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)
1032 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1033 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1035 freebsd) LIBS_SYSTEM="-lutil" ;;
1037 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1039 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1041 ## Motif needs -lgen.
1042 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1044 mingw32) LIBS_SYSTEM="-lcomctl32"
1045 LIB_WSOCK32="$LIB_WSOCK32 -lwsock32"
1046 NTLIB_O="ntlib.$ac_objext"
1050 AC_SUBST(LIBS_SYSTEM)
1051 AC_SUBST(LIB_WSOCK32)
1054 ### Make sure subsequent tests use flags consistent with the build flags.
1056 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1057 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1059 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1062 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1063 AC_DEFUN([AC_TYPE_SIZE_T])
1064 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1065 AC_DEFUN([AC_TYPE_UID_T])
1069 dnl Current possibilities handled by sed (aix4-2 -> aix,
1070 dnl gnu-linux -> gnu/linux, etc.):
1071 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1072 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1073 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1080 ## Adding -lm confuses the dynamic linker, so omit it.
1084 SYSTEM_TYPE=berkeley-unix
1086 gnu-linux | gnu-kfreebsd )
1088 hpux10-20 | hpux11 )
1092 SYSTEM_TYPE=windows-nt
1094 dnl NB this may be adjusted below.
1096 SYSTEM_TYPE=berkeley-unix
1100 SYSTEM_TYPE=usg-unix-v
1106 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1107 [The type of system you are compiling for; sets `system-type'.])
1110 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1111 pre_PKG_CONFIG_LIBS=$LIBS
1113 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1115 dnl This function definition taken from Gnome 2.0
1116 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1117 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1118 dnl also defines GSTUFF_PKG_ERRORS on error
1119 AC_DEFUN([PKG_CHECK_MODULES], [
1122 if test "$PKG_CONFIG" = "no" ; then
1123 ifelse([$4], , [AC_MSG_ERROR([
1124 *** 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.])], [$4])
1126 PKG_CONFIG_MIN_VERSION=0.9.0
1127 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1128 AC_MSG_CHECKING(for $2)
1130 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1131 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1132 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1139 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1140 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1141 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1147 ## If we have a custom action on failure, don't print errors, but
1148 ## do set a variable so people can do so. Do it in a subshell
1149 ## to capture any diagnostics in invoking pkg-config.
1150 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1151 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1157 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1158 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1162 if test $succeeded = yes; then
1163 ifelse([$3], , :, [$3])
1165 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])
1169 if test "${with_sound}" != "no"; then
1170 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1171 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h,
1172 have_sound_header=yes, [], [
1174 #define WIN32_LEAN_AND_MEAN
1175 #include <windows.h>
1178 # Emulation library used on NetBSD.
1179 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1183 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1184 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1185 if test $HAVE_ALSA = yes; then
1186 SAVE_CFLAGS="$CFLAGS"
1188 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1189 LIBS="$ALSA_LIBS $LIBS"
1190 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1191 emacs_alsa_normal=yes,
1192 emacs_alsa_normal=no)
1193 if test "$emacs_alsa_normal" != yes; then
1194 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1195 [[snd_lib_error_set_handler (0);]])],
1196 emacs_alsa_subdir=yes,
1197 emacs_alsa_subdir=no)
1198 if test "$emacs_alsa_subdir" != yes; then
1199 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1201 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1204 CFLAGS="$SAVE_CFLAGS"
1206 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1207 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1208 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1211 dnl Define HAVE_SOUND if we have sound support. We know it works and
1212 dnl compiles only on the specified platforms. For others, it
1213 dnl probably doesn't make sense to try.
1214 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1216 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1217 gnu-linux|freebsd|netbsd)
1218 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1221 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1226 AC_SUBST(CFLAGS_SOUND)
1229 dnl checks for header files
1230 AC_CHECK_HEADERS_ONCE(
1231 linux/version.h sys/systeminfo.h
1234 sys/utsname.h pwd.h utmp.h util.h)
1236 AC_MSG_CHECKING(if personality LINUX32 can be set)
1237 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1238 emacs_cv_personality_linux32=yes,
1239 emacs_cv_personality_linux32=no)
1240 AC_MSG_RESULT($emacs_cv_personality_linux32)
1242 if test $emacs_cv_personality_linux32 = yes; then
1243 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1244 [Define to 1 if personality LINUX32 can be set.])
1247 dnl On Solaris 8 there's a compilation warning for term.h because
1248 dnl it doesn't define `bool'.
1249 AC_CHECK_HEADERS(term.h, , , -)
1251 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1253 if test $ac_cv_have_decl_sys_siglist != yes; then
1254 # For Tru64, at least:
1255 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1257 if test $ac_cv_have_decl___sys_siglist = yes; then
1258 AC_DEFINE(sys_siglist, __sys_siglist,
1259 [Define to any substitute for sys_siglist.])
1264 dnl Check for speed_t typedef.
1265 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1266 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1267 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1268 if test $emacs_cv_speed_t = yes; then
1269 AC_DEFINE(HAVE_SPEED_T, 1,
1270 [Define to 1 if `speed_t' is declared by <termios.h>.])
1273 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1274 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1275 #if HAVE_SYS_SOCKET_H
1276 #include <sys/socket.h>
1278 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1279 #if HAVE_SYS_SOCKET_H
1280 #include <sys/socket.h>
1282 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1283 #if HAVE_SYS_SOCKET_H
1284 #include <sys/socket.h>
1287 dnl checks for structure members
1288 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1289 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1290 struct ifreq.ifr_addr,
1291 struct ifreq.ifr_addr.sa_len], , ,
1292 [AC_INCLUDES_DEFAULT
1293 #if HAVE_SYS_SOCKET_H
1294 #include <sys/socket.h>
1300 dnl Check for endianness.
1301 dnl AC_C_BIGENDIAN is done by gnulib.
1303 dnl check for Make feature
1304 dnl AC_PROG_MAKE_SET is done by Automake.
1309 dnl check for GNU Make if we have GCC and autodepend is on.
1310 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1311 AC_MSG_CHECKING([whether we are using GNU Make])
1313 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1314 if test "x$testval" != x; then
1317 ac_enable_autodepend=no
1319 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1320 if test $HAVE_GNU_MAKE = yes; then
1321 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1322 SAVE_CFLAGS="$CFLAGS"
1323 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1324 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1325 CFLAGS="$SAVE_CFLAGS"
1326 test -f deps.d || ac_enable_autodepend=no
1328 AC_MSG_RESULT([$ac_enable_autodepend])
1330 if test $ac_enable_autodepend = yes; then
1331 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1332 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1333 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1334 deps_frag=autodeps.mk
1337 deps_frag=$srcdir/src/$deps_frag
1340 AC_SUBST_FILE(deps_frag)
1343 lisp_frag=$srcdir/src/lisp.mk
1344 AC_SUBST_FILE(lisp_frag)
1347 dnl checks for operating system services
1348 AC_SYS_LONG_FILE_NAMES
1350 #### Choose a window system.
1352 ## We leave window_system equal to none if
1353 ## we end up building without one. Any new window system should
1354 ## set window_system to an appropriate value and add objects to
1355 ## window-system-specific substs.
1359 if test "$no_x" != yes; then
1363 LD_SWITCH_X_SITE_RPATH=
1364 if test "${x_libraries}" != NONE; then
1365 if test -n "${x_libraries}"; then
1366 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1367 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1369 x_default_search_path=""
1370 x_search_path=${x_libraries}
1371 if test -z "${x_search_path}"; then
1372 x_search_path=/usr/lib
1374 for x_library in `echo ${x_search_path}: | \
1375 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1377 ${x_library}/X11/%L/%T/%N%C%S:\
1378 ${x_library}/X11/%l/%T/%N%C%S:\
1379 ${x_library}/X11/%T/%N%C%S:\
1380 ${x_library}/X11/%L/%T/%N%S:\
1381 ${x_library}/X11/%l/%T/%N%S:\
1382 ${x_library}/X11/%T/%N%S"
1383 if test x"${x_default_search_path}" = x; then
1384 x_default_search_path=${x_search_path}
1386 x_default_search_path="${x_search_path}:${x_default_search_path}"
1390 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1392 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1393 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1396 if test x"${x_includes}" = x; then
1397 bitmapdir=/usr/include/X11/bitmaps
1399 # accumulate include directories that have X11 bitmap subdirectories
1401 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1402 if test -d "${bmd}/X11/bitmaps"; then
1403 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1405 if test -d "${bmd}/bitmaps"; then
1406 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1409 if test ${bmd_acc} != "dummyval"; then
1410 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1417 tmp_CPPFLAGS="$CPPFLAGS"
1418 tmp_CFLAGS="$CFLAGS"
1419 CPPFLAGS="$CPPFLAGS -x objective-c"
1420 CFLAGS="$CFLAGS -x objective-c"
1423 if test "${with_ns}" != no; then
1424 if test "${opsys}" = darwin; then
1426 ns_appdir=`pwd`/nextstep/Emacs.app
1427 ns_appbindir=${ns_appdir}/Contents/MacOS
1428 ns_appresdir=${ns_appdir}/Contents/Resources
1429 ns_appsrc=Cocoa/Emacs.base
1430 elif test -f $GNUSTEP_CONFIG_FILE; then
1432 ns_appdir=`pwd`/nextstep/Emacs.app
1433 ns_appbindir=${ns_appdir}
1434 ns_appresdir=${ns_appdir}/Resources
1435 ns_appsrc=GNUstep/Emacs.base
1436 dnl FIXME sourcing this several times in subshells seems inefficient.
1437 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1438 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1439 dnl I seemed to need these as well with GNUstep-startup 0.25.
1440 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1441 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1442 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1443 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1444 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1445 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1446 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1447 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1448 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1449 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1450 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1451 dnl If they had chosen to either define it or not, we could have
1452 dnl just used AC_CHECK_DECL here.
1453 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1454 emacs_cv_objc_exceptions,
1455 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1456 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1460 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1461 if test $emacs_cv_objc_exceptions = yes; then
1462 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1463 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1464 [Define if GNUstep uses ObjC exceptions.])
1465 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1469 dnl This is only used while we test the NS headers, it gets reset below.
1470 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1472 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1473 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1474 files are missing or cannot be compiled.])])
1476 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1478 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1479 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1482 #error "OSX 10.4 or newer required"
1486 ns_osx_have_104=yes,
1488 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1490 ns_have_nsinteger=yes,
1491 ns_have_nsinteger=no)
1492 if test $ns_osx_have_104 = no; then
1493 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1495 if test $ns_have_nsinteger = yes; then
1496 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1500 AC_SUBST(LIBS_GNUSTEP)
1502 INSTALL_ARCH_INDEP_EXTRA=install-etc
1503 ns_self_contained=no
1506 if test "${HAVE_NS}" = yes; then
1507 if test "$with_toolkit_scroll_bars" = "no"; then
1508 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1511 window_system=nextstep
1512 # set up packaging dirs
1513 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1514 ns_self_contained=yes
1515 prefix=${ns_appresdir}
1516 exec_prefix=${ns_appbindir}
1517 dnl This one isn't really used, only archlibdir is.
1518 libexecdir="\${ns_appbindir}/libexec"
1519 archlibdir="\${ns_appbindir}/libexec"
1520 docdir="\${ns_appresdir}/etc"
1521 etcdir="\${ns_appresdir}/etc"
1522 dnl FIXME maybe set datarootdir instead.
1523 dnl That would also get applications, icons, man.
1524 infodir="\${ns_appresdir}/info"
1525 mandir="\${ns_appresdir}/man"
1526 lispdir="\${ns_appresdir}/lisp"
1527 leimdir="\${ns_appresdir}/leim"
1528 INSTALL_ARCH_INDEP_EXTRA=
1530 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1532 CFLAGS="$tmp_CFLAGS"
1533 CPPFLAGS="$tmp_CPPFLAGS"
1534 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1535 AC_SUBST(ns_self_contained)
1537 AC_SUBST(NS_OBJC_OBJ)
1544 if test "${with_w32}" != no; then
1545 if test "${opsys}" != "cygwin"; then
1546 if test "${opsys}" != "mingw32"; then
1547 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1550 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1551 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1552 cannot be found.])])
1554 if test "${opsys}" = "mingw32"; then
1555 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1556 [AC_MSG_ERROR([The windows.h header file is required,
1557 but cannot be found.])])
1558 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1559 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1560 #include <windows.h>
1561 #include <usp10.h>]],
1562 [[void test(PIMAGE_NT_HEADERS pHeader)
1563 {PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader);}]])],
1564 emacs_cv_w32api=yes, emacs_cv_w32api=no)
1565 AC_MSG_RESULT($emacs_cv_w32api)
1566 if test "${emacs_cv_w32api}" = "no"; then
1567 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1571 if test "${HAVE_W32}" = "yes"; then
1572 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1573 AC_CHECK_TOOL(WINDRES, [windres],
1574 [AC_MSG_ERROR([No resource compiler found.])])
1575 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1576 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1577 if test "${opsys}" = "cygwin"; then
1578 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1579 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1581 # Tell the linker that emacs.res is an object (which we compile from
1582 # the rc file), not a linker script.
1583 W32_RES_LINK="-Wl,-bpe-i386 -Wl,emacs.res"
1585 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1586 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1587 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lusp10"
1593 AC_SUBST(W32_RES_LINK)
1595 if test "${HAVE_W32}" = "yes"; then
1600 ## $window_system is now set to the window system we will
1608 case "${window_system}" in
1613 case "${with_x_toolkit}" in
1614 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1615 motif ) USE_X_TOOLKIT=MOTIF ;;
1617 term_header=gtkutil.h
1618 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1619 dnl USE_X_TOOLKIT is set.
1620 USE_X_TOOLKIT=none ;;
1621 gtk2 ) with_gtk2=yes
1622 term_header=gtkutil.h
1623 USE_X_TOOLKIT=none ;;
1624 gtk3 ) with_gtk3=yes
1625 term_header=gtkutil.h
1626 USE_X_TOOLKIT=none ;;
1627 no ) USE_X_TOOLKIT=none ;;
1628 dnl If user did not say whether to use a toolkit, make this decision later:
1629 dnl use the toolkit if we have gtk, or X11R5 or newer.
1630 * ) USE_X_TOOLKIT=maybe ;;
1634 term_header=nsterm.h
1637 term_header=w32term.h
1641 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1642 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1643 if test "$HAVE_XSERVER" = true ||
1644 test -n "$DISPLAY" ||
1645 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1646 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1647 were found. You should install the relevant development files for X
1648 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1649 sure you have development files for image handling, i.e.
1650 tiff, gif, jpeg, png and xpm.
1651 If you are sure you want Emacs compiled without X window support, pass
1657 ### If we're using X11, we should use the X menu package.
1660 yes ) HAVE_MENUS=yes ;;
1663 # Does the opsystem file prohibit the use of the GNU malloc?
1664 # Assume not, until told otherwise.
1668 [whether malloc is Doug Lea style],
1669 [emacs_cv_var_doug_lea_malloc],
1672 [[#include <malloc.h>
1673 static void hook (void) {}]],
1674 [[malloc_set_state (malloc_get_state ());
1675 __after_morecore_hook = hook;
1676 __malloc_initialize_hook = hook;]])],
1677 [emacs_cv_var_doug_lea_malloc=yes],
1678 [emacs_cv_var_doug_lea_malloc=no])])
1679 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1682 dnl See comments in aix4-2.h about maybe using system malloc there.
1685 ## darwin ld insists on the use of malloc routines in the System framework.
1686 darwin|sol2-10) system_malloc=yes ;;
1689 if test "${system_malloc}" = "yes"; then
1690 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1693 (The GNU allocators don't work with this system configuration.)"
1697 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1698 VMLIMIT_OBJ=vm-limit.o
1700 AC_CHECK_HEADERS([sys/vlimit.h])
1701 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1704 [[extern char data_start[]; char ch;]],
1705 [[return data_start < &ch;]])],
1706 [emacs_cv_data_start=yes],
1707 [emacs_cv_data_start=no])])
1708 if test $emacs_cv_data_start = yes; then
1709 AC_DEFINE([HAVE_DATA_START], 1,
1710 [Define to 1 if data_start is the address of the start
1711 of the main data segment.])
1714 AC_SUBST(GMALLOC_OBJ)
1715 AC_SUBST(VMLIMIT_OBJ)
1717 if test "$doug_lea_malloc" = "yes" ; then
1718 if test "$GNU_MALLOC" = yes ; then
1720 (Using Doug Lea's new malloc from the GNU C Library.)"
1722 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1723 [Define to 1 if you are using the GNU C Library.])
1725 ## Use mmap directly for allocating larger buffers.
1726 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1727 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1728 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1730 gnu*) REL_ALLOC=no ;;
1734 if test x"${REL_ALLOC}" = x; then
1735 REL_ALLOC=${GNU_MALLOC}
1738 use_mmap_for_buffers=no
1740 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1744 if test $use_mmap_for_buffers = yes; then
1745 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1749 LIBS="$LIBS_SYSTEM $LIBS"
1751 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1752 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1753 AC_CHECK_LIB(dnet, dnet_ntoa)
1754 dnl This causes -lresolv to get used in subsequent tests,
1755 dnl which causes failures on some systems such as HPUX 9.
1756 dnl AC_CHECK_LIB(resolv, gethostbyname)
1758 dnl FIXME replace main with a function we actually want from this library.
1759 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1761 dnl Check if pthreads is available.
1763 AC_CHECK_HEADERS_ONCE(pthread.h)
1764 if test "$ac_cv_header_pthread_h"; then
1765 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1766 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1767 dnl testing for pthread_self if Emacs uses gmalloc.c.
1768 if test "$GMALLOC_OBJ" = gmalloc.o; then
1769 emacs_pthread_function=pthread_atfork
1771 emacs_pthread_function=pthread_self
1773 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1775 if test "$HAVE_PTHREAD" = yes; then
1776 case "${canonical}" in
1778 *) LIB_PTHREAD="-lpthread"
1779 LIBS="$LIB_PTHREAD $LIBS" ;;
1781 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1783 AC_SUBST([LIB_PTHREAD])
1785 AC_CHECK_LIB(pthreads, cma_open)
1787 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1788 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1789 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1790 ## added to LIBS in configure would never contain the pthreads part,
1791 ## but the value used in Makefiles might. FIXME?
1793 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1794 ## be harmless on older versions of X where it happens to exist.
1795 test "$opsys" = "aix4-2" && \
1796 test $ac_cv_lib_pthreads_cma_open = yes && \
1797 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1799 dnl Check for need for bigtoc support on IBM AIX
1803 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1805 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1806 *) gdb_cv_bigtoc=-bbigtoc ;;
1809 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1810 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1815 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1816 # used for the tests that follow. We set them back to REAL_CFLAGS and
1817 # REAL_CPPFLAGS later on.
1819 REAL_CFLAGS="$CFLAGS"
1820 REAL_CPPFLAGS="$CPPFLAGS"
1822 if test "${HAVE_X11}" = "yes"; then
1823 DEFS="$C_SWITCH_X_SITE $DEFS"
1824 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1826 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1827 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1829 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1830 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1831 # but it's more convenient here to set LD_RUN_PATH since this
1832 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1833 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1834 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1838 if test "${opsys}" = "gnu-linux"; then
1839 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1840 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1841 [[XOpenDisplay ("foo");]])],
1842 [xgnu_linux_first_failure=no],
1843 [xgnu_linux_first_failure=yes])
1844 if test "${xgnu_linux_first_failure}" = "yes"; then
1845 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1846 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1847 OLD_CPPFLAGS="$CPPFLAGS"
1849 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1850 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1851 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1852 LIBS="$LIBS -b i486-linuxaout"
1853 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1854 [[XOpenDisplay ("foo");]])],
1855 [xgnu_linux_second_failure=no],
1856 [xgnu_linux_second_failure=yes])
1857 if test "${xgnu_linux_second_failure}" = "yes"; then
1858 # If we get the same failure with -b, there is no use adding -b.
1859 # So take it out. This plays safe.
1860 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1861 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1862 CPPFLAGS="$OLD_CPPFLAGS"
1873 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1874 # header files included from there.
1875 AC_MSG_CHECKING(for Xkb)
1876 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1877 #include <X11/XKBlib.h>]],
1878 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1879 emacs_xkb=yes, emacs_xkb=no)
1880 AC_MSG_RESULT($emacs_xkb)
1881 if test $emacs_xkb = yes; then
1882 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
1885 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1886 XScreenNumberOfScreen)
1889 if test "${window_system}" = "x11"; then
1890 AC_MSG_CHECKING(X11 version 6)
1891 AC_CACHE_VAL(emacs_cv_x11_version_6,
1892 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1893 [[#if XlibSpecificationRelease < 6
1896 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1897 if test $emacs_cv_x11_version_6 = yes; then
1898 AC_MSG_RESULT(6 or newer)
1899 AC_DEFINE(HAVE_X11R6, 1,
1900 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1901 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1902 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1906 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1907 [Define if you have usable X11R6-style XIM support.])
1911 AC_MSG_RESULT(before 6)
1916 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1918 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
1919 if test "${with_rsvg}" != "no"; then
1920 RSVG_REQUIRED=2.11.0
1921 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1923 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1924 AC_SUBST(RSVG_CFLAGS)
1927 if test $HAVE_RSVG = yes; then
1928 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1929 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1930 LIBS="$RSVG_LIBS $LIBS"
1936 if test "${HAVE_X11}" = "yes"; then
1937 if test "${with_imagemagick}" != "no"; then
1938 ## 6.2.8 is the earliest version known to work, but earlier versions
1939 ## might work - let us know if you find one.
1940 ## 6.0.7 does not work. See bug#7955.
1941 ## 6.8.2 makes Emacs crash; see Bug#13867.
1942 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
1943 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1944 AC_SUBST(IMAGEMAGICK_CFLAGS)
1945 AC_SUBST(IMAGEMAGICK_LIBS)
1947 if test $HAVE_IMAGEMAGICK = yes; then
1948 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1949 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1950 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1951 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1961 if test "${opsys}" != "mingw32"; then
1962 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1965 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1967 dnl Checks for libraries.
1968 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1969 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1970 AC_MSG_ERROR($GTK_PKG_ERRORS)
1972 if test "$pkg_check_gtk" = "yes"; then
1973 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1974 GTK_OBJ=emacsgtkfixed.o
1975 term_header=gtkutil.h
1976 USE_GTK_TOOLKIT="GTK3"
1977 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
1978 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
1982 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1986 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1989 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1991 dnl Checks for libraries.
1992 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1993 if test "$pkg_check_gtk" = "no" &&
1994 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1996 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1998 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2002 if test x"$pkg_check_gtk" = xyes; then
2004 AC_SUBST(GTK_CFLAGS)
2006 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2007 CFLAGS="$CFLAGS $GTK_CFLAGS"
2008 LIBS="$GTK_LIBS $LIBS"
2009 dnl Try to compile a simple GTK program.
2011 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2012 if test "${GTK_COMPILES}" != "yes"; then
2013 if test "$USE_X_TOOLKIT" != "maybe"; then
2014 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2018 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2019 GTK_OBJ="gtkutil.o $GTK_OBJ"
2021 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2024 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2025 closing open displays. This is no problem if you just use
2026 one display, but if you use more than one and close one of them
2036 if test "${HAVE_GTK}" = "yes"; then
2038 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2039 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2040 if test "$with_toolkit_scroll_bars" != no; then
2041 with_toolkit_scroll_bars=yes
2044 dnl Check if we have the old file selection dialog declared and
2045 dnl in the link library. In 2.x it may be in the library,
2046 dnl but not declared if deprecated featured has been selected out.
2047 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2048 HAVE_GTK_FILE_SELECTION=no
2049 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2050 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2051 #include <gtk/gtk.h>])
2052 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2053 AC_CHECK_FUNCS(gtk_file_selection_new)
2056 dnl Same as above for gtk_handle_box.
2057 HAVE_GTK_HANDLE_BOX=no
2058 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2059 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2060 #include <gtk/gtk.h>])
2061 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2062 AC_CHECK_FUNCS(gtk_handle_box_new)
2065 dnl Same as above for gtk_tearoff_menu_item.
2066 HAVE_GTK_TEAROFF_MENU_ITEM=no
2067 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2068 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2069 #include <gtk/gtk.h>])
2070 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2071 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2074 dnl Check for functions introduced in 2.14 and later.
2075 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2076 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2077 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2078 gtk_orientable_set_orientation \
2079 gtk_window_set_has_resize_grip)
2081 term_header=gtkutil.h
2084 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2085 dnl other platforms.
2088 if test "${with_dbus}" = "yes"; then
2089 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2090 if test "$HAVE_DBUS" = yes; then
2091 LIBS="$LIBS $DBUS_LIBS"
2092 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2093 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2094 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2096 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2097 dbus_type_is_valid \
2098 dbus_validate_bus_name \
2099 dbus_validate_path \
2100 dbus_validate_interface \
2101 dbus_validate_member)
2107 dnl GSettings has been tested under GNU/Linux only.
2109 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2110 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2111 if test "$HAVE_GSETTINGS" = "yes"; then
2112 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2113 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2114 SETTINGS_LIBS="$GSETTINGS_LIBS"
2118 dnl GConf has been tested under GNU/Linux only.
2119 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2121 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2122 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2123 if test "$HAVE_GCONF" = yes; then
2124 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2125 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2126 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2127 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2131 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2132 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2133 if test "$HAVE_GOBJECT" = "yes"; then
2134 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2135 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2137 SAVE_CFLAGS="$CFLAGS"
2139 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2140 LIBS="$SETTINGS_LIBS $LIBS"
2141 AC_CHECK_FUNCS([g_type_init])
2142 CFLAGS="$SAVE_CFLAGS"
2145 AC_SUBST(SETTINGS_CFLAGS)
2146 AC_SUBST(SETTINGS_LIBS)
2149 dnl SELinux is available for GNU/Linux only.
2152 if test "${with_selinux}" = "yes"; then
2153 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2154 if test "$HAVE_LIBSELINUX" = yes; then
2155 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2156 LIBSELINUX_LIBS=-lselinux
2159 AC_SUBST(LIBSELINUX_LIBS)
2162 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2163 if test "${with_gnutls}" = "yes" ; then
2164 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2165 if test "${HAVE_GNUTLS}" = "yes"; then
2166 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2171 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2172 LIBS="$LIBGNUTLS_LIBS $LIBS"
2173 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2175 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2176 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2179 # Windows loads GnuTLS dynamically
2180 if test "${opsys}" = "mingw32"; then
2187 AC_SUBST(LIBGNUTLS_LIBS)
2188 AC_SUBST(LIBGNUTLS_CFLAGS)
2190 dnl inotify is only available on GNU/Linux.
2191 if test "${with_inotify}" = "yes"; then
2192 AC_CHECK_HEADERS(sys/inotify.h)
2193 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2194 AC_CHECK_FUNC(inotify_init1)
2197 if test "$ac_cv_func_inotify_init1" = yes; then
2198 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2201 dnl POSIX ACL support: provided by libacl on GNU/Linux, by libc on FreeBSD.
2204 if test "${with_acl}" = "yes"; then
2205 AC_CHECK_LIB([acl], [acl_set_file], HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2206 if test "$HAVE_POSIX_ACL" = yes; then
2207 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2210 AC_CHECK_FUNC(acl_set_file, HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2211 if test "$HAVE_POSIX_ACL" = yes; then
2212 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2216 AC_SUBST(LIBACL_LIBS)
2218 dnl Do not put whitespace before the #include statements below.
2219 dnl Older compilers (eg sunos4 cc) choke on it.
2222 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2223 if test "$with_xaw3d" != no; then
2224 AC_CACHE_VAL(emacs_cv_xaw3d,
2225 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2226 #include <X11/Intrinsic.h>
2227 #include <X11/Xaw3d/Simple.h>]],
2229 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2230 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2231 emacs_cv_xaw3d=no)])
2235 if test $emacs_cv_xaw3d = yes; then
2236 AC_MSG_CHECKING(for xaw3d)
2237 AC_MSG_RESULT([yes; using Lucid toolkit])
2241 AC_DEFINE(HAVE_XAW3D, 1,
2242 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2244 AC_MSG_CHECKING(for xaw3d)
2246 AC_MSG_CHECKING(for libXaw)
2247 AC_CACHE_VAL(emacs_cv_xaw,
2248 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2249 #include <X11/Intrinsic.h>
2250 #include <X11/Xaw/Simple.h>]],
2254 if test $emacs_cv_xaw = yes; then
2255 AC_MSG_RESULT([yes; using Lucid toolkit])
2258 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2259 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2261 AC_MSG_ERROR([No X toolkit could be found.
2262 If you are sure you want Emacs compiled without an X toolkit, pass
2264 to configure. Otherwise, install the development libraries for the toolkit
2265 that you want to use (e.g. Gtk+) and re-run configure.])
2270 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2273 if test "${USE_X_TOOLKIT}" != "none"; then
2274 AC_MSG_CHECKING(X11 toolkit version)
2275 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2276 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2277 [[#if XtSpecificationRelease < 6
2280 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2281 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2282 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2283 AC_MSG_RESULT(6 or newer)
2284 AC_DEFINE(HAVE_X11XTR6, 1,
2285 [Define to 1 if you have the X11R6 or newer version of Xt.])
2286 LIBXTR6="-lSM -lICE"
2288 ## Use libw.a along with X11R6 Xt.
2289 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2292 AC_MSG_RESULT(before 6)
2295 dnl If using toolkit, check whether libXmu.a exists.
2296 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2298 if test x$HAVE_X11XTR6 = xyes; then
2299 LIBS="-lXt -lSM -lICE $LIBS"
2303 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2304 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2305 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2309 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2310 dnl Why not just test for libxmu in the normal way?
2313 ## These systems don't supply Xmu.
2315 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2323 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2324 if test "${HAVE_X11}" = "yes"; then
2325 if test "${USE_X_TOOLKIT}" != "none"; then
2326 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2331 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2332 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2333 if test -d /usr/include/openmotif; then
2334 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2335 emacs_cv_openmotif=yes
2336 case "$canonical" in
2337 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2338 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2341 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2344 emacs_cv_openmotif=no
2346 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2347 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2348 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2351 Motif version prior to 2.1.
2353 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2354 if test $emacs_cv_motif_version_2_1 = yes; then
2355 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2356 if test x$emacs_cv_openmotif = xyes; then
2357 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2360 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2361 # We put this in CFLAGS temporarily to precede other -I options
2362 # that might be in CFLAGS temporarily.
2363 # We put this in CPPFLAGS where it precedes the other -I options.
2364 OLD_CPPFLAGS=$CPPFLAGS
2366 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2367 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2368 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2370 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2371 if test $emacs_cv_lesstif = yes; then
2372 # Make sure this -I option remains in CPPFLAGS after it is set
2373 # back to REAL_CPPFLAGS.
2374 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2375 # have those other -I options anyway. Ultimately, having this
2376 # directory ultimately in CPPFLAGS will be enough.
2377 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2378 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2381 CPPFLAGS=$OLD_CPPFLAGS
2384 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2385 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2388 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2389 dnl using Motif or Xaw3d is available, and unless
2390 dnl --with-toolkit-scroll-bars=no was specified.
2392 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2393 [Define to 1 if we should use toolkit scroll bars.])dnl
2394 USE_TOOLKIT_SCROLL_BARS=no
2395 if test "${with_toolkit_scroll_bars}" != "no"; then
2396 if test "${USE_X_TOOLKIT}" != "none"; then
2397 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2398 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2400 USE_TOOLKIT_SCROLL_BARS=yes
2401 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2402 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2403 USE_TOOLKIT_SCROLL_BARS=yes
2405 elif test "${HAVE_GTK}" = "yes"; then
2406 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2407 USE_TOOLKIT_SCROLL_BARS=yes
2408 elif test "${HAVE_NS}" = "yes"; then
2409 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2410 USE_TOOLKIT_SCROLL_BARS=yes
2411 elif test "${HAVE_W32}" = "yes"; then
2412 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2413 USE_TOOLKIT_SCROLL_BARS=yes
2417 dnl See if XIM is available.
2418 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2419 #include <X11/Xlib.h>
2420 #include <X11/Xresource.h>]],
2421 [[XIMProc callback;]])],
2423 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2426 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2428 if test "${with_xim}" != "no"; then
2429 AC_DEFINE(USE_XIM, 1,
2430 [Define to 1 if we should use XIM, if it is available.])
2434 if test "${HAVE_XIM}" != "no"; then
2436 if test "$GCC" = yes; then
2437 CFLAGS="$CFLAGS --pedantic-errors"
2439 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2440 #include <X11/Xlib.h>
2441 #include <X11/Xresource.h>]],
2447 XPointer *client_data;
2449 /* If we're not using GCC, it's probably not XFree86, and this is
2450 probably right, but we can't use something like --pedantic-errors. */
2451 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2452 char*, XIMProc, XPointer*);
2454 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2456 [emacs_cv_arg6_star=yes])
2457 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2458 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2459 either XPointer or XPointer*.])dnl
2460 if test "$emacs_cv_arg6_star" = yes; then
2461 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2463 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2468 ### Start of font-backend (under any platform) section.
2469 # (nothing here yet -- this is a placeholder)
2470 ### End of font-backend (under any platform) section.
2472 ### Start of font-backend (under X11) section.
2473 if test "${HAVE_X11}" = "yes"; then
2474 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2476 ## Use -lXft if available, unless `--with-xft=no'.
2478 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2481 if test "x${with_xft}" != "xno"; then
2483 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2484 ## Because xftfont.c uses XRenderQueryExtension, we also
2485 ## need to link to -lXrender.
2487 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2488 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2489 OLD_CPPFLAGS="$CPPFLAGS"
2490 OLD_CFLAGS="$CFLAGS"
2492 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2493 CFLAGS="$CFLAGS $XFT_CFLAGS"
2494 XFT_LIBS="-lXrender $XFT_LIBS"
2495 LIBS="$XFT_LIBS $LIBS"
2496 AC_CHECK_HEADER(X11/Xft/Xft.h,
2497 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2499 if test "${HAVE_XFT}" = "yes"; then
2500 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2502 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2504 CPPFLAGS="$OLD_CPPFLAGS"
2505 CFLAGS="$OLD_CFLAGS"
2507 fi # "${HAVE_XFT}" = "yes"
2508 fi # "$HAVE_XFT" != no
2509 fi # "x${with_xft}" != "xno"
2511 ## We used to allow building with FreeType and without Xft.
2512 ## However, the ftx font backend driver is not in good shape.
2513 if test "$HAVE_XFT" != "yes"; then
2514 dnl For the "Does Emacs use" message at the end.
2518 dnl Strict linkers fail with
2519 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2520 dnl if -lfreetype is not specified.
2521 dnl The following is needed to set FREETYPE_LIBS.
2522 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2525 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2529 if test "${HAVE_FREETYPE}" = "yes"; then
2530 AC_DEFINE(HAVE_FREETYPE, 1,
2531 [Define to 1 if using the freetype and fontconfig libraries.])
2532 if test "${with_libotf}" != "no"; then
2533 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2535 if test "$HAVE_LIBOTF" = "yes"; then
2536 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2537 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2538 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2539 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2540 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2541 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2542 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2546 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2547 dnl Does the new font backend require it, or can it work without it?
2551 if test "${HAVE_LIBOTF}" = yes; then
2552 if test "${with_m17n_flt}" != "no"; then
2553 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2554 if test "$HAVE_M17N_FLT" = "yes"; then
2555 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2566 ### End of font-backend (under X11) section.
2568 AC_SUBST(FREETYPE_CFLAGS)
2569 AC_SUBST(FREETYPE_LIBS)
2570 AC_SUBST(FONTCONFIG_CFLAGS)
2571 AC_SUBST(FONTCONFIG_LIBS)
2572 AC_SUBST(LIBOTF_CFLAGS)
2573 AC_SUBST(LIBOTF_LIBS)
2574 AC_SUBST(M17N_FLT_CFLAGS)
2575 AC_SUBST(M17N_FLT_LIBS)
2577 ### Use -lXpm if available, unless `--with-xpm=no'.
2578 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2581 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2582 if test "${with_xpm}" != "no"; then
2583 SAVE_CPPFLAGS="$CPPFLAGS"
2584 SAVE_LDFLAGS="$LDFLAGS"
2585 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2586 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2587 AC_CHECK_HEADER(X11/xpm.h,
2588 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2589 if test "${HAVE_XPM}" = "yes"; then
2590 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2591 AC_EGREP_CPP(no_return_alloc_pixels,
2592 [#include "X11/xpm.h"
2593 #ifndef XpmReturnAllocPixels
2594 no_return_alloc_pixels
2596 ], HAVE_XPM=no, HAVE_XPM=yes)
2598 if test "${HAVE_XPM}" = "yes"; then
2599 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2603 CPPFLAGS="$SAVE_CPPFLAGS"
2604 LDFLAGS="$SAVE_LDFLAGS"
2609 if test "${HAVE_XPM}" = "yes"; then
2610 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2615 if test "${HAVE_X11}" = "yes"; then
2616 if test "${with_xpm}" != "no"; then
2617 AC_CHECK_HEADER(X11/xpm.h,
2618 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2619 if test "${HAVE_XPM}" = "yes"; then
2620 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2621 AC_EGREP_CPP(no_return_alloc_pixels,
2622 [#include "X11/xpm.h"
2623 #ifndef XpmReturnAllocPixels
2624 no_return_alloc_pixels
2626 ], HAVE_XPM=no, HAVE_XPM=yes)
2628 if test "${HAVE_XPM}" = "yes"; then
2636 if test "${HAVE_XPM}" = "yes"; then
2637 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2642 if test "${opsys}" = "mingw32"; then
2643 if test "${with_xpm}" != "no"; then
2644 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2648 if test "${HAVE_XPM}" = "yes"; then
2649 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2655 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2656 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2659 if test "${opsys}" = "mingw32"; then
2660 if test "${with_jpeg}" != "no"; then
2661 dnl Checking for jpeglib.h can lose because of a redefinition of
2663 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2665 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2666 if test "${HAVE_JPEG}" = "yes"; then
2667 AC_DEFINE(HAVE_JPEG)
2668 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2669 [#include <jpeglib.h>
2670 version=JPEG_LIB_VERSION
2672 [AC_DEFINE(HAVE_JPEG)],
2673 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2676 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2677 if test "${with_jpeg}" != "no"; then
2678 dnl Checking for jpeglib.h can lose because of a redefinition of
2680 AC_CHECK_HEADER(jerror.h,
2681 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2684 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2685 if test "${HAVE_JPEG}" = "yes"; then
2686 AC_DEFINE(HAVE_JPEG)
2687 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2688 [#include <jpeglib.h>
2689 version=JPEG_LIB_VERSION
2691 [AC_DEFINE(HAVE_JPEG)],
2692 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2695 if test "${HAVE_JPEG}" = "yes"; then
2701 ### Use -lpng if available, unless `--with-png=no'.
2702 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2705 if test "${opsys}" = "mingw32"; then
2706 if test "${with_png}" != "no"; then
2707 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2709 if test "${HAVE_PNG}" = "yes"; then
2710 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2712 AC_CHECK_DECL(png_longjmp,
2714 [AC_DEFINE(PNG_DEPSTRUCT, [],
2715 [Define to empty to suppress deprecation warnings when building
2716 with --enable-gcc-warnings and with libpng versions before 1.5,
2717 which lack png_longjmp.])],
2718 [[#ifdef HAVE_LIBPNG_PNG_H
2719 # include <libpng/png.h>
2725 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2726 if test "${with_png}" != "no"; then
2727 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2728 # in /usr/include/libpng.
2729 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2730 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2731 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2735 if test "${HAVE_PNG}" = "yes"; then
2736 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2737 LIBPNG="-lpng -lz -lm"
2739 AC_CHECK_DECL(png_longjmp,
2741 [AC_DEFINE(PNG_DEPSTRUCT, [],
2742 [Define to empty to suppress deprecation warnings when building
2743 with --enable-gcc-warnings and with libpng versions before 1.5,
2744 which lack png_longjmp.])],
2745 [[#ifdef HAVE_LIBPNG_PNG_H
2746 # include <libpng/png.h>
2755 ### Use -ltiff if available, unless `--with-tiff=no'.
2756 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
2759 if test "${opsys}" = "mingw32"; then
2760 if test "${with_tiff}" != "no"; then
2761 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
2763 if test "${HAVE_TIFF}" = "yes"; then
2764 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2766 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2767 if test "${with_tiff}" != "no"; then
2768 AC_CHECK_HEADER(tiffio.h,
2770 # At least one tiff package requires the jpeg library.
2771 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2772 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2775 if test "${HAVE_TIFF}" = "yes"; then
2776 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2777 dnl FIXME -lz -lm, as per libpng?
2783 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2784 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
2787 if test "${opsys}" = "mingw32"; then
2788 if test "${with_gif}" != "no"; then
2789 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
2791 if test "${HAVE_GIF}" = "yes"; then
2792 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2794 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2795 || test "${HAVE_W32}" = "yes"; then
2796 AC_CHECK_HEADER(gif_lib.h,
2797 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2798 # Earlier versions can crash Emacs.
2799 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2801 if test "$HAVE_GIF" = yes; then
2803 elif test "$HAVE_GIF" = maybe; then
2804 # If gif_lib.h but no libgif, try libungif.
2805 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2806 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2809 if test "${HAVE_GIF}" = "yes"; then
2810 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2815 dnl Check for required libraries.
2816 if test "${HAVE_X11}" = "yes"; then
2819 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2820 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2821 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2822 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2823 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2824 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2825 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2826 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2827 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2828 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2830 if test "X${MISSING}" != X; then
2831 AC_MSG_ERROR([The following required libraries were not found:
2833 Maybe some development libraries/packages are missing?
2834 If you don't want to link with them give
2836 as options to configure])
2840 ### Use -lgpm if available, unless `--with-gpm=no'.
2843 if test "${with_gpm}" != "no"; then
2844 AC_CHECK_HEADER(gpm.h,
2845 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2847 if test "${HAVE_GPM}" = "yes"; then
2848 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2854 dnl Check for malloc/malloc.h on darwin
2855 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2858 ### Use NeXTstep API to implement GUI.
2859 if test "${HAVE_NS}" = "yes"; then
2860 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2861 if test "${NS_IMPL_COCOA}" = "yes"; then
2862 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2864 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2865 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2866 # See also .m.o rule in Makefile.in */
2867 # FIXME: are all these flags really needed? Document here why. */
2868 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2869 ## Extra CFLAGS applied to src/*.m files.
2870 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"
2872 # We also have mouse menus.
2877 if test "${HAVE_W32}" = "yes"; then
2881 ### Use session management (-lSM -lICE) if available
2884 if test "${HAVE_X11}" = "yes"; then
2885 AC_CHECK_HEADER(X11/SM/SMlib.h,
2886 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2888 if test "${HAVE_X_SM}" = "yes"; then
2889 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2893 *) LIBS="$LIBXSM $LIBS" ;;
2899 ### Use libxml (-lxml2) if available
2900 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
2902 if test "${with_xml2}" != "no"; then
2903 ### I'm not sure what the version number should be, so I just guessed.
2904 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2905 if test "${HAVE_LIBXML2}" = "yes"; then
2906 if test "${opsys}" != "mingw32"; then
2907 LIBS="$LIBXML2_LIBS $LIBS"
2908 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2912 if test "${HAVE_LIBXML2}" = "yes"; then
2913 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2920 AC_SUBST(LIBXML2_LIBS)
2921 AC_SUBST(LIBXML2_CFLAGS)
2923 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2924 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
2925 if test "${opsys}" = "mingw32"; then
2926 emacs_cv_netdb_declares_h_errno=yes
2928 AC_CACHE_CHECK(whether netdb declares h_errno,
2929 emacs_cv_netdb_declares_h_errno,
2930 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2931 [[return h_errno;]])],
2932 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2933 if test $emacs_cv_netdb_declares_h_errno = yes; then
2934 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2937 # sqrt and other floating-point functions such as fmod and frexp
2938 # are found in -lm on most systems, but mingw32 doesn't use -lm.
2939 if test "${opsys}" != "mingw32"; then
2940 AC_CHECK_LIB(m, sqrt)
2943 # Check for mail-locking functions in a "mail" library. Probably this should
2944 # have the same check as for liblockfile below.
2945 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2946 if test $have_mail = yes; then
2948 LIBS="$LIBS_MAIL $LIBS"
2949 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2953 dnl Debian, at least:
2954 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2955 if test $have_lockfile = yes; then
2956 LIBS_MAIL=-llockfile
2957 LIBS="$LIBS_MAIL $LIBS"
2958 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2960 # If we have the shared liblockfile, assume we must use it for mail
2961 # locking (e.g. Debian). If we couldn't link against liblockfile
2962 # (no liblockfile.a installed), ensure that we don't need to.
2963 dnl This works for files generally, not just executables.
2964 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2965 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2966 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2967 if test $ac_cv_prog_liblockfile = yes; then
2968 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2969 This probably means that movemail could lose mail.
2970 There may be a `development' package to install containing liblockfile.])
2973 AC_CHECK_HEADERS_ONCE(maillock.h)
2976 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2977 ## interlock access to the mail spool. The alternative is a lock file named
2978 ## /usr/spool/mail/$USER.lock.
2981 aix4-2) mail_lock="lockf" ;;
2983 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2985 ## On GNU/Linux systems, both methods are used by various mail programs.
2986 ## I assume most people are using newer mailers that have heard of flock.
2987 ## Change this if you need to.
2988 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2989 ## configure gets the right answers, and that means *NOT* using flock.
2990 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2991 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2992 ## Debian maintainer hasn't provided a clean fix for Emacs.
2993 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2994 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2995 ## correct logic. -- fx
2996 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2997 ## liblockfile is a Free Software replacement for libmail, used on
2998 ## Debian systems and elsewhere. -rfr.
3001 if test $have_mail = yes || test $have_lockfile = yes; then
3002 test $ac_cv_header_maillock_h = yes && mail_lock=no
3008 case "$mail_lock" in
3009 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3011 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3013 *) BLESSMAIL_TARGET="need-blessmail" ;;
3015 AC_SUBST(BLESSMAIL_TARGET)
3018 AC_CHECK_FUNCS(gethostname \
3019 getrusage get_current_dir_name \
3021 select getpagesize setlocale \
3022 utimes getrlimit setrlimit shutdown getaddrinfo \
3023 strsignal setitimer \
3024 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3025 gai_strerror mkstemp getline getdelim sync \
3026 difftime posix_memalign \
3027 getpwent endpwent getgrent endgrent \
3029 cfmakeraw cfsetspeed copysign __executable_start)
3031 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3032 ## has a broken `rint' in some library versions including math library
3033 ## version number A.09.05.
3034 ## You can fix the math library by installing patch number PHSS_4630.
3035 ## But we can fix it more reliably for Emacs by just not using rint.
3036 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3039 *) AC_CHECK_FUNCS(random rint) ;;
3042 dnl Cannot use AC_CHECK_FUNCS
3043 AC_CACHE_CHECK([for __builtin_unwind_init],
3044 emacs_cv_func___builtin_unwind_init,
3045 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3046 emacs_cv_func___builtin_unwind_init=yes,
3047 emacs_cv_func___builtin_unwind_init=no)])
3048 if test $emacs_cv_func___builtin_unwind_init = yes; then
3049 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3050 [Define to 1 if you have the `__builtin_unwind_init' function.])
3053 AC_CHECK_HEADERS_ONCE(sys/un.h)
3058 AC_CHECK_FUNCS(grantpt)
3060 # PTY-related GNU extensions.
3061 AC_CHECK_FUNCS(getpt posix_openpt)
3063 # Check this now, so that we will NOT find the above functions in ncurses.
3064 # That is because we have not set up to link ncurses in lib-src.
3065 # It's better to believe a function is not available
3066 # than to expect to find it in ncurses.
3067 # Also we need tputs and friends to be able to build at all.
3068 AC_MSG_CHECKING([for library containing tputs])
3069 # Run a test program that contains a call to tputs, a call that is
3070 # never executed. This tests whether a pre-'main' dynamic linker
3071 # works with the library. It's too much trouble to actually call
3072 # tputs in the test program, due to portability hassles. When
3073 # cross-compiling, assume the test program will run if it links.
3074 AC_DEFUN([tputs_link_source], [
3076 [[extern void tputs (const char *, int, int (*)(int));
3077 int main (int argc, char **argv)
3080 tputs (argv[0], 0, 0);
3084 if test "${opsys}" = "mingw32"; then
3087 # Maybe curses should be tried earlier?
3088 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3089 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3091 if test -z "$tputs_library"; then
3095 LIBS_TERMCAP=-l$tputs_library
3097 LIBS="$LIBS_TERMCAP $LIBS"
3099 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3100 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3102 if test "X$msg" != Xno; then
3107 AC_MSG_RESULT([$msg])
3108 if test "X$msg" = Xno; then
3109 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3110 The following libraries were tried (in order):
3111 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3112 Please try installing whichever of these libraries is most appropriate
3113 for your system, together with its header files.
3114 For example, a libncurses-dev(el) or similar package.])
3117 ## Use termcap instead of terminfo?
3118 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3120 ## FIXME? In the cases below where we unconditionally set
3121 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3122 ## if that was found above to have tputs.
3123 ## Should we use the gnu* logic everywhere?
3125 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3126 ## The ncurses library has been moved out of the System framework in
3127 ## Mac OS X 10.2. So if configure detects it, set the command-line
3128 ## option to use it.
3129 darwin) LIBS_TERMCAP="-lncurses" ;;
3131 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3134 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3135 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3136 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3137 [[#if __FreeBSD_version < 400000
3140 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3142 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3144 if test $emacs_cv_freebsd_terminfo = yes; then
3145 LIBS_TERMCAP="-lncurses"
3148 LIBS_TERMCAP="-ltermcap"
3158 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3160 LIBS_TERMCAP="-ltermcap"
3164 openbsd) LIBS_TERMCAP="-lncurses" ;;
3166 ## hpux: Make sure we get select from libc rather than from libcurses
3167 ## because libcurses on HPUX 10.10 has a broken version of select.
3168 ## We used to use -lc -lcurses, but this may be cleaner.
3169 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3170 # set that way, now it uses the default). Isn't this a contradiction?
3171 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3175 TERMCAP_OBJ=tparam.o
3176 if test $TERMINFO = yes; then
3177 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3178 TERMCAP_OBJ=terminfo.o
3180 AC_SUBST(LIBS_TERMCAP)
3181 AC_SUBST(TERMCAP_OBJ)
3184 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3185 # On Darwin, res_init appears not to be useful: see bug#562 and
3186 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3189 if test $opsys != darwin; then
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 if test "$have_res_init" = no; then
3198 LIBS="$LIBS -lresolv"
3199 AC_MSG_CHECKING(for res_init with -lresolv)
3200 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3201 #include <arpa/nameser.h>
3202 #include <resolv.h>]],
3203 [[return res_init();]])],
3204 have_res_init=yes, have_res_init=no)
3205 AC_MSG_RESULT($have_res_init)
3206 if test "$have_res_init" = yes ; then
3212 if test "$have_res_init" = yes; then
3213 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3217 # Do we need the Hesiod library to provide the support routines?
3218 dnl FIXME? Should we be skipping this on Darwin too?
3220 if test "$with_hesiod" != no ; then
3221 # Don't set $LIBS here -- see comments above. FIXME which comments?
3222 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3223 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3224 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3225 if test "$resolv" = yes ; then
3230 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3231 hesiod=yes, :, $RESOLVLIB)])
3233 if test x"$hesiod" = xyes; then
3234 AC_DEFINE(HAVE_LIBHESIOD, 1,
3235 [Define to 1 if you have the hesiod library (-lhesiod).])
3241 # Do we need libresolv (due to res_init or Hesiod)?
3242 if test "$resolv" = yes && test $opsys != darwin; then
3243 AC_DEFINE(HAVE_LIBRESOLV, 1,
3244 [Define to 1 if you have the resolv library (-lresolv).])
3251 # These tell us which Kerberos-related libraries to use.
3258 if test "${with_kerberos}" != no; then
3259 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3260 if test $have_com_err = yes; then
3261 COM_ERRLIB=-lcom_err
3262 LIBS="$COM_ERRLIB $LIBS"
3263 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3265 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3266 if test $have_crypto = yes; then
3268 LIBS="$CRYPTOLIB $LIBS"
3269 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3271 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3272 if test $have_k5crypto = yes; then
3273 CRYPTOLIB=-lk5crypto
3274 LIBS="$CRYPTOLIB $LIBS"
3275 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3277 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3278 if test $have_krb5=yes; then
3280 LIBS="$KRB5LIB $LIBS"
3281 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3283 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3284 if test "${with_kerberos5}" = no; then
3285 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3286 if test $have_des425 = yes; then
3288 LIBS="$DESLIB $LIBS"
3289 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3291 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3292 if test $have_des = yes; then
3294 LIBS="$DESLIB $LIBS"
3295 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3298 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3299 if test $have_krb4 = yes; then
3301 LIBS="$KRB4LIB $LIBS"
3302 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3304 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3305 if test $have_krb = yes; then
3307 LIBS="$KRB4LIB $LIBS"
3308 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3313 if test "${with_kerberos5}" != no; then
3314 AC_CHECK_HEADERS(krb5.h,
3315 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3316 [#include <krb5.h>])])
3318 AC_CHECK_HEADERS(des.h,,
3319 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3320 [AC_CHECK_HEADERS(kerberos/des.h)])])
3321 AC_CHECK_HEADERS(krb.h,,
3322 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3323 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3325 AC_CHECK_HEADERS(com_err.h)
3328 AC_SUBST(COM_ERRLIB)
3334 AC_CHECK_FUNCS_ONCE(tzset)
3335 AC_MSG_CHECKING(whether localtime caches TZ)
3336 AC_CACHE_VAL(emacs_cv_localtime_cache,
3337 [if test x$ac_cv_func_tzset = xyes; then
3338 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3339 char TZ_GMT0[] = "TZ=GMT0";
3340 char TZ_PST8[] = "TZ=PST8";
3343 time_t now = time ((time_t *) 0);
3344 int hour_GMT0, hour_unset;
3345 if (putenv (TZ_GMT0) != 0)
3347 hour_GMT0 = localtime (&now)->tm_hour;
3349 hour_unset = localtime (&now)->tm_hour;
3350 if (putenv (TZ_PST8) != 0)
3352 if (localtime (&now)->tm_hour == hour_GMT0)
3355 if (localtime (&now)->tm_hour != hour_unset)
3358 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3359 [# If we have tzset, assume the worst when cross-compiling.
3360 emacs_cv_localtime_cache=yes])
3362 # If we lack tzset, report that localtime does not cache TZ,
3363 # since we can't invalidate the cache if we don't have tzset.
3364 emacs_cv_localtime_cache=no
3366 AC_MSG_RESULT($emacs_cv_localtime_cache)
3367 if test $emacs_cv_localtime_cache = yes; then
3368 AC_DEFINE(LOCALTIME_CACHE, 1,
3369 [Define to 1 if localtime caches TZ.])
3373 AC_CHECK_FUNC(socket, , ok_so_far=no)
3374 if test $ok_so_far = yes; then
3375 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3377 if test $ok_so_far = yes; then
3378 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3380 if test $ok_so_far = yes; then
3381 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3382 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3383 [Define to 1 if you have inet sockets.])
3386 if test -f /usr/lpp/X11/bin/smt.exp; then
3387 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3388 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3391 AC_MSG_CHECKING(whether system supports dynamic ptys)
3392 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3394 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3399 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3400 dnl This can be removed once we assume Autoconf 2.70.
3402 *-solaris2.4 | *-solaris2.4.*)
3403 dnl Disable the Autoconf-generated vfork test.
3404 : ${ac_cv_func_vfork_works=no};;
3409 AC_CHECK_FUNCS(snprintf)
3411 dnl Adapted from Haible's version.
3412 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3413 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3414 [[char* cs = nl_langinfo(CODESET);]])],
3415 emacs_cv_langinfo_codeset=yes,
3416 emacs_cv_langinfo_codeset=no)
3418 if test $emacs_cv_langinfo_codeset = yes; then
3419 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3420 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3425 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3426 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3427 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3428 if test "$emacs_cv_c_restrict_arr" = yes; then
3429 AC_DEFINE(__restrict_arr, __restrict,
3430 [Define to compiler's equivalent of C99 restrict keyword in array
3431 declarations. Define as empty for no equivalent.])
3434 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3435 dnl how the tty code is related to POSIX and/or other versions of termios.
3436 dnl The following looks like a useful start.
3438 dnl AC_SYS_POSIX_TERMIOS
3439 dnl if test $ac_cv_sys_posix_termios = yes; then
3440 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3441 dnl and macros for terminal control.])
3442 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3445 dnl Turned on June 1996 supposing nobody will mind it.
3446 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3447 if test "${opsys}" != "mingw32"; then
3448 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3449 in the full name stands for the login id.])
3452 dnl Every platform that uses configure supports this.
3453 dnl There is a create-lockfiles option you can
3454 dnl customize if you do not want the lock files to be written.
3455 dnl So it is not clear that this #define still needs to exist.
3456 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3457 so that Emacs can tell instantly when you try to modify a file that
3458 someone else has modified in his/her Emacs.])
3460 dnl Everybody supports this, except MS.
3461 dnl Seems like the kind of thing we should be testing for, though.
3462 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3463 if test "${opsys}" != "mingw32"; then
3464 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3467 dnl Everybody supports this, except MS-DOS.
3468 dnl Seems like the kind of thing we should be testing for, though.
3469 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3470 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3471 4.2-compatible sockets.])
3473 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3475 if test "${opsys}" = "mingw32"; then
3476 AC_DEFINE(NULL_DEVICE, ["NUL:"], [Name of the file to open to get
3477 a null file, or a data sink.])
3479 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3480 a null file, or a data sink.])
3483 if test "${opsys}" = "mingw32"; then
3484 AC_DEFINE(SEPCHAR, [';'], [Character that separates PATH elements.])
3486 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3489 dnl Everybody supports this, except MS-DOS.
3490 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3492 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3495 AC_DEFINE(DIRECTORY_SEP, ['/'],
3496 [Character that separates directories in a file name.])
3498 if test "${opsys}" = "mingw32"; then
3499 dnl Only used on MS platforms.
3500 AC_DEFINE(DEVICE_SEP, ':', [Character that separates a device in a file name.])
3501 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == DEVICE_SEP)],
3502 [Returns true if character is a device separator.])
3504 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3505 [Returns true if character is a directory separator.])
3507 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3508 [Returns true if character is any form of separator.])
3510 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3512 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3513 [Returns true if character is a device separator.])
3515 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3516 [Returns true if character is a directory separator.])
3518 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3519 [Returns true if character is any form of separator.])
3522 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3526 dnl Unfortunately without libXmu we cannot support EditRes.
3527 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3528 AC_DEFINE(NO_EDITRES, 1)
3533 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3534 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3535 AC_DEFINE(NO_EDITRES, 1)
3541 irix6-5 | sol2* | unixware )
3542 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3543 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3544 dnl need the constant to dimension an array. So wire in the appropriate
3546 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3550 emacs_broken_SIGIO=no
3553 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3554 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3555 hpux* | irix6-5 | openbsd | sol2* | unixware )
3556 emacs_broken_SIGIO=yes
3560 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3561 dnl the way this system works, libc functions that return malloced
3562 dnl memory use the libc malloc implementation. Calling xfree or
3563 dnl xrealloc on the results of such functions results in a crash.
3565 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3566 dnl but that does not currently work on this system.
3568 dnl It is possible to completely override the malloc implementation on
3569 dnl AIX, but that involves putting the malloc functions in a shared
3570 dnl library and setting the MALLOCTYPE environment variable to point to
3571 dnl that shared library.
3573 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3574 dnl to avoid a crash just use the Emacs implementation for that function.
3576 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3577 dnl of this file, so that we do not check for get_current_dir_name
3578 dnl on AIX. But that might be fragile if something else ends
3579 dnl up testing for get_current_dir_name as a dependency.
3580 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3581 get_current_dir_name should not be used.])
3585 dnl Circumvent a bug in FreeBSD. In the following sequence of
3586 dnl writes/reads on a PTY, read(2) returns bogus data:
3588 dnl write(2) 1022 bytes
3589 dnl write(2) 954 bytes, get EAGAIN
3590 dnl read(2) 1024 bytes in process_read_output
3591 dnl read(2) 11 bytes in process_read_output
3593 dnl That is, read(2) returns more bytes than have ever been written
3594 dnl successfully. The 1033 bytes read are the 1022 bytes written
3595 dnl successfully after processing (for example with CRs added if the
3596 dnl terminal is set up that way which it is here). The same bytes will
3597 dnl be seen again in a later read(2), without the CRs.
3598 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3599 work around an issue when reading from a PTY.])
3605 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3606 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3611 darwin | freebsd | netbsd | openbsd )
3612 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3613 close a pty to make it a controlling terminal (it is already a
3614 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3618 dnl FIXME Surely we can test for this rather than hard-code it.
3620 netbsd | openbsd) sound_device="/dev/audio" ;;
3621 *) sound_device="/dev/dsp" ;;
3625 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3626 [Name of the default sound device.])
3629 dnl Emacs can read input using SIGIO and buffering characters itself,
3630 dnl or using CBREAK mode and making C-g cause SIGINT.
3631 dnl The choice is controlled by the variable interrupt_input.
3633 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3635 dnl Emacs uses the presence of the USABLE_SIGIO macro
3636 dnl to indicate whether or not signal-driven I/O is possible. It uses
3637 dnl INTERRUPT_INPUT to decide whether to use it by default.
3639 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3640 dnl CBREAK mode has two disadvantages
3641 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3642 dnl I hear that in system V this problem does not exist.
3643 dnl 2) Control-G causes output to be discarded.
3644 dnl I do not know whether this can be fixed in system V.
3646 dnl Another method of doing input is planned but not implemented.
3647 dnl It would have Emacs fork off a separate process
3648 dnl to read the input and send it to the true Emacs process
3651 darwin | gnu-linux | gnu-kfreebsd )
3652 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3657 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3658 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3659 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3660 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3661 dnl taking float or double parameters.
3663 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3664 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3665 file defines `NeedWidePrototypes' as `NO'.])
3670 dnl Used in process.c, this must be a loop, even if it only runs once.
3671 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3672 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3673 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3674 dnl trying suffixes 0-16.
3675 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3676 first PTY, if PTYs are supported.])
3677 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3678 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3679 end of a PTY, if non-standard.])
3680 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3681 end of a PTY, if non-standard.])
3685 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3686 dnl You allocate a pty by opening /dev/ptc to get the master side.
3687 dnl To get the name of the slave side, you just ttyname() the master side.
3688 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3689 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3693 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3694 dnl multi-line AC_DEFINEs are hard. :(
3695 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)])
3696 AC_DEFINE(PTY_NAME_SPRINTF, [])
3697 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3700 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3702 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3703 dnl Not used, because PTY_ITERATION is defined.
3704 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3705 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3706 dnl But we don't have to block SIGCHLD because it is blocked in the
3707 dnl implementation of grantpt.
3708 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3709 AC_DEFINE(PTY_NAME_SPRINTF, [])
3710 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3714 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3717 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3719 if test "x$ac_cv_func_grantpt" = xyes; then
3720 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3721 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3722 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3723 dnl to prevent sigchld_handler from intercepting the child's death.
3724 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); }])
3725 dnl if HAVE_POSIX_OPENPT
3726 if test "x$ac_cv_func_posix_openpt" = xyes; then
3727 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3728 AC_DEFINE(PTY_NAME_SPRINTF, [])
3730 elif test "x$ac_cv_func_getpt" = xyes; then
3731 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3732 AC_DEFINE(PTY_NAME_SPRINTF, [])
3734 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3737 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3742 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3743 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3744 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3748 dnl It looks like this cannot be right, because it is not a loop.
3749 dnl However, process.c actually does this:
3755 dnl which presumably makes it OK, since irix == sgi (?).
3756 dnl FIXME it seems like this special treatment is unnecessary?
3757 dnl Why can't irix use a single-trip loop like eg cygwin?
3758 AC_DEFINE(PTY_ITERATION, [])
3759 dnl Not used, because PTY_ITERATION is defined.
3760 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3761 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); }])
3762 dnl No need to get the pty name at all.
3763 AC_DEFINE(PTY_NAME_SPRINTF, [])
3764 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3765 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3769 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3770 dnl from intercepting that death. If any child but grantpt's should die
3771 dnl within, it should be caught after sigrelse(2).
3772 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); }])
3776 dnl Comments are as per sol2*.
3777 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) 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); }])
3784 dnl This change means that we don't loop through allocate_pty too
3785 dnl many times in the (rare) event of a failure.
3786 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3787 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3788 dnl Push various streams modules onto a PTY channel. Used in process.c.
3789 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.])
3794 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3795 "typing" a signal character on the pty.])
3798 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3799 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3800 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd | darwin )
3801 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3804 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3805 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3806 gnu-linux | gnu-kfreebsd )
3808 AC_MSG_CHECKING([for signals via characters])
3809 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3810 #include <linux/version.h>
3811 #if LINUX_VERSION_CODE < 0x20400
3812 # error "Linux version too old"
3814 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3816 AC_MSG_RESULT([$emacs_signals_via_chars])
3817 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3822 dnl Used in lisp.h, emacs.c, vm-limit.c
3823 dnl NEWS.18 describes this as "a number which contains
3824 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3825 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3826 stored in a Lisp_Object.])
3827 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3831 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
3832 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
3835 dnl The data segment on this machine always starts at address 0x40000000.
3836 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3839 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3844 AH_TEMPLATE(TAB3, [Undocumented.])
3847 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3849 gnu | freebsd | netbsd | openbsd )
3850 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3851 AC_DEFINE(TAB3, OXTABS)
3854 gnu-linux | gnu-kfreebsd )
3855 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3859 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3860 [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)],
3861 [Mark a secondary stack, like the register stack on the ia64.]), [])
3865 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3866 run_time_remap; for HPUX.])
3871 dnl This won't be used automatically yet. We also need to know, at least,
3872 dnl that the stack is continuous.
3873 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3874 registers relevant for conservative garbage collection in the jmp_buf.])
3878 dnl Not all the architectures are tested, but there are Debian packages
3879 dnl for SCM and/or Guile on them, so the technique must work. See also
3880 dnl comments in alloc.c concerning setjmp and gcc.
3881 dnl Fixme: it's probably safe to just use the GCC conditional below.
3882 gnu-linux | gnu-kfreebsd )
3883 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3884 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3885 || defined __alpha__ || defined __mips__ || defined __s390__ \
3886 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3887 || defined __ia64__ || defined __sh__
3890 # error "setjmp not known to work on this arch"
3892 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
3897 if test x$GCC = xyes; then
3898 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3899 AC_DEFINE(GC_SETJMP_WORKS, 1)
3902 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3903 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3904 AC_DEFINE(GC_SETJMP_WORKS, 1)
3909 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
3910 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3913 [[#include <setjmp.h>
3915 # define _longjmp longjmp
3920 _longjmp (j, 1);]])],
3921 [emacs_cv_func__setjmp=yes],
3922 [emacs_cv_func__setjmp=no])])
3923 if test $emacs_cv_func__setjmp = yes; then
3924 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3926 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3929 [[#include <setjmp.h>
3932 if (! sigsetjmp (j, 1))
3933 siglongjmp (j, 1);]])],
3934 [emacs_cv_func_sigsetjmp=yes],
3935 [emacs_cv_func_sigsetjmp=no])])
3936 if test $emacs_cv_func_sigsetjmp = yes; then
3937 AC_DEFINE([HAVE_SIGSETJMP], 1,
3938 [Define to 1 if sigsetjmp and siglongjmp work.
3939 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3945 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3946 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3947 dnl and this is all we need.
3948 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3955 dnl Used in xfaces.c.
3956 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3957 some systems, where it requires time.h.])
3962 dnl Define symbols to identify the version of Unix this is.
3963 dnl Define all the symbols that apply correctly.
3964 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3965 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3966 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3967 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3968 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3974 dnl This symbol should be defined on AIX Version 3 ???????
3975 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3977 # error "_AIX not defined"
3979 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3983 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3987 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
3988 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
3989 dnl distinguish OS X from pure Darwin.
3990 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3993 gnu-linux | gnu-kfreebsd )
3995 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4001 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4007 AC_DEFINE(USG5_4, [])
4008 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4012 AC_DEFINE(DOS_NT, [])
4013 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4019 AC_DEFINE(USG5_4, [])
4020 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4026 AC_DEFINE(USG5_4, [])
4030 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4033 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4034 emacs_cv_usable_FIONREAD=no
4038 emacs_cv_usable_FIONREAD=yes
4043 [AC_LANG_PROGRAM([[#include <sys/types.h>
4044 #include <sys/ioctl.h>
4046 # include <sys/filio.h>
4049 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4050 [emacs_cv_usable_FIONREAD=yes],
4051 [emacs_cv_usable_FIONREAD=no])
4054 if test $emacs_cv_usable_FIONREAD = yes; then
4055 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4057 if test $emacs_broken_SIGIO = no; then
4058 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4060 [AC_LANG_PROGRAM([[#include <fcntl.h>
4063 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4064 [emacs_cv_usable_SIGIO=yes],
4065 [emacs_cv_usable_SIGIO=no])],
4066 [emacs_cv_usable_SIGIO=yes],
4067 [emacs_cv_usable_SIGIO=no])
4068 if test $emacs_cv_usable_SIGIO = yes; then
4069 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4076 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4077 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4078 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4079 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4081 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4082 G_SLICE environment variable to "always-malloc" at startup, if
4087 dnl It works to open the pty's tty in the parent (Emacs), then
4088 dnl close and reopen it in the child.
4089 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4090 works to open a pty's tty in the parent process, then close and
4091 reopen it in the child.])
4095 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4096 use VSUSP instead of VSWTCH.])
4100 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4105 # Set up the CFLAGS for real compilation, so we can substitute it.
4106 CFLAGS="$REAL_CFLAGS"
4107 CPPFLAGS="$REAL_CPPFLAGS"
4109 ## Hack to detect a buggy GCC version.
4110 if test "x$GCC" = xyes \
4111 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4112 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4113 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4114 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4117 version=$PACKAGE_VERSION
4119 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4120 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4121 [Short copyright string for this version of Emacs.])
4124 ### Specify what sort of things we'll be editing into Makefile and config.h.
4125 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4127 AC_SUBST(configuration)
4132 AC_SUBST(exec_prefix)
4135 AC_SUBST(sharedstatedir)
4136 AC_SUBST(libexecdir)
4141 AC_SUBST(standardlisppath)
4142 AC_SUBST(locallisppath)
4144 AC_SUBST(x_default_search_path)
4146 AC_SUBST(archlibdir)
4151 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4152 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4153 ## end of LIBX_BASE, but nothing ever set it.
4154 AC_SUBST(LD_SWITCH_X_SITE)
4155 AC_SUBST(C_SWITCH_X_SITE)
4156 AC_SUBST(GNUSTEP_CFLAGS)
4158 ## Used in lwlib/Makefile.in.
4159 AC_SUBST(X_TOOLKIT_TYPE)
4161 AC_SUBST(ns_appbindir)
4162 AC_SUBST(ns_appresdir)
4164 AC_SUBST(GNU_OBJC_CFLAGS)
4165 AC_SUBST(OTHER_FILES)
4167 if test -n "${term_header}"; then
4168 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4169 [Define to the header for the built-in window system.])
4172 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4173 [Define to the canonical Emacs configuration name.])
4174 dnl Replace any embedded " characters (bug#13274).
4175 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g"`
4176 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4177 [Define to the options passed to configure.])
4178 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4179 define this to include extra configuration information.])
4183 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4190 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4191 AC_DEFINE(HAVE_X_WINDOWS, 1,
4192 [Define to 1 if you want to use the X window system.])
4194 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4196 if test "$HAVE_XFT" = "yes"; then
4197 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4198 elif test "$HAVE_FREETYPE" = "yes"; then
4199 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4209 if test "${USE_X_TOOLKIT}" != "none" ; then
4211 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4212 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4213 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4214 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4215 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4219 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4220 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4224 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4225 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4226 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4230 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4231 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4234 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4237 AC_SUBST(WIDGET_OBJ)
4240 case "$USE_X_TOOLKIT" in
4241 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4242 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4243 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4245 AC_SUBST(TOOLKIT_LIBW)
4247 if test "${opsys}" != "mingw32"; then
4248 if test "$USE_X_TOOLKIT" = "none"; then
4249 LIBXT_OTHER="\$(LIBXSM)"
4250 OLDXMENU_TARGET="really-oldXMenu"
4252 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4253 OLDXMENU_TARGET="really-lwlib"
4256 AC_SUBST(LIBXT_OTHER)
4258 ## The X Menu stuff is present in the X10 distribution, but missing
4259 ## from X11. If we have X10, just use the installed library;
4260 ## otherwise, use our own copy.
4261 if test "${HAVE_X11}" = "yes" ; then
4262 AC_DEFINE(HAVE_X11, 1,
4263 [Define to 1 if you want to use version 11 of X windows.
4264 Otherwise, Emacs expects to use version 10.])
4266 if test "$USE_X_TOOLKIT" = "none"; then
4267 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4269 OLDXMENU="\${lwlibdir}/liblw.a"
4271 LIBXMENU="\$(OLDXMENU)"
4272 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4273 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4275 ## For a syntactically valid Makefile; not actually used for anything.
4276 ## See comments in src/Makefile.in.
4278 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4279 if test "${HAVE_X_WINDOWS}" = "yes"; then
4288 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4295 AC_SUBST(OLDXMENU_TARGET)
4298 AC_SUBST(LIBX_OTHER)
4299 AC_SUBST(OLDXMENU_DEPS)
4301 if test "${HAVE_MENUS}" = "yes" ; then
4302 AC_DEFINE(HAVE_MENUS, 1,
4303 [Define to 1 if you have mouse menus.
4304 (This is automatic if you use X, but the option to specify it remains.)
4305 It is also defined with other window systems that support xmenu.c.])
4308 if test "${GNU_MALLOC}" = "yes" ; then
4309 AC_DEFINE(GNU_MALLOC, 1,
4310 [Define to 1 if you want to use the GNU memory allocator.])
4314 if test "${REL_ALLOC}" = "yes" ; then
4315 AC_DEFINE(REL_ALLOC, 1,
4316 [Define REL_ALLOC if you want to use the relocating allocator for
4319 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4321 AC_SUBST(RALLOC_OBJ)
4323 if test "$opsys" = "cygwin"; then
4324 CYGWIN_OBJ="sheap.o cygw32.o"
4325 ## Cygwin differs because of its unexec().
4327 POST_ALLOC_OBJ=lastfile.o
4328 elif test "$opsys" = "mingw32"; then
4331 POST_ALLOC_OBJ=lastfile.o
4334 PRE_ALLOC_OBJ=lastfile.o
4337 AC_SUBST(CYGWIN_OBJ)
4338 AC_SUBST(PRE_ALLOC_OBJ)
4339 AC_SUBST(POST_ALLOC_OBJ)
4341 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4342 # it temporarily reverts them to their pre-pkg-config values,
4343 # because gnulib needs to work with both src (which uses the
4344 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4345 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4346 # and it therefore needs to run in an environment where LIBS does not
4347 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4348 # for some package unrelated to lib-src.
4351 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4352 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4353 gl_ASSERT_NO_GNULIB_POSIXCHECK
4354 gl_ASSERT_NO_GNULIB_TESTS
4359 if test "${opsys}" = "mingw32"; then
4360 CPPFLAGS="-DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4361 # Remove unneeded switches from the value of CC that goes to Makefiles
4362 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4366 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4369 ## The -headerpad option tells ld (see man page) to leave room at the
4370 ## end of the header for adding load commands. Needed for dumping.
4371 ## 0x690 is the total size of 30 segment load commands (at 56
4372 ## each); under Cocoa 31 commands are required.
4373 if test "$HAVE_NS" = "yes"; then
4374 libs_nsgui="-framework AppKit"
4380 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4382 ## This is here because src/Makefile.in did some extra fiddling around
4383 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4384 ## LD_SWITCH_SYSTEM_TEMACS instead,
4385 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4386 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4389 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4390 ## find X at run-time.
4391 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4392 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4393 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4394 ## had different values in configure (in ac_link) and src/Makefile.in.
4395 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4396 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4399 LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-subsystem,console -Wl,-entry,__start -Wl,-Map,./temacs.map"
4402 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4405 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4407 ## Common for all window systems
4408 if test "$window_system" != "none"; then
4409 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4410 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4413 AC_SUBST(WINDOW_SYSTEM_OBJ)
4415 AH_TOP([/* GNU Emacs site configuration template file.
4417 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4418 Free Software Foundation, Inc.
4420 This file is part of GNU Emacs.
4422 GNU Emacs is free software: you can redistribute it and/or modify
4423 it under the terms of the GNU General Public License as published by
4424 the Free Software Foundation, either version 3 of the License, or
4425 (at your option) any later version.
4427 GNU Emacs is distributed in the hope that it will be useful,
4428 but WITHOUT ANY WARRANTY; without even the implied warranty of
4429 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4430 GNU General Public License for more details.
4432 You should have received a copy of the GNU General Public License
4433 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4436 /* No code in Emacs #includes config.h twice, but some bits of code
4437 intended to work with other packages as well (like gmalloc.c)
4438 think they can include it as many times as they like. */
4439 #ifndef EMACS_CONFIG_H
4440 #define EMACS_CONFIG_H
4443 AH_BOTTOM([#include <conf_post.h>
4445 #endif /* EMACS_CONFIG_H */
4454 #### Report on what we decided to do.
4455 #### Report GTK as a toolkit, even if it doesn't use Xt.
4456 #### It makes printing result more understandable as using GTK sets
4457 #### toolkit_scroll_bars to yes by default.
4458 if test "${HAVE_GTK}" = "yes"; then
4459 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4463 Configured for \`${canonical}'.
4465 Where should the build process find the source code? ${srcdir}
4466 What compiler should emacs be built with? ${CC} ${CFLAGS}
4467 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4468 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4469 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4470 What window system should Emacs use? ${window_system}
4471 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4473 if test -n "${x_includes}"; then
4474 echo " Where do we find X Windows header files? ${x_includes}"
4476 echo " Where do we find X Windows header files? Standard dirs"
4478 if test -n "${x_libraries}"; then
4479 echo " Where do we find X Windows libraries? ${x_libraries}"
4481 echo " Where do we find X Windows libraries? Standard dirs"
4484 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4485 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4486 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4487 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4488 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4489 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4490 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4491 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4493 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4494 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4495 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4496 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4497 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4498 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4499 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4501 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4502 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4503 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4504 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4506 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4509 if test -n "${EMACSDATA}"; then
4510 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4512 if test -n "${EMACSDOC}"; then
4513 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4518 if test "$HAVE_NS" = "yes"; then
4520 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4521 The installed application will go to nextstep/Emacs.app and can be
4522 run or moved from there."
4523 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4524 echo "The application will be fully self-contained."
4526 echo "The lisp resources for the application will be installed under ${prefix}.
4527 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4528 to run if these resources are not installed."
4533 if test "${opsys}" = "cygwin"; then
4535 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4541 # Remove any trailing slashes in these variables.
4542 [test "${prefix}" != NONE &&
4543 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4544 test "${exec_prefix}" != NONE &&
4545 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4547 if test "$HAVE_NS" = "yes"; then
4548 if test "$NS_IMPL_GNUSTEP" = yes; then
4549 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4550 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4552 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4553 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4557 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4558 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4559 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4560 dnl (else you get "no `Makefile.am' found for any configure output").
4561 dnl This will work, but you get a config.status that is not quite right
4562 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4563 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4564 dnl it seems better to just live with the duplication.
4565 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4567 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4568 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4569 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4570 leim/Makefile nextstep/Makefile])
4572 dnl test/ is not present in release tarfiles.
4573 opt_makefile=test/automated/Makefile
4575 if test -f "$srcdir/$opt_makefile.in"; then
4576 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4577 dnl Again, it's best not to use a variable. Though you can add
4578 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4579 AC_CONFIG_FILES([test/automated/Makefile])
4583 dnl admin/ may or may not be present.
4584 opt_makefile=admin/unidata/Makefile
4586 if test -f "$srcdir/$opt_makefile.in"; then
4587 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4588 AC_CONFIG_FILES([admin/unidata/Makefile])
4592 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4594 AC_SUBST(SUBDIR_MAKEFILES_IN)
4596 dnl Make the necessary directories, if they don't exist.
4597 AC_CONFIG_COMMANDS([mkdirs], [
4598 for dir in etc lisp ; do
4599 test -d ${dir} || mkdir ${dir}
4603 dnl You might wonder (I did) why epaths.h is generated by running make,
4604 dnl rather than just letting configure generate it from epaths.in.
4605 dnl One reason is that the various paths are not fully expanded (see above);
4606 dnl eg gamedir=${prefix}/var/games/emacs.
4607 dnl Secondly, the GNU Coding standards require that one should be able
4608 dnl to run `make prefix=/some/where/else' and override the values set
4609 dnl by configure. This also explains the `move-if-change' test and
4610 dnl the use of force in the `epaths-force' rule in Makefile.in.
4611 AC_CONFIG_COMMANDS([epaths], [
4612 echo creating src/epaths.h
4613 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4614 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4616 AC_CONFIG_COMMANDS([gdbinit], [
4617 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4618 echo creating src/.gdbinit
4619 echo "source $srcdir/src/.gdbinit" > src/.gdbinit