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 1.218 2023/10/28 16:08:26 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([$4],,,[
413 dnl ---------------------------------------------------------------------------
414 dnl CF_C11_NORETURN version: 4 updated: 2023/02/18 17:41:25
416 AC_DEFUN([CF_C11_NORETURN],
418 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
419 CF_ARG_ENABLE(stdnoreturn,
420 [ --enable-stdnoreturn enable C11 _Noreturn feature for diagnostics],
421 [enable_stdnoreturn=yes],
422 [enable_stdnoreturn=no])
423 AC_MSG_RESULT($enable_stdnoreturn)
425 if test $enable_stdnoreturn = yes; then
426 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
429 #include <stdnoreturn.h>
430 static _Noreturn void giveup(void) { exit(0); }
432 [if (feof(stdin)) giveup()],
433 cf_cv_c11_noreturn=yes,
434 cf_cv_c11_noreturn=no)
437 cf_cv_c11_noreturn=no,
440 if test "$cf_cv_c11_noreturn" = yes; then
441 AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
442 AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
448 AC_SUBST(HAVE_STDNORETURN_H)
449 AC_SUBST(STDC_NORETURN)
451 dnl ---------------------------------------------------------------------------
452 dnl CF_CC_ENV_FLAGS version: 11 updated: 2023/02/20 11:15:46
454 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
455 dnl into CC. This will not help with broken scripts that wrap the compiler
456 dnl with options, but eliminates a more common category of user confusion.
458 dnl In particular, it addresses the problem of being able to run the C
459 dnl preprocessor in a consistent manner.
461 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
462 dnl the nuisance of having inconsistent settings for compiler and preprocessor
463 dnl outweighs that limitation.
464 AC_DEFUN([CF_CC_ENV_FLAGS],
466 # This should have been defined by AC_PROG_CC
469 AC_MSG_CHECKING(\$CFLAGS variable)
472 AC_MSG_RESULT(broken)
473 AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
476 for cf_arg in $cf_flags
478 CF_ADD_CFLAGS($cf_arg)
486 AC_MSG_CHECKING(\$CC variable)
489 AC_MSG_RESULT(broken)
490 AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
492 cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
493 cf_flags=`echo "$CC" | sed -e "s%^$cf_prog%%"`
495 for cf_arg in $cf_flags
499 CF_ADD_CFLAGS($cf_arg)
506 CF_VERBOSE(resulting CC: '$CC')
507 CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
508 CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
515 dnl ---------------------------------------------------------------------------
516 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
518 dnl Check if we're accidentally using a cache from a different machine.
519 dnl Derive the system name, as a check for reusing the autoconf cache.
521 dnl If we've packaged config.guess and config.sub, run that (since it does a
522 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
523 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
524 dnl which is useful in cross-compiles.
526 dnl Note: we would use $ac_config_sub, but that is one of the places where
527 dnl autoconf 2.5x broke compatibility with autoconf 2.13
528 AC_DEFUN([CF_CHECK_CACHE],
530 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
531 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
532 system_name="$host_os"
534 system_name="`(uname -s -r) 2>/dev/null`"
535 if test -z "$system_name" ; then
536 system_name="`(hostname) 2>/dev/null`"
539 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
540 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
542 test -z "$system_name" && system_name="$cf_cv_system_name"
543 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
545 if test ".$system_name" != ".$cf_cv_system_name" ; then
546 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
547 AC_MSG_ERROR("Please remove config.cache and try again.")
550 dnl ---------------------------------------------------------------------------
551 dnl CF_CHECK_CFLAGS version: 4 updated: 2021/01/02 19:22:58
553 dnl Conditionally add to $CFLAGS and $CPPFLAGS values which are derived from
554 dnl a build-configuration such as imake. These have the pitfall that they
555 dnl often contain compiler-specific options which we cannot use, mixed with
556 dnl preprocessor options that we usually can.
557 AC_DEFUN([CF_CHECK_CFLAGS],
559 CF_VERBOSE(checking additions to CFLAGS)
560 cf_check_cflags="$CFLAGS"
561 cf_check_cppflags="$CPPFLAGS"
562 CF_ADD_CFLAGS($1,yes)
563 if test "x$cf_check_cflags" != "x$CFLAGS" ; then
564 AC_TRY_LINK([#include <stdio.h>],[printf("Hello world");],,
565 [CF_VERBOSE(test-compile failed. Undoing change to \$CFLAGS)
566 if test "x$cf_check_cppflags" != "x$CPPFLAGS" ; then
567 CF_VERBOSE(but keeping change to \$CPPFLAGS)
569 CFLAGS="$cf_check_cflags"])
572 dnl ---------------------------------------------------------------------------
573 dnl CF_CHECK_CURSES_LIB version: 4 updated: 2021/09/05 17:25:40
574 dnl -------------------
575 dnl $1 = nominal library name, used also for header lookup
576 dnl $2 = suffix to append to library name
577 dnl $3 = function to check for using AC_CHECK_LIB
578 dnl $4 = optional parameter list for $3
579 AC_DEFUN([CF_CHECK_CURSES_LIB],
581 AC_REQUIRE([CF_PKG_CONFIG])
583 cf_have_curses_lib=no
585 : ${NCURSES_CONFIG_PKG:=none}
586 if test "x${NCURSES_CONFIG_PKG}" = xnone; then
588 elif test "x${PKG_CONFIG:=none}" != xnone; then
589 AC_MSG_CHECKING(pkg-config for $1$2)
590 if "$PKG_CONFIG" --exists "$1$2" ; then
593 AC_MSG_CHECKING(if the $1$2 package files work)
595 cf_save_CFLAGS="$CFLAGS"
596 cf_save_CPPFLAGS="$CPPFLAGS"
599 CF_APPEND_CFLAGS(`$PKG_CONFIG --cflags "$1$2"`)
600 CF_ADD_LIBS(`$PKG_CONFIG --libs "$1$2"`)
602 AC_TRY_LINK([#include <$1.h>],
603 [(void) $3 ( ]ifelse([$4],,,[[$4]])[ );],
604 [AC_TRY_RUN([#include <$1.h>
606 { (void) $3 ( ]ifelse([$4],,,[[$4]])[ ); return 0; }],
607 [cf_have_curses_lib=yes],
608 [cf_have_curses_lib=no],
609 [cf_have_curses_lib=maybe])],
610 [cf_have_curses_lib=no])
611 AC_MSG_RESULT($cf_have_curses_lib)
612 test "$cf_have_curses_lib" = maybe && cf_have_curses_lib=yes
613 if test "$cf_have_curses_lib" = "yes"
615 CF_UPPER(cf_upper,have_lib$1)
616 AC_DEFINE_UNQUOTED($cf_upper,1)
618 CFLAGS="$cf_save_CFLAGS"
619 CPPFLAGS="$cf_save_CPPFLAGS"
624 if test "$cf_have_curses_lib" = no; then
625 AC_CHECK_LIB($1$2,$3,[
626 CF_UPPER(cf_upper,have_lib$1)
628 AC_DEFINE_UNQUOTED($cf_upper,1)])
631 dnl ---------------------------------------------------------------------------
632 dnl CF_CLANG_COMPILER version: 9 updated: 2023/02/18 17:41:25
633 dnl -----------------
634 dnl Check if the given compiler is really clang. clang's C driver defines
635 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
636 dnl not ignore some gcc options.
638 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
639 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
640 dnl the wrappers for gcc and g++ warnings.
642 dnl $1 = GCC (default) or GXX
643 dnl $2 = CLANG_COMPILER (default)
644 dnl $3 = CFLAGS (default) or CXXFLAGS
645 AC_DEFUN([CF_CLANG_COMPILER],[
646 ifelse([$2],,CLANG_COMPILER,[$2])=no
648 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
649 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
650 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
654 #error __clang__ is not defined
656 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
658 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
659 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
664 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
666 (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
667 AC_MSG_WARN(replacing broken compiler alias $CC)
668 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
673 AC_MSG_CHECKING(version of $CC)
674 CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
675 test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
676 AC_MSG_RESULT($CLANG_VERSION)
678 for cf_clang_opt in \
680 -Wno-error=implicit-function-declaration
682 AC_MSG_CHECKING(if option $cf_clang_opt works)
683 cf_save_CFLAGS="$CFLAGS"
684 CFLAGS="$CFLAGS $cf_clang_opt"
686 #include <stdio.h>],[
687 printf("hello!\\n");],[
688 cf_clang_optok=yes],[
690 AC_MSG_RESULT($cf_clang_optok)
691 CFLAGS="$cf_save_CFLAGS"
692 if test "$cf_clang_optok" = yes; then
693 CF_VERBOSE(adding option $cf_clang_opt)
694 CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
699 dnl ---------------------------------------------------------------------------
700 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
701 dnl -----------------
702 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
703 dnl character-strings.
705 dnl It is ambiguous because the specification accommodated the pre-ANSI
706 dnl compilers bundled by more than one vendor in lieu of providing a standard C
707 dnl compiler other than by costly add-ons. Because of this, the specification
708 dnl did not take into account the use of const for telling the compiler that
709 dnl string literals would be in readonly memory.
711 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
712 dnl let the compiler decide how to represent Xt's strings which were #define'd.
713 dnl That does not solve the problem of using the block of Xt's strings which
714 dnl are compiled into the library (and is less efficient than one might want).
716 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
717 dnl when compiling the library and compiling using the library, to tell the
718 dnl compiler that String is const.
719 AC_DEFUN([CF_CONST_X_STRING],
721 AC_REQUIRE([AC_PATH_XTRA])
723 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
728 #include <X11/Intrinsic.h>
730 [String foo = malloc(1); free((void*)foo)],[
732 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
735 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
736 #undef XTSTRINGDEFINES /* X11R5 and later */
738 #include <X11/Intrinsic.h>
739 ],[String foo = malloc(1); *foo = 0],[
740 cf_cv_const_x_string=no
742 cf_cv_const_x_string=yes
746 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
748 case "$cf_cv_const_x_string" in
750 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
753 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
759 dnl ---------------------------------------------------------------------------
760 dnl CF_CURSES_ACS_MAP version: 8 updated: 2021/01/04 19:45:09
761 dnl -----------------
762 dnl Check for likely values of acs_map[]:
763 AC_DEFUN([CF_CURSES_ACS_MAP],
765 AC_REQUIRE([CF_NCURSES_WRAP_PREFIX])dnl
766 AC_CACHE_CHECK(for alternate character set array, cf_cv_curses_acs_map,[
767 cf_cv_curses_acs_map=unknown
768 for name in acs_map _acs_map __acs_map ${NCURSES_WRAP_PREFIX}acs_map
771 #include <${cf_cv_ncurses_header:-curses.h}>
773 ${name}['k'] = ACS_PLUS
774 ],[cf_cv_curses_acs_map=$name; break])
778 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_])
780 dnl ---------------------------------------------------------------------------
781 dnl CF_CURSES_CHECK_DATA version: 10 updated: 2021/01/04 19:45:09
782 dnl --------------------
783 dnl Check if curses.h defines the given data/variable.
784 dnl Use this after CF_NCURSES_CONFIG or CF_CURSES_CONFIG.
786 dnl $1 = data item(s) to check for
787 dnl $2 = action on success, e.g., "break" to quit checking a series of choices
788 AC_DEFUN([CF_CURSES_CHECK_DATA],
792 AC_MSG_CHECKING(for data $cf_data declaration in ${cf_cv_ncurses_header:-curses.h})
794 AC_TRY_COMPILE(CF__CURSES_HEAD,
795 CF__CURSES_DATA(foo,$cf_data)
798 AC_MSG_RESULT($cf_result)
800 if test "$cf_result" = yes ; then
801 CF_UPPER(cf_result,have_curses_data_$cf_data)
802 AC_DEFINE_UNQUOTED($cf_result)
805 AC_MSG_CHECKING(for data $cf_data in library)
806 # BSD linkers insist on making weak linkage, but resolve at runtime.
807 AC_TRY_RUN(CF__CURSES_HEAD
809 extern char $cf_data;
812 ]CF__CURSES_DATA(foo,$cf_data)[
813 ${cf_cv_main_return:-return}(foo == 0);
817 AC_TRY_LINK(CF__CURSES_HEAD
818 [extern char $cf_data;],[
820 ]CF__CURSES_DATA(foo,$cf_data)[
821 ${cf_cv_main_return:-return}(foo == 0);
823 ],[cf_result=yes],[cf_result=no])
825 AC_MSG_RESULT($cf_result)
826 if test "$cf_result" = yes ; then
827 CF_UPPER(cf_result,decl_curses_data_$cf_data)
828 AC_DEFINE_UNQUOTED($cf_result)
829 # do not exit loop here, since we prefer system's declarations
834 dnl ---------------------------------------------------------------------------
835 dnl CF_CURSES_CHECK_TYPE version: 5 updated: 2021/01/04 19:45:09
836 dnl --------------------
837 dnl Check if curses.h defines the given type
838 AC_DEFUN([CF_CURSES_CHECK_TYPE],
840 AC_MSG_CHECKING(for type $1 in ${cf_cv_ncurses_header:-curses.h})
842 #ifndef _XOPEN_SOURCE_EXTENDED
843 #define _XOPEN_SOURCE_EXTENDED
845 #include <${cf_cv_ncurses_header:-curses.h}>],[
847 ],cf_result=yes,cf_result=no)
848 AC_MSG_RESULT($cf_result)
849 if test "$cf_result" = yes ; then
850 CF_UPPER(cf_result,have_type_$1)
851 AC_DEFINE_UNQUOTED($cf_result,1,[Define to 1 if we have type $1])
853 AC_DEFINE_UNQUOTED($1,$2,[Define to appropriate type if $1 is not declared])
856 dnl ---------------------------------------------------------------------------
857 dnl CF_CURSES_CONFIG version: 2 updated: 2006/10/29 11:06:27
859 dnl Tie together the configure-script macros for curses. It may be ncurses,
860 dnl but unless asked, we do not make a special search for ncurses. However,
861 dnl still check for the ncurses version number, for use in other macros.
862 AC_DEFUN([CF_CURSES_CONFIG],
868 dnl ---------------------------------------------------------------------------
869 dnl CF_CURSES_CPPFLAGS version: 14 updated: 2021/01/02 09:31:20
870 dnl ------------------
871 dnl Look for the curses headers.
872 AC_DEFUN([CF_CURSES_CPPFLAGS],[
874 AC_CACHE_CHECK(for extra include directories,cf_cv_curses_incdir,[
875 cf_cv_curses_incdir=no
878 if test "x$cf_cv_screen" = "xcurses_colr"
880 test -d /usr/include/curses_colr && \
881 cf_cv_curses_incdir="-I/usr/include/curses_colr"
885 if test "x$cf_cv_screen" = "xcurses_5lib"
887 test -d /usr/5lib && \
888 test -d /usr/5include && \
889 cf_cv_curses_incdir="-I/usr/5include"
894 if test "$cf_cv_curses_incdir" != no
896 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_curses_incdir)
902 dnl ---------------------------------------------------------------------------
903 dnl CF_CURSES_FUNCS version: 20 updated: 2020/12/31 20:19:42
905 dnl Curses-functions are a little complicated, since a lot of them are macros.
906 AC_DEFUN([CF_CURSES_FUNCS],
908 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
909 AC_REQUIRE([CF_XOPEN_CURSES])
910 AC_REQUIRE([CF_CURSES_TERM_H])
911 AC_REQUIRE([CF_CURSES_UNCTRL_H])
914 CF_UPPER(cf_tr_func,$cf_func)
915 AC_MSG_CHECKING(for ${cf_func})
916 CF_MSG_LOG(${cf_func})
917 AC_CACHE_VAL(cf_cv_func_$cf_func,[
918 eval cf_result='$ac_cv_func_'$cf_func
919 if test ".$cf_result" != ".no"; then
920 AC_TRY_LINK(CF__CURSES_HEAD,
923 long foo = (long)(&${cf_func});
924 fprintf(stderr, "testing linkage of $cf_func:%p\\n", (void *)foo);
925 if (foo + 1234L > 5678L)
926 ${cf_cv_main_return:-return}(foo != 0);
932 eval 'cf_cv_func_'$cf_func'="$cf_result"'
934 # use the computed/retrieved cache-value:
935 eval 'cf_result=$cf_cv_func_'$cf_func
936 AC_MSG_RESULT($cf_result)
937 if test "$cf_result" != no; then
938 AC_DEFINE_UNQUOTED(HAVE_${cf_tr_func})
942 dnl ---------------------------------------------------------------------------
943 dnl CF_CURSES_HEADER version: 6 updated: 2022/12/02 20:06:52
945 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
946 dnl variations of ncurses' installs.
948 dnl $1 = ncurses when looking for ncurses, or is empty
949 AC_DEFUN([CF_CURSES_HEADER],[
950 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
951 cf_cv_ncurses_header=none
953 ncurses.h ifelse($1,,,[$1/ncurses.h]) \
954 curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
956 AC_TRY_COMPILE([#include <${cf_header}>],
957 [initscr(); endwin()],
958 [cf_cv_ncurses_header=$cf_header; break],[])
962 if test "$cf_cv_ncurses_header" = none ; then
963 AC_MSG_ERROR(No curses header-files found)
966 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
967 AC_CHECK_HEADERS($cf_cv_ncurses_header)
969 dnl ---------------------------------------------------------------------------
970 dnl CF_CURSES_LIBS version: 45 updated: 2022/12/02 20:06:52
972 dnl Look for the curses libraries. Older curses implementations may require
973 dnl termcap/termlib to be linked as well. Call CF_CURSES_CPPFLAGS first.
974 AC_DEFUN([CF_CURSES_LIBS],[
976 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
977 AC_MSG_CHECKING(if we have identified curses libraries)
978 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
979 [initscr(); endwin()],
982 AC_MSG_RESULT($cf_result)
984 if test "$cf_result" = no ; then
987 AC_CHECK_LIB(mytinfo,tgoto,[CF_ADD_LIBS(-lmytinfo)])
990 # Looking at HPUX 10.20, the Hcurses library is the oldest (1997), cur_colr
991 # next (1998), and xcurses "newer" (2000). There is no header file for
992 # Hcurses; the subdirectory curses_colr has the headers (curses.h and
993 # term.h) for cur_colr
994 if test "x$cf_cv_screen" = "xcurses_colr"
996 AC_CHECK_LIB(cur_colr,initscr,[
997 CF_ADD_LIBS(-lcur_colr)
998 ac_cv_func_initscr=yes
1000 AC_CHECK_LIB(Hcurses,initscr,[
1001 # HP's header uses __HP_CURSES, but user claims _HP_CURSES.
1002 CF_ADD_LIBS(-lHcurses)
1003 CF_APPEND_TEXT(CPPFLAGS,-D__HP_CURSES -D_HP_CURSES)
1004 ac_cv_func_initscr=yes
1009 case `arch 2>/dev/null` in
1013 CF_ADD_LIBDIR(/lib64)
1024 if test "x$cf_cv_screen" = "xcurses_5lib"
1026 if test -d /usr/5lib ; then
1027 CF_ADD_LIBDIR(/usr/5lib)
1028 CF_ADD_LIBS(-lcurses -ltermcap)
1031 ac_cv_func_initscr=yes
1035 if test ".$ac_cv_func_initscr" != .yes ; then
1036 cf_save_LIBS="$LIBS"
1038 if test ".${cf_cv_ncurses_version:-no}" != .no
1040 cf_check_list="ncurses curses cursesX"
1042 cf_check_list="cursesX curses ncurses"
1045 # Check for library containing tgoto. Do this before curses library
1046 # because it may be needed to link the test-case for initscr.
1047 if test "x$cf_term_lib" = x
1049 AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
1050 for cf_term_lib in $cf_check_list otermcap termcap tinfo termlib unknown
1052 AC_CHECK_LIB($cf_term_lib,tgoto,[
1053 : "${cf_nculib_root:=$cf_term_lib}"
1060 # Check for library containing initscr
1061 test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
1062 if test "x$cf_curs_lib" = x
1064 for cf_curs_lib in $cf_check_list xcurses jcurses pdcurses unknown
1066 LIBS="-l$cf_curs_lib $cf_save_LIBS"
1067 if test "$cf_term_lib" = unknown || test "$cf_term_lib" = "$cf_curs_lib" ; then
1068 AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
1069 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1073 AC_MSG_RESULT($cf_result)
1074 test "$cf_result" = yes && break
1075 elif test "$cf_curs_lib" = "$cf_term_lib" ; then
1077 elif test "$cf_term_lib" != predefined ; then
1078 AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
1079 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1080 [initscr(); endwin();],
1083 LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
1084 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1089 AC_MSG_RESULT($cf_result)
1090 test "$cf_result" != error && break
1094 test "$cf_curs_lib" = unknown && AC_MSG_ERROR(no curses library found)
1099 dnl ---------------------------------------------------------------------------
1100 dnl CF_CURSES_TERM_H version: 15 updated: 2021/01/02 09:31:20
1101 dnl ----------------
1102 dnl SVr4 curses should have term.h as well (where it puts the definitions of
1103 dnl the low-level interface). This may not be true in old/broken implementations,
1104 dnl as well as in misconfigured systems (e.g., gcc configured for Solaris 2.4
1105 dnl running with Solaris 2.5.1).
1106 AC_DEFUN([CF_CURSES_TERM_H],
1108 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1110 AC_CACHE_CHECK(for term.h, cf_cv_term_header,[
1112 # If we found <ncurses/curses.h>, look for <ncurses/term.h>, but always look
1113 # for <term.h> if we do not find the variant.
1115 cf_header_list="term.h ncurses/term.h ncursesw/term.h"
1117 case "${cf_cv_ncurses_header:-curses.h}" in
1119 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`term.h
1120 cf_header_list="$cf_header_item $cf_header_list"
1124 for cf_header in $cf_header_list
1127 #include <${cf_cv_ncurses_header:-curses.h}>
1128 #include <${cf_header}>],
1129 [WINDOW *x; (void)x],
1130 [cf_cv_term_header=$cf_header
1132 [cf_cv_term_header=no])
1135 case "$cf_cv_term_header" in
1137 # If curses is ncurses, some packagers still mess it up by trying to make
1138 # us use GNU termcap. This handles the most common case.
1139 for cf_header in ncurses/term.h ncursesw/term.h
1142 #include <${cf_cv_ncurses_header:-curses.h}>
1143 #ifdef NCURSES_VERSION
1144 #include <${cf_header}>
1148 [WINDOW *x; (void)x],
1149 [cf_cv_term_header=$cf_header
1151 [cf_cv_term_header=no])
1157 case "$cf_cv_term_header" in
1159 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
1162 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
1165 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
1169 dnl ---------------------------------------------------------------------------
1170 dnl CF_CURSES_UNCTRL_H version: 8 updated: 2021/01/02 09:31:20
1171 dnl ------------------
1172 dnl Any X/Open curses implementation must have unctrl.h, but ncurses packages
1173 dnl may put it in a subdirectory (along with ncurses' other headers, of
1174 dnl course). Packages which put the headers in inconsistent locations are
1176 AC_DEFUN([CF_CURSES_UNCTRL_H],
1178 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1180 AC_CACHE_CHECK(for unctrl.h, cf_cv_unctrl_header,[
1182 # If we found <ncurses/curses.h>, look for <ncurses/unctrl.h>, but always look
1183 # for <unctrl.h> if we do not find the variant.
1185 cf_header_list="unctrl.h ncurses/unctrl.h ncursesw/unctrl.h"
1187 case "${cf_cv_ncurses_header:-curses.h}" in
1189 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`unctrl.h
1190 cf_header_list="$cf_header_item $cf_header_list"
1194 for cf_header in $cf_header_list
1197 #include <${cf_cv_ncurses_header:-curses.h}>
1198 #include <${cf_header}>],
1199 [WINDOW *x; (void)x],
1200 [cf_cv_unctrl_header=$cf_header
1202 [cf_cv_unctrl_header=no])
1206 case "$cf_cv_unctrl_header" in
1208 AC_MSG_WARN(unctrl.h header not found)
1212 case "$cf_cv_unctrl_header" in
1214 AC_DEFINE(HAVE_UNCTRL_H,1,[Define to 1 if we have unctrl.h])
1217 AC_DEFINE(HAVE_NCURSES_UNCTRL_H,1,[Define to 1 if we have ncurses/unctrl.h])
1220 AC_DEFINE(HAVE_NCURSESW_UNCTRL_H,1,[Define to 1 if we have ncursesw/unctrl.h])
1224 dnl ---------------------------------------------------------------------------
1225 dnl CF_CURSES_WACS_MAP version: 8 updated: 2021/01/04 19:45:09
1226 dnl ------------------
1227 dnl Check for likely values of wacs_map[].
1228 AC_DEFUN([CF_CURSES_WACS_MAP],
1230 AC_CACHE_CHECK(for wide alternate character set array, cf_cv_curses_wacs_map,[
1231 cf_cv_curses_wacs_map=unknown
1232 for name in wacs_map _wacs_map __wacs_map _nc_wacs _wacs_char
1235 #ifndef _XOPEN_SOURCE_EXTENDED
1236 #define _XOPEN_SOURCE_EXTENDED
1238 #include <${cf_cv_ncurses_header:-curses.h}>],
1239 [void *foo = &(${name}['k']); (void)foo],
1240 [cf_cv_curses_wacs_map=$name
1244 test "$cf_cv_curses_wacs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_WACS_ARRAY,$cf_cv_curses_wacs_map,[Define to name of (n)curses wide-character array])
1246 dnl ---------------------------------------------------------------------------
1247 dnl CF_CURSES_WACS_SYMBOLS version: 4 updated: 2021/01/04 19:45:09
1248 dnl ----------------------
1249 dnl Do a check to see if the WACS_xxx constants are defined compatibly with
1250 dnl X/Open Curses. In particular, NetBSD's implementation of the WACS_xxx
1251 dnl constants is broken since those constants do not point to cchar_t's.
1252 AC_DEFUN([CF_CURSES_WACS_SYMBOLS],
1254 AC_REQUIRE([CF_CURSES_WACS_MAP])
1256 AC_CACHE_CHECK(for wide alternate character constants, cf_cv_curses_wacs_symbols,[
1257 cf_cv_curses_wacs_symbols=no
1258 if test "$cf_cv_curses_wacs_map" != unknown
1261 #ifndef _XOPEN_SOURCE_EXTENDED
1262 #define _XOPEN_SOURCE_EXTENDED
1264 #include <${cf_cv_ncurses_header:-curses.h}>],
1265 [cchar_t *foo = WACS_PLUS;
1266 ${cf_cv_curses_wacs_map}['k'] = *WACS_PLUS; (void)foo],
1267 [cf_cv_curses_wacs_symbols=yes])
1270 #ifndef _XOPEN_SOURCE_EXTENDED
1271 #define _XOPEN_SOURCE_EXTENDED
1273 #include <${cf_cv_ncurses_header:-curses.h}>],
1274 [cchar_t *foo = WACS_PLUS; (void)foo],
1275 [cf_cv_curses_wacs_symbols=yes])
1279 test "$cf_cv_curses_wacs_symbols" != no && AC_DEFINE(CURSES_WACS_SYMBOLS,1,[Define to 1 if (n)curses supports wide-character WACS_ symbols])
1281 dnl ---------------------------------------------------------------------------
1282 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1284 dnl "dirname" is not portable, so we fake it with a shell script.
1285 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1286 dnl ---------------------------------------------------------------------------
1287 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1289 dnl You can always use "make -n" to see the actual options, but it is hard to
1290 dnl pick out/analyze warning messages when the compile-line is long.
1293 dnl ECHO_LT - symbol to control if libtool is verbose
1294 dnl ECHO_LD - symbol to prefix "cc -o" lines
1295 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1296 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
1297 dnl ECHO_CC - symbol to put before any "cc" line
1299 AC_DEFUN([CF_DISABLE_ECHO],[
1300 AC_MSG_CHECKING(if you want to see long compiling messages)
1301 CF_ARG_DISABLE(echo,
1302 [ --disable-echo do not display "compiling" commands],
1305 ECHO_LD='@echo linking [$]@;'
1306 RULE_CC='@echo compiling [$]<'
1307 SHOW_CC='@echo compiling [$]@'
1316 AC_MSG_RESULT($enableval)
1323 dnl ---------------------------------------------------------------------------
1324 dnl CF_DISABLE_LEAKS version: 9 updated: 2021/04/03 16:41:50
1325 dnl ----------------
1326 dnl Combine no-leak checks with the libraries or tools that are used for the
1328 AC_DEFUN([CF_DISABLE_LEAKS],[
1330 AC_REQUIRE([CF_WITH_DMALLOC])
1331 AC_REQUIRE([CF_WITH_DBMALLOC])
1332 AC_REQUIRE([CF_WITH_VALGRIND])
1334 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1335 AC_ARG_ENABLE(leaks,
1336 [ --disable-leaks test: free permanent memory, analyze leaks],
1337 [enable_leaks=$enableval],
1339 dnl with_no_leaks is more readable...
1340 if test "x$enable_leaks" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi
1341 AC_MSG_RESULT($with_no_leaks)
1343 if test "$enable_leaks" = no ; then
1344 AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1345 AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1348 dnl ---------------------------------------------------------------------------
1349 dnl CF_DISABLE_RPATH_HACK version: 3 updated: 2021/01/05 20:14:44
1350 dnl ---------------------
1351 dnl The rpath-hack makes it simpler to build programs, particularly with the
1352 dnl *BSD ports which may have essential libraries in unusual places. But it
1353 dnl can interfere with building an executable for the base system. Use this
1354 dnl option in that case.
1355 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1357 AC_MSG_CHECKING(if rpath-hack should be disabled)
1358 CF_ARG_DISABLE(rpath-hack,
1359 [ --disable-rpath-hack don't add rpath options for additional libraries],
1360 [enable_rpath_hack=no],
1361 [enable_rpath_hack=yes])
1362 dnl TODO - drop cf_disable_rpath_hack
1363 if test "x$enable_rpath_hack" = xno; then cf_disable_rpath_hack=yes; else cf_disable_rpath_hack=no; fi
1364 AC_MSG_RESULT($cf_disable_rpath_hack)
1366 if test "$enable_rpath_hack" = yes ; then
1370 dnl ---------------------------------------------------------------------------
1371 dnl CF_ENABLE_STRING_HACKS version: 6 updated: 2021/01/05 19:23:48
1372 dnl ----------------------
1373 dnl On a few platforms, the compiler and/or loader nags with untruthful
1374 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1375 dnl and implying that most uses of the recommended alternatives are correct.
1377 dnl Factually speaking, no one has actually counted the number of uses of these
1378 dnl functions versus the total of incorrect uses. Samples of a few thousand
1379 dnl instances are meaningless compared to the hundreds of millions of lines of
1380 dnl existing C code.
1382 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1383 dnl platforms, in implementations of varying quality. Likewise, snprintf is
1384 dnl standard - but evolved through phases, and older implementations are likely
1385 dnl to yield surprising results, as documented in manpages on various systems.
1386 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1388 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1389 AC_ARG_ENABLE(string-hacks,
1390 [ --enable-string-hacks work around bogus compiler/loader warnings],
1391 [enable_string_hacks=$enableval],
1392 [enable_string_hacks=no])
1393 AC_MSG_RESULT($enable_string_hacks)
1395 if test "x$enable_string_hacks" = "xyes"; then
1396 AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1397 AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1398 AC_CHECK_FUNC(strlcat,[
1399 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1401 AC_CHECK_LIB(bsd,strlcat,[
1403 AC_CHECK_HEADERS(bsd/string.h)
1404 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1407 AC_CHECK_FUNCS( strlcpy snprintf )
1410 dnl ---------------------------------------------------------------------------
1411 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1412 dnl ------------------
1413 dnl Configure-option to enable gcc warnings
1415 dnl $1 = extra options to add, if supported
1416 dnl $2 = option for checking attributes. By default, this is done when
1417 dnl warnings are enabled. For other values:
1418 dnl yes: always do this, e.g., to use in generated library-headers
1419 dnl no: never do this
1420 AC_DEFUN([CF_ENABLE_WARNINGS],[
1421 if test "$GCC" = yes || test "$GXX" = yes
1423 CF_FIX_WARNINGS(CFLAGS)
1424 CF_FIX_WARNINGS(CPPFLAGS)
1425 CF_FIX_WARNINGS(LDFLAGS)
1426 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1427 CF_ARG_ENABLE(warnings,
1428 [ --enable-warnings test: turn on gcc compiler warnings],
1429 [enable_warnings=yes],
1430 [enable_warnings=no])
1431 AC_MSG_RESULT($enable_warnings)
1432 if test "$enable_warnings" = "yes"
1434 ifelse($2,,[CF_GCC_ATTRIBUTES])
1437 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1440 dnl ---------------------------------------------------------------------------
1441 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1443 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
1444 dnl prefer a standard location, and use -L options only if we do not find the
1445 dnl library in the standard library location(s).
1446 dnl $1 = library name
1447 dnl $2 = library class, usually the same as library name
1449 dnl $4 = code fragment to compile/link
1450 dnl $5 = corresponding function-name
1451 dnl $6 = flag, nonnull if failure should not cause an error-exit
1453 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1454 dnl to use a -L option.
1455 AC_DEFUN([CF_FIND_LIBRARY],
1457 eval 'cf_cv_have_lib_'"$1"'=no'
1460 eval 'cf_cv_have_lib_'"$1"'=yes',[
1461 cf_save_LIBS="$LIBS"
1462 AC_MSG_CHECKING(for $5 in -l$1)
1464 AC_TRY_LINK([$3],[$4],
1466 eval 'cf_cv_have_lib_'"$1"'=yes'
1469 CF_LIBRARY_PATH(cf_search,$2)
1470 for cf_libdir in $cf_search
1472 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1473 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1474 AC_TRY_LINK([$3],[$4],
1476 eval 'cf_cv_have_lib_'"$1"'=yes'
1479 LIBS="$cf_save_LIBS"])
1483 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1485 if test "$cf_found_library" = no ; then
1486 AC_MSG_ERROR(Cannot link $1 library)
1490 dnl ---------------------------------------------------------------------------
1491 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1493 dnl Find a library (specifically the linkage used in the code fragment),
1494 dnl searching for it if it is not already in the library path.
1495 dnl See also CF_ADD_SEARCHPATH.
1497 dnl Parameters (4-on are optional):
1498 dnl $1 = headers for library entrypoint
1499 dnl $2 = code fragment for library entrypoint
1500 dnl $3 = the library name without the "-l" option or ".so" suffix.
1501 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
1502 dnl $5 = action to perform if not successful
1503 dnl $6 = module name, if not the same as the library name
1504 dnl $7 = extra libraries
1506 dnl Sets these variables:
1507 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1508 dnl $cf_cv_header_path_$3 - include-directory if needed
1509 dnl $cf_cv_library_path_$3 - library-directory if needed
1510 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1511 AC_DEFUN([CF_FIND_LINKAGE],[
1513 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1514 # will be set on completion of the AC_TRY_LINK below.
1515 cf_cv_header_path_$3=
1516 cf_cv_library_path_$3=
1518 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1520 cf_save_LIBS="$LIBS"
1522 AC_TRY_LINK([$1],[$2],[
1523 cf_cv_find_linkage_$3=yes
1524 cf_cv_header_path_$3=/usr/include
1525 cf_cv_library_path_$3=/usr/lib
1528 LIBS="-l$3 $7 $cf_save_LIBS"
1530 AC_TRY_LINK([$1],[$2],[
1531 cf_cv_find_linkage_$3=yes
1532 cf_cv_header_path_$3=/usr/include
1533 cf_cv_library_path_$3=/usr/lib
1534 cf_cv_library_file_$3="-l$3"
1536 cf_cv_find_linkage_$3=no
1537 LIBS="$cf_save_LIBS"
1539 CF_VERBOSE(find linkage for $3 library)
1540 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1542 cf_save_CPPFLAGS="$CPPFLAGS"
1543 cf_test_CPPFLAGS="$CPPFLAGS"
1545 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1546 for cf_cv_header_path_$3 in $cf_search
1548 if test -d "$cf_cv_header_path_$3" ; then
1549 CF_VERBOSE(... testing $cf_cv_header_path_$3)
1550 CPPFLAGS="$cf_save_CPPFLAGS"
1551 CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1552 AC_TRY_COMPILE([$1],[$2],[
1553 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1554 cf_cv_find_linkage_$3=maybe
1555 cf_test_CPPFLAGS="$CPPFLAGS"
1557 CPPFLAGS="$cf_save_CPPFLAGS"
1562 if test "$cf_cv_find_linkage_$3" = maybe ; then
1564 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1566 cf_save_LIBS="$LIBS"
1567 cf_save_LDFLAGS="$LDFLAGS"
1570 CPPFLAGS="$cf_test_CPPFLAGS"
1571 LIBS="-l$3 $7 $cf_save_LIBS"
1572 AC_TRY_LINK([$1],[$2],[
1573 CF_VERBOSE(... found $3 library in system)
1574 cf_cv_find_linkage_$3=yes])
1575 CPPFLAGS="$cf_save_CPPFLAGS"
1576 LIBS="$cf_save_LIBS"
1579 if test "$cf_cv_find_linkage_$3" != yes ; then
1580 CF_LIBRARY_PATH(cf_search,$3)
1581 for cf_cv_library_path_$3 in $cf_search
1583 if test -d "$cf_cv_library_path_$3" ; then
1584 CF_VERBOSE(... testing $cf_cv_library_path_$3)
1585 CPPFLAGS="$cf_test_CPPFLAGS"
1586 LIBS="-l$3 $7 $cf_save_LIBS"
1587 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1588 AC_TRY_LINK([$1],[$2],[
1589 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1590 cf_cv_find_linkage_$3=yes
1591 cf_cv_library_file_$3="-l$3"
1593 CPPFLAGS="$cf_save_CPPFLAGS"
1594 LIBS="$cf_save_LIBS"
1595 LDFLAGS="$cf_save_LDFLAGS"
1599 CPPFLAGS="$cf_save_CPPFLAGS"
1600 LDFLAGS="$cf_save_LDFLAGS"
1604 cf_cv_find_linkage_$3=no
1609 LIBS="$cf_save_LIBS"
1611 if test "$cf_cv_find_linkage_$3" = yes ; then
1613 CF_ADD_INCDIR($cf_cv_header_path_$3)
1614 CF_ADD_LIBDIR($cf_cv_library_path_$3)
1618 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1621 dnl ---------------------------------------------------------------------------
1622 dnl CF_FIX_WARNINGS version: 4 updated: 2021/12/16 18:22:31
1624 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc. Any of gcc's
1625 dnl "-Werror" flags can interfere with configure-checks. Those go into
1628 dnl $1 = variable name to repair
1629 define([CF_FIX_WARNINGS],[
1630 if test "$GCC" = yes || test "$GXX" = yes
1635 for cf_temp_scan in [$]$1
1637 case "x$cf_temp_scan" in
1639 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1642 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1645 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1649 if test "x[$]$1" != "x$cf_temp_flags"
1651 CF_VERBOSE(repairing $1: [$]$1)
1653 CF_VERBOSE(... fixed [$]$1)
1654 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1659 AC_SUBST(EXTRA_CFLAGS)
1661 dnl ---------------------------------------------------------------------------
1662 dnl CF_FUNC_CURSES_VERSION version: 9 updated: 2023/01/05 18:06:10
1663 dnl ----------------------
1664 dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
1665 dnl It's a character string "SVR4", not documented.
1666 AC_DEFUN([CF_FUNC_CURSES_VERSION],
1668 AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
1670 $ac_includes_default
1672 #include <${cf_cv_ncurses_header:-curses.h}>
1677 sprintf(temp, "%.999s\\n", curses_version());
1678 ${cf_cv_main_return:-return}(0);
1680 ,[cf_cv_func_curses_version=yes]
1681 ,[cf_cv_func_curses_version=no]
1682 ,[cf_cv_func_curses_version=unknown])
1684 test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION,1,[Define to 1 if we have curses_version function])
1686 dnl ---------------------------------------------------------------------------
1687 dnl CF_FUNC_GETTIME version: 2 updated: 2023/02/25 08:45:56
1689 dnl Check for gettimeofday or clock_gettime. In 2023, the former is still more
1690 dnl widely supported, but "deprecated" (2008), so we will use the latter if it
1691 dnl is available, to reduce compiler warnings.
1692 AC_DEFUN([CF_FUNC_GETTIME],[
1693 AC_CACHE_CHECK(for clock_gettime,cf_cv_func_clock_gettime,[
1694 AC_TRY_LINK([#include <time.h>],
1695 [struct timespec ts;
1696 int rc = clock_gettime(CLOCK_REALTIME, &ts); (void) rc; (void)ts],
1697 [cf_cv_func_clock_gettime=yes],
1698 [cf_cv_func_clock_gettime=no])
1701 if test "$cf_cv_func_clock_gettime" = yes
1703 AC_DEFINE(HAVE_CLOCK_GETTIME,1,[Define to 1 if we have clock_gettime function])
1705 AC_CHECK_FUNC(gettimeofday,
1706 AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function]),[
1708 AC_CHECK_LIB(bsd, gettimeofday,
1709 AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function])
1710 CF_ADD_LIB(bsd))])dnl CLIX: bzero, select, gettimeofday
1713 dnl ---------------------------------------------------------------------------
1714 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
1716 dnl Check for openpty() function, along with <pty.h> header. It may need the
1717 dnl "util" library as well.
1718 AC_DEFUN([CF_FUNC_OPENPTY],
1720 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1721 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1722 cf_save_LIBS="$LIBS"
1723 test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
1724 for cf_header in pty.h libutil.h util.h
1727 #include <$cf_header>
1729 int x = openpty((int *)0, (int *)0, (char *)0,
1730 (struct termios *)0, (struct winsize *)0);
1732 cf_cv_func_openpty=$cf_header
1735 cf_cv_func_openpty=no
1738 LIBS="$cf_save_LIBS"
1741 dnl ---------------------------------------------------------------------------
1742 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1743 dnl -----------------
1744 dnl Test for availability of useful gcc __attribute__ directives to quiet
1745 dnl compiler warnings. Though useful, not all are supported -- and contrary
1746 dnl to documentation, unrecognized directives cause older compilers to barf.
1747 AC_DEFUN([CF_GCC_ATTRIBUTES],
1748 [AC_REQUIRE([AC_PROG_FGREP])dnl
1749 AC_REQUIRE([CF_C11_NORETURN])dnl
1751 if test "$GCC" = yes || test "$GXX" = yes
1753 cat > conftest.i <<EOF
1755 #define GCC_PRINTF 0
1760 #ifndef GCC_NORETURN
1761 #define GCC_NORETURN /* nothing */
1764 #define GCC_UNUSED /* nothing */
1767 if test "$GCC" = yes
1769 AC_CHECKING([for $CC __attribute__ directives])
1770 cat > "conftest.$ac_ext" <<EOF
1771 #line __oline__ "${as_me:-configure}"
1773 #include "confdefs.h"
1774 #include "conftest.h"
1775 #include "conftest.i"
1777 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1779 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1782 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1784 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1786 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1787 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1788 extern GCC_NORETURN void foo(void);
1789 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1791 cf_printf_attribute=no
1792 cf_scanf_attribute=no
1793 for cf_attribute in scanf printf unused noreturn
1795 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1796 cf_directive="__attribute__(($cf_attribute))"
1797 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1799 case "$cf_attribute" in
1801 cf_printf_attribute=yes
1802 cat >conftest.h <<EOF
1803 #define GCC_$cf_ATTRIBUTE 1
1807 cf_scanf_attribute=yes
1808 cat >conftest.h <<EOF
1809 #define GCC_$cf_ATTRIBUTE 1
1813 cat >conftest.h <<EOF
1814 #define GCC_$cf_ATTRIBUTE $cf_directive
1819 if AC_TRY_EVAL(ac_compile); then
1820 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1821 cat conftest.h >>confdefs.h
1822 case "$cf_attribute" in
1824 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1827 cf_value='/* nothing */'
1828 if test "$cf_printf_attribute" != no ; then
1829 cf_value='__attribute__((format(printf,fmt,var)))'
1830 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1832 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1835 cf_value='/* nothing */'
1836 if test "$cf_scanf_attribute" != no ; then
1837 cf_value='__attribute__((format(scanf,fmt,var)))'
1838 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1840 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1843 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1849 ${FGREP-fgrep} define conftest.i >>confdefs.h
1854 dnl ---------------------------------------------------------------------------
1855 dnl CF_GCC_VERSION version: 9 updated: 2023/03/05 14:30:13
1857 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1858 dnl compatible), attempt to determine if icc/clang is actually used.
1859 AC_DEFUN([CF_GCC_VERSION],[
1860 AC_REQUIRE([AC_PROG_CC])
1862 if test "$GCC" = yes ; then
1863 AC_MSG_CHECKING(version of $CC)
1864 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^[[^(]]*([[^)]][[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1865 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1866 AC_MSG_RESULT($GCC_VERSION)
1868 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1869 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1871 dnl ---------------------------------------------------------------------------
1872 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1874 dnl Check if the compiler supports useful warning options. There's a few that
1875 dnl we don't use, simply because they're too noisy:
1877 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1878 dnl -Winline (usually not worthwhile)
1879 dnl -Wredundant-decls (system headers make this too noisy)
1880 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1881 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1882 dnl is enabled for ncurses using "--enable-const".
1886 dnl $1 is an optional list of gcc warning flags that a particular
1887 dnl application might want to use, e.g., "no-unused" for
1890 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1892 AC_DEFUN([CF_GCC_WARNINGS],
1894 AC_REQUIRE([CF_GCC_VERSION])
1895 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1896 cat > "conftest.$ac_ext" <<EOF
1897 #line __oline__ "${as_me:-configure}"
1898 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1900 if test "$INTEL_COMPILER" = yes
1902 # The "-wdXXX" options suppress warnings:
1903 # remark #1419: external declaration in primary source file
1904 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1905 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1906 # remark #193: zero used for undefined preprocessing identifier
1907 # remark #593: variable "curs_sb_left_arrow" was set but never used
1908 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1909 # remark #869: parameter "tw" was never referenced
1910 # remark #981: operands are evaluated in unspecified order
1911 # warning #279: controlling expression is constant
1913 AC_CHECKING([for $CC warning options])
1914 cf_save_CFLAGS="$CFLAGS"
1915 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1927 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1928 if AC_TRY_EVAL(ac_compile); then
1929 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1930 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1933 CFLAGS="$cf_save_CFLAGS"
1934 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1936 AC_CHECKING([for $CC warning options])
1937 cf_save_CFLAGS="$CFLAGS"
1939 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1940 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1941 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1942 for cf_opt in W Wall \
1943 Wbad-function-cast \
1946 Wdeclaration-after-statement \
1949 Wmissing-declarations \
1950 Wmissing-prototypes \
1954 Wstrict-prototypes \
1955 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1957 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1958 if AC_TRY_EVAL(ac_compile); then
1959 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1962 case "$GCC_VERSION" in
1964 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1969 case "$GCC_VERSION" in
1971 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1976 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1979 CFLAGS="$cf_save_CFLAGS"
1983 AC_SUBST(EXTRA_CFLAGS)
1985 dnl ---------------------------------------------------------------------------
1986 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
1987 dnl ----------------
1988 dnl Check for getopt's variables which are commonly defined in stdlib.h,
1989 dnl unistd.h or (nonstandard) in getopt.h
1990 AC_DEFUN([CF_GETOPT_HEADER],
1992 AC_HAVE_HEADERS(unistd.h getopt.h)
1993 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
1994 cf_cv_getopt_header=none
1995 for cf_header in stdio.h stdlib.h unistd.h getopt.h
1998 #include <$cf_header>],
1999 [int x = optind; char *y = optarg; (void)x; (void)y],
2000 [cf_cv_getopt_header=$cf_header
2004 if test "$cf_cv_getopt_header" != none ; then
2005 AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
2007 if test "$cf_cv_getopt_header" = getopt.h ; then
2008 AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
2011 dnl ---------------------------------------------------------------------------
2012 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
2014 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
2015 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
2016 dnl (or misfeature) of glibc2, which breaks portability of many applications,
2017 dnl since it is interwoven with GNU extensions.
2019 dnl Well, yes we could work around it...
2022 dnl $1 is the nominal value for _XOPEN_SOURCE
2023 AC_DEFUN([CF_GNU_SOURCE],
2025 cf_gnu_xopen_source=ifelse($1,,500,$1)
2027 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
2028 AC_TRY_COMPILE([#include <sys/types.h>],[
2029 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
2031 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
2034 # error not GNU C library
2036 [cf_cv_gnu_library=yes],
2037 [cf_cv_gnu_library=no])
2040 if test x$cf_cv_gnu_library = xyes; then
2042 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
2043 # was changed to help a little. newlib incorporated the change about 4
2045 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
2047 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2048 AC_TRY_COMPILE([#include <sys/types.h>],[
2049 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
2051 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
2054 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
2056 [cf_cv_gnu_library_219=yes],
2057 [cf_cv_gnu_library_219=no])
2061 if test "x$cf_cv_gnu_library_219" = xyes; then
2063 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
2064 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2067 #include <sys/types.h>
2069 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2072 # error GNU C library is too old
2074 [cf_cv_gnu_dftsrc_219=yes],
2075 [cf_cv_gnu_dftsrc_219=no])
2077 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2079 cf_cv_gnu_dftsrc_219=maybe
2082 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2084 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2085 AC_TRY_COMPILE([#include <sys/types.h>],[
2086 #ifndef _XOPEN_SOURCE
2087 #error expected _XOPEN_SOURCE to be defined
2089 [cf_cv_gnu_source=no],
2090 [cf_save="$CPPFLAGS"
2091 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2092 AC_TRY_COMPILE([#include <sys/types.h>],[
2093 #ifdef _XOPEN_SOURCE
2094 #error expected _XOPEN_SOURCE to be undefined
2096 [cf_cv_gnu_source=no],
2097 [cf_cv_gnu_source=yes])
2102 if test "$cf_cv_gnu_source" = yes
2104 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2105 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2106 AC_TRY_COMPILE([#include <sys/types.h>],[
2107 #ifdef _DEFAULT_SOURCE
2108 #error expected _DEFAULT_SOURCE to be undefined
2110 [cf_cv_default_source=no],
2111 [cf_cv_default_source=yes])
2113 if test "$cf_cv_default_source" = yes
2115 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2122 dnl ---------------------------------------------------------------------------
2123 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2125 dnl Construct a search-list of directories for a nonstandard header-file
2128 dnl $1 = the variable to return as result
2129 dnl $2 = the package name
2130 AC_DEFUN([CF_HEADER_PATH],
2134 # collect the current set of include-directories from compiler flags
2135 cf_header_path_list=""
2136 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2137 for cf_header_path in $CPPFLAGS $CFLAGS
2139 case "$cf_header_path" in
2141 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2142 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2143 cf_header_path_list="$cf_header_path_list [$]$1"
2149 # add the variations for the package we are looking for
2150 CF_SUBDIR_PATH($1,$2,include)
2152 test "$includedir" != NONE && \
2153 test "$includedir" != "/usr/include" && \
2154 test -d "$includedir" && {
2155 test -d "$includedir" && $1="[$]$1 $includedir"
2156 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2159 test "$oldincludedir" != NONE && \
2160 test "$oldincludedir" != "/usr/include" && \
2161 test -d "$oldincludedir" && {
2162 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2163 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2166 $1="[$]$1 $cf_header_path_list"
2168 dnl ---------------------------------------------------------------------------
2169 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2171 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2172 AC_DEFUN([CF_HELP_MESSAGE],
2173 [CF_ACVERSION_CHECK(2.53,[],[
2174 AC_DIVERT_HELP($1)])dnl
2176 dnl ---------------------------------------------------------------------------
2177 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
2178 dnl -----------------
2179 dnl If we do not have a given script, look for it in the parent directory.
2180 AC_DEFUN([CF_INHERIT_SCRIPT],
2182 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
2184 dnl ---------------------------------------------------------------------------
2185 dnl CF_INSTALL_OPTS version: 3 updated: 2023/06/03 15:17:30
2187 dnl prompt for/fill-in useful install-program options
2188 AC_DEFUN([CF_INSTALL_OPTS],
2193 CF_INSTALL_OPT_STRIP_PROG
2195 dnl ---------------------------------------------------------------------------
2196 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2197 dnl ----------------
2198 dnl Almost all "install" programs default to the current user's ownership.
2199 dnl Almost - MINIX is an exception.
2200 AC_DEFUN([CF_INSTALL_OPT_O],
2202 AC_MSG_CHECKING(if install needs to be told about ownership)
2203 case `$ac_config_guess` in
2212 AC_MSG_RESULT($with_install_o)
2213 if test "x$with_install_o" = xyes
2215 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'`"
2220 AC_SUBST(INSTALL_OPT_O)
2222 dnl ---------------------------------------------------------------------------
2223 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2224 dnl ----------------
2225 dnl Some install-programs accept a "-p" option to preserve file modification
2226 dnl timestamps. That can be useful as an install option, as well as a way to
2227 dnl avoid the need for ranlib after copying a static archive.
2228 AC_DEFUN([CF_INSTALL_OPT_P],
2230 : "${INSTALL:=install}"
2231 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2236 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2238 if test -f conftest.out/conftest.in
2240 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2241 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2242 if test -s conftest.err
2257 dnl ---------------------------------------------------------------------------
2258 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2259 dnl ----------------
2260 dnl By default, we should strip executables which are installed, but leave the
2261 dnl ability to suppress that for unit-testing.
2262 AC_DEFUN([CF_INSTALL_OPT_S],
2264 AC_MSG_CHECKING(if you want to install stripped executables)
2265 CF_ARG_DISABLE(stripping,
2266 [ --disable-stripping do not strip (debug info) installed executables],
2267 [enable_stripping=no],
2268 [enable_stripping=yes])
2269 AC_MSG_RESULT($enable_stripping)
2271 if test "$enable_stripping" = yes
2277 AC_SUBST(INSTALL_OPT_S)
2279 dnl ---------------------------------------------------------------------------
2280 dnl CF_INSTALL_OPT_STRIP_PROG version: 1 updated: 2023/06/03 15:17:30
2281 dnl -------------------------
2282 dnl Provide an option for overriding the strip program used in install "-s"
2284 dnl coreutils install provides a --strip-program option
2285 dnl FreeBSD uses STRIPBIN environment variable, while NetBSD and OpenBSD use
2286 dnl STRIP environment variable. Other versions of install do not support this.
2287 AC_DEFUN([CF_INSTALL_OPT_STRIP_PROG],
2289 AC_REQUIRE([CF_INSTALL_OPT_S])
2290 if test -n "$INSTALL_OPT_S"
2292 AC_MSG_CHECKING(if you want to specify strip-program)
2293 AC_ARG_WITH(strip-program,
2294 [ --with-strip-program=XX specify program to use when stripping in install],
2295 [with_strip_program=$withval],
2296 [with_strip_program=no])
2297 AC_MSG_RESULT($with_strip_program)
2298 if test "$with_strip_program" != no
2300 AC_MSG_CHECKING(if strip-program is supported with this installer)
2301 cf_install_program=`echo "$INSTALL" | sed -e 's%[[ ]]*[[ ]]-.%%'`
2302 check_install_strip=no
2303 if test -f "$cf_install_program"
2305 check_install_version=`"$cf_install_program" --version 2>/dev/null | head -n 1 | grep coreutils`
2306 if test -n "$check_install_version"
2308 check_install_strip="option"
2310 for check_strip_variable in STRIPBIN STRIP
2312 if strings "$cf_install_program" | grep "^$check_strip_variable[$]" >/dev/null
2314 check_install_strip="environ"
2320 AC_MSG_RESULT($check_install_strip)
2321 case "$check_install_strip" in
2323 AC_MSG_WARN($cf_install_program does not support strip program option)
2324 with_strip_program=no
2327 cat >install.tmp <<-CF_EOF
2329 STRIPBIN="$with_strip_program" \\
2330 STRIP="$with_strip_program" \\
2333 INSTALL="`pwd`/install.tmp"
2335 CF_VERBOSE(created $INSTALL)
2338 INSTALL_OPT_S="$INSTALL_OPT_S --strip-program=\"$with_strip_program\""
2343 AC_SUBST(INSTALL_OPT_S)
2345 dnl ---------------------------------------------------------------------------
2346 dnl CF_INTEL_COMPILER version: 9 updated: 2023/02/18 17:41:25
2347 dnl -----------------
2348 dnl Check if the given compiler is really the Intel compiler for Linux. It
2349 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2350 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2352 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2353 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2354 dnl the wrappers for gcc and g++ warnings.
2356 dnl $1 = GCC (default) or GXX
2357 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2358 dnl $3 = CFLAGS (default) or CXXFLAGS
2359 AC_DEFUN([CF_INTEL_COMPILER],[
2360 AC_REQUIRE([AC_CANONICAL_HOST])
2361 ifelse([$2],,INTEL_COMPILER,[$2])=no
2363 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2366 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2367 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2368 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2370 #ifdef __INTEL_COMPILER
2372 #error __INTEL_COMPILER is not defined
2374 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2375 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2377 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2378 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2383 dnl ---------------------------------------------------------------------------
2384 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2386 dnl For the given system and compiler, find the compiler flags to pass to the
2387 dnl loader to use the "rpath" feature.
2388 AC_DEFUN([CF_LD_RPATH_OPT],
2390 AC_REQUIRE([CF_CHECK_CACHE])
2393 if test "x$cf_cv_enable_rpath" != xno
2395 AC_MSG_CHECKING(for an rpath option)
2396 case "$cf_cv_system_name" in
2398 if test "$GCC" = yes; then
2399 LD_RPATH_OPT="-Wl,-rpath,"
2401 LD_RPATH_OPT="-rpath "
2404 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2405 LD_RPATH_OPT="-Wl,-rpath,"
2407 (openbsd[[2-9]].*|mirbsd*)
2408 LD_RPATH_OPT="-Wl,-rpath,"
2411 LD_RPATH_OPT="-rpath "
2414 LD_RPATH_OPT="-Wl,-rpath,"
2417 LD_RPATH_OPT="-rpath "
2425 AC_MSG_RESULT($LD_RPATH_OPT)
2427 case "x$LD_RPATH_OPT" in
2429 AC_MSG_CHECKING(if we need a space after rpath option)
2430 cf_save_LIBS="$LIBS"
2431 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2432 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2433 LIBS="$cf_save_LIBS"
2434 AC_MSG_RESULT($cf_rpath_space)
2435 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2440 dnl ---------------------------------------------------------------------------
2441 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2443 dnl Construct a search-list of directories for a nonstandard library-file
2446 dnl $1 = the variable to return as result
2447 dnl $2 = the package name
2448 AC_DEFUN([CF_LIBRARY_PATH],
2451 cf_library_path_list=""
2452 if test -n "${LDFLAGS}${LIBS}" ; then
2453 for cf_library_path in $LDFLAGS $LIBS
2455 case "$cf_library_path" in
2457 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2458 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2459 cf_library_path_list="$cf_library_path_list [$]$1"
2465 CF_SUBDIR_PATH($1,$2,lib)
2467 $1="$cf_library_path_list [$]$1"
2469 dnl ---------------------------------------------------------------------------
2470 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2472 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2473 dnl acts as a placeholder.
2475 dnl The ".PHONY" feature was proposed in 2011 here
2476 dnl https://www.austingroupbugs.net/view.php?id=523
2477 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2479 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2480 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2482 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2483 dnl date unspecified).
2485 dnl + It was adopted in NetBSD make in June 1995.
2487 dnl + The other BSD make programs are derived from the NetBSD make (and for
2488 dnl that reason are not actually different "implementations").
2490 dnl + Some features of NetBSD make were actually adapted from pmake, which
2491 dnl began as a modified GNU make starting in 1993.
2493 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2494 dnl GNU make extension, but is less well known than the BSD make.
2495 AC_DEFUN([CF_MAKE_PHONY],[
2496 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2499 mkdir conftest || exit 1
2501 cat >makefile <<'CF_EOF'
2505 @echo "** making [$]@ [$](DATA)"
2507 @echo "** making [$]@ [$](DATA)"
2509 @echo "** making [$]@ [$](DATA)"
2510 echo [$](DATA) > [$]@
2512 @echo "** making [$]@ [$](DATA)"
2513 echo [$](DATA) > [$]@
2515 for cf_data in 1 2 3
2517 ${MAKE:-make} always DATA=$cf_data
2518 ${MAKE:-make} once DATA=$cf_data
2519 ${MAKE:-make} -t always once
2520 if test -f always ; then
2521 echo "no (case 1)" > ../conftest.tmp
2522 elif test ! -f always.out ; then
2523 echo "no (case 2)" > ../conftest.tmp
2524 elif test ! -f once.out ; then
2525 echo "no (case 3)" > ../conftest.tmp
2526 elif ! cmp -s always.out once.out ; then
2527 echo "no (case 4)" > ../conftest.tmp
2528 diff always.out once.out
2530 cf_check="`cat always.out`"
2531 if test "x$cf_check" != "x$cf_data" ; then
2532 echo "no (case 5)" > ../conftest.tmp
2534 echo yes > ../conftest.tmp
2542 cf_cv_make_PHONY="`cat conftest.tmp`"
2547 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2548 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2549 AC_SUBST(MAKE_NO_PHONY)
2550 AC_SUBST(MAKE_PHONY)
2552 dnl ---------------------------------------------------------------------------
2553 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2555 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2556 dnl a monocase filesystem.
2557 AC_DEFUN([CF_MAKE_TAGS],[
2558 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2560 AC_CHECK_PROGS(CTAGS, exctags ctags)
2561 AC_CHECK_PROGS(ETAGS, exetags etags)
2563 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2565 if test "$cf_cv_mixedcase" = yes ; then
2566 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2571 if test "$MAKE_UPPER_TAGS" = yes ; then
2577 if test "$MAKE_LOWER_TAGS" = yes ; then
2586 AC_SUBST(MAKE_UPPER_TAGS)
2587 AC_SUBST(MAKE_LOWER_TAGS)
2589 dnl ---------------------------------------------------------------------------
2590 dnl CF_MATH_LIB version: 11 updated: 2022/07/27 19:01:48
2592 dnl Checks for libraries. At least one UNIX system, Apple Macintosh
2593 dnl Rhapsody 5.5, does not have -lm. We cannot use the simpler
2594 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
2595 AC_DEFUN([CF_MATH_LIB],
2597 AC_CACHE_CHECK(if -lm needed for math functions,
2604 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2605 [cf_cv_need_libm=no],
2606 [cf_cv_need_libm=yes])])
2608 if test "$cf_cv_need_libm" = yes
2611 cf_save_LIBS="$LIBS"
2613 AC_CACHE_CHECK(if -lm is available for math functions,
2620 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2621 [cf_cv_have_libm=yes],
2622 [cf_cv_have_libm=no])])
2623 LIBS="$cf_save_LIBS"
2625 if test "$cf_cv_have_libm" = yes
2627 ifelse($1,,[CF_ADD_LIB(m)],[$1=-lm])
2633 if test "$cf_cv_have_libm" = yes
2635 AC_DEFINE(HAVE_MATH_FUNCS,1,[Define to 1 if math functions are available])
2638 dnl ---------------------------------------------------------------------------
2639 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2640 dnl ----------------------
2641 dnl Check if the file-system supports mixed-case filenames. If we're able to
2642 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2643 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2645 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2646 if test "$cross_compiling" = yes ; then
2647 case "$target_alias" in
2648 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2656 rm -f conftest CONFTEST
2658 if test -f CONFTEST ; then
2663 rm -f conftest CONFTEST
2666 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2668 dnl ---------------------------------------------------------------------------
2669 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2671 dnl Write a debug message to config.log, along with the line number in the
2672 dnl configure script.
2673 AC_DEFUN([CF_MSG_LOG],[
2674 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2676 dnl ---------------------------------------------------------------------------
2677 dnl CF_NCURSES_CC_CHECK version: 6 updated: 2023/02/18 17:47:58
2678 dnl -------------------
2679 dnl Check if we can compile with ncurses' header file
2680 dnl $1 is the cache variable to set
2681 dnl $2 is the header-file to include
2682 dnl $3 is the root name (ncurses or ncursesw)
2683 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2685 ]ifelse($3,ncursesw,[
2686 #define _XOPEN_SOURCE_EXTENDED
2687 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2688 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2691 #ifdef NCURSES_VERSION
2692 ]ifelse($3,ncursesw,[
2694 #error WACS_BSSB is not defined
2697 printf("%s\\n", NCURSES_VERSION);
2702 #error __NCURSES_H is not defined
2709 dnl ---------------------------------------------------------------------------
2710 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2711 dnl -----------------
2712 dnl Tie together the configure-script macros for ncurses, preferring these in
2714 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2715 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2716 dnl c) just plain libraries
2718 dnl $1 is the root library name (default: "ncurses")
2719 AC_DEFUN([CF_NCURSES_CONFIG],[
2720 AC_REQUIRE([CF_PKG_CONFIG])
2721 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2722 cf_have_ncuconfig=no
2724 if test "x${PKG_CONFIG:=none}" != xnone; then
2725 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2726 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2729 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2730 cf_have_ncuconfig=unknown
2732 cf_save_CFLAGS="$CFLAGS"
2733 cf_save_CPPFLAGS="$CPPFLAGS"
2734 cf_save_LIBS="$LIBS"
2736 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2737 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2739 # while -W for passing linker flags is prevalent, it is not "standard".
2740 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2741 # incompatible _and_ non-standard -W option which gives an error. Work
2742 # around that pitfall.
2743 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2745 CF_ADD_CFLAGS($cf_pkg_cflags)
2746 CF_ADD_LIBS($cf_pkg_libs)
2748 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2749 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2750 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2752 { const char *xx = curses_version(); return (xx == 0); }],
2753 [cf_test_ncuconfig=yes],
2754 [cf_test_ncuconfig=no],
2755 [cf_test_ncuconfig=maybe])],
2756 [cf_test_ncuconfig=no])
2758 CFLAGS="$cf_save_CFLAGS"
2759 CPPFLAGS="$cf_save_CPPFLAGS"
2760 LIBS="$cf_save_LIBS"
2762 if test "x$cf_test_ncuconfig" != xyes; then
2763 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2764 cf_pkg_cflags="$cf_temp"
2765 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2766 cf_pkg_libs="$cf_temp"
2771 CF_APPEND_CFLAGS($cf_pkg_cflags)
2772 CF_ADD_LIBS($cf_pkg_libs)
2774 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2775 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2776 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2778 { const char *xx = curses_version(); return (xx == 0); }],
2779 [cf_have_ncuconfig=yes],
2780 [cf_have_ncuconfig=no],
2781 [cf_have_ncuconfig=maybe])],
2782 [cf_have_ncuconfig=no])
2783 AC_MSG_RESULT($cf_have_ncuconfig)
2784 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2785 if test "$cf_have_ncuconfig" != "yes"
2787 CPPFLAGS="$cf_save_CPPFLAGS"
2788 LIBS="$cf_save_LIBS"
2789 NCURSES_CONFIG_PKG=none
2791 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2792 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2798 NCURSES_CONFIG_PKG=none
2801 NCURSES_CONFIG_PKG=none
2804 if test "x$cf_have_ncuconfig" = "xno"; then
2805 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2807 CF_ACVERSION_CHECK(2.52,
2808 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2809 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2811 if test "$NCURSES_CONFIG" != none ; then
2813 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
2814 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2816 # even with config script, some packages use no-override for curses.h
2817 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2819 dnl like CF_NCURSES_CPPFLAGS
2820 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2822 dnl like CF_NCURSES_LIBS
2823 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2824 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2826 dnl like CF_NCURSES_VERSION
2827 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2831 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2832 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2839 dnl ---------------------------------------------------------------------------
2840 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2841 dnl -------------------
2842 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2843 dnl the CPPFLAGS variable so we can include its header.
2845 dnl The header files may be installed as either curses.h, or ncurses.h (would
2846 dnl be obsolete, except that some packagers prefer this name to distinguish it
2847 dnl from a "native" curses implementation). If not installed for overwrite,
2848 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2849 dnl /usr/include/ncurses), but someone may have installed overwriting the
2850 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2851 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2854 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2855 dnl is already in the include-path, don't even bother with this, since we cannot
2856 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2858 dnl The optional parameter gives the root name of the library, in case it is
2859 dnl not installed as the default curses library. That is how the
2860 dnl wide-character version of ncurses is installed.
2861 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2862 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2864 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2865 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2867 test -n "$cf_cv_curses_dir" && \
2868 test "$cf_cv_curses_dir" != "no" && { \
2869 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2872 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2873 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2874 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2875 for cf_header in $cf_header_list
2877 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2878 test "$cf_cv_ncurses_h" != no && break
2885 # some applications need this, but should check for NCURSES_VERSION
2886 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2890 dnl ---------------------------------------------------------------------------
2891 dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
2892 dnl --------------------
2893 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
2894 dnl may provide these functions. Define the symbol if it is not defined, and
2896 AC_DEFUN([CF_NCURSES_EXT_FUNCS],
2898 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
2900 #include <${cf_cv_ncurses_header:-curses.h}>],
2902 int x = NCURSES_EXT_FUNCS
2903 ],[cf_cv_ncurses_ext_funcs=defined],[
2905 #include <${cf_cv_ncurses_header:-curses.h}>],
2907 (void) assume_default_colors (0, 0);
2908 (void) curses_version ();
2909 (void) define_key (0, 0);
2910 (void) is_term_resized (0, 0);
2911 (void) key_defined (0);
2912 (void) keybound (0, 0);
2913 (void) keyok (0, 0);
2914 (void) resize_term (0, 0);
2915 (void) resizeterm (0, 0);
2916 (void) use_default_colors ();
2917 (void) use_extended_names (0);
2918 (void) wresize (0, 0, 0);],
2919 [cf_cv_ncurses_ext_funcs=yes],
2920 [cf_cv_ncurses_ext_funcs=no])
2923 test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
2925 dnl ---------------------------------------------------------------------------
2926 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2927 dnl -----------------
2928 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2929 dnl variations of ncurses' installs.
2931 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2932 AC_DEFUN([CF_NCURSES_HEADER],[
2934 if test "$cf_cv_ncurses_h" != no ; then
2935 cf_cv_ncurses_header=$cf_cv_ncurses_h
2938 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2939 test -n "$verbose" && echo
2940 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2941 test -n "$verbose" && echo "search path $cf_search"
2942 cf_save2_CPPFLAGS="$CPPFLAGS"
2943 for cf_incdir in $cf_search
2945 CF_ADD_INCDIR($cf_incdir)
2950 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2951 if test "$cf_cv_ncurses_h2" != no ; then
2952 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2953 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2956 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2958 CPPFLAGS="$cf_save2_CPPFLAGS"
2959 test "$cf_cv_ncurses_h2" != no && break
2961 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2964 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2965 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
2966 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
2967 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
2969 CF_ADD_INCDIR($cf_1st_incdir)
2973 # Set definitions to allow ifdef'ing for ncurses.h
2975 case "$cf_cv_ncurses_header" in
2977 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2981 case "$cf_cv_ncurses_header" in
2982 (ncurses/curses.h|ncurses/ncurses.h)
2983 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2985 (ncursesw/curses.h|ncursesw/ncurses.h)
2986 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2991 dnl ---------------------------------------------------------------------------
2992 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
2994 dnl Look for the ncurses library. This is a little complicated on Linux,
2995 dnl because it may be linked with the gpm (general purpose mouse) library.
2996 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2997 dnl unusable with ncurses. However, we don't want to link with gpm unless
2998 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2999 dnl and the linker will record a dependency.
3001 dnl The optional parameter gives the root name of the library, in case it is
3002 dnl not installed as the default curses library. That is how the
3003 dnl wide-character version of ncurses is installed.
3004 AC_DEFUN([CF_NCURSES_LIBS],
3005 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
3007 cf_nculib_root=ifelse($1,,ncurses,$1)
3008 # This works, except for the special case where we find gpm, but
3009 # ncurses is in a nonstandard location via $LIBS, and we really want
3012 cf_ncurses_SAVE="$LIBS"
3013 AC_CHECK_LIB(gpm,Gpm_Open,
3014 [AC_CHECK_LIB(gpm,initscr,
3015 [LIBS="$cf_ncurses_SAVE"],
3016 [cf_ncurses_LIBS="-lgpm"])])
3020 # This is only necessary if you are linking against an obsolete
3021 # version of ncurses (but it should do no harm, since it is static).
3022 if test "$cf_nculib_root" = ncurses ; then
3023 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
3028 CF_ADD_LIBS($cf_ncurses_LIBS)
3030 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
3032 CF_ADD_LIBS(-l$cf_nculib_root)
3034 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
3035 [#include <${cf_cv_ncurses_header:-curses.h}>],
3040 if test -n "$cf_ncurses_LIBS" ; then
3041 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
3042 cf_ncurses_SAVE="$LIBS"
3043 for p in $cf_ncurses_LIBS ; do
3044 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
3045 if test "$q" != "$LIBS" ; then
3049 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
3050 [initscr(); mousemask(0,0); tigetstr((char *)0);],
3051 [AC_MSG_RESULT(yes)],
3053 LIBS="$cf_ncurses_SAVE"])
3056 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
3057 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
3059 dnl ---------------------------------------------------------------------------
3060 dnl CF_NCURSES_PTHREADS version: 2 updated: 2016/04/22 05:07:41
3061 dnl -------------------
3062 dnl Use this followup check to ensure that we link with pthreads if ncurses
3064 AC_DEFUN([CF_NCURSES_PTHREADS],[
3065 : ${cf_nculib_root:=ifelse($1,,ncurses,$1)}
3066 AC_CHECK_LIB($cf_nculib_root,_nc_init_pthreads,
3067 cf_cv_ncurses_pthreads=yes,
3068 cf_cv_ncurses_pthreads=no)
3069 if test "$cf_cv_ncurses_pthreads" = yes
3071 CF_ADD_LIBS(-lpthread)
3074 dnl ---------------------------------------------------------------------------
3075 dnl CF_NCURSES_VERSION version: 17 updated: 2023/01/05 18:54:02
3076 dnl ------------------
3077 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
3078 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
3079 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
3080 AC_DEFUN([CF_NCURSES_VERSION],
3082 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
3083 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
3084 cf_cv_ncurses_version=no
3086 rm -f "$cf_tempfile"
3088 $ac_includes_default
3090 #include <${cf_cv_ncurses_header:-curses.h}>
3094 FILE *fp = fopen("$cf_tempfile", "w");
3095 #ifdef NCURSES_VERSION
3096 # ifdef NCURSES_VERSION_PATCH
3097 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3099 fprintf(fp, "%s\\n", NCURSES_VERSION);
3103 fprintf(fp, "old\\n");
3108 ${cf_cv_main_return:-return}(0);
3110 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3112 # This will not work if the preprocessor splits the line after the
3113 # Autoconf token. The 'unproto' program does that.
3114 cat > "conftest.$ac_ext" <<EOF
3115 #include <${cf_cv_ncurses_header:-curses.h}>
3117 #ifdef NCURSES_VERSION
3118 Autoconf NCURSES_VERSION
3126 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3128 if test -f conftest.out ; then
3129 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3130 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3134 rm -f "$cf_tempfile"
3136 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3138 dnl ---------------------------------------------------------------------------
3139 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
3140 dnl ----------------------
3141 dnl Check for ncurses "wrap-prefix" used for public variables which have been
3142 dnl wrapped with a function to help with concurrency control.
3143 AC_DEFUN([CF_NCURSES_WRAP_PREFIX],
3145 AC_MSG_CHECKING(for ncurses wrap-prefix)
3146 AC_ARG_WITH(ncurses-wrap-prefix,
3147 [ --with-ncurses-wrap-prefix naming-prefix for ncurses wrapped-variables],
3148 [NCURSES_WRAP_PREFIX=$withval],
3149 [NCURSES_WRAP_PREFIX=_nc_])
3150 AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
3152 AC_SUBST(NCURSES_WRAP_PREFIX)
3154 dnl ---------------------------------------------------------------------------
3155 dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
3156 dnl ----------------
3157 dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
3158 dnl Some workarounds are needed in client programs to allow them to compile.
3159 AC_DEFUN([CF_NETBSD_FORM_H],[
3160 AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
3162 #include <${cf_cv_ncurses_header:-curses.h}>
3166 int y = current_field(form)->cursor_ypos;
3167 int x = current_field(form)->cursor_xpos;
3168 ],[cf_cv_netbsd_form_h=yes
3169 ],[cf_cv_netbsd_form_h=no])
3172 test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
3174 dnl ---------------------------------------------------------------------------
3175 dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
3176 dnl ----------------
3177 dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
3178 dnl Some workarounds are needed in client programs to allow them to compile.
3179 AC_DEFUN([CF_NETBSD_MENU_H],[
3180 AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
3182 #include <${cf_cv_ncurses_header:-curses.h}>
3186 int y = menu->max_item_width;
3187 ],[cf_cv_netbsd_menu_h=yes
3188 ],[cf_cv_netbsd_menu_h=no])
3191 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])
3193 dnl ---------------------------------------------------------------------------
3194 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
3195 dnl ------------------
3196 dnl see CF_WITH_NO_LEAKS
3198 dnl $1 = option/name
3200 dnl $3 = symbol to define if the option is set
3201 dnl $4 = additional actions to take if the option is set
3202 AC_DEFUN([CF_NO_LEAKS_OPTION],[
3203 AC_MSG_CHECKING(if you want to use $1 for testing)
3206 [case "x$withval" in
3209 : "${with_cflags:=-g}"
3210 : "${enable_leaks:=no}"
3212 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
3218 AC_MSG_RESULT(${with_$1:-no})
3220 case ".$with_cflags" in
3232 dnl ---------------------------------------------------------------------------
3233 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3235 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3236 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3237 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3238 dnl delayed evaluation of those symbols.
3239 AC_DEFUN([CF_PATH_SYNTAX],[
3240 if test "x$prefix" != xNONE; then
3241 cf_path_syntax="$prefix"
3243 cf_path_syntax="$ac_default_prefix"
3247 (.\[$]\(*\)*|.\'*\'*)
3251 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3253 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3257 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3262 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3265 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3269 dnl ---------------------------------------------------------------------------
3270 dnl CF_PDCURSES_X11 version: 15 updated: 2021/01/02 09:31:20
3272 dnl Configure for PDCurses' X11 library
3273 AC_DEFUN([CF_PDCURSES_X11],[
3274 AC_REQUIRE([CF_X_ATHENA])
3276 CF_ACVERSION_CHECK(2.52,
3277 [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
3278 [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
3280 if test "$XCURSES_CONFIG" != none ; then
3282 CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
3283 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
3285 cf_cv_lib_XCurses=yes
3289 LDFLAGS="$LDFLAGS $X_LIBS"
3290 CF_CHECK_CFLAGS($X_CFLAGS)
3291 AC_CHECK_LIB(X11,XOpenDisplay,
3292 [CF_ADD_LIBS(-lX11)],,
3293 [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
3294 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
3295 CF_ADD_LIBS(-lXCurses)
3297 #include <xcurses.h>
3298 char *XCursesProgramName = "test";
3300 [cf_cv_lib_XCurses=yes],
3301 [cf_cv_lib_XCurses=no])
3306 if test "$cf_cv_lib_XCurses" = yes ; then
3307 AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
3308 AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
3309 AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
3311 AC_MSG_ERROR(Cannot link with XCurses)
3314 dnl ---------------------------------------------------------------------------
3315 dnl CF_PKG_CONFIG version: 13 updated: 2023/10/28 11:59:01
3317 dnl Check for the package-config program, unless disabled by command-line.
3319 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3320 AC_DEFUN([CF_PKG_CONFIG],
3322 AC_MSG_CHECKING(if you want to use pkg-config)
3323 AC_ARG_WITH(pkg-config,
3324 [[ --with-pkg-config[=CMD] enable/disable use of pkg-config and its name CMD]],
3325 [cf_pkg_config=$withval],
3326 [cf_pkg_config=yes])
3327 AC_MSG_RESULT($cf_pkg_config)
3329 case "$cf_pkg_config" in
3334 CF_ACVERSION_CHECK(2.52,
3335 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3336 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3343 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3344 if test "$PKG_CONFIG" != none ; then
3345 CF_PATH_SYNTAX(PKG_CONFIG)
3346 elif test "x$cf_pkg_config" != xno ; then
3347 AC_MSG_WARN(pkg-config is not installed)
3350 AC_SUBST(PKG_CONFIG)
3352 dnl ---------------------------------------------------------------------------
3353 dnl CF_POSIX_C_SOURCE version: 12 updated: 2023/02/18 17:41:25
3354 dnl -----------------
3355 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3357 dnl POSIX.1-1990 _POSIX_SOURCE
3358 dnl POSIX.1-1990 and _POSIX_SOURCE and
3359 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3361 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3362 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3363 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3366 dnl $1 is the nominal value for _POSIX_C_SOURCE
3367 AC_DEFUN([CF_POSIX_C_SOURCE],
3368 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3370 if test "$cf_cv_posix_visible" = no; then
3372 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3374 cf_save_CFLAGS="$CFLAGS"
3375 cf_save_CPPFLAGS="$CPPFLAGS"
3377 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3378 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3380 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3381 CF_MSG_LOG(if the symbol is already defined go no further)
3382 AC_TRY_COMPILE([#include <sys/types.h>],[
3383 #ifndef _POSIX_C_SOURCE
3384 #error _POSIX_C_SOURCE is not defined
3386 [cf_cv_posix_c_source=no],
3387 [cf_want_posix_source=no
3388 case .$cf_POSIX_C_SOURCE in
3390 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3393 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3394 cf_want_posix_source=yes
3397 cf_want_posix_source=yes
3400 if test "$cf_want_posix_source" = yes ; then
3401 AC_TRY_COMPILE([#include <sys/types.h>],[
3402 #ifdef _POSIX_SOURCE
3403 #error _POSIX_SOURCE is defined
3405 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3407 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3408 CFLAGS="$cf_trim_CFLAGS"
3409 CPPFLAGS="$cf_trim_CPPFLAGS"
3410 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3411 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3412 AC_TRY_COMPILE([#include <sys/types.h>],[
3413 #ifndef _POSIX_C_SOURCE
3414 #error _POSIX_C_SOURCE is not defined
3416 [cf_cv_posix_c_source=no])
3417 CFLAGS="$cf_save_CFLAGS"
3418 CPPFLAGS="$cf_save_CPPFLAGS"
3422 if test "$cf_cv_posix_c_source" != no ; then
3423 CFLAGS="$cf_trim_CFLAGS"
3424 CPPFLAGS="$cf_trim_CPPFLAGS"
3425 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3428 fi # cf_cv_posix_visible
3431 dnl ---------------------------------------------------------------------------
3432 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3433 dnl ----------------
3434 dnl POSIX documents test-macros which an application may set before any system
3435 dnl headers are included to make features available.
3437 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3438 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3439 dnl recent features visible in the system header files unless the application
3440 dnl overrides the corresponding test-macros. Doing that introduces portability
3443 dnl This macro makes a special check for the symbols used for this, to avoid a
3444 dnl conflicting definition.
3445 AC_DEFUN([CF_POSIX_VISIBLE],
3447 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3448 AC_TRY_COMPILE([#include <stdio.h>],[
3449 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3450 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3451 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3452 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3453 #error conflicting symbols found
3455 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3458 dnl ---------------------------------------------------------------------------
3459 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3461 dnl Append definitions and rules for the given programs to the subdirectory
3462 dnl Makefiles, and the recursion rule for the top-level Makefile.
3465 dnl $1 = script to run
3466 dnl $2 = list of subdirectories
3470 AC_DEFUN([CF_PRG_RULES],
3474 if test ! -d "$srcdir/$cf_dir" ; then
3476 elif test -f "$srcdir/$cf_dir/programs" ; then
3477 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3482 dnl ---------------------------------------------------------------------------
3483 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3485 dnl standard check for CC, plus followup sanity checks
3486 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3487 AC_DEFUN([CF_PROG_CC],[
3488 CF_ACVERSION_CHECK(2.53,
3489 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3490 AC_REQUIRE([AC_PROG_CC])],
3492 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3494 CF_ACVERSION_CHECK(2.52,
3499 dnl ---------------------------------------------------------------------------
3500 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3502 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3503 dnl misc/tabset install won't work properly. Usually this happens only when
3504 dnl using the fallback mkinstalldirs script
3505 AC_DEFUN([CF_PROG_INSTALL],
3511 CF_DIRNAME(cf_dir,$INSTALL)
3512 test -z "$cf_dir" && cf_dir=.
3513 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3517 dnl ---------------------------------------------------------------------------
3518 dnl CF_PROG_LINT version: 5 updated: 2022/08/20 15:44:13
3520 AC_DEFUN([CF_PROG_LINT],
3522 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3524 (xcppcheck|x*/cppcheck)
3525 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3531 dnl ---------------------------------------------------------------------------
3532 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3533 dnl ----------------
3534 dnl Remove a given option from CFLAGS/CPPFLAGS
3535 dnl $1 = option to remove
3536 dnl $2 = variable to update
3537 dnl $3 = nonempty to allow verbose message
3538 define([CF_REMOVE_CFLAGS],
3540 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3543 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3544 test "[$]$2" != "$cf_old_cflag" || break
3545 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3549 dnl ---------------------------------------------------------------------------
3550 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3551 dnl ----------------
3552 dnl Remove all -U and -D options that refer to the given symbol from a list
3553 dnl of C compiler options. This works around the problem that not all
3554 dnl compilers process -U and -D options from left-to-right, so a -U option
3555 dnl cannot be used to cancel the effect of a preceding -D option.
3557 dnl $1 = target (which could be the same as the source variable)
3558 dnl $2 = source (including '$')
3559 dnl $3 = symbol to remove
3560 define([CF_REMOVE_DEFINE],
3563 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3564 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3566 dnl ---------------------------------------------------------------------------
3567 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3568 dnl ---------------------
3569 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3570 dnl $1 = name of current macro
3571 define([CF_RESTORE_XTRA_FLAGS],
3573 LIBS="$cf_save_LIBS_$1"
3574 CFLAGS="$cf_save_CFLAGS_$1"
3575 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3577 dnl ---------------------------------------------------------------------------
3578 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3580 AC_DEFUN([CF_RPATH_HACK],
3581 [AC_REQUIRE([AC_PROG_FGREP])dnl
3582 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3584 AC_MSG_CHECKING(for updated LDFLAGS)
3585 if test -n "$LD_RPATH_OPT" ; then
3586 AC_MSG_RESULT(maybe)
3588 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3589 cf_rpath_list="/usr/lib /lib"
3590 if test "$cf_ldd_prog" != no
3594 AC_TRY_LINK([#include <stdio.h>],
3596 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3597 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3599 # If we passed the link-test, but get a "not found" on a given library,
3600 # this could be due to inept reconfiguration of gcc to make it only
3601 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3602 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3603 # /usr/local libraries.
3604 if test -n "$cf_rpath_oops"
3606 for cf_rpath_src in $cf_rpath_oops
3608 for cf_rpath_dir in \
3613 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3615 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3616 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3624 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3626 CF_RPATH_HACK_2(LDFLAGS)
3627 CF_RPATH_HACK_2(LIBS)
3629 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3633 AC_SUBST(EXTRA_LDFLAGS)
3635 dnl ---------------------------------------------------------------------------
3636 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3638 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3639 dnl EXTRA_LDFLAGS for each -L option found.
3641 dnl $cf_rpath_list contains a list of directories to ignore.
3643 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3644 dnl but LIBS often has misplaced -L options.
3645 AC_DEFUN([CF_RPATH_HACK_2],
3647 CF_VERBOSE(...checking $1 [$]$1)
3650 for cf_rpath_src in [$]$1
3652 case "$cf_rpath_src" in
3655 # check if this refers to a directory which we will ignore
3657 if test -n "$cf_rpath_list"
3659 for cf_rpath_item in $cf_rpath_list
3661 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3669 if test "$cf_rpath_skip" = no
3671 # transform the option
3672 if test "$LD_RPATH_OPT" = "-R " ; then
3673 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3675 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3678 # if we have not already added this, add it now
3679 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3680 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3682 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3683 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3688 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3692 CF_VERBOSE(...checked $1 [$]$1)
3693 AC_SUBST(EXTRA_LDFLAGS)
3695 dnl ---------------------------------------------------------------------------
3696 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3697 dnl ------------------
3698 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3699 dnl and libraries which do not update those variables.
3701 dnl $1 = name of current macro
3702 define([CF_SAVE_XTRA_FLAGS],
3704 cf_save_LIBS_$1="$LIBS"
3705 cf_save_CFLAGS_$1="$CFLAGS"
3706 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3707 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3708 for cf_X_CFLAGS in $X_CFLAGS
3710 case "x$cf_X_CFLAGS" in
3712 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3715 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3720 dnl ---------------------------------------------------------------------------
3721 dnl CF_SIGWINCH version: 7 updated: 2023/02/18 17:41:25
3723 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3724 dnl programs need this test).
3726 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3727 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3728 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3729 dnl break that part of the interface as well.
3730 AC_DEFUN([CF_SIGWINCH],
3732 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3734 #include <sys/types.h>
3735 #include <sys/signal.h>
3736 ],[int x = SIGWINCH; (void)x],
3737 [cf_cv_define_sigwinch=yes],
3739 #undef _XOPEN_SOURCE
3740 #undef _POSIX_SOURCE
3741 #undef _POSIX_C_SOURCE
3742 #include <sys/types.h>
3743 #include <sys/signal.h>
3744 ],[int x = SIGWINCH; (void)x],
3745 [cf_cv_define_sigwinch=maybe],
3746 [cf_cv_define_sigwinch=no])
3750 if test "$cf_cv_define_sigwinch" = maybe ; then
3751 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3752 cf_cv_fixup_sigwinch=unknown
3754 while test "$cf_sigwinch" != 1
3757 #undef _XOPEN_SOURCE
3758 #undef _POSIX_SOURCE
3759 #undef _POSIX_C_SOURCE
3760 #include <sys/types.h>
3761 #include <sys/signal.h>
3763 #if SIGWINCH != $cf_sigwinch
3764 #error SIGWINCH is not $cf_sigwinch
3766 int x = SIGWINCH; (void)x],
3767 [cf_cv_fixup_sigwinch=$cf_sigwinch
3770 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3774 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3775 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3779 dnl ---------------------------------------------------------------------------
3780 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3782 dnl signal handler, but there are some gcc dependencies in that recommendation.
3784 AC_DEFUN([CF_SIG_ATOMIC_T],
3786 AC_MSG_CHECKING(for signal global datatype)
3787 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3789 "volatile sig_atomic_t" \
3794 #include <sys/types.h>
3800 static void handler(int sig)
3805 [signal(SIGINT, handler);
3807 [cf_cv_sig_atomic_t=$cf_type],
3808 [cf_cv_sig_atomic_t=no])
3809 test "$cf_cv_sig_atomic_t" != no && break
3812 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3813 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3815 dnl ---------------------------------------------------------------------------
3816 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3818 dnl Construct a search-list for a nonstandard header/lib-file
3819 dnl $1 = the variable to return as result
3820 dnl $2 = the package name
3821 dnl $3 = the subdirectory, e.g., bin, include or lib
3822 AC_DEFUN([CF_SUBDIR_PATH],
3826 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3828 for cf_subdir_prefix in \
3836 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3839 dnl ---------------------------------------------------------------------------
3840 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3841 dnl ------------------
3842 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3843 dnl older SCO configurations.
3844 AC_DEFUN([CF_SYS_TIME_SELECT],
3846 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3847 AC_CACHE_VAL(cf_cv_sys_time_select,[
3849 #include <sys/types.h>
3850 #ifdef HAVE_SYS_TIME_H
3851 #include <sys/time.h>
3853 #ifdef HAVE_SYS_SELECT_H
3854 #include <sys/select.h>
3856 ],[],[cf_cv_sys_time_select=yes],
3857 [cf_cv_sys_time_select=no])
3859 AC_MSG_RESULT($cf_cv_sys_time_select)
3860 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3862 dnl ---------------------------------------------------------------------------
3863 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3865 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3866 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3867 dnl but some packagers change this, breaking various applications.
3868 AC_DEFUN([CF_TERM_HEADER],[
3869 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3870 case "${cf_cv_ncurses_header}" in
3871 (*/ncurses.h|*/ncursesw.h)
3872 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3875 cf_term_header=term.h
3879 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3881 AC_TRY_COMPILE([#include <stdio.h>
3882 #include <${cf_cv_ncurses_header:-curses.h}>
3884 ],[int x = auto_left_margin; (void)x],[
3885 cf_cv_term_header="$cf_test"],[
3886 cf_cv_term_header=unknown
3888 test "$cf_cv_term_header" != unknown && break
3892 # Set definitions to allow ifdef'ing to accommodate subdirectories
3894 case "$cf_cv_term_header" in
3896 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3900 case "$cf_cv_term_header" in
3902 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3905 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3909 dnl ---------------------------------------------------------------------------
3910 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3912 dnl Define a top_builddir symbol, for applications that need an absolute path.
3913 AC_DEFUN([CF_TOP_BUILDDIR],
3915 top_builddir=ifelse($1,,`pwd`,$1)
3916 AC_SUBST(top_builddir)
3918 dnl ---------------------------------------------------------------------------
3919 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3921 dnl Check for type of function-pointer passed to tputs. Some old
3922 dnl implementations used functions that had different prototypes, making it
3923 dnl hard to compile portable programs using tputs.
3924 AC_DEFUN([CF_TPUTS_PROTO],[
3925 CF_CURSES_FUNCS(tputs)
3926 if test "x$cf_cv_func_tputs" = xyes
3929 for cf_arg in int char
3931 for cf_ret in int void
3933 if test "$cf_ret" = void
3935 cf_return="/* nothing */"
3937 cf_return="return value"
3940 #include <${cf_cv_ncurses_header:-curses.h}>
3941 #include <$cf_cv_term_header>
3943 static $cf_ret outc($cf_arg value) { $cf_return; }
3945 tputs("hello", 0, outc);
3946 ${cf_cv_main_return:-return}(0);
3948 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3949 cat >>confdefs.h <<EOF
3950 #define TPUTS_ARG $cf_arg
3951 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3952 #define TPUTS_RETURN(value) $cf_return
3958 test "$cf_done" = yes && break
3962 dnl ---------------------------------------------------------------------------
3963 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3965 dnl Trim extra base X libraries added as a workaround for inconsistent library
3966 dnl dependencies returned by "new" pkg-config files.
3967 AC_DEFUN([CF_TRIM_X_LIBS],[
3968 for cf_trim_lib in Xmu Xt X11
3971 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3972 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3973 CF_VERBOSE(..trimmed $LIBS)
3978 dnl ---------------------------------------------------------------------------
3979 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3980 dnl -----------------
3981 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3982 dnl available in that form.
3984 dnl $1 = package name, which may be a shell variable
3985 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3986 dnl $3 = logic to use if pkg-config does not have the package
3987 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3988 AC_REQUIRE([CF_PKG_CONFIG])
3990 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3991 CF_VERBOSE(found package $1)
3992 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3993 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3994 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3995 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3996 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3997 CF_ADD_LIBS($cf_pkgconfig_libs)
3998 ifelse([$2],,:,[$2])
4002 ifelse([$3],,:,[$3])
4005 dnl ---------------------------------------------------------------------------
4006 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
4007 dnl -------------------
4008 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
4009 dnl can define it successfully.
4010 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
4011 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
4012 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4013 [cf_cv_xopen_source=no],
4014 [cf_save="$CPPFLAGS"
4015 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
4016 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
4017 [cf_cv_xopen_source=no],
4018 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
4023 if test "$cf_cv_xopen_source" != no ; then
4024 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
4025 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
4026 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
4027 CF_APPEND_CFLAGS($cf_temp_xopen_source)
4030 dnl ---------------------------------------------------------------------------
4031 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
4033 dnl Make an uppercase version of a variable
4034 dnl $1=uppercase($2)
4035 AC_DEFUN([CF_UPPER],
4037 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
4039 dnl ---------------------------------------------------------------------------
4040 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
4042 dnl Check for multibyte support, and if not found, utf8 compatibility library
4043 AC_DEFUN([CF_UTF8_LIB],
4045 AC_HAVE_HEADERS(wchar.h)
4046 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
4047 cf_save_LIBS="$LIBS"
4049 $ac_includes_default
4054 [cf_cv_utf8_lib=yes],
4056 #include <libutf8.h>],[putwc(0,0);],utf8,
4057 [cf_cv_utf8_lib=add-on],
4058 [cf_cv_utf8_lib=no])
4061 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
4063 if test "$cf_cv_utf8_lib" = "add-on" ; then
4064 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
4065 CF_ADD_INCDIR($cf_cv_header_path_utf8)
4066 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
4067 CF_ADD_LIBS($cf_cv_library_file_utf8)
4070 dnl ---------------------------------------------------------------------------
4071 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
4073 dnl Use AC_VERBOSE w/o the warnings
4074 AC_DEFUN([CF_VERBOSE],
4075 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
4078 dnl ---------------------------------------------------------------------------
4079 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
4081 dnl Check if type wide-character type $1 is declared, and if so, which header
4082 dnl file is needed. The second parameter is used to set a shell variable when
4083 dnl the type is not found. The first parameter sets a shell variable for the
4085 AC_DEFUN([CF_WCHAR_TYPE],
4087 # This is needed on Tru64 5.0 to declare $1
4088 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
4093 #ifdef HAVE_LIBUTF8_H
4094 #include <libutf8.h>
4103 #ifdef HAVE_LIBUTF8_H
4104 #include <libutf8.h>
4108 [cf_cv_$1=unknown])])])
4110 if test "$cf_cv_$1" = yes ; then
4111 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
4116 # if we do not find $1 in either place, use substitution to provide a fallback.
4117 if test "$cf_cv_$1" = unknown ; then
4122 # if we find $1 in either place, use substitution to provide a fallback.
4123 if test "$cf_cv_$1" != unknown ; then
4128 dnl ---------------------------------------------------------------------------
4129 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4130 dnl ------------------
4131 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4133 AC_DEFUN([CF_WITH_CURSES_DIR],[
4135 AC_MSG_CHECKING(for specific curses-directory)
4136 AC_ARG_WITH(curses-dir,
4137 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4138 [cf_cv_curses_dir=$withval],
4139 [cf_cv_curses_dir=no])
4140 AC_MSG_RESULT($cf_cv_curses_dir)
4142 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4144 CF_PATH_SYNTAX(withval)
4145 if test -d "$cf_cv_curses_dir"
4147 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4148 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4152 dnl ---------------------------------------------------------------------------
4153 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
4154 dnl ----------------
4155 dnl Configure-option for dbmalloc. The optional parameter is used to override
4156 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4157 AC_DEFUN([CF_WITH_DBMALLOC],[
4158 CF_NO_LEAKS_OPTION(dbmalloc,
4159 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
4162 if test "$with_dbmalloc" = yes ; then
4163 AC_CHECK_HEADER(dbmalloc.h,
4164 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
4167 dnl ---------------------------------------------------------------------------
4168 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
4170 dnl Configure-option for dmalloc. The optional parameter is used to override
4171 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4172 AC_DEFUN([CF_WITH_DMALLOC],[
4173 CF_NO_LEAKS_OPTION(dmalloc,
4174 [ --with-dmalloc test: use Gray Watson's dmalloc library],
4177 if test "$with_dmalloc" = yes ; then
4178 AC_CHECK_HEADER(dmalloc.h,
4179 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
4182 dnl ---------------------------------------------------------------------------
4183 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
4184 dnl --------------------
4185 dnl Allow for overriding the basename of a library, i.e., the part to which
4186 dnl prefixes/suffixes are attached.
4188 dnl $1 = variable to set
4189 dnl $2 = option name
4190 dnl $3 = default basename for library, if omitted use $2
4191 AC_DEFUN([CF_WITH_LIB_BASENAME],
4193 AC_MSG_CHECKING(for desired basename for $2 library)
4194 AC_ARG_WITH($2-libname,
4195 [ --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
4196 [with_lib_basename=$withval],
4197 [with_lib_basename=ifelse($3,,$2,$3)])
4198 $1="$with_lib_basename"
4202 $1=ifelse($3,,$2,$3)
4208 AC_MSG_RESULT([$]$1)
4211 dnl ---------------------------------------------------------------------------
4212 dnl CF_WITH_NCURSES_ETC version: 6 updated: 2023/01/16 10:10:06
4213 dnl -------------------
4214 dnl Use this macro for programs which use any variant of "curses", e.g.,
4215 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
4216 dnl library (such as slang) should use a "--with-screen=XXX" option.
4218 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
4219 dnl of the macros inside this one - before this macro.
4220 define([CF_WITH_NCURSES_ETC],[
4225 AC_MSG_CHECKING(for specified curses library type)
4227 [ --with-screen=XXX use specified curses-libraries],
4228 [cf_cv_screen=$withval],[
4230 AC_ARG_WITH(ncursesw,
4231 [ --with-ncursesw use wide ncurses-libraries],
4232 [cf_cv_screen=ncursesw],[
4234 AC_ARG_WITH(ncurses,
4235 [ --with-ncurses use ncurses-libraries],
4236 [cf_cv_screen=ncurses],[
4238 AC_ARG_WITH(pdcurses,
4239 [ --with-pdcurses compile/link with pdcurses X11 library],
4240 [cf_cv_screen=pdcurses],[
4242 AC_ARG_WITH(curses-colr,
4243 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
4244 [cf_cv_screen=curses_colr],[
4246 AC_ARG_WITH(curses-5lib,
4247 [ --with-curses-5lib compile/link with SunOS 5lib curses],
4248 [cf_cv_screen=curses_5lib])])])])])])
4250 AC_MSG_RESULT($cf_cv_screen)
4252 case $cf_cv_screen in
4258 CF_NCURSES_CONFIG($cf_cv_screen)
4261 CF_NCURSES_CONFIG($cf_cv_screen)
4267 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4271 CF_NCURSES_PTHREADS($cf_cv_screen)
4272 AC_SUBST(cf_cv_screen)
4275 dnl ---------------------------------------------------------------------------
4276 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4277 dnl -----------------------
4278 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4279 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4280 dnl script to search for the X11/Xt header files to declare (or not) the
4281 dnl symbol needed to enable "const" in those header files. If that configure
4282 dnl option is not used, then those checks are unnecessary.
4283 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4284 AC_PROVIDE([AC_PATH_XTRA])
4285 AC_PROVIDE([AC_PATH_X])
4286 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4292 dnl ---------------------------------------------------------------------------
4293 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4294 dnl ----------------
4295 AC_DEFUN([CF_WITH_VALGRIND],[
4296 CF_NO_LEAKS_OPTION(valgrind,
4297 [ --with-valgrind test: use valgrind],
4300 dnl ---------------------------------------------------------------------------
4301 dnl CF_WITH_X11_RGB version: 3 updated: 2023/10/28 11:59:01
4303 dnl Handle configure option "--with-x11-rgb", setting these shell
4306 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4307 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4309 dnl Most Linux's use this:
4310 dnl /usr/share/X11/rgb.txt
4311 dnl Debian uses this:
4312 dnl /etc/X11/rgb.txt
4313 dnl DragonFlyBSD ports uses this:
4314 dnl /usr/pkg/lib/X11/rgb.txt
4315 dnl FreeBSD ports use these:
4316 dnl /usr/local/lib/X11/rgb.txt
4317 dnl /usr/local/share/X11/rgb.txt
4318 dnl Mandriva has these:
4319 dnl /usr/lib/X11/rgb.txt
4320 dnl /usr/lib64/X11/rgb.txt
4321 dnl NetBSD has these
4322 dnl /usr/X11R7/lib/X11/rgb.txt
4323 dnl OpenSolaris uses
4325 dnl /usr/X11/etc/X11/rgb.txt
4326 dnl /usr/X11/share/X11/rgb.txt
4327 dnl /usr/X11/lib/X11/rgb.txt
4329 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4330 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4332 dnl /usr/X11/etc/X11/rgb.txt
4333 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4334 dnl /usr/X11/lib/amd64/X11/rgb.txt
4335 dnl Solaris10 uses (in this order):
4336 dnl /usr/openwin/lib/X11/rgb.txt
4337 dnl /usr/X11/lib/X11/rgb.txt
4338 AC_DEFUN([CF_WITH_X11_RGB],[
4339 AC_MSG_CHECKING(for X11 rgb file)
4340 AC_ARG_WITH(x11-rgb,
4341 [ --with-x11-rgb=FILE obtain X11 color definitions from FILE (default: EPREFIX/lib/X11/rgb.txt)],
4342 [RGB_PATH=$withval],
4345 if test "x[$]RGB_PATH" = xauto
4347 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4349 /opt/local/share/X11/rgb.txt \
4350 /opt/X11/share/X11/rgb.txt \
4351 /usr/share/X11/rgb.txt \
4352 /usr/X11/share/X11/rgb.txt \
4353 /usr/X11/lib/X11/rgb.txt \
4354 /usr/lib/X11/rgb.txt \
4356 /usr/pkg/lib/X11/rgb.txt \
4357 /usr/X11R7/lib/X11/rgb.txt \
4358 /usr/X11R6/lib/X11/rgb.txt \
4359 /usr/X11R5/lib/X11/rgb.txt \
4360 /usr/X11R4/lib/X11/rgb.txt \
4361 /usr/local/lib/X11/rgb.txt \
4362 /usr/local/share/X11/rgb.txt \
4363 /usr/lib64/X11/rgb.txt
4365 if test -f "$cf_path" ; then
4372 CF_PATH_SYNTAX(cf_path)
4375 AC_MSG_RESULT($RGB_PATH)
4377 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4380 if test "$RGB_PATH" = no
4384 AC_SUBST(no_x11_rgb)
4386 dnl ---------------------------------------------------------------------------
4387 dnl CF_XOPEN_CURSES version: 18 updated: 2023/01/11 04:05:23
4389 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4390 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4392 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4393 dnl as getbegy(). The latter is better design, but the former is standard.
4394 AC_DEFUN([CF_XOPEN_CURSES],
4396 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4397 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4398 cf_cv_need_xopen_extension=unknown
4400 $ac_includes_default
4401 #include <${cf_cv_ncurses_header:-curses.h}>],[
4402 #if defined(NCURSES_VERSION_PATCH)
4403 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4407 #ifdef NCURSES_WIDECHAR
4408 make an error /* prefer to fall-through on the second checks */
4411 int check2 = curs_set((int)sizeof(check));
4412 long x = winnstr(stdscr, "", 0);
4415 getbegyx(stdscr, y1, x1);
4420 [cf_cv_need_xopen_extension=none],
4422 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4425 #define $cf_try_xopen_extension 1
4426 $ac_includes_default
4427 #include <${cf_cv_ncurses_header:-curses.h}>],[
4429 int check2 = curs_set((int)sizeof(check));
4430 long x = winnstr(stdscr, "", 0);
4432 getbegyx(stdscr, y1, x1);
4438 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4443 case "$cf_cv_need_xopen_extension" in
4445 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4450 dnl ---------------------------------------------------------------------------
4451 dnl CF_XOPEN_SOURCE version: 67 updated: 2023/09/06 18:55:27
4453 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4454 dnl or adapt to the vendor's definitions to get equivalent functionality,
4455 dnl without losing the common non-POSIX features.
4458 dnl $1 is the nominal value for _XOPEN_SOURCE
4459 dnl $2 is the nominal value for _POSIX_C_SOURCE
4461 dnl The default case prefers _XOPEN_SOURCE over _POSIX_C_SOURCE if the
4462 dnl implementation predefines it, because X/Open and most implementations agree
4463 dnl that the latter is a legacy or "aligned" value.
4465 dnl Because _XOPEN_SOURCE is preferred, if defining _POSIX_C_SOURCE turns
4466 dnl that off, then refrain from setting _POSIX_C_SOURCE explicitly.
4469 dnl https://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html
4470 dnl https://docs.oracle.com/cd/E19253-01/816-5175/standards-5/index.html
4471 dnl https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html
4472 AC_DEFUN([CF_XOPEN_SOURCE],[
4473 AC_REQUIRE([AC_CANONICAL_HOST])
4474 AC_REQUIRE([CF_POSIX_VISIBLE])
4476 if test "$cf_cv_posix_visible" = no; then
4478 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4479 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4484 cf_xopen_source="-D_ALL_SOURCE"
4487 cf_xopen_source="-D_APPLE_C_SOURCE"
4490 cf_xopen_source="-D_DARWIN_C_SOURCE"
4493 (freebsd*|dragonfly*|midnightbsd*)
4494 # 5.x headers associate
4495 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4496 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4497 cf_POSIX_C_SOURCE=200112L
4499 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4502 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4505 cf_xopen_source="-D_HPUX_SOURCE"
4508 cf_xopen_source="-D_SGI_SOURCE"
4511 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys|mingw*|linux*uclibc)
4512 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4515 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4518 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4520 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4523 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4526 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4527 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4528 # Abusing the conformance level is a workaround.
4529 AC_MSG_WARN(this system does not provide usable locale support)
4530 cf_xopen_source="-D_BSD_SOURCE"
4534 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4535 cf_xopen_source="-D_BSD_SOURCE"
4539 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4542 cf_xopen_source="-D_OSF_SOURCE"
4545 cf_xopen_source="-D_QNX_SOURCE"
4548 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4551 cf_xopen_source="-D__EXTENSIONS__"
4552 cf_cv_xopen_source=broken
4554 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4560 cf_save_xopen_cppflags="$CPPFLAGS"
4561 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4562 # Some of these niche implementations use copy/paste, double-check...
4563 if test "$cf_cv_xopen_source" = no ; then
4564 CF_VERBOSE(checking if _POSIX_C_SOURCE interferes with _XOPEN_SOURCE)
4565 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
4566 AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
4567 CPPFLAGS="$cf_save_xopen_cppflags"])
4572 if test -n "$cf_xopen_source" ; then
4573 CF_APPEND_CFLAGS($cf_xopen_source,true)
4576 dnl In anything but the default case, we may have system-specific setting
4577 dnl which is still not guaranteed to provide all of the entrypoints that
4578 dnl _XOPEN_SOURCE would yield.
4579 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4580 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4581 AC_TRY_COMPILE([#include <stdlib.h>],[
4582 #ifndef _XOPEN_SOURCE
4583 #error _XOPEN_SOURCE is not defined
4585 [cf_XOPEN_SOURCE_set=yes],
4586 [cf_XOPEN_SOURCE_set=no])
4587 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4588 if test "$cf_XOPEN_SOURCE_set" = yes
4590 AC_TRY_COMPILE([#include <stdlib.h>],[
4591 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4592 #error (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4594 [cf_XOPEN_SOURCE_set_ok=yes],
4595 [cf_XOPEN_SOURCE_set_ok=no])
4596 if test "$cf_XOPEN_SOURCE_set_ok" = no
4598 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4604 fi # cf_cv_posix_visible
4606 dnl ---------------------------------------------------------------------------
4607 dnl CF_X_ATHENA version: 25 updated: 2023/01/11 04:05:23
4609 dnl Check for Xaw (Athena) libraries
4611 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4612 AC_DEFUN([CF_X_ATHENA],
4614 cf_x_athena=${cf_x_athena:-Xaw}
4616 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4619 [ --with-Xaw3d link with Xaw 3d library])
4620 if test "$withval" = yes ; then
4627 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4629 AC_ARG_WITH(Xaw3dxft,
4630 [ --with-Xaw3dxft link with Xaw 3d xft library])
4631 if test "$withval" = yes ; then
4632 cf_x_athena=Xaw3dxft
4638 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4641 [ --with-neXtaw link with neXT Athena library])
4642 if test "$withval" = yes ; then
4649 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4651 AC_ARG_WITH(XawPlus,
4652 [ --with-XawPlus link with Athena-Plus library])
4653 if test "$withval" = yes ; then
4662 if test "$PKG_CONFIG" != none ; then
4664 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4665 for cf_athena_pkg in \
4668 ${cf_x_athena}-devel \
4670 lib${cf_x_athena}-devel
4672 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4673 cf_x_athena_lib="$cf_pkgconfig_libs"
4674 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4675 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4679 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4681 $ac_includes_default
4682 #include <X11/Xmu/CharSet.h>
4684 int check = XmuCompareISOLatin1("big", "small");
4686 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4688 if test "$cf_cv_xaw_compat" = no
4690 # workaround for broken ".pc" files...
4691 case "$cf_x_athena_lib" in
4695 CF_VERBOSE(work around broken package)
4697 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4698 CF_TRY_PKG_CONFIG(xmu,[
4700 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4702 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4713 if test -z "$cf_x_athena_lib" ; then
4716 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4717 CF_X_ATHENA_LIBS($cf_x_athena)
4720 dnl ---------------------------------------------------------------------------
4721 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4722 dnl --------------------
4723 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4724 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4725 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4727 AC_REQUIRE([AC_PATH_XTRA])
4728 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4731 for cf_path in default \
4732 /usr/contrib/X11R6 \
4733 /usr/contrib/X11R5 \
4737 if test -z "$cf_x_athena_inc" ; then
4738 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4739 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4740 if test "$cf_path" != default ; then
4741 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4742 AC_MSG_CHECKING(for $cf_test in $cf_path)
4744 AC_MSG_CHECKING(for $cf_test)
4747 #include <X11/Intrinsic.h>
4748 #include <$cf_test>],[],
4751 AC_MSG_RESULT($cf_result)
4752 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4753 if test "$cf_result" = yes ; then
4754 test "$cf_path" = default && cf_x_athena_inc=default
4755 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4761 if test -z "$cf_x_athena_inc" ; then
4762 AC_MSG_WARN([Unable to find Athena header files])
4763 elif test "$cf_x_athena_inc" != default ; then
4764 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4767 dnl ---------------------------------------------------------------------------
4768 dnl CF_X_ATHENA_LIBS version: 14 updated: 2023/01/11 04:05:23
4769 dnl ----------------
4770 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4771 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4772 AC_DEFUN([CF_X_ATHENA_LIBS],
4773 [AC_REQUIRE([CF_X_TOOLKIT])
4774 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4777 for cf_path in default \
4778 /usr/contrib/X11R6 \
4779 /usr/contrib/X11R5 \
4784 ${cf_x_athena_root} \
4785 ${cf_x_athena_root}7 \
4786 ${cf_x_athena_root}6
4790 "-l$cf_lib -lXpm -lXmu" \
4791 "-l${cf_lib}_s -lXmu_s"
4793 test -n "$cf_x_athena_lib" && break
4795 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4796 cf_test=XawSimpleMenuAddGlobalActions
4797 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4798 CF_ADD_LIBS($cf_libs)
4799 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4801 $ac_includes_default
4802 #include <X11/Intrinsic.h>
4803 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4805 $cf_test((XtAppContext) 0)],
4808 AC_MSG_RESULT($cf_result)
4809 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4811 if test "$cf_result" = yes ; then
4812 cf_x_athena_lib="$cf_libs"
4816 test -n "$cf_x_athena_lib" && break
4820 if test -z "$cf_x_athena_lib" ; then
4822 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4825 CF_ADD_LIBS($cf_x_athena_lib)
4826 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4827 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4829 dnl ---------------------------------------------------------------------------
4830 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4832 AC_DEFUN([CF_X_EXT],[
4833 CF_TRY_PKG_CONFIG(Xext,,[
4834 AC_CHECK_LIB(Xext,XextCreateExtension,
4835 [CF_ADD_LIB(Xext)])])
4837 dnl ---------------------------------------------------------------------------
4838 dnl CF_X_TOOLKIT version: 27 updated: 2023/01/11 04:05:23
4840 dnl Check for X Toolkit libraries
4841 AC_DEFUN([CF_X_TOOLKIT],
4843 AC_REQUIRE([AC_PATH_XTRA])
4844 AC_REQUIRE([CF_CHECK_CACHE])
4846 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4847 # in some cases has installed dummy files in the former, other cases replaced
4848 # it with a link to the new location). This complicates the configure script.
4849 # Check for that pitfall, and recover using pkg-config
4851 # If none of these are set, the configuration is almost certainly broken.
4852 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4854 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4855 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4856 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4857 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4859 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4864 CF_TRY_PKG_CONFIG(xt,[
4870 # we have an "xt" package, but it may omit Xt's dependency on X11
4871 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4873 $ac_includes_default
4874 #include <X11/Xlib.h>
4876 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4877 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4878 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4879 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4880 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4881 if test "$cf_cv_xt_x11_compat" = no
4883 CF_VERBOSE(work around broken X11 dependency)
4884 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4885 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4890 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4892 $ac_includes_default
4893 #include <X11/Shell.h>
4894 ],[int num = IceConnectionNumber(0); (void) num
4895 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4897 if test "$cf_cv_xt_ice_compat" = no
4899 # workaround for broken ".pc" files used for X Toolkit.
4900 case "x$X_PRE_LIBS" in
4906 CF_VERBOSE(work around broken ICE dependency)
4907 CF_TRY_PKG_CONFIG(ice,
4908 [CF_TRY_PKG_CONFIG(sm)],
4909 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4919 LDFLAGS="$X_LIBS $LDFLAGS"
4920 CF_CHECK_CFLAGS($X_CFLAGS)
4922 AC_CHECK_FUNC(XOpenDisplay,,[
4923 AC_CHECK_LIB(X11,XOpenDisplay,
4924 [CF_ADD_LIB(X11)])])
4926 AC_CHECK_FUNC(XtAppInitialize,,[
4927 AC_CHECK_LIB(Xt, XtAppInitialize,
4928 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4930 LIBS="-lXt $LIBS"])])
4933 if test "$cf_have_X_LIBS" = no ; then
4935 [Unable to successfully link X Toolkit library (-lXt) with
4936 test program. You will have to check and add the proper libraries by hand
4940 dnl ---------------------------------------------------------------------------
4941 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4943 dnl Attempt to make a copy of a curses data item. This is needed in the
4944 dnl check-data configure tests when using ncurses, because the symbol may be
4945 dnl actually a function return-value. That could happen if the linker is
4946 dnl broken (does not resolve data-only references), or if ncurses is configured
4947 dnl to support re-entrant code.
4950 define([CF__CURSES_DATA],[
4951 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4952 const void *$1 = (const void *)($2);
4954 const void *$1 = &($2);
4956 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4958 dnl ---------------------------------------------------------------------------
4959 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4961 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4962 dnl are both available.
4963 define([CF__CURSES_HEAD],[
4965 #include <xcurses.h>
4966 char * XCursesProgramName = "test";
4968 #include <${cf_cv_ncurses_header:-curses.h}>
4969 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4970 #include <ncursesw/term.h>
4971 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4972 #include <ncurses/term.h>
4973 #elif defined(HAVE_TERM_H)
4978 dnl ---------------------------------------------------------------------------
4979 dnl CF__XOPEN_SOURCE_BODY version: 2 updated: 2023/02/18 17:41:25
4980 dnl ---------------------
4981 dnl body of test when test-compiling for _XOPEN_SOURCE check
4982 define([CF__XOPEN_SOURCE_BODY],
4984 #ifndef _XOPEN_SOURCE
4985 #error _XOPEN_SOURCE is not defined
4988 dnl ---------------------------------------------------------------------------
4989 dnl CF__XOPEN_SOURCE_HEAD version: 2 updated: 2023/02/18 17:41:25
4990 dnl ---------------------
4991 dnl headers to include when test-compiling for _XOPEN_SOURCE check
4992 define([CF__XOPEN_SOURCE_HEAD],
4994 $ac_includes_default