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 in a Cygwin build])
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).
380 [[\\/]]* | ?:[[\\/]]*) ;;
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 ;;
551 # MinGW overrides and adds some system headers in nt/inc.
552 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
554 *-sysv4.2uw* ) opsys=unixware ;;
555 *-sysv5uw* ) opsys=unixware ;;
556 *-sysv5OpenUNIX* ) opsys=unixware ;;
557 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
566 ### If the code above didn't choose an operating system, just choose
567 ### an operating system based on the configuration name. You really
568 ### only want to use this when you have no idea what the right
569 ### operating system is; if you know what operating systems a machine
570 ### runs, it's cleaner to make it explicit in the case statement
572 if test x"${opsys}" = x; then
573 case "${canonical}" in
574 *-gnu* ) opsys=gnu ;;
584 if test $unported = yes; then
585 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
586 Check `etc/MACHINES' for recognized configuration names.])
590 #### Choose a compiler.
592 dnl Sets GCC=yes if using gcc.
596 if test x$GCC = xyes; then
597 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
599 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
602 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
603 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
604 dnl that clash with MinGW.
605 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
607 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
608 # as we don't use them.
609 AC_DEFUN([gl_FCNTL_O_FLAGS])
610 # Avoid gnulib's threadlib module, as we do threads our own way.
611 AC_DEFUN([gl_THREADLIB])
613 # Initialize gnulib right after choosing the compiler.
614 dnl Amongst other things, this sets AR and ARFLAGS.
617 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
618 # if -g3 works and the user does not specify CFLAGS.
619 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
620 if test "$ac_test_CFLAGS" != set; then
623 emacs_g3_CFLAGS='-g3';;
625 emacs_g3_CFLAGS='-g3 -O2';;
629 if test -n "$emacs_g3_CFLAGS"; then
630 emacs_save_CFLAGS=$CFLAGS
631 CFLAGS=$emacs_g3_CFLAGS
632 if test $opsys = mingw32; then
633 CFLAGS="$CFLAGS -gdwarf-2"
635 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
636 [emacs_cv_prog_cc_g3],
637 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
638 [emacs_cv_prog_cc_g3=yes],
639 [emacs_cv_prog_cc_g3=no])])
640 if test $emacs_cv_prog_cc_g3 = yes; then
641 CFLAGS=$emacs_g3_CFLAGS
643 CFLAGS=$emacs_save_CFLAGS
648 AC_ARG_ENABLE([gcc-warnings],
649 [AS_HELP_STRING([--enable-gcc-warnings],
650 [turn on lots of GCC warnings/errors. This is intended for
651 developers, and may generate false alarms when used
652 with older or non-GNU development tools.])],
655 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
657 gl_gcc_warnings=$enableval],
661 AC_ARG_ENABLE(link-time-optimization,
662 [AS_HELP_STRING([--enable-link-time-optimization],
663 [build emacs with link-time optimization.
664 This is supported only for GCC since 4.5.0.])],
665 if test "${enableval}" != "no"; then
666 AC_MSG_CHECKING([whether link-time optimization is supported])
668 if test x$GCC = xyes; then
669 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
670 if test x$CPUS != x; then
676 CFLAGS="$CFLAGS $LTO"
677 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
678 [ac_lto_supported=yes], [ac_lto_supported=no])
681 AC_MSG_RESULT([$ac_lto_supported])
682 if test "$ac_lto_supported" = "yes"; then
683 CFLAGS="$CFLAGS $LTO"
687 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
688 # ------------------------------------------------
689 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
690 # Otherwise, run RUN-IF-NOT-FOUND.
691 AC_DEFUN([gl_GCC_VERSION_IFELSE],
695 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
698 # error "your version of gcc is older than $1.$2"
705 # When compiling with GCC, prefer -isystem to -I when including system
706 # include files, to avoid generating useless diagnostics for the files.
707 if test "$gl_gcc_warnings" != yes; then
712 # This, $nw, is the list of warnings we disable.
715 case $with_x_toolkit in
716 lucid | athena | motif)
717 # Old toolkits mishandle 'const'.
718 nw="$nw -Wwrite-strings"
721 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
724 AC_SUBST([WERROR_CFLAGS])
726 nw="$nw -Waggregate-return" # anachronistic
727 nw="$nw -Wlong-long" # C90 is anachronistic
728 nw="$nw -Wc++-compat" # We don't care about C++ compilers
729 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
730 nw="$nw -Wtraditional" # Warns on #elif which we use often
731 nw="$nw -Wcast-qual" # Too many warnings for now
732 nw="$nw -Wconversion" # Too many warnings for now
733 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
734 nw="$nw -Wsign-conversion" # Too many warnings for now
735 nw="$nw -Woverlength-strings" # Not a problem these days
736 nw="$nw -Wtraditional-conversion" # Too many warnings for now
737 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
738 nw="$nw -Wpadded" # Our structs are not padded
739 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
740 nw="$nw -Wlogical-op" # any use of fwrite provokes this
741 nw="$nw -Wformat-nonliteral" # we do this a lot
742 nw="$nw -Wvla" # warnings in gettext.h
743 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
744 nw="$nw -Wswitch-enum" # Too many warnings for now
745 nw="$nw -Wswitch-default" # Too many warnings for now
746 nw="$nw -Wfloat-equal" # warns about high-quality code
747 nw="$nw -Winline" # OK to ignore 'inline'
748 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
749 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
750 # signed overflow has undefined behavior
751 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
752 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
754 # Emacs doesn't care about shadowing; see
755 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
758 # Emacs's use of alloca inhibits protecting the stack.
759 nw="$nw -Wstack-protector"
761 # The following line should be removable at some point.
762 nw="$nw -Wsuggest-attribute=pure"
764 gl_MANYWARN_ALL_GCC([ws])
765 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
769 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
770 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
771 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
772 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
773 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
774 gl_WARN_ADD([-Wno-format-nonliteral])
776 # In spite of excluding -Wlogical-op above, it is enabled, as of
777 # gcc 4.5.0 20090517.
778 gl_WARN_ADD([-Wno-logical-op])
780 gl_WARN_ADD([-fdiagnostics-show-option])
781 gl_WARN_ADD([-funit-at-a-time])
783 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
784 AH_VERBATIM([FORTIFY_SOURCE],
785 [/* Enable compile-time and run-time bounds-checking, and some warnings,
786 without upsetting glibc 2.15+. */
787 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
788 # define _FORTIFY_SOURCE 2
791 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
793 # We use a slightly smaller set of warning options for lib/.
794 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
796 nw="$nw -Wunused-macros"
798 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
799 AC_SUBST([GNULIB_WARN_CFLAGS])
804 dnl Some other nice autoconf tests.
805 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
808 dnl if test "x$RANLIB" = x; then
813 AC_PATH_PROG(INSTALL_INFO, install-info, :,
814 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
815 dnl Don't use GZIP, which is used by gzip for additional parameters.
816 AC_PATH_PROG(GZIP_PROG, gzip)
818 if test $opsys = gnu-linux; then
819 AC_PATH_PROG(PAXCTL, paxctl,,
820 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
821 if test "X$PAXCTL" != X; then
822 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
823 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
824 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
825 else AC_MSG_RESULT(no); PAXCTL=""; fi])
829 ## Need makeinfo >= 4.7 (?) to build the manuals.
830 AC_PATH_PROG(MAKEINFO, makeinfo, no)
831 dnl By this stage, configure has already checked for egrep and set EGREP,
832 dnl or exited with an error if no egrep was found.
833 if test "$MAKEINFO" != "no"; then
835 $MAKEINFO --version 2> /dev/null |
836 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
842 ## Makeinfo is unusual. For a released Emacs, the manuals are
843 ## pre-built, and not deleted by the normal clean rules. makeinfo is
844 ## therefore in the category of "special tools" not normally required, which
845 ## configure does not have to check for (eg autoconf itself).
846 ## In a Bazaar checkout on the other hand, the manuals are not included.
847 ## So makeinfo is a requirement to build from Bazaar, and configure
848 ## should test for it as it does for any other build requirement.
849 ## We use the presence of $srcdir/info/emacs to distinguish a release,
850 ## with pre-built manuals, from a Bazaar checkout.
853 if test "$MAKEINFO" = "no"; then
855 if test "x${with_makeinfo}" = "xno"; then
857 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
858 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
859 source tree does not seem to have pre-built manuals in the `info' directory.
860 Either install a suitable version of makeinfo, or re-run configure
861 with the `--without-makeinfo' option to build without the manuals.] )
864 AC_SUBST(HAVE_MAKEINFO)
866 dnl Just so that there is only a single place we need to edit.
872 dnl Add our options to ac_link now, after it is set up.
874 if test x$GCC = xyes; then
875 test "x$GCC_LINK_TEST_OPTIONS" != x && \
876 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
878 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
879 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
882 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
883 dnl If we can link with the flag, it shouldn't do any harm anyhow.
884 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
885 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
886 dnl if not built to support GNU ld.
888 late_LDFLAGS=$LDFLAGS
889 if test x$GCC = xyes; then
890 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
892 LDFLAGS="$LDFLAGS -znocombreloc"
895 AC_MSG_CHECKING([for -znocombreloc])
896 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
897 [AC_MSG_RESULT(yes)],
898 LDFLAGS=$late_LDFLAGS
902 dnl The function dump-emacs will not be defined and temacs will do
903 dnl (load "loadup") automatically unless told otherwise.
904 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
906 your-opsys-here) CANNOT_DUMP=yes ;;
909 test "$CANNOT_DUMP" = "yes" && \
910 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
912 AC_SUBST(CANNOT_DUMP)
917 # MSDOS uses unexcoff.o
925 UNEXEC_OBJ=unexmacosx.o
928 UNEXEC_OBJ=unexhp9k800.o
934 # Use the Solaris dldump() function, called from unexsol.c, to dump
935 # emacs, instead of the generic ELF dump code found in unexelf.c.
936 # The resulting binary has a complete symbol table, and is better
937 # for debugging and other observability tools (debuggers, pstack, etc).
939 # If you encounter a problem using dldump(), please consider sending
940 # a message to the OpenSolaris tools-linking mailing list:
941 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
943 # It is likely that dldump() works with older Solaris too, but this has
944 # not been tested, so for now this change is for Solaris 10 or newer.
952 ## Let `ld' find image libs and similar things in /usr/local/lib.
953 ## The system compiler, GCC, has apparently been modified to not
954 ## look there, contrary to what a stock GCC would do.
955 ### It's not our place to do this. See bug#10313#17.
956 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
961 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
962 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
966 ### It's not our place to do this. See bug#10313#17.
967 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
972 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
973 ## otherwise Emacs dumps core on elf systems.
974 LD_SWITCH_SYSTEM="-Z"
977 AC_SUBST(LD_SWITCH_SYSTEM)
979 ac_link="$ac_link $LD_SWITCH_SYSTEM"
981 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
982 ## which has not been defined yet. When this was handled with cpp,
983 ## it was expanded to null when configure sourced the s/*.h file.
984 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
985 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
986 ## (or somesuch), but because it is supposed to go at the _front_
987 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
988 ## Compare with the gnu-linux case below, which added to the end
989 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
990 ## LD_SWITCH_SYSTEM_TEMACS.
993 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1000 AC_CHECK_DECL([__ELF__])
1001 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1002 ## With ELF, make sure that all common symbols get allocated to in the
1003 ## data section. Otherwise, the dump of temacs may miss variables in
1004 ## the shared library that have been initialized. For example, with
1005 ## GNU libc, __malloc_initialized would normally be resolved to the
1006 ## shared library's .bss section, which is fatal.
1007 if test "x$GCC" = "xyes"; then
1008 C_SWITCH_MACHINE="-fno-common"
1010 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1013 UNEXEC_OBJ=unexalpha.o
1017 AC_SUBST(C_SWITCH_MACHINE)
1019 AC_SUBST(UNEXEC_OBJ)
1022 ## Some programs in src produce warnings saying certain subprograms
1023 ## are too complex and need a MAXMEM value greater than 2000 for
1024 ## additional optimization. --nils@exp-math.uni-essen.de
1025 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1026 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1027 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1028 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1029 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1030 AC_SUBST(C_SWITCH_SYSTEM)
1037 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1038 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1040 freebsd) LIBS_SYSTEM="-lutil" ;;
1042 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1044 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1046 ## Motif needs -lgen.
1047 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1049 mingw32) LIBS_SYSTEM="-lcomctl32"
1050 LIB_WSOCK32="$LIB_WSOCK32 -lwsock32"
1051 NTLIB="ntlib.$ac_objext"
1055 AC_SUBST(LIBS_SYSTEM)
1056 AC_SUBST(LIB_WSOCK32)
1059 ### Make sure subsequent tests use flags consistent with the build flags.
1061 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1062 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1064 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1067 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1068 AC_DEFUN([AC_TYPE_SIZE_T])
1069 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1070 AC_DEFUN([AC_TYPE_UID_T])
1074 dnl Current possibilities handled by sed (aix4-2 -> aix,
1075 dnl gnu-linux -> gnu/linux, etc.):
1076 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1077 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1078 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1085 ## Adding -lm confuses the dynamic linker, so omit it.
1089 SYSTEM_TYPE=berkeley-unix
1091 gnu-linux | gnu-kfreebsd )
1093 hpux10-20 | hpux11 )
1097 SYSTEM_TYPE=windows-nt
1099 dnl NB this may be adjusted below.
1101 SYSTEM_TYPE=berkeley-unix
1105 SYSTEM_TYPE=usg-unix-v
1111 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1112 [The type of system you are compiling for; sets `system-type'.])
1115 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1116 pre_PKG_CONFIG_LIBS=$LIBS
1118 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1120 dnl This function definition taken from Gnome 2.0
1121 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1122 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1123 dnl also defines GSTUFF_PKG_ERRORS on error
1124 AC_DEFUN([PKG_CHECK_MODULES], [
1127 if test "$PKG_CONFIG" = "no" ; then
1128 ifelse([$4], , [AC_MSG_ERROR([
1129 *** 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.])], [$4])
1131 PKG_CONFIG_MIN_VERSION=0.9.0
1132 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1133 AC_MSG_CHECKING(for $2)
1135 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1136 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1137 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1144 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1145 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1146 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1152 ## If we have a custom action on failure, don't print errors, but
1153 ## do set a variable so people can do so. Do it in a subshell
1154 ## to capture any diagnostics in invoking pkg-config.
1155 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1156 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1162 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1163 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1167 if test $succeeded = yes; then
1168 ifelse([$3], , :, [$3])
1170 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])
1174 if test "${with_sound}" != "no"; then
1175 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1176 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h,
1177 have_sound_header=yes, [], [
1179 #define WIN32_LEAN_AND_MEAN
1180 #include <windows.h>
1183 # Emulation library used on NetBSD.
1184 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1188 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1189 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1190 if test $HAVE_ALSA = yes; then
1191 SAVE_CFLAGS="$CFLAGS"
1193 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1194 LIBS="$ALSA_LIBS $LIBS"
1195 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1196 emacs_alsa_normal=yes,
1197 emacs_alsa_normal=no)
1198 if test "$emacs_alsa_normal" != yes; then
1199 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1200 [[snd_lib_error_set_handler (0);]])],
1201 emacs_alsa_subdir=yes,
1202 emacs_alsa_subdir=no)
1203 if test "$emacs_alsa_subdir" != yes; then
1204 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1206 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1209 CFLAGS="$SAVE_CFLAGS"
1211 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1212 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1213 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1216 dnl Define HAVE_SOUND if we have sound support. We know it works and
1217 dnl compiles only on the specified platforms. For others, it
1218 dnl probably doesn't make sense to try.
1219 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1221 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1222 gnu-linux|freebsd|netbsd)
1223 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1226 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1231 AC_SUBST(CFLAGS_SOUND)
1234 dnl checks for header files
1235 AC_CHECK_HEADERS_ONCE(
1236 linux/version.h sys/systeminfo.h
1239 sys/utsname.h pwd.h utmp.h util.h)
1241 AC_MSG_CHECKING(if personality LINUX32 can be set)
1242 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1243 emacs_cv_personality_linux32=yes,
1244 emacs_cv_personality_linux32=no)
1245 AC_MSG_RESULT($emacs_cv_personality_linux32)
1247 if test $emacs_cv_personality_linux32 = yes; then
1248 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1249 [Define to 1 if personality LINUX32 can be set.])
1252 dnl On Solaris 8 there's a compilation warning for term.h because
1253 dnl it doesn't define `bool'.
1254 AC_CHECK_HEADERS(term.h, , , -)
1256 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1258 if test $ac_cv_have_decl_sys_siglist != yes; then
1259 # For Tru64, at least:
1260 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1262 if test $ac_cv_have_decl___sys_siglist = yes; then
1263 AC_DEFINE(sys_siglist, __sys_siglist,
1264 [Define to any substitute for sys_siglist.])
1269 dnl Check for speed_t typedef.
1270 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1271 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1272 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1273 if test $emacs_cv_speed_t = yes; then
1274 AC_DEFINE(HAVE_SPEED_T, 1,
1275 [Define to 1 if `speed_t' is declared by <termios.h>.])
1278 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1279 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1280 #if HAVE_SYS_SOCKET_H
1281 #include <sys/socket.h>
1283 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1284 #if HAVE_SYS_SOCKET_H
1285 #include <sys/socket.h>
1287 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1288 #if HAVE_SYS_SOCKET_H
1289 #include <sys/socket.h>
1292 dnl checks for structure members
1293 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1294 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1295 struct ifreq.ifr_addr,
1296 struct ifreq.ifr_addr.sa_len], , ,
1297 [AC_INCLUDES_DEFAULT
1298 #if HAVE_SYS_SOCKET_H
1299 #include <sys/socket.h>
1305 dnl Check for endianness.
1306 dnl AC_C_BIGENDIAN is done by gnulib.
1308 dnl check for Make feature
1309 dnl AC_PROG_MAKE_SET is done by Automake.
1314 dnl check for GNU Make if we have GCC and autodepend is on.
1315 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1316 AC_MSG_CHECKING([whether we are using GNU Make])
1318 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1319 if test "x$testval" != x; then
1322 ac_enable_autodepend=no
1324 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1325 if test $HAVE_GNU_MAKE = yes; then
1326 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1327 SAVE_CFLAGS="$CFLAGS"
1328 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1329 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1330 CFLAGS="$SAVE_CFLAGS"
1331 test -f deps.d || ac_enable_autodepend=no
1333 AC_MSG_RESULT([$ac_enable_autodepend])
1335 if test $ac_enable_autodepend = yes; then
1336 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1337 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1338 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1339 deps_frag=autodeps.mk
1342 deps_frag=$srcdir/src/$deps_frag
1345 AC_SUBST_FILE(deps_frag)
1348 lisp_frag=$srcdir/src/lisp.mk
1349 AC_SUBST_FILE(lisp_frag)
1352 dnl checks for operating system services
1353 AC_SYS_LONG_FILE_NAMES
1355 #### Choose a window system.
1357 ## We leave window_system equal to none if
1358 ## we end up building without one. Any new window system should
1359 ## set window_system to an appropriate value and add objects to
1360 ## window-system-specific substs.
1364 if test "$no_x" != yes; then
1368 LD_SWITCH_X_SITE_RPATH=
1369 if test "${x_libraries}" != NONE; then
1370 if test -n "${x_libraries}"; then
1371 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1372 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1374 x_default_search_path=""
1375 x_search_path=${x_libraries}
1376 if test -z "${x_search_path}"; then
1377 x_search_path=/usr/lib
1379 for x_library in `echo ${x_search_path}: | \
1380 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1382 ${x_library}/X11/%L/%T/%N%C%S:\
1383 ${x_library}/X11/%l/%T/%N%C%S:\
1384 ${x_library}/X11/%T/%N%C%S:\
1385 ${x_library}/X11/%L/%T/%N%S:\
1386 ${x_library}/X11/%l/%T/%N%S:\
1387 ${x_library}/X11/%T/%N%S"
1388 if test x"${x_default_search_path}" = x; then
1389 x_default_search_path=${x_search_path}
1391 x_default_search_path="${x_search_path}:${x_default_search_path}"
1395 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1397 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1398 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1401 if test x"${x_includes}" = x; then
1402 bitmapdir=/usr/include/X11/bitmaps
1404 # accumulate include directories that have X11 bitmap subdirectories
1406 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1407 if test -d "${bmd}/X11/bitmaps"; then
1408 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1410 if test -d "${bmd}/bitmaps"; then
1411 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1414 if test ${bmd_acc} != "dummyval"; then
1415 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1422 tmp_CPPFLAGS="$CPPFLAGS"
1423 tmp_CFLAGS="$CFLAGS"
1424 CPPFLAGS="$CPPFLAGS -x objective-c"
1425 CFLAGS="$CFLAGS -x objective-c"
1428 if test "${with_ns}" != no; then
1429 if test "${opsys}" = darwin; then
1431 ns_appdir=`pwd`/nextstep/Emacs.app
1432 ns_appbindir=${ns_appdir}/Contents/MacOS
1433 ns_appresdir=${ns_appdir}/Contents/Resources
1434 ns_appsrc=Cocoa/Emacs.base
1435 elif test -f $GNUSTEP_CONFIG_FILE; then
1437 ns_appdir=`pwd`/nextstep/Emacs.app
1438 ns_appbindir=${ns_appdir}
1439 ns_appresdir=${ns_appdir}/Resources
1440 ns_appsrc=GNUstep/Emacs.base
1441 dnl FIXME sourcing this several times in subshells seems inefficient.
1442 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1443 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1444 dnl I seemed to need these as well with GNUstep-startup 0.25.
1445 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1446 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1447 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1448 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1449 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1450 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1451 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1452 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1453 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1454 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1455 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1456 dnl If they had chosen to either define it or not, we could have
1457 dnl just used AC_CHECK_DECL here.
1458 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1459 emacs_cv_objc_exceptions,
1460 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1461 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1465 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1466 if test $emacs_cv_objc_exceptions = yes; then
1467 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1468 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1469 [Define if GNUstep uses ObjC exceptions.])
1470 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1474 dnl This is only used while we test the NS headers, it gets reset below.
1475 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1477 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1478 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1479 files are missing or cannot be compiled.])])
1481 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1483 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1484 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1487 #error "OSX 10.4 or newer required"
1491 ns_osx_have_104=yes,
1493 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1495 ns_have_nsinteger=yes,
1496 ns_have_nsinteger=no)
1497 if test $ns_osx_have_104 = no; then
1498 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1500 if test $ns_have_nsinteger = yes; then
1501 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1505 AC_SUBST(LIBS_GNUSTEP)
1507 INSTALL_ARCH_INDEP_EXTRA=install-etc
1508 ns_self_contained=no
1511 if test "${HAVE_NS}" = yes; then
1512 if test "$with_toolkit_scroll_bars" = "no"; then
1513 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1516 window_system=nextstep
1517 # set up packaging dirs
1518 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1519 ns_self_contained=yes
1520 prefix=${ns_appresdir}
1521 exec_prefix=${ns_appbindir}
1522 dnl This one isn't really used, only archlibdir is.
1523 libexecdir="\${ns_appbindir}/libexec"
1524 archlibdir="\${ns_appbindir}/libexec"
1525 docdir="\${ns_appresdir}/etc"
1526 etcdir="\${ns_appresdir}/etc"
1527 dnl FIXME maybe set datarootdir instead.
1528 dnl That would also get applications, icons, man.
1529 infodir="\${ns_appresdir}/info"
1530 mandir="\${ns_appresdir}/man"
1531 lispdir="\${ns_appresdir}/lisp"
1532 leimdir="\${ns_appresdir}/leim"
1533 INSTALL_ARCH_INDEP_EXTRA=
1535 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1537 CFLAGS="$tmp_CFLAGS"
1538 CPPFLAGS="$tmp_CPPFLAGS"
1539 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1540 AC_SUBST(ns_self_contained)
1542 AC_SUBST(NS_OBJC_OBJ)
1549 if test "${with_w32}" != no; then
1550 if test "${opsys}" != "cygwin"; then
1551 if test "${opsys}" != "mingw32"; then
1552 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1555 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1556 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1557 cannot be found.])])
1559 if test "${opsys}" = "mingw32"; then
1560 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1561 [AC_MSG_ERROR([The windows.h header file is required,
1562 but cannot be found.])])
1563 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1564 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1565 #include <windows.h>
1566 #include <usp10.h>]],
1567 [[void test(PIMAGE_NT_HEADERS pHeader)
1568 {PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader);}]])],
1569 emacs_cv_w32api=yes, emacs_cv_w32api=no)
1570 AC_MSG_RESULT($emacs_cv_w32api)
1571 if test "${emacs_cv_w32api}" = "no"; then
1572 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1576 if test "${HAVE_W32}" = "yes"; then
1577 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1578 AC_CHECK_TOOL(WINDRES, [windres],
1579 [AC_MSG_ERROR([No resource compiler found.])])
1580 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1581 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1582 if test "${opsys}" = "cygwin"; then
1583 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1584 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1586 # Tell the linker that emacs.res is an object (which we compile from
1587 # the rc file), not a linker script.
1588 W32_RES_LINK="-Wl,-bpe-i386 -Wl,emacs.res"
1590 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1591 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1592 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lusp10"
1598 AC_SUBST(W32_RES_LINK)
1600 if test "${HAVE_W32}" = "yes"; then
1605 ## $window_system is now set to the window system we will
1613 case "${window_system}" in
1618 case "${with_x_toolkit}" in
1619 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1620 motif ) USE_X_TOOLKIT=MOTIF ;;
1622 term_header=gtkutil.h
1623 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1624 dnl USE_X_TOOLKIT is set.
1625 USE_X_TOOLKIT=none ;;
1626 gtk2 ) with_gtk2=yes
1627 term_header=gtkutil.h
1628 USE_X_TOOLKIT=none ;;
1629 gtk3 ) with_gtk3=yes
1630 term_header=gtkutil.h
1631 USE_X_TOOLKIT=none ;;
1632 no ) USE_X_TOOLKIT=none ;;
1633 dnl If user did not say whether to use a toolkit, make this decision later:
1634 dnl use the toolkit if we have gtk, or X11R5 or newer.
1635 * ) USE_X_TOOLKIT=maybe ;;
1639 term_header=nsterm.h
1642 term_header=w32term.h
1646 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1647 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1648 if test "$HAVE_XSERVER" = true ||
1649 test -n "$DISPLAY" ||
1650 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1651 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1652 were found. You should install the relevant development files for X
1653 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1654 sure you have development files for image handling, i.e.
1655 tiff, gif, jpeg, png and xpm.
1656 If you are sure you want Emacs compiled without X window support, pass
1662 ### If we're using X11, we should use the X menu package.
1665 yes ) HAVE_MENUS=yes ;;
1668 # Does the opsystem file prohibit the use of the GNU malloc?
1669 # Assume not, until told otherwise.
1673 [whether malloc is Doug Lea style],
1674 [emacs_cv_var_doug_lea_malloc],
1677 [[#include <malloc.h>
1678 static void hook (void) {}]],
1679 [[malloc_set_state (malloc_get_state ());
1680 __after_morecore_hook = hook;
1681 __malloc_initialize_hook = hook;]])],
1682 [emacs_cv_var_doug_lea_malloc=yes],
1683 [emacs_cv_var_doug_lea_malloc=no])])
1684 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1687 dnl See comments in aix4-2.h about maybe using system malloc there.
1690 ## darwin ld insists on the use of malloc routines in the System framework.
1691 darwin|sol2-10) system_malloc=yes ;;
1694 if test "${system_malloc}" = "yes"; then
1695 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1698 (The GNU allocators don't work with this system configuration.)"
1702 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1703 VMLIMIT_OBJ=vm-limit.o
1705 AC_CHECK_HEADERS([sys/vlimit.h])
1706 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1709 [[extern char data_start[]; char ch;]],
1710 [[return data_start < &ch;]])],
1711 [emacs_cv_data_start=yes],
1712 [emacs_cv_data_start=no])])
1713 if test $emacs_cv_data_start = yes; then
1714 AC_DEFINE([HAVE_DATA_START], 1,
1715 [Define to 1 if data_start is the address of the start
1716 of the main data segment.])
1719 AC_SUBST(GMALLOC_OBJ)
1720 AC_SUBST(VMLIMIT_OBJ)
1722 if test "$doug_lea_malloc" = "yes" ; then
1723 if test "$GNU_MALLOC" = yes ; then
1725 (Using Doug Lea's new malloc from the GNU C Library.)"
1727 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1728 [Define to 1 if you are using the GNU C Library.])
1730 ## Use mmap directly for allocating larger buffers.
1731 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1732 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1733 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1735 gnu*) REL_ALLOC=no ;;
1739 if test x"${REL_ALLOC}" = x; then
1740 REL_ALLOC=${GNU_MALLOC}
1743 use_mmap_for_buffers=no
1745 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1749 if test $use_mmap_for_buffers = yes; then
1750 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1754 LIBS="$LIBS_SYSTEM $LIBS"
1756 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1757 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1758 AC_CHECK_LIB(dnet, dnet_ntoa)
1759 dnl This causes -lresolv to get used in subsequent tests,
1760 dnl which causes failures on some systems such as HPUX 9.
1761 dnl AC_CHECK_LIB(resolv, gethostbyname)
1763 dnl FIXME replace main with a function we actually want from this library.
1764 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1766 dnl Check if pthreads is available.
1768 AC_CHECK_HEADERS_ONCE(pthread.h)
1769 if test "$ac_cv_header_pthread_h"; then
1770 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1771 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1772 dnl testing for pthread_self if Emacs uses gmalloc.c.
1773 if test "$GMALLOC_OBJ" = gmalloc.o; then
1774 emacs_pthread_function=pthread_atfork
1776 emacs_pthread_function=pthread_self
1778 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1780 if test "$HAVE_PTHREAD" = yes; then
1781 case "${canonical}" in
1783 *) LIB_PTHREAD="-lpthread"
1784 LIBS="$LIB_PTHREAD $LIBS" ;;
1786 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1788 AC_SUBST([LIB_PTHREAD])
1790 AC_CHECK_LIB(pthreads, cma_open)
1792 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1793 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1794 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1795 ## added to LIBS in configure would never contain the pthreads part,
1796 ## but the value used in Makefiles might. FIXME?
1798 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1799 ## be harmless on older versions of X where it happens to exist.
1800 test "$opsys" = "aix4-2" && \
1801 test $ac_cv_lib_pthreads_cma_open = yes && \
1802 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1804 dnl Check for need for bigtoc support on IBM AIX
1808 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1810 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1811 *) gdb_cv_bigtoc=-bbigtoc ;;
1814 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1815 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1820 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1821 # used for the tests that follow. We set them back to REAL_CFLAGS and
1822 # REAL_CPPFLAGS later on.
1824 REAL_CFLAGS="$CFLAGS"
1825 REAL_CPPFLAGS="$CPPFLAGS"
1827 if test "${HAVE_X11}" = "yes"; then
1828 DEFS="$C_SWITCH_X_SITE $DEFS"
1829 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1831 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1832 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1834 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1835 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1836 # but it's more convenient here to set LD_RUN_PATH since this
1837 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1838 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1839 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1843 if test "${opsys}" = "gnu-linux"; then
1844 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1845 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1846 [[XOpenDisplay ("foo");]])],
1847 [xgnu_linux_first_failure=no],
1848 [xgnu_linux_first_failure=yes])
1849 if test "${xgnu_linux_first_failure}" = "yes"; then
1850 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1851 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1852 OLD_CPPFLAGS="$CPPFLAGS"
1854 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1855 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1856 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1857 LIBS="$LIBS -b i486-linuxaout"
1858 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1859 [[XOpenDisplay ("foo");]])],
1860 [xgnu_linux_second_failure=no],
1861 [xgnu_linux_second_failure=yes])
1862 if test "${xgnu_linux_second_failure}" = "yes"; then
1863 # If we get the same failure with -b, there is no use adding -b.
1864 # So take it out. This plays safe.
1865 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1866 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1867 CPPFLAGS="$OLD_CPPFLAGS"
1878 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1879 # header files included from there.
1880 AC_MSG_CHECKING(for Xkb)
1881 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1882 #include <X11/XKBlib.h>]],
1883 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1884 emacs_xkb=yes, emacs_xkb=no)
1885 AC_MSG_RESULT($emacs_xkb)
1886 if test $emacs_xkb = yes; then
1887 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
1890 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1891 XScreenNumberOfScreen)
1894 if test "${window_system}" = "x11"; then
1895 AC_MSG_CHECKING(X11 version 6)
1896 AC_CACHE_VAL(emacs_cv_x11_version_6,
1897 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1898 [[#if XlibSpecificationRelease < 6
1901 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1902 if test $emacs_cv_x11_version_6 = yes; then
1903 AC_MSG_RESULT(6 or newer)
1904 AC_DEFINE(HAVE_X11R6, 1,
1905 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1906 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1907 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1911 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1912 [Define if you have usable X11R6-style XIM support.])
1916 AC_MSG_RESULT(before 6)
1921 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1923 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
1924 if test "${with_rsvg}" != "no"; then
1925 RSVG_REQUIRED=2.11.0
1926 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1928 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1929 AC_SUBST(RSVG_CFLAGS)
1932 if test $HAVE_RSVG = yes; then
1933 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1934 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1935 LIBS="$RSVG_LIBS $LIBS"
1941 if test "${HAVE_X11}" = "yes"; then
1942 if test "${with_imagemagick}" != "no"; then
1943 ## 6.2.8 is the earliest version known to work, but earlier versions
1944 ## might work - let us know if you find one.
1945 ## 6.0.7 does not work. See bug#7955.
1946 ## 6.8.2 makes Emacs crash; see Bug#13867.
1947 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
1948 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1949 AC_SUBST(IMAGEMAGICK_CFLAGS)
1950 AC_SUBST(IMAGEMAGICK_LIBS)
1952 if test $HAVE_IMAGEMAGICK = yes; then
1953 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1954 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1955 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1956 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1966 if test "${opsys}" != "mingw32"; then
1967 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1970 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1972 dnl Checks for libraries.
1973 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1974 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1975 AC_MSG_ERROR($GTK_PKG_ERRORS)
1977 if test "$pkg_check_gtk" = "yes"; then
1978 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1979 GTK_OBJ=emacsgtkfixed.o
1980 term_header=gtkutil.h
1981 USE_GTK_TOOLKIT="GTK3"
1982 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
1983 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
1987 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1991 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1994 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1996 dnl Checks for libraries.
1997 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1998 if test "$pkg_check_gtk" = "no" &&
1999 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2001 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2003 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2007 if test x"$pkg_check_gtk" = xyes; then
2009 AC_SUBST(GTK_CFLAGS)
2011 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2012 CFLAGS="$CFLAGS $GTK_CFLAGS"
2013 LIBS="$GTK_LIBS $LIBS"
2014 dnl Try to compile a simple GTK program.
2016 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2017 if test "${GTK_COMPILES}" != "yes"; then
2018 if test "$USE_X_TOOLKIT" != "maybe"; then
2019 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2023 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2024 GTK_OBJ="gtkutil.o $GTK_OBJ"
2026 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2029 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2030 closing open displays. This is no problem if you just use
2031 one display, but if you use more than one and close one of them
2041 if test "${HAVE_GTK}" = "yes"; then
2043 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2044 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2045 if test "$with_toolkit_scroll_bars" != no; then
2046 with_toolkit_scroll_bars=yes
2049 dnl Check if we have the old file selection dialog declared and
2050 dnl in the link library. In 2.x it may be in the library,
2051 dnl but not declared if deprecated featured has been selected out.
2052 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2053 HAVE_GTK_FILE_SELECTION=no
2054 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2055 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2056 #include <gtk/gtk.h>])
2057 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2058 AC_CHECK_FUNCS(gtk_file_selection_new)
2061 dnl Same as above for gtk_handle_box.
2062 HAVE_GTK_HANDLE_BOX=no
2063 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2064 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2065 #include <gtk/gtk.h>])
2066 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2067 AC_CHECK_FUNCS(gtk_handle_box_new)
2070 dnl Same as above for gtk_tearoff_menu_item.
2071 HAVE_GTK_TEAROFF_MENU_ITEM=no
2072 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2073 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2074 #include <gtk/gtk.h>])
2075 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2076 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2079 dnl Check for functions introduced in 2.14 and later.
2080 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2081 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2082 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2083 gtk_orientable_set_orientation \
2084 gtk_window_set_has_resize_grip)
2086 term_header=gtkutil.h
2089 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2090 dnl other platforms.
2093 if test "${with_dbus}" = "yes"; then
2094 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2095 if test "$HAVE_DBUS" = yes; then
2096 LIBS="$LIBS $DBUS_LIBS"
2097 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2098 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2099 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2101 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2102 dbus_type_is_valid \
2103 dbus_validate_bus_name \
2104 dbus_validate_path \
2105 dbus_validate_interface \
2106 dbus_validate_member)
2112 dnl GSettings has been tested under GNU/Linux only.
2114 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2115 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2116 if test "$HAVE_GSETTINGS" = "yes"; then
2117 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2118 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2119 SETTINGS_LIBS="$GSETTINGS_LIBS"
2123 dnl GConf has been tested under GNU/Linux only.
2124 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2126 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2127 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2128 if test "$HAVE_GCONF" = yes; then
2129 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2130 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2131 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2132 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2136 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2137 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2138 if test "$HAVE_GOBJECT" = "yes"; then
2139 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2140 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2142 SAVE_CFLAGS="$CFLAGS"
2144 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2145 LIBS="$SETTINGS_LIBS $LIBS"
2146 AC_CHECK_FUNCS([g_type_init])
2147 CFLAGS="$SAVE_CFLAGS"
2150 AC_SUBST(SETTINGS_CFLAGS)
2151 AC_SUBST(SETTINGS_LIBS)
2154 dnl SELinux is available for GNU/Linux only.
2157 if test "${with_selinux}" = "yes"; then
2158 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2159 if test "$HAVE_LIBSELINUX" = yes; then
2160 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2161 LIBSELINUX_LIBS=-lselinux
2164 AC_SUBST(LIBSELINUX_LIBS)
2167 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2168 if test "${with_gnutls}" = "yes" ; then
2169 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2170 if test "${HAVE_GNUTLS}" = "yes"; then
2171 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2176 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2177 LIBS="$LIBGNUTLS_LIBS $LIBS"
2178 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2180 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2181 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2184 # Windows loads GnuTLS dynamically
2185 if test "${opsys}" = "mingw32"; then
2192 AC_SUBST(LIBGNUTLS_LIBS)
2193 AC_SUBST(LIBGNUTLS_CFLAGS)
2195 dnl inotify is only available on GNU/Linux.
2196 if test "${with_inotify}" = "yes"; then
2197 AC_CHECK_HEADERS(sys/inotify.h)
2198 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2199 AC_CHECK_FUNC(inotify_init1)
2202 if test "$ac_cv_func_inotify_init1" = yes; then
2203 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2206 dnl POSIX ACL support: provided by libacl on GNU/Linux, by libc on FreeBSD.
2209 if test "${with_acl}" = "yes"; then
2210 AC_CHECK_LIB([acl], [acl_set_file], HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2211 if test "$HAVE_POSIX_ACL" = yes; then
2212 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2215 AC_CHECK_FUNC(acl_set_file, HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2216 if test "$HAVE_POSIX_ACL" = yes; then
2217 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2221 AC_SUBST(LIBACL_LIBS)
2223 dnl Do not put whitespace before the #include statements below.
2224 dnl Older compilers (eg sunos4 cc) choke on it.
2227 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2228 if test "$with_xaw3d" != no; then
2229 AC_CACHE_VAL(emacs_cv_xaw3d,
2230 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2231 #include <X11/Intrinsic.h>
2232 #include <X11/Xaw3d/Simple.h>]],
2234 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2235 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2236 emacs_cv_xaw3d=no)])
2240 if test $emacs_cv_xaw3d = yes; then
2241 AC_MSG_CHECKING(for xaw3d)
2242 AC_MSG_RESULT([yes; using Lucid toolkit])
2246 AC_DEFINE(HAVE_XAW3D, 1,
2247 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2249 AC_MSG_CHECKING(for xaw3d)
2251 AC_MSG_CHECKING(for libXaw)
2252 AC_CACHE_VAL(emacs_cv_xaw,
2253 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2254 #include <X11/Intrinsic.h>
2255 #include <X11/Xaw/Simple.h>]],
2259 if test $emacs_cv_xaw = yes; then
2260 AC_MSG_RESULT([yes; using Lucid toolkit])
2263 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2264 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2266 AC_MSG_ERROR([No X toolkit could be found.
2267 If you are sure you want Emacs compiled without an X toolkit, pass
2269 to configure. Otherwise, install the development libraries for the toolkit
2270 that you want to use (e.g. Gtk+) and re-run configure.])
2275 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2278 if test "${USE_X_TOOLKIT}" != "none"; then
2279 AC_MSG_CHECKING(X11 toolkit version)
2280 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2281 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2282 [[#if XtSpecificationRelease < 6
2285 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2286 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2287 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2288 AC_MSG_RESULT(6 or newer)
2289 AC_DEFINE(HAVE_X11XTR6, 1,
2290 [Define to 1 if you have the X11R6 or newer version of Xt.])
2291 LIBXTR6="-lSM -lICE"
2293 ## Use libw.a along with X11R6 Xt.
2294 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2297 AC_MSG_RESULT(before 6)
2300 dnl If using toolkit, check whether libXmu.a exists.
2301 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2303 if test x$HAVE_X11XTR6 = xyes; then
2304 LIBS="-lXt -lSM -lICE $LIBS"
2308 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2309 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2310 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2314 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2315 dnl Why not just test for libxmu in the normal way?
2318 ## These systems don't supply Xmu.
2320 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2328 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2329 if test "${HAVE_X11}" = "yes"; then
2330 if test "${USE_X_TOOLKIT}" != "none"; then
2331 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2336 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2337 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2338 if test -d /usr/include/openmotif; then
2339 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2340 emacs_cv_openmotif=yes
2341 case "$canonical" in
2342 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2343 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2346 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2349 emacs_cv_openmotif=no
2351 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2352 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2353 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2356 Motif version prior to 2.1.
2358 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2359 if test $emacs_cv_motif_version_2_1 = yes; then
2360 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2361 if test x$emacs_cv_openmotif = xyes; then
2362 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2365 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2366 # We put this in CFLAGS temporarily to precede other -I options
2367 # that might be in CFLAGS temporarily.
2368 # We put this in CPPFLAGS where it precedes the other -I options.
2369 OLD_CPPFLAGS=$CPPFLAGS
2371 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2372 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2373 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2375 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2376 if test $emacs_cv_lesstif = yes; then
2377 # Make sure this -I option remains in CPPFLAGS after it is set
2378 # back to REAL_CPPFLAGS.
2379 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2380 # have those other -I options anyway. Ultimately, having this
2381 # directory ultimately in CPPFLAGS will be enough.
2382 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2383 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2386 CPPFLAGS=$OLD_CPPFLAGS
2389 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2390 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2393 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2394 dnl using Motif or Xaw3d is available, and unless
2395 dnl --with-toolkit-scroll-bars=no was specified.
2397 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2398 [Define to 1 if we should use toolkit scroll bars.])dnl
2399 USE_TOOLKIT_SCROLL_BARS=no
2400 if test "${with_toolkit_scroll_bars}" != "no"; then
2401 if test "${USE_X_TOOLKIT}" != "none"; then
2402 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2403 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2405 USE_TOOLKIT_SCROLL_BARS=yes
2406 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2407 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2408 USE_TOOLKIT_SCROLL_BARS=yes
2410 elif test "${HAVE_GTK}" = "yes"; then
2411 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2412 USE_TOOLKIT_SCROLL_BARS=yes
2413 elif test "${HAVE_NS}" = "yes"; then
2414 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2415 USE_TOOLKIT_SCROLL_BARS=yes
2416 elif test "${HAVE_W32}" = "yes"; then
2417 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2418 USE_TOOLKIT_SCROLL_BARS=yes
2422 dnl See if XIM is available.
2423 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2424 #include <X11/Xlib.h>
2425 #include <X11/Xresource.h>]],
2426 [[XIMProc callback;]])],
2428 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2431 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2433 if test "${with_xim}" != "no"; then
2434 AC_DEFINE(USE_XIM, 1,
2435 [Define to 1 if we should use XIM, if it is available.])
2439 if test "${HAVE_XIM}" != "no"; then
2441 if test "$GCC" = yes; then
2442 CFLAGS="$CFLAGS --pedantic-errors"
2444 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2445 #include <X11/Xlib.h>
2446 #include <X11/Xresource.h>]],
2452 XPointer *client_data;
2454 /* If we're not using GCC, it's probably not XFree86, and this is
2455 probably right, but we can't use something like --pedantic-errors. */
2456 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2457 char*, XIMProc, XPointer*);
2459 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2461 [emacs_cv_arg6_star=yes])
2462 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2463 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2464 either XPointer or XPointer*.])dnl
2465 if test "$emacs_cv_arg6_star" = yes; then
2466 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2468 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2473 ### Start of font-backend (under any platform) section.
2474 # (nothing here yet -- this is a placeholder)
2475 ### End of font-backend (under any platform) section.
2477 ### Start of font-backend (under X11) section.
2478 if test "${HAVE_X11}" = "yes"; then
2479 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2481 ## Use -lXft if available, unless `--with-xft=no'.
2483 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2486 if test "x${with_xft}" != "xno"; then
2488 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2489 ## Because xftfont.c uses XRenderQueryExtension, we also
2490 ## need to link to -lXrender.
2492 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2493 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2494 OLD_CPPFLAGS="$CPPFLAGS"
2495 OLD_CFLAGS="$CFLAGS"
2497 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2498 CFLAGS="$CFLAGS $XFT_CFLAGS"
2499 XFT_LIBS="-lXrender $XFT_LIBS"
2500 LIBS="$XFT_LIBS $LIBS"
2501 AC_CHECK_HEADER(X11/Xft/Xft.h,
2502 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2504 if test "${HAVE_XFT}" = "yes"; then
2505 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2507 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2509 CPPFLAGS="$OLD_CPPFLAGS"
2510 CFLAGS="$OLD_CFLAGS"
2512 fi # "${HAVE_XFT}" = "yes"
2513 fi # "$HAVE_XFT" != no
2514 fi # "x${with_xft}" != "xno"
2516 ## We used to allow building with FreeType and without Xft.
2517 ## However, the ftx font backend driver is not in good shape.
2518 if test "$HAVE_XFT" != "yes"; then
2519 dnl For the "Does Emacs use" message at the end.
2523 dnl Strict linkers fail with
2524 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2525 dnl if -lfreetype is not specified.
2526 dnl The following is needed to set FREETYPE_LIBS.
2527 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2530 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2534 if test "${HAVE_FREETYPE}" = "yes"; then
2535 AC_DEFINE(HAVE_FREETYPE, 1,
2536 [Define to 1 if using the freetype and fontconfig libraries.])
2537 if test "${with_libotf}" != "no"; then
2538 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2540 if test "$HAVE_LIBOTF" = "yes"; then
2541 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2542 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2543 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2544 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2545 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2546 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2547 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2551 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2552 dnl Does the new font backend require it, or can it work without it?
2556 if test "${HAVE_LIBOTF}" = yes; then
2557 if test "${with_m17n_flt}" != "no"; then
2558 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2559 if test "$HAVE_M17N_FLT" = "yes"; then
2560 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2571 ### End of font-backend (under X11) section.
2573 AC_SUBST(FREETYPE_CFLAGS)
2574 AC_SUBST(FREETYPE_LIBS)
2575 AC_SUBST(FONTCONFIG_CFLAGS)
2576 AC_SUBST(FONTCONFIG_LIBS)
2577 AC_SUBST(LIBOTF_CFLAGS)
2578 AC_SUBST(LIBOTF_LIBS)
2579 AC_SUBST(M17N_FLT_CFLAGS)
2580 AC_SUBST(M17N_FLT_LIBS)
2582 ### Use -lXpm if available, unless `--with-xpm=no'.
2583 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2586 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2587 if test "${with_xpm}" != "no"; then
2588 SAVE_CPPFLAGS="$CPPFLAGS"
2589 SAVE_LDFLAGS="$LDFLAGS"
2590 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2591 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2592 AC_CHECK_HEADER(X11/xpm.h,
2593 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2594 if test "${HAVE_XPM}" = "yes"; then
2595 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2596 AC_EGREP_CPP(no_return_alloc_pixels,
2597 [#include "X11/xpm.h"
2598 #ifndef XpmReturnAllocPixels
2599 no_return_alloc_pixels
2601 ], HAVE_XPM=no, HAVE_XPM=yes)
2603 if test "${HAVE_XPM}" = "yes"; then
2604 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2608 CPPFLAGS="$SAVE_CPPFLAGS"
2609 LDFLAGS="$SAVE_LDFLAGS"
2614 if test "${HAVE_XPM}" = "yes"; then
2615 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2620 if test "${HAVE_X11}" = "yes"; then
2621 if test "${with_xpm}" != "no"; then
2622 AC_CHECK_HEADER(X11/xpm.h,
2623 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2624 if test "${HAVE_XPM}" = "yes"; then
2625 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2626 AC_EGREP_CPP(no_return_alloc_pixels,
2627 [#include "X11/xpm.h"
2628 #ifndef XpmReturnAllocPixels
2629 no_return_alloc_pixels
2631 ], HAVE_XPM=no, HAVE_XPM=yes)
2633 if test "${HAVE_XPM}" = "yes"; then
2641 if test "${HAVE_XPM}" = "yes"; then
2642 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2647 if test "${opsys}" = "mingw32"; then
2648 if test "${with_xpm}" != "no"; then
2649 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2653 if test "${HAVE_XPM}" = "yes"; then
2654 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2660 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2661 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2664 if test "${opsys}" = "mingw32"; then
2665 if test "${with_jpeg}" != "no"; then
2666 dnl Checking for jpeglib.h can lose because of a redefinition of
2668 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2670 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2671 if test "${HAVE_JPEG}" = "yes"; then
2672 AC_DEFINE(HAVE_JPEG)
2673 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2674 [#include <jpeglib.h>
2675 version=JPEG_LIB_VERSION
2677 [AC_DEFINE(HAVE_JPEG)],
2678 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2681 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2682 if test "${with_jpeg}" != "no"; then
2683 dnl Checking for jpeglib.h can lose because of a redefinition of
2685 AC_CHECK_HEADER(jerror.h,
2686 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2689 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2690 if test "${HAVE_JPEG}" = "yes"; then
2691 AC_DEFINE(HAVE_JPEG)
2692 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2693 [#include <jpeglib.h>
2694 version=JPEG_LIB_VERSION
2696 [AC_DEFINE(HAVE_JPEG)],
2697 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2700 if test "${HAVE_JPEG}" = "yes"; then
2706 ### Use -lpng if available, unless `--with-png=no'.
2707 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2710 if test "${opsys}" = "mingw32"; then
2711 if test "${with_png}" != "no"; then
2712 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2714 if test "${HAVE_PNG}" = "yes"; then
2715 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2717 AC_CHECK_DECL(png_longjmp,
2719 [AC_DEFINE(PNG_DEPSTRUCT, [],
2720 [Define to empty to suppress deprecation warnings when building
2721 with --enable-gcc-warnings and with libpng versions before 1.5,
2722 which lack png_longjmp.])],
2723 [[#ifdef HAVE_LIBPNG_PNG_H
2724 # include <libpng/png.h>
2730 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2731 if test "${with_png}" != "no"; then
2732 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2733 # in /usr/include/libpng.
2734 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2735 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2736 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2740 if test "${HAVE_PNG}" = "yes"; then
2741 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2742 LIBPNG="-lpng -lz -lm"
2744 AC_CHECK_DECL(png_longjmp,
2746 [AC_DEFINE(PNG_DEPSTRUCT, [],
2747 [Define to empty to suppress deprecation warnings when building
2748 with --enable-gcc-warnings and with libpng versions before 1.5,
2749 which lack png_longjmp.])],
2750 [[#ifdef HAVE_LIBPNG_PNG_H
2751 # include <libpng/png.h>
2760 ### Use -ltiff if available, unless `--with-tiff=no'.
2761 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
2764 if test "${opsys}" = "mingw32"; then
2765 if test "${with_tiff}" != "no"; then
2766 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
2768 if test "${HAVE_TIFF}" = "yes"; then
2769 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2771 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2772 if test "${with_tiff}" != "no"; then
2773 AC_CHECK_HEADER(tiffio.h,
2775 # At least one tiff package requires the jpeg library.
2776 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2777 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2780 if test "${HAVE_TIFF}" = "yes"; then
2781 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2782 dnl FIXME -lz -lm, as per libpng?
2788 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2789 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
2792 if test "${opsys}" = "mingw32"; then
2793 if test "${with_gif}" != "no"; then
2794 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
2796 if test "${HAVE_GIF}" = "yes"; then
2797 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2799 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2800 || test "${HAVE_W32}" = "yes"; then
2801 AC_CHECK_HEADER(gif_lib.h,
2802 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2803 # Earlier versions can crash Emacs.
2804 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2806 if test "$HAVE_GIF" = yes; then
2808 elif test "$HAVE_GIF" = maybe; then
2809 # If gif_lib.h but no libgif, try libungif.
2810 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2811 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2814 if test "${HAVE_GIF}" = "yes"; then
2815 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2820 dnl Check for required libraries.
2821 if test "${HAVE_X11}" = "yes"; then
2824 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2825 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2826 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2827 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2828 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2829 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2830 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2831 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2832 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2833 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2835 if test "X${MISSING}" != X; then
2836 AC_MSG_ERROR([The following required libraries were not found:
2838 Maybe some development libraries/packages are missing?
2839 If you don't want to link with them give
2841 as options to configure])
2845 ### Use -lgpm if available, unless `--with-gpm=no'.
2848 if test "${with_gpm}" != "no"; then
2849 AC_CHECK_HEADER(gpm.h,
2850 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2852 if test "${HAVE_GPM}" = "yes"; then
2853 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2859 dnl Check for malloc/malloc.h on darwin
2860 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2863 ### Use NeXTstep API to implement GUI.
2864 if test "${HAVE_NS}" = "yes"; then
2865 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2866 if test "${NS_IMPL_COCOA}" = "yes"; then
2867 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2869 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2870 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2871 # See also .m.o rule in Makefile.in */
2872 # FIXME: are all these flags really needed? Document here why. */
2873 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2874 ## Extra CFLAGS applied to src/*.m files.
2875 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"
2877 # We also have mouse menus.
2882 if test "${HAVE_W32}" = "yes"; then
2886 ### Use session management (-lSM -lICE) if available
2889 if test "${HAVE_X11}" = "yes"; then
2890 AC_CHECK_HEADER(X11/SM/SMlib.h,
2891 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2893 if test "${HAVE_X_SM}" = "yes"; then
2894 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2898 *) LIBS="$LIBXSM $LIBS" ;;
2904 ### Use libxml (-lxml2) if available
2905 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
2907 if test "${with_xml2}" != "no"; then
2908 ### I'm not sure what the version number should be, so I just guessed.
2909 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2910 if test "${HAVE_LIBXML2}" = "yes"; then
2911 if test "${opsys}" != "mingw32"; then
2912 LIBS="$LIBXML2_LIBS $LIBS"
2913 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2917 if test "${HAVE_LIBXML2}" = "yes"; then
2918 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2925 AC_SUBST(LIBXML2_LIBS)
2926 AC_SUBST(LIBXML2_CFLAGS)
2928 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2929 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
2930 if test "${opsys}" = "mingw32"; then
2931 emacs_cv_netdb_declares_h_errno=yes
2933 AC_CACHE_CHECK(whether netdb declares h_errno,
2934 emacs_cv_netdb_declares_h_errno,
2935 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2936 [[return h_errno;]])],
2937 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2938 if test $emacs_cv_netdb_declares_h_errno = yes; then
2939 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2942 # sqrt and other floating-point functions such as fmod and frexp
2943 # are found in -lm on most systems, but mingw32 doesn't use -lm.
2944 if test "${opsys}" != "mingw32"; then
2945 AC_CHECK_LIB(m, sqrt)
2948 # Check for mail-locking functions in a "mail" library. Probably this should
2949 # have the same check as for liblockfile below.
2950 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2951 if test $have_mail = yes; then
2953 LIBS="$LIBS_MAIL $LIBS"
2954 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2958 dnl Debian, at least:
2959 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2960 if test $have_lockfile = yes; then
2961 LIBS_MAIL=-llockfile
2962 LIBS="$LIBS_MAIL $LIBS"
2963 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2965 # If we have the shared liblockfile, assume we must use it for mail
2966 # locking (e.g. Debian). If we couldn't link against liblockfile
2967 # (no liblockfile.a installed), ensure that we don't need to.
2968 dnl This works for files generally, not just executables.
2969 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2970 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2971 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2972 if test $ac_cv_prog_liblockfile = yes; then
2973 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2974 This probably means that movemail could lose mail.
2975 There may be a `development' package to install containing liblockfile.])
2978 AC_CHECK_HEADERS_ONCE(maillock.h)
2981 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2982 ## interlock access to the mail spool. The alternative is a lock file named
2983 ## /usr/spool/mail/$USER.lock.
2986 aix4-2) mail_lock="lockf" ;;
2988 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2990 ## On GNU/Linux systems, both methods are used by various mail programs.
2991 ## I assume most people are using newer mailers that have heard of flock.
2992 ## Change this if you need to.
2993 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2994 ## configure gets the right answers, and that means *NOT* using flock.
2995 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2996 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2997 ## Debian maintainer hasn't provided a clean fix for Emacs.
2998 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2999 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3000 ## correct logic. -- fx
3001 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3002 ## liblockfile is a Free Software replacement for libmail, used on
3003 ## Debian systems and elsewhere. -rfr.
3006 if test $have_mail = yes || test $have_lockfile = yes; then
3007 test $ac_cv_header_maillock_h = yes && mail_lock=no
3013 case "$mail_lock" in
3014 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3016 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3018 *) BLESSMAIL_TARGET="need-blessmail" ;;
3020 AC_SUBST(BLESSMAIL_TARGET)
3023 AC_CHECK_FUNCS(gethostname \
3024 getrusage get_current_dir_name \
3026 select getpagesize setlocale \
3027 utimes getrlimit setrlimit shutdown getaddrinfo \
3028 strsignal setitimer \
3029 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3030 gai_strerror mkstemp getline getdelim sync \
3031 difftime posix_memalign \
3032 getpwent endpwent getgrent endgrent \
3034 cfmakeraw cfsetspeed copysign __executable_start)
3036 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3037 ## has a broken `rint' in some library versions including math library
3038 ## version number A.09.05.
3039 ## You can fix the math library by installing patch number PHSS_4630.
3040 ## But we can fix it more reliably for Emacs by just not using rint.
3041 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3044 *) AC_CHECK_FUNCS(random rint) ;;
3047 dnl Cannot use AC_CHECK_FUNCS
3048 AC_CACHE_CHECK([for __builtin_unwind_init],
3049 emacs_cv_func___builtin_unwind_init,
3050 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3051 emacs_cv_func___builtin_unwind_init=yes,
3052 emacs_cv_func___builtin_unwind_init=no)])
3053 if test $emacs_cv_func___builtin_unwind_init = yes; then
3054 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3055 [Define to 1 if you have the `__builtin_unwind_init' function.])
3058 AC_CHECK_HEADERS_ONCE(sys/un.h)
3063 AC_CHECK_FUNCS(grantpt)
3065 # PTY-related GNU extensions.
3066 AC_CHECK_FUNCS(getpt posix_openpt)
3068 # Check this now, so that we will NOT find the above functions in ncurses.
3069 # That is because we have not set up to link ncurses in lib-src.
3070 # It's better to believe a function is not available
3071 # than to expect to find it in ncurses.
3072 # Also we need tputs and friends to be able to build at all.
3073 AC_MSG_CHECKING([for library containing tputs])
3074 # Run a test program that contains a call to tputs, a call that is
3075 # never executed. This tests whether a pre-'main' dynamic linker
3076 # works with the library. It's too much trouble to actually call
3077 # tputs in the test program, due to portability hassles. When
3078 # cross-compiling, assume the test program will run if it links.
3079 AC_DEFUN([tputs_link_source], [
3081 [[extern void tputs (const char *, int, int (*)(int));
3082 int main (int argc, char **argv)
3085 tputs (argv[0], 0, 0);
3089 if test "${opsys}" = "mingw32"; then
3092 # Maybe curses should be tried earlier?
3093 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3094 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3096 if test -z "$tputs_library"; then
3100 LIBS_TERMCAP=-l$tputs_library
3102 LIBS="$LIBS_TERMCAP $LIBS"
3104 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3105 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3107 if test "X$msg" != Xno; then
3112 AC_MSG_RESULT([$msg])
3113 if test "X$msg" = Xno; then
3114 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3115 The following libraries were tried (in order):
3116 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3117 Please try installing whichever of these libraries is most appropriate
3118 for your system, together with its header files.
3119 For example, a libncurses-dev(el) or similar package.])
3122 ## Use termcap instead of terminfo?
3123 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3125 ## FIXME? In the cases below where we unconditionally set
3126 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3127 ## if that was found above to have tputs.
3128 ## Should we use the gnu* logic everywhere?
3130 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3131 ## The ncurses library has been moved out of the System framework in
3132 ## Mac OS X 10.2. So if configure detects it, set the command-line
3133 ## option to use it.
3134 darwin) LIBS_TERMCAP="-lncurses" ;;
3136 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3139 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3140 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3141 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3142 [[#if __FreeBSD_version < 400000
3145 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3147 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3149 if test $emacs_cv_freebsd_terminfo = yes; then
3150 LIBS_TERMCAP="-lncurses"
3153 LIBS_TERMCAP="-ltermcap"
3163 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3165 LIBS_TERMCAP="-ltermcap"
3169 openbsd) LIBS_TERMCAP="-lncurses" ;;
3171 ## hpux: Make sure we get select from libc rather than from libcurses
3172 ## because libcurses on HPUX 10.10 has a broken version of select.
3173 ## We used to use -lc -lcurses, but this may be cleaner.
3174 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3175 # set that way, now it uses the default). Isn't this a contradiction?
3176 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3180 TERMCAP_OBJ=tparam.o
3181 if test $TERMINFO = yes; then
3182 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3183 TERMCAP_OBJ=terminfo.o
3185 AC_SUBST(LIBS_TERMCAP)
3186 AC_SUBST(TERMCAP_OBJ)
3189 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3190 # On Darwin, res_init appears not to be useful: see bug#562 and
3191 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3194 if test $opsys != darwin; then
3196 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3197 #include <arpa/nameser.h>
3198 #include <resolv.h>]],
3199 [[return res_init();]])],
3200 have_res_init=yes, have_res_init=no)
3201 if test "$have_res_init" = no; then
3203 LIBS="$LIBS -lresolv"
3204 AC_MSG_CHECKING(for res_init with -lresolv)
3205 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3206 #include <arpa/nameser.h>
3207 #include <resolv.h>]],
3208 [[return res_init();]])],
3209 have_res_init=yes, have_res_init=no)
3210 AC_MSG_RESULT($have_res_init)
3211 if test "$have_res_init" = yes ; then
3217 if test "$have_res_init" = yes; then
3218 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3222 # Do we need the Hesiod library to provide the support routines?
3223 dnl FIXME? Should we be skipping this on Darwin too?
3225 if test "$with_hesiod" != no ; then
3226 # Don't set $LIBS here -- see comments above. FIXME which comments?
3227 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3228 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3229 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3230 if test "$resolv" = yes ; then
3235 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3236 hesiod=yes, :, $RESOLVLIB)])
3238 if test x"$hesiod" = xyes; then
3239 AC_DEFINE(HAVE_LIBHESIOD, 1,
3240 [Define to 1 if you have the hesiod library (-lhesiod).])
3246 # Do we need libresolv (due to res_init or Hesiod)?
3247 if test "$resolv" = yes && test $opsys != darwin; then
3248 AC_DEFINE(HAVE_LIBRESOLV, 1,
3249 [Define to 1 if you have the resolv library (-lresolv).])
3256 # These tell us which Kerberos-related libraries to use.
3263 if test "${with_kerberos}" != no; then
3264 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3265 if test $have_com_err = yes; then
3266 COM_ERRLIB=-lcom_err
3267 LIBS="$COM_ERRLIB $LIBS"
3268 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3270 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3271 if test $have_crypto = yes; then
3273 LIBS="$CRYPTOLIB $LIBS"
3274 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3276 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3277 if test $have_k5crypto = yes; then
3278 CRYPTOLIB=-lk5crypto
3279 LIBS="$CRYPTOLIB $LIBS"
3280 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3282 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3283 if test $have_krb5=yes; then
3285 LIBS="$KRB5LIB $LIBS"
3286 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3288 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3289 if test "${with_kerberos5}" = no; then
3290 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3291 if test $have_des425 = yes; then
3293 LIBS="$DESLIB $LIBS"
3294 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3296 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3297 if test $have_des = yes; then
3299 LIBS="$DESLIB $LIBS"
3300 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3303 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3304 if test $have_krb4 = yes; then
3306 LIBS="$KRB4LIB $LIBS"
3307 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3309 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3310 if test $have_krb = yes; then
3312 LIBS="$KRB4LIB $LIBS"
3313 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3318 if test "${with_kerberos5}" != no; then
3319 AC_CHECK_HEADERS(krb5.h,
3320 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3321 [#include <krb5.h>])])
3323 AC_CHECK_HEADERS(des.h,,
3324 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3325 [AC_CHECK_HEADERS(kerberos/des.h)])])
3326 AC_CHECK_HEADERS(krb.h,,
3327 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3328 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3330 AC_CHECK_HEADERS(com_err.h)
3333 AC_SUBST(COM_ERRLIB)
3339 AC_CHECK_FUNCS_ONCE(tzset)
3340 AC_MSG_CHECKING(whether localtime caches TZ)
3341 AC_CACHE_VAL(emacs_cv_localtime_cache,
3342 [if test x$ac_cv_func_tzset = xyes; then
3343 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3344 char TZ_GMT0[] = "TZ=GMT0";
3345 char TZ_PST8[] = "TZ=PST8";
3348 time_t now = time ((time_t *) 0);
3349 int hour_GMT0, hour_unset;
3350 if (putenv (TZ_GMT0) != 0)
3352 hour_GMT0 = localtime (&now)->tm_hour;
3354 hour_unset = localtime (&now)->tm_hour;
3355 if (putenv (TZ_PST8) != 0)
3357 if (localtime (&now)->tm_hour == hour_GMT0)
3360 if (localtime (&now)->tm_hour != hour_unset)
3363 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3364 [# If we have tzset, assume the worst when cross-compiling.
3365 emacs_cv_localtime_cache=yes])
3367 # If we lack tzset, report that localtime does not cache TZ,
3368 # since we can't invalidate the cache if we don't have tzset.
3369 emacs_cv_localtime_cache=no
3371 AC_MSG_RESULT($emacs_cv_localtime_cache)
3372 if test $emacs_cv_localtime_cache = yes; then
3373 AC_DEFINE(LOCALTIME_CACHE, 1,
3374 [Define to 1 if localtime caches TZ.])
3378 AC_CHECK_FUNC(socket, , ok_so_far=no)
3379 if test $ok_so_far = yes; then
3380 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3382 if test $ok_so_far = yes; then
3383 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3385 if test $ok_so_far = yes; then
3386 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3387 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3388 [Define to 1 if you have inet sockets.])
3391 if test -f /usr/lpp/X11/bin/smt.exp; then
3392 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3393 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3396 AC_MSG_CHECKING(whether system supports dynamic ptys)
3397 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3399 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3404 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3405 dnl This can be removed once we assume Autoconf 2.70.
3407 *-solaris2.4 | *-solaris2.4.*)
3408 dnl Disable the Autoconf-generated vfork test.
3409 : ${ac_cv_func_vfork_works=no};;
3414 AC_CHECK_FUNCS(snprintf)
3416 dnl Adapted from Haible's version.
3417 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3418 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3419 [[char* cs = nl_langinfo(CODESET);]])],
3420 emacs_cv_langinfo_codeset=yes,
3421 emacs_cv_langinfo_codeset=no)
3423 if test $emacs_cv_langinfo_codeset = yes; then
3424 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3425 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3430 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3431 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3432 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3433 if test "$emacs_cv_c_restrict_arr" = yes; then
3434 AC_DEFINE(__restrict_arr, __restrict,
3435 [Define to compiler's equivalent of C99 restrict keyword in array
3436 declarations. Define as empty for no equivalent.])
3439 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3440 dnl how the tty code is related to POSIX and/or other versions of termios.
3441 dnl The following looks like a useful start.
3443 dnl AC_SYS_POSIX_TERMIOS
3444 dnl if test $ac_cv_sys_posix_termios = yes; then
3445 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3446 dnl and macros for terminal control.])
3447 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3450 dnl Turned on June 1996 supposing nobody will mind it.
3451 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3452 if test "${opsys}" != "mingw32"; then
3453 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3454 in the full name stands for the login id.])
3457 dnl Every platform that uses configure supports this.
3458 dnl There is a create-lockfiles option you can
3459 dnl customize if you do not want the lock files to be written.
3460 dnl So it is not clear that this #define still needs to exist.
3461 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3462 so that Emacs can tell instantly when you try to modify a file that
3463 someone else has modified in his/her Emacs.])
3465 dnl Everybody supports this, except MS.
3466 dnl Seems like the kind of thing we should be testing for, though.
3467 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3468 if test "${opsys}" != "mingw32"; then
3469 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3472 dnl Everybody supports this, except MS-DOS.
3473 dnl Seems like the kind of thing we should be testing for, though.
3474 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3475 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3476 4.2-compatible sockets.])
3478 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3480 if test "${opsys}" = "mingw32"; then
3481 AC_DEFINE(NULL_DEVICE, ["NUL:"], [Name of the file to open to get
3482 a null file, or a data sink.])
3484 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3485 a null file, or a data sink.])
3488 if test "${opsys}" = "mingw32"; then
3489 AC_DEFINE(SEPCHAR, [';'], [Character that separates PATH elements.])
3491 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3494 dnl Everybody supports this, except MS-DOS.
3495 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3497 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3500 AC_DEFINE(DIRECTORY_SEP, ['/'],
3501 [Character that separates directories in a file name.])
3503 if test "${opsys}" = "mingw32"; then
3504 dnl Only used on MS platforms.
3505 AC_DEFINE(DEVICE_SEP, ':', [Character that separates a device in a file name.])
3506 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == DEVICE_SEP)],
3507 [Returns true if character is a device separator.])
3509 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3510 [Returns true if character is a directory separator.])
3512 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3513 [Returns true if character is any form of separator.])
3515 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3517 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3518 [Returns true if character is a device separator.])
3520 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3521 [Returns true if character is a directory separator.])
3523 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3524 [Returns true if character is any form of separator.])
3527 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3531 dnl Unfortunately without libXmu we cannot support EditRes.
3532 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3533 AC_DEFINE(NO_EDITRES, 1)
3538 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3539 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3540 AC_DEFINE(NO_EDITRES, 1)
3546 irix6-5 | sol2* | unixware )
3547 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3548 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3549 dnl need the constant to dimension an array. So wire in the appropriate
3551 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3555 emacs_broken_SIGIO=no
3558 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3559 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3560 hpux* | irix6-5 | openbsd | sol2* | unixware )
3561 emacs_broken_SIGIO=yes
3565 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3566 dnl the way this system works, libc functions that return malloced
3567 dnl memory use the libc malloc implementation. Calling xfree or
3568 dnl xrealloc on the results of such functions results in a crash.
3570 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3571 dnl but that does not currently work on this system.
3573 dnl It is possible to completely override the malloc implementation on
3574 dnl AIX, but that involves putting the malloc functions in a shared
3575 dnl library and setting the MALLOCTYPE environment variable to point to
3576 dnl that shared library.
3578 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3579 dnl to avoid a crash just use the Emacs implementation for that function.
3581 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3582 dnl of this file, so that we do not check for get_current_dir_name
3583 dnl on AIX. But that might be fragile if something else ends
3584 dnl up testing for get_current_dir_name as a dependency.
3585 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3586 get_current_dir_name should not be used.])
3590 dnl Circumvent a bug in FreeBSD. In the following sequence of
3591 dnl writes/reads on a PTY, read(2) returns bogus data:
3593 dnl write(2) 1022 bytes
3594 dnl write(2) 954 bytes, get EAGAIN
3595 dnl read(2) 1024 bytes in process_read_output
3596 dnl read(2) 11 bytes in process_read_output
3598 dnl That is, read(2) returns more bytes than have ever been written
3599 dnl successfully. The 1033 bytes read are the 1022 bytes written
3600 dnl successfully after processing (for example with CRs added if the
3601 dnl terminal is set up that way which it is here). The same bytes will
3602 dnl be seen again in a later read(2), without the CRs.
3603 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3604 work around an issue when reading from a PTY.])
3610 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3611 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3616 darwin | freebsd | netbsd | openbsd )
3617 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3618 close a pty to make it a controlling terminal (it is already a
3619 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3623 dnl FIXME Surely we can test for this rather than hard-code it.
3625 netbsd | openbsd) sound_device="/dev/audio" ;;
3626 *) sound_device="/dev/dsp" ;;
3630 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3631 [Name of the default sound device.])
3634 dnl Emacs can read input using SIGIO and buffering characters itself,
3635 dnl or using CBREAK mode and making C-g cause SIGINT.
3636 dnl The choice is controlled by the variable interrupt_input.
3638 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3640 dnl Emacs uses the presence of the USABLE_SIGIO macro
3641 dnl to indicate whether or not signal-driven I/O is possible. It uses
3642 dnl INTERRUPT_INPUT to decide whether to use it by default.
3644 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3645 dnl CBREAK mode has two disadvantages
3646 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3647 dnl I hear that in system V this problem does not exist.
3648 dnl 2) Control-G causes output to be discarded.
3649 dnl I do not know whether this can be fixed in system V.
3651 dnl Another method of doing input is planned but not implemented.
3652 dnl It would have Emacs fork off a separate process
3653 dnl to read the input and send it to the true Emacs process
3656 darwin | gnu-linux | gnu-kfreebsd )
3657 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3662 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3663 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3664 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3665 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3666 dnl taking float or double parameters.
3668 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3669 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3670 file defines `NeedWidePrototypes' as `NO'.])
3675 dnl Used in process.c, this must be a loop, even if it only runs once.
3676 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3677 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3678 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3679 dnl trying suffixes 0-16.
3680 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3681 first PTY, if PTYs are supported.])
3682 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3683 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3684 end of a PTY, if non-standard.])
3685 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3686 end of a PTY, if non-standard.])
3690 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3691 dnl You allocate a pty by opening /dev/ptc to get the master side.
3692 dnl To get the name of the slave side, you just ttyname() the master side.
3693 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3694 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3698 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3699 dnl multi-line AC_DEFINEs are hard. :(
3700 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)])
3701 AC_DEFINE(PTY_NAME_SPRINTF, [])
3702 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3705 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3707 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3708 dnl Not used, because PTY_ITERATION is defined.
3709 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3710 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3711 dnl But we don't have to block SIGCHLD because it is blocked in the
3712 dnl implementation of grantpt.
3713 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3714 AC_DEFINE(PTY_NAME_SPRINTF, [])
3715 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3719 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3722 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3724 if test "x$ac_cv_func_grantpt" = xyes; then
3725 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3726 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3727 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3728 dnl to prevent sigchld_handler from intercepting the child's death.
3729 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); }])
3730 dnl if HAVE_POSIX_OPENPT
3731 if test "x$ac_cv_func_posix_openpt" = xyes; then
3732 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3733 AC_DEFINE(PTY_NAME_SPRINTF, [])
3735 elif test "x$ac_cv_func_getpt" = xyes; then
3736 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3737 AC_DEFINE(PTY_NAME_SPRINTF, [])
3739 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3742 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3747 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3748 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3749 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3753 dnl It looks like this cannot be right, because it is not a loop.
3754 dnl However, process.c actually does this:
3760 dnl which presumably makes it OK, since irix == sgi (?).
3761 dnl FIXME it seems like this special treatment is unnecessary?
3762 dnl Why can't irix use a single-trip loop like eg cygwin?
3763 AC_DEFINE(PTY_ITERATION, [])
3764 dnl Not used, because PTY_ITERATION is defined.
3765 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3766 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); }])
3767 dnl No need to get the pty name at all.
3768 AC_DEFINE(PTY_NAME_SPRINTF, [])
3769 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3770 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3774 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3775 dnl from intercepting that death. If any child but grantpt's should die
3776 dnl within, it should be caught after sigrelse(2).
3777 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); }])
3781 dnl Comments are as per sol2*.
3782 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); }])
3789 dnl This change means that we don't loop through allocate_pty too
3790 dnl many times in the (rare) event of a failure.
3791 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3792 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3793 dnl Push various streams modules onto a PTY channel. Used in process.c.
3794 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.])
3799 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3800 "typing" a signal character on the pty.])
3803 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3804 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3805 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd | darwin )
3806 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3809 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3810 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3811 gnu-linux | gnu-kfreebsd )
3813 AC_MSG_CHECKING([for signals via characters])
3814 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3815 #include <linux/version.h>
3816 #if LINUX_VERSION_CODE < 0x20400
3817 # error "Linux version too old"
3819 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3821 AC_MSG_RESULT([$emacs_signals_via_chars])
3822 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3827 dnl Used in lisp.h, emacs.c, vm-limit.c
3828 dnl NEWS.18 describes this as "a number which contains
3829 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3830 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3831 stored in a Lisp_Object.])
3832 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3836 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
3837 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
3840 dnl The data segment on this machine always starts at address 0x40000000.
3841 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3844 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3849 AH_TEMPLATE(TAB3, [Undocumented.])
3852 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3854 gnu | freebsd | netbsd | openbsd )
3855 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3856 AC_DEFINE(TAB3, OXTABS)
3859 gnu-linux | gnu-kfreebsd )
3860 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3864 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3865 [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)],
3866 [Mark a secondary stack, like the register stack on the ia64.]), [])
3870 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3871 run_time_remap; for HPUX.])
3876 dnl This won't be used automatically yet. We also need to know, at least,
3877 dnl that the stack is continuous.
3878 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3879 registers relevant for conservative garbage collection in the jmp_buf.])
3883 dnl Not all the architectures are tested, but there are Debian packages
3884 dnl for SCM and/or Guile on them, so the technique must work. See also
3885 dnl comments in alloc.c concerning setjmp and gcc.
3886 dnl Fixme: it's probably safe to just use the GCC conditional below.
3887 gnu-linux | gnu-kfreebsd )
3888 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3889 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3890 || defined __alpha__ || defined __mips__ || defined __s390__ \
3891 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3892 || defined __ia64__ || defined __sh__
3895 # error "setjmp not known to work on this arch"
3897 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
3902 if test x$GCC = xyes; then
3903 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3904 AC_DEFINE(GC_SETJMP_WORKS, 1)
3907 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3908 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3909 AC_DEFINE(GC_SETJMP_WORKS, 1)
3914 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
3915 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3918 [[#include <setjmp.h>
3920 # define _longjmp longjmp
3925 _longjmp (j, 1);]])],
3926 [emacs_cv_func__setjmp=yes],
3927 [emacs_cv_func__setjmp=no])])
3928 if test $emacs_cv_func__setjmp = yes; then
3929 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3931 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3934 [[#include <setjmp.h>
3937 if (! sigsetjmp (j, 1))
3938 siglongjmp (j, 1);]])],
3939 [emacs_cv_func_sigsetjmp=yes],
3940 [emacs_cv_func_sigsetjmp=no])])
3941 if test $emacs_cv_func_sigsetjmp = yes; then
3942 AC_DEFINE([HAVE_SIGSETJMP], 1,
3943 [Define to 1 if sigsetjmp and siglongjmp work.
3944 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3950 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3951 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3952 dnl and this is all we need.
3953 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3960 dnl Used in xfaces.c.
3961 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3962 some systems, where it requires time.h.])
3967 dnl Define symbols to identify the version of Unix this is.
3968 dnl Define all the symbols that apply correctly.
3969 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3970 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3971 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3972 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3973 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3979 dnl This symbol should be defined on AIX Version 3 ???????
3980 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3982 # error "_AIX not defined"
3984 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3988 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3992 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
3993 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
3994 dnl distinguish OS X from pure Darwin.
3995 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3998 gnu-linux | gnu-kfreebsd )
4000 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4006 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4012 AC_DEFINE(USG5_4, [])
4013 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4017 AC_DEFINE(DOS_NT, [])
4018 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4024 AC_DEFINE(USG5_4, [])
4025 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4031 AC_DEFINE(USG5_4, [])
4035 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4038 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4039 emacs_cv_usable_FIONREAD=no
4043 emacs_cv_usable_FIONREAD=yes
4048 [AC_LANG_PROGRAM([[#include <sys/types.h>
4049 #include <sys/ioctl.h>
4051 # include <sys/filio.h>
4054 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4055 [emacs_cv_usable_FIONREAD=yes],
4056 [emacs_cv_usable_FIONREAD=no])
4059 if test $emacs_cv_usable_FIONREAD = yes; then
4060 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4062 if test $emacs_broken_SIGIO = no; then
4063 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4065 [AC_LANG_PROGRAM([[#include <fcntl.h>
4068 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4069 [emacs_cv_usable_SIGIO=yes],
4070 [emacs_cv_usable_SIGIO=no])],
4071 [emacs_cv_usable_SIGIO=yes],
4072 [emacs_cv_usable_SIGIO=no])
4073 if test $emacs_cv_usable_SIGIO = yes; then
4074 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4081 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4082 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4083 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4084 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4086 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4087 G_SLICE environment variable to "always-malloc" at startup, if
4092 dnl It works to open the pty's tty in the parent (Emacs), then
4093 dnl close and reopen it in the child.
4094 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4095 works to open a pty's tty in the parent process, then close and
4096 reopen it in the child.])
4100 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4101 use VSUSP instead of VSWTCH.])
4105 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4110 # Set up the CFLAGS for real compilation, so we can substitute it.
4111 CFLAGS="$REAL_CFLAGS"
4112 CPPFLAGS="$REAL_CPPFLAGS"
4114 ## Hack to detect a buggy GCC version.
4115 if test "x$GCC" = xyes \
4116 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4117 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4118 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4119 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4122 version=$PACKAGE_VERSION
4124 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4125 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4126 [Short copyright string for this version of Emacs.])
4129 ### Specify what sort of things we'll be editing into Makefile and config.h.
4130 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4132 AC_SUBST(configuration)
4137 AC_SUBST(exec_prefix)
4140 AC_SUBST(sharedstatedir)
4141 AC_SUBST(libexecdir)
4146 AC_SUBST(standardlisppath)
4147 AC_SUBST(locallisppath)
4149 AC_SUBST(x_default_search_path)
4151 AC_SUBST(archlibdir)
4156 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4157 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4158 ## end of LIBX_BASE, but nothing ever set it.
4159 AC_SUBST(LD_SWITCH_X_SITE)
4160 AC_SUBST(C_SWITCH_X_SITE)
4161 AC_SUBST(GNUSTEP_CFLAGS)
4163 ## Used in lwlib/Makefile.in.
4164 AC_SUBST(X_TOOLKIT_TYPE)
4166 AC_SUBST(ns_appbindir)
4167 AC_SUBST(ns_appresdir)
4169 AC_SUBST(GNU_OBJC_CFLAGS)
4170 AC_SUBST(OTHER_FILES)
4172 if test -n "${term_header}"; then
4173 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4174 [Define to the header for the built-in window system.])
4177 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4178 [Define to the canonical Emacs configuration name.])
4179 dnl Replace any embedded " characters (bug#13274).
4180 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g"`
4181 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4182 [Define to the options passed to configure.])
4183 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4184 define this to include extra configuration information.])
4188 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4195 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4196 AC_DEFINE(HAVE_X_WINDOWS, 1,
4197 [Define to 1 if you want to use the X window system.])
4199 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4201 if test "$HAVE_XFT" = "yes"; then
4202 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4203 elif test "$HAVE_FREETYPE" = "yes"; then
4204 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4214 if test "${USE_X_TOOLKIT}" != "none" ; then
4216 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4217 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4218 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4219 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4220 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4224 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4225 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4229 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4230 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4231 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4235 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4236 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4239 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4242 AC_SUBST(WIDGET_OBJ)
4245 case "$USE_X_TOOLKIT" in
4246 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4247 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4248 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4250 AC_SUBST(TOOLKIT_LIBW)
4252 if test "${opsys}" != "mingw32"; then
4253 if test "$USE_X_TOOLKIT" = "none"; then
4254 LIBXT_OTHER="\$(LIBXSM)"
4255 OLDXMENU_TARGET="really-oldXMenu"
4257 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4258 OLDXMENU_TARGET="really-lwlib"
4261 AC_SUBST(LIBXT_OTHER)
4263 ## The X Menu stuff is present in the X10 distribution, but missing
4264 ## from X11. If we have X10, just use the installed library;
4265 ## otherwise, use our own copy.
4266 if test "${HAVE_X11}" = "yes" ; then
4267 AC_DEFINE(HAVE_X11, 1,
4268 [Define to 1 if you want to use version 11 of X windows.
4269 Otherwise, Emacs expects to use version 10.])
4271 if test "$USE_X_TOOLKIT" = "none"; then
4272 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4274 OLDXMENU="\${lwlibdir}/liblw.a"
4276 LIBXMENU="\$(OLDXMENU)"
4277 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4278 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4280 ## For a syntactically valid Makefile; not actually used for anything.
4281 ## See comments in src/Makefile.in.
4283 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4284 if test "${HAVE_X_WINDOWS}" = "yes"; then
4293 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4300 AC_SUBST(OLDXMENU_TARGET)
4303 AC_SUBST(LIBX_OTHER)
4304 AC_SUBST(OLDXMENU_DEPS)
4306 if test "${HAVE_MENUS}" = "yes" ; then
4307 AC_DEFINE(HAVE_MENUS, 1,
4308 [Define to 1 if you have mouse menus.
4309 (This is automatic if you use X, but the option to specify it remains.)
4310 It is also defined with other window systems that support xmenu.c.])
4313 if test "${GNU_MALLOC}" = "yes" ; then
4314 AC_DEFINE(GNU_MALLOC, 1,
4315 [Define to 1 if you want to use the GNU memory allocator.])
4319 if test "${REL_ALLOC}" = "yes" ; then
4320 AC_DEFINE(REL_ALLOC, 1,
4321 [Define REL_ALLOC if you want to use the relocating allocator for
4324 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4326 AC_SUBST(RALLOC_OBJ)
4328 if test "$opsys" = "cygwin"; then
4329 CYGWIN_OBJ="sheap.o cygw32.o"
4330 ## Cygwin differs because of its unexec().
4332 POST_ALLOC_OBJ=lastfile.o
4333 elif test "$opsys" = "mingw32"; then
4336 POST_ALLOC_OBJ=lastfile.o
4339 PRE_ALLOC_OBJ=lastfile.o
4342 AC_SUBST(CYGWIN_OBJ)
4343 AC_SUBST(PRE_ALLOC_OBJ)
4344 AC_SUBST(POST_ALLOC_OBJ)
4346 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4347 # it temporarily reverts them to their pre-pkg-config values,
4348 # because gnulib needs to work with both src (which uses the
4349 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4350 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4351 # and it therefore needs to run in an environment where LIBS does not
4352 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4353 # for some package unrelated to lib-src.
4356 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4357 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4358 gl_ASSERT_NO_GNULIB_POSIXCHECK
4359 gl_ASSERT_NO_GNULIB_TESTS
4364 if test "${opsys}" = "mingw32"; then
4365 CPPFLAGS="-DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4366 # Remove unneeded switches from the value of CC that goes to Makefiles
4367 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4371 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4374 ## The -headerpad option tells ld (see man page) to leave room at the
4375 ## end of the header for adding load commands. Needed for dumping.
4376 ## 0x690 is the total size of 30 segment load commands (at 56
4377 ## each); under Cocoa 31 commands are required.
4378 if test "$HAVE_NS" = "yes"; then
4379 libs_nsgui="-framework AppKit"
4385 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4387 ## This is here because src/Makefile.in did some extra fiddling around
4388 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4389 ## LD_SWITCH_SYSTEM_TEMACS instead,
4390 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4391 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4394 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4395 ## find X at run-time.
4396 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4397 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4398 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4399 ## had different values in configure (in ac_link) and src/Makefile.in.
4400 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4401 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4404 LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-subsystem,console -Wl,-entry,__start -Wl,-Map,./temacs.map"
4407 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4410 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4412 ## Common for all window systems
4413 if test "$window_system" != "none"; then
4414 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4415 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4418 AC_SUBST(WINDOW_SYSTEM_OBJ)
4420 AH_TOP([/* GNU Emacs site configuration template file.
4422 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4423 Free Software Foundation, Inc.
4425 This file is part of GNU Emacs.
4427 GNU Emacs is free software: you can redistribute it and/or modify
4428 it under the terms of the GNU General Public License as published by
4429 the Free Software Foundation, either version 3 of the License, or
4430 (at your option) any later version.
4432 GNU Emacs is distributed in the hope that it will be useful,
4433 but WITHOUT ANY WARRANTY; without even the implied warranty of
4434 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4435 GNU General Public License for more details.
4437 You should have received a copy of the GNU General Public License
4438 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4441 /* No code in Emacs #includes config.h twice, but some bits of code
4442 intended to work with other packages as well (like gmalloc.c)
4443 think they can include it as many times as they like. */
4444 #ifndef EMACS_CONFIG_H
4445 #define EMACS_CONFIG_H
4448 AH_BOTTOM([#include <conf_post.h>
4450 #endif /* EMACS_CONFIG_H */
4459 #### Report on what we decided to do.
4460 #### Report GTK as a toolkit, even if it doesn't use Xt.
4461 #### It makes printing result more understandable as using GTK sets
4462 #### toolkit_scroll_bars to yes by default.
4463 if test "${HAVE_GTK}" = "yes"; then
4464 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4468 Configured for \`${canonical}'.
4470 Where should the build process find the source code? ${srcdir}
4471 What compiler should emacs be built with? ${CC} ${CFLAGS}
4472 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4473 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4474 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4475 What window system should Emacs use? ${window_system}
4476 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4478 if test -n "${x_includes}"; then
4479 echo " Where do we find X Windows header files? ${x_includes}"
4481 echo " Where do we find X Windows header files? Standard dirs"
4483 if test -n "${x_libraries}"; then
4484 echo " Where do we find X Windows libraries? ${x_libraries}"
4486 echo " Where do we find X Windows libraries? Standard dirs"
4489 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4490 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4491 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4492 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4493 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4494 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4495 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4496 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4498 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4499 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4500 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4501 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4502 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4503 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4504 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4506 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4507 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4508 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4509 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4511 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4514 if test -n "${EMACSDATA}"; then
4515 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4517 if test -n "${EMACSDOC}"; then
4518 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4523 if test "$HAVE_NS" = "yes"; then
4525 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4526 The installed application will go to nextstep/Emacs.app and can be
4527 run or moved from there."
4528 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4529 echo "The application will be fully self-contained."
4531 echo "The lisp resources for the application will be installed under ${prefix}.
4532 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4533 to run if these resources are not installed."
4538 if test "${opsys}" = "cygwin"; then
4540 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4546 # Remove any trailing slashes in these variables.
4547 [test "${prefix}" != NONE &&
4548 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4549 test "${exec_prefix}" != NONE &&
4550 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4552 if test "$HAVE_NS" = "yes"; then
4553 if test "$NS_IMPL_GNUSTEP" = yes; then
4554 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4555 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4557 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4558 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4562 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4563 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4564 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4565 dnl (else you get "no `Makefile.am' found for any configure output").
4566 dnl This will work, but you get a config.status that is not quite right
4567 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4568 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4569 dnl it seems better to just live with the duplication.
4570 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4572 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4573 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4574 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4575 leim/Makefile nextstep/Makefile])
4577 dnl test/ is not present in release tarfiles.
4578 opt_makefile=test/automated/Makefile
4580 if test -f "$srcdir/$opt_makefile.in"; then
4581 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4582 dnl Again, it's best not to use a variable. Though you can add
4583 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4584 AC_CONFIG_FILES([test/automated/Makefile])
4588 dnl admin/ may or may not be present.
4589 opt_makefile=admin/unidata/Makefile
4591 if test -f "$srcdir/$opt_makefile.in"; then
4592 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4593 AC_CONFIG_FILES([admin/unidata/Makefile])
4597 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4599 AC_SUBST(SUBDIR_MAKEFILES_IN)
4601 dnl Make the necessary directories, if they don't exist.
4602 AC_CONFIG_COMMANDS([mkdirs], [
4603 for dir in etc lisp ; do
4604 test -d ${dir} || mkdir ${dir}
4608 dnl You might wonder (I did) why epaths.h is generated by running make,
4609 dnl rather than just letting configure generate it from epaths.in.
4610 dnl One reason is that the various paths are not fully expanded (see above);
4611 dnl eg gamedir=${prefix}/var/games/emacs.
4612 dnl Secondly, the GNU Coding standards require that one should be able
4613 dnl to run `make prefix=/some/where/else' and override the values set
4614 dnl by configure. This also explains the `move-if-change' test and
4615 dnl the use of force in the `epaths-force' rule in Makefile.in.
4616 AC_CONFIG_COMMANDS([epaths], [
4617 echo creating src/epaths.h
4618 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4619 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4621 AC_CONFIG_COMMANDS([gdbinit], [
4622 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4623 echo creating src/.gdbinit
4624 echo "source $srcdir/src/.gdbinit" > src/.gdbinit