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, 1999-2013 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, 24.3.50)
27 dnl This is the documented way to record the args passed to configure,
28 dnl rather than $ac_configure_args.
29 emacs_config_options="$@"
30 ## Add some environment variables, if they were passed via the environment
31 ## rather than on the command-line.
32 for var in CFLAGS CPPFLAGS LDFLAGS; do
33 case "$emacs_config_options" in
37 test x"$val" = x && continue
38 emacs_config_options="${emacs_config_options}${emacs_config_options:+ }$var=\"$val\""
41 AC_CONFIG_HEADER(src/config.h:src/config.in)
42 AC_CONFIG_SRCDIR(src/lisp.h)
43 AC_CONFIG_AUX_DIR(build-aux)
44 dnl Fairly arbitrary, older versions might work too.
45 AM_INIT_AUTOMAKE(1.11)
47 dnl Support for --program-prefix, --program-suffix and
48 dnl --program-transform-name options
51 dnl It is important that variables on the RHS not be expanded here,
52 dnl hence the single quotes. This is per the GNU coding standards, see
53 dnl (autoconf) Installation Directory Variables
54 dnl See also epaths.h below.
55 lispdir='${datadir}/emacs/${version}/lisp'
56 leimdir='${datadir}/emacs/${version}/leim'
57 standardlisppath='${lispdir}:${leimdir}'
58 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
59 '${datadir}/emacs/site-lisp'
60 lisppath='${locallisppath}:${standardlisppath}'
61 etcdir='${datadir}/emacs/${version}/etc'
62 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
63 docdir='${datadir}/emacs/${version}/etc'
64 gamedir='${localstatedir}/games/emacs'
66 dnl Special option to disable the most of other options.
68 [AS_HELP_STRING([--without-all],
69 [omit almost all features and build
70 small executable with minimal dependencies])],
71 with_features=$withval,
74 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
75 dnl Create a new --with option that defaults to being disabled.
76 dnl NAME is the base name of the option. The shell variable with_NAME
77 dnl will be set to either the user's value (if the option is
78 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
79 dnl option is not specified). Note that the shell variable name is
80 dnl constructed as autoconf does, by replacing non-alphanumeric
81 dnl characters with "_".
82 dnl HELP-STRING is the help text for the option.
83 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
84 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
85 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
88 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
89 dnl Create a new --with option that defaults to $enable_features.
90 dnl NAME is the base name of the option. The shell variable with_NAME
91 dnl will be set either to 'no' (for a plain --without-NAME) or to
92 dnl 'yes' (if the option is not specified). Note that the shell
93 dnl variable name is constructed as autoconf does, by replacing
94 dnl non-alphanumeric characters with "_".
95 dnl HELP-STRING is the help text for the option.
96 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
97 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
98 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
101 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
102 if test "$with_pop" = yes; then
103 AC_DEFINE(MAIL_USE_POP)
105 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
107 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
108 if test "$with_kerberos" != no; then
111 AH_TEMPLATE(KERBEROS,
112 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
114 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
115 if test "${with_kerberos5}" != no; then
116 if test "${with_kerberos}" = no; then
120 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
123 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
124 dnl FIXME hesiod support may not be present, so it seems like an error
125 dnl to define, or at least use, this unconditionally.
126 if test "$with_hesiod" != no; then
127 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
130 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
131 if test "$with_mmdf" != no; then
132 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
135 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
136 if test "$with_mail_unlink" != no; then
137 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
140 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
141 [string giving default POP mail host])],
142 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
144 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
146 dnl FIXME currently it is not the last.
147 dnl This should be the last --with option, because --with-x is
148 dnl added later on when we find the file name of X, and it's best to
149 dnl keep them together visually.
150 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
151 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
152 [ case "${withval}" in
153 y | ye | yes ) val=gtk ;;
155 l | lu | luc | luci | lucid ) val=lucid ;;
156 a | at | ath | athe | athen | athena ) val=athena ;;
157 m | mo | mot | moti | motif ) val=motif ;;
158 g | gt | gtk ) val=gtk ;;
162 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
163 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
164 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
165 `athena' and `lucid' are synonyms.])
171 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
172 if test "$with_wide_int" = yes; then
173 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
176 dnl _ON results in a '--without' option in the --help output, so
177 dnl the help text should refer to "don't compile", etc.
178 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
179 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
180 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
181 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
182 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
183 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
184 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
185 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
187 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
188 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
189 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
191 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
192 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
193 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
194 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
195 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI])
197 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
198 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
199 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
200 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
201 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
202 OPTION_DEFAULT_ON([acl],[don't compile with ACL support])
203 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
204 OPTION_DEFAULT_ON([inotify],[don't compile with inotify (file-watch) support])
206 ## For the times when you want to build Emacs but don't have
207 ## a suitable makeinfo, and can live without the manuals.
208 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
209 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
211 ## Makefile.in needs the cache file name.
214 ## This is an option because I do not know if all info/man support
215 ## compressed files, nor how to test if they do so.
216 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
217 if test $with_compress_info = yes; then
224 AC_ARG_WITH([pkg-config-prog],dnl
225 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
226 [file name of pkg-config for finding GTK and librsvg])])
227 if test "X${with_pkg_config_prog}" != X; then
228 if test "${with_pkg_config_prog}" != yes; then
229 PKG_CONFIG="${with_pkg_config_prog}"
233 AC_ARG_WITH(gameuser,dnl
234 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
235 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
236 && gameuser="${with_gameuser}"
237 test "X$gameuser" = X && gameuser=games
239 AC_ARG_WITH([gnustep-conf],dnl
240 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
241 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
242 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
243 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
244 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
245 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
247 AC_ARG_ENABLE(ns-self-contained,
248 [AS_HELP_STRING([--disable-ns-self-contained],
249 [disable self contained build under NeXTstep])],
250 EN_NS_SELF_CONTAINED=$enableval,
251 EN_NS_SELF_CONTAINED=yes)
253 AC_ARG_ENABLE(locallisppath,
254 [AS_HELP_STRING([--enable-locallisppath=PATH],
255 [directories Emacs should search for lisp files specific
257 if test "${enableval}" = "no"; then
259 elif test "${enableval}" != "yes"; then
260 locallisppath=${enableval}
263 AC_ARG_ENABLE(checking,
264 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
265 [enable expensive run-time checks. With LIST,
266 enable only specific categories of checks.
267 Categories are: all,yes,no.
268 Flags are: stringbytes, stringoverrun, stringfreelist,
269 xmallocoverrun, conslist, glyphs])],
270 [ac_checking_flags="${enableval}"],[])
271 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
272 for check in $ac_checking_flags
275 # these set all the flags to specific states
276 yes) ac_enable_checking=1 ;;
277 no) ac_enable_checking= ;
278 ac_gc_check_stringbytes= ;
279 ac_gc_check_string_overrun= ;
280 ac_gc_check_string_free_list= ;
281 ac_xmalloc_overrun= ;
282 ac_gc_check_cons_list= ;
284 all) ac_enable_checking=1 ;
285 ac_gc_check_stringbytes=1 ;
286 ac_gc_check_string_overrun=1 ;
287 ac_gc_check_string_free_list=1 ;
288 ac_xmalloc_overrun=1 ;
289 ac_gc_check_cons_list=1 ;
291 # these enable particular checks
292 stringbytes) ac_gc_check_stringbytes=1 ;;
293 stringoverrun) ac_gc_check_string_overrun=1 ;;
294 stringfreelist) ac_gc_check_string_free_list=1 ;;
295 xmallocoverrun) ac_xmalloc_overrun=1 ;;
296 conslist) ac_gc_check_cons_list=1 ;;
297 glyphs) ac_glyphs_debug=1 ;;
298 *) AC_MSG_ERROR(unknown check category $check) ;;
303 if test x$ac_enable_checking != x ; then
304 AC_DEFINE(ENABLE_CHECKING, 1,
305 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
307 if test x$ac_gc_check_stringbytes != x ; then
308 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
309 [Define this temporarily to hunt a bug. If defined, the size of
310 strings is redundantly recorded in sdata structures so that it can
311 be compared to the sizes recorded in Lisp strings.])
313 if test x$ac_gc_check_string_overrun != x ; then
314 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
315 [Define this to check for short string overrun.])
317 if test x$ac_gc_check_string_free_list != x ; then
318 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
319 [Define this to check the string free list.])
321 if test x$ac_xmalloc_overrun != x ; then
322 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
323 [Define this to check for malloc buffer overrun.])
325 if test x$ac_gc_check_cons_list != x ; then
326 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
327 [Define this to check for errors in cons list.])
329 if test x$ac_glyphs_debug != x ; then
330 AC_DEFINE(GLYPH_DEBUG, 1,
331 [Define this to enable glyphs debugging code.])
334 AC_ARG_ENABLE(check-lisp-object-type,
335 [AS_HELP_STRING([--enable-check-lisp-object-type],
336 [enable compile time checks for the Lisp_Object data type.
337 This is useful for development for catching certain types of bugs.])],
338 if test "${enableval}" != "no"; then
339 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
340 [Define this to enable compile time checks for the Lisp_Object data type.])
344 dnl The name of this option is unfortunate. It predates, and has no
345 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
346 dnl Actually, it stops it working.
347 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
348 AC_ARG_ENABLE(profiling,
349 [AS_HELP_STRING([--enable-profiling],
350 [build emacs with low-level, gprof profiling support.
351 Mainly useful for debugging Emacs itself. May not work on
352 all platforms. Stops profiler.el working.])],
353 [ac_enable_profiling="${enableval}"],[])
354 if test x$ac_enable_profiling != x ; then
355 PROFILING_CFLAGS="-DPROFILING=1 -pg"
359 AC_SUBST(PROFILING_CFLAGS)
361 AC_ARG_ENABLE(autodepend,
362 [AS_HELP_STRING([--enable-autodepend],
363 [automatically generate dependencies to .h-files.
364 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
366 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
368 AC_ARG_ENABLE(gtk-deprecation-warnings,
369 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
370 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
371 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
373 #### Make srcdir absolute, if it isn't already. It's important to
374 #### avoid running the file name through pwd unnecessarily, since pwd can
375 #### give you automounter prefixes, which can go away. We do all this
376 #### so Emacs can find its files when run uninstalled.
377 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
382 ## We may be able to use the $PWD environment variable to make this
383 ## absolute. But sometimes PWD is inaccurate.
384 ## Note: we used to use $PWD at the end instead of `pwd`,
385 ## but that tested only for a well-formed and valid PWD,
386 ## it did not object when PWD was well-formed and valid but just wrong.
387 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
391 srcdir=`(cd "$srcdir"; pwd)`
394 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
397 ### Canonicalize the configuration name.
401 configuration=${host_alias-${build_alias-$host}}
403 dnl This used to use changequote, but, apart from `changequote is evil'
404 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
405 dnl the great gob of text. Thus it's not processed for possible expansion.
406 dnl Just make sure the brackets remain balanced.
408 dnl Since Emacs can't find matching pairs of quotes, boundaries are
409 dnl indicated by comments.
413 ### If you add support for a new configuration, add code to this
414 ### switch statement to recognize your configuration name and select
415 ### the appropriate operating system file.
417 ### You would hope that you could choose an s/*.h
418 ### file based on the operating system portion. However, it turns out
419 ### that each s/*.h file is pretty manufacturer-specific.
420 ### So we basically have to have a special case for each
421 ### configuration name.
423 ### As far as handling version numbers on operating systems is
424 ### concerned, make sure things will fail in a fixable way. If
425 ### /etc/MACHINES doesn't say anything about version numbers, be
426 ### prepared to handle anything reasonably. If version numbers
427 ### matter, be sure /etc/MACHINES says something about it.
430 case "${canonical}" in
432 ## GNU/Linux and similar ports
442 ## FreeBSD kernel + glibc based userland
457 ## Apple Darwin / Mac OS X
459 case "${canonical}" in
466 ## Use fink packages if available.
467 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
468 ## if test -d /sw/include && test -d /sw/lib; then
469 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
470 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
474 ## HP 9000 series 700 and 800, running HP/UX
478 hppa*-hp-hpux1[1-9]* )
480 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
484 rs6000-ibm-aix4.[23]* )
487 powerpc-ibm-aix4.[23]* )
490 rs6000-ibm-aix[56]* )
493 powerpc-ibm-aix[56]* )
497 ## Silicon Graphics machines
501 # Without defining _LANGUAGE_C, things get masked out in the headers
502 # so that, for instance, grepping for `free' in stdlib.h fails and
503 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
504 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
509 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
510 | x86_64-*-solaris2* | x86_64-*-sunos5*)
511 case "${canonical}" in
513 amd64-*-*|x86_64-*-*) ;;
517 case "${canonical}" in
518 *-sunos5.6* | *-solaris2.6* )
522 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
524 emacs_check_sunpro_c=yes
526 *-sunos5* | *-solaris* )
528 emacs_check_sunpro_c=yes
531 ## Watch out for a compiler that we know will not work.
532 case "${canonical}" in
533 *-solaris* | *-sunos5* )
534 if [ "x$CC" = x/usr/ucb/cc ]; then
535 ## /usr/ucb/cc doesn't work;
536 ## we should find some other compiler that does work.
544 ## Intel 386 machines where we don't care about the manufacturer.
546 case "${canonical}" in
547 *-cygwin ) opsys=cygwin ;;
548 *-darwin* ) opsys=darwin ;;
549 *-sysv4.2uw* ) opsys=unixware ;;
550 *-sysv5uw* ) opsys=unixware ;;
551 *-sysv5OpenUNIX* ) opsys=unixware ;;
552 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
561 ### If the code above didn't choose an operating system, just choose
562 ### an operating system based on the configuration name. You really
563 ### only want to use this when you have no idea what the right
564 ### operating system is; if you know what operating systems a machine
565 ### runs, it's cleaner to make it explicit in the case statement
567 if test x"${opsys}" = x; then
568 case "${canonical}" in
569 *-gnu* ) opsys=gnu ;;
579 if test $unported = yes; then
580 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
581 Check `etc/MACHINES' for recognized configuration names.])
585 #### Choose a compiler.
587 dnl Sets GCC=yes if using gcc.
591 if test x$GCC = xyes; then
592 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
594 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
597 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
598 # as we don't use them.
599 AC_DEFUN([gl_FCNTL_O_FLAGS])
600 # Avoid gnulib's threadlib module, as we do threads our own way.
601 AC_DEFUN([gl_THREADLIB])
603 # Initialize gnulib right after choosing the compiler.
604 dnl Amongst other things, this sets AR and ARFLAGS.
607 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
608 # if -g3 works and the user does not specify CFLAGS.
609 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
610 if test "$ac_test_CFLAGS" != set; then
613 emacs_g3_CFLAGS='-g3';;
615 emacs_g3_CFLAGS='-g3 -O2';;
619 if test -n "$emacs_g3_CFLAGS"; then
620 emacs_save_CFLAGS=$CFLAGS
621 CFLAGS=$emacs_g3_CFLAGS
622 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
623 [emacs_cv_prog_cc_g3],
624 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
625 [emacs_cv_prog_cc_g3=yes],
626 [emacs_cv_prog_cc_g3=no])])
627 if test $emacs_cv_prog_cc_g3 = yes; then
628 CFLAGS=$emacs_g3_CFLAGS
630 CFLAGS=$emacs_save_CFLAGS
635 AC_ARG_ENABLE([gcc-warnings],
636 [AS_HELP_STRING([--enable-gcc-warnings],
637 [turn on lots of GCC warnings/errors. This is intended for
638 developers, and may generate false alarms when used
639 with older or non-GNU development tools.])],
642 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
644 gl_gcc_warnings=$enableval],
648 AC_ARG_ENABLE(link-time-optimization,
649 [AS_HELP_STRING([--enable-link-time-optimization],
650 [build emacs with link-time optimization.
651 This is supported only for GCC since 4.5.0.])],
652 if test "${enableval}" != "no"; then
653 AC_MSG_CHECKING([whether link-time optimization is supported])
655 if test x$GCC = xyes; then
656 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
657 if test x$CPUS != x; then
663 CFLAGS="$CFLAGS $LTO"
664 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
665 [ac_lto_supported=yes], [ac_lto_supported=no])
668 AC_MSG_RESULT([$ac_lto_supported])
669 if test "$ac_lto_supported" = "yes"; then
670 CFLAGS="$CFLAGS $LTO"
674 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
675 # ------------------------------------------------
676 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
677 # Otherwise, run RUN-IF-NOT-FOUND.
678 AC_DEFUN([gl_GCC_VERSION_IFELSE],
682 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
685 # error "your version of gcc is older than $1.$2"
692 # When compiling with GCC, prefer -isystem to -I when including system
693 # include files, to avoid generating useless diagnostics for the files.
694 if test "$gl_gcc_warnings" != yes; then
699 # This, $nw, is the list of warnings we disable.
702 case $with_x_toolkit in
703 lucid | athena | motif)
704 # Old toolkits mishandle 'const'.
705 nw="$nw -Wwrite-strings"
708 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
711 AC_SUBST([WERROR_CFLAGS])
713 nw="$nw -Waggregate-return" # anachronistic
714 nw="$nw -Wlong-long" # C90 is anachronistic
715 nw="$nw -Wc++-compat" # We don't care about C++ compilers
716 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
717 nw="$nw -Wtraditional" # Warns on #elif which we use often
718 nw="$nw -Wcast-qual" # Too many warnings for now
719 nw="$nw -Wconversion" # Too many warnings for now
720 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
721 nw="$nw -Wsign-conversion" # Too many warnings for now
722 nw="$nw -Woverlength-strings" # Not a problem these days
723 nw="$nw -Wtraditional-conversion" # Too many warnings for now
724 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
725 nw="$nw -Wpadded" # Our structs are not padded
726 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
727 nw="$nw -Wlogical-op" # any use of fwrite provokes this
728 nw="$nw -Wformat-nonliteral" # we do this a lot
729 nw="$nw -Wvla" # warnings in gettext.h
730 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
731 nw="$nw -Wswitch-enum" # Too many warnings for now
732 nw="$nw -Wswitch-default" # Too many warnings for now
733 nw="$nw -Wfloat-equal" # warns about high-quality code
734 nw="$nw -Winline" # OK to ignore 'inline'
735 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
736 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
737 # signed overflow has undefined behavior
738 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
739 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
741 # Emacs doesn't care about shadowing; see
742 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
745 # Emacs's use of alloca inhibits protecting the stack.
746 nw="$nw -Wstack-protector"
748 # The following line should be removable at some point.
749 nw="$nw -Wsuggest-attribute=pure"
751 gl_MANYWARN_ALL_GCC([ws])
752 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
756 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
757 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
758 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
759 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
760 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
761 gl_WARN_ADD([-Wno-format-nonliteral])
763 # In spite of excluding -Wlogical-op above, it is enabled, as of
764 # gcc 4.5.0 20090517.
765 gl_WARN_ADD([-Wno-logical-op])
767 gl_WARN_ADD([-fdiagnostics-show-option])
768 gl_WARN_ADD([-funit-at-a-time])
770 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
771 AH_VERBATIM([FORTIFY_SOURCE],
772 [/* Enable compile-time and run-time bounds-checking, and some warnings,
773 without upsetting glibc 2.15+. */
774 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
775 # define _FORTIFY_SOURCE 2
778 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
780 # We use a slightly smaller set of warning options for lib/.
781 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
783 nw="$nw -Wunused-macros"
785 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
786 AC_SUBST([GNULIB_WARN_CFLAGS])
791 dnl Some other nice autoconf tests.
792 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
795 dnl if test "x$RANLIB" = x; then
800 AC_PATH_PROG(INSTALL_INFO, install-info, :,
801 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
802 dnl Don't use GZIP, which is used by gzip for additional parameters.
803 AC_PATH_PROG(GZIP_PROG, gzip)
805 if test $opsys = gnu-linux; then
806 AC_PATH_PROG(PAXCTL, paxctl,,
807 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
808 if test "X$PAXCTL" != X; then
809 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
810 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
811 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
812 else AC_MSG_RESULT(no); PAXCTL=""; fi])
816 ## Need makeinfo >= 4.7 (?) to build the manuals.
817 AC_PATH_PROG(MAKEINFO, makeinfo, no)
818 dnl By this stage, configure has already checked for egrep and set EGREP,
819 dnl or exited with an error if no egrep was found.
820 if test "$MAKEINFO" != "no"; then
822 $MAKEINFO --version 2> /dev/null |
823 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
829 ## Makeinfo is unusual. For a released Emacs, the manuals are
830 ## pre-built, and not deleted by the normal clean rules. makeinfo is
831 ## therefore in the category of "special tools" not normally required, which
832 ## configure does not have to check for (eg autoconf itself).
833 ## In a Bazaar checkout on the other hand, the manuals are not included.
834 ## So makeinfo is a requirement to build from Bazaar, and configure
835 ## should test for it as it does for any other build requirement.
836 ## We use the presence of $srcdir/info/emacs to distinguish a release,
837 ## with pre-built manuals, from a Bazaar checkout.
840 if test "$MAKEINFO" = "no"; then
842 if test "x${with_makeinfo}" = "xno"; then
844 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
845 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
846 source tree does not seem to have pre-built manuals in the `info' directory.
847 Either install a suitable version of makeinfo, or re-run configure
848 with the `--without-makeinfo' option to build without the manuals.] )
851 AC_SUBST(HAVE_MAKEINFO)
853 dnl Just so that there is only a single place we need to edit.
859 dnl Add our options to ac_link now, after it is set up.
861 if test x$GCC = xyes; then
862 test "x$GCC_LINK_TEST_OPTIONS" != x && \
863 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
865 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
866 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
869 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
870 dnl If we can link with the flag, it shouldn't do any harm anyhow.
871 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
872 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
873 dnl if not built to support GNU ld.
875 late_LDFLAGS=$LDFLAGS
876 if test x$GCC = xyes; then
877 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
879 LDFLAGS="$LDFLAGS -znocombreloc"
882 AC_MSG_CHECKING([for -znocombreloc])
883 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
884 [AC_MSG_RESULT(yes)],
885 LDFLAGS=$late_LDFLAGS
889 dnl The function dump-emacs will not be defined and temacs will do
890 dnl (load "loadup") automatically unless told otherwise.
891 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
893 your-opsys-here) CANNOT_DUMP=yes ;;
896 test "$CANNOT_DUMP" = "yes" && \
897 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
899 AC_SUBST(CANNOT_DUMP)
904 # MSDOS uses unexcoff.o
905 # MSWindows uses unexw32.o
913 UNEXEC_OBJ=unexmacosx.o
916 UNEXEC_OBJ=unexhp9k800.o
919 # Use the Solaris dldump() function, called from unexsol.c, to dump
920 # emacs, instead of the generic ELF dump code found in unexelf.c.
921 # The resulting binary has a complete symbol table, and is better
922 # for debugging and other observability tools (debuggers, pstack, etc).
924 # If you encounter a problem using dldump(), please consider sending
925 # a message to the OpenSolaris tools-linking mailing list:
926 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
928 # It is likely that dldump() works with older Solaris too, but this has
929 # not been tested, so for now this change is for Solaris 10 or newer.
937 ## Let `ld' find image libs and similar things in /usr/local/lib.
938 ## The system compiler, GCC, has apparently been modified to not
939 ## look there, contrary to what a stock GCC would do.
940 ### It's not our place to do this. See bug#10313#17.
941 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
946 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
947 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
951 ### It's not our place to do this. See bug#10313#17.
952 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
957 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
958 ## otherwise Emacs dumps core on elf systems.
959 LD_SWITCH_SYSTEM="-Z"
962 AC_SUBST(LD_SWITCH_SYSTEM)
964 ac_link="$ac_link $LD_SWITCH_SYSTEM"
966 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
967 ## which has not been defined yet. When this was handled with cpp,
968 ## it was expanded to null when configure sourced the s/*.h file.
969 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
970 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
971 ## (or somesuch), but because it is supposed to go at the _front_
972 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
973 ## Compare with the gnu-linux case below, which added to the end
974 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
975 ## LD_SWITCH_SYSTEM_TEMACS.
978 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
985 AC_CHECK_DECL([__ELF__])
986 if test "$ac_cv_have_decl___ELF__" = "yes"; then
987 ## With ELF, make sure that all common symbols get allocated to in the
988 ## data section. Otherwise, the dump of temacs may miss variables in
989 ## the shared library that have been initialized. For example, with
990 ## GNU libc, __malloc_initialized would normally be resolved to the
991 ## shared library's .bss section, which is fatal.
992 if test "x$GCC" = "xyes"; then
993 C_SWITCH_MACHINE="-fno-common"
995 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
998 UNEXEC_OBJ=unexalpha.o
1002 AC_SUBST(C_SWITCH_MACHINE)
1004 AC_SUBST(UNEXEC_OBJ)
1007 ## Some programs in src produce warnings saying certain subprograms
1008 ## are too complex and need a MAXMEM value greater than 2000 for
1009 ## additional optimization. --nils@exp-math.uni-essen.de
1010 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1011 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1012 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1013 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1014 AC_SUBST(C_SWITCH_SYSTEM)
1019 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1020 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1022 freebsd) LIBS_SYSTEM="-lutil" ;;
1024 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1026 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1028 ## Motif needs -lgen.
1029 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1031 AC_SUBST(LIBS_SYSTEM)
1034 ### Make sure subsequent tests use flags consistent with the build flags.
1036 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1037 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1039 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1042 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1043 AC_DEFUN([AC_TYPE_SIZE_T])
1044 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1045 AC_DEFUN([AC_TYPE_UID_T])
1049 dnl Current possibilities handled by sed (aix4-2 -> aix,
1050 dnl gnu-linux -> gnu/linux, etc.):
1051 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1052 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1053 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1060 ## Adding -lm confuses the dynamic linker, so omit it.
1064 SYSTEM_TYPE=berkeley-unix
1066 gnu-linux | gnu-kfreebsd )
1068 hpux10-20 | hpux11 )
1070 dnl NB this may be adjusted below.
1072 SYSTEM_TYPE=berkeley-unix
1076 SYSTEM_TYPE=usg-unix-v
1082 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1083 [The type of system you are compiling for; sets `system-type'.])
1086 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1087 pre_PKG_CONFIG_LIBS=$LIBS
1089 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1091 dnl This function definition taken from Gnome 2.0
1092 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1093 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1094 dnl also defines GSTUFF_PKG_ERRORS on error
1095 AC_DEFUN([PKG_CHECK_MODULES], [
1098 if test "$PKG_CONFIG" = "no" ; then
1099 ifelse([$4], , [AC_MSG_ERROR([
1100 *** The pkg-config script could not be found. Make sure it is in your path, or give the full name of 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.])], [$4])
1102 PKG_CONFIG_MIN_VERSION=0.9.0
1103 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1104 AC_MSG_CHECKING(for $2)
1106 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1107 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1108 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1115 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1116 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1117 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1123 ## If we have a custom action on failure, don't print errors, but
1124 ## do set a variable so people can do so. Do it in a subshell
1125 ## to capture any diagnostics in invoking pkg-config.
1126 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1127 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1133 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1134 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1138 if test $succeeded = yes; then
1139 ifelse([$3], , :, [$3])
1141 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])
1146 if test "${with_sound}" != "no"; then
1147 # Sound support for GNU/Linux and the free BSDs.
1148 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1149 have_sound_header=yes)
1150 # Emulation library used on NetBSD.
1151 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1155 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1156 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1157 if test $HAVE_ALSA = yes; then
1158 SAVE_CFLAGS="$CFLAGS"
1160 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1161 LIBS="$ALSA_LIBS $LIBS"
1162 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1163 emacs_alsa_normal=yes,
1164 emacs_alsa_normal=no)
1165 if test "$emacs_alsa_normal" != yes; then
1166 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1167 [[snd_lib_error_set_handler (0);]])],
1168 emacs_alsa_subdir=yes,
1169 emacs_alsa_subdir=no)
1170 if test "$emacs_alsa_subdir" != yes; then
1171 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1173 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1176 CFLAGS="$SAVE_CFLAGS"
1178 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1179 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1180 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1183 dnl Define HAVE_SOUND if we have sound support. We know it works and
1184 dnl compiles only on the specified platforms. For others, it
1185 dnl probably doesn't make sense to try.
1186 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1188 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1189 gnu-linux|freebsd|netbsd)
1190 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1195 AC_SUBST(CFLAGS_SOUND)
1198 dnl checks for header files
1199 AC_CHECK_HEADERS_ONCE(
1200 linux/version.h sys/systeminfo.h
1203 sys/utsname.h pwd.h utmp.h util.h)
1205 AC_MSG_CHECKING(if personality LINUX32 can be set)
1206 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1207 emacs_cv_personality_linux32=yes,
1208 emacs_cv_personality_linux32=no)
1209 AC_MSG_RESULT($emacs_cv_personality_linux32)
1211 if test $emacs_cv_personality_linux32 = yes; then
1212 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1213 [Define to 1 if personality LINUX32 can be set.])
1216 dnl On Solaris 8 there's a compilation warning for term.h because
1217 dnl it doesn't define `bool'.
1218 AC_CHECK_HEADERS(term.h, , , -)
1220 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1222 if test $ac_cv_have_decl_sys_siglist != yes; then
1223 # For Tru64, at least:
1224 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1226 if test $ac_cv_have_decl___sys_siglist = yes; then
1227 AC_DEFINE(sys_siglist, __sys_siglist,
1228 [Define to any substitute for sys_siglist.])
1233 dnl Check for speed_t typedef.
1234 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1235 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1236 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1237 if test $emacs_cv_speed_t = yes; then
1238 AC_DEFINE(HAVE_SPEED_T, 1,
1239 [Define to 1 if `speed_t' is declared by <termios.h>.])
1242 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1243 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1244 #if HAVE_SYS_SOCKET_H
1245 #include <sys/socket.h>
1247 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1248 #if HAVE_SYS_SOCKET_H
1249 #include <sys/socket.h>
1251 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1252 #if HAVE_SYS_SOCKET_H
1253 #include <sys/socket.h>
1256 dnl checks for structure members
1257 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1258 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1259 struct ifreq.ifr_addr,
1260 struct ifreq.ifr_addr.sa_len], , ,
1261 [AC_INCLUDES_DEFAULT
1262 #if HAVE_SYS_SOCKET_H
1263 #include <sys/socket.h>
1269 dnl Check for endianness.
1270 dnl AC_C_BIGENDIAN is done by gnulib.
1272 dnl check for Make feature
1273 dnl AC_PROG_MAKE_SET is done by Automake.
1278 dnl check for GNU Make if we have GCC and autodepend is on.
1279 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1280 AC_MSG_CHECKING([whether we are using GNU Make])
1282 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1283 if test "x$testval" != x; then
1286 ac_enable_autodepend=no
1288 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1289 if test $HAVE_GNU_MAKE = yes; then
1290 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1291 SAVE_CFLAGS="$CFLAGS"
1292 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1293 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1294 CFLAGS="$SAVE_CFLAGS"
1295 test -f deps.d || ac_enable_autodepend=no
1297 AC_MSG_RESULT([$ac_enable_autodepend])
1299 if test $ac_enable_autodepend = yes; then
1300 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1301 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1302 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1303 deps_frag=autodeps.mk
1306 deps_frag=$srcdir/src/$deps_frag
1309 AC_SUBST_FILE(deps_frag)
1312 lisp_frag=$srcdir/src/lisp.mk
1313 AC_SUBST_FILE(lisp_frag)
1316 dnl checks for operating system services
1317 AC_SYS_LONG_FILE_NAMES
1319 #### Choose a window system.
1321 ## We leave window_system equal to none if
1322 ## we end up building without one. Any new window system should
1323 ## set window_system to an appropriate value and add objects to
1324 ## window-system-specific substs.
1328 if test "$no_x" != yes; then
1332 LD_SWITCH_X_SITE_RPATH=
1333 if test "${x_libraries}" != NONE; then
1334 if test -n "${x_libraries}"; then
1335 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1336 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1338 x_default_search_path=""
1339 x_search_path=${x_libraries}
1340 if test -z "${x_search_path}"; then
1341 x_search_path=/usr/lib
1343 for x_library in `echo ${x_search_path}: | \
1344 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1346 ${x_library}/X11/%L/%T/%N%C%S:\
1347 ${x_library}/X11/%l/%T/%N%C%S:\
1348 ${x_library}/X11/%T/%N%C%S:\
1349 ${x_library}/X11/%L/%T/%N%S:\
1350 ${x_library}/X11/%l/%T/%N%S:\
1351 ${x_library}/X11/%T/%N%S"
1352 if test x"${x_default_search_path}" = x; then
1353 x_default_search_path=${x_search_path}
1355 x_default_search_path="${x_search_path}:${x_default_search_path}"
1359 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1361 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1362 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1365 if test x"${x_includes}" = x; then
1366 bitmapdir=/usr/include/X11/bitmaps
1368 # accumulate include directories that have X11 bitmap subdirectories
1370 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1371 if test -d "${bmd}/X11/bitmaps"; then
1372 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1374 if test -d "${bmd}/bitmaps"; then
1375 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1378 if test ${bmd_acc} != "dummyval"; then
1379 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1386 tmp_CPPFLAGS="$CPPFLAGS"
1387 tmp_CFLAGS="$CFLAGS"
1388 CPPFLAGS="$CPPFLAGS -x objective-c"
1389 CFLAGS="$CFLAGS -x objective-c"
1392 if test "${with_ns}" != no; then
1393 if test "${opsys}" = darwin; then
1395 ns_appdir=`pwd`/nextstep/Emacs.app
1396 ns_appbindir=${ns_appdir}/Contents/MacOS
1397 ns_appresdir=${ns_appdir}/Contents/Resources
1398 ns_appsrc=Cocoa/Emacs.base
1399 elif test -f $GNUSTEP_CONFIG_FILE; then
1401 ns_appdir=`pwd`/nextstep/Emacs.app
1402 ns_appbindir=${ns_appdir}
1403 ns_appresdir=${ns_appdir}/Resources
1404 ns_appsrc=GNUstep/Emacs.base
1405 dnl FIXME sourcing this several times in subshells seems inefficient.
1406 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1407 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1408 dnl I seemed to need these as well with GNUstep-startup 0.25.
1409 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1410 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1411 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1412 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1413 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1414 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1415 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1416 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1417 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1418 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1419 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1420 dnl If they had chosen to either define it or not, we could have
1421 dnl just used AC_CHECK_DECL here.
1422 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1423 emacs_cv_objc_exceptions,
1424 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1425 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1429 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1430 if test $emacs_cv_objc_exceptions = yes; then
1431 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1432 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1433 [Define if GNUstep uses ObjC exceptions.])
1434 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1438 dnl This is only used while we test the NS headers, it gets reset below.
1439 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1441 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1442 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1443 files are missing or cannot be compiled.])])
1445 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1447 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1448 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1451 #error "OSX 10.4 or newer required"
1455 ns_osx_have_104=yes,
1457 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1459 ns_have_nsinteger=yes,
1460 ns_have_nsinteger=no)
1461 if test $ns_osx_have_104 = no; then
1462 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1464 if test $ns_have_nsinteger = yes; then
1465 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1469 AC_SUBST(LIBS_GNUSTEP)
1471 INSTALL_ARCH_INDEP_EXTRA=install-etc
1472 ns_self_contained=no
1475 if test "${HAVE_NS}" = yes; then
1476 if test "$with_toolkit_scroll_bars" = "no"; then
1477 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1480 window_system=nextstep
1481 # set up packaging dirs
1482 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1483 ns_self_contained=yes
1484 prefix=${ns_appresdir}
1485 exec_prefix=${ns_appbindir}
1486 dnl This one isn't really used, only archlibdir is.
1487 libexecdir="\${ns_appbindir}/libexec"
1488 archlibdir="\${ns_appbindir}/libexec"
1489 docdir="\${ns_appresdir}/etc"
1490 etcdir="\${ns_appresdir}/etc"
1491 dnl FIXME maybe set datarootdir instead.
1492 dnl That would also get applications, icons, man.
1493 infodir="\${ns_appresdir}/info"
1494 mandir="\${ns_appresdir}/man"
1495 lispdir="\${ns_appresdir}/lisp"
1496 leimdir="\${ns_appresdir}/leim"
1497 INSTALL_ARCH_INDEP_EXTRA=
1499 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1501 CFLAGS="$tmp_CFLAGS"
1502 CPPFLAGS="$tmp_CPPFLAGS"
1503 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1504 AC_SUBST(ns_self_contained)
1506 AC_SUBST(NS_OBJC_OBJ)
1513 if test "${with_w32}" != no; then
1514 if test "${opsys}" != "cygwin"; then
1515 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1517 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1518 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1519 cannot be found.])])
1520 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1521 AC_CHECK_TOOL(WINDRES, [windres],
1522 [AC_MSG_ERROR([No resource compiler found.])])
1523 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1524 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1525 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1526 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1528 # Tell the linker that emacs.res is an object (which we compile from
1529 # the rc file), not a linker script.
1530 W32_RES_LINK="-Wl,-bpe-i386 -Wl,emacs.res"
1535 AC_SUBST(W32_RES_LINK)
1537 if test "${HAVE_W32}" = "yes"; then
1542 ## $window_system is now set to the window system we will
1550 case "${window_system}" in
1555 case "${with_x_toolkit}" in
1556 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1557 motif ) USE_X_TOOLKIT=MOTIF ;;
1559 term_header=gtkutil.h
1560 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1561 dnl USE_X_TOOLKIT is set.
1562 USE_X_TOOLKIT=none ;;
1563 gtk2 ) with_gtk2=yes
1564 term_header=gtkutil.h
1565 USE_X_TOOLKIT=none ;;
1566 gtk3 ) with_gtk3=yes
1567 term_header=gtkutil.h
1568 USE_X_TOOLKIT=none ;;
1569 no ) USE_X_TOOLKIT=none ;;
1570 dnl If user did not say whether to use a toolkit, make this decision later:
1571 dnl use the toolkit if we have gtk, or X11R5 or newer.
1572 * ) USE_X_TOOLKIT=maybe ;;
1576 term_header=nsterm.h
1579 term_header=w32term.h
1583 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1584 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1585 if test "$HAVE_XSERVER" = true ||
1586 test -n "$DISPLAY" ||
1587 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1588 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1589 were found. You should install the relevant development files for X
1590 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1591 sure you have development files for image handling, i.e.
1592 tiff, gif, jpeg, png and xpm.
1593 If you are sure you want Emacs compiled without X window support, pass
1599 ### If we're using X11, we should use the X menu package.
1602 yes ) HAVE_MENUS=yes ;;
1605 # Does the opsystem file prohibit the use of the GNU malloc?
1606 # Assume not, until told otherwise.
1610 [whether malloc is Doug Lea style],
1611 [emacs_cv_var_doug_lea_malloc],
1614 [[#include <malloc.h>
1615 static void hook (void) {}]],
1616 [[malloc_set_state (malloc_get_state ());
1617 __after_morecore_hook = hook;
1618 __malloc_initialize_hook = hook;]])],
1619 [emacs_cv_var_doug_lea_malloc=yes],
1620 [emacs_cv_var_doug_lea_malloc=no])])
1621 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1624 dnl See comments in aix4-2.h about maybe using system malloc there.
1627 ## darwin ld insists on the use of malloc routines in the System framework.
1628 darwin|sol2-10) system_malloc=yes ;;
1631 if test "${system_malloc}" = "yes"; then
1632 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1635 (The GNU allocators don't work with this system configuration.)"
1639 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1640 VMLIMIT_OBJ=vm-limit.o
1642 AC_CHECK_HEADERS([sys/vlimit.h])
1643 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1646 [[extern char data_start[]; char ch;]],
1647 [[return data_start < &ch;]])],
1648 [emacs_cv_data_start=yes],
1649 [emacs_cv_data_start=no])])
1650 if test $emacs_cv_data_start = yes; then
1651 AC_DEFINE([HAVE_DATA_START], 1,
1652 [Define to 1 if data_start is the address of the start
1653 of the main data segment.])
1656 AC_SUBST(GMALLOC_OBJ)
1657 AC_SUBST(VMLIMIT_OBJ)
1659 if test "$doug_lea_malloc" = "yes" ; then
1660 if test "$GNU_MALLOC" = yes ; then
1662 (Using Doug Lea's new malloc from the GNU C Library.)"
1664 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1665 [Define to 1 if you are using the GNU C Library.])
1667 ## Use mmap directly for allocating larger buffers.
1668 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1669 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1670 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1672 gnu*) REL_ALLOC=no ;;
1676 if test x"${REL_ALLOC}" = x; then
1677 REL_ALLOC=${GNU_MALLOC}
1680 use_mmap_for_buffers=no
1682 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1686 if test $use_mmap_for_buffers = yes; then
1687 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1691 LIBS="$LIBS_SYSTEM $LIBS"
1693 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1694 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1695 AC_CHECK_LIB(dnet, dnet_ntoa)
1696 dnl This causes -lresolv to get used in subsequent tests,
1697 dnl which causes failures on some systems such as HPUX 9.
1698 dnl AC_CHECK_LIB(resolv, gethostbyname)
1700 dnl FIXME replace main with a function we actually want from this library.
1701 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1703 dnl Check if pthreads is available.
1705 AC_CHECK_HEADERS_ONCE(pthread.h)
1706 if test "$ac_cv_header_pthread_h"; then
1707 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1708 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1709 dnl testing for pthread_self if Emacs uses gmalloc.c.
1710 if test "$GMALLOC_OBJ" = gmalloc.o; then
1711 emacs_pthread_function=pthread_atfork
1713 emacs_pthread_function=pthread_self
1715 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1717 if test "$HAVE_PTHREAD" = yes; then
1718 case "${canonical}" in
1720 *) LIB_PTHREAD="-lpthread"
1721 LIBS="$LIB_PTHREAD $LIBS" ;;
1723 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1725 AC_SUBST([LIB_PTHREAD])
1727 AC_CHECK_LIB(pthreads, cma_open)
1729 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1730 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1731 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1732 ## added to LIBS in configure would never contain the pthreads part,
1733 ## but the value used in Makefiles might. FIXME?
1735 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1736 ## be harmless on older versions of X where it happens to exist.
1737 test "$opsys" = "aix4-2" && \
1738 test $ac_cv_lib_pthreads_cma_open = yes && \
1739 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1741 dnl Check for need for bigtoc support on IBM AIX
1745 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1747 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1748 *) gdb_cv_bigtoc=-bbigtoc ;;
1751 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1752 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1757 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1758 # used for the tests that follow. We set them back to REAL_CFLAGS and
1759 # REAL_CPPFLAGS later on.
1761 REAL_CFLAGS="$CFLAGS"
1762 REAL_CPPFLAGS="$CPPFLAGS"
1764 if test "${HAVE_X11}" = "yes"; then
1765 DEFS="$C_SWITCH_X_SITE $DEFS"
1766 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1768 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1769 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1771 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1772 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1773 # but it's more convenient here to set LD_RUN_PATH since this
1774 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1775 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1776 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1780 if test "${opsys}" = "gnu-linux"; then
1781 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1782 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1783 [[XOpenDisplay ("foo");]])],
1784 [xgnu_linux_first_failure=no],
1785 [xgnu_linux_first_failure=yes])
1786 if test "${xgnu_linux_first_failure}" = "yes"; then
1787 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1788 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1789 OLD_CPPFLAGS="$CPPFLAGS"
1791 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1792 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1793 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1794 LIBS="$LIBS -b i486-linuxaout"
1795 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1796 [[XOpenDisplay ("foo");]])],
1797 [xgnu_linux_second_failure=no],
1798 [xgnu_linux_second_failure=yes])
1799 if test "${xgnu_linux_second_failure}" = "yes"; then
1800 # If we get the same failure with -b, there is no use adding -b.
1801 # So take it out. This plays safe.
1802 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1803 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1804 CPPFLAGS="$OLD_CPPFLAGS"
1815 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1816 # header files included from there.
1817 AC_MSG_CHECKING(for Xkb)
1818 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1819 #include <X11/XKBlib.h>]],
1820 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1821 emacs_xkb=yes, emacs_xkb=no)
1822 AC_MSG_RESULT($emacs_xkb)
1823 if test $emacs_xkb = yes; then
1824 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1825 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
1828 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1829 XScreenNumberOfScreen)
1832 if test "${window_system}" = "x11"; then
1833 AC_MSG_CHECKING(X11 version 6)
1834 AC_CACHE_VAL(emacs_cv_x11_version_6,
1835 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1836 [[#if XlibSpecificationRelease < 6
1839 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1840 if test $emacs_cv_x11_version_6 = yes; then
1841 AC_MSG_RESULT(6 or newer)
1842 AC_DEFINE(HAVE_X11R6, 1,
1843 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1844 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1845 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1849 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1850 [Define if you have usable X11R6-style XIM support.])
1854 AC_MSG_RESULT(before 6)
1859 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1861 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1862 if test "${with_rsvg}" != "no"; then
1863 RSVG_REQUIRED=2.11.0
1864 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1866 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1867 AC_SUBST(RSVG_CFLAGS)
1870 if test $HAVE_RSVG = yes; then
1871 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1872 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1873 LIBS="$RSVG_LIBS $LIBS"
1879 if test "${HAVE_X11}" = "yes"; then
1880 if test "${with_imagemagick}" != "no"; then
1881 ## 6.2.8 is the earliest version known to work, but earlier versions
1882 ## might work - let us know if you find one.
1883 ## 6.0.7 does not work. See bug#7955.
1884 ## 6.8.2 makes Emacs crash; see Bug#13867.
1885 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
1886 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1887 AC_SUBST(IMAGEMAGICK_CFLAGS)
1888 AC_SUBST(IMAGEMAGICK_LIBS)
1890 if test $HAVE_IMAGEMAGICK = yes; then
1891 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1892 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1893 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1894 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1904 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1907 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1909 dnl Checks for libraries.
1910 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1911 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1912 AC_MSG_ERROR($GTK_PKG_ERRORS)
1914 if test "$pkg_check_gtk" = "yes"; then
1915 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1916 GTK_OBJ=emacsgtkfixed.o
1917 term_header=gtkutil.h
1918 USE_GTK_TOOLKIT="GTK3"
1919 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
1920 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
1924 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1928 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1931 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1933 dnl Checks for libraries.
1934 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1935 if test "$pkg_check_gtk" = "no" &&
1936 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1938 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1940 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
1943 if test x"$pkg_check_gtk" = xyes; then
1945 AC_SUBST(GTK_CFLAGS)
1947 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1948 CFLAGS="$CFLAGS $GTK_CFLAGS"
1949 LIBS="$GTK_LIBS $LIBS"
1950 dnl Try to compile a simple GTK program.
1952 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
1953 if test "${GTK_COMPILES}" != "yes"; then
1954 if test "$USE_X_TOOLKIT" != "maybe"; then
1955 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
1959 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
1960 GTK_OBJ="gtkutil.o $GTK_OBJ"
1962 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
1965 AC_MSG_WARN([[Your version of Gtk+ will have problems with
1966 closing open displays. This is no problem if you just use
1967 one display, but if you use more than one and close one of them
1977 if test "${HAVE_GTK}" = "yes"; then
1979 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
1980 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
1981 if test "$with_toolkit_scroll_bars" != no; then
1982 with_toolkit_scroll_bars=yes
1985 dnl Check if we have the old file selection dialog declared and
1986 dnl in the link library. In 2.x it may be in the library,
1987 dnl but not declared if deprecated featured has been selected out.
1988 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
1989 HAVE_GTK_FILE_SELECTION=no
1990 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
1991 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
1992 #include <gtk/gtk.h>])
1993 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
1994 AC_CHECK_FUNCS(gtk_file_selection_new)
1997 dnl Same as above for gtk_handle_box.
1998 HAVE_GTK_HANDLE_BOX=no
1999 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2000 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2001 #include <gtk/gtk.h>])
2002 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2003 AC_CHECK_FUNCS(gtk_handle_box_new)
2006 dnl Same as above for gtk_tearoff_menu_item.
2007 HAVE_GTK_TEAROFF_MENU_ITEM=no
2008 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2009 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2010 #include <gtk/gtk.h>])
2011 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2012 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2015 dnl Check for functions introduced in 2.14 and later.
2016 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2017 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2018 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2019 gtk_orientable_set_orientation \
2020 gtk_window_set_has_resize_grip)
2022 term_header=gtkutil.h
2025 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2026 dnl other platforms.
2029 if test "${with_dbus}" = "yes"; then
2030 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2031 if test "$HAVE_DBUS" = yes; then
2032 LIBS="$LIBS $DBUS_LIBS"
2033 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2034 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2035 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2037 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2038 dbus_type_is_valid \
2039 dbus_validate_bus_name \
2040 dbus_validate_path \
2041 dbus_validate_interface \
2042 dbus_validate_member)
2048 dnl GSettings has been tested under GNU/Linux only.
2050 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2051 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2052 if test "$HAVE_GSETTINGS" = "yes"; then
2053 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2054 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2055 SETTINGS_LIBS="$GSETTINGS_LIBS"
2059 dnl GConf has been tested under GNU/Linux only.
2060 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2062 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2063 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2064 if test "$HAVE_GCONF" = yes; then
2065 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2066 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2067 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2068 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2072 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2073 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2074 if test "$HAVE_GOBJECT" = "yes"; then
2075 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2076 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2078 SAVE_CFLAGS="$CFLAGS"
2080 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2081 LIBS="$SETTINGS_LIBS $LIBS"
2082 AC_CHECK_FUNCS([g_type_init])
2083 CFLAGS="$SAVE_CFLAGS"
2086 AC_SUBST(SETTINGS_CFLAGS)
2087 AC_SUBST(SETTINGS_LIBS)
2090 dnl SELinux is available for GNU/Linux only.
2093 if test "${with_selinux}" = "yes"; then
2094 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2095 if test "$HAVE_LIBSELINUX" = yes; then
2096 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2097 LIBSELINUX_LIBS=-lselinux
2100 AC_SUBST(LIBSELINUX_LIBS)
2103 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2104 if test "${with_gnutls}" = "yes" ; then
2105 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2106 if test "${HAVE_GNUTLS}" = "yes"; then
2107 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2110 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2111 LIBS="$LIBGNUTLS_LIBS $LIBS"
2112 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2114 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2115 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2119 AC_SUBST(LIBGNUTLS_LIBS)
2120 AC_SUBST(LIBGNUTLS_CFLAGS)
2122 dnl inotify is only available on GNU/Linux.
2123 if test "${with_inotify}" = "yes"; then
2124 AC_CHECK_HEADERS(sys/inotify.h)
2125 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2126 AC_CHECK_FUNC(inotify_init1)
2129 if test "$ac_cv_func_inotify_init1" = yes; then
2130 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2133 dnl POSIX ACL support: provided by libacl on GNU/Linux, by libc on FreeBSD.
2136 if test "${with_acl}" = "yes"; then
2137 AC_CHECK_LIB([acl], [acl_set_file], HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2138 if test "$HAVE_POSIX_ACL" = yes; then
2139 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2142 AC_CHECK_FUNC(acl_set_file, HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2143 if test "$HAVE_POSIX_ACL" = yes; then
2144 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2148 AC_SUBST(LIBACL_LIBS)
2150 dnl Do not put whitespace before the #include statements below.
2151 dnl Older compilers (eg sunos4 cc) choke on it.
2154 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2155 if test "$with_xaw3d" != no; then
2156 AC_CACHE_VAL(emacs_cv_xaw3d,
2157 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2158 #include <X11/Intrinsic.h>
2159 #include <X11/Xaw3d/Simple.h>]],
2161 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2162 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2163 emacs_cv_xaw3d=no)])
2167 if test $emacs_cv_xaw3d = yes; then
2168 AC_MSG_CHECKING(for xaw3d)
2169 AC_MSG_RESULT([yes; using Lucid toolkit])
2173 AC_DEFINE(HAVE_XAW3D, 1,
2174 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2176 AC_MSG_CHECKING(for xaw3d)
2178 AC_MSG_CHECKING(for libXaw)
2179 AC_CACHE_VAL(emacs_cv_xaw,
2180 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2181 #include <X11/Intrinsic.h>
2182 #include <X11/Xaw/Simple.h>]],
2186 if test $emacs_cv_xaw = yes; then
2187 AC_MSG_RESULT([yes; using Lucid toolkit])
2190 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2191 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2193 AC_MSG_ERROR([No X toolkit could be found.
2194 If you are sure you want Emacs compiled without an X toolkit, pass
2196 to configure. Otherwise, install the development libraries for the toolkit
2197 that you want to use (e.g. Gtk+) and re-run configure.])
2202 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2205 if test "${USE_X_TOOLKIT}" != "none"; then
2206 AC_MSG_CHECKING(X11 toolkit version)
2207 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2208 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2209 [[#if XtSpecificationRelease < 6
2212 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2213 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2214 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2215 AC_MSG_RESULT(6 or newer)
2216 AC_DEFINE(HAVE_X11XTR6, 1,
2217 [Define to 1 if you have the X11R6 or newer version of Xt.])
2218 LIBXTR6="-lSM -lICE"
2220 ## Use libw.a along with X11R6 Xt.
2221 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2224 AC_MSG_RESULT(before 6)
2227 dnl If using toolkit, check whether libXmu.a exists.
2228 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2230 if test x$HAVE_X11XTR6 = xyes; then
2231 LIBS="-lXt -lSM -lICE $LIBS"
2235 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2236 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2237 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2241 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2242 dnl Why not just test for libxmu in the normal way?
2245 ## These systems don't supply Xmu.
2247 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2252 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2253 if test "${HAVE_X11}" = "yes"; then
2254 if test "${USE_X_TOOLKIT}" != "none"; then
2255 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2260 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2261 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2262 if test -d /usr/include/openmotif; then
2263 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2264 emacs_cv_openmotif=yes
2265 case "$canonical" in
2266 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2267 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2270 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2273 emacs_cv_openmotif=no
2275 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2276 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2277 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2280 Motif version prior to 2.1.
2282 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2283 if test $emacs_cv_motif_version_2_1 = yes; then
2284 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2285 if test x$emacs_cv_openmotif = xyes; then
2286 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2289 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2290 # We put this in CFLAGS temporarily to precede other -I options
2291 # that might be in CFLAGS temporarily.
2292 # We put this in CPPFLAGS where it precedes the other -I options.
2293 OLD_CPPFLAGS=$CPPFLAGS
2295 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2296 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2297 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2299 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2300 if test $emacs_cv_lesstif = yes; then
2301 # Make sure this -I option remains in CPPFLAGS after it is set
2302 # back to REAL_CPPFLAGS.
2303 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2304 # have those other -I options anyway. Ultimately, having this
2305 # directory ultimately in CPPFLAGS will be enough.
2306 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2307 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2310 CPPFLAGS=$OLD_CPPFLAGS
2313 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2314 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2317 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2318 dnl using Motif or Xaw3d is available, and unless
2319 dnl --with-toolkit-scroll-bars=no was specified.
2321 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2322 [Define to 1 if we should use toolkit scroll bars.])dnl
2323 USE_TOOLKIT_SCROLL_BARS=no
2324 if test "${with_toolkit_scroll_bars}" != "no"; then
2325 if test "${USE_X_TOOLKIT}" != "none"; then
2326 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2327 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2329 USE_TOOLKIT_SCROLL_BARS=yes
2330 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2331 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2332 USE_TOOLKIT_SCROLL_BARS=yes
2334 elif test "${HAVE_GTK}" = "yes"; then
2335 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2336 USE_TOOLKIT_SCROLL_BARS=yes
2337 elif test "${HAVE_NS}" = "yes"; then
2338 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2339 USE_TOOLKIT_SCROLL_BARS=yes
2340 elif test "${HAVE_W32}" = "yes"; then
2341 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2342 USE_TOOLKIT_SCROLL_BARS=yes
2346 dnl See if XIM is available.
2347 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2348 #include <X11/Xlib.h>
2349 #include <X11/Xresource.h>]],
2350 [[XIMProc callback;]])],
2352 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2355 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2357 if test "${with_xim}" != "no"; then
2358 AC_DEFINE(USE_XIM, 1,
2359 [Define to 1 if we should use XIM, if it is available.])
2363 if test "${HAVE_XIM}" != "no"; then
2365 if test "$GCC" = yes; then
2366 CFLAGS="$CFLAGS --pedantic-errors"
2368 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2369 #include <X11/Xlib.h>
2370 #include <X11/Xresource.h>]],
2376 XPointer *client_data;
2378 /* If we're not using GCC, it's probably not XFree86, and this is
2379 probably right, but we can't use something like --pedantic-errors. */
2380 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2381 char*, XIMProc, XPointer*);
2383 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2385 [emacs_cv_arg6_star=yes])
2386 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2387 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2388 either XPointer or XPointer*.])dnl
2389 if test "$emacs_cv_arg6_star" = yes; then
2390 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2392 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2397 ### Start of font-backend (under any platform) section.
2398 # (nothing here yet -- this is a placeholder)
2399 ### End of font-backend (under any platform) section.
2401 ### Start of font-backend (under X11) section.
2402 if test "${HAVE_X11}" = "yes"; then
2403 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2405 ## Use -lXft if available, unless `--with-xft=no'.
2407 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2410 if test "x${with_xft}" != "xno"; then
2412 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2413 ## Because xftfont.c uses XRenderQueryExtension, we also
2414 ## need to link to -lXrender.
2416 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2417 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2418 OLD_CPPFLAGS="$CPPFLAGS"
2419 OLD_CFLAGS="$CFLAGS"
2421 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2422 CFLAGS="$CFLAGS $XFT_CFLAGS"
2423 XFT_LIBS="-lXrender $XFT_LIBS"
2424 LIBS="$XFT_LIBS $LIBS"
2425 AC_CHECK_HEADER(X11/Xft/Xft.h,
2426 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2428 if test "${HAVE_XFT}" = "yes"; then
2429 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2431 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2433 CPPFLAGS="$OLD_CPPFLAGS"
2434 CFLAGS="$OLD_CFLAGS"
2436 fi # "${HAVE_XFT}" = "yes"
2437 fi # "$HAVE_XFT" != no
2438 fi # "x${with_xft}" != "xno"
2440 ## We used to allow building with FreeType and without Xft.
2441 ## However, the ftx font backend driver is not in good shape.
2442 if test "$HAVE_XFT" != "yes"; then
2443 dnl For the "Does Emacs use" message at the end.
2447 dnl Strict linkers fail with
2448 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2449 dnl if -lfreetype is not specified.
2450 dnl The following is needed to set FREETYPE_LIBS.
2451 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2454 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2458 if test "${HAVE_FREETYPE}" = "yes"; then
2459 AC_DEFINE(HAVE_FREETYPE, 1,
2460 [Define to 1 if using the freetype and fontconfig libraries.])
2461 if test "${with_libotf}" != "no"; then
2462 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2464 if test "$HAVE_LIBOTF" = "yes"; then
2465 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2466 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2467 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2468 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2469 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2470 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2471 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2475 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2476 dnl Does the new font backend require it, or can it work without it?
2480 if test "${HAVE_LIBOTF}" = yes; then
2481 if test "${with_m17n_flt}" != "no"; then
2482 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2483 if test "$HAVE_M17N_FLT" = "yes"; then
2484 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2495 ### End of font-backend (under X11) section.
2497 AC_SUBST(FREETYPE_CFLAGS)
2498 AC_SUBST(FREETYPE_LIBS)
2499 AC_SUBST(FONTCONFIG_CFLAGS)
2500 AC_SUBST(FONTCONFIG_LIBS)
2501 AC_SUBST(LIBOTF_CFLAGS)
2502 AC_SUBST(LIBOTF_LIBS)
2503 AC_SUBST(M17N_FLT_CFLAGS)
2504 AC_SUBST(M17N_FLT_LIBS)
2506 ### Use -lXpm if available, unless `--with-xpm=no'.
2510 if test "${HAVE_W32}" = "yes"; then
2511 if test "${with_xpm}" != "no"; then
2512 SAVE_CPPFLAGS="$CPPFLAGS"
2513 SAVE_LDFLAGS="$LDFLAGS"
2514 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2515 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2516 AC_CHECK_HEADER(X11/xpm.h,
2517 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2518 if test "${HAVE_XPM}" = "yes"; then
2519 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2520 AC_EGREP_CPP(no_return_alloc_pixels,
2521 [#include "X11/xpm.h"
2522 #ifndef XpmReturnAllocPixels
2523 no_return_alloc_pixels
2525 ], HAVE_XPM=no, HAVE_XPM=yes)
2527 if test "${HAVE_XPM}" = "yes"; then
2528 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2532 CPPFLAGS="$SAVE_CPPFLAGS"
2533 LDFLAGS="$SAVE_LDFLAGS"
2538 if test "${HAVE_XPM}" = "yes"; then
2539 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2544 if test "${HAVE_X11}" = "yes"; then
2545 if test "${with_xpm}" != "no"; then
2546 AC_CHECK_HEADER(X11/xpm.h,
2547 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2548 if test "${HAVE_XPM}" = "yes"; then
2549 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2550 AC_EGREP_CPP(no_return_alloc_pixels,
2551 [#include "X11/xpm.h"
2552 #ifndef XpmReturnAllocPixels
2553 no_return_alloc_pixels
2555 ], HAVE_XPM=no, HAVE_XPM=yes)
2557 if test "${HAVE_XPM}" = "yes"; then
2565 if test "${HAVE_XPM}" = "yes"; then
2566 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2573 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2576 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2577 if test "${with_jpeg}" != "no"; then
2578 dnl Checking for jpeglib.h can lose because of a redefinition of
2580 AC_CHECK_HEADER(jerror.h,
2581 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2584 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2585 if test "${HAVE_JPEG}" = "yes"; then
2586 AC_DEFINE(HAVE_JPEG)
2587 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2588 [#include <jpeglib.h>
2589 version=JPEG_LIB_VERSION
2591 [AC_DEFINE(HAVE_JPEG)],
2592 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2595 if test "${HAVE_JPEG}" = "yes"; then
2601 ### Use -lpng if available, unless `--with-png=no'.
2604 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2605 if test "${with_png}" != "no"; then
2606 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2607 # in /usr/include/libpng.
2608 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2609 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2610 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2614 if test "${HAVE_PNG}" = "yes"; then
2615 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2616 LIBPNG="-lpng -lz -lm"
2618 AC_CHECK_DECL(png_longjmp,
2620 [AC_DEFINE(PNG_DEPSTRUCT, [],
2621 [Define to empty to suppress deprecation warnings when building
2622 with --enable-gcc-warnings and with libpng versions before 1.5,
2623 which lack png_longjmp.])],
2624 [[#ifdef HAVE_LIBPNG_PNG_H
2625 # include <libpng/png.h>
2634 ### Use -ltiff if available, unless `--with-tiff=no'.
2637 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2638 if test "${with_tiff}" != "no"; then
2639 AC_CHECK_HEADER(tiffio.h,
2641 # At least one tiff package requires the jpeg library.
2642 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2643 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2646 if test "${HAVE_TIFF}" = "yes"; then
2647 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2648 dnl FIXME -lz -lm, as per libpng?
2654 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2657 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2658 || test "${HAVE_W32}" = "yes"; then
2659 AC_CHECK_HEADER(gif_lib.h,
2660 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2661 # Earlier versions can crash Emacs.
2662 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2664 if test "$HAVE_GIF" = yes; then
2666 elif test "$HAVE_GIF" = maybe; then
2667 # If gif_lib.h but no libgif, try libungif.
2668 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2669 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2672 if test "${HAVE_GIF}" = "yes"; then
2673 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2678 dnl Check for required libraries.
2679 if test "${HAVE_X11}" = "yes"; then
2682 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2683 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2684 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2685 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2686 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2687 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2688 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2689 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2690 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2691 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2693 if test "X${MISSING}" != X; then
2694 AC_MSG_ERROR([The following required libraries were not found:
2696 Maybe some development libraries/packages are missing?
2697 If you don't want to link with them give
2699 as options to configure])
2703 ### Use -lgpm if available, unless `--with-gpm=no'.
2706 if test "${with_gpm}" != "no"; then
2707 AC_CHECK_HEADER(gpm.h,
2708 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2710 if test "${HAVE_GPM}" = "yes"; then
2711 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2717 dnl Check for malloc/malloc.h on darwin
2718 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2721 ### Use NeXTstep API to implement GUI.
2722 if test "${HAVE_NS}" = "yes"; then
2723 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2724 if test "${NS_IMPL_COCOA}" = "yes"; then
2725 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2727 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2728 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2729 # See also .m.o rule in Makefile.in */
2730 # FIXME: are all these flags really needed? Document here why. */
2731 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2732 ## Extra CFLAGS applied to src/*.m files.
2733 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"
2735 # We also have mouse menus.
2740 if test "${HAVE_W32}" = "yes"; then
2744 ### Use session management (-lSM -lICE) if available
2747 if test "${HAVE_X11}" = "yes"; then
2748 AC_CHECK_HEADER(X11/SM/SMlib.h,
2749 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2751 if test "${HAVE_X_SM}" = "yes"; then
2752 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2756 *) LIBS="$LIBXSM $LIBS" ;;
2762 ### Use libxml (-lxml2) if available
2764 if test "${with_xml2}" != "no"; then
2765 ### I'm not sure what the version number should be, so I just guessed.
2766 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2767 if test "${HAVE_LIBXML2}" = "yes"; then
2768 LIBS="$LIBXML2_LIBS $LIBS"
2769 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2770 if test "${HAVE_LIBXML2}" = "yes"; then
2771 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2778 AC_SUBST(LIBXML2_LIBS)
2779 AC_SUBST(LIBXML2_CFLAGS)
2781 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2782 AC_CACHE_CHECK(whether netdb declares h_errno,
2783 emacs_cv_netdb_declares_h_errno,
2784 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2785 [[return h_errno;]])],
2786 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2787 if test $emacs_cv_netdb_declares_h_errno = yes; then
2788 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2791 # sqrt and other floating-point functions such as fmod and frexp
2792 # are found in -lm on most systems.
2793 AC_CHECK_LIB(m, sqrt)
2795 # Check for mail-locking functions in a "mail" library. Probably this should
2796 # have the same check as for liblockfile below.
2797 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2798 if test $have_mail = yes; then
2800 LIBS="$LIBS_MAIL $LIBS"
2801 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2805 dnl Debian, at least:
2806 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2807 if test $have_lockfile = yes; then
2808 LIBS_MAIL=-llockfile
2809 LIBS="$LIBS_MAIL $LIBS"
2810 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2812 # If we have the shared liblockfile, assume we must use it for mail
2813 # locking (e.g. Debian). If we couldn't link against liblockfile
2814 # (no liblockfile.a installed), ensure that we don't need to.
2815 dnl This works for files generally, not just executables.
2816 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2817 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2818 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2819 if test $ac_cv_prog_liblockfile = yes; then
2820 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2821 This probably means that movemail could lose mail.
2822 There may be a `development' package to install containing liblockfile.])
2825 AC_CHECK_HEADERS_ONCE(maillock.h)
2828 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2829 ## interlock access to the mail spool. The alternative is a lock file named
2830 ## /usr/spool/mail/$USER.lock.
2833 aix4-2) mail_lock="lockf" ;;
2835 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2837 ## On GNU/Linux systems, both methods are used by various mail programs.
2838 ## I assume most people are using newer mailers that have heard of flock.
2839 ## Change this if you need to.
2840 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2841 ## configure gets the right answers, and that means *NOT* using flock.
2842 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2843 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2844 ## Debian maintainer hasn't provided a clean fix for Emacs.
2845 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2846 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2847 ## correct logic. -- fx
2848 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2849 ## liblockfile is a Free Software replacement for libmail, used on
2850 ## Debian systems and elsewhere. -rfr.
2853 if test $have_mail = yes || test $have_lockfile = yes; then
2854 test $ac_cv_header_maillock_h = yes && mail_lock=no
2860 case "$mail_lock" in
2861 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2863 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2865 *) BLESSMAIL_TARGET="need-blessmail" ;;
2867 AC_SUBST(BLESSMAIL_TARGET)
2870 AC_CHECK_FUNCS(gethostname \
2871 getrusage get_current_dir_name \
2873 select getpagesize setlocale \
2874 utimes getrlimit setrlimit shutdown getaddrinfo \
2875 strsignal setitimer \
2876 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2877 gai_strerror mkstemp getline getdelim sync \
2878 difftime posix_memalign \
2879 getpwent endpwent getgrent endgrent \
2881 cfmakeraw cfsetspeed copysign __executable_start)
2883 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2884 ## has a broken `rint' in some library versions including math library
2885 ## version number A.09.05.
2886 ## You can fix the math library by installing patch number PHSS_4630.
2887 ## But we can fix it more reliably for Emacs by just not using rint.
2888 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2891 *) AC_CHECK_FUNCS(random rint) ;;
2894 dnl Cannot use AC_CHECK_FUNCS
2895 AC_CACHE_CHECK([for __builtin_unwind_init],
2896 emacs_cv_func___builtin_unwind_init,
2897 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2898 emacs_cv_func___builtin_unwind_init=yes,
2899 emacs_cv_func___builtin_unwind_init=no)])
2900 if test $emacs_cv_func___builtin_unwind_init = yes; then
2901 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2902 [Define to 1 if you have the `__builtin_unwind_init' function.])
2905 AC_CHECK_HEADERS_ONCE(sys/un.h)
2910 AC_CHECK_FUNCS(grantpt)
2912 # PTY-related GNU extensions.
2913 AC_CHECK_FUNCS(getpt posix_openpt)
2915 # Check this now, so that we will NOT find the above functions in ncurses.
2916 # That is because we have not set up to link ncurses in lib-src.
2917 # It's better to believe a function is not available
2918 # than to expect to find it in ncurses.
2919 # Also we need tputs and friends to be able to build at all.
2920 AC_MSG_CHECKING([for library containing tputs])
2921 # Run a test program that contains a call to tputs, a call that is
2922 # never executed. This tests whether a pre-'main' dynamic linker
2923 # works with the library. It's too much trouble to actually call
2924 # tputs in the test program, due to portability hassles. When
2925 # cross-compiling, assume the test program will run if it links.
2926 AC_DEFUN([tputs_link_source], [
2928 [[extern void tputs (const char *, int, int (*)(int));
2929 int main (int argc, char **argv)
2932 tputs (argv[0], 0, 0);
2936 # Maybe curses should be tried earlier?
2937 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2938 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2940 if test -z "$tputs_library"; then
2944 LIBS_TERMCAP=-l$tputs_library
2946 LIBS="$LIBS_TERMCAP $LIBS"
2948 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
2949 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
2951 if test "X$msg" != Xno; then
2955 AC_MSG_RESULT([$msg])
2956 if test "X$msg" = Xno; then
2957 AC_MSG_ERROR([The required function `tputs' was not found in any library.
2958 The following libraries were tried (in order):
2959 libtinfo, libncurses, libterminfo, libtermcap, libcurses
2960 Please try installing whichever of these libraries is most appropriate
2961 for your system, together with its header files.
2962 For example, a libncurses-dev(el) or similar package.])
2965 ## Use termcap instead of terminfo?
2966 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
2968 ## FIXME? In the cases below where we unconditionally set
2969 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
2970 ## if that was found above to have tputs.
2971 ## Should we use the gnu* logic everywhere?
2973 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
2974 ## The ncurses library has been moved out of the System framework in
2975 ## Mac OS X 10.2. So if configure detects it, set the command-line
2976 ## option to use it.
2977 darwin) LIBS_TERMCAP="-lncurses" ;;
2979 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
2982 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
2983 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
2984 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
2985 [[#if __FreeBSD_version < 400000
2988 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
2990 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
2992 if test $emacs_cv_freebsd_terminfo = yes; then
2993 LIBS_TERMCAP="-lncurses"
2996 LIBS_TERMCAP="-ltermcap"
3001 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3003 LIBS_TERMCAP="-ltermcap"
3007 openbsd) LIBS_TERMCAP="-lncurses" ;;
3009 ## hpux: Make sure we get select from libc rather than from libcurses
3010 ## because libcurses on HPUX 10.10 has a broken version of select.
3011 ## We used to use -lc -lcurses, but this may be cleaner.
3012 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3013 # set that way, now it uses the default). Isn't this a contradiction?
3014 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3018 TERMCAP_OBJ=tparam.o
3019 if test $TERMINFO = yes; then
3020 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3021 TERMCAP_OBJ=terminfo.o
3023 AC_SUBST(LIBS_TERMCAP)
3024 AC_SUBST(TERMCAP_OBJ)
3027 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3028 # On Darwin, res_init appears not to be useful: see bug#562 and
3029 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3032 if test $opsys != darwin; then
3034 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3035 #include <arpa/nameser.h>
3036 #include <resolv.h>]],
3037 [[return res_init();]])],
3038 have_res_init=yes, have_res_init=no)
3039 if test "$have_res_init" = no; then
3041 LIBS="$LIBS -lresolv"
3042 AC_MSG_CHECKING(for res_init with -lresolv)
3043 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3044 #include <arpa/nameser.h>
3045 #include <resolv.h>]],
3046 [[return res_init();]])],
3047 have_res_init=yes, have_res_init=no)
3048 AC_MSG_RESULT($have_res_init)
3049 if test "$have_res_init" = yes ; then
3055 if test "$have_res_init" = yes; then
3056 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3060 # Do we need the Hesiod library to provide the support routines?
3061 dnl FIXME? Should we be skipping this on Darwin too?
3063 if test "$with_hesiod" != no ; then
3064 # Don't set $LIBS here -- see comments above. FIXME which comments?
3065 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3066 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3067 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3068 if test "$resolv" = yes ; then
3073 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3074 hesiod=yes, :, $RESOLVLIB)])
3076 if test x"$hesiod" = xyes; then
3077 AC_DEFINE(HAVE_LIBHESIOD, 1,
3078 [Define to 1 if you have the hesiod library (-lhesiod).])
3084 # Do we need libresolv (due to res_init or Hesiod)?
3085 if test "$resolv" = yes && test $opsys != darwin; then
3086 AC_DEFINE(HAVE_LIBRESOLV, 1,
3087 [Define to 1 if you have the resolv library (-lresolv).])
3094 # These tell us which Kerberos-related libraries to use.
3101 if test "${with_kerberos}" != no; then
3102 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3103 if test $have_com_err = yes; then
3104 COM_ERRLIB=-lcom_err
3105 LIBS="$COM_ERRLIB $LIBS"
3106 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3108 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3109 if test $have_crypto = yes; then
3111 LIBS="$CRYPTOLIB $LIBS"
3112 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3114 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3115 if test $have_k5crypto = yes; then
3116 CRYPTOLIB=-lk5crypto
3117 LIBS="$CRYPTOLIB $LIBS"
3118 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3120 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3121 if test $have_krb5=yes; then
3123 LIBS="$KRB5LIB $LIBS"
3124 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3126 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3127 if test "${with_kerberos5}" = no; then
3128 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3129 if test $have_des425 = yes; then
3131 LIBS="$DESLIB $LIBS"
3132 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3134 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3135 if test $have_des = yes; then
3137 LIBS="$DESLIB $LIBS"
3138 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3141 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3142 if test $have_krb4 = yes; then
3144 LIBS="$KRB4LIB $LIBS"
3145 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3147 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3148 if test $have_krb = yes; then
3150 LIBS="$KRB4LIB $LIBS"
3151 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3156 if test "${with_kerberos5}" != no; then
3157 AC_CHECK_HEADERS(krb5.h,
3158 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3159 [#include <krb5.h>])])
3161 AC_CHECK_HEADERS(des.h,,
3162 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3163 [AC_CHECK_HEADERS(kerberos/des.h)])])
3164 AC_CHECK_HEADERS(krb.h,,
3165 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3166 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3168 AC_CHECK_HEADERS(com_err.h)
3171 AC_SUBST(COM_ERRLIB)
3177 AC_CHECK_FUNCS_ONCE(tzset)
3178 AC_MSG_CHECKING(whether localtime caches TZ)
3179 AC_CACHE_VAL(emacs_cv_localtime_cache,
3180 [if test x$ac_cv_func_tzset = xyes; then
3181 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3182 char TZ_GMT0[] = "TZ=GMT0";
3183 char TZ_PST8[] = "TZ=PST8";
3186 time_t now = time ((time_t *) 0);
3187 int hour_GMT0, hour_unset;
3188 if (putenv (TZ_GMT0) != 0)
3190 hour_GMT0 = localtime (&now)->tm_hour;
3192 hour_unset = localtime (&now)->tm_hour;
3193 if (putenv (TZ_PST8) != 0)
3195 if (localtime (&now)->tm_hour == hour_GMT0)
3198 if (localtime (&now)->tm_hour != hour_unset)
3201 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3202 [# If we have tzset, assume the worst when cross-compiling.
3203 emacs_cv_localtime_cache=yes])
3205 # If we lack tzset, report that localtime does not cache TZ,
3206 # since we can't invalidate the cache if we don't have tzset.
3207 emacs_cv_localtime_cache=no
3209 AC_MSG_RESULT($emacs_cv_localtime_cache)
3210 if test $emacs_cv_localtime_cache = yes; then
3211 AC_DEFINE(LOCALTIME_CACHE, 1,
3212 [Define to 1 if localtime caches TZ.])
3216 AC_CHECK_FUNC(socket, , ok_so_far=no)
3217 if test $ok_so_far = yes; then
3218 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3220 if test $ok_so_far = yes; then
3221 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3223 if test $ok_so_far = yes; then
3224 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3225 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3226 [Define to 1 if you have inet sockets.])
3229 if test -f /usr/lpp/X11/bin/smt.exp; then
3230 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3231 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3234 AC_MSG_CHECKING(whether system supports dynamic ptys)
3235 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3237 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3242 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3243 dnl This can be removed once we assume Autoconf 2.70.
3245 *-solaris2.4 | *-solaris2.4.*)
3246 dnl Disable the Autoconf-generated vfork test.
3247 : ${ac_cv_func_vfork_works=no};;
3252 AC_CHECK_FUNCS(snprintf)
3254 dnl Adapted from Haible's version.
3255 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3256 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3257 [[char* cs = nl_langinfo(CODESET);]])],
3258 emacs_cv_langinfo_codeset=yes,
3259 emacs_cv_langinfo_codeset=no)
3261 if test $emacs_cv_langinfo_codeset = yes; then
3262 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3263 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3268 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3269 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3270 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3271 if test "$emacs_cv_c_restrict_arr" = yes; then
3272 AC_DEFINE(__restrict_arr, __restrict,
3273 [Define to compiler's equivalent of C99 restrict keyword in array
3274 declarations. Define as empty for no equivalent.])
3277 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3278 dnl how the tty code is related to POSIX and/or other versions of termios.
3279 dnl The following looks like a useful start.
3281 dnl AC_SYS_POSIX_TERMIOS
3282 dnl if test $ac_cv_sys_posix_termios = yes; then
3283 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3284 dnl and macros for terminal control.])
3285 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3288 dnl Turned on June 1996 supposing nobody will mind it.
3289 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3290 in the full name stands for the login id.])
3292 dnl Every platform that uses configure (ie every non-MS platform)
3293 dnl supports this. There is a create-lockfiles option you can
3294 dnl customize if you do not want the lock files to be written.
3295 dnl So it is not clear that this #define still needs to exist.
3296 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3297 so that Emacs can tell instantly when you try to modify a file that
3298 someone else has modified in his/her Emacs.])
3300 dnl Everybody supports this, except MS.
3301 dnl Seems like the kind of thing we should be testing for, though.
3302 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3303 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3305 dnl Everybody supports this, except MS-DOS.
3306 dnl Seems like the kind of thing we should be testing for, though.
3307 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3308 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3309 4.2-compatible sockets.])
3311 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3313 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3314 a null file, or a data sink.])
3316 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3318 dnl Everybody supports this, except MS-DOS.
3319 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3321 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3324 AC_DEFINE(DIRECTORY_SEP, ['/'],
3325 [Character that separates directories in a file name.])
3327 dnl Only used on MS platforms.
3328 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3330 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3331 [Returns true if character is a device separator.])
3333 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3334 [Returns true if character is a directory separator.])
3336 dnl On MS, this also accepts IS_DEVICE_SEP.
3337 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3338 [Returns true if character is any form of separator.])
3341 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3345 dnl Unfortunately without libXmu we cannot support EditRes.
3346 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3347 AC_DEFINE(NO_EDITRES, 1)
3352 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3353 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3354 AC_DEFINE(NO_EDITRES, 1)
3360 irix6-5 | sol2* | unixware )
3361 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3362 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3363 dnl need the constant to dimension an array. So wire in the appropriate
3365 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3369 emacs_broken_SIGIO=no
3372 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3373 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3374 hpux* | irix6-5 | openbsd | sol2* | unixware )
3375 emacs_broken_SIGIO=yes
3379 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3380 dnl the way this system works, libc functions that return malloced
3381 dnl memory use the libc malloc implementation. Calling xfree or
3382 dnl xrealloc on the results of such functions results in a crash.
3384 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3385 dnl but that does not currently work on this system.
3387 dnl It is possible to completely override the malloc implementation on
3388 dnl AIX, but that involves putting the malloc functions in a shared
3389 dnl library and setting the MALLOCTYPE environment variable to point to
3390 dnl that shared library.
3392 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3393 dnl to avoid a crash just use the Emacs implementation for that function.
3395 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3396 dnl of this file, so that we do not check for get_current_dir_name
3397 dnl on AIX. But that might be fragile if something else ends
3398 dnl up testing for get_current_dir_name as a dependency.
3399 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3400 get_current_dir_name should not be used.])
3404 dnl Circumvent a bug in FreeBSD. In the following sequence of
3405 dnl writes/reads on a PTY, read(2) returns bogus data:
3407 dnl write(2) 1022 bytes
3408 dnl write(2) 954 bytes, get EAGAIN
3409 dnl read(2) 1024 bytes in process_read_output
3410 dnl read(2) 11 bytes in process_read_output
3412 dnl That is, read(2) returns more bytes than have ever been written
3413 dnl successfully. The 1033 bytes read are the 1022 bytes written
3414 dnl successfully after processing (for example with CRs added if the
3415 dnl terminal is set up that way which it is here). The same bytes will
3416 dnl be seen again in a later read(2), without the CRs.
3417 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3418 work around an issue when reading from a PTY.])
3424 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3425 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3430 darwin | freebsd | netbsd | openbsd )
3431 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3432 close a pty to make it a controlling terminal (it is already a
3433 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3437 dnl FIXME Surely we can test for this rather than hard-code it.
3439 netbsd | openbsd) sound_device="/dev/audio" ;;
3440 *) sound_device="/dev/dsp" ;;
3444 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3445 [Name of the default sound device.])
3448 dnl Emacs can read input using SIGIO and buffering characters itself,
3449 dnl or using CBREAK mode and making C-g cause SIGINT.
3450 dnl The choice is controlled by the variable interrupt_input.
3452 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3454 dnl Emacs uses the presence of the USABLE_SIGIO macro
3455 dnl to indicate whether or not signal-driven I/O is possible. It uses
3456 dnl INTERRUPT_INPUT to decide whether to use it by default.
3458 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3459 dnl CBREAK mode has two disadvantages
3460 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3461 dnl I hear that in system V this problem does not exist.
3462 dnl 2) Control-G causes output to be discarded.
3463 dnl I do not know whether this can be fixed in system V.
3465 dnl Another method of doing input is planned but not implemented.
3466 dnl It would have Emacs fork off a separate process
3467 dnl to read the input and send it to the true Emacs process
3470 darwin | gnu-linux | gnu-kfreebsd )
3471 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3476 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3477 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3478 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3479 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3480 dnl taking float or double parameters.
3482 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3483 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3484 file defines `NeedWidePrototypes' as `NO'.])
3489 dnl Used in process.c, this must be a loop, even if it only runs once.
3490 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3491 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3492 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3493 dnl trying suffixes 0-16.
3494 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3495 first PTY, if PTYs are supported.])
3496 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3497 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3498 end of a PTY, if non-standard.])
3499 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3500 end of a PTY, if non-standard.])
3504 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3505 dnl You allocate a pty by opening /dev/ptc to get the master side.
3506 dnl To get the name of the slave side, you just ttyname() the master side.
3507 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3508 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3512 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3513 dnl multi-line AC_DEFINEs are hard. :(
3514 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (0)])
3515 AC_DEFINE(PTY_NAME_SPRINTF, [])
3516 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3519 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3521 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3522 dnl Not used, because PTY_ITERATION is defined.
3523 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3524 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3525 dnl But we don't have to block SIGCHLD because it is blocked in the
3526 dnl implementation of grantpt.
3527 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3528 AC_DEFINE(PTY_NAME_SPRINTF, [])
3529 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3533 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3536 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3538 if test "x$ac_cv_func_grantpt" = xyes; then
3539 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3540 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3541 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3542 dnl to prevent sigchld_handler from intercepting the child's death.
3543 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3544 dnl if HAVE_POSIX_OPENPT
3545 if test "x$ac_cv_func_posix_openpt" = xyes; then
3546 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3547 AC_DEFINE(PTY_NAME_SPRINTF, [])
3549 elif test "x$ac_cv_func_getpt" = xyes; then
3550 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3551 AC_DEFINE(PTY_NAME_SPRINTF, [])
3553 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3556 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3561 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3562 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3563 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3567 dnl It looks like this cannot be right, because it is not a loop.
3568 dnl However, process.c actually does this:
3574 dnl which presumably makes it OK, since irix == sgi (?).
3575 dnl FIXME it seems like this special treatment is unnecessary?
3576 dnl Why can't irix use a single-trip loop like eg cygwin?
3577 AC_DEFINE(PTY_ITERATION, [])
3578 dnl Not used, because PTY_ITERATION is defined.
3579 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3580 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(SIGCHLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCHLD, &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); }])
3581 dnl No need to get the pty name at all.
3582 AC_DEFINE(PTY_NAME_SPRINTF, [])
3583 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3584 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3588 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3589 dnl from intercepting that death. If any child but grantpt's should die
3590 dnl within, it should be caught after sigrelse(2).
3591 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3595 dnl Comments are as per sol2*.
3596 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); 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); }])
3603 dnl This change means that we don't loop through allocate_pty too
3604 dnl many times in the (rare) event of a failure.
3605 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3606 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3607 dnl Push various streams modules onto a PTY channel. Used in process.c.
3608 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.])
3613 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3614 "typing" a signal character on the pty.])
3617 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3618 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3619 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd | darwin )
3620 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3623 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3624 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3625 gnu-linux | gnu-kfreebsd )
3627 AC_MSG_CHECKING([for signals via characters])
3628 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3629 #include <linux/version.h>
3630 #if LINUX_VERSION_CODE < 0x20400
3631 # error "Linux version too old"
3633 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3635 AC_MSG_RESULT([$emacs_signals_via_chars])
3636 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3641 dnl Used in lisp.h, emacs.c, vm-limit.c
3642 dnl NEWS.18 describes this as "a number which contains
3643 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3644 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3645 stored in a Lisp_Object.])
3646 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3650 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
3651 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
3654 dnl The data segment on this machine always starts at address 0x40000000.
3655 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3658 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3663 AH_TEMPLATE(TAB3, [Undocumented.])
3666 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3668 gnu | freebsd | netbsd | openbsd )
3669 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3670 AC_DEFINE(TAB3, OXTABS)
3673 gnu-linux | gnu-kfreebsd )
3674 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3678 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3679 [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)],
3680 [Mark a secondary stack, like the register stack on the ia64.]), [])
3684 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3685 run_time_remap; for HPUX.])
3690 dnl This won't be used automatically yet. We also need to know, at least,
3691 dnl that the stack is continuous.
3692 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3693 registers relevant for conservative garbage collection in the jmp_buf.])
3697 dnl Not all the architectures are tested, but there are Debian packages
3698 dnl for SCM and/or Guile on them, so the technique must work. See also
3699 dnl comments in alloc.c concerning setjmp and gcc.
3700 dnl Fixme: it's probably safe to just use the GCC conditional below.
3701 gnu-linux | gnu-kfreebsd )
3702 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3703 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3704 || defined __alpha__ || defined __mips__ || defined __s390__ \
3705 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3706 || defined __ia64__ || defined __sh__
3709 # error "setjmp not known to work on this arch"
3711 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
3716 if test x$GCC = xyes; then
3717 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3718 AC_DEFINE(GC_SETJMP_WORKS, 1)
3721 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3722 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3723 AC_DEFINE(GC_SETJMP_WORKS, 1)
3728 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3731 [[#include <setjmp.h>
3735 _longjmp (j, 1);]])],
3736 [emacs_cv_func__setjmp=yes],
3737 [emacs_cv_func__setjmp=no])])
3738 if test $emacs_cv_func__setjmp = yes; then
3739 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3741 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3744 [[#include <setjmp.h>
3747 if (! sigsetjmp (j, 1))
3748 siglongjmp (j, 1);]])],
3749 [emacs_cv_func_sigsetjmp=yes],
3750 [emacs_cv_func_sigsetjmp=no])])
3751 if test $emacs_cv_func_sigsetjmp = yes; then
3752 AC_DEFINE([HAVE_SIGSETJMP], 1,
3753 [Define to 1 if sigsetjmp and siglongjmp work.
3754 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3760 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3761 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3762 dnl and this is all we need.
3763 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3770 dnl Used in xfaces.c.
3771 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3772 some systems, where it requires time.h.])
3777 dnl Define symbols to identify the version of Unix this is.
3778 dnl Define all the symbols that apply correctly.
3779 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3780 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3781 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3782 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3783 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3789 dnl This symbol should be defined on AIX Version 3 ???????
3790 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3792 # error "_AIX not defined"
3794 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3798 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3802 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
3803 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
3804 dnl distinguish OS X from pure Darwin.
3805 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3808 gnu-linux | gnu-kfreebsd )
3810 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3816 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3822 AC_DEFINE(USG5_4, [])
3823 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3829 AC_DEFINE(USG5_4, [])
3830 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3836 AC_DEFINE(USG5_4, [])
3840 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3843 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3844 emacs_cv_usable_FIONREAD=no
3849 [AC_LANG_PROGRAM([[#include <sys/types.h>
3850 #include <sys/ioctl.h>
3852 # include <sys/filio.h>
3855 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3856 [emacs_cv_usable_FIONREAD=yes],
3857 [emacs_cv_usable_FIONREAD=no])
3860 if test $emacs_cv_usable_FIONREAD = yes; then
3861 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3863 if test $emacs_broken_SIGIO = no; then
3864 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3866 [AC_LANG_PROGRAM([[#include <fcntl.h>
3869 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3870 [emacs_cv_usable_SIGIO=yes],
3871 [emacs_cv_usable_SIGIO=no])],
3872 [emacs_cv_usable_SIGIO=yes],
3873 [emacs_cv_usable_SIGIO=no])
3874 if test $emacs_cv_usable_SIGIO = yes; then
3875 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3882 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3883 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3884 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3885 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3887 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3888 G_SLICE environment variable to "always-malloc" at startup, if
3893 dnl It works to open the pty's tty in the parent (Emacs), then
3894 dnl close and reopen it in the child.
3895 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3896 works to open a pty's tty in the parent process, then close and
3897 reopen it in the child.])
3901 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3902 use VSUSP instead of VSWTCH.])
3906 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
3911 # Set up the CFLAGS for real compilation, so we can substitute it.
3912 CFLAGS="$REAL_CFLAGS"
3913 CPPFLAGS="$REAL_CPPFLAGS"
3915 ## Hack to detect a buggy GCC version.
3916 if test "x$GCC" = xyes \
3917 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
3918 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
3919 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
3920 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
3923 version=$PACKAGE_VERSION
3925 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
3926 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
3927 [Short copyright string for this version of Emacs.])
3930 ### Specify what sort of things we'll be editing into Makefile and config.h.
3931 ### Use configuration here uncanonicalized to avoid exceeding size limits.
3933 AC_SUBST(configuration)
3938 AC_SUBST(exec_prefix)
3941 AC_SUBST(sharedstatedir)
3942 AC_SUBST(libexecdir)
3947 AC_SUBST(standardlisppath)
3948 AC_SUBST(locallisppath)
3950 AC_SUBST(x_default_search_path)
3952 AC_SUBST(archlibdir)
3957 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
3958 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
3959 ## end of LIBX_BASE, but nothing ever set it.
3960 AC_SUBST(LD_SWITCH_X_SITE)
3961 AC_SUBST(C_SWITCH_X_SITE)
3962 AC_SUBST(GNUSTEP_CFLAGS)
3964 ## Used in lwlib/Makefile.in.
3965 AC_SUBST(X_TOOLKIT_TYPE)
3967 AC_SUBST(ns_appbindir)
3968 AC_SUBST(ns_appresdir)
3970 AC_SUBST(GNU_OBJC_CFLAGS)
3971 AC_SUBST(OTHER_FILES)
3973 if test -n "${term_header}"; then
3974 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
3975 [Define to the header for the built-in window system.])
3978 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
3979 [Define to the canonical Emacs configuration name.])
3980 dnl Replace any embedded " characters (bug#13274).
3981 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g"`
3982 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
3983 [Define to the options passed to configure.])
3984 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
3985 define this to include extra configuration information.])
3990 if test "${HAVE_X_WINDOWS}" = "yes" ; then
3991 AC_DEFINE(HAVE_X_WINDOWS, 1,
3992 [Define to 1 if you want to use the X window system.])
3994 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
3996 if test "$HAVE_XFT" = "yes"; then
3997 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
3998 elif test "$HAVE_FREETYPE" = "yes"; then
3999 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4009 if test "${USE_X_TOOLKIT}" != "none" ; then
4011 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4012 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4013 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4014 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4015 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4019 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4020 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4024 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4025 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4026 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4030 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4031 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4034 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4037 AC_SUBST(WIDGET_OBJ)
4040 case "$USE_X_TOOLKIT" in
4041 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4042 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4043 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4045 AC_SUBST(TOOLKIT_LIBW)
4047 if test "$USE_X_TOOLKIT" = "none"; then
4048 LIBXT_OTHER="\$(LIBXSM)"
4049 OLDXMENU_TARGET="really-oldXMenu"
4051 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4052 OLDXMENU_TARGET="really-lwlib"
4054 AC_SUBST(LIBXT_OTHER)
4056 ## The X Menu stuff is present in the X10 distribution, but missing
4057 ## from X11. If we have X10, just use the installed library;
4058 ## otherwise, use our own copy.
4059 if test "${HAVE_X11}" = "yes" ; then
4060 AC_DEFINE(HAVE_X11, 1,
4061 [Define to 1 if you want to use version 11 of X windows.
4062 Otherwise, Emacs expects to use version 10.])
4064 if test "$USE_X_TOOLKIT" = "none"; then
4065 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4067 OLDXMENU="\${lwlibdir}/liblw.a"
4069 LIBXMENU="\$(OLDXMENU)"
4070 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4071 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4073 ## For a syntactically valid Makefile; not actually used for anything.
4074 ## See comments in src/Makefile.in.
4076 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4077 if test "${HAVE_X_WINDOWS}" = "yes"; then
4086 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4093 AC_SUBST(OLDXMENU_TARGET)
4096 AC_SUBST(LIBX_OTHER)
4097 AC_SUBST(OLDXMENU_DEPS)
4099 if test "${HAVE_MENUS}" = "yes" ; then
4100 AC_DEFINE(HAVE_MENUS, 1,
4101 [Define to 1 if you have mouse menus.
4102 (This is automatic if you use X, but the option to specify it remains.)
4103 It is also defined with other window systems that support xmenu.c.])
4106 if test "${GNU_MALLOC}" = "yes" ; then
4107 AC_DEFINE(GNU_MALLOC, 1,
4108 [Define to 1 if you want to use the GNU memory allocator.])
4112 if test "${REL_ALLOC}" = "yes" ; then
4113 AC_DEFINE(REL_ALLOC, 1,
4114 [Define REL_ALLOC if you want to use the relocating allocator for
4117 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4119 AC_SUBST(RALLOC_OBJ)
4121 if test "$opsys" = "cygwin"; then
4122 CYGWIN_OBJ="sheap.o cygw32.o"
4123 ## Cygwin differs because of its unexec().
4125 POST_ALLOC_OBJ=lastfile.o
4128 PRE_ALLOC_OBJ=lastfile.o
4131 AC_SUBST(CYGWIN_OBJ)
4132 AC_SUBST(PRE_ALLOC_OBJ)
4133 AC_SUBST(POST_ALLOC_OBJ)
4135 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4136 # it temporarily reverts them to their pre-pkg-config values,
4137 # because gnulib needs to work with both src (which uses the
4138 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4139 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4140 # and it therefore needs to run in an environment where LIBS does not
4141 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4142 # for some package unrelated to lib-src.
4145 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4146 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4147 gl_ASSERT_NO_GNULIB_POSIXCHECK
4148 gl_ASSERT_NO_GNULIB_TESTS
4154 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4157 ## The -headerpad option tells ld (see man page) to leave room at the
4158 ## end of the header for adding load commands. Needed for dumping.
4159 ## 0x690 is the total size of 30 segment load commands (at 56
4160 ## each); under Cocoa 31 commands are required.
4161 if test "$HAVE_NS" = "yes"; then
4162 libs_nsgui="-framework AppKit"
4168 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4170 ## This is here because src/Makefile.in did some extra fiddling around
4171 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4172 ## LD_SWITCH_SYSTEM_TEMACS instead,
4173 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4174 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4177 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4178 ## find X at run-time.
4179 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4180 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4181 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4182 ## had different values in configure (in ac_link) and src/Makefile.in.
4183 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4184 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4186 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4189 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4191 ## Common for all window systems
4192 if test "$window_system" != "none"; then
4193 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4194 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4197 AC_SUBST(WINDOW_SYSTEM_OBJ)
4199 AH_TOP([/* GNU Emacs site configuration template file.
4201 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4202 Free Software Foundation, Inc.
4204 This file is part of GNU Emacs.
4206 GNU Emacs is free software: you can redistribute it and/or modify
4207 it under the terms of the GNU General Public License as published by
4208 the Free Software Foundation, either version 3 of the License, or
4209 (at your option) any later version.
4211 GNU Emacs is distributed in the hope that it will be useful,
4212 but WITHOUT ANY WARRANTY; without even the implied warranty of
4213 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4214 GNU General Public License for more details.
4216 You should have received a copy of the GNU General Public License
4217 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4220 /* No code in Emacs #includes config.h twice, but some bits of code
4221 intended to work with other packages as well (like gmalloc.c)
4222 think they can include it as many times as they like. */
4223 #ifndef EMACS_CONFIG_H
4224 #define EMACS_CONFIG_H
4227 AH_BOTTOM([#include <conf_post.h>
4229 #endif /* EMACS_CONFIG_H */
4238 #### Report on what we decided to do.
4239 #### Report GTK as a toolkit, even if it doesn't use Xt.
4240 #### It makes printing result more understandable as using GTK sets
4241 #### toolkit_scroll_bars to yes by default.
4242 if test "${HAVE_GTK}" = "yes"; then
4243 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4247 Configured for \`${canonical}'.
4249 Where should the build process find the source code? ${srcdir}
4250 What compiler should emacs be built with? ${CC} ${CFLAGS}
4251 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4252 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4253 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4254 What window system should Emacs use? ${window_system}
4255 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4257 if test -n "${x_includes}"; then
4258 echo " Where do we find X Windows header files? ${x_includes}"
4260 echo " Where do we find X Windows header files? Standard dirs"
4262 if test -n "${x_libraries}"; then
4263 echo " Where do we find X Windows libraries? ${x_libraries}"
4265 echo " Where do we find X Windows libraries? Standard dirs"
4268 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4269 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4270 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4271 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4272 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4273 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4274 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4275 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4277 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4278 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4279 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4280 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4281 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4282 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4283 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4285 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4286 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4287 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4288 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4290 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4293 if test -n "${EMACSDATA}"; then
4294 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4296 if test -n "${EMACSDOC}"; then
4297 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4302 if test "$HAVE_NS" = "yes"; then
4304 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4305 The installed application will go to nextstep/Emacs.app and can be
4306 run or moved from there."
4307 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4308 echo "The application will be fully self-contained."
4310 echo "The lisp resources for the application will be installed under ${prefix}.
4311 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4312 to run if these resources are not installed."
4317 if test "${opsys}" = "cygwin"; then
4319 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4325 # Remove any trailing slashes in these variables.
4326 [test "${prefix}" != NONE &&
4327 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4328 test "${exec_prefix}" != NONE &&
4329 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4331 if test "$HAVE_NS" = "yes"; then
4332 if test "$NS_IMPL_GNUSTEP" = yes; then
4333 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4334 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4336 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4337 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4341 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4342 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4343 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4344 dnl (else you get "no `Makefile.am' found for any configure output").
4345 dnl This will work, but you get a config.status that is not quite right
4346 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4347 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4348 dnl it seems better to just live with the duplication.
4349 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4351 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4352 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4353 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4354 leim/Makefile nextstep/Makefile])
4356 dnl test/ is not present in release tarfiles.
4357 opt_makefile=test/automated/Makefile
4359 if test -f "$srcdir/$opt_makefile.in"; then
4360 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4361 dnl Again, it's best not to use a variable. Though you can add
4362 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4363 AC_CONFIG_FILES([test/automated/Makefile])
4367 dnl admin/ may or may not be present.
4368 opt_makefile=admin/unidata/Makefile
4370 if test -f "$srcdir/$opt_makefile.in"; then
4371 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4372 AC_CONFIG_FILES([admin/unidata/Makefile])
4376 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4378 AC_SUBST(SUBDIR_MAKEFILES_IN)
4380 dnl Make the necessary directories, if they don't exist.
4381 AC_CONFIG_COMMANDS([mkdirs], [
4382 for dir in etc lisp ; do
4383 test -d ${dir} || mkdir ${dir}
4387 dnl You might wonder (I did) why epaths.h is generated by running make,
4388 dnl rather than just letting configure generate it from epaths.in.
4389 dnl One reason is that the various paths are not fully expanded (see above);
4390 dnl eg gamedir=${prefix}/var/games/emacs.
4391 dnl Secondly, the GNU Coding standards require that one should be able
4392 dnl to run `make prefix=/some/where/else' and override the values set
4393 dnl by configure. This also explains the `move-if-change' test and
4394 dnl the use of force in the `epaths-force' rule in Makefile.in.
4395 AC_CONFIG_COMMANDS([epaths], [
4396 echo creating src/epaths.h
4397 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4398 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4400 AC_CONFIG_COMMANDS([gdbinit], [
4401 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4402 echo creating src/.gdbinit
4403 echo "source $srcdir/src/.gdbinit" > src/.gdbinit