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 1.191 2021/03/20 16:33:11 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: 16 updated: 2020/12/31 20:19:42
186 dnl Add an include-directory to $CPPFLAGS. Don't add /usr/include, since it's
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/$2"
347 dnl ---------------------------------------------------------------------------
348 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
350 dnl use this macro for appending text without introducing an extra blank at
352 define([CF_APPEND_TEXT],
354 test -n "[$]$1" && $1="[$]$1 "
357 dnl ---------------------------------------------------------------------------
358 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
360 dnl Allow user to disable a normally-on option.
361 AC_DEFUN([CF_ARG_DISABLE],
362 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
363 dnl ---------------------------------------------------------------------------
364 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
366 dnl Allow user to enable a normally-off option.
367 AC_DEFUN([CF_ARG_ENABLE],
368 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
369 dnl ---------------------------------------------------------------------------
370 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
372 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
378 dnl $3 = action to perform if option is not default
379 dnl $4 = action if perform if option is default
380 dnl $5 = default option value (either 'yes' or 'no')
381 AC_DEFUN([CF_ARG_OPTION],
382 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
383 if test "$enableval" != "$5" ; then
385 ,[ $3]) ifelse([$4],,,[
388 fi],[enableval=$5 ifelse([$4],,,[
392 dnl ---------------------------------------------------------------------------
393 dnl CF_C11_NORETURN version: 1 updated: 2021/03/20 12:00:25
395 AC_DEFUN([CF_C11_NORETURN],
397 AC_CACHE_CHECK([for C11 _Noreturn feature], cf_cv_c11_noreturn,
401 #include <stdnoreturn.h>
402 static void giveup(void) { exit(0); }
404 [if (feof(stdin)) giveup()],
405 cf_cv_c11_noreturn=yes,
406 cf_cv_c11_noreturn=no)
409 if test "$cf_cv_c11_noreturn" = yes; then
410 AC_DEFINE(HAVE_STDNORETURN_H, 1)
411 AC_DEFINE_UNQUOTED(STDC_NORETURN,_Noreturn,[Define if C11 _Noreturn keyword is supported])
417 AC_SUBST(HAVE_STDNORETURN_H)
419 dnl ---------------------------------------------------------------------------
420 dnl CF_CC_ENV_FLAGS version: 10 updated: 2020/12/31 18:40:20
422 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
423 dnl into CC. This will not help with broken scripts that wrap the compiler
424 dnl with options, but eliminates a more common category of user confusion.
426 dnl In particular, it addresses the problem of being able to run the C
427 dnl preprocessor in a consistent manner.
429 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
430 dnl the nuisance of having inconsistent settings for compiler and preprocessor
431 dnl outweighs that limitation.
432 AC_DEFUN([CF_CC_ENV_FLAGS],
434 # This should have been defined by AC_PROG_CC
437 AC_MSG_CHECKING(\$CFLAGS variable)
440 AC_MSG_RESULT(broken)
441 AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
444 for cf_arg in $cf_flags
446 CF_ADD_CFLAGS($cf_arg)
454 AC_MSG_CHECKING(\$CC variable)
457 AC_MSG_RESULT(broken)
458 AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
460 cf_prog=`echo "$CC" | sed -e 's/ / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
461 cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
463 for cf_arg in $cf_flags
467 CF_ADD_CFLAGS($cf_arg)
474 CF_VERBOSE(resulting CC: '$CC')
475 CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
476 CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
483 dnl ---------------------------------------------------------------------------
484 dnl CF_CHECK_CACHE version: 13 updated: 2020/12/31 10:54:15
486 dnl Check if we're accidentally using a cache from a different machine.
487 dnl Derive the system name, as a check for reusing the autoconf cache.
489 dnl If we've packaged config.guess and config.sub, run that (since it does a
490 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
491 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
492 dnl which is useful in cross-compiles.
494 dnl Note: we would use $ac_config_sub, but that is one of the places where
495 dnl autoconf 2.5x broke compatibility with autoconf 2.13
496 AC_DEFUN([CF_CHECK_CACHE],
498 if test -f "$srcdir/config.guess" || test -f "$ac_aux_dir/config.guess" ; then
499 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
500 system_name="$host_os"
502 system_name="`(uname -s -r) 2>/dev/null`"
503 if test -z "$system_name" ; then
504 system_name="`(hostname) 2>/dev/null`"
507 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
508 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
510 test -z "$system_name" && system_name="$cf_cv_system_name"
511 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
513 if test ".$system_name" != ".$cf_cv_system_name" ; then
514 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
515 AC_MSG_ERROR("Please remove config.cache and try again.")
518 dnl ---------------------------------------------------------------------------
519 dnl CF_CHECK_CFLAGS version: 4 updated: 2021/01/02 19:22:58
521 dnl Conditionally add to $CFLAGS and $CPPFLAGS values which are derived from
522 dnl a build-configuration such as imake. These have the pitfall that they
523 dnl often contain compiler-specific options which we cannot use, mixed with
524 dnl preprocessor options that we usually can.
525 AC_DEFUN([CF_CHECK_CFLAGS],
527 CF_VERBOSE(checking additions to CFLAGS)
528 cf_check_cflags="$CFLAGS"
529 cf_check_cppflags="$CPPFLAGS"
530 CF_ADD_CFLAGS($1,yes)
531 if test "x$cf_check_cflags" != "x$CFLAGS" ; then
532 AC_TRY_LINK([#include <stdio.h>],[printf("Hello world");],,
533 [CF_VERBOSE(test-compile failed. Undoing change to \$CFLAGS)
534 if test "x$cf_check_cppflags" != "x$CPPFLAGS" ; then
535 CF_VERBOSE(but keeping change to \$CPPFLAGS)
537 CFLAGS="$cf_check_cflags"])
540 dnl ---------------------------------------------------------------------------
541 dnl CF_CHECK_CURSES_LIB version: 3 updated: 2021/01/04 19:45:09
542 dnl -------------------
543 dnl $1 = nominal library name, used also for header lookup
544 dnl $2 = suffix to append to library name
545 dnl $3 = function to check for using AC_CHECK_LIB
546 dnl $4 = optional parameter list for $3
547 AC_DEFUN([CF_CHECK_CURSES_LIB],
549 AC_REQUIRE([CF_PKG_CONFIG])
551 cf_have_curses_lib=no
553 : ${NCURSES_CONFIG_PKG:=none}
554 if test "x${NCURSES_CONFIG_PKG}" = xnone; then
556 elif test "x${PKG_CONFIG:=none}" != xnone; then
557 AC_MSG_CHECKING(pkg-config for $1$2)
558 if "$PKG_CONFIG" --exists "$1$2" ; then
561 AC_MSG_CHECKING(if the $1$2 package files work)
563 cf_save_CPPFLAGS="$CPPFLAGS"
566 CF_ADD_CFLAGS(`$PKG_CONFIG --cflags "$1$2"`)
567 CF_ADD_LIBS(`$PKG_CONFIG --libs "$1$2"`)
569 AC_TRY_LINK([#include <$1.h>],
570 [(void) $3 ( ]ifelse([$4],,,[[$4]])[ );],
571 [AC_TRY_RUN([#include <$1.h>
573 { (void) $3 ( ]ifelse([$4],,,[[$4]])[ ); return 0; }],
574 [cf_have_curses_lib=yes],
575 [cf_have_curses_lib=no],
576 [cf_have_curses_lib=maybe])],
577 [cf_have_curses_lib=no])
578 AC_MSG_RESULT($cf_have_curses_lib)
579 test "$cf_have_curses_lib" = maybe && cf_have_curses_lib=yes
580 if test "$cf_have_curses_lib" != "yes"
582 CPPFLAGS="$cf_save_CPPFLAGS"
585 CF_UPPER(cf_upper,have_lib$1)
586 AC_DEFINE_UNQUOTED($cf_upper,1)
590 if test "$cf_have_curses_lib" = no; then
591 AC_CHECK_LIB($1$2,$3,[
592 CF_UPPER(cf_upper,have_lib$1)
594 AC_DEFINE_UNQUOTED($cf_upper,1)])
597 dnl ---------------------------------------------------------------------------
598 dnl CF_CLANG_COMPILER version: 8 updated: 2021/01/01 13:31:04
599 dnl -----------------
600 dnl Check if the given compiler is really clang. clang's C driver defines
601 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
602 dnl not ignore some gcc options.
604 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
605 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
606 dnl the wrappers for gcc and g++ warnings.
608 dnl $1 = GCC (default) or GXX
609 dnl $2 = CLANG_COMPILER (default)
610 dnl $3 = CFLAGS (default) or CXXFLAGS
611 AC_DEFUN([CF_CLANG_COMPILER],[
612 ifelse([$2],,CLANG_COMPILER,[$2])=no
614 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
615 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
616 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
622 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
624 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
625 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
630 if test "x$ifelse([$2],,CLANG_COMPILER,[$2])" = "xyes" ; then
632 (c[[1-9]][[0-9]]|*/c[[1-9]][[0-9]])
633 AC_MSG_WARN(replacing broken compiler alias $CC)
634 CFLAGS="$CFLAGS -std=`echo "$CC" | sed -e 's%.*/%%'`"
639 AC_MSG_CHECKING(version of $CC)
640 CLANG_VERSION="`$CC --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(CLANG[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
641 test -z "$CLANG_VERSION" && CLANG_VERSION=unknown
642 AC_MSG_RESULT($CLANG_VERSION)
644 for cf_clang_opt in \
646 -Wno-error=implicit-function-declaration
648 AC_MSG_CHECKING(if option $cf_clang_opt works)
649 cf_save_CFLAGS="$CFLAGS"
650 CFLAGS="$CFLAGS $cf_clang_opt"
652 #include <stdio.h>],[
653 printf("hello!\\n");],[
654 cf_clang_optok=yes],[
656 AC_MSG_RESULT($cf_clang_optok)
657 CFLAGS="$cf_save_CFLAGS"
658 if test "$cf_clang_optok" = yes; then
659 CF_VERBOSE(adding option $cf_clang_opt)
660 CF_APPEND_TEXT(CFLAGS,$cf_clang_opt)
665 dnl ---------------------------------------------------------------------------
666 dnl CF_CONST_X_STRING version: 6 updated: 2021/01/01 13:31:04
667 dnl -----------------
668 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
669 dnl character-strings.
671 dnl It is ambiguous because the specification accommodated the pre-ANSI
672 dnl compilers bundled by more than one vendor in lieu of providing a standard C
673 dnl compiler other than by costly add-ons. Because of this, the specification
674 dnl did not take into account the use of const for telling the compiler that
675 dnl string literals would be in readonly memory.
677 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
678 dnl let the compiler decide how to represent Xt's strings which were #define'd.
679 dnl That does not solve the problem of using the block of Xt's strings which
680 dnl are compiled into the library (and is less efficient than one might want).
682 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
683 dnl when compiling the library and compiling using the library, to tell the
684 dnl compiler that String is const.
685 AC_DEFUN([CF_CONST_X_STRING],
687 AC_REQUIRE([AC_PATH_XTRA])
689 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
694 #include <X11/Intrinsic.h>
696 [String foo = malloc(1); (void)foo],[
698 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
701 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
702 #undef XTSTRINGDEFINES /* X11R5 and later */
704 #include <X11/Intrinsic.h>
705 ],[String foo = malloc(1); *foo = 0],[
706 cf_cv_const_x_string=no
708 cf_cv_const_x_string=yes
712 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
714 case "$cf_cv_const_x_string" in
716 CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
719 CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
725 dnl ---------------------------------------------------------------------------
726 dnl CF_CURSES_ACS_MAP version: 8 updated: 2021/01/04 19:45:09
727 dnl -----------------
728 dnl Check for likely values of acs_map[]:
729 AC_DEFUN([CF_CURSES_ACS_MAP],
731 AC_REQUIRE([CF_NCURSES_WRAP_PREFIX])dnl
732 AC_CACHE_CHECK(for alternate character set array, cf_cv_curses_acs_map,[
733 cf_cv_curses_acs_map=unknown
734 for name in acs_map _acs_map __acs_map ${NCURSES_WRAP_PREFIX}acs_map
737 #include <${cf_cv_ncurses_header:-curses.h}>
739 ${name}['k'] = ACS_PLUS
740 ],[cf_cv_curses_acs_map=$name; break])
744 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_])
746 dnl ---------------------------------------------------------------------------
747 dnl CF_CURSES_CHECK_DATA version: 10 updated: 2021/01/04 19:45:09
748 dnl --------------------
749 dnl Check if curses.h defines the given data/variable.
750 dnl Use this after CF_NCURSES_CONFIG or CF_CURSES_CONFIG.
752 dnl $1 = data item(s) to check for
753 dnl $2 = action on success, e.g., "break" to quit checking a series of choices
754 AC_DEFUN([CF_CURSES_CHECK_DATA],
758 AC_MSG_CHECKING(for data $cf_data declaration in ${cf_cv_ncurses_header:-curses.h})
760 AC_TRY_COMPILE(CF__CURSES_HEAD,
761 CF__CURSES_DATA(foo,$cf_data)
764 AC_MSG_RESULT($cf_result)
766 if test "$cf_result" = yes ; then
767 CF_UPPER(cf_result,have_curses_data_$cf_data)
768 AC_DEFINE_UNQUOTED($cf_result)
771 AC_MSG_CHECKING(for data $cf_data in library)
772 # BSD linkers insist on making weak linkage, but resolve at runtime.
773 AC_TRY_RUN(CF__CURSES_HEAD
775 extern char $cf_data;
778 ]CF__CURSES_DATA(foo,$cf_data)[
779 ${cf_cv_main_return:-return}(foo == 0);
783 AC_TRY_LINK(CF__CURSES_HEAD
784 [extern char $cf_data;],[
786 ]CF__CURSES_DATA(foo,$cf_data)[
787 ${cf_cv_main_return:-return}(foo == 0);
789 ],[cf_result=yes],[cf_result=no])
791 AC_MSG_RESULT($cf_result)
792 if test "$cf_result" = yes ; then
793 CF_UPPER(cf_result,decl_curses_data_$cf_data)
794 AC_DEFINE_UNQUOTED($cf_result)
795 # do not exit loop here, since we prefer system's declarations
800 dnl ---------------------------------------------------------------------------
801 dnl CF_CURSES_CHECK_TYPE version: 5 updated: 2021/01/04 19:45:09
802 dnl --------------------
803 dnl Check if curses.h defines the given type
804 AC_DEFUN([CF_CURSES_CHECK_TYPE],
806 AC_MSG_CHECKING(for type $1 in ${cf_cv_ncurses_header:-curses.h})
808 #ifndef _XOPEN_SOURCE_EXTENDED
809 #define _XOPEN_SOURCE_EXTENDED
811 #include <${cf_cv_ncurses_header:-curses.h}>],[
813 ],cf_result=yes,cf_result=no)
814 AC_MSG_RESULT($cf_result)
815 if test "$cf_result" = yes ; then
816 CF_UPPER(cf_result,have_type_$1)
817 AC_DEFINE_UNQUOTED($cf_result,1,[Define to 1 if we have type $1])
819 AC_DEFINE_UNQUOTED($1,$2,[Define to appropriate type if $1 is not declared])
822 dnl ---------------------------------------------------------------------------
823 dnl CF_CURSES_CONFIG version: 2 updated: 2006/10/29 11:06:27
825 dnl Tie together the configure-script macros for curses. It may be ncurses,
826 dnl but unless asked, we do not make a special search for ncurses. However,
827 dnl still check for the ncurses version number, for use in other macros.
828 AC_DEFUN([CF_CURSES_CONFIG],
834 dnl ---------------------------------------------------------------------------
835 dnl CF_CURSES_CPPFLAGS version: 14 updated: 2021/01/02 09:31:20
836 dnl ------------------
837 dnl Look for the curses headers.
838 AC_DEFUN([CF_CURSES_CPPFLAGS],[
840 AC_CACHE_CHECK(for extra include directories,cf_cv_curses_incdir,[
841 cf_cv_curses_incdir=no
844 if test "x$cf_cv_screen" = "xcurses_colr"
846 test -d /usr/include/curses_colr && \
847 cf_cv_curses_incdir="-I/usr/include/curses_colr"
851 if test "x$cf_cv_screen" = "xcurses_5lib"
853 test -d /usr/5lib && \
854 test -d /usr/5include && \
855 cf_cv_curses_incdir="-I/usr/5include"
860 if test "$cf_cv_curses_incdir" != no
862 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_curses_incdir)
868 dnl ---------------------------------------------------------------------------
869 dnl CF_CURSES_FUNCS version: 20 updated: 2020/12/31 20:19:42
871 dnl Curses-functions are a little complicated, since a lot of them are macros.
872 AC_DEFUN([CF_CURSES_FUNCS],
874 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
875 AC_REQUIRE([CF_XOPEN_CURSES])
876 AC_REQUIRE([CF_CURSES_TERM_H])
877 AC_REQUIRE([CF_CURSES_UNCTRL_H])
880 CF_UPPER(cf_tr_func,$cf_func)
881 AC_MSG_CHECKING(for ${cf_func})
882 CF_MSG_LOG(${cf_func})
883 AC_CACHE_VAL(cf_cv_func_$cf_func,[
884 eval cf_result='$ac_cv_func_'$cf_func
885 if test ".$cf_result" != ".no"; then
886 AC_TRY_LINK(CF__CURSES_HEAD,
889 long foo = (long)(&${cf_func});
890 fprintf(stderr, "testing linkage of $cf_func:%p\\n", (void *)foo);
891 if (foo + 1234L > 5678L)
892 ${cf_cv_main_return:-return}(foo != 0);
898 eval 'cf_cv_func_'$cf_func'="$cf_result"'
900 # use the computed/retrieved cache-value:
901 eval 'cf_result=$cf_cv_func_'$cf_func
902 AC_MSG_RESULT($cf_result)
903 if test "$cf_result" != no; then
904 AC_DEFINE_UNQUOTED(HAVE_${cf_tr_func})
908 dnl ---------------------------------------------------------------------------
909 dnl CF_CURSES_HEADER version: 5 updated: 2015/04/23 20:35:30
911 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
912 dnl variations of ncurses' installs.
914 dnl $1 = ncurses when looking for ncurses, or is empty
915 AC_DEFUN([CF_CURSES_HEADER],[
916 AC_CACHE_CHECK(if we have identified curses headers,cf_cv_ncurses_header,[
917 cf_cv_ncurses_header=none
919 ncurses.h ifelse($1,,,[$1/ncurses.h]) \
920 curses.h ifelse($1,,,[$1/curses.h]) ifelse($1,,[ncurses/ncurses.h ncurses/curses.h])
922 AC_TRY_COMPILE([#include <${cf_header}>],
923 [initscr(); tgoto("?", 0,0)],
924 [cf_cv_ncurses_header=$cf_header; break],[])
928 if test "$cf_cv_ncurses_header" = none ; then
929 AC_MSG_ERROR(No curses header-files found)
932 # cheat, to get the right #define's for HAVE_NCURSES_H, etc.
933 AC_CHECK_HEADERS($cf_cv_ncurses_header)
935 dnl ---------------------------------------------------------------------------
936 dnl CF_CURSES_LIBS version: 44 updated: 2021/01/02 09:31:20
938 dnl Look for the curses libraries. Older curses implementations may require
939 dnl termcap/termlib to be linked as well. Call CF_CURSES_CPPFLAGS first.
940 AC_DEFUN([CF_CURSES_LIBS],[
942 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
943 AC_MSG_CHECKING(if we have identified curses libraries)
944 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
945 [initscr(); tgoto("?", 0,0)],
948 AC_MSG_RESULT($cf_result)
950 if test "$cf_result" = no ; then
953 AC_CHECK_LIB(mytinfo,tgoto,[CF_ADD_LIBS(-lmytinfo)])
956 # Looking at HPUX 10.20, the Hcurses library is the oldest (1997), cur_colr
957 # next (1998), and xcurses "newer" (2000). There is no header file for
958 # Hcurses; the subdirectory curses_colr has the headers (curses.h and
959 # term.h) for cur_colr
960 if test "x$cf_cv_screen" = "xcurses_colr"
962 AC_CHECK_LIB(cur_colr,initscr,[
963 CF_ADD_LIBS(-lcur_colr)
964 ac_cv_func_initscr=yes
966 AC_CHECK_LIB(Hcurses,initscr,[
967 # HP's header uses __HP_CURSES, but user claims _HP_CURSES.
968 CF_ADD_LIBS(-lHcurses)
969 CF_APPEND_TEXT(CPPFLAGS,-D__HP_CURSES -D_HP_CURSES)
970 ac_cv_func_initscr=yes
975 case `arch 2>/dev/null` in
979 CF_ADD_LIBDIR(/lib64)
990 if test "x$cf_cv_screen" = "xcurses_5lib"
992 if test -d /usr/5lib ; then
993 CF_ADD_LIBDIR(/usr/5lib)
994 CF_ADD_LIBS(-lcurses -ltermcap)
997 ac_cv_func_initscr=yes
1001 if test ".$ac_cv_func_initscr" != .yes ; then
1002 cf_save_LIBS="$LIBS"
1004 if test ".${cf_cv_ncurses_version:-no}" != .no
1006 cf_check_list="ncurses curses cursesX"
1008 cf_check_list="cursesX curses ncurses"
1011 # Check for library containing tgoto. Do this before curses library
1012 # because it may be needed to link the test-case for initscr.
1013 if test "x$cf_term_lib" = x
1015 AC_CHECK_FUNC(tgoto,[cf_term_lib=predefined],[
1016 for cf_term_lib in $cf_check_list otermcap termcap tinfo termlib unknown
1018 AC_CHECK_LIB($cf_term_lib,tgoto,[
1019 : "${cf_nculib_root:=$cf_term_lib}"
1026 # Check for library containing initscr
1027 test "$cf_term_lib" != predefined && test "$cf_term_lib" != unknown && LIBS="-l$cf_term_lib $cf_save_LIBS"
1028 if test "x$cf_curs_lib" = x
1030 for cf_curs_lib in $cf_check_list xcurses jcurses pdcurses unknown
1032 LIBS="-l$cf_curs_lib $cf_save_LIBS"
1033 if test "$cf_term_lib" = unknown || test "$cf_term_lib" = "$cf_curs_lib" ; then
1034 AC_MSG_CHECKING(if we can link with $cf_curs_lib library)
1035 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1039 AC_MSG_RESULT($cf_result)
1040 test "$cf_result" = yes && break
1041 elif test "$cf_curs_lib" = "$cf_term_lib" ; then
1043 elif test "$cf_term_lib" != predefined ; then
1044 AC_MSG_CHECKING(if we need both $cf_curs_lib and $cf_term_lib libraries)
1045 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1046 [initscr(); tgoto((char *)0, 0, 0);],
1049 LIBS="-l$cf_curs_lib -l$cf_term_lib $cf_save_LIBS"
1050 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
1055 AC_MSG_RESULT($cf_result)
1056 test "$cf_result" != error && break
1060 test "$cf_curs_lib" = unknown && AC_MSG_ERROR(no curses library found)
1065 dnl ---------------------------------------------------------------------------
1066 dnl CF_CURSES_TERM_H version: 15 updated: 2021/01/02 09:31:20
1067 dnl ----------------
1068 dnl SVr4 curses should have term.h as well (where it puts the definitions of
1069 dnl the low-level interface). This may not be true in old/broken implementations,
1070 dnl as well as in misconfigured systems (e.g., gcc configured for Solaris 2.4
1071 dnl running with Solaris 2.5.1).
1072 AC_DEFUN([CF_CURSES_TERM_H],
1074 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1076 AC_CACHE_CHECK(for term.h, cf_cv_term_header,[
1078 # If we found <ncurses/curses.h>, look for <ncurses/term.h>, but always look
1079 # for <term.h> if we do not find the variant.
1081 cf_header_list="term.h ncurses/term.h ncursesw/term.h"
1083 case "${cf_cv_ncurses_header:-curses.h}" in
1085 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`term.h
1086 cf_header_list="$cf_header_item $cf_header_list"
1090 for cf_header in $cf_header_list
1093 #include <${cf_cv_ncurses_header:-curses.h}>
1094 #include <${cf_header}>],
1095 [WINDOW *x; (void)x],
1096 [cf_cv_term_header=$cf_header
1098 [cf_cv_term_header=no])
1101 case "$cf_cv_term_header" in
1103 # If curses is ncurses, some packagers still mess it up by trying to make
1104 # us use GNU termcap. This handles the most common case.
1105 for cf_header in ncurses/term.h ncursesw/term.h
1108 #include <${cf_cv_ncurses_header:-curses.h}>
1109 #ifdef NCURSES_VERSION
1110 #include <${cf_header}>
1114 [WINDOW *x; (void)x],
1115 [cf_cv_term_header=$cf_header
1117 [cf_cv_term_header=no])
1123 case "$cf_cv_term_header" in
1125 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
1128 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
1131 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
1135 dnl ---------------------------------------------------------------------------
1136 dnl CF_CURSES_UNCTRL_H version: 8 updated: 2021/01/02 09:31:20
1137 dnl ------------------
1138 dnl Any X/Open curses implementation must have unctrl.h, but ncurses packages
1139 dnl may put it in a subdirectory (along with ncurses' other headers, of
1140 dnl course). Packages which put the headers in inconsistent locations are
1142 AC_DEFUN([CF_CURSES_UNCTRL_H],
1144 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
1146 AC_CACHE_CHECK(for unctrl.h, cf_cv_unctrl_header,[
1148 # If we found <ncurses/curses.h>, look for <ncurses/unctrl.h>, but always look
1149 # for <unctrl.h> if we do not find the variant.
1151 cf_header_list="unctrl.h ncurses/unctrl.h ncursesw/unctrl.h"
1153 case "${cf_cv_ncurses_header:-curses.h}" in
1155 cf_header_item=`echo "${cf_cv_ncurses_header:-curses.h}" | sed -e 's%\..*%%' -e 's%/.*%/%'`unctrl.h
1156 cf_header_list="$cf_header_item $cf_header_list"
1160 for cf_header in $cf_header_list
1163 #include <${cf_cv_ncurses_header:-curses.h}>
1164 #include <${cf_header}>],
1165 [WINDOW *x; (void)x],
1166 [cf_cv_unctrl_header=$cf_header
1168 [cf_cv_unctrl_header=no])
1172 case "$cf_cv_unctrl_header" in
1174 AC_MSG_WARN(unctrl.h header not found)
1178 case "$cf_cv_unctrl_header" in
1180 AC_DEFINE(HAVE_UNCTRL_H,1,[Define to 1 if we have unctrl.h])
1183 AC_DEFINE(HAVE_NCURSES_UNCTRL_H,1,[Define to 1 if we have ncurses/unctrl.h])
1186 AC_DEFINE(HAVE_NCURSESW_UNCTRL_H,1,[Define to 1 if we have ncursesw/unctrl.h])
1190 dnl ---------------------------------------------------------------------------
1191 dnl CF_CURSES_WACS_MAP version: 8 updated: 2021/01/04 19:45:09
1192 dnl ------------------
1193 dnl Check for likely values of wacs_map[].
1194 AC_DEFUN([CF_CURSES_WACS_MAP],
1196 AC_CACHE_CHECK(for wide alternate character set array, cf_cv_curses_wacs_map,[
1197 cf_cv_curses_wacs_map=unknown
1198 for name in wacs_map _wacs_map __wacs_map _nc_wacs _wacs_char
1201 #ifndef _XOPEN_SOURCE_EXTENDED
1202 #define _XOPEN_SOURCE_EXTENDED
1204 #include <${cf_cv_ncurses_header:-curses.h}>],
1205 [void *foo = &(${name}['k']); (void)foo],
1206 [cf_cv_curses_wacs_map=$name
1210 test "$cf_cv_curses_wacs_map" != unknown && AC_DEFINE_UNQUOTED(CURSES_WACS_ARRAY,$cf_cv_curses_wacs_map,[Define to name of (n)curses wide-character array])
1212 dnl ---------------------------------------------------------------------------
1213 dnl CF_CURSES_WACS_SYMBOLS version: 4 updated: 2021/01/04 19:45:09
1214 dnl ----------------------
1215 dnl Do a check to see if the WACS_xxx constants are defined compatibly with
1216 dnl X/Open Curses. In particular, NetBSD's implementation of the WACS_xxx
1217 dnl constants is broken since those constants do not point to cchar_t's.
1218 AC_DEFUN([CF_CURSES_WACS_SYMBOLS],
1220 AC_REQUIRE([CF_CURSES_WACS_MAP])
1222 AC_CACHE_CHECK(for wide alternate character constants, cf_cv_curses_wacs_symbols,[
1223 cf_cv_curses_wacs_symbols=no
1224 if test "$cf_cv_curses_wacs_map" != unknown
1227 #ifndef _XOPEN_SOURCE_EXTENDED
1228 #define _XOPEN_SOURCE_EXTENDED
1230 #include <${cf_cv_ncurses_header:-curses.h}>],
1231 [cchar_t *foo = WACS_PLUS;
1232 ${cf_cv_curses_wacs_map}['k'] = *WACS_PLUS; (void)foo],
1233 [cf_cv_curses_wacs_symbols=yes])
1236 #ifndef _XOPEN_SOURCE_EXTENDED
1237 #define _XOPEN_SOURCE_EXTENDED
1239 #include <${cf_cv_ncurses_header:-curses.h}>],
1240 [cchar_t *foo = WACS_PLUS; (void)foo],
1241 [cf_cv_curses_wacs_symbols=yes])
1245 test "$cf_cv_curses_wacs_symbols" != no && AC_DEFINE(CURSES_WACS_SYMBOLS,1,[Define to 1 if (n)curses supports wide-character WACS_ symbols])
1247 dnl ---------------------------------------------------------------------------
1248 dnl CF_DIRNAME version: 5 updated: 2020/12/31 20:19:42
1250 dnl "dirname" is not portable, so we fake it with a shell script.
1251 AC_DEFUN([CF_DIRNAME],[$1=`echo "$2" | sed -e 's%/[[^/]]*$%%'`])dnl
1252 dnl ---------------------------------------------------------------------------
1253 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
1255 dnl You can always use "make -n" to see the actual options, but it's hard to
1256 dnl pick out/analyze warning messages when the compile-line is long.
1259 dnl ECHO_LT - symbol to control if libtool is verbose
1260 dnl ECHO_LD - symbol to prefix "cc -o" lines
1261 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1262 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
1263 dnl ECHO_CC - symbol to put before any "cc" line
1265 AC_DEFUN([CF_DISABLE_ECHO],[
1266 AC_MSG_CHECKING(if you want to see long compiling messages)
1267 CF_ARG_DISABLE(echo,
1268 [ --disable-echo do not display "compiling" commands],
1271 ECHO_LD='@echo linking [$]@;'
1272 RULE_CC='@echo compiling [$]<'
1273 SHOW_CC='@echo compiling [$]@'
1282 AC_MSG_RESULT($enableval)
1289 dnl ---------------------------------------------------------------------------
1290 dnl CF_DISABLE_LEAKS version: 8 updated: 2021/01/05 20:05:09
1291 dnl ----------------
1292 dnl Combine no-leak checks with the libraries or tools that are used for the
1294 AC_DEFUN([CF_DISABLE_LEAKS],[
1296 AC_REQUIRE([CF_WITH_DMALLOC])
1297 AC_REQUIRE([CF_WITH_DBMALLOC])
1298 AC_REQUIRE([CF_WITH_VALGRIND])
1300 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1301 AC_ARG_ENABLE(leaks,
1302 [ --disable-leaks test: free permanent memory, analyze leaks],
1305 dnl TODO - drop with_no_leaks
1306 if test "x$enable_leaks" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi
1307 AC_MSG_RESULT($with_no_leaks)
1309 if test "$enable_leaks" = no ; then
1310 AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1311 AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1314 dnl ---------------------------------------------------------------------------
1315 dnl CF_DISABLE_RPATH_HACK version: 3 updated: 2021/01/05 20:14:44
1316 dnl ---------------------
1317 dnl The rpath-hack makes it simpler to build programs, particularly with the
1318 dnl *BSD ports which may have essential libraries in unusual places. But it
1319 dnl can interfere with building an executable for the base system. Use this
1320 dnl option in that case.
1321 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1323 AC_MSG_CHECKING(if rpath-hack should be disabled)
1324 CF_ARG_DISABLE(rpath-hack,
1325 [ --disable-rpath-hack don't add rpath options for additional libraries],
1326 [enable_rpath_hack=no],
1327 [enable_rpath_hack=yes])
1328 dnl TODO - drop cf_disable_rpath_hack
1329 if test "x$enable_rpath_hack" = xno; then cf_disable_rpath_hack=yes; else cf_disable_rpath_hack=no; fi
1330 AC_MSG_RESULT($cf_disable_rpath_hack)
1332 if test "$enable_rpath_hack" = yes ; then
1336 dnl ---------------------------------------------------------------------------
1337 dnl CF_ENABLE_STRING_HACKS version: 6 updated: 2021/01/05 19:23:48
1338 dnl ----------------------
1339 dnl On a few platforms, the compiler and/or loader nags with untruthful
1340 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1341 dnl and implying that most uses of the recommended alternatives are correct.
1343 dnl Factually speaking, no one has actually counted the number of uses of these
1344 dnl functions versus the total of incorrect uses. Samples of a few thousand
1345 dnl instances are meaningless compared to the hundreds of millions of lines of
1346 dnl existing C code.
1348 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1349 dnl platforms, in implementations of varying quality. Likewise, snprintf is
1350 dnl standard - but evolved through phases, and older implementations are likely
1351 dnl to yield surprising results, as documented in manpages on various systems.
1352 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1354 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1355 AC_ARG_ENABLE(string-hacks,
1356 [ --enable-string-hacks work around bogus compiler/loader warnings],
1357 [enable_string_hacks=$enableval],
1358 [enable_string_hacks=no])
1359 AC_MSG_RESULT($enable_string_hacks)
1361 if test "x$enable_string_hacks" = "xyes"; then
1362 AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1363 AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1364 AC_CHECK_FUNC(strlcat,[
1365 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1367 AC_CHECK_LIB(bsd,strlcat,[
1369 AC_CHECK_HEADERS(bsd/string.h)
1370 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1373 AC_CHECK_FUNCS( strlcpy snprintf )
1376 dnl ---------------------------------------------------------------------------
1377 dnl CF_ENABLE_WARNINGS version: 9 updated: 2021/01/05 19:40:50
1378 dnl ------------------
1379 dnl Configure-option to enable gcc warnings
1381 dnl $1 = extra options to add, if supported
1382 dnl $2 = option for checking attributes. By default, this is done when
1383 dnl warnings are enabled. For other values:
1384 dnl yes: always do this, e.g., to use in generated library-headers
1385 dnl no: never do this
1386 AC_DEFUN([CF_ENABLE_WARNINGS],[
1387 if test "$GCC" = yes || test "$GXX" = yes
1389 CF_FIX_WARNINGS(CFLAGS)
1390 CF_FIX_WARNINGS(CPPFLAGS)
1391 CF_FIX_WARNINGS(LDFLAGS)
1392 AC_MSG_CHECKING(if you want to turn on gcc warnings)
1393 CF_ARG_ENABLE(warnings,
1394 [ --enable-warnings test: turn on gcc compiler warnings],
1395 [enable_warnings=yes],
1396 [enable_warnings=no])
1397 AC_MSG_RESULT($enable_warnings)
1398 if test "$enable_warnings" = "yes"
1400 ifelse($2,,[CF_GCC_ATTRIBUTES])
1403 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
1406 dnl ---------------------------------------------------------------------------
1407 dnl CF_FIND_LIBRARY version: 11 updated: 2021/01/02 09:31:20
1409 dnl Look for a non-standard library, given parameters for AC_TRY_LINK. We
1410 dnl prefer a standard location, and use -L options only if we do not find the
1411 dnl library in the standard library location(s).
1412 dnl $1 = library name
1413 dnl $2 = library class, usually the same as library name
1415 dnl $4 = code fragment to compile/link
1416 dnl $5 = corresponding function-name
1417 dnl $6 = flag, nonnull if failure should not cause an error-exit
1419 dnl Sets the variable "$cf_libdir" as a side-effect, so we can see if we had
1420 dnl to use a -L option.
1421 AC_DEFUN([CF_FIND_LIBRARY],
1423 eval 'cf_cv_have_lib_'"$1"'=no'
1426 eval 'cf_cv_have_lib_'"$1"'=yes',[
1427 cf_save_LIBS="$LIBS"
1428 AC_MSG_CHECKING(for $5 in -l$1)
1430 AC_TRY_LINK([$3],[$4],
1432 eval 'cf_cv_have_lib_'"$1"'=yes'
1435 CF_LIBRARY_PATH(cf_search,$2)
1436 for cf_libdir in $cf_search
1438 AC_MSG_CHECKING(for -l$1 in $cf_libdir)
1439 LIBS="-L$cf_libdir -l$1 $cf_save_LIBS"
1440 AC_TRY_LINK([$3],[$4],
1442 eval 'cf_cv_have_lib_'"$1"'=yes'
1445 LIBS="$cf_save_LIBS"])
1449 eval 'cf_found_library="[$]cf_cv_have_lib_'"$1"\"
1451 if test "$cf_found_library" = no ; then
1452 AC_MSG_ERROR(Cannot link $1 library)
1456 dnl ---------------------------------------------------------------------------
1457 dnl CF_FIND_LINKAGE version: 22 updated: 2020/12/31 20:19:42
1459 dnl Find a library (specifically the linkage used in the code fragment),
1460 dnl searching for it if it is not already in the library path.
1461 dnl See also CF_ADD_SEARCHPATH.
1463 dnl Parameters (4-on are optional):
1464 dnl $1 = headers for library entrypoint
1465 dnl $2 = code fragment for library entrypoint
1466 dnl $3 = the library name without the "-l" option or ".so" suffix.
1467 dnl $4 = action to perform if successful (default: update CPPFLAGS, etc)
1468 dnl $5 = action to perform if not successful
1469 dnl $6 = module name, if not the same as the library name
1470 dnl $7 = extra libraries
1472 dnl Sets these variables:
1473 dnl $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1474 dnl $cf_cv_header_path_$3 - include-directory if needed
1475 dnl $cf_cv_library_path_$3 - library-directory if needed
1476 dnl $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1477 AC_DEFUN([CF_FIND_LINKAGE],[
1479 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1480 # will be set on completion of the AC_TRY_LINK below.
1481 cf_cv_header_path_$3=
1482 cf_cv_library_path_$3=
1484 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1486 cf_save_LIBS="$LIBS"
1488 AC_TRY_LINK([$1],[$2],[
1489 cf_cv_find_linkage_$3=yes
1490 cf_cv_header_path_$3=/usr/include
1491 cf_cv_library_path_$3=/usr/lib
1494 LIBS="-l$3 $7 $cf_save_LIBS"
1496 AC_TRY_LINK([$1],[$2],[
1497 cf_cv_find_linkage_$3=yes
1498 cf_cv_header_path_$3=/usr/include
1499 cf_cv_library_path_$3=/usr/lib
1500 cf_cv_library_file_$3="-l$3"
1502 cf_cv_find_linkage_$3=no
1503 LIBS="$cf_save_LIBS"
1505 CF_VERBOSE(find linkage for $3 library)
1506 CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1508 cf_save_CPPFLAGS="$CPPFLAGS"
1509 cf_test_CPPFLAGS="$CPPFLAGS"
1511 CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1512 for cf_cv_header_path_$3 in $cf_search
1514 if test -d "$cf_cv_header_path_$3" ; then
1515 CF_VERBOSE(... testing $cf_cv_header_path_$3)
1516 CPPFLAGS="$cf_save_CPPFLAGS"
1517 CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
1518 AC_TRY_COMPILE([$1],[$2],[
1519 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1520 cf_cv_find_linkage_$3=maybe
1521 cf_test_CPPFLAGS="$CPPFLAGS"
1523 CPPFLAGS="$cf_save_CPPFLAGS"
1528 if test "$cf_cv_find_linkage_$3" = maybe ; then
1530 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1532 cf_save_LIBS="$LIBS"
1533 cf_save_LDFLAGS="$LDFLAGS"
1536 CPPFLAGS="$cf_test_CPPFLAGS"
1537 LIBS="-l$3 $7 $cf_save_LIBS"
1538 AC_TRY_LINK([$1],[$2],[
1539 CF_VERBOSE(... found $3 library in system)
1540 cf_cv_find_linkage_$3=yes])
1541 CPPFLAGS="$cf_save_CPPFLAGS"
1542 LIBS="$cf_save_LIBS"
1545 if test "$cf_cv_find_linkage_$3" != yes ; then
1546 CF_LIBRARY_PATH(cf_search,$3)
1547 for cf_cv_library_path_$3 in $cf_search
1549 if test -d "$cf_cv_library_path_$3" ; then
1550 CF_VERBOSE(... testing $cf_cv_library_path_$3)
1551 CPPFLAGS="$cf_test_CPPFLAGS"
1552 LIBS="-l$3 $7 $cf_save_LIBS"
1553 LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1554 AC_TRY_LINK([$1],[$2],[
1555 CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1556 cf_cv_find_linkage_$3=yes
1557 cf_cv_library_file_$3="-l$3"
1559 CPPFLAGS="$cf_save_CPPFLAGS"
1560 LIBS="$cf_save_LIBS"
1561 LDFLAGS="$cf_save_LDFLAGS"
1565 CPPFLAGS="$cf_save_CPPFLAGS"
1566 LDFLAGS="$cf_save_LDFLAGS"
1570 cf_cv_find_linkage_$3=no
1575 LIBS="$cf_save_LIBS"
1577 if test "$cf_cv_find_linkage_$3" = yes ; then
1579 CF_ADD_INCDIR($cf_cv_header_path_$3)
1580 CF_ADD_LIBDIR($cf_cv_library_path_$3)
1584 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1587 dnl ---------------------------------------------------------------------------
1588 dnl CF_FIX_WARNINGS version: 3 updated: 2020/12/31 18:40:20
1590 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc. Any of gcc's
1591 dnl "-Werror" flags can interfere with configure-checks. Those go into
1594 dnl $1 = variable name to repair
1595 define([CF_FIX_WARNINGS],[
1596 if test "$GCC" = yes || test "$GXX" = yes
1600 CF_VERBOSE(repairing $1: [$]$1)
1602 for cf_temp_scan in [$]$1
1604 case "x$cf_temp_scan" in
1606 CF_APPEND_TEXT(EXTRA_CFLAGS,$cf_temp_scan)
1609 CF_APPEND_TEXT(cf_temp_flags,$cf_temp_scan)
1614 CF_VERBOSE(... fixed [$]$1)
1615 CF_VERBOSE(... extra $EXTRA_CFLAGS)
1619 AC_SUBST(EXTRA_CFLAGS)
1621 dnl ---------------------------------------------------------------------------
1622 dnl CF_FUNC_CURSES_VERSION version: 8 updated: 2021/01/02 09:31:20
1623 dnl ----------------------
1624 dnl Solaris has a data item 'curses_version', which confuses AC_CHECK_FUNCS.
1625 dnl It's a character string "SVR4", not documented.
1626 AC_DEFUN([CF_FUNC_CURSES_VERSION],
1628 AC_CACHE_CHECK(for function curses_version, cf_cv_func_curses_version,[
1630 #include <${cf_cv_ncurses_header:-curses.h}>
1634 sprintf(temp, "%s\\n", curses_version());
1635 ${cf_cv_main_return:-return}(0);
1637 ,[cf_cv_func_curses_version=yes]
1638 ,[cf_cv_func_curses_version=no]
1639 ,[cf_cv_func_curses_version=unknown])
1641 test "$cf_cv_func_curses_version" = yes && AC_DEFINE(HAVE_CURSES_VERSION,1,[Define to 1 if we have curses_version function])
1643 dnl ---------------------------------------------------------------------------
1644 dnl CF_FUNC_OPENPTY version: 6 updated: 2021/01/01 13:31:04
1646 dnl Check for openpty() function, along with <pty.h> header. It may need the
1647 dnl "util" library as well.
1648 AC_DEFUN([CF_FUNC_OPENPTY],
1650 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1651 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1652 cf_save_LIBS="$LIBS"
1653 test "$cf_cv_lib_util" = yes && { CF_ADD_LIB(util) }
1654 for cf_header in pty.h libutil.h util.h
1657 #include <$cf_header>
1659 int x = openpty((int *)0, (int *)0, (char *)0,
1660 (struct termios *)0, (struct winsize *)0);
1662 cf_cv_func_openpty=$cf_header
1665 cf_cv_func_openpty=no
1668 LIBS="$cf_save_LIBS"
1671 dnl ---------------------------------------------------------------------------
1672 dnl CF_GCC_ATTRIBUTES version: 24 updated: 2021/03/20 12:00:25
1673 dnl -----------------
1674 dnl Test for availability of useful gcc __attribute__ directives to quiet
1675 dnl compiler warnings. Though useful, not all are supported -- and contrary
1676 dnl to documentation, unrecognized directives cause older compilers to barf.
1677 AC_DEFUN([CF_GCC_ATTRIBUTES],
1678 [AC_REQUIRE([AC_PROG_FGREP])dnl
1679 AC_REQUIRE([CF_C11_NORETURN])dnl
1681 if test "$GCC" = yes || test "$GXX" = yes
1683 cat > conftest.i <<EOF
1685 #define GCC_PRINTF 0
1690 #ifndef GCC_NORETURN
1691 #define GCC_NORETURN /* nothing */
1694 #define GCC_UNUSED /* nothing */
1697 if test "$GCC" = yes
1699 AC_CHECKING([for $CC __attribute__ directives])
1700 cat > "conftest.$ac_ext" <<EOF
1701 #line __oline__ "${as_me:-configure}"
1702 #include "confdefs.h"
1703 #include "conftest.h"
1704 #include "conftest.i"
1706 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
1708 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
1711 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
1713 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
1715 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
1716 extern GCC_NORETURN void oops(char *,...) GCC_PRINTFLIKE(1,2);
1717 extern GCC_NORETURN void foo(void);
1718 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
1720 cf_printf_attribute=no
1721 cf_scanf_attribute=no
1722 for cf_attribute in scanf printf unused noreturn
1724 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
1725 cf_directive="__attribute__(($cf_attribute))"
1726 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
1728 case "$cf_attribute" in
1730 cf_printf_attribute=yes
1731 cat >conftest.h <<EOF
1732 #define GCC_$cf_ATTRIBUTE 1
1736 cf_scanf_attribute=yes
1737 cat >conftest.h <<EOF
1738 #define GCC_$cf_ATTRIBUTE 1
1742 cat >conftest.h <<EOF
1743 #define GCC_$cf_ATTRIBUTE $cf_directive
1748 if AC_TRY_EVAL(ac_compile); then
1749 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
1750 cat conftest.h >>confdefs.h
1751 case "$cf_attribute" in
1753 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
1756 cf_value='/* nothing */'
1757 if test "$cf_printf_attribute" != no ; then
1758 cf_value='__attribute__((format(printf,fmt,var)))'
1759 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
1761 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
1764 cf_value='/* nothing */'
1765 if test "$cf_scanf_attribute" != no ; then
1766 cf_value='__attribute__((format(scanf,fmt,var)))'
1767 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
1769 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
1772 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
1778 ${FGREP-fgrep} define conftest.i >>confdefs.h
1783 dnl ---------------------------------------------------------------------------
1784 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
1786 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
1787 dnl compatible), attempt to determine if icc/clang is actually used.
1788 AC_DEFUN([CF_GCC_VERSION],[
1789 AC_REQUIRE([AC_PROG_CC])
1791 if test "$GCC" = yes ; then
1792 AC_MSG_CHECKING(version of $CC)
1793 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
1794 test -z "$GCC_VERSION" && GCC_VERSION=unknown
1795 AC_MSG_RESULT($GCC_VERSION)
1797 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
1798 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
1800 dnl ---------------------------------------------------------------------------
1801 dnl CF_GCC_WARNINGS version: 41 updated: 2021/01/01 16:53:59
1803 dnl Check if the compiler supports useful warning options. There's a few that
1804 dnl we don't use, simply because they're too noisy:
1806 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
1807 dnl -Winline (usually not worthwhile)
1808 dnl -Wredundant-decls (system headers make this too noisy)
1809 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
1810 dnl -Wwrite-strings (too noisy, but should review occasionally). This
1811 dnl is enabled for ncurses using "--enable-const".
1815 dnl $1 is an optional list of gcc warning flags that a particular
1816 dnl application might want to use, e.g., "no-unused" for
1819 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
1821 AC_DEFUN([CF_GCC_WARNINGS],
1823 AC_REQUIRE([CF_GCC_VERSION])
1824 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
1825 cat > "conftest.$ac_ext" <<EOF
1826 #line __oline__ "${as_me:-configure}"
1827 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
1829 if test "$INTEL_COMPILER" = yes
1831 # The "-wdXXX" options suppress warnings:
1832 # remark #1419: external declaration in primary source file
1833 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
1834 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
1835 # remark #193: zero used for undefined preprocessing identifier
1836 # remark #593: variable "curs_sb_left_arrow" was set but never used
1837 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
1838 # remark #869: parameter "tw" was never referenced
1839 # remark #981: operands are evaluated in unspecified order
1840 # warning #279: controlling expression is constant
1842 AC_CHECKING([for $CC warning options])
1843 cf_save_CFLAGS="$CFLAGS"
1844 EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
1856 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1857 if AC_TRY_EVAL(ac_compile); then
1858 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1859 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1862 CFLAGS="$cf_save_CFLAGS"
1863 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
1865 AC_CHECKING([for $CC warning options])
1866 cf_save_CFLAGS="$CFLAGS"
1868 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
1869 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
1870 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
1871 for cf_opt in W Wall \
1872 Wbad-function-cast \
1875 Wdeclaration-after-statement \
1878 Wmissing-declarations \
1879 Wmissing-prototypes \
1883 Wstrict-prototypes \
1884 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
1886 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
1887 if AC_TRY_EVAL(ac_compile); then
1888 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
1891 case "$GCC_VERSION" in
1893 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1898 case "$GCC_VERSION" in
1900 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
1905 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
1908 CFLAGS="$cf_save_CFLAGS"
1912 AC_SUBST(EXTRA_CFLAGS)
1914 dnl ---------------------------------------------------------------------------
1915 dnl CF_GETOPT_HEADER version: 7 updated: 2021/01/01 13:31:04
1916 dnl ----------------
1917 dnl Check for getopt's variables which are commonly defined in stdlib.h,
1918 dnl unistd.h or (nonstandard) in getopt.h
1919 AC_DEFUN([CF_GETOPT_HEADER],
1921 AC_HAVE_HEADERS(unistd.h getopt.h)
1922 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
1923 cf_cv_getopt_header=none
1924 for cf_header in stdio.h stdlib.h unistd.h getopt.h
1927 #include <$cf_header>],
1928 [int x = optind; char *y = optarg],
1929 [cf_cv_getopt_header=$cf_header
1933 if test "$cf_cv_getopt_header" != none ; then
1934 AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
1936 if test "$cf_cv_getopt_header" = getopt.h ; then
1937 AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
1940 dnl ---------------------------------------------------------------------------
1941 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
1943 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
1944 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
1945 dnl (or misfeature) of glibc2, which breaks portability of many applications,
1946 dnl since it is interwoven with GNU extensions.
1948 dnl Well, yes we could work around it...
1951 dnl $1 is the nominal value for _XOPEN_SOURCE
1952 AC_DEFUN([CF_GNU_SOURCE],
1954 cf_gnu_xopen_source=ifelse($1,,500,$1)
1956 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
1957 AC_TRY_COMPILE([#include <sys/types.h>],[
1958 #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
1960 #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
1963 # error not GNU C library
1965 [cf_cv_gnu_library=yes],
1966 [cf_cv_gnu_library=no])
1969 if test x$cf_cv_gnu_library = xyes; then
1971 # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
1972 # was changed to help a little. newlib incorporated the change about 4
1974 AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
1976 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
1977 AC_TRY_COMPILE([#include <sys/types.h>],[
1978 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
1980 #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
1983 # error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
1985 [cf_cv_gnu_library_219=yes],
1986 [cf_cv_gnu_library_219=no])
1990 if test "x$cf_cv_gnu_library_219" = xyes; then
1992 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
1993 CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
1996 #include <sys/types.h>
1998 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
2001 # error GNU C library is too old
2003 [cf_cv_gnu_dftsrc_219=yes],
2004 [cf_cv_gnu_dftsrc_219=no])
2006 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
2008 cf_cv_gnu_dftsrc_219=maybe
2011 if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
2013 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2014 AC_TRY_COMPILE([#include <sys/types.h>],[
2015 #ifndef _XOPEN_SOURCE
2016 #error expected _XOPEN_SOURCE to be defined
2018 [cf_cv_gnu_source=no],
2019 [cf_save="$CPPFLAGS"
2020 CF_ADD_CFLAGS(-D_GNU_SOURCE)
2021 AC_TRY_COMPILE([#include <sys/types.h>],[
2022 #ifdef _XOPEN_SOURCE
2023 #error expected _XOPEN_SOURCE to be undefined
2025 [cf_cv_gnu_source=no],
2026 [cf_cv_gnu_source=yes])
2031 if test "$cf_cv_gnu_source" = yes
2033 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2034 CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
2035 AC_TRY_COMPILE([#include <sys/types.h>],[
2036 #ifdef _DEFAULT_SOURCE
2037 #error expected _DEFAULT_SOURCE to be undefined
2039 [cf_cv_default_source=no],
2040 [cf_cv_default_source=yes])
2042 if test "$cf_cv_default_source" = yes
2044 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
2051 dnl ---------------------------------------------------------------------------
2052 dnl CF_HEADER_PATH version: 15 updated: 2021/01/01 13:31:04
2054 dnl Construct a search-list of directories for a nonstandard header-file
2057 dnl $1 = the variable to return as result
2058 dnl $2 = the package name
2059 AC_DEFUN([CF_HEADER_PATH],
2063 # collect the current set of include-directories from compiler flags
2064 cf_header_path_list=""
2065 if test -n "${CFLAGS}${CPPFLAGS}" ; then
2066 for cf_header_path in $CPPFLAGS $CFLAGS
2068 case "$cf_header_path" in
2070 cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
2071 CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
2072 cf_header_path_list="$cf_header_path_list [$]$1"
2078 # add the variations for the package we are looking for
2079 CF_SUBDIR_PATH($1,$2,include)
2081 test "$includedir" != NONE && \
2082 test "$includedir" != "/usr/include" && \
2083 test -d "$includedir" && {
2084 test -d "$includedir" && $1="[$]$1 $includedir"
2085 test -d "$includedir/$2" && $1="[$]$1 $includedir/$2"
2088 test "$oldincludedir" != NONE && \
2089 test "$oldincludedir" != "/usr/include" && \
2090 test -d "$oldincludedir" && {
2091 test -d "$oldincludedir" && $1="[$]$1 $oldincludedir"
2092 test -d "$oldincludedir/$2" && $1="[$]$1 $oldincludedir/$2"
2095 $1="[$]$1 $cf_header_path_list"
2097 dnl ---------------------------------------------------------------------------
2098 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
2100 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
2101 AC_DEFUN([CF_HELP_MESSAGE],
2102 [CF_ACVERSION_CHECK(2.53,[],[
2103 AC_DIVERT_HELP($1)])dnl
2105 dnl ---------------------------------------------------------------------------
2106 dnl CF_INHERIT_SCRIPT version: 2 updated: 2003/03/01 23:50:42
2107 dnl -----------------
2108 dnl If we do not have a given script, look for it in the parent directory.
2109 AC_DEFUN([CF_INHERIT_SCRIPT],
2111 test -f $1 || ( test -f ../$1 && cp ../$1 ./ )
2113 dnl ---------------------------------------------------------------------------
2114 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
2116 dnl prompt for/fill-in useful install-program options
2117 AC_DEFUN([CF_INSTALL_OPTS],
2123 dnl ---------------------------------------------------------------------------
2124 dnl CF_INSTALL_OPT_O version: 3 updated: 2020/12/31 20:19:42
2125 dnl ----------------
2126 dnl Almost all "install" programs default to the current user's ownership.
2127 dnl Almost - MINIX is an exception.
2128 AC_DEFUN([CF_INSTALL_OPT_O],
2130 AC_MSG_CHECKING(if install needs to be told about ownership)
2131 case `$ac_config_guess` in
2140 AC_MSG_RESULT($with_install_o)
2141 if test "x$with_install_o" = xyes
2143 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'`"
2148 AC_SUBST(INSTALL_OPT_O)
2150 dnl ---------------------------------------------------------------------------
2151 dnl CF_INSTALL_OPT_P version: 3 updated: 2021/01/01 13:31:04
2152 dnl ----------------
2153 dnl Some install-programs accept a "-p" option to preserve file modification
2154 dnl timestamps. That can be useful as an install option, as well as a way to
2155 dnl avoid the need for ranlib after copying a static archive.
2156 AC_DEFUN([CF_INSTALL_OPT_P],
2158 : "${INSTALL:=install}"
2159 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
2164 if $INSTALL -p conftest.in conftest.out 2>/dev/null
2166 if test -f conftest.out/conftest.in
2168 test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
2169 test conftest.out/conftest.in -nt conftest.in 2>conftest.err
2170 if test -s conftest.err
2185 dnl ---------------------------------------------------------------------------
2186 dnl CF_INSTALL_OPT_S version: 3 updated: 2021/01/05 19:23:48
2187 dnl ----------------
2188 dnl By default, we should strip executables which are installed, but leave the
2189 dnl ability to suppress that for unit-testing.
2190 AC_DEFUN([CF_INSTALL_OPT_S],
2192 AC_MSG_CHECKING(if you want to install stripped executables)
2193 CF_ARG_DISABLE(stripping,
2194 [ --disable-stripping do not strip (debug info) installed executables],
2195 [enable_stripping=no],
2196 [enable_stripping=yes])
2197 AC_MSG_RESULT($enable_stripping)
2199 if test "$enable_stripping" = yes
2205 AC_SUBST(INSTALL_OPT_S)
2207 dnl ---------------------------------------------------------------------------
2208 dnl CF_INTEL_COMPILER version: 8 updated: 2021/01/01 16:53:59
2209 dnl -----------------
2210 dnl Check if the given compiler is really the Intel compiler for Linux. It
2211 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
2212 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
2214 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
2215 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
2216 dnl the wrappers for gcc and g++ warnings.
2218 dnl $1 = GCC (default) or GXX
2219 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
2220 dnl $3 = CFLAGS (default) or CXXFLAGS
2221 AC_DEFUN([CF_INTEL_COMPILER],[
2222 AC_REQUIRE([AC_CANONICAL_HOST])
2223 ifelse([$2],,INTEL_COMPILER,[$2])=no
2225 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
2228 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
2229 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
2230 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
2232 #ifdef __INTEL_COMPILER
2236 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
2237 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
2239 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
2240 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
2245 dnl ---------------------------------------------------------------------------
2246 dnl CF_LD_RPATH_OPT version: 9 updated: 2021/01/01 13:31:04
2248 dnl For the given system and compiler, find the compiler flags to pass to the
2249 dnl loader to use the "rpath" feature.
2250 AC_DEFUN([CF_LD_RPATH_OPT],
2252 AC_REQUIRE([CF_CHECK_CACHE])
2255 if test "x$cf_cv_enable_rpath" != xno
2257 AC_MSG_CHECKING(for an rpath option)
2258 case "$cf_cv_system_name" in
2260 if test "$GCC" = yes; then
2261 LD_RPATH_OPT="-Wl,-rpath,"
2263 LD_RPATH_OPT="-rpath "
2266 (linux*|gnu*|k*bsd*-gnu|freebsd*)
2267 LD_RPATH_OPT="-Wl,-rpath,"
2269 (openbsd[[2-9]].*|mirbsd*)
2270 LD_RPATH_OPT="-Wl,-rpath,"
2273 LD_RPATH_OPT="-rpath "
2276 LD_RPATH_OPT="-Wl,-rpath,"
2279 LD_RPATH_OPT="-rpath "
2287 AC_MSG_RESULT($LD_RPATH_OPT)
2289 case "x$LD_RPATH_OPT" in
2291 AC_MSG_CHECKING(if we need a space after rpath option)
2292 cf_save_LIBS="$LIBS"
2293 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
2294 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
2295 LIBS="$cf_save_LIBS"
2296 AC_MSG_RESULT($cf_rpath_space)
2297 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
2302 dnl ---------------------------------------------------------------------------
2303 dnl CF_LIBRARY_PATH version: 11 updated: 2021/01/01 13:31:04
2305 dnl Construct a search-list of directories for a nonstandard library-file
2308 dnl $1 = the variable to return as result
2309 dnl $2 = the package name
2310 AC_DEFUN([CF_LIBRARY_PATH],
2313 cf_library_path_list=""
2314 if test -n "${LDFLAGS}${LIBS}" ; then
2315 for cf_library_path in $LDFLAGS $LIBS
2317 case "$cf_library_path" in
2319 cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
2320 CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
2321 cf_library_path_list="$cf_library_path_list [$]$1"
2327 CF_SUBDIR_PATH($1,$2,lib)
2329 $1="$cf_library_path_list [$]$1"
2331 dnl ---------------------------------------------------------------------------
2332 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
2334 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
2335 dnl a monocase filesystem.
2336 AC_DEFUN([CF_MAKE_TAGS],[
2337 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
2339 AC_CHECK_PROGS(CTAGS, exctags ctags)
2340 AC_CHECK_PROGS(ETAGS, exetags etags)
2342 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
2344 if test "$cf_cv_mixedcase" = yes ; then
2345 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
2350 if test "$MAKE_UPPER_TAGS" = yes ; then
2356 if test "$MAKE_LOWER_TAGS" = yes ; then
2365 AC_SUBST(MAKE_UPPER_TAGS)
2366 AC_SUBST(MAKE_LOWER_TAGS)
2368 dnl ---------------------------------------------------------------------------
2369 dnl CF_MATH_LIB version: 10 updated: 2020/12/31 18:40:20
2371 dnl Checks for libraries. At least one UNIX system, Apple Macintosh
2372 dnl Rhapsody 5.5, does not have -lm. We cannot use the simpler
2373 dnl AC_CHECK_LIB(m,sin), because that fails for C++.
2374 AC_DEFUN([CF_MATH_LIB],
2376 AC_CACHE_CHECK(if -lm needed for math functions,
2383 [double x = rand(); printf("result = %g\\n", ]ifelse([$2],,sin(x),$2)[)],
2384 [cf_cv_need_libm=no],
2385 [cf_cv_need_libm=yes])])
2386 if test "$cf_cv_need_libm" = yes
2393 dnl ---------------------------------------------------------------------------
2394 dnl CF_MIXEDCASE_FILENAMES version: 9 updated: 2021/01/01 16:53:59
2395 dnl ----------------------
2396 dnl Check if the file-system supports mixed-case filenames. If we're able to
2397 dnl create a lowercase name and see it as uppercase, it doesn't support that.
2398 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
2400 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
2401 if test "$cross_compiling" = yes ; then
2402 case "$target_alias" in
2403 (*-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*|darwin*)
2411 rm -f conftest CONFTEST
2413 if test -f CONFTEST ; then
2418 rm -f conftest CONFTEST
2421 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
2423 dnl ---------------------------------------------------------------------------
2424 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
2426 dnl Write a debug message to config.log, along with the line number in the
2427 dnl configure script.
2428 AC_DEFUN([CF_MSG_LOG],[
2429 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
2431 dnl ---------------------------------------------------------------------------
2432 dnl CF_NCURSES_CC_CHECK version: 5 updated: 2020/12/31 20:19:42
2433 dnl -------------------
2434 dnl Check if we can compile with ncurses' header file
2435 dnl $1 is the cache variable to set
2436 dnl $2 is the header-file to include
2437 dnl $3 is the root name (ncurses or ncursesw)
2438 AC_DEFUN([CF_NCURSES_CC_CHECK],[
2440 ]ifelse($3,ncursesw,[
2441 #define _XOPEN_SOURCE_EXTENDED
2442 #undef HAVE_LIBUTF8_H /* in case we used CF_UTF8_LIB */
2443 #define HAVE_LIBUTF8_H /* to force ncurses' header file to use cchar_t */
2446 #ifdef NCURSES_VERSION
2447 ]ifelse($3,ncursesw,[
2452 printf("%s\\n", NCURSES_VERSION);
2464 dnl ---------------------------------------------------------------------------
2465 dnl CF_NCURSES_CONFIG version: 26 updated: 2021/01/03 08:05:37
2466 dnl -----------------
2467 dnl Tie together the configure-script macros for ncurses, preferring these in
2469 dnl a) ".pc" files for pkg-config, using $NCURSES_CONFIG_PKG
2470 dnl b) the "-config" script from ncurses, using $NCURSES_CONFIG
2471 dnl c) just plain libraries
2473 dnl $1 is the root library name (default: "ncurses")
2474 AC_DEFUN([CF_NCURSES_CONFIG],[
2475 AC_REQUIRE([CF_PKG_CONFIG])
2476 cf_ncuconfig_root=ifelse($1,,ncurses,$1)
2477 cf_have_ncuconfig=no
2479 if test "x${PKG_CONFIG:=none}" != xnone; then
2480 AC_MSG_CHECKING(pkg-config for $cf_ncuconfig_root)
2481 if "$PKG_CONFIG" --exists $cf_ncuconfig_root ; then
2484 AC_MSG_CHECKING(if the $cf_ncuconfig_root package files work)
2485 cf_have_ncuconfig=unknown
2487 cf_save_CFLAGS="$CFLAGS"
2488 cf_save_CPPFLAGS="$CPPFLAGS"
2489 cf_save_LIBS="$LIBS"
2491 cf_pkg_cflags="`$PKG_CONFIG --cflags $cf_ncuconfig_root`"
2492 cf_pkg_libs="`$PKG_CONFIG --libs $cf_ncuconfig_root`"
2494 # while -W for passing linker flags is prevalent, it is not "standard".
2495 # At least one wrapper for c89/c99 (in Apple's xcode) has its own
2496 # incompatible _and_ non-standard -W option which gives an error. Work
2497 # around that pitfall.
2498 case "x${CC}@@${cf_pkg_libs}@${cf_pkg_cflags}" in
2500 CF_ADD_CFLAGS($cf_pkg_cflags)
2501 CF_ADD_LIBS($cf_pkg_libs)
2503 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2504 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2505 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2507 { char *xx = curses_version(); return (xx == 0); }],
2508 [cf_test_ncuconfig=yes],
2509 [cf_test_ncuconfig=no],
2510 [cf_test_ncuconfig=maybe])],
2511 [cf_test_ncuconfig=no])
2513 CFLAGS="$cf_save_CFLAGS"
2514 CPPFLAGS="$cf_save_CPPFLAGS"
2515 LIBS="$cf_save_LIBS"
2517 if test "x$cf_test_ncuconfig" != xyes; then
2518 cf_temp=`echo "x$cf_pkg_cflags" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2519 cf_pkg_cflags="$cf_temp"
2520 cf_temp=`echo "x$cf_pkg_libs" | sed -e s/^x// -e 's/-W[[^ ]]*//g'`
2521 cf_pkg_libs="$cf_temp"
2526 CF_ADD_CFLAGS($cf_pkg_cflags)
2527 CF_ADD_LIBS($cf_pkg_libs)
2529 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2530 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2531 [AC_TRY_RUN([#include <${cf_cv_ncurses_header:-curses.h}>
2533 { char *xx = curses_version(); return (xx == 0); }],
2534 [cf_have_ncuconfig=yes],
2535 [cf_have_ncuconfig=no],
2536 [cf_have_ncuconfig=maybe])],
2537 [cf_have_ncuconfig=no])
2538 AC_MSG_RESULT($cf_have_ncuconfig)
2539 test "$cf_have_ncuconfig" = maybe && cf_have_ncuconfig=yes
2540 if test "$cf_have_ncuconfig" != "yes"
2542 CPPFLAGS="$cf_save_CPPFLAGS"
2543 LIBS="$cf_save_LIBS"
2544 NCURSES_CONFIG_PKG=none
2546 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2547 NCURSES_CONFIG_PKG=$cf_ncuconfig_root
2553 NCURSES_CONFIG_PKG=none
2556 NCURSES_CONFIG_PKG=none
2559 if test "x$cf_have_ncuconfig" = "xno"; then
2560 cf_ncurses_config="${cf_ncuconfig_root}${NCURSES_CONFIG_SUFFIX}-config"; echo "Looking for ${cf_ncurses_config}"
2562 CF_ACVERSION_CHECK(2.52,
2563 [AC_CHECK_TOOLS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)],
2564 [AC_PATH_PROGS(NCURSES_CONFIG, ${cf_ncurses_config} ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}6-config ${cf_ncuconfig_root}5-config, none)])
2566 if test "$NCURSES_CONFIG" != none ; then
2568 CF_ADD_CFLAGS(`$NCURSES_CONFIG --cflags`)
2569 CF_ADD_LIBS(`$NCURSES_CONFIG --libs`)
2571 # even with config script, some packages use no-override for curses.h
2572 CF_CURSES_HEADER(ifelse($1,,ncurses,$1))
2574 dnl like CF_NCURSES_CPPFLAGS
2575 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2577 dnl like CF_NCURSES_LIBS
2578 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_ncuconfig_root)
2579 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2581 dnl like CF_NCURSES_VERSION
2582 cf_cv_ncurses_version="`$NCURSES_CONFIG --version`"
2586 CF_NCURSES_CPPFLAGS(ifelse($1,,ncurses,$1))
2587 CF_NCURSES_LIBS(ifelse($1,,ncurses,$1))
2594 dnl ---------------------------------------------------------------------------
2595 dnl CF_NCURSES_CPPFLAGS version: 22 updated: 2021/01/02 09:31:20
2596 dnl -------------------
2597 dnl Look for the SVr4 curses clone 'ncurses' in the standard places, adjusting
2598 dnl the CPPFLAGS variable so we can include its header.
2600 dnl The header files may be installed as either curses.h, or ncurses.h (would
2601 dnl be obsolete, except that some packagers prefer this name to distinguish it
2602 dnl from a "native" curses implementation). If not installed for overwrite,
2603 dnl the curses.h file would be in an ncurses subdirectory (e.g.,
2604 dnl /usr/include/ncurses), but someone may have installed overwriting the
2605 dnl vendor's curses. Only very old versions (pre-1.9.2d, the first autoconf'd
2606 dnl version) of ncurses don't define either __NCURSES_H or NCURSES_VERSION in
2609 dnl If the installer has set $CFLAGS or $CPPFLAGS so that the ncurses header
2610 dnl is already in the include-path, don't even bother with this, since we cannot
2611 dnl easily determine which file it is. In this case, it has to be <curses.h>.
2613 dnl The optional parameter gives the root name of the library, in case it is
2614 dnl not installed as the default curses library. That is how the
2615 dnl wide-character version of ncurses is installed.
2616 AC_DEFUN([CF_NCURSES_CPPFLAGS],
2617 [AC_REQUIRE([CF_WITH_CURSES_DIR])
2619 AC_PROVIDE([CF_CURSES_CPPFLAGS])dnl
2620 cf_ncuhdr_root=ifelse($1,,ncurses,$1)
2622 test -n "$cf_cv_curses_dir" && \
2623 test "$cf_cv_curses_dir" != "no" && { \
2624 CF_ADD_INCDIR($cf_cv_curses_dir/include/$cf_ncuhdr_root)
2627 AC_CACHE_CHECK(for $cf_ncuhdr_root header in include-path, cf_cv_ncurses_h,[
2628 cf_header_list="$cf_ncuhdr_root/curses.h $cf_ncuhdr_root/ncurses.h"
2629 { test "$cf_ncuhdr_root" = ncurses || test "$cf_ncuhdr_root" = ncursesw; } && cf_header_list="$cf_header_list curses.h ncurses.h"
2630 for cf_header in $cf_header_list
2632 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h,$cf_header,$1)
2633 test "$cf_cv_ncurses_h" != no && break
2640 # some applications need this, but should check for NCURSES_VERSION
2641 AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2645 dnl ---------------------------------------------------------------------------
2646 dnl CF_NCURSES_EXT_FUNCS version: 4 updated: 2012/10/06 16:39:58
2647 dnl --------------------
2648 dnl Since 2007/11/17, ncurses has defined NCURSES_EXT_FUNCS; earlier versions
2649 dnl may provide these functions. Define the symbol if it is not defined, and
2651 AC_DEFUN([CF_NCURSES_EXT_FUNCS],
2653 AC_CACHE_CHECK(for ncurses extended functions,cf_cv_ncurses_ext_funcs,[
2655 #include <${cf_cv_ncurses_header:-curses.h}>],
2657 int x = NCURSES_EXT_FUNCS
2658 ],[cf_cv_ncurses_ext_funcs=defined],[
2660 #include <${cf_cv_ncurses_header:-curses.h}>],
2662 (void) assume_default_colors (0, 0);
2663 (void) curses_version ();
2664 (void) define_key (0, 0);
2665 (void) is_term_resized (0, 0);
2666 (void) key_defined (0);
2667 (void) keybound (0, 0);
2668 (void) keyok (0, 0);
2669 (void) resize_term (0, 0);
2670 (void) resizeterm (0, 0);
2671 (void) use_default_colors ();
2672 (void) use_extended_names (0);
2673 (void) wresize (0, 0, 0);],
2674 [cf_cv_ncurses_ext_funcs=yes],
2675 [cf_cv_ncurses_ext_funcs=no])
2678 test "$cf_cv_ncurses_ext_funcs" = yes && AC_DEFINE(NCURSES_EXT_FUNCS,1,[Define to 1 if we have ncurses extensions])
2680 dnl ---------------------------------------------------------------------------
2681 dnl CF_NCURSES_HEADER version: 7 updated: 2021/01/04 19:33:05
2682 dnl -----------------
2683 dnl Find a "curses" header file, e.g,. "curses.h", or one of the more common
2684 dnl variations of ncurses' installs.
2686 dnl See also CF_CURSES_HEADER, which sets the same cache variable.
2687 AC_DEFUN([CF_NCURSES_HEADER],[
2689 if test "$cf_cv_ncurses_h" != no ; then
2690 cf_cv_ncurses_header=$cf_cv_ncurses_h
2693 AC_CACHE_CHECK(for $cf_ncuhdr_root include-path, cf_cv_ncurses_h2,[
2694 test -n "$verbose" && echo
2695 CF_HEADER_PATH(cf_search,$cf_ncuhdr_root)
2696 test -n "$verbose" && echo "search path $cf_search"
2697 cf_save2_CPPFLAGS="$CPPFLAGS"
2698 for cf_incdir in $cf_search
2700 CF_ADD_INCDIR($cf_incdir)
2705 CF_NCURSES_CC_CHECK(cf_cv_ncurses_h2,$cf_header,$1)
2706 if test "$cf_cv_ncurses_h2" != no ; then
2707 cf_cv_ncurses_h2=$cf_incdir/$cf_header
2708 test -n "$verbose" && echo $ECHO_N " ... found $ECHO_C" 1>&AC_FD_MSG
2711 test -n "$verbose" && echo " ... tested $cf_incdir/$cf_header" 1>&AC_FD_MSG
2713 CPPFLAGS="$cf_save2_CPPFLAGS"
2714 test "$cf_cv_ncurses_h2" != no && break
2716 test "$cf_cv_ncurses_h2" = no && AC_MSG_ERROR(not found)
2719 CF_DIRNAME(cf_1st_incdir,$cf_cv_ncurses_h2)
2720 cf_cv_ncurses_header="`basename "$cf_cv_ncurses_h2"`"
2721 if test "`basename "$cf_1st_incdir"`" = "$cf_ncuhdr_root" ; then
2722 cf_cv_ncurses_header="$cf_ncuhdr_root/$cf_cv_ncurses_header"
2724 CF_ADD_INCDIR($cf_1st_incdir)
2728 # Set definitions to allow ifdef'ing for ncurses.h
2730 case "$cf_cv_ncurses_header" in
2732 AC_DEFINE(HAVE_NCURSES_H,1,[Define to 1 if we have ncurses.h])
2736 case "$cf_cv_ncurses_header" in
2737 (ncurses/curses.h|ncurses/ncurses.h)
2738 AC_DEFINE(HAVE_NCURSES_NCURSES_H,1,[Define to 1 if we have ncurses/ncurses.h])
2740 (ncursesw/curses.h|ncursesw/ncurses.h)
2741 AC_DEFINE(HAVE_NCURSESW_NCURSES_H,1,[Define to 1 if we have ncursesw/ncurses.h])
2746 dnl ---------------------------------------------------------------------------
2747 dnl CF_NCURSES_LIBS version: 20 updated: 2021/01/03 08:05:37
2749 dnl Look for the ncurses library. This is a little complicated on Linux,
2750 dnl because it may be linked with the gpm (general purpose mouse) library.
2751 dnl Some distributions have gpm linked with (bsd) curses, which makes it
2752 dnl unusable with ncurses. However, we don't want to link with gpm unless
2753 dnl ncurses has a dependency, since gpm is normally set up as a shared library,
2754 dnl and the linker will record a dependency.
2756 dnl The optional parameter gives the root name of the library, in case it is
2757 dnl not installed as the default curses library. That is how the
2758 dnl wide-character version of ncurses is installed.
2759 AC_DEFUN([CF_NCURSES_LIBS],
2760 [AC_REQUIRE([CF_NCURSES_CPPFLAGS])
2762 cf_nculib_root=ifelse($1,,ncurses,$1)
2763 # This works, except for the special case where we find gpm, but
2764 # ncurses is in a nonstandard location via $LIBS, and we really want
2767 cf_ncurses_SAVE="$LIBS"
2768 AC_CHECK_LIB(gpm,Gpm_Open,
2769 [AC_CHECK_LIB(gpm,initscr,
2770 [LIBS="$cf_ncurses_SAVE"],
2771 [cf_ncurses_LIBS="-lgpm"])])
2775 # This is only necessary if you are linking against an obsolete
2776 # version of ncurses (but it should do no harm, since it's static).
2777 if test "$cf_nculib_root" = ncurses ; then
2778 AC_CHECK_LIB(mytinfo,tgoto,[cf_ncurses_LIBS="-lmytinfo $cf_ncurses_LIBS"])
2783 CF_ADD_LIBS($cf_ncurses_LIBS)
2785 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
2787 CF_ADD_LIBS(-l$cf_nculib_root)
2789 CF_FIND_LIBRARY($cf_nculib_root,$cf_nculib_root,
2790 [#include <${cf_cv_ncurses_header:-curses.h}>],
2795 if test -n "$cf_ncurses_LIBS" ; then
2796 AC_MSG_CHECKING(if we can link $cf_nculib_root without $cf_ncurses_LIBS)
2797 cf_ncurses_SAVE="$LIBS"
2798 for p in $cf_ncurses_LIBS ; do
2799 q=`echo "$LIBS" | sed -e "s%$p %%" -e "s%$p$%%"`
2800 if test "$q" != "$LIBS" ; then
2804 AC_TRY_LINK([#include <${cf_cv_ncurses_header:-curses.h}>],
2805 [initscr(); mousemask(0,0); tigetstr((char *)0);],
2806 [AC_MSG_RESULT(yes)],
2808 LIBS="$cf_ncurses_SAVE"])
2811 CF_UPPER(cf_nculib_ROOT,HAVE_LIB$cf_nculib_root)
2812 AC_DEFINE_UNQUOTED($cf_nculib_ROOT)
2814 dnl ---------------------------------------------------------------------------
2815 dnl CF_NCURSES_PTHREADS version: 2 updated: 2016/04/22 05:07:41
2816 dnl -------------------
2817 dnl Use this followup check to ensure that we link with pthreads if ncurses
2819 AC_DEFUN([CF_NCURSES_PTHREADS],[
2820 : ${cf_nculib_root:=ifelse($1,,ncurses,$1)}
2821 AC_CHECK_LIB($cf_nculib_root,_nc_init_pthreads,
2822 cf_cv_ncurses_pthreads=yes,
2823 cf_cv_ncurses_pthreads=no)
2824 if test "$cf_cv_ncurses_pthreads" = yes
2826 CF_ADD_LIBS(-lpthread)
2829 dnl ---------------------------------------------------------------------------
2830 dnl CF_NCURSES_VERSION version: 16 updated: 2020/12/31 20:19:42
2831 dnl ------------------
2832 dnl Check for the version of ncurses, to aid in reporting bugs, etc.
2833 dnl Call CF_CURSES_CPPFLAGS first, or CF_NCURSES_CPPFLAGS. We don't use
2834 dnl AC_REQUIRE since that does not work with the shell's if/then/else/fi.
2835 AC_DEFUN([CF_NCURSES_VERSION],
2837 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
2838 AC_CACHE_CHECK(for ncurses version, cf_cv_ncurses_version,[
2839 cf_cv_ncurses_version=no
2841 rm -f "$cf_tempfile"
2843 #include <${cf_cv_ncurses_header:-curses.h}>
2847 FILE *fp = fopen("$cf_tempfile", "w");
2848 #ifdef NCURSES_VERSION
2849 # ifdef NCURSES_VERSION_PATCH
2850 fprintf(fp, "%s.%d\\n", NCURSES_VERSION, NCURSES_VERSION_PATCH);
2852 fprintf(fp, "%s\\n", NCURSES_VERSION);
2856 fprintf(fp, "old\\n");
2861 ${cf_cv_main_return:-return}(0);
2863 cf_cv_ncurses_version=`cat $cf_tempfile`],,[
2865 # This will not work if the preprocessor splits the line after the
2866 # Autoconf token. The 'unproto' program does that.
2867 cat > "conftest.$ac_ext" <<EOF
2868 #include <${cf_cv_ncurses_header:-curses.h}>
2870 #ifdef NCURSES_VERSION
2871 Autoconf NCURSES_VERSION
2879 cf_try="$ac_cpp conftest.$ac_ext 2>&AC_FD_CC | grep '^Autoconf ' >conftest.out"
2881 if test -f conftest.out ; then
2882 cf_out=`sed -e 's%^Autoconf %%' -e 's%^[[^"]]*"%%' -e 's%".*%%' conftest.out`
2883 test -n "$cf_out" && cf_cv_ncurses_version="$cf_out"
2887 rm -f "$cf_tempfile"
2889 test "$cf_cv_ncurses_version" = no || AC_DEFINE(NCURSES,1,[Define to 1 if we are using ncurses headers/libraries])
2891 dnl ---------------------------------------------------------------------------
2892 dnl CF_NCURSES_WRAP_PREFIX version: 1 updated: 2009/03/28 16:08:10
2893 dnl ----------------------
2894 dnl Check for ncurses "wrap-prefix" used for public variables which have been
2895 dnl wrapped with a function to help with concurrency control.
2896 AC_DEFUN([CF_NCURSES_WRAP_PREFIX],
2898 AC_MSG_CHECKING(for ncurses wrap-prefix)
2899 AC_ARG_WITH(ncurses-wrap-prefix,
2900 [ --with-ncurses-wrap-prefix naming-prefix for ncurses wrapped-variables],
2901 [NCURSES_WRAP_PREFIX=$withval],
2902 [NCURSES_WRAP_PREFIX=_nc_])
2903 AC_MSG_RESULT($NCURSES_WRAP_PREFIX)
2905 AC_SUBST(NCURSES_WRAP_PREFIX)
2907 dnl ---------------------------------------------------------------------------
2908 dnl CF_NETBSD_FORM_H version: 2 updated: 2012/10/06 16:39:58
2909 dnl ----------------
2910 dnl Check for NetBSD's form.h, which is incompatible with SVr4 and ncurses.
2911 dnl Some workarounds are needed in client programs to allow them to compile.
2912 AC_DEFUN([CF_NETBSD_FORM_H],[
2913 AC_CACHE_CHECK(for NetBSD form.h,cf_cv_netbsd_form_h,[
2915 #include <${cf_cv_ncurses_header:-curses.h}>
2919 int y = current_field(form)->cursor_ypos;
2920 int x = current_field(form)->cursor_xpos;
2921 ],[cf_cv_netbsd_form_h=yes
2922 ],[cf_cv_netbsd_form_h=no])
2925 test "$cf_cv_netbsd_form_h" = yes && AC_DEFINE(HAVE_NETBSD_FORM_H,1,[Define to 1 if we appear to be using NetBSD form.h])
2927 dnl ---------------------------------------------------------------------------
2928 dnl CF_NETBSD_MENU_H version: 2 updated: 2012/10/06 16:39:58
2929 dnl ----------------
2930 dnl Check for NetBSD's menu.h, which is incompatible with SVr4 and ncurses.
2931 dnl Some workarounds are needed in client programs to allow them to compile.
2932 AC_DEFUN([CF_NETBSD_MENU_H],[
2933 AC_CACHE_CHECK(for NetBSD menu.h,cf_cv_netbsd_menu_h,[
2935 #include <${cf_cv_ncurses_header:-curses.h}>
2939 int y = menu->max_item_width;
2940 ],[cf_cv_netbsd_menu_h=yes
2941 ],[cf_cv_netbsd_menu_h=no])
2944 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])
2946 dnl ---------------------------------------------------------------------------
2947 dnl CF_NO_LEAKS_OPTION version: 8 updated: 2021/01/05 20:05:09
2948 dnl ------------------
2949 dnl see CF_WITH_NO_LEAKS
2950 AC_DEFUN([CF_NO_LEAKS_OPTION],[
2951 AC_MSG_CHECKING(if you want to use $1 for testing)
2954 [AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
2957 : "${with_cflags:=-g}"
2958 : "${enable_leaks:=no}"
2961 AC_MSG_RESULT(${with_$1:-no})
2963 case ".$with_cflags" in
2975 dnl ---------------------------------------------------------------------------
2976 dnl CF_PATH_SYNTAX version: 18 updated: 2020/12/31 18:40:20
2978 dnl Check the argument to see that it looks like a pathname. Rewrite it if it
2979 dnl begins with one of the prefix/exec_prefix variables, and then again if the
2980 dnl result begins with 'NONE'. This is necessary to work around autoconf's
2981 dnl delayed evaluation of those symbols.
2982 AC_DEFUN([CF_PATH_SYNTAX],[
2983 if test "x$prefix" != xNONE; then
2984 cf_path_syntax="$prefix"
2986 cf_path_syntax="$ac_default_prefix"
2990 (.\[$]\(*\)*|.\'*\'*)
2994 (.[[a-zA-Z]]:[[\\/]]*) # OS/2 EMX
2996 (.\[$]\{*prefix\}*|.\[$]\{*dir\}*)
3000 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3005 $1=`echo "[$]$1" | sed -e s%NONE%$cf_path_syntax%`
3008 ifelse([$2],,[AC_MSG_ERROR([expected a pathname, not \"[$]$1\"])],$2)
3012 dnl ---------------------------------------------------------------------------
3013 dnl CF_PDCURSES_X11 version: 15 updated: 2021/01/02 09:31:20
3015 dnl Configure for PDCurses' X11 library
3016 AC_DEFUN([CF_PDCURSES_X11],[
3017 AC_REQUIRE([CF_X_ATHENA])
3019 CF_ACVERSION_CHECK(2.52,
3020 [AC_CHECK_TOOLS(XCURSES_CONFIG, xcurses-config, none)],
3021 [AC_PATH_PROGS(XCURSES_CONFIG, xcurses-config, none)])
3023 if test "$XCURSES_CONFIG" != none ; then
3025 CF_ADD_CFLAGS(`$XCURSES_CONFIG --cflags`)
3026 CF_ADD_LIBS(`$XCURSES_CONFIG --libs`)
3028 cf_cv_lib_XCurses=yes
3032 LDFLAGS="$LDFLAGS $X_LIBS"
3033 CF_CHECK_CFLAGS($X_CFLAGS)
3034 AC_CHECK_LIB(X11,XOpenDisplay,
3035 [CF_ADD_LIBS(-lX11)],,
3036 [$X_PRE_LIBS $LIBS $X_EXTRA_LIBS])
3037 AC_CACHE_CHECK(for XCurses library,cf_cv_lib_XCurses,[
3038 CF_ADD_LIBS(-lXCurses)
3040 #include <xcurses.h>
3041 char *XCursesProgramName = "test";
3043 [cf_cv_lib_XCurses=yes],
3044 [cf_cv_lib_XCurses=no])
3049 if test "$cf_cv_lib_XCurses" = yes ; then
3050 AC_DEFINE(UNIX,1,[Define to 1 if using PDCurses on Unix])
3051 AC_DEFINE(XCURSES,1,[Define to 1 if using PDCurses on Unix])
3052 AC_CHECK_HEADER(xcurses.h, AC_DEFINE(HAVE_XCURSES,1,[Define to 1 if using PDCurses on Unix]))
3054 AC_MSG_ERROR(Cannot link with XCurses)
3057 dnl ---------------------------------------------------------------------------
3058 dnl CF_PKG_CONFIG version: 11 updated: 2021/01/01 13:31:04
3060 dnl Check for the package-config program, unless disabled by command-line.
3061 AC_DEFUN([CF_PKG_CONFIG],
3063 AC_MSG_CHECKING(if you want to use pkg-config)
3064 AC_ARG_WITH(pkg-config,
3065 [ --with-pkg-config{=path} enable/disable use of pkg-config],
3066 [cf_pkg_config=$withval],
3067 [cf_pkg_config=yes])
3068 AC_MSG_RESULT($cf_pkg_config)
3070 case "$cf_pkg_config" in
3075 CF_ACVERSION_CHECK(2.52,
3076 [AC_PATH_TOOL(PKG_CONFIG, pkg-config, none)],
3077 [AC_PATH_PROG(PKG_CONFIG, pkg-config, none)])
3084 test -z "$PKG_CONFIG" && PKG_CONFIG=none
3085 if test "$PKG_CONFIG" != none ; then
3086 CF_PATH_SYNTAX(PKG_CONFIG)
3087 elif test "x$cf_pkg_config" != xno ; then
3088 AC_MSG_WARN(pkg-config is not installed)
3091 AC_SUBST(PKG_CONFIG)
3093 dnl ---------------------------------------------------------------------------
3094 dnl CF_POSIX_C_SOURCE version: 11 updated: 2018/12/31 20:46:17
3095 dnl -----------------
3096 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
3098 dnl POSIX.1-1990 _POSIX_SOURCE
3099 dnl POSIX.1-1990 and _POSIX_SOURCE and
3100 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
3102 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
3103 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
3104 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
3107 dnl $1 is the nominal value for _POSIX_C_SOURCE
3108 AC_DEFUN([CF_POSIX_C_SOURCE],
3109 [AC_REQUIRE([CF_POSIX_VISIBLE])dnl
3111 if test "$cf_cv_posix_visible" = no; then
3113 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
3115 cf_save_CFLAGS="$CFLAGS"
3116 cf_save_CPPFLAGS="$CPPFLAGS"
3118 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
3119 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
3121 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
3122 CF_MSG_LOG(if the symbol is already defined go no further)
3123 AC_TRY_COMPILE([#include <sys/types.h>],[
3124 #ifndef _POSIX_C_SOURCE
3127 [cf_cv_posix_c_source=no],
3128 [cf_want_posix_source=no
3129 case .$cf_POSIX_C_SOURCE in
3131 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3134 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
3135 cf_want_posix_source=yes
3138 cf_want_posix_source=yes
3141 if test "$cf_want_posix_source" = yes ; then
3142 AC_TRY_COMPILE([#include <sys/types.h>],[
3143 #ifdef _POSIX_SOURCE
3146 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
3148 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
3149 CFLAGS="$cf_trim_CFLAGS"
3150 CPPFLAGS="$cf_trim_CPPFLAGS"
3151 CF_APPEND_TEXT(CPPFLAGS,$cf_cv_posix_c_source)
3152 CF_MSG_LOG(if the second compile does not leave our definition intact error)
3153 AC_TRY_COMPILE([#include <sys/types.h>],[
3154 #ifndef _POSIX_C_SOURCE
3157 [cf_cv_posix_c_source=no])
3158 CFLAGS="$cf_save_CFLAGS"
3159 CPPFLAGS="$cf_save_CPPFLAGS"
3163 if test "$cf_cv_posix_c_source" != no ; then
3164 CFLAGS="$cf_trim_CFLAGS"
3165 CPPFLAGS="$cf_trim_CPPFLAGS"
3166 CF_ADD_CFLAGS($cf_cv_posix_c_source)
3169 fi # cf_cv_posix_visible
3172 dnl ---------------------------------------------------------------------------
3173 dnl CF_POSIX_VISIBLE version: 1 updated: 2018/12/31 20:46:17
3174 dnl ----------------
3175 dnl POSIX documents test-macros which an application may set before any system
3176 dnl headers are included to make features available.
3178 dnl Some BSD platforms (originally FreeBSD, but copied by a few others)
3179 dnl diverged from POSIX in 2002 by setting symbols which make all of the most
3180 dnl recent features visible in the system header files unless the application
3181 dnl overrides the corresponding test-macros. Doing that introduces portability
3184 dnl This macro makes a special check for the symbols used for this, to avoid a
3185 dnl conflicting definition.
3186 AC_DEFUN([CF_POSIX_VISIBLE],
3188 AC_CACHE_CHECK(if the POSIX test-macros are already defined,cf_cv_posix_visible,[
3189 AC_TRY_COMPILE([#include <stdio.h>],[
3190 #if defined(__POSIX_VISIBLE) && ((__POSIX_VISIBLE - 0L) > 0) \
3191 && defined(__XSI_VISIBLE) && ((__XSI_VISIBLE - 0L) > 0) \
3192 && defined(__BSD_VISIBLE) && ((__BSD_VISIBLE - 0L) > 0) \
3193 && defined(__ISO_C_VISIBLE) && ((__ISO_C_VISIBLE - 0L) > 0)
3194 #error conflicting symbols found
3196 ],[cf_cv_posix_visible=no],[cf_cv_posix_visible=yes])
3199 dnl ---------------------------------------------------------------------------
3200 dnl CF_PRG_RULES version: 2 updated: 2021/01/01 13:31:04
3202 dnl Append definitions and rules for the given programs to the subdirectory
3203 dnl Makefiles, and the recursion rule for the top-level Makefile.
3206 dnl $1 = script to run
3207 dnl $2 = list of subdirectories
3211 AC_DEFUN([CF_PRG_RULES],
3215 if test ! -d "$srcdir/$cf_dir" ; then
3217 elif test -f "$srcdir/$cf_dir/programs" ; then
3218 $AWK -f $1 "$srcdir/$cf_dir/programs" >>$cf_dir/Makefile
3223 dnl ---------------------------------------------------------------------------
3224 dnl CF_PROG_CC version: 5 updated: 2019/12/31 08:53:54
3226 dnl standard check for CC, plus followup sanity checks
3227 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
3228 AC_DEFUN([CF_PROG_CC],[
3229 CF_ACVERSION_CHECK(2.53,
3230 [AC_MSG_WARN(this will incorrectly handle gnatgcc choice)
3231 AC_REQUIRE([AC_PROG_CC])],
3233 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
3235 CF_ACVERSION_CHECK(2.52,
3240 dnl ---------------------------------------------------------------------------
3241 dnl CF_PROG_INSTALL version: 10 updated: 2021/01/04 19:33:05
3243 dnl Force $INSTALL to be an absolute-path. Otherwise, edit_man.sh and the
3244 dnl misc/tabset install won't work properly. Usually this happens only when
3245 dnl using the fallback mkinstalldirs script
3246 AC_DEFUN([CF_PROG_INSTALL],
3252 CF_DIRNAME(cf_dir,$INSTALL)
3253 test -z "$cf_dir" && cf_dir=.
3254 INSTALL="`cd \"$cf_dir\" && pwd`"/"`echo "$INSTALL" | sed -e 's%^.*/%%'`"
3258 dnl ---------------------------------------------------------------------------
3259 dnl CF_PROG_LINT version: 4 updated: 2019/11/20 18:55:37
3261 AC_DEFUN([CF_PROG_LINT],
3263 AC_CHECK_PROGS(LINT, lint cppcheck splint)
3265 (xcppcheck|x*/cppcheck)
3266 test -z "$LINT_OPTS" && LINT_OPTS="--enable=all"
3271 dnl ---------------------------------------------------------------------------
3272 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
3273 dnl ----------------
3274 dnl Remove all -U and -D options that refer to the given symbol from a list
3275 dnl of C compiler options. This works around the problem that not all
3276 dnl compilers process -U and -D options from left-to-right, so a -U option
3277 dnl cannot be used to cancel the effect of a preceding -D option.
3279 dnl $1 = target (which could be the same as the source variable)
3280 dnl $2 = source (including '$')
3281 dnl $3 = symbol to remove
3282 define([CF_REMOVE_DEFINE],
3285 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
3286 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
3288 dnl ---------------------------------------------------------------------------
3289 dnl CF_RESTORE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:47:45
3290 dnl ---------------------
3291 dnl Restore flags saved in CF_SAVE_XTRA_FLAGS
3292 dnl $1 = name of current macro
3293 define([CF_RESTORE_XTRA_FLAGS],
3295 LIBS="$cf_save_LIBS_$1"
3296 CFLAGS="$cf_save_CFLAGS_$1"
3297 CPPFLAGS="$cf_save_CPPFLAGS_$1"
3299 dnl ---------------------------------------------------------------------------
3300 dnl CF_RPATH_HACK version: 13 updated: 2021/01/03 18:30:50
3302 AC_DEFUN([CF_RPATH_HACK],
3303 [AC_REQUIRE([AC_PROG_FGREP])dnl
3304 AC_REQUIRE([CF_LD_RPATH_OPT])dnl
3306 AC_MSG_CHECKING(for updated LDFLAGS)
3307 if test -n "$LD_RPATH_OPT" ; then
3308 AC_MSG_RESULT(maybe)
3310 AC_CHECK_PROGS(cf_ldd_prog,ldd,no)
3311 cf_rpath_list="/usr/lib /lib"
3312 if test "$cf_ldd_prog" != no
3316 AC_TRY_LINK([#include <stdio.h>],
3318 [cf_rpath_oops=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} ' not found' | sed -e 's% =>.*$%%' |sort | uniq`
3319 cf_rpath_list=`"$cf_ldd_prog" "conftest$ac_exeext" | ${FGREP-fgrep} / | sed -e 's%^.*[[ ]]/%/%' -e 's%/[[^/]][[^/]]*$%%' |sort | uniq`])
3321 # If we passed the link-test, but get a "not found" on a given library,
3322 # this could be due to inept reconfiguration of gcc to make it only
3323 # partly honor /usr/local/lib (or whatever). Sometimes this behavior
3324 # is intentional, e.g., installing gcc in /usr/bin and suppressing the
3325 # /usr/local libraries.
3326 if test -n "$cf_rpath_oops"
3328 for cf_rpath_src in $cf_rpath_oops
3330 for cf_rpath_dir in \
3335 if test -f "$cf_rpath_dir/lib/$cf_rpath_src"
3337 CF_VERBOSE(...adding -L$cf_rpath_dir/lib to LDFLAGS for $cf_rpath_src)
3338 LDFLAGS="$LDFLAGS -L$cf_rpath_dir/lib"
3346 CF_VERBOSE(...checking EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3348 CF_RPATH_HACK_2(LDFLAGS)
3349 CF_RPATH_HACK_2(LIBS)
3351 CF_VERBOSE(...checked EXTRA_LDFLAGS $EXTRA_LDFLAGS)
3355 AC_SUBST(EXTRA_LDFLAGS)
3357 dnl ---------------------------------------------------------------------------
3358 dnl CF_RPATH_HACK_2 version: 8 updated: 2021/01/01 13:31:04
3360 dnl Do one set of substitutions for CF_RPATH_HACK, adding an rpath option to
3361 dnl EXTRA_LDFLAGS for each -L option found.
3363 dnl $cf_rpath_list contains a list of directories to ignore.
3365 dnl $1 = variable name to update. The LDFLAGS variable should be the only one,
3366 dnl but LIBS often has misplaced -L options.
3367 AC_DEFUN([CF_RPATH_HACK_2],
3369 CF_VERBOSE(...checking $1 [$]$1)
3372 for cf_rpath_src in [$]$1
3374 case "$cf_rpath_src" in
3377 # check if this refers to a directory which we will ignore
3379 if test -n "$cf_rpath_list"
3381 for cf_rpath_item in $cf_rpath_list
3383 if test "x$cf_rpath_src" = "x-L$cf_rpath_item"
3391 if test "$cf_rpath_skip" = no
3393 # transform the option
3394 if test "$LD_RPATH_OPT" = "-R " ; then
3395 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%-R %"`
3397 cf_rpath_tmp=`echo "$cf_rpath_src" |sed -e "s%-L%$LD_RPATH_OPT%"`
3400 # if we have not already added this, add it now
3401 cf_rpath_tst=`echo "$EXTRA_LDFLAGS" | sed -e "s%$cf_rpath_tmp %%"`
3402 if test "x$cf_rpath_tst" = "x$EXTRA_LDFLAGS"
3404 CF_VERBOSE(...Filter $cf_rpath_src ->$cf_rpath_tmp)
3405 EXTRA_LDFLAGS="$cf_rpath_tmp $EXTRA_LDFLAGS"
3410 cf_rpath_dst="$cf_rpath_dst $cf_rpath_src"
3414 CF_VERBOSE(...checked $1 [$]$1)
3415 AC_SUBST(EXTRA_LDFLAGS)
3417 dnl ---------------------------------------------------------------------------
3418 dnl CF_SAVE_XTRA_FLAGS version: 1 updated: 2020/01/11 16:46:44
3419 dnl ------------------
3420 dnl Use this macro to save CFLAGS/CPPFLAGS/LIBS before checks against X headers
3421 dnl and libraries which do not update those variables.
3423 dnl $1 = name of current macro
3424 define([CF_SAVE_XTRA_FLAGS],
3426 cf_save_LIBS_$1="$LIBS"
3427 cf_save_CFLAGS_$1="$CFLAGS"
3428 cf_save_CPPFLAGS_$1="$CPPFLAGS"
3429 LIBS="$LIBS ${X_PRE_LIBS} ${X_LIBS} ${X_EXTRA_LIBS}"
3430 for cf_X_CFLAGS in $X_CFLAGS
3432 case "x$cf_X_CFLAGS" in
3434 CPPFLAGS="$CPPFLAGS $cf_X_CFLAGS"
3437 CFLAGS="$CFLAGS $cf_X_CFLAGS"
3442 dnl ---------------------------------------------------------------------------
3443 dnl CF_SIGWINCH version: 6 updated: 2021/01/01 13:31:04
3445 dnl Use this macro after CF_XOPEN_SOURCE, but do not require it (not all
3446 dnl programs need this test).
3448 dnl This is really a Mac OS X 10.4.3 workaround. Defining _POSIX_C_SOURCE
3449 dnl forces SIGWINCH to be undefined (breaks xterm, ncurses). Oddly, the struct
3450 dnl winsize declaration is left alone - we may revisit this if Apple choose to
3451 dnl break that part of the interface as well.
3452 AC_DEFUN([CF_SIGWINCH],
3454 AC_CACHE_CHECK(if SIGWINCH is defined,cf_cv_define_sigwinch,[
3456 #include <sys/types.h>
3457 #include <sys/signal.h>
3458 ],[int x = SIGWINCH; (void)x],
3459 [cf_cv_define_sigwinch=yes],
3461 #undef _XOPEN_SOURCE
3462 #undef _POSIX_SOURCE
3463 #undef _POSIX_C_SOURCE
3464 #include <sys/types.h>
3465 #include <sys/signal.h>
3466 ],[int x = SIGWINCH; (void)x],
3467 [cf_cv_define_sigwinch=maybe],
3468 [cf_cv_define_sigwinch=no])
3472 if test "$cf_cv_define_sigwinch" = maybe ; then
3473 AC_CACHE_CHECK(for actual SIGWINCH definition,cf_cv_fixup_sigwinch,[
3474 cf_cv_fixup_sigwinch=unknown
3476 while test "$cf_sigwinch" != 1
3479 #undef _XOPEN_SOURCE
3480 #undef _POSIX_SOURCE
3481 #undef _POSIX_C_SOURCE
3482 #include <sys/types.h>
3483 #include <sys/signal.h>
3485 #if SIGWINCH != $cf_sigwinch
3488 int x = SIGWINCH; (void)x],
3489 [cf_cv_fixup_sigwinch=$cf_sigwinch
3492 cf_sigwinch="`expr "$cf_sigwinch" - 1`"
3496 if test "$cf_cv_fixup_sigwinch" != unknown ; then
3497 CPPFLAGS="$CPPFLAGS -DSIGWINCH=$cf_cv_fixup_sigwinch"
3501 dnl ---------------------------------------------------------------------------
3502 dnl CF_SIG_ATOMIC_T version: 5 updated: 2020/03/10 18:53:47
3504 dnl signal handler, but there are some gcc dependencies in that recommendation.
3506 AC_DEFUN([CF_SIG_ATOMIC_T],
3508 AC_MSG_CHECKING(for signal global datatype)
3509 AC_CACHE_VAL(cf_cv_sig_atomic_t,[
3511 "volatile sig_atomic_t" \
3516 #include <sys/types.h>
3522 static void handler(int sig)
3527 [signal(SIGINT, handler);
3529 [cf_cv_sig_atomic_t=$cf_type],
3530 [cf_cv_sig_atomic_t=no])
3531 test "$cf_cv_sig_atomic_t" != no && break
3534 AC_MSG_RESULT($cf_cv_sig_atomic_t)
3535 test "$cf_cv_sig_atomic_t" != no && AC_DEFINE_UNQUOTED(SIG_ATOMIC_T, $cf_cv_sig_atomic_t,[Define to signal global datatype])
3537 dnl ---------------------------------------------------------------------------
3538 dnl CF_SUBDIR_PATH version: 7 updated: 2014/12/04 04:33:06
3540 dnl Construct a search-list for a nonstandard header/lib-file
3541 dnl $1 = the variable to return as result
3542 dnl $2 = the package name
3543 dnl $3 = the subdirectory, e.g., bin, include or lib
3544 AC_DEFUN([CF_SUBDIR_PATH],
3548 CF_ADD_SUBDIR_PATH($1,$2,$3,$prefix,NONE)
3550 for cf_subdir_prefix in \
3558 CF_ADD_SUBDIR_PATH($1,$2,$3,$cf_subdir_prefix,$prefix)
3561 dnl ---------------------------------------------------------------------------
3562 dnl CF_SYS_TIME_SELECT version: 6 updated: 2015/04/18 08:56:57
3563 dnl ------------------
3564 dnl Check if we can include <sys/time.h> with <sys/select.h>; this breaks on
3565 dnl older SCO configurations.
3566 AC_DEFUN([CF_SYS_TIME_SELECT],
3568 AC_MSG_CHECKING(if sys/time.h works with sys/select.h)
3569 AC_CACHE_VAL(cf_cv_sys_time_select,[
3571 #include <sys/types.h>
3572 #ifdef HAVE_SYS_TIME_H
3573 #include <sys/time.h>
3575 #ifdef HAVE_SYS_SELECT_H
3576 #include <sys/select.h>
3578 ],[],[cf_cv_sys_time_select=yes],
3579 [cf_cv_sys_time_select=no])
3581 AC_MSG_RESULT($cf_cv_sys_time_select)
3582 test "$cf_cv_sys_time_select" = yes && AC_DEFINE(HAVE_SYS_TIME_SELECT,1,[Define to 1 if we can include <sys/time.h> with <sys/select.h>])
3584 dnl ---------------------------------------------------------------------------
3585 dnl CF_TERM_HEADER version: 6 updated: 2021/01/02 09:31:20
3587 dnl Look for term.h, which is part of X/Open curses. It defines the interface
3588 dnl to terminfo database. Usually it is in the same include-path as curses.h,
3589 dnl but some packagers change this, breaking various applications.
3590 AC_DEFUN([CF_TERM_HEADER],[
3591 AC_CACHE_CHECK(for terminfo header, cf_cv_term_header,[
3592 case "${cf_cv_ncurses_header}" in
3593 (*/ncurses.h|*/ncursesw.h)
3594 cf_term_header=`echo "$cf_cv_ncurses_header" | sed -e 's%ncurses[[^.]]*\.h$%term.h%'`
3597 cf_term_header=term.h
3601 for cf_test in $cf_term_header "ncurses/term.h" "ncursesw/term.h"
3603 AC_TRY_COMPILE([#include <stdio.h>
3604 #include <${cf_cv_ncurses_header:-curses.h}>
3606 ],[int x = auto_left_margin; (void)x],[
3607 cf_cv_term_header="$cf_test"],[
3608 cf_cv_term_header=unknown
3610 test "$cf_cv_term_header" != unknown && break
3614 # Set definitions to allow ifdef'ing to accommodate subdirectories
3616 case "$cf_cv_term_header" in
3618 AC_DEFINE(HAVE_TERM_H,1,[Define to 1 if we have term.h])
3622 case "$cf_cv_term_header" in
3624 AC_DEFINE(HAVE_NCURSES_TERM_H,1,[Define to 1 if we have ncurses/term.h])
3627 AC_DEFINE(HAVE_NCURSESW_TERM_H,1,[Define to 1 if we have ncursesw/term.h])
3631 dnl ---------------------------------------------------------------------------
3632 dnl CF_TOP_BUILDDIR version: 2 updated: 2013/07/27 17:38:32
3634 dnl Define a top_builddir symbol, for applications that need an absolute path.
3635 AC_DEFUN([CF_TOP_BUILDDIR],
3637 top_builddir=ifelse($1,,`pwd`,$1)
3638 AC_SUBST(top_builddir)
3640 dnl ---------------------------------------------------------------------------
3641 dnl CF_TPUTS_PROTO version: 4 updated: 2021/01/04 19:45:09
3643 dnl Check for type of function-pointer passed to tputs. Some old
3644 dnl implementations used functions that had different prototypes, making it
3645 dnl hard to compile portable programs using tputs.
3646 AC_DEFUN([CF_TPUTS_PROTO],[
3647 CF_CURSES_FUNCS(tputs)
3648 if test "x$cf_cv_func_tputs" = xyes
3651 for cf_arg in int char
3653 for cf_ret in int void
3655 if test "$cf_ret" = void
3657 cf_return="/* nothing */"
3659 cf_return="return value"
3662 #include <${cf_cv_ncurses_header:-curses.h}>
3663 #include <$cf_cv_term_header>
3665 static $cf_ret outc($cf_arg value) { $cf_return; }
3667 tputs("hello", 0, outc);
3668 ${cf_cv_main_return:-return}(0);
3670 CF_VERBOSE([prototype $cf_ret func($cf_arg value)])
3671 cat >>confdefs.h <<EOF
3672 #define TPUTS_ARG $cf_arg
3673 #define TPUTS_PROTO(func,value) $cf_ret func(TPUTS_ARG value)
3674 #define TPUTS_RETURN(value) $cf_return
3680 test "$cf_done" = yes && break
3684 dnl ---------------------------------------------------------------------------
3685 dnl CF_TRIM_X_LIBS version: 3 updated: 2015/04/12 15:39:00
3687 dnl Trim extra base X libraries added as a workaround for inconsistent library
3688 dnl dependencies returned by "new" pkg-config files.
3689 AC_DEFUN([CF_TRIM_X_LIBS],[
3690 for cf_trim_lib in Xmu Xt X11
3693 (*-l$cf_trim_lib\ *-l$cf_trim_lib*)
3694 LIBS=`echo "$LIBS " | sed -e 's/ / /g' -e 's%-l'"$cf_trim_lib"' %%' -e 's/ $//'`
3695 CF_VERBOSE(..trimmed $LIBS)
3700 dnl ---------------------------------------------------------------------------
3701 dnl CF_TRY_PKG_CONFIG version: 6 updated: 2020/12/31 10:54:15
3702 dnl -----------------
3703 dnl This is a simple wrapper to use for pkg-config, for libraries which may be
3704 dnl available in that form.
3706 dnl $1 = package name, which may be a shell variable
3707 dnl $2 = extra logic to use, if any, after updating CFLAGS and LIBS
3708 dnl $3 = logic to use if pkg-config does not have the package
3709 AC_DEFUN([CF_TRY_PKG_CONFIG],[
3710 AC_REQUIRE([CF_PKG_CONFIG])
3712 if test "$PKG_CONFIG" != none && "$PKG_CONFIG" --exists "$1"; then
3713 CF_VERBOSE(found package $1)
3714 cf_pkgconfig_incs="`$PKG_CONFIG --cflags "$1" 2>/dev/null`"
3715 cf_pkgconfig_libs="`$PKG_CONFIG --libs "$1" 2>/dev/null`"
3716 CF_VERBOSE(package $1 CFLAGS: $cf_pkgconfig_incs)
3717 CF_VERBOSE(package $1 LIBS: $cf_pkgconfig_libs)
3718 CF_ADD_CFLAGS($cf_pkgconfig_incs)
3719 CF_ADD_LIBS($cf_pkgconfig_libs)
3720 ifelse([$2],,:,[$2])
3724 ifelse([$3],,:,[$3])
3727 dnl ---------------------------------------------------------------------------
3728 dnl CF_TRY_XOPEN_SOURCE version: 2 updated: 2018/06/20 20:23:13
3729 dnl -------------------
3730 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
3731 dnl can define it successfully.
3732 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
3733 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
3737 #include <sys/types.h>
3739 #ifndef _XOPEN_SOURCE
3742 [cf_cv_xopen_source=no],
3743 [cf_save="$CPPFLAGS"
3744 CF_APPEND_TEXT(CPPFLAGS,-D_XOPEN_SOURCE=$cf_XOPEN_SOURCE)
3748 #include <sys/types.h>
3750 #ifdef _XOPEN_SOURCE
3753 [cf_cv_xopen_source=no],
3754 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
3759 if test "$cf_cv_xopen_source" != no ; then
3760 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
3761 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
3762 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
3763 CF_ADD_CFLAGS($cf_temp_xopen_source)
3766 dnl ---------------------------------------------------------------------------
3767 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
3769 dnl Make an uppercase version of a variable
3770 dnl $1=uppercase($2)
3771 AC_DEFUN([CF_UPPER],
3773 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
3775 dnl ---------------------------------------------------------------------------
3776 dnl CF_UTF8_LIB version: 8 updated: 2012/10/06 08:57:51
3778 dnl Check for multibyte support, and if not found, utf8 compatibility library
3779 AC_DEFUN([CF_UTF8_LIB],
3781 AC_CACHE_CHECK(for multibyte character support,cf_cv_utf8_lib,[
3782 cf_save_LIBS="$LIBS"
3784 #include <stdlib.h>],[putwc(0,0);],
3785 [cf_cv_utf8_lib=yes],
3787 #include <libutf8.h>],[putwc(0,0);],utf8,
3788 [cf_cv_utf8_lib=add-on],
3789 [cf_cv_utf8_lib=no])
3792 # HAVE_LIBUTF8_H is used by ncurses if curses.h is shared between
3794 if test "$cf_cv_utf8_lib" = "add-on" ; then
3795 AC_DEFINE(HAVE_LIBUTF8_H,1,[Define to 1 if we should include libutf8.h])
3796 CF_ADD_INCDIR($cf_cv_header_path_utf8)
3797 CF_ADD_LIBDIR($cf_cv_library_path_utf8)
3798 CF_ADD_LIBS($cf_cv_library_file_utf8)
3801 dnl ---------------------------------------------------------------------------
3802 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
3804 dnl Use AC_VERBOSE w/o the warnings
3805 AC_DEFUN([CF_VERBOSE],
3806 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
3809 dnl ---------------------------------------------------------------------------
3810 dnl CF_WCHAR_TYPE version: 4 updated: 2012/10/06 16:39:58
3812 dnl Check if type wide-character type $1 is declared, and if so, which header
3813 dnl file is needed. The second parameter is used to set a shell variable when
3814 dnl the type is not found. The first parameter sets a shell variable for the
3816 AC_DEFUN([CF_WCHAR_TYPE],
3818 # This is needed on Tru64 5.0 to declare $1
3819 AC_CACHE_CHECK(if we must include wchar.h to declare $1,cf_cv_$1,[
3824 #ifdef HAVE_LIBUTF8_H
3825 #include <libutf8.h>
3834 #ifdef HAVE_LIBUTF8_H
3835 #include <libutf8.h>
3839 [cf_cv_$1=unknown])])])
3841 if test "$cf_cv_$1" = yes ; then
3842 AC_DEFINE(NEED_WCHAR_H,1,[Define to 1 if we must include wchar.h])
3847 # if we do not find $1 in either place, use substitution to provide a fallback.
3848 if test "$cf_cv_$1" = unknown ; then
3853 # if we find $1 in either place, use substitution to provide a fallback.
3854 if test "$cf_cv_$1" != unknown ; then
3859 dnl ---------------------------------------------------------------------------
3860 dnl CF_WITH_CURSES_DIR version: 4 updated: 2021/01/02 19:22:58
3861 dnl ------------------
3862 dnl Wrapper for AC_ARG_WITH to specify directory under which to look for curses
3864 AC_DEFUN([CF_WITH_CURSES_DIR],[
3866 AC_MSG_CHECKING(for specific curses-directory)
3867 AC_ARG_WITH(curses-dir,
3868 [ --with-curses-dir=DIR directory in which (n)curses is installed],
3869 [cf_cv_curses_dir=$withval],
3870 [cf_cv_curses_dir=no])
3871 AC_MSG_RESULT($cf_cv_curses_dir)
3873 if test -n "$cf_cv_curses_dir" && test "$cf_cv_curses_dir" != "no"
3875 CF_PATH_SYNTAX(withval)
3876 if test -d "$cf_cv_curses_dir"
3878 CF_ADD_INCDIR($cf_cv_curses_dir/include)
3879 CF_ADD_LIBDIR($cf_cv_curses_dir/lib)
3883 dnl ---------------------------------------------------------------------------
3884 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
3885 dnl ----------------
3886 dnl Configure-option for dbmalloc. The optional parameter is used to override
3887 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
3888 AC_DEFUN([CF_WITH_DBMALLOC],[
3889 CF_NO_LEAKS_OPTION(dbmalloc,
3890 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
3893 if test "$with_dbmalloc" = yes ; then
3894 AC_CHECK_HEADER(dbmalloc.h,
3895 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
3898 dnl ---------------------------------------------------------------------------
3899 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
3901 dnl Configure-option for dmalloc. The optional parameter is used to override
3902 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
3903 AC_DEFUN([CF_WITH_DMALLOC],[
3904 CF_NO_LEAKS_OPTION(dmalloc,
3905 [ --with-dmalloc test: use Gray Watson's dmalloc library],
3908 if test "$with_dmalloc" = yes ; then
3909 AC_CHECK_HEADER(dmalloc.h,
3910 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
3913 dnl ---------------------------------------------------------------------------
3914 dnl CF_WITH_LIB_BASENAME version: 1 updated: 2020/03/07 20:05:14
3915 dnl --------------------
3916 dnl Allow for overriding the basename of a library, i.e., the part to which
3917 dnl prefixes/suffixes are attached.
3919 dnl $1 = variable to set
3920 dnl $2 = option name
3921 dnl $3 = default basename for library, if omitted use $2
3922 AC_DEFUN([CF_WITH_LIB_BASENAME],
3924 AC_MSG_CHECKING(for desired basename for $2 library)
3925 AC_ARG_WITH($2-libname,
3926 [ --with-$2-libname=XXX override ifelse($3,,$2,$3) basename of library],
3927 [with_lib_basename=$withval],
3928 [with_lib_basename=ifelse($3,,$2,$3)])
3929 $1="$with_lib_basename"
3933 $1=ifelse($3,,$2,$3)
3939 AC_MSG_RESULT([$]$1)
3942 dnl ---------------------------------------------------------------------------
3943 dnl CF_WITH_NCURSES_ETC version: 5 updated: 2016/02/20 19:23:20
3944 dnl -------------------
3945 dnl Use this macro for programs which use any variant of "curses", e.g.,
3946 dnl "ncurses", and "PDCurses". Programs that can use curses and some unrelated
3947 dnl library (such as slang) should use a "--with-screen=XXX" option.
3949 dnl This does not use AC_DEFUN, because that would tell autoconf to run each
3950 dnl of the macros inside this one - before this macro.
3951 define([CF_WITH_NCURSES_ETC],[
3956 AC_MSG_CHECKING(for specified curses library type)
3958 [ --with-screen=XXX use specified curses-libraries],
3959 [cf_cv_screen=$withval],[
3961 AC_ARG_WITH(ncursesw,
3962 [ --with-ncursesw use wide ncurses-libraries],
3963 [cf_cv_screen=ncursesw],[
3965 AC_ARG_WITH(ncurses,
3966 [ --with-ncurses use ncurses-libraries],
3967 [cf_cv_screen=ncurses],[
3969 AC_ARG_WITH(pdcurses,
3970 [ --with-pdcurses compile/link with pdcurses X11 library],
3971 [cf_cv_screen=pdcurses],[
3973 AC_ARG_WITH(curses-colr,
3974 [ --with-curses-colr compile/link with HPUX 10.x color-curses],
3975 [cf_cv_screen=curses_colr],[
3977 AC_ARG_WITH(curses-5lib,
3978 [ --with-curses-5lib compile/link with SunOS 5lib curses],
3979 [cf_cv_screen=curses_5lib])])])])])])
3981 AC_MSG_RESULT($cf_cv_screen)
3983 case $cf_cv_screen in
3989 CF_NCURSES_CONFIG($cf_cv_screen)
3992 CF_NCURSES_CONFIG($cf_cv_screen)
3998 AC_MSG_ERROR(unexpected screen-value: $cf_cv_screen)
4002 CF_NCURSES_PTHREADS($cf_cv_screen)
4005 dnl ---------------------------------------------------------------------------
4006 dnl CF_WITH_SCREEN_PDCURSES version: 1 updated: 2020/08/28 16:56:27
4007 dnl -----------------------
4008 dnl Call this macro before CF_ENABLE_WARNINGS for configure scripts which use
4009 dnl the "--with-screen=pdcurses" selection. Doing that allows the configure
4010 dnl script to search for the X11/Xt header files to declare (or not) the
4011 dnl symbol needed to enable "const" in those header files. If that configure
4012 dnl option is not used, then those checks are unnecessary.
4013 AC_DEFUN([CF_WITH_SCREEN_PDCURSES],[
4014 AC_PROVIDE([AC_PATH_XTRA])
4015 AC_PROVIDE([AC_PATH_X])
4016 if test -n "$with_screen" && test "x$with_screen" = "xpdcurses"
4022 dnl ---------------------------------------------------------------------------
4023 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
4024 dnl ----------------
4025 AC_DEFUN([CF_WITH_VALGRIND],[
4026 CF_NO_LEAKS_OPTION(valgrind,
4027 [ --with-valgrind test: use valgrind],
4030 dnl ---------------------------------------------------------------------------
4031 dnl CF_WITH_X11_RGB version: 2 updated: 2019/12/31 08:53:54
4033 dnl Handle configure option "--with-x11-rgb", setting these shell
4036 dnl $RGB_PATH is the option value, used for finding the X11 rgb file.
4037 dnl $no_x11_rgb is a "#" (comment) if "--without-x11-rgb" is given.
4039 dnl Most Linux's use this:
4040 dnl /usr/share/X11/rgb.txt
4041 dnl Debian uses this:
4042 dnl /etc/X11/rgb.txt
4043 dnl DragonFlyBSD ports uses this:
4044 dnl /usr/pkg/lib/X11/rgb.txt
4045 dnl FreeBSD ports use these:
4046 dnl /usr/local/lib/X11/rgb.txt
4047 dnl /usr/local/share/X11/rgb.txt
4048 dnl Mandriva has these:
4049 dnl /usr/lib/X11/rgb.txt
4050 dnl /usr/lib64/X11/rgb.txt
4051 dnl NetBSD has these
4052 dnl /usr/X11R7/lib/X11/rgb.txt
4053 dnl OpenSolaris uses
4055 dnl /usr/X11/etc/X11/rgb.txt
4056 dnl /usr/X11/share/X11/rgb.txt
4057 dnl /usr/X11/lib/X11/rgb.txt
4059 dnl /opt/local/share/X11/rgb.txt (MacPorts)
4060 dnl /opt/X11/share/X11/rgb.txt (non-ports)
4062 dnl /usr/X11/etc/X11/rgb.txt
4063 dnl /usr/X11/share/X11/rgb.txt (perhaps)
4064 dnl /usr/X11/lib/amd64/X11/rgb.txt
4065 dnl Solaris10 uses (in this order):
4066 dnl /usr/openwin/lib/X11/rgb.txt
4067 dnl /usr/X11/lib/X11/rgb.txt
4068 AC_DEFUN([CF_WITH_X11_RGB],[
4069 AC_MSG_CHECKING(for X11 rgb file)
4070 AC_ARG_WITH(x11-rgb,
4071 [ --with-x11-rgb=FILE file containing X11 rgb information (EPREFIX/lib/X11/rgb.txt)],
4072 [RGB_PATH=$withval],
4075 if test "x[$]RGB_PATH" = xauto
4077 RGB_PATH='${exec_prefix}/lib/X11/rgb.txt'
4079 /opt/local/share/X11/rgb.txt \
4080 /opt/X11/share/X11/rgb.txt \
4081 /usr/share/X11/rgb.txt \
4082 /usr/X11/share/X11/rgb.txt \
4083 /usr/X11/lib/X11/rgb.txt \
4084 /usr/lib/X11/rgb.txt \
4086 /usr/pkg/lib/X11/rgb.txt \
4087 /usr/X11R7/lib/X11/rgb.txt \
4088 /usr/X11R6/lib/X11/rgb.txt \
4089 /usr/X11R5/lib/X11/rgb.txt \
4090 /usr/X11R4/lib/X11/rgb.txt \
4091 /usr/local/lib/X11/rgb.txt \
4092 /usr/local/share/X11/rgb.txt \
4093 /usr/lib64/X11/rgb.txt
4095 if test -f "$cf_path" ; then
4102 CF_PATH_SYNTAX(cf_path)
4105 AC_MSG_RESULT($RGB_PATH)
4107 AC_DEFINE_UNQUOTED(RGB_PATH,"$cf_path",[Define to the full pathname of rgb.txt])
4110 if test "$RGB_PATH" = no
4114 AC_SUBST(no_x11_rgb)
4116 dnl ---------------------------------------------------------------------------
4117 dnl CF_XOPEN_CURSES version: 16 updated: 2021/01/02 09:31:20
4119 dnl Test if we should define X/Open source for curses, needed on Digital Unix
4120 dnl 4.x, to see the extended functions, but breaks on IRIX 6.x.
4122 dnl The getbegyx() check is needed for HPUX, which omits legacy macros such
4123 dnl as getbegy(). The latter is better design, but the former is standard.
4124 AC_DEFUN([CF_XOPEN_CURSES],
4126 AC_REQUIRE([CF_CURSES_CPPFLAGS])dnl
4127 AC_CACHE_CHECK(definition to turn on extended curses functions,cf_cv_need_xopen_extension,[
4128 cf_cv_need_xopen_extension=unknown
4131 #include <${cf_cv_ncurses_header:-curses.h}>],[
4132 #if defined(NCURSES_VERSION_PATCH)
4133 #if (NCURSES_VERSION_PATCH < 20100501) && (NCURSES_VERSION_PATCH >= 20100403)
4137 #ifdef NCURSES_VERSION
4139 int check2 = curs_set((int)sizeof(check));
4141 long x = winnstr(stdscr, "", 0);
4143 #ifdef NCURSES_VERSION
4146 getbegyx(stdscr, y1, x1);
4151 [cf_cv_need_xopen_extension=none],
4153 for cf_try_xopen_extension in _XOPEN_SOURCE_EXTENDED NCURSES_WIDECHAR
4156 #define $cf_try_xopen_extension 1
4158 #include <${cf_cv_ncurses_header:-curses.h}>],[
4159 #ifdef NCURSES_VERSION
4161 int check2 = curs_set((int)sizeof(check));
4163 long x = winnstr(stdscr, "", 0);
4165 getbegyx(stdscr, y1, x1);
4166 #ifdef NCURSES_VERSION
4173 [cf_cv_need_xopen_extension=$cf_try_xopen_extension; break])
4178 case "$cf_cv_need_xopen_extension" in
4180 CF_APPEND_TEXT(CPPFLAGS,-D$cf_cv_need_xopen_extension)
4185 dnl ---------------------------------------------------------------------------
4186 dnl CF_XOPEN_SOURCE version: 57 updated: 2021/01/01 16:53:59
4188 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
4189 dnl or adapt to the vendor's definitions to get equivalent functionality,
4190 dnl without losing the common non-POSIX features.
4193 dnl $1 is the nominal value for _XOPEN_SOURCE
4194 dnl $2 is the nominal value for _POSIX_C_SOURCE
4195 AC_DEFUN([CF_XOPEN_SOURCE],[
4196 AC_REQUIRE([AC_CANONICAL_HOST])
4197 AC_REQUIRE([CF_POSIX_VISIBLE])
4199 if test "$cf_cv_posix_visible" = no; then
4201 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
4202 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
4207 cf_xopen_source="-D_ALL_SOURCE"
4213 cf_xopen_source="-D_APPLE_C_SOURCE"
4216 cf_xopen_source="-D_DARWIN_C_SOURCE"
4219 (freebsd*|dragonfly*|midnightbsd*)
4220 # 5.x headers associate
4221 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
4222 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
4223 cf_POSIX_C_SOURCE=200112L
4225 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
4228 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
4231 cf_xopen_source="-D_HPUX_SOURCE"
4234 cf_xopen_source="-D_SGI_SOURCE"
4237 (linux*|uclinux*|gnu*|mint*|k*bsd*-gnu|cygwin)
4238 CF_GNU_SOURCE($cf_XOPEN_SOURCE)
4241 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
4244 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
4246 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4249 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
4252 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
4253 cf_xopen_source="-D_BSD_SOURCE"
4257 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
4260 cf_xopen_source="-D_OSF_SOURCE"
4263 cf_xopen_source="-D_QNX_SOURCE"
4266 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
4269 cf_xopen_source="-D__EXTENSIONS__"
4270 cf_cv_xopen_source=broken
4272 (sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
4278 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
4282 if test -n "$cf_xopen_source" ; then
4283 CF_ADD_CFLAGS($cf_xopen_source,true)
4286 dnl In anything but the default case, we may have system-specific setting
4287 dnl which is still not guaranteed to provide all of the entrypoints that
4288 dnl _XOPEN_SOURCE would yield.
4289 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
4290 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
4291 AC_TRY_COMPILE([#include <stdlib.h>],[
4292 #ifndef _XOPEN_SOURCE
4295 [cf_XOPEN_SOURCE_set=yes],
4296 [cf_XOPEN_SOURCE_set=no])
4297 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
4298 if test "$cf_XOPEN_SOURCE_set" = yes
4300 AC_TRY_COMPILE([#include <stdlib.h>],[
4301 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
4304 [cf_XOPEN_SOURCE_set_ok=yes],
4305 [cf_XOPEN_SOURCE_set_ok=no])
4306 if test "$cf_XOPEN_SOURCE_set_ok" = no
4308 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
4314 fi # cf_cv_posix_visible
4316 dnl ---------------------------------------------------------------------------
4317 dnl CF_X_ATHENA version: 24 updated: 2020/03/10 18:53:47
4319 dnl Check for Xaw (Athena) libraries
4321 dnl Sets $cf_x_athena according to the flavor of Xaw which is used.
4322 AC_DEFUN([CF_X_ATHENA],
4324 cf_x_athena=${cf_x_athena:-Xaw}
4326 AC_MSG_CHECKING(if you want to link with Xaw 3d library)
4329 [ --with-Xaw3d link with Xaw 3d library])
4330 if test "$withval" = yes ; then
4337 AC_MSG_CHECKING(if you want to link with Xaw 3d xft library)
4339 AC_ARG_WITH(Xaw3dxft,
4340 [ --with-Xaw3dxft link with Xaw 3d xft library])
4341 if test "$withval" = yes ; then
4342 cf_x_athena=Xaw3dxft
4348 AC_MSG_CHECKING(if you want to link with neXT Athena library)
4351 [ --with-neXtaw link with neXT Athena library])
4352 if test "$withval" = yes ; then
4359 AC_MSG_CHECKING(if you want to link with Athena-Plus library)
4361 AC_ARG_WITH(XawPlus,
4362 [ --with-XawPlus link with Athena-Plus library])
4363 if test "$withval" = yes ; then
4372 if test "$PKG_CONFIG" != none ; then
4374 test "$cf_x_athena" = Xaw && cf_athena_list="xaw8 xaw7 xaw6"
4375 for cf_athena_pkg in \
4378 ${cf_x_athena}-devel \
4380 lib${cf_x_athena}-devel
4382 CF_TRY_PKG_CONFIG($cf_athena_pkg,[
4383 cf_x_athena_lib="$cf_pkgconfig_libs"
4384 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4385 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4389 AC_CACHE_CHECK(for usable $cf_x_athena/Xmu package,cf_cv_xaw_compat,[
4391 #include <X11/Xmu/CharSet.h>
4393 int check = XmuCompareISOLatin1("big", "small");
4395 ],[cf_cv_xaw_compat=yes],[cf_cv_xaw_compat=no])])
4397 if test "$cf_cv_xaw_compat" = no
4399 # workaround for broken ".pc" files...
4400 case "$cf_x_athena_lib" in
4404 CF_VERBOSE(work around broken package)
4406 cf_first_lib=`echo "$cf_save_xmu" | sed -e 's/^[ ][ ]*//' -e 's/ .*//'`
4407 CF_TRY_PKG_CONFIG(xmu,[
4409 CF_ADD_LIB_AFTER($cf_first_lib,$cf_pkgconfig_libs)
4411 CF_ADD_LIB_AFTER($cf_first_lib,-lXmu)
4422 if test -z "$cf_x_athena_lib" ; then
4425 CF_X_ATHENA_CPPFLAGS($cf_x_athena)
4426 CF_X_ATHENA_LIBS($cf_x_athena)
4429 dnl ---------------------------------------------------------------------------
4430 dnl CF_X_ATHENA_CPPFLAGS version: 9 updated: 2020/12/31 10:54:15
4431 dnl --------------------
4432 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4433 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4434 AC_DEFUN([CF_X_ATHENA_CPPFLAGS],
4436 AC_REQUIRE([AC_PATH_XTRA])
4437 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4440 for cf_path in default \
4441 /usr/contrib/X11R6 \
4442 /usr/contrib/X11R5 \
4446 if test -z "$cf_x_athena_inc" ; then
4447 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4448 cf_test=X11/$cf_x_athena_root/SimpleMenu.h
4449 if test "$cf_path" != default ; then
4450 CF_APPEND_TEXT(CPPFLAGS,-I$cf_path/include)
4451 AC_MSG_CHECKING(for $cf_test in $cf_path)
4453 AC_MSG_CHECKING(for $cf_test)
4456 #include <X11/Intrinsic.h>
4457 #include <$cf_test>],[],
4460 AC_MSG_RESULT($cf_result)
4461 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_CPPFLAGS])
4462 if test "$cf_result" = yes ; then
4463 test "$cf_path" = default && cf_x_athena_inc=default
4464 test "$cf_path" != default && cf_x_athena_inc="$cf_path/include"
4470 if test -z "$cf_x_athena_inc" ; then
4471 AC_MSG_WARN([Unable to find Athena header files])
4472 elif test "$cf_x_athena_inc" != default ; then
4473 CF_APPEND_TEXT(CPPFLAGS,-I$cf_x_athena_inc)
4476 dnl ---------------------------------------------------------------------------
4477 dnl CF_X_ATHENA_LIBS version: 13 updated: 2020/01/11 18:16:10
4478 dnl ----------------
4479 dnl Normally invoked by CF_X_ATHENA, with $1 set to the appropriate flavor of
4480 dnl the Athena widgets, e.g., Xaw, Xaw3d, neXtaw.
4481 AC_DEFUN([CF_X_ATHENA_LIBS],
4482 [AC_REQUIRE([CF_X_TOOLKIT])
4483 cf_x_athena_root=ifelse([$1],,Xaw,[$1])
4486 for cf_path in default \
4487 /usr/contrib/X11R6 \
4488 /usr/contrib/X11R5 \
4493 ${cf_x_athena_root} \
4494 ${cf_x_athena_root}7 \
4495 ${cf_x_athena_root}6
4499 "-l$cf_lib -lXpm -lXmu" \
4500 "-l${cf_lib}_s -lXmu_s"
4502 test -n "$cf_x_athena_lib" && break
4504 CF_SAVE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4505 cf_test=XawSimpleMenuAddGlobalActions
4506 test "$cf_path" != default && cf_libs="-L$cf_path/lib $cf_libs"
4507 CF_ADD_LIBS($cf_libs)
4508 AC_MSG_CHECKING(for $cf_test in $cf_libs)
4510 #include <X11/Intrinsic.h>
4511 #include <X11/$cf_x_athena_root/SimpleMenu.h>
4513 $cf_test((XtAppContext) 0)],
4516 AC_MSG_RESULT($cf_result)
4517 CF_RESTORE_XTRA_FLAGS([CF_X_ATHENA_LIBS])
4519 if test "$cf_result" = yes ; then
4520 cf_x_athena_lib="$cf_libs"
4524 test -n "$cf_x_athena_lib" && break
4528 if test -z "$cf_x_athena_lib" ; then
4530 [Unable to successfully link Athena library (-l$cf_x_athena_root) with test program])
4533 CF_ADD_LIBS($cf_x_athena_lib)
4534 CF_UPPER(cf_x_athena_LIBS,HAVE_LIB_$cf_x_athena)
4535 AC_DEFINE_UNQUOTED($cf_x_athena_LIBS)
4537 dnl ---------------------------------------------------------------------------
4538 dnl CF_X_EXT version: 3 updated: 2010/06/02 05:03:05
4540 AC_DEFUN([CF_X_EXT],[
4541 CF_TRY_PKG_CONFIG(Xext,,[
4542 AC_CHECK_LIB(Xext,XextCreateExtension,
4543 [CF_ADD_LIB(Xext)])])
4545 dnl ---------------------------------------------------------------------------
4546 dnl CF_X_TOOLKIT version: 26 updated: 2021/01/02 09:31:20
4548 dnl Check for X Toolkit libraries
4549 AC_DEFUN([CF_X_TOOLKIT],
4551 AC_REQUIRE([AC_PATH_XTRA])
4552 AC_REQUIRE([CF_CHECK_CACHE])
4554 # OSX is schizoid about who owns /usr/X11 (old) versus /opt/X11 (new) (and
4555 # in some cases has installed dummy files in the former, other cases replaced
4556 # it with a link to the new location). This complicates the configure script.
4557 # Check for that pitfall, and recover using pkg-config
4559 # If none of these are set, the configuration is almost certainly broken.
4560 if test -z "${X_CFLAGS}${X_PRE_LIBS}${X_LIBS}${X_EXTRA_LIBS}"
4562 CF_TRY_PKG_CONFIG(x11,,[AC_MSG_WARN(unable to find X11 library)])
4563 CF_TRY_PKG_CONFIG(ice,,[AC_MSG_WARN(unable to find ICE library)])
4564 CF_TRY_PKG_CONFIG(sm,,[AC_MSG_WARN(unable to find SM library)])
4565 CF_TRY_PKG_CONFIG(xt,,[AC_MSG_WARN(unable to find Xt library)])
4567 LIBS="$X_PRE_LIBS $LIBS $X_EXTRA_LIBS"
4572 CF_TRY_PKG_CONFIG(xt,[
4578 # we have an "xt" package, but it may omit Xt's dependency on X11
4579 AC_CACHE_CHECK(for usable X dependency,cf_cv_xt_x11_compat,[
4581 #include <X11/Xlib.h>
4583 int rc1 = XDrawLine((Display*) 0, (Drawable) 0, (GC) 0, 0, 0, 0, 0);
4584 int rc2 = XClearWindow((Display*) 0, (Window) 0);
4585 int rc3 = XMoveWindow((Display*) 0, (Window) 0, 0, 0);
4586 int rc4 = XMoveResizeWindow((Display*)0, (Window)0, 0, 0, 0, 0);
4587 ],[cf_cv_xt_x11_compat=yes],[cf_cv_xt_x11_compat=no])])
4588 if test "$cf_cv_xt_x11_compat" = no
4590 CF_VERBOSE(work around broken X11 dependency)
4591 # 2010/11/19 - good enough until a working Xt on Xcb is delivered.
4592 CF_TRY_PKG_CONFIG(x11,,[CF_ADD_LIB_AFTER(-lXt,-lX11)])
4597 AC_CACHE_CHECK(for usable X Toolkit package,cf_cv_xt_ice_compat,[
4599 #include <X11/Shell.h>
4600 ],[int num = IceConnectionNumber(0); (void) num
4601 ],[cf_cv_xt_ice_compat=yes],[cf_cv_xt_ice_compat=no])])
4603 if test "$cf_cv_xt_ice_compat" = no
4605 # workaround for broken ".pc" files used for X Toolkit.
4606 case "x$X_PRE_LIBS" in
4612 CF_VERBOSE(work around broken ICE dependency)
4613 CF_TRY_PKG_CONFIG(ice,
4614 [CF_TRY_PKG_CONFIG(sm)],
4615 [CF_ADD_LIB_AFTER(-lXt,$X_PRE_LIBS)])
4625 LDFLAGS="$X_LIBS $LDFLAGS"
4626 CF_CHECK_CFLAGS($X_CFLAGS)
4628 AC_CHECK_FUNC(XOpenDisplay,,[
4629 AC_CHECK_LIB(X11,XOpenDisplay,
4630 [CF_ADD_LIB(X11)])])
4632 AC_CHECK_FUNC(XtAppInitialize,,[
4633 AC_CHECK_LIB(Xt, XtAppInitialize,
4634 [AC_DEFINE(HAVE_LIBXT,1,[Define to 1 if we can compile with the Xt library])
4636 LIBS="-lXt $LIBS"])])
4639 if test "$cf_have_X_LIBS" = no ; then
4641 [Unable to successfully link X Toolkit library (-lXt) with
4642 test program. You will have to check and add the proper libraries by hand
4646 dnl ---------------------------------------------------------------------------
4647 dnl CF__CURSES_DATA version: 3 updated: 2021/01/04 19:45:09
4649 dnl Attempt to make a copy of a curses data item. This is needed in the
4650 dnl check-data configure tests when using ncurses, because the symbol may be
4651 dnl actually a function return-value. That could happen if the linker is
4652 dnl broken (does not resolve data-only references), or if ncurses is configured
4653 dnl to support re-entrant code.
4656 define([CF__CURSES_DATA],[
4657 #if defined($2) && ((defined(NCURSES_WRAPPED_VAR) && (NCURSES_VERSION_PATCH < 20200208)) || defined(NCURSES_BROKEN_LINKER) || defined(NCURSES_REENTRANT))
4658 const void *$1 = (const void *)($2);
4660 const void *$1 = &($2);
4662 fprintf(stderr, "testing linkage of $2:%p\\n", (const void *)$1);
4664 dnl ---------------------------------------------------------------------------
4665 dnl CF__CURSES_HEAD version: 2 updated: 2010/10/23 15:54:49
4667 dnl Define a reusable chunk which includes <curses.h> and <term.h> when they
4668 dnl are both available.
4669 define([CF__CURSES_HEAD],[
4671 #include <xcurses.h>
4672 char * XCursesProgramName = "test";
4674 #include <${cf_cv_ncurses_header:-curses.h}>
4675 #if defined(NCURSES_VERSION) && defined(HAVE_NCURSESW_TERM_H)
4676 #include <ncursesw/term.h>
4677 #elif defined(NCURSES_VERSION) && defined(HAVE_NCURSES_TERM_H)
4678 #include <ncurses/term.h>
4679 #elif defined(HAVE_TERM_H)