1 dnl***************************************************************************
2 dnl Copyright 2018-2021,2022 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 1.205 2022/07/27 23:35:25 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: 5 updated: 2015/04/23 20:35:30
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(); tgoto("?", 0,0)],
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($cf_cv_ncurses_header)
968 dnl ---------------------------------------------------------------------------
969 dnl CF_CURSES_LIBS version: 44 updated: 2021/01/02 09:31:20
971 dnl Look for the curses libraries. Older curses implementations may require
972 dnl termcap/termlib to be linked as well. Call CF_CURSES_CPPFLAGS first.
973 AC_DEFUN([CF_CURSES_LIBS],[
975 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
976 AC_MSG_CHECKING(if we have identified curses libraries)
977 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
978 [initscr(); tgoto("?", 0,0)],
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(); tgoto((char *)0, 0, 0);],
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 $EXTRA_CFLAGS)
1658 AC_SUBST(EXTRA_CFLAGS)
1660 dnl ---------------------------------------------------------------------------
1661 dnl CF_FUNC_CURSES_VERSION version: 8 updated: 2021/01/02 09:31:20
1662 dnl ----------------------
1663 dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
1664 dnl It's a character string "SVR4", not documented.
1665 AC_DEFUN([CF_FUNC_CURSES_VERSION],
1667 AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
1669 #include <${cf_cv_ncurses_header:-curses.h}>
1673 sprintf(temp, "%s\\n", curses_version());
1674 ${cf_cv_main_return:-return}(0);
1676 ,[cf_cv_func_curses_version=yes]
1677 ,[cf_cv_func_curses_version=no]
1678 ,[cf_cv_func_curses_version=unknown])
1680 test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION,1,[Define to 1 if we have curses_version function])
1682 dnl ---------------------------------------------------------------------------
1683 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
1685 dnl Check for openpty() function, along with <pty.h> header. It may need the
1686 dnl "util" library as well.
1687 AC_DEFUN([CF_FUNC_OPENPTY],
1689 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1690 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1691 cf_save_LIBS="$LIBS"
1692 test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
1693 for cf_header in pty.h libutil.h util.h
1696 #include <$cf_header>
1698 int x = openpty((int *)0, (int *)0, (char *)0,
1699 (struct termios *)0, (struct winsize *)0);
1701 cf_cv_func_openpty=$cf_header
1704 cf_cv_func_openpty=no
1707 LIBS="$cf_save_LIBS"
1710 dnl ---------------------------------------------------------------------------
1711 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1712 dnl -----------------
1713 dnl Test for availability of useful gcc __attribute__ directives to quiet
1714 dnl compiler warnings. Though useful, not all are supported -- and contrary
1715 dnl to documentation, unrecognized directives cause older compilers to barf.
1716 AC_DEFUN([CF_GCC_ATTRIBUTES],
1717 [AC_REQUIRE([AC_PROG_FGREP])dnl
1718 AC_REQUIRE([CF_C11_NORETURN])dnl
1720 if test "$GCC" = yes || test "$GXX" = yes
1722 cat > conftest.i <<EOF
1724 #define GCC_PRINTF 0
1729 #ifndef GCC_NORETURN
1730 #define GCC_NORETURN /* nothing */
1733 #define GCC_UNUSED /* nothing */
1736 if test "$GCC" = yes
1738 AC_CHECKING([for $CC __attribute__ directives])
1739 cat > "conftest.$ac_ext" <<EOF
1740 #line __oline__ "${as_me:-configure}"
1741 #include "confdefs.h"
1742 #include "conftest.h"
1743 #include "conftest.i"
1745 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1747 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1750 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1752 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1754 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1755 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1756 extern GCC_NORETURN void foo(void);
1757 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1759 cf_printf_attribute=no
1760 cf_scanf_attribute=no
1761 for cf_attribute in scanf printf unused noreturn
1763 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1764 cf_directive="__attribute__(($cf_attribute))"
1765 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1767 case "$cf_attribute" in
1769 cf_printf_attribute=yes
1770 cat >conftest.h <<EOF
1771 #define GCC_$cf_ATTRIBUTE 1
1775 cf_scanf_attribute=yes
1776 cat >conftest.h <<EOF
1777 #define GCC_$cf_ATTRIBUTE 1
1781 cat >conftest.h <<EOF
1782 #define GCC_$cf_ATTRIBUTE $cf_directive
1787 if AC_TRY_EVAL(ac_compile); then
1788 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1789 cat conftest.h >>confdefs.h
1790 case "$cf_attribute" in
1792 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1795 cf_value='/* nothing */'
1796 if test "$cf_printf_attribute" != no ; then
1797 cf_value='__attribute__((format(printf,fmt,var)))'
1798 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1800 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1803 cf_value='/* nothing */'
1804 if test "$cf_scanf_attribute" != no ; then
1805 cf_value='__attribute__((format(scanf,fmt,var)))'
1806 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1808 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1811 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1817 ${FGREP-fgrep} define conftest.i >>confdefs.h
1822 dnl ---------------------------------------------------------------------------
1823 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1825 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1826 dnl compatible), attempt to determine if icc/clang is actually used.
1827 AC_DEFUN([CF_GCC_VERSION],[
1828 AC_REQUIRE([AC_PROG_CC])
1830 if test "$GCC" = yes ; then
1831 AC_MSG_CHECKING(version of $CC)
1832 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1833 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1834 AC_MSG_RESULT($GCC_VERSION)
1836 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1837 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1839 dnl ---------------------------------------------------------------------------
1840 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1842 dnl Check if the compiler supports useful warning options. There's a few that
1843 dnl we don't use, simply because they're too noisy:
1845 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1846 dnl -Winline (usually not worthwhile)
1847 dnl -Wredundant-decls (system headers make this too noisy)
1848 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1849 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1850 dnl is enabled for ncurses using "--enable-const".
1854 dnl $1 is an optional list of gcc warning flags that a particular
1855 dnl application might want to use, e.g., "no-unused" for
1858 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1860 AC_DEFUN([CF_GCC_WARNINGS],
1862 AC_REQUIRE([CF_GCC_VERSION])
1863 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1864 cat > "conftest.$ac_ext" <<EOF
1865 #line __oline__ "${as_me:-configure}"
1866 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1868 if test "$INTEL_COMPILER" = yes
1870 # The "-wdXXX" options suppress warnings:
1871 # remark #1419: external declaration in primary source file
1872 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1873 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1874 # remark #193: zero used for undefined preprocessing identifier
1875 # remark #593: variable "curs_sb_left_arrow" was set but never used
1876 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1877 # remark #869: parameter "tw" was never referenced
1878 # remark #981: operands are evaluated in unspecified order
1879 # warning #279: controlling expression is constant
1881 AC_CHECKING([for $CC warning options])
1882 cf_save_CFLAGS="$CFLAGS"
1883 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1895 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1896 if AC_TRY_EVAL(ac_compile); then
1897 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1898 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1901 CFLAGS="$cf_save_CFLAGS"
1902 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1904 AC_CHECKING([for $CC warning options])
1905 cf_save_CFLAGS="$CFLAGS"
1907 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1908 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1909 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1910 for cf_opt in W Wall \
1911 Wbad-function-cast \
1914 Wdeclaration-after-statement \
1917 Wmissing-declarations \
1918 Wmissing-prototypes \
1922 Wstrict-prototypes \
1923 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1925 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1926 if AC_TRY_EVAL(ac_compile); then
1927 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1930 case "$GCC_VERSION" in
1932 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1937 case "$GCC_VERSION" in
1939 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1944 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1947 CFLAGS="$cf_save_CFLAGS"
1951 AC_SUBST(EXTRA_CFLAGS)
1953 dnl ---------------------------------------------------------------------------
1954 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
1955 dnl ----------------
1956 dnl Check for getopt's variables which are commonly defined in stdlib.h,
1957 dnl unistd.h or (nonstandard) in getopt.h
1958 AC_DEFUN([CF_GETOPT_HEADER],
1960 AC_HAVE_HEADERS(unistd.h getopt.h)
1961 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
1962 cf_cv_getopt_header=none
1963 for cf_header in stdio.h stdlib.h unistd.h getopt.h
1966 #include <$cf_header>],
1967 [int x = optind; char *y = optarg; (void)x; (void)y],
1968 [cf_cv_getopt_header=$cf_header
1972 if test "$cf_cv_getopt_header" != none ; then
1973 AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
1975 if test "$cf_cv_getopt_header" = getopt.h ; then
1976 AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
1979 dnl ---------------------------------------------------------------------------
1980 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1982 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1983 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1984 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1985 dnl since it is interwoven with GNU extensions.
1987 dnl Well, yes we could work around it...
1990 dnl $1 is the nominal value for _XOPEN_SOURCE
1991 AC_DEFUN([CF_GNU_SOURCE],
1993 cf_gnu_xopen_source=ifelse($1,,500,$1)
1995 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1996 AC_TRY_COMPILE([#include <sys/types.h>],[
1997 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1999 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
2002 # error not GNU C library
2004 [cf_cv_gnu_library=yes],
2005 [cf_cv_gnu_library=no])
2008 if test x$cf_cv_gnu_library = xyes; then
2010 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
2011 # was changed to help a little. newlib incorporated the change about 4
2013 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
2015 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2016 AC_TRY_COMPILE([#include <sys/types.h>],[
2017 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
2019 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
2022 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
2024 [cf_cv_gnu_library_219=yes],
2025 [cf_cv_gnu_library_219=no])
2029 if test "x$cf_cv_gnu_library_219" = xyes; then
2031 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
2032 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2035 #include <sys/types.h>
2037 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2040 # error GNU C library is too old
2042 [cf_cv_gnu_dftsrc_219=yes],
2043 [cf_cv_gnu_dftsrc_219=no])
2045 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2047 cf_cv_gnu_dftsrc_219=maybe
2050 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2052 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2053 AC_TRY_COMPILE([#include <sys/types.h>],[
2054 #ifndef _XOPEN_SOURCE
2055 #error expected _XOPEN_SOURCE to be defined
2057 [cf_cv_gnu_source=no],
2058 [cf_save="$CPPFLAGS"
2059 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2060 AC_TRY_COMPILE([#include <sys/types.h>],[
2061 #ifdef _XOPEN_SOURCE
2062 #error expected _XOPEN_SOURCE to be undefined
2064 [cf_cv_gnu_source=no],
2065 [cf_cv_gnu_source=yes])
2070 if test "$cf_cv_gnu_source" = yes
2072 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2073 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2074 AC_TRY_COMPILE([#include <sys/types.h>],[
2075 #ifdef _DEFAULT_SOURCE
2076 #error expected _DEFAULT_SOURCE to be undefined
2078 [cf_cv_default_source=no],
2079 [cf_cv_default_source=yes])
2081 if test "$cf_cv_default_source" = yes
2083 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2090 dnl ---------------------------------------------------------------------------
2091 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2093 dnl Construct a search-list of directories for a nonstandard header-file
2096 dnl $1 = the variable to return as result
2097 dnl $2 = the package name
2098 AC_DEFUN([CF_HEADER_PATH],
2102 # collect the current set of include-directories from compiler flags
2103 cf_header_path_list=""
2104 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2105 for cf_header_path in $CPPFLAGS $CFLAGS
2107 case "$cf_header_path" in
2109 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2110 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2111 cf_header_path_list="$cf_header_path_list [$]$1"
2117 # add the variations for the package we are looking for
2118 CF_SUBDIR_PATH($1,$2,include)
2120 test "$includedir" != NONE && \
2121 test "$includedir" != "/usr/include" && \
2122 test -d "$includedir" && {
2123 test -d "$includedir" && $1="[$]$1 $includedir"
2124 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2127 test "$oldincludedir" != NONE && \
2128 test "$oldincludedir" != "/usr/include" && \
2129 test -d "$oldincludedir" && {
2130 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2131 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2134 $1="[$]$1 $cf_header_path_list"
2136 dnl ---------------------------------------------------------------------------
2137 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2139 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2140 AC_DEFUN([CF_HELP_MESSAGE],
2141 [CF_ACVERSION_CHECK(2.53,[],[
2142 AC_DIVERT_HELP($1)])dnl
2144 dnl ---------------------------------------------------------------------------
2145 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
2146 dnl -----------------
2147 dnl If we do not have a given script, look for it in the parent directory.
2148 AC_DEFUN([CF_INHERIT_SCRIPT],
2150 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
2152 dnl ---------------------------------------------------------------------------
2153 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2155 dnl prompt for/fill-in useful install-program options
2156 AC_DEFUN([CF_INSTALL_OPTS],
2162 dnl ---------------------------------------------------------------------------
2163 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2164 dnl ----------------
2165 dnl Almost all "install" programs default to the current user's ownership.
2166 dnl Almost - MINIX is an exception.
2167 AC_DEFUN([CF_INSTALL_OPT_O],
2169 AC_MSG_CHECKING(if install needs to be told about ownership)
2170 case `$ac_config_guess` in
2179 AC_MSG_RESULT($with_install_o)
2180 if test "x$with_install_o" = xyes
2182 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'`"
2187 AC_SUBST(INSTALL_OPT_O)
2189 dnl ---------------------------------------------------------------------------
2190 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2191 dnl ----------------
2192 dnl Some install-programs accept a "-p" option to preserve file modification
2193 dnl timestamps. That can be useful as an install option, as well as a way to
2194 dnl avoid the need for ranlib after copying a static archive.
2195 AC_DEFUN([CF_INSTALL_OPT_P],
2197 : "${INSTALL:=install}"
2198 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2203 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2205 if test -f conftest.out/conftest.in
2207 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2208 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2209 if test -s conftest.err
2224 dnl ---------------------------------------------------------------------------
2225 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2226 dnl ----------------
2227 dnl By default, we should strip executables which are installed, but leave the
2228 dnl ability to suppress that for unit-testing.
2229 AC_DEFUN([CF_INSTALL_OPT_S],
2231 AC_MSG_CHECKING(if you want to install stripped executables)
2232 CF_ARG_DISABLE(stripping,
2233 [ --disable-stripping do not strip (debug info) installed executables],
2234 [enable_stripping=no],
2235 [enable_stripping=yes])
2236 AC_MSG_RESULT($enable_stripping)
2238 if test "$enable_stripping" = yes
2244 AC_SUBST(INSTALL_OPT_S)
2246 dnl ---------------------------------------------------------------------------
2247 dnl CF_INTEL_COMPILER version: 8 updated: 2021/01/01 16:53:59
2248 dnl -----------------
2249 dnl Check if the given compiler is really the Intel compiler for Linux. It
2250 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2251 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2253 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2254 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2255 dnl the wrappers for gcc and g++ warnings.
2257 dnl $1 = GCC (default) or GXX
2258 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2259 dnl $3 = CFLAGS (default) or CXXFLAGS
2260 AC_DEFUN([CF_INTEL_COMPILER],[
2261 AC_REQUIRE([AC_CANONICAL_HOST])
2262 ifelse([$2],,INTEL_COMPILER,[$2])=no
2264 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2267 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2268 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2269 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2271 #ifdef __INTEL_COMPILER
2275 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2276 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2278 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2279 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2284 dnl ---------------------------------------------------------------------------
2285 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2287 dnl For the given system and compiler, find the compiler flags to pass to the
2288 dnl loader to use the "rpath" feature.
2289 AC_DEFUN([CF_LD_RPATH_OPT],
2291 AC_REQUIRE([CF_CHECK_CACHE])
2294 if test "x$cf_cv_enable_rpath" != xno
2296 AC_MSG_CHECKING(for an rpath option)
2297 case "$cf_cv_system_name" in
2299 if test "$GCC" = yes; then
2300 LD_RPATH_OPT="-Wl,-rpath,"
2302 LD_RPATH_OPT="-rpath "
2305 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2306 LD_RPATH_OPT="-Wl,-rpath,"
2308 (openbsd[[2-9]].*|mirbsd*)
2309 LD_RPATH_OPT="-Wl,-rpath,"
2312 LD_RPATH_OPT="-rpath "
2315 LD_RPATH_OPT="-Wl,-rpath,"
2318 LD_RPATH_OPT="-rpath "
2326 AC_MSG_RESULT($LD_RPATH_OPT)
2328 case "x$LD_RPATH_OPT" in
2330 AC_MSG_CHECKING(if we need a space after rpath option)
2331 cf_save_LIBS="$LIBS"
2332 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2333 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2334 LIBS="$cf_save_LIBS"
2335 AC_MSG_RESULT($cf_rpath_space)
2336 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2341 dnl ---------------------------------------------------------------------------
2342 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2344 dnl Construct a search-list of directories for a nonstandard library-file
2347 dnl $1 = the variable to return as result
2348 dnl $2 = the package name
2349 AC_DEFUN([CF_LIBRARY_PATH],
2352 cf_library_path_list=""
2353 if test -n "${LDFLAGS}${LIBS}" ; then
2354 for cf_library_path in $LDFLAGS $LIBS
2356 case "$cf_library_path" in
2358 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2359 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2360 cf_library_path_list="$cf_library_path_list [$]$1"
2366 CF_SUBDIR_PATH($1,$2,lib)
2368 $1="$cf_library_path_list [$]$1"
2370 dnl ---------------------------------------------------------------------------
2371 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2373 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2374 dnl acts as a placeholder.
2376 dnl The ".PHONY" feature was proposed in 2011 here
2377 dnl https://www.austingroupbugs.net/view.php?id=523
2378 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2380 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2381 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2383 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2384 dnl date unspecified).
2386 dnl + It was adopted in NetBSD make in June 1995.
2388 dnl + The other BSD make programs are derived from the NetBSD make (and for
2389 dnl that reason are not actually different "implementations").
2391 dnl + Some features of NetBSD make were actually adapted from pmake, which
2392 dnl began as a modified GNU make starting in 1993.
2394 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2395 dnl GNU make extension, but is less well known than the BSD make.
2396 AC_DEFUN([CF_MAKE_PHONY],[
2397 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2400 mkdir conftest || exit 1
2402 cat >makefile <<'CF_EOF'
2406 @echo "** making [$]@ [$](DATA)"
2408 @echo "** making [$]@ [$](DATA)"
2410 @echo "** making [$]@ [$](DATA)"
2411 echo [$](DATA) > [$]@
2413 @echo "** making [$]@ [$](DATA)"
2414 echo [$](DATA) > [$]@
2416 for cf_data in 1 2 3
2418 ${MAKE:-make} always DATA=$cf_data
2419 ${MAKE:-make} once DATA=$cf_data
2420 ${MAKE:-make} -t always once
2421 if test -f always ; then
2422 echo "no (case 1)" > ../conftest.tmp
2423 elif test ! -f always.out ; then
2424 echo "no (case 2)" > ../conftest.tmp
2425 elif test ! -f once.out ; then
2426 echo "no (case 3)" > ../conftest.tmp
2427 elif ! cmp -s always.out once.out ; then
2428 echo "no (case 4)" > ../conftest.tmp
2429 diff always.out once.out
2431 cf_check="`cat always.out`"
2432 if test "x$cf_check" != "x$cf_data" ; then
2433 echo "no (case 5)" > ../conftest.tmp
2435 echo yes > ../conftest.tmp
2443 cf_cv_make_PHONY="`cat conftest.tmp`"
2448 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2449 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2450 AC_SUBST(MAKE_NO_PHONY)
2451 AC_SUBST(MAKE_PHONY)
2453 dnl ---------------------------------------------------------------------------
2454 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2456 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2457 dnl a monocase filesystem.
2458 AC_DEFUN([CF_MAKE_TAGS],[
2459 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2461 AC_CHECK_PROGS(CTAGS, exctags ctags)
2462 AC_CHECK_PROGS(ETAGS, exetags etags)
2464 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2466 if test "$cf_cv_mixedcase" = yes ; then
2467 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2472 if test "$MAKE_UPPER_TAGS" = yes ; then
2478 if test "$MAKE_LOWER_TAGS" = yes ; then
2487 AC_SUBST(MAKE_UPPER_TAGS)
2488 AC_SUBST(MAKE_LOWER_TAGS)
2490 dnl ---------------------------------------------------------------------------
2491 dnl CF_MATH_LIB version: 11 updated: 2022/07/27 19:01:48
2493 dnl Checks for libraries. At least one UNIX system, Apple Macintosh
2494 dnl Rhapsody 5.5, does not have -lm. We cannot use the simpler
2495 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
2496 AC_DEFUN([CF_MATH_LIB],
2498 AC_CACHE_CHECK(if -lm needed for math functions,
2505 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2506 [cf_cv_need_libm=no],
2507 [cf_cv_need_libm=yes])])
2509 if test "$cf_cv_need_libm" = yes
2512 cf_save_LIBS="$LIBS"
2514 AC_CACHE_CHECK(if -lm is available for math functions,
2521 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2522 [cf_cv_have_libm=yes],
2523 [cf_cv_have_libm=no])])
2524 LIBS="$cf_save_LIBS"
2526 if test "$cf_cv_have_libm" = yes
2528 ifelse($1,,[CF_ADD_LIB(m)],[$1=-lm])
2534 if test "$cf_cv_have_libm" = yes
2536 AC_DEFINE(HAVE_MATH_FUNCS,1,[Define to 1 if math functions are available])
2539 dnl ---------------------------------------------------------------------------
2540 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2541 dnl ----------------------
2542 dnl Check if the file-system supports mixed-case filenames. If we're able to
2543 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2544 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2546 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2547 if test "$cross_compiling" = yes ; then
2548 case "$target_alias" in
2549 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2557 rm -f conftest CONFTEST
2559 if test -f CONFTEST ; then
2564 rm -f conftest CONFTEST
2567 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2569 dnl ---------------------------------------------------------------------------
2570 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2572 dnl Write a debug message to config.log, along with the line number in the
2573 dnl configure script.
2574 AC_DEFUN([CF_MSG_LOG],[
2575 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2577 dnl ---------------------------------------------------------------------------
2578 dnl CF_NCURSES_CC_CHECK version: 5 updated: 2020/12/31 20:19:42
2579 dnl -------------------
2580 dnl Check if we can compile with ncurses' header file
2581 dnl $1 is the cache variable to set
2582 dnl $2 is the header-file to include
2583 dnl $3 is the root name (ncurses or ncursesw)
2584 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2586 ]ifelse($3,ncursesw,[
2587 #define _XOPEN_SOURCE_EXTENDED
2588 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2589 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2592 #ifdef NCURSES_VERSION
2593 ]ifelse($3,ncursesw,[
2598 printf("%s\\n", NCURSES_VERSION);
2610 dnl ---------------------------------------------------------------------------
2611 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2612 dnl -----------------
2613 dnl Tie together the configure-script macros for ncurses, preferring these in
2615 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2616 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2617 dnl c) just plain libraries
2619 dnl $1 is the root library name (default: "ncurses")
2620 AC_DEFUN([CF_NCURSES_CONFIG],[
2621 AC_REQUIRE([CF_PKG_CONFIG])
2622 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2623 cf_have_ncuconfig=no
2625 if test "x${PKG_CONFIG:=none}" != xnone; then
2626 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2627 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2630 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2631 cf_have_ncuconfig=unknown
2633 cf_save_CFLAGS="$CFLAGS"
2634 cf_save_CPPFLAGS="$CPPFLAGS"
2635 cf_save_LIBS="$LIBS"
2637 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2638 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2640 # while -W for passing linker flags is prevalent, it is not "standard".
2641 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2642 # incompatible _and_ non-standard -W option which gives an error. Work
2643 # around that pitfall.
2644 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2646 CF_ADD_CFLAGS($cf_pkg_cflags)
2647 CF_ADD_LIBS($cf_pkg_libs)
2649 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2650 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2651 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2653 { const char *xx = curses_version(); return (xx == 0); }],
2654 [cf_test_ncuconfig=yes],
2655 [cf_test_ncuconfig=no],
2656 [cf_test_ncuconfig=maybe])],
2657 [cf_test_ncuconfig=no])
2659 CFLAGS="$cf_save_CFLAGS"
2660 CPPFLAGS="$cf_save_CPPFLAGS"
2661 LIBS="$cf_save_LIBS"
2663 if test "x$cf_test_ncuconfig" != xyes; then
2664 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2665 cf_pkg_cflags="$cf_temp"
2666 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2667 cf_pkg_libs="$cf_temp"
2672 CF_APPEND_CFLAGS($cf_pkg_cflags)
2673 CF_ADD_LIBS($cf_pkg_libs)
2675 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2676 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2677 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2679 { const char *xx = curses_version(); return (xx == 0); }],
2680 [cf_have_ncuconfig=yes],
2681 [cf_have_ncuconfig=no],
2682 [cf_have_ncuconfig=maybe])],
2683 [cf_have_ncuconfig=no])
2684 AC_MSG_RESULT($cf_have_ncuconfig)
2685 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2686 if test "$cf_have_ncuconfig" != "yes"
2688 CPPFLAGS="$cf_save_CPPFLAGS"
2689 LIBS="$cf_save_LIBS"
2690 NCURSES_CONFIG_PKG=none
2692 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2693 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2699 NCURSES_CONFIG_PKG=none
2702 NCURSES_CONFIG_PKG=none
2705 if test "x$cf_have_ncuconfig" = "xno"; then
2706 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2708 CF_ACVERSION_CHECK(2.52,
2709 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2710 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2712 if test "$NCURSES_CONFIG" != none ; then
2714 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
2715 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2717 # even with config script, some packages use no-override for curses.h
2718 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2720 dnl like CF_NCURSES_CPPFLAGS
2721 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2723 dnl like CF_NCURSES_LIBS
2724 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2725 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2727 dnl like CF_NCURSES_VERSION
2728 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2732 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2733 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2740 dnl ---------------------------------------------------------------------------
2741 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2742 dnl -------------------
2743 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2744 dnl the CPPFLAGS variable so we can include its header.
2746 dnl The header files may be installed as either curses.h, or ncurses.h (would
2747 dnl be obsolete, except that some packagers prefer this name to distinguish it
2748 dnl from a "native" curses implementation). If not installed for overwrite,
2749 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2750 dnl /usr/include/ncurses), but someone may have installed overwriting the
2751 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2752 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2755 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2756 dnl is already in the include-path, don't even bother with this, since we cannot
2757 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2759 dnl The optional parameter gives the root name of the library, in case it is
2760 dnl not installed as the default curses library. That is how the
2761 dnl wide-character version of ncurses is installed.
2762 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2763 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2765 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2766 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2768 test -n "$cf_cv_curses_dir" && \
2769 test "$cf_cv_curses_dir" != "no" && { \
2770 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2773 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2774 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2775 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2776 for cf_header in $cf_header_list
2778 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2779 test "$cf_cv_ncurses_h" != no && break
2786 # some applications need this, but should check for NCURSES_VERSION
2787 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2791 dnl ---------------------------------------------------------------------------
2792 dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
2793 dnl --------------------
2794 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
2795 dnl may provide these functions. Define the symbol if it is not defined, and
2797 AC_DEFUN([CF_NCURSES_EXT_FUNCS],
2799 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
2801 #include <${cf_cv_ncurses_header:-curses.h}>],
2803 int x = NCURSES_EXT_FUNCS
2804 ],[cf_cv_ncurses_ext_funcs=defined],[
2806 #include <${cf_cv_ncurses_header:-curses.h}>],
2808 (void) assume_default_colors (0, 0);
2809 (void) curses_version ();
2810 (void) define_key (0, 0);
2811 (void) is_term_resized (0, 0);
2812 (void) key_defined (0);
2813 (void) keybound (0, 0);
2814 (void) keyok (0, 0);
2815 (void) resize_term (0, 0);
2816 (void) resizeterm (0, 0);
2817 (void) use_default_colors ();
2818 (void) use_extended_names (0);
2819 (void) wresize (0, 0, 0);],
2820 [cf_cv_ncurses_ext_funcs=yes],
2821 [cf_cv_ncurses_ext_funcs=no])
2824 test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
2826 dnl ---------------------------------------------------------------------------
2827 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2828 dnl -----------------
2829 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2830 dnl variations of ncurses' installs.
2832 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2833 AC_DEFUN([CF_NCURSES_HEADER],[
2835 if test "$cf_cv_ncurses_h" != no ; then
2836 cf_cv_ncurses_header=$cf_cv_ncurses_h
2839 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2840 test -n "$verbose" && echo
2841 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2842 test -n "$verbose" && echo "search path $cf_search"
2843 cf_save2_CPPFLAGS="$CPPFLAGS"
2844 for cf_incdir in $cf_search
2846 CF_ADD_INCDIR($cf_incdir)
2851 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2852 if test "$cf_cv_ncurses_h2" != no ; then
2853 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2854 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2857 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2859 CPPFLAGS="$cf_save2_CPPFLAGS"
2860 test "$cf_cv_ncurses_h2" != no && break
2862 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2865 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2866 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
2867 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
2868 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
2870 CF_ADD_INCDIR($cf_1st_incdir)
2874 # Set definitions to allow ifdef'ing for ncurses.h
2876 case "$cf_cv_ncurses_header" in
2878 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2882 case "$cf_cv_ncurses_header" in
2883 (ncurses/curses.h|ncurses/ncurses.h)
2884 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2886 (ncursesw/curses.h|ncursesw/ncurses.h)
2887 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2892 dnl ---------------------------------------------------------------------------
2893 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
2895 dnl Look for the ncurses library. This is a little complicated on Linux,
2896 dnl because it may be linked with the gpm (general purpose mouse) library.
2897 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2898 dnl unusable with ncurses. However, we don't want to link with gpm unless
2899 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2900 dnl and the linker will record a dependency.
2902 dnl The optional parameter gives the root name of the library, in case it is
2903 dnl not installed as the default curses library. That is how the
2904 dnl wide-character version of ncurses is installed.
2905 AC_DEFUN([CF_NCURSES_LIBS],
2906 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2908 cf_nculib_root=ifelse($1,,ncurses,$1)
2909 # This works, except for the special case where we find gpm, but
2910 # ncurses is in a nonstandard location via $LIBS, and we really want
2913 cf_ncurses_SAVE="$LIBS"
2914 AC_CHECK_LIB(gpm,Gpm_Open,
2915 [AC_CHECK_LIB(gpm,initscr,
2916 [LIBS="$cf_ncurses_SAVE"],
2917 [cf_ncurses_LIBS="-lgpm"])])
2921 # This is only necessary if you are linking against an obsolete
2922 # version of ncurses (but it should do no harm, since it is static).
2923 if test "$cf_nculib_root" = ncurses ; then
2924 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2929 CF_ADD_LIBS($cf_ncurses_LIBS)
2931 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
2933 CF_ADD_LIBS(-l$cf_nculib_root)
2935 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2936 [#include <${cf_cv_ncurses_header:-curses.h}>],
2941 if test -n "$cf_ncurses_LIBS" ; then
2942 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2943 cf_ncurses_SAVE="$LIBS"
2944 for p in $cf_ncurses_LIBS ; do
2945 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
2946 if test "$q" != "$LIBS" ; then
2950 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2951 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2952 [AC_MSG_RESULT(yes)],
2954 LIBS="$cf_ncurses_SAVE"])
2957 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2958 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2960 dnl ---------------------------------------------------------------------------
2961 dnl CF_NCURSES_PTHREADS version: 2 updated: 2016/04/22 05:07:41
2962 dnl -------------------
2963 dnl Use this followup check to ensure that we link with pthreads if ncurses
2965 AC_DEFUN([CF_NCURSES_PTHREADS],[
2966 : ${cf_nculib_root:=ifelse($1,,ncurses,$1)}
2967 AC_CHECK_LIB($cf_nculib_root,_nc_init_pthreads,
2968 cf_cv_ncurses_pthreads=yes,
2969 cf_cv_ncurses_pthreads=no)
2970 if test "$cf_cv_ncurses_pthreads" = yes
2972 CF_ADD_LIBS(-lpthread)
2975 dnl ---------------------------------------------------------------------------
2976 dnl CF_NCURSES_VERSION version: 16 updated: 2020/12/31 20:19:42
2977 dnl ------------------
2978 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2979 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
2980 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2981 AC_DEFUN([CF_NCURSES_VERSION],
2983 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2984 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2985 cf_cv_ncurses_version=no
2987 rm -f "$cf_tempfile"
2989 #include <${cf_cv_ncurses_header:-curses.h}>
2993 FILE *fp = fopen("$cf_tempfile", "w");
2994 #ifdef NCURSES_VERSION
2995 # ifdef NCURSES_VERSION_PATCH
2996 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2998 fprintf(fp, "%s\\n", NCURSES_VERSION);
3002 fprintf(fp, "old\\n");
3007 ${cf_cv_main_return:-return}(0);
3009 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
3011 # This will not work if the preprocessor splits the line after the
3012 # Autoconf token. The 'unproto' program does that.
3013 cat > "conftest.$ac_ext" <<EOF
3014 #include <${cf_cv_ncurses_header:-curses.h}>
3016 #ifdef NCURSES_VERSION
3017 Autoconf NCURSES_VERSION
3025 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
3027 if test -f conftest.out ; then
3028 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
3029 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3033 rm -f "$cf_tempfile"
3035 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3037 dnl ---------------------------------------------------------------------------
3038 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
3039 dnl ----------------------
3040 dnl Check for ncurses "wrap-prefix" used for public variables which have been
3041 dnl wrapped with a function to help with concurrency control.
3042 AC_DEFUN([CF_NCURSES_WRAP_PREFIX],
3044 AC_MSG_CHECKING(for ncurses wrap-prefix)
3045 AC_ARG_WITH(ncurses-wrap-prefix,
3046 [ --with-ncurses-wrap-prefix naming-prefix for ncurses wrapped-variables],
3047 [NCURSES_WRAP_PREFIX=$withval],
3048 [NCURSES_WRAP_PREFIX=_nc_])
3049 AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
3051 AC_SUBST(NCURSES_WRAP_PREFIX)
3053 dnl ---------------------------------------------------------------------------
3054 dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
3055 dnl ----------------
3056 dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
3057 dnl Some workarounds are needed in client programs to allow them to compile.
3058 AC_DEFUN([CF_NETBSD_FORM_H],[
3059 AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
3061 #include <${cf_cv_ncurses_header:-curses.h}>
3065 int y = current_field(form)->cursor_ypos;
3066 int x = current_field(form)->cursor_xpos;
3067 ],[cf_cv_netbsd_form_h=yes
3068 ],[cf_cv_netbsd_form_h=no])
3071 test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
3073 dnl ---------------------------------------------------------------------------
3074 dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
3075 dnl ----------------
3076 dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
3077 dnl Some workarounds are needed in client programs to allow them to compile.
3078 AC_DEFUN([CF_NETBSD_MENU_H],[
3079 AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
3081 #include <${cf_cv_ncurses_header:-curses.h}>
3085 int y = menu->max_item_width;
3086 ],[cf_cv_netbsd_menu_h=yes
3087 ],[cf_cv_netbsd_menu_h=no])
3090 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])
3092 dnl ---------------------------------------------------------------------------
3093 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
3094 dnl ------------------
3095 dnl see CF_WITH_NO_LEAKS
3097 dnl $1 = option/name
3099 dnl $3 = symbol to define if the option is set
3100 dnl $4 = additional actions to take if the option is set
3101 AC_DEFUN([CF_NO_LEAKS_OPTION],[
3102 AC_MSG_CHECKING(if you want to use $1 for testing)
3105 [case "x$withval" in
3108 : "${with_cflags:=-g}"
3109 : "${enable_leaks:=no}"
3111 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
3117 AC_MSG_RESULT(${with_$1:-no})
3119 case ".$with_cflags" in
3131 dnl ---------------------------------------------------------------------------
3132 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3134 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3135 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3136 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3137 dnl delayed evaluation of those symbols.
3138 AC_DEFUN([CF_PATH_SYNTAX],[
3139 if test "x$prefix" != xNONE; then
3140 cf_path_syntax="$prefix"
3142 cf_path_syntax="$ac_default_prefix"
3146 (.\[$]\(*\)*|.\'*\'*)
3150 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3152 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3156 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3161 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3164 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3168 dnl ---------------------------------------------------------------------------
3169 dnl CF_PDCURSES_X11 version: 15 updated: 2021/01/02 09:31:20
3171 dnl Configure for PDCurses' X11 library
3172 AC_DEFUN([CF_PDCURSES_X11],[
3173 AC_REQUIRE([CF_X_ATHENA])
3175 CF_ACVERSION_CHECK(2.52,
3176 [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
3177 [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
3179 if test "$XCURSES_CONFIG" != none ; then
3181 CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
3182 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
3184 cf_cv_lib_XCurses=yes
3188 LDFLAGS="$LDFLAGS $X_LIBS"
3189 CF_CHECK_CFLAGS($X_CFLAGS)
3190 AC_CHECK_LIB(X11,XOpenDisplay,
3191 [CF_ADD_LIBS(-lX11)],,
3192 [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
3193 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
3194 CF_ADD_LIBS(-lXCurses)
3196 #include <xcurses.h>
3197 char *XCursesProgramName = "test";
3199 [cf_cv_lib_XCurses=yes],
3200 [cf_cv_lib_XCurses=no])
3205 if test "$cf_cv_lib_XCurses" = yes ; then
3206 AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
3207 AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
3208 AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
3210 AC_MSG_ERROR(Cannot link with XCurses)
3213 dnl ---------------------------------------------------------------------------
3214 dnl CF_PKG_CONFIG version: 12 updated: 2021/10/10 20:18:09
3216 dnl Check for the package-config program, unless disabled by command-line.
3218 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3219 AC_DEFUN([CF_PKG_CONFIG],
3221 AC_MSG_CHECKING(if you want to use pkg-config)
3222 AC_ARG_WITH(pkg-config,
3223 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3224 [cf_pkg_config=$withval],
3225 [cf_pkg_config=yes])
3226 AC_MSG_RESULT($cf_pkg_config)
3228 case "$cf_pkg_config" in
3233 CF_ACVERSION_CHECK(2.52,
3234 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3235 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3242 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3243 if test "$PKG_CONFIG" != none ; then
3244 CF_PATH_SYNTAX(PKG_CONFIG)
3245 elif test "x$cf_pkg_config" != xno ; then
3246 AC_MSG_WARN(pkg-config is not installed)
3249 AC_SUBST(PKG_CONFIG)
3251 dnl ---------------------------------------------------------------------------
3252 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3253 dnl -----------------
3254 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3256 dnl POSIX.1-1990 _POSIX_SOURCE
3257 dnl POSIX.1-1990 and _POSIX_SOURCE and
3258 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3260 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3261 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3262 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3265 dnl $1 is the nominal value for _POSIX_C_SOURCE
3266 AC_DEFUN([CF_POSIX_C_SOURCE],
3267 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3269 if test "$cf_cv_posix_visible" = no; then
3271 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3273 cf_save_CFLAGS="$CFLAGS"
3274 cf_save_CPPFLAGS="$CPPFLAGS"
3276 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3277 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3279 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3280 CF_MSG_LOG(if the symbol is already defined go no further)
3281 AC_TRY_COMPILE([#include <sys/types.h>],[
3282 #ifndef _POSIX_C_SOURCE
3285 [cf_cv_posix_c_source=no],
3286 [cf_want_posix_source=no
3287 case .$cf_POSIX_C_SOURCE in
3289 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3292 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3293 cf_want_posix_source=yes
3296 cf_want_posix_source=yes
3299 if test "$cf_want_posix_source" = yes ; then
3300 AC_TRY_COMPILE([#include <sys/types.h>],[
3301 #ifdef _POSIX_SOURCE
3304 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3306 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3307 CFLAGS="$cf_trim_CFLAGS"
3308 CPPFLAGS="$cf_trim_CPPFLAGS"
3309 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3310 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3311 AC_TRY_COMPILE([#include <sys/types.h>],[
3312 #ifndef _POSIX_C_SOURCE
3315 [cf_cv_posix_c_source=no])
3316 CFLAGS="$cf_save_CFLAGS"
3317 CPPFLAGS="$cf_save_CPPFLAGS"
3321 if test "$cf_cv_posix_c_source" != no ; then
3322 CFLAGS="$cf_trim_CFLAGS"
3323 CPPFLAGS="$cf_trim_CPPFLAGS"
3324 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3327 fi # cf_cv_posix_visible
3330 dnl ---------------------------------------------------------------------------
3331 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3332 dnl ----------------
3333 dnl POSIX documents test-macros which an application may set before any system
3334 dnl headers are included to make features available.
3336 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3337 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3338 dnl recent features visible in the system header files unless the application
3339 dnl overrides the corresponding test-macros. Doing that introduces portability
3342 dnl This macro makes a special check for the symbols used for this, to avoid a
3343 dnl conflicting definition.
3344 AC_DEFUN([CF_POSIX_VISIBLE],
3346 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3347 AC_TRY_COMPILE([#include <stdio.h>],[
3348 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3349 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3350 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3351 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3352 #error conflicting symbols found
3354 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3357 dnl ---------------------------------------------------------------------------
3358 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3360 dnl Append definitions and rules for the given programs to the subdirectory
3361 dnl Makefiles, and the recursion rule for the top-level Makefile.
3364 dnl $1 = script to run
3365 dnl $2 = list of subdirectories
3369 AC_DEFUN([CF_PRG_RULES],
3373 if test ! -d "$srcdir/$cf_dir" ; then
3375 elif test -f "$srcdir/$cf_dir/programs" ; then
3376 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3381 dnl ---------------------------------------------------------------------------
3382 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3384 dnl standard check for CC, plus followup sanity checks
3385 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3386 AC_DEFUN([CF_PROG_CC],[
3387 CF_ACVERSION_CHECK(2.53,
3388 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3389 AC_REQUIRE([AC_PROG_CC])],
3391 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3393 CF_ACVERSION_CHECK(2.52,
3398 dnl ---------------------------------------------------------------------------
3399 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3401 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3402 dnl misc/tabset install won't work properly. Usually this happens only when
3403 dnl using the fallback mkinstalldirs script
3404 AC_DEFUN([CF_PROG_INSTALL],
3410 CF_DIRNAME(cf_dir,$INSTALL)
3411 test -z "$cf_dir" && cf_dir=.
3412 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3416 dnl ---------------------------------------------------------------------------
3417 dnl CF_PROG_LINT version: 4 updated: 2019/11/20 18:55:37
3419 AC_DEFUN([CF_PROG_LINT],
3421 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3423 (xcppcheck|x*/cppcheck)
3424 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3429 dnl ---------------------------------------------------------------------------
3430 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3431 dnl ----------------
3432 dnl Remove a given option from CFLAGS/CPPFLAGS
3433 dnl $1 = option to remove
3434 dnl $2 = variable to update
3435 dnl $3 = nonempty to allow verbose message
3436 define([CF_REMOVE_CFLAGS],
3438 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3441 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3442 test "[$]$2" != "$cf_old_cflag" || break
3443 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3447 dnl ---------------------------------------------------------------------------
3448 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3449 dnl ----------------
3450 dnl Remove all -U and -D options that refer to the given symbol from a list
3451 dnl of C compiler options. This works around the problem that not all
3452 dnl compilers process -U and -D options from left-to-right, so a -U option
3453 dnl cannot be used to cancel the effect of a preceding -D option.
3455 dnl $1 = target (which could be the same as the source variable)
3456 dnl $2 = source (including '$')
3457 dnl $3 = symbol to remove
3458 define([CF_REMOVE_DEFINE],
3461 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3462 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3464 dnl ---------------------------------------------------------------------------
3465 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3466 dnl ---------------------
3467 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3468 dnl $1 = name of current macro
3469 define([CF_RESTORE_XTRA_FLAGS],
3471 LIBS="$cf_save_LIBS_$1"
3472 CFLAGS="$cf_save_CFLAGS_$1"
3473 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3475 dnl ---------------------------------------------------------------------------
3476 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3478 AC_DEFUN([CF_RPATH_HACK],
3479 [AC_REQUIRE([AC_PROG_FGREP])dnl
3480 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3482 AC_MSG_CHECKING(for updated LDFLAGS)
3483 if test -n "$LD_RPATH_OPT" ; then
3484 AC_MSG_RESULT(maybe)
3486 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3487 cf_rpath_list="/usr/lib /lib"
3488 if test "$cf_ldd_prog" != no
3492 AC_TRY_LINK([#include <stdio.h>],
3494 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3495 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3497 # If we passed the link-test, but get a "not found" on a given library,
3498 # this could be due to inept reconfiguration of gcc to make it only
3499 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3500 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3501 # /usr/local libraries.
3502 if test -n "$cf_rpath_oops"
3504 for cf_rpath_src in $cf_rpath_oops
3506 for cf_rpath_dir in \
3511 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3513 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3514 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3522 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3524 CF_RPATH_HACK_2(LDFLAGS)
3525 CF_RPATH_HACK_2(LIBS)
3527 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3531 AC_SUBST(EXTRA_LDFLAGS)
3533 dnl ---------------------------------------------------------------------------
3534 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3536 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3537 dnl EXTRA_LDFLAGS for each -L option found.
3539 dnl $cf_rpath_list contains a list of directories to ignore.
3541 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3542 dnl but LIBS often has misplaced -L options.
3543 AC_DEFUN([CF_RPATH_HACK_2],
3545 CF_VERBOSE(...checking $1 [$]$1)
3548 for cf_rpath_src in [$]$1
3550 case "$cf_rpath_src" in
3553 # check if this refers to a directory which we will ignore
3555 if test -n "$cf_rpath_list"
3557 for cf_rpath_item in $cf_rpath_list
3559 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3567 if test "$cf_rpath_skip" = no
3569 # transform the option
3570 if test "$LD_RPATH_OPT" = "-R " ; then
3571 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3573 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3576 # if we have not already added this, add it now
3577 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3578 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3580 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3581 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3586 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3590 CF_VERBOSE(...checked $1 [$]$1)
3591 AC_SUBST(EXTRA_LDFLAGS)
3593 dnl ---------------------------------------------------------------------------
3594 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3595 dnl ------------------
3596 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3597 dnl and libraries which do not update those variables.
3599 dnl $1 = name of current macro
3600 define([CF_SAVE_XTRA_FLAGS],
3602 cf_save_LIBS_$1="$LIBS"
3603 cf_save_CFLAGS_$1="$CFLAGS"
3604 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3605 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3606 for cf_X_CFLAGS in $X_CFLAGS
3608 case "x$cf_X_CFLAGS" in
3610 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3613 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3618 dnl ---------------------------------------------------------------------------
3619 dnl CF_SIGWINCH version: 6 updated: 2021/01/01 13:31:04
3621 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3622 dnl programs need this test).
3624 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3625 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3626 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3627 dnl break that part of the interface as well.
3628 AC_DEFUN([CF_SIGWINCH],
3630 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3632 #include <sys/types.h>
3633 #include <sys/signal.h>
3634 ],[int x = SIGWINCH; (void)x],
3635 [cf_cv_define_sigwinch=yes],
3637 #undef _XOPEN_SOURCE
3638 #undef _POSIX_SOURCE
3639 #undef _POSIX_C_SOURCE
3640 #include <sys/types.h>
3641 #include <sys/signal.h>
3642 ],[int x = SIGWINCH; (void)x],
3643 [cf_cv_define_sigwinch=maybe],
3644 [cf_cv_define_sigwinch=no])
3648 if test "$cf_cv_define_sigwinch" = maybe ; then
3649 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3650 cf_cv_fixup_sigwinch=unknown
3652 while test "$cf_sigwinch" != 1
3655 #undef _XOPEN_SOURCE
3656 #undef _POSIX_SOURCE
3657 #undef _POSIX_C_SOURCE
3658 #include <sys/types.h>
3659 #include <sys/signal.h>
3661 #if SIGWINCH != $cf_sigwinch
3664 int x = SIGWINCH; (void)x],
3665 [cf_cv_fixup_sigwinch=$cf_sigwinch
3668 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3672 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3673 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3677 dnl ---------------------------------------------------------------------------
3678 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3680 dnl signal handler, but there are some gcc dependencies in that recommendation.
3682 AC_DEFUN([CF_SIG_ATOMIC_T],
3684 AC_MSG_CHECKING(for signal global datatype)
3685 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3687 "volatile sig_atomic_t" \
3692 #include <sys/types.h>
3698 static void handler(int sig)
3703 [signal(SIGINT, handler);
3705 [cf_cv_sig_atomic_t=$cf_type],
3706 [cf_cv_sig_atomic_t=no])
3707 test "$cf_cv_sig_atomic_t" != no && break
3710 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3711 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3713 dnl ---------------------------------------------------------------------------
3714 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3716 dnl Construct a search-list for a nonstandard header/lib-file
3717 dnl $1 = the variable to return as result
3718 dnl $2 = the package name
3719 dnl $3 = the subdirectory, e.g., bin, include or lib
3720 AC_DEFUN([CF_SUBDIR_PATH],
3724 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3726 for cf_subdir_prefix in \
3734 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3737 dnl ---------------------------------------------------------------------------
3738 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3739 dnl ------------------
3740 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3741 dnl older SCO configurations.
3742 AC_DEFUN([CF_SYS_TIME_SELECT],
3744 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3745 AC_CACHE_VAL(cf_cv_sys_time_select,[
3747 #include <sys/types.h>
3748 #ifdef HAVE_SYS_TIME_H
3749 #include <sys/time.h>
3751 #ifdef HAVE_SYS_SELECT_H
3752 #include <sys/select.h>
3754 ],[],[cf_cv_sys_time_select=yes],
3755 [cf_cv_sys_time_select=no])
3757 AC_MSG_RESULT($cf_cv_sys_time_select)
3758 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3760 dnl ---------------------------------------------------------------------------
3761 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3763 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3764 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3765 dnl but some packagers change this, breaking various applications.
3766 AC_DEFUN([CF_TERM_HEADER],[
3767 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3768 case "${cf_cv_ncurses_header}" in
3769 (*/ncurses.h|*/ncursesw.h)
3770 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3773 cf_term_header=term.h
3777 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3779 AC_TRY_COMPILE([#include <stdio.h>
3780 #include <${cf_cv_ncurses_header:-curses.h}>
3782 ],[int x = auto_left_margin; (void)x],[
3783 cf_cv_term_header="$cf_test"],[
3784 cf_cv_term_header=unknown
3786 test "$cf_cv_term_header" != unknown && break
3790 # Set definitions to allow ifdef'ing to accommodate subdirectories
3792 case "$cf_cv_term_header" in
3794 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3798 case "$cf_cv_term_header" in
3800 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3803 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3807 dnl ---------------------------------------------------------------------------
3808 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3810 dnl Define a top_builddir symbol, for applications that need an absolute path.
3811 AC_DEFUN([CF_TOP_BUILDDIR],
3813 top_builddir=ifelse($1,,`pwd`,$1)
3814 AC_SUBST(top_builddir)
3816 dnl ---------------------------------------------------------------------------
3817 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3819 dnl Check for type of function-pointer passed to tputs. Some old
3820 dnl implementations used functions that had different prototypes, making it
3821 dnl hard to compile portable programs using tputs.
3822 AC_DEFUN([CF_TPUTS_PROTO],[
3823 CF_CURSES_FUNCS(tputs)
3824 if test "x$cf_cv_func_tputs" = xyes
3827 for cf_arg in int char
3829 for cf_ret in int void
3831 if test "$cf_ret" = void
3833 cf_return="/* nothing */"
3835 cf_return="return value"
3838 #include <${cf_cv_ncurses_header:-curses.h}>
3839 #include <$cf_cv_term_header>
3841 static $cf_ret outc($cf_arg value) { $cf_return; }
3843 tputs("hello", 0, outc);
3844 ${cf_cv_main_return:-return}(0);
3846 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3847 cat >>confdefs.h <<EOF
3848 #define TPUTS_ARG $cf_arg
3849 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3850 #define TPUTS_RETURN(value) $cf_return
3856 test "$cf_done" = yes && break
3860 dnl ---------------------------------------------------------------------------
3861 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3863 dnl Trim extra base X libraries added as a workaround for inconsistent library
3864 dnl dependencies returned by "new" pkg-config files.
3865 AC_DEFUN([CF_TRIM_X_LIBS],[
3866 for cf_trim_lib in Xmu Xt X11
3869 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3870 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3871 CF_VERBOSE(..trimmed $LIBS)
3876 dnl ---------------------------------------------------------------------------
3877 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3878 dnl -----------------
3879 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3880 dnl available in that form.
3882 dnl $1 = package name, which may be a shell variable
3883 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3884 dnl $3 = logic to use if pkg-config does not have the package
3885 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3886 AC_REQUIRE([CF_PKG_CONFIG])
3888 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3889 CF_VERBOSE(found package $1)
3890 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3891 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3892 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3893 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3894 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3895 CF_ADD_LIBS($cf_pkgconfig_libs)
3896 ifelse([$2],,:,[$2])
3900 ifelse([$3],,:,[$3])
3903 dnl ---------------------------------------------------------------------------
3904 dnl CF_TRY_XOPEN_SOURCE version: 3 updated: 2021/08/28 15:20:37
3905 dnl -------------------
3906 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3907 dnl can define it successfully.
3908 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3909 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3913 #include <sys/types.h>
3915 #ifndef _XOPEN_SOURCE
3918 [cf_cv_xopen_source=no],
3919 [cf_save="$CPPFLAGS"
3920 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3924 #include <sys/types.h>
3926 #ifdef _XOPEN_SOURCE
3929 [cf_cv_xopen_source=no],
3930 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3935 if test "$cf_cv_xopen_source" != no ; then
3936 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3937 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3938 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3939 CF_APPEND_CFLAGS($cf_temp_xopen_source)
3942 dnl ---------------------------------------------------------------------------
3943 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3945 dnl Make an uppercase version of a variable
3946 dnl $1=uppercase($2)
3947 AC_DEFUN([CF_UPPER],
3949 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3951 dnl ---------------------------------------------------------------------------
3952 dnl CF_UTF8_LIB version: 9 updated: 2021/05/19 19:35:25
3954 dnl Check for multibyte support, and if not found, utf8 compatibility library
3955 AC_DEFUN([CF_UTF8_LIB],
3957 AC_HAVE_HEADERS(wchar.h)
3958 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3959 cf_save_LIBS="$LIBS"
3967 [cf_cv_utf8_lib=yes],
3969 #include <libutf8.h>],[putwc(0,0);],utf8,
3970 [cf_cv_utf8_lib=add-on],
3971 [cf_cv_utf8_lib=no])
3974 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3976 if test "$cf_cv_utf8_lib" = "add-on" ; then
3977 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3978 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3979 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3980 CF_ADD_LIBS($cf_cv_library_file_utf8)
3983 dnl ---------------------------------------------------------------------------
3984 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3986 dnl Use AC_VERBOSE w/o the warnings
3987 AC_DEFUN([CF_VERBOSE],
3988 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3991 dnl ---------------------------------------------------------------------------
3992 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
3994 dnl Check if type wide-character type $1 is declared, and if so, which header
3995 dnl file is needed. The second parameter is used to set a shell variable when
3996 dnl the type is not found. The first parameter sets a shell variable for the
3998 AC_DEFUN([CF_WCHAR_TYPE],
4000 # This is needed on Tru64 5.0 to declare $1
4001 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
4006 #ifdef HAVE_LIBUTF8_H
4007 #include <libutf8.h>
4016 #ifdef HAVE_LIBUTF8_H
4017 #include <libutf8.h>
4021 [cf_cv_$1=unknown])])])
4023 if test "$cf_cv_$1" = yes ; then
4024 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
4029 # if we do not find $1 in either place, use substitution to provide a fallback.
4030 if test "$cf_cv_$1" = unknown ; then
4035 # if we find $1 in either place, use substitution to provide a fallback.
4036 if test "$cf_cv_$1" != unknown ; then
4041 dnl ---------------------------------------------------------------------------
4042 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4043 dnl ------------------
4044 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4046 AC_DEFUN([CF_WITH_CURSES_DIR],[
4048 AC_MSG_CHECKING(for specific curses-directory)
4049 AC_ARG_WITH(curses-dir,
4050 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4051 [cf_cv_curses_dir=$withval],
4052 [cf_cv_curses_dir=no])
4053 AC_MSG_RESULT($cf_cv_curses_dir)
4055 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4057 CF_PATH_SYNTAX(withval)
4058 if test -d "$cf_cv_curses_dir"
4060 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4061 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4065 dnl ---------------------------------------------------------------------------
4066 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
4067 dnl ----------------
4068 dnl Configure-option for dbmalloc. The optional parameter is used to override
4069 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4070 AC_DEFUN([CF_WITH_DBMALLOC],[
4071 CF_NO_LEAKS_OPTION(dbmalloc,
4072 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
4075 if test "$with_dbmalloc" = yes ; then
4076 AC_CHECK_HEADER(dbmalloc.h,
4077 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
4080 dnl ---------------------------------------------------------------------------
4081 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
4083 dnl Configure-option for dmalloc. The optional parameter is used to override
4084 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4085 AC_DEFUN([CF_WITH_DMALLOC],[
4086 CF_NO_LEAKS_OPTION(dmalloc,
4087 [ --with-dmalloc test: use Gray Watson's dmalloc library],
4090 if test "$with_dmalloc" = yes ; then
4091 AC_CHECK_HEADER(dmalloc.h,
4092 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
4095 dnl ---------------------------------------------------------------------------
4096 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
4097 dnl --------------------
4098 dnl Allow for overriding the basename of a library, i.e., the part to which
4099 dnl prefixes/suffixes are attached.
4101 dnl $1 = variable to set
4102 dnl $2 = option name
4103 dnl $3 = default basename for library, if omitted use $2
4104 AC_DEFUN([CF_WITH_LIB_BASENAME],
4106 AC_MSG_CHECKING(for desired basename for $2 library)
4107 AC_ARG_WITH($2-libname,
4108 [ --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
4109 [with_lib_basename=$withval],
4110 [with_lib_basename=ifelse($3,,$2,$3)])
4111 $1="$with_lib_basename"
4115 $1=ifelse($3,,$2,$3)
4121 AC_MSG_RESULT([$]$1)
4124 dnl ---------------------------------------------------------------------------
4125 dnl CF_WITH_NCURSES_ETC version: 5 updated: 2016/02/20 19:23:20
4126 dnl -------------------
4127 dnl Use this macro for programs which use any variant of "curses", e.g.,
4128 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
4129 dnl library (such as slang) should use a "--with-screen=XXX" option.
4131 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
4132 dnl of the macros inside this one - before this macro.
4133 define([CF_WITH_NCURSES_ETC],[
4138 AC_MSG_CHECKING(for specified curses library type)
4140 [ --with-screen=XXX use specified curses-libraries],
4141 [cf_cv_screen=$withval],[
4143 AC_ARG_WITH(ncursesw,
4144 [ --with-ncursesw use wide ncurses-libraries],
4145 [cf_cv_screen=ncursesw],[
4147 AC_ARG_WITH(ncurses,
4148 [ --with-ncurses use ncurses-libraries],
4149 [cf_cv_screen=ncurses],[
4151 AC_ARG_WITH(pdcurses,
4152 [ --with-pdcurses compile/link with pdcurses X11 library],
4153 [cf_cv_screen=pdcurses],[
4155 AC_ARG_WITH(curses-colr,
4156 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
4157 [cf_cv_screen=curses_colr],[
4159 AC_ARG_WITH(curses-5lib,
4160 [ --with-curses-5lib compile/link with SunOS 5lib curses],
4161 [cf_cv_screen=curses_5lib])])])])])])
4163 AC_MSG_RESULT($cf_cv_screen)
4165 case $cf_cv_screen in
4171 CF_NCURSES_CONFIG($cf_cv_screen)
4174 CF_NCURSES_CONFIG($cf_cv_screen)
4180 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4184 CF_NCURSES_PTHREADS($cf_cv_screen)
4187 dnl ---------------------------------------------------------------------------
4188 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4189 dnl -----------------------
4190 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4191 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4192 dnl script to search for the X11/Xt header files to declare (or not) the
4193 dnl symbol needed to enable "const" in those header files. If that configure
4194 dnl option is not used, then those checks are unnecessary.
4195 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4196 AC_PROVIDE([AC_PATH_XTRA])
4197 AC_PROVIDE([AC_PATH_X])
4198 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4204 dnl ---------------------------------------------------------------------------
4205 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4206 dnl ----------------
4207 AC_DEFUN([CF_WITH_VALGRIND],[
4208 CF_NO_LEAKS_OPTION(valgrind,
4209 [ --with-valgrind test: use valgrind],
4212 dnl ---------------------------------------------------------------------------
4213 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
4215 dnl Handle configure option "--with-x11-rgb", setting these shell
4218 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4219 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4221 dnl Most Linux's use this:
4222 dnl /usr/share/X11/rgb.txt
4223 dnl Debian uses this:
4224 dnl /etc/X11/rgb.txt
4225 dnl DragonFlyBSD ports uses this:
4226 dnl /usr/pkg/lib/X11/rgb.txt
4227 dnl FreeBSD ports use these:
4228 dnl /usr/local/lib/X11/rgb.txt
4229 dnl /usr/local/share/X11/rgb.txt
4230 dnl Mandriva has these:
4231 dnl /usr/lib/X11/rgb.txt
4232 dnl /usr/lib64/X11/rgb.txt
4233 dnl NetBSD has these
4234 dnl /usr/X11R7/lib/X11/rgb.txt
4235 dnl OpenSolaris uses
4237 dnl /usr/X11/etc/X11/rgb.txt
4238 dnl /usr/X11/share/X11/rgb.txt
4239 dnl /usr/X11/lib/X11/rgb.txt
4241 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4242 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4244 dnl /usr/X11/etc/X11/rgb.txt
4245 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4246 dnl /usr/X11/lib/amd64/X11/rgb.txt
4247 dnl Solaris10 uses (in this order):
4248 dnl /usr/openwin/lib/X11/rgb.txt
4249 dnl /usr/X11/lib/X11/rgb.txt
4250 AC_DEFUN([CF_WITH_X11_RGB],[
4251 AC_MSG_CHECKING(for X11 rgb file)
4252 AC_ARG_WITH(x11-rgb,
4253 [ --with-x11-rgb=FILE file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
4254 [RGB_PATH=$withval],
4257 if test "x[$]RGB_PATH" = xauto
4259 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4261 /opt/local/share/X11/rgb.txt \
4262 /opt/X11/share/X11/rgb.txt \
4263 /usr/share/X11/rgb.txt \
4264 /usr/X11/share/X11/rgb.txt \
4265 /usr/X11/lib/X11/rgb.txt \
4266 /usr/lib/X11/rgb.txt \
4268 /usr/pkg/lib/X11/rgb.txt \
4269 /usr/X11R7/lib/X11/rgb.txt \
4270 /usr/X11R6/lib/X11/rgb.txt \
4271 /usr/X11R5/lib/X11/rgb.txt \
4272 /usr/X11R4/lib/X11/rgb.txt \
4273 /usr/local/lib/X11/rgb.txt \
4274 /usr/local/share/X11/rgb.txt \
4275 /usr/lib64/X11/rgb.txt
4277 if test -f "$cf_path" ; then
4284 CF_PATH_SYNTAX(cf_path)
4287 AC_MSG_RESULT($RGB_PATH)
4289 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4292 if test "$RGB_PATH" = no
4296 AC_SUBST(no_x11_rgb)
4298 dnl ---------------------------------------------------------------------------
4299 dnl CF_XOPEN_CURSES version: 17 updated: 2021/07/10 12:22:27
4301 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4302 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4304 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4305 dnl as getbegy(). The latter is better design, but the former is standard.
4306 AC_DEFUN([CF_XOPEN_CURSES],
4308 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4309 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4310 cf_cv_need_xopen_extension=unknown
4313 #include <${cf_cv_ncurses_header:-curses.h}>],[
4314 #if defined(NCURSES_VERSION_PATCH)
4315 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4319 #ifdef NCURSES_WIDECHAR
4320 make an error /* prefer to fall-through on the second checks */
4323 int check2 = curs_set((int)sizeof(check));
4324 long x = winnstr(stdscr, "", 0);
4327 getbegyx(stdscr, y1, x1);
4332 [cf_cv_need_xopen_extension=none],
4334 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4337 #define $cf_try_xopen_extension 1
4339 #include <${cf_cv_ncurses_header:-curses.h}>],[
4341 int check2 = curs_set((int)sizeof(check));
4342 long x = winnstr(stdscr, "", 0);
4344 getbegyx(stdscr, y1, x1);
4350 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4355 case "$cf_cv_need_xopen_extension" in
4357 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4362 dnl ---------------------------------------------------------------------------
4363 dnl CF_XOPEN_SOURCE version: 59 updated: 2021/08/28 15:20:37
4365 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4366 dnl or adapt to the vendor's definitions to get equivalent functionality,
4367 dnl without losing the common non-POSIX features.
4370 dnl $1 is the nominal value for _XOPEN_SOURCE
4371 dnl $2 is the nominal value for _POSIX_C_SOURCE
4372 AC_DEFUN([CF_XOPEN_SOURCE],[
4373 AC_REQUIRE([AC_CANONICAL_HOST])
4374 AC_REQUIRE([CF_POSIX_VISIBLE])
4376 if test "$cf_cv_posix_visible" = no; then
4378 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4379 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4384 cf_xopen_source="-D_ALL_SOURCE"
4390 cf_xopen_source="-D_APPLE_C_SOURCE"
4393 cf_xopen_source="-D_DARWIN_C_SOURCE"
4396 (freebsd*|dragonfly*|midnightbsd*)
4397 # 5.x headers associate
4398 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4399 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4400 cf_POSIX_C_SOURCE=200112L
4402 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4405 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4408 cf_xopen_source="-D_HPUX_SOURCE"
4411 cf_xopen_source="-D_SGI_SOURCE"
4414 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4415 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4418 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4421 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4423 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4426 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4429 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4430 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4431 # Abusing the conformance level is a workaround.
4432 AC_MSG_WARN(this system does not provide usable locale support)
4433 cf_xopen_source="-D_BSD_SOURCE"
4437 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4438 cf_xopen_source="-D_BSD_SOURCE"
4442 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4445 cf_xopen_source="-D_OSF_SOURCE"
4448 cf_xopen_source="-D_QNX_SOURCE"
4451 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4454 cf_xopen_source="-D__EXTENSIONS__"
4455 cf_cv_xopen_source=broken
4457 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4463 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4467 if test -n "$cf_xopen_source" ; then
4468 CF_APPEND_CFLAGS($cf_xopen_source,true)
4471 dnl In anything but the default case, we may have system-specific setting
4472 dnl which is still not guaranteed to provide all of the entrypoints that
4473 dnl _XOPEN_SOURCE would yield.
4474 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4475 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4476 AC_TRY_COMPILE([#include <stdlib.h>],[
4477 #ifndef _XOPEN_SOURCE
4480 [cf_XOPEN_SOURCE_set=yes],
4481 [cf_XOPEN_SOURCE_set=no])
4482 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4483 if test "$cf_XOPEN_SOURCE_set" = yes
4485 AC_TRY_COMPILE([#include <stdlib.h>],[
4486 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4489 [cf_XOPEN_SOURCE_set_ok=yes],
4490 [cf_XOPEN_SOURCE_set_ok=no])
4491 if test "$cf_XOPEN_SOURCE_set_ok" = no
4493 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4499 fi # cf_cv_posix_visible
4501 dnl ---------------------------------------------------------------------------
4502 dnl CF_X_ATHENA version: 24 updated: 2020/03/10 18:53:47
4504 dnl Check for Xaw (Athena) libraries
4506 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4507 AC_DEFUN([CF_X_ATHENA],
4509 cf_x_athena=${cf_x_athena:-Xaw}
4511 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4514 [ --with-Xaw3d link with Xaw 3d library])
4515 if test "$withval" = yes ; then
4522 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4524 AC_ARG_WITH(Xaw3dxft,
4525 [ --with-Xaw3dxft link with Xaw 3d xft library])
4526 if test "$withval" = yes ; then
4527 cf_x_athena=Xaw3dxft
4533 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4536 [ --with-neXtaw link with neXT Athena library])
4537 if test "$withval" = yes ; then
4544 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4546 AC_ARG_WITH(XawPlus,
4547 [ --with-XawPlus link with Athena-Plus library])
4548 if test "$withval" = yes ; then
4557 if test "$PKG_CONFIG" != none ; then
4559 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4560 for cf_athena_pkg in \
4563 ${cf_x_athena}-devel \
4565 lib${cf_x_athena}-devel
4567 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4568 cf_x_athena_lib="$cf_pkgconfig_libs"
4569 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4570 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4574 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4576 #include <X11/Xmu/CharSet.h>
4578 int check = XmuCompareISOLatin1("big", "small");
4580 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4582 if test "$cf_cv_xaw_compat" = no
4584 # workaround for broken ".pc" files...
4585 case "$cf_x_athena_lib" in
4589 CF_VERBOSE(work around broken package)
4591 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4592 CF_TRY_PKG_CONFIG(xmu,[
4594 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4596 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4607 if test -z "$cf_x_athena_lib" ; then
4610 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4611 CF_X_ATHENA_LIBS($cf_x_athena)
4614 dnl ---------------------------------------------------------------------------
4615 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4616 dnl --------------------
4617 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4618 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4619 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4621 AC_REQUIRE([AC_PATH_XTRA])
4622 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4625 for cf_path in default \
4626 /usr/contrib/X11R6 \
4627 /usr/contrib/X11R5 \
4631 if test -z "$cf_x_athena_inc" ; then
4632 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4633 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4634 if test "$cf_path" != default ; then
4635 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4636 AC_MSG_CHECKING(for $cf_test in $cf_path)
4638 AC_MSG_CHECKING(for $cf_test)
4641 #include <X11/Intrinsic.h>
4642 #include <$cf_test>],[],
4645 AC_MSG_RESULT($cf_result)
4646 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4647 if test "$cf_result" = yes ; then
4648 test "$cf_path" = default && cf_x_athena_inc=default
4649 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4655 if test -z "$cf_x_athena_inc" ; then
4656 AC_MSG_WARN([Unable to find Athena header files])
4657 elif test "$cf_x_athena_inc" != default ; then
4658 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4661 dnl ---------------------------------------------------------------------------
4662 dnl CF_X_ATHENA_LIBS version: 13 updated: 2020/01/11 18:16:10
4663 dnl ----------------
4664 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4665 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4666 AC_DEFUN([CF_X_ATHENA_LIBS],
4667 [AC_REQUIRE([CF_X_TOOLKIT])
4668 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4671 for cf_path in default \
4672 /usr/contrib/X11R6 \
4673 /usr/contrib/X11R5 \
4678 ${cf_x_athena_root} \
4679 ${cf_x_athena_root}7 \
4680 ${cf_x_athena_root}6
4684 "-l$cf_lib -lXpm -lXmu" \
4685 "-l${cf_lib}_s -lXmu_s"
4687 test -n "$cf_x_athena_lib" && break
4689 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4690 cf_test=XawSimpleMenuAddGlobalActions
4691 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4692 CF_ADD_LIBS($cf_libs)
4693 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4695 #include <X11/Intrinsic.h>
4696 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4698 $cf_test((XtAppContext) 0)],
4701 AC_MSG_RESULT($cf_result)
4702 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4704 if test "$cf_result" = yes ; then
4705 cf_x_athena_lib="$cf_libs"
4709 test -n "$cf_x_athena_lib" && break
4713 if test -z "$cf_x_athena_lib" ; then
4715 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4718 CF_ADD_LIBS($cf_x_athena_lib)
4719 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4720 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4722 dnl ---------------------------------------------------------------------------
4723 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4725 AC_DEFUN([CF_X_EXT],[
4726 CF_TRY_PKG_CONFIG(Xext,,[
4727 AC_CHECK_LIB(Xext,XextCreateExtension,
4728 [CF_ADD_LIB(Xext)])])
4730 dnl ---------------------------------------------------------------------------
4731 dnl CF_X_TOOLKIT version: 26 updated: 2021/01/02 09:31:20
4733 dnl Check for X Toolkit libraries
4734 AC_DEFUN([CF_X_TOOLKIT],
4736 AC_REQUIRE([AC_PATH_XTRA])
4737 AC_REQUIRE([CF_CHECK_CACHE])
4739 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4740 # in some cases has installed dummy files in the former, other cases replaced
4741 # it with a link to the new location). This complicates the configure script.
4742 # Check for that pitfall, and recover using pkg-config
4744 # If none of these are set, the configuration is almost certainly broken.
4745 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4747 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4748 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4749 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4750 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4752 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4757 CF_TRY_PKG_CONFIG(xt,[
4763 # we have an "xt" package, but it may omit Xt's dependency on X11
4764 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4766 #include <X11/Xlib.h>
4768 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4769 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4770 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4771 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4772 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4773 if test "$cf_cv_xt_x11_compat" = no
4775 CF_VERBOSE(work around broken X11 dependency)
4776 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4777 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4782 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4784 #include <X11/Shell.h>
4785 ],[int num = IceConnectionNumber(0); (void) num
4786 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4788 if test "$cf_cv_xt_ice_compat" = no
4790 # workaround for broken ".pc" files used for X Toolkit.
4791 case "x$X_PRE_LIBS" in
4797 CF_VERBOSE(work around broken ICE dependency)
4798 CF_TRY_PKG_CONFIG(ice,
4799 [CF_TRY_PKG_CONFIG(sm)],
4800 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4810 LDFLAGS="$X_LIBS $LDFLAGS"
4811 CF_CHECK_CFLAGS($X_CFLAGS)
4813 AC_CHECK_FUNC(XOpenDisplay,,[
4814 AC_CHECK_LIB(X11,XOpenDisplay,
4815 [CF_ADD_LIB(X11)])])
4817 AC_CHECK_FUNC(XtAppInitialize,,[
4818 AC_CHECK_LIB(Xt, XtAppInitialize,
4819 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4821 LIBS="-lXt $LIBS"])])
4824 if test "$cf_have_X_LIBS" = no ; then
4826 [Unable to successfully link X Toolkit library (-lXt) with
4827 test program. You will have to check and add the proper libraries by hand
4831 dnl ---------------------------------------------------------------------------
4832 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4834 dnl Attempt to make a copy of a curses data item. This is needed in the
4835 dnl check-data configure tests when using ncurses, because the symbol may be
4836 dnl actually a function return-value. That could happen if the linker is
4837 dnl broken (does not resolve data-only references), or if ncurses is configured
4838 dnl to support re-entrant code.
4841 define([CF__CURSES_DATA],[
4842 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4843 const void *$1 = (const void *)($2);
4845 const void *$1 = &($2);
4847 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4849 dnl ---------------------------------------------------------------------------
4850 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4852 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4853 dnl are both available.
4854 define([CF__CURSES_HEAD],[
4856 #include <xcurses.h>
4857 char * XCursesProgramName = "test";
4859 #include <${cf_cv_ncurses_header:-curses.h}>
4860 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4861 #include <ncursesw/term.h>
4862 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4863 #include <ncurses/term.h>
4864 #elif defined(HAVE_TERM_H)