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 1.202 2021/10/11 00:18:09 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: 12 updated: 2021/10/10 20:18:09
3186 dnl Check for the package-config program, unless disabled by command-line.
3188 dnl Sets $PKG_CONFIG to the pathname of the pkg-config program.
3189 AC_DEFUN([CF_PKG_CONFIG],
3191 AC_MSG_CHECKING(if you want to use pkg-config)
3192 AC_ARG_WITH(pkg-config,
3193 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3194 [cf_pkg_config=$withval],
3195 [cf_pkg_config=yes])
3196 AC_MSG_RESULT($cf_pkg_config)
3198 case "$cf_pkg_config" in
3203 CF_ACVERSION_CHECK(2.52,
3204 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3205 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3212 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3213 if test "$PKG_CONFIG" != none ; then
3214 CF_PATH_SYNTAX(PKG_CONFIG)
3215 elif test "x$cf_pkg_config" != xno ; then
3216 AC_MSG_WARN(pkg-config is not installed)
3219 AC_SUBST(PKG_CONFIG)
3221 dnl ---------------------------------------------------------------------------
3222 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3223 dnl -----------------
3224 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3226 dnl POSIX.1-1990 _POSIX_SOURCE
3227 dnl POSIX.1-1990 and _POSIX_SOURCE and
3228 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3230 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3231 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3232 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3235 dnl $1 is the nominal value for _POSIX_C_SOURCE
3236 AC_DEFUN([CF_POSIX_C_SOURCE],
3237 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3239 if test "$cf_cv_posix_visible" = no; then
3241 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3243 cf_save_CFLAGS="$CFLAGS"
3244 cf_save_CPPFLAGS="$CPPFLAGS"
3246 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3247 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3249 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3250 CF_MSG_LOG(if the symbol is already defined go no further)
3251 AC_TRY_COMPILE([#include <sys/types.h>],[
3252 #ifndef _POSIX_C_SOURCE
3255 [cf_cv_posix_c_source=no],
3256 [cf_want_posix_source=no
3257 case .$cf_POSIX_C_SOURCE in
3259 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3262 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3263 cf_want_posix_source=yes
3266 cf_want_posix_source=yes
3269 if test "$cf_want_posix_source" = yes ; then
3270 AC_TRY_COMPILE([#include <sys/types.h>],[
3271 #ifdef _POSIX_SOURCE
3274 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3276 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3277 CFLAGS="$cf_trim_CFLAGS"
3278 CPPFLAGS="$cf_trim_CPPFLAGS"
3279 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3280 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3281 AC_TRY_COMPILE([#include <sys/types.h>],[
3282 #ifndef _POSIX_C_SOURCE
3285 [cf_cv_posix_c_source=no])
3286 CFLAGS="$cf_save_CFLAGS"
3287 CPPFLAGS="$cf_save_CPPFLAGS"
3291 if test "$cf_cv_posix_c_source" != no ; then
3292 CFLAGS="$cf_trim_CFLAGS"
3293 CPPFLAGS="$cf_trim_CPPFLAGS"
3294 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3297 fi # cf_cv_posix_visible
3300 dnl ---------------------------------------------------------------------------
3301 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3302 dnl ----------------
3303 dnl POSIX documents test-macros which an application may set before any system
3304 dnl headers are included to make features available.
3306 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3307 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3308 dnl recent features visible in the system header files unless the application
3309 dnl overrides the corresponding test-macros. Doing that introduces portability
3312 dnl This macro makes a special check for the symbols used for this, to avoid a
3313 dnl conflicting definition.
3314 AC_DEFUN([CF_POSIX_VISIBLE],
3316 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3317 AC_TRY_COMPILE([#include <stdio.h>],[
3318 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3319 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3320 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3321 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3322 #error conflicting symbols found
3324 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3327 dnl ---------------------------------------------------------------------------
3328 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3330 dnl Append definitions and rules for the given programs to the subdirectory
3331 dnl Makefiles, and the recursion rule for the top-level Makefile.
3334 dnl $1 = script to run
3335 dnl $2 = list of subdirectories
3339 AC_DEFUN([CF_PRG_RULES],
3343 if test ! -d "$srcdir/$cf_dir" ; then
3345 elif test -f "$srcdir/$cf_dir/programs" ; then
3346 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3351 dnl ---------------------------------------------------------------------------
3352 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3354 dnl standard check for CC, plus followup sanity checks
3355 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3356 AC_DEFUN([CF_PROG_CC],[
3357 CF_ACVERSION_CHECK(2.53,
3358 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3359 AC_REQUIRE([AC_PROG_CC])],
3361 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3363 CF_ACVERSION_CHECK(2.52,
3368 dnl ---------------------------------------------------------------------------
3369 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3371 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3372 dnl misc/tabset install won't work properly. Usually this happens only when
3373 dnl using the fallback mkinstalldirs script
3374 AC_DEFUN([CF_PROG_INSTALL],
3380 CF_DIRNAME(cf_dir,$INSTALL)
3381 test -z "$cf_dir" && cf_dir=.
3382 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3386 dnl ---------------------------------------------------------------------------
3387 dnl CF_PROG_LINT version: 4 updated: 2019/11/20 18:55:37
3389 AC_DEFUN([CF_PROG_LINT],
3391 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3393 (xcppcheck|x*/cppcheck)
3394 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3399 dnl ---------------------------------------------------------------------------
3400 dnl CF_REMOVE_CFLAGS version: 3 updated: 2021/09/05 17:25:40
3401 dnl ----------------
3402 dnl Remove a given option from CFLAGS/CPPFLAGS
3403 dnl $1 = option to remove
3404 dnl $2 = variable to update
3405 dnl $3 = nonempty to allow verbose message
3406 define([CF_REMOVE_CFLAGS],
3408 cf_tmp_cflag=`echo "x$1" | sed -e 's/^.//' -e 's/=.*//'`
3411 cf_old_cflag=`echo "x[$]$2" | sed -e 's/^.//' -e 's/[[ ]][[ ]]*-/ -/g' -e "s%$cf_tmp_cflag\\(=[[^ ]][[^ ]]*\\)\?%%" -e 's/^[[ ]]*//' -e 's%[[ ]][[ ]]*-D% -D%g' -e 's%[[ ]][[ ]]*-I% -I%g'`
3412 test "[$]$2" != "$cf_old_cflag" || break
3413 ifelse([$3],,,[CF_VERBOSE(removing old option $1 from $2)])
3417 dnl ---------------------------------------------------------------------------
3418 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3419 dnl ----------------
3420 dnl Remove all -U and -D options that refer to the given symbol from a list
3421 dnl of C compiler options. This works around the problem that not all
3422 dnl compilers process -U and -D options from left-to-right, so a -U option
3423 dnl cannot be used to cancel the effect of a preceding -D option.
3425 dnl $1 = target (which could be the same as the source variable)
3426 dnl $2 = source (including '$')
3427 dnl $3 = symbol to remove
3428 define([CF_REMOVE_DEFINE],
3431 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3432 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3434 dnl ---------------------------------------------------------------------------
3435 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3436 dnl ---------------------
3437 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3438 dnl $1 = name of current macro
3439 define([CF_RESTORE_XTRA_FLAGS],
3441 LIBS="$cf_save_LIBS_$1"
3442 CFLAGS="$cf_save_CFLAGS_$1"
3443 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3445 dnl ---------------------------------------------------------------------------
3446 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3448 AC_DEFUN([CF_RPATH_HACK],
3449 [AC_REQUIRE([AC_PROG_FGREP])dnl
3450 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3452 AC_MSG_CHECKING(for updated LDFLAGS)
3453 if test -n "$LD_RPATH_OPT" ; then
3454 AC_MSG_RESULT(maybe)
3456 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3457 cf_rpath_list="/usr/lib /lib"
3458 if test "$cf_ldd_prog" != no
3462 AC_TRY_LINK([#include <stdio.h>],
3464 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3465 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3467 # If we passed the link-test, but get a "not found" on a given library,
3468 # this could be due to inept reconfiguration of gcc to make it only
3469 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3470 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3471 # /usr/local libraries.
3472 if test -n "$cf_rpath_oops"
3474 for cf_rpath_src in $cf_rpath_oops
3476 for cf_rpath_dir in \
3481 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3483 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3484 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3492 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3494 CF_RPATH_HACK_2(LDFLAGS)
3495 CF_RPATH_HACK_2(LIBS)
3497 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3501 AC_SUBST(EXTRA_LDFLAGS)
3503 dnl ---------------------------------------------------------------------------
3504 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3506 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3507 dnl EXTRA_LDFLAGS for each -L option found.
3509 dnl $cf_rpath_list contains a list of directories to ignore.
3511 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3512 dnl but LIBS often has misplaced -L options.
3513 AC_DEFUN([CF_RPATH_HACK_2],
3515 CF_VERBOSE(...checking $1 [$]$1)
3518 for cf_rpath_src in [$]$1
3520 case "$cf_rpath_src" in
3523 # check if this refers to a directory which we will ignore
3525 if test -n "$cf_rpath_list"
3527 for cf_rpath_item in $cf_rpath_list
3529 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3537 if test "$cf_rpath_skip" = no
3539 # transform the option
3540 if test "$LD_RPATH_OPT" = "-R " ; then
3541 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3543 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3546 # if we have not already added this, add it now
3547 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3548 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3550 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3551 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3556 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3560 CF_VERBOSE(...checked $1 [$]$1)
3561 AC_SUBST(EXTRA_LDFLAGS)
3563 dnl ---------------------------------------------------------------------------
3564 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3565 dnl ------------------
3566 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3567 dnl and libraries which do not update those variables.
3569 dnl $1 = name of current macro
3570 define([CF_SAVE_XTRA_FLAGS],
3572 cf_save_LIBS_$1="$LIBS"
3573 cf_save_CFLAGS_$1="$CFLAGS"
3574 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3575 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3576 for cf_X_CFLAGS in $X_CFLAGS
3578 case "x$cf_X_CFLAGS" in
3580 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3583 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3588 dnl ---------------------------------------------------------------------------
3589 dnl CF_SIGWINCH version: 6 updated: 2021/01/01 13:31:04
3591 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3592 dnl programs need this test).
3594 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3595 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3596 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3597 dnl break that part of the interface as well.
3598 AC_DEFUN([CF_SIGWINCH],
3600 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3602 #include <sys/types.h>
3603 #include <sys/signal.h>
3604 ],[int x = SIGWINCH; (void)x],
3605 [cf_cv_define_sigwinch=yes],
3607 #undef _XOPEN_SOURCE
3608 #undef _POSIX_SOURCE
3609 #undef _POSIX_C_SOURCE
3610 #include <sys/types.h>
3611 #include <sys/signal.h>
3612 ],[int x = SIGWINCH; (void)x],
3613 [cf_cv_define_sigwinch=maybe],
3614 [cf_cv_define_sigwinch=no])
3618 if test "$cf_cv_define_sigwinch" = maybe ; then
3619 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3620 cf_cv_fixup_sigwinch=unknown
3622 while test "$cf_sigwinch" != 1
3625 #undef _XOPEN_SOURCE
3626 #undef _POSIX_SOURCE
3627 #undef _POSIX_C_SOURCE
3628 #include <sys/types.h>
3629 #include <sys/signal.h>
3631 #if SIGWINCH != $cf_sigwinch
3634 int x = SIGWINCH; (void)x],
3635 [cf_cv_fixup_sigwinch=$cf_sigwinch
3638 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3642 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3643 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3647 dnl ---------------------------------------------------------------------------
3648 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3650 dnl signal handler, but there are some gcc dependencies in that recommendation.
3652 AC_DEFUN([CF_SIG_ATOMIC_T],
3654 AC_MSG_CHECKING(for signal global datatype)
3655 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3657 "volatile sig_atomic_t" \
3662 #include <sys/types.h>
3668 static void handler(int sig)
3673 [signal(SIGINT, handler);
3675 [cf_cv_sig_atomic_t=$cf_type],
3676 [cf_cv_sig_atomic_t=no])
3677 test "$cf_cv_sig_atomic_t" != no && break
3680 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3681 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3683 dnl ---------------------------------------------------------------------------
3684 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3686 dnl Construct a search-list for a nonstandard header/lib-file
3687 dnl $1 = the variable to return as result
3688 dnl $2 = the package name
3689 dnl $3 = the subdirectory, e.g., bin, include or lib
3690 AC_DEFUN([CF_SUBDIR_PATH],
3694 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3696 for cf_subdir_prefix in \
3704 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3707 dnl ---------------------------------------------------------------------------
3708 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3709 dnl ------------------
3710 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3711 dnl older SCO configurations.
3712 AC_DEFUN([CF_SYS_TIME_SELECT],
3714 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3715 AC_CACHE_VAL(cf_cv_sys_time_select,[
3717 #include <sys/types.h>
3718 #ifdef HAVE_SYS_TIME_H
3719 #include <sys/time.h>
3721 #ifdef HAVE_SYS_SELECT_H
3722 #include <sys/select.h>
3724 ],[],[cf_cv_sys_time_select=yes],
3725 [cf_cv_sys_time_select=no])
3727 AC_MSG_RESULT($cf_cv_sys_time_select)
3728 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3730 dnl ---------------------------------------------------------------------------
3731 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3733 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3734 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3735 dnl but some packagers change this, breaking various applications.
3736 AC_DEFUN([CF_TERM_HEADER],[
3737 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3738 case "${cf_cv_ncurses_header}" in
3739 (*/ncurses.h|*/ncursesw.h)
3740 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3743 cf_term_header=term.h
3747 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3749 AC_TRY_COMPILE([#include <stdio.h>
3750 #include <${cf_cv_ncurses_header:-curses.h}>
3752 ],[int x = auto_left_margin; (void)x],[
3753 cf_cv_term_header="$cf_test"],[
3754 cf_cv_term_header=unknown
3756 test "$cf_cv_term_header" != unknown && break
3760 # Set definitions to allow ifdef'ing to accommodate subdirectories
3762 case "$cf_cv_term_header" in
3764 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3768 case "$cf_cv_term_header" in
3770 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3773 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3777 dnl ---------------------------------------------------------------------------
3778 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3780 dnl Define a top_builddir symbol, for applications that need an absolute path.
3781 AC_DEFUN([CF_TOP_BUILDDIR],
3783 top_builddir=ifelse($1,,`pwd`,$1)
3784 AC_SUBST(top_builddir)
3786 dnl ---------------------------------------------------------------------------
3787 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3789 dnl Check for type of function-pointer passed to tputs. Some old
3790 dnl implementations used functions that had different prototypes, making it
3791 dnl hard to compile portable programs using tputs.
3792 AC_DEFUN([CF_TPUTS_PROTO],[
3793 CF_CURSES_FUNCS(tputs)
3794 if test "x$cf_cv_func_tputs" = xyes
3797 for cf_arg in int char
3799 for cf_ret in int void
3801 if test "$cf_ret" = void
3803 cf_return="/* nothing */"
3805 cf_return="return value"
3808 #include <${cf_cv_ncurses_header:-curses.h}>
3809 #include <$cf_cv_term_header>
3811 static $cf_ret outc($cf_arg value) { $cf_return; }
3813 tputs("hello", 0, outc);
3814 ${cf_cv_main_return:-return}(0);
3816 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3817 cat >>confdefs.h <<EOF
3818 #define TPUTS_ARG $cf_arg
3819 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3820 #define TPUTS_RETURN(value) $cf_return
3826 test "$cf_done" = yes && break
3830 dnl ---------------------------------------------------------------------------
3831 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3833 dnl Trim extra base X libraries added as a workaround for inconsistent library
3834 dnl dependencies returned by "new" pkg-config files.
3835 AC_DEFUN([CF_TRIM_X_LIBS],[
3836 for cf_trim_lib in Xmu Xt X11
3839 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3840 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3841 CF_VERBOSE(..trimmed $LIBS)
3846 dnl ---------------------------------------------------------------------------
3847 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3848 dnl -----------------
3849 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3850 dnl available in that form.
3852 dnl $1 = package name, which may be a shell variable
3853 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3854 dnl $3 = logic to use if pkg-config does not have the package
3855 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3856 AC_REQUIRE([CF_PKG_CONFIG])
3858 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3859 CF_VERBOSE(found package $1)
3860 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3861 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3862 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3863 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3864 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3865 CF_ADD_LIBS($cf_pkgconfig_libs)
3866 ifelse([$2],,:,[$2])
3870 ifelse([$3],,:,[$3])
3873 dnl ---------------------------------------------------------------------------
3874 dnl CF_TRY_XOPEN_SOURCE version: 3 updated: 2021/08/28 15:20:37
3875 dnl -------------------
3876 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3877 dnl can define it successfully.
3878 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3879 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3883 #include <sys/types.h>
3885 #ifndef _XOPEN_SOURCE
3888 [cf_cv_xopen_source=no],
3889 [cf_save="$CPPFLAGS"
3890 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3894 #include <sys/types.h>
3896 #ifdef _XOPEN_SOURCE
3899 [cf_cv_xopen_source=no],
3900 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3905 if test "$cf_cv_xopen_source" != no ; then
3906 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3907 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3908 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3909 CF_APPEND_CFLAGS($cf_temp_xopen_source)
3912 dnl ---------------------------------------------------------------------------
3913 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3915 dnl Make an uppercase version of a variable
3916 dnl $1=uppercase($2)
3917 AC_DEFUN([CF_UPPER],
3919 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3921 dnl ---------------------------------------------------------------------------
3922 dnl CF_UTF8_LIB version: 9 updated: 2021/05/19 19:35:25
3924 dnl Check for multibyte support, and if not found, utf8 compatibility library
3925 AC_DEFUN([CF_UTF8_LIB],
3927 AC_HAVE_HEADERS(wchar.h)
3928 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3929 cf_save_LIBS="$LIBS"
3937 [cf_cv_utf8_lib=yes],
3939 #include <libutf8.h>],[putwc(0,0);],utf8,
3940 [cf_cv_utf8_lib=add-on],
3941 [cf_cv_utf8_lib=no])
3944 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3946 if test "$cf_cv_utf8_lib" = "add-on" ; then
3947 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3948 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3949 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3950 CF_ADD_LIBS($cf_cv_library_file_utf8)
3953 dnl ---------------------------------------------------------------------------
3954 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3956 dnl Use AC_VERBOSE w/o the warnings
3957 AC_DEFUN([CF_VERBOSE],
3958 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3961 dnl ---------------------------------------------------------------------------
3962 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
3964 dnl Check if type wide-character type $1 is declared, and if so, which header
3965 dnl file is needed. The second parameter is used to set a shell variable when
3966 dnl the type is not found. The first parameter sets a shell variable for the
3968 AC_DEFUN([CF_WCHAR_TYPE],
3970 # This is needed on Tru64 5.0 to declare $1
3971 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
3976 #ifdef HAVE_LIBUTF8_H
3977 #include <libutf8.h>
3986 #ifdef HAVE_LIBUTF8_H
3987 #include <libutf8.h>
3991 [cf_cv_$1=unknown])])])
3993 if test "$cf_cv_$1" = yes ; then
3994 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
3999 # if we do not find $1 in either place, use substitution to provide a fallback.
4000 if test "$cf_cv_$1" = unknown ; then
4005 # if we find $1 in either place, use substitution to provide a fallback.
4006 if test "$cf_cv_$1" != unknown ; then
4011 dnl ---------------------------------------------------------------------------
4012 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
4013 dnl ------------------
4014 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
4016 AC_DEFUN([CF_WITH_CURSES_DIR],[
4018 AC_MSG_CHECKING(for specific curses-directory)
4019 AC_ARG_WITH(curses-dir,
4020 [ --with-curses-dir=DIR directory in which (n)curses is installed],
4021 [cf_cv_curses_dir=$withval],
4022 [cf_cv_curses_dir=no])
4023 AC_MSG_RESULT($cf_cv_curses_dir)
4025 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
4027 CF_PATH_SYNTAX(withval)
4028 if test -d "$cf_cv_curses_dir"
4030 CF_ADD_INCDIR($cf_cv_curses_dir/include)
4031 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
4035 dnl ---------------------------------------------------------------------------
4036 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
4037 dnl ----------------
4038 dnl Configure-option for dbmalloc. The optional parameter is used to override
4039 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4040 AC_DEFUN([CF_WITH_DBMALLOC],[
4041 CF_NO_LEAKS_OPTION(dbmalloc,
4042 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
4045 if test "$with_dbmalloc" = yes ; then
4046 AC_CHECK_HEADER(dbmalloc.h,
4047 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
4050 dnl ---------------------------------------------------------------------------
4051 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
4053 dnl Configure-option for dmalloc. The optional parameter is used to override
4054 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
4055 AC_DEFUN([CF_WITH_DMALLOC],[
4056 CF_NO_LEAKS_OPTION(dmalloc,
4057 [ --with-dmalloc test: use Gray Watson's dmalloc library],
4060 if test "$with_dmalloc" = yes ; then
4061 AC_CHECK_HEADER(dmalloc.h,
4062 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
4065 dnl ---------------------------------------------------------------------------
4066 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
4067 dnl --------------------
4068 dnl Allow for overriding the basename of a library, i.e., the part to which
4069 dnl prefixes/suffixes are attached.
4071 dnl $1 = variable to set
4072 dnl $2 = option name
4073 dnl $3 = default basename for library, if omitted use $2
4074 AC_DEFUN([CF_WITH_LIB_BASENAME],
4076 AC_MSG_CHECKING(for desired basename for $2 library)
4077 AC_ARG_WITH($2-libname,
4078 [ --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
4079 [with_lib_basename=$withval],
4080 [with_lib_basename=ifelse($3,,$2,$3)])
4081 $1="$with_lib_basename"
4085 $1=ifelse($3,,$2,$3)
4091 AC_MSG_RESULT([$]$1)
4094 dnl ---------------------------------------------------------------------------
4095 dnl CF_WITH_NCURSES_ETC version: 5 updated: 2016/02/20 19:23:20
4096 dnl -------------------
4097 dnl Use this macro for programs which use any variant of "curses", e.g.,
4098 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
4099 dnl library (such as slang) should use a "--with-screen=XXX" option.
4101 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
4102 dnl of the macros inside this one - before this macro.
4103 define([CF_WITH_NCURSES_ETC],[
4108 AC_MSG_CHECKING(for specified curses library type)
4110 [ --with-screen=XXX use specified curses-libraries],
4111 [cf_cv_screen=$withval],[
4113 AC_ARG_WITH(ncursesw,
4114 [ --with-ncursesw use wide ncurses-libraries],
4115 [cf_cv_screen=ncursesw],[
4117 AC_ARG_WITH(ncurses,
4118 [ --with-ncurses use ncurses-libraries],
4119 [cf_cv_screen=ncurses],[
4121 AC_ARG_WITH(pdcurses,
4122 [ --with-pdcurses compile/link with pdcurses X11 library],
4123 [cf_cv_screen=pdcurses],[
4125 AC_ARG_WITH(curses-colr,
4126 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
4127 [cf_cv_screen=curses_colr],[
4129 AC_ARG_WITH(curses-5lib,
4130 [ --with-curses-5lib compile/link with SunOS 5lib curses],
4131 [cf_cv_screen=curses_5lib])])])])])])
4133 AC_MSG_RESULT($cf_cv_screen)
4135 case $cf_cv_screen in
4141 CF_NCURSES_CONFIG($cf_cv_screen)
4144 CF_NCURSES_CONFIG($cf_cv_screen)
4150 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4154 CF_NCURSES_PTHREADS($cf_cv_screen)
4157 dnl ---------------------------------------------------------------------------
4158 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4159 dnl -----------------------
4160 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4161 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4162 dnl script to search for the X11/Xt header files to declare (or not) the
4163 dnl symbol needed to enable "const" in those header files. If that configure
4164 dnl option is not used, then those checks are unnecessary.
4165 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4166 AC_PROVIDE([AC_PATH_XTRA])
4167 AC_PROVIDE([AC_PATH_X])
4168 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4174 dnl ---------------------------------------------------------------------------
4175 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4176 dnl ----------------
4177 AC_DEFUN([CF_WITH_VALGRIND],[
4178 CF_NO_LEAKS_OPTION(valgrind,
4179 [ --with-valgrind test: use valgrind],
4182 dnl ---------------------------------------------------------------------------
4183 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
4185 dnl Handle configure option "--with-x11-rgb", setting these shell
4188 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4189 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4191 dnl Most Linux's use this:
4192 dnl /usr/share/X11/rgb.txt
4193 dnl Debian uses this:
4194 dnl /etc/X11/rgb.txt
4195 dnl DragonFlyBSD ports uses this:
4196 dnl /usr/pkg/lib/X11/rgb.txt
4197 dnl FreeBSD ports use these:
4198 dnl /usr/local/lib/X11/rgb.txt
4199 dnl /usr/local/share/X11/rgb.txt
4200 dnl Mandriva has these:
4201 dnl /usr/lib/X11/rgb.txt
4202 dnl /usr/lib64/X11/rgb.txt
4203 dnl NetBSD has these
4204 dnl /usr/X11R7/lib/X11/rgb.txt
4205 dnl OpenSolaris uses
4207 dnl /usr/X11/etc/X11/rgb.txt
4208 dnl /usr/X11/share/X11/rgb.txt
4209 dnl /usr/X11/lib/X11/rgb.txt
4211 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4212 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4214 dnl /usr/X11/etc/X11/rgb.txt
4215 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4216 dnl /usr/X11/lib/amd64/X11/rgb.txt
4217 dnl Solaris10 uses (in this order):
4218 dnl /usr/openwin/lib/X11/rgb.txt
4219 dnl /usr/X11/lib/X11/rgb.txt
4220 AC_DEFUN([CF_WITH_X11_RGB],[
4221 AC_MSG_CHECKING(for X11 rgb file)
4222 AC_ARG_WITH(x11-rgb,
4223 [ --with-x11-rgb=FILE file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
4224 [RGB_PATH=$withval],
4227 if test "x[$]RGB_PATH" = xauto
4229 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4231 /opt/local/share/X11/rgb.txt \
4232 /opt/X11/share/X11/rgb.txt \
4233 /usr/share/X11/rgb.txt \
4234 /usr/X11/share/X11/rgb.txt \
4235 /usr/X11/lib/X11/rgb.txt \
4236 /usr/lib/X11/rgb.txt \
4238 /usr/pkg/lib/X11/rgb.txt \
4239 /usr/X11R7/lib/X11/rgb.txt \
4240 /usr/X11R6/lib/X11/rgb.txt \
4241 /usr/X11R5/lib/X11/rgb.txt \
4242 /usr/X11R4/lib/X11/rgb.txt \
4243 /usr/local/lib/X11/rgb.txt \
4244 /usr/local/share/X11/rgb.txt \
4245 /usr/lib64/X11/rgb.txt
4247 if test -f "$cf_path" ; then
4254 CF_PATH_SYNTAX(cf_path)
4257 AC_MSG_RESULT($RGB_PATH)
4259 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4262 if test "$RGB_PATH" = no
4266 AC_SUBST(no_x11_rgb)
4268 dnl ---------------------------------------------------------------------------
4269 dnl CF_XOPEN_CURSES version: 17 updated: 2021/07/10 12:22:27
4271 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4272 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4274 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4275 dnl as getbegy(). The latter is better design, but the former is standard.
4276 AC_DEFUN([CF_XOPEN_CURSES],
4278 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4279 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4280 cf_cv_need_xopen_extension=unknown
4283 #include <${cf_cv_ncurses_header:-curses.h}>],[
4284 #if defined(NCURSES_VERSION_PATCH)
4285 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4289 #ifdef NCURSES_WIDECHAR
4290 make an error /* prefer to fall-through on the second checks */
4293 int check2 = curs_set((int)sizeof(check));
4294 long x = winnstr(stdscr, "", 0);
4297 getbegyx(stdscr, y1, x1);
4302 [cf_cv_need_xopen_extension=none],
4304 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4307 #define $cf_try_xopen_extension 1
4309 #include <${cf_cv_ncurses_header:-curses.h}>],[
4311 int check2 = curs_set((int)sizeof(check));
4312 long x = winnstr(stdscr, "", 0);
4314 getbegyx(stdscr, y1, x1);
4320 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4325 case "$cf_cv_need_xopen_extension" in
4327 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4332 dnl ---------------------------------------------------------------------------
4333 dnl CF_XOPEN_SOURCE version: 59 updated: 2021/08/28 15:20:37
4335 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4336 dnl or adapt to the vendor's definitions to get equivalent functionality,
4337 dnl without losing the common non-POSIX features.
4340 dnl $1 is the nominal value for _XOPEN_SOURCE
4341 dnl $2 is the nominal value for _POSIX_C_SOURCE
4342 AC_DEFUN([CF_XOPEN_SOURCE],[
4343 AC_REQUIRE([AC_CANONICAL_HOST])
4344 AC_REQUIRE([CF_POSIX_VISIBLE])
4346 if test "$cf_cv_posix_visible" = no; then
4348 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4349 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4354 cf_xopen_source="-D_ALL_SOURCE"
4360 cf_xopen_source="-D_APPLE_C_SOURCE"
4363 cf_xopen_source="-D_DARWIN_C_SOURCE"
4366 (freebsd*|dragonfly*|midnightbsd*)
4367 # 5.x headers associate
4368 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4369 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4370 cf_POSIX_C_SOURCE=200112L
4372 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4375 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4378 cf_xopen_source="-D_HPUX_SOURCE"
4381 cf_xopen_source="-D_SGI_SOURCE"
4384 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4385 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4388 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4391 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4393 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4396 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4399 # OpenBSD 6.x has broken locale support, both compile-time and runtime.
4400 # see https://www.mail-archive.com/bugs@openbsd.org/msg13200.html
4401 # Abusing the conformance level is a workaround.
4402 AC_MSG_WARN(this system does not provide usable locale support)
4403 cf_xopen_source="-D_BSD_SOURCE"
4407 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4408 cf_xopen_source="-D_BSD_SOURCE"
4412 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4415 cf_xopen_source="-D_OSF_SOURCE"
4418 cf_xopen_source="-D_QNX_SOURCE"
4421 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4424 cf_xopen_source="-D__EXTENSIONS__"
4425 cf_cv_xopen_source=broken
4427 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4433 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4437 if test -n "$cf_xopen_source" ; then
4438 CF_APPEND_CFLAGS($cf_xopen_source,true)
4441 dnl In anything but the default case, we may have system-specific setting
4442 dnl which is still not guaranteed to provide all of the entrypoints that
4443 dnl _XOPEN_SOURCE would yield.
4444 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4445 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4446 AC_TRY_COMPILE([#include <stdlib.h>],[
4447 #ifndef _XOPEN_SOURCE
4450 [cf_XOPEN_SOURCE_set=yes],
4451 [cf_XOPEN_SOURCE_set=no])
4452 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4453 if test "$cf_XOPEN_SOURCE_set" = yes
4455 AC_TRY_COMPILE([#include <stdlib.h>],[
4456 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4459 [cf_XOPEN_SOURCE_set_ok=yes],
4460 [cf_XOPEN_SOURCE_set_ok=no])
4461 if test "$cf_XOPEN_SOURCE_set_ok" = no
4463 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4469 fi # cf_cv_posix_visible
4471 dnl ---------------------------------------------------------------------------
4472 dnl CF_X_ATHENA version: 24 updated: 2020/03/10 18:53:47
4474 dnl Check for Xaw (Athena) libraries
4476 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4477 AC_DEFUN([CF_X_ATHENA],
4479 cf_x_athena=${cf_x_athena:-Xaw}
4481 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4484 [ --with-Xaw3d link with Xaw 3d library])
4485 if test "$withval" = yes ; then
4492 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4494 AC_ARG_WITH(Xaw3dxft,
4495 [ --with-Xaw3dxft link with Xaw 3d xft library])
4496 if test "$withval" = yes ; then
4497 cf_x_athena=Xaw3dxft
4503 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4506 [ --with-neXtaw link with neXT Athena library])
4507 if test "$withval" = yes ; then
4514 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4516 AC_ARG_WITH(XawPlus,
4517 [ --with-XawPlus link with Athena-Plus library])
4518 if test "$withval" = yes ; then
4527 if test "$PKG_CONFIG" != none ; then
4529 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4530 for cf_athena_pkg in \
4533 ${cf_x_athena}-devel \
4535 lib${cf_x_athena}-devel
4537 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4538 cf_x_athena_lib="$cf_pkgconfig_libs"
4539 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4540 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4544 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4546 #include <X11/Xmu/CharSet.h>
4548 int check = XmuCompareISOLatin1("big", "small");
4550 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4552 if test "$cf_cv_xaw_compat" = no
4554 # workaround for broken ".pc" files...
4555 case "$cf_x_athena_lib" in
4559 CF_VERBOSE(work around broken package)
4561 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4562 CF_TRY_PKG_CONFIG(xmu,[
4564 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4566 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4577 if test -z "$cf_x_athena_lib" ; then
4580 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4581 CF_X_ATHENA_LIBS($cf_x_athena)
4584 dnl ---------------------------------------------------------------------------
4585 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4586 dnl --------------------
4587 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4588 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4589 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4591 AC_REQUIRE([AC_PATH_XTRA])
4592 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4595 for cf_path in default \
4596 /usr/contrib/X11R6 \
4597 /usr/contrib/X11R5 \
4601 if test -z "$cf_x_athena_inc" ; then
4602 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4603 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4604 if test "$cf_path" != default ; then
4605 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4606 AC_MSG_CHECKING(for $cf_test in $cf_path)
4608 AC_MSG_CHECKING(for $cf_test)
4611 #include <X11/Intrinsic.h>
4612 #include <$cf_test>],[],
4615 AC_MSG_RESULT($cf_result)
4616 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4617 if test "$cf_result" = yes ; then
4618 test "$cf_path" = default && cf_x_athena_inc=default
4619 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4625 if test -z "$cf_x_athena_inc" ; then
4626 AC_MSG_WARN([Unable to find Athena header files])
4627 elif test "$cf_x_athena_inc" != default ; then
4628 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4631 dnl ---------------------------------------------------------------------------
4632 dnl CF_X_ATHENA_LIBS version: 13 updated: 2020/01/11 18:16:10
4633 dnl ----------------
4634 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4635 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4636 AC_DEFUN([CF_X_ATHENA_LIBS],
4637 [AC_REQUIRE([CF_X_TOOLKIT])
4638 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4641 for cf_path in default \
4642 /usr/contrib/X11R6 \
4643 /usr/contrib/X11R5 \
4648 ${cf_x_athena_root} \
4649 ${cf_x_athena_root}7 \
4650 ${cf_x_athena_root}6
4654 "-l$cf_lib -lXpm -lXmu" \
4655 "-l${cf_lib}_s -lXmu_s"
4657 test -n "$cf_x_athena_lib" && break
4659 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4660 cf_test=XawSimpleMenuAddGlobalActions
4661 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4662 CF_ADD_LIBS($cf_libs)
4663 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4665 #include <X11/Intrinsic.h>
4666 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4668 $cf_test((XtAppContext) 0)],
4671 AC_MSG_RESULT($cf_result)
4672 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4674 if test "$cf_result" = yes ; then
4675 cf_x_athena_lib="$cf_libs"
4679 test -n "$cf_x_athena_lib" && break
4683 if test -z "$cf_x_athena_lib" ; then
4685 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4688 CF_ADD_LIBS($cf_x_athena_lib)
4689 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4690 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4692 dnl ---------------------------------------------------------------------------
4693 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4695 AC_DEFUN([CF_X_EXT],[
4696 CF_TRY_PKG_CONFIG(Xext,,[
4697 AC_CHECK_LIB(Xext,XextCreateExtension,
4698 [CF_ADD_LIB(Xext)])])
4700 dnl ---------------------------------------------------------------------------
4701 dnl CF_X_TOOLKIT version: 26 updated: 2021/01/02 09:31:20
4703 dnl Check for X Toolkit libraries
4704 AC_DEFUN([CF_X_TOOLKIT],
4706 AC_REQUIRE([AC_PATH_XTRA])
4707 AC_REQUIRE([CF_CHECK_CACHE])
4709 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4710 # in some cases has installed dummy files in the former, other cases replaced
4711 # it with a link to the new location). This complicates the configure script.
4712 # Check for that pitfall, and recover using pkg-config
4714 # If none of these are set, the configuration is almost certainly broken.
4715 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4717 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4718 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4719 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4720 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4722 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4727 CF_TRY_PKG_CONFIG(xt,[
4733 # we have an "xt" package, but it may omit Xt's dependency on X11
4734 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4736 #include <X11/Xlib.h>
4738 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4739 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4740 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4741 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4742 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4743 if test "$cf_cv_xt_x11_compat" = no
4745 CF_VERBOSE(work around broken X11 dependency)
4746 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4747 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4752 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4754 #include <X11/Shell.h>
4755 ],[int num = IceConnectionNumber(0); (void) num
4756 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4758 if test "$cf_cv_xt_ice_compat" = no
4760 # workaround for broken ".pc" files used for X Toolkit.
4761 case "x$X_PRE_LIBS" in
4767 CF_VERBOSE(work around broken ICE dependency)
4768 CF_TRY_PKG_CONFIG(ice,
4769 [CF_TRY_PKG_CONFIG(sm)],
4770 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4780 LDFLAGS="$X_LIBS $LDFLAGS"
4781 CF_CHECK_CFLAGS($X_CFLAGS)
4783 AC_CHECK_FUNC(XOpenDisplay,,[
4784 AC_CHECK_LIB(X11,XOpenDisplay,
4785 [CF_ADD_LIB(X11)])])
4787 AC_CHECK_FUNC(XtAppInitialize,,[
4788 AC_CHECK_LIB(Xt, XtAppInitialize,
4789 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4791 LIBS="-lXt $LIBS"])])
4794 if test "$cf_have_X_LIBS" = no ; then
4796 [Unable to successfully link X Toolkit library (-lXt) with
4797 test program. You will have to check and add the proper libraries by hand
4801 dnl ---------------------------------------------------------------------------
4802 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4804 dnl Attempt to make a copy of a curses data item. This is needed in the
4805 dnl check-data configure tests when using ncurses, because the symbol may be
4806 dnl actually a function return-value. That could happen if the linker is
4807 dnl broken (does not resolve data-only references), or if ncurses is configured
4808 dnl to support re-entrant code.
4811 define([CF__CURSES_DATA],[
4812 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4813 const void *$1 = (const void *)($2);
4815 const void *$1 = &($2);
4817 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4819 dnl ---------------------------------------------------------------------------
4820 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4822 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4823 dnl are both available.
4824 define([CF__CURSES_HEAD],[
4826 #include <xcurses.h>
4827 char * XCursesProgramName = "test";
4829 #include <${cf_cv_ncurses_header:-curses.h}>
4830 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4831 #include <ncursesw/term.h>
4832 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4833 #include <ncurses/term.h>
4834 #elif defined(HAVE_TERM_H)