1 dnl***************************************************************************
2 dnl Copyright 2018-2020,2021 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 1.201 2021/09/05 21:29:34 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: 3 updated: 2020/12/31 18:40:20
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
1633 CF_VERBOSE(repairing $1: [$]$1)
1635 for cf_temp_scan in [$]$1
1637 case "x$cf_temp_scan" in
1639 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1642 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1647 CF_VERBOSE(... fixed [$]$1)
1648 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1652 AC_SUBST(EXTRA_CFLAGS)
1654 dnl ---------------------------------------------------------------------------
1655 dnl CF_FUNC_CURSES_VERSION version: 8 updated: 2021/01/02 09:31:20
1656 dnl ----------------------
1657 dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
1658 dnl It's a character string "SVR4", not documented.
1659 AC_DEFUN([CF_FUNC_CURSES_VERSION],
1661 AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
1663 #include <${cf_cv_ncurses_header:-curses.h}>
1667 sprintf(temp, "%s\\n", curses_version());
1668 ${cf_cv_main_return:-return}(0);
1670 ,[cf_cv_func_curses_version=yes]
1671 ,[cf_cv_func_curses_version=no]
1672 ,[cf_cv_func_curses_version=unknown])
1674 test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION,1,[Define to 1 if we have curses_version function])
1676 dnl ---------------------------------------------------------------------------
1677 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
1679 dnl Check for openpty() function, along with <pty.h> header. It may need the
1680 dnl "util" library as well.
1681 AC_DEFUN([CF_FUNC_OPENPTY],
1683 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1684 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1685 cf_save_LIBS="$LIBS"
1686 test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
1687 for cf_header in pty.h libutil.h util.h
1690 #include <$cf_header>
1692 int x = openpty((int *)0, (int *)0, (char *)0,
1693 (struct termios *)0, (struct winsize *)0);
1695 cf_cv_func_openpty=$cf_header
1698 cf_cv_func_openpty=no
1701 LIBS="$cf_save_LIBS"
1704 dnl ---------------------------------------------------------------------------
1705 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1706 dnl -----------------
1707 dnl Test for availability of useful gcc __attribute__ directives to quiet
1708 dnl compiler warnings. Though useful, not all are supported -- and contrary
1709 dnl to documentation, unrecognized directives cause older compilers to barf.
1710 AC_DEFUN([CF_GCC_ATTRIBUTES],
1711 [AC_REQUIRE([AC_PROG_FGREP])dnl
1712 AC_REQUIRE([CF_C11_NORETURN])dnl
1714 if test "$GCC" = yes || test "$GXX" = yes
1716 cat > conftest.i <<EOF
1718 #define GCC_PRINTF 0
1723 #ifndef GCC_NORETURN
1724 #define GCC_NORETURN /* nothing */
1727 #define GCC_UNUSED /* nothing */
1730 if test "$GCC" = yes
1732 AC_CHECKING([for $CC __attribute__ directives])
1733 cat > "conftest.$ac_ext" <<EOF
1734 #line __oline__ "${as_me:-configure}"
1735 #include "confdefs.h"
1736 #include "conftest.h"
1737 #include "conftest.i"
1739 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1741 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1744 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1746 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1748 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1749 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1750 extern GCC_NORETURN void foo(void);
1751 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1753 cf_printf_attribute=no
1754 cf_scanf_attribute=no
1755 for cf_attribute in scanf printf unused noreturn
1757 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1758 cf_directive="__attribute__(($cf_attribute))"
1759 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1761 case "$cf_attribute" in
1763 cf_printf_attribute=yes
1764 cat >conftest.h <<EOF
1765 #define GCC_$cf_ATTRIBUTE 1
1769 cf_scanf_attribute=yes
1770 cat >conftest.h <<EOF
1771 #define GCC_$cf_ATTRIBUTE 1
1775 cat >conftest.h <<EOF
1776 #define GCC_$cf_ATTRIBUTE $cf_directive
1781 if AC_TRY_EVAL(ac_compile); then
1782 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1783 cat conftest.h >>confdefs.h
1784 case "$cf_attribute" in
1786 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1789 cf_value='/* nothing */'
1790 if test "$cf_printf_attribute" != no ; then
1791 cf_value='__attribute__((format(printf,fmt,var)))'
1792 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1794 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1797 cf_value='/* nothing */'
1798 if test "$cf_scanf_attribute" != no ; then
1799 cf_value='__attribute__((format(scanf,fmt,var)))'
1800 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1802 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1805 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1811 ${FGREP-fgrep} define conftest.i >>confdefs.h
1816 dnl ---------------------------------------------------------------------------
1817 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1819 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1820 dnl compatible), attempt to determine if icc/clang is actually used.
1821 AC_DEFUN([CF_GCC_VERSION],[
1822 AC_REQUIRE([AC_PROG_CC])
1824 if test "$GCC" = yes ; then
1825 AC_MSG_CHECKING(version of $CC)
1826 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1827 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1828 AC_MSG_RESULT($GCC_VERSION)
1830 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1831 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1833 dnl ---------------------------------------------------------------------------
1834 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1836 dnl Check if the compiler supports useful warning options. There's a few that
1837 dnl we don't use, simply because they're too noisy:
1839 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1840 dnl -Winline (usually not worthwhile)
1841 dnl -Wredundant-decls (system headers make this too noisy)
1842 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1843 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1844 dnl is enabled for ncurses using "--enable-const".
1848 dnl $1 is an optional list of gcc warning flags that a particular
1849 dnl application might want to use, e.g., "no-unused" for
1852 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1854 AC_DEFUN([CF_GCC_WARNINGS],
1856 AC_REQUIRE([CF_GCC_VERSION])
1857 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1858 cat > "conftest.$ac_ext" <<EOF
1859 #line __oline__ "${as_me:-configure}"
1860 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1862 if test "$INTEL_COMPILER" = yes
1864 # The "-wdXXX" options suppress warnings:
1865 # remark #1419: external declaration in primary source file
1866 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1867 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1868 # remark #193: zero used for undefined preprocessing identifier
1869 # remark #593: variable "curs_sb_left_arrow" was set but never used
1870 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1871 # remark #869: parameter "tw" was never referenced
1872 # remark #981: operands are evaluated in unspecified order
1873 # warning #279: controlling expression is constant
1875 AC_CHECKING([for $CC warning options])
1876 cf_save_CFLAGS="$CFLAGS"
1877 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1889 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1890 if AC_TRY_EVAL(ac_compile); then
1891 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1892 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1895 CFLAGS="$cf_save_CFLAGS"
1896 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1898 AC_CHECKING([for $CC warning options])
1899 cf_save_CFLAGS="$CFLAGS"
1901 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1902 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1903 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1904 for cf_opt in W Wall \
1905 Wbad-function-cast \
1908 Wdeclaration-after-statement \
1911 Wmissing-declarations \
1912 Wmissing-prototypes \
1916 Wstrict-prototypes \
1917 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1919 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1920 if AC_TRY_EVAL(ac_compile); then
1921 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1924 case "$GCC_VERSION" in
1926 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1931 case "$GCC_VERSION" in
1933 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1938 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1941 CFLAGS="$cf_save_CFLAGS"
1945 AC_SUBST(EXTRA_CFLAGS)
1947 dnl ---------------------------------------------------------------------------
1948 dnl CF_GETOPT_HEADER version: 8 updated: 2021/06/19 19:16:16
1949 dnl ----------------
1950 dnl Check for getopt's variables which are commonly defined in stdlib.h,
1951 dnl unistd.h or (nonstandard) in getopt.h
1952 AC_DEFUN([CF_GETOPT_HEADER],
1954 AC_HAVE_HEADERS(unistd.h getopt.h)
1955 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
1956 cf_cv_getopt_header=none
1957 for cf_header in stdio.h stdlib.h unistd.h getopt.h
1960 #include <$cf_header>],
1961 [int x = optind; char *y = optarg; (void)x; (void)y],
1962 [cf_cv_getopt_header=$cf_header
1966 if test "$cf_cv_getopt_header" != none ; then
1967 AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
1969 if test "$cf_cv_getopt_header" = getopt.h ; then
1970 AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
1973 dnl ---------------------------------------------------------------------------
1974 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1976 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1977 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1978 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1979 dnl since it is interwoven with GNU extensions.
1981 dnl Well, yes we could work around it...
1984 dnl $1 is the nominal value for _XOPEN_SOURCE
1985 AC_DEFUN([CF_GNU_SOURCE],
1987 cf_gnu_xopen_source=ifelse($1,,500,$1)
1989 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1990 AC_TRY_COMPILE([#include <sys/types.h>],[
1991 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1993 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1996 # error not GNU C library
1998 [cf_cv_gnu_library=yes],
1999 [cf_cv_gnu_library=no])
2002 if test x$cf_cv_gnu_library = xyes; then
2004 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
2005 # was changed to help a little. newlib incorporated the change about 4
2007 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
2009 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2010 AC_TRY_COMPILE([#include <sys/types.h>],[
2011 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
2013 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
2016 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
2018 [cf_cv_gnu_library_219=yes],
2019 [cf_cv_gnu_library_219=no])
2023 if test "x$cf_cv_gnu_library_219" = xyes; then
2025 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
2026 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
2029 #include <sys/types.h>
2031 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2034 # error GNU C library is too old
2036 [cf_cv_gnu_dftsrc_219=yes],
2037 [cf_cv_gnu_dftsrc_219=no])
2039 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2041 cf_cv_gnu_dftsrc_219=maybe
2044 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2046 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2047 AC_TRY_COMPILE([#include <sys/types.h>],[
2048 #ifndef _XOPEN_SOURCE
2049 #error expected _XOPEN_SOURCE to be defined
2051 [cf_cv_gnu_source=no],
2052 [cf_save="$CPPFLAGS"
2053 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2054 AC_TRY_COMPILE([#include <sys/types.h>],[
2055 #ifdef _XOPEN_SOURCE
2056 #error expected _XOPEN_SOURCE to be undefined
2058 [cf_cv_gnu_source=no],
2059 [cf_cv_gnu_source=yes])
2064 if test "$cf_cv_gnu_source" = yes
2066 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2067 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2068 AC_TRY_COMPILE([#include <sys/types.h>],[
2069 #ifdef _DEFAULT_SOURCE
2070 #error expected _DEFAULT_SOURCE to be undefined
2072 [cf_cv_default_source=no],
2073 [cf_cv_default_source=yes])
2075 if test "$cf_cv_default_source" = yes
2077 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2084 dnl ---------------------------------------------------------------------------
2085 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2087 dnl Construct a search-list of directories for a nonstandard header-file
2090 dnl $1 = the variable to return as result
2091 dnl $2 = the package name
2092 AC_DEFUN([CF_HEADER_PATH],
2096 # collect the current set of include-directories from compiler flags
2097 cf_header_path_list=""
2098 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2099 for cf_header_path in $CPPFLAGS $CFLAGS
2101 case "$cf_header_path" in
2103 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2104 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2105 cf_header_path_list="$cf_header_path_list [$]$1"
2111 # add the variations for the package we are looking for
2112 CF_SUBDIR_PATH($1,$2,include)
2114 test "$includedir" != NONE && \
2115 test "$includedir" != "/usr/include" && \
2116 test -d "$includedir" && {
2117 test -d "$includedir" && $1="[$]$1 $includedir"
2118 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2121 test "$oldincludedir" != NONE && \
2122 test "$oldincludedir" != "/usr/include" && \
2123 test -d "$oldincludedir" && {
2124 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2125 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2128 $1="[$]$1 $cf_header_path_list"
2130 dnl ---------------------------------------------------------------------------
2131 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2133 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2134 AC_DEFUN([CF_HELP_MESSAGE],
2135 [CF_ACVERSION_CHECK(2.53,[],[
2136 AC_DIVERT_HELP($1)])dnl
2138 dnl ---------------------------------------------------------------------------
2139 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
2140 dnl -----------------
2141 dnl If we do not have a given script, look for it in the parent directory.
2142 AC_DEFUN([CF_INHERIT_SCRIPT],
2144 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
2146 dnl ---------------------------------------------------------------------------
2147 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2149 dnl prompt for/fill-in useful install-program options
2150 AC_DEFUN([CF_INSTALL_OPTS],
2156 dnl ---------------------------------------------------------------------------
2157 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2158 dnl ----------------
2159 dnl Almost all "install" programs default to the current user's ownership.
2160 dnl Almost - MINIX is an exception.
2161 AC_DEFUN([CF_INSTALL_OPT_O],
2163 AC_MSG_CHECKING(if install needs to be told about ownership)
2164 case `$ac_config_guess` in
2173 AC_MSG_RESULT($with_install_o)
2174 if test "x$with_install_o" = xyes
2176 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'`"
2181 AC_SUBST(INSTALL_OPT_O)
2183 dnl ---------------------------------------------------------------------------
2184 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2185 dnl ----------------
2186 dnl Some install-programs accept a "-p" option to preserve file modification
2187 dnl timestamps. That can be useful as an install option, as well as a way to
2188 dnl avoid the need for ranlib after copying a static archive.
2189 AC_DEFUN([CF_INSTALL_OPT_P],
2191 : "${INSTALL:=install}"
2192 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2197 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2199 if test -f conftest.out/conftest.in
2201 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2202 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2203 if test -s conftest.err
2218 dnl ---------------------------------------------------------------------------
2219 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2220 dnl ----------------
2221 dnl By default, we should strip executables which are installed, but leave the
2222 dnl ability to suppress that for unit-testing.
2223 AC_DEFUN([CF_INSTALL_OPT_S],
2225 AC_MSG_CHECKING(if you want to install stripped executables)
2226 CF_ARG_DISABLE(stripping,
2227 [ --disable-stripping do not strip (debug info) installed executables],
2228 [enable_stripping=no],
2229 [enable_stripping=yes])
2230 AC_MSG_RESULT($enable_stripping)
2232 if test "$enable_stripping" = yes
2238 AC_SUBST(INSTALL_OPT_S)
2240 dnl ---------------------------------------------------------------------------
2241 dnl CF_INTEL_COMPILER version: 8 updated: 2021/01/01 16:53:59
2242 dnl -----------------
2243 dnl Check if the given compiler is really the Intel compiler for Linux. It
2244 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2245 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2247 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2248 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2249 dnl the wrappers for gcc and g++ warnings.
2251 dnl $1 = GCC (default) or GXX
2252 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2253 dnl $3 = CFLAGS (default) or CXXFLAGS
2254 AC_DEFUN([CF_INTEL_COMPILER],[
2255 AC_REQUIRE([AC_CANONICAL_HOST])
2256 ifelse([$2],,INTEL_COMPILER,[$2])=no
2258 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2261 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2262 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2263 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2265 #ifdef __INTEL_COMPILER
2269 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2270 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2272 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2273 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2278 dnl ---------------------------------------------------------------------------
2279 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2281 dnl For the given system and compiler, find the compiler flags to pass to the
2282 dnl loader to use the "rpath" feature.
2283 AC_DEFUN([CF_LD_RPATH_OPT],
2285 AC_REQUIRE([CF_CHECK_CACHE])
2288 if test "x$cf_cv_enable_rpath" != xno
2290 AC_MSG_CHECKING(for an rpath option)
2291 case "$cf_cv_system_name" in
2293 if test "$GCC" = yes; then
2294 LD_RPATH_OPT="-Wl,-rpath,"
2296 LD_RPATH_OPT="-rpath "
2299 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2300 LD_RPATH_OPT="-Wl,-rpath,"
2302 (openbsd[[2-9]].*|mirbsd*)
2303 LD_RPATH_OPT="-Wl,-rpath,"
2306 LD_RPATH_OPT="-rpath "
2309 LD_RPATH_OPT="-Wl,-rpath,"
2312 LD_RPATH_OPT="-rpath "
2320 AC_MSG_RESULT($LD_RPATH_OPT)
2322 case "x$LD_RPATH_OPT" in
2324 AC_MSG_CHECKING(if we need a space after rpath option)
2325 cf_save_LIBS="$LIBS"
2326 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2327 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2328 LIBS="$cf_save_LIBS"
2329 AC_MSG_RESULT($cf_rpath_space)
2330 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2335 dnl ---------------------------------------------------------------------------
2336 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2338 dnl Construct a search-list of directories for a nonstandard library-file
2341 dnl $1 = the variable to return as result
2342 dnl $2 = the package name
2343 AC_DEFUN([CF_LIBRARY_PATH],
2346 cf_library_path_list=""
2347 if test -n "${LDFLAGS}${LIBS}" ; then
2348 for cf_library_path in $LDFLAGS $LIBS
2350 case "$cf_library_path" in
2352 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2353 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2354 cf_library_path_list="$cf_library_path_list [$]$1"
2360 CF_SUBDIR_PATH($1,$2,lib)
2362 $1="$cf_library_path_list [$]$1"
2364 dnl ---------------------------------------------------------------------------
2365 dnl CF_MAKE_PHONY version: 3 updated: 2021/01/08 16:08:21
2367 dnl Check if the make-program handles a ".PHONY" target, e.g,. a target which
2368 dnl acts as a placeholder.
2370 dnl The ".PHONY" feature was proposed in 2011 here
2371 dnl https://www.austingroupbugs.net/view.php?id=523
2372 dnl and is scheduled for release in P1003.1 Issue 8 (late 2022).
2374 dnl This is not supported by SVr4 make (or SunOS 4, 4.3SD, etc), but works with
2375 dnl a few others (i.e., GNU make and the non-POSIX "BSD" make):
2377 dnl + This is a GNU make feature (since April 1988, but in turn from binutils,
2378 dnl date unspecified).
2380 dnl + It was adopted in NetBSD make in June 1995.
2382 dnl + The other BSD make programs are derived from the NetBSD make (and for
2383 dnl that reason are not actually different "implementations").
2385 dnl + Some features of NetBSD make were actually adapted from pmake, which
2386 dnl began as a modified GNU make starting in 1993.
2388 dnl + Version 3.8 of the dmake program in January 1992 also implemented this
2389 dnl GNU make extension, but is less well known than the BSD make.
2390 AC_DEFUN([CF_MAKE_PHONY],[
2391 AC_CACHE_CHECK(for \".PHONY\" make-support, cf_cv_make_PHONY,[
2394 mkdir conftest || exit 1
2396 cat >makefile <<'CF_EOF'
2400 @echo "** making [$]@ [$](DATA)"
2402 @echo "** making [$]@ [$](DATA)"
2404 @echo "** making [$]@ [$](DATA)"
2405 echo [$](DATA) > [$]@
2407 @echo "** making [$]@ [$](DATA)"
2408 echo [$](DATA) > [$]@
2410 for cf_data in 1 2 3
2412 ${MAKE:-make} always DATA=$cf_data
2413 ${MAKE:-make} once DATA=$cf_data
2414 ${MAKE:-make} -t always once
2415 if test -f always ; then
2416 echo "no (case 1)" > ../conftest.tmp
2417 elif test ! -f always.out ; then
2418 echo "no (case 2)" > ../conftest.tmp
2419 elif test ! -f once.out ; then
2420 echo "no (case 3)" > ../conftest.tmp
2421 elif ! cmp -s always.out once.out ; then
2422 echo "no (case 4)" > ../conftest.tmp
2423 diff always.out once.out
2425 cf_check="`cat always.out`"
2426 if test "x$cf_check" != "x$cf_data" ; then
2427 echo "no (case 5)" > ../conftest.tmp
2429 echo yes > ../conftest.tmp
2437 cf_cv_make_PHONY="`cat conftest.tmp`"
2442 test "x$cf_cv_make_PHONY" = xyes && MAKE_PHONY=
2443 test "x$cf_cv_make_PHONY" != xyes && MAKE_NO_PHONY=
2444 AC_SUBST(MAKE_NO_PHONY)
2445 AC_SUBST(MAKE_PHONY)
2447 dnl ---------------------------------------------------------------------------
2448 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2450 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2451 dnl a monocase filesystem.
2452 AC_DEFUN([CF_MAKE_TAGS],[
2453 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2455 AC_CHECK_PROGS(CTAGS, exctags ctags)
2456 AC_CHECK_PROGS(ETAGS, exetags etags)
2458 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2460 if test "$cf_cv_mixedcase" = yes ; then
2461 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2466 if test "$MAKE_UPPER_TAGS" = yes ; then
2472 if test "$MAKE_LOWER_TAGS" = yes ; then
2481 AC_SUBST(MAKE_UPPER_TAGS)
2482 AC_SUBST(MAKE_LOWER_TAGS)
2484 dnl ---------------------------------------------------------------------------
2485 dnl CF_MATH_LIB version: 10 updated: 2020/12/31 18:40:20
2487 dnl Checks for libraries. At least one UNIX system, Apple Macintosh
2488 dnl Rhapsody 5.5, does not have -lm. We cannot use the simpler
2489 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
2490 AC_DEFUN([CF_MATH_LIB],
2492 AC_CACHE_CHECK(if -lm needed for math functions,
2499 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2500 [cf_cv_need_libm=no],
2501 [cf_cv_need_libm=yes])])
2502 if test "$cf_cv_need_libm" = yes
2509 dnl ---------------------------------------------------------------------------
2510 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2511 dnl ----------------------
2512 dnl Check if the file-system supports mixed-case filenames. If we're able to
2513 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2514 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2516 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2517 if test "$cross_compiling" = yes ; then
2518 case "$target_alias" in
2519 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2527 rm -f conftest CONFTEST
2529 if test -f CONFTEST ; then
2534 rm -f conftest CONFTEST
2537 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2539 dnl ---------------------------------------------------------------------------
2540 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2542 dnl Write a debug message to config.log, along with the line number in the
2543 dnl configure script.
2544 AC_DEFUN([CF_MSG_LOG],[
2545 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2547 dnl ---------------------------------------------------------------------------
2548 dnl CF_NCURSES_CC_CHECK version: 5 updated: 2020/12/31 20:19:42
2549 dnl -------------------
2550 dnl Check if we can compile with ncurses' header file
2551 dnl $1 is the cache variable to set
2552 dnl $2 is the header-file to include
2553 dnl $3 is the root name (ncurses or ncursesw)
2554 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2556 ]ifelse($3,ncursesw,[
2557 #define _XOPEN_SOURCE_EXTENDED
2558 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2559 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2562 #ifdef NCURSES_VERSION
2563 ]ifelse($3,ncursesw,[
2568 printf("%s\\n", NCURSES_VERSION);
2580 dnl ---------------------------------------------------------------------------
2581 dnl CF_NCURSES_CONFIG version: 28 updated: 2021/08/28 15:20:37
2582 dnl -----------------
2583 dnl Tie together the configure-script macros for ncurses, preferring these in
2585 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2586 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2587 dnl c) just plain libraries
2589 dnl $1 is the root library name (default: "ncurses")
2590 AC_DEFUN([CF_NCURSES_CONFIG],[
2591 AC_REQUIRE([CF_PKG_CONFIG])
2592 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2593 cf_have_ncuconfig=no
2595 if test "x${PKG_CONFIG:=none}" != xnone; then
2596 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2597 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2600 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2601 cf_have_ncuconfig=unknown
2603 cf_save_CFLAGS="$CFLAGS"
2604 cf_save_CPPFLAGS="$CPPFLAGS"
2605 cf_save_LIBS="$LIBS"
2607 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2608 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2610 # while -W for passing linker flags is prevalent, it is not "standard".
2611 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2612 # incompatible _and_ non-standard -W option which gives an error. Work
2613 # around that pitfall.
2614 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2616 CF_ADD_CFLAGS($cf_pkg_cflags)
2617 CF_ADD_LIBS($cf_pkg_libs)
2619 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2620 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2621 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2623 { const char *xx = curses_version(); return (xx == 0); }],
2624 [cf_test_ncuconfig=yes],
2625 [cf_test_ncuconfig=no],
2626 [cf_test_ncuconfig=maybe])],
2627 [cf_test_ncuconfig=no])
2629 CFLAGS="$cf_save_CFLAGS"
2630 CPPFLAGS="$cf_save_CPPFLAGS"
2631 LIBS="$cf_save_LIBS"
2633 if test "x$cf_test_ncuconfig" != xyes; then
2634 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2635 cf_pkg_cflags="$cf_temp"
2636 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2637 cf_pkg_libs="$cf_temp"
2642 CF_APPEND_CFLAGS($cf_pkg_cflags)
2643 CF_ADD_LIBS($cf_pkg_libs)
2645 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2646 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2647 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2649 { const char *xx = curses_version(); return (xx == 0); }],
2650 [cf_have_ncuconfig=yes],
2651 [cf_have_ncuconfig=no],
2652 [cf_have_ncuconfig=maybe])],
2653 [cf_have_ncuconfig=no])
2654 AC_MSG_RESULT($cf_have_ncuconfig)
2655 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2656 if test "$cf_have_ncuconfig" != "yes"
2658 CPPFLAGS="$cf_save_CPPFLAGS"
2659 LIBS="$cf_save_LIBS"
2660 NCURSES_CONFIG_PKG=none
2662 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2663 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2669 NCURSES_CONFIG_PKG=none
2672 NCURSES_CONFIG_PKG=none
2675 if test "x$cf_have_ncuconfig" = "xno"; then
2676 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2678 CF_ACVERSION_CHECK(2.52,
2679 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2680 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2682 if test "$NCURSES_CONFIG" != none ; then
2684 CF_APPEND_CFLAGS(`$NCURSES_CONFIG --cflags`)
2685 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2687 # even with config script, some packages use no-override for curses.h
2688 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2690 dnl like CF_NCURSES_CPPFLAGS
2691 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2693 dnl like CF_NCURSES_LIBS
2694 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2695 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2697 dnl like CF_NCURSES_VERSION
2698 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2702 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2703 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2710 dnl ---------------------------------------------------------------------------
2711 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2712 dnl -------------------
2713 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2714 dnl the CPPFLAGS variable so we can include its header.
2716 dnl The header files may be installed as either curses.h, or ncurses.h (would
2717 dnl be obsolete, except that some packagers prefer this name to distinguish it
2718 dnl from a "native" curses implementation). If not installed for overwrite,
2719 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2720 dnl /usr/include/ncurses), but someone may have installed overwriting the
2721 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2722 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2725 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2726 dnl is already in the include-path, don't even bother with this, since we cannot
2727 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2729 dnl The optional parameter gives the root name of the library, in case it is
2730 dnl not installed as the default curses library. That is how the
2731 dnl wide-character version of ncurses is installed.
2732 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2733 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2735 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2736 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2738 test -n "$cf_cv_curses_dir" && \
2739 test "$cf_cv_curses_dir" != "no" && { \
2740 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2743 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2744 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2745 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2746 for cf_header in $cf_header_list
2748 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2749 test "$cf_cv_ncurses_h" != no && break
2756 # some applications need this, but should check for NCURSES_VERSION
2757 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2761 dnl ---------------------------------------------------------------------------
2762 dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
2763 dnl --------------------
2764 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
2765 dnl may provide these functions. Define the symbol if it is not defined, and
2767 AC_DEFUN([CF_NCURSES_EXT_FUNCS],
2769 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
2771 #include <${cf_cv_ncurses_header:-curses.h}>],
2773 int x = NCURSES_EXT_FUNCS
2774 ],[cf_cv_ncurses_ext_funcs=defined],[
2776 #include <${cf_cv_ncurses_header:-curses.h}>],
2778 (void) assume_default_colors (0, 0);
2779 (void) curses_version ();
2780 (void) define_key (0, 0);
2781 (void) is_term_resized (0, 0);
2782 (void) key_defined (0);
2783 (void) keybound (0, 0);
2784 (void) keyok (0, 0);
2785 (void) resize_term (0, 0);
2786 (void) resizeterm (0, 0);
2787 (void) use_default_colors ();
2788 (void) use_extended_names (0);
2789 (void) wresize (0, 0, 0);],
2790 [cf_cv_ncurses_ext_funcs=yes],
2791 [cf_cv_ncurses_ext_funcs=no])
2794 test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
2796 dnl ---------------------------------------------------------------------------
2797 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2798 dnl -----------------
2799 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2800 dnl variations of ncurses' installs.
2802 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2803 AC_DEFUN([CF_NCURSES_HEADER],[
2805 if test "$cf_cv_ncurses_h" != no ; then
2806 cf_cv_ncurses_header=$cf_cv_ncurses_h
2809 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2810 test -n "$verbose" && echo
2811 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2812 test -n "$verbose" && echo "search path $cf_search"
2813 cf_save2_CPPFLAGS="$CPPFLAGS"
2814 for cf_incdir in $cf_search
2816 CF_ADD_INCDIR($cf_incdir)
2821 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2822 if test "$cf_cv_ncurses_h2" != no ; then
2823 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2824 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2827 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2829 CPPFLAGS="$cf_save2_CPPFLAGS"
2830 test "$cf_cv_ncurses_h2" != no && break
2832 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2835 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2836 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
2837 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
2838 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
2840 CF_ADD_INCDIR($cf_1st_incdir)
2844 # Set definitions to allow ifdef'ing for ncurses.h
2846 case "$cf_cv_ncurses_header" in
2848 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2852 case "$cf_cv_ncurses_header" in
2853 (ncurses/curses.h|ncurses/ncurses.h)
2854 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2856 (ncursesw/curses.h|ncursesw/ncurses.h)
2857 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2862 dnl ---------------------------------------------------------------------------
2863 dnl CF_NCURSES_LIBS version: 21 updated: 2021/09/04 06:37:12
2865 dnl Look for the ncurses library. This is a little complicated on Linux,
2866 dnl because it may be linked with the gpm (general purpose mouse) library.
2867 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2868 dnl unusable with ncurses. However, we don't want to link with gpm unless
2869 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2870 dnl and the linker will record a dependency.
2872 dnl The optional parameter gives the root name of the library, in case it is
2873 dnl not installed as the default curses library. That is how the
2874 dnl wide-character version of ncurses is installed.
2875 AC_DEFUN([CF_NCURSES_LIBS],
2876 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2878 cf_nculib_root=ifelse($1,,ncurses,$1)
2879 # This works, except for the special case where we find gpm, but
2880 # ncurses is in a nonstandard location via $LIBS, and we really want
2883 cf_ncurses_SAVE="$LIBS"
2884 AC_CHECK_LIB(gpm,Gpm_Open,
2885 [AC_CHECK_LIB(gpm,initscr,
2886 [LIBS="$cf_ncurses_SAVE"],
2887 [cf_ncurses_LIBS="-lgpm"])])
2891 # This is only necessary if you are linking against an obsolete
2892 # version of ncurses (but it should do no harm, since it is static).
2893 if test "$cf_nculib_root" = ncurses ; then
2894 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2899 CF_ADD_LIBS($cf_ncurses_LIBS)
2901 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
2903 CF_ADD_LIBS(-l$cf_nculib_root)
2905 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2906 [#include <${cf_cv_ncurses_header:-curses.h}>],
2911 if test -n "$cf_ncurses_LIBS" ; then
2912 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2913 cf_ncurses_SAVE="$LIBS"
2914 for p in $cf_ncurses_LIBS ; do
2915 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
2916 if test "$q" != "$LIBS" ; then
2920 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2921 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2922 [AC_MSG_RESULT(yes)],
2924 LIBS="$cf_ncurses_SAVE"])
2927 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2928 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2930 dnl ---------------------------------------------------------------------------
2931 dnl CF_NCURSES_PTHREADS version: 2 updated: 2016/04/22 05:07:41
2932 dnl -------------------
2933 dnl Use this followup check to ensure that we link with pthreads if ncurses
2935 AC_DEFUN([CF_NCURSES_PTHREADS],[
2936 : ${cf_nculib_root:=ifelse($1,,ncurses,$1)}
2937 AC_CHECK_LIB($cf_nculib_root,_nc_init_pthreads,
2938 cf_cv_ncurses_pthreads=yes,
2939 cf_cv_ncurses_pthreads=no)
2940 if test "$cf_cv_ncurses_pthreads" = yes
2942 CF_ADD_LIBS(-lpthread)
2945 dnl ---------------------------------------------------------------------------
2946 dnl CF_NCURSES_VERSION version: 16 updated: 2020/12/31 20:19:42
2947 dnl ------------------
2948 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2949 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
2950 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2951 AC_DEFUN([CF_NCURSES_VERSION],
2953 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2954 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2955 cf_cv_ncurses_version=no
2957 rm -f "$cf_tempfile"
2959 #include <${cf_cv_ncurses_header:-curses.h}>
2963 FILE *fp = fopen("$cf_tempfile", "w");
2964 #ifdef NCURSES_VERSION
2965 # ifdef NCURSES_VERSION_PATCH
2966 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2968 fprintf(fp, "%s\\n", NCURSES_VERSION);
2972 fprintf(fp, "old\\n");
2977 ${cf_cv_main_return:-return}(0);
2979 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
2981 # This will not work if the preprocessor splits the line after the
2982 # Autoconf token. The 'unproto' program does that.
2983 cat > "conftest.$ac_ext" <<EOF
2984 #include <${cf_cv_ncurses_header:-curses.h}>
2986 #ifdef NCURSES_VERSION
2987 Autoconf NCURSES_VERSION
2995 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
2997 if test -f conftest.out ; then
2998 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
2999 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
3003 rm -f "$cf_tempfile"
3005 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
3007 dnl ---------------------------------------------------------------------------
3008 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
3009 dnl ----------------------
3010 dnl Check for ncurses "wrap-prefix" used for public variables which have been
3011 dnl wrapped with a function to help with concurrency control.
3012 AC_DEFUN([CF_NCURSES_WRAP_PREFIX],
3014 AC_MSG_CHECKING(for ncurses wrap-prefix)
3015 AC_ARG_WITH(ncurses-wrap-prefix,
3016 [ --with-ncurses-wrap-prefix naming-prefix for ncurses wrapped-variables],
3017 [NCURSES_WRAP_PREFIX=$withval],
3018 [NCURSES_WRAP_PREFIX=_nc_])
3019 AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
3021 AC_SUBST(NCURSES_WRAP_PREFIX)
3023 dnl ---------------------------------------------------------------------------
3024 dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
3025 dnl ----------------
3026 dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
3027 dnl Some workarounds are needed in client programs to allow them to compile.
3028 AC_DEFUN([CF_NETBSD_FORM_H],[
3029 AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
3031 #include <${cf_cv_ncurses_header:-curses.h}>
3035 int y = current_field(form)->cursor_ypos;
3036 int x = current_field(form)->cursor_xpos;
3037 ],[cf_cv_netbsd_form_h=yes
3038 ],[cf_cv_netbsd_form_h=no])
3041 test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
3043 dnl ---------------------------------------------------------------------------
3044 dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
3045 dnl ----------------
3046 dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
3047 dnl Some workarounds are needed in client programs to allow them to compile.
3048 AC_DEFUN([CF_NETBSD_MENU_H],[
3049 AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
3051 #include <${cf_cv_ncurses_header:-curses.h}>
3055 int y = menu->max_item_width;
3056 ],[cf_cv_netbsd_menu_h=yes
3057 ],[cf_cv_netbsd_menu_h=no])
3060 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])
3062 dnl ---------------------------------------------------------------------------
3063 dnl CF_NO_LEAKS_OPTION version: 9 updated: 2021/06/13 19:45:41
3064 dnl ------------------
3065 dnl see CF_WITH_NO_LEAKS
3067 dnl $1 = option/name
3069 dnl $3 = symbol to define if the option is set
3070 dnl $4 = additional actions to take if the option is set
3071 AC_DEFUN([CF_NO_LEAKS_OPTION],[
3072 AC_MSG_CHECKING(if you want to use $1 for testing)
3075 [case "x$withval" in
3078 : "${with_cflags:=-g}"
3079 : "${enable_leaks:=no}"
3081 AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
3087 AC_MSG_RESULT(${with_$1:-no})
3089 case ".$with_cflags" in
3101 dnl ---------------------------------------------------------------------------
3102 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
3104 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
3105 dnl begins with one of the prefix/exec_prefix variables, and then again if the
3106 dnl result begins with 'NONE'. This is necessary to work around autoconf's
3107 dnl delayed evaluation of those symbols.
3108 AC_DEFUN([CF_PATH_SYNTAX],[
3109 if test "x$prefix" != xNONE; then
3110 cf_path_syntax="$prefix"
3112 cf_path_syntax="$ac_default_prefix"
3116 (.\[$]\(*\)*|.\'*\'*)
3120 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
3122 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3126 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3131 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3134 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3138 dnl ---------------------------------------------------------------------------
3139 dnl CF_PDCURSES_X11 version: 15 updated: 2021/01/02 09:31:20
3141 dnl Configure for PDCurses' X11 library
3142 AC_DEFUN([CF_PDCURSES_X11],[
3143 AC_REQUIRE([CF_X_ATHENA])
3145 CF_ACVERSION_CHECK(2.52,
3146 [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
3147 [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
3149 if test "$XCURSES_CONFIG" != none ; then
3151 CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
3152 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
3154 cf_cv_lib_XCurses=yes
3158 LDFLAGS="$LDFLAGS $X_LIBS"
3159 CF_CHECK_CFLAGS($X_CFLAGS)
3160 AC_CHECK_LIB(X11,XOpenDisplay,
3161 [CF_ADD_LIBS(-lX11)],,
3162 [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
3163 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
3164 CF_ADD_LIBS(-lXCurses)
3166 #include <xcurses.h>
3167 char *XCursesProgramName = "test";
3169 [cf_cv_lib_XCurses=yes],
3170 [cf_cv_lib_XCurses=no])
3175 if test "$cf_cv_lib_XCurses" = yes ; then
3176 AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
3177 AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
3178 AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
3180 AC_MSG_ERROR(Cannot link with XCurses)
3183 dnl ---------------------------------------------------------------------------
3184 dnl CF_PKG_CONFIG version: 11 updated: 2021/01/01 13:31:04
3186 dnl Check for the package-config program, unless disabled by command-line.
3187 AC_DEFUN([CF_PKG_CONFIG],
3189 AC_MSG_CHECKING(if you want to use pkg-config)
3190 AC_ARG_WITH(pkg-config,
3191 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3192 [cf_pkg_config=$withval],
3193 [cf_pkg_config=yes])
3194 AC_MSG_RESULT($cf_pkg_config)
3196 case "$cf_pkg_config" in
3201 CF_ACVERSION_CHECK(2.52,
3202 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3203 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3210 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3211 if test "$PKG_CONFIG" != none ; then
3212 CF_PATH_SYNTAX(PKG_CONFIG)
3213 elif test "x$cf_pkg_config" != xno ; then
3214 AC_MSG_WARN(pkg-config is not installed)
3217 AC_SUBST(PKG_CONFIG)
3219 dnl ---------------------------------------------------------------------------
3220 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3221 dnl -----------------
3222 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3224 dnl POSIX.1-1990 _POSIX_SOURCE
3225 dnl POSIX.1-1990 and _POSIX_SOURCE and
3226 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3228 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3229 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3230 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3233 dnl $1 is the nominal value for _POSIX_C_SOURCE
3234 AC_DEFUN([CF_POSIX_C_SOURCE],
3235 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3237 if test "$cf_cv_posix_visible" = no; then
3239 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3241 cf_save_CFLAGS="$CFLAGS"
3242 cf_save_CPPFLAGS="$CPPFLAGS"
3244 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3245 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3247 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3248 CF_MSG_LOG(if the symbol is already defined go no further)
3249 AC_TRY_COMPILE([#include <sys/types.h>],[
3250 #ifndef _POSIX_C_SOURCE
3253 [cf_cv_posix_c_source=no],
3254 [cf_want_posix_source=no
3255 case .$cf_POSIX_C_SOURCE in
3257 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3260 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3261 cf_want_posix_source=yes
3264 cf_want_posix_source=yes
3267 if test "$cf_want_posix_source" = yes ; then
3268 AC_TRY_COMPILE([#include <sys/types.h>],[
3269 #ifdef _POSIX_SOURCE
3272 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3274 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3275 CFLAGS="$cf_trim_CFLAGS"
3276 CPPFLAGS="$cf_trim_CPPFLAGS"
3277 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3278 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3279 AC_TRY_COMPILE([#include <sys/types.h>],[
3280 #ifndef _POSIX_C_SOURCE
3283 [cf_cv_posix_c_source=no])
3284 CFLAGS="$cf_save_CFLAGS"
3285 CPPFLAGS="$cf_save_CPPFLAGS"
3289 if test "$cf_cv_posix_c_source" != no ; then
3290 CFLAGS="$cf_trim_CFLAGS"
3291 CPPFLAGS="$cf_trim_CPPFLAGS"
3292 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3295 fi # cf_cv_posix_visible
3298 dnl ---------------------------------------------------------------------------
3299 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3300 dnl ----------------
3301 dnl POSIX documents test-macros which an application may set before any system
3302 dnl headers are included to make features available.
3304 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3305 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3306 dnl recent features visible in the system header files unless the application
3307 dnl overrides the corresponding test-macros. Doing that introduces portability
3310 dnl This macro makes a special check for the symbols used for this, to avoid a
3311 dnl conflicting definition.
3312 AC_DEFUN([CF_POSIX_VISIBLE],
3314 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3315 AC_TRY_COMPILE([#include <stdio.h>],[
3316 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3317 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3318 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3319 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3320 #error conflicting symbols found
3322 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3325 dnl ---------------------------------------------------------------------------
3326 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3328 dnl Append definitions and rules for the given programs to the subdirectory
3329 dnl Makefiles, and the recursion rule for the top-level Makefile.
3332 dnl $1 = script to run
3333 dnl $2 = list of subdirectories
3337 AC_DEFUN([CF_PRG_RULES],
3341 if test ! -d "$srcdir/$cf_dir" ; then
3343 elif test -f "$srcdir/$cf_dir/programs" ; then
3344 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3349 dnl ---------------------------------------------------------------------------
3350 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3352 dnl standard check for CC, plus followup sanity checks
3353 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3354 AC_DEFUN([CF_PROG_CC],[
3355 CF_ACVERSION_CHECK(2.53,
3356 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3357 AC_REQUIRE([AC_PROG_CC])],
3359 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3361 CF_ACVERSION_CHECK(2.52,
3366 dnl ---------------------------------------------------------------------------
3367 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3369 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3370 dnl misc/tabset install won't work properly. Usually this happens only when
3371 dnl using the fallback mkinstalldirs script
3372 AC_DEFUN([CF_PROG_INSTALL],
3378 CF_DIRNAME(cf_dir,$INSTALL)
3379 test -z "$cf_dir" && cf_dir=.
3380 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3384 dnl ---------------------------------------------------------------------------
3385 dnl CF_PROG_LINT version: 4 updated: 2019/11/20 18:55:37
3387 AC_DEFUN([CF_PROG_LINT],
3389 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3391 (xcppcheck|x*/cppcheck)
3392 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3397 dnl ---------------------------------------------------------------------------
3398 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3399 dnl ----------------
3400 dnl Remove a given option from CFLAGS/CPPFLAGS
3401 dnl $1 = option to remove
3402 dnl $2 = variable to update
3403 dnl $3 = nonempty to allow verbose message
3404 define([CF_REMOVE_CFLAGS],
3406 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3409 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3410 test "[$]$2" != "$cf_old_cflag" || break
3411 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3415 dnl ---------------------------------------------------------------------------
3416 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3417 dnl ----------------
3418 dnl Remove all -U and -D options that refer to the given symbol from a list
3419 dnl of C compiler options. This works around the problem that not all
3420 dnl compilers process -U and -D options from left-to-right, so a -U option
3421 dnl cannot be used to cancel the effect of a preceding -D option.
3423 dnl $1 = target (which could be the same as the source variable)
3424 dnl $2 = source (including '$')
3425 dnl $3 = symbol to remove
3426 define([CF_REMOVE_DEFINE],
3429 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3430 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3432 dnl ---------------------------------------------------------------------------
3433 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3434 dnl ---------------------
3435 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3436 dnl $1 = name of current macro
3437 define([CF_RESTORE_XTRA_FLAGS],
3439 LIBS="$cf_save_LIBS_$1"
3440 CFLAGS="$cf_save_CFLAGS_$1"
3441 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3443 dnl ---------------------------------------------------------------------------
3444 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3446 AC_DEFUN([CF_RPATH_HACK],
3447 [AC_REQUIRE([AC_PROG_FGREP])dnl
3448 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3450 AC_MSG_CHECKING(for updated LDFLAGS)
3451 if test -n "$LD_RPATH_OPT" ; then
3452 AC_MSG_RESULT(maybe)
3454 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3455 cf_rpath_list="/usr/lib /lib"
3456 if test "$cf_ldd_prog" != no
3460 AC_TRY_LINK([#include <stdio.h>],
3462 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3463 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3465 # If we passed the link-test, but get a "not found" on a given library,
3466 # this could be due to inept reconfiguration of gcc to make it only
3467 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3468 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3469 # /usr/local libraries.
3470 if test -n "$cf_rpath_oops"
3472 for cf_rpath_src in $cf_rpath_oops
3474 for cf_rpath_dir in \
3479 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3481 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3482 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3490 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3492 CF_RPATH_HACK_2(LDFLAGS)
3493 CF_RPATH_HACK_2(LIBS)
3495 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3499 AC_SUBST(EXTRA_LDFLAGS)
3501 dnl ---------------------------------------------------------------------------
3502 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3504 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3505 dnl EXTRA_LDFLAGS for each -L option found.
3507 dnl $cf_rpath_list contains a list of directories to ignore.
3509 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3510 dnl but LIBS often has misplaced -L options.
3511 AC_DEFUN([CF_RPATH_HACK_2],
3513 CF_VERBOSE(...checking $1 [$]$1)
3516 for cf_rpath_src in [$]$1
3518 case "$cf_rpath_src" in
3521 # check if this refers to a directory which we will ignore
3523 if test -n "$cf_rpath_list"
3525 for cf_rpath_item in $cf_rpath_list
3527 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3535 if test "$cf_rpath_skip" = no
3537 # transform the option
3538 if test "$LD_RPATH_OPT" = "-R " ; then
3539 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3541 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3544 # if we have not already added this, add it now
3545 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3546 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3548 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3549 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3554 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3558 CF_VERBOSE(...checked $1 [$]$1)
3559 AC_SUBST(EXTRA_LDFLAGS)
3561 dnl ---------------------------------------------------------------------------
3562 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3563 dnl ------------------
3564 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3565 dnl and libraries which do not update those variables.
3567 dnl $1 = name of current macro
3568 define([CF_SAVE_XTRA_FLAGS],
3570 cf_save_LIBS_$1="$LIBS"
3571 cf_save_CFLAGS_$1="$CFLAGS"
3572 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3573 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3574 for cf_X_CFLAGS in $X_CFLAGS
3576 case "x$cf_X_CFLAGS" in
3578 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3581 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3586 dnl ---------------------------------------------------------------------------
3587 dnl CF_SIGWINCH version: 6 updated: 2021/01/01 13:31:04
3589 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3590 dnl programs need this test).
3592 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3593 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3594 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3595 dnl break that part of the interface as well.
3596 AC_DEFUN([CF_SIGWINCH],
3598 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3600 #include <sys/types.h>
3601 #include <sys/signal.h>
3602 ],[int x = SIGWINCH; (void)x],
3603 [cf_cv_define_sigwinch=yes],
3605 #undef _XOPEN_SOURCE
3606 #undef _POSIX_SOURCE
3607 #undef _POSIX_C_SOURCE
3608 #include <sys/types.h>
3609 #include <sys/signal.h>
3610 ],[int x = SIGWINCH; (void)x],
3611 [cf_cv_define_sigwinch=maybe],
3612 [cf_cv_define_sigwinch=no])
3616 if test "$cf_cv_define_sigwinch" = maybe ; then
3617 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3618 cf_cv_fixup_sigwinch=unknown
3620 while test "$cf_sigwinch" != 1
3623 #undef _XOPEN_SOURCE
3624 #undef _POSIX_SOURCE
3625 #undef _POSIX_C_SOURCE
3626 #include <sys/types.h>
3627 #include <sys/signal.h>
3629 #if SIGWINCH != $cf_sigwinch
3632 int x = SIGWINCH; (void)x],
3633 [cf_cv_fixup_sigwinch=$cf_sigwinch
3636 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3640 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3641 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3645 dnl ---------------------------------------------------------------------------
3646 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3648 dnl signal handler, but there are some gcc dependencies in that recommendation.
3650 AC_DEFUN([CF_SIG_ATOMIC_T],
3652 AC_MSG_CHECKING(for signal global datatype)
3653 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3655 "volatile sig_atomic_t" \
3660 #include <sys/types.h>
3666 static void handler(int sig)
3671 [signal(SIGINT, handler);
3673 [cf_cv_sig_atomic_t=$cf_type],
3674 [cf_cv_sig_atomic_t=no])
3675 test "$cf_cv_sig_atomic_t" != no && break
3678 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3679 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3681 dnl ---------------------------------------------------------------------------
3682 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3684 dnl Construct a search-list for a nonstandard header/lib-file
3685 dnl $1 = the variable to return as result
3686 dnl $2 = the package name
3687 dnl $3 = the subdirectory, e.g., bin, include or lib
3688 AC_DEFUN([CF_SUBDIR_PATH],
3692 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3694 for cf_subdir_prefix in \
3702 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3705 dnl ---------------------------------------------------------------------------
3706 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3707 dnl ------------------
3708 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3709 dnl older SCO configurations.
3710 AC_DEFUN([CF_SYS_TIME_SELECT],
3712 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3713 AC_CACHE_VAL(cf_cv_sys_time_select,[
3715 #include <sys/types.h>
3716 #ifdef HAVE_SYS_TIME_H
3717 #include <sys/time.h>
3719 #ifdef HAVE_SYS_SELECT_H
3720 #include <sys/select.h>
3722 ],[],[cf_cv_sys_time_select=yes],
3723 [cf_cv_sys_time_select=no])
3725 AC_MSG_RESULT($cf_cv_sys_time_select)
3726 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3728 dnl ---------------------------------------------------------------------------
3729 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3731 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3732 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3733 dnl but some packagers change this, breaking various applications.
3734 AC_DEFUN([CF_TERM_HEADER],[
3735 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3736 case "${cf_cv_ncurses_header}" in
3737 (*/ncurses.h|*/ncursesw.h)
3738 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3741 cf_term_header=term.h
3745 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3747 AC_TRY_COMPILE([#include <stdio.h>
3748 #include <${cf_cv_ncurses_header:-curses.h}>
3750 ],[int x = auto_left_margin; (void)x],[
3751 cf_cv_term_header="$cf_test"],[
3752 cf_cv_term_header=unknown
3754 test "$cf_cv_term_header" != unknown && break
3758 # Set definitions to allow ifdef'ing to accommodate subdirectories
3760 case "$cf_cv_term_header" in
3762 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3766 case "$cf_cv_term_header" in
3768 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3771 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3775 dnl ---------------------------------------------------------------------------
3776 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3778 dnl Define a top_builddir symbol, for applications that need an absolute path.
3779 AC_DEFUN([CF_TOP_BUILDDIR],
3781 top_builddir=ifelse($1,,`pwd`,$1)
3782 AC_SUBST(top_builddir)
3784 dnl ---------------------------------------------------------------------------
3785 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3787 dnl Check for type of function-pointer passed to tputs. Some old
3788 dnl implementations used functions that had different prototypes, making it
3789 dnl hard to compile portable programs using tputs.
3790 AC_DEFUN([CF_TPUTS_PROTO],[
3791 CF_CURSES_FUNCS(tputs)
3792 if test "x$cf_cv_func_tputs" = xyes
3795 for cf_arg in int char
3797 for cf_ret in int void
3799 if test "$cf_ret" = void
3801 cf_return="/* nothing */"
3803 cf_return="return value"
3806 #include <${cf_cv_ncurses_header:-curses.h}>
3807 #include <$cf_cv_term_header>
3809 static $cf_ret outc($cf_arg value) { $cf_return; }
3811 tputs("hello", 0, outc);
3812 ${cf_cv_main_return:-return}(0);
3814 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3815 cat >>confdefs.h <<EOF
3816 #define TPUTS_ARG $cf_arg
3817 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3818 #define TPUTS_RETURN(value) $cf_return
3824 test "$cf_done" = yes && break
3828 dnl ---------------------------------------------------------------------------
3829 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3831 dnl Trim extra base X libraries added as a workaround for inconsistent library
3832 dnl dependencies returned by "new" pkg-config files.
3833 AC_DEFUN([CF_TRIM_X_LIBS],[
3834 for cf_trim_lib in Xmu Xt X11
3837 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3838 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3839 CF_VERBOSE(..trimmed $LIBS)
3844 dnl ---------------------------------------------------------------------------
3845 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3846 dnl -----------------
3847 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3848 dnl available in that form.
3850 dnl $1 = package name, which may be a shell variable
3851 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3852 dnl $3 = logic to use if pkg-config does not have the package
3853 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3854 AC_REQUIRE([CF_PKG_CONFIG])
3856 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3857 CF_VERBOSE(found package $1)
3858 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3859 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3860 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3861 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3862 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3863 CF_ADD_LIBS($cf_pkgconfig_libs)
3864 ifelse([$2],,:,[$2])
3868 ifelse([$3],,:,[$3])
3871 dnl ---------------------------------------------------------------------------
3872 dnl CF_TRY_XOPEN_SOURCE version: 3 updated: 2021/08/28 15:20:37
3873 dnl -------------------
3874 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3875 dnl can define it successfully.
3876 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3877 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3881 #include <sys/types.h>
3883 #ifndef _XOPEN_SOURCE
3886 [cf_cv_xopen_source=no],
3887 [cf_save="$CPPFLAGS"
3888 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3892 #include <sys/types.h>
3894 #ifdef _XOPEN_SOURCE
3897 [cf_cv_xopen_source=no],
3898 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3903 if test "$cf_cv_xopen_source" != no ; then
3904 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3905 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3906 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3907 CF_APPEND_CFLAGS($cf_temp_xopen_source)
3910 dnl ---------------------------------------------------------------------------
3911 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3913 dnl Make an uppercase version of a variable
3914 dnl $1=uppercase($2)
3915 AC_DEFUN([CF_UPPER],
3917 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3919 dnl ---------------------------------------------------------------------------
3920 dnl CF_UTF8_LIB version: 9 updated: 2021/05/19 19:35:25
3922 dnl Check for multibyte support, and if not found, utf8 compatibility library
3923 AC_DEFUN([CF_UTF8_LIB],
3925 AC_HAVE_HEADERS(wchar.h)
3926 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3927 cf_save_LIBS="$LIBS"
3935 [cf_cv_utf8_lib=yes],
3937 #include <libutf8.h>],[putwc(0,0);],utf8,
3938 [cf_cv_utf8_lib=add-on],
3939 [cf_cv_utf8_lib=no])
3942 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3944 if test "$cf_cv_utf8_lib" = "add-on" ; then
3945 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3946 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3947 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3948 CF_ADD_LIBS($cf_cv_library_file_utf8)
3951 dnl ---------------------------------------------------------------------------
3952 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3954 dnl Use AC_VERBOSE w/o the warnings
3955 AC_DEFUN([CF_VERBOSE],
3956 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3959 dnl ---------------------------------------------------------------------------
3960 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
3962 dnl Check if type wide-character type $1 is declared, and if so, which header
3963 dnl file is needed. The second parameter is used to set a shell variable when
3964 dnl the type is not found. The first parameter sets a shell variable for the
3966 AC_DEFUN([CF_WCHAR_TYPE],
3968 # This is needed on Tru64 5.0 to declare $1
3969 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
3974 #ifdef HAVE_LIBUTF8_H
3975 #include <libutf8.h>
3984 #ifdef HAVE_LIBUTF8_H
3985 #include <libutf8.h>
3989 [cf_cv_$1=unknown])])])
3991 if test "$cf_cv_$1" = yes ; then
3992 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
3997 # if we do not find $1 in either place, use substitution to provide a fallback.
3998 if test "$cf_cv_$1" = unknown ; then
4003 # if we find $1 in either place, use substitution to provide a fallback.
4004 if test "$cf_cv_$1" != unknown ; then
4009 dnl ---------------------------------------------------------------------------
4010 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4011 dnl ------------------
4012 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4014 AC_DEFUN([CF_WITH_CURSES_DIR],[
4016 AC_MSG_CHECKING(for specific curses-directory)
4017 AC_ARG_WITH(curses-dir,
4018 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4019 [cf_cv_curses_dir=$withval],
4020 [cf_cv_curses_dir=no])
4021 AC_MSG_RESULT($cf_cv_curses_dir)
4023 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4025 CF_PATH_SYNTAX(withval)
4026 if test -d "$cf_cv_curses_dir"
4028 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4029 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4033 dnl ---------------------------------------------------------------------------
4034 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
4035 dnl ----------------
4036 dnl Configure-option for dbmalloc. The optional parameter is used to override
4037 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4038 AC_DEFUN([CF_WITH_DBMALLOC],[
4039 CF_NO_LEAKS_OPTION(dbmalloc,
4040 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
4043 if test "$with_dbmalloc" = yes ; then
4044 AC_CHECK_HEADER(dbmalloc.h,
4045 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
4048 dnl ---------------------------------------------------------------------------
4049 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
4051 dnl Configure-option for dmalloc. The optional parameter is used to override
4052 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4053 AC_DEFUN([CF_WITH_DMALLOC],[
4054 CF_NO_LEAKS_OPTION(dmalloc,
4055 [ --with-dmalloc test: use Gray Watson's dmalloc library],
4058 if test "$with_dmalloc" = yes ; then
4059 AC_CHECK_HEADER(dmalloc.h,
4060 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
4063 dnl ---------------------------------------------------------------------------
4064 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
4065 dnl --------------------
4066 dnl Allow for overriding the basename of a library, i.e., the part to which
4067 dnl prefixes/suffixes are attached.
4069 dnl $1 = variable to set
4070 dnl $2 = option name
4071 dnl $3 = default basename for library, if omitted use $2
4072 AC_DEFUN([CF_WITH_LIB_BASENAME],
4074 AC_MSG_CHECKING(for desired basename for $2 library)
4075 AC_ARG_WITH($2-libname,
4076 [ --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
4077 [with_lib_basename=$withval],
4078 [with_lib_basename=ifelse($3,,$2,$3)])
4079 $1="$with_lib_basename"
4083 $1=ifelse($3,,$2,$3)
4089 AC_MSG_RESULT([$]$1)
4092 dnl ---------------------------------------------------------------------------
4093 dnl CF_WITH_NCURSES_ETC version: 5 updated: 2016/02/20 19:23:20
4094 dnl -------------------
4095 dnl Use this macro for programs which use any variant of "curses", e.g.,
4096 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
4097 dnl library (such as slang) should use a "--with-screen=XXX" option.
4099 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
4100 dnl of the macros inside this one - before this macro.
4101 define([CF_WITH_NCURSES_ETC],[
4106 AC_MSG_CHECKING(for specified curses library type)
4108 [ --with-screen=XXX use specified curses-libraries],
4109 [cf_cv_screen=$withval],[
4111 AC_ARG_WITH(ncursesw,
4112 [ --with-ncursesw use wide ncurses-libraries],
4113 [cf_cv_screen=ncursesw],[
4115 AC_ARG_WITH(ncurses,
4116 [ --with-ncurses use ncurses-libraries],
4117 [cf_cv_screen=ncurses],[
4119 AC_ARG_WITH(pdcurses,
4120 [ --with-pdcurses compile/link with pdcurses X11 library],
4121 [cf_cv_screen=pdcurses],[
4123 AC_ARG_WITH(curses-colr,
4124 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
4125 [cf_cv_screen=curses_colr],[
4127 AC_ARG_WITH(curses-5lib,
4128 [ --with-curses-5lib compile/link with SunOS 5lib curses],
4129 [cf_cv_screen=curses_5lib])])])])])])
4131 AC_MSG_RESULT($cf_cv_screen)
4133 case $cf_cv_screen in
4139 CF_NCURSES_CONFIG($cf_cv_screen)
4142 CF_NCURSES_CONFIG($cf_cv_screen)
4148 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4152 CF_NCURSES_PTHREADS($cf_cv_screen)
4155 dnl ---------------------------------------------------------------------------
4156 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4157 dnl -----------------------
4158 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4159 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4160 dnl script to search for the X11/Xt header files to declare (or not) the
4161 dnl symbol needed to enable "const" in those header files. If that configure
4162 dnl option is not used, then those checks are unnecessary.
4163 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4164 AC_PROVIDE([AC_PATH_XTRA])
4165 AC_PROVIDE([AC_PATH_X])
4166 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4172 dnl ---------------------------------------------------------------------------
4173 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4174 dnl ----------------
4175 AC_DEFUN([CF_WITH_VALGRIND],[
4176 CF_NO_LEAKS_OPTION(valgrind,
4177 [ --with-valgrind test: use valgrind],
4180 dnl ---------------------------------------------------------------------------
4181 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
4183 dnl Handle configure option "--with-x11-rgb", setting these shell
4186 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4187 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4189 dnl Most Linux's use this:
4190 dnl /usr/share/X11/rgb.txt
4191 dnl Debian uses this:
4192 dnl /etc/X11/rgb.txt
4193 dnl DragonFlyBSD ports uses this:
4194 dnl /usr/pkg/lib/X11/rgb.txt
4195 dnl FreeBSD ports use these:
4196 dnl /usr/local/lib/X11/rgb.txt
4197 dnl /usr/local/share/X11/rgb.txt
4198 dnl Mandriva has these:
4199 dnl /usr/lib/X11/rgb.txt
4200 dnl /usr/lib64/X11/rgb.txt
4201 dnl NetBSD has these
4202 dnl /usr/X11R7/lib/X11/rgb.txt
4203 dnl OpenSolaris uses
4205 dnl /usr/X11/etc/X11/rgb.txt
4206 dnl /usr/X11/share/X11/rgb.txt
4207 dnl /usr/X11/lib/X11/rgb.txt
4209 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4210 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4212 dnl /usr/X11/etc/X11/rgb.txt
4213 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4214 dnl /usr/X11/lib/amd64/X11/rgb.txt
4215 dnl Solaris10 uses (in this order):
4216 dnl /usr/openwin/lib/X11/rgb.txt
4217 dnl /usr/X11/lib/X11/rgb.txt
4218 AC_DEFUN([CF_WITH_X11_RGB],[
4219 AC_MSG_CHECKING(for X11 rgb file)
4220 AC_ARG_WITH(x11-rgb,
4221 [ --with-x11-rgb=FILE file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
4222 [RGB_PATH=$withval],
4225 if test "x[$]RGB_PATH" = xauto
4227 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4229 /opt/local/share/X11/rgb.txt \
4230 /opt/X11/share/X11/rgb.txt \
4231 /usr/share/X11/rgb.txt \
4232 /usr/X11/share/X11/rgb.txt \
4233 /usr/X11/lib/X11/rgb.txt \
4234 /usr/lib/X11/rgb.txt \
4236 /usr/pkg/lib/X11/rgb.txt \
4237 /usr/X11R7/lib/X11/rgb.txt \
4238 /usr/X11R6/lib/X11/rgb.txt \
4239 /usr/X11R5/lib/X11/rgb.txt \
4240 /usr/X11R4/lib/X11/rgb.txt \
4241 /usr/local/lib/X11/rgb.txt \
4242 /usr/local/share/X11/rgb.txt \
4243 /usr/lib64/X11/rgb.txt
4245 if test -f "$cf_path" ; then
4252 CF_PATH_SYNTAX(cf_path)
4255 AC_MSG_RESULT($RGB_PATH)
4257 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4260 if test "$RGB_PATH" = no
4264 AC_SUBST(no_x11_rgb)
4266 dnl ---------------------------------------------------------------------------
4267 dnl CF_XOPEN_CURSES version: 17 updated: 2021/07/10 12:22:27
4269 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4270 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4272 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4273 dnl as getbegy(). The latter is better design, but the former is standard.
4274 AC_DEFUN([CF_XOPEN_CURSES],
4276 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4277 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4278 cf_cv_need_xopen_extension=unknown
4281 #include <${cf_cv_ncurses_header:-curses.h}>],[
4282 #if defined(NCURSES_VERSION_PATCH)
4283 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4287 #ifdef NCURSES_WIDECHAR
4288 make an error /* prefer to fall-through on the second checks */
4291 int check2 = curs_set((int)sizeof(check));
4292 long x = winnstr(stdscr, "", 0);
4295 getbegyx(stdscr, y1, x1);
4300 [cf_cv_need_xopen_extension=none],
4302 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4305 #define $cf_try_xopen_extension 1
4307 #include <${cf_cv_ncurses_header:-curses.h}>],[
4309 int check2 = curs_set((int)sizeof(check));
4310 long x = winnstr(stdscr, "", 0);
4312 getbegyx(stdscr, y1, x1);
4318 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4323 case "$cf_cv_need_xopen_extension" in
4325 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4330 dnl ---------------------------------------------------------------------------
4331 dnl CF_XOPEN_SOURCE version: 59 updated: 2021/08/28 15:20:37
4333 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4334 dnl or adapt to the vendor's definitions to get equivalent functionality,
4335 dnl without losing the common non-POSIX features.
4338 dnl $1 is the nominal value for _XOPEN_SOURCE
4339 dnl $2 is the nominal value for _POSIX_C_SOURCE
4340 AC_DEFUN([CF_XOPEN_SOURCE],[
4341 AC_REQUIRE([AC_CANONICAL_HOST])
4342 AC_REQUIRE([CF_POSIX_VISIBLE])
4344 if test "$cf_cv_posix_visible" = no; then
4346 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4347 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4352 cf_xopen_source="-D_ALL_SOURCE"
4358 cf_xopen_source="-D_APPLE_C_SOURCE"
4361 cf_xopen_source="-D_DARWIN_C_SOURCE"
4364 (freebsd*|dragonfly*|midnightbsd*)
4365 # 5.x headers associate
4366 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4367 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4368 cf_POSIX_C_SOURCE=200112L
4370 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4373 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4376 cf_xopen_source="-D_HPUX_SOURCE"
4379 cf_xopen_source="-D_SGI_SOURCE"
4382 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4383 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4386 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4389 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4391 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4394 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4397 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4398 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4399 # Abusing the conformance level is a workaround.
4400 AC_MSG_WARN(this system does not provide usable locale support)
4401 cf_xopen_source="-D_BSD_SOURCE"
4405 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4406 cf_xopen_source="-D_BSD_SOURCE"
4410 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4413 cf_xopen_source="-D_OSF_SOURCE"
4416 cf_xopen_source="-D_QNX_SOURCE"
4419 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4422 cf_xopen_source="-D__EXTENSIONS__"
4423 cf_cv_xopen_source=broken
4425 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4431 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4435 if test -n "$cf_xopen_source" ; then
4436 CF_APPEND_CFLAGS($cf_xopen_source,true)
4439 dnl In anything but the default case, we may have system-specific setting
4440 dnl which is still not guaranteed to provide all of the entrypoints that
4441 dnl _XOPEN_SOURCE would yield.
4442 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4443 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4444 AC_TRY_COMPILE([#include <stdlib.h>],[
4445 #ifndef _XOPEN_SOURCE
4448 [cf_XOPEN_SOURCE_set=yes],
4449 [cf_XOPEN_SOURCE_set=no])
4450 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4451 if test "$cf_XOPEN_SOURCE_set" = yes
4453 AC_TRY_COMPILE([#include <stdlib.h>],[
4454 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4457 [cf_XOPEN_SOURCE_set_ok=yes],
4458 [cf_XOPEN_SOURCE_set_ok=no])
4459 if test "$cf_XOPEN_SOURCE_set_ok" = no
4461 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4467 fi # cf_cv_posix_visible
4469 dnl ---------------------------------------------------------------------------
4470 dnl CF_X_ATHENA version: 24 updated: 2020/03/10 18:53:47
4472 dnl Check for Xaw (Athena) libraries
4474 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4475 AC_DEFUN([CF_X_ATHENA],
4477 cf_x_athena=${cf_x_athena:-Xaw}
4479 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4482 [ --with-Xaw3d link with Xaw 3d library])
4483 if test "$withval" = yes ; then
4490 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4492 AC_ARG_WITH(Xaw3dxft,
4493 [ --with-Xaw3dxft link with Xaw 3d xft library])
4494 if test "$withval" = yes ; then
4495 cf_x_athena=Xaw3dxft
4501 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4504 [ --with-neXtaw link with neXT Athena library])
4505 if test "$withval" = yes ; then
4512 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4514 AC_ARG_WITH(XawPlus,
4515 [ --with-XawPlus link with Athena-Plus library])
4516 if test "$withval" = yes ; then
4525 if test "$PKG_CONFIG" != none ; then
4527 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4528 for cf_athena_pkg in \
4531 ${cf_x_athena}-devel \
4533 lib${cf_x_athena}-devel
4535 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4536 cf_x_athena_lib="$cf_pkgconfig_libs"
4537 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4538 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4542 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4544 #include <X11/Xmu/CharSet.h>
4546 int check = XmuCompareISOLatin1("big", "small");
4548 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4550 if test "$cf_cv_xaw_compat" = no
4552 # workaround for broken ".pc" files...
4553 case "$cf_x_athena_lib" in
4557 CF_VERBOSE(work around broken package)
4559 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4560 CF_TRY_PKG_CONFIG(xmu,[
4562 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4564 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4575 if test -z "$cf_x_athena_lib" ; then
4578 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4579 CF_X_ATHENA_LIBS($cf_x_athena)
4582 dnl ---------------------------------------------------------------------------
4583 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4584 dnl --------------------
4585 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4586 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4587 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4589 AC_REQUIRE([AC_PATH_XTRA])
4590 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4593 for cf_path in default \
4594 /usr/contrib/X11R6 \
4595 /usr/contrib/X11R5 \
4599 if test -z "$cf_x_athena_inc" ; then
4600 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4601 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4602 if test "$cf_path" != default ; then
4603 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4604 AC_MSG_CHECKING(for $cf_test in $cf_path)
4606 AC_MSG_CHECKING(for $cf_test)
4609 #include <X11/Intrinsic.h>
4610 #include <$cf_test>],[],
4613 AC_MSG_RESULT($cf_result)
4614 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4615 if test "$cf_result" = yes ; then
4616 test "$cf_path" = default && cf_x_athena_inc=default
4617 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4623 if test -z "$cf_x_athena_inc" ; then
4624 AC_MSG_WARN([Unable to find Athena header files])
4625 elif test "$cf_x_athena_inc" != default ; then
4626 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4629 dnl ---------------------------------------------------------------------------
4630 dnl CF_X_ATHENA_LIBS version: 13 updated: 2020/01/11 18:16:10
4631 dnl ----------------
4632 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4633 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4634 AC_DEFUN([CF_X_ATHENA_LIBS],
4635 [AC_REQUIRE([CF_X_TOOLKIT])
4636 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4639 for cf_path in default \
4640 /usr/contrib/X11R6 \
4641 /usr/contrib/X11R5 \
4646 ${cf_x_athena_root} \
4647 ${cf_x_athena_root}7 \
4648 ${cf_x_athena_root}6
4652 "-l$cf_lib -lXpm -lXmu" \
4653 "-l${cf_lib}_s -lXmu_s"
4655 test -n "$cf_x_athena_lib" && break
4657 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4658 cf_test=XawSimpleMenuAddGlobalActions
4659 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4660 CF_ADD_LIBS($cf_libs)
4661 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4663 #include <X11/Intrinsic.h>
4664 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4666 $cf_test((XtAppContext) 0)],
4669 AC_MSG_RESULT($cf_result)
4670 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4672 if test "$cf_result" = yes ; then
4673 cf_x_athena_lib="$cf_libs"
4677 test -n "$cf_x_athena_lib" && break
4681 if test -z "$cf_x_athena_lib" ; then
4683 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4686 CF_ADD_LIBS($cf_x_athena_lib)
4687 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4688 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4690 dnl ---------------------------------------------------------------------------
4691 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4693 AC_DEFUN([CF_X_EXT],[
4694 CF_TRY_PKG_CONFIG(Xext,,[
4695 AC_CHECK_LIB(Xext,XextCreateExtension,
4696 [CF_ADD_LIB(Xext)])])
4698 dnl ---------------------------------------------------------------------------
4699 dnl CF_X_TOOLKIT version: 26 updated: 2021/01/02 09:31:20
4701 dnl Check for X Toolkit libraries
4702 AC_DEFUN([CF_X_TOOLKIT],
4704 AC_REQUIRE([AC_PATH_XTRA])
4705 AC_REQUIRE([CF_CHECK_CACHE])
4707 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4708 # in some cases has installed dummy files in the former, other cases replaced
4709 # it with a link to the new location). This complicates the configure script.
4710 # Check for that pitfall, and recover using pkg-config
4712 # If none of these are set, the configuration is almost certainly broken.
4713 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4715 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4716 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4717 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4718 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4720 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4725 CF_TRY_PKG_CONFIG(xt,[
4731 # we have an "xt" package, but it may omit Xt's dependency on X11
4732 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4734 #include <X11/Xlib.h>
4736 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4737 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4738 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4739 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4740 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4741 if test "$cf_cv_xt_x11_compat" = no
4743 CF_VERBOSE(work around broken X11 dependency)
4744 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4745 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4750 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4752 #include <X11/Shell.h>
4753 ],[int num = IceConnectionNumber(0); (void) num
4754 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4756 if test "$cf_cv_xt_ice_compat" = no
4758 # workaround for broken ".pc" files used for X Toolkit.
4759 case "x$X_PRE_LIBS" in
4765 CF_VERBOSE(work around broken ICE dependency)
4766 CF_TRY_PKG_CONFIG(ice,
4767 [CF_TRY_PKG_CONFIG(sm)],
4768 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4778 LDFLAGS="$X_LIBS $LDFLAGS"
4779 CF_CHECK_CFLAGS($X_CFLAGS)
4781 AC_CHECK_FUNC(XOpenDisplay,,[
4782 AC_CHECK_LIB(X11,XOpenDisplay,
4783 [CF_ADD_LIB(X11)])])
4785 AC_CHECK_FUNC(XtAppInitialize,,[
4786 AC_CHECK_LIB(Xt, XtAppInitialize,
4787 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4789 LIBS="-lXt $LIBS"])])
4792 if test "$cf_have_X_LIBS" = no ; then
4794 [Unable to successfully link X Toolkit library (-lXt) with
4795 test program. You will have to check and add the proper libraries by hand
4799 dnl ---------------------------------------------------------------------------
4800 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4802 dnl Attempt to make a copy of a curses data item. This is needed in the
4803 dnl check-data configure tests when using ncurses, because the symbol may be
4804 dnl actually a function return-value. That could happen if the linker is
4805 dnl broken (does not resolve data-only references), or if ncurses is configured
4806 dnl to support re-entrant code.
4809 define([CF__CURSES_DATA],[
4810 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4811 const void *$1 = (const void *)($2);
4813 const void *$1 = &($2);
4815 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4817 dnl ---------------------------------------------------------------------------
4818 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4820 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4821 dnl are both available.
4822 define([CF__CURSES_HEAD],[
4824 #include <xcurses.h>
4825 char * XCursesProgramName = "test";
4827 #include <${cf_cv_ncurses_header:-curses.h}>
4828 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4829 #include <ncursesw/term.h>
4830 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4831 #include <ncurses/term.h>
4832 #elif defined(HAVE_TERM_H)