1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2012 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.2.50)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 OPTION_DEFAULT_ON([sync-input],[process async input synchronously])
132 if test "$with_sync_input" = yes; then
133 AC_DEFINE(SYNC_INPUT, 1, [Process async input synchronously.])
136 dnl FIXME currently it is not the last.
137 dnl This should be the last --with option, because --with-x is
138 dnl added later on when we find the path of X, and it's best to
139 dnl keep them together visually.
140 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
141 [use an X toolkit (KIT one of: yes or gtk, gtk3, lucid or athena, motif, no)])],
142 [ case "${withval}" in
143 y | ye | yes ) val=gtk ;;
145 l | lu | luc | luci | lucid ) val=lucid ;;
146 a | at | ath | athe | athen | athena ) val=athena ;;
147 m | mo | mot | moti | motif ) val=motif ;;
148 g | gt | gtk ) val=gtk ;;
151 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
152 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk' or
153 `gtk3'. `yes' and `gtk' are synonyms. `athena' and `lucid' are synonyms.])
159 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
160 if test "$with_wide_int" = yes; then
161 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
164 dnl _ON results in a '--without' option in the --help output, so
165 dnl the help text should refer to "don't compile", etc.
166 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
167 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
168 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
169 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
170 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
171 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
172 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
173 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
175 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
176 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
177 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
179 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
180 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
181 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
182 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
184 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
185 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
186 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
187 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
188 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
189 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
191 ## For the times when you want to build Emacs but don't have
192 ## a suitable makeinfo, and can live without the manuals.
193 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
194 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
196 ## Makefile.in needs the cache file name.
199 ## This is an option because I do not know if all info/man support
200 ## compressed files, nor how to test if they do so.
201 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
202 if test $with_compress_info = yes; then
209 AC_ARG_WITH([pkg-config-prog],dnl
210 [AS_HELP_STRING([--with-pkg-config-prog=PATH],
211 [path to pkg-config for finding GTK and librsvg])])
212 if test "X${with_pkg_config_prog}" != X; then
213 if test "${with_pkg_config_prog}" != yes; then
214 PKG_CONFIG="${with_pkg_config_prog}"
219 AC_ARG_WITH([crt-dir],dnl
220 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
221 The default is /usr/lib, or /usr/lib64 on some platforms.])])
222 CRT_DIR="${with_crt_dir}"
224 AC_ARG_WITH(gameuser,dnl
225 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
226 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
227 && gameuser="${with_gameuser}"
228 test "X$gameuser" = X && gameuser=games
230 AC_ARG_WITH([gnustep-conf],dnl
231 [AS_HELP_STRING([--with-gnustep-conf=PATH],[path to GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
232 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
233 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
234 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
235 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
237 AC_ARG_ENABLE(ns-self-contained,
238 [AS_HELP_STRING([--disable-ns-self-contained],
239 [disable self contained build under NeXTstep])],
240 EN_NS_SELF_CONTAINED=$enableval,
241 EN_NS_SELF_CONTAINED=yes)
243 AC_ARG_ENABLE(locallisppath,
244 [AS_HELP_STRING([--enable-locallisppath=PATH],
245 [directories Emacs should search for lisp files specific
247 if test "${enableval}" = "no"; then
249 elif test "${enableval}" != "yes"; then
250 locallisppath=${enableval}
253 AC_ARG_ENABLE(checking,
254 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
255 [enable expensive run-time checks. With LIST,
256 enable only specific categories of checks.
257 Categories are: all,yes,no.
258 Flags are: stringbytes, stringoverrun, stringfreelist,
259 xmallocoverrun, conslist, glyphs])],
260 [ac_checking_flags="${enableval}"],[])
261 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
262 for check in $ac_checking_flags
265 # these set all the flags to specific states
266 yes) ac_enable_checking=1 ;;
267 no) ac_enable_checking= ;
268 ac_gc_check_stringbytes= ;
269 ac_gc_check_string_overrun= ;
270 ac_gc_check_string_free_list= ;
271 ac_xmalloc_overrun= ;
272 ac_gc_check_cons_list= ;
274 all) ac_enable_checking=1 ;
275 ac_gc_check_stringbytes=1 ;
276 ac_gc_check_string_overrun=1 ;
277 ac_gc_check_string_free_list=1 ;
278 ac_xmalloc_overrun=1 ;
279 ac_gc_check_cons_list=1 ;
281 # these enable particular checks
282 stringbytes) ac_gc_check_stringbytes=1 ;;
283 stringoverrun) ac_gc_check_string_overrun=1 ;;
284 stringfreelist) ac_gc_check_string_free_list=1 ;;
285 xmallocoverrun) ac_xmalloc_overrun=1 ;;
286 conslist) ac_gc_check_cons_list=1 ;;
287 glyphs) ac_glyphs_debug=1 ;;
288 *) AC_MSG_ERROR(unknown check category $check) ;;
293 if test x$ac_enable_checking != x ; then
294 AC_DEFINE(ENABLE_CHECKING, 1,
295 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
297 if test x$ac_gc_check_stringbytes != x ; then
298 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
299 [Define this temporarily to hunt a bug. If defined, the size of
300 strings is redundantly recorded in sdata structures so that it can
301 be compared to the sizes recorded in Lisp strings.])
303 if test x$ac_gc_check_string_overrun != x ; then
304 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
305 [Define this to check for short string overrun.])
307 if test x$ac_gc_check_string_free_list != x ; then
308 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
309 [Define this to check the string free list.])
311 if test x$ac_xmalloc_overrun != x ; then
312 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
313 [Define this to check for malloc buffer overrun.])
315 if test x$ac_gc_check_cons_list != x ; then
316 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
317 [Define this to check for errors in cons list.])
319 if test x$ac_glyphs_debug != x ; then
320 AC_DEFINE(GLYPH_DEBUG, 1,
321 [Define this to enable glyphs debugging code.])
324 AC_ARG_ENABLE(check-lisp-object-type,
325 [AS_HELP_STRING([--enable-check-lisp-object-type],
326 [enable compile time checks for the Lisp_Object data type.
327 This is useful for development for catching certain types of bugs.])],
328 if test "${enableval}" != "no"; then
329 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
330 [Define this to enable compile time checks for the Lisp_Object data type.])
334 AC_ARG_ENABLE(profiling,
335 [AS_HELP_STRING([--enable-profiling],
336 [build emacs with profiling support.
337 This might not work on all platforms])],
338 [ac_enable_profiling="${enableval}"],[])
339 if test x$ac_enable_profiling != x ; then
340 PROFILING_CFLAGS="-DPROFILING=1 -pg"
344 AC_SUBST(PROFILING_CFLAGS)
346 AC_ARG_ENABLE(autodepend,
347 [AS_HELP_STRING([--enable-autodepend],
348 [automatically generate dependencies to .h-files.
349 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
351 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
353 #### Make srcdir absolute, if it isn't already. It's important to
354 #### avoid running the path through pwd unnecessarily, since pwd can
355 #### give you automounter prefixes, which can go away. We do all this
356 #### so Emacs can find its files when run uninstalled.
357 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
362 ## We may be able to use the $PWD environment variable to make this
363 ## absolute. But sometimes PWD is inaccurate.
364 ## Note: we used to use ${PWD} at the end instead of `pwd`,
365 ## but that tested only for a well-formed and valid PWD,
366 ## it did not object when PWD was well-formed and valid but just wrong.
367 if test ".${PWD}" != "." && test ".`(cd ${PWD} ; sh -c pwd)`" = ".`pwd`" ;
371 srcdir="`(cd ${srcdir}; pwd)`"
374 * ) srcdir="`(cd ${srcdir}; pwd)`" ;;
377 ### Canonicalize the configuration name.
381 configuration=${host_alias-${build_alias-$host}}
383 dnl This used to use changequote, but, apart from `changequote is evil'
384 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
385 dnl the great gob of text. Thus it's not processed for possible expansion.
386 dnl Just make sure the brackets remain balanced.
388 dnl Since Emacs can't find matching pairs of quotes, boundaries are
389 dnl indicated by comments.
393 ### If you add support for a new configuration, add code to this
394 ### switch statement to recognize your configuration name and select
395 ### the appropriate operating system file.
397 ### You would hope that you could choose an s/*.h
398 ### file based on the operating system portion. However, it turns out
399 ### that each s/*.h file is pretty manufacturer-specific.
400 ### So we basically have to have a special case for each
401 ### configuration name.
403 ### As far as handling version numbers on operating systems is
404 ### concerned, make sure things will fail in a fixable way. If
405 ### /etc/MACHINES doesn't say anything about version numbers, be
406 ### prepared to handle anything reasonably. If version numbers
407 ### matter, be sure /etc/MACHINES says something about it.
410 case "${canonical}" in
412 ## GNU/Linux and similar ports
422 ## FreeBSD kernel + glibc based userland
437 ## Apple Darwin / Mac OS X
439 case "${canonical}" in
446 ## Use fink packages if available.
447 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
448 ## if test -d /sw/include && test -d /sw/lib; then
449 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
450 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
454 ## HP 9000 series 700 and 800, running HP/UX
458 hppa*-hp-hpux1[1-9]* )
460 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
464 rs6000-ibm-aix4.[23]* )
467 powerpc-ibm-aix4.[23]* )
470 rs6000-ibm-aix[56]* )
473 powerpc-ibm-aix[56]* )
477 ## Silicon Graphics machines
481 # Without defining _LANGUAGE_C, things get masked out in the headers
482 # so that, for instance, grepping for `free' in stdlib.h fails and
483 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
484 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
489 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
490 | x86_64-*-solaris2* | x86_64-*-sunos5*)
491 case "${canonical}" in
493 amd64-*-*|x86_64-*-*) ;;
497 case "${canonical}" in
498 *-sunos5.6* | *-solaris2.6* )
502 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
504 emacs_check_sunpro_c=yes
506 *-sunos5* | *-solaris* )
508 emacs_check_sunpro_c=yes
511 ## Watch out for a compiler that we know will not work.
512 case "${canonical}" in
513 *-solaris* | *-sunos5* )
514 if [ "x$CC" = x/usr/ucb/cc ]; then
515 ## /usr/ucb/cc doesn't work;
516 ## we should find some other compiler that does work.
524 ## Intel 386 machines where we don't care about the manufacturer.
526 case "${canonical}" in
527 *-cygwin ) opsys=cygwin ;;
528 *-darwin* ) opsys=darwin ;;
529 *-sysv4.2uw* ) opsys=unixware ;;
530 *-sysv5uw* ) opsys=unixware ;;
531 *-sysv5OpenUNIX* ) opsys=unixware ;;
532 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
541 ### If the code above didn't choose an operating system, just choose
542 ### an operating system based on the configuration name. You really
543 ### only want to use this when you have no idea what the right
544 ### operating system is; if you know what operating systems a machine
545 ### runs, it's cleaner to make it explicit in the case statement
547 if test x"${opsys}" = x; then
548 case "${canonical}" in
549 *-gnu* ) opsys=gnu ;;
559 if test $unported = yes; then
560 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
561 Check `etc/MACHINES' for recognized configuration names.])
565 #### Choose a compiler.
567 dnl Sets GCC=yes if using gcc.
571 if test x$GCC = xyes; then
572 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
574 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
577 # Initialize gnulib right after choosing the compiler.
580 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
581 # if -g3 works and the user does not specify CFLAGS.
582 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
583 if test "$ac_test_CFLAGS" != set; then
586 emacs_g3_CFLAGS='-g3';;
588 emacs_g3_CFLAGS='-g3 -O2';;
592 if test -n "$emacs_g3_CFLAGS"; then
593 emacs_save_CFLAGS=$CFLAGS
594 CFLAGS=$emacs_g3_CFLAGS
595 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
596 [emacs_cv_prog_cc_g3],
597 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
598 [emacs_cv_prog_cc_g3=yes],
599 [emacs_cv_prog_cc_g3=no])])
600 if test $emacs_cv_prog_cc_g3 = yes; then
601 CFLAGS=$emacs_g3_CFLAGS
603 CFLAGS=$emacs_save_CFLAGS
608 AC_ARG_ENABLE([gcc-warnings],
609 [AS_HELP_STRING([--enable-gcc-warnings],
610 [turn on lots of GCC warnings. This is intended for
611 developers, and may generate false alarms when used
612 with older or non-GNU development tools.])],
615 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
617 gl_gcc_warnings=$enableval],
621 AC_ARG_ENABLE(link-time-optimization,
622 [AS_HELP_STRING([--enable-link-time-optimization],
623 [build emacs with link-time optimization.
624 This is supported only for GCC since 4.5.0.])],
625 if test "${enableval}" != "no"; then
626 AC_MSG_CHECKING([whether link-time optimization is supported])
628 if test x$GCC = xyes; then
629 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
630 if test x$CPUS != x; then
636 CFLAGS="$CFLAGS $LTO"
637 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
638 [ac_lto_supported=yes], [ac_lto_supported=no])
641 AC_MSG_RESULT([$ac_lto_supported])
642 if test "$ac_lto_supported" = "yes"; then
643 CFLAGS="$CFLAGS $LTO"
647 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
648 # ------------------------------------------------
649 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
650 # Otherwise, run RUN-IF-NOT-FOUND.
651 AC_DEFUN([gl_GCC_VERSION_IFELSE],
655 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
658 # error "your version of gcc is older than $1.$2"
665 # When compiling with GCC, prefer -isystem to -I when including system
666 # include files, to avoid generating useless diagnostics for the files.
667 if test "$gl_gcc_warnings" != yes; then
672 # This, $nw, is the list of warnings we disable.
675 case $with_x_toolkit in
676 lucid | athena | motif)
677 # Old toolkits mishandle 'const'.
678 nw="$nw -Wwrite-strings"
681 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
684 AC_SUBST([WERROR_CFLAGS])
686 nw="$nw -Waggregate-return" # anachronistic
687 nw="$nw -Wlong-long" # C90 is anachronistic
688 nw="$nw -Wc++-compat" # We don't care about C++ compilers
689 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
690 nw="$nw -Wtraditional" # Warns on #elif which we use often
691 nw="$nw -Wcast-qual" # Too many warnings for now
692 nw="$nw -Wconversion" # Too many warnings for now
693 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
694 nw="$nw -Wsign-conversion" # Too many warnings for now
695 nw="$nw -Woverlength-strings" # Not a problem these days
696 nw="$nw -Wtraditional-conversion" # Too many warnings for now
697 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
698 nw="$nw -Wpadded" # Our structs are not padded
699 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
700 nw="$nw -Wlogical-op" # any use of fwrite provokes this
701 nw="$nw -Wformat-nonliteral" # we do this a lot
702 nw="$nw -Wvla" # warnings in gettext.h
703 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
704 nw="$nw -Wswitch-enum" # Too many warnings for now
705 nw="$nw -Wswitch-default" # Too many warnings for now
706 nw="$nw -Wfloat-equal" # warns about high-quality code
707 nw="$nw -Winline" # OK to ignore 'inline'
708 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
709 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
710 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
712 # Emacs doesn't care about shadowing; see
713 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
716 # The following lines should be removable at some point.
717 nw="$nw -Wstack-protector"
718 nw="$nw -Wstrict-overflow"
719 nw="$nw -Wsuggest-attribute=pure"
721 gl_MANYWARN_ALL_GCC([ws])
722 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
726 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
727 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
728 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
729 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
730 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
731 gl_WARN_ADD([-Wno-format-nonliteral])
733 # In spite of excluding -Wlogical-op above, it is enabled, as of
734 # gcc 4.5.0 20090517.
735 gl_WARN_ADD([-Wno-logical-op])
737 gl_WARN_ADD([-fdiagnostics-show-option])
738 gl_WARN_ADD([-funit-at-a-time])
740 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
741 AH_VERBATIM([FORTIFY_SOURCE],
742 [/* Enable compile-time and run-time bounds-checking, and some warnings,
743 without upsetting glibc 2.15+. */
744 #if defined __OPTIMIZE__ && __OPTIMIZE__
745 # define _FORTIFY_SOURCE 2
748 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
750 # We use a slightly smaller set of warning options for lib/.
751 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
753 nw="$nw -Wunused-macros"
755 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
756 AC_SUBST([GNULIB_WARN_CFLAGS])
761 dnl Some other nice autoconf tests.
762 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
765 dnl if test "x$RANLIB" = x; then
770 AC_PATH_PROG(INSTALL_INFO, install-info, :,
771 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
772 dnl Don't use GZIP, which is used by gzip for additional parameters.
773 AC_PATH_PROG(GZIP_PROG, gzip)
775 if test $opsys = gnu-linux; then
776 AC_PATH_PROG(PAXCTL, paxctl,,
777 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
778 if test "X$PAXCTL" != X; then
779 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
780 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
781 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
782 else AC_MSG_RESULT(no); PAXCTL=""; fi])
786 ## Need makeinfo >= 4.7 (?) to build the manuals.
787 AC_PATH_PROG(MAKEINFO, makeinfo, no)
788 dnl By this stage, configure has already checked for egrep and set EGREP,
789 dnl or exited with an error if no egrep was found.
790 if test "$MAKEINFO" != "no" && \
791 test x"`$MAKEINFO --version 2> /dev/null | $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'`" = x; then
795 ## Makeinfo is unusual. For a released Emacs, the manuals are
796 ## pre-built, and not deleted by the normal clean rules. makeinfo is
797 ## therefore in the category of "special tools" not normally required, which
798 ## configure does not have to check for (eg autoconf itself).
799 ## In a Bazaar checkout on the other hand, the manuals are not included.
800 ## So makeinfo is a requirement to build from Bazaar, and configure
801 ## should test for it as it does for any other build requirement.
802 ## We use the presence of $srcdir/info/emacs to distinguish a release,
803 ## with pre-built manuals, from a Bazaar checkout.
806 if test "$MAKEINFO" = "no"; then
808 if test "x${with_makeinfo}" = "xno"; then
810 elif test ! -e $srcdir/info/emacs; then
811 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
812 source tree does not seem to have pre-built manuals in the `info' directory.
813 Either install a suitable version of makeinfo, or re-run configure
814 with the `--without-makeinfo' option to build without the manuals.] )
817 AC_SUBST(HAVE_MAKEINFO)
819 dnl Just so that there is only a single place we need to edit.
825 dnl Add our options to ac_link now, after it is set up.
827 if test x$GCC = xyes; then
828 test "x$GCC_LINK_TEST_OPTIONS" != x && \
829 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
831 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
832 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
835 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
836 dnl If we can link with the flag, it shouldn't do any harm anyhow.
837 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
838 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
839 dnl if not built to support GNU ld.
841 late_LDFLAGS=$LDFLAGS
842 if test x$GCC = xyes; then
843 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
845 LDFLAGS="$LDFLAGS -znocombreloc"
848 AC_MSG_CHECKING([for -znocombreloc])
849 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
850 [AC_MSG_RESULT(yes)],
851 LDFLAGS=$late_LDFLAGS
855 dnl The function dump-emacs will not be defined and temacs will do
856 dnl (load "loadup") automatically unless told otherwise.
857 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
859 your-opsys-here) CANNOT_DUMP=yes ;;
862 test "$CANNOT_DUMP" = "yes" && \
863 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
865 AC_SUBST(CANNOT_DUMP)
870 # MSDOS uses unexcoff.o
871 # MSWindows uses unexw32.o
879 UNEXEC_OBJ=unexmacosx.o
882 UNEXEC_OBJ=unexhp9k800.o
885 # Use the Solaris dldump() function, called from unexsol.c, to dump
886 # emacs, instead of the generic ELF dump code found in unexelf.c.
887 # The resulting binary has a complete symbol table, and is better
888 # for debugging and other observability tools (debuggers, pstack, etc).
890 # If you encounter a problem using dldump(), please consider sending
891 # a message to the OpenSolaris tools-linking mailing list:
892 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
894 # It is likely that dldump() works with older Solaris too, but this has
895 # not been tested, so for now this change is for Solaris 10 or newer.
903 ## Let `ld' find image libs and similar things in /usr/local/lib.
904 ## The system compiler, GCC, has apparently been modified to not
905 ## look there, contrary to what a stock GCC would do.
906 ### It's not our place to do this. See bug#10313#17.
907 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
912 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
913 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
917 ### It's not our place to do this. See bug#10313#17.
918 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
923 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
924 ## otherwise Emacs dumps core on elf systems.
925 LD_SWITCH_SYSTEM="-Z"
928 AC_SUBST(LD_SWITCH_SYSTEM)
930 ac_link="$ac_link $LD_SWITCH_SYSTEM"
932 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
933 ## which has not been defined yet. When this was handled with cpp,
934 ## it was expanded to null when configure sourced the s/*.h file.
935 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
936 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
937 ## (or somesuch), but because it is supposed to go at the _front_
938 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
939 ## Compare with the gnu-linux case below, which added to the end
940 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
941 ## LD_SWITCH_SYSTEM_TEMACS.
944 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
951 AC_CHECK_DECL([__ELF__])
952 if test "$ac_cv_have_decl___ELF__" = "yes"; then
953 ## With ELF, make sure that all common symbols get allocated to in the
954 ## data section. Otherwise, the dump of temacs may miss variables in
955 ## the shared library that have been initialized. For example, with
956 ## GNU libc, __malloc_initialized would normally be resolved to the
957 ## shared library's .bss section, which is fatal.
958 if test "x$GCC" = "xyes"; then
959 C_SWITCH_MACHINE="-fno-common"
961 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
964 UNEXEC_OBJ=unexalpha.o
968 AC_SUBST(C_SWITCH_MACHINE)
973 ## Some programs in src produce warnings saying certain subprograms
974 ## are too complex and need a MAXMEM value greater than 2000 for
975 ## additional optimization. --nils@exp-math.uni-essen.de
976 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
977 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
978 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
979 ## It is redundant in glibc2, since we define _GNU_SOURCE.
980 AC_SUBST(C_SWITCH_SYSTEM)
985 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
986 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
988 freebsd) LIBS_SYSTEM="-lutil" ;;
990 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
992 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
994 ## Motif needs -lgen.
995 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
997 AC_SUBST(LIBS_SYSTEM)
1000 ### Make sure subsequent tests use flags consistent with the build flags.
1002 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1003 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1005 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1008 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1009 AC_DEFUN([AC_TYPE_SIZE_T])
1010 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1011 AC_DEFUN([AC_TYPE_UID_T])
1017 dnl Current possibilities handled by sed (aix4-2 -> aix,
1018 dnl gnu-linux -> gnu/linux, etc.):
1019 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1020 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1021 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1023 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1027 START_FILES='pre-crt0.o'
1030 ## Adding -lm confuses the dynamic linker, so omit it.
1032 START_FILES='pre-crt0.o'
1035 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1036 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1037 SYSTEM_TYPE=berkeley-unix
1039 gnu-linux | gnu-kfreebsd )
1040 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1041 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1043 hpux10-20 | hpux11 )
1045 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1047 dnl NB this may be adjusted below.
1049 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1050 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1051 SYSTEM_TYPE=berkeley-unix
1055 SYSTEM_TYPE=usg-unix-v
1061 AC_SUBST(START_FILES)
1062 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1063 [The type of system you are compiling for; sets `system-type'.])
1065 dnl Not all platforms use crtn.o files. Check if the current one does.
1068 for file in x $LIB_STANDARD $START_FILES; do
1070 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1074 if test "x$crt_files" != x; then
1076 ## If user specified a crt-dir, use that unconditionally.
1079 if test "X$CRT_DIR" = "X"; then
1081 CRT_DIR=/usr/lib # default
1083 case "$canonical" in
1084 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1085 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1086 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1087 ## For anything else (eg /usr/lib32), it is up the user to specify
1088 ## the location (bug#5655).
1089 ## Test for crtn.o, not just the directory, because sometimes the
1090 ## directory exists but does not have the relevant files (bug#1287).
1091 ## FIXME better to test for binary compatibility somehow.
1092 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1095 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1099 hpux10-20) CRT_DIR=/lib ;;
1102 test "x${GCC}" = xyes && crt_gcc=yes
1108 for file in $crt_files; do
1110 ## If we're using gcc, try to determine it automatically by asking
1111 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1112 ## system-dependent default from above.]
1113 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1115 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1118 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1123 dnl We expect all the files to be in a single directory, so after the
1124 dnl first there is no point asking gcc.
1127 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1130 test "x$crt_missing" = x || \
1131 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1132 Try using the --with-crt-dir option.])
1134 fi # crt_files != ""
1140 if test -f $CRT_DIR/crti.o; then
1142 test -f $CRT_DIR/crtn.o || \
1143 AC_MSG_ERROR([Required file not found: crtn.o])
1145 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1146 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1152 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1153 pre_PKG_CONFIG_LIBS=$LIBS
1155 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1157 dnl This function definition taken from Gnome 2.0
1158 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1159 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1160 dnl also defines GSTUFF_PKG_ERRORS on error
1161 AC_DEFUN([PKG_CHECK_MODULES], [
1164 if test "$PKG_CONFIG" = "no" ; then
1165 ifelse([$4], , [AC_MSG_ERROR([
1166 *** The pkg-config script could not be found. Make sure it is in your path, or give the full path to pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog. Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1168 PKG_CONFIG_MIN_VERSION=0.9.0
1169 if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1170 AC_MSG_CHECKING(for $2)
1172 if $PKG_CONFIG --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1173 $1_CFLAGS=`$PKG_CONFIG --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1174 $1_LIBS=`$PKG_CONFIG --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1181 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1182 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1183 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1189 ## If we have a custom action on failure, don't print errors, but
1190 ## do set a variable so people can do so.
1191 $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1192 ifelse([$4], ,echo $$1_PKG_ERRORS,)
1198 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1199 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1203 if test $succeeded = yes; then
1204 ifelse([$3], , :, [$3])
1206 ifelse([$4], , [AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.])], [$4])
1211 if test "${with_sound}" != "no"; then
1212 # Sound support for GNU/Linux and the free BSDs.
1213 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1214 have_sound_header=yes)
1215 # Emulation library used on NetBSD.
1216 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1220 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1221 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1222 if test $HAVE_ALSA = yes; then
1223 SAVE_CFLAGS="$CFLAGS"
1225 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1226 LIBS="$ALSA_LIBS $LIBS"
1227 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1228 emacs_alsa_normal=yes,
1229 emacs_alsa_normal=no)
1230 if test "$emacs_alsa_normal" != yes; then
1231 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1232 [[snd_lib_error_set_handler (0);]])],
1233 emacs_alsa_subdir=yes,
1234 emacs_alsa_subdir=no)
1235 if test "$emacs_alsa_subdir" != yes; then
1236 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1238 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1241 CFLAGS="$SAVE_CFLAGS"
1243 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1244 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1245 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1248 dnl Define HAVE_SOUND if we have sound support. We know it works and
1249 dnl compiles only on the specified platforms. For others, it
1250 dnl probably doesn't make sense to try.
1251 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1253 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1254 gnu-linux|freebsd|netbsd)
1255 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1260 AC_SUBST(CFLAGS_SOUND)
1263 dnl checks for header files
1264 AC_CHECK_HEADERS_ONCE(
1265 linux/version.h sys/systeminfo.h
1266 stdio_ext.h fcntl.h coff.h pty.h
1267 sys/vlimit.h sys/resource.h
1268 sys/utsname.h pwd.h utmp.h dirent.h util.h)
1270 AC_MSG_CHECKING(if personality LINUX32 can be set)
1271 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1272 emacs_cv_personality_linux32=yes,
1273 emacs_cv_personality_linux32=no)
1274 AC_MSG_RESULT($emacs_cv_personality_linux32)
1276 if test $emacs_cv_personality_linux32 = yes; then
1277 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1278 [Define to 1 if personality LINUX32 can be set.])
1281 dnl On Solaris 8 there's a compilation warning for term.h because
1282 dnl it doesn't define `bool'.
1283 AC_CHECK_HEADERS(term.h, , , -)
1285 AC_CHECK_DECLS([sys_siglist])
1286 if test $ac_cv_have_decl_sys_siglist != yes; then
1287 # For Tru64, at least:
1288 AC_CHECK_DECLS([__sys_siglist])
1289 if test $ac_cv_have_decl___sys_siglist = yes; then
1290 AC_DEFINE(sys_siglist, __sys_siglist,
1291 [Define to any substitute for sys_siglist.])
1296 dnl Check for speed_t typedef.
1297 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1298 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1299 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1300 if test $emacs_cv_speed_t = yes; then
1301 AC_DEFINE(HAVE_SPEED_T, 1,
1302 [Define to 1 if `speed_t' is declared by <termios.h>.])
1305 AC_CACHE_CHECK(for struct exception, emacs_cv_struct_exception,
1306 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],
1307 [[static struct exception x; x.arg1 = x.arg2 = x.retval; x.name = ""; x.type = 1;]])],
1308 emacs_cv_struct_exception=yes, emacs_cv_struct_exception=no))
1309 HAVE_EXCEPTION=$emacs_cv_struct_exception
1310 dnl Define on Darwin so emacs symbols will not conflict with those
1311 dnl in the System framework. Otherwise -prebind will not work.
1312 if test $emacs_cv_struct_exception != yes || test $opsys = darwin; then
1313 AC_DEFINE(NO_MATHERR, 1, [Define to 1 if you don't have struct exception in math.h.])
1316 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1317 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1318 #if HAVE_SYS_SOCKET_H
1319 #include <sys/socket.h>
1321 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1322 #if HAVE_SYS_SOCKET_H
1323 #include <sys/socket.h>
1325 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1326 #if HAVE_SYS_SOCKET_H
1327 #include <sys/socket.h>
1330 dnl checks for structure members
1331 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1332 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1333 struct ifreq.ifr_addr,
1334 struct ifreq.ifr_addr.sa_len], , ,
1335 [AC_INCLUDES_DEFAULT
1336 #if HAVE_SYS_SOCKET_H
1337 #include <sys/socket.h>
1343 dnl Check for endianness.
1344 dnl AC_C_BIGENDIAN is done by gnulib.
1346 dnl check for Make feature
1347 dnl AC_PROG_MAKE_SET is done by Automake.
1352 dnl check for GNU Make if we have GCC and autodepend is on.
1353 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1354 AC_MSG_CHECKING([whether we are using GNU Make])
1356 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1357 if test "x$testval" != x; then
1360 ac_enable_autodepend=no
1362 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1363 if test $HAVE_GNU_MAKE = yes; then
1364 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1365 SAVE_CFLAGS="$CFLAGS"
1366 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1367 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1368 CFLAGS="$SAVE_CFLAGS"
1369 test -f deps.d || ac_enable_autodepend=no
1371 AC_MSG_RESULT([$ac_enable_autodepend])
1373 if test $ac_enable_autodepend = yes; then
1374 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1375 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1376 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1377 deps_frag=autodeps.mk
1380 deps_frag=$srcdir/src/$deps_frag
1383 AC_SUBST_FILE(deps_frag)
1386 lisp_frag=$srcdir/src/lisp.mk
1387 AC_SUBST_FILE(lisp_frag)
1390 dnl checks for operating system services
1391 AC_SYS_LONG_FILE_NAMES
1393 #### Choose a window system.
1395 ## We leave window_system equal to none if
1396 ## we end up building without one. Any new window system should
1397 ## set window_system to an appropriate value and add objects to
1398 ## window-system-specific substs.
1402 if test "$no_x" != yes; then
1406 LD_SWITCH_X_SITE_RPATH=
1407 if test "${x_libraries}" != NONE; then
1408 if test -n "${x_libraries}"; then
1409 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1410 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1412 x_default_search_path=""
1413 x_search_path=${x_libraries}
1414 if test -z "${x_search_path}"; then
1415 x_search_path=/usr/lib
1417 for x_library in `echo ${x_search_path}: | \
1418 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1420 ${x_library}/X11/%L/%T/%N%C%S:\
1421 ${x_library}/X11/%l/%T/%N%C%S:\
1422 ${x_library}/X11/%T/%N%C%S:\
1423 ${x_library}/X11/%L/%T/%N%S:\
1424 ${x_library}/X11/%l/%T/%N%S:\
1425 ${x_library}/X11/%T/%N%S"
1426 if test x"${x_default_search_path}" = x; then
1427 x_default_search_path=${x_search_path}
1429 x_default_search_path="${x_search_path}:${x_default_search_path}"
1433 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1435 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1436 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1439 if test x"${x_includes}" = x; then
1440 bitmapdir=/usr/include/X11/bitmaps
1442 # accumulate include directories that have X11 bitmap subdirectories
1444 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1445 if test -d "${bmd}/X11/bitmaps"; then
1446 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1448 if test -d "${bmd}/bitmaps"; then
1449 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1452 if test ${bmd_acc} != "dummyval"; then
1453 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1460 tmp_CPPFLAGS="$CPPFLAGS"
1461 tmp_CFLAGS="$CFLAGS"
1462 CPPFLAGS="$CPPFLAGS -x objective-c"
1463 CFLAGS="$CFLAGS -x objective-c"
1464 TEMACS_LDFLAGS2="\${LDFLAGS}"
1466 if test "${with_ns}" != no; then
1467 if test "${opsys}" = darwin; then
1469 ns_appdir=`pwd`/nextstep/Emacs.app
1470 ns_appbindir=${ns_appdir}/Contents/MacOS
1471 ns_appresdir=${ns_appdir}/Contents/Resources
1472 ns_appsrc=${srcdir}/nextstep/Cocoa/Emacs.base
1473 elif test -f $GNUSTEP_CONFIG_FILE; then
1475 ns_appdir=`pwd`/nextstep/Emacs.app
1476 ns_appbindir=${ns_appdir}
1477 ns_appresdir=${ns_appdir}/Resources
1478 ns_appsrc=${srcdir}/nextstep/GNUstep/Emacs.base
1479 dnl FIXME sourcing this several times in subshells seems inefficient.
1480 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1481 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1482 dnl I seemed to need these as well with GNUstep-startup 0.25.
1483 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1484 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1485 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1486 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1487 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1488 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1489 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1490 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1491 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1495 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1496 dnl If they had chosen to either define it or not, we could have
1497 dnl just used AC_CHECK_DECL here.
1498 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1499 emacs_cv_objc_exceptions,
1500 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1501 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1505 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1506 if test $emacs_cv_objc_exceptions = yes; then
1507 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1508 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1509 [Define if GNUstep uses ObjC exceptions.])
1510 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1514 dnl This is only used while we test the NS headers, it gets reset below.
1515 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1517 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1518 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1519 files are missing or cannot be compiled.])])
1520 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1522 ns_have_nsinteger=yes,
1523 ns_have_nsinteger=no)
1524 if test $ns_have_nsinteger = yes; then
1525 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1528 AC_SUBST(TEMACS_LDFLAGS2)
1530 INSTALL_ARCH_INDEP_EXTRA=install-etc
1531 ns_self_contained=no
1535 if test "${HAVE_NS}" = yes; then
1536 if test "$with_toolkit_scroll_bars" = "no"; then
1537 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1540 window_system=nextstep
1541 # set up packaging dirs
1542 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1543 ns_self_contained=yes
1544 prefix=${ns_appresdir}
1545 exec_prefix=${ns_appbindir}
1546 dnl This one isn't really used, only archlibdir is.
1547 libexecdir="\${ns_appbindir}/libexec"
1548 archlibdir="\${ns_appbindir}/libexec"
1549 docdir="\${ns_appresdir}/etc"
1550 etcdir="\${ns_appresdir}/etc"
1551 dnl FIXME maybe set datarootdir instead.
1552 dnl That would also get applications, icons, man.
1553 infodir="\${ns_appresdir}/info"
1554 mandir="\${ns_appresdir}/man"
1555 lispdir="\${ns_appresdir}/lisp"
1556 leimdir="\${ns_appresdir}/leim"
1557 INSTALL_ARCH_INDEP_EXTRA=
1559 ns_frag=$srcdir/src/ns.mk
1560 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1562 CFLAGS="$tmp_CFLAGS"
1563 CPPFLAGS="$tmp_CPPFLAGS"
1564 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1565 AC_SUBST(ns_self_contained)
1567 AC_SUBST(NS_OBJC_OBJ)
1568 AC_SUBST(LIB_STANDARD)
1569 AC_SUBST_FILE(ns_frag)
1571 ## $window_system is now set to the window system we will
1579 case "${window_system}" in
1584 case "${with_x_toolkit}" in
1585 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1586 motif ) USE_X_TOOLKIT=MOTIF ;;
1588 term_header=gtkutil.h
1589 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1590 dnl USE_X_TOOLKIT is set.
1591 USE_X_TOOLKIT=none ;;
1592 gtk3 ) with_gtk3=yes
1593 term_header=gtkutil.h
1594 USE_X_TOOLKIT=none ;;
1595 no ) USE_X_TOOLKIT=none ;;
1596 dnl If user did not say whether to use a toolkit, make this decision later:
1597 dnl use the toolkit if we have gtk, or X11R5 or newer.
1598 * ) USE_X_TOOLKIT=maybe ;;
1602 term_header=nsterm.h
1606 if test -n "${term_header}"; then
1607 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1608 [Define to the header for the built-in window system.])
1611 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1612 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1613 if test "$HAVE_XSERVER" = true ||
1614 test -n "$DISPLAY" ||
1615 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1616 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1617 were found. You should install the relevant development files for X
1618 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1619 sure you have development files for image handling, i.e.
1620 tiff, gif, jpeg, png and xpm.
1621 If you are sure you want Emacs compiled without X window support, pass
1627 ### If we're using X11, we should use the X menu package.
1630 yes ) HAVE_MENUS=yes ;;
1633 # Does the opsystem file prohibit the use of the GNU malloc?
1634 # Assume not, until told otherwise.
1638 [whether malloc is Doug Lea style],
1639 [emacs_cv_var_doug_lea_malloc],
1642 [[#include <malloc.h>
1643 static void hook (void) {}]],
1644 [[malloc_set_state (malloc_get_state ());
1645 __after_morecore_hook = hook;
1646 __malloc_initialize_hook = hook;]])],
1647 [emacs_cv_var_doug_lea_malloc=yes],
1648 [emacs_cv_var_doug_lea_malloc=no])])
1649 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1652 dnl See comments in aix4-2.h about maybe using system malloc there.
1655 ## darwin ld insists on the use of malloc routines in the System framework.
1656 darwin|sol2-10) system_malloc=yes ;;
1659 if test "${system_malloc}" = "yes"; then
1660 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1663 (The GNU allocators don't work with this system configuration.)"
1667 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1668 VMLIMIT_OBJ=vm-limit.o
1670 AC_SUBST(GMALLOC_OBJ)
1671 AC_SUBST(VMLIMIT_OBJ)
1673 if test "$doug_lea_malloc" = "yes" ; then
1674 if test "$GNU_MALLOC" = yes ; then
1676 (Using Doug Lea's new malloc from the GNU C Library.)"
1678 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1679 [Define to 1 if you are using the GNU C Library.])
1681 ## Use mmap directly for allocating larger buffers.
1682 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1683 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1684 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1686 gnu*) REL_ALLOC=no ;;
1690 if test x"${REL_ALLOC}" = x; then
1691 REL_ALLOC=${GNU_MALLOC}
1694 use_mmap_for_buffers=no
1696 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1700 if test $use_mmap_for_buffers = yes; then
1701 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1705 LIBS="$LIBS_SYSTEM $LIBS"
1707 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1708 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1709 AC_CHECK_LIB(dnet, dnet_ntoa)
1710 dnl This causes -lresolv to get used in subsequent tests,
1711 dnl which causes failures on some systems such as HPUX 9.
1712 dnl AC_CHECK_LIB(resolv, gethostbyname)
1714 dnl FIXME replace main with a function we actually want from this library.
1715 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1717 dnl Check if pthreads is available.
1719 AC_CHECK_HEADERS_ONCE(pthread.h)
1720 if test "$ac_cv_header_pthread_h"; then
1721 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1722 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1723 dnl testing for pthread_self if Emacs uses gmalloc.c.
1724 if test "$GMALLOC_OBJ" = gmalloc.o; then
1725 emacs_pthread_function=pthread_atfork
1727 emacs_pthread_function=pthread_self
1729 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1731 if test "$HAVE_PTHREAD" = yes; then
1732 case "${canonical}" in
1734 *) LIB_PTHREAD="-lpthread"
1735 LIBS="$LIB_PTHREAD $LIBS" ;;
1737 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1739 AC_SUBST([LIB_PTHREAD])
1741 AC_CHECK_LIB(pthreads, cma_open)
1743 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1744 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1745 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1746 ## added to LIBS in configure would never contain the pthreads part,
1747 ## but the value used in Makefiles might. FIXME?
1749 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1750 ## be harmless on older versions of X where it happens to exist.
1751 test "$opsys" = "aix4-2" && \
1752 test $ac_cv_lib_pthreads_cma_open = yes && \
1753 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1755 dnl Check for need for bigtoc support on IBM AIX
1759 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1761 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1762 *) gdb_cv_bigtoc=-bbigtoc ;;
1765 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1766 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1771 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1772 # used for the tests that follow. We set them back to REAL_CFLAGS and
1773 # REAL_CPPFLAGS later on.
1775 REAL_CFLAGS="$CFLAGS"
1776 REAL_CPPFLAGS="$CPPFLAGS"
1778 if test "${HAVE_X11}" = "yes"; then
1779 DEFS="$C_SWITCH_X_SITE $DEFS"
1780 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1782 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1783 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1785 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1786 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1787 # but it's more convenient here to set LD_RUN_PATH since this
1788 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1789 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1790 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1794 if test "${opsys}" = "gnu-linux"; then
1795 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1796 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1797 [[XOpenDisplay ("foo");]])],
1798 [xgnu_linux_first_failure=no],
1799 [xgnu_linux_first_failure=yes])
1800 if test "${xgnu_linux_first_failure}" = "yes"; then
1801 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1802 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1803 OLD_CPPFLAGS="$CPPFLAGS"
1805 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1806 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1807 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1808 LIBS="$LIBS -b i486-linuxaout"
1809 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1810 [[XOpenDisplay ("foo");]])],
1811 [xgnu_linux_second_failure=no],
1812 [xgnu_linux_second_failure=yes])
1813 if test "${xgnu_linux_second_failure}" = "yes"; then
1814 # If we get the same failure with -b, there is no use adding -b.
1815 # So take it out. This plays safe.
1816 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1817 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1818 CPPFLAGS="$OLD_CPPFLAGS"
1829 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1830 # header files included from there.
1831 AC_MSG_CHECKING(for Xkb)
1832 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1833 #include <X11/XKBlib.h>]],
1834 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1835 emacs_xkb=yes, emacs_xkb=no)
1836 AC_MSG_RESULT($emacs_xkb)
1837 if test $emacs_xkb = yes; then
1838 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1841 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1842 XScreenNumberOfScreen)
1845 if test "${window_system}" = "x11"; then
1846 AC_MSG_CHECKING(X11 version 6)
1847 AC_CACHE_VAL(emacs_cv_x11_version_6,
1848 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1849 [[#if XlibSpecificationRelease < 6
1852 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1853 if test $emacs_cv_x11_version_6 = yes; then
1854 AC_MSG_RESULT(6 or newer)
1855 AC_DEFINE(HAVE_X11R6, 1,
1856 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1857 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1858 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1862 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1863 [Define if you have usable X11R6-style XIM support.])
1867 AC_MSG_RESULT(before 6)
1872 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1874 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1875 if test "${with_rsvg}" != "no"; then
1876 RSVG_REQUIRED=2.11.0
1877 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1879 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1880 AC_SUBST(RSVG_CFLAGS)
1883 if test $HAVE_RSVG = yes; then
1884 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1885 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1886 LIBS="$RSVG_LIBS $LIBS"
1892 if test "${HAVE_X11}" = "yes"; then
1893 if test "${with_imagemagick}" != "no"; then
1894 ## 6.2.8 is the earliest version known to work, but earlier versions
1895 ## might work - let us know if you find one.
1896 ## 6.0.7 does not work. See bug#7955.
1897 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1898 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1899 AC_SUBST(IMAGEMAGICK_CFLAGS)
1900 AC_SUBST(IMAGEMAGICK_LIBS)
1902 if test $HAVE_IMAGEMAGICK = yes; then
1903 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1904 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1905 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1906 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1914 if test "${with_gtk3}" = "yes"; then
1917 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1919 dnl Checks for libraries.
1920 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1921 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1922 AC_MSG_ERROR($GTK_PKG_ERRORS)
1924 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1925 GTK_OBJ=emacsgtkfixed.o
1926 term_header=gtkutil.h
1929 if test "$pkg_check_gtk" != "yes"; then
1931 if test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1934 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1936 dnl Checks for libraries.
1937 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1938 if test "$pkg_check_gtk" = "no" && test "$USE_X_TOOLKIT" != "maybe"; then
1939 AC_MSG_ERROR($GTK_PKG_ERRORS)
1944 if test x"$pkg_check_gtk" = xyes; then
1946 AC_SUBST(GTK_CFLAGS)
1948 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1949 CFLAGS="$CFLAGS $GTK_CFLAGS"
1950 LIBS="$GTK_LIBS $LIBS"
1951 dnl Try to compile a simple GTK program.
1953 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1954 if test "${GTK_COMPILES}" != "yes"; then
1955 if test "$USE_X_TOOLKIT" != "maybe"; then
1956 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1960 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1961 GTK_OBJ="gtkutil.o $GTK_OBJ"
1963 if $PKG_CONFIG --atleast-version=2.10 gtk+-2.0; then
1966 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1967 closing open displays. This is no problem if you just use
1968 one display, but if you use more than one and close one of them
1978 if test "${HAVE_GTK}" = "yes"; then
1980 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1981 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1982 if test "$with_toolkit_scroll_bars" != no; then
1983 with_toolkit_scroll_bars=yes
1986 dnl Check if we have the old file selection dialog declared and
1987 dnl in the link library. In 2.x it may be in the library,
1988 dnl but not declared if deprecated featured has been selected out.
1989 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1990 HAVE_GTK_FILE_SELECTION=no
1991 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1992 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1993 #include <gtk/gtk.h>])
1994 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1995 AC_CHECK_FUNCS(gtk_file_selection_new)
1999 dnl Check for functions introduced in 2.14 and later.
2000 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2001 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2002 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2003 gtk_orientable_set_orientation \
2004 gtk_window_set_has_resize_grip)
2006 term_header=gtkutil.h
2009 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2010 dnl other platforms.
2013 if test "${with_dbus}" = "yes"; then
2014 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2015 if test "$HAVE_DBUS" = yes; then
2016 LIBS="$LIBS $DBUS_LIBS"
2017 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2018 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2019 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2021 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2022 dbus_type_is_valid \
2023 dbus_validate_bus_name \
2024 dbus_validate_path \
2025 dbus_validate_interface \
2026 dbus_validate_member)
2032 dnl GSettings has been tested under GNU/Linux only.
2034 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2035 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2036 if test "$HAVE_GSETTINGS" = "yes"; then
2037 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2038 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2039 SETTINGS_LIBS="$GSETTINGS_LIBS"
2043 dnl GConf has been tested under GNU/Linux only.
2044 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2046 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2047 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2048 if test "$HAVE_GCONF" = yes; then
2049 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2050 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2051 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2052 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2056 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2057 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2058 if test "$HAVE_GOBJECT" = "yes"; then
2059 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2060 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2062 SAVE_CFLAGS="$CFLAGS"
2064 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2065 LIBS="$SETTINGS_LIBS $LIBS"
2066 AC_CHECK_FUNCS([g_type_init])
2067 CFLAGS="$SAVE_CFLAGS"
2070 AC_SUBST(SETTINGS_CFLAGS)
2071 AC_SUBST(SETTINGS_LIBS)
2074 dnl SELinux is available for GNU/Linux only.
2077 if test "${with_selinux}" = "yes"; then
2078 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2079 if test "$HAVE_LIBSELINUX" = yes; then
2080 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2081 LIBSELINUX_LIBS=-lselinux
2084 AC_SUBST(LIBSELINUX_LIBS)
2087 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2088 if test "${with_gnutls}" = "yes" ; then
2089 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2090 if test "${HAVE_GNUTLS}" = "yes"; then
2091 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2094 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2095 LIBS="$LIBGNUTLS_LIBS $LIBS"
2096 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2098 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2099 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2103 AC_SUBST(LIBGNUTLS_LIBS)
2104 AC_SUBST(LIBGNUTLS_CFLAGS)
2106 dnl Do not put whitespace before the #include statements below.
2107 dnl Older compilers (eg sunos4 cc) choke on it.
2110 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2111 if test "$with_xaw3d" != no; then
2112 AC_MSG_CHECKING(for xaw3d)
2113 AC_CACHE_VAL(emacs_cv_xaw3d,
2114 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2115 #include <X11/Intrinsic.h>
2116 #include <X11/Xaw3d/Simple.h>]],
2118 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2119 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2120 emacs_cv_xaw3d=no)])
2124 if test $emacs_cv_xaw3d = yes; then
2125 AC_MSG_RESULT([yes; using Lucid toolkit])
2129 AC_DEFINE(HAVE_XAW3D, 1,
2130 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2133 AC_MSG_CHECKING(for libXaw)
2134 AC_CACHE_VAL(emacs_cv_xaw,
2135 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2136 #include <X11/Intrinsic.h>
2137 #include <X11/Xaw/Simple.h>]],
2141 if test $emacs_cv_xaw = yes; then
2142 AC_MSG_RESULT([yes; using Lucid toolkit])
2145 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2146 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2148 AC_MSG_ERROR([No X toolkit could be found.
2149 If you are sure you want Emacs compiled without an X toolkit, pass
2151 to configure. Otherwise, install the development libraries for the toolkit
2152 that you want to use (e.g. Gtk+) and re-run configure.])
2157 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2160 if test "${USE_X_TOOLKIT}" != "none"; then
2161 AC_MSG_CHECKING(X11 toolkit version)
2162 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2163 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2164 [[#if XtSpecificationRelease < 6
2167 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2168 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2169 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2170 AC_MSG_RESULT(6 or newer)
2171 AC_DEFINE(HAVE_X11XTR6, 1,
2172 [Define to 1 if you have the X11R6 or newer version of Xt.])
2173 LIBXTR6="-lSM -lICE"
2175 ## Use libw.a along with X11R6 Xt.
2176 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2179 AC_MSG_RESULT(before 6)
2182 dnl If using toolkit, check whether libXmu.a exists.
2183 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2185 if test x$HAVE_X11XTR6 = xyes; then
2186 LIBS="-lXt -lSM -lICE $LIBS"
2190 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2191 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2192 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2196 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2197 dnl Why not just test for libxmu in the normal way?
2200 ## These systems don't supply Xmu.
2202 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2207 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2208 if test "${HAVE_X11}" = "yes"; then
2209 if test "${USE_X_TOOLKIT}" != "none"; then
2210 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2215 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2216 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2217 if test -d /usr/include/openmotif; then
2218 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2219 emacs_cv_openmotif=yes
2220 case "$canonical" in
2221 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2222 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2225 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2228 emacs_cv_openmotif=no
2230 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2231 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2232 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2235 Motif version prior to 2.1.
2237 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2238 if test $emacs_cv_motif_version_2_1 = yes; then
2239 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2240 if test x$emacs_cv_openmotif = xyes; then
2241 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2244 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2245 # We put this in CFLAGS temporarily to precede other -I options
2246 # that might be in CFLAGS temporarily.
2247 # We put this in CPPFLAGS where it precedes the other -I options.
2248 OLD_CPPFLAGS=$CPPFLAGS
2250 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2251 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2252 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2254 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2255 if test $emacs_cv_lesstif = yes; then
2256 # Make sure this -I option remains in CPPFLAGS after it is set
2257 # back to REAL_CPPFLAGS.
2258 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2259 # have those other -I options anyway. Ultimately, having this
2260 # directory ultimately in CPPFLAGS will be enough.
2261 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2262 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2265 CPPFLAGS=$OLD_CPPFLAGS
2268 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2269 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2272 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2273 dnl using Motif or Xaw3d is available, and unless
2274 dnl --with-toolkit-scroll-bars=no was specified.
2276 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2277 [Define to 1 if we should use toolkit scroll bars.])dnl
2278 USE_TOOLKIT_SCROLL_BARS=no
2279 if test "${with_toolkit_scroll_bars}" != "no"; then
2280 if test "${USE_X_TOOLKIT}" != "none"; then
2281 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2282 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2284 USE_TOOLKIT_SCROLL_BARS=yes
2285 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2286 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2287 USE_TOOLKIT_SCROLL_BARS=yes
2289 elif test "${HAVE_GTK}" = "yes"; then
2290 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2291 USE_TOOLKIT_SCROLL_BARS=yes
2292 elif test "${HAVE_NS}" = "yes"; then
2293 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2294 USE_TOOLKIT_SCROLL_BARS=yes
2298 dnl See if XIM is available.
2299 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2300 #include <X11/Xlib.h>
2301 #include <X11/Xresource.h>]],
2302 [[XIMProc callback;]])],
2304 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2307 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2309 if test "${with_xim}" != "no"; then
2310 AC_DEFINE(USE_XIM, 1,
2311 [Define to 1 if we should use XIM, if it is available.])
2315 if test "${HAVE_XIM}" != "no"; then
2317 if test "$GCC" = yes; then
2318 CFLAGS="$CFLAGS --pedantic-errors"
2320 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2321 #include <X11/Xlib.h>
2322 #include <X11/Xresource.h>]],
2328 XPointer *client_data;
2330 /* If we're not using GCC, it's probably not XFree86, and this is
2331 probably right, but we can't use something like --pedantic-errors. */
2332 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2333 char*, XIMProc, XPointer*);
2335 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2337 [emacs_cv_arg6_star=yes])
2338 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2339 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2340 either XPointer or XPointer*.])dnl
2341 if test "$emacs_cv_arg6_star" = yes; then
2342 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2344 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2349 ### Start of font-backend (under any platform) section.
2350 # (nothing here yet -- this is a placeholder)
2351 ### End of font-backend (under any platform) section.
2353 ### Start of font-backend (under X11) section.
2354 if test "${HAVE_X11}" = "yes"; then
2355 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2357 ## Use -lXft if available, unless `--with-xft=no'.
2359 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2362 if test "x${with_xft}" != "xno"; then
2364 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2365 ## Because xftfont.c uses XRenderQueryExtension, we also
2366 ## need to link to -lXrender.
2368 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2369 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2370 OLD_CPPFLAGS="$CPPFLAGS"
2371 OLD_CFLAGS="$CFLAGS"
2373 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2374 CFLAGS="$CFLAGS $XFT_CFLAGS"
2375 XFT_LIBS="-lXrender $XFT_LIBS"
2376 LIBS="$XFT_LIBS $LIBS"
2377 AC_CHECK_HEADER(X11/Xft/Xft.h,
2378 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2380 if test "${HAVE_XFT}" = "yes"; then
2381 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2383 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2385 CPPFLAGS="$OLD_CPPFLAGS"
2386 CFLAGS="$OLD_CFLAGS"
2388 fi # "${HAVE_XFT}" = "yes"
2389 fi # "$HAVE_XFT" != no
2390 fi # "x${with_xft}" != "xno"
2392 ## We used to allow building with FreeType and without Xft.
2393 ## However, the ftx font backend driver is not in good shape.
2394 if test "$HAVE_XFT" != "yes"; then
2395 dnl For the "Does Emacs use" message at the end.
2399 dnl Strict linkers fail with
2400 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2401 dnl if -lfreetype is not specified.
2402 dnl The following is needed to set FREETYPE_LIBS.
2403 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2406 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2410 if test "${HAVE_FREETYPE}" = "yes"; then
2411 AC_DEFINE(HAVE_FREETYPE, 1,
2412 [Define to 1 if using the freetype and fontconfig libraries.])
2413 if test "${with_libotf}" != "no"; then
2414 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2416 if test "$HAVE_LIBOTF" = "yes"; then
2417 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2418 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2419 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2420 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2421 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2422 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2423 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2427 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2428 dnl Does the new font backend require it, or can it work without it?
2432 if test "${HAVE_LIBOTF}" = yes; then
2433 if test "${with_m17n_flt}" != "no"; then
2434 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2435 if test "$HAVE_M17N_FLT" = "yes"; then
2436 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2447 ### End of font-backend (under X11) section.
2449 AC_SUBST(FREETYPE_CFLAGS)
2450 AC_SUBST(FREETYPE_LIBS)
2451 AC_SUBST(FONTCONFIG_CFLAGS)
2452 AC_SUBST(FONTCONFIG_LIBS)
2453 AC_SUBST(LIBOTF_CFLAGS)
2454 AC_SUBST(LIBOTF_LIBS)
2455 AC_SUBST(M17N_FLT_CFLAGS)
2456 AC_SUBST(M17N_FLT_LIBS)
2458 ### Use -lXpm if available, unless `--with-xpm=no'.
2461 if test "${HAVE_X11}" = "yes"; then
2462 if test "${with_xpm}" != "no"; then
2463 AC_CHECK_HEADER(X11/xpm.h,
2464 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2465 if test "${HAVE_XPM}" = "yes"; then
2466 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2467 AC_EGREP_CPP(no_return_alloc_pixels,
2468 [#include "X11/xpm.h"
2469 #ifndef XpmReturnAllocPixels
2470 no_return_alloc_pixels
2472 ], HAVE_XPM=no, HAVE_XPM=yes)
2474 if test "${HAVE_XPM}" = "yes"; then
2482 if test "${HAVE_XPM}" = "yes"; then
2483 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2489 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2492 if test "${HAVE_X11}" = "yes"; then
2493 if test "${with_jpeg}" != "no"; then
2494 dnl Checking for jpeglib.h can lose because of a redefinition of
2496 AC_CHECK_HEADER(jerror.h,
2497 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2500 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2501 if test "${HAVE_JPEG}" = "yes"; then
2502 AC_DEFINE(HAVE_JPEG)
2503 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2504 [#include <jpeglib.h>
2505 version=JPEG_LIB_VERSION
2507 [AC_DEFINE(HAVE_JPEG)],
2508 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2511 if test "${HAVE_JPEG}" = "yes"; then
2517 ### Use -lpng if available, unless `--with-png=no'.
2520 if test "${HAVE_X11}" = "yes"; then
2521 if test "${with_png}" != "no"; then
2522 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2523 # in /usr/include/libpng.
2524 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2525 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2526 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2530 if test "${HAVE_PNG}" = "yes"; then
2531 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2532 LIBPNG="-lpng -lz -lm"
2534 AC_CHECK_DECL(png_longjmp,
2536 [AC_DEFINE(PNG_DEPSTRUCT, [],
2537 [Define to empty to suppress deprecation warnings when building
2538 with --enable-gcc-warnings and with libpng versions before 1.5,
2539 which lack png_longjmp.])],
2540 [[#ifdef HAVE_LIBPNG_PNG_H
2541 # include <libpng/png.h>
2550 ### Use -ltiff if available, unless `--with-tiff=no'.
2553 if test "${HAVE_X11}" = "yes"; then
2554 if test "${with_tiff}" != "no"; then
2555 AC_CHECK_HEADER(tiffio.h,
2557 # At least one tiff package requires the jpeg library.
2558 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2559 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2562 if test "${HAVE_TIFF}" = "yes"; then
2563 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2564 dnl FIXME -lz -lm, as per libpng?
2570 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2573 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no"; then
2574 AC_CHECK_HEADER(gif_lib.h,
2575 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2576 # Earlier versions can crash Emacs.
2577 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2579 if test "$HAVE_GIF" = yes; then
2581 elif test "$HAVE_GIF" = maybe; then
2582 # If gif_lib.h but no libgif, try libungif.
2583 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2584 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2587 if test "${HAVE_GIF}" = "yes"; then
2588 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2593 dnl Check for required libraries.
2594 if test "${HAVE_X11}" = "yes"; then
2597 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2598 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2599 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2600 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2601 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2602 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2603 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2604 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2605 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2606 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2608 if test "X${MISSING}" != X; then
2609 AC_MSG_ERROR([The following required libraries were not found:
2611 Maybe some development libraries/packages are missing?
2612 If you don't want to link with them give
2614 as options to configure])
2618 ### Use -lgpm if available, unless `--with-gpm=no'.
2621 if test "${with_gpm}" != "no"; then
2622 AC_CHECK_HEADER(gpm.h,
2623 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2625 if test "${HAVE_GPM}" = "yes"; then
2626 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2632 dnl Check for malloc/malloc.h on darwin
2633 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2636 ### Use NeXTstep API to implement GUI.
2637 if test "${HAVE_NS}" = "yes"; then
2638 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2639 if test "${NS_IMPL_COCOA}" = "yes"; then
2640 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2642 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2643 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2644 # See also .m.o rule in Makefile.in */
2645 # FIXME: are all these flags really needed? Document here why. */
2646 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2647 ## Extra CFLAGS applied to src/*.m files.
2648 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
2650 # We also have mouse menus.
2656 ### Use session management (-lSM -lICE) if available
2659 if test "${HAVE_X11}" = "yes"; then
2660 AC_CHECK_HEADER(X11/SM/SMlib.h,
2661 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2663 if test "${HAVE_X_SM}" = "yes"; then
2664 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2668 *) LIBS="$LIBXSM $LIBS" ;;
2674 ### Use libxml (-lxml2) if available
2676 if test "${with_xml2}" != "no"; then
2677 ### I'm not sure what the version number should be, so I just guessed.
2678 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2679 if test "${HAVE_LIBXML2}" = "yes"; then
2680 LIBS="$LIBXML2_LIBS $LIBS"
2681 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2682 if test "${HAVE_LIBXML2}" = "yes"; then
2683 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2690 AC_SUBST(LIBXML2_LIBS)
2691 AC_SUBST(LIBXML2_CFLAGS)
2693 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2694 AC_CACHE_CHECK(whether netdb declares h_errno,
2695 emacs_cv_netdb_declares_h_errno,
2696 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2697 [[return h_errno;]])],
2698 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2699 if test $emacs_cv_netdb_declares_h_errno = yes; then
2700 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2703 # fmod, logb, and frexp are found in -lm on most systems.
2704 # On HPUX 9.01, -lm does not contain logb, so check for sqrt.
2705 AC_CHECK_LIB(m, sqrt)
2707 # Check for mail-locking functions in a "mail" library. Probably this should
2708 # have the same check as for liblockfile below.
2709 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2710 if test $have_mail = yes; then
2712 LIBS="$LIBS_MAIL $LIBS"
2713 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2717 dnl Debian, at least:
2718 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2719 if test $have_lockfile = yes; then
2720 LIBS_MAIL=-llockfile
2721 LIBS="$LIBS_MAIL $LIBS"
2722 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2724 # If we have the shared liblockfile, assume we must use it for mail
2725 # locking (e.g. Debian). If we couldn't link against liblockfile
2726 # (no liblockfile.a installed), ensure that we don't need to.
2727 dnl This works for files generally, not just executables.
2728 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2729 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2730 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2731 if test $ac_cv_prog_liblockfile = yes; then
2732 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2733 This probably means that movemail could lose mail.
2734 There may be a `development' package to install containing liblockfile.])
2737 AC_CHECK_HEADERS_ONCE(maillock.h)
2740 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2741 ## interlock access to the mail spool. The alternative is a lock file named
2742 ## /usr/spool/mail/$USER.lock.
2745 aix4-2) mail_lock="lockf" ;;
2747 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2749 ## On GNU/Linux systems, both methods are used by various mail programs.
2750 ## I assume most people are using newer mailers that have heard of flock.
2751 ## Change this if you need to.
2752 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2753 ## configure gets the right answers, and that means *NOT* using flock.
2754 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2755 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2756 ## Debian maintainer hasn't provided a clean fix for Emacs.
2757 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2758 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2759 ## correct logic. -- fx
2760 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2761 ## liblockfile is a Free Software replacement for libmail, used on
2762 ## Debian systems and elsewhere. -rfr.
2765 if test $have_mail = yes || test $have_lockfile = yes; then
2766 test $ac_cv_header_maillock_h = yes && mail_lock=no
2772 case "$mail_lock" in
2773 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2775 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2777 *) BLESSMAIL_TARGET="need-blessmail" ;;
2779 AC_SUBST(BLESSMAIL_TARGET)
2782 AC_CHECK_FUNCS(gethostname \
2783 closedir getrusage get_current_dir_name \
2784 lrand48 logb frexp fmod cbrt setsid \
2785 fpathconf select euidaccess getpagesize setlocale \
2786 utimes getrlimit setrlimit setpgid getcwd shutdown getaddrinfo \
2787 __fpending strsignal setitimer \
2788 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2789 gai_strerror mkstemp getline getdelim fsync sync \
2790 difftime posix_memalign \
2791 getpwent endpwent getgrent endgrent \
2793 cfmakeraw cfsetspeed copysign __executable_start)
2795 dnl getwd appears to be buggy on SVR4.2, so we don't use it.
2796 if test $opsys = unixware; then
2797 dnl In case some other test ends up checking for getwd.
2798 AC_DEFINE(BROKEN_GETWD, 1, [Define if getwd should not be used.])
2800 AC_CHECK_FUNCS(getwd)
2803 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2804 ## has a broken `rint' in some library versions including math library
2805 ## version number A.09.05.
2806 ## You can fix the math library by installing patch number PHSS_4630.
2807 ## But we can fix it more reliably for Emacs by just not using rint.
2808 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2811 *) AC_CHECK_FUNCS(random rint) ;;
2814 dnl Cannot use AC_CHECK_FUNCS
2815 AC_CACHE_CHECK([for __builtin_unwind_init],
2816 emacs_cv_func___builtin_unwind_init,
2817 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2818 emacs_cv_func___builtin_unwind_init=yes,
2819 emacs_cv_func___builtin_unwind_init=no)])
2820 if test $emacs_cv_func___builtin_unwind_init = yes; then
2821 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2822 [Define to 1 if you have the `__builtin_unwind_init' function.])
2825 AC_CHECK_HEADERS_ONCE(sys/un.h)
2832 AC_CHECK_FUNCS(grantpt)
2834 # PTY-related GNU extensions.
2835 AC_CHECK_FUNCS(getpt posix_openpt)
2837 # Check this now, so that we will NOT find the above functions in ncurses.
2838 # That is because we have not set up to link ncurses in lib-src.
2839 # It's better to believe a function is not available
2840 # than to expect to find it in ncurses.
2841 # Also we need tputs and friends to be able to build at all.
2842 AC_MSG_CHECKING([for library containing tputs])
2843 # Run a test program that contains a call to tputs, a call that is
2844 # never executed. This tests whether a pre-'main' dynamic linker
2845 # works with the library. It's too much trouble to actually call
2846 # tputs in the test program, due to portability hassles. When
2847 # cross-compiling, assume the test program will run if it links.
2848 AC_DEFUN([tputs_link_source], [
2850 [[extern void tputs (const char *, int, int (*)(int));
2851 int main (int argc, char **argv)
2854 tputs (argv[0], 0, 0);
2858 # Maybe curses should be tried earlier?
2859 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2860 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2862 if test -z "$tputs_library"; then
2866 LIBS_TERMCAP=-l$tputs_library
2868 LIBS="$LIBS_TERMCAP $LIBS"
2870 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2871 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2873 if test "X$msg" != Xno; then
2877 AC_MSG_RESULT([$msg])
2878 if test "X$msg" = Xno; then
2879 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2880 The following libraries were tried (in order):
2881 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2882 Please try installing whichever of these libraries is most appropriate
2883 for your system, together with its header files.
2884 For example, a libncurses-dev(el) or similar package.])
2887 ## Use termcap instead of terminfo?
2888 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2890 ## FIXME? In the cases below where we unconditionally set
2891 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2892 ## if that was found above to have tputs.
2893 ## Should we use the gnu* logic everywhere?
2895 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2896 ## The ncurses library has been moved out of the System framework in
2897 ## Mac OS X 10.2. So if configure detects it, set the command-line
2898 ## option to use it.
2899 darwin) LIBS_TERMCAP="-lncurses" ;;
2901 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2904 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2905 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2906 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2907 [[#if __FreeBSD_version < 400000
2910 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2912 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2914 if test $emacs_cv_freebsd_terminfo = yes; then
2915 LIBS_TERMCAP="-lncurses"
2918 LIBS_TERMCAP="-ltermcap"
2923 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
2925 LIBS_TERMCAP="-ltermcap"
2929 openbsd) LIBS_TERMCAP="-lncurses" ;;
2931 ## hpux: Make sure we get select from libc rather than from libcurses
2932 ## because libcurses on HPUX 10.10 has a broken version of select.
2933 ## We used to use -lc -lcurses, but this may be cleaner.
2934 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
2935 # set that way, now it uses the default). Isn't this a contradiction?
2936 hpux*) LIBS_TERMCAP="-ltermcap" ;;
2940 TERMCAP_OBJ=tparam.o
2941 if test $TERMINFO = yes; then
2942 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
2943 TERMCAP_OBJ=terminfo.o
2945 AC_SUBST(LIBS_TERMCAP)
2946 AC_SUBST(TERMCAP_OBJ)
2949 # Do we have res_init, for detecting changes in /etc/resolv.conf?
2950 # On Darwin, res_init appears not to be useful: see bug#562 and
2951 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
2954 if test $opsys != darwin; then
2956 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2957 #include <arpa/nameser.h>
2958 #include <resolv.h>]],
2959 [[return res_init();]])],
2960 have_res_init=yes, have_res_init=no)
2961 if test "$have_res_init" = no; then
2963 LIBS="$LIBS -lresolv"
2964 AC_MSG_CHECKING(for res_init with -lresolv)
2965 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
2966 #include <arpa/nameser.h>
2967 #include <resolv.h>]],
2968 [[return res_init();]])],
2969 have_res_init=yes, have_res_init=no)
2970 AC_MSG_RESULT($have_res_init)
2971 if test "$have_res_init" = yes ; then
2977 if test "$have_res_init" = yes; then
2978 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
2982 # Do we need the Hesiod library to provide the support routines?
2983 dnl FIXME? Should we be skipping this on Darwin too?
2985 if test "$with_hesiod" != no ; then
2986 # Don't set $LIBS here -- see comments above. FIXME which comments?
2987 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
2988 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
2989 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
2990 if test "$resolv" = yes ; then
2995 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
2996 hesiod=yes, :, $RESOLVLIB)])
2998 if test x"$hesiod" = xyes; then
2999 AC_DEFINE(HAVE_LIBHESIOD, 1,
3000 [Define to 1 if you have the hesiod library (-lhesiod).])
3006 # Do we need libresolv (due to res_init or Hesiod)?
3007 if test "$resolv" = yes && test $opsys != darwin; then
3008 AC_DEFINE(HAVE_LIBRESOLV, 1,
3009 [Define to 1 if you have the resolv library (-lresolv).])
3016 # These tell us which Kerberos-related libraries to use.
3023 if test "${with_kerberos}" != no; then
3024 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3025 if test $have_com_err = yes; then
3026 COM_ERRLIB=-lcom_err
3027 LIBS="$COM_ERRLIB $LIBS"
3028 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3030 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3031 if test $have_crypto = yes; then
3033 LIBS="$CRYPTOLIB $LIBS"
3034 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3036 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3037 if test $have_k5crypto = yes; then
3038 CRYPTOLIB=-lk5crypto
3039 LIBS="$CRYPTOLIB $LIBS"
3040 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3042 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3043 if test $have_krb5=yes; then
3045 LIBS="$KRB5LIB $LIBS"
3046 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3048 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3049 if test "${with_kerberos5}" = no; then
3050 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3051 if test $have_des425 = yes; then
3053 LIBS="$DESLIB $LIBS"
3054 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3056 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3057 if test $have_des = yes; then
3059 LIBS="$DESLIB $LIBS"
3060 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3063 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3064 if test $have_krb4 = yes; then
3066 LIBS="$KRB4LIB $LIBS"
3067 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3069 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3070 if test $have_krb = yes; then
3072 LIBS="$KRB4LIB $LIBS"
3073 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3078 if test "${with_kerberos5}" != no; then
3079 AC_CHECK_HEADERS(krb5.h,
3080 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3081 [#include <krb5.h>])])
3083 AC_CHECK_HEADERS(des.h,,
3084 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3085 [AC_CHECK_HEADERS(kerberos/des.h)])])
3086 AC_CHECK_HEADERS(krb.h,,
3087 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3088 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3090 AC_CHECK_HEADERS(com_err.h)
3093 AC_SUBST(COM_ERRLIB)
3099 AC_CHECK_FUNCS_ONCE(tzset)
3100 AC_MSG_CHECKING(whether localtime caches TZ)
3101 AC_CACHE_VAL(emacs_cv_localtime_cache,
3102 [if test x$ac_cv_func_tzset = xyes; then
3103 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3104 char TZ_GMT0[] = "TZ=GMT0";
3105 char TZ_PST8[] = "TZ=PST8";
3108 time_t now = time ((time_t *) 0);
3109 int hour_GMT0, hour_unset;
3110 if (putenv (TZ_GMT0) != 0)
3112 hour_GMT0 = localtime (&now)->tm_hour;
3114 hour_unset = localtime (&now)->tm_hour;
3115 if (putenv (TZ_PST8) != 0)
3117 if (localtime (&now)->tm_hour == hour_GMT0)
3120 if (localtime (&now)->tm_hour != hour_unset)
3123 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3124 [# If we have tzset, assume the worst when cross-compiling.
3125 emacs_cv_localtime_cache=yes])
3127 # If we lack tzset, report that localtime does not cache TZ,
3128 # since we can't invalidate the cache if we don't have tzset.
3129 emacs_cv_localtime_cache=no
3131 AC_MSG_RESULT($emacs_cv_localtime_cache)
3132 if test $emacs_cv_localtime_cache = yes; then
3133 AC_DEFINE(LOCALTIME_CACHE, 1,
3134 [Define to 1 if localtime caches TZ.])
3138 AC_CHECK_FUNC(socket, , ok_so_far=no)
3139 if test $ok_so_far = yes; then
3140 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3142 if test $ok_so_far = yes; then
3143 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3145 if test $ok_so_far = yes; then
3146 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3147 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3148 [Define to 1 if you have inet sockets.])
3151 if test -f /usr/lpp/X11/bin/smt.exp; then
3152 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3153 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3156 AC_MSG_CHECKING(whether system supports dynamic ptys)
3157 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3159 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3166 AC_CHECK_FUNCS(snprintf)
3168 dnl Adapted from Haible's version.
3169 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3170 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3171 [[char* cs = nl_langinfo(CODESET);]])],
3172 emacs_cv_langinfo_codeset=yes,
3173 emacs_cv_langinfo_codeset=no)
3175 if test $emacs_cv_langinfo_codeset = yes; then
3176 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3177 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3182 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3183 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3184 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3185 if test "$emacs_cv_c_restrict_arr" = yes; then
3186 AC_DEFINE(__restrict_arr, __restrict,
3187 [Define to compiler's equivalent of C99 restrict keyword in array
3188 declarations. Define as empty for no equivalent.])
3191 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3192 dnl how the tty code is related to POSIX and/or other versions of termios.
3193 dnl The following looks like a useful start.
3195 dnl AC_SYS_POSIX_TERMIOS
3196 dnl if test $ac_cv_sys_posix_termios = yes; then
3197 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3198 dnl and macros for terminal control.])
3199 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3202 dnl Turned on June 1996 supposing nobody will mind it.
3203 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3204 in the full name stands for the login id.])
3206 dnl Every platform that uses configure (ie every non-MS platform)
3207 dnl supports this. There is a create-lockfiles option you can
3208 dnl customize if you do not want the lock files to be written.
3209 dnl So it is not clear that this #define still needs to exist.
3210 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3211 so that Emacs can tell instantly when you try to modify a file that
3212 someone else has modified in his/her Emacs.])
3214 AH_TEMPLATE(FLOAT_CHECK_DOMAIN, [Define if the float library doesn't
3215 handle errors by either setting errno, or signaling SIGFPE/SIGILL.])
3217 AH_TEMPLATE(HAVE_INVERSE_HYPERBOLIC, [Define if you have the functions
3218 acosh, asinh, and atanh.])
3220 dnl Everybody supports this, except MS.
3221 dnl Seems like the kind of thing we should be testing for, though.
3222 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3223 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3225 dnl Everybody supports this, except MS-DOS.
3226 dnl Seems like the kind of thing we should be testing for, though.
3227 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3228 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3229 4.2-compatible sockets.])
3231 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3233 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3234 a null file, or a data sink.])
3236 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3238 dnl Everybody supports this, except MS-DOS.
3239 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3241 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3244 AC_DEFINE(DIRECTORY_SEP, ['/'],
3245 [Character that separates directories in a file name.])
3247 dnl Only used on MS platforms.
3248 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3250 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3251 [Returns true if character is a device separator.])
3253 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3254 [Returns true if character is a directory separator.])
3256 dnl On MS, this also accepts IS_DEVICE_SEP.
3257 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3258 [Returns true if character is any form of separator.])
3261 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3265 dnl Unfortunately without libXmu we cannot support EditRes.
3266 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3267 AC_DEFINE(NO_EDITRES, 1)
3272 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3273 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3274 AC_DEFINE(NO_EDITRES, 1)
3280 darwin | gnu | hpux* | *bsd )
3281 AC_DEFINE(NO_TERMIO, 1, [Define if termio.h should not be included.])
3284 irix6-5 | sol2* | unixware )
3285 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3286 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3287 dnl need the constant to dimension an array. So wire in the appropriate
3289 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3295 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3296 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3297 hpux* | irix6-5 | openbsd | sol2* | unixware )
3298 AC_DEFINE(BROKEN_SIGIO, 1, [Define if SIGIO should not be used.])
3302 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3303 AC_DEFINE(BROKEN_FIONREAD, 1, [Define if FIONREAD should not be used.])
3304 dnl As we define BROKEN_FIONREAD, SIGIO will be undefined in systty.h.
3305 dnl But, on AIX, SIGAIO, SIGPTY, and SIGPOLL are defined as SIGIO,
3306 dnl which causes compilation error at init_signals in sysdep.c.
3307 dnl So, we define these macros so that syssignal.h detects them
3308 dnl and undefine SIGAIO, SIGPTY and SIGPOLL.
3309 AC_DEFINE(BROKEN_SIGAIO, 1, [Define if SIGAIO should not be used.])
3310 AC_DEFINE(BROKEN_SIGPOLL,1, [Define if SIGPOLL should not be used.])
3311 AC_DEFINE(BROKEN_SIGPTY, 1, [Define if SIGPTY should not be used.])
3313 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3314 dnl the way this system works, libc functions that return malloced
3315 dnl memory use the libc malloc implementation. Calling xfree or
3316 dnl xrealloc on the results of such functions results in a crash.
3318 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3319 dnl but that does not currently work on this system.
3321 dnl It is possible to completely override the malloc implementation on
3322 dnl AIX, but that involves putting the malloc functions in a shared
3323 dnl library and setting the MALLOCTYPE environment variable to point to
3324 dnl that shared library.
3326 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3327 dnl to avoid a crash just use the Emacs implementation for that function.
3329 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3330 dnl of this file, so that we do not check for get_current_dir_name
3331 dnl on AIX. But that might be fragile if something else ends
3332 dnl up testing for get_current_dir_name as a dependency.
3333 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3334 get_current_dir_name should not be used.])
3338 dnl Circumvent a bug in FreeBSD. In the following sequence of
3339 dnl writes/reads on a PTY, read(2) returns bogus data:
3341 dnl write(2) 1022 bytes
3342 dnl write(2) 954 bytes, get EAGAIN
3343 dnl read(2) 1024 bytes in process_read_output
3344 dnl read(2) 11 bytes in process_read_output
3346 dnl That is, read(2) returns more bytes than have ever been written
3347 dnl successfully. The 1033 bytes read are the 1022 bytes written
3348 dnl successfully after processing (for example with CRs added if the
3349 dnl terminal is set up that way which it is here). The same bytes will
3350 dnl be seen again in a later read(2), without the CRs.
3351 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3352 work around an issue when reading from a PTY.])
3358 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3359 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3364 darwin | freebsd | netbsd | openbsd )
3365 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3366 close a pty to make it a controlling terminal (it is already a
3367 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3371 dnl FIXME Surely we can test for this rather than hard-code it.
3373 netbsd | openbsd) sound_device="/dev/audio" ;;
3374 *) sound_device="/dev/dsp" ;;
3378 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3379 [Name of the default sound device.])
3382 dnl Emacs can read input using SIGIO and buffering characters itself,
3383 dnl or using CBREAK mode and making C-g cause SIGINT.
3384 dnl The choice is controlled by the variable interrupt_input.
3386 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3388 dnl Emacs uses the presence or absence of the SIGIO and BROKEN_SIGIO macros
3389 dnl to indicate whether or not signal-driven I/O is possible. It uses
3390 dnl INTERRUPT_INPUT to decide whether to use it by default.
3392 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3393 dnl CBREAK mode has two disadvantages
3394 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3395 dnl I hear that in system V this problem does not exist.
3396 dnl 2) Control-G causes output to be discarded.
3397 dnl I do not know whether this can be fixed in system V.
3399 dnl Another method of doing input is planned but not implemented.
3400 dnl It would have Emacs fork off a separate process
3401 dnl to read the input and send it to the true Emacs process
3404 darwin | gnu-linux | gnu-kfreebsd )
3405 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3410 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3411 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3412 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3413 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3414 dnl taking float or double parameters.
3416 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3417 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3418 file defines `NeedWidePrototypes' as `NO'.])
3423 dnl Used in process.c, this must be a loop, even if it only runs once.
3424 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3425 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3426 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3427 dnl trying suffixes 0-16.
3428 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3429 first PTY, if PTYs are supported.])
3430 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3431 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3432 end of a PTY, if non-standard.])
3433 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3434 end of a PTY, if non-standard.])
3438 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3439 dnl You allocate a pty by opening /dev/ptc to get the master side.
3440 dnl To get the name of the slave side, you just ttyname() the master side.
3441 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3442 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3446 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3447 dnl multi-line AC_DEFINEs are hard. :(
3448 AC_DEFINE(PTY_OPEN, [ do { int dummy; SIGMASKTYPE mask; mask = sigblock (sigmask (SIGCHLD)); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; sigsetmask (mask); if (fd >= 0) emacs_close (dummy); } while (0)])
3449 AC_DEFINE(PTY_NAME_SPRINTF, [])
3450 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3453 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3455 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3456 dnl Not used, because PTY_ITERATION is defined.
3457 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3458 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3459 dnl But we don't have to block SIGCHLD because it is blocked in the
3460 dnl implementation of grantpt.
3461 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3462 AC_DEFINE(PTY_NAME_SPRINTF, [])
3463 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3467 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3470 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3472 if test "x$ac_cv_func_grantpt" = xyes; then
3473 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3474 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3475 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3476 dnl to prevent sigchld_handler from intercepting the child's death.
3477 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname; sigblock (sigmask (SIGCHLD)); if (grantpt (fd) == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname(fd))) { sigunblock (sigmask (SIGCHLD)); close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); sigunblock (sigmask (SIGCHLD)); }])
3478 dnl if HAVE_POSIX_OPENPT
3479 if test "x$ac_cv_func_posix_openpt" = xyes; then
3480 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3481 AC_DEFINE(PTY_NAME_SPRINTF, [])
3483 elif test "x$ac_cv_func_getpt" = xyes; then
3484 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3485 AC_DEFINE(PTY_NAME_SPRINTF, [])
3487 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3490 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3495 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3496 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3497 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3501 dnl It looks like this cannot be right, because it is not a loop.
3502 dnl However, process.c actually does this:
3508 dnl which presumably makes it OK, since irix == sgi (?).
3509 dnl FIXME it seems like this special treatment is unnecessary?
3510 dnl Why can't irix use a single-trip loop like eg cygwin?
3511 AC_DEFINE(PTY_ITERATION, [])
3512 dnl Not used, because PTY_ITERATION is defined.
3513 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3514 AC_DEFINE(PTY_OPEN, [ { struct sigaction ocstat, cstat; struct stat stb; char * name; sigemptyset(&cstat.sa_mask); cstat.sa_handler = SIG_DFL; cstat.sa_flags = 0; sigaction(SIGCLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCLD, &ocstat, (struct sigaction *)0); if (name == 0) return -1; if (fd < 0) return -1; if (fstat (fd, &stb) < 0) return -1; strcpy (pty_name, name); }])
3515 dnl No need to get the pty name at all.
3516 AC_DEFINE(PTY_NAME_SPRINTF, [])
3517 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3518 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3522 dnl Uses sigblock/sigunblock rather than sighold/sigrelse,
3523 dnl which appear to be BSD4.1 specific. It may also be appropriate
3524 dnl for SVR4.x (x<2) but I'm not sure. fnf@cygnus.com
3525 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3526 dnl from intercepting that death. If any child but grantpt's should die
3527 dnl within, it should be caught after sigrelse(2).
3528 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock (sigmask (SIGCLD)); if (grantpt (fd) == -1) { emacs_close (fd); return -1; } sigunblock (sigmask (SIGCLD)); if (unlockpt (fd) == -1) { emacs_close (fd); return -1; } if (!(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3532 dnl Comments are as per sol2*.
3533 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; sigblock(sigmask(SIGCLD)); if (grantpt(fd) == -1) fatal("could not grant slave pty"); sigunblock(sigmask(SIGCLD)); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3540 dnl This change means that we don't loop through allocate_pty too
3541 dnl many times in the (rare) event of a failure.
3542 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3543 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3544 dnl Push various streams modules onto a PTY channel. Used in process.c.
3545 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
3550 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3551 "typing" a signal character on the pty.])
3554 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3555 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3556 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3557 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3560 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3561 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3562 gnu-linux | gnu-kfreebsd )
3564 AC_MSG_CHECKING([for signals via characters])
3565 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3566 #include <linux/version.h>
3567 #if LINUX_VERSION_CODE < 0x20400
3568 # error "Linux version too old"
3570 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3572 AC_MSG_RESULT([$emacs_signals_via_chars])
3573 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3578 dnl Used in dispnew.c
3579 AH_TEMPLATE(PENDING_OUTPUT_COUNT, [Number of chars of output in the
3580 buffer of a stdio stream.])
3582 AC_MSG_CHECKING([whether we are using the GNU C library])
3583 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3584 #include <features.h>
3585 #ifndef __GNU_LIBRARY__
3586 # error "this is not the GNU C library"
3588 ]], [[]])], emacs_glibc=yes, emacs_glibc=no)
3589 AC_MSG_RESULT([$emacs_glibc])
3591 if test $emacs_glibc = yes; then
3593 emacs_pending_output=unknown
3596 gnu | gnu-linux | gnu-kfreebsd )
3597 AC_MSG_CHECKING([for style of pending output formalism])
3598 dnl In autoconf 2.67 and later, we could use a single test
3599 dnl since the preprocessed output is accessible in "conftest.i".
3600 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3602 #if !defined (_IO_STDIO_H) && !defined (_STDIO_USES_IOSTREAM)
3603 # error "stdio definitions not found"
3605 ]], [[]])], emacs_pending_output=new, [])
3607 if test $emacs_pending_output = unknown; then
3609 gnu-linux | gnu-kfreebsd)
3610 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3613 # error "not using uclibc"
3615 ]], [[]])], emacs_pending_output=uclibc, emacs_pending_output=old)
3620 AC_MSG_RESULT([$emacs_pending_output])
3622 case $emacs_pending_output in
3624 dnl New C libio names.
3625 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3626 [((FILE)->_IO_write_ptr - (FILE)->_IO_write_base)])
3629 dnl Using the uClibc library.
3630 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3631 [((FILE)->__bufpos - (FILE)->__bufstart)])
3634 dnl Old C++ iostream names.
3635 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE),
3636 [((FILE)->_pptr - (FILE)->_pbase)])
3642 if test $emacs_pending_output = unknown; then
3643 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__bufp - (FILE)->__buffer)])
3646 else dnl !emacs_glibc
3649 cygwin | darwin | freebsd | netbsd | openbsd )
3650 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_p - (FILE)->_bf._base)])
3654 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->__ptr - (FILE)->__base)])
3658 dnl HAVE_STDIO_EXT_H && HAVE___FPENDING
3659 if test x$ac_cv_header_stdio_ext_h = xyes && \
3660 test x$ac_cv_func___fpending = xyes; then
3661 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [__fpending (FILE)])
3662 AC_DEFINE(DISPNEW_NEEDS_STDIO_EXT, 1,
3663 [Define if dispnew.c should include stdio_ext.h.])
3665 AC_DEFINE(PENDING_OUTPUT_COUNT(FILE), [((FILE)->_ptr - (FILE)->_base)])
3672 dnl Used in vm-limit.c
3673 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3674 dnl Used in lisp.h, emacs.c, mem-limits.h
3675 dnl NEWS.18 describes this as "a number which contains
3676 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3677 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3678 stored in a Lisp_Object.])
3679 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3683 dnl libc defines data_start.
3684 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3688 dnl The data segment on this machine always starts at address 0x40000000.
3689 AC_DEFINE(DATA_START, [0x40000000])
3690 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3693 AC_DEFINE(DATA_START, [0x10000000])
3694 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3699 AH_TEMPLATE(ULIMIT_BREAK_VALUE, [Undocumented.])
3700 AH_TEMPLATE(TAB3, [Undocumented.])
3703 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3705 gnu | freebsd | netbsd | openbsd )
3706 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3707 AC_DEFINE(TAB3, OXTABS)
3710 gnu-linux | gnu-kfreebsd )
3711 dnl libc-linux/sysdeps/linux/i386/ulimit.c says that due to shared
3712 dnl library, we cannot get the maximum address for brk.
3713 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3717 ]], [[]])], AC_DEFINE(ULIMIT_BREAK_VALUE, [(32*1024*1024)]), [])
3719 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3723 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3724 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (0)],
3725 [Mark a secondary stack, like the register stack on the ia64.]), [])
3729 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3730 run_time_remap; for HPUX.])
3734 dnl Ulimit(UL_GMEMLIM) is busted...
3735 AC_DEFINE(ULIMIT_BREAK_VALUE, [0x14000000])
3740 dnl These won't be used automatically yet. We also need to know, at least,
3741 dnl that the stack is continuous.
3742 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3743 registers relevant for conservative garbage collection in the jmp_buf.])
3745 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3746 conservative garbage collection is not known to work.])
3750 aix4-2 | hpux* | unixware)
3751 dnl Conservative garbage collection has not been tested, so for now
3752 dnl play it safe and stick with the old-fashioned way of marking.
3753 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3756 dnl Not all the architectures are tested, but there are Debian packages
3757 dnl for SCM and/or Guile on them, so the technique must work. See also
3758 dnl comments in alloc.c concerning setjmp and gcc.
3759 dnl Fixme: it's probably safe to just use the GCC conditional below.
3760 gnu-linux | gnu-kfreebsd )
3761 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3762 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3763 || defined __alpha__ || defined __mips__ || defined __s390__ \
3764 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3765 || defined __ia64__ || defined __sh__
3768 # error "setjmp not known to work on this arch"
3770 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3771 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3776 if test x$GCC = xyes; then
3777 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3778 AC_DEFINE(GC_SETJMP_WORKS, 1)
3781 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3782 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3783 AC_DEFINE(GC_SETJMP_WORKS, 1)
3788 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3791 [[#include <setjmp.h>
3795 _longjmp (j, 1);]])],
3796 [emacs_cv_func__setjmp=yes],
3797 [emacs_cv_func__setjmp=no])])
3798 if test $emacs_cv_func__setjmp = no; then
3799 AC_DEFINE([_setjmp], [setjmp],
3800 [Define to setjmp if _setjmp and _longjmp do not work. See _longjmp.])
3801 AC_DEFINE([_longjmp], [longjmp],
3802 [Define to longjmp if _setjmp and _longjmp do not work.
3803 Because longjmp may alter signal masks, callers of _longjmp
3804 should not assume that it leaves signal masks alone.])
3809 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3810 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3811 dnl and this is all we need.
3812 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3819 dnl Used in xfaces.c.
3820 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3821 some systems, where it requires time.h.])
3825 dnl Greg A. Woods <woods@weird.com> says we must include signal.h
3826 dnl before syssignal.h is included, to work around interface conflicts
3827 dnl that are handled with CPP __RENAME() macro in signal.h.
3828 AC_DEFINE(SIGNAL_H_AHB, 1, [Define if AH_BOTTOM should include signal.h.])
3833 dnl Define symbols to identify the version of Unix this is.
3834 dnl Define all the symbols that apply correctly.
3835 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3836 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3837 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3838 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3839 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3840 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3841 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3847 dnl This symbol should be defined on AIX Version 3 ???????
3848 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3850 # error "_AIX not defined"
3852 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3856 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3860 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3861 AC_DEFINE(BSD4_2, [])
3862 AC_DEFINE(BSD_SYSTEM, [])
3863 dnl More specific than the above two. We cannot use __APPLE__ as this
3864 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3865 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3866 dnl distinguish OS X from pure Darwin.
3867 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3871 AC_DEFINE(BSD4_2, [])
3872 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3873 dnl Would not be needed with autoconf >= 2.67, where the
3874 dnl preprocessed output is accessible in "conftest.i".
3875 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3878 gnu | netbsd | openbsd )
3879 AC_DEFINE(BSD4_2, [])
3880 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3882 # error "BSD_SYSTEM not defined"
3884 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3887 gnu-linux | gnu-kfreebsd )
3889 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3895 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3901 AC_DEFINE(USG5_4, [])
3902 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3908 AC_DEFINE(USG5_4, [])
3909 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3915 AC_DEFINE(USG5_4, [])
3921 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3922 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3923 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3924 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3926 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3927 G_SLICE environment variable to "always-malloc" at startup, if
3932 dnl See comments in sysdep.c:sys_signal.
3933 dnl SA_RESTART resets the timeout of `select' on hpux11.
3934 dnl Defining BROKEN_SA_RESTART is not the same as undef'ing SA_RESTART.
3935 AC_DEFINE(BROKEN_SA_RESTART, 1, [Define if SA_RESTART should only
3936 be used in batch mode.])
3937 dnl It works to open the pty's tty in the parent (Emacs), then
3938 dnl close and reopen it in the child.
3939 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3940 works to open a pty's tty in the parent process, then close and
3941 reopen it in the child.])
3945 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3946 use VSUSP instead of VSWTCH.])
3947 AC_DEFINE(SETPGRP_RELEASES_CTTY, 1, [Define if process.c:child_setup
3948 should not call setpgrp.])
3952 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3957 # Set up the CFLAGS for real compilation, so we can substitute it.
3958 CFLAGS="$REAL_CFLAGS"
3959 CPPFLAGS="$REAL_CPPFLAGS"
3961 ## Hack to detect a buggy GCC version.
3962 if test "x$GCC" = xyes \
3963 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3964 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3965 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3966 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3969 version=$PACKAGE_VERSION
3971 ### Specify what sort of things we'll be editing into Makefile and config.h.
3972 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3974 AC_SUBST(configuration)
3979 AC_SUBST(exec_prefix)
3982 AC_SUBST(sharedstatedir)
3983 AC_SUBST(libexecdir)
3988 AC_SUBST(standardlisppath)
3989 AC_SUBST(locallisppath)
3991 AC_SUBST(x_default_search_path)
3993 AC_SUBST(archlibdir)
3998 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3999 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4000 ## end of LIBX_BASE, but nothing ever set it.
4001 AC_SUBST(LD_SWITCH_X_SITE)
4002 AC_SUBST(C_SWITCH_X_SITE)
4003 AC_SUBST(GNUSTEP_CFLAGS)
4005 ## Used in lwlib/Makefile.in.
4006 AC_SUBST(X_TOOLKIT_TYPE)
4008 AC_SUBST(ns_appbindir)
4009 AC_SUBST(ns_appresdir)
4011 AC_SUBST(GNU_OBJC_CFLAGS)
4012 AC_SUBST(OTHER_FILES)
4014 if test -n "${term_header}"; then
4015 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4016 [Define to the header for the built-in window system.])
4019 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4020 [Define to the canonical Emacs configuration name.])
4021 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4022 [Define to the options passed to configure.])
4023 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4024 define this to include extra configuration information.])
4029 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4030 AC_DEFINE(HAVE_X_WINDOWS, 1,
4031 [Define to 1 if you want to use the X window system.])
4033 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4035 if test "$HAVE_XFT" = "yes"; then
4036 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4037 elif test "$HAVE_FREETYPE" = "yes"; then
4038 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4048 if test "${USE_X_TOOLKIT}" != "none" ; then
4050 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4051 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4052 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4053 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4054 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4058 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4059 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4063 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4064 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4065 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4069 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4070 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4073 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4076 AC_SUBST(WIDGET_OBJ)
4079 case "$USE_X_TOOLKIT" in
4080 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4081 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4082 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4084 AC_SUBST(TOOLKIT_LIBW)
4086 if test "$USE_X_TOOLKIT" = "none"; then
4087 LIBXT_OTHER="\$(LIBXSM)"
4088 OLDXMENU_TARGET="really-oldXMenu"
4090 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4091 OLDXMENU_TARGET="really-lwlib"
4093 AC_SUBST(LIBXT_OTHER)
4095 ## The X Menu stuff is present in the X10 distribution, but missing
4096 ## from X11. If we have X10, just use the installed library;
4097 ## otherwise, use our own copy.
4098 if test "${HAVE_X11}" = "yes" ; then
4099 AC_DEFINE(HAVE_X11, 1,
4100 [Define to 1 if you want to use version 11 of X windows.
4101 Otherwise, Emacs expects to use version 10.])
4103 if test "$USE_X_TOOLKIT" = "none"; then
4104 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4106 OLDXMENU="\${lwlibdir}/liblw.a"
4108 LIBXMENU="\$(OLDXMENU)"
4109 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4110 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4112 ## For a syntactically valid Makefile; not actually used for anything.
4113 ## See comments in src/Makefile.in.
4115 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4116 if test "${HAVE_X_WINDOWS}" = "yes"; then
4125 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4132 AC_SUBST(OLDXMENU_TARGET)
4135 AC_SUBST(LIBX_OTHER)
4136 AC_SUBST(OLDXMENU_DEPS)
4138 if test "${HAVE_MENUS}" = "yes" ; then
4139 AC_DEFINE(HAVE_MENUS, 1,
4140 [Define to 1 if you have mouse menus.
4141 (This is automatic if you use X, but the option to specify it remains.)
4142 It is also defined with other window systems that support xmenu.c.])
4145 if test "${GNU_MALLOC}" = "yes" ; then
4146 AC_DEFINE(GNU_MALLOC, 1,
4147 [Define to 1 if you want to use the GNU memory allocator.])
4151 if test "${REL_ALLOC}" = "yes" ; then
4152 AC_DEFINE(REL_ALLOC, 1,
4153 [Define REL_ALLOC if you want to use the relocating allocator for
4156 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4158 AC_SUBST(RALLOC_OBJ)
4160 if test "$opsys" = "cygwin"; then
4161 CYGWIN_OBJ="sheap.o"
4162 ## Cygwin differs because of its unexec().
4164 POST_ALLOC_OBJ=lastfile.o
4167 PRE_ALLOC_OBJ=lastfile.o
4170 AC_SUBST(CYGWIN_OBJ)
4171 AC_SUBST(PRE_ALLOC_OBJ)
4172 AC_SUBST(POST_ALLOC_OBJ)
4174 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4175 # it temporarily reverts them to their pre-pkg-config values,
4176 # because gnulib needs to work with both src (which uses the
4177 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4178 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4179 # and it therefore needs to run in an environment where LIBS does not
4180 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4181 # for some package unrelated to lib-src.
4184 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4185 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4186 gl_ASSERT_NO_GNULIB_POSIXCHECK
4187 gl_ASSERT_NO_GNULIB_TESTS
4193 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4196 ## The -headerpad option tells ld (see man page) to leave room at the
4197 ## end of the header for adding load commands. Needed for dumping.
4198 ## 0x690 is the total size of 30 segment load commands (at 56
4199 ## each); under Cocoa 31 commands are required.
4200 if test "$HAVE_NS" = "yes"; then
4201 libs_nsgui="-framework AppKit"
4207 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4209 ## This is here because src/Makefile.in did some extra fiddling around
4210 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4211 ## #ifndef LD_SWITCH_SYSTEM
4212 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4213 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4214 ## not using gcc, darwin.
4215 ## Because this was done in src/Makefile.in, the resulting part of
4216 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4217 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4218 ## rather than LD_SWITCH_SYSTEM.
4219 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4220 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4223 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4224 ## find X at run-time.
4225 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4226 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4227 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4228 ## had different values in configure (in ac_link) and src/Makefile.in.
4229 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4230 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4232 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4235 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4236 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4239 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4245 ## gnu: GNU needs its own crt0.
4246 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4248 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4249 ## library search parth, i.e. it won't search /usr/lib for libc and
4250 ## friends. Using -nostartfiles instead avoids this problem, and
4251 ## will also work on earlier NetBSD releases.
4252 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4254 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4255 ## MkLinux/LinuxPPC needs this.
4256 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4258 case "$canonical" in
4259 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4265 if test "x$ORDINARY_LINK" = "xyes"; then
4268 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4270 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4271 ## freebsd, gnu-* not on powerpc*|s390x*.
4272 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4274 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4275 ## places that are difficult to figure out at make time. Fortunately,
4276 ## these same versions allow you to pass arbitrary flags on to the
4277 ## linker, so there is no reason not to use it as a linker.
4279 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4280 ## searching for libraries in its internal directories, so we have to
4281 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4282 LD_FIRSTFLAG="-nostdlib"
4285 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4286 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4288 AC_SUBST(LD_FIRSTFLAG)
4291 ## FIXME? The logic here is not precisely the same as that above.
4292 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4293 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4295 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4298 freebsd|netbsd|openbsd) LIB_GCC= ;;
4301 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4302 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4308 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4309 ## immediately undefine it again and redefine it to empty.
4310 ## Was the C_SWITCH_X_SITE part really necessary?
4311 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4317 ## Ask GCC where to find libgcc.a.
4318 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4323 ## Common for all window systems
4324 if test "$window_system" != "none"; then
4325 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4326 AC_DEFINE(HAVE_MOUSE, 1, [Define if you have mouse support.])
4327 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4330 AC_SUBST(WINDOW_SYSTEM_OBJ)
4332 AH_TOP([/* GNU Emacs site configuration template file.
4334 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4335 Free Software Foundation, Inc.
4337 This file is part of GNU Emacs.
4339 GNU Emacs is free software: you can redistribute it and/or modify
4340 it under the terms of the GNU General Public License as published by
4341 the Free Software Foundation, either version 3 of the License, or
4342 (at your option) any later version.
4344 GNU Emacs is distributed in the hope that it will be useful,
4345 but WITHOUT ANY WARRANTY; without even the implied warranty of
4346 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4347 GNU General Public License for more details.
4349 You should have received a copy of the GNU General Public License
4350 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4353 /* No code in Emacs #includes config.h twice, but some bits of code
4354 intended to work with other packages as well (like gmalloc.c)
4355 think they can include it as many times as they like. */
4356 #ifndef EMACS_CONFIG_H
4357 #define EMACS_CONFIG_H
4360 AH_BOTTOM([#include <conf_post.h>
4362 #endif /* EMACS_CONFIG_H */
4371 #### Report on what we decided to do.
4372 #### Report GTK as a toolkit, even if it doesn't use Xt.
4373 #### It makes printing result more understandable as using GTK sets
4374 #### toolkit_scroll_bars to yes by default.
4375 if test "${HAVE_GTK}" = "yes"; then
4376 if test "${with_gtk3}" = "yes"; then
4384 Configured for \`${canonical}'.
4386 Where should the build process find the source code? ${srcdir}
4387 What compiler should emacs be built with? ${CC} ${CFLAGS}
4388 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4389 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4390 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4391 What window system should Emacs use? ${window_system}
4392 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4394 if test -n "${x_includes}"; then
4395 echo " Where do we find X Windows header files? ${x_includes}"
4397 echo " Where do we find X Windows header files? Standard dirs"
4399 if test -n "${x_libraries}"; then
4400 echo " Where do we find X Windows libraries? ${x_libraries}"
4402 echo " Where do we find X Windows libraries? Standard dirs"
4405 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4406 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4407 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4408 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4409 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4410 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4411 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4412 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4414 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4415 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4416 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4417 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4418 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4419 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4420 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4422 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4423 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4424 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4425 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4427 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4430 if test -n "${EMACSDATA}"; then
4431 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4433 if test -n "${EMACSDOC}"; then
4434 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4439 if test "$HAVE_NS" = "yes"; then
4441 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4442 The installed application will go to nextstep/Emacs.app and can be
4443 run or moved from there."
4444 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4445 echo "The application will be fully self-contained."
4447 echo "The lisp resources for the application will be installed under ${prefix}.
4448 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4449 to run if these resources are not installed."
4454 if test "${opsys}" = "cygwin"; then
4456 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4462 # Remove any trailing slashes in these variables.
4463 [test "${prefix}" != NONE &&
4464 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4465 test "${exec_prefix}" != NONE &&
4466 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4468 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4469 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4470 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4471 dnl (else you get "no `Makefile.am' found for any configure output").
4472 dnl This will work, but you get a config.status that is not quite right
4473 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4474 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4475 dnl it seems better to just live with the duplication.
4476 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile"
4478 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4479 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4480 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4483 dnl test/ is not present in release tarfiles.
4484 opt_makefile=test/automated/Makefile
4486 if test -f $srcdir/${opt_makefile}.in; then
4487 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4488 dnl Again, it's best not to use a variable. Though you can add
4489 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4490 AC_CONFIG_FILES([test/automated/Makefile])
4494 dnl admin/ may or may not be present.
4495 opt_makefile=admin/unidata/Makefile
4497 if test -f $srcdir/${opt_makefile}.in; then
4498 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4499 AC_CONFIG_FILES([admin/unidata/Makefile])
4503 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4505 AC_SUBST(SUBDIR_MAKEFILES_IN)
4507 dnl Make the necessary directories, if they don't exist.
4508 AC_CONFIG_COMMANDS([mkdirs], [
4509 for dir in etc lisp ; do
4510 test -d ${dir} || mkdir ${dir}
4514 dnl You might wonder (I did) why epaths.h is generated by running make,
4515 dnl rather than just letting configure generate it from epaths.in.
4516 dnl One reason is that the various paths are not fully expanded (see above);
4517 dnl eg gamedir=${prefix}/var/games/emacs.
4518 dnl Secondly, the GNU Coding standards require that one should be able
4519 dnl to run `make prefix=/some/where/else' and override the values set
4520 dnl by configure. This also explains the `move-if-change' test and
4521 dnl the use of force in the `epaths-force' rule in Makefile.in.
4522 AC_CONFIG_COMMANDS([epaths], [
4523 echo creating src/epaths.h
4524 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4525 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4527 AC_CONFIG_COMMANDS([gdbinit], [
4528 if test ! -f src/.gdbinit && test -f $srcdir/src/.gdbinit; then
4529 echo creating src/.gdbinit
4530 echo source $srcdir/src/.gdbinit > src/.gdbinit