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 $NON_GCC_TEST_OPTIONS"
602 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
603 # as we don't use them.
604 AC_DEFUN([gl_FCNTL_O_FLAGS])
605 # Avoid gnulib's threadlib module, as we do threads our own way.
606 AC_DEFUN([gl_THREADLIB])
608 # Initialize gnulib right after choosing the compiler.
609 dnl Amongst other things, this sets AR and ARFLAGS.
612 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
613 # if -g3 works and the user does not specify CFLAGS.
614 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
615 if test "$ac_test_CFLAGS" != set; then
618 emacs_g3_CFLAGS='-g3';;
620 emacs_g3_CFLAGS='-g3 -O2';;
624 if test -n "$emacs_g3_CFLAGS"; then
625 emacs_save_CFLAGS=$CFLAGS
626 CFLAGS=$emacs_g3_CFLAGS
627 if test $opsys = mingw32; then
628 CFLAGS="$CFLAGS -gdwarf-2"
630 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
631 [emacs_cv_prog_cc_g3],
632 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
633 [emacs_cv_prog_cc_g3=yes],
634 [emacs_cv_prog_cc_g3=no])])
635 if test $emacs_cv_prog_cc_g3 = yes; then
636 CFLAGS=$emacs_g3_CFLAGS
638 CFLAGS=$emacs_save_CFLAGS
643 AC_ARG_ENABLE([gcc-warnings],
644 [AS_HELP_STRING([--enable-gcc-warnings],
645 [turn on lots of GCC warnings/errors. This is intended for
646 developers, and may generate false alarms when used
647 with older or non-GNU development tools.])],
650 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
652 gl_gcc_warnings=$enableval],
656 AC_ARG_ENABLE(link-time-optimization,
657 [AS_HELP_STRING([--enable-link-time-optimization],
658 [build emacs with link-time optimization.
659 This is supported only for GCC since 4.5.0.])],
660 if test "${enableval}" != "no"; then
661 AC_MSG_CHECKING([whether link-time optimization is supported])
663 if test x$GCC = xyes; then
664 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
665 if test x$CPUS != x; then
671 CFLAGS="$CFLAGS $LTO"
672 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
673 [ac_lto_supported=yes], [ac_lto_supported=no])
676 AC_MSG_RESULT([$ac_lto_supported])
677 if test "$ac_lto_supported" = "yes"; then
678 CFLAGS="$CFLAGS $LTO"
682 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
683 # ------------------------------------------------
684 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
685 # Otherwise, run RUN-IF-NOT-FOUND.
686 AC_DEFUN([gl_GCC_VERSION_IFELSE],
690 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
693 # error "your version of gcc is older than $1.$2"
700 # When compiling with GCC, prefer -isystem to -I when including system
701 # include files, to avoid generating useless diagnostics for the files.
702 if test "$gl_gcc_warnings" != yes; then
707 # This, $nw, is the list of warnings we disable.
710 case $with_x_toolkit in
711 lucid | athena | motif)
712 # Old toolkits mishandle 'const'.
713 nw="$nw -Wwrite-strings"
716 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
719 AC_SUBST([WERROR_CFLAGS])
721 nw="$nw -Waggregate-return" # anachronistic
722 nw="$nw -Wlong-long" # C90 is anachronistic
723 nw="$nw -Wc++-compat" # We don't care about C++ compilers
724 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
725 nw="$nw -Wtraditional" # Warns on #elif which we use often
726 nw="$nw -Wcast-qual" # Too many warnings for now
727 nw="$nw -Wconversion" # Too many warnings for now
728 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
729 nw="$nw -Wsign-conversion" # Too many warnings for now
730 nw="$nw -Woverlength-strings" # Not a problem these days
731 nw="$nw -Wtraditional-conversion" # Too many warnings for now
732 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
733 nw="$nw -Wpadded" # Our structs are not padded
734 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
735 nw="$nw -Wlogical-op" # any use of fwrite provokes this
736 nw="$nw -Wformat-nonliteral" # we do this a lot
737 nw="$nw -Wvla" # warnings in gettext.h
738 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
739 nw="$nw -Wswitch-enum" # Too many warnings for now
740 nw="$nw -Wswitch-default" # Too many warnings for now
741 nw="$nw -Wfloat-equal" # warns about high-quality code
742 nw="$nw -Winline" # OK to ignore 'inline'
743 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
744 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
745 # signed overflow has undefined behavior
746 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
747 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
749 # Emacs doesn't care about shadowing; see
750 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
753 # Emacs's use of alloca inhibits protecting the stack.
754 nw="$nw -Wstack-protector"
756 # The following line should be removable at some point.
757 nw="$nw -Wsuggest-attribute=pure"
759 gl_MANYWARN_ALL_GCC([ws])
760 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
764 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
765 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
766 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
767 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
768 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
769 gl_WARN_ADD([-Wno-format-nonliteral])
771 # In spite of excluding -Wlogical-op above, it is enabled, as of
772 # gcc 4.5.0 20090517.
773 gl_WARN_ADD([-Wno-logical-op])
775 gl_WARN_ADD([-fdiagnostics-show-option])
776 gl_WARN_ADD([-funit-at-a-time])
778 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
779 AH_VERBATIM([FORTIFY_SOURCE],
780 [/* Enable compile-time and run-time bounds-checking, and some warnings,
781 without upsetting glibc 2.15+. */
782 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
783 # define _FORTIFY_SOURCE 2
786 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
788 # We use a slightly smaller set of warning options for lib/.
789 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
791 nw="$nw -Wunused-macros"
793 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
794 AC_SUBST([GNULIB_WARN_CFLAGS])
799 dnl Some other nice autoconf tests.
800 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
803 dnl if test "x$RANLIB" = x; then
808 AC_PATH_PROG(INSTALL_INFO, install-info, :,
809 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
810 dnl Don't use GZIP, which is used by gzip for additional parameters.
811 AC_PATH_PROG(GZIP_PROG, gzip)
813 if test $opsys = gnu-linux; then
814 AC_PATH_PROG(PAXCTL, paxctl,,
815 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
816 if test "X$PAXCTL" != X; then
817 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
818 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
819 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
820 else AC_MSG_RESULT(no); PAXCTL=""; fi])
824 ## Need makeinfo >= 4.7 (?) to build the manuals.
825 AC_PATH_PROG(MAKEINFO, makeinfo, no)
826 dnl By this stage, configure has already checked for egrep and set EGREP,
827 dnl or exited with an error if no egrep was found.
828 if test "$MAKEINFO" != "no"; then
830 $MAKEINFO --version 2> /dev/null |
831 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
837 ## Makeinfo is unusual. For a released Emacs, the manuals are
838 ## pre-built, and not deleted by the normal clean rules. makeinfo is
839 ## therefore in the category of "special tools" not normally required, which
840 ## configure does not have to check for (eg autoconf itself).
841 ## In a Bazaar checkout on the other hand, the manuals are not included.
842 ## So makeinfo is a requirement to build from Bazaar, and configure
843 ## should test for it as it does for any other build requirement.
844 ## We use the presence of $srcdir/info/emacs to distinguish a release,
845 ## with pre-built manuals, from a Bazaar checkout.
848 if test "$MAKEINFO" = "no"; then
850 if test "x${with_makeinfo}" = "xno"; then
852 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
853 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
854 source tree does not seem to have pre-built manuals in the `info' directory.
855 Either install a suitable version of makeinfo, or re-run configure
856 with the `--without-makeinfo' option to build without the manuals.] )
859 AC_SUBST(HAVE_MAKEINFO)
861 dnl Just so that there is only a single place we need to edit.
867 dnl Add our options to ac_link now, after it is set up.
869 if test x$GCC = xyes; then
870 test "x$GCC_LINK_TEST_OPTIONS" != x && \
871 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
873 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
874 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
877 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
878 dnl If we can link with the flag, it shouldn't do any harm anyhow.
879 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
880 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
881 dnl if not built to support GNU ld.
883 late_LDFLAGS=$LDFLAGS
884 if test x$GCC = xyes; then
885 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
887 LDFLAGS="$LDFLAGS -znocombreloc"
890 AC_MSG_CHECKING([for -znocombreloc])
891 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
892 [AC_MSG_RESULT(yes)],
893 LDFLAGS=$late_LDFLAGS
897 dnl The function dump-emacs will not be defined and temacs will do
898 dnl (load "loadup") automatically unless told otherwise.
899 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
901 your-opsys-here) CANNOT_DUMP=yes ;;
904 test "$CANNOT_DUMP" = "yes" && \
905 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
907 AC_SUBST(CANNOT_DUMP)
912 # MSDOS uses unexcoff.o
920 UNEXEC_OBJ=unexmacosx.o
923 UNEXEC_OBJ=unexhp9k800.o
929 # Use the Solaris dldump() function, called from unexsol.c, to dump
930 # emacs, instead of the generic ELF dump code found in unexelf.c.
931 # The resulting binary has a complete symbol table, and is better
932 # for debugging and other observability tools (debuggers, pstack, etc).
934 # If you encounter a problem using dldump(), please consider sending
935 # a message to the OpenSolaris tools-linking mailing list:
936 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
938 # It is likely that dldump() works with older Solaris too, but this has
939 # not been tested, so for now this change is for Solaris 10 or newer.
947 ## Let `ld' find image libs and similar things in /usr/local/lib.
948 ## The system compiler, GCC, has apparently been modified to not
949 ## look there, contrary to what a stock GCC would do.
950 ### It's not our place to do this. See bug#10313#17.
951 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
956 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
957 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
961 ### It's not our place to do this. See bug#10313#17.
962 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
967 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
968 ## otherwise Emacs dumps core on elf systems.
969 LD_SWITCH_SYSTEM="-Z"
972 AC_SUBST(LD_SWITCH_SYSTEM)
974 ac_link="$ac_link $LD_SWITCH_SYSTEM"
976 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
977 ## which has not been defined yet. When this was handled with cpp,
978 ## it was expanded to null when configure sourced the s/*.h file.
979 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
980 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
981 ## (or somesuch), but because it is supposed to go at the _front_
982 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
983 ## Compare with the gnu-linux case below, which added to the end
984 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
985 ## LD_SWITCH_SYSTEM_TEMACS.
988 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
995 AC_CHECK_DECL([__ELF__])
996 if test "$ac_cv_have_decl___ELF__" = "yes"; then
997 ## With ELF, make sure that all common symbols get allocated to in the
998 ## data section. Otherwise, the dump of temacs may miss variables in
999 ## the shared library that have been initialized. For example, with
1000 ## GNU libc, __malloc_initialized would normally be resolved to the
1001 ## shared library's .bss section, which is fatal.
1002 if test "x$GCC" = "xyes"; then
1003 C_SWITCH_MACHINE="-fno-common"
1005 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1008 UNEXEC_OBJ=unexalpha.o
1012 AC_SUBST(C_SWITCH_MACHINE)
1014 AC_SUBST(UNEXEC_OBJ)
1017 ## Some programs in src produce warnings saying certain subprograms
1018 ## are too complex and need a MAXMEM value greater than 2000 for
1019 ## additional optimization. --nils@exp-math.uni-essen.de
1020 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1021 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1022 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1023 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1024 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1025 AC_SUBST(C_SWITCH_SYSTEM)
1030 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1031 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1033 freebsd) LIBS_SYSTEM="-lutil" ;;
1035 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1037 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1039 ## Motif needs -lgen.
1040 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1042 AC_SUBST(LIBS_SYSTEM)
1045 ### Make sure subsequent tests use flags consistent with the build flags.
1047 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1048 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1050 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1053 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1054 AC_DEFUN([AC_TYPE_SIZE_T])
1055 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1056 AC_DEFUN([AC_TYPE_UID_T])
1060 dnl Current possibilities handled by sed (aix4-2 -> aix,
1061 dnl gnu-linux -> gnu/linux, etc.):
1062 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1063 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1064 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1071 ## Adding -lm confuses the dynamic linker, so omit it.
1075 SYSTEM_TYPE=berkeley-unix
1077 gnu-linux | gnu-kfreebsd )
1079 hpux10-20 | hpux11 )
1083 SYSTEM_TYPE=windows-nt
1085 dnl NB this may be adjusted below.
1087 SYSTEM_TYPE=berkeley-unix
1091 SYSTEM_TYPE=usg-unix-v
1097 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1098 [The type of system you are compiling for; sets `system-type'.])
1101 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1102 pre_PKG_CONFIG_LIBS=$LIBS
1104 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1106 dnl This function definition taken from Gnome 2.0
1107 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1108 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1109 dnl also defines GSTUFF_PKG_ERRORS on error
1110 AC_DEFUN([PKG_CHECK_MODULES], [
1113 if test "$PKG_CONFIG" = "no" ; then
1114 ifelse([$4], , [AC_MSG_ERROR([
1115 *** 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.])], [$4])
1117 PKG_CONFIG_MIN_VERSION=0.9.0
1118 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1119 AC_MSG_CHECKING(for $2)
1121 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1122 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1123 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1130 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1131 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1132 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1138 ## If we have a custom action on failure, don't print errors, but
1139 ## do set a variable so people can do so. Do it in a subshell
1140 ## to capture any diagnostics in invoking pkg-config.
1141 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1142 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1148 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1149 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1153 if test $succeeded = yes; then
1154 ifelse([$3], , :, [$3])
1156 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])
1160 if test "${with_sound}" != "no"; then
1161 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1162 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h,
1163 have_sound_header=yes, [], [
1165 #define WIN32_LEAN_AND_MEAN
1166 #include <windows.h>
1169 # Emulation library used on NetBSD.
1170 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1174 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1175 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1176 if test $HAVE_ALSA = yes; then
1177 SAVE_CFLAGS="$CFLAGS"
1179 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1180 LIBS="$ALSA_LIBS $LIBS"
1181 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1182 emacs_alsa_normal=yes,
1183 emacs_alsa_normal=no)
1184 if test "$emacs_alsa_normal" != yes; then
1185 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1186 [[snd_lib_error_set_handler (0);]])],
1187 emacs_alsa_subdir=yes,
1188 emacs_alsa_subdir=no)
1189 if test "$emacs_alsa_subdir" != yes; then
1190 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1192 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1195 CFLAGS="$SAVE_CFLAGS"
1197 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1198 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1199 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1202 dnl Define HAVE_SOUND if we have sound support. We know it works and
1203 dnl compiles only on the specified platforms. For others, it
1204 dnl probably doesn't make sense to try.
1205 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1207 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1208 gnu-linux|freebsd|netbsd)
1209 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1212 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1217 AC_SUBST(CFLAGS_SOUND)
1220 dnl checks for header files
1221 AC_CHECK_HEADERS_ONCE(
1222 linux/version.h sys/systeminfo.h
1225 sys/utsname.h pwd.h utmp.h util.h)
1227 AC_MSG_CHECKING(if personality LINUX32 can be set)
1228 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1229 emacs_cv_personality_linux32=yes,
1230 emacs_cv_personality_linux32=no)
1231 AC_MSG_RESULT($emacs_cv_personality_linux32)
1233 if test $emacs_cv_personality_linux32 = yes; then
1234 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1235 [Define to 1 if personality LINUX32 can be set.])
1238 dnl On Solaris 8 there's a compilation warning for term.h because
1239 dnl it doesn't define `bool'.
1240 AC_CHECK_HEADERS(term.h, , , -)
1242 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1244 if test $ac_cv_have_decl_sys_siglist != yes; then
1245 # For Tru64, at least:
1246 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1248 if test $ac_cv_have_decl___sys_siglist = yes; then
1249 AC_DEFINE(sys_siglist, __sys_siglist,
1250 [Define to any substitute for sys_siglist.])
1255 dnl Check for speed_t typedef.
1256 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1257 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1258 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1259 if test $emacs_cv_speed_t = yes; then
1260 AC_DEFINE(HAVE_SPEED_T, 1,
1261 [Define to 1 if `speed_t' is declared by <termios.h>.])
1264 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1265 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1266 #if HAVE_SYS_SOCKET_H
1267 #include <sys/socket.h>
1269 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1270 #if HAVE_SYS_SOCKET_H
1271 #include <sys/socket.h>
1273 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1274 #if HAVE_SYS_SOCKET_H
1275 #include <sys/socket.h>
1278 dnl checks for structure members
1279 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1280 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1281 struct ifreq.ifr_addr,
1282 struct ifreq.ifr_addr.sa_len], , ,
1283 [AC_INCLUDES_DEFAULT
1284 #if HAVE_SYS_SOCKET_H
1285 #include <sys/socket.h>
1291 dnl Check for endianness.
1292 dnl AC_C_BIGENDIAN is done by gnulib.
1294 dnl check for Make feature
1295 dnl AC_PROG_MAKE_SET is done by Automake.
1300 dnl check for GNU Make if we have GCC and autodepend is on.
1301 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1302 AC_MSG_CHECKING([whether we are using GNU Make])
1304 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1305 if test "x$testval" != x; then
1308 ac_enable_autodepend=no
1310 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1311 if test $HAVE_GNU_MAKE = yes; then
1312 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1313 SAVE_CFLAGS="$CFLAGS"
1314 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1315 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1316 CFLAGS="$SAVE_CFLAGS"
1317 test -f deps.d || ac_enable_autodepend=no
1319 AC_MSG_RESULT([$ac_enable_autodepend])
1321 if test $ac_enable_autodepend = yes; then
1322 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1323 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1324 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1325 deps_frag=autodeps.mk
1328 deps_frag=$srcdir/src/$deps_frag
1331 AC_SUBST_FILE(deps_frag)
1334 lisp_frag=$srcdir/src/lisp.mk
1335 AC_SUBST_FILE(lisp_frag)
1338 dnl checks for operating system services
1339 AC_SYS_LONG_FILE_NAMES
1341 #### Choose a window system.
1343 ## We leave window_system equal to none if
1344 ## we end up building without one. Any new window system should
1345 ## set window_system to an appropriate value and add objects to
1346 ## window-system-specific substs.
1350 if test "$no_x" != yes; then
1354 LD_SWITCH_X_SITE_RPATH=
1355 if test "${x_libraries}" != NONE; then
1356 if test -n "${x_libraries}"; then
1357 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1358 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1360 x_default_search_path=""
1361 x_search_path=${x_libraries}
1362 if test -z "${x_search_path}"; then
1363 x_search_path=/usr/lib
1365 for x_library in `echo ${x_search_path}: | \
1366 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1368 ${x_library}/X11/%L/%T/%N%C%S:\
1369 ${x_library}/X11/%l/%T/%N%C%S:\
1370 ${x_library}/X11/%T/%N%C%S:\
1371 ${x_library}/X11/%L/%T/%N%S:\
1372 ${x_library}/X11/%l/%T/%N%S:\
1373 ${x_library}/X11/%T/%N%S"
1374 if test x"${x_default_search_path}" = x; then
1375 x_default_search_path=${x_search_path}
1377 x_default_search_path="${x_search_path}:${x_default_search_path}"
1381 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1383 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1384 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1387 if test x"${x_includes}" = x; then
1388 bitmapdir=/usr/include/X11/bitmaps
1390 # accumulate include directories that have X11 bitmap subdirectories
1392 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1393 if test -d "${bmd}/X11/bitmaps"; then
1394 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1396 if test -d "${bmd}/bitmaps"; then
1397 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1400 if test ${bmd_acc} != "dummyval"; then
1401 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1408 tmp_CPPFLAGS="$CPPFLAGS"
1409 tmp_CFLAGS="$CFLAGS"
1410 CPPFLAGS="$CPPFLAGS -x objective-c"
1411 CFLAGS="$CFLAGS -x objective-c"
1414 if test "${with_ns}" != no; then
1415 if test "${opsys}" = darwin; then
1417 ns_appdir=`pwd`/nextstep/Emacs.app
1418 ns_appbindir=${ns_appdir}/Contents/MacOS
1419 ns_appresdir=${ns_appdir}/Contents/Resources
1420 ns_appsrc=Cocoa/Emacs.base
1421 elif test -f $GNUSTEP_CONFIG_FILE; then
1423 ns_appdir=`pwd`/nextstep/Emacs.app
1424 ns_appbindir=${ns_appdir}
1425 ns_appresdir=${ns_appdir}/Resources
1426 ns_appsrc=GNUstep/Emacs.base
1427 dnl FIXME sourcing this several times in subshells seems inefficient.
1428 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1429 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1430 dnl I seemed to need these as well with GNUstep-startup 0.25.
1431 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1432 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1433 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1434 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1435 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1436 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1437 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1438 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1439 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1440 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1441 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1442 dnl If they had chosen to either define it or not, we could have
1443 dnl just used AC_CHECK_DECL here.
1444 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1445 emacs_cv_objc_exceptions,
1446 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1447 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1451 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1452 if test $emacs_cv_objc_exceptions = yes; then
1453 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1454 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1455 [Define if GNUstep uses ObjC exceptions.])
1456 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1460 dnl This is only used while we test the NS headers, it gets reset below.
1461 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1463 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1464 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1465 files are missing or cannot be compiled.])])
1467 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1469 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1470 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1473 #error "OSX 10.4 or newer required"
1477 ns_osx_have_104=yes,
1479 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1481 ns_have_nsinteger=yes,
1482 ns_have_nsinteger=no)
1483 if test $ns_osx_have_104 = no; then
1484 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1486 if test $ns_have_nsinteger = yes; then
1487 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1491 AC_SUBST(LIBS_GNUSTEP)
1493 INSTALL_ARCH_INDEP_EXTRA=install-etc
1494 ns_self_contained=no
1497 if test "${HAVE_NS}" = yes; then
1498 if test "$with_toolkit_scroll_bars" = "no"; then
1499 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1502 window_system=nextstep
1503 # set up packaging dirs
1504 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1505 ns_self_contained=yes
1506 prefix=${ns_appresdir}
1507 exec_prefix=${ns_appbindir}
1508 dnl This one isn't really used, only archlibdir is.
1509 libexecdir="\${ns_appbindir}/libexec"
1510 archlibdir="\${ns_appbindir}/libexec"
1511 docdir="\${ns_appresdir}/etc"
1512 etcdir="\${ns_appresdir}/etc"
1513 dnl FIXME maybe set datarootdir instead.
1514 dnl That would also get applications, icons, man.
1515 infodir="\${ns_appresdir}/info"
1516 mandir="\${ns_appresdir}/man"
1517 lispdir="\${ns_appresdir}/lisp"
1518 leimdir="\${ns_appresdir}/leim"
1519 INSTALL_ARCH_INDEP_EXTRA=
1521 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1523 CFLAGS="$tmp_CFLAGS"
1524 CPPFLAGS="$tmp_CPPFLAGS"
1525 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1526 AC_SUBST(ns_self_contained)
1528 AC_SUBST(NS_OBJC_OBJ)
1535 if test "${with_w32}" != no; then
1536 if test "${opsys}" != "cygwin"; then
1537 if test "${opsys}" != "mingw32"; then
1538 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1541 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1542 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1543 cannot be found.])])
1545 if test "${opsys}" = "mingw32"; then
1546 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1547 [AC_MSG_ERROR([The windows.h header file is required,
1548 but cannot be found.])])
1549 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1550 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1551 #include <windows.h>
1552 #include <usp10.h>]],
1553 [[void test(PIMAGE_NT_HEADERS pHeader)
1554 {PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader);}]])],
1555 emacs_cv_w32api=yes, emacs_cv_w32api=no)
1556 AC_MSG_RESULT($emacs_cv_w32api)
1557 if test "${emacs_cv_w32api}" = "no"; then
1558 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1562 if test "${HAVE_W32}" = "yes"; then
1563 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1564 AC_CHECK_TOOL(WINDRES, [windres],
1565 [AC_MSG_ERROR([No resource compiler found.])])
1566 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1567 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1568 if test "${opsys}" = "cygwin"; then
1569 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1570 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1572 # Tell the linker that emacs.res is an object (which we compile from
1573 # the rc file), not a linker script.
1574 W32_RES_LINK="-Wl,-bpe-i386 -Wl,emacs.res"
1576 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1577 W32_LIBS="$W32_LIBS -lwinmm -ladvapi32 -lgdi32 -lcomdlg32 -luser32"
1578 W32_LIBS="$W32_LIBS -lmpr -lshell32 -lwinspool -lole32 -lcomctl32 -lusp10"
1584 AC_SUBST(W32_RES_LINK)
1586 if test "${HAVE_W32}" = "yes"; then
1591 ## $window_system is now set to the window system we will
1599 case "${window_system}" in
1604 case "${with_x_toolkit}" in
1605 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1606 motif ) USE_X_TOOLKIT=MOTIF ;;
1608 term_header=gtkutil.h
1609 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1610 dnl USE_X_TOOLKIT is set.
1611 USE_X_TOOLKIT=none ;;
1612 gtk2 ) with_gtk2=yes
1613 term_header=gtkutil.h
1614 USE_X_TOOLKIT=none ;;
1615 gtk3 ) with_gtk3=yes
1616 term_header=gtkutil.h
1617 USE_X_TOOLKIT=none ;;
1618 no ) USE_X_TOOLKIT=none ;;
1619 dnl If user did not say whether to use a toolkit, make this decision later:
1620 dnl use the toolkit if we have gtk, or X11R5 or newer.
1621 * ) USE_X_TOOLKIT=maybe ;;
1625 term_header=nsterm.h
1628 term_header=w32term.h
1632 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1633 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1634 if test "$HAVE_XSERVER" = true ||
1635 test -n "$DISPLAY" ||
1636 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1637 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1638 were found. You should install the relevant development files for X
1639 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1640 sure you have development files for image handling, i.e.
1641 tiff, gif, jpeg, png and xpm.
1642 If you are sure you want Emacs compiled without X window support, pass
1648 ### If we're using X11, we should use the X menu package.
1651 yes ) HAVE_MENUS=yes ;;
1654 # Does the opsystem file prohibit the use of the GNU malloc?
1655 # Assume not, until told otherwise.
1659 [whether malloc is Doug Lea style],
1660 [emacs_cv_var_doug_lea_malloc],
1663 [[#include <malloc.h>
1664 static void hook (void) {}]],
1665 [[malloc_set_state (malloc_get_state ());
1666 __after_morecore_hook = hook;
1667 __malloc_initialize_hook = hook;]])],
1668 [emacs_cv_var_doug_lea_malloc=yes],
1669 [emacs_cv_var_doug_lea_malloc=no])])
1670 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1673 dnl See comments in aix4-2.h about maybe using system malloc there.
1676 ## darwin ld insists on the use of malloc routines in the System framework.
1677 darwin|sol2-10) system_malloc=yes ;;
1680 if test "${system_malloc}" = "yes"; then
1681 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1684 (The GNU allocators don't work with this system configuration.)"
1688 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1689 VMLIMIT_OBJ=vm-limit.o
1691 AC_CHECK_HEADERS([sys/vlimit.h])
1692 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1695 [[extern char data_start[]; char ch;]],
1696 [[return data_start < &ch;]])],
1697 [emacs_cv_data_start=yes],
1698 [emacs_cv_data_start=no])])
1699 if test $emacs_cv_data_start = yes; then
1700 AC_DEFINE([HAVE_DATA_START], 1,
1701 [Define to 1 if data_start is the address of the start
1702 of the main data segment.])
1705 AC_SUBST(GMALLOC_OBJ)
1706 AC_SUBST(VMLIMIT_OBJ)
1708 if test "$doug_lea_malloc" = "yes" ; then
1709 if test "$GNU_MALLOC" = yes ; then
1711 (Using Doug Lea's new malloc from the GNU C Library.)"
1713 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1714 [Define to 1 if you are using the GNU C Library.])
1716 ## Use mmap directly for allocating larger buffers.
1717 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1718 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1719 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1721 gnu*) REL_ALLOC=no ;;
1725 if test x"${REL_ALLOC}" = x; then
1726 REL_ALLOC=${GNU_MALLOC}
1729 use_mmap_for_buffers=no
1731 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1735 if test $use_mmap_for_buffers = yes; then
1736 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1740 LIBS="$LIBS_SYSTEM $LIBS"
1742 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1743 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1744 AC_CHECK_LIB(dnet, dnet_ntoa)
1745 dnl This causes -lresolv to get used in subsequent tests,
1746 dnl which causes failures on some systems such as HPUX 9.
1747 dnl AC_CHECK_LIB(resolv, gethostbyname)
1749 dnl FIXME replace main with a function we actually want from this library.
1750 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1752 dnl Check if pthreads is available.
1754 AC_CHECK_HEADERS_ONCE(pthread.h)
1755 if test "$ac_cv_header_pthread_h"; then
1756 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1757 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1758 dnl testing for pthread_self if Emacs uses gmalloc.c.
1759 if test "$GMALLOC_OBJ" = gmalloc.o; then
1760 emacs_pthread_function=pthread_atfork
1762 emacs_pthread_function=pthread_self
1764 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1766 if test "$HAVE_PTHREAD" = yes; then
1767 case "${canonical}" in
1769 *) LIB_PTHREAD="-lpthread"
1770 LIBS="$LIB_PTHREAD $LIBS" ;;
1772 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1774 AC_SUBST([LIB_PTHREAD])
1776 AC_CHECK_LIB(pthreads, cma_open)
1778 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1779 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1780 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1781 ## added to LIBS in configure would never contain the pthreads part,
1782 ## but the value used in Makefiles might. FIXME?
1784 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1785 ## be harmless on older versions of X where it happens to exist.
1786 test "$opsys" = "aix4-2" && \
1787 test $ac_cv_lib_pthreads_cma_open = yes && \
1788 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1790 dnl Check for need for bigtoc support on IBM AIX
1794 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1796 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1797 *) gdb_cv_bigtoc=-bbigtoc ;;
1800 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1801 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1806 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1807 # used for the tests that follow. We set them back to REAL_CFLAGS and
1808 # REAL_CPPFLAGS later on.
1810 REAL_CFLAGS="$CFLAGS"
1811 REAL_CPPFLAGS="$CPPFLAGS"
1813 if test "${HAVE_X11}" = "yes"; then
1814 DEFS="$C_SWITCH_X_SITE $DEFS"
1815 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1817 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1818 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1820 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1821 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1822 # but it's more convenient here to set LD_RUN_PATH since this
1823 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1824 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1825 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1829 if test "${opsys}" = "gnu-linux"; then
1830 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1831 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1832 [[XOpenDisplay ("foo");]])],
1833 [xgnu_linux_first_failure=no],
1834 [xgnu_linux_first_failure=yes])
1835 if test "${xgnu_linux_first_failure}" = "yes"; then
1836 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1837 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1838 OLD_CPPFLAGS="$CPPFLAGS"
1840 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1841 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1842 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1843 LIBS="$LIBS -b i486-linuxaout"
1844 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1845 [[XOpenDisplay ("foo");]])],
1846 [xgnu_linux_second_failure=no],
1847 [xgnu_linux_second_failure=yes])
1848 if test "${xgnu_linux_second_failure}" = "yes"; then
1849 # If we get the same failure with -b, there is no use adding -b.
1850 # So take it out. This plays safe.
1851 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1852 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1853 CPPFLAGS="$OLD_CPPFLAGS"
1864 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1865 # header files included from there.
1866 AC_MSG_CHECKING(for Xkb)
1867 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1868 #include <X11/XKBlib.h>]],
1869 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1870 emacs_xkb=yes, emacs_xkb=no)
1871 AC_MSG_RESULT($emacs_xkb)
1872 if test $emacs_xkb = yes; then
1873 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
1876 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1877 XScreenNumberOfScreen)
1880 if test "${window_system}" = "x11"; then
1881 AC_MSG_CHECKING(X11 version 6)
1882 AC_CACHE_VAL(emacs_cv_x11_version_6,
1883 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1884 [[#if XlibSpecificationRelease < 6
1887 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1888 if test $emacs_cv_x11_version_6 = yes; then
1889 AC_MSG_RESULT(6 or newer)
1890 AC_DEFINE(HAVE_X11R6, 1,
1891 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1892 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1893 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1897 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1898 [Define if you have usable X11R6-style XIM support.])
1902 AC_MSG_RESULT(before 6)
1907 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1909 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
1910 if test "${with_rsvg}" != "no"; then
1911 RSVG_REQUIRED=2.11.0
1912 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1914 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1915 AC_SUBST(RSVG_CFLAGS)
1918 if test $HAVE_RSVG = yes; then
1919 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1920 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1921 LIBS="$RSVG_LIBS $LIBS"
1927 if test "${HAVE_X11}" = "yes"; then
1928 if test "${with_imagemagick}" != "no"; then
1929 ## 6.2.8 is the earliest version known to work, but earlier versions
1930 ## might work - let us know if you find one.
1931 ## 6.0.7 does not work. See bug#7955.
1932 ## 6.8.2 makes Emacs crash; see Bug#13867.
1933 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
1934 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1935 AC_SUBST(IMAGEMAGICK_CFLAGS)
1936 AC_SUBST(IMAGEMAGICK_LIBS)
1938 if test $HAVE_IMAGEMAGICK = yes; then
1939 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1940 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1941 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1942 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1952 if test "${opsys}" != "mingw32"; then
1953 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1956 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1958 dnl Checks for libraries.
1959 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1960 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1961 AC_MSG_ERROR($GTK_PKG_ERRORS)
1963 if test "$pkg_check_gtk" = "yes"; then
1964 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1965 GTK_OBJ=emacsgtkfixed.o
1966 term_header=gtkutil.h
1967 USE_GTK_TOOLKIT="GTK3"
1968 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
1969 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
1973 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1977 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1980 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1982 dnl Checks for libraries.
1983 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1984 if test "$pkg_check_gtk" = "no" &&
1985 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1987 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1989 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
1993 if test x"$pkg_check_gtk" = xyes; then
1995 AC_SUBST(GTK_CFLAGS)
1997 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
1998 CFLAGS="$CFLAGS $GTK_CFLAGS"
1999 LIBS="$GTK_LIBS $LIBS"
2000 dnl Try to compile a simple GTK program.
2002 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2003 if test "${GTK_COMPILES}" != "yes"; then
2004 if test "$USE_X_TOOLKIT" != "maybe"; then
2005 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2009 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2010 GTK_OBJ="gtkutil.o $GTK_OBJ"
2012 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2015 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2016 closing open displays. This is no problem if you just use
2017 one display, but if you use more than one and close one of them
2027 if test "${HAVE_GTK}" = "yes"; then
2029 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2030 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2031 if test "$with_toolkit_scroll_bars" != no; then
2032 with_toolkit_scroll_bars=yes
2035 dnl Check if we have the old file selection dialog declared and
2036 dnl in the link library. In 2.x it may be in the library,
2037 dnl but not declared if deprecated featured has been selected out.
2038 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2039 HAVE_GTK_FILE_SELECTION=no
2040 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2041 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2042 #include <gtk/gtk.h>])
2043 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2044 AC_CHECK_FUNCS(gtk_file_selection_new)
2047 dnl Same as above for gtk_handle_box.
2048 HAVE_GTK_HANDLE_BOX=no
2049 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2050 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2051 #include <gtk/gtk.h>])
2052 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2053 AC_CHECK_FUNCS(gtk_handle_box_new)
2056 dnl Same as above for gtk_tearoff_menu_item.
2057 HAVE_GTK_TEAROFF_MENU_ITEM=no
2058 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2059 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2060 #include <gtk/gtk.h>])
2061 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2062 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2065 dnl Check for functions introduced in 2.14 and later.
2066 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2067 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2068 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2069 gtk_orientable_set_orientation \
2070 gtk_window_set_has_resize_grip)
2072 term_header=gtkutil.h
2075 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2076 dnl other platforms.
2079 if test "${with_dbus}" = "yes"; then
2080 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2081 if test "$HAVE_DBUS" = yes; then
2082 LIBS="$LIBS $DBUS_LIBS"
2083 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2084 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2085 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2087 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2088 dbus_type_is_valid \
2089 dbus_validate_bus_name \
2090 dbus_validate_path \
2091 dbus_validate_interface \
2092 dbus_validate_member)
2098 dnl GSettings has been tested under GNU/Linux only.
2100 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2101 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2102 if test "$HAVE_GSETTINGS" = "yes"; then
2103 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2104 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2105 SETTINGS_LIBS="$GSETTINGS_LIBS"
2109 dnl GConf has been tested under GNU/Linux only.
2110 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2112 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2113 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2114 if test "$HAVE_GCONF" = yes; then
2115 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2116 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2117 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2118 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2122 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2123 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2124 if test "$HAVE_GOBJECT" = "yes"; then
2125 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2126 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2128 SAVE_CFLAGS="$CFLAGS"
2130 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2131 LIBS="$SETTINGS_LIBS $LIBS"
2132 AC_CHECK_FUNCS([g_type_init])
2133 CFLAGS="$SAVE_CFLAGS"
2136 AC_SUBST(SETTINGS_CFLAGS)
2137 AC_SUBST(SETTINGS_LIBS)
2140 dnl SELinux is available for GNU/Linux only.
2143 if test "${with_selinux}" = "yes"; then
2144 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2145 if test "$HAVE_LIBSELINUX" = yes; then
2146 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2147 LIBSELINUX_LIBS=-lselinux
2150 AC_SUBST(LIBSELINUX_LIBS)
2153 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2154 if test "${with_gnutls}" = "yes" ; then
2155 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2156 if test "${HAVE_GNUTLS}" = "yes"; then
2157 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2162 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2163 LIBS="$LIBGNUTLS_LIBS $LIBS"
2164 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2166 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2167 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2170 # Windows loads GnuTLS dynamically
2171 if test "${opsys}" = "mingw32"; then
2178 AC_SUBST(LIBGNUTLS_LIBS)
2179 AC_SUBST(LIBGNUTLS_CFLAGS)
2181 dnl inotify is only available on GNU/Linux.
2182 if test "${with_inotify}" = "yes"; then
2183 AC_CHECK_HEADERS(sys/inotify.h)
2184 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2185 AC_CHECK_FUNC(inotify_init1)
2188 if test "$ac_cv_func_inotify_init1" = yes; then
2189 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2192 dnl POSIX ACL support: provided by libacl on GNU/Linux, by libc on FreeBSD.
2195 if test "${with_acl}" = "yes"; then
2196 AC_CHECK_LIB([acl], [acl_set_file], HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2197 if test "$HAVE_POSIX_ACL" = yes; then
2198 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2201 AC_CHECK_FUNC(acl_set_file, HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2202 if test "$HAVE_POSIX_ACL" = yes; then
2203 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2207 AC_SUBST(LIBACL_LIBS)
2209 dnl Do not put whitespace before the #include statements below.
2210 dnl Older compilers (eg sunos4 cc) choke on it.
2213 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2214 if test "$with_xaw3d" != no; then
2215 AC_CACHE_VAL(emacs_cv_xaw3d,
2216 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2217 #include <X11/Intrinsic.h>
2218 #include <X11/Xaw3d/Simple.h>]],
2220 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2221 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2222 emacs_cv_xaw3d=no)])
2226 if test $emacs_cv_xaw3d = yes; then
2227 AC_MSG_CHECKING(for xaw3d)
2228 AC_MSG_RESULT([yes; using Lucid toolkit])
2232 AC_DEFINE(HAVE_XAW3D, 1,
2233 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2235 AC_MSG_CHECKING(for xaw3d)
2237 AC_MSG_CHECKING(for libXaw)
2238 AC_CACHE_VAL(emacs_cv_xaw,
2239 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2240 #include <X11/Intrinsic.h>
2241 #include <X11/Xaw/Simple.h>]],
2245 if test $emacs_cv_xaw = yes; then
2246 AC_MSG_RESULT([yes; using Lucid toolkit])
2249 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2250 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2252 AC_MSG_ERROR([No X toolkit could be found.
2253 If you are sure you want Emacs compiled without an X toolkit, pass
2255 to configure. Otherwise, install the development libraries for the toolkit
2256 that you want to use (e.g. Gtk+) and re-run configure.])
2261 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2264 if test "${USE_X_TOOLKIT}" != "none"; then
2265 AC_MSG_CHECKING(X11 toolkit version)
2266 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2267 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2268 [[#if XtSpecificationRelease < 6
2271 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2272 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2273 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2274 AC_MSG_RESULT(6 or newer)
2275 AC_DEFINE(HAVE_X11XTR6, 1,
2276 [Define to 1 if you have the X11R6 or newer version of Xt.])
2277 LIBXTR6="-lSM -lICE"
2279 ## Use libw.a along with X11R6 Xt.
2280 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2283 AC_MSG_RESULT(before 6)
2286 dnl If using toolkit, check whether libXmu.a exists.
2287 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2289 if test x$HAVE_X11XTR6 = xyes; then
2290 LIBS="-lXt -lSM -lICE $LIBS"
2294 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2295 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2296 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2300 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2301 dnl Why not just test for libxmu in the normal way?
2304 ## These systems don't supply Xmu.
2306 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2314 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2315 if test "${HAVE_X11}" = "yes"; then
2316 if test "${USE_X_TOOLKIT}" != "none"; then
2317 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2322 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2323 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2324 if test -d /usr/include/openmotif; then
2325 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2326 emacs_cv_openmotif=yes
2327 case "$canonical" in
2328 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2329 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2332 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2335 emacs_cv_openmotif=no
2337 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2338 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2339 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2342 Motif version prior to 2.1.
2344 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2345 if test $emacs_cv_motif_version_2_1 = yes; then
2346 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2347 if test x$emacs_cv_openmotif = xyes; then
2348 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2351 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2352 # We put this in CFLAGS temporarily to precede other -I options
2353 # that might be in CFLAGS temporarily.
2354 # We put this in CPPFLAGS where it precedes the other -I options.
2355 OLD_CPPFLAGS=$CPPFLAGS
2357 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2358 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2359 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2361 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2362 if test $emacs_cv_lesstif = yes; then
2363 # Make sure this -I option remains in CPPFLAGS after it is set
2364 # back to REAL_CPPFLAGS.
2365 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2366 # have those other -I options anyway. Ultimately, having this
2367 # directory ultimately in CPPFLAGS will be enough.
2368 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2369 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2372 CPPFLAGS=$OLD_CPPFLAGS
2375 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2376 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2379 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2380 dnl using Motif or Xaw3d is available, and unless
2381 dnl --with-toolkit-scroll-bars=no was specified.
2383 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2384 [Define to 1 if we should use toolkit scroll bars.])dnl
2385 USE_TOOLKIT_SCROLL_BARS=no
2386 if test "${with_toolkit_scroll_bars}" != "no"; then
2387 if test "${USE_X_TOOLKIT}" != "none"; then
2388 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2389 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2391 USE_TOOLKIT_SCROLL_BARS=yes
2392 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2393 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2394 USE_TOOLKIT_SCROLL_BARS=yes
2396 elif test "${HAVE_GTK}" = "yes"; then
2397 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2398 USE_TOOLKIT_SCROLL_BARS=yes
2399 elif test "${HAVE_NS}" = "yes"; then
2400 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2401 USE_TOOLKIT_SCROLL_BARS=yes
2402 elif test "${HAVE_W32}" = "yes"; then
2403 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2404 USE_TOOLKIT_SCROLL_BARS=yes
2408 dnl See if XIM is available.
2409 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2410 #include <X11/Xlib.h>
2411 #include <X11/Xresource.h>]],
2412 [[XIMProc callback;]])],
2414 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2417 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2419 if test "${with_xim}" != "no"; then
2420 AC_DEFINE(USE_XIM, 1,
2421 [Define to 1 if we should use XIM, if it is available.])
2425 if test "${HAVE_XIM}" != "no"; then
2427 if test "$GCC" = yes; then
2428 CFLAGS="$CFLAGS --pedantic-errors"
2430 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2431 #include <X11/Xlib.h>
2432 #include <X11/Xresource.h>]],
2438 XPointer *client_data;
2440 /* If we're not using GCC, it's probably not XFree86, and this is
2441 probably right, but we can't use something like --pedantic-errors. */
2442 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2443 char*, XIMProc, XPointer*);
2445 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2447 [emacs_cv_arg6_star=yes])
2448 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2449 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2450 either XPointer or XPointer*.])dnl
2451 if test "$emacs_cv_arg6_star" = yes; then
2452 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2454 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2459 ### Start of font-backend (under any platform) section.
2460 # (nothing here yet -- this is a placeholder)
2461 ### End of font-backend (under any platform) section.
2463 ### Start of font-backend (under X11) section.
2464 if test "${HAVE_X11}" = "yes"; then
2465 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2467 ## Use -lXft if available, unless `--with-xft=no'.
2469 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2472 if test "x${with_xft}" != "xno"; then
2474 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2475 ## Because xftfont.c uses XRenderQueryExtension, we also
2476 ## need to link to -lXrender.
2478 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2479 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2480 OLD_CPPFLAGS="$CPPFLAGS"
2481 OLD_CFLAGS="$CFLAGS"
2483 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2484 CFLAGS="$CFLAGS $XFT_CFLAGS"
2485 XFT_LIBS="-lXrender $XFT_LIBS"
2486 LIBS="$XFT_LIBS $LIBS"
2487 AC_CHECK_HEADER(X11/Xft/Xft.h,
2488 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2490 if test "${HAVE_XFT}" = "yes"; then
2491 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2493 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2495 CPPFLAGS="$OLD_CPPFLAGS"
2496 CFLAGS="$OLD_CFLAGS"
2498 fi # "${HAVE_XFT}" = "yes"
2499 fi # "$HAVE_XFT" != no
2500 fi # "x${with_xft}" != "xno"
2502 ## We used to allow building with FreeType and without Xft.
2503 ## However, the ftx font backend driver is not in good shape.
2504 if test "$HAVE_XFT" != "yes"; then
2505 dnl For the "Does Emacs use" message at the end.
2509 dnl Strict linkers fail with
2510 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2511 dnl if -lfreetype is not specified.
2512 dnl The following is needed to set FREETYPE_LIBS.
2513 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2516 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2520 if test "${HAVE_FREETYPE}" = "yes"; then
2521 AC_DEFINE(HAVE_FREETYPE, 1,
2522 [Define to 1 if using the freetype and fontconfig libraries.])
2523 if test "${with_libotf}" != "no"; then
2524 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2526 if test "$HAVE_LIBOTF" = "yes"; then
2527 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2528 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2529 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2530 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2531 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2532 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2533 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2537 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2538 dnl Does the new font backend require it, or can it work without it?
2542 if test "${HAVE_LIBOTF}" = yes; then
2543 if test "${with_m17n_flt}" != "no"; then
2544 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2545 if test "$HAVE_M17N_FLT" = "yes"; then
2546 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2557 ### End of font-backend (under X11) section.
2559 AC_SUBST(FREETYPE_CFLAGS)
2560 AC_SUBST(FREETYPE_LIBS)
2561 AC_SUBST(FONTCONFIG_CFLAGS)
2562 AC_SUBST(FONTCONFIG_LIBS)
2563 AC_SUBST(LIBOTF_CFLAGS)
2564 AC_SUBST(LIBOTF_LIBS)
2565 AC_SUBST(M17N_FLT_CFLAGS)
2566 AC_SUBST(M17N_FLT_LIBS)
2568 ### Use -lXpm if available, unless `--with-xpm=no'.
2569 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2572 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2573 if test "${with_xpm}" != "no"; then
2574 SAVE_CPPFLAGS="$CPPFLAGS"
2575 SAVE_LDFLAGS="$LDFLAGS"
2576 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2577 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2578 AC_CHECK_HEADER(X11/xpm.h,
2579 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2580 if test "${HAVE_XPM}" = "yes"; then
2581 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2582 AC_EGREP_CPP(no_return_alloc_pixels,
2583 [#include "X11/xpm.h"
2584 #ifndef XpmReturnAllocPixels
2585 no_return_alloc_pixels
2587 ], HAVE_XPM=no, HAVE_XPM=yes)
2589 if test "${HAVE_XPM}" = "yes"; then
2590 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2594 CPPFLAGS="$SAVE_CPPFLAGS"
2595 LDFLAGS="$SAVE_LDFLAGS"
2600 if test "${HAVE_XPM}" = "yes"; then
2601 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2606 if test "${HAVE_X11}" = "yes"; then
2607 if test "${with_xpm}" != "no"; then
2608 AC_CHECK_HEADER(X11/xpm.h,
2609 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2610 if test "${HAVE_XPM}" = "yes"; then
2611 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2612 AC_EGREP_CPP(no_return_alloc_pixels,
2613 [#include "X11/xpm.h"
2614 #ifndef XpmReturnAllocPixels
2615 no_return_alloc_pixels
2617 ], HAVE_XPM=no, HAVE_XPM=yes)
2619 if test "${HAVE_XPM}" = "yes"; then
2627 if test "${HAVE_XPM}" = "yes"; then
2628 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2633 if test "${opsys}" = "mingw32"; then
2634 if test "${with_xpm}" != "no"; then
2635 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2639 if test "${HAVE_XPM}" = "yes"; then
2640 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2646 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2647 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2650 if test "${opsys}" = "mingw32"; then
2651 if test "${with_jpeg}" != "no"; then
2652 dnl Checking for jpeglib.h can lose because of a redefinition of
2654 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2656 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2657 if test "${HAVE_JPEG}" = "yes"; then
2658 AC_DEFINE(HAVE_JPEG)
2659 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2660 [#include <jpeglib.h>
2661 version=JPEG_LIB_VERSION
2663 [AC_DEFINE(HAVE_JPEG)],
2664 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2667 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2668 if test "${with_jpeg}" != "no"; then
2669 dnl Checking for jpeglib.h can lose because of a redefinition of
2671 AC_CHECK_HEADER(jerror.h,
2672 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2675 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2676 if test "${HAVE_JPEG}" = "yes"; then
2677 AC_DEFINE(HAVE_JPEG)
2678 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2679 [#include <jpeglib.h>
2680 version=JPEG_LIB_VERSION
2682 [AC_DEFINE(HAVE_JPEG)],
2683 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2686 if test "${HAVE_JPEG}" = "yes"; then
2692 ### Use -lpng if available, unless `--with-png=no'.
2693 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2696 if test "${opsys}" = "mingw32"; then
2697 if test "${with_png}" != "no"; then
2698 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2700 if test "${HAVE_PNG}" = "yes"; then
2701 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2703 AC_CHECK_DECL(png_longjmp,
2705 [AC_DEFINE(PNG_DEPSTRUCT, [],
2706 [Define to empty to suppress deprecation warnings when building
2707 with --enable-gcc-warnings and with libpng versions before 1.5,
2708 which lack png_longjmp.])],
2709 [[#ifdef HAVE_LIBPNG_PNG_H
2710 # include <libpng/png.h>
2716 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2717 if test "${with_png}" != "no"; then
2718 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2719 # in /usr/include/libpng.
2720 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2721 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2722 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2726 if test "${HAVE_PNG}" = "yes"; then
2727 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2728 LIBPNG="-lpng -lz -lm"
2730 AC_CHECK_DECL(png_longjmp,
2732 [AC_DEFINE(PNG_DEPSTRUCT, [],
2733 [Define to empty to suppress deprecation warnings when building
2734 with --enable-gcc-warnings and with libpng versions before 1.5,
2735 which lack png_longjmp.])],
2736 [[#ifdef HAVE_LIBPNG_PNG_H
2737 # include <libpng/png.h>
2746 ### Use -ltiff if available, unless `--with-tiff=no'.
2747 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
2750 if test "${opsys}" = "mingw32"; then
2751 if test "${with_tiff}" != "no"; then
2752 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
2754 if test "${HAVE_TIFF}" = "yes"; then
2755 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2757 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2758 if test "${with_tiff}" != "no"; then
2759 AC_CHECK_HEADER(tiffio.h,
2761 # At least one tiff package requires the jpeg library.
2762 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2763 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2766 if test "${HAVE_TIFF}" = "yes"; then
2767 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2768 dnl FIXME -lz -lm, as per libpng?
2774 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2775 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
2778 if test "${opsys}" = "mingw32"; then
2779 if test "${with_gif}" != "no"; then
2780 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
2782 if test "${HAVE_GIF}" = "yes"; then
2783 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2785 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2786 || test "${HAVE_W32}" = "yes"; then
2787 AC_CHECK_HEADER(gif_lib.h,
2788 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2789 # Earlier versions can crash Emacs.
2790 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2792 if test "$HAVE_GIF" = yes; then
2794 elif test "$HAVE_GIF" = maybe; then
2795 # If gif_lib.h but no libgif, try libungif.
2796 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2797 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2800 if test "${HAVE_GIF}" = "yes"; then
2801 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2806 dnl Check for required libraries.
2807 if test "${HAVE_X11}" = "yes"; then
2810 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2811 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2812 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2813 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2814 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2815 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2816 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2817 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2818 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2819 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2821 if test "X${MISSING}" != X; then
2822 AC_MSG_ERROR([The following required libraries were not found:
2824 Maybe some development libraries/packages are missing?
2825 If you don't want to link with them give
2827 as options to configure])
2831 ### Use -lgpm if available, unless `--with-gpm=no'.
2834 if test "${with_gpm}" != "no"; then
2835 AC_CHECK_HEADER(gpm.h,
2836 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2838 if test "${HAVE_GPM}" = "yes"; then
2839 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2845 dnl Check for malloc/malloc.h on darwin
2846 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2849 ### Use NeXTstep API to implement GUI.
2850 if test "${HAVE_NS}" = "yes"; then
2851 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2852 if test "${NS_IMPL_COCOA}" = "yes"; then
2853 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2855 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2856 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2857 # See also .m.o rule in Makefile.in */
2858 # FIXME: are all these flags really needed? Document here why. */
2859 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2860 ## Extra CFLAGS applied to src/*.m files.
2861 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"
2863 # We also have mouse menus.
2868 if test "${HAVE_W32}" = "yes"; then
2872 ### Use session management (-lSM -lICE) if available
2875 if test "${HAVE_X11}" = "yes"; then
2876 AC_CHECK_HEADER(X11/SM/SMlib.h,
2877 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2879 if test "${HAVE_X_SM}" = "yes"; then
2880 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2884 *) LIBS="$LIBXSM $LIBS" ;;
2890 ### Use libxml (-lxml2) if available
2891 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
2893 if test "${with_xml2}" != "no"; then
2894 ### I'm not sure what the version number should be, so I just guessed.
2895 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2896 if test "${HAVE_LIBXML2}" = "yes"; then
2897 if test "${opsys}" != "mingw32"; then
2898 LIBS="$LIBXML2_LIBS $LIBS"
2899 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2903 if test "${HAVE_LIBXML2}" = "yes"; then
2904 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2911 AC_SUBST(LIBXML2_LIBS)
2912 AC_SUBST(LIBXML2_CFLAGS)
2914 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2915 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
2916 if test "${opsys}" = "mingw32"; then
2917 emacs_cv_netdb_declares_h_errno=yes
2919 AC_CACHE_CHECK(whether netdb declares h_errno,
2920 emacs_cv_netdb_declares_h_errno,
2921 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2922 [[return h_errno;]])],
2923 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2924 if test $emacs_cv_netdb_declares_h_errno = yes; then
2925 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2928 # sqrt and other floating-point functions such as fmod and frexp
2929 # are found in -lm on most systems, but mingw32 doesn't use -lm.
2930 if test "${opsys}" != "mingw32"; then
2931 AC_CHECK_LIB(m, sqrt)
2934 # Check for mail-locking functions in a "mail" library. Probably this should
2935 # have the same check as for liblockfile below.
2936 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2937 if test $have_mail = yes; then
2939 LIBS="$LIBS_MAIL $LIBS"
2940 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2944 dnl Debian, at least:
2945 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2946 if test $have_lockfile = yes; then
2947 LIBS_MAIL=-llockfile
2948 LIBS="$LIBS_MAIL $LIBS"
2949 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2951 # If we have the shared liblockfile, assume we must use it for mail
2952 # locking (e.g. Debian). If we couldn't link against liblockfile
2953 # (no liblockfile.a installed), ensure that we don't need to.
2954 dnl This works for files generally, not just executables.
2955 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2956 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2957 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2958 if test $ac_cv_prog_liblockfile = yes; then
2959 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2960 This probably means that movemail could lose mail.
2961 There may be a `development' package to install containing liblockfile.])
2964 AC_CHECK_HEADERS_ONCE(maillock.h)
2967 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2968 ## interlock access to the mail spool. The alternative is a lock file named
2969 ## /usr/spool/mail/$USER.lock.
2972 aix4-2) mail_lock="lockf" ;;
2974 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2976 ## On GNU/Linux systems, both methods are used by various mail programs.
2977 ## I assume most people are using newer mailers that have heard of flock.
2978 ## Change this if you need to.
2979 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2980 ## configure gets the right answers, and that means *NOT* using flock.
2981 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2982 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2983 ## Debian maintainer hasn't provided a clean fix for Emacs.
2984 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2985 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2986 ## correct logic. -- fx
2987 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2988 ## liblockfile is a Free Software replacement for libmail, used on
2989 ## Debian systems and elsewhere. -rfr.
2992 if test $have_mail = yes || test $have_lockfile = yes; then
2993 test $ac_cv_header_maillock_h = yes && mail_lock=no
2999 case "$mail_lock" in
3000 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3002 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3004 *) BLESSMAIL_TARGET="need-blessmail" ;;
3006 AC_SUBST(BLESSMAIL_TARGET)
3009 AC_CHECK_FUNCS(gethostname \
3010 getrusage get_current_dir_name \
3012 select getpagesize setlocale \
3013 utimes getrlimit setrlimit shutdown getaddrinfo \
3014 strsignal setitimer \
3015 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3016 gai_strerror mkstemp getline getdelim sync \
3017 difftime posix_memalign \
3018 getpwent endpwent getgrent endgrent \
3020 cfmakeraw cfsetspeed copysign __executable_start)
3022 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3023 ## has a broken `rint' in some library versions including math library
3024 ## version number A.09.05.
3025 ## You can fix the math library by installing patch number PHSS_4630.
3026 ## But we can fix it more reliably for Emacs by just not using rint.
3027 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3030 *) AC_CHECK_FUNCS(random rint) ;;
3033 dnl Cannot use AC_CHECK_FUNCS
3034 AC_CACHE_CHECK([for __builtin_unwind_init],
3035 emacs_cv_func___builtin_unwind_init,
3036 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3037 emacs_cv_func___builtin_unwind_init=yes,
3038 emacs_cv_func___builtin_unwind_init=no)])
3039 if test $emacs_cv_func___builtin_unwind_init = yes; then
3040 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3041 [Define to 1 if you have the `__builtin_unwind_init' function.])
3044 AC_CHECK_HEADERS_ONCE(sys/un.h)
3049 AC_CHECK_FUNCS(grantpt)
3051 # PTY-related GNU extensions.
3052 AC_CHECK_FUNCS(getpt posix_openpt)
3054 # Check this now, so that we will NOT find the above functions in ncurses.
3055 # That is because we have not set up to link ncurses in lib-src.
3056 # It's better to believe a function is not available
3057 # than to expect to find it in ncurses.
3058 # Also we need tputs and friends to be able to build at all.
3059 AC_MSG_CHECKING([for library containing tputs])
3060 # Run a test program that contains a call to tputs, a call that is
3061 # never executed. This tests whether a pre-'main' dynamic linker
3062 # works with the library. It's too much trouble to actually call
3063 # tputs in the test program, due to portability hassles. When
3064 # cross-compiling, assume the test program will run if it links.
3065 AC_DEFUN([tputs_link_source], [
3067 [[extern void tputs (const char *, int, int (*)(int));
3068 int main (int argc, char **argv)
3071 tputs (argv[0], 0, 0);
3075 if test "${opsys}" = "mingw32"; then
3078 # Maybe curses should be tried earlier?
3079 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3080 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3082 if test -z "$tputs_library"; then
3086 LIBS_TERMCAP=-l$tputs_library
3088 LIBS="$LIBS_TERMCAP $LIBS"
3090 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3091 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3093 if test "X$msg" != Xno; then
3098 AC_MSG_RESULT([$msg])
3099 if test "X$msg" = Xno; then
3100 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3101 The following libraries were tried (in order):
3102 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3103 Please try installing whichever of these libraries is most appropriate
3104 for your system, together with its header files.
3105 For example, a libncurses-dev(el) or similar package.])
3108 ## Use termcap instead of terminfo?
3109 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3111 ## FIXME? In the cases below where we unconditionally set
3112 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3113 ## if that was found above to have tputs.
3114 ## Should we use the gnu* logic everywhere?
3116 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3117 ## The ncurses library has been moved out of the System framework in
3118 ## Mac OS X 10.2. So if configure detects it, set the command-line
3119 ## option to use it.
3120 darwin) LIBS_TERMCAP="-lncurses" ;;
3122 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3125 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3126 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3127 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3128 [[#if __FreeBSD_version < 400000
3131 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3133 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3135 if test $emacs_cv_freebsd_terminfo = yes; then
3136 LIBS_TERMCAP="-lncurses"
3139 LIBS_TERMCAP="-ltermcap"
3149 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3151 LIBS_TERMCAP="-ltermcap"
3155 openbsd) LIBS_TERMCAP="-lncurses" ;;
3157 ## hpux: Make sure we get select from libc rather than from libcurses
3158 ## because libcurses on HPUX 10.10 has a broken version of select.
3159 ## We used to use -lc -lcurses, but this may be cleaner.
3160 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3161 # set that way, now it uses the default). Isn't this a contradiction?
3162 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3166 TERMCAP_OBJ=tparam.o
3167 if test $TERMINFO = yes; then
3168 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3169 TERMCAP_OBJ=terminfo.o
3171 AC_SUBST(LIBS_TERMCAP)
3172 AC_SUBST(TERMCAP_OBJ)
3175 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3176 # On Darwin, res_init appears not to be useful: see bug#562 and
3177 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3180 if test $opsys != darwin; then
3182 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3183 #include <arpa/nameser.h>
3184 #include <resolv.h>]],
3185 [[return res_init();]])],
3186 have_res_init=yes, have_res_init=no)
3187 if test "$have_res_init" = no; then
3189 LIBS="$LIBS -lresolv"
3190 AC_MSG_CHECKING(for res_init with -lresolv)
3191 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3192 #include <arpa/nameser.h>
3193 #include <resolv.h>]],
3194 [[return res_init();]])],
3195 have_res_init=yes, have_res_init=no)
3196 AC_MSG_RESULT($have_res_init)
3197 if test "$have_res_init" = yes ; then
3203 if test "$have_res_init" = yes; then
3204 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3208 # Do we need the Hesiod library to provide the support routines?
3209 dnl FIXME? Should we be skipping this on Darwin too?
3211 if test "$with_hesiod" != no ; then
3212 # Don't set $LIBS here -- see comments above. FIXME which comments?
3213 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3214 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3215 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3216 if test "$resolv" = yes ; then
3221 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3222 hesiod=yes, :, $RESOLVLIB)])
3224 if test x"$hesiod" = xyes; then
3225 AC_DEFINE(HAVE_LIBHESIOD, 1,
3226 [Define to 1 if you have the hesiod library (-lhesiod).])
3232 # Do we need libresolv (due to res_init or Hesiod)?
3233 if test "$resolv" = yes && test $opsys != darwin; then
3234 AC_DEFINE(HAVE_LIBRESOLV, 1,
3235 [Define to 1 if you have the resolv library (-lresolv).])
3242 # These tell us which Kerberos-related libraries to use.
3249 if test "${with_kerberos}" != no; then
3250 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3251 if test $have_com_err = yes; then
3252 COM_ERRLIB=-lcom_err
3253 LIBS="$COM_ERRLIB $LIBS"
3254 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3256 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3257 if test $have_crypto = yes; then
3259 LIBS="$CRYPTOLIB $LIBS"
3260 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3262 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3263 if test $have_k5crypto = yes; then
3264 CRYPTOLIB=-lk5crypto
3265 LIBS="$CRYPTOLIB $LIBS"
3266 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3268 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3269 if test $have_krb5=yes; then
3271 LIBS="$KRB5LIB $LIBS"
3272 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3274 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3275 if test "${with_kerberos5}" = no; then
3276 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3277 if test $have_des425 = yes; then
3279 LIBS="$DESLIB $LIBS"
3280 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3282 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3283 if test $have_des = yes; then
3285 LIBS="$DESLIB $LIBS"
3286 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3289 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3290 if test $have_krb4 = yes; then
3292 LIBS="$KRB4LIB $LIBS"
3293 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3295 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3296 if test $have_krb = yes; then
3298 LIBS="$KRB4LIB $LIBS"
3299 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3304 if test "${with_kerberos5}" != no; then
3305 AC_CHECK_HEADERS(krb5.h,
3306 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3307 [#include <krb5.h>])])
3309 AC_CHECK_HEADERS(des.h,,
3310 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3311 [AC_CHECK_HEADERS(kerberos/des.h)])])
3312 AC_CHECK_HEADERS(krb.h,,
3313 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3314 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3316 AC_CHECK_HEADERS(com_err.h)
3319 AC_SUBST(COM_ERRLIB)
3325 AC_CHECK_FUNCS_ONCE(tzset)
3326 AC_MSG_CHECKING(whether localtime caches TZ)
3327 AC_CACHE_VAL(emacs_cv_localtime_cache,
3328 [if test x$ac_cv_func_tzset = xyes; then
3329 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3330 char TZ_GMT0[] = "TZ=GMT0";
3331 char TZ_PST8[] = "TZ=PST8";
3334 time_t now = time ((time_t *) 0);
3335 int hour_GMT0, hour_unset;
3336 if (putenv (TZ_GMT0) != 0)
3338 hour_GMT0 = localtime (&now)->tm_hour;
3340 hour_unset = localtime (&now)->tm_hour;
3341 if (putenv (TZ_PST8) != 0)
3343 if (localtime (&now)->tm_hour == hour_GMT0)
3346 if (localtime (&now)->tm_hour != hour_unset)
3349 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3350 [# If we have tzset, assume the worst when cross-compiling.
3351 emacs_cv_localtime_cache=yes])
3353 # If we lack tzset, report that localtime does not cache TZ,
3354 # since we can't invalidate the cache if we don't have tzset.
3355 emacs_cv_localtime_cache=no
3357 AC_MSG_RESULT($emacs_cv_localtime_cache)
3358 if test $emacs_cv_localtime_cache = yes; then
3359 AC_DEFINE(LOCALTIME_CACHE, 1,
3360 [Define to 1 if localtime caches TZ.])
3364 AC_CHECK_FUNC(socket, , ok_so_far=no)
3365 if test $ok_so_far = yes; then
3366 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3368 if test $ok_so_far = yes; then
3369 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3371 if test $ok_so_far = yes; then
3372 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3373 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3374 [Define to 1 if you have inet sockets.])
3377 if test -f /usr/lpp/X11/bin/smt.exp; then
3378 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3379 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3382 AC_MSG_CHECKING(whether system supports dynamic ptys)
3383 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3385 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3390 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3391 dnl This can be removed once we assume Autoconf 2.70.
3393 *-solaris2.4 | *-solaris2.4.*)
3394 dnl Disable the Autoconf-generated vfork test.
3395 : ${ac_cv_func_vfork_works=no};;
3400 AC_CHECK_FUNCS(snprintf)
3402 dnl Adapted from Haible's version.
3403 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3404 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3405 [[char* cs = nl_langinfo(CODESET);]])],
3406 emacs_cv_langinfo_codeset=yes,
3407 emacs_cv_langinfo_codeset=no)
3409 if test $emacs_cv_langinfo_codeset = yes; then
3410 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3411 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3416 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3417 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3418 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3419 if test "$emacs_cv_c_restrict_arr" = yes; then
3420 AC_DEFINE(__restrict_arr, __restrict,
3421 [Define to compiler's equivalent of C99 restrict keyword in array
3422 declarations. Define as empty for no equivalent.])
3425 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3426 dnl how the tty code is related to POSIX and/or other versions of termios.
3427 dnl The following looks like a useful start.
3429 dnl AC_SYS_POSIX_TERMIOS
3430 dnl if test $ac_cv_sys_posix_termios = yes; then
3431 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3432 dnl and macros for terminal control.])
3433 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3436 dnl Turned on June 1996 supposing nobody will mind it.
3437 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3438 if test "${opsys}" != "mingw32"; then
3439 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3440 in the full name stands for the login id.])
3443 dnl Every platform that uses configure supports this.
3444 dnl There is a create-lockfiles option you can
3445 dnl customize if you do not want the lock files to be written.
3446 dnl So it is not clear that this #define still needs to exist.
3447 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3448 so that Emacs can tell instantly when you try to modify a file that
3449 someone else has modified in his/her Emacs.])
3451 dnl Everybody supports this, except MS.
3452 dnl Seems like the kind of thing we should be testing for, though.
3453 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3454 if test "${opsys}" != "mingw32"; then
3455 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3458 dnl Everybody supports this, except MS-DOS.
3459 dnl Seems like the kind of thing we should be testing for, though.
3460 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3461 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3462 4.2-compatible sockets.])
3464 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3466 if test "${opsys}" = "mingw32"; then
3467 AC_DEFINE(NULL_DEVICE, ["NUL:"], [Name of the file to open to get
3468 a null file, or a data sink.])
3470 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3471 a null file, or a data sink.])
3474 if test "${opsys}" = "mingw32"; then
3475 AC_DEFINE(SEPCHAR, [';'], [Character that separates PATH elements.])
3477 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3480 dnl Everybody supports this, except MS-DOS.
3481 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3483 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3486 AC_DEFINE(DIRECTORY_SEP, ['/'],
3487 [Character that separates directories in a file name.])
3489 if test "${opsys}" = "mingw32"; then
3490 dnl Only used on MS platforms.
3491 AC_DEFINE(DEVICE_SEP, ':', [Character that separates a device in a file name.])
3492 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == DEVICE_SEP)],
3493 [Returns true if character is a device separator.])
3495 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3496 [Returns true if character is a directory separator.])
3498 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3499 [Returns true if character is any form of separator.])
3501 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3503 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3504 [Returns true if character is a device separator.])
3506 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3507 [Returns true if character is a directory separator.])
3509 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3510 [Returns true if character is any form of separator.])
3513 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3517 dnl Unfortunately without libXmu we cannot support EditRes.
3518 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3519 AC_DEFINE(NO_EDITRES, 1)
3524 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3525 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3526 AC_DEFINE(NO_EDITRES, 1)
3532 irix6-5 | sol2* | unixware )
3533 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3534 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3535 dnl need the constant to dimension an array. So wire in the appropriate
3537 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3541 emacs_broken_SIGIO=no
3544 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3545 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3546 hpux* | irix6-5 | openbsd | sol2* | unixware )
3547 emacs_broken_SIGIO=yes
3551 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3552 dnl the way this system works, libc functions that return malloced
3553 dnl memory use the libc malloc implementation. Calling xfree or
3554 dnl xrealloc on the results of such functions results in a crash.
3556 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3557 dnl but that does not currently work on this system.
3559 dnl It is possible to completely override the malloc implementation on
3560 dnl AIX, but that involves putting the malloc functions in a shared
3561 dnl library and setting the MALLOCTYPE environment variable to point to
3562 dnl that shared library.
3564 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3565 dnl to avoid a crash just use the Emacs implementation for that function.
3567 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3568 dnl of this file, so that we do not check for get_current_dir_name
3569 dnl on AIX. But that might be fragile if something else ends
3570 dnl up testing for get_current_dir_name as a dependency.
3571 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3572 get_current_dir_name should not be used.])
3576 dnl Circumvent a bug in FreeBSD. In the following sequence of
3577 dnl writes/reads on a PTY, read(2) returns bogus data:
3579 dnl write(2) 1022 bytes
3580 dnl write(2) 954 bytes, get EAGAIN
3581 dnl read(2) 1024 bytes in process_read_output
3582 dnl read(2) 11 bytes in process_read_output
3584 dnl That is, read(2) returns more bytes than have ever been written
3585 dnl successfully. The 1033 bytes read are the 1022 bytes written
3586 dnl successfully after processing (for example with CRs added if the
3587 dnl terminal is set up that way which it is here). The same bytes will
3588 dnl be seen again in a later read(2), without the CRs.
3589 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3590 work around an issue when reading from a PTY.])
3596 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3597 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3602 darwin | freebsd | netbsd | openbsd )
3603 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3604 close a pty to make it a controlling terminal (it is already a
3605 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3609 dnl FIXME Surely we can test for this rather than hard-code it.
3611 netbsd | openbsd) sound_device="/dev/audio" ;;
3612 *) sound_device="/dev/dsp" ;;
3616 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3617 [Name of the default sound device.])
3620 dnl Emacs can read input using SIGIO and buffering characters itself,
3621 dnl or using CBREAK mode and making C-g cause SIGINT.
3622 dnl The choice is controlled by the variable interrupt_input.
3624 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3626 dnl Emacs uses the presence of the USABLE_SIGIO macro
3627 dnl to indicate whether or not signal-driven I/O is possible. It uses
3628 dnl INTERRUPT_INPUT to decide whether to use it by default.
3630 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3631 dnl CBREAK mode has two disadvantages
3632 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3633 dnl I hear that in system V this problem does not exist.
3634 dnl 2) Control-G causes output to be discarded.
3635 dnl I do not know whether this can be fixed in system V.
3637 dnl Another method of doing input is planned but not implemented.
3638 dnl It would have Emacs fork off a separate process
3639 dnl to read the input and send it to the true Emacs process
3642 darwin | gnu-linux | gnu-kfreebsd )
3643 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3648 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3649 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3650 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3651 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3652 dnl taking float or double parameters.
3654 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3655 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3656 file defines `NeedWidePrototypes' as `NO'.])
3661 dnl Used in process.c, this must be a loop, even if it only runs once.
3662 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3663 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3664 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3665 dnl trying suffixes 0-16.
3666 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3667 first PTY, if PTYs are supported.])
3668 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3669 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3670 end of a PTY, if non-standard.])
3671 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3672 end of a PTY, if non-standard.])
3676 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3677 dnl You allocate a pty by opening /dev/ptc to get the master side.
3678 dnl To get the name of the slave side, you just ttyname() the master side.
3679 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3680 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3684 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3685 dnl multi-line AC_DEFINEs are hard. :(
3686 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)])
3687 AC_DEFINE(PTY_NAME_SPRINTF, [])
3688 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3691 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3693 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3694 dnl Not used, because PTY_ITERATION is defined.
3695 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3696 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3697 dnl But we don't have to block SIGCHLD because it is blocked in the
3698 dnl implementation of grantpt.
3699 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3700 AC_DEFINE(PTY_NAME_SPRINTF, [])
3701 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3705 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3708 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3710 if test "x$ac_cv_func_grantpt" = xyes; then
3711 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3712 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3713 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3714 dnl to prevent sigchld_handler from intercepting the child's death.
3715 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); }])
3716 dnl if HAVE_POSIX_OPENPT
3717 if test "x$ac_cv_func_posix_openpt" = xyes; then
3718 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3719 AC_DEFINE(PTY_NAME_SPRINTF, [])
3721 elif test "x$ac_cv_func_getpt" = xyes; then
3722 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3723 AC_DEFINE(PTY_NAME_SPRINTF, [])
3725 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3728 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3733 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3734 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3735 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3739 dnl It looks like this cannot be right, because it is not a loop.
3740 dnl However, process.c actually does this:
3746 dnl which presumably makes it OK, since irix == sgi (?).
3747 dnl FIXME it seems like this special treatment is unnecessary?
3748 dnl Why can't irix use a single-trip loop like eg cygwin?
3749 AC_DEFINE(PTY_ITERATION, [])
3750 dnl Not used, because PTY_ITERATION is defined.
3751 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3752 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); }])
3753 dnl No need to get the pty name at all.
3754 AC_DEFINE(PTY_NAME_SPRINTF, [])
3755 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3756 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3760 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3761 dnl from intercepting that death. If any child but grantpt's should die
3762 dnl within, it should be caught after sigrelse(2).
3763 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); }])
3767 dnl Comments are as per sol2*.
3768 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); }])
3775 dnl This change means that we don't loop through allocate_pty too
3776 dnl many times in the (rare) event of a failure.
3777 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3778 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3779 dnl Push various streams modules onto a PTY channel. Used in process.c.
3780 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.])
3785 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3786 "typing" a signal character on the pty.])
3789 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3790 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3791 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd | darwin )
3792 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3795 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3796 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3797 gnu-linux | gnu-kfreebsd )
3799 AC_MSG_CHECKING([for signals via characters])
3800 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3801 #include <linux/version.h>
3802 #if LINUX_VERSION_CODE < 0x20400
3803 # error "Linux version too old"
3805 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3807 AC_MSG_RESULT([$emacs_signals_via_chars])
3808 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3813 dnl Used in lisp.h, emacs.c, vm-limit.c
3814 dnl NEWS.18 describes this as "a number which contains
3815 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3816 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3817 stored in a Lisp_Object.])
3818 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3822 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
3823 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
3826 dnl The data segment on this machine always starts at address 0x40000000.
3827 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3830 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3835 AH_TEMPLATE(TAB3, [Undocumented.])
3838 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3840 gnu | freebsd | netbsd | openbsd )
3841 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3842 AC_DEFINE(TAB3, OXTABS)
3845 gnu-linux | gnu-kfreebsd )
3846 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3850 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3851 [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)],
3852 [Mark a secondary stack, like the register stack on the ia64.]), [])
3856 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3857 run_time_remap; for HPUX.])
3862 dnl This won't be used automatically yet. We also need to know, at least,
3863 dnl that the stack is continuous.
3864 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3865 registers relevant for conservative garbage collection in the jmp_buf.])
3869 dnl Not all the architectures are tested, but there are Debian packages
3870 dnl for SCM and/or Guile on them, so the technique must work. See also
3871 dnl comments in alloc.c concerning setjmp and gcc.
3872 dnl Fixme: it's probably safe to just use the GCC conditional below.
3873 gnu-linux | gnu-kfreebsd )
3874 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3875 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3876 || defined __alpha__ || defined __mips__ || defined __s390__ \
3877 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3878 || defined __ia64__ || defined __sh__
3881 # error "setjmp not known to work on this arch"
3883 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
3888 if test x$GCC = xyes; then
3889 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3890 AC_DEFINE(GC_SETJMP_WORKS, 1)
3893 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3894 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3895 AC_DEFINE(GC_SETJMP_WORKS, 1)
3900 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
3901 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3904 [[#include <setjmp.h>
3906 # define _longjmp longjmp
3911 _longjmp (j, 1);]])],
3912 [emacs_cv_func__setjmp=yes],
3913 [emacs_cv_func__setjmp=no])])
3914 if test $emacs_cv_func__setjmp = yes; then
3915 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3917 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3920 [[#include <setjmp.h>
3923 if (! sigsetjmp (j, 1))
3924 siglongjmp (j, 1);]])],
3925 [emacs_cv_func_sigsetjmp=yes],
3926 [emacs_cv_func_sigsetjmp=no])])
3927 if test $emacs_cv_func_sigsetjmp = yes; then
3928 AC_DEFINE([HAVE_SIGSETJMP], 1,
3929 [Define to 1 if sigsetjmp and siglongjmp work.
3930 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3936 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3937 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3938 dnl and this is all we need.
3939 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3946 dnl Used in xfaces.c.
3947 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3948 some systems, where it requires time.h.])
3953 dnl Define symbols to identify the version of Unix this is.
3954 dnl Define all the symbols that apply correctly.
3955 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3956 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3957 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3958 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3959 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3965 dnl This symbol should be defined on AIX Version 3 ???????
3966 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3968 # error "_AIX not defined"
3970 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3974 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3978 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
3979 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
3980 dnl distinguish OS X from pure Darwin.
3981 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3984 gnu-linux | gnu-kfreebsd )
3986 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3992 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3998 AC_DEFINE(USG5_4, [])
3999 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4003 AC_DEFINE(DOS_NT, [])
4004 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4010 AC_DEFINE(USG5_4, [])
4011 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4017 AC_DEFINE(USG5_4, [])
4021 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4024 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4025 emacs_cv_usable_FIONREAD=no
4029 emacs_cv_usable_FIONREAD=yes
4034 [AC_LANG_PROGRAM([[#include <sys/types.h>
4035 #include <sys/ioctl.h>
4037 # include <sys/filio.h>
4040 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4041 [emacs_cv_usable_FIONREAD=yes],
4042 [emacs_cv_usable_FIONREAD=no])
4045 if test $emacs_cv_usable_FIONREAD = yes; then
4046 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4048 if test $emacs_broken_SIGIO = no; then
4049 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4051 [AC_LANG_PROGRAM([[#include <fcntl.h>
4054 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4055 [emacs_cv_usable_SIGIO=yes],
4056 [emacs_cv_usable_SIGIO=no])],
4057 [emacs_cv_usable_SIGIO=yes],
4058 [emacs_cv_usable_SIGIO=no])
4059 if test $emacs_cv_usable_SIGIO = yes; then
4060 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4067 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4068 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4069 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4070 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4072 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4073 G_SLICE environment variable to "always-malloc" at startup, if
4078 dnl It works to open the pty's tty in the parent (Emacs), then
4079 dnl close and reopen it in the child.
4080 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4081 works to open a pty's tty in the parent process, then close and
4082 reopen it in the child.])
4086 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4087 use VSUSP instead of VSWTCH.])
4091 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4096 # Set up the CFLAGS for real compilation, so we can substitute it.
4097 CFLAGS="$REAL_CFLAGS"
4098 CPPFLAGS="$REAL_CPPFLAGS"
4100 ## Hack to detect a buggy GCC version.
4101 if test "x$GCC" = xyes \
4102 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4103 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4104 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4105 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4108 version=$PACKAGE_VERSION
4110 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4111 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4112 [Short copyright string for this version of Emacs.])
4115 ### Specify what sort of things we'll be editing into Makefile and config.h.
4116 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4118 AC_SUBST(configuration)
4123 AC_SUBST(exec_prefix)
4126 AC_SUBST(sharedstatedir)
4127 AC_SUBST(libexecdir)
4132 AC_SUBST(standardlisppath)
4133 AC_SUBST(locallisppath)
4135 AC_SUBST(x_default_search_path)
4137 AC_SUBST(archlibdir)
4142 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4143 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4144 ## end of LIBX_BASE, but nothing ever set it.
4145 AC_SUBST(LD_SWITCH_X_SITE)
4146 AC_SUBST(C_SWITCH_X_SITE)
4147 AC_SUBST(GNUSTEP_CFLAGS)
4149 ## Used in lwlib/Makefile.in.
4150 AC_SUBST(X_TOOLKIT_TYPE)
4152 AC_SUBST(ns_appbindir)
4153 AC_SUBST(ns_appresdir)
4155 AC_SUBST(GNU_OBJC_CFLAGS)
4156 AC_SUBST(OTHER_FILES)
4158 if test -n "${term_header}"; then
4159 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4160 [Define to the header for the built-in window system.])
4163 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4164 [Define to the canonical Emacs configuration name.])
4165 dnl Replace any embedded " characters (bug#13274).
4166 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g"`
4167 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4168 [Define to the options passed to configure.])
4169 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4170 define this to include extra configuration information.])
4174 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4181 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4182 AC_DEFINE(HAVE_X_WINDOWS, 1,
4183 [Define to 1 if you want to use the X window system.])
4185 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4187 if test "$HAVE_XFT" = "yes"; then
4188 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4189 elif test "$HAVE_FREETYPE" = "yes"; then
4190 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4200 if test "${USE_X_TOOLKIT}" != "none" ; then
4202 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4203 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4204 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4205 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4206 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4210 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4211 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4215 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4216 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4217 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4221 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4222 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4225 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4228 AC_SUBST(WIDGET_OBJ)
4231 case "$USE_X_TOOLKIT" in
4232 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4233 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4234 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4236 AC_SUBST(TOOLKIT_LIBW)
4238 if test "${opsys}" != "mingw32"; then
4239 if test "$USE_X_TOOLKIT" = "none"; then
4240 LIBXT_OTHER="\$(LIBXSM)"
4241 OLDXMENU_TARGET="really-oldXMenu"
4243 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4244 OLDXMENU_TARGET="really-lwlib"
4247 AC_SUBST(LIBXT_OTHER)
4249 ## The X Menu stuff is present in the X10 distribution, but missing
4250 ## from X11. If we have X10, just use the installed library;
4251 ## otherwise, use our own copy.
4252 if test "${HAVE_X11}" = "yes" ; then
4253 AC_DEFINE(HAVE_X11, 1,
4254 [Define to 1 if you want to use version 11 of X windows.
4255 Otherwise, Emacs expects to use version 10.])
4257 if test "$USE_X_TOOLKIT" = "none"; then
4258 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4260 OLDXMENU="\${lwlibdir}/liblw.a"
4262 LIBXMENU="\$(OLDXMENU)"
4263 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4264 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4266 ## For a syntactically valid Makefile; not actually used for anything.
4267 ## See comments in src/Makefile.in.
4269 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4270 if test "${HAVE_X_WINDOWS}" = "yes"; then
4279 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4286 AC_SUBST(OLDXMENU_TARGET)
4289 AC_SUBST(LIBX_OTHER)
4290 AC_SUBST(OLDXMENU_DEPS)
4292 if test "${HAVE_MENUS}" = "yes" ; then
4293 AC_DEFINE(HAVE_MENUS, 1,
4294 [Define to 1 if you have mouse menus.
4295 (This is automatic if you use X, but the option to specify it remains.)
4296 It is also defined with other window systems that support xmenu.c.])
4299 if test "${GNU_MALLOC}" = "yes" ; then
4300 AC_DEFINE(GNU_MALLOC, 1,
4301 [Define to 1 if you want to use the GNU memory allocator.])
4305 if test "${REL_ALLOC}" = "yes" ; then
4306 AC_DEFINE(REL_ALLOC, 1,
4307 [Define REL_ALLOC if you want to use the relocating allocator for
4310 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4312 AC_SUBST(RALLOC_OBJ)
4314 if test "$opsys" = "cygwin"; then
4315 CYGWIN_OBJ="sheap.o cygw32.o"
4316 ## Cygwin differs because of its unexec().
4318 POST_ALLOC_OBJ=lastfile.o
4319 elif test "$opsys" = "mingw32"; then
4322 POST_ALLOC_OBJ=lastfile.o
4325 PRE_ALLOC_OBJ=lastfile.o
4328 AC_SUBST(CYGWIN_OBJ)
4329 AC_SUBST(PRE_ALLOC_OBJ)
4330 AC_SUBST(POST_ALLOC_OBJ)
4332 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4333 # it temporarily reverts them to their pre-pkg-config values,
4334 # because gnulib needs to work with both src (which uses the
4335 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4336 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4337 # and it therefore needs to run in an environment where LIBS does not
4338 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4339 # for some package unrelated to lib-src.
4342 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4343 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4344 gl_ASSERT_NO_GNULIB_POSIXCHECK
4345 gl_ASSERT_NO_GNULIB_TESTS
4350 if test "${opsys}" = "mingw32"; then
4351 CPPFLAGS="-DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4352 # Remove unneeded switches from the value of CC that goes to Makefiles
4353 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4357 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4360 ## The -headerpad option tells ld (see man page) to leave room at the
4361 ## end of the header for adding load commands. Needed for dumping.
4362 ## 0x690 is the total size of 30 segment load commands (at 56
4363 ## each); under Cocoa 31 commands are required.
4364 if test "$HAVE_NS" = "yes"; then
4365 libs_nsgui="-framework AppKit"
4371 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4373 ## This is here because src/Makefile.in did some extra fiddling around
4374 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4375 ## LD_SWITCH_SYSTEM_TEMACS instead,
4376 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4377 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4380 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4381 ## find X at run-time.
4382 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4383 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4384 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4385 ## had different values in configure (in ac_link) and src/Makefile.in.
4386 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4387 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4390 LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-subsystem,console -Wl,-entry,__start -Wl,-Map,./temacs.map"
4393 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4396 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4398 ## Common for all window systems
4399 if test "$window_system" != "none"; then
4400 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4401 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4404 AC_SUBST(WINDOW_SYSTEM_OBJ)
4406 AH_TOP([/* GNU Emacs site configuration template file.
4408 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4409 Free Software Foundation, Inc.
4411 This file is part of GNU Emacs.
4413 GNU Emacs is free software: you can redistribute it and/or modify
4414 it under the terms of the GNU General Public License as published by
4415 the Free Software Foundation, either version 3 of the License, or
4416 (at your option) any later version.
4418 GNU Emacs is distributed in the hope that it will be useful,
4419 but WITHOUT ANY WARRANTY; without even the implied warranty of
4420 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4421 GNU General Public License for more details.
4423 You should have received a copy of the GNU General Public License
4424 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4427 /* No code in Emacs #includes config.h twice, but some bits of code
4428 intended to work with other packages as well (like gmalloc.c)
4429 think they can include it as many times as they like. */
4430 #ifndef EMACS_CONFIG_H
4431 #define EMACS_CONFIG_H
4434 AH_BOTTOM([#include <conf_post.h>
4436 #endif /* EMACS_CONFIG_H */
4445 #### Report on what we decided to do.
4446 #### Report GTK as a toolkit, even if it doesn't use Xt.
4447 #### It makes printing result more understandable as using GTK sets
4448 #### toolkit_scroll_bars to yes by default.
4449 if test "${HAVE_GTK}" = "yes"; then
4450 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4454 Configured for \`${canonical}'.
4456 Where should the build process find the source code? ${srcdir}
4457 What compiler should emacs be built with? ${CC} ${CFLAGS}
4458 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4459 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4460 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4461 What window system should Emacs use? ${window_system}
4462 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4464 if test -n "${x_includes}"; then
4465 echo " Where do we find X Windows header files? ${x_includes}"
4467 echo " Where do we find X Windows header files? Standard dirs"
4469 if test -n "${x_libraries}"; then
4470 echo " Where do we find X Windows libraries? ${x_libraries}"
4472 echo " Where do we find X Windows libraries? Standard dirs"
4475 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4476 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4477 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4478 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4479 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4480 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4481 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4482 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4484 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4485 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4486 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4487 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4488 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4489 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4490 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4492 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4493 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4494 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4495 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4497 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4500 if test -n "${EMACSDATA}"; then
4501 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4503 if test -n "${EMACSDOC}"; then
4504 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4509 if test "$HAVE_NS" = "yes"; then
4511 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4512 The installed application will go to nextstep/Emacs.app and can be
4513 run or moved from there."
4514 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4515 echo "The application will be fully self-contained."
4517 echo "The lisp resources for the application will be installed under ${prefix}.
4518 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4519 to run if these resources are not installed."
4524 if test "${opsys}" = "cygwin"; then
4526 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4532 # Remove any trailing slashes in these variables.
4533 [test "${prefix}" != NONE &&
4534 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4535 test "${exec_prefix}" != NONE &&
4536 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4538 if test "$HAVE_NS" = "yes"; then
4539 if test "$NS_IMPL_GNUSTEP" = yes; then
4540 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4541 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4543 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4544 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4548 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4549 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4550 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4551 dnl (else you get "no `Makefile.am' found for any configure output").
4552 dnl This will work, but you get a config.status that is not quite right
4553 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4554 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4555 dnl it seems better to just live with the duplication.
4556 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4558 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4559 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4560 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4561 leim/Makefile nextstep/Makefile])
4563 dnl test/ is not present in release tarfiles.
4564 opt_makefile=test/automated/Makefile
4566 if test -f "$srcdir/$opt_makefile.in"; then
4567 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4568 dnl Again, it's best not to use a variable. Though you can add
4569 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4570 AC_CONFIG_FILES([test/automated/Makefile])
4574 dnl admin/ may or may not be present.
4575 opt_makefile=admin/unidata/Makefile
4577 if test -f "$srcdir/$opt_makefile.in"; then
4578 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4579 AC_CONFIG_FILES([admin/unidata/Makefile])
4583 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4585 AC_SUBST(SUBDIR_MAKEFILES_IN)
4587 dnl Make the necessary directories, if they don't exist.
4588 AC_CONFIG_COMMANDS([mkdirs], [
4589 for dir in etc lisp ; do
4590 test -d ${dir} || mkdir ${dir}
4594 dnl You might wonder (I did) why epaths.h is generated by running make,
4595 dnl rather than just letting configure generate it from epaths.in.
4596 dnl One reason is that the various paths are not fully expanded (see above);
4597 dnl eg gamedir=${prefix}/var/games/emacs.
4598 dnl Secondly, the GNU Coding standards require that one should be able
4599 dnl to run `make prefix=/some/where/else' and override the values set
4600 dnl by configure. This also explains the `move-if-change' test and
4601 dnl the use of force in the `epaths-force' rule in Makefile.in.
4602 AC_CONFIG_COMMANDS([epaths], [
4603 echo creating src/epaths.h
4604 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4605 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4607 AC_CONFIG_COMMANDS([gdbinit], [
4608 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4609 echo creating src/.gdbinit
4610 echo "source $srcdir/src/.gdbinit" > src/.gdbinit