cf_cv_screen" = "xcurses_colr"
997 AC_CHECK_LIB(cur_colr,initscr,[
998 CF_ADD_LIBS(-lcur_colr)
999 ac_cv_func_initscr=yes
1001 AC_CHECK_LIB(Hcurses,initscr,[
1002 # HP's header uses __HP_CURSES, but user claims _HP_CURSES.
1003 CF_ADD_LIBS(-lHcurses)
1004 CF_APPEND_TEXT(CPPFLAGS,-D__HP_CURSES -D_HP_CURSES)
1005 ac_cv_func_initscr=yes
1010 case `arch 2>/dev/null` in
1014 CF_ADD_LIBDIR(/lib64)
1025 if test "x$cf_cv_screen" = "xcurses_5lib"
1027 if test -d /usr/5lib ; then
1028 CF_ADD_LIBDIR(/usr/5lib)
1029 CF_ADD_LIBS(-lcurses -ltermcap)
1032 ac_cv_func_initscr=yes
1036 if test ".$ac_cv_func_initscr" != .yes ; then
1037 cf_save_LIBS="$LIBS"
1039 if test ".${cf_cv_ncurses_version:-no}" != .no
1041 cf_check_list="ncurses curses cursesX"
1043 cf_check_list="cursesX curses ncurses"
1046 # Check for library containing tgoto. Do this before curses library
1047 # because it may be needed to link the test-case for initscr.
1048 if test "x$cf_term_lib" = x
1050 AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
1051 for cf_term_lib in $cf_check_list otermcap termcap tinfo termlib unknown
1053 AC_CHECK_LIB($cf_term_lib,tgoto,[
1054 : "${cf_nculib_root:=$cf_term_lib}"
1061 # Check for library containing initscr
1062 test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
1063 if test "x$cf_curs_lib" = x
1065 for cf_curs_lib in $cf_check_list xcurses jcurses pdcurses unknown
1067 LIBS="-l$cf_curs_lib $cf_save_LIBS"
1068 if test "$cf_term_lib" = unknown || test "$cf_term_lib" = "$cf_curs_lib" ; then
1069 AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
1070 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1074 AC_MSG_RESULT($cf_result)
1075 test "$cf_result" = yes && break
1076 elif test "$cf_curs_lib" = "$cf_term_lib" ; then
1078 elif test "$cf_term_lib" != predefined ; then
1079 AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
1080 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1081 [initscr(); endwin();],
1084 LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
1085 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1090 AC_MSG_RESULT($cf_result)
1091 test "$cf_result" != error && break
1095 test "$cf_curs_lib" = unknown && AC_MSG_ERROR(no curses library found)
1100 dnl ---------------------------------------------------------------------------
1101 dnl CF_CURSES_TERM_H version: 15 updated: 2021/01/02 09:31:20
1102 dnl ----------------
1103 dnl SVr4 curses should have term.h as well (where it puts the definitions of
1104 dnl the low-level interface). This may not be true in old/broken implementations,
1105 dnl as well as in misconfigured systems (e.g., gcc configured for Solaris 2.4
1106 dnl running with Solaris 2.5.1).
1107 AC_DEFUN([CF_CURSES_TERM_H],
1109 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1111 AC_CACHE_CHECK(for term.h, cf_cv_term_header,[
1113 # If we found <ncurses/curses.h>, look for <ncurses/term.h>, but always look
1114 # for <term.h> if we do not find the variant.
1116 cf_header_list="term.h ncurses/term.h ncursesw/term.h"
1118 case "${cf_cv_ncurses_header:-curses.h}" in
1120 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`term.h
1121 cf_header_list="$cf_header_item $cf_header_list"
1125 for cf_header in $cf_header_list
1128 #include <${cf_cv_ncurses_header:-curses.h}>
1129 #include <${cf_header}>],
1130 [WINDOW *x; (void)x],
1131 [cf_cv_term_header=$cf_header
1133 [cf_cv_term_header=no])
1136 case "$cf_cv_term_header" in
1138 # If curses is ncurses, some packagers still mess it up by trying to make
1139 # us use GNU termcap. This handles the most common case.
1140 for cf_header in ncurses/term.h ncursesw/term.h
1143 #include <${cf_cv_ncurses_header:-curses.h}>
1144 #ifdef NCURSES_VERSION
1145 #include <${cf_header}>
1149 [WINDOW *x; (void)x],
1150 [cf_cv_term_header=$cf_header
1152 [cf_cv_term_header=no])
1158 case "$cf_cv_term_header" in
1160 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
1163 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
1166 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
1170 dnl ---------------------------------------------------------------------------
1171 dnl CF_CURSES_UNCTRL_H version: 8 updated: 2021/01/02 09:31:20
1172 dnl ------------------
1173 dnl Any X/Open curses implementation must have unctrl.h, but ncurses packages
1174 dnl may put it in a subdirectory (along with ncurses' other headers, of
1175 dnl course). Packages which put the headers in inconsistent locations are
1177 AC_DEFUN([CF_CURSES_UNCTRL_H],
1179 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1181 AC_CACHE_CHECK(for unctrl.h, cf_cv_unctrl_header,[
1183 # If we found <ncurses/curses.h>, look for <ncurses/unctrl.h>, but always look
1184 # for <unctrl.h> if we do not find the variant.
1186 cf_header_list="unctrl.h ncurses/unctrl.h ncursesw/unctrl.h"
1188 case "${cf_cv_ncurses_header:-curses.h}" in
1190 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`unctrl.h
1191 cf_header_list="$cf_header_item $cf_header_list"
1195 for cf_header in $cf_header_list
1198 #include <${cf_cv_ncurses_header:-curses.h}>
1199 #include <${cf_header}>],
1200 [WINDOW *x; (void)x],
1201 [cf_cv_unctrl_header=$cf_header
1203 [cf_cv_unctrl_header=no])
1207 case "$cf_cv_unctrl_header" in
1209 AC_MSG_WARN(unctrl.h header not found)
1213 case "$cf_cv_unctrl_header" in
1215 AC_DEFINE(HAVE_UNCTRL_H,1,[Define to 1 if we have unctrl.h])
1218 AC_DEFINE(HAVE_NCURSES_UNCTRL_H,1,[Define to 1 if we have ncurses/unctrl.h])
1221 AC_DEFINE(HAVE_NCURSESW_UNCTRL_H,1,[Define to 1 if we have ncursesw/unctrl.h])
1225 dnl ---------------------------------------------------------------------------
1226 dnl CF_CURSES_WACS_MAP version: 8 updated: 2021/01/04 19:45:09
1227 dnl ------------------
1228 dnl Check for likely values of wacs_map[].
1229 AC_DEFUN([CF_CURSES_WACS_MAP],
1231 AC_CACHE_CHECK(for wide alternate character set array, cf_cv_curses_wacs_map,[
1232 cf_cv_curses_wacs_map=unknown
1233 for name in wacs_map _wacs_map __wacs_map _nc_wacs _wacs_char
1236 #ifndef _XOPEN_SOURCE_EXTENDED
1237 #define _XOPEN_SOURCE_EXTENDED
1239 #include <${cf_cv_ncurses_header:-curses.h}>],
1240 [void *foo = &(${name}['k']); (void)foo],
1241 [cf_cv_curses_wacs_map=$name
1245 test "$cf_cv_curses_wacs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_WACS_ARRAY,$cf_cv_curses_wacs_map,[Define to name of (n)curses wide-character array])
1247 dnl ---------------------------------------------------------------------------
1248 dnl CF_CURSES_WACS_SYMBOLS version: 4 updated: 2021/01/04 19:45:09
1249 dnl ----------------------
1250 dnl Do a check to see if the WACS_xxx constants are defined compatibly with
1251 dnl X/Open Curses. In particular, NetBSD's implementation of the WACS_xxx
1252 dnl constants is broken since those constants do not point to cchar_t's.
1253 AC_DEFUN([CF_CURSES_WACS_SYMBOLS],
1255 AC_REQUIRE([CF_CURSES_WACS_MAP])
1257 AC_CACHE_CHECK(for wide alternate character constants, cf_cv_curses_wacs_symbols,[
1258 cf_cv_curses_wacs_symbols=no
1259 if test "$cf_cv_curses_wacs_map" != unknown
1262 #ifndef _XOPEN_SOURCE_EXTENDED
1263 #define _XOPEN_SOURCE_EXTENDED
1265 #include <${cf_cv_ncurses_header:-curses.h}>],
1266 [cchar_t *foo = WACS_PLUS;
1267 ${cf_cv_curses_wacs_map}['k'] = *WACS_PLUS; (void)foo],
1268 [cf_cv_curses_wacs_symbols=yes])
1271 #ifndef _XOPEN_SOURCE_EXTENDED
1272 #define _XOPEN_SOURCE_EXTENDED
1274 #include <${cf_cv_ncurses_header:-curses.h}>],
1275 [cchar_t *foo = WACS_PLUS; (void)foo],
1276 [cf_cv_curses_wacs_symbols=yes])
1280 test "$cf_cv_curses_wacs_symbols" != no && AC_DEFINE(CURSES_WACS_SYMBOLS,1,[Define to 1 if (n)curses supports wide-character WACS_ symbols])
1282 dnl ---------------------------------------------------------------------------
1283 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1285 dnl "dirname" is not portable, so we fake it with a shell script.
1286 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1287 dnl ---------------------------------------------------------------------------
1288 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1290 dnl You can always use "make -n" to see the actual options, but it is hard to
1291 dnl pick out/analyze warning messages when the compile-line is long.
1294 dnl ECHO_LT - symbol to control if libtool is verbose
1295 dnl ECHO_LD - symbol to prefix "cc -o" lines
1296 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1297 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
1298 dnl ECHO_CC - symbol to put before any "cc" line
1300 AC_DEFUN([CF_DISABLE_ECHO],[
1301 AC_MSG_CHECKING(if you want to see long compiling messages)
1302 CF_ARG_DISABLE(echo,
1303 [ --disable-echo do not display "compiling" commands],
1306 ECHO_LD='@echo linking [$]@;'
1307 RULE_CC='@echo compiling [$]<'
1308 SHOW_CC='@echo compiling [$]@'
1317 AC_MSG_RESULT($enableval)
1324 dnl ---------------------------------------------------------------------------
1325 dnl CF_DISABLE_LEAKS version: 9 updated: 2021/04/03 16:41:50
1326 dnl ----------------
1327 dnl Combine no-leak checks with the libraries or tools that are used for the
1329 AC_DEFUN([CF_DISABLE_LEAKS],[
1331 AC_REQUIRE([CF_WITH_DMALLOC])
1332 AC_REQUIRE([CF_WITH_DBMALLOC])
1333 AC_REQUIRE([CF_WITH_VALGRIND])
1335 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1336 AC_ARG_ENABLE(leaks,
1337 [ --disable-leaks test: free permanent memory, analyze leaks],
1338 [enable_leaks=$enableval],
1340 dnl with_no_leaks is more readable...
1341 if test "x$enable_leaks" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi
1342 AC_MSG_RESULT($with_no_leaks)
1344 if test "$enable_leaks" = no ; then
1345 AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1346 AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1349 dnl ---------------------------------------------------------------------------
1350 dnl CF_DISABLE_RPATH_HACK version: 3 updated: 2021/01/05 20:14:44
1351 dnl ---------------------
1352 dnl The rpath-hack makes it simpler to build programs, particularly with the
1353 dnl *BSD ports which may have essential libraries in unusual places. But it
1354 dnl can interfere with building an executable for the base system. Use this
1355 dnl option in that case.
1356 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1358 AC_MSG_CHECKING(if rpath-hack should be disabled)
1359 CF_ARG_DISABLE(rpath-hack,
1360 [ --disable-rpath-hack don't add rpath options for additional libraries],
1361 [enable_rpath_hack=no],
1362 [enable_rpath_hack=yes])
1363 dnl TODO - drop cf_disable_rpath_hack
1364 if test "x$enable_rpath_hack" = xno; then cf_disable_rpath_hack=yes; else cf_disable_rpath_hack=no; fi
1365 AC_MSG_RESULT($cf_disable_rpath_hack)
1367 if test "$enable_rpath_hack" = yes ; then
1371 dnl ---------------------------------------------------------------------------
1372 dnl CF_ENABLE_STRING_HACKS version: 6 updated: 2021/01/05 19:23:48
1373 dnl ----------------------
1374 dnl On a few platforms, the compiler and/or loader nags with untruthful
1375 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1376 dnl and implying that most uses of the recommended alternatives are correct.
1378 dnl Factually speaking, no one has actually counted the number of uses of these
1379 dnl functions versus the total of incorrect uses. Samples of a few thousand
1380 dnl instances are meaningless compared to the hundreds of millions of lines of
1381 dnl existing C code.
1383 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1384 dnl platforms, in implementations of varying quality. Likewise, snprintf is
1385 dnl standard - but evolved through phases, and older implementations are likely
1386 dnl to yield surprising results, as documented in manpages on various systems.
1387 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1389 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1390 AC_ARG_ENABLE(string-hacks,
1391 [ --enable-string-hacks work around bogus compiler/loader warnings],
1392 [enable_string_hacks=$enableval],
1393 [enable_string_hacks=no])
1394 AC_MSG_RESULT($enable_string_hacks)
1396 if test "x$enable_string_hacks" = "xyes"; then
1397 AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1398 AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1399 AC_CHECK_FUNC(strlcat,[
1400 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1402 AC_CHECK_LIB(bsd,strlcat,[
1404 AC_CHECK_HEADERS(bsd/string.h)
1405 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1408 AC_CHECK_FUNCS( strlcpy snprintf )
1411 dnl ---------------------------------------------------------------------------
1412 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1413 dnl ------------------
1414 dnl Configure-option to enable gcc warnings
1416 dnl $1 = extra options to add, if supported
1417 dnl $2 = option for checking attributes. By default, this is done when
1418 dnl warnings are enabled. For other values:
1419 dnl yes: always do this, e.g., to use in generated library-headers
1420 dnl no: never do this
1421 AC_DEFUN([CF_ENABLE_WARNINGS],[
1422 if test "$GCC" = yes || test "$GXX" = yes
1424 CF_FIX_WARNINGS(CFLAGS)
1425 CF_FIX_WARNINGS(CPPFLAGS)
1426 CF_FIX_WARNINGS(LDFLAGS)
1427 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1428 CF_ARG_ENABLE(warnings,
1429 [ --enable-warnings test: turn on gcc compiler warnings],
1430 [enable_warnings=yes],
1431 [enable_warnings=no])
1432 AC_MSG_RESULT($enable_warnings)
1433 if test "$enable_warnings" = "yes"
1435 ifelse($2,,[CF_GCC_ATTRIBUTES])
1438 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1441 dnl ---------------------------------------------------------------------------
1442 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1444 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
1445 dnl prefer a standard location, and use -L options only if we do not find the
1446 dnl library in the standard library location(s).
1447 dnl $1 = library name
1448 dnl $2 = library class, usually the same as library name
1450 dnl $4 = code fragment to compile/link
1451 dnl $5 = corresponding function-name
1452 dnl $6 = flag, nonnull if failure should not cause an error-exit
1454 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1455 dnl to use a -L option.
1456 AC_DEFUN([CF_FIND_LIBRARY],
1458 eval 'cf_cv_have_lib_'"$1"'=no'
1461 eval 'cf_cv_have_lib_'"$1"'=yes',[
1462 cf_save_LIBS="$LIBS"
1463 AC_MSG_CHECKING(for $5 in -l$1)
1465 AC_TRY_LINK([$3],[$4],
1467 eval 'cf_cv_have_lib_'"$1"'=yes'
1470 CF_LIBRARY_PATH(cf_search,$2)
1471 for cf_libdir in $cf_search
1473 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1474 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1475 AC_TRY_LINK([$3],[$4],
1477 eval 'cf_cv_have_lib_'"$1"'=yes'
1480 LIBS="$cf_save_LIBS"])
1484 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1486 if test "$cf_found_library" = no ; then
1487 AC_MSG_ERROR(Cannot link $1 library)
1491 dnl ---------------------------------------------------------------------------
1492 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1494 dnl Find a library (specifically the linkage used in the code fragment),
1495 dnl searching for it if it is not already in the library path.
1496 dnl See also CF_ADD_SEARCHPATH.
1498 dnl Parameters (4-on are optional):
1499 dnl $1 = headers for library entrypoint
1500 dnl $2 = code fragment for library entrypoint
1501 dnl $3 = the library name without the "-l" option or ".so" suffix.
1502 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
1503 dnl $5 = action to perform if not successful
1504 dnl $6 = module name, if not the same as the library name
1505 dnl $7 = extra libraries
1507 dnl Sets these variables:
1508 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1509 dnl $cf_cv_header_path_$3 - include-directory if needed
1510 dnl $cf_cv_library_path_$3 - library-directory if needed
1511 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1512 AC_DEFUN([CF_FIND_LINKAGE],[
1514 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1515 # will be set on completion of the AC_TRY_LINK below.
1516 cf_cv_header_path_$3=
1517 cf_cv_library_path_$3=
1519 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1521 cf_save_LIBS="$LIBS"
1523 AC_TRY_LINK([$1],[$2],[
1524 cf_cv_find_linkage_$3=yes
1525 cf_cv_header_path_$3=/usr/include
1526 cf_cv_library_path_$3=/usr/lib
1529 LIBS="-l$3 $7 $cf_save_LIBS"
1531 AC_TRY_LINK([$1],[$2],[
1532 cf_cv_find_linkage_$3=yes
1533 cf_cv_header_path_$3=/usr/include
1534 cf_cv_library_path_$3=/usr/lib
1535 cf_cv_library_file_$3="-l$3"
1537 cf_cv_find_linkage_$3=no
1538 LIBS="$cf_save_LIBS"
1540 CF_VERBOSE(find linkage for $3 library)
1541 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1543 cf_save_CPPFLAGS="$CPPFLAGS"
1544 cf_test_CPPFLAGS="$CPPFLAGS"
1546 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1547 for cf_cv_header_path_$3 in $cf_search
1549 if test -d "$cf_cv_header_path_$3" ; then
1550 CF_VERBOSE(... testing $cf_cv_header_path_$3)
1551 CPPFLAGS="$cf_save_CPPFLAGS"
1552 CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1553 AC_TRY_COMPILE([$1],[$2],[
1554 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1555 cf_cv_find_linkage_$3=maybe
1556 cf_test_CPPFLAGS="$CPPFLAGS"
1558 CPPFLAGS="$cf_save_CPPFLAGS"
1563 if test "$cf_cv_find_linkage_$3" = maybe ; then
1565 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1567 cf_save_LIBS="$LIBS"
1568 cf_save_LDFLAGS="$LDFLAGS"
1571 CPPFLAGS="$cf_test_CPPFLAGS"
1572 LIBS="-l$3 $7 $cf_save_LIBS"
1573 AC_TRY_LINK([$1],[$2],[
1574 CF_VERBOSE(... found $3 library in system)
1575 cf_cv_find_linkage_$3=yes])
1576 CPPFLAGS="$cf_save_CPPFLAGS"
1577 LIBS="$cf_save_LIBS"
1580 if test "$cf_cv_find_linkage_$3" != yes ; then
1581 CF_LIBRARY_PATH(cf_search,$3)
1582 for cf_cv_library_path_$3 in $cf_search
1584 if test -d "$cf_cv_library_path_$3" ; then
1585 CF_VERBOSE(... testing $cf_cv_library_path_$3)
1586 CPPFLAGS="$cf_test_CPPFLAGS"
1587 LIBS="-l$3 $7 $cf_save_LIBS"
1588 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1589 AC_TRY_LINK([$1],[$2],[
1590 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1591 cf_cv_find_linkage_$3=yes
1592 cf_cv_library_file_$3="-l$3"
1594 CPPFLAGS="$cf_save_CPPFLAGS"
1595 LIBS="$cf_save_LIBS"
1596 LDFLAGS="$cf_save_LDFLAGS"
1600 CPPFLAGS="$cf_save_CPPFLAGS"
1601 LDFLAGS="$cf_save_LDFLAGS"
1605 cf_cv_find_linkage_$3=no
1610 LIBS="$cf_save_LIBS"
1612 if test "$cf_cv_find_linkage_$3" = yes ; then
1614 CF_ADD_INCDIR($cf_cv_header_path_$3)
1615 CF_ADD_LIBDIR($cf_cv_library_path_$3)
1619 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1622 dnl ---------------------------------------------------------------------------
1623 dnl CF_FIX_WARNINGS version: 4 updated: 2021/12/16 18:22:31
1625 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc. Any of gcc's
1626 dnl "-Werror" flags can interfere with configure-checks. Those go into
1629 dnl $1 = variable name to repair
1630 define([CF_FIX_WARNINGS],[
1631 if test "$GCC" = yes || test "$GXX" = yes
1636 for cf_temp_scan in [$]$1
1638 case "x$cf_temp_scan" in
1640 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1643 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1646 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1650 if test "x[$]$1" != "x$cf_temp_flags"
1652 CF_VERBOSE(repairing $1: [$]$1)
1654 CF_VERBOSE(... fixed [$]$1)
1655 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1660 AC_SUBST(EXTRA_CFLAGS)
1662 dnl ---------------------------------------------------------------------------
1663 dnl CF_FUNC_CURSES_VERSION version: 9 updated: 2023/01/05 18:06:10
1664 dnl ----------------------
1665 dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
1666 dnl It's a character string "SVR4", not documented.
1667 AC_DEFUN([CF_FUNC_CURSES_VERSION],
1669 AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
1671 $ac_includes_default
1673 #include <${cf_cv_ncurses_header:-curses.h}>
1678 sprintf(temp, "%.999s\\n", curses_version());
1679 ${cf_cv_main_return:-return}(0);
1681 ,[cf_cv_func_curses_version=yes]
1682 ,[cf_cv_func_curses_version=no]
1683 ,[cf_cv_func_curses_version=unknown])
1685 test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION,1,[Define to 1 if we have curses_version function])
1687 dnl ---------------------------------------------------------------------------
1688 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
1690 dnl Check for openpty() function, along with <pty.h> header. It may need the
1691 dnl "util" library as well.
1692 AC_DEFUN([CF_FUNC_OPENPTY],
1694 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1695 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1696 cf_save_LIBS="$LIBS"
1697 test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
1698 for cf_header in pty.h libutil.h util.h
1701 #include <$cf_header>
1703 int x = openpty((int *)0, (int *)0, (char *)0,
1704 (struct termios *)0, (struct winsize *)0);
1706 cf_cv_func_openpty=$cf_header
1709 cf_cv_func_openpty=no
1712 LIBS="$cf_save_LIBS"
1715 dnl ---------------------------------------------------------------------------
1716 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1717 dnl -----------------
1718 dnl Test for availability of useful gcc __attribute__ directives to quiet
1719 dnl compiler warnings. Though useful, not all are supported -- and contrary
1720 dnl to documentation, unrecognized directives cause older compilers to barf.
1721 AC_DEFUN([CF_GCC_ATTRIBUTES],
1722 [AC_REQUIRE([AC_PROG_FGREP])dnl
1723 AC_REQUIRE([CF_C11_NORETURN])dnl
1725 if test "$GCC" = yes || test "$GXX" = yes
1727 cat > conftest.i <<EOF
1729 #define GCC_PRINTF 0
1734 #ifndef GCC_NORETURN
1735 #define GCC_NORETURN /* nothing */
1738 #define GCC_UNUSED /* nothing */
1741 if test "$GCC" = yes
1743 AC_CHECKING([for $CC __attribute__ directives])
1744 cat > "conftest.$ac_ext" <<EOF
1745 #line __oline__ "${as_me:-configure}"
1747 #include "confdefs.h"
1748 #include "conftest.h"
1749 #include "conftest.i"
1751 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1753 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1756 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1758 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1760 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1761 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1762 extern GCC_NORETURN void foo(void);
1763 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1765 cf_printf_attribute=no
1766 cf_scanf_attribute=no
1767 for cf_attribute in scanf printf unused noreturn
1769 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1770 cf_directive="__attribute__(($cf_attribute))"
1771 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1773 case "$cf_attribute" in
1775 cf_printf_attribute=yes
1776 cat >conftest.h <<EOF
1777 #define GCC_$cf_ATTRIBUTE 1
1781 cf_scanf_attribute=yes
1782 cat >conftest.h <<EOF
1783 #define GCC_$cf_ATTRIBUTE 1
1787 cat >conftest.h <<EOF
1788 #define GCC_$cf_ATTRIBUTE $cf_directive
1793 if AC_TRY_EVAL(ac_compile); then
1794 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1795 cat conftest.h >>confdefs.h
1796 case "$cf_attribute" in
1798 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1801 cf_value='/* nothing */'
1802 if test "$cf_printf_attribute" != no ; then
1803 cf_value='__attribute__((format(printf,fmt,var)))'
1804 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1806 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1809 cf_value='/* nothing */'
1810 if test "$cf_scanf_attribute" != no ; then
1811 cf_value='__attribute__((format(scanf,fmt,var)))'
1812 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1814 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1817 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1823 ${FGREP-fgrep} define conftest.i >>confdefs.h
1828 dnl ---------------------------------------------------------------------------
1829 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1831 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1832 dnl compatible), attempt to determine if icc/clang is actually used.
1833 AC_DEFUN([CF_GCC_VERSION],[
1834 AC_REQUIRE([AC_PROG_CC])
1836 if test "$GCC" = yes ; then
1837 AC_MSG_CHECKING(version of $CC)
1838 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1839 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1840 AC_MSG_RESULT($GCC_VERSION)
1842 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1843 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1845 dnl ---------------------------------------------------------------------------
1846 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1848 dnl Check if the compiler supports useful warning options. There's a few that
1849 dnl we don't use, simply because they're too noisy:
1851 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1852 dnl -Winline (usually not worthwhile)
1853 dnl -Wredundant-decls (system headers make this too noisy)
1854 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1855 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1856 dnl is enabled for ncurses using "--enable-const".
1860 dnl $1 is an optional list of gcc warning flags that a particular
1861 dnl application might want to use, e.g., "no-unused" for
1864 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1866 AC_DEFUN([CF_GCC_WARNINGS],
1868 AC_REQUIRE([CF_GCC_VERSION])
1869 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1870 cat > "conftest.$ac_ext" <<EOF
1871 #line __oline__ "${as_me:-configure}"
1872 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1874 if test "$INTEL_COMPILER" = yes
1876 # The "-wdXXX" options suppress warnings:
1877 # remark #1419: external declaration in primary source file
1878 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1879 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1880 # remark #193: zero used for undefined preprocessing identifier
1881 # remark #593: variable "curs_sb_left_arrow" was set but never used
1882 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1883 # remark #869: parameter "tw" was never referenced
1884 # remark #981: operands are evaluated in unspecified order
1885 # warning #279: controlling expression is constant
1887 AC_CHECKING([for $CC warning options])
1888 cf_save_CFLAGS="$CFLAGS"
1889 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1901 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1902 if AC_TRY_EVAL(ac_compile); then
1903 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1904 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1907 CFLAGS="$cf_save_CFLAGS"
1908 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1910 AC_CHECKING([for $CC warning options])
1911 cf_save_CFLAGS="$CFLAGS"
1913 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1914 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1915 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1916 for cf_opt in W Wall \
1917 Wbad-function-cast \
1920 Wdeclaration-after-statement \
1923 Wmissing-declarations \
1924 Wmissing-prototypes \
1928 Wstrict-prototypes \
1929 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1931 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1932 if AC_TRY_EVAL(ac_compile); then
1933 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1936 case "$GCC_VERSION" in
1938 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1943 case "$GCC_VERSION" in
1945 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1950 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1953 CFLAGS="$cf_save_CFLAGS"
1957 AC_SUBST(EXTRA_CFLAGS)
1959 dnl ---------------------------------------------------------------------------
1960 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
1961 dnl ----------------
1962 dnl Check for getopt's variables which are commonly defined in stdlib.h,
1963 dnl unistd.h or (nonstandard) in getopt.h
1964 AC_DEFUN([CF_GETOPT_HEADER],
1966 AC_HAVE_HEADERS(unistd.h getopt.h)
1967 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
1968 cf_cv_getopt_header=none
1969 for cf_header in stdio.h stdlib.h unistd.h getopt.h
1972 #include <$cf_header>],
1973 [int x = optind; char *y = optarg; (void)x; (void)y],
1974 [cf_cv_getopt_header=$cf_header
1978 if test "$cf_cv_getopt_header" != none ; then
1979 AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
1981 if test "$cf_cv_getopt_header" = getopt.h ; then
1982 AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
1985 dnl ---------------------------------------------------------------------------
1986 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1988 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1989 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1990 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1991 dnl since it is interwoven with GNU extensions.
1993 dnl Well, yes we could work around it...
1996 dnl $1 is the nominal value for _XOPEN_SOURCE
1997 AC_DEFUN([CF_GNU_SOURCE],
1999 cf_gnu_xopen_source=ifelse($1,,500,$1)
2001 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
2002 AC_TRY_COMPILE([#include <sys/types.h>],[
2003 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
2005 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
2008 # error not GNU C library
2010 [cf_cv_gnu_library=yes],
2011 [cf_cv_gnu_library=no])
2014 if test x$cf_cv_gnu_library = xyes; then
2016 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
2017 # was changed to help a little. newlib incorporated the change about 4
2019 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
2021 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2022 AC_TRY_COMPILE([#include <sys/types.h>],[
2023 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
2025 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
2028 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
2030 [cf_cv_gnu_library_219=yes],
2031 [cf_cv_gnu_library_219=no])
2035 if test "x$cf_cv_gnu_library_219" = xyes; then
2037 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
2038 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2041 #include <sys/types.h>
2043 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2046 # error GNU C library is too old
2048 [cf_cv_gnu_dftsrc_219=yes],
2049 [cf_cv_gnu_dftsrc_219=no])
2051 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2053 cf_cv_gnu_dftsrc_219=maybe
2056 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2058 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2059 AC_TRY_COMPILE([#include <sys/types.h>],[
2060 #ifndef _XOPEN_SOURCE
2061 #error expected _XOPEN_SOURCE to be defined
2063 [cf_cv_gnu_source=no],
2064 [cf_save="$CPPFLAGS"
2065 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2066 AC_TRY_COMPILE([#include <sys/types.h>],[
2067 #ifdef _XOPEN_SOURCE
2068 #error expected _XOPEN_SOURCE to be undefined
2070 [cf_cv_gnu_source=no],
2071 [cf_cv_gnu_source=yes])
2076 if test "$cf_cv_gnu_source" = yes
2078 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2079 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2080 AC_TRY_COMPILE([#include <sys/types.h>],[
2081 #ifdef _DEFAULT_SOURCE
2082 #error expected _DEFAULT_SOURCE to be undefined
2084 [cf_cv_default_source=no],
2085 [cf_cv_default_source=yes])
2087 if test "$cf_cv_default_source" = yes
2089 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2096 dnl ---------------------------------------------------------------------------
2097 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2099 dnl Construct a search-list of directories for a nonstandard header-file
2102 dnl $1 = the variable to return as result
2103 dnl $2 = the package name
2104 AC_DEFUN([CF_HEADER_PATH],
2108 # collect the current set of include-directories from compiler flags
2109 cf_header_path_list=""
2110 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2111 for cf_header_path in $CPPFLAGS $CFLAGS
2113 case "$cf_header_path" in
2115 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2116 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2117 cf_header_path_list="$cf_header_path_list [$]$1"
2123 # add the variations for the package we are looking for
2124 CF_SUBDIR_PATH($1,$2,include)
2126 test "$includedir" != NONE && \
2127 test "$includedir" != "/usr/include" && \
2128 test -d "$includedir" && {
2129 test -d "$includedir" && $1="[$]$1 $includedir"
2130 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2133 test "$oldincludedir" != NONE && \
2134 test "$oldincludedir" != "/usr/include" && \
2135 test -d "$oldincludedir" && {
2136 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2137 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2140 $1="[$]$1 $cf_header_path_list"
2142 dnl ---------------------------------------------------------------------------
2143 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2145 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2146 AC_DEFUN([CF_HELP_MESSAGE],
2147 [CF_ACVERSION_CHECK(2.53,[],[
2148 AC_DIVERT_HELP($1)])dnl
2150 dnl ---------------------------------------------------------------------------
2151 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
2152 dnl -----------------
2153 dnl If we do not have a given script, look for it in the parent directory.
2154 AC_DEFUN([CF_INHERIT_SCRIPT],
2156 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
2158 dnl ---------------------------------------------------------------------------
2159 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2161 dnl prompt for/fill-in useful install-program options
2162 AC_DEFUN([CF_INSTALL_OPTS],
2168 dnl ---------------------------------------------------------------------------
2169 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2170 dnl ----------------
2171 dnl Almost all "install" programs default to the current user's ownership.
2172 dnl Almost - MINIX is an exception.
2173 AC_DEFUN([CF_INSTALL_OPT_O],
2175 AC_MSG_CHECKING(if install needs to be told about ownership)
2176 case `$ac_config_guess` in
2185 AC_MSG_RESULT($with_install_o)
2186 if test "x$with_install_o" = xyes
2188 INSTALL_OPT_O="`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`"
2193 AC_SUBST(INSTALL_OPT_O)
2195 dnl ---------------------------------------------------------------------------
2196 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2197 dnl ----------------
2198 dnl Some install-programs accept a "-p" option to preserve file modification
2199 dnl timestamps. That can be useful as an install option, as well as a way to
2200 dnl avoid the need for ranlib after copying a static archive.
2201 AC_DEFUN([CF_INSTALL_OPT_P],
2203 : "${INSTALL:=install}"
2204 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2209 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2211 if test -f conftest.out/conftest.in
2213 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2214 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2215 if test -s conftest.err
2230 dnl ---------------------------------------------------------------------------
2231 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2232 dnl ----------------
2233 dnl By default, we should strip executables which are installed, but leave the
2234 dnl ability to suppress that for unit-testing.
2235 AC_DEFUN([CF_INSTALL_OPT_S],
2237 AC_MSG_CHECKING(if you want to install stripped executables)
2238 CF_ARG_DISABLE(stripping,
2239 [ --disable-stripping do not strip (debug info) installed executables],
2240 [enable_stripping=no],
2241 [enable_stripping=yes])
2242 AC_MSG_RESULT($enable_stripping)
2244 if test "$enable_stripping" = yes
2250 AC_SUBST(INSTALL_OPT_S)
2252 dnl ---------------------------------------------------------------------------
2253 dnl CF_INTEL_COMPILER version: 8 updated: 2021/01/01 16:53:59
2254 dnl -----------------
2255 dnl Check if the given compiler is really the Intel compiler for Linux. It
2256 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2257 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2259 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2260 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2261 dnl the wrappers for gcc and g++ warnings.
2263 dnl $1 = GCC (default) or GXX
2264 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2265 dnl $3 = CFLAGS (default) or CXXFLAGS
2266 AC_DEFUN([CF_INTEL_COMPILER],[
2267 AC_REQUIRE([AC_CANONICAL_HOST])
2268 ifelse([$2],,INTEL_COMPILER,[$2])=no
2270 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2273 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2274 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2275 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2277 #ifdef __INTEL_COMPILER
2281 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2282 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2284 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2285 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2290 dnl ---------------------------------------------------------------------------
2291 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2293 dnl For the given system and compiler, find the compiler flags to pass to the
2294 dnl loader to use the "rpath" feature.
2295 AC_DEFUN([CF_LD_RPATH_OPT],
2297 AC_REQUIRE([CF_CHECK_CACHE])
2300 if test "x$cf_cv_enable_rpath" != xno
2302 AC_MSG_CHECKING(for an rpath option)
2303 case "$cf_cv_system_name" in
2305 if test "$GCC" = yes; then
2306 LD_RPATH_OPT="-Wl,-rpath,"
2308 LD_RPATH_OPT="-rpath "
2311 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2312 LD_RPATH_OPT="-Wl,-rpath,"
2314 (openbsd[[2-9]].*|mirbsd*)
2315 LD_RPATH_OPT="-Wl,-rpath,"
2318 LD_RPATH_OPT="-rpath "
2321 LD_RPATH_OPT="-Wl,-rpath,"
2324 LD_RPATH_OPT="-rpath "
2332 AC_MSG_RESULT($LD_RPATH_OPT)
2334 case "x$LD_RPATH_OPT" in
2336 AC_MSG_CHECKING(if we need a space after rpath option)
2337 cf_save_LIBS="$LIBS"
2338 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2339 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2340 LIBS="$cf_save_LIBS"
2341 AC_MSG_RESULT($cf_rpath_space)
2342 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2347 dnl ---------------------------------------------------------------------------
2348 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2350 dnl Construct a search-list of directories for a nonstandard library-file
2353 dnl $1 = the variable to return as result
2354 dnl $2 = the package name
2355 AC_DEFUN([CF_LIBRARY_PATH],
2358 cf_library_path_list=""
2359 if test -n "${LDFLAGS}${LIBS}" ; then
2360 for cf_library_path in $LDFLAGS $LIBS
2362 case "$cf_library_path" in
2364 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2365 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2366 cf_library_path_list="$cf_library_path_list [$]$1"
2372 CF_SUBDIR_PATH($1,$2,lib)
2374 $1="$cf_library_path_list [$]$1"
2376 dnl ---------------------------------------------------------------------------
2377 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2379 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2380 dnl acts as a placeholder.
2382 dnl The ".PHONY" feature was proposed in 2011 here
2383 dnl https://www.austingroupbugs.net/view.php?id=523
2384 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2386 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2387 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2389 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2390 dnl date unspecified).
2392 dnl + It was adopted in NetBSD make in June 1995.
2394 dnl + The other BSD make programs are derived from the NetBSD make (and for
2395 dnl that reason are not actually different "implementations").
2397 dnl + Some features of NetBSD make were actually adapted from pmake, which
2398 dnl began as a modified GNU make starting in 1993.
2400 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2401 dnl GNU make extension, but is less well known than the BSD make.
2402 AC_DEFUN([CF_MAKE_PHONY],[
2403 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2406 mkdir conftest || exit 1
2408 cat >makefile <<'CF_EOF'
2412 @echo "** making [$]@ [$](DATA)"
2414 @echo "** making [$]@ [$](DATA)"
2416 @echo "** making [$]@ [$](DATA)"
2417 echo [$](DATA) > [$]@
2419 @echo "** making [$]@ [$](DATA)"
2420 echo [$](DATA) > [$]@
2422 for cf_data in 1 2 3
2424 ${MAKE:-make} always DATA=$cf_data
2425 ${MAKE:-make} once DATA=$cf_data
2426 ${MAKE:-make} -t always once
2427 if test -f always ; then
2428 echo "no (case 1)" > ../conftest.tmp
2429 elif test ! -f always.out ; then
2430 echo "no (case 2)" > ../conftest.tmp
2431 elif test ! -f once.out ; then
2432 echo "no (case 3)" > ../conftest.tmp
2433 elif ! cmp -s always.out once.out ; then
2434 echo "no (case 4)" > ../conftest.tmp
2435 diff always.out once.out
2437 cf_check="`cat always.out`"
2438 if test "x$cf_check" != "x$cf_data" ; then
2439 echo "no (case 5)" > ../conftest.tmp
2441 echo yes > ../conftest.tmp
2449 cf_cv_make_PHONY="`cat conftest.tmp`"
2454 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2455 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2456 AC_SUBST(MAKE_NO_PHONY)
2457 AC_SUBST(MAKE_PHONY)
2459 dnl ---------------------------------------------------------------------------
2460 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2462 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2463 dnl a monocase filesystem.
2464 AC_DEFUN([CF_MAKE_TAGS],[
2465 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2467 AC_CHECK_PROGS(CTAGS, exctags ctags)
2468 AC_CHECK_PROGS(ETAGS, exetags etags)
2470 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2472 if test "$cf_cv_mixedcase" = yes ; then
2473 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2478 if test "$MAKE_UPPER_TAGS" = yes ; then
2484 if test "$MAKE_LOWER_TAGS" = yes ; then
2493 AC_SUBST(MAKE_UPPER_TAGS)
2494 AC_SUBST(MAKE_LOWER_TAGS)
2496 dnl ---------------------------------------------------------------------------
2497 dnl CF_MATH_LIB version: 11 updated: 2022/07/27 19:01:48
2499 dnl Checks for libraries. At least one UNIX system, Apple Macintosh
2500 dnl Rhapsody 5.5, does not have -lm. We cannot use the simpler
2501 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
2502 AC_DEFUN([CF_MATH_LIB],
2504 AC_CACHE_CHECK(if -lm needed for math functions,
2511 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2512 [cf_cv_need_libm=no],
2513 [cf_cv_need_libm=yes])])
2515 if test "$cf_cv_need_libm" = yes
2518 cf_save_LIBS="$LIBS"
2520 AC_CACHE_CHECK(if -lm is available for math functions,
2527 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2528 [cf_cv_have_libm=yes],
2529 [cf_cv_have_libm=no])])
2530 LIBS="$cf_save_LIBS"
2532 if test "$cf_cv_have_libm" = yes
2534 ifelse($1,,[CF_ADD_LIB(m)],[$1=-lm])
2540 if test "$cf_cv_have_libm" = yes
2542 AC_DEFINE(HAVE_MATH_FUNCS,1,[Define to 1 if math functions are available])
2545 dnl ---------------------------------------------------------------------------
2546 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2547 dnl ----------------------
2548 dnl Check if the file-system supports mixed-case filenames. If we're able to
2549 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2550 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2552 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2553 if test "$cross_compiling" = yes ; then
2554 case "$target_alias" in
2555 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2563 rm -f conftest CONFTEST
2565 if test -f CONFTEST ; then
2570 rm -f conftest CONFTEST
2573 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2575 dnl ---------------------------------------------------------------------------
2576 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2578 dnl Write a debug message to config.log, along with the line number in the
2579 dnl configure script.
2580 AC_DEFUN([CF_MSG_LOG],[
2581 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2583 dnl ---------------------------------------------------------------------------
2584 dnl CF_NCURSES_CC_CHECK version: 5 updated: 2020/12/31 20:19:42
2585 dnl -------------------
2586 dnl Check if we can compile with ncurses' header file
2587 dnl $1 is the cache variable to set
2588 dnl $2 is the header-file to include
2589 dnl $3 is the root name (ncurses or ncursesw)
2590 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2592 ]ifelse($3,ncursesw,[
2593 #define _XOPEN_SOURCE_EXTENDED
2594 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2595 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2598 #ifdef NCURSES_VERSION
2599 ]ifelse($3,ncursesw,[
2604 printf("%s\\n", NCURSES_VERSION);
2616 dnl ---------------------------------------------------------------------------
2617 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2618 dnl -----------------
2619 dnl Tie together the configure-script macros for ncurses, preferring these in
2621 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2622 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2623 dnl c) just plain libraries
2625 dnl $1 is the root library name (default: "ncurses")
2626 AC_DEFUN([CF_NCURSES_CONFIG],[
2627 AC_REQUIRE([CF_PKG_CONFIG])
2628 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2629 cf_have_ncuconfig=no
2631 if test "x${PKG_CONFIG:=none}" != xnone; then
2632 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2633 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2636 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2637 cf_have_ncuconfig=unknown
2639 cf_save_CFLAGS="$CFLAGS"
2640 cf_save_CPPFLAGS="$CPPFLAGS"
2641 cf_save_LIBS="$LIBS"
2643 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2644 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2646 # while -W for passing linker flags is prevalent, it is not "standard".
2647 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2648 # incompatible _and_ non-standard -W option which gives an error. Work
2649 # around that pitfall.
2650 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2652 CF_ADD_CFLAGS($cf_pkg_cflags)
2653 CF_ADD_LIBS($cf_pkg_libs)
2655 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2656 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2657 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2659 { const char *xx = curses_version(); return (xx == 0); }],
2660 [cf_test_ncuconfig=yes],
2661 [cf_test_ncuconfig=no],
2662 [cf_test_ncuconfig=maybe])],
2663 [cf_test_ncuconfig=no])
2665 CFLAGS="$cf_save_CFLAGS"
2666 CPPFLAGS="$cf_save_CPPFLAGS"
2667 LIBS="$cf_save_LIBS"
2669 if test "x$cf_test_ncuconfig" != xyes; then
2670 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2671 cf_pkg_cflags="$cf_temp"
2672 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2673 cf_pkg_libs="$cf_temp"
2678 CF_APPEND_CFLAGS($cf_pkg_cflags)
2679 CF_ADD_LIBS($cf_pkg_libs)
2681 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2682 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2683 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2685 { const char *xx = curses_version(); return (xx == 0); }],
2686 [cf_have_ncuconfig=yes],
2687 [cf_have_ncuconfig=no],
2688 [cf_have_ncuconfig=maybe])],
2689 [cf_have_ncuconfig=no])
2690 AC_MSG_RESULT($cf_have_ncuconfig)
2691 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2692 if test "$cf_have_ncuconfig" != "yes"
2694 CPPFLAGS="$cf_save_CPPFLAGS"
2695 LIBS="$cf_save_LIBS"
2696 NCURSES_CONFIG_PKG=none
2698 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2699 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2705 NCURSES_CONFIG_PKG=none
2708 NCURSES_CONFIG_PKG=none
2711 if test "x$cf_have_ncuconfig" = "xno"; then
2712 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2714 CF_ACVERSION_CHECK(2.52,
2715 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2716 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2718 if test "$NCURSES_CONFIG" != none ; then
2720 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
2721 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2723 # even with config script, some packages use no-override for curses.h
2724 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2726 dnl like CF_NCURSES_CPPFLAGS
2727 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2729 dnl like CF_NCURSES_LIBS
2730 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2731 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2733 dnl like CF_NCURSES_VERSION
2734 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2738 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2739 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2746 dnl ---------------------------------------------------------------------------
2747 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2748 dnl -------------------
2749 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2750 dnl the CPPFLAGS variable so we can include its header.
2752 dnl The header files may be installed as either curses.h, or ncurses.h (would
2753 dnl be obsolete, except that some packagers prefer this name to distinguish it
2754 dnl from a "native" curses implementation). If not installed for overwrite,
2755 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2756 dnl /usr/include/ncurses), but someone may have installed overwriting the
2757 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2758 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2761 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2762 dnl is already in the include-path, don't even bother with this, since we cannot
2763 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2765 dnl The optional parameter gives the root name of the library, in case it is
2766 dnl not installed as the default curses library. That is how the
2767 dnl wide-character version of ncurses is installed.
2768 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2769 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2771 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2772 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2774 test -n "$cf_cv_curses_dir" && \
2775 test "$cf_cv_curses_dir" != "no" && { \
2776 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2779 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2780 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2781 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2782 for cf_header in $cf_header_list
2784 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2785 test "$cf_cv_ncurses_h" != no && break
2792 # some applications need this, but should check for NCURSES_VERSION
2793 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2797 dnl ---------------------------------------------------------------------------
2798 dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
2799 dnl --------------------
2800 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
2801 dnl may provide these functions. Define the symbol if it is not defined, and
2803 AC_DEFUN([CF_NCURSES_EXT_FUNCS],
2805 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
2807 #include <${cf_cv_ncurses_header:-curses.h}>],
2809 int x = NCURSES_EXT_FUNCS
2810 ],[cf_cv_ncurses_ext_funcs=defined],[
2812 #include <${cf_cv_ncurses_header:-curses.h}>],
2814 (void) assume_default_colors (0, 0);
2815 (void) curses_version ();
2816 (void) define_key (0, 0);
2817 (void) is_term_resized (0, 0);
2818 (void) key_defined (0);
2819 (void) keybound (0, 0);
2820 (void) keyok (0, 0);
2821 (void) resize_term (0, 0);
2822 (void) resizeterm (0, 0);
2823 (void) use_default_colors ();
2824 (void) use_extended_names (0);
2825 (void) wresize (0, 0, 0);],
2826 [cf_cv_ncurses_ext_funcs=yes],
2827 [cf_cv_ncurses_ext_funcs=no])
2830 test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
2832 dnl ---------------------------------------------------------------------------
2833 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2834 dnl -----------------
2835 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2836 dnl variations of ncurses' installs.
2838 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2839 AC_DEFUN([CF_NCURSES_HEADER],[
2841 if test "$cf_cv_ncurses_h" != no ; then
2842 cf_cv_ncurses_header=$cf_cv_ncurses_h
2845 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2846 test -n "$verbose" && echo
2847 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2848 test -n "$verbose" && echo "search path $cf_search"
2849 cf_save2_CPPFLAGS="$CPPFLAGS"
2850 for cf_incdir in $cf_search
2852 CF_ADD_INCDIR($cf_incdir)
2857 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2858 if test "$cf_cv_ncurses_h2" != no ; then
2859 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2860 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2863 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2865 CPPFLAGS="$cf_save2_CPPFLAGS"
2866 test "$cf_cv_ncurses_h2" != no && break
2868 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2871 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2872 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
2873 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
2874 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
2876 CF_ADD_INCDIR($cf_1st_incdir)
2880 # Set definitions to allow ifdef'ing for ncurses.h
2882 case "$cf_cv_ncurses_header" in
2884 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2888 case "$cf_cv_ncurses_header" in
2889 (ncurses/curses.h|ncurses/ncurses.h)
2890 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2892 (ncursesw/curses.h|ncursesw/ncurses.h)
2893 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2898 dnl ---------------------------------------------------------------------------
2899 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
2901 dnl Look for the ncurses library. This is a little complicated on Linux,
2902 dnl because it may be linked with the gpm (general purpose mouse) library.
2903 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2904 dnl unusable with ncurses. However, we don't want to link with gpm unless
2905 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2906 dnl and the linker will record a dependency.
2908 dnl The optional parameter gives the root name of the library, in case it is
2909 dnl not installed as the default curses library. That is how the
2910 dnl wide-character version of ncurses is installed.
2911 AC_DEFUN([CF_NCURSES_LIBS],
2912 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2914 cf_nculib_root=ifelse($1,,ncurses,$1)
2915 # This works, except for the special case where we find gpm, but
2916 # ncurses is in a nonstandard location via $LIBS, and we really want
2919 cf_ncurses_SAVE="$LIBS"
2920 AC_CHECK_LIB(gpm,Gpm_Open,
2921 [AC_CHECK_LIB(gpm,initscr,
2922 [LIBS="$cf_ncurses_SAVE"],
2923 [cf_ncurses_LIBS="-lgpm"])])
2927 # This is only necessary if you are linking against an obsolete
2928 # version of ncurses (but it should do no harm, since it is static).
2929 if test "$cf_nculib_root" = ncurses ; then
2930 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2935 CF_ADD_LIBS($cf_ncurses_LIBS)
2937 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
2939 CF_ADD_LIBS(-l$cf_nculib_root)
2941 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2942 [#include <${cf_cv_ncurses_header:-curses.h}>],
2947 if test -n "$cf_ncurses_LIBS" ; then
2948 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2949 cf_ncurses_SAVE="$LIBS"
2950 for p in $cf_ncurses_LIBS ; do
2951 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
2952 if test "$q" != "$LIBS" ; then
2956 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2957 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2958 [AC_MSG_RESULT(yes)],
2960 LIBS="$cf_ncurses_SAVE"])
2963 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2964 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2966 dnl ---------------------------------------------------------------------------
2967 dnl CF_NCURSES_PTHREADS version: 2 updated: 2016/04/22 05:07:41
2968 dnl -------------------
2969 dnl Use this followup check to ensure that we link with pthreads if ncurses
2971 AC_DEFUN([CF_NCURSES_PTHREADS],[
2972 : ${cf_nculib_root:=ifelse($1,,ncurses,$1)}
2973 AC_CHECK_LIB($cf_nculib_root,_nc_init_pthreads,
2974 cf_cv_ncurses_pthreads=yes,
2975 cf_cv_ncurses_pthreads=no)
2976 if test "$cf_cv_ncurses_pthreads" = yes
2978 CF_ADD_LIBS(-lpthread)
2981 dnl ---------------------------------------------------------------------------
2982 dnl CF_NCURSES_VERSION version: 17 updated: 2023/01/05 18:54:02
2983 dnl ------------------
2984 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2985 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
2986 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2987 AC_DEFUN([CF_NCURSES_VERSION],
2989 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2990 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2991 cf_cv_ncurses_version=no
2993 rm -f "$cf_tempfile"
2995 $ac_includes_default
2997 #include <${cf_cv_ncurses_header:-curses.h}>
3001 FILE *fp = fopen("$cf_tempfile", "w");
3002 #ifdef NCURSES_VERSION
3003 # ifdef NCURSES_VERSION_PATCH
3004 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3006 fprintf(fp, "%s\\n", NCURSES_VERSION);
3010 fprintf(fp, "old\\n");
3015 ${cf_cv_main_return:-return}(0);
3017 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3019 # This will not work if the preprocessor splits the line after the
3020 # Autoconf token. The 'unproto' program does that.
3021 cat > "conftest.$ac_ext" <<EOF
3022 #include <${cf_cv_ncurses_header:-curses.h}>
3024 #ifdef NCURSES_VERSION
3025 Autoconf NCURSES_VERSION
3033 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3035 if test -f conftest.out ; then
3036 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3037 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3041 rm -f "$cf_tempfile"
3043 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3045 dnl ---------------------------------------------------------------------------
3046 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
3047 dnl ----------------------
3048 dnl Check for ncurses "wrap-prefix" used for public variables which have been
3049 dnl wrapped with a function to help with concurrency control.
3050 AC_DEFUN([CF_NCURSES_WRAP_PREFIX],
3052 AC_MSG_CHECKING(for ncurses wrap-prefix)
3053 AC_ARG_WITH(ncurses-wrap-prefix,
3054 [ --with-ncurses-wrap-prefix naming-prefix for ncurses wrapped-variables],
3055 [NCURSES_WRAP_PREFIX=$withval],
3056 [NCURSES_WRAP_PREFIX=_nc_])
3057 AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
3059 AC_SUBST(NCURSES_WRAP_PREFIX)
3061 dnl ---------------------------------------------------------------------------
3062 dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
3063 dnl ----------------
3064 dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
3065 dnl Some workarounds are needed in client programs to allow them to compile.
3066 AC_DEFUN([CF_NETBSD_FORM_H],[
3067 AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
3069 #include <${cf_cv_ncurses_header:-curses.h}>
3073 int y = current_field(form)->cursor_ypos;
3074 int x = current_field(form)->cursor_xpos;
3075 ],[cf_cv_netbsd_form_h=yes
3076 ],[cf_cv_netbsd_form_h=no])
3079 test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
3081 dnl ---------------------------------------------------------------------------
3082 dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
3083 dnl ----------------
3084 dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
3085 dnl Some workarounds are needed in client programs to allow them to compile.
3086 AC_DEFUN([CF_NETBSD_MENU_H],[
3087 AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
3089 #include <${cf_cv_ncurses_header:-curses.h}>
3093 int y = menu->max_item_width;
3094 ],[cf_cv_netbsd_menu_h=yes
3095 ],[cf_cv_netbsd_menu_h=no])
3098 test "$cf_cv_netbsd_menu_h" = yes && AC_DEFINE(HAVE_NETBSD_MENU_H,1,[Define to 1 if we appear to be using NetBSD menu.h])
3100 dnl ---------------------------------------------------------------------------
3101 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
3102 dnl ------------------
3103 dnl see CF_WITH_NO_LEAKS
3105 dnl $1 = option/name
3107 dnl $3 = symbol to define if the option is set
3108 dnl $4 = additional actions to take if the option is set
3109 AC_DEFUN([CF_NO_LEAKS_OPTION],[
3110 AC_MSG_CHECKING(if you want to use $1 for testing)
3113 [case "x$withval" in
3116 : "${with_cflags:=-g}"
3117 : "${enable_leaks:=no}"
3119 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
3125 AC_MSG_RESULT(${with_$1:-no})
3127 case ".$with_cflags" in
3139 dnl ---------------------------------------------------------------------------
3140 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3142 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3143 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3144 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3145 dnl delayed evaluation of those symbols.
3146 AC_DEFUN([CF_PATH_SYNTAX],[
3147 if test "x$prefix" != xNONE; then
3148 cf_path_syntax="$prefix"
3150 cf_path_syntax="$ac_default_prefix"
3154 (.\[$]\(*\)*|.\'*\'*)
3158 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3160 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3164 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3169 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3172 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3176 dnl ---------------------------------------------------------------------------
3177 dnl CF_PDCURSES_X11 version: 15 updated: 2021/01/02 09:31:20
3179 dnl Configure for PDCurses' X11 library
3180 AC_DEFUN([CF_PDCURSES_X11],[
3181 AC_REQUIRE([CF_X_ATHENA])
3183 CF_ACVERSION_CHECK(2.52,
3184 [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
3185 [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
3187 if test "$XCURSES_CONFIG" != none ; then
3189 CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
3190 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
3192 cf_cv_lib_XCurses=yes
3196 LDFLAGS="$LDFLAGS $X_LIBS"
3197 CF_CHECK_CFLAGS($X_CFLAGS)
3198 AC_CHECK_LIB(X11,XOpenDisplay,
3199 [CF_ADD_LIBS(-lX11)],,
3200 [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
3201 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
3202 CF_ADD_LIBS(-lXCurses)
3204 #include <xcurses.h>
3205 char *XCursesProgramName = "test";
3207 [cf_cv_lib_XCurses=yes],
3208 [cf_cv_lib_XCurses=no])
3213 if test "$cf_cv_lib_XCurses" = yes ; then
3214 AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
3215 AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
3216 AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
3218 AC_MSG_ERROR(Cannot link with XCurses)
3221 dnl ---------------------------------------------------------------------------
3222 dnl CF_PKG_CONFIG version: 12 updated: 2021/10/10 20:18:09
3224 dnl Check for the package-config program, unless disabled by command-line.
3226 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3227 AC_DEFUN([CF_PKG_CONFIG],
3229 AC_MSG_CHECKING(if you want to use pkg-config)
3230 AC_ARG_WITH(pkg-config,
3231 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3232 [cf_pkg_config=$withval],
3233 [cf_pkg_config=yes])
3234 AC_MSG_RESULT($cf_pkg_config)
3236 case "$cf_pkg_config" in
3241 CF_ACVERSION_CHECK(2.52,
3242 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3243 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3250 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3251 if test "$PKG_CONFIG" != none ; then
3252 CF_PATH_SYNTAX(PKG_CONFIG)
3253 elif test "x$cf_pkg_config" != xno ; then
3254 AC_MSG_WARN(pkg-config is not installed)
3257 AC_SUBST(PKG_CONFIG)
3259 dnl ---------------------------------------------------------------------------
3260 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3261 dnl -----------------
3262 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3264 dnl POSIX.1-1990 _POSIX_SOURCE
3265 dnl POSIX.1-1990 and _POSIX_SOURCE and
3266 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3268 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3269 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3270 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3273 dnl $1 is the nominal value for _POSIX_C_SOURCE
3274 AC_DEFUN([CF_POSIX_C_SOURCE],
3275 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3277 if test "$cf_cv_posix_visible" = no; then
3279 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3281 cf_save_CFLAGS="$CFLAGS"
3282 cf_save_CPPFLAGS="$CPPFLAGS"
3284 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3285 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3287 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3288 CF_MSG_LOG(if the symbol is already defined go no further)
3289 AC_TRY_COMPILE([#include <sys/types.h>],[
3290 #ifndef _POSIX_C_SOURCE
3293 [cf_cv_posix_c_source=no],
3294 [cf_want_posix_source=no
3295 case .$cf_POSIX_C_SOURCE in
3297 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3300 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3301 cf_want_posix_source=yes
3304 cf_want_posix_source=yes
3307 if test "$cf_want_posix_source" = yes ; then
3308 AC_TRY_COMPILE([#include <sys/types.h>],[
3309 #ifdef _POSIX_SOURCE
3312 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3314 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3315 CFLAGS="$cf_trim_CFLAGS"
3316 CPPFLAGS="$cf_trim_CPPFLAGS"
3317 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3318 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3319 AC_TRY_COMPILE([#include <sys/types.h>],[
3320 #ifndef _POSIX_C_SOURCE
3323 [cf_cv_posix_c_source=no])
3324 CFLAGS="$cf_save_CFLAGS"
3325 CPPFLAGS="$cf_save_CPPFLAGS"
3329 if test "$cf_cv_posix_c_source" != no ; then
3330 CFLAGS="$cf_trim_CFLAGS"
3331 CPPFLAGS="$cf_trim_CPPFLAGS"
3332 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3335 fi # cf_cv_posix_visible
3338 dnl ---------------------------------------------------------------------------
3339 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3340 dnl ----------------
3341 dnl POSIX documents test-macros which an application may set before any system
3342 dnl headers are included to make features available.
3344 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3345 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3346 dnl recent features visible in the system header files unless the application
3347 dnl overrides the corresponding test-macros. Doing that introduces portability
3350 dnl This macro makes a special check for the symbols used for this, to avoid a
3351 dnl conflicting definition.
3352 AC_DEFUN([CF_POSIX_VISIBLE],
3354 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3355 AC_TRY_COMPILE([#include <stdio.h>],[
3356 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3357 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3358 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3359 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3360 #error conflicting symbols found
3362 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3365 dnl ---------------------------------------------------------------------------
3366 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3368 dnl Append definitions and rules for the given programs to the subdirectory
3369 dnl Makefiles, and the recursion rule for the top-level Makefile.
3372 dnl $1 = script to run
3373 dnl $2 = list of subdirectories
3377 AC_DEFUN([CF_PRG_RULES],
3381 if test ! -d "$srcdir/$cf_dir" ; then
3383 elif test -f "$srcdir/$cf_dir/programs" ; then
3384 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3389 dnl ---------------------------------------------------------------------------
3390 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3392 dnl standard check for CC, plus followup sanity checks
3393 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3394 AC_DEFUN([CF_PROG_CC],[
3395 CF_ACVERSION_CHECK(2.53,
3396 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3397 AC_REQUIRE([AC_PROG_CC])],
3399 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3401 CF_ACVERSION_CHECK(2.52,
3406 dnl ---------------------------------------------------------------------------
3407 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3409 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3410 dnl misc/tabset install won't work properly. Usually this happens only when
3411 dnl using the fallback mkinstalldirs script
3412 AC_DEFUN([CF_PROG_INSTALL],
3418 CF_DIRNAME(cf_dir,$INSTALL)
3419 test -z "$cf_dir" && cf_dir=.
3420 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3424 dnl ---------------------------------------------------------------------------
3425 dnl CF_PROG_LINT version: 5 updated: 2022/08/20 15:44:13
3427 AC_DEFUN([CF_PROG_LINT],
3429 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3431 (xcppcheck|x*/cppcheck)
3432 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3438 dnl ---------------------------------------------------------------------------
3439 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3440 dnl ----------------
3441 dnl Remove a given option from CFLAGS/CPPFLAGS
3442 dnl $1 = option to remove
3443 dnl $2 = variable to update
3444 dnl $3 = nonempty to allow verbose message
3445 define([CF_REMOVE_CFLAGS],
3447 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3450 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3451 test "[$]$2" != "$cf_old_cflag" || break
3452 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3456 dnl ---------------------------------------------------------------------------
3457 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3458 dnl ----------------
3459 dnl Remove all -U and -D options that refer to the given symbol from a list
3460 dnl of C compiler options. This works around the problem that not all
3461 dnl compilers process -U and -D options from left-to-right, so a -U option
3462 dnl cannot be used to cancel the effect of a preceding -D option.
3464 dnl $1 = target (which could be the same as the source variable)
3465 dnl $2 = source (including '$')
3466 dnl $3 = symbol to remove
3467 define([CF_REMOVE_DEFINE],
3470 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3471 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3473 dnl ---------------------------------------------------------------------------
3474 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3475 dnl ---------------------
3476 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3477 dnl $1 = name of current macro
3478 define([CF_RESTORE_XTRA_FLAGS],
3480 LIBS="$cf_save_LIBS_$1"
3481 CFLAGS="$cf_save_CFLAGS_$1"
3482 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3484 dnl ---------------------------------------------------------------------------
3485 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3487 AC_DEFUN([CF_RPATH_HACK],
3488 [AC_REQUIRE([AC_PROG_FGREP])dnl
3489 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3491 AC_MSG_CHECKING(for updated LDFLAGS)
3492 if test -n "$LD_RPATH_OPT" ; then
3493 AC_MSG_RESULT(maybe)
3495 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3496 cf_rpath_list="/usr/lib /lib"
3497 if test "$cf_ldd_prog" != no
3501 AC_TRY_LINK([#include <stdio.h>],
3503 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3504 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3506 # If we passed the link-test, but get a "not found" on a given library,
3507 # this could be due to inept reconfiguration of gcc to make it only
3508 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3509 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3510 # /usr/local libraries.
3511 if test -n "$cf_rpath_oops"
3513 for cf_rpath_src in $cf_rpath_oops
3515 for cf_rpath_dir in \
3520 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3522 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3523 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3531 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3533 CF_RPATH_HACK_2(LDFLAGS)
3534 CF_RPATH_HACK_2(LIBS)
3536 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3540 AC_SUBST(EXTRA_LDFLAGS)
3542 dnl ---------------------------------------------------------------------------
3543 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3545 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3546 dnl EXTRA_LDFLAGS for each -L option found.
3548 dnl $cf_rpath_list contains a list of directories to ignore.
3550 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3551 dnl but LIBS often has misplaced -L options.
3552 AC_DEFUN([CF_RPATH_HACK_2],
3554 CF_VERBOSE(...checking $1 [$]$1)
3557 for cf_rpath_src in [$]$1
3559 case "$cf_rpath_src" in
3562 # check if this refers to a directory which we will ignore
3564 if test -n "$cf_rpath_list"
3566 for cf_rpath_item in $cf_rpath_list
3568 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3576 if test "$cf_rpath_skip" = no
3578 # transform the option
3579 if test "$LD_RPATH_OPT" = "-R " ; then
3580 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3582 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3585 # if we have not already added this, add it now
3586 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3587 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3589 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3590 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3595 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3599 CF_VERBOSE(...checked $1 [$]$1)
3600 AC_SUBST(EXTRA_LDFLAGS)
3602 dnl ---------------------------------------------------------------------------
3603 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3604 dnl ------------------
3605 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3606 dnl and libraries which do not update those variables.
3608 dnl $1 = name of current macro
3609 define([CF_SAVE_XTRA_FLAGS],
3611 cf_save_LIBS_$1="$LIBS"
3612 cf_save_CFLAGS_$1="$CFLAGS"
3613 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3614 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3615 for cf_X_CFLAGS in $X_CFLAGS
3617 case "x$cf_X_CFLAGS" in
3619 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3622 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3627 dnl ---------------------------------------------------------------------------
3628 dnl CF_SIGWINCH version: 6 updated: 2021/01/01 13:31:04
3630 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3631 dnl programs need this test).
3633 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3634 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3635 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3636 dnl break that part of the interface as well.
3637 AC_DEFUN([CF_SIGWINCH],
3639 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3641 #include <sys/types.h>
3642 #include <sys/signal.h>
3643 ],[int x = SIGWINCH; (void)x],
3644 [cf_cv_define_sigwinch=yes],
3646 #undef _XOPEN_SOURCE
3647 #undef _POSIX_SOURCE
3648 #undef _POSIX_C_SOURCE
3649 #include <sys/types.h>
3650 #include <sys/signal.h>
3651 ],[int x = SIGWINCH; (void)x],
3652 [cf_cv_define_sigwinch=maybe],
3653 [cf_cv_define_sigwinch=no])
3657 if test "$cf_cv_define_sigwinch" = maybe ; then
3658 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3659 cf_cv_fixup_sigwinch=unknown
3661 while test "$cf_sigwinch" != 1
3664 #undef _XOPEN_SOURCE
3665 #undef _POSIX_SOURCE
3666 #undef _POSIX_C_SOURCE
3667 #include <sys/types.h>
3668 #include <sys/signal.h>
3670 #if SIGWINCH != $cf_sigwinch
3673 int x = SIGWINCH; (void)x],
3674 [cf_cv_fixup_sigwinch=$cf_sigwinch
3677 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3681 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3682 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3686 dnl ---------------------------------------------------------------------------
3687 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3689 dnl signal handler, but there are some gcc dependencies in that recommendation.
3691 AC_DEFUN([CF_SIG_ATOMIC_T],
3693 AC_MSG_CHECKING(for signal global datatype)
3694 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3696 "volatile sig_atomic_t" \
3701 #include <sys/types.h>
3707 static void handler(int sig)
3712 [signal(SIGINT, handler);
3714 [cf_cv_sig_atomic_t=$cf_type],
3715 [cf_cv_sig_atomic_t=no])
3716 test "$cf_cv_sig_atomic_t" != no && break
3719 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3720 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3722 dnl ---------------------------------------------------------------------------
3723 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3725 dnl Construct a search-list for a nonstandard header/lib-file
3726 dnl $1 = the variable to return as result
3727 dnl $2 = the package name
3728 dnl $3 = the subdirectory, e.g., bin, include or lib
3729 AC_DEFUN([CF_SUBDIR_PATH],
3733 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3735 for cf_subdir_prefix in \
3743 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3746 dnl ---------------------------------------------------------------------------
3747 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3748 dnl ------------------
3749 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3750 dnl older SCO configurations.
3751 AC_DEFUN([CF_SYS_TIME_SELECT],
3753 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3754 AC_CACHE_VAL(cf_cv_sys_time_select,[
3756 #include <sys/types.h>
3757 #ifdef HAVE_SYS_TIME_H
3758 #include <sys/time.h>
3760 #ifdef HAVE_SYS_SELECT_H
3761 #include <sys/select.h>
3763 ],[],[cf_cv_sys_time_select=yes],
3764 [cf_cv_sys_time_select=no])
3766 AC_MSG_RESULT($cf_cv_sys_time_select)
3767 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3769 dnl ---------------------------------------------------------------------------
3770 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3772 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3773 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3774 dnl but some packagers change this, breaking various applications.
3775 AC_DEFUN([CF_TERM_HEADER],[
3776 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3777 case "${cf_cv_ncurses_header}" in
3778 (*/ncurses.h|*/ncursesw.h)
3779 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3782 cf_term_header=term.h
3786 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3788 AC_TRY_COMPILE([#include <stdio.h>
3789 #include <${cf_cv_ncurses_header:-curses.h}>
3791 ],[int x = auto_left_margin; (void)x],[
3792 cf_cv_term_header="$cf_test"],[
3793 cf_cv_term_header=unknown
3795 test "$cf_cv_term_header" != unknown && break
3799 # Set definitions to allow ifdef'ing to accommodate subdirectories
3801 case "$cf_cv_term_header" in
3803 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3807 case "$cf_cv_term_header" in
3809 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3812 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3816 dnl ---------------------------------------------------------------------------
3817 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3819 dnl Define a top_builddir symbol, for applications that need an absolute path.
3820 AC_DEFUN([CF_TOP_BUILDDIR],
3822 top_builddir=ifelse($1,,`pwd`,$1)
3823 AC_SUBST(top_builddir)
3825 dnl ---------------------------------------------------------------------------
3826 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3828 dnl Check for type of function-pointer passed to tputs. Some old
3829 dnl implementations used functions that had different prototypes, making it
3830 dnl hard to compile portable programs using tputs.
3831 AC_DEFUN([CF_TPUTS_PROTO],[
3832 CF_CURSES_FUNCS(tputs)
3833 if test "x$cf_cv_func_tputs" = xyes
3836 for cf_arg in int char
3838 for cf_ret in int void
3840 if test "$cf_ret" = void
3842 cf_return="/* nothing */"
3844 cf_return="return value"
3847 #include <${cf_cv_ncurses_header:-curses.h}>
3848 #include <$cf_cv_term_header>
3850 static $cf_ret outc($cf_arg value) { $cf_return; }
3852 tputs("hello", 0, outc);
3853 ${cf_cv_main_return:-return}(0);
3855 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3856 cat >>confdefs.h <<EOF
3857 #define TPUTS_ARG $cf_arg
3858 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3859 #define TPUTS_RETURN(value) $cf_return
3865 test "$cf_done" = yes && break
3869 dnl ---------------------------------------------------------------------------
3870 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3872 dnl Trim extra base X libraries added as a workaround for inconsistent library
3873 dnl dependencies returned by "new" pkg-config files.
3874 AC_DEFUN([CF_TRIM_X_LIBS],[
3875 for cf_trim_lib in Xmu Xt X11
3878 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3879 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3880 CF_VERBOSE(..trimmed $LIBS)
3885 dnl ---------------------------------------------------------------------------
3886 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3887 dnl -----------------
3888 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3889 dnl available in that form.
3891 dnl $1 = package name, which may be a shell variable
3892 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3893 dnl $3 = logic to use if pkg-config does not have the package
3894 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3895 AC_REQUIRE([CF_PKG_CONFIG])
3897 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3898 CF_VERBOSE(found package $1)
3899 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3900 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3901 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3902 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3903 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3904 CF_ADD_LIBS($cf_pkgconfig_libs)
3905 ifelse([$2],,:,[$2])
3909 ifelse([$3],,:,[$3])
3912 dnl ---------------------------------------------------------------------------
3913 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
3914 dnl -------------------
3915 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3916 dnl can define it successfully.
3917 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3918 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3919 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
3920 [cf_cv_xopen_source=no],
3921 [cf_save="$CPPFLAGS"
3922 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3923 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
3924 [cf_cv_xopen_source=no],
3925 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3930 if test "$cf_cv_xopen_source" != no ; then
3931 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3932 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3933 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3934 CF_APPEND_CFLAGS($cf_temp_xopen_source)
3937 dnl ---------------------------------------------------------------------------
3938 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3940 dnl Make an uppercase version of a variable
3941 dnl $1=uppercase($2)
3942 AC_DEFUN([CF_UPPER],
3944 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3946 dnl ---------------------------------------------------------------------------
3947 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
3949 dnl Check for multibyte support, and if not found, utf8 compatibility library
3950 AC_DEFUN([CF_UTF8_LIB],
3952 AC_HAVE_HEADERS(wchar.h)
3953 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3954 cf_save_LIBS="$LIBS"
3956 $ac_includes_default
3961 [cf_cv_utf8_lib=yes],
3963 #include <libutf8.h>],[putwc(0,0);],utf8,
3964 [cf_cv_utf8_lib=add-on],
3965 [cf_cv_utf8_lib=no])
3968 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3970 if test "$cf_cv_utf8_lib" = "add-on" ; then
3971 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3972 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3973 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3974 CF_ADD_LIBS($cf_cv_library_file_utf8)
3977 dnl ---------------------------------------------------------------------------
3978 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3980 dnl Use AC_VERBOSE w/o the warnings
3981 AC_DEFUN([CF_VERBOSE],
3982 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3985 dnl ---------------------------------------------------------------------------
3986 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
3988 dnl Check if type wide-character type $1 is declared, and if so, which header
3989 dnl file is needed. The second parameter is used to set a shell variable when
3990 dnl the type is not found. The first parameter sets a shell variable for the
3992 AC_DEFUN([CF_WCHAR_TYPE],
3994 # This is needed on Tru64 5.0 to declare $1
3995 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
4000 #ifdef HAVE_LIBUTF8_H
4001 #include <libutf8.h>
4010 #ifdef HAVE_LIBUTF8_H
4011 #include <libutf8.h>
4015 [cf_cv_$1=unknown])])])
4017 if test "$cf_cv_$1" = yes ; then
4018 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
4023 # if we do not find $1 in either place, use substitution to provide a fallback.
4024 if test "$cf_cv_$1" = unknown ; then
4029 # if we find $1 in either place, use substitution to provide a fallback.
4030 if test "$cf_cv_$1" != unknown ; then
4035 dnl ---------------------------------------------------------------------------
4036 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4037 dnl ------------------
4038 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4040 AC_DEFUN([CF_WITH_CURSES_DIR],[
4042 AC_MSG_CHECKING(for specific curses-directory)
4043 AC_ARG_WITH(curses-dir,
4044 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4045 [cf_cv_curses_dir=$withval],
4046 [cf_cv_curses_dir=no])
4047 AC_MSG_RESULT($cf_cv_curses_dir)
4049 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4051 CF_PATH_SYNTAX(withval)
4052 if test -d "$cf_cv_curses_dir"
4054 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4055 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4059 dnl ---------------------------------------------------------------------------
4060 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
4061 dnl ----------------
4062 dnl Configure-option for dbmalloc. The optional parameter is used to override
4063 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4064 AC_DEFUN([CF_WITH_DBMALLOC],[
4065 CF_NO_LEAKS_OPTION(dbmalloc,
4066 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
4069 if test "$with_dbmalloc" = yes ; then
4070 AC_CHECK_HEADER(dbmalloc.h,
4071 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
4074 dnl ---------------------------------------------------------------------------
4075 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
4077 dnl Configure-option for dmalloc. The optional parameter is used to override
4078 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4079 AC_DEFUN([CF_WITH_DMALLOC],[
4080 CF_NO_LEAKS_OPTION(dmalloc,
4081 [ --with-dmalloc test: use Gray Watson's dmalloc library],
4084 if test "$with_dmalloc" = yes ; then
4085 AC_CHECK_HEADER(dmalloc.h,
4086 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
4089 dnl ---------------------------------------------------------------------------
4090 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
4091 dnl --------------------
4092 dnl Allow for overriding the basename of a library, i.e., the part to which
4093 dnl prefixes/suffixes are attached.
4095 dnl $1 = variable to set
4096 dnl $2 = option name
4097 dnl $3 = default basename for library, if omitted use $2
4098 AC_DEFUN([CF_WITH_LIB_BASENAME],
4100 AC_MSG_CHECKING(for desired basename for $2 library)
4101 AC_ARG_WITH($2-libname,
4102 [ --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
4103 [with_lib_basename=$withval],
4104 [with_lib_basename=ifelse($3,,$2,$3)])
4105 $1="$with_lib_basename"
4109 $1=ifelse($3,,$2,$3)
4115 AC_MSG_RESULT([$]$1)
4118 dnl ---------------------------------------------------------------------------
4119 dnl CF_WITH_NCURSES_ETC version: 5 updated: 2016/02/20 19:23:20
4120 dnl -------------------
4121 dnl Use this macro for programs which use any variant of "curses", e.g.,
4122 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
4123 dnl library (such as slang) should use a "--with-screen=XXX" option.
4125 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
4126 dnl of the macros inside this one - before this macro.
4127 define([CF_WITH_NCURSES_ETC],[
4132 AC_MSG_CHECKING(for specified curses library type)
4134 [ --with-screen=XXX use specified curses-libraries],
4135 [cf_cv_screen=$withval],[
4137 AC_ARG_WITH(ncursesw,
4138 [ --with-ncursesw use wide ncurses-libraries],
4139 [cf_cv_screen=ncursesw],[
4141 AC_ARG_WITH(ncurses,
4142 [ --with-ncurses use ncurses-libraries],
4143 [cf_cv_screen=ncurses],[
4145 AC_ARG_WITH(pdcurses,
4146 [ --with-pdcurses compile/link with pdcurses X11 library],
4147 [cf_cv_screen=pdcurses],[
4149 AC_ARG_WITH(curses-colr,
4150 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
4151 [cf_cv_screen=curses_colr],[
4153 AC_ARG_WITH(curses-5lib,
4154 [ --with-curses-5lib compile/link with SunOS 5lib curses],
4155 [cf_cv_screen=curses_5lib])])])])])])
4157 AC_MSG_RESULT($cf_cv_screen)
4159 case $cf_cv_screen in
4165 CF_NCURSES_CONFIG($cf_cv_screen)
4168 CF_NCURSES_CONFIG($cf_cv_screen)
4174 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4178 CF_NCURSES_PTHREADS($cf_cv_screen)
4181 dnl ---------------------------------------------------------------------------
4182 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4183 dnl -----------------------
4184 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4185 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4186 dnl script to search for the X11/Xt header files to declare (or not) the
4187 dnl symbol needed to enable "const" in those header files. If that configure
4188 dnl option is not used, then those checks are unnecessary.
4189 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4190 AC_PROVIDE([AC_PATH_XTRA])
4191 AC_PROVIDE([AC_PATH_X])
4192 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4198 dnl ---------------------------------------------------------------------------
4199 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4200 dnl ----------------
4201 AC_DEFUN([CF_WITH_VALGRIND],[
4202 CF_NO_LEAKS_OPTION(valgrind,
4203 [ --with-valgrind test: use valgrind],
4206 dnl ---------------------------------------------------------------------------
4207 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
4209 dnl Handle configure option "--with-x11-rgb", setting these shell
4212 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4213 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4215 dnl Most Linux's use this:
4216 dnl /usr/share/X11/rgb.txt
4217 dnl Debian uses this:
4218 dnl /etc/X11/rgb.txt
4219 dnl DragonFlyBSD ports uses this:
4220 dnl /usr/pkg/lib/X11/rgb.txt
4221 dnl FreeBSD ports use these:
4222 dnl /usr/local/lib/X11/rgb.txt
4223 dnl /usr/local/share/X11/rgb.txt
4224 dnl Mandriva has these:
4225 dnl /usr/lib/X11/rgb.txt
4226 dnl /usr/lib64/X11/rgb.txt
4227 dnl NetBSD has these
4228 dnl /usr/X11R7/lib/X11/rgb.txt
4229 dnl OpenSolaris uses
4231 dnl /usr/X11/etc/X11/rgb.txt
4232 dnl /usr/X11/share/X11/rgb.txt
4233 dnl /usr/X11/lib/X11/rgb.txt
4235 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4236 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4238 dnl /usr/X11/etc/X11/rgb.txt
4239 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4240 dnl /usr/X11/lib/amd64/X11/rgb.txt
4241 dnl Solaris10 uses (in this order):
4242 dnl /usr/openwin/lib/X11/rgb.txt
4243 dnl /usr/X11/lib/X11/rgb.txt
4244 AC_DEFUN([CF_WITH_X11_RGB],[
4245 AC_MSG_CHECKING(for X11 rgb file)
4246 AC_ARG_WITH(x11-rgb,
4247 [ --with-x11-rgb=FILE file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
4248 [RGB_PATH=$withval],
4251 if test "x[$]RGB_PATH" = xauto
4253 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4255 /opt/local/share/X11/rgb.txt \
4256 /opt/X11/share/X11/rgb.txt \
4257 /usr/share/X11/rgb.txt \
4258 /usr/X11/share/X11/rgb.txt \
4259 /usr/X11/lib/X11/rgb.txt \
4260 /usr/lib/X11/rgb.txt \
4262 /usr/pkg/lib/X11/rgb.txt \
4263 /usr/X11R7/lib/X11/rgb.txt \
4264 /usr/X11R6/lib/X11/rgb.txt \
4265 /usr/X11R5/lib/X11/rgb.txt \
4266 /usr/X11R4/lib/X11/rgb.txt \
4267 /usr/local/lib/X11/rgb.txt \
4268 /usr/local/share/X11/rgb.txt \
4269 /usr/lib64/X11/rgb.txt
4271 if test -f "$cf_path" ; then
4278 CF_PATH_SYNTAX(cf_path)
4281 AC_MSG_RESULT($RGB_PATH)
4283 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4286 if test "$RGB_PATH" = no
4290 AC_SUBST(no_x11_rgb)
4292 dnl ---------------------------------------------------------------------------
4293 dnl CF_XOPEN_CURSES version: 18 updated: 2023/01/11 04:05:23
4295 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4296 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4298 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4299 dnl as getbegy(). The latter is better design, but the former is standard.
4300 AC_DEFUN([CF_XOPEN_CURSES],
4302 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4303 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4304 cf_cv_need_xopen_extension=unknown
4306 $ac_includes_default
4307 #include <${cf_cv_ncurses_header:-curses.h}>],[
4308 #if defined(NCURSES_VERSION_PATCH)
4309 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4313 #ifdef NCURSES_WIDECHAR
4314 make an error /* prefer to fall-through on the second checks */
4317 int check2 = curs_set((int)sizeof(check));
4318 long x = winnstr(stdscr, "", 0);
4321 getbegyx(stdscr, y1, x1);
4326 [cf_cv_need_xopen_extension=none],
4328 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4331 #define $cf_try_xopen_extension 1
4332 $ac_includes_default
4333 #include <${cf_cv_ncurses_header:-curses.h}>],[
4335 int check2 = curs_set((int)sizeof(check));
4336 long x = winnstr(stdscr, "", 0);
4338 getbegyx(stdscr, y1, x1);
4344 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4349 case "$cf_cv_need_xopen_extension" in
4351 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4356 dnl ---------------------------------------------------------------------------
4357 dnl CF_XOPEN_SOURCE version: 63 updated: 2022/12/29 10:10:26
4359 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4360 dnl or adapt to the vendor's definitions to get equivalent functionality,
4361 dnl without losing the common non-POSIX features.
4364 dnl $1 is the nominal value for _XOPEN_SOURCE
4365 dnl $2 is the nominal value for _POSIX_C_SOURCE
4366 AC_DEFUN([CF_XOPEN_SOURCE],[
4367 AC_REQUIRE([AC_CANONICAL_HOST])
4368 AC_REQUIRE([CF_POSIX_VISIBLE])
4370 if test "$cf_cv_posix_visible" = no; then
4372 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4373 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4378 cf_xopen_source="-D_ALL_SOURCE"
4384 cf_xopen_source="-D_APPLE_C_SOURCE"
4387 cf_xopen_source="-D_DARWIN_C_SOURCE"
4390 (freebsd*|dragonfly*|midnightbsd*)
4391 # 5.x headers associate
4392 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4393 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4394 cf_POSIX_C_SOURCE=200112L
4396 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4399 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4402 cf_xopen_source="-D_HPUX_SOURCE"
4405 cf_xopen_source="-D_SGI_SOURCE"
4408 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4409 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4412 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4415 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4417 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4420 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4423 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4424 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4425 # Abusing the conformance level is a workaround.
4426 AC_MSG_WARN(this system does not provide usable locale support)
4427 cf_xopen_source="-D_BSD_SOURCE"
4431 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4432 cf_xopen_source="-D_BSD_SOURCE"
4436 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4439 cf_xopen_source="-D_OSF_SOURCE"
4442 cf_xopen_source="-D_QNX_SOURCE"
4445 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4448 cf_xopen_source="-D__EXTENSIONS__"
4449 cf_cv_xopen_source=broken
4451 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4457 cf_save_xopen_cppflags="$CPPFLAGS"
4458 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4459 # Some of these niche implementations use copy/paste, double-check...
4460 if test "$cf_cv_xopen_source" != no ; then
4461 CF_VERBOSE(checking if _POSIX_C_SOURCE inteferes)
4462 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
4463 AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
4464 CPPFLAGS="$cf_save_xopen_cppflags"])
4469 if test -n "$cf_xopen_source" ; then
4470 CF_APPEND_CFLAGS($cf_xopen_source,true)
4473 dnl In anything but the default case, we may have system-specific setting
4474 dnl which is still not guaranteed to provide all of the entrypoints that
4475 dnl _XOPEN_SOURCE would yield.
4476 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4477 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4478 AC_TRY_COMPILE([#include <stdlib.h>],[
4479 #ifndef _XOPEN_SOURCE
4482 [cf_XOPEN_SOURCE_set=yes],
4483 [cf_XOPEN_SOURCE_set=no])
4484 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4485 if test "$cf_XOPEN_SOURCE_set" = yes
4487 AC_TRY_COMPILE([#include <stdlib.h>],[
4488 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4491 [cf_XOPEN_SOURCE_set_ok=yes],
4492 [cf_XOPEN_SOURCE_set_ok=no])
4493 if test "$cf_XOPEN_SOURCE_set_ok" = no
4495 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4501 fi # cf_cv_posix_visible
4503 dnl ---------------------------------------------------------------------------
4504 dnl CF_X_ATHENA version: 25 updated: 2023/01/11 04:05:23
4506 dnl Check for Xaw (Athena) libraries
4508 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4509 AC_DEFUN([CF_X_ATHENA],
4511 cf_x_athena=${cf_x_athena:-Xaw}
4513 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4516 [ --with-Xaw3d link with Xaw 3d library])
4517 if test "$withval" = yes ; then
4524 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4526 AC_ARG_WITH(Xaw3dxft,
4527 [ --with-Xaw3dxft link with Xaw 3d xft library])
4528 if test "$withval" = yes ; then
4529 cf_x_athena=Xaw3dxft
4535 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4538 [ --with-neXtaw link with neXT Athena library])
4539 if test "$withval" = yes ; then
4546 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4548 AC_ARG_WITH(XawPlus,
4549 [ --with-XawPlus link with Athena-Plus library])
4550 if test "$withval" = yes ; then
4559 if test "$PKG_CONFIG" != none ; then
4561 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4562 for cf_athena_pkg in \
4565 ${cf_x_athena}-devel \
4567 lib${cf_x_athena}-devel
4569 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4570 cf_x_athena_lib="$cf_pkgconfig_libs"
4571 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4572 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4576 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4578 $ac_includes_default
4579 #include <X11/Xmu/CharSet.h>
4581 int check = XmuCompareISOLatin1("big", "small");
4583 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4585 if test "$cf_cv_xaw_compat" = no
4587 # workaround for broken ".pc" files...
4588 case "$cf_x_athena_lib" in
4592 CF_VERBOSE(work around broken package)
4594 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4595 CF_TRY_PKG_CONFIG(xmu,[
4597 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4599 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4610 if test -z "$cf_x_athena_lib" ; then
4613 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4614 CF_X_ATHENA_LIBS($cf_x_athena)
4617 dnl ---------------------------------------------------------------------------
4618 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4619 dnl --------------------
4620 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4621 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4622 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4624 AC_REQUIRE([AC_PATH_XTRA])
4625 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4628 for cf_path in default \
4629 /usr/contrib/X11R6 \
4630 /usr/contrib/X11R5 \
4634 if test -z "$cf_x_athena_inc" ; then
4635 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4636 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4637 if test "$cf_path" != default ; then
4638 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4639 AC_MSG_CHECKING(for $cf_test in $cf_path)
4641 AC_MSG_CHECKING(for $cf_test)
4644 #include <X11/Intrinsic.h>
4645 #include <$cf_test>],[],
4648 AC_MSG_RESULT($cf_result)
4649 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4650 if test "$cf_result" = yes ; then
4651 test "$cf_path" = default && cf_x_athena_inc=default
4652 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4658 if test -z "$cf_x_athena_inc" ; then
4659 AC_MSG_WARN([Unable to find Athena header files])
4660 elif test "$cf_x_athena_inc" != default ; then
4661 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4664 dnl ---------------------------------------------------------------------------
4665 dnl CF_X_ATHENA_LIBS version: 14 updated: 2023/01/11 04:05:23
4666 dnl ----------------
4667 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4668 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4669 AC_DEFUN([CF_X_ATHENA_LIBS],
4670 [AC_REQUIRE([CF_X_TOOLKIT])
4671 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4674 for cf_path in default \
4675 /usr/contrib/X11R6 \
4676 /usr/contrib/X11R5 \
4681 ${cf_x_athena_root} \
4682 ${cf_x_athena_root}7 \
4683 ${cf_x_athena_root}6
4687 "-l$cf_lib -lXpm -lXmu" \
4688 "-l${cf_lib}_s -lXmu_s"
4690 test -n "$cf_x_athena_lib" && break
4692 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4693 cf_test=XawSimpleMenuAddGlobalActions
4694 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4695 CF_ADD_LIBS($cf_libs)
4696 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4698 $ac_includes_default
4699 #include <X11/Intrinsic.h>
4700 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4702 $cf_test((XtAppContext) 0)],
4705 AC_MSG_RESULT($cf_result)
4706 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4708 if test "$cf_result" = yes ; then
4709 cf_x_athena_lib="$cf_libs"
4713 test -n "$cf_x_athena_lib" && break
4717 if test -z "$cf_x_athena_lib" ; then
4719 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4722 CF_ADD_LIBS($cf_x_athena_lib)
4723 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4724 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4726 dnl ---------------------------------------------------------------------------
4727 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4729 AC_DEFUN([CF_X_EXT],[
4730 CF_TRY_PKG_CONFIG(Xext,,[
4731 AC_CHECK_LIB(Xext,XextCreateExtension,
4732 [CF_ADD_LIB(Xext)])])
4734 dnl ---------------------------------------------------------------------------
4735 dnl CF_X_TOOLKIT version: 27 updated: 2023/01/11 04:05:23
4737 dnl Check for X Toolkit libraries
4738 AC_DEFUN([CF_X_TOOLKIT],
4740 AC_REQUIRE([AC_PATH_XTRA])
4741 AC_REQUIRE([CF_CHECK_CACHE])
4743 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4744 # in some cases has installed dummy files in the former, other cases replaced
4745 # it with a link to the new location). This complicates the configure script.
4746 # Check for that pitfall, and recover using pkg-config
4748 # If none of these are set, the configuration is almost certainly broken.
4749 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4751 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4752 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4753 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4754 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4756 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4761 CF_TRY_PKG_CONFIG(xt,[
4767 # we have an "xt" package, but it may omit Xt's dependency on X11
4768 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4770 $ac_includes_default
4771 #include <X11/Xlib.h>
4773 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4774 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4775 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4776 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4777 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4778 if test "$cf_cv_xt_x11_compat" = no
4780 CF_VERBOSE(work around broken X11 dependency)
4781 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4782 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4787 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4789 $ac_includes_default
4790 #include <X11/Shell.h>
4791 ],[int num = IceConnectionNumber(0); (void) num
4792 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4794 if test "$cf_cv_xt_ice_compat" = no
4796 # workaround for broken ".pc" files used for X Toolkit.
4797 case "x$X_PRE_LIBS" in
4803 CF_VERBOSE(work around broken ICE dependency)
4804 CF_TRY_PKG_CONFIG(ice,
4805 [CF_TRY_PKG_CONFIG(sm)],
4806 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4816 LDFLAGS="$X_LIBS $LDFLAGS"
4817 CF_CHECK_CFLAGS($X_CFLAGS)
4819 AC_CHECK_FUNC(XOpenDisplay,,[
4820 AC_CHECK_LIB(X11,XOpenDisplay,
4821 [CF_ADD_LIB(X11)])])
4823 AC_CHECK_FUNC(XtAppInitialize,,[
4824 AC_CHECK_LIB(Xt, XtAppInitialize,
4825 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4827 LIBS="-lXt $LIBS"])])
4830 if test "$cf_have_X_LIBS" = no ; then
4832 [Unable to successfully link X Toolkit library (-lXt) with
4833 test program. You will have to check and add the proper libraries by hand
4837 dnl ---------------------------------------------------------------------------
4838 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4840 dnl Attempt to make a copy of a curses data item. This is needed in the
4841 dnl check-data configure tests when using ncurses, because the symbol may be
4842 dnl actually a function return-value. That could happen if the linker is
4843 dnl broken (does not resolve data-only references), or if ncurses is configured
4844 dnl to support re-entrant code.
4847 define([CF__CURSES_DATA],[
4848 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4849 const void *$1 = (const void *)($2);
4851 const void *$1 = &($2);
4853 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4855 dnl ---------------------------------------------------------------------------
4856 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4858 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4859 dnl are both available.
4860 define([CF__CURSES_HEAD],[
4862 #include <xcurses.h>
4863 char * XCursesProgramName = "test";
4865 #include <${cf_cv_ncurses_header:-curses.h}>
4866 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4867 #include <ncursesw/term.h>
4868 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4869 #include <ncurses/term.h>
4870 #elif defined(HAVE_TERM_H)
4875 dnl ---------------------------------------------------------------------------
4876 dnl CF__XOPEN_SOURCE_BODY version: 1 updated: 2022/09/10 15:17:35
4877 dnl ---------------------
4878 dnl body of test when test-compiling for _XOPEN_SOURCE check
4879 define([CF__XOPEN_SOURCE_BODY],
4881 #ifndef _XOPEN_SOURCE
4885 dnl ---------------------------------------------------------------------------
4886 dnl CF__XOPEN_SOURCE_HEAD version: 1 updated: 2022/09/10 15:17:03
4887 dnl ---------------------
4888 dnl headers to include when test-compiling for _XOPEN_SOURCE check
4889 define([CF__XOPEN_SOURCE_HEAD],
4893 #include <sys/types.h>