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 1.209 2023/01/07 17:54:26 tom Exp $
32 dnl Author: Thomas E. Dickey
34 dnl Macros used in NCURSES test programs auto-configuration script.
36 dnl These macros are maintained separately from NCURSES. The copyright on
37 dnl this file applies to the aggregation of macros and does not affect use of
38 dnl these macros in other applications.
40 dnl See these pages for additional information:
41 dnl https://invisible-island.net/autoconf/
42 dnl https://invisible-island.net/autoconf/my-autoconf.html
44 dnl ---------------------------------------------------------------------------
45 dnl ---------------------------------------------------------------------------
46 dnl AM_LANGINFO_CODESET version: 6 updated: 2021/01/01 16:53:59
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,
58 [AC_TRY_LINK([#include <langinfo.h>],
59 [char* cs = nl_langinfo(CODESET); (void)cs],
60 am_cv_langinfo_codeset=yes,
61 am_cv_langinfo_codeset=no)
63 if test "$am_cv_langinfo_codeset" = yes; then
64 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
65 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
68 dnl ---------------------------------------------------------------------------
69 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
70 dnl ------------------
71 dnl Conditionally generate script according to whether we're using a given autoconf.
73 dnl $1 = version to compare against
74 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
75 dnl $3 = code to use if AC_ACVERSION is older than $1.
76 define([CF_ACVERSION_CHECK],
78 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
79 ifdef([m4_version_compare],
80 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
81 [CF_ACVERSION_COMPARE(
82 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
83 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
84 dnl ---------------------------------------------------------------------------
85 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
86 dnl --------------------
87 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
88 dnl MAJOR2, MINOR2, TERNARY2,
89 dnl PRINTABLE2, not FOUND, FOUND)
90 define([CF_ACVERSION_COMPARE],
91 [ifelse(builtin([eval], [$2 < $5]), 1,
92 [ifelse([$8], , ,[$8])],
93 [ifelse([$9], , ,[$9])])])dnl
94 dnl ---------------------------------------------------------------------------
95 dnl CF_ADD_CFLAGS version: 15 updated: 2020/12/31 10:54:15
97 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
99 dnl $2 = if given makes this macro verbose.
101 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
102 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
103 dnl confused by the quotes (which require backslashes to keep them usable).
104 AC_DEFUN([CF_ADD_CFLAGS],
109 cf_new_extra_cppflags=
111 for cf_add_cflags in $1
113 case "$cf_fix_cppflags" in
115 case "$cf_add_cflags" in
116 (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
117 case "$cf_add_cflags" in
119 cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
121 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
122 && test -z "${cf_tst_cflags}" \
123 && cf_fix_cppflags=yes
125 if test "$cf_fix_cppflags" = yes ; then
126 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
128 elif test "${cf_tst_cflags}" = "\"'" ; then
129 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
138 case "$cf_add_cflags" in
140 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
141 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
144 CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
149 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
154 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
156 cf_tst_cflags=`echo "${cf_add_cflags}" |sed -e 's/^[[^"]]*"'\''//'`
158 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
159 && test -z "${cf_tst_cflags}" \
160 && cf_fix_cppflags=no
165 if test -n "$cf_new_cflags" ; then
166 ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
167 CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
170 if test -n "$cf_new_cppflags" ; then
171 ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
172 CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
175 if test -n "$cf_new_extra_cppflags" ; then
176 ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
177 CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
180 AC_SUBST(EXTRA_CPPFLAGS)
183 dnl ---------------------------------------------------------------------------
184 dnl CF_ADD_INCDIR version: 17 updated: 2021/09/04 06:35:04
186 dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it is
187 dnl redundant. We don't normally need to add -I/usr/local/include for gcc,
188 dnl but old versions (and some misinstalled ones) need that. To make things
189 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
190 dnl the include-path).
191 AC_DEFUN([CF_ADD_INCDIR],
193 if test -n "$1" ; then
194 for cf_add_incdir in $1
196 while test "$cf_add_incdir" != /usr/include
198 if test -d "$cf_add_incdir"
201 if test -n "$CFLAGS$CPPFLAGS" ; then
202 # a loop is needed to ensure we can add subdirs of existing dirs
203 for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
204 if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
205 cf_have_incdir=yes; break
210 if test "$cf_have_incdir" = no ; then
211 if test "$cf_add_incdir" = /usr/local/include ; then
214 cf_save_CPPFLAGS=$CPPFLAGS
215 CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
216 AC_TRY_COMPILE([#include <stdio.h>],
219 [cf_have_incdir=yes])
220 CPPFLAGS=$cf_save_CPPFLAGS
225 if test "$cf_have_incdir" = no ; then
226 CF_VERBOSE(adding $cf_add_incdir to include-path)
227 ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
229 cf_top_incdir=`echo "$cf_add_incdir" | sed -e 's%/include/.*$%/include%'`
230 test "$cf_top_incdir" = "$cf_add_incdir" && break
231 cf_add_incdir="$cf_top_incdir"
242 dnl ---------------------------------------------------------------------------
243 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
245 dnl Add a library, used to enforce consistency.
247 dnl $1 = library to add, without the "-l"
248 dnl $2 = variable to update (default $LIBS)
249 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
250 dnl ---------------------------------------------------------------------------
251 dnl CF_ADD_LIBDIR version: 11 updated: 2020/12/31 20:19:42
253 dnl Adds to the library-path
255 dnl Some machines have trouble with multiple -L options.
257 dnl $1 is the (list of) directory(s) to add
258 dnl $2 is the optional name of the variable to update (default LDFLAGS)
260 AC_DEFUN([CF_ADD_LIBDIR],
262 if test -n "$1" ; then
263 for cf_add_libdir in $1
265 if test "$cf_add_libdir" = /usr/lib ; then
267 elif test -d "$cf_add_libdir"
270 if test -n "$LDFLAGS$LIBS" ; then
271 # a loop is needed to ensure we can add subdirs of existing dirs
272 for cf_test_libdir in $LDFLAGS $LIBS ; do
273 if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
274 cf_have_libdir=yes; break
278 if test "$cf_have_libdir" = no ; then
279 CF_VERBOSE(adding $cf_add_libdir to library-path)
280 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
286 dnl ---------------------------------------------------------------------------
287 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
289 dnl Add one or more libraries, used to enforce consistency. Libraries are
290 dnl prepended to an existing list, since their dependencies are assumed to
291 dnl already exist in the list.
293 dnl $1 = libraries to add, with the "-l", etc.
294 dnl $2 = variable to update (default $LIBS)
295 AC_DEFUN([CF_ADD_LIBS],[
296 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
299 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
301 for cf_add_1lib in $cf_add_0lib; do
302 for cf_add_2lib in $cf_add_libs; do
303 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
308 test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
310 ifelse($2,,LIBS,[$2])="$cf_add_libs"
312 dnl ---------------------------------------------------------------------------
313 dnl CF_ADD_LIB_AFTER version: 3 updated: 2013/07/09 21:27:22
315 dnl Add a given library after another, e.g., following the one it satisfies a
318 dnl $1 = the first library
319 dnl $2 = its dependency
320 AC_DEFUN([CF_ADD_LIB_AFTER],[
321 CF_VERBOSE(...before $LIBS)
322 LIBS=`echo "$LIBS" | sed -e "s/[[ ]][[ ]]*/ /g" -e "s%$1 %$1 $2 %" -e 's% % %g'`
323 CF_VERBOSE(...after $LIBS)
325 dnl ---------------------------------------------------------------------------
326 dnl CF_ADD_SUBDIR_PATH version: 5 updated: 2020/12/31 20:19:42
327 dnl ------------------
328 dnl Append to a search-list for a nonstandard header/lib-file
329 dnl $1 = the variable to return as result
330 dnl $2 = the package name
331 dnl $3 = the subdirectory, e.g., bin, include or lib
332 dnl $4 = the directory under which we will test for subdirectories
333 dnl $5 = a directory that we do not want $4 to match
334 AC_DEFUN([CF_ADD_SUBDIR_PATH],
336 test "x$4" != "x$5" && \
338 ifelse([$5],NONE,,[{ test -z "$5" || test "x$5" = xNONE || test "x$4" != "x$5"; } &&]) {
339 test -n "$verbose" && echo " ... testing for $3-directories under $4"
340 test -d "$4/$3" && $1="[$]$1 $4/$3"
341 test -d "$4/$3/$2" && $1="[$]$1 $4/$3/$2"
342 test -d "$4/$3/$2/$3" && $1="[$]$1 $4/$3/$2/$3"
343 test -d "$4/$2/$3" && $1="[$]$1 $4/$2/$3"
344 test -d "$4/$2/$3/$2" && $1="[$]$1 $4/$2/$3/$2"
347 dnl ---------------------------------------------------------------------------
348 dnl CF_APPEND_CFLAGS version: 3 updated: 2021/09/05 17:25:40
350 dnl Use CF_ADD_CFLAGS after first checking for potential redefinitions.
351 dnl $1 = flags to add
352 dnl $2 = if given makes this macro verbose.
353 define([CF_APPEND_CFLAGS],
355 for cf_add_cflags in $1
357 case "x$cf_add_cflags" in
359 CF_REMOVE_CFLAGS($cf_add_cflags,CFLAGS,[$2])
360 CF_REMOVE_CFLAGS($cf_add_cflags,CPPFLAGS,[$2])
363 CF_ADD_CFLAGS([$cf_add_cflags],[$2])
366 dnl ---------------------------------------------------------------------------
367 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
369 dnl use this macro for appending text without introducing an extra blank at
371 define([CF_APPEND_TEXT],
373 test -n "[$]$1" && $1="[$]$1 "
376 dnl ---------------------------------------------------------------------------
377 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
379 dnl Allow user to disable a normally-on option.
380 AC_DEFUN([CF_ARG_DISABLE],
381 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
382 dnl ---------------------------------------------------------------------------
383 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
385 dnl Allow user to enable a normally-off option.
386 AC_DEFUN([CF_ARG_ENABLE],
387 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
388 dnl ---------------------------------------------------------------------------
389 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
391 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
397 dnl $3 = action to perform if option is not default
398 dnl $4 = action if perform if option is default
399 dnl $5 = default option value (either 'yes' or 'no')
400 AC_DEFUN([CF_ARG_OPTION],
401 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
402 if test "$enableval" != "$5" ; then
404 ,[ $3]) ifelse([$4],,,[
407 fi],[enableval=$5 ifelse([$4],,,[
411 dnl ---------------------------------------------------------------------------
412 dnl CF_C11_NORETURN version: 3 updated: 2021/03/28 11:36:23
414 AC_DEFUN([CF_C11_NORETURN],
416 AC_MSG_CHECKING(if you want to use C11 _Noreturn feature)
417 CF_ARG_ENABLE(stdnoreturn,
418 [ --enable-stdnoreturn enable C11 _Noreturn feature for diagnostics],
419 [enable_stdnoreturn=yes],
420 [enable_stdnoreturn=no])
421 AC_MSG_RESULT($enable_stdnoreturn)
423 if test $enable_stdnoreturn = yes; then
424 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
428 #include <stdnoreturn.h>
429 static _Noreturn void giveup(void) { exit(0); }
431 [if (feof(stdin)) giveup()],
432 cf_cv_c11_noreturn=yes,
433 cf_cv_c11_noreturn=no)
436 cf_cv_c11_noreturn=no,
439 if test "$cf_cv_c11_noreturn" = yes; then
440 AC_DEFINE(HAVE_STDNORETURN_H, 1,[Define if <stdnoreturn.h> header is available and working])
441 AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
447 AC_SUBST(HAVE_STDNORETURN_H)
448 AC_SUBST(STDC_NORETURN)
450 dnl ---------------------------------------------------------------------------
451 dnl CF_CC_ENV_FLAGS version: 10 updated: 2020/12/31 18:40:20
453 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
454 dnl into CC. This will not help with broken scripts that wrap the compiler
455 dnl with options, but eliminates a more common category of user confusion.
457 dnl In particular, it addresses the problem of being able to run the C
458 dnl preprocessor in a consistent manner.
460 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
461 dnl the nuisance of having inconsistent settings for compiler and preprocessor
462 dnl outweighs that limitation.
463 AC_DEFUN([CF_CC_ENV_FLAGS],
465 # This should have been defined by AC_PROG_CC
468 AC_MSG_CHECKING(\$CFLAGS variable)
471 AC_MSG_RESULT(broken)
472 AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
475 for cf_arg in $cf_flags
477 CF_ADD_CFLAGS($cf_arg)
485 AC_MSG_CHECKING(\$CC variable)
488 AC_MSG_RESULT(broken)
489 AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
491 cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
492 cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
494 for cf_arg in $cf_flags
498 CF_ADD_CFLAGS($cf_arg)
505 CF_VERBOSE(resulting CC: '$CC')
506 CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
507 CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
514 dnl ---------------------------------------------------------------------------
515 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
517 dnl Check if we're accidentally using a cache from a different machine.
518 dnl Derive the system name, as a check for reusing the autoconf cache.
520 dnl If we've packaged config.guess and config.sub, run that (since it does a
521 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
522 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
523 dnl which is useful in cross-compiles.
525 dnl Note: we would use $ac_config_sub, but that is one of the places where
526 dnl autoconf 2.5x broke compatibility with autoconf 2.13
527 AC_DEFUN([CF_CHECK_CACHE],
529 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
530 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
531 system_name="$host_os"
533 system_name="`(uname -s -r) 2>/dev/null`"
534 if test -z "$system_name" ; then
535 system_name="`(hostname) 2>/dev/null`"
538 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
539 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
541 test -z "$system_name" && system_name="$cf_cv_system_name"
542 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
544 if test ".$system_name" != ".$cf_cv_system_name" ; then
545 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
546 AC_MSG_ERROR("Please remove config.cache and try again.")
549 dnl ---------------------------------------------------------------------------
550 dnl CF_CHECK_CFLAGS version: 4 updated: 2021/01/02 19:22:58
552 dnl Conditionally add to $CFLAGS and $CPPFLAGS values which are derived from
553 dnl a build-configuration such as imake. These have the pitfall that they
554 dnl often contain compiler-specific options which we cannot use, mixed with
555 dnl preprocessor options that we usually can.
556 AC_DEFUN([CF_CHECK_CFLAGS],
558 CF_VERBOSE(checking additions to CFLAGS)
559 cf_check_cflags="$CFLAGS"
560 cf_check_cppflags="$CPPFLAGS"
561 CF_ADD_CFLAGS($1,yes)
562 if test "x$cf_check_cflags" != "x$CFLAGS" ; then
563 AC_TRY_LINK([#include <stdio.h>],[printf("Hello world");],,
564 [CF_VERBOSE(test-compile failed. Undoing change to \$CFLAGS)
565 if test "x$cf_check_cppflags" != "x$CPPFLAGS" ; then
566 CF_VERBOSE(but keeping change to \$CPPFLAGS)
568 CFLAGS="$cf_check_cflags"])
571 dnl ---------------------------------------------------------------------------
572 dnl CF_CHECK_CURSES_LIB version: 4 updated: 2021/09/05 17:25:40
573 dnl -------------------
574 dnl $1 = nominal library name, used also for header lookup
575 dnl $2 = suffix to append to library name
576 dnl $3 = function to check for using AC_CHECK_LIB
577 dnl $4 = optional parameter list for $3
578 AC_DEFUN([CF_CHECK_CURSES_LIB],
580 AC_REQUIRE([CF_PKG_CONFIG])
582 cf_have_curses_lib=no
584 : ${NCURSES_CONFIG_PKG:=none}
585 if test "x${NCURSES_CONFIG_PKG}" = xnone; then
587 elif test "x${PKG_CONFIG:=none}" != xnone; then
588 AC_MSG_CHECKING(pkg-config for $1$2)
589 if "$PKG_CONFIG" --exists "$1$2" ; then
592 AC_MSG_CHECKING(if the $1$2 package files work)
594 cf_save_CFLAGS="$CFLAGS"
595 cf_save_CPPFLAGS="$CPPFLAGS"
598 CF_APPEND_CFLAGS(`$PKG_CONFIG --cflags "$1$2"`)
599 CF_ADD_LIBS(`$PKG_CONFIG --libs "$1$2"`)
601 AC_TRY_LINK([#include <$1.h>],
602 [(void) $3 ( ]ifelse([$4],,,[[$4]])[ );],
603 [AC_TRY_RUN([#include <$1.h>
605 { (void) $3 ( ]ifelse([$4],,,[[$4]])[ ); return 0; }],
606 [cf_have_curses_lib=yes],
607 [cf_have_curses_lib=no],
608 [cf_have_curses_lib=maybe])],
609 [cf_have_curses_lib=no])
610 AC_MSG_RESULT($cf_have_curses_lib)
611 test "$cf_have_curses_lib" = maybe && cf_have_curses_lib=yes
612 if test "$cf_have_curses_lib" = "yes"
614 CF_UPPER(cf_upper,have_lib$1)
615 AC_DEFINE_UNQUOTED($cf_upper,1)
617 CFLAGS="$cf_save_CFLAGS"
618 CPPFLAGS="$cf_save_CPPFLAGS"
623 if test "$cf_have_curses_lib" = no; then
624 AC_CHECK_LIB($1$2,$3,[
625 CF_UPPER(cf_upper,have_lib$1)
627 AC_DEFINE_UNQUOTED($cf_upper,1)])
630 dnl ---------------------------------------------------------------------------
631 dnl CF_CLANG_COMPILER version: 8 updated: 2021/01/01 13:31:04
632 dnl -----------------
633 dnl Check if the given compiler is really clang. clang's C driver defines
634 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
635 dnl not ignore some gcc options.
637 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
638 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
639 dnl the wrappers for gcc and g++ warnings.
641 dnl $1 = GCC (default) or GXX
642 dnl $2 = CLANG_COMPILER (default)
643 dnl $3 = CFLAGS (default) or CXXFLAGS
644 AC_DEFUN([CF_CLANG_COMPILER],[
645 ifelse([$2],,CLANG_COMPILER,[$2])=no
647 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
648 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
649 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
655 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
657 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
658 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
663 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
665 (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
666 AC_MSG_WARN(replacing broken compiler alias $CC)
667 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
672 AC_MSG_CHECKING(version of $CC)
673 CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
674 test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
675 AC_MSG_RESULT($CLANG_VERSION)
677 for cf_clang_opt in \
679 -Wno-error=implicit-function-declaration
681 AC_MSG_CHECKING(if option $cf_clang_opt works)
682 cf_save_CFLAGS="$CFLAGS"
683 CFLAGS="$CFLAGS $cf_clang_opt"
685 #include <stdio.h>],[
686 printf("hello!\\n");],[
687 cf_clang_optok=yes],[
689 AC_MSG_RESULT($cf_clang_optok)
690 CFLAGS="$cf_save_CFLAGS"
691 if test "$cf_clang_optok" = yes; then
692 CF_VERBOSE(adding option $cf_clang_opt)
693 CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
698 dnl ---------------------------------------------------------------------------
699 dnl CF_CONST_X_STRING version: 7 updated: 2021/06/07 17:39:17
700 dnl -----------------
701 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
702 dnl character-strings.
704 dnl It is ambiguous because the specification accommodated the pre-ANSI
705 dnl compilers bundled by more than one vendor in lieu of providing a standard C
706 dnl compiler other than by costly add-ons. Because of this, the specification
707 dnl did not take into account the use of const for telling the compiler that
708 dnl string literals would be in readonly memory.
710 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
711 dnl let the compiler decide how to represent Xt's strings which were #define'd.
712 dnl That does not solve the problem of using the block of Xt's strings which
713 dnl are compiled into the library (and is less efficient than one might want).
715 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
716 dnl when compiling the library and compiling using the library, to tell the
717 dnl compiler that String is const.
718 AC_DEFUN([CF_CONST_X_STRING],
720 AC_REQUIRE([AC_PATH_XTRA])
722 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
727 #include <X11/Intrinsic.h>
729 [String foo = malloc(1); free((void*)foo)],[
731 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
734 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
735 #undef XTSTRINGDEFINES /* X11R5 and later */
737 #include <X11/Intrinsic.h>
738 ],[String foo = malloc(1); *foo = 0],[
739 cf_cv_const_x_string=no
741 cf_cv_const_x_string=yes
745 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
747 case "$cf_cv_const_x_string" in
749 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
752 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
758 dnl ---------------------------------------------------------------------------
759 dnl CF_CURSES_ACS_MAP version: 8 updated: 2021/01/04 19:45:09
760 dnl -----------------
761 dnl Check for likely values of acs_map[]:
762 AC_DEFUN([CF_CURSES_ACS_MAP],
764 AC_REQUIRE([CF_NCURSES_WRAP_PREFIX])dnl
765 AC_CACHE_CHECK(for alternate character set array, cf_cv_curses_acs_map,[
766 cf_cv_curses_acs_map=unknown
767 for name in acs_map _acs_map __acs_map ${NCURSES_WRAP_PREFIX}acs_map
770 #include <${cf_cv_ncurses_header:-curses.h}>
772 ${name}['k'] = ACS_PLUS
773 ],[cf_cv_curses_acs_map=$name; break])
777 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_])
779 dnl ---------------------------------------------------------------------------
780 dnl CF_CURSES_CHECK_DATA version: 10 updated: 2021/01/04 19:45:09
781 dnl --------------------
782 dnl Check if curses.h defines the given data/variable.
783 dnl Use this after CF_NCURSES_CONFIG or CF_CURSES_CONFIG.
785 dnl $1 = data item(s) to check for
786 dnl $2 = action on success, e.g., "break" to quit checking a series of choices
787 AC_DEFUN([CF_CURSES_CHECK_DATA],
791 AC_MSG_CHECKING(for data $cf_data declaration in ${cf_cv_ncurses_header:-curses.h})
793 AC_TRY_COMPILE(CF__CURSES_HEAD,
794 CF__CURSES_DATA(foo,$cf_data)
797 AC_MSG_RESULT($cf_result)
799 if test "$cf_result" = yes ; then
800 CF_UPPER(cf_result,have_curses_data_$cf_data)
801 AC_DEFINE_UNQUOTED($cf_result)
804 AC_MSG_CHECKING(for data $cf_data in library)
805 # BSD linkers insist on making weak linkage, but resolve at runtime.
806 AC_TRY_RUN(CF__CURSES_HEAD
808 extern char $cf_data;
811 ]CF__CURSES_DATA(foo,$cf_data)[
812 ${cf_cv_main_return:-return}(foo == 0);
816 AC_TRY_LINK(CF__CURSES_HEAD
817 [extern char $cf_data;],[
819 ]CF__CURSES_DATA(foo,$cf_data)[
820 ${cf_cv_main_return:-return}(foo == 0);
822 ],[cf_result=yes],[cf_result=no])
824 AC_MSG_RESULT($cf_result)
825 if test "$cf_result" = yes ; then
826 CF_UPPER(cf_result,decl_curses_data_$cf_data)
827 AC_DEFINE_UNQUOTED($cf_result)
828 # do not exit loop here, since we prefer system's declarations
833 dnl ---------------------------------------------------------------------------
834 dnl CF_CURSES_CHECK_TYPE version: 5 updated: 2021/01/04 19:45:09
835 dnl --------------------
836 dnl Check if curses.h defines the given type
837 AC_DEFUN([CF_CURSES_CHECK_TYPE],
839 AC_MSG_CHECKING(for type $1 in ${cf_cv_ncurses_header:-curses.h})
841 #ifndef _XOPEN_SOURCE_EXTENDED
842 #define _XOPEN_SOURCE_EXTENDED
844 #include <${cf_cv_ncurses_header:-curses.h}>],[
846 ],cf_result=yes,cf_result=no)
847 AC_MSG_RESULT($cf_result)
848 if test "$cf_result" = yes ; then
849 CF_UPPER(cf_result,have_type_$1)
850 AC_DEFINE_UNQUOTED($cf_result,1,[Define to 1 if we have type $1])
852 AC_DEFINE_UNQUOTED($1,$2,[Define to appropriate type if $1 is not declared])
855 dnl ---------------------------------------------------------------------------
856 dnl CF_CURSES_CONFIG version: 2 updated: 2006/10/29 11:06:27
858 dnl Tie together the configure-script macros for curses. It may be ncurses,
859 dnl but unless asked, we do not make a special search for ncurses. However,
860 dnl still check for the ncurses version number, for use in other macros.
861 AC_DEFUN([CF_CURSES_CONFIG],
867 dnl ---------------------------------------------------------------------------
868 dnl CF_CURSES_CPPFLAGS version: 14 updated: 2021/01/02 09:31:20
869 dnl ------------------
870 dnl Look for the curses headers.
871 AC_DEFUN([CF_CURSES_CPPFLAGS],[
873 AC_CACHE_CHECK(for extra include directories,cf_cv_curses_incdir,[
874 cf_cv_curses_incdir=no
877 if test "x$cf_cv_screen" = "xcurses_colr"
879 test -d /usr/include/curses_colr && \
880 cf_cv_curses_incdir="-I/usr/include/curses_colr"
884 if test "x$cf_cv_screen" = "xcurses_5lib"
886 test -d /usr/5lib && \
887 test -d /usr/5include && \
888 cf_cv_curses_incdir="-I/usr/5include"
893 if test "$cf_cv_curses_incdir" != no
895 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_curses_incdir)
901 dnl ---------------------------------------------------------------------------
902 dnl CF_CURSES_FUNCS version: 20 updated: 2020/12/31 20:19:42
904 dnl Curses-functions are a little complicated, since a lot of them are macros.
905 AC_DEFUN([CF_CURSES_FUNCS],
907 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
908 AC_REQUIRE([CF_XOPEN_CURSES])
909 AC_REQUIRE([CF_CURSES_TERM_H])
910 AC_REQUIRE([CF_CURSES_UNCTRL_H])
913 CF_UPPER(cf_tr_func,$cf_func)
914 AC_MSG_CHECKING(for ${cf_func})
915 CF_MSG_LOG(${cf_func})
916 AC_CACHE_VAL(cf_cv_func_$cf_func,[
917 eval cf_result='$ac_cv_func_'$cf_func
918 if test ".$cf_result" != ".no"; then
919 AC_TRY_LINK(CF__CURSES_HEAD,
922 long foo = (long)(&${cf_func});
923 fprintf(stderr, "testing linkage of $cf_func:%p\\n", (void *)foo);
924 if (foo + 1234L > 5678L)
925 ${cf_cv_main_return:-return}(foo != 0);
931 eval 'cf_cv_func_'$cf_func'="$cf_result"'
933 # use the computed/retrieved cache-value:
934 eval 'cf_result=$cf_cv_func_'$cf_func
935 AC_MSG_RESULT($cf_result)
936 if test "$cf_result" != no; then
937 AC_DEFINE_UNQUOTED(HAVE_${cf_tr_func})
941 dnl ---------------------------------------------------------------------------
942 dnl CF_CURSES_HEADER version: 6 updated: 2022/12/02 20:06:52
944 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
945 dnl variations of ncurses' installs.
947 dnl $1 = ncurses when looking for ncurses, or is empty
948 AC_DEFUN([CF_CURSES_HEADER],[
949 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
950 cf_cv_ncurses_header=none
952 ncurses.h ifelse($1,,,[$1/ncurses.h]) \
953 curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
955 AC_TRY_COMPILE([#include <${cf_header}>],
956 [initscr(); endwin()],
957 [cf_cv_ncurses_header=$cf_header; break],[])
961 if test "$cf_cv_ncurses_header" = none ; then
962 AC_MSG_ERROR(No curses header-files found)
965 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
966 AC_CHECK_HEADERS($cf_cv_ncurses_header)
968 dnl ---------------------------------------------------------------------------
969 dnl CF_CURSES_LIBS version: 45 updated: 2022/12/02 20:06:52
971 dnl Look for the curses libraries. Older curses implementations may require
972 dnl termcap/termlib to be linked as well. Call CF_CURSES_CPPFLAGS first.
973 AC_DEFUN([CF_CURSES_LIBS],[
975 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
976 AC_MSG_CHECKING(if we have identified curses libraries)
977 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
978 [initscr(); endwin()],
981 AC_MSG_RESULT($cf_result)
983 if test "$cf_result" = no ; then
986 AC_CHECK_LIB(mytinfo,tgoto,[CF_ADD_LIBS(-lmytinfo)])
989 # Looking at HPUX 10.20, the Hcurses library is the oldest (1997), cur_colr
990 # next (1998), and xcurses "newer" (2000). There is no header file for
991 # Hcurses; the subdirectory curses_colr has the headers (curses.h and
992 # term.h) for cur_colr
993 if test "x$cf_cv_screen" = "xcurses_colr"
995 AC_CHECK_LIB(cur_colr,initscr,[
996 CF_ADD_LIBS(-lcur_colr)
997 ac_cv_func_initscr=yes
999 AC_CHECK_LIB(Hcurses,initscr,[
1000 # HP's header uses __HP_CURSES, but user claims _HP_CURSES.
1001 CF_ADD_LIBS(-lHcurses)
1002 CF_APPEND_TEXT(CPPFLAGS,-D__HP_CURSES -D_HP_CURSES)
1003 ac_cv_func_initscr=yes
1008 case `arch 2>/dev/null` in
1012 CF_ADD_LIBDIR(/lib64)
1023 if test "x$cf_cv_screen" = "xcurses_5lib"
1025 if test -d /usr/5lib ; then
1026 CF_ADD_LIBDIR(/usr/5lib)
1027 CF_ADD_LIBS(-lcurses -ltermcap)
1030 ac_cv_func_initscr=yes
1034 if test ".$ac_cv_func_initscr" != .yes ; then
1035 cf_save_LIBS="$LIBS"
1037 if test ".${cf_cv_ncurses_version:-no}" != .no
1039 cf_check_list="ncurses curses cursesX"
1041 cf_check_list="cursesX curses ncurses"
1044 # Check for library containing tgoto. Do this before curses library
1045 # because it may be needed to link the test-case for initscr.
1046 if test "x$cf_term_lib" = x
1048 AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
1049 for cf_term_lib in $cf_check_list otermcap termcap tinfo termlib unknown
1051 AC_CHECK_LIB($cf_term_lib,tgoto,[
1052 : "${cf_nculib_root:=$cf_term_lib}"
1059 # Check for library containing initscr
1060 test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
1061 if test "x$cf_curs_lib" = x
1063 for cf_curs_lib in $cf_check_list xcurses jcurses pdcurses unknown
1065 LIBS="-l$cf_curs_lib $cf_save_LIBS"
1066 if test "$cf_term_lib" = unknown || test "$cf_term_lib" = "$cf_curs_lib" ; then
1067 AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
1068 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1072 AC_MSG_RESULT($cf_result)
1073 test "$cf_result" = yes && break
1074 elif test "$cf_curs_lib" = "$cf_term_lib" ; then
1076 elif test "$cf_term_lib" != predefined ; then
1077 AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
1078 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1079 [initscr(); endwin();],
1082 LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
1083 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1088 AC_MSG_RESULT($cf_result)
1089 test "$cf_result" != error && break
1093 test "$cf_curs_lib" = unknown && AC_MSG_ERROR(no curses library found)
1098 dnl ---------------------------------------------------------------------------
1099 dnl CF_CURSES_TERM_H version: 15 updated: 2021/01/02 09:31:20
1100 dnl ----------------
1101 dnl SVr4 curses should have term.h as well (where it puts the definitions of
1102 dnl the low-level interface). This may not be true in old/broken implementations,
1103 dnl as well as in misconfigured systems (e.g., gcc configured for Solaris 2.4
1104 dnl running with Solaris 2.5.1).
1105 AC_DEFUN([CF_CURSES_TERM_H],
1107 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1109 AC_CACHE_CHECK(for term.h, cf_cv_term_header,[
1111 # If we found <ncurses/curses.h>, look for <ncurses/term.h>, but always look
1112 # for <term.h> if we do not find the variant.
1114 cf_header_list="term.h ncurses/term.h ncursesw/term.h"
1116 case "${cf_cv_ncurses_header:-curses.h}" in
1118 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`term.h
1119 cf_header_list="$cf_header_item $cf_header_list"
1123 for cf_header in $cf_header_list
1126 #include <${cf_cv_ncurses_header:-curses.h}>
1127 #include <${cf_header}>],
1128 [WINDOW *x; (void)x],
1129 [cf_cv_term_header=$cf_header
1131 [cf_cv_term_header=no])
1134 case "$cf_cv_term_header" in
1136 # If curses is ncurses, some packagers still mess it up by trying to make
1137 # us use GNU termcap. This handles the most common case.
1138 for cf_header in ncurses/term.h ncursesw/term.h
1141 #include <${cf_cv_ncurses_header:-curses.h}>
1142 #ifdef NCURSES_VERSION
1143 #include <${cf_header}>
1147 [WINDOW *x; (void)x],
1148 [cf_cv_term_header=$cf_header
1150 [cf_cv_term_header=no])
1156 case "$cf_cv_term_header" in
1158 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
1161 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
1164 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
1168 dnl ---------------------------------------------------------------------------
1169 dnl CF_CURSES_UNCTRL_H version: 8 updated: 2021/01/02 09:31:20
1170 dnl ------------------
1171 dnl Any X/Open curses implementation must have unctrl.h, but ncurses packages
1172 dnl may put it in a subdirectory (along with ncurses' other headers, of
1173 dnl course). Packages which put the headers in inconsistent locations are
1175 AC_DEFUN([CF_CURSES_UNCTRL_H],
1177 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1179 AC_CACHE_CHECK(for unctrl.h, cf_cv_unctrl_header,[
1181 # If we found <ncurses/curses.h>, look for <ncurses/unctrl.h>, but always look
1182 # for <unctrl.h> if we do not find the variant.
1184 cf_header_list="unctrl.h ncurses/unctrl.h ncursesw/unctrl.h"
1186 case "${cf_cv_ncurses_header:-curses.h}" in
1188 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`unctrl.h
1189 cf_header_list="$cf_header_item $cf_header_list"
1193 for cf_header in $cf_header_list
1196 #include <${cf_cv_ncurses_header:-curses.h}>
1197 #include <${cf_header}>],
1198 [WINDOW *x; (void)x],
1199 [cf_cv_unctrl_header=$cf_header
1201 [cf_cv_unctrl_header=no])
1205 case "$cf_cv_unctrl_header" in
1207 AC_MSG_WARN(unctrl.h header not found)
1211 case "$cf_cv_unctrl_header" in
1213 AC_DEFINE(HAVE_UNCTRL_H,1,[Define to 1 if we have unctrl.h])
1216 AC_DEFINE(HAVE_NCURSES_UNCTRL_H,1,[Define to 1 if we have ncurses/unctrl.h])
1219 AC_DEFINE(HAVE_NCURSESW_UNCTRL_H,1,[Define to 1 if we have ncursesw/unctrl.h])
1223 dnl ---------------------------------------------------------------------------
1224 dnl CF_CURSES_WACS_MAP version: 8 updated: 2021/01/04 19:45:09
1225 dnl ------------------
1226 dnl Check for likely values of wacs_map[].
1227 AC_DEFUN([CF_CURSES_WACS_MAP],
1229 AC_CACHE_CHECK(for wide alternate character set array, cf_cv_curses_wacs_map,[
1230 cf_cv_curses_wacs_map=unknown
1231 for name in wacs_map _wacs_map __wacs_map _nc_wacs _wacs_char
1234 #ifndef _XOPEN_SOURCE_EXTENDED
1235 #define _XOPEN_SOURCE_EXTENDED
1237 #include <${cf_cv_ncurses_header:-curses.h}>],
1238 [void *foo = &(${name}['k']); (void)foo],
1239 [cf_cv_curses_wacs_map=$name
1243 test "$cf_cv_curses_wacs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_WACS_ARRAY,$cf_cv_curses_wacs_map,[Define to name of (n)curses wide-character array])
1245 dnl ---------------------------------------------------------------------------
1246 dnl CF_CURSES_WACS_SYMBOLS version: 4 updated: 2021/01/04 19:45:09
1247 dnl ----------------------
1248 dnl Do a check to see if the WACS_xxx constants are defined compatibly with
1249 dnl X/Open Curses. In particular, NetBSD's implementation of the WACS_xxx
1250 dnl constants is broken since those constants do not point to cchar_t's.
1251 AC_DEFUN([CF_CURSES_WACS_SYMBOLS],
1253 AC_REQUIRE([CF_CURSES_WACS_MAP])
1255 AC_CACHE_CHECK(for wide alternate character constants, cf_cv_curses_wacs_symbols,[
1256 cf_cv_curses_wacs_symbols=no
1257 if test "$cf_cv_curses_wacs_map" != unknown
1260 #ifndef _XOPEN_SOURCE_EXTENDED
1261 #define _XOPEN_SOURCE_EXTENDED
1263 #include <${cf_cv_ncurses_header:-curses.h}>],
1264 [cchar_t *foo = WACS_PLUS;
1265 ${cf_cv_curses_wacs_map}['k'] = *WACS_PLUS; (void)foo],
1266 [cf_cv_curses_wacs_symbols=yes])
1269 #ifndef _XOPEN_SOURCE_EXTENDED
1270 #define _XOPEN_SOURCE_EXTENDED
1272 #include <${cf_cv_ncurses_header:-curses.h}>],
1273 [cchar_t *foo = WACS_PLUS; (void)foo],
1274 [cf_cv_curses_wacs_symbols=yes])
1278 test "$cf_cv_curses_wacs_symbols" != no && AC_DEFINE(CURSES_WACS_SYMBOLS,1,[Define to 1 if (n)curses supports wide-character WACS_ symbols])
1280 dnl ---------------------------------------------------------------------------
1281 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1283 dnl "dirname" is not portable, so we fake it with a shell script.
1284 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1285 dnl ---------------------------------------------------------------------------
1286 dnl CF_DISABLE_ECHO version: 14 updated: 2021/09/04 06:35:04
1288 dnl You can always use "make -n" to see the actual options, but it is hard to
1289 dnl pick out/analyze warning messages when the compile-line is long.
1292 dnl ECHO_LT - symbol to control if libtool is verbose
1293 dnl ECHO_LD - symbol to prefix "cc -o" lines
1294 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1295 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
1296 dnl ECHO_CC - symbol to put before any "cc" line
1298 AC_DEFUN([CF_DISABLE_ECHO],[
1299 AC_MSG_CHECKING(if you want to see long compiling messages)
1300 CF_ARG_DISABLE(echo,
1301 [ --disable-echo do not display "compiling" commands],
1304 ECHO_LD='@echo linking [$]@;'
1305 RULE_CC='@echo compiling [$]<'
1306 SHOW_CC='@echo compiling [$]@'
1315 AC_MSG_RESULT($enableval)
1322 dnl ---------------------------------------------------------------------------
1323 dnl CF_DISABLE_LEAKS version: 9 updated: 2021/04/03 16:41:50
1324 dnl ----------------
1325 dnl Combine no-leak checks with the libraries or tools that are used for the
1327 AC_DEFUN([CF_DISABLE_LEAKS],[
1329 AC_REQUIRE([CF_WITH_DMALLOC])
1330 AC_REQUIRE([CF_WITH_DBMALLOC])
1331 AC_REQUIRE([CF_WITH_VALGRIND])
1333 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1334 AC_ARG_ENABLE(leaks,
1335 [ --disable-leaks test: free permanent memory, analyze leaks],
1336 [enable_leaks=$enableval],
1338 dnl with_no_leaks is more readable...
1339 if test "x$enable_leaks" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi
1340 AC_MSG_RESULT($with_no_leaks)
1342 if test "$enable_leaks" = no ; then
1343 AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1344 AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1347 dnl ---------------------------------------------------------------------------
1348 dnl CF_DISABLE_RPATH_HACK version: 3 updated: 2021/01/05 20:14:44
1349 dnl ---------------------
1350 dnl The rpath-hack makes it simpler to build programs, particularly with the
1351 dnl *BSD ports which may have essential libraries in unusual places. But it
1352 dnl can interfere with building an executable for the base system. Use this
1353 dnl option in that case.
1354 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1356 AC_MSG_CHECKING(if rpath-hack should be disabled)
1357 CF_ARG_DISABLE(rpath-hack,
1358 [ --disable-rpath-hack don't add rpath options for additional libraries],
1359 [enable_rpath_hack=no],
1360 [enable_rpath_hack=yes])
1361 dnl TODO - drop cf_disable_rpath_hack
1362 if test "x$enable_rpath_hack" = xno; then cf_disable_rpath_hack=yes; else cf_disable_rpath_hack=no; fi
1363 AC_MSG_RESULT($cf_disable_rpath_hack)
1365 if test "$enable_rpath_hack" = yes ; then
1369 dnl ---------------------------------------------------------------------------
1370 dnl CF_ENABLE_STRING_HACKS version: 6 updated: 2021/01/05 19:23:48
1371 dnl ----------------------
1372 dnl On a few platforms, the compiler and/or loader nags with untruthful
1373 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1374 dnl and implying that most uses of the recommended alternatives are correct.
1376 dnl Factually speaking, no one has actually counted the number of uses of these
1377 dnl functions versus the total of incorrect uses. Samples of a few thousand
1378 dnl instances are meaningless compared to the hundreds of millions of lines of
1379 dnl existing C code.
1381 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1382 dnl platforms, in implementations of varying quality. Likewise, snprintf is
1383 dnl standard - but evolved through phases, and older implementations are likely
1384 dnl to yield surprising results, as documented in manpages on various systems.
1385 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1387 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1388 AC_ARG_ENABLE(string-hacks,
1389 [ --enable-string-hacks work around bogus compiler/loader warnings],
1390 [enable_string_hacks=$enableval],
1391 [enable_string_hacks=no])
1392 AC_MSG_RESULT($enable_string_hacks)
1394 if test "x$enable_string_hacks" = "xyes"; then
1395 AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1396 AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1397 AC_CHECK_FUNC(strlcat,[
1398 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1400 AC_CHECK_LIB(bsd,strlcat,[
1402 AC_CHECK_HEADERS(bsd/string.h)
1403 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1406 AC_CHECK_FUNCS( strlcpy snprintf )
1409 dnl ---------------------------------------------------------------------------
1410 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1411 dnl ------------------
1412 dnl Configure-option to enable gcc warnings
1414 dnl $1 = extra options to add, if supported
1415 dnl $2 = option for checking attributes. By default, this is done when
1416 dnl warnings are enabled. For other values:
1417 dnl yes: always do this, e.g., to use in generated library-headers
1418 dnl no: never do this
1419 AC_DEFUN([CF_ENABLE_WARNINGS],[
1420 if test "$GCC" = yes || test "$GXX" = yes
1422 CF_FIX_WARNINGS(CFLAGS)
1423 CF_FIX_WARNINGS(CPPFLAGS)
1424 CF_FIX_WARNINGS(LDFLAGS)
1425 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1426 CF_ARG_ENABLE(warnings,
1427 [ --enable-warnings test: turn on gcc compiler warnings],
1428 [enable_warnings=yes],
1429 [enable_warnings=no])
1430 AC_MSG_RESULT($enable_warnings)
1431 if test "$enable_warnings" = "yes"
1433 ifelse($2,,[CF_GCC_ATTRIBUTES])
1436 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1439 dnl ---------------------------------------------------------------------------
1440 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1442 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
1443 dnl prefer a standard location, and use -L options only if we do not find the
1444 dnl library in the standard library location(s).
1445 dnl $1 = library name
1446 dnl $2 = library class, usually the same as library name
1448 dnl $4 = code fragment to compile/link
1449 dnl $5 = corresponding function-name
1450 dnl $6 = flag, nonnull if failure should not cause an error-exit
1452 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1453 dnl to use a -L option.
1454 AC_DEFUN([CF_FIND_LIBRARY],
1456 eval 'cf_cv_have_lib_'"$1"'=no'
1459 eval 'cf_cv_have_lib_'"$1"'=yes',[
1460 cf_save_LIBS="$LIBS"
1461 AC_MSG_CHECKING(for $5 in -l$1)
1463 AC_TRY_LINK([$3],[$4],
1465 eval 'cf_cv_have_lib_'"$1"'=yes'
1468 CF_LIBRARY_PATH(cf_search,$2)
1469 for cf_libdir in $cf_search
1471 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1472 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1473 AC_TRY_LINK([$3],[$4],
1475 eval 'cf_cv_have_lib_'"$1"'=yes'
1478 LIBS="$cf_save_LIBS"])
1482 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1484 if test "$cf_found_library" = no ; then
1485 AC_MSG_ERROR(Cannot link $1 library)
1489 dnl ---------------------------------------------------------------------------
1490 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1492 dnl Find a library (specifically the linkage used in the code fragment),
1493 dnl searching for it if it is not already in the library path.
1494 dnl See also CF_ADD_SEARCHPATH.
1496 dnl Parameters (4-on are optional):
1497 dnl $1 = headers for library entrypoint
1498 dnl $2 = code fragment for library entrypoint
1499 dnl $3 = the library name without the "-l" option or ".so" suffix.
1500 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
1501 dnl $5 = action to perform if not successful
1502 dnl $6 = module name, if not the same as the library name
1503 dnl $7 = extra libraries
1505 dnl Sets these variables:
1506 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1507 dnl $cf_cv_header_path_$3 - include-directory if needed
1508 dnl $cf_cv_library_path_$3 - library-directory if needed
1509 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1510 AC_DEFUN([CF_FIND_LINKAGE],[
1512 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1513 # will be set on completion of the AC_TRY_LINK below.
1514 cf_cv_header_path_$3=
1515 cf_cv_library_path_$3=
1517 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1519 cf_save_LIBS="$LIBS"
1521 AC_TRY_LINK([$1],[$2],[
1522 cf_cv_find_linkage_$3=yes
1523 cf_cv_header_path_$3=/usr/include
1524 cf_cv_library_path_$3=/usr/lib
1527 LIBS="-l$3 $7 $cf_save_LIBS"
1529 AC_TRY_LINK([$1],[$2],[
1530 cf_cv_find_linkage_$3=yes
1531 cf_cv_header_path_$3=/usr/include
1532 cf_cv_library_path_$3=/usr/lib
1533 cf_cv_library_file_$3="-l$3"
1535 cf_cv_find_linkage_$3=no
1536 LIBS="$cf_save_LIBS"
1538 CF_VERBOSE(find linkage for $3 library)
1539 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1541 cf_save_CPPFLAGS="$CPPFLAGS"
1542 cf_test_CPPFLAGS="$CPPFLAGS"
1544 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1545 for cf_cv_header_path_$3 in $cf_search
1547 if test -d "$cf_cv_header_path_$3" ; then
1548 CF_VERBOSE(... testing $cf_cv_header_path_$3)
1549 CPPFLAGS="$cf_save_CPPFLAGS"
1550 CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1551 AC_TRY_COMPILE([$1],[$2],[
1552 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1553 cf_cv_find_linkage_$3=maybe
1554 cf_test_CPPFLAGS="$CPPFLAGS"
1556 CPPFLAGS="$cf_save_CPPFLAGS"
1561 if test "$cf_cv_find_linkage_$3" = maybe ; then
1563 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1565 cf_save_LIBS="$LIBS"
1566 cf_save_LDFLAGS="$LDFLAGS"
1569 CPPFLAGS="$cf_test_CPPFLAGS"
1570 LIBS="-l$3 $7 $cf_save_LIBS"
1571 AC_TRY_LINK([$1],[$2],[
1572 CF_VERBOSE(... found $3 library in system)
1573 cf_cv_find_linkage_$3=yes])
1574 CPPFLAGS="$cf_save_CPPFLAGS"
1575 LIBS="$cf_save_LIBS"
1578 if test "$cf_cv_find_linkage_$3" != yes ; then
1579 CF_LIBRARY_PATH(cf_search,$3)
1580 for cf_cv_library_path_$3 in $cf_search
1582 if test -d "$cf_cv_library_path_$3" ; then
1583 CF_VERBOSE(... testing $cf_cv_library_path_$3)
1584 CPPFLAGS="$cf_test_CPPFLAGS"
1585 LIBS="-l$3 $7 $cf_save_LIBS"
1586 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1587 AC_TRY_LINK([$1],[$2],[
1588 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1589 cf_cv_find_linkage_$3=yes
1590 cf_cv_library_file_$3="-l$3"
1592 CPPFLAGS="$cf_save_CPPFLAGS"
1593 LIBS="$cf_save_LIBS"
1594 LDFLAGS="$cf_save_LDFLAGS"
1598 CPPFLAGS="$cf_save_CPPFLAGS"
1599 LDFLAGS="$cf_save_LDFLAGS"
1603 cf_cv_find_linkage_$3=no
1608 LIBS="$cf_save_LIBS"
1610 if test "$cf_cv_find_linkage_$3" = yes ; then
1612 CF_ADD_INCDIR($cf_cv_header_path_$3)
1613 CF_ADD_LIBDIR($cf_cv_library_path_$3)
1617 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1620 dnl ---------------------------------------------------------------------------
1621 dnl CF_FIX_WARNINGS version: 4 updated: 2021/12/16 18:22:31
1623 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc. Any of gcc's
1624 dnl "-Werror" flags can interfere with configure-checks. Those go into
1627 dnl $1 = variable name to repair
1628 define([CF_FIX_WARNINGS],[
1629 if test "$GCC" = yes || test "$GXX" = yes
1634 for cf_temp_scan in [$]$1
1636 case "x$cf_temp_scan" in
1638 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1641 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1644 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1648 if test "x[$]$1" != "x$cf_temp_flags"
1650 CF_VERBOSE(repairing $1: [$]$1)
1652 CF_VERBOSE(... fixed [$]$1)
1653 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1658 AC_SUBST(EXTRA_CFLAGS)
1660 dnl ---------------------------------------------------------------------------
1661 dnl CF_FUNC_CURSES_VERSION version: 9 updated: 2023/01/05 18:06:10
1662 dnl ----------------------
1663 dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
1664 dnl It's a character string "SVR4", not documented.
1665 AC_DEFUN([CF_FUNC_CURSES_VERSION],
1667 AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
1669 $ac_includes_default
1671 #include <${cf_cv_ncurses_header:-curses.h}>
1676 sprintf(temp, "%.999s\\n", curses_version());
1677 ${cf_cv_main_return:-return}(0);
1679 ,[cf_cv_func_curses_version=yes]
1680 ,[cf_cv_func_curses_version=no]
1681 ,[cf_cv_func_curses_version=unknown])
1683 test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION,1,[Define to 1 if we have curses_version function])
1685 dnl ---------------------------------------------------------------------------
1686 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
1688 dnl Check for openpty() function, along with <pty.h> header. It may need the
1689 dnl "util" library as well.
1690 AC_DEFUN([CF_FUNC_OPENPTY],
1692 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1693 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1694 cf_save_LIBS="$LIBS"
1695 test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
1696 for cf_header in pty.h libutil.h util.h
1699 #include <$cf_header>
1701 int x = openpty((int *)0, (int *)0, (char *)0,
1702 (struct termios *)0, (struct winsize *)0);
1704 cf_cv_func_openpty=$cf_header
1707 cf_cv_func_openpty=no
1710 LIBS="$cf_save_LIBS"
1713 dnl ---------------------------------------------------------------------------
1714 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1715 dnl -----------------
1716 dnl Test for availability of useful gcc __attribute__ directives to quiet
1717 dnl compiler warnings. Though useful, not all are supported -- and contrary
1718 dnl to documentation, unrecognized directives cause older compilers to barf.
1719 AC_DEFUN([CF_GCC_ATTRIBUTES],
1720 [AC_REQUIRE([AC_PROG_FGREP])dnl
1721 AC_REQUIRE([CF_C11_NORETURN])dnl
1723 if test "$GCC" = yes || test "$GXX" = yes
1725 cat > conftest.i <<EOF
1727 #define GCC_PRINTF 0
1732 #ifndef GCC_NORETURN
1733 #define GCC_NORETURN /* nothing */
1736 #define GCC_UNUSED /* nothing */
1739 if test "$GCC" = yes
1741 AC_CHECKING([for $CC __attribute__ directives])
1742 cat > "conftest.$ac_ext" <<EOF
1743 #line __oline__ "${as_me:-configure}"
1745 #include "confdefs.h"
1746 #include "conftest.h"
1747 #include "conftest.i"
1749 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1751 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1754 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1756 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1758 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1759 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1760 extern GCC_NORETURN void foo(void);
1761 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1763 cf_printf_attribute=no
1764 cf_scanf_attribute=no
1765 for cf_attribute in scanf printf unused noreturn
1767 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1768 cf_directive="__attribute__(($cf_attribute))"
1769 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1771 case "$cf_attribute" in
1773 cf_printf_attribute=yes
1774 cat >conftest.h <<EOF
1775 #define GCC_$cf_ATTRIBUTE 1
1779 cf_scanf_attribute=yes
1780 cat >conftest.h <<EOF
1781 #define GCC_$cf_ATTRIBUTE 1
1785 cat >conftest.h <<EOF
1786 #define GCC_$cf_ATTRIBUTE $cf_directive
1791 if AC_TRY_EVAL(ac_compile); then
1792 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1793 cat conftest.h >>confdefs.h
1794 case "$cf_attribute" in
1796 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1799 cf_value='/* nothing */'
1800 if test "$cf_printf_attribute" != no ; then
1801 cf_value='__attribute__((format(printf,fmt,var)))'
1802 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1804 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1807 cf_value='/* nothing */'
1808 if test "$cf_scanf_attribute" != no ; then
1809 cf_value='__attribute__((format(scanf,fmt,var)))'
1810 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1812 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1815 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1821 ${FGREP-fgrep} define conftest.i >>confdefs.h
1826 dnl ---------------------------------------------------------------------------
1827 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1829 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1830 dnl compatible), attempt to determine if icc/clang is actually used.
1831 AC_DEFUN([CF_GCC_VERSION],[
1832 AC_REQUIRE([AC_PROG_CC])
1834 if test "$GCC" = yes ; then
1835 AC_MSG_CHECKING(version of $CC)
1836 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1837 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1838 AC_MSG_RESULT($GCC_VERSION)
1840 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1841 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1843 dnl ---------------------------------------------------------------------------
1844 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1846 dnl Check if the compiler supports useful warning options. There's a few that
1847 dnl we don't use, simply because they're too noisy:
1849 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1850 dnl -Winline (usually not worthwhile)
1851 dnl -Wredundant-decls (system headers make this too noisy)
1852 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1853 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1854 dnl is enabled for ncurses using "--enable-const".
1858 dnl $1 is an optional list of gcc warning flags that a particular
1859 dnl application might want to use, e.g., "no-unused" for
1862 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1864 AC_DEFUN([CF_GCC_WARNINGS],
1866 AC_REQUIRE([CF_GCC_VERSION])
1867 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1868 cat > "conftest.$ac_ext" <<EOF
1869 #line __oline__ "${as_me:-configure}"
1870 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1872 if test "$INTEL_COMPILER" = yes
1874 # The "-wdXXX" options suppress warnings:
1875 # remark #1419: external declaration in primary source file
1876 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1877 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1878 # remark #193: zero used for undefined preprocessing identifier
1879 # remark #593: variable "curs_sb_left_arrow" was set but never used
1880 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1881 # remark #869: parameter "tw" was never referenced
1882 # remark #981: operands are evaluated in unspecified order
1883 # warning #279: controlling expression is constant
1885 AC_CHECKING([for $CC warning options])
1886 cf_save_CFLAGS="$CFLAGS"
1887 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1899 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1900 if AC_TRY_EVAL(ac_compile); then
1901 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1902 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1905 CFLAGS="$cf_save_CFLAGS"
1906 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1908 AC_CHECKING([for $CC warning options])
1909 cf_save_CFLAGS="$CFLAGS"
1911 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1912 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1913 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1914 for cf_opt in W Wall \
1915 Wbad-function-cast \
1918 Wdeclaration-after-statement \
1921 Wmissing-declarations \
1922 Wmissing-prototypes \
1926 Wstrict-prototypes \
1927 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1929 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1930 if AC_TRY_EVAL(ac_compile); then
1931 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1934 case "$GCC_VERSION" in
1936 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1941 case "$GCC_VERSION" in
1943 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1948 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1951 CFLAGS="$cf_save_CFLAGS"
1955 AC_SUBST(EXTRA_CFLAGS)
1957 dnl ---------------------------------------------------------------------------
1958 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
1959 dnl ----------------
1960 dnl Check for getopt's variables which are commonly defined in stdlib.h,
1961 dnl unistd.h or (nonstandard) in getopt.h
1962 AC_DEFUN([CF_GETOPT_HEADER],
1964 AC_HAVE_HEADERS(unistd.h getopt.h)
1965 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
1966 cf_cv_getopt_header=none
1967 for cf_header in stdio.h stdlib.h unistd.h getopt.h
1970 #include <$cf_header>],
1971 [int x = optind; char *y = optarg; (void)x; (void)y],
1972 [cf_cv_getopt_header=$cf_header
1976 if test "$cf_cv_getopt_header" != none ; then
1977 AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
1979 if test "$cf_cv_getopt_header" = getopt.h ; then
1980 AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
1983 dnl ---------------------------------------------------------------------------
1984 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1986 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1987 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1988 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1989 dnl since it is interwoven with GNU extensions.
1991 dnl Well, yes we could work around it...
1994 dnl $1 is the nominal value for _XOPEN_SOURCE
1995 AC_DEFUN([CF_GNU_SOURCE],
1997 cf_gnu_xopen_source=ifelse($1,,500,$1)
1999 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
2000 AC_TRY_COMPILE([#include <sys/types.h>],[
2001 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
2003 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
2006 # error not GNU C library
2008 [cf_cv_gnu_library=yes],
2009 [cf_cv_gnu_library=no])
2012 if test x$cf_cv_gnu_library = xyes; then
2014 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
2015 # was changed to help a little. newlib incorporated the change about 4
2017 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
2019 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2020 AC_TRY_COMPILE([#include <sys/types.h>],[
2021 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
2023 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
2026 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
2028 [cf_cv_gnu_library_219=yes],
2029 [cf_cv_gnu_library_219=no])
2033 if test "x$cf_cv_gnu_library_219" = xyes; then
2035 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
2036 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2039 #include <sys/types.h>
2041 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2044 # error GNU C library is too old
2046 [cf_cv_gnu_dftsrc_219=yes],
2047 [cf_cv_gnu_dftsrc_219=no])
2049 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2051 cf_cv_gnu_dftsrc_219=maybe
2054 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2056 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2057 AC_TRY_COMPILE([#include <sys/types.h>],[
2058 #ifndef _XOPEN_SOURCE
2059 #error expected _XOPEN_SOURCE to be defined
2061 [cf_cv_gnu_source=no],
2062 [cf_save="$CPPFLAGS"
2063 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2064 AC_TRY_COMPILE([#include <sys/types.h>],[
2065 #ifdef _XOPEN_SOURCE
2066 #error expected _XOPEN_SOURCE to be undefined
2068 [cf_cv_gnu_source=no],
2069 [cf_cv_gnu_source=yes])
2074 if test "$cf_cv_gnu_source" = yes
2076 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2077 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2078 AC_TRY_COMPILE([#include <sys/types.h>],[
2079 #ifdef _DEFAULT_SOURCE
2080 #error expected _DEFAULT_SOURCE to be undefined
2082 [cf_cv_default_source=no],
2083 [cf_cv_default_source=yes])
2085 if test "$cf_cv_default_source" = yes
2087 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2094 dnl ---------------------------------------------------------------------------
2095 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2097 dnl Construct a search-list of directories for a nonstandard header-file
2100 dnl $1 = the variable to return as result
2101 dnl $2 = the package name
2102 AC_DEFUN([CF_HEADER_PATH],
2106 # collect the current set of include-directories from compiler flags
2107 cf_header_path_list=""
2108 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2109 for cf_header_path in $CPPFLAGS $CFLAGS
2111 case "$cf_header_path" in
2113 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2114 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2115 cf_header_path_list="$cf_header_path_list [$]$1"
2121 # add the variations for the package we are looking for
2122 CF_SUBDIR_PATH($1,$2,include)
2124 test "$includedir" != NONE && \
2125 test "$includedir" != "/usr/include" && \
2126 test -d "$includedir" && {
2127 test -d "$includedir" && $1="[$]$1 $includedir"
2128 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2131 test "$oldincludedir" != NONE && \
2132 test "$oldincludedir" != "/usr/include" && \
2133 test -d "$oldincludedir" && {
2134 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2135 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2138 $1="[$]$1 $cf_header_path_list"
2140 dnl ---------------------------------------------------------------------------
2141 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2143 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2144 AC_DEFUN([CF_HELP_MESSAGE],
2145 [CF_ACVERSION_CHECK(2.53,[],[
2146 AC_DIVERT_HELP($1)])dnl
2148 dnl ---------------------------------------------------------------------------
2149 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
2150 dnl -----------------
2151 dnl If we do not have a given script, look for it in the parent directory.
2152 AC_DEFUN([CF_INHERIT_SCRIPT],
2154 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
2156 dnl ---------------------------------------------------------------------------
2157 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2159 dnl prompt for/fill-in useful install-program options
2160 AC_DEFUN([CF_INSTALL_OPTS],
2166 dnl ---------------------------------------------------------------------------
2167 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2168 dnl ----------------
2169 dnl Almost all "install" programs default to the current user's ownership.
2170 dnl Almost - MINIX is an exception.
2171 AC_DEFUN([CF_INSTALL_OPT_O],
2173 AC_MSG_CHECKING(if install needs to be told about ownership)
2174 case `$ac_config_guess` in
2183 AC_MSG_RESULT($with_install_o)
2184 if test "x$with_install_o" = xyes
2186 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'`"
2191 AC_SUBST(INSTALL_OPT_O)
2193 dnl ---------------------------------------------------------------------------
2194 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2195 dnl ----------------
2196 dnl Some install-programs accept a "-p" option to preserve file modification
2197 dnl timestamps. That can be useful as an install option, as well as a way to
2198 dnl avoid the need for ranlib after copying a static archive.
2199 AC_DEFUN([CF_INSTALL_OPT_P],
2201 : "${INSTALL:=install}"
2202 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2207 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2209 if test -f conftest.out/conftest.in
2211 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2212 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2213 if test -s conftest.err
2228 dnl ---------------------------------------------------------------------------
2229 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2230 dnl ----------------
2231 dnl By default, we should strip executables which are installed, but leave the
2232 dnl ability to suppress that for unit-testing.
2233 AC_DEFUN([CF_INSTALL_OPT_S],
2235 AC_MSG_CHECKING(if you want to install stripped executables)
2236 CF_ARG_DISABLE(stripping,
2237 [ --disable-stripping do not strip (debug info) installed executables],
2238 [enable_stripping=no],
2239 [enable_stripping=yes])
2240 AC_MSG_RESULT($enable_stripping)
2242 if test "$enable_stripping" = yes
2248 AC_SUBST(INSTALL_OPT_S)
2250 dnl ---------------------------------------------------------------------------
2251 dnl CF_INTEL_COMPILER version: 8 updated: 2021/01/01 16:53:59
2252 dnl -----------------
2253 dnl Check if the given compiler is really the Intel compiler for Linux. It
2254 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2255 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2257 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2258 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2259 dnl the wrappers for gcc and g++ warnings.
2261 dnl $1 = GCC (default) or GXX
2262 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2263 dnl $3 = CFLAGS (default) or CXXFLAGS
2264 AC_DEFUN([CF_INTEL_COMPILER],[
2265 AC_REQUIRE([AC_CANONICAL_HOST])
2266 ifelse([$2],,INTEL_COMPILER,[$2])=no
2268 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2271 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2272 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2273 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2275 #ifdef __INTEL_COMPILER
2279 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2280 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2282 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2283 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2288 dnl ---------------------------------------------------------------------------
2289 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2291 dnl For the given system and compiler, find the compiler flags to pass to the
2292 dnl loader to use the "rpath" feature.
2293 AC_DEFUN([CF_LD_RPATH_OPT],
2295 AC_REQUIRE([CF_CHECK_CACHE])
2298 if test "x$cf_cv_enable_rpath" != xno
2300 AC_MSG_CHECKING(for an rpath option)
2301 case "$cf_cv_system_name" in
2303 if test "$GCC" = yes; then
2304 LD_RPATH_OPT="-Wl,-rpath,"
2306 LD_RPATH_OPT="-rpath "
2309 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2310 LD_RPATH_OPT="-Wl,-rpath,"
2312 (openbsd[[2-9]].*|mirbsd*)
2313 LD_RPATH_OPT="-Wl,-rpath,"
2316 LD_RPATH_OPT="-rpath "
2319 LD_RPATH_OPT="-Wl,-rpath,"
2322 LD_RPATH_OPT="-rpath "
2330 AC_MSG_RESULT($LD_RPATH_OPT)
2332 case "x$LD_RPATH_OPT" in
2334 AC_MSG_CHECKING(if we need a space after rpath option)
2335 cf_save_LIBS="$LIBS"
2336 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2337 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2338 LIBS="$cf_save_LIBS"
2339 AC_MSG_RESULT($cf_rpath_space)
2340 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2345 dnl ---------------------------------------------------------------------------
2346 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2348 dnl Construct a search-list of directories for a nonstandard library-file
2351 dnl $1 = the variable to return as result
2352 dnl $2 = the package name
2353 AC_DEFUN([CF_LIBRARY_PATH],
2356 cf_library_path_list=""
2357 if test -n "${LDFLAGS}${LIBS}" ; then
2358 for cf_library_path in $LDFLAGS $LIBS
2360 case "$cf_library_path" in
2362 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2363 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2364 cf_library_path_list="$cf_library_path_list [$]$1"
2370 CF_SUBDIR_PATH($1,$2,lib)
2372 $1="$cf_library_path_list [$]$1"
2374 dnl ---------------------------------------------------------------------------
2375 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2377 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2378 dnl acts as a placeholder.
2380 dnl The ".PHONY" feature was proposed in 2011 here
2381 dnl https://www.austingroupbugs.net/view.php?id=523
2382 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2384 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2385 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2387 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2388 dnl date unspecified).
2390 dnl + It was adopted in NetBSD make in June 1995.
2392 dnl + The other BSD make programs are derived from the NetBSD make (and for
2393 dnl that reason are not actually different "implementations").
2395 dnl + Some features of NetBSD make were actually adapted from pmake, which
2396 dnl began as a modified GNU make starting in 1993.
2398 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2399 dnl GNU make extension, but is less well known than the BSD make.
2400 AC_DEFUN([CF_MAKE_PHONY],[
2401 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2404 mkdir conftest || exit 1
2406 cat >makefile <<'CF_EOF'
2410 @echo "** making [$]@ [$](DATA)"
2412 @echo "** making [$]@ [$](DATA)"
2414 @echo "** making [$]@ [$](DATA)"
2415 echo [$](DATA) > [$]@
2417 @echo "** making [$]@ [$](DATA)"
2418 echo [$](DATA) > [$]@
2420 for cf_data in 1 2 3
2422 ${MAKE:-make} always DATA=$cf_data
2423 ${MAKE:-make} once DATA=$cf_data
2424 ${MAKE:-make} -t always once
2425 if test -f always ; then
2426 echo "no (case 1)" > ../conftest.tmp
2427 elif test ! -f always.out ; then
2428 echo "no (case 2)" > ../conftest.tmp
2429 elif test ! -f once.out ; then
2430 echo "no (case 3)" > ../conftest.tmp
2431 elif ! cmp -s always.out once.out ; then
2432 echo "no (case 4)" > ../conftest.tmp
2433 diff always.out once.out
2435 cf_check="`cat always.out`"
2436 if test "x$cf_check" != "x$cf_data" ; then
2437 echo "no (case 5)" > ../conftest.tmp
2439 echo yes > ../conftest.tmp
2447 cf_cv_make_PHONY="`cat conftest.tmp`"
2452 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2453 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2454 AC_SUBST(MAKE_NO_PHONY)
2455 AC_SUBST(MAKE_PHONY)
2457 dnl ---------------------------------------------------------------------------
2458 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2460 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2461 dnl a monocase filesystem.
2462 AC_DEFUN([CF_MAKE_TAGS],[
2463 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2465 AC_CHECK_PROGS(CTAGS, exctags ctags)
2466 AC_CHECK_PROGS(ETAGS, exetags etags)
2468 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2470 if test "$cf_cv_mixedcase" = yes ; then
2471 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2476 if test "$MAKE_UPPER_TAGS" = yes ; then
2482 if test "$MAKE_LOWER_TAGS" = yes ; then
2491 AC_SUBST(MAKE_UPPER_TAGS)
2492 AC_SUBST(MAKE_LOWER_TAGS)
2494 dnl ---------------------------------------------------------------------------
2495 dnl CF_MATH_LIB version: 11 updated: 2022/07/27 19:01:48
2497 dnl Checks for libraries. At least one UNIX system, Apple Macintosh
2498 dnl Rhapsody 5.5, does not have -lm. We cannot use the simpler
2499 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
2500 AC_DEFUN([CF_MATH_LIB],
2502 AC_CACHE_CHECK(if -lm needed for math functions,
2509 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2510 [cf_cv_need_libm=no],
2511 [cf_cv_need_libm=yes])])
2513 if test "$cf_cv_need_libm" = yes
2516 cf_save_LIBS="$LIBS"
2518 AC_CACHE_CHECK(if -lm is available for math functions,
2525 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2526 [cf_cv_have_libm=yes],
2527 [cf_cv_have_libm=no])])
2528 LIBS="$cf_save_LIBS"
2530 if test "$cf_cv_have_libm" = yes
2532 ifelse($1,,[CF_ADD_LIB(m)],[$1=-lm])
2538 if test "$cf_cv_have_libm" = yes
2540 AC_DEFINE(HAVE_MATH_FUNCS,1,[Define to 1 if math functions are available])
2543 dnl ---------------------------------------------------------------------------
2544 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2545 dnl ----------------------
2546 dnl Check if the file-system supports mixed-case filenames. If we're able to
2547 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2548 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2550 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2551 if test "$cross_compiling" = yes ; then
2552 case "$target_alias" in
2553 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2561 rm -f conftest CONFTEST
2563 if test -f CONFTEST ; then
2568 rm -f conftest CONFTEST
2571 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2573 dnl ---------------------------------------------------------------------------
2574 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2576 dnl Write a debug message to config.log, along with the line number in the
2577 dnl configure script.
2578 AC_DEFUN([CF_MSG_LOG],[
2579 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2581 dnl ---------------------------------------------------------------------------
2582 dnl CF_NCURSES_CC_CHECK version: 5 updated: 2020/12/31 20:19:42
2583 dnl -------------------
2584 dnl Check if we can compile with ncurses' header file
2585 dnl $1 is the cache variable to set
2586 dnl $2 is the header-file to include
2587 dnl $3 is the root name (ncurses or ncursesw)
2588 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2590 ]ifelse($3,ncursesw,[
2591 #define _XOPEN_SOURCE_EXTENDED
2592 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2593 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2596 #ifdef NCURSES_VERSION
2597 ]ifelse($3,ncursesw,[
2602 printf("%s\\n", NCURSES_VERSION);
2614 dnl ---------------------------------------------------------------------------
2615 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2616 dnl -----------------
2617 dnl Tie together the configure-script macros for ncurses, preferring these in
2619 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2620 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2621 dnl c) just plain libraries
2623 dnl $1 is the root library name (default: "ncurses")
2624 AC_DEFUN([CF_NCURSES_CONFIG],[
2625 AC_REQUIRE([CF_PKG_CONFIG])
2626 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2627 cf_have_ncuconfig=no
2629 if test "x${PKG_CONFIG:=none}" != xnone; then
2630 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2631 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2634 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2635 cf_have_ncuconfig=unknown
2637 cf_save_CFLAGS="$CFLAGS"
2638 cf_save_CPPFLAGS="$CPPFLAGS"
2639 cf_save_LIBS="$LIBS"
2641 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2642 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2644 # while -W for passing linker flags is prevalent, it is not "standard".
2645 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2646 # incompatible _and_ non-standard -W option which gives an error. Work
2647 # around that pitfall.
2648 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2650 CF_ADD_CFLAGS($cf_pkg_cflags)
2651 CF_ADD_LIBS($cf_pkg_libs)
2653 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2654 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2655 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2657 { const char *xx = curses_version(); return (xx == 0); }],
2658 [cf_test_ncuconfig=yes],
2659 [cf_test_ncuconfig=no],
2660 [cf_test_ncuconfig=maybe])],
2661 [cf_test_ncuconfig=no])
2663 CFLAGS="$cf_save_CFLAGS"
2664 CPPFLAGS="$cf_save_CPPFLAGS"
2665 LIBS="$cf_save_LIBS"
2667 if test "x$cf_test_ncuconfig" != xyes; then
2668 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2669 cf_pkg_cflags="$cf_temp"
2670 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2671 cf_pkg_libs="$cf_temp"
2676 CF_APPEND_CFLAGS($cf_pkg_cflags)
2677 CF_ADD_LIBS($cf_pkg_libs)
2679 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2680 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2681 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2683 { const char *xx = curses_version(); return (xx == 0); }],
2684 [cf_have_ncuconfig=yes],
2685 [cf_have_ncuconfig=no],
2686 [cf_have_ncuconfig=maybe])],
2687 [cf_have_ncuconfig=no])
2688 AC_MSG_RESULT($cf_have_ncuconfig)
2689 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2690 if test "$cf_have_ncuconfig" != "yes"
2692 CPPFLAGS="$cf_save_CPPFLAGS"
2693 LIBS="$cf_save_LIBS"
2694 NCURSES_CONFIG_PKG=none
2696 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2697 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2703 NCURSES_CONFIG_PKG=none
2706 NCURSES_CONFIG_PKG=none
2709 if test "x$cf_have_ncuconfig" = "xno"; then
2710 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2712 CF_ACVERSION_CHECK(2.52,
2713 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2714 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2716 if test "$NCURSES_CONFIG" != none ; then
2718 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
2719 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2721 # even with config script, some packages use no-override for curses.h
2722 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2724 dnl like CF_NCURSES_CPPFLAGS
2725 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2727 dnl like CF_NCURSES_LIBS
2728 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2729 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2731 dnl like CF_NCURSES_VERSION
2732 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2736 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2737 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2744 dnl ---------------------------------------------------------------------------
2745 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2746 dnl -------------------
2747 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2748 dnl the CPPFLAGS variable so we can include its header.
2750 dnl The header files may be installed as either curses.h, or ncurses.h (would
2751 dnl be obsolete, except that some packagers prefer this name to distinguish it
2752 dnl from a "native" curses implementation). If not installed for overwrite,
2753 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2754 dnl /usr/include/ncurses), but someone may have installed overwriting the
2755 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2756 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2759 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2760 dnl is already in the include-path, don't even bother with this, since we cannot
2761 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2763 dnl The optional parameter gives the root name of the library, in case it is
2764 dnl not installed as the default curses library. That is how the
2765 dnl wide-character version of ncurses is installed.
2766 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2767 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2769 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2770 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2772 test -n "$cf_cv_curses_dir" && \
2773 test "$cf_cv_curses_dir" != "no" && { \
2774 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2777 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2778 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2779 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2780 for cf_header in $cf_header_list
2782 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2783 test "$cf_cv_ncurses_h" != no && break
2790 # some applications need this, but should check for NCURSES_VERSION
2791 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2795 dnl ---------------------------------------------------------------------------
2796 dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
2797 dnl --------------------
2798 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
2799 dnl may provide these functions. Define the symbol if it is not defined, and
2801 AC_DEFUN([CF_NCURSES_EXT_FUNCS],
2803 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
2805 #include <${cf_cv_ncurses_header:-curses.h}>],
2807 int x = NCURSES_EXT_FUNCS
2808 ],[cf_cv_ncurses_ext_funcs=defined],[
2810 #include <${cf_cv_ncurses_header:-curses.h}>],
2812 (void) assume_default_colors (0, 0);
2813 (void) curses_version ();
2814 (void) define_key (0, 0);
2815 (void) is_term_resized (0, 0);
2816 (void) key_defined (0);
2817 (void) keybound (0, 0);
2818 (void) keyok (0, 0);
2819 (void) resize_term (0, 0);
2820 (void) resizeterm (0, 0);
2821 (void) use_default_colors ();
2822 (void) use_extended_names (0);
2823 (void) wresize (0, 0, 0);],
2824 [cf_cv_ncurses_ext_funcs=yes],
2825 [cf_cv_ncurses_ext_funcs=no])
2828 test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
2830 dnl ---------------------------------------------------------------------------
2831 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2832 dnl -----------------
2833 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2834 dnl variations of ncurses' installs.
2836 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2837 AC_DEFUN([CF_NCURSES_HEADER],[
2839 if test "$cf_cv_ncurses_h" != no ; then
2840 cf_cv_ncurses_header=$cf_cv_ncurses_h
2843 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2844 test -n "$verbose" && echo
2845 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2846 test -n "$verbose" && echo "search path $cf_search"
2847 cf_save2_CPPFLAGS="$CPPFLAGS"
2848 for cf_incdir in $cf_search
2850 CF_ADD_INCDIR($cf_incdir)
2855 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2856 if test "$cf_cv_ncurses_h2" != no ; then
2857 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2858 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2861 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2863 CPPFLAGS="$cf_save2_CPPFLAGS"
2864 test "$cf_cv_ncurses_h2" != no && break
2866 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2869 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2870 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
2871 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
2872 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
2874 CF_ADD_INCDIR($cf_1st_incdir)
2878 # Set definitions to allow ifdef'ing for ncurses.h
2880 case "$cf_cv_ncurses_header" in
2882 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2886 case "$cf_cv_ncurses_header" in
2887 (ncurses/curses.h|ncurses/ncurses.h)
2888 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2890 (ncursesw/curses.h|ncursesw/ncurses.h)
2891 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2896 dnl ---------------------------------------------------------------------------
2897 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
2899 dnl Look for the ncurses library. This is a little complicated on Linux,
2900 dnl because it may be linked with the gpm (general purpose mouse) library.
2901 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2902 dnl unusable with ncurses. However, we don't want to link with gpm unless
2903 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2904 dnl and the linker will record a dependency.
2906 dnl The optional parameter gives the root name of the library, in case it is
2907 dnl not installed as the default curses library. That is how the
2908 dnl wide-character version of ncurses is installed.
2909 AC_DEFUN([CF_NCURSES_LIBS],
2910 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2912 cf_nculib_root=ifelse($1,,ncurses,$1)
2913 # This works, except for the special case where we find gpm, but
2914 # ncurses is in a nonstandard location via $LIBS, and we really want
2917 cf_ncurses_SAVE="$LIBS"
2918 AC_CHECK_LIB(gpm,Gpm_Open,
2919 [AC_CHECK_LIB(gpm,initscr,
2920 [LIBS="$cf_ncurses_SAVE"],
2921 [cf_ncurses_LIBS="-lgpm"])])
2925 # This is only necessary if you are linking against an obsolete
2926 # version of ncurses (but it should do no harm, since it is static).
2927 if test "$cf_nculib_root" = ncurses ; then
2928 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2933 CF_ADD_LIBS($cf_ncurses_LIBS)
2935 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
2937 CF_ADD_LIBS(-l$cf_nculib_root)
2939 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2940 [#include <${cf_cv_ncurses_header:-curses.h}>],
2945 if test -n "$cf_ncurses_LIBS" ; then
2946 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2947 cf_ncurses_SAVE="$LIBS"
2948 for p in $cf_ncurses_LIBS ; do
2949 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
2950 if test "$q" != "$LIBS" ; then
2954 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2955 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2956 [AC_MSG_RESULT(yes)],
2958 LIBS="$cf_ncurses_SAVE"])
2961 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2962 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2964 dnl ---------------------------------------------------------------------------
2965 dnl CF_NCURSES_PTHREADS version: 2 updated: 2016/04/22 05:07:41
2966 dnl -------------------
2967 dnl Use this followup check to ensure that we link with pthreads if ncurses
2969 AC_DEFUN([CF_NCURSES_PTHREADS],[
2970 : ${cf_nculib_root:=ifelse($1,,ncurses,$1)}
2971 AC_CHECK_LIB($cf_nculib_root,_nc_init_pthreads,
2972 cf_cv_ncurses_pthreads=yes,
2973 cf_cv_ncurses_pthreads=no)
2974 if test "$cf_cv_ncurses_pthreads" = yes
2976 CF_ADD_LIBS(-lpthread)
2979 dnl ---------------------------------------------------------------------------
2980 dnl CF_NCURSES_VERSION version: 17 updated: 2023/01/05 18:54:02
2981 dnl ------------------
2982 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2983 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
2984 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2985 AC_DEFUN([CF_NCURSES_VERSION],
2987 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2988 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2989 cf_cv_ncurses_version=no
2991 rm -f "$cf_tempfile"
2993 $ac_includes_default
2995 #include <${cf_cv_ncurses_header:-curses.h}>
2999 FILE *fp = fopen("$cf_tempfile", "w");
3000 #ifdef NCURSES_VERSION
3001 # ifdef NCURSES_VERSION_PATCH
3002 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
3004 fprintf(fp, "%s\\n", NCURSES_VERSION);
3008 fprintf(fp, "old\\n");
3013 ${cf_cv_main_return:-return}(0);
3015 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3017 # This will not work if the preprocessor splits the line after the
3018 # Autoconf token. The 'unproto' program does that.
3019 cat > "conftest.$ac_ext" <<EOF
3020 #include <${cf_cv_ncurses_header:-curses.h}>
3022 #ifdef NCURSES_VERSION
3023 Autoconf NCURSES_VERSION
3031 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3033 if test -f conftest.out ; then
3034 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3035 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3039 rm -f "$cf_tempfile"
3041 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3043 dnl ---------------------------------------------------------------------------
3044 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
3045 dnl ----------------------
3046 dnl Check for ncurses "wrap-prefix" used for public variables which have been
3047 dnl wrapped with a function to help with concurrency control.
3048 AC_DEFUN([CF_NCURSES_WRAP_PREFIX],
3050 AC_MSG_CHECKING(for ncurses wrap-prefix)
3051 AC_ARG_WITH(ncurses-wrap-prefix,
3052 [ --with-ncurses-wrap-prefix naming-prefix for ncurses wrapped-variables],
3053 [NCURSES_WRAP_PREFIX=$withval],
3054 [NCURSES_WRAP_PREFIX=_nc_])
3055 AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
3057 AC_SUBST(NCURSES_WRAP_PREFIX)
3059 dnl ---------------------------------------------------------------------------
3060 dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
3061 dnl ----------------
3062 dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
3063 dnl Some workarounds are needed in client programs to allow them to compile.
3064 AC_DEFUN([CF_NETBSD_FORM_H],[
3065 AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
3067 #include <${cf_cv_ncurses_header:-curses.h}>
3071 int y = current_field(form)->cursor_ypos;
3072 int x = current_field(form)->cursor_xpos;
3073 ],[cf_cv_netbsd_form_h=yes
3074 ],[cf_cv_netbsd_form_h=no])
3077 test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
3079 dnl ---------------------------------------------------------------------------
3080 dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
3081 dnl ----------------
3082 dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
3083 dnl Some workarounds are needed in client programs to allow them to compile.
3084 AC_DEFUN([CF_NETBSD_MENU_H],[
3085 AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
3087 #include <${cf_cv_ncurses_header:-curses.h}>
3091 int y = menu->max_item_width;
3092 ],[cf_cv_netbsd_menu_h=yes
3093 ],[cf_cv_netbsd_menu_h=no])
3096 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])
3098 dnl ---------------------------------------------------------------------------
3099 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
3100 dnl ------------------
3101 dnl see CF_WITH_NO_LEAKS
3103 dnl $1 = option/name
3105 dnl $3 = symbol to define if the option is set
3106 dnl $4 = additional actions to take if the option is set
3107 AC_DEFUN([CF_NO_LEAKS_OPTION],[
3108 AC_MSG_CHECKING(if you want to use $1 for testing)
3111 [case "x$withval" in
3114 : "${with_cflags:=-g}"
3115 : "${enable_leaks:=no}"
3117 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
3123 AC_MSG_RESULT(${with_$1:-no})
3125 case ".$with_cflags" in
3137 dnl ---------------------------------------------------------------------------
3138 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3140 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3141 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3142 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3143 dnl delayed evaluation of those symbols.
3144 AC_DEFUN([CF_PATH_SYNTAX],[
3145 if test "x$prefix" != xNONE; then
3146 cf_path_syntax="$prefix"
3148 cf_path_syntax="$ac_default_prefix"
3152 (.\[$]\(*\)*|.\'*\'*)
3156 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3158 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3162 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3167 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3170 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3174 dnl ---------------------------------------------------------------------------
3175 dnl CF_PDCURSES_X11 version: 15 updated: 2021/01/02 09:31:20
3177 dnl Configure for PDCurses' X11 library
3178 AC_DEFUN([CF_PDCURSES_X11],[
3179 AC_REQUIRE([CF_X_ATHENA])
3181 CF_ACVERSION_CHECK(2.52,
3182 [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
3183 [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
3185 if test "$XCURSES_CONFIG" != none ; then
3187 CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
3188 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
3190 cf_cv_lib_XCurses=yes
3194 LDFLAGS="$LDFLAGS $X_LIBS"
3195 CF_CHECK_CFLAGS($X_CFLAGS)
3196 AC_CHECK_LIB(X11,XOpenDisplay,
3197 [CF_ADD_LIBS(-lX11)],,
3198 [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
3199 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
3200 CF_ADD_LIBS(-lXCurses)
3202 #include <xcurses.h>
3203 char *XCursesProgramName = "test";
3205 [cf_cv_lib_XCurses=yes],
3206 [cf_cv_lib_XCurses=no])
3211 if test "$cf_cv_lib_XCurses" = yes ; then
3212 AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
3213 AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
3214 AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
3216 AC_MSG_ERROR(Cannot link with XCurses)
3219 dnl ---------------------------------------------------------------------------
3220 dnl CF_PKG_CONFIG version: 12 updated: 2021/10/10 20:18:09
3222 dnl Check for the package-config program, unless disabled by command-line.
3224 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3225 AC_DEFUN([CF_PKG_CONFIG],
3227 AC_MSG_CHECKING(if you want to use pkg-config)
3228 AC_ARG_WITH(pkg-config,
3229 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3230 [cf_pkg_config=$withval],
3231 [cf_pkg_config=yes])
3232 AC_MSG_RESULT($cf_pkg_config)
3234 case "$cf_pkg_config" in
3239 CF_ACVERSION_CHECK(2.52,
3240 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3241 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3248 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3249 if test "$PKG_CONFIG" != none ; then
3250 CF_PATH_SYNTAX(PKG_CONFIG)
3251 elif test "x$cf_pkg_config" != xno ; then
3252 AC_MSG_WARN(pkg-config is not installed)
3255 AC_SUBST(PKG_CONFIG)
3257 dnl ---------------------------------------------------------------------------
3258 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3259 dnl -----------------
3260 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3262 dnl POSIX.1-1990 _POSIX_SOURCE
3263 dnl POSIX.1-1990 and _POSIX_SOURCE and
3264 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3266 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3267 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3268 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3271 dnl $1 is the nominal value for _POSIX_C_SOURCE
3272 AC_DEFUN([CF_POSIX_C_SOURCE],
3273 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3275 if test "$cf_cv_posix_visible" = no; then
3277 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3279 cf_save_CFLAGS="$CFLAGS"
3280 cf_save_CPPFLAGS="$CPPFLAGS"
3282 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3283 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3285 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3286 CF_MSG_LOG(if the symbol is already defined go no further)
3287 AC_TRY_COMPILE([#include <sys/types.h>],[
3288 #ifndef _POSIX_C_SOURCE
3291 [cf_cv_posix_c_source=no],
3292 [cf_want_posix_source=no
3293 case .$cf_POSIX_C_SOURCE in
3295 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3298 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3299 cf_want_posix_source=yes
3302 cf_want_posix_source=yes
3305 if test "$cf_want_posix_source" = yes ; then
3306 AC_TRY_COMPILE([#include <sys/types.h>],[
3307 #ifdef _POSIX_SOURCE
3310 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3312 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3313 CFLAGS="$cf_trim_CFLAGS"
3314 CPPFLAGS="$cf_trim_CPPFLAGS"
3315 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3316 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3317 AC_TRY_COMPILE([#include <sys/types.h>],[
3318 #ifndef _POSIX_C_SOURCE
3321 [cf_cv_posix_c_source=no])
3322 CFLAGS="$cf_save_CFLAGS"
3323 CPPFLAGS="$cf_save_CPPFLAGS"
3327 if test "$cf_cv_posix_c_source" != no ; then
3328 CFLAGS="$cf_trim_CFLAGS"
3329 CPPFLAGS="$cf_trim_CPPFLAGS"
3330 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3333 fi # cf_cv_posix_visible
3336 dnl ---------------------------------------------------------------------------
3337 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3338 dnl ----------------
3339 dnl POSIX documents test-macros which an application may set before any system
3340 dnl headers are included to make features available.
3342 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3343 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3344 dnl recent features visible in the system header files unless the application
3345 dnl overrides the corresponding test-macros. Doing that introduces portability
3348 dnl This macro makes a special check for the symbols used for this, to avoid a
3349 dnl conflicting definition.
3350 AC_DEFUN([CF_POSIX_VISIBLE],
3352 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3353 AC_TRY_COMPILE([#include <stdio.h>],[
3354 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3355 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3356 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3357 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3358 #error conflicting symbols found
3360 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3363 dnl ---------------------------------------------------------------------------
3364 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3366 dnl Append definitions and rules for the given programs to the subdirectory
3367 dnl Makefiles, and the recursion rule for the top-level Makefile.
3370 dnl $1 = script to run
3371 dnl $2 = list of subdirectories
3375 AC_DEFUN([CF_PRG_RULES],
3379 if test ! -d "$srcdir/$cf_dir" ; then
3381 elif test -f "$srcdir/$cf_dir/programs" ; then
3382 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3387 dnl ---------------------------------------------------------------------------
3388 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3390 dnl standard check for CC, plus followup sanity checks
3391 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3392 AC_DEFUN([CF_PROG_CC],[
3393 CF_ACVERSION_CHECK(2.53,
3394 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3395 AC_REQUIRE([AC_PROG_CC])],
3397 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3399 CF_ACVERSION_CHECK(2.52,
3404 dnl ---------------------------------------------------------------------------
3405 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3407 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3408 dnl misc/tabset install won't work properly. Usually this happens only when
3409 dnl using the fallback mkinstalldirs script
3410 AC_DEFUN([CF_PROG_INSTALL],
3416 CF_DIRNAME(cf_dir,$INSTALL)
3417 test -z "$cf_dir" && cf_dir=.
3418 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3422 dnl ---------------------------------------------------------------------------
3423 dnl CF_PROG_LINT version: 5 updated: 2022/08/20 15:44:13
3425 AC_DEFUN([CF_PROG_LINT],
3427 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3429 (xcppcheck|x*/cppcheck)
3430 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3436 dnl ---------------------------------------------------------------------------
3437 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3438 dnl ----------------
3439 dnl Remove a given option from CFLAGS/CPPFLAGS
3440 dnl $1 = option to remove
3441 dnl $2 = variable to update
3442 dnl $3 = nonempty to allow verbose message
3443 define([CF_REMOVE_CFLAGS],
3445 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3448 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3449 test "[$]$2" != "$cf_old_cflag" || break
3450 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3454 dnl ---------------------------------------------------------------------------
3455 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3456 dnl ----------------
3457 dnl Remove all -U and -D options that refer to the given symbol from a list
3458 dnl of C compiler options. This works around the problem that not all
3459 dnl compilers process -U and -D options from left-to-right, so a -U option
3460 dnl cannot be used to cancel the effect of a preceding -D option.
3462 dnl $1 = target (which could be the same as the source variable)
3463 dnl $2 = source (including '$')
3464 dnl $3 = symbol to remove
3465 define([CF_REMOVE_DEFINE],
3468 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3469 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3471 dnl ---------------------------------------------------------------------------
3472 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3473 dnl ---------------------
3474 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3475 dnl $1 = name of current macro
3476 define([CF_RESTORE_XTRA_FLAGS],
3478 LIBS="$cf_save_LIBS_$1"
3479 CFLAGS="$cf_save_CFLAGS_$1"
3480 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3482 dnl ---------------------------------------------------------------------------
3483 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3485 AC_DEFUN([CF_RPATH_HACK],
3486 [AC_REQUIRE([AC_PROG_FGREP])dnl
3487 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3489 AC_MSG_CHECKING(for updated LDFLAGS)
3490 if test -n "$LD_RPATH_OPT" ; then
3491 AC_MSG_RESULT(maybe)
3493 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3494 cf_rpath_list="/usr/lib /lib"
3495 if test "$cf_ldd_prog" != no
3499 AC_TRY_LINK([#include <stdio.h>],
3501 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3502 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3504 # If we passed the link-test, but get a "not found" on a given library,
3505 # this could be due to inept reconfiguration of gcc to make it only
3506 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3507 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3508 # /usr/local libraries.
3509 if test -n "$cf_rpath_oops"
3511 for cf_rpath_src in $cf_rpath_oops
3513 for cf_rpath_dir in \
3518 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3520 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3521 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3529 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3531 CF_RPATH_HACK_2(LDFLAGS)
3532 CF_RPATH_HACK_2(LIBS)
3534 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3538 AC_SUBST(EXTRA_LDFLAGS)
3540 dnl ---------------------------------------------------------------------------
3541 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3543 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3544 dnl EXTRA_LDFLAGS for each -L option found.
3546 dnl $cf_rpath_list contains a list of directories to ignore.
3548 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3549 dnl but LIBS often has misplaced -L options.
3550 AC_DEFUN([CF_RPATH_HACK_2],
3552 CF_VERBOSE(...checking $1 [$]$1)
3555 for cf_rpath_src in [$]$1
3557 case "$cf_rpath_src" in
3560 # check if this refers to a directory which we will ignore
3562 if test -n "$cf_rpath_list"
3564 for cf_rpath_item in $cf_rpath_list
3566 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3574 if test "$cf_rpath_skip" = no
3576 # transform the option
3577 if test "$LD_RPATH_OPT" = "-R " ; then
3578 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3580 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3583 # if we have not already added this, add it now
3584 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3585 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3587 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3588 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3593 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3597 CF_VERBOSE(...checked $1 [$]$1)
3598 AC_SUBST(EXTRA_LDFLAGS)
3600 dnl ---------------------------------------------------------------------------
3601 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3602 dnl ------------------
3603 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3604 dnl and libraries which do not update those variables.
3606 dnl $1 = name of current macro
3607 define([CF_SAVE_XTRA_FLAGS],
3609 cf_save_LIBS_$1="$LIBS"
3610 cf_save_CFLAGS_$1="$CFLAGS"
3611 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3612 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3613 for cf_X_CFLAGS in $X_CFLAGS
3615 case "x$cf_X_CFLAGS" in
3617 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3620 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3625 dnl ---------------------------------------------------------------------------
3626 dnl CF_SIGWINCH version: 6 updated: 2021/01/01 13:31:04
3628 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3629 dnl programs need this test).
3631 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3632 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3633 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3634 dnl break that part of the interface as well.
3635 AC_DEFUN([CF_SIGWINCH],
3637 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3639 #include <sys/types.h>
3640 #include <sys/signal.h>
3641 ],[int x = SIGWINCH; (void)x],
3642 [cf_cv_define_sigwinch=yes],
3644 #undef _XOPEN_SOURCE
3645 #undef _POSIX_SOURCE
3646 #undef _POSIX_C_SOURCE
3647 #include <sys/types.h>
3648 #include <sys/signal.h>
3649 ],[int x = SIGWINCH; (void)x],
3650 [cf_cv_define_sigwinch=maybe],
3651 [cf_cv_define_sigwinch=no])
3655 if test "$cf_cv_define_sigwinch" = maybe ; then
3656 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3657 cf_cv_fixup_sigwinch=unknown
3659 while test "$cf_sigwinch" != 1
3662 #undef _XOPEN_SOURCE
3663 #undef _POSIX_SOURCE
3664 #undef _POSIX_C_SOURCE
3665 #include <sys/types.h>
3666 #include <sys/signal.h>
3668 #if SIGWINCH != $cf_sigwinch
3671 int x = SIGWINCH; (void)x],
3672 [cf_cv_fixup_sigwinch=$cf_sigwinch
3675 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3679 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3680 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3684 dnl ---------------------------------------------------------------------------
3685 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3687 dnl signal handler, but there are some gcc dependencies in that recommendation.
3689 AC_DEFUN([CF_SIG_ATOMIC_T],
3691 AC_MSG_CHECKING(for signal global datatype)
3692 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3694 "volatile sig_atomic_t" \
3699 #include <sys/types.h>
3705 static void handler(int sig)
3710 [signal(SIGINT, handler);
3712 [cf_cv_sig_atomic_t=$cf_type],
3713 [cf_cv_sig_atomic_t=no])
3714 test "$cf_cv_sig_atomic_t" != no && break
3717 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3718 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3720 dnl ---------------------------------------------------------------------------
3721 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3723 dnl Construct a search-list for a nonstandard header/lib-file
3724 dnl $1 = the variable to return as result
3725 dnl $2 = the package name
3726 dnl $3 = the subdirectory, e.g., bin, include or lib
3727 AC_DEFUN([CF_SUBDIR_PATH],
3731 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3733 for cf_subdir_prefix in \
3741 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3744 dnl ---------------------------------------------------------------------------
3745 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3746 dnl ------------------
3747 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3748 dnl older SCO configurations.
3749 AC_DEFUN([CF_SYS_TIME_SELECT],
3751 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3752 AC_CACHE_VAL(cf_cv_sys_time_select,[
3754 #include <sys/types.h>
3755 #ifdef HAVE_SYS_TIME_H
3756 #include <sys/time.h>
3758 #ifdef HAVE_SYS_SELECT_H
3759 #include <sys/select.h>
3761 ],[],[cf_cv_sys_time_select=yes],
3762 [cf_cv_sys_time_select=no])
3764 AC_MSG_RESULT($cf_cv_sys_time_select)
3765 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3767 dnl ---------------------------------------------------------------------------
3768 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3770 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3771 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3772 dnl but some packagers change this, breaking various applications.
3773 AC_DEFUN([CF_TERM_HEADER],[
3774 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3775 case "${cf_cv_ncurses_header}" in
3776 (*/ncurses.h|*/ncursesw.h)
3777 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3780 cf_term_header=term.h
3784 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3786 AC_TRY_COMPILE([#include <stdio.h>
3787 #include <${cf_cv_ncurses_header:-curses.h}>
3789 ],[int x = auto_left_margin; (void)x],[
3790 cf_cv_term_header="$cf_test"],[
3791 cf_cv_term_header=unknown
3793 test "$cf_cv_term_header" != unknown && break
3797 # Set definitions to allow ifdef'ing to accommodate subdirectories
3799 case "$cf_cv_term_header" in
3801 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3805 case "$cf_cv_term_header" in
3807 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3810 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3814 dnl ---------------------------------------------------------------------------
3815 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3817 dnl Define a top_builddir symbol, for applications that need an absolute path.
3818 AC_DEFUN([CF_TOP_BUILDDIR],
3820 top_builddir=ifelse($1,,`pwd`,$1)
3821 AC_SUBST(top_builddir)
3823 dnl ---------------------------------------------------------------------------
3824 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3826 dnl Check for type of function-pointer passed to tputs. Some old
3827 dnl implementations used functions that had different prototypes, making it
3828 dnl hard to compile portable programs using tputs.
3829 AC_DEFUN([CF_TPUTS_PROTO],[
3830 CF_CURSES_FUNCS(tputs)
3831 if test "x$cf_cv_func_tputs" = xyes
3834 for cf_arg in int char
3836 for cf_ret in int void
3838 if test "$cf_ret" = void
3840 cf_return="/* nothing */"
3842 cf_return="return value"
3845 #include <${cf_cv_ncurses_header:-curses.h}>
3846 #include <$cf_cv_term_header>
3848 static $cf_ret outc($cf_arg value) { $cf_return; }
3850 tputs("hello", 0, outc);
3851 ${cf_cv_main_return:-return}(0);
3853 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3854 cat >>confdefs.h <<EOF
3855 #define TPUTS_ARG $cf_arg
3856 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3857 #define TPUTS_RETURN(value) $cf_return
3863 test "$cf_done" = yes && break
3867 dnl ---------------------------------------------------------------------------
3868 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3870 dnl Trim extra base X libraries added as a workaround for inconsistent library
3871 dnl dependencies returned by "new" pkg-config files.
3872 AC_DEFUN([CF_TRIM_X_LIBS],[
3873 for cf_trim_lib in Xmu Xt X11
3876 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3877 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3878 CF_VERBOSE(..trimmed $LIBS)
3883 dnl ---------------------------------------------------------------------------
3884 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3885 dnl -----------------
3886 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3887 dnl available in that form.
3889 dnl $1 = package name, which may be a shell variable
3890 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3891 dnl $3 = logic to use if pkg-config does not have the package
3892 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3893 AC_REQUIRE([CF_PKG_CONFIG])
3895 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3896 CF_VERBOSE(found package $1)
3897 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3898 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3899 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3900 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3901 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3902 CF_ADD_LIBS($cf_pkgconfig_libs)
3903 ifelse([$2],,:,[$2])
3907 ifelse([$3],,:,[$3])
3910 dnl ---------------------------------------------------------------------------
3911 dnl CF_TRY_XOPEN_SOURCE version: 4 updated: 2022/09/10 15:16:16
3912 dnl -------------------
3913 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3914 dnl can define it successfully.
3915 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3916 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3917 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
3918 [cf_cv_xopen_source=no],
3919 [cf_save="$CPPFLAGS"
3920 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3921 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,
3922 [cf_cv_xopen_source=no],
3923 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3928 if test "$cf_cv_xopen_source" != no ; then
3929 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3930 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3931 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3932 CF_APPEND_CFLAGS($cf_temp_xopen_source)
3935 dnl ---------------------------------------------------------------------------
3936 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3938 dnl Make an uppercase version of a variable
3939 dnl $1=uppercase($2)
3940 AC_DEFUN([CF_UPPER],
3942 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3944 dnl ---------------------------------------------------------------------------
3945 dnl CF_UTF8_LIB version: 9 updated: 2021/05/19 19:35:25
3947 dnl Check for multibyte support, and if not found, utf8 compatibility library
3948 AC_DEFUN([CF_UTF8_LIB],
3950 AC_HAVE_HEADERS(wchar.h)
3951 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3952 cf_save_LIBS="$LIBS"
3960 [cf_cv_utf8_lib=yes],
3962 #include <libutf8.h>],[putwc(0,0);],utf8,
3963 [cf_cv_utf8_lib=add-on],
3964 [cf_cv_utf8_lib=no])
3967 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3969 if test "$cf_cv_utf8_lib" = "add-on" ; then
3970 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3971 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3972 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3973 CF_ADD_LIBS($cf_cv_library_file_utf8)
3976 dnl ---------------------------------------------------------------------------
3977 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3979 dnl Use AC_VERBOSE w/o the warnings
3980 AC_DEFUN([CF_VERBOSE],
3981 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3984 dnl ---------------------------------------------------------------------------
3985 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
3987 dnl Check if type wide-character type $1 is declared, and if so, which header
3988 dnl file is needed. The second parameter is used to set a shell variable when
3989 dnl the type is not found. The first parameter sets a shell variable for the
3991 AC_DEFUN([CF_WCHAR_TYPE],
3993 # This is needed on Tru64 5.0 to declare $1
3994 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
3999 #ifdef HAVE_LIBUTF8_H
4000 #include <libutf8.h>
4009 #ifdef HAVE_LIBUTF8_H
4010 #include <libutf8.h>
4014 [cf_cv_$1=unknown])])])
4016 if test "$cf_cv_$1" = yes ; then
4017 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
4022 # if we do not find $1 in either place, use substitution to provide a fallback.
4023 if test "$cf_cv_$1" = unknown ; then
4028 # if we find $1 in either place, use substitution to provide a fallback.
4029 if test "$cf_cv_$1" != unknown ; then
4034 dnl ---------------------------------------------------------------------------
4035 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4036 dnl ------------------
4037 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4039 AC_DEFUN([CF_WITH_CURSES_DIR],[
4041 AC_MSG_CHECKING(for specific curses-directory)
4042 AC_ARG_WITH(curses-dir,
4043 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4044 [cf_cv_curses_dir=$withval],
4045 [cf_cv_curses_dir=no])
4046 AC_MSG_RESULT($cf_cv_curses_dir)
4048 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4050 CF_PATH_SYNTAX(withval)
4051 if test -d "$cf_cv_curses_dir"
4053 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4054 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4058 dnl ---------------------------------------------------------------------------
4059 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
4060 dnl ----------------
4061 dnl Configure-option for dbmalloc. The optional parameter is used to override
4062 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4063 AC_DEFUN([CF_WITH_DBMALLOC],[
4064 CF_NO_LEAKS_OPTION(dbmalloc,
4065 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
4068 if test "$with_dbmalloc" = yes ; then
4069 AC_CHECK_HEADER(dbmalloc.h,
4070 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
4073 dnl ---------------------------------------------------------------------------
4074 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
4076 dnl Configure-option for dmalloc. The optional parameter is used to override
4077 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4078 AC_DEFUN([CF_WITH_DMALLOC],[
4079 CF_NO_LEAKS_OPTION(dmalloc,
4080 [ --with-dmalloc test: use Gray Watson's dmalloc library],
4083 if test "$with_dmalloc" = yes ; then
4084 AC_CHECK_HEADER(dmalloc.h,
4085 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
4088 dnl ---------------------------------------------------------------------------
4089 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
4090 dnl --------------------
4091 dnl Allow for overriding the basename of a library, i.e., the part to which
4092 dnl prefixes/suffixes are attached.
4094 dnl $1 = variable to set
4095 dnl $2 = option name
4096 dnl $3 = default basename for library, if omitted use $2
4097 AC_DEFUN([CF_WITH_LIB_BASENAME],
4099 AC_MSG_CHECKING(for desired basename for $2 library)
4100 AC_ARG_WITH($2-libname,
4101 [ --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
4102 [with_lib_basename=$withval],
4103 [with_lib_basename=ifelse($3,,$2,$3)])
4104 $1="$with_lib_basename"
4108 $1=ifelse($3,,$2,$3)
4114 AC_MSG_RESULT([$]$1)
4117 dnl ---------------------------------------------------------------------------
4118 dnl CF_WITH_NCURSES_ETC version: 5 updated: 2016/02/20 19:23:20
4119 dnl -------------------
4120 dnl Use this macro for programs which use any variant of "curses", e.g.,
4121 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
4122 dnl library (such as slang) should use a "--with-screen=XXX" option.
4124 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
4125 dnl of the macros inside this one - before this macro.
4126 define([CF_WITH_NCURSES_ETC],[
4131 AC_MSG_CHECKING(for specified curses library type)
4133 [ --with-screen=XXX use specified curses-libraries],
4134 [cf_cv_screen=$withval],[
4136 AC_ARG_WITH(ncursesw,
4137 [ --with-ncursesw use wide ncurses-libraries],
4138 [cf_cv_screen=ncursesw],[
4140 AC_ARG_WITH(ncurses,
4141 [ --with-ncurses use ncurses-libraries],
4142 [cf_cv_screen=ncurses],[
4144 AC_ARG_WITH(pdcurses,
4145 [ --with-pdcurses compile/link with pdcurses X11 library],
4146 [cf_cv_screen=pdcurses],[
4148 AC_ARG_WITH(curses-colr,
4149 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
4150 [cf_cv_screen=curses_colr],[
4152 AC_ARG_WITH(curses-5lib,
4153 [ --with-curses-5lib compile/link with SunOS 5lib curses],
4154 [cf_cv_screen=curses_5lib])])])])])])
4156 AC_MSG_RESULT($cf_cv_screen)
4158 case $cf_cv_screen in
4164 CF_NCURSES_CONFIG($cf_cv_screen)
4167 CF_NCURSES_CONFIG($cf_cv_screen)
4173 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4177 CF_NCURSES_PTHREADS($cf_cv_screen)
4180 dnl ---------------------------------------------------------------------------
4181 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4182 dnl -----------------------
4183 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4184 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4185 dnl script to search for the X11/Xt header files to declare (or not) the
4186 dnl symbol needed to enable "const" in those header files. If that configure
4187 dnl option is not used, then those checks are unnecessary.
4188 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4189 AC_PROVIDE([AC_PATH_XTRA])
4190 AC_PROVIDE([AC_PATH_X])
4191 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4197 dnl ---------------------------------------------------------------------------
4198 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4199 dnl ----------------
4200 AC_DEFUN([CF_WITH_VALGRIND],[
4201 CF_NO_LEAKS_OPTION(valgrind,
4202 [ --with-valgrind test: use valgrind],
4205 dnl ---------------------------------------------------------------------------
4206 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
4208 dnl Handle configure option "--with-x11-rgb", setting these shell
4211 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4212 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4214 dnl Most Linux's use this:
4215 dnl /usr/share/X11/rgb.txt
4216 dnl Debian uses this:
4217 dnl /etc/X11/rgb.txt
4218 dnl DragonFlyBSD ports uses this:
4219 dnl /usr/pkg/lib/X11/rgb.txt
4220 dnl FreeBSD ports use these:
4221 dnl /usr/local/lib/X11/rgb.txt
4222 dnl /usr/local/share/X11/rgb.txt
4223 dnl Mandriva has these:
4224 dnl /usr/lib/X11/rgb.txt
4225 dnl /usr/lib64/X11/rgb.txt
4226 dnl NetBSD has these
4227 dnl /usr/X11R7/lib/X11/rgb.txt
4228 dnl OpenSolaris uses
4230 dnl /usr/X11/etc/X11/rgb.txt
4231 dnl /usr/X11/share/X11/rgb.txt
4232 dnl /usr/X11/lib/X11/rgb.txt
4234 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4235 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4237 dnl /usr/X11/etc/X11/rgb.txt
4238 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4239 dnl /usr/X11/lib/amd64/X11/rgb.txt
4240 dnl Solaris10 uses (in this order):
4241 dnl /usr/openwin/lib/X11/rgb.txt
4242 dnl /usr/X11/lib/X11/rgb.txt
4243 AC_DEFUN([CF_WITH_X11_RGB],[
4244 AC_MSG_CHECKING(for X11 rgb file)
4245 AC_ARG_WITH(x11-rgb,
4246 [ --with-x11-rgb=FILE file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
4247 [RGB_PATH=$withval],
4250 if test "x[$]RGB_PATH" = xauto
4252 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4254 /opt/local/share/X11/rgb.txt \
4255 /opt/X11/share/X11/rgb.txt \
4256 /usr/share/X11/rgb.txt \
4257 /usr/X11/share/X11/rgb.txt \
4258 /usr/X11/lib/X11/rgb.txt \
4259 /usr/lib/X11/rgb.txt \
4261 /usr/pkg/lib/X11/rgb.txt \
4262 /usr/X11R7/lib/X11/rgb.txt \
4263 /usr/X11R6/lib/X11/rgb.txt \
4264 /usr/X11R5/lib/X11/rgb.txt \
4265 /usr/X11R4/lib/X11/rgb.txt \
4266 /usr/local/lib/X11/rgb.txt \
4267 /usr/local/share/X11/rgb.txt \
4268 /usr/lib64/X11/rgb.txt
4270 if test -f "$cf_path" ; then
4277 CF_PATH_SYNTAX(cf_path)
4280 AC_MSG_RESULT($RGB_PATH)
4282 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4285 if test "$RGB_PATH" = no
4289 AC_SUBST(no_x11_rgb)
4291 dnl ---------------------------------------------------------------------------
4292 dnl CF_XOPEN_CURSES version: 17 updated: 2021/07/10 12:22:27
4294 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4295 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4297 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4298 dnl as getbegy(). The latter is better design, but the former is standard.
4299 AC_DEFUN([CF_XOPEN_CURSES],
4301 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4302 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4303 cf_cv_need_xopen_extension=unknown
4306 #include <${cf_cv_ncurses_header:-curses.h}>],[
4307 #if defined(NCURSES_VERSION_PATCH)
4308 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4312 #ifdef NCURSES_WIDECHAR
4313 make an error /* prefer to fall-through on the second checks */
4316 int check2 = curs_set((int)sizeof(check));
4317 long x = winnstr(stdscr, "", 0);
4320 getbegyx(stdscr, y1, x1);
4325 [cf_cv_need_xopen_extension=none],
4327 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4330 #define $cf_try_xopen_extension 1
4332 #include <${cf_cv_ncurses_header:-curses.h}>],[
4334 int check2 = curs_set((int)sizeof(check));
4335 long x = winnstr(stdscr, "", 0);
4337 getbegyx(stdscr, y1, x1);
4343 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4348 case "$cf_cv_need_xopen_extension" in
4350 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4355 dnl ---------------------------------------------------------------------------
4356 dnl CF_XOPEN_SOURCE version: 63 updated: 2022/12/29 10:10:26
4358 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4359 dnl or adapt to the vendor's definitions to get equivalent functionality,
4360 dnl without losing the common non-POSIX features.
4363 dnl $1 is the nominal value for _XOPEN_SOURCE
4364 dnl $2 is the nominal value for _POSIX_C_SOURCE
4365 AC_DEFUN([CF_XOPEN_SOURCE],[
4366 AC_REQUIRE([AC_CANONICAL_HOST])
4367 AC_REQUIRE([CF_POSIX_VISIBLE])
4369 if test "$cf_cv_posix_visible" = no; then
4371 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4372 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4377 cf_xopen_source="-D_ALL_SOURCE"
4383 cf_xopen_source="-D_APPLE_C_SOURCE"
4386 cf_xopen_source="-D_DARWIN_C_SOURCE"
4389 (freebsd*|dragonfly*|midnightbsd*)
4390 # 5.x headers associate
4391 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4392 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4393 cf_POSIX_C_SOURCE=200112L
4395 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4398 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4401 cf_xopen_source="-D_HPUX_SOURCE"
4404 cf_xopen_source="-D_SGI_SOURCE"
4407 (linux*gnu|linux*gnuabi64|linux*gnuabin32|linux*gnueabi|linux*gnueabihf|linux*gnux32|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4408 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4411 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4414 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4416 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4419 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4422 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4423 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4424 # Abusing the conformance level is a workaround.
4425 AC_MSG_WARN(this system does not provide usable locale support)
4426 cf_xopen_source="-D_BSD_SOURCE"
4430 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4431 cf_xopen_source="-D_BSD_SOURCE"
4435 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4438 cf_xopen_source="-D_OSF_SOURCE"
4441 cf_xopen_source="-D_QNX_SOURCE"
4444 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4447 cf_xopen_source="-D__EXTENSIONS__"
4448 cf_cv_xopen_source=broken
4450 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4456 cf_save_xopen_cppflags="$CPPFLAGS"
4457 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4458 # Some of these niche implementations use copy/paste, double-check...
4459 if test "$cf_cv_xopen_source" != no ; then
4460 CF_VERBOSE(checking if _POSIX_C_SOURCE inteferes)
4461 AC_TRY_COMPILE(CF__XOPEN_SOURCE_HEAD,CF__XOPEN_SOURCE_BODY,,[
4462 AC_MSG_WARN(_POSIX_C_SOURCE definition is not usable)
4463 CPPFLAGS="$cf_save_xopen_cppflags"])
4468 if test -n "$cf_xopen_source" ; then
4469 CF_APPEND_CFLAGS($cf_xopen_source,true)
4472 dnl In anything but the default case, we may have system-specific setting
4473 dnl which is still not guaranteed to provide all of the entrypoints that
4474 dnl _XOPEN_SOURCE would yield.
4475 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4476 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4477 AC_TRY_COMPILE([#include <stdlib.h>],[
4478 #ifndef _XOPEN_SOURCE
4481 [cf_XOPEN_SOURCE_set=yes],
4482 [cf_XOPEN_SOURCE_set=no])
4483 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4484 if test "$cf_XOPEN_SOURCE_set" = yes
4486 AC_TRY_COMPILE([#include <stdlib.h>],[
4487 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4490 [cf_XOPEN_SOURCE_set_ok=yes],
4491 [cf_XOPEN_SOURCE_set_ok=no])
4492 if test "$cf_XOPEN_SOURCE_set_ok" = no
4494 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4500 fi # cf_cv_posix_visible
4502 dnl ---------------------------------------------------------------------------
4503 dnl CF_X_ATHENA version: 24 updated: 2020/03/10 18:53:47
4505 dnl Check for Xaw (Athena) libraries
4507 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4508 AC_DEFUN([CF_X_ATHENA],
4510 cf_x_athena=${cf_x_athena:-Xaw}
4512 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4515 [ --with-Xaw3d link with Xaw 3d library])
4516 if test "$withval" = yes ; then
4523 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4525 AC_ARG_WITH(Xaw3dxft,
4526 [ --with-Xaw3dxft link with Xaw 3d xft library])
4527 if test "$withval" = yes ; then
4528 cf_x_athena=Xaw3dxft
4534 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4537 [ --with-neXtaw link with neXT Athena library])
4538 if test "$withval" = yes ; then
4545 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4547 AC_ARG_WITH(XawPlus,
4548 [ --with-XawPlus link with Athena-Plus library])
4549 if test "$withval" = yes ; then
4558 if test "$PKG_CONFIG" != none ; then
4560 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4561 for cf_athena_pkg in \
4564 ${cf_x_athena}-devel \
4566 lib${cf_x_athena}-devel
4568 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4569 cf_x_athena_lib="$cf_pkgconfig_libs"
4570 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4571 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4575 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4577 #include <X11/Xmu/CharSet.h>
4579 int check = XmuCompareISOLatin1("big", "small");
4581 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4583 if test "$cf_cv_xaw_compat" = no
4585 # workaround for broken ".pc" files...
4586 case "$cf_x_athena_lib" in
4590 CF_VERBOSE(work around broken package)
4592 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4593 CF_TRY_PKG_CONFIG(xmu,[
4595 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4597 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4608 if test -z "$cf_x_athena_lib" ; then
4611 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4612 CF_X_ATHENA_LIBS($cf_x_athena)
4615 dnl ---------------------------------------------------------------------------
4616 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4617 dnl --------------------
4618 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4619 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4620 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4622 AC_REQUIRE([AC_PATH_XTRA])
4623 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4626 for cf_path in default \
4627 /usr/contrib/X11R6 \
4628 /usr/contrib/X11R5 \
4632 if test -z "$cf_x_athena_inc" ; then
4633 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4634 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4635 if test "$cf_path" != default ; then
4636 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4637 AC_MSG_CHECKING(for $cf_test in $cf_path)
4639 AC_MSG_CHECKING(for $cf_test)
4642 #include <X11/Intrinsic.h>
4643 #include <$cf_test>],[],
4646 AC_MSG_RESULT($cf_result)
4647 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4648 if test "$cf_result" = yes ; then
4649 test "$cf_path" = default && cf_x_athena_inc=default
4650 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4656 if test -z "$cf_x_athena_inc" ; then
4657 AC_MSG_WARN([Unable to find Athena header files])
4658 elif test "$cf_x_athena_inc" != default ; then
4659 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4662 dnl ---------------------------------------------------------------------------
4663 dnl CF_X_ATHENA_LIBS version: 13 updated: 2020/01/11 18:16:10
4664 dnl ----------------
4665 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4666 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4667 AC_DEFUN([CF_X_ATHENA_LIBS],
4668 [AC_REQUIRE([CF_X_TOOLKIT])
4669 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4672 for cf_path in default \
4673 /usr/contrib/X11R6 \
4674 /usr/contrib/X11R5 \
4679 ${cf_x_athena_root} \
4680 ${cf_x_athena_root}7 \
4681 ${cf_x_athena_root}6
4685 "-l$cf_lib -lXpm -lXmu" \
4686 "-l${cf_lib}_s -lXmu_s"
4688 test -n "$cf_x_athena_lib" && break
4690 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4691 cf_test=XawSimpleMenuAddGlobalActions
4692 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4693 CF_ADD_LIBS($cf_libs)
4694 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4696 #include <X11/Intrinsic.h>
4697 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4699 $cf_test((XtAppContext) 0)],
4702 AC_MSG_RESULT($cf_result)
4703 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4705 if test "$cf_result" = yes ; then
4706 cf_x_athena_lib="$cf_libs"
4710 test -n "$cf_x_athena_lib" && break
4714 if test -z "$cf_x_athena_lib" ; then
4716 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4719 CF_ADD_LIBS($cf_x_athena_lib)
4720 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4721 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4723 dnl ---------------------------------------------------------------------------
4724 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4726 AC_DEFUN([CF_X_EXT],[
4727 CF_TRY_PKG_CONFIG(Xext,,[
4728 AC_CHECK_LIB(Xext,XextCreateExtension,
4729 [CF_ADD_LIB(Xext)])])
4731 dnl ---------------------------------------------------------------------------
4732 dnl CF_X_TOOLKIT version: 26 updated: 2021/01/02 09:31:20
4734 dnl Check for X Toolkit libraries
4735 AC_DEFUN([CF_X_TOOLKIT],
4737 AC_REQUIRE([AC_PATH_XTRA])
4738 AC_REQUIRE([CF_CHECK_CACHE])
4740 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4741 # in some cases has installed dummy files in the former, other cases replaced
4742 # it with a link to the new location). This complicates the configure script.
4743 # Check for that pitfall, and recover using pkg-config
4745 # If none of these are set, the configuration is almost certainly broken.
4746 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4748 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4749 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4750 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4751 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4753 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4758 CF_TRY_PKG_CONFIG(xt,[
4764 # we have an "xt" package, but it may omit Xt's dependency on X11
4765 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4767 #include <X11/Xlib.h>
4769 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4770 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4771 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4772 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4773 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4774 if test "$cf_cv_xt_x11_compat" = no
4776 CF_VERBOSE(work around broken X11 dependency)
4777 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4778 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4783 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4785 #include <X11/Shell.h>
4786 ],[int num = IceConnectionNumber(0); (void) num
4787 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4789 if test "$cf_cv_xt_ice_compat" = no
4791 # workaround for broken ".pc" files used for X Toolkit.
4792 case "x$X_PRE_LIBS" in
4798 CF_VERBOSE(work around broken ICE dependency)
4799 CF_TRY_PKG_CONFIG(ice,
4800 [CF_TRY_PKG_CONFIG(sm)],
4801 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4811 LDFLAGS="$X_LIBS $LDFLAGS"
4812 CF_CHECK_CFLAGS($X_CFLAGS)
4814 AC_CHECK_FUNC(XOpenDisplay,,[
4815 AC_CHECK_LIB(X11,XOpenDisplay,
4816 [CF_ADD_LIB(X11)])])
4818 AC_CHECK_FUNC(XtAppInitialize,,[
4819 AC_CHECK_LIB(Xt, XtAppInitialize,
4820 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4822 LIBS="-lXt $LIBS"])])
4825 if test "$cf_have_X_LIBS" = no ; then
4827 [Unable to successfully link X Toolkit library (-lXt) with
4828 test program. You will have to check and add the proper libraries by hand
4832 dnl ---------------------------------------------------------------------------
4833 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4835 dnl Attempt to make a copy of a curses data item. This is needed in the
4836 dnl check-data configure tests when using ncurses, because the symbol may be
4837 dnl actually a function return-value. That could happen if the linker is
4838 dnl broken (does not resolve data-only references), or if ncurses is configured
4839 dnl to support re-entrant code.
4842 define([CF__CURSES_DATA],[
4843 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4844 const void *$1 = (const void *)($2);
4846 const void *$1 = &($2);
4848 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4850 dnl ---------------------------------------------------------------------------
4851 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4853 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4854 dnl are both available.
4855 define([CF__CURSES_HEAD],[
4857 #include <xcurses.h>
4858 char * XCursesProgramName = "test";
4860 #include <${cf_cv_ncurses_header:-curses.h}>
4861 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4862 #include <ncursesw/term.h>
4863 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4864 #include <ncurses/term.h>
4865 #elif defined(HAVE_TERM_H)
4870 dnl ---------------------------------------------------------------------------
4871 dnl CF__XOPEN_SOURCE_BODY version: 1 updated: 2022/09/10 15:17:35
4872 dnl ---------------------
4873 dnl body of test when test-compiling for _XOPEN_SOURCE check
4874 define([CF__XOPEN_SOURCE_BODY],
4876 #ifndef _XOPEN_SOURCE
4880 dnl ---------------------------------------------------------------------------
4881 dnl CF__XOPEN_SOURCE_HEAD version: 1 updated: 2022/09/10 15:17:03
4882 dnl ---------------------
4883 dnl headers to include when test-compiling for _XOPEN_SOURCE check
4884 define([CF__XOPEN_SOURCE_HEAD],
4888 #include <sys/types.h>