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 1.212 2023/02/18 22:50:36 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: 10 updated: 2020/12/31 18:40:20
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" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(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: 1 updated: 2023/02/18 17:41:25
1689 AC_DEFUN([CF_FUNC_GETTIME],[
1690 AC_CHECK_FUNC(gettimeofday,
1691 AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function]),[
1693 AC_CHECK_LIB(bsd, gettimeofday,
1694 AC_DEFINE(HAVE_GETTIMEOFDAY,1,[Define to 1 if we have gettimeofday function])
1695 CF_ADD_LIB(bsd))])dnl CLIX: bzero, select, gettimeofday
1697 dnl ---------------------------------------------------------------------------
1698 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
1700 dnl Check for openpty() function, along with <pty.h> header. It may need the
1701 dnl "util" library as well.
1702 AC_DEFUN([CF_FUNC_OPENPTY],
1704 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1705 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1706 cf_save_LIBS="$LIBS"
1707 test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
1708 for cf_header in pty.h libutil.h util.h
1711 #include <$cf_header>
1713 int x = openpty((int *)0, (int *)0, (char *)0,
1714 (struct termios *)0, (struct winsize *)0);
1716 cf_cv_func_openpty=$cf_header
1719 cf_cv_func_openpty=no
1722 LIBS="$cf_save_LIBS"
1725 dnl ---------------------------------------------------------------------------
1726 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1727 dnl -----------------
1728 dnl Test for availability of useful gcc __attribute__ directives to quiet
1729 dnl compiler warnings. Though useful, not all are supported -- and contrary
1730 dnl to documentation, unrecognized directives cause older compilers to barf.
1731 AC_DEFUN([CF_GCC_ATTRIBUTES],
1732 [AC_REQUIRE([AC_PROG_FGREP])dnl
1733 AC_REQUIRE([CF_C11_NORETURN])dnl
1735 if test "$GCC" = yes || test "$GXX" = yes
1737 cat > conftest.i <<EOF
1739 #define GCC_PRINTF 0
1744 #ifndef GCC_NORETURN
1745 #define GCC_NORETURN /* nothing */
1748 #define GCC_UNUSED /* nothing */
1751 if test "$GCC" = yes
1753 AC_CHECKING([for $CC __attribute__ directives])
1754 cat > "conftest.$ac_ext" <<EOF
1755 #line __oline__ "${as_me:-configure}"
1757 #include "confdefs.h"
1758 #include "conftest.h"
1759 #include "conftest.i"
1761 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1763 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1766 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1768 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1770 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1771 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1772 extern GCC_NORETURN void foo(void);
1773 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1775 cf_printf_attribute=no
1776 cf_scanf_attribute=no
1777 for cf_attribute in scanf printf unused noreturn
1779 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1780 cf_directive="__attribute__(($cf_attribute))"
1781 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1783 case "$cf_attribute" in
1785 cf_printf_attribute=yes
1786 cat >conftest.h <<EOF
1787 #define GCC_$cf_ATTRIBUTE 1
1791 cf_scanf_attribute=yes
1792 cat >conftest.h <<EOF
1793 #define GCC_$cf_ATTRIBUTE 1
1797 cat >conftest.h <<EOF
1798 #define GCC_$cf_ATTRIBUTE $cf_directive
1803 if AC_TRY_EVAL(ac_compile); then
1804 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1805 cat conftest.h >>confdefs.h
1806 case "$cf_attribute" in
1808 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1811 cf_value='/* nothing */'
1812 if test "$cf_printf_attribute" != no ; then
1813 cf_value='__attribute__((format(printf,fmt,var)))'
1814 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1816 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1819 cf_value='/* nothing */'
1820 if test "$cf_scanf_attribute" != no ; then
1821 cf_value='__attribute__((format(scanf,fmt,var)))'
1822 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1824 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1827 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1833 ${FGREP-fgrep} define conftest.i >>confdefs.h
1838 dnl ---------------------------------------------------------------------------
1839 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1841 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1842 dnl compatible), attempt to determine if icc/clang is actually used.
1843 AC_DEFUN([CF_GCC_VERSION],[
1844 AC_REQUIRE([AC_PROG_CC])
1846 if test "$GCC" = yes ; then
1847 AC_MSG_CHECKING(version of $CC)
1848 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1849 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1850 AC_MSG_RESULT($GCC_VERSION)
1852 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1853 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1855 dnl ---------------------------------------------------------------------------
1856 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1858 dnl Check if the compiler supports useful warning options. There's a few that
1859 dnl we don't use, simply because they're too noisy:
1861 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1862 dnl -Winline (usually not worthwhile)
1863 dnl -Wredundant-decls (system headers make this too noisy)
1864 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1865 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1866 dnl is enabled for ncurses using "--enable-const".
1870 dnl $1 is an optional list of gcc warning flags that a particular
1871 dnl application might want to use, e.g., "no-unused" for
1874 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1876 AC_DEFUN([CF_GCC_WARNINGS],
1878 AC_REQUIRE([CF_GCC_VERSION])
1879 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1880 cat > "conftest.$ac_ext" <<EOF
1881 #line __oline__ "${as_me:-configure}"
1882 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1884 if test "$INTEL_COMPILER" = yes
1886 # The "-wdXXX" options suppress warnings:
1887 # remark #1419: external declaration in primary source file
1888 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1889 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1890 # remark #193: zero used for undefined preprocessing identifier
1891 # remark #593: variable "curs_sb_left_arrow" was set but never used
1892 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1893 # remark #869: parameter "tw" was never referenced
1894 # remark #981: operands are evaluated in unspecified order
1895 # warning #279: controlling expression is constant
1897 AC_CHECKING([for $CC warning options])
1898 cf_save_CFLAGS="$CFLAGS"
1899 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1911 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1912 if AC_TRY_EVAL(ac_compile); then
1913 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1914 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1917 CFLAGS="$cf_save_CFLAGS"
1918 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1920 AC_CHECKING([for $CC warning options])
1921 cf_save_CFLAGS="$CFLAGS"
1923 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1924 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1925 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1926 for cf_opt in W Wall \
1927 Wbad-function-cast \
1930 Wdeclaration-after-statement \
1933 Wmissing-declarations \
1934 Wmissing-prototypes \
1938 Wstrict-prototypes \
1939 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1941 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1942 if AC_TRY_EVAL(ac_compile); then
1943 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1946 case "$GCC_VERSION" in
1948 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1953 case "$GCC_VERSION" in
1955 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1960 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1963 CFLAGS="$cf_save_CFLAGS"
1967 AC_SUBST(EXTRA_CFLAGS)
1969 dnl ---------------------------------------------------------------------------
1970 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
1971 dnl ----------------
1972 dnl Check for getopt's variables which are commonly defined in stdlib.h,
1973 dnl unistd.h or (nonstandard) in getopt.h
1974 AC_DEFUN([CF_GETOPT_HEADER],
1976 AC_HAVE_HEADERS(unistd.h getopt.h)
1977 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
1978 cf_cv_getopt_header=none
1979 for cf_header in stdio.h stdlib.h unistd.h getopt.h
1982 #include <$cf_header>],
1983 [int x = optind; char *y = optarg; (void)x; (void)y],
1984 [cf_cv_getopt_header=$cf_header
1988 if test "$cf_cv_getopt_header" != none ; then
1989 AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
1991 if test "$cf_cv_getopt_header" = getopt.h ; then
1992 AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
1995 dnl ---------------------------------------------------------------------------
1996 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1998 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1999 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
2000 dnl (or misfeature) of glibc2, which breaks portability of many applications,
2001 dnl since it is interwoven with GNU extensions.
2003 dnl Well, yes we could work around it...
2006 dnl $1 is the nominal value for _XOPEN_SOURCE
2007 AC_DEFUN([CF_GNU_SOURCE],
2009 cf_gnu_xopen_source=ifelse($1,,500,$1)
2011 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
2012 AC_TRY_COMPILE([#include <sys/types.h>],[
2013 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
2015 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
2018 # error not GNU C library
2020 [cf_cv_gnu_library=yes],
2021 [cf_cv_gnu_library=no])
2024 if test x$cf_cv_gnu_library = xyes; then
2026 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
2027 # was changed to help a little. newlib incorporated the change about 4
2029 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
2031 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2032 AC_TRY_COMPILE([#include <sys/types.h>],[
2033 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
2035 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
2038 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
2040 [cf_cv_gnu_library_219=yes],
2041 [cf_cv_gnu_library_219=no])
2045 if test "x$cf_cv_gnu_library_219" = xyes; then
2047 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
2048 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2051 #include <sys/types.h>
2053 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2056 # error GNU C library is too old
2058 [cf_cv_gnu_dftsrc_219=yes],
2059 [cf_cv_gnu_dftsrc_219=no])
2061 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2063 cf_cv_gnu_dftsrc_219=maybe
2066 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2068 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2069 AC_TRY_COMPILE([#include <sys/types.h>],[
2070 #ifndef _XOPEN_SOURCE
2071 #error expected _XOPEN_SOURCE to be defined
2073 [cf_cv_gnu_source=no],
2074 [cf_save="$CPPFLAGS"
2075 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2076 AC_TRY_COMPILE([#include <sys/types.h>],[
2077 #ifdef _XOPEN_SOURCE
2078 #error expected _XOPEN_SOURCE to be undefined
2080 [cf_cv_gnu_source=no],
2081 [cf_cv_gnu_source=yes])
2086 if test "$cf_cv_gnu_source" = yes
2088 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2089 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2090 AC_TRY_COMPILE([#include <sys/types.h>],[
2091 #ifdef _DEFAULT_SOURCE
2092 #error expected _DEFAULT_SOURCE to be undefined
2094 [cf_cv_default_source=no],
2095 [cf_cv_default_source=yes])
2097 if test "$cf_cv_default_source" = yes
2099 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2106 dnl ---------------------------------------------------------------------------
2107 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2109 dnl Construct a search-list of directories for a nonstandard header-file
2112 dnl $1 = the variable to return as result
2113 dnl $2 = the package name
2114 AC_DEFUN([CF_HEADER_PATH],
2118 # collect the current set of include-directories from compiler flags
2119 cf_header_path_list=""
2120 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2121 for cf_header_path in $CPPFLAGS $CFLAGS
2123 case "$cf_header_path" in
2125 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2126 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2127 cf_header_path_list="$cf_header_path_list [$]$1"
2133 # add the variations for the package we are looking for
2134 CF_SUBDIR_PATH($1,$2,include)
2136 test "$includedir" != NONE && \
2137 test "$includedir" != "/usr/include" && \
2138 test -d "$includedir" && {
2139 test -d "$includedir" && $1="[$]$1 $includedir"
2140 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2143 test "$oldincludedir" != NONE && \
2144 test "$oldincludedir" != "/usr/include" && \
2145 test -d "$oldincludedir" && {
2146 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2147 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2150 $1="[$]$1 $cf_header_path_list"
2152 dnl ---------------------------------------------------------------------------
2153 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2155 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2156 AC_DEFUN([CF_HELP_MESSAGE],
2157 [CF_ACVERSION_CHECK(2.53,[],[
2158 AC_DIVERT_HELP($1)])dnl
2160 dnl ---------------------------------------------------------------------------
2161 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
2162 dnl -----------------
2163 dnl If we do not have a given script, look for it in the parent directory.
2164 AC_DEFUN([CF_INHERIT_SCRIPT],
2166 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
2168 dnl ---------------------------------------------------------------------------
2169 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2171 dnl prompt for/fill-in useful install-program options
2172 AC_DEFUN([CF_INSTALL_OPTS],
2178 dnl ---------------------------------------------------------------------------
2179 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2180 dnl ----------------
2181 dnl Almost all "install" programs default to the current user's ownership.
2182 dnl Almost - MINIX is an exception.
2183 AC_DEFUN([CF_INSTALL_OPT_O],
2185 AC_MSG_CHECKING(if install needs to be told about ownership)
2186 case `$ac_config_guess` in
2195 AC_MSG_RESULT($with_install_o)
2196 if test "x$with_install_o" = xyes
2198 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'`"
2203 AC_SUBST(INSTALL_OPT_O)
2205 dnl ---------------------------------------------------------------------------
2206 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2207 dnl ----------------
2208 dnl Some install-programs accept a "-p" option to preserve file modification
2209 dnl timestamps. That can be useful as an install option, as well as a way to
2210 dnl avoid the need for ranlib after copying a static archive.
2211 AC_DEFUN([CF_INSTALL_OPT_P],
2213 : "${INSTALL:=install}"
2214 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2219 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2221 if test -f conftest.out/conftest.in
2223 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2224 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2225 if test -s conftest.err
2240 dnl ---------------------------------------------------------------------------
2241 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2242 dnl ----------------
2243 dnl By default, we should strip executables which are installed, but leave the
2244 dnl ability to suppress that for unit-testing.
2245 AC_DEFUN([CF_INSTALL_OPT_S],
2247 AC_MSG_CHECKING(if you want to install stripped executables)
2248 CF_ARG_DISABLE(stripping,
2249 [ --disable-stripping do not strip (debug info) installed executables],
2250 [enable_stripping=no],
2251 [enable_stripping=yes])
2252 AC_MSG_RESULT($enable_stripping)
2254 if test "$enable_stripping" = yes
2260 AC_SUBST(INSTALL_OPT_S)
2262 dnl ---------------------------------------------------------------------------
2263 dnl CF_INTEL_COMPILER version: 9 updated: 2023/02/18 17:41:25
2264 dnl -----------------
2265 dnl Check if the given compiler is really the Intel compiler for Linux. It
2266 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2267 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2269 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2270 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2271 dnl the wrappers for gcc and g++ warnings.
2273 dnl $1 = GCC (default) or GXX
2274 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2275 dnl $3 = CFLAGS (default) or CXXFLAGS
2276 AC_DEFUN([CF_INTEL_COMPILER],[
2277 AC_REQUIRE([AC_CANONICAL_HOST])
2278 ifelse([$2],,INTEL_COMPILER,[$2])=no
2280 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2283 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2284 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2285 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2287 #ifdef __INTEL_COMPILER
2289 #error __INTEL_COMPILER is not defined
2291 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2292 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2294 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2295 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2300 dnl ---------------------------------------------------------------------------
2301 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2303 dnl For the given system and compiler, find the compiler flags to pass to the
2304 dnl loader to use the "rpath" feature.
2305 AC_DEFUN([CF_LD_RPATH_OPT],
2307 AC_REQUIRE([CF_CHECK_CACHE])
2310 if test "x$cf_cv_enable_rpath" != xno
2312 AC_MSG_CHECKING(for an rpath option)
2313 case "$cf_cv_system_name" in
2315 if test "$GCC" = yes; then
2316 LD_RPATH_OPT="-Wl,-rpath,"
2318 LD_RPATH_OPT="-rpath "
2321 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2322 LD_RPATH_OPT="-Wl,-rpath,"
2324 (openbsd[[2-9]].*|mirbsd*)
2325 LD_RPATH_OPT="-Wl,-rpath,"
2328 LD_RPATH_OPT="-rpath "
2331 LD_RPATH_OPT="-Wl,-rpath,"
2334 LD_RPATH_OPT="-rpath "
2342 AC_MSG_RESULT($LD_RPATH_OPT)
2344 case "x$LD_RPATH_OPT" in
2346 AC_MSG_CHECKING(if we need a space after rpath option)
2347 cf_save_LIBS="$LIBS"
2348 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2349 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2350 LIBS="$cf_save_LIBS"
2351 AC_MSG_RESULT($cf_rpath_space)
2352 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2357 dnl ---------------------------------------------------------------------------
2358 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2360 dnl Construct a search-list of directories for a nonstandard library-file
2363 dnl $1 = the variable to return as result
2364 dnl $2 = the package name
2365 AC_DEFUN([CF_LIBRARY_PATH],
2368 cf_library_path_list=""
2369 if test -n "${LDFLAGS}${LIBS}" ; then
2370 for cf_library_path in $LDFLAGS $LIBS
2372 case "$cf_library_path" in
2374 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2375 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2376 cf_library_path_list="$cf_library_path_list [$]$1"
2382 CF_SUBDIR_PATH($1,$2,lib)
2384 $1="$cf_library_path_list [$]$1"
2386 dnl ---------------------------------------------------------------------------
2387 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2389 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2390 dnl acts as a placeholder.
2392 dnl The ".PHONY" feature was proposed in 2011 here
2393 dnl https://www.austingroupbugs.net/view.php?id=523
2394 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2396 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2397 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2399 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2400 dnl date unspecified).
2402 dnl + It was adopted in NetBSD make in June 1995.
2404 dnl + The other BSD make programs are derived from the NetBSD make (and for
2405 dnl that reason are not actually different "implementations").
2407 dnl + Some features of NetBSD make were actually adapted from pmake, which
2408 dnl began as a modified GNU make starting in 1993.
2410 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2411 dnl GNU make extension, but is less well known than the BSD make.
2412 AC_DEFUN([CF_MAKE_PHONY],[
2413 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2416 mkdir conftest || exit 1
2418 cat >makefile <<'CF_EOF'
2422 @echo "** making [$]@ [$](DATA)"
2424 @echo "** making [$]@ [$](DATA)"
2426 @echo "** making [$]@ [$](DATA)"
2427 echo [$](DATA) > [$]@
2429 @echo "** making [$]@ [$](DATA)"
2430 echo [$](DATA) > [$]@
2432 for cf_data in 1 2 3
2434 ${MAKE:-make} always DATA=$cf_data
2435 ${MAKE:-make} once DATA=$cf_data
2436 ${MAKE:-make} -t always once
2437 if test -f always ; then
2438 echo "no (case 1)" > ../conftest.tmp
2439 elif test ! -f always.out ; then
2440 echo "no (case 2)" > ../conftest.tmp
2441 elif test ! -f once.out ; then
2442 echo "no (case 3)" > ../conftest.tmp
2443 elif ! cmp -s always.out once.out ; then
2444 echo "no (case 4)" > ../conftest.tmp
2445 diff always.out once.out
2447 cf_check="`cat always.out`"
2448 if test "x$cf_check" != "x$cf_data" ; then
2449 echo "no (case 5)" > ../conftest.tmp
2451 echo yes > ../conftest.tmp
2459 cf_cv_make_PHONY="`cat conftest.tmp`"
2464 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2465 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2466 AC_SUBST(MAKE_NO_PHONY)
2467 AC_SUBST(MAKE_PHONY)
2469 dnl ---------------------------------------------------------------------------
2470 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2472 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2473 dnl a monocase filesystem.
2474 AC_DEFUN([CF_MAKE_TAGS],[
2475 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2477 AC_CHECK_PROGS(CTAGS, exctags ctags)
2478 AC_CHECK_PROGS(ETAGS, exetags etags)
2480 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2482 if test "$cf_cv_mixedcase" = yes ; then
2483 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2488 if test "$MAKE_UPPER_TAGS" = yes ; then
2494 if test "$MAKE_LOWER_TAGS" = yes ; then
2503 AC_SUBST(MAKE_UPPER_TAGS)
2504 AC_SUBST(MAKE_LOWER_TAGS)
2506 dnl ---------------------------------------------------------------------------
2507 dnl CF_MATH_LIB version: 11 updated: 2022/07/27 19:01:48
2509 dnl Checks for libraries. At least one UNIX system, Apple Macintosh
2510 dnl Rhapsody 5.5, does not have -lm. We cannot use the simpler
2511 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
2512 AC_DEFUN([CF_MATH_LIB],
2514 AC_CACHE_CHECK(if -lm needed for math functions,
2521 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2522 [cf_cv_need_libm=no],
2523 [cf_cv_need_libm=yes])])
2525 if test "$cf_cv_need_libm" = yes
2528 cf_save_LIBS="$LIBS"
2530 AC_CACHE_CHECK(if -lm is available for math functions,
2537 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2538 [cf_cv_have_libm=yes],
2539 [cf_cv_have_libm=no])])
2540 LIBS="$cf_save_LIBS"
2542 if test "$cf_cv_have_libm" = yes
2544 ifelse($1,,[CF_ADD_LIB(m)],[$1=-lm])
2550 if test "$cf_cv_have_libm" = yes
2552 AC_DEFINE(HAVE_MATH_FUNCS,1,[Define to 1 if math functions are available])
2555 dnl ---------------------------------------------------------------------------
2556 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2557 dnl ----------------------
2558 dnl Check if the file-system supports mixed-case filenames. If we're able to
2559 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2560 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2562 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2563 if test "$cross_compiling" = yes ; then
2564 case "$target_alias" in
2565 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2573 rm -f conftest CONFTEST
2575 if test -f CONFTEST ; then
2580 rm -f conftest CONFTEST
2583 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2585 dnl ---------------------------------------------------------------------------
2586 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2588 dnl Write a debug message to config.log, along with the line number in the
2589 dnl configure script.
2590 AC_DEFUN([CF_MSG_LOG],[
2591 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2593 dnl ---------------------------------------------------------------------------
2594 dnl CF_NCURSES_CC_CHECK version: 6 updated: 2023/02/18 17:47:58
2595 dnl -------------------
2596 dnl Check if we can compile with ncurses' header file
2597 dnl $1 is the cache variable to set
2598 dnl $2 is the header-file to include
2599 dnl $3 is the root name (ncurses or ncursesw)
2600 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2602 ]ifelse($3,ncursesw,[
2603 #define _XOPEN_SOURCE_EXTENDED
2604 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2605 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2608 #ifdef NCURSES_VERSION
2609 ]ifelse($3,ncursesw,[
2611 #error WACS_BSSB is not defined
2614 printf("%s\\n", NCURSES_VERSION);
2619 #error __NCURSES_H is not defined
2626 dnl ---------------------------------------------------------------------------
2627 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2628 dnl -----------------
2629 dnl Tie together the configure-script macros for ncurses, preferring these in
2631 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2632 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2633 dnl c) just plain libraries
2635 dnl $1 is the root library name (default: "ncurses")
2636 AC_DEFUN([CF_NCURSES_CONFIG],[
2637 AC_REQUIRE([CF_PKG_CONFIG])
2638 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2639 cf_have_ncuconfig=no
2641 if test "x${PKG_CONFIG:=none}" != xnone; then
2642 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2643 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2646 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2647 cf_have_ncuconfig=unknown
2649 cf_save_CFLAGS="$CFLAGS"
2650 cf_save_CPPFLAGS="$CPPFLAGS"
2651 cf_save_LIBS="$LIBS"
2653 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2654 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2656 # while -W for passing linker flags is prevalent, it is not "standard".
2657 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2658 # incompatible _and_ non-standard -W option which gives an error. Work
2659 # around that pitfall.
2660 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2662 CF_ADD_CFLAGS($cf_pkg_cflags)
2663 CF_ADD_LIBS($cf_pkg_libs)
2665 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2666 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2667 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2669 { const char *xx = curses_version(); return (xx == 0); }],
2670 [cf_test_ncuconfig=yes],
2671 [cf_test_ncuconfig=no],
2672 [cf_test_ncuconfig=maybe])],
2673 [cf_test_ncuconfig=no])
2675 CFLAGS="$cf_save_CFLAGS"
2676 CPPFLAGS="$cf_save_CPPFLAGS"
2677 LIBS="$cf_save_LIBS"
2679 if test "x$cf_test_ncuconfig" != xyes; then
2680 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2681 cf_pkg_cflags="$cf_temp"
2682 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2683 cf_pkg_libs="$cf_temp"
2688 CF_APPEND_CFLAGS($cf_pkg_cflags)
2689 CF_ADD_LIBS($cf_pkg_libs)
2691 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2692 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2693 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2695 { const char *xx = curses_version(); return (xx == 0); }],
2696 [cf_have_ncuconfig=yes],
2697 [cf_have_ncuconfig=no],
2698 [cf_have_ncuconfig=maybe])],
2699 [cf_have_ncuconfig=no])
2700 AC_MSG_RESULT($cf_have_ncuconfig)
2701 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2702 if test "$cf_have_ncuconfig" != "yes"
2704 CPPFLAGS="$cf_save_CPPFLAGS"
2705 LIBS="$cf_save_LIBS"
2706 NCURSES_CONFIG_PKG=none
2708 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2709 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2715 NCURSES_CONFIG_PKG=none
2718 NCURSES_CONFIG_PKG=none
2721 if test "x$cf_have_ncuconfig" = "xno"; then
2722 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2724 CF_ACVERSION_CHECK(2.52,
2725 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2726 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2728 if test "$NCURSES_CONFIG" != none ; then
2730 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
2731 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2733 # even with config script, some packages use no-override for curses.h
2734 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2736 dnl like CF_NCURSES_CPPFLAGS
2737 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2739 dnl like CF_NCURSES_LIBS
2740 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2741 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2743 dnl like CF_NCURSES_VERSION
2744 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2748 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2749 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2756 dnl ---------------------------------------------------------------------------
2757 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2758 dnl -------------------
2759 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2760 dnl the CPPFLAGS variable so we can include its header.
2762 dnl The header files may be installed as either curses.h, or ncurses.h (would
2763 dnl be obsolete, except that some packagers prefer this name to distinguish it
2764 dnl from a "native" curses implementation). If not installed for overwrite,
2765 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2766 dnl /usr/include/ncurses), but someone may have installed overwriting the
2767 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2768 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2771 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2772 dnl is already in the include-path, don't even bother with this, since we cannot
2773 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2775 dnl The optional parameter gives the root name of the library, in case it is
2776 dnl not installed as the default curses library. That is how the
2777 dnl wide-character version of ncurses is installed.
2778 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2779 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2781 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2782 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2784 test -n "$cf_cv_curses_dir" && \
2785 test "$cf_cv_curses_dir" != "no" && { \
2786 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2789 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2790 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2791 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2792 for cf_header in $cf_header_list
2794 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2795 test "$cf_cv_ncurses_h" != no && break
2802 # some applications need this, but should check for NCURSES_VERSION
2803 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2807 dnl ---------------------------------------------------------------------------
2808 dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
2809 dnl --------------------
2810 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
2811 dnl may provide these functions. Define the symbol if it is not defined, and
2813 AC_DEFUN([CF_NCURSES_EXT_FUNCS],
2815 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
2817 #include <${cf_cv_ncurses_header:-curses.h}>],
2819 int x = NCURSES_EXT_FUNCS
2820 ],[cf_cv_ncurses_ext_funcs=defined],[
2822 #include <${cf_cv_ncurses_header:-curses.h}>],
2824 (void) assume_default_colors (0, 0);
2825 (void) curses_version ();
2826 (void) define_key (0, 0);
2827 (void) is_term_resized (0, 0);
2828 (void) key_defined (0);
2829 (void) keybound (0, 0);
2830 (void) keyok (0, 0);
2831 (void) resize_term (0, 0);
2832 (void) resizeterm (0, 0);
2833 (void) use_default_colors ();
2834 (void) use_extended_names (0);
2835 (void) wresize (0, 0, 0);],
2836 [cf_cv_ncurses_ext_funcs=yes],
2837 [cf_cv_ncurses_ext_funcs=no])
2840 test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
2842 dnl ---------------------------------------------------------------------------
2843 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2844 dnl -----------------
2845 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2846 dnl variations of ncurses' installs.
2848 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2849 AC_DEFUN([CF_NCURSES_HEADER],[
2851 if test "$cf_cv_ncurses_h" != no ; then
2852 cf_cv_ncurses_header=$cf_cv_ncurses_h
2855 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2856 test -n "$verbose" && echo
2857 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2858 test -n "$verbose" && echo "search path $cf_search"
2859 cf_save2_CPPFLAGS="$CPPFLAGS"
2860 for cf_incdir in $cf_search
2862 CF_ADD_INCDIR($cf_incdir)
2867 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2868 if test "$cf_cv_ncurses_h2" != no ; then
2869 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2870 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2873 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2875 CPPFLAGS="$cf_save2_CPPFLAGS"
2876 test "$cf_cv_ncurses_h2" != no && break
2878 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2881 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2882 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
2883 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
2884 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
2886 CF_ADD_INCDIR($cf_1st_incdir)
2890 # Set definitions to allow ifdef'ing for ncurses.h
2892 case "$cf_cv_ncurses_header" in
2894 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2898 case "$cf_cv_ncurses_header" in
2899 (ncurses/curses.h|ncurses/ncurses.h)
2900 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2902 (ncursesw/curses.h|ncursesw/ncurses.h)
2903 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2908 dnl ---------------------------------------------------------------------------
2909 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
2911 dnl Look for the ncurses library. This is a little complicated on Linux,
2912 dnl because it may be linked with the gpm (general purpose mouse) library.
2913 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2914 dnl unusable with ncurses. However, we don't want to link with gpm unless
2915 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2916 dnl and the linker will record a dependency.
2918 dnl The optional parameter gives the root name of the library, in case it is
2919 dnl not installed as the default curses library. That is how the
2920 dnl wide-character version of ncurses is installed.
2921 AC_DEFUN([CF_NCURSES_LIBS],
2922 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2924 cf_nculib_root=ifelse($1,,ncurses,$1)
2925 # This works, except for the special case where we find gpm, but
2926 # ncurses is in a nonstandard location via $LIBS, and we really want
2929 cf_ncurses_SAVE="$LIBS"
2930 AC_CHECK_LIB(gpm,Gpm_Open,
2931 [AC_CHECK_LIB(gpm,initscr,
2932 [LIBS="$cf_ncurses_SAVE"],
2933 [cf_ncurses_LIBS="-lgpm"])])
2937 # This is only necessary if you are linking against an obsolete
2938 # version of ncurses (but it should do no harm, since it is static).
2939 if test "$cf_nculib_root" = ncurses ; then
2940 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2945 CF_ADD_LIBS($cf_ncurses_LIBS)
2947 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
2949 CF_ADD_LIBS(-l$cf_nculib_root)
2951 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2952 [#include <${cf_cv_ncurses_header:-curses.h}>],
2957 if test -n "$cf_ncurses_LIBS" ; then
2958 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2959 cf_ncurses_SAVE="$LIBS"
2960 for p in $cf_ncurses_LIBS ; do
2961 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
2962 if test "$q" != "$LIBS" ; then
2966 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2967 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2968 [AC_MSG_RESULT(yes)],
2970 LIBS="$cf_ncurses_SAVE"])
2973 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2974 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2976 dnl ---------------------------------------------------------------------------
2977 dnl CF_NCURSES_PTHREADS version: 2 updated: 2016/04/22 05:07:41
2978 dnl -------------------
2979 dnl Use this followup check to ensure that we link with pthreads if ncurses
2981 AC_DEFUN([CF_NCURSES_PTHREADS],[
2982 : ${cf_nculib_root:=ifelse($1,,ncurses,$1)}
2983 AC_CHECK_LIB($cf_nculib_root,_nc_init_pthreads,
2984 cf_cv_ncurses_pthreads=yes,
2985 cf_cv_ncurses_pthreads=no)
2986 if test "$cf_cv_ncurses_pthreads" = yes
2988 CF_ADD_LIBS(-lpthread)
2991 dnl ---------------------------------------------------------------------------
2992 dnl CF_NCURSES_VERSION version: 17 updated: 2023/01/05 18:54:02
2993 dnl ------------------
2994 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2995 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
2996 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2997 AC_DEFUN([CF_NCURSES_VERSION],
2999 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
3000 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
3001 cf_cv_ncurses_version=no
3003 rm -f "$cf_tempfile"
3005 $ac_includes_default
3007 #include <${cf_cv_ncurses_header:-curses.h}>
3011 FILE *fp = fopen("$cf_tempfile", "w");
3012 #ifdef NCURSES_VERSION
3013 # ifdef NCURSES_VERSION_PATCH
3014 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3016 fprintf(fp, "%s\\n", NCURSES_VERSION);
3020 fprintf(fp, "old\\n");
3025 ${cf_cv_main_return:-return}(0);
3027 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3029 # This will not work if the preprocessor splits the line after the
3030 # Autoconf token. The 'unproto' program does that.
3031 cat > "conftest.$ac_ext" <<EOF
3032 #include <${cf_cv_ncurses_header:-curses.h}>
3034 #ifdef NCURSES_VERSION
3035 Autoconf NCURSES_VERSION
3043 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3045 if test -f conftest.out ; then
3046 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3047 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3051 rm -f "$cf_tempfile"
3053 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3055 dnl ---------------------------------------------------------------------------
3056 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
3057 dnl ----------------------
3058 dnl Check for ncurses "wrap-prefix" used for public variables which have been
3059 dnl wrapped with a function to help with concurrency control.
3060 AC_DEFUN([CF_NCURSES_WRAP_PREFIX],
3062 AC_MSG_CHECKING(for ncurses wrap-prefix)
3063 AC_ARG_WITH(ncurses-wrap-prefix,
3064 [ --with-ncurses-wrap-prefix naming-prefix for ncurses wrapped-variables],
3065 [NCURSES_WRAP_PREFIX=$withval],
3066 [NCURSES_WRAP_PREFIX=_nc_])
3067 AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
3069 AC_SUBST(NCURSES_WRAP_PREFIX)
3071 dnl ---------------------------------------------------------------------------
3072 dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
3073 dnl ----------------
3074 dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
3075 dnl Some workarounds are needed in client programs to allow them to compile.
3076 AC_DEFUN([CF_NETBSD_FORM_H],[
3077 AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
3079 #include <${cf_cv_ncurses_header:-curses.h}>
3083 int y = current_field(form)->cursor_ypos;
3084 int x = current_field(form)->cursor_xpos;
3085 ],[cf_cv_netbsd_form_h=yes
3086 ],[cf_cv_netbsd_form_h=no])
3089 test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
3091 dnl ---------------------------------------------------------------------------
3092 dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
3093 dnl ----------------
3094 dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
3095 dnl Some workarounds are needed in client programs to allow them to compile.
3096 AC_DEFUN([CF_NETBSD_MENU_H],[
3097 AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
3099 #include <${cf_cv_ncurses_header:-curses.h}>
3103 int y = menu->max_item_width;
3104 ],[cf_cv_netbsd_menu_h=yes
3105 ],[cf_cv_netbsd_menu_h=no])
3108 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])
3110 dnl ---------------------------------------------------------------------------
3111 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
3112 dnl ------------------
3113 dnl see CF_WITH_NO_LEAKS
3115 dnl $1 = option/name
3117 dnl $3 = symbol to define if the option is set
3118 dnl $4 = additional actions to take if the option is set
3119 AC_DEFUN([CF_NO_LEAKS_OPTION],[
3120 AC_MSG_CHECKING(if you want to use $1 for testing)
3123 [case "x$withval" in
3126 : "${with_cflags:=-g}"
3127 : "${enable_leaks:=no}"
3129 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
3135 AC_MSG_RESULT(${with_$1:-no})
3137 case ".$with_cflags" in
3149 dnl ---------------------------------------------------------------------------
3150 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3152 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3153 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3154 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3155 dnl delayed evaluation of those symbols.
3156 AC_DEFUN([CF_PATH_SYNTAX],[
3157 if test "x$prefix" != xNONE; then
3158 cf_path_syntax="$prefix"
3160 cf_path_syntax="$ac_default_prefix"
3164 (.\[$]\(*\)*|.\'*\'*)
3168 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3170 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3174 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3179 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3182 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3186 dnl ---------------------------------------------------------------------------
3187 dnl CF_PDCURSES_X11 version: 15 updated: 2021/01/02 09:31:20
3189 dnl Configure for PDCurses' X11 library
3190 AC_DEFUN([CF_PDCURSES_X11],[
3191 AC_REQUIRE([CF_X_ATHENA])
3193 CF_ACVERSION_CHECK(2.52,
3194 [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
3195 [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
3197 if test "$XCURSES_CONFIG" != none ; then
3199 CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
3200 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
3202 cf_cv_lib_XCurses=yes
3206 LDFLAGS="$LDFLAGS $X_LIBS"
3207 CF_CHECK_CFLAGS($X_CFLAGS)
3208 AC_CHECK_LIB(X11,XOpenDisplay,
3209 [CF_ADD_LIBS(-lX11)],,
3210 [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
3211 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
3212 CF_ADD_LIBS(-lXCurses)
3214 #include <xcurses.h>
3215 char *XCursesProgramName = "test";
3217 [cf_cv_lib_XCurses=yes],
3218 [cf_cv_lib_XCurses=no])
3223 if test "$cf_cv_lib_XCurses" = yes ; then
3224 AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
3225 AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
3226 AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
3228 AC_MSG_ERROR(Cannot link with XCurses)
3231 dnl ---------------------------------------------------------------------------
3232 dnl CF_PKG_CONFIG version: 12 updated: 2021/10/10 20:18:09
3234 dnl Check for the package-config program, unless disabled by command-line.
3236 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3237 AC_DEFUN([CF_PKG_CONFIG],
3239 AC_MSG_CHECKING(if you want to use pkg-config)
3240 AC_ARG_WITH(pkg-config,
3241 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3242 [cf_pkg_config=$withval],
3243 [cf_pkg_config=yes])
3244 AC_MSG_RESULT($cf_pkg_config)
3246 case "$cf_pkg_config" in
3251 CF_ACVERSION_CHECK(2.52,
3252 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3253 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3260 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3261 if test "$PKG_CONFIG" != none ; then
3262 CF_PATH_SYNTAX(PKG_CONFIG)
3263 elif test "x$cf_pkg_config" != xno ; then
3264 AC_MSG_WARN(pkg-config is not installed)
3267 AC_SUBST(PKG_CONFIG)
3269 dnl ---------------------------------------------------------------------------
3270 dnl CF_POSIX_C_SOURCE version: 12 updated: 2023/02/18 17:41:25
3271 dnl -----------------
3272 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3274 dnl POSIX.1-1990 _POSIX_SOURCE
3275 dnl POSIX.1-1990 and _POSIX_SOURCE and
3276 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3278 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3279 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3280 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3283 dnl $1 is the nominal value for _POSIX_C_SOURCE
3284 AC_DEFUN([CF_POSIX_C_SOURCE],
3285 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3287 if test "$cf_cv_posix_visible" = no; then
3289 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3291 cf_save_CFLAGS="$CFLAGS"
3292 cf_save_CPPFLAGS="$CPPFLAGS"
3294 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3295 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3297 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3298 CF_MSG_LOG(if the symbol is already defined go no further)
3299 AC_TRY_COMPILE([#include <sys/types.h>],[
3300 #ifndef _POSIX_C_SOURCE
3301 #error _POSIX_C_SOURCE is not defined
3303 [cf_cv_posix_c_source=no],
3304 [cf_want_posix_source=no
3305 case .$cf_POSIX_C_SOURCE in
3307 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3310 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3311 cf_want_posix_source=yes
3314 cf_want_posix_source=yes
3317 if test "$cf_want_posix_source" = yes ; then
3318 AC_TRY_COMPILE([#include <sys/types.h>],[
3319 #ifdef _POSIX_SOURCE
3320 #error _POSIX_SOURCE is defined
3322 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3324 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3325 CFLAGS="$cf_trim_CFLAGS"
3326 CPPFLAGS="$cf_trim_CPPFLAGS"
3327 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3328 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3329 AC_TRY_COMPILE([#include <sys/types.h>],[
3330 #ifndef _POSIX_C_SOURCE
3331 #error _POSIX_C_SOURCE is not defined
3333 [cf_cv_posix_c_source=no])
3334 CFLAGS="$cf_save_CFLAGS"
3335 CPPFLAGS="$cf_save_CPPFLAGS"
3339 if test "$cf_cv_posix_c_source" != no ; then
3340 CFLAGS="$cf_trim_CFLAGS"
3341 CPPFLAGS="$cf_trim_CPPFLAGS"
3342 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3345 fi # cf_cv_posix_visible
3348 dnl ---------------------------------------------------------------------------
3349 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3350 dnl ----------------
3351 dnl POSIX documents test-macros which an application may set before any system
3352 dnl headers are included to make features available.
3354 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3355 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3356 dnl recent features visible in the system header files unless the application
3357 dnl overrides the corresponding test-macros. Doing that introduces portability
3360 dnl This macro makes a special check for the symbols used for this, to avoid a
3361 dnl conflicting definition.
3362 AC_DEFUN([CF_POSIX_VISIBLE],
3364 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3365 AC_TRY_COMPILE([#include <stdio.h>],[
3366 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3367 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3368 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3369 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3370 #error conflicting symbols found
3372 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3375 dnl ---------------------------------------------------------------------------
3376 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3378 dnl Append definitions and rules for the given programs to the subdirectory
3379 dnl Makefiles, and the recursion rule for the top-level Makefile.
3382 dnl $1 = script to run
3383 dnl $2 = list of subdirectories
3387 AC_DEFUN([CF_PRG_RULES],
3391 if test ! -d "$srcdir/$cf_dir" ; then
3393 elif test -f "$srcdir/$cf_dir/programs" ; then
3394 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3399 dnl ---------------------------------------------------------------------------
3400 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3402 dnl standard check for CC, plus followup sanity checks
3403 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3404 AC_DEFUN([CF_PROG_CC],[
3405 CF_ACVERSION_CHECK(2.53,
3406 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3407 AC_REQUIRE([AC_PROG_CC])],
3409 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3411 CF_ACVERSION_CHECK(2.52,
3416 dnl ---------------------------------------------------------------------------
3417 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3419 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3420 dnl misc/tabset install won't work properly. Usually this happens only when
3421 dnl using the fallback mkinstalldirs script
3422 AC_DEFUN([CF_PROG_INSTALL],
3428 CF_DIRNAME(cf_dir,$INSTALL)
3429 test -z "$cf_dir" && cf_dir=.
3430 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3434 dnl ---------------------------------------------------------------------------
3435 dnl CF_PROG_LINT version: 5 updated: 2022/08/20 15:44:13
3437 AC_DEFUN([CF_PROG_LINT],
3439 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3441 (xcppcheck|x*/cppcheck)
3442 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3448 dnl ---------------------------------------------------------------------------
3449 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3450 dnl ----------------
3451 dnl Remove a given option from CFLAGS/CPPFLAGS
3452 dnl $1 = option to remove
3453 dnl $2 = variable to update
3454 dnl $3 = nonempty to allow verbose message
3455 define([CF_REMOVE_CFLAGS],
3457 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3460 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3461 test "[$]$2" != "$cf_old_cflag" || break
3462 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3466 dnl ---------------------------------------------------------------------------
3467 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3468 dnl ----------------
3469 dnl Remove all -U and -D options that refer to the given symbol from a list
3470 dnl of C compiler options. This works around the problem that not all
3471 dnl compilers process -U and -D options from left-to-right, so a -U option
3472 dnl cannot be used to cancel the effect of a preceding -D option.
3474 dnl $1 = target (which could be the same as the source variable)
3475 dnl $2 = source (including '$')
3476 dnl $3 = symbol to remove
3477 define([CF_REMOVE_DEFINE],
3480 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3481 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3483 dnl ---------------------------------------------------------------------------
3484 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3485 dnl ---------------------
3486 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3487 dnl $1 = name of current macro
3488 define([CF_RESTORE_XTRA_FLAGS],
3490 LIBS="$cf_save_LIBS_$1"
3491 CFLAGS="$cf_save_CFLAGS_$1"
3492 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3494 dnl ---------------------------------------------------------------------------
3495 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3497 AC_DEFUN([CF_RPATH_HACK],
3498 [AC_REQUIRE([AC_PROG_FGREP])dnl
3499 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3501 AC_MSG_CHECKING(for updated LDFLAGS)
3502 if test -n "$LD_RPATH_OPT" ; then
3503 AC_MSG_RESULT(maybe)
3505 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3506 cf_rpath_list="/usr/lib /lib"
3507 if test "$cf_ldd_prog" != no
3511 AC_TRY_LINK([#include <stdio.h>],
3513 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3514 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3516 # If we passed the link-test, but get a "not found" on a given library,
3517 # this could be due to inept reconfiguration of gcc to make it only
3518 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3519 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3520 # /usr/local libraries.
3521 if test -n "$cf_rpath_oops"
3523 for cf_rpath_src in $cf_rpath_oops
3525 for cf_rpath_dir in \
3530 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3532 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3533 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3541 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3543 CF_RPATH_HACK_2(LDFLAGS)
3544 CF_RPATH_HACK_2(LIBS)
3546 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3550 AC_SUBST(EXTRA_LDFLAGS)
3552 dnl ---------------------------------------------------------------------------
3553 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3555 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3556 dnl EXTRA_LDFLAGS for each -L option found.
3558 dnl $cf_rpath_list contains a list of directories to ignore.
3560 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3561 dnl but LIBS often has misplaced -L options.
3562 AC_DEFUN([CF_RPATH_HACK_2],
3564 CF_VERBOSE(...checking $1 [$]$1)
3567 for cf_rpath_src in [$]$1
3569 case "$cf_rpath_src" in
3572 # check if this refers to a directory which we will ignore
3574 if test -n "$cf_rpath_list"
3576 for cf_rpath_item in $cf_rpath_list
3578 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3586 if test "$cf_rpath_skip" = no
3588 # transform the option
3589 if test "$LD_RPATH_OPT" = "-R " ; then
3590 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3592 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3595 # if we have not already added this, add it now
3596 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3597 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3599 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3600 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3605 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3609 CF_VERBOSE(...checked $1 [$]$1)
3610 AC_SUBST(EXTRA_LDFLAGS)
3612 dnl ---------------------------------------------------------------------------
3613 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3614 dnl ------------------
3615 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3616 dnl and libraries which do not update those variables.
3618 dnl $1 = name of current macro
3619 define([CF_SAVE_XTRA_FLAGS],
3621 cf_save_LIBS_$1="$LIBS"
3622 cf_save_CFLAGS_$1="$CFLAGS"
3623 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3624 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3625 for cf_X_CFLAGS in $X_CFLAGS
3627 case "x$cf_X_CFLAGS" in
3629 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3632 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3637 dnl ---------------------------------------------------------------------------
3638 dnl CF_SIGWINCH version: 7 updated: 2023/02/18 17:41:25
3640 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3641 dnl programs need this test).
3643 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3644 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3645 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3646 dnl break that part of the interface as well.
3647 AC_DEFUN([CF_SIGWINCH],
3649 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3651 #include <sys/types.h>
3652 #include <sys/signal.h>
3653 ],[int x = SIGWINCH; (void)x],
3654 [cf_cv_define_sigwinch=yes],
3656 #undef _XOPEN_SOURCE
3657 #undef _POSIX_SOURCE
3658 #undef _POSIX_C_SOURCE
3659 #include <sys/types.h>
3660 #include <sys/signal.h>
3661 ],[int x = SIGWINCH; (void)x],
3662 [cf_cv_define_sigwinch=maybe],
3663 [cf_cv_define_sigwinch=no])
3667 if test "$cf_cv_define_sigwinch" = maybe ; then
3668 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3669 cf_cv_fixup_sigwinch=unknown
3671 while test "$cf_sigwinch" != 1
3674 #undef _XOPEN_SOURCE
3675 #undef _POSIX_SOURCE
3676 #undef _POSIX_C_SOURCE
3677 #include <sys/types.h>
3678 #include <sys/signal.h>
3680 #if SIGWINCH != $cf_sigwinch
3681 #error SIGWINCH is not $cf_sigwinch
3683 int x = SIGWINCH; (void)x],
3684 [cf_cv_fixup_sigwinch=$cf_sigwinch
3687 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3691 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3692 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3696 dnl ---------------------------------------------------------------------------
3697 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3699 dnl signal handler, but there are some gcc dependencies in that recommendation.
3701 AC_DEFUN([CF_SIG_ATOMIC_T],
3703 AC_MSG_CHECKING(for signal global datatype)
3704 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3706 "volatile sig_atomic_t" \
3711 #include <sys/types.h>
3717 static void handler(int sig)
3722 [signal(SIGINT, handler);
3724 [cf_cv_sig_atomic_t=$cf_type],
3725 [cf_cv_sig_atomic_t=no])
3726 test "$cf_cv_sig_atomic_t" != no && break
3729 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3730 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3732 dnl ---------------------------------------------------------------------------
3733 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3735 dnl Construct a search-list for a nonstandard header/lib-file
3736 dnl $1 = the variable to return as result
3737 dnl $2 = the package name
3738 dnl $3 = the subdirectory, e.g., bin, include or lib
3739 AC_DEFUN([CF_SUBDIR_PATH],
3743 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3745 for cf_subdir_prefix in \
3753 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3756 dnl ---------------------------------------------------------------------------
3757 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3758 dnl ------------------
3759 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3760 dnl older SCO configurations.
3761 AC_DEFUN([CF_SYS_TIME_SELECT],
3763 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3764 AC_CACHE_VAL(cf_cv_sys_time_select,[
3766 #include <sys/types.h>
3767 #ifdef HAVE_SYS_TIME_H
3768 #include <sys/time.h>
3770 #ifdef HAVE_SYS_SELECT_H
3771 #include <sys/select.h>
3773 ],[],[cf_cv_sys_time_select=yes],
3774 [cf_cv_sys_time_select=no])
3776 AC_MSG_RESULT($cf_cv_sys_time_select)
3777 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3779 dnl ---------------------------------------------------------------------------
3780 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3782 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3783 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3784 dnl but some packagers change this, breaking various applications.
3785 AC_DEFUN([CF_TERM_HEADER],[
3786 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3787 case "${cf_cv_ncurses_header}" in
3788 (*/ncurses.h|*/ncursesw.h)
3789 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3792 cf_term_header=term.h
3796 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3798 AC_TRY_COMPILE([#include <stdio.h>
3799 #include <${cf_cv_ncurses_header:-curses.h}>
3801 ],[int x = auto_left_margin; (void)x],[
3802 cf_cv_term_header="$cf_test"],[
3803 cf_cv_term_header=unknown
3805 test "$cf_cv_term_header" != unknown && break
3809 # Set definitions to allow ifdef'ing to accommodate subdirectories
3811 case "$cf_cv_term_header" in
3813 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3817 case "$cf_cv_term_header" in
3819 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3822 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3826 dnl ---------------------------------------------------------------------------
3827 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3829 dnl Define a top_builddir symbol, for applications that need an absolute path.
3830 AC_DEFUN([CF_TOP_BUILDDIR],
3832 top_builddir=ifelse($1,,`pwd`,$1)
3833 AC_SUBST(top_builddir)
3835 dnl ---------------------------------------------------------------------------
3836 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3838 dnl Check for type of function-pointer passed to tputs. Some old
3839 dnl implementations used functions that had different prototypes, making it
3840 dnl hard to compile portable programs using tputs.
3841 AC_DEFUN([CF_TPUTS_PROTO],[
3842 CF_CURSES_FUNCS(tputs)
3843 if test "x$cf_cv_func_tputs" = xyes
3846 for cf_arg in int char
3848 for cf_ret in int void
3850 if test "$cf_ret" = void
3852 cf_return="/* nothing */"
3854 cf_return="return value"
3857 #include <${cf_cv_ncurses_header:-curses.h}>
3858 #include <$cf_cv_term_header>
3860 static $cf_ret outc($cf_arg value) { $cf_return; }
3862 tputs("hello", 0, outc);
3863 ${cf_cv_main_return:-return}(0);
3865 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3866 cat >>confdefs.h <<EOF
3867 #define TPUTS_ARG $cf_arg
3868 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3869 #define TPUTS_RETURN(value) $cf_return
3875 test "$cf_done" = yes && break
3879 dnl ---------------------------------------------------------------------------
3880 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3882 dnl Trim extra base X libraries added as a workaround for inconsistent library
3883 dnl dependencies returned by "new" pkg-config files.
3884 AC_DEFUN([CF_TRIM_X_LIBS],[
3885 for cf_trim_lib in Xmu Xt X11
3888 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3889 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3890 CF_VERBOSE(..trimmed $LIBS)
3895 dnl ---------------------------------------------------------------------------
3896 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3897 dnl -----------------
3898 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3899 dnl available in that form.
3901 dnl $1 = package name, which may be a shell variable
3902 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3903 dnl $3 = logic to use if pkg-config does not have the package
3904 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3905 AC_REQUIRE([CF_PKG_CONFIG])
3907 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3908 CF_VERBOSE(found package $1)
3909 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3910 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3911 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3912 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3913 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3914 CF_ADD_LIBS($cf_pkgconfig_libs)
3915 ifelse([$2],,:,[$2])
3919 ifelse([$3],,:,[$3])
3922 dnl ---------------------------------------------------------------------------
3923 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
3924 dnl -------------------
3925 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3926 dnl can define it successfully.
3927 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3928 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3929 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
3930 [cf_cv_xopen_source=no],
3931 [cf_save="$CPPFLAGS"
3932 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3933 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
3934 [cf_cv_xopen_source=no],
3935 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3940 if test "$cf_cv_xopen_source" != no ; then
3941 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3942 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3943 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3944 CF_APPEND_CFLAGS($cf_temp_xopen_source)
3947 dnl ---------------------------------------------------------------------------
3948 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3950 dnl Make an uppercase version of a variable
3951 dnl $1=uppercase($2)
3952 AC_DEFUN([CF_UPPER],
3954 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3956 dnl ---------------------------------------------------------------------------
3957 dnl CF_UTF8_LIB version: 10 updated: 2023/01/11 04:05:23
3959 dnl Check for multibyte support, and if not found, utf8 compatibility library
3960 AC_DEFUN([CF_UTF8_LIB],
3962 AC_HAVE_HEADERS(wchar.h)
3963 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3964 cf_save_LIBS="$LIBS"
3966 $ac_includes_default
3971 [cf_cv_utf8_lib=yes],
3973 #include <libutf8.h>],[putwc(0,0);],utf8,
3974 [cf_cv_utf8_lib=add-on],
3975 [cf_cv_utf8_lib=no])
3978 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3980 if test "$cf_cv_utf8_lib" = "add-on" ; then
3981 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3982 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3983 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3984 CF_ADD_LIBS($cf_cv_library_file_utf8)
3987 dnl ---------------------------------------------------------------------------
3988 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3990 dnl Use AC_VERBOSE w/o the warnings
3991 AC_DEFUN([CF_VERBOSE],
3992 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3995 dnl ---------------------------------------------------------------------------
3996 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
3998 dnl Check if type wide-character type $1 is declared, and if so, which header
3999 dnl file is needed. The second parameter is used to set a shell variable when
4000 dnl the type is not found. The first parameter sets a shell variable for the
4002 AC_DEFUN([CF_WCHAR_TYPE],
4004 # This is needed on Tru64 5.0 to declare $1
4005 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
4010 #ifdef HAVE_LIBUTF8_H
4011 #include <libutf8.h>
4020 #ifdef HAVE_LIBUTF8_H
4021 #include <libutf8.h>
4025 [cf_cv_$1=unknown])])])
4027 if test "$cf_cv_$1" = yes ; then
4028 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
4033 # if we do not find $1 in either place, use substitution to provide a fallback.
4034 if test "$cf_cv_$1" = unknown ; then
4039 # if we find $1 in either place, use substitution to provide a fallback.
4040 if test "$cf_cv_$1" != unknown ; then
4045 dnl ---------------------------------------------------------------------------
4046 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4047 dnl ------------------
4048 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4050 AC_DEFUN([CF_WITH_CURSES_DIR],[
4052 AC_MSG_CHECKING(for specific curses-directory)
4053 AC_ARG_WITH(curses-dir,
4054 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4055 [cf_cv_curses_dir=$withval],
4056 [cf_cv_curses_dir=no])
4057 AC_MSG_RESULT($cf_cv_curses_dir)
4059 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4061 CF_PATH_SYNTAX(withval)
4062 if test -d "$cf_cv_curses_dir"
4064 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4065 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4069 dnl ---------------------------------------------------------------------------
4070 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
4071 dnl ----------------
4072 dnl Configure-option for dbmalloc. The optional parameter is used to override
4073 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4074 AC_DEFUN([CF_WITH_DBMALLOC],[
4075 CF_NO_LEAKS_OPTION(dbmalloc,
4076 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
4079 if test "$with_dbmalloc" = yes ; then
4080 AC_CHECK_HEADER(dbmalloc.h,
4081 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
4084 dnl ---------------------------------------------------------------------------
4085 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
4087 dnl Configure-option for dmalloc. The optional parameter is used to override
4088 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4089 AC_DEFUN([CF_WITH_DMALLOC],[
4090 CF_NO_LEAKS_OPTION(dmalloc,
4091 [ --with-dmalloc test: use Gray Watson's dmalloc library],
4094 if test "$with_dmalloc" = yes ; then
4095 AC_CHECK_HEADER(dmalloc.h,
4096 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
4099 dnl ---------------------------------------------------------------------------
4100 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
4101 dnl --------------------
4102 dnl Allow for overriding the basename of a library, i.e., the part to which
4103 dnl prefixes/suffixes are attached.
4105 dnl $1 = variable to set
4106 dnl $2 = option name
4107 dnl $3 = default basename for library, if omitted use $2
4108 AC_DEFUN([CF_WITH_LIB_BASENAME],
4110 AC_MSG_CHECKING(for desired basename for $2 library)
4111 AC_ARG_WITH($2-libname,
4112 [ --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
4113 [with_lib_basename=$withval],
4114 [with_lib_basename=ifelse($3,,$2,$3)])
4115 $1="$with_lib_basename"
4119 $1=ifelse($3,,$2,$3)
4125 AC_MSG_RESULT([$]$1)
4128 dnl ---------------------------------------------------------------------------
4129 dnl CF_WITH_NCURSES_ETC version: 6 updated: 2023/01/16 10:10:06
4130 dnl -------------------
4131 dnl Use this macro for programs which use any variant of "curses", e.g.,
4132 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
4133 dnl library (such as slang) should use a "--with-screen=XXX" option.
4135 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
4136 dnl of the macros inside this one - before this macro.
4137 define([CF_WITH_NCURSES_ETC],[
4142 AC_MSG_CHECKING(for specified curses library type)
4144 [ --with-screen=XXX use specified curses-libraries],
4145 [cf_cv_screen=$withval],[
4147 AC_ARG_WITH(ncursesw,
4148 [ --with-ncursesw use wide ncurses-libraries],
4149 [cf_cv_screen=ncursesw],[
4151 AC_ARG_WITH(ncurses,
4152 [ --with-ncurses use ncurses-libraries],
4153 [cf_cv_screen=ncurses],[
4155 AC_ARG_WITH(pdcurses,
4156 [ --with-pdcurses compile/link with pdcurses X11 library],
4157 [cf_cv_screen=pdcurses],[
4159 AC_ARG_WITH(curses-colr,
4160 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
4161 [cf_cv_screen=curses_colr],[
4163 AC_ARG_WITH(curses-5lib,
4164 [ --with-curses-5lib compile/link with SunOS 5lib curses],
4165 [cf_cv_screen=curses_5lib])])])])])])
4167 AC_MSG_RESULT($cf_cv_screen)
4169 case $cf_cv_screen in
4175 CF_NCURSES_CONFIG($cf_cv_screen)
4178 CF_NCURSES_CONFIG($cf_cv_screen)
4184 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4188 CF_NCURSES_PTHREADS($cf_cv_screen)
4189 AC_SUBST(cf_cv_screen)
4192 dnl ---------------------------------------------------------------------------
4193 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4194 dnl -----------------------
4195 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4196 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4197 dnl script to search for the X11/Xt header files to declare (or not) the
4198 dnl symbol needed to enable "const" in those header files. If that configure
4199 dnl option is not used, then those checks are unnecessary.
4200 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4201 AC_PROVIDE([AC_PATH_XTRA])
4202 AC_PROVIDE([AC_PATH_X])
4203 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4209 dnl ---------------------------------------------------------------------------
4210 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4211 dnl ----------------
4212 AC_DEFUN([CF_WITH_VALGRIND],[
4213 CF_NO_LEAKS_OPTION(valgrind,
4214 [ --with-valgrind test: use valgrind],
4217 dnl ---------------------------------------------------------------------------
4218 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
4220 dnl Handle configure option "--with-x11-rgb", setting these shell
4223 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4224 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4226 dnl Most Linux's use this:
4227 dnl /usr/share/X11/rgb.txt
4228 dnl Debian uses this:
4229 dnl /etc/X11/rgb.txt
4230 dnl DragonFlyBSD ports uses this:
4231 dnl /usr/pkg/lib/X11/rgb.txt
4232 dnl FreeBSD ports use these:
4233 dnl /usr/local/lib/X11/rgb.txt
4234 dnl /usr/local/share/X11/rgb.txt
4235 dnl Mandriva has these:
4236 dnl /usr/lib/X11/rgb.txt
4237 dnl /usr/lib64/X11/rgb.txt
4238 dnl NetBSD has these
4239 dnl /usr/X11R7/lib/X11/rgb.txt
4240 dnl OpenSolaris uses
4242 dnl /usr/X11/etc/X11/rgb.txt
4243 dnl /usr/X11/share/X11/rgb.txt
4244 dnl /usr/X11/lib/X11/rgb.txt
4246 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4247 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4249 dnl /usr/X11/etc/X11/rgb.txt
4250 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4251 dnl /usr/X11/lib/amd64/X11/rgb.txt
4252 dnl Solaris10 uses (in this order):
4253 dnl /usr/openwin/lib/X11/rgb.txt
4254 dnl /usr/X11/lib/X11/rgb.txt
4255 AC_DEFUN([CF_WITH_X11_RGB],[
4256 AC_MSG_CHECKING(for X11 rgb file)
4257 AC_ARG_WITH(x11-rgb,
4258 [ --with-x11-rgb=FILE file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
4259 [RGB_PATH=$withval],
4262 if test "x[$]RGB_PATH" = xauto
4264 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4266 /opt/local/share/X11/rgb.txt \
4267 /opt/X11/share/X11/rgb.txt \
4268 /usr/share/X11/rgb.txt \
4269 /usr/X11/share/X11/rgb.txt \
4270 /usr/X11/lib/X11/rgb.txt \
4271 /usr/lib/X11/rgb.txt \
4273 /usr/pkg/lib/X11/rgb.txt \
4274 /usr/X11R7/lib/X11/rgb.txt \
4275 /usr/X11R6/lib/X11/rgb.txt \
4276 /usr/X11R5/lib/X11/rgb.txt \
4277 /usr/X11R4/lib/X11/rgb.txt \
4278 /usr/local/lib/X11/rgb.txt \
4279 /usr/local/share/X11/rgb.txt \
4280 /usr/lib64/X11/rgb.txt
4282 if test -f "$cf_path" ; then
4289 CF_PATH_SYNTAX(cf_path)
4292 AC_MSG_RESULT($RGB_PATH)
4294 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4297 if test "$RGB_PATH" = no
4301 AC_SUBST(no_x11_rgb)
4303 dnl ---------------------------------------------------------------------------
4304 dnl CF_XOPEN_CURSES version: 18 updated: 2023/01/11 04:05:23
4306 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4307 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4309 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4310 dnl as getbegy(). The latter is better design, but the former is standard.
4311 AC_DEFUN([CF_XOPEN_CURSES],
4313 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4314 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4315 cf_cv_need_xopen_extension=unknown
4317 $ac_includes_default
4318 #include <${cf_cv_ncurses_header:-curses.h}>],[
4319 #if defined(NCURSES_VERSION_PATCH)
4320 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4324 #ifdef NCURSES_WIDECHAR
4325 make an error /* prefer to fall-through on the second checks */
4328 int check2 = curs_set((int)sizeof(check));
4329 long x = winnstr(stdscr, "", 0);
4332 getbegyx(stdscr, y1, x1);
4337 [cf_cv_need_xopen_extension=none],
4339 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4342 #define $cf_try_xopen_extension 1
4343 $ac_includes_default
4344 #include <${cf_cv_ncurses_header:-curses.h}>],[
4346 int check2 = curs_set((int)sizeof(check));
4347 long x = winnstr(stdscr, "", 0);
4349 getbegyx(stdscr, y1, x1);
4355 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4360 case "$cf_cv_need_xopen_extension" in
4362 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4367 dnl ---------------------------------------------------------------------------
4368 dnl CF_XOPEN_SOURCE version: 64 updated: 2023/02/18 17:41:25
4370 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4371 dnl or adapt to the vendor's definitions to get equivalent functionality,
4372 dnl without losing the common non-POSIX features.
4375 dnl $1 is the nominal value for _XOPEN_SOURCE
4376 dnl $2 is the nominal value for _POSIX_C_SOURCE
4377 AC_DEFUN([CF_XOPEN_SOURCE],[
4378 AC_REQUIRE([AC_CANONICAL_HOST])
4379 AC_REQUIRE([CF_POSIX_VISIBLE])
4381 if test "$cf_cv_posix_visible" = no; then
4383 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4384 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4389 cf_xopen_source="-D_ALL_SOURCE"
4392 cf_xopen_source="-D_APPLE_C_SOURCE"
4395 cf_xopen_source="-D_DARWIN_C_SOURCE"
4398 (freebsd*|dragonfly*|midnightbsd*)
4399 # 5.x headers associate
4400 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4401 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4402 cf_POSIX_C_SOURCE=200112L
4404 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4407 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4410 cf_xopen_source="-D_HPUX_SOURCE"
4413 cf_xopen_source="-D_SGI_SOURCE"
4416 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin|msys)
4417 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4420 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4423 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4425 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4428 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4431 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4432 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4433 # Abusing the conformance level is a workaround.
4434 AC_MSG_WARN(this system does not provide usable locale support)
4435 cf_xopen_source="-D_BSD_SOURCE"
4439 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4440 cf_xopen_source="-D_BSD_SOURCE"
4444 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4447 cf_xopen_source="-D_OSF_SOURCE"
4450 cf_xopen_source="-D_QNX_SOURCE"
4453 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4456 cf_xopen_source="-D__EXTENSIONS__"
4457 cf_cv_xopen_source=broken
4459 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4465 cf_save_xopen_cppflags="$CPPFLAGS"
4466 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4467 # Some of these niche implementations use copy/paste, double-check...
4468 if test "$cf_cv_xopen_source" != no ; then
4469 CF_VERBOSE(checking if _POSIX_C_SOURCE inteferes)
4470 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
4471 AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
4472 CPPFLAGS="$cf_save_xopen_cppflags"])
4477 if test -n "$cf_xopen_source" ; then
4478 CF_APPEND_CFLAGS($cf_xopen_source,true)
4481 dnl In anything but the default case, we may have system-specific setting
4482 dnl which is still not guaranteed to provide all of the entrypoints that
4483 dnl _XOPEN_SOURCE would yield.
4484 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4485 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4486 AC_TRY_COMPILE([#include <stdlib.h>],[
4487 #ifndef _XOPEN_SOURCE
4488 #error _XOPEN_SOURCE is not defined
4490 [cf_XOPEN_SOURCE_set=yes],
4491 [cf_XOPEN_SOURCE_set=no])
4492 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4493 if test "$cf_XOPEN_SOURCE_set" = yes
4495 AC_TRY_COMPILE([#include <stdlib.h>],[
4496 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4497 #error (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4499 [cf_XOPEN_SOURCE_set_ok=yes],
4500 [cf_XOPEN_SOURCE_set_ok=no])
4501 if test "$cf_XOPEN_SOURCE_set_ok" = no
4503 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4509 fi # cf_cv_posix_visible
4511 dnl ---------------------------------------------------------------------------
4512 dnl CF_X_ATHENA version: 25 updated: 2023/01/11 04:05:23
4514 dnl Check for Xaw (Athena) libraries
4516 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4517 AC_DEFUN([CF_X_ATHENA],
4519 cf_x_athena=${cf_x_athena:-Xaw}
4521 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4524 [ --with-Xaw3d link with Xaw 3d library])
4525 if test "$withval" = yes ; then
4532 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4534 AC_ARG_WITH(Xaw3dxft,
4535 [ --with-Xaw3dxft link with Xaw 3d xft library])
4536 if test "$withval" = yes ; then
4537 cf_x_athena=Xaw3dxft
4543 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4546 [ --with-neXtaw link with neXT Athena library])
4547 if test "$withval" = yes ; then
4554 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4556 AC_ARG_WITH(XawPlus,
4557 [ --with-XawPlus link with Athena-Plus library])
4558 if test "$withval" = yes ; then
4567 if test "$PKG_CONFIG" != none ; then
4569 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4570 for cf_athena_pkg in \
4573 ${cf_x_athena}-devel \
4575 lib${cf_x_athena}-devel
4577 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4578 cf_x_athena_lib="$cf_pkgconfig_libs"
4579 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4580 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4584 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4586 $ac_includes_default
4587 #include <X11/Xmu/CharSet.h>
4589 int check = XmuCompareISOLatin1("big", "small");
4591 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4593 if test "$cf_cv_xaw_compat" = no
4595 # workaround for broken ".pc" files...
4596 case "$cf_x_athena_lib" in
4600 CF_VERBOSE(work around broken package)
4602 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4603 CF_TRY_PKG_CONFIG(xmu,[
4605 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4607 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4618 if test -z "$cf_x_athena_lib" ; then
4621 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4622 CF_X_ATHENA_LIBS($cf_x_athena)
4625 dnl ---------------------------------------------------------------------------
4626 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4627 dnl --------------------
4628 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4629 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4630 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4632 AC_REQUIRE([AC_PATH_XTRA])
4633 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4636 for cf_path in default \
4637 /usr/contrib/X11R6 \
4638 /usr/contrib/X11R5 \
4642 if test -z "$cf_x_athena_inc" ; then
4643 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4644 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4645 if test "$cf_path" != default ; then
4646 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4647 AC_MSG_CHECKING(for $cf_test in $cf_path)
4649 AC_MSG_CHECKING(for $cf_test)
4652 #include <X11/Intrinsic.h>
4653 #include <$cf_test>],[],
4656 AC_MSG_RESULT($cf_result)
4657 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4658 if test "$cf_result" = yes ; then
4659 test "$cf_path" = default && cf_x_athena_inc=default
4660 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4666 if test -z "$cf_x_athena_inc" ; then
4667 AC_MSG_WARN([Unable to find Athena header files])
4668 elif test "$cf_x_athena_inc" != default ; then
4669 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4672 dnl ---------------------------------------------------------------------------
4673 dnl CF_X_ATHENA_LIBS version: 14 updated: 2023/01/11 04:05:23
4674 dnl ----------------
4675 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4676 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4677 AC_DEFUN([CF_X_ATHENA_LIBS],
4678 [AC_REQUIRE([CF_X_TOOLKIT])
4679 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4682 for cf_path in default \
4683 /usr/contrib/X11R6 \
4684 /usr/contrib/X11R5 \
4689 ${cf_x_athena_root} \
4690 ${cf_x_athena_root}7 \
4691 ${cf_x_athena_root}6
4695 "-l$cf_lib -lXpm -lXmu" \
4696 "-l${cf_lib}_s -lXmu_s"
4698 test -n "$cf_x_athena_lib" && break
4700 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4701 cf_test=XawSimpleMenuAddGlobalActions
4702 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4703 CF_ADD_LIBS($cf_libs)
4704 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4706 $ac_includes_default
4707 #include <X11/Intrinsic.h>
4708 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4710 $cf_test((XtAppContext) 0)],
4713 AC_MSG_RESULT($cf_result)
4714 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4716 if test "$cf_result" = yes ; then
4717 cf_x_athena_lib="$cf_libs"
4721 test -n "$cf_x_athena_lib" && break
4725 if test -z "$cf_x_athena_lib" ; then
4727 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4730 CF_ADD_LIBS($cf_x_athena_lib)
4731 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4732 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4734 dnl ---------------------------------------------------------------------------
4735 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4737 AC_DEFUN([CF_X_EXT],[
4738 CF_TRY_PKG_CONFIG(Xext,,[
4739 AC_CHECK_LIB(Xext,XextCreateExtension,
4740 [CF_ADD_LIB(Xext)])])
4742 dnl ---------------------------------------------------------------------------
4743 dnl CF_X_TOOLKIT version: 27 updated: 2023/01/11 04:05:23
4745 dnl Check for X Toolkit libraries
4746 AC_DEFUN([CF_X_TOOLKIT],
4748 AC_REQUIRE([AC_PATH_XTRA])
4749 AC_REQUIRE([CF_CHECK_CACHE])
4751 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4752 # in some cases has installed dummy files in the former, other cases replaced
4753 # it with a link to the new location). This complicates the configure script.
4754 # Check for that pitfall, and recover using pkg-config
4756 # If none of these are set, the configuration is almost certainly broken.
4757 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4759 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4760 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4761 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4762 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4764 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4769 CF_TRY_PKG_CONFIG(xt,[
4775 # we have an "xt" package, but it may omit Xt's dependency on X11
4776 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4778 $ac_includes_default
4779 #include <X11/Xlib.h>
4781 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4782 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4783 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4784 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4785 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4786 if test "$cf_cv_xt_x11_compat" = no
4788 CF_VERBOSE(work around broken X11 dependency)
4789 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4790 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4795 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4797 $ac_includes_default
4798 #include <X11/Shell.h>
4799 ],[int num = IceConnectionNumber(0); (void) num
4800 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4802 if test "$cf_cv_xt_ice_compat" = no
4804 # workaround for broken ".pc" files used for X Toolkit.
4805 case "x$X_PRE_LIBS" in
4811 CF_VERBOSE(work around broken ICE dependency)
4812 CF_TRY_PKG_CONFIG(ice,
4813 [CF_TRY_PKG_CONFIG(sm)],
4814 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4824 LDFLAGS="$X_LIBS $LDFLAGS"
4825 CF_CHECK_CFLAGS($X_CFLAGS)
4827 AC_CHECK_FUNC(XOpenDisplay,,[
4828 AC_CHECK_LIB(X11,XOpenDisplay,
4829 [CF_ADD_LIB(X11)])])
4831 AC_CHECK_FUNC(XtAppInitialize,,[
4832 AC_CHECK_LIB(Xt, XtAppInitialize,
4833 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4835 LIBS="-lXt $LIBS"])])
4838 if test "$cf_have_X_LIBS" = no ; then
4840 [Unable to successfully link X Toolkit library (-lXt) with
4841 test program. You will have to check and add the proper libraries by hand
4845 dnl ---------------------------------------------------------------------------
4846 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4848 dnl Attempt to make a copy of a curses data item. This is needed in the
4849 dnl check-data configure tests when using ncurses, because the symbol may be
4850 dnl actually a function return-value. That could happen if the linker is
4851 dnl broken (does not resolve data-only references), or if ncurses is configured
4852 dnl to support re-entrant code.
4855 define([CF__CURSES_DATA],[
4856 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4857 const void *$1 = (const void *)($2);
4859 const void *$1 = &($2);
4861 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4863 dnl ---------------------------------------------------------------------------
4864 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4866 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4867 dnl are both available.
4868 define([CF__CURSES_HEAD],[
4870 #include <xcurses.h>
4871 char * XCursesProgramName = "test";
4873 #include <${cf_cv_ncurses_header:-curses.h}>
4874 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4875 #include <ncursesw/term.h>
4876 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4877 #include <ncurses/term.h>
4878 #elif defined(HAVE_TERM_H)
4883 dnl ---------------------------------------------------------------------------
4884 dnl CF__XOPEN_SOURCE_BODY version: 2 updated: 2023/02/18 17:41:25
4885 dnl ---------------------
4886 dnl body of test when test-compiling for _XOPEN_SOURCE check
4887 define([CF__XOPEN_SOURCE_BODY],
4889 #ifndef _XOPEN_SOURCE
4890 #error _XOPEN_SOURCE is not defined
4893 dnl ---------------------------------------------------------------------------
4894 dnl CF__XOPEN_SOURCE_HEAD version: 2 updated: 2023/02/18 17:41:25
4895 dnl ---------------------
4896 dnl headers to include when test-compiling for _XOPEN_SOURCE check
4897 define([CF__XOPEN_SOURCE_HEAD],
4899 $ac_includes_default