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 $with_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 "$with_wide_int" = yes; then
173 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
176 dnl _ON results in a '--without' option in the --help output, so
177 dnl the help text should refer to "don't compile", etc.
178 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
179 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
180 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
181 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
182 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
183 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
184 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
185 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
187 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
188 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
189 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
191 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
192 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
193 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
194 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
195 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
197 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
198 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
199 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
200 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
201 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
202 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
204 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
205 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
206 [ case "${withval}" in
207 y | ye | yes ) val=yes ;;
209 g | gf | gfi | gfil | gfile ) val=gfile ;;
210 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
211 w | w3 | w32 ) val=w32 ;;
212 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
213 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
214 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
215 otherwise for the first of `gfile' or `inotify' that is usable.])
218 with_file_notification=$val
220 [with_file_notification=$with_features])
222 ## For the times when you want to build Emacs but don't have
223 ## a suitable makeinfo, and can live without the manuals.
224 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
225 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
227 ## Makefile.in needs the cache file name.
230 ## This is an option because I do not know if all info/man support
231 ## compressed files, nor how to test if they do so.
232 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
233 if test $with_compress_info = yes; then
240 AC_ARG_WITH([pkg-config-prog],dnl
241 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
242 [file name of pkg-config for finding GTK and librsvg])])
243 if test "X${with_pkg_config_prog}" != X; then
244 if test "${with_pkg_config_prog}" != yes; then
245 PKG_CONFIG="${with_pkg_config_prog}"
249 AC_ARG_WITH(gameuser,dnl
250 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
251 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
252 && gameuser="${with_gameuser}"
253 test "X$gameuser" = X && gameuser=games
255 AC_ARG_WITH([gnustep-conf],dnl
256 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
257 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
258 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
259 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
260 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
261 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
263 AC_ARG_ENABLE(ns-self-contained,
264 [AS_HELP_STRING([--disable-ns-self-contained],
265 [disable self contained build under NeXTstep])],
266 EN_NS_SELF_CONTAINED=$enableval,
267 EN_NS_SELF_CONTAINED=yes)
269 AC_ARG_ENABLE(locallisppath,
270 [AS_HELP_STRING([--enable-locallisppath=PATH],
271 [directories Emacs should search for lisp files specific
273 if test "${enableval}" = "no"; then
275 elif test "${enableval}" != "yes"; then
276 locallisppath=${enableval}
279 AC_ARG_ENABLE(checking,
280 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
281 [enable expensive run-time checks. With LIST,
282 enable only specific categories of checks.
283 Categories are: all,yes,no.
284 Flags are: stringbytes, stringoverrun, stringfreelist,
285 xmallocoverrun, conslist, glyphs])],
286 [ac_checking_flags="${enableval}"],[])
287 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
288 for check in $ac_checking_flags
291 # these set all the flags to specific states
292 yes) ac_enable_checking=1 ;;
293 no) ac_enable_checking= ;
294 ac_gc_check_stringbytes= ;
295 ac_gc_check_string_overrun= ;
296 ac_gc_check_string_free_list= ;
297 ac_xmalloc_overrun= ;
298 ac_gc_check_cons_list= ;
300 all) ac_enable_checking=1 ;
301 ac_gc_check_stringbytes=1 ;
302 ac_gc_check_string_overrun=1 ;
303 ac_gc_check_string_free_list=1 ;
304 ac_xmalloc_overrun=1 ;
305 ac_gc_check_cons_list=1 ;
307 # these enable particular checks
308 stringbytes) ac_gc_check_stringbytes=1 ;;
309 stringoverrun) ac_gc_check_string_overrun=1 ;;
310 stringfreelist) ac_gc_check_string_free_list=1 ;;
311 xmallocoverrun) ac_xmalloc_overrun=1 ;;
312 conslist) ac_gc_check_cons_list=1 ;;
313 glyphs) ac_glyphs_debug=1 ;;
314 *) AC_MSG_ERROR(unknown check category $check) ;;
319 if test x$ac_enable_checking != x ; then
320 AC_DEFINE(ENABLE_CHECKING, 1,
321 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
323 if test x$ac_gc_check_stringbytes != x ; then
324 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
325 [Define this temporarily to hunt a bug. If defined, the size of
326 strings is redundantly recorded in sdata structures so that it can
327 be compared to the sizes recorded in Lisp strings.])
329 if test x$ac_gc_check_string_overrun != x ; then
330 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
331 [Define this to check for short string overrun.])
333 if test x$ac_gc_check_string_free_list != x ; then
334 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
335 [Define this to check the string free list.])
337 if test x$ac_xmalloc_overrun != x ; then
338 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
339 [Define this to check for malloc buffer overrun.])
341 if test x$ac_gc_check_cons_list != x ; then
342 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
343 [Define this to check for errors in cons list.])
345 if test x$ac_glyphs_debug != x ; then
346 AC_DEFINE(GLYPH_DEBUG, 1,
347 [Define this to enable glyphs debugging code.])
350 AC_ARG_ENABLE(check-lisp-object-type,
351 [AS_HELP_STRING([--enable-check-lisp-object-type],
352 [enable compile time checks for the Lisp_Object data type.
353 This is useful for development for catching certain types of bugs.])],
354 if test "${enableval}" != "no"; then
355 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
356 [Define this to enable compile time checks for the Lisp_Object data type.])
360 dnl The name of this option is unfortunate. It predates, and has no
361 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
362 dnl Actually, it stops it working.
363 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
364 AC_ARG_ENABLE(profiling,
365 [AS_HELP_STRING([--enable-profiling],
366 [build emacs with low-level, gprof profiling support.
367 Mainly useful for debugging Emacs itself. May not work on
368 all platforms. Stops profiler.el working.])],
369 [ac_enable_profiling="${enableval}"],[])
370 if test x$ac_enable_profiling != x ; then
371 PROFILING_CFLAGS="-DPROFILING=1 -pg"
375 AC_SUBST(PROFILING_CFLAGS)
377 AC_ARG_ENABLE(autodepend,
378 [AS_HELP_STRING([--enable-autodepend],
379 [automatically generate dependencies to .h-files.
380 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
382 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
384 AC_ARG_ENABLE(gtk-deprecation-warnings,
385 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
386 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
387 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
389 #### Make srcdir absolute, if it isn't already. It's important to
390 #### avoid running the file name through pwd unnecessarily, since pwd can
391 #### give you automounter prefixes, which can go away. We do all this
392 #### so Emacs can find its files when run uninstalled.
393 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
396 [[\\/]]* | ?:[[\\/]]*) ;;
398 ## We may be able to use the $PWD environment variable to make this
399 ## absolute. But sometimes PWD is inaccurate.
400 ## Note: we used to use $PWD at the end instead of `pwd`,
401 ## but that tested only for a well-formed and valid PWD,
402 ## it did not object when PWD was well-formed and valid but just wrong.
403 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
407 srcdir=`(cd "$srcdir"; pwd)`
410 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
413 ### Canonicalize the configuration name.
417 configuration=${host_alias-${build_alias-$host}}
419 dnl This used to use changequote, but, apart from `changequote is evil'
420 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
421 dnl the great gob of text. Thus it's not processed for possible expansion.
422 dnl Just make sure the brackets remain balanced.
424 dnl Since Emacs can't find matching pairs of quotes, boundaries are
425 dnl indicated by comments.
429 ### If you add support for a new configuration, add code to this
430 ### switch statement to recognize your configuration name and select
431 ### the appropriate operating system file.
433 ### You would hope that you could choose an s/*.h
434 ### file based on the operating system portion. However, it turns out
435 ### that each s/*.h file is pretty manufacturer-specific.
436 ### So we basically have to have a special case for each
437 ### configuration name.
439 ### As far as handling version numbers on operating systems is
440 ### concerned, make sure things will fail in a fixable way. If
441 ### /etc/MACHINES doesn't say anything about version numbers, be
442 ### prepared to handle anything reasonably. If version numbers
443 ### matter, be sure /etc/MACHINES says something about it.
446 case "${canonical}" in
448 ## GNU/Linux and similar ports
463 ## FreeBSD kernel + glibc based userland
478 ## Apple Darwin / Mac OS X
480 case "${canonical}" in
487 ## Use fink packages if available.
488 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
489 ## if test -d /sw/include && test -d /sw/lib; then
490 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
491 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
500 ## HP 9000 series 700 and 800, running HP/UX
504 hppa*-hp-hpux1[1-9]* )
506 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
510 rs6000-ibm-aix4.[23]* )
513 powerpc-ibm-aix4.[23]* )
516 rs6000-ibm-aix[56]* )
519 powerpc-ibm-aix[56]* )
523 ## Silicon Graphics machines
527 # Without defining _LANGUAGE_C, things get masked out in the headers
528 # so that, for instance, grepping for `free' in stdlib.h fails and
529 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
530 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
535 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
536 | x86_64-*-solaris2* | x86_64-*-sunos5*)
537 case "${canonical}" in
539 amd64-*-*|x86_64-*-*) ;;
543 case "${canonical}" in
544 *-sunos5.6* | *-solaris2.6* )
548 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
550 emacs_check_sunpro_c=yes
552 *-sunos5* | *-solaris* )
554 emacs_check_sunpro_c=yes
557 ## Watch out for a compiler that we know will not work.
558 case "${canonical}" in
559 *-solaris* | *-sunos5* )
560 if [ "x$CC" = x/usr/ucb/cc ]; then
561 ## /usr/ucb/cc doesn't work;
562 ## we should find some other compiler that does work.
570 ## Intel 386 machines where we don't care about the manufacturer.
572 case "${canonical}" in
573 *-darwin* ) opsys=darwin ;;
576 # MinGW overrides and adds some system headers in nt/inc.
577 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
579 *-sysv4.2uw* ) opsys=unixware ;;
580 *-sysv5uw* ) opsys=unixware ;;
581 *-sysv5OpenUNIX* ) opsys=unixware ;;
582 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
591 ### If the code above didn't choose an operating system, just choose
592 ### an operating system based on the configuration name. You really
593 ### only want to use this when you have no idea what the right
594 ### operating system is; if you know what operating systems a machine
595 ### runs, it's cleaner to make it explicit in the case statement
597 if test x"${opsys}" = x; then
598 case "${canonical}" in
599 *-gnu* ) opsys=gnu ;;
609 if test $unported = yes; then
610 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
611 Check `etc/MACHINES' for recognized configuration names.])
615 #### Choose a compiler.
617 dnl Sets GCC=yes if using gcc.
621 if test x$GCC = xyes; then
622 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
624 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
627 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
628 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
629 dnl that clash with MinGW.
630 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
632 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
633 # as we don't use them.
634 AC_DEFUN([gl_FCNTL_O_FLAGS])
635 # Avoid gnulib's threadlib module, as we do threads our own way.
636 AC_DEFUN([gl_THREADLIB])
638 # Initialize gnulib right after choosing the compiler.
639 dnl Amongst other things, this sets AR and ARFLAGS.
642 if test "$ac_test_CFLAGS" != set; then
643 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
644 # if -g3 works and the user does not specify CFLAGS.
645 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
648 emacs_g3_CFLAGS='-g3';;
650 emacs_g3_CFLAGS='-g3 -O2';;
654 if test -n "$emacs_g3_CFLAGS"; then
655 emacs_save_CFLAGS=$CFLAGS
656 CFLAGS=$emacs_g3_CFLAGS
657 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
658 [emacs_cv_prog_cc_g3],
659 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
660 [emacs_cv_prog_cc_g3=yes],
661 [emacs_cv_prog_cc_g3=no])])
662 if test $emacs_cv_prog_cc_g3 != yes; then
663 CFLAGS=$emacs_save_CFLAGS
665 if test $opsys = mingw32; then
666 CFLAGS="$CFLAGS -gdwarf-2"
673 # No optimization flag was inferred for this non-GCC compiler.
674 # Try -O. This is needed for xlc on AIX; see Bug#14258.
675 emacs_save_CFLAGS=$CFLAGS
676 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
678 AC_CACHE_CHECK([whether $CC accepts -O],
679 [emacs_cv_prog_cc_o],
680 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
681 [emacs_cv_prog_cc_o=yes],
682 [emacs_cv_prog_cc_o=no])])
683 if test $emacs_cv_prog_cc_o != yes; then
684 CFLAGS=$emacs_save_CFLAGS
689 AC_ARG_ENABLE([gcc-warnings],
690 [AS_HELP_STRING([--enable-gcc-warnings],
691 [turn on lots of GCC warnings/errors. This is intended for
692 developers, and may generate false alarms when used
693 with older or non-GNU development tools.])],
696 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
698 gl_gcc_warnings=$enableval],
702 AC_ARG_ENABLE(link-time-optimization,
703 [AS_HELP_STRING([--enable-link-time-optimization],
704 [build emacs with link-time optimization.
705 This is supported only for GCC since 4.5.0.])],
706 if test "${enableval}" != "no"; then
707 AC_MSG_CHECKING([whether link-time optimization is supported])
709 if test x$GCC = xyes; then
710 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
711 if test x$CPUS != x; then
717 CFLAGS="$CFLAGS $LTO"
718 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
719 [ac_lto_supported=yes], [ac_lto_supported=no])
722 AC_MSG_RESULT([$ac_lto_supported])
723 if test "$ac_lto_supported" = "yes"; then
724 CFLAGS="$CFLAGS $LTO"
728 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
729 # ------------------------------------------------
730 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
731 # Otherwise, run RUN-IF-NOT-FOUND.
732 AC_DEFUN([gl_GCC_VERSION_IFELSE],
736 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
739 # error "your version of gcc is older than $1.$2"
746 # When compiling with GCC, prefer -isystem to -I when including system
747 # include files, to avoid generating useless diagnostics for the files.
748 if test "$gl_gcc_warnings" != yes; then
753 # This, $nw, is the list of warnings we disable.
756 case $with_x_toolkit in
757 lucid | athena | motif)
758 # Old toolkits mishandle 'const'.
759 nw="$nw -Wwrite-strings"
762 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
765 AC_SUBST([WERROR_CFLAGS])
767 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
768 nw="$nw -Woverlength-strings" # Not a problem these days
769 nw="$nw -Wlogical-op" # any use of fwrite provokes this
770 nw="$nw -Wformat-nonliteral" # we do this a lot
771 nw="$nw -Wvla" # warnings in gettext.h
772 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
773 nw="$nw -Wswitch-default" # Too many warnings for now
774 nw="$nw -Winline" # OK to ignore 'inline'
775 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
776 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
777 # signed overflow has undefined behavior
778 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
779 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
780 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
782 # Emacs doesn't care about shadowing; see
783 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
786 # Emacs's use of alloca inhibits protecting the stack.
787 nw="$nw -Wstack-protector"
789 # The following line should be removable at some point.
790 nw="$nw -Wsuggest-attribute=pure"
792 # clang is unduly picky about some things.
793 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
800 [emacs_cv_clang=yes],
801 [emacs_cv_clang=no])])
802 if test $emacs_cv_clang = yes; then
803 nw="$nw -Wcast-align"
806 gl_MANYWARN_ALL_GCC([ws])
807 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
811 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
812 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
813 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
814 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
815 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
816 gl_WARN_ADD([-Wno-format-nonliteral])
818 # In spite of excluding -Wlogical-op above, it is enabled, as of
819 # gcc 4.5.0 20090517.
820 gl_WARN_ADD([-Wno-logical-op])
822 # More things that clang is unduly picky about.
823 if test $emacs_cv_clang = yes; then
824 gl_WARN_ADD([-Wno-format-extra-args])
825 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
826 gl_WARN_ADD([-Wno-unused-command-line-argument])
827 gl_WARN_ADD([-Wno-unused-value])
830 gl_WARN_ADD([-fdiagnostics-show-option])
831 gl_WARN_ADD([-funit-at-a-time])
833 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
834 AH_VERBATIM([FORTIFY_SOURCE],
835 [/* Enable compile-time and run-time bounds-checking, and some warnings,
836 without upsetting glibc 2.15+. */
837 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
838 # define _FORTIFY_SOURCE 2
841 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
843 # We use a slightly smaller set of warning options for lib/.
844 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
846 nw="$nw -Wunused-macros"
848 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
849 AC_SUBST([GNULIB_WARN_CFLAGS])
854 dnl Some other nice autoconf tests.
855 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
858 dnl if test "x$RANLIB" = x; then
863 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
864 dnl can be made to directories. This is not relevant for our usage, and
865 dnl excludes some cases that work fine for us. Eg MS Windows or files
866 dnl hosted on AFS, both examples where simple links work, but links to
867 dnl directories fail. We use a cut-down version instead.
870 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
871 rm -f conf$$ conf$$.file
873 LN_S_FILEONLY='cp -p'
875 if (echo >conf$$.file) 2>/dev/null; then
876 if ln -s conf$$.file conf$$ 2>/dev/null; then
877 LN_S_FILEONLY='ln -s'
878 elif ln conf$$.file conf$$ 2>/dev/null; then
883 rm -f conf$$ conf$$.file
885 if test "$LN_S_FILEONLY" = "ln -s"; then
888 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
891 AC_SUBST(LN_S_FILEONLY)
894 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
895 dnl doesn't support links to directories, as in "ln file dir". But that
896 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
897 dnl executables at "make install" time.
898 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
899 dnl for more details.
900 if test "$opsys" = "mingw32"; then
904 AC_PATH_PROG(INSTALL_INFO, install-info, :,
905 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
906 dnl Don't use GZIP, which is used by gzip for additional parameters.
907 AC_PATH_PROG(GZIP_PROG, gzip)
909 if test $opsys = gnu-linux; then
910 AC_PATH_PROG(PAXCTL, paxctl,,
911 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
912 if test "X$PAXCTL" != X; then
913 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
914 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
915 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
916 else AC_MSG_RESULT(no); PAXCTL=""; fi])
920 ## Need makeinfo >= 4.7 (?) to build the manuals.
921 AC_PATH_PROG(MAKEINFO, makeinfo, no)
922 dnl By this stage, configure has already checked for egrep and set EGREP,
923 dnl or exited with an error if no egrep was found.
924 if test "$MAKEINFO" != "no"; then
926 $MAKEINFO --version 2> /dev/null |
927 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
933 ## Makeinfo is unusual. For a released Emacs, the manuals are
934 ## pre-built, and not deleted by the normal clean rules. makeinfo is
935 ## therefore in the category of "special tools" not normally required, which
936 ## configure does not have to check for (eg autoconf itself).
937 ## In a Bazaar checkout on the other hand, the manuals are not included.
938 ## So makeinfo is a requirement to build from Bazaar, and configure
939 ## should test for it as it does for any other build requirement.
940 ## We use the presence of $srcdir/info/emacs to distinguish a release,
941 ## with pre-built manuals, from a Bazaar checkout.
944 if test "$MAKEINFO" = "no"; then
946 if test "x${with_makeinfo}" = "xno"; then
948 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
949 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
950 source tree does not seem to have pre-built manuals in the `info' directory.
951 Either install a suitable version of makeinfo, or re-run configure
952 with the `--without-makeinfo' option to build without the manuals.] )
955 AC_SUBST(HAVE_MAKEINFO)
957 dnl Just so that there is only a single place we need to edit.
963 dnl Add our options to ac_link now, after it is set up.
965 if test x$GCC = xyes; then
966 test "x$GCC_LINK_TEST_OPTIONS" != x && \
967 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
969 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
970 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
973 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
974 dnl If we can link with the flag, it shouldn't do any harm anyhow.
975 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
976 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
977 dnl if not built to support GNU ld.
979 late_LDFLAGS=$LDFLAGS
980 if test x$GCC = xyes; then
981 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
983 LDFLAGS="$LDFLAGS -znocombreloc"
986 AC_MSG_CHECKING([for -znocombreloc])
987 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
988 [AC_MSG_RESULT(yes)],
989 LDFLAGS=$late_LDFLAGS
993 dnl The function dump-emacs will not be defined and temacs will do
994 dnl (load "loadup") automatically unless told otherwise.
995 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
997 your-opsys-here) CANNOT_DUMP=yes ;;
1000 test "$CANNOT_DUMP" = "yes" && \
1001 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1003 AC_SUBST(CANNOT_DUMP)
1006 UNEXEC_OBJ=unexelf.o
1008 # MSDOS uses unexcoff.o
1010 UNEXEC_OBJ=unexaix.o
1016 UNEXEC_OBJ=unexmacosx.o
1019 UNEXEC_OBJ=unexhp9k800.o
1022 UNEXEC_OBJ=unexw32.o
1025 # Use the Solaris dldump() function, called from unexsol.c, to dump
1026 # emacs, instead of the generic ELF dump code found in unexelf.c.
1027 # The resulting binary has a complete symbol table, and is better
1028 # for debugging and other observability tools (debuggers, pstack, etc).
1030 # If you encounter a problem using dldump(), please consider sending
1031 # a message to the OpenSolaris tools-linking mailing list:
1032 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1034 # It is likely that dldump() works with older Solaris too, but this has
1035 # not been tested, so for now this change is for Solaris 10 or newer.
1036 UNEXEC_OBJ=unexsol.o
1043 ## Let `ld' find image libs and similar things in /usr/local/lib.
1044 ## The system compiler, GCC, has apparently been modified to not
1045 ## look there, contrary to what a stock GCC would do.
1046 ### It's not our place to do this. See bug#10313#17.
1047 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1052 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1053 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1057 ### It's not our place to do this. See bug#10313#17.
1058 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1063 ## Han Boetes <han@boetes.org> says this is necessary,
1064 ## otherwise Emacs dumps core on elf systems.
1065 LD_SWITCH_SYSTEM="-Z"
1068 AC_SUBST(LD_SWITCH_SYSTEM)
1070 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1072 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1073 ## which has not been defined yet. When this was handled with cpp,
1074 ## it was expanded to null when configure sourced the s/*.h file.
1075 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1076 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1077 ## (or somesuch), but because it is supposed to go at the _front_
1078 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1079 ## Compare with the gnu-linux case below, which added to the end
1080 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1081 ## LD_SWITCH_SYSTEM_TEMACS.
1084 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1091 AC_CHECK_DECL([__ELF__])
1092 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1093 ## With ELF, make sure that all common symbols get allocated to in the
1094 ## data section. Otherwise, the dump of temacs may miss variables in
1095 ## the shared library that have been initialized. For example, with
1096 ## GNU libc, __malloc_initialized would normally be resolved to the
1097 ## shared library's .bss section, which is fatal.
1098 if test "x$GCC" = "xyes"; then
1099 C_SWITCH_MACHINE="-fno-common"
1101 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1104 UNEXEC_OBJ=unexalpha.o
1108 AC_SUBST(C_SWITCH_MACHINE)
1110 AC_SUBST(UNEXEC_OBJ)
1113 ## Some programs in src produce warnings saying certain subprograms
1114 ## are too complex and need a MAXMEM value greater than 2000 for
1115 ## additional optimization. --nils@exp-math.uni-essen.de
1116 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1117 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1118 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1119 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1120 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1121 AC_SUBST(C_SWITCH_SYSTEM)
1126 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1127 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1129 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1131 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1133 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1135 ## Motif needs -lgen.
1136 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1139 AC_SUBST(LIBS_SYSTEM)
1141 ### Make sure subsequent tests use flags consistent with the build flags.
1143 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1144 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1146 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1149 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1150 AC_DEFUN([AC_TYPE_SIZE_T])
1151 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1152 AC_DEFUN([AC_TYPE_UID_T])
1156 dnl Current possibilities handled by sed (aix4-2 -> aix,
1157 dnl gnu-linux -> gnu/linux, etc.):
1158 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1159 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1160 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1167 ## Adding -lm confuses the dynamic linker, so omit it.
1170 freebsd | dragonfly )
1171 SYSTEM_TYPE=berkeley-unix
1173 gnu-linux | gnu-kfreebsd )
1175 hpux10-20 | hpux11 )
1179 SYSTEM_TYPE=windows-nt
1181 dnl NB this may be adjusted below.
1183 SYSTEM_TYPE=berkeley-unix
1187 SYSTEM_TYPE=usg-unix-v
1193 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1194 [The type of system you are compiling for; sets `system-type'.])
1197 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1198 pre_PKG_CONFIG_LIBS=$LIBS
1200 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1202 dnl This function definition taken from Gnome 2.0
1203 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1204 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1205 dnl also defines GSTUFF_PKG_ERRORS on error
1206 AC_DEFUN([PKG_CHECK_MODULES], [
1209 if test "$PKG_CONFIG" = "no" ; then
1210 ifelse([$4], , [AC_MSG_ERROR([
1211 *** 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])
1213 PKG_CONFIG_MIN_VERSION=0.9.0
1214 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1215 AC_MSG_CHECKING(for $2)
1217 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1218 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1219 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1226 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1227 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1228 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1234 ## If we have a custom action on failure, don't print errors, but
1235 ## do set a variable so people can do so. Do it in a subshell
1236 ## to capture any diagnostics in invoking pkg-config.
1237 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1238 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1244 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1245 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1249 if test $succeeded = yes; then
1250 ifelse([$3], , :, [$3])
1252 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.])], [$4])
1256 if test "${with_sound}" != "no"; then
1257 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1258 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1259 have_sound_header=yes, [], [
1261 #define WIN32_LEAN_AND_MEAN
1262 #include <windows.h>
1265 # Emulation library used on NetBSD.
1266 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1270 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1271 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1272 if test $HAVE_ALSA = yes; then
1273 SAVE_CFLAGS="$CFLAGS"
1275 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1276 LIBS="$ALSA_LIBS $LIBS"
1277 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1278 emacs_alsa_normal=yes,
1279 emacs_alsa_normal=no)
1280 if test "$emacs_alsa_normal" != yes; then
1281 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1282 [[snd_lib_error_set_handler (0);]])],
1283 emacs_alsa_subdir=yes,
1284 emacs_alsa_subdir=no)
1285 if test "$emacs_alsa_subdir" != yes; then
1286 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1288 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1291 CFLAGS="$SAVE_CFLAGS"
1293 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1294 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1295 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1298 dnl Define HAVE_SOUND if we have sound support. We know it works and
1299 dnl compiles only on the specified platforms. For others, it
1300 dnl probably doesn't make sense to try.
1301 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1303 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1304 gnu-linux|freebsd|netbsd|mingw32)
1305 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1310 AC_SUBST(CFLAGS_SOUND)
1313 dnl checks for header files
1314 AC_CHECK_HEADERS_ONCE(
1318 sys/utsname.h pwd.h utmp.h util.h)
1320 AC_MSG_CHECKING(if personality LINUX32 can be set)
1321 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1322 emacs_cv_personality_linux32=yes,
1323 emacs_cv_personality_linux32=no)
1324 AC_MSG_RESULT($emacs_cv_personality_linux32)
1326 if test $emacs_cv_personality_linux32 = yes; then
1327 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1328 [Define to 1 if personality LINUX32 can be set.])
1331 dnl On Solaris 8 there's a compilation warning for term.h because
1332 dnl it doesn't define `bool'.
1333 AC_CHECK_HEADERS(term.h, , , -)
1335 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1337 if test $ac_cv_have_decl_sys_siglist != yes; then
1338 # For Tru64, at least:
1339 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1344 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1345 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1346 #if HAVE_SYS_SOCKET_H
1347 #include <sys/socket.h>
1349 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1350 #if HAVE_SYS_SOCKET_H
1351 #include <sys/socket.h>
1353 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1354 #if HAVE_SYS_SOCKET_H
1355 #include <sys/socket.h>
1358 dnl checks for structure members
1359 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1360 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1361 struct ifreq.ifr_addr,
1362 struct ifreq.ifr_addr.sa_len], , ,
1363 [AC_INCLUDES_DEFAULT
1364 #if HAVE_SYS_SOCKET_H
1365 #include <sys/socket.h>
1371 dnl Check for endianness.
1372 dnl AC_C_BIGENDIAN is done by gnulib.
1374 dnl check for Make feature
1375 dnl AC_PROG_MAKE_SET is done by Automake.
1380 dnl check for GNU Make if we have GCC and autodepend is on.
1381 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1382 AC_MSG_CHECKING([whether we are using GNU Make])
1384 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1385 if test "x$testval" != x; then
1388 ac_enable_autodepend=no
1390 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1391 if test $HAVE_GNU_MAKE = yes; then
1392 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1393 SAVE_CFLAGS="$CFLAGS"
1394 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1395 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1396 CFLAGS="$SAVE_CFLAGS"
1397 test -f deps.d || ac_enable_autodepend=no
1399 AC_MSG_RESULT([$ac_enable_autodepend])
1401 if test $ac_enable_autodepend = yes; then
1402 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1403 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1404 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1405 deps_frag=autodeps.mk
1408 deps_frag=$srcdir/src/$deps_frag
1411 AC_SUBST_FILE(deps_frag)
1414 lisp_frag=$srcdir/src/lisp.mk
1415 AC_SUBST_FILE(lisp_frag)
1418 dnl checks for operating system services
1419 AC_SYS_LONG_FILE_NAMES
1421 #### Choose a window system.
1423 ## We leave window_system equal to none if
1424 ## we end up building without one. Any new window system should
1425 ## set window_system to an appropriate value and add objects to
1426 ## window-system-specific substs.
1430 if test "$no_x" != yes; then
1434 LD_SWITCH_X_SITE_RPATH=
1435 if test "${x_libraries}" != NONE; then
1436 if test -n "${x_libraries}"; then
1437 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1438 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1440 x_default_search_path=""
1441 x_search_path=${x_libraries}
1442 if test -z "${x_search_path}"; then
1443 x_search_path=/usr/lib
1445 for x_library in `echo ${x_search_path}: | \
1446 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1448 ${x_library}/X11/%L/%T/%N%C%S:\
1449 ${x_library}/X11/%l/%T/%N%C%S:\
1450 ${x_library}/X11/%T/%N%C%S:\
1451 ${x_library}/X11/%L/%T/%N%S:\
1452 ${x_library}/X11/%l/%T/%N%S:\
1453 ${x_library}/X11/%T/%N%S"
1454 if test x"${x_default_search_path}" = x; then
1455 x_default_search_path=${x_search_path}
1457 x_default_search_path="${x_search_path}:${x_default_search_path}"
1461 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1463 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1464 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1467 if test x"${x_includes}" = x; then
1468 bitmapdir=/usr/include/X11/bitmaps
1470 # accumulate include directories that have X11 bitmap subdirectories
1472 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1473 if test -d "${bmd}/X11/bitmaps"; then
1474 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1476 if test -d "${bmd}/bitmaps"; then
1477 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1480 if test ${bmd_acc} != "dummyval"; then
1481 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1488 tmp_CPPFLAGS="$CPPFLAGS"
1489 tmp_CFLAGS="$CFLAGS"
1490 CPPFLAGS="$CPPFLAGS -x objective-c"
1491 CFLAGS="$CFLAGS -x objective-c"
1494 if test "${with_ns}" != no; then
1495 if test "${opsys}" = darwin; then
1497 ns_appdir=`pwd`/nextstep/Emacs.app
1498 ns_appbindir=${ns_appdir}/Contents/MacOS
1499 ns_appresdir=${ns_appdir}/Contents/Resources
1500 ns_appsrc=Cocoa/Emacs.base
1501 elif test -f $GNUSTEP_CONFIG_FILE; then
1503 ns_appdir=`pwd`/nextstep/Emacs.app
1504 ns_appbindir=${ns_appdir}
1505 ns_appresdir=${ns_appdir}/Resources
1506 ns_appsrc=GNUstep/Emacs.base
1507 dnl FIXME sourcing this several times in subshells seems inefficient.
1508 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1509 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1510 dnl I seemed to need these as well with GNUstep-startup 0.25.
1511 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1512 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1513 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1514 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1515 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1516 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1517 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1518 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1519 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1520 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1521 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1522 dnl If they had chosen to either define it or not, we could have
1523 dnl just used AC_CHECK_DECL here.
1524 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1525 emacs_cv_objc_exceptions,
1526 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1527 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1531 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1532 if test $emacs_cv_objc_exceptions = yes; then
1533 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1534 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1535 [Define if GNUstep uses ObjC exceptions.])
1536 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1540 dnl This is only used while we test the NS headers, it gets reset below.
1541 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1543 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1544 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1545 files are missing or cannot be compiled.])])
1547 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1549 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1550 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1553 #error "OSX 10.4 or newer required"
1557 ns_osx_have_104=yes,
1559 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1561 ns_have_nsinteger=yes,
1562 ns_have_nsinteger=no)
1563 if test $ns_osx_have_104 = no; then
1564 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1566 if test $ns_have_nsinteger = yes; then
1567 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1571 AC_SUBST(LIBS_GNUSTEP)
1573 INSTALL_ARCH_INDEP_EXTRA=install-etc
1574 ns_self_contained=no
1577 if test "${HAVE_NS}" = yes; then
1578 if test "$with_toolkit_scroll_bars" = "no"; then
1579 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1582 window_system=nextstep
1583 # set up packaging dirs
1584 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1585 ns_self_contained=yes
1586 prefix=${ns_appresdir}
1587 exec_prefix=${ns_appbindir}
1588 dnl This one isn't really used, only archlibdir is.
1589 libexecdir="\${ns_appbindir}/libexec"
1590 archlibdir="\${ns_appbindir}/libexec"
1591 docdir="\${ns_appresdir}/etc"
1592 etcdir="\${ns_appresdir}/etc"
1593 dnl FIXME maybe set datarootdir instead.
1594 dnl That would also get applications, icons, man.
1595 infodir="\${ns_appresdir}/info"
1596 mandir="\${ns_appresdir}/man"
1597 lispdir="\${ns_appresdir}/lisp"
1598 leimdir="\${ns_appresdir}/leim"
1599 INSTALL_ARCH_INDEP_EXTRA=
1601 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1603 CFLAGS="$tmp_CFLAGS"
1604 CPPFLAGS="$tmp_CPPFLAGS"
1605 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1606 AC_SUBST(ns_self_contained)
1608 AC_SUBST(NS_OBJC_OBJ)
1618 if test "${with_w32}" != no; then
1621 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1622 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1623 cannot be found.])])
1626 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1629 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1634 if test "${opsys}" = "mingw32"; then
1635 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1636 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1637 #include <windows.h>
1638 #include <usp10.h>]],
1639 [[PIMAGE_NT_HEADERS pHeader;
1640 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1641 [emacs_cv_w32api=yes
1644 AC_MSG_RESULT($emacs_cv_w32api)
1645 if test "${emacs_cv_w32api}" = "no"; then
1646 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1657 if test "${HAVE_W32}" = "yes"; then
1658 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1659 AC_CHECK_TOOL(WINDRES, [windres],
1660 [AC_MSG_ERROR([No resource compiler found.])])
1661 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1662 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1663 EMACSRES="emacs.res"
1664 case "$canonical" in
1665 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1666 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1668 if test "${opsys}" = "cygwin"; then
1669 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1670 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1671 # Tell the linker that emacs.res is an object (which we compile from
1672 # the rc file), not a linker script.
1673 W32_RES_LINK="-Wl,emacs.res"
1675 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1676 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1677 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1678 W32_RES_LINK="\$(EMACSRES)"
1679 CLIENTRES="emacsclient.res"
1680 CLIENTW="emacsclientw\$(EXEEXT)"
1681 FIRSTFILE_OBJ=firstfile.o
1684 LIBS_ECLIENT="-lcomctl32"
1685 LIB_WSOCK32="-lwsock32"
1686 NTLIB="ntlib.$ac_objext"
1687 XARGS_LIMIT="-s 10000"
1693 AC_SUBST(EMACS_MANIFEST)
1696 AC_SUBST(W32_RES_LINK)
1697 AC_SUBST(FIRSTFILE_OBJ)
1700 AC_SUBST(LIBS_ECLIENT)
1701 AC_SUBST(LIB_WSOCK32)
1703 AC_SUBST(XARGS_LIMIT)
1705 if test "${HAVE_W32}" = "yes"; then
1710 ## $window_system is now set to the window system we will
1718 case "${window_system}" in
1723 case "${with_x_toolkit}" in
1724 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1725 motif ) USE_X_TOOLKIT=MOTIF ;;
1727 term_header=gtkutil.h
1728 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1729 dnl USE_X_TOOLKIT is set.
1730 USE_X_TOOLKIT=none ;;
1731 gtk2 ) with_gtk2=yes
1732 term_header=gtkutil.h
1733 USE_X_TOOLKIT=none ;;
1734 gtk3 ) with_gtk3=yes
1735 term_header=gtkutil.h
1736 USE_X_TOOLKIT=none ;;
1737 no ) USE_X_TOOLKIT=none ;;
1738 dnl If user did not say whether to use a toolkit, make this decision later:
1739 dnl use the toolkit if we have gtk, or X11R5 or newer.
1740 * ) USE_X_TOOLKIT=maybe ;;
1744 term_header=nsterm.h
1747 term_header=w32term.h
1751 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1752 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1753 if test "$HAVE_XSERVER" = true ||
1754 test -n "$DISPLAY" ||
1755 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1756 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1757 were found. You should install the relevant development files for X
1758 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1759 sure you have development files for image handling, i.e.
1760 tiff, gif, jpeg, png and xpm.
1761 If you are sure you want Emacs compiled without X window support, pass
1767 ### If we're using X11, we should use the X menu package.
1770 yes ) HAVE_MENUS=yes ;;
1773 # Does the opsystem file prohibit the use of the GNU malloc?
1774 # Assume not, until told otherwise.
1778 [whether malloc is Doug Lea style],
1779 [emacs_cv_var_doug_lea_malloc],
1782 [[#include <malloc.h>
1783 static void hook (void) {}]],
1784 [[malloc_set_state (malloc_get_state ());
1785 __after_morecore_hook = hook;
1786 __malloc_initialize_hook = hook;]])],
1787 [emacs_cv_var_doug_lea_malloc=yes],
1788 [emacs_cv_var_doug_lea_malloc=no])])
1789 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1792 dnl See comments in aix4-2.h about maybe using system malloc there.
1795 ## darwin ld insists on the use of malloc routines in the System framework.
1796 darwin|sol2-10) system_malloc=yes ;;
1799 if test "${system_malloc}" = "yes"; then
1800 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1803 (The GNU allocators don't work with this system configuration.)"
1807 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1808 VMLIMIT_OBJ=vm-limit.o
1810 AC_CHECK_HEADERS([sys/vlimit.h])
1811 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1814 [[extern char data_start[]; char ch;]],
1815 [[return data_start < &ch;]])],
1816 [emacs_cv_data_start=yes],
1817 [emacs_cv_data_start=no])])
1818 if test $emacs_cv_data_start = yes; then
1819 AC_DEFINE([HAVE_DATA_START], 1,
1820 [Define to 1 if data_start is the address of the start
1821 of the main data segment.])
1824 AC_SUBST(GMALLOC_OBJ)
1825 AC_SUBST(VMLIMIT_OBJ)
1827 if test "$doug_lea_malloc" = "yes" ; then
1828 if test "$GNU_MALLOC" = yes ; then
1830 (Using Doug Lea's new malloc from the GNU C Library.)"
1832 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1833 [Define to 1 if you are using the GNU C Library.])
1835 ## Use mmap directly for allocating larger buffers.
1836 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1837 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1838 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1840 gnu*) REL_ALLOC=no ;;
1844 if test x"${REL_ALLOC}" = x; then
1845 REL_ALLOC=${GNU_MALLOC}
1848 use_mmap_for_buffers=no
1850 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1854 if test $use_mmap_for_buffers = yes; then
1855 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1859 LIBS="$LIBS_SYSTEM $LIBS"
1861 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1862 AC_CHECK_LIB(dnet, dnet_ntoa)
1863 dnl This causes -lresolv to get used in subsequent tests,
1864 dnl which causes failures on some systems such as HPUX 9.
1865 dnl AC_CHECK_LIB(resolv, gethostbyname)
1867 dnl FIXME replace main with a function we actually want from this library.
1868 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1870 dnl Check if pthreads is available.
1872 AC_CHECK_HEADERS_ONCE(pthread.h)
1873 if test "$ac_cv_header_pthread_h"; then
1874 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1875 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1876 dnl testing for pthread_self if Emacs uses gmalloc.c.
1877 if test "$GMALLOC_OBJ" = gmalloc.o; then
1878 emacs_pthread_function=pthread_atfork
1880 emacs_pthread_function=pthread_self
1882 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1884 if test "$HAVE_PTHREAD" = yes; then
1885 case "${canonical}" in
1887 *) LIB_PTHREAD="-lpthread"
1888 LIBS="$LIB_PTHREAD $LIBS" ;;
1890 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1892 AC_SUBST([LIB_PTHREAD])
1894 AC_CHECK_LIB(pthreads, cma_open)
1896 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1897 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1898 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1899 ## added to LIBS in configure would never contain the pthreads part,
1900 ## but the value used in Makefiles might. FIXME?
1902 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1903 ## be harmless on older versions of X where it happens to exist.
1904 test "$opsys" = "aix4-2" && \
1905 test $ac_cv_lib_pthreads_cma_open = yes && \
1906 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1908 dnl Check for need for bigtoc support on IBM AIX
1912 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1914 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1915 *) gdb_cv_bigtoc=-bbigtoc ;;
1918 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1919 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1924 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1925 # used for the tests that follow. We set them back to REAL_CFLAGS and
1926 # REAL_CPPFLAGS later on.
1928 REAL_CFLAGS="$CFLAGS"
1929 REAL_CPPFLAGS="$CPPFLAGS"
1931 if test "${HAVE_X11}" = "yes"; then
1932 DEFS="$C_SWITCH_X_SITE $DEFS"
1933 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1935 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1936 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1938 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1939 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1940 # but it's more convenient here to set LD_RUN_PATH since this
1941 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1942 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1943 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1947 if test "${opsys}" = "gnu-linux"; then
1948 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1949 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1950 [[XOpenDisplay ("foo");]])],
1951 [xgnu_linux_first_failure=no],
1952 [xgnu_linux_first_failure=yes])
1953 if test "${xgnu_linux_first_failure}" = "yes"; then
1954 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1955 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1956 OLD_CPPFLAGS="$CPPFLAGS"
1958 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1959 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1960 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1961 LIBS="$LIBS -b i486-linuxaout"
1962 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1963 [[XOpenDisplay ("foo");]])],
1964 [xgnu_linux_second_failure=no],
1965 [xgnu_linux_second_failure=yes])
1966 if test "${xgnu_linux_second_failure}" = "yes"; then
1967 # If we get the same failure with -b, there is no use adding -b.
1968 # So take it out. This plays safe.
1969 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1970 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1971 CPPFLAGS="$OLD_CPPFLAGS"
1982 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1983 # header files included from there.
1984 AC_MSG_CHECKING(for Xkb)
1985 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1986 #include <X11/XKBlib.h>]],
1987 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1988 emacs_xkb=yes, emacs_xkb=no)
1989 AC_MSG_RESULT($emacs_xkb)
1990 if test $emacs_xkb = yes; then
1991 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
1994 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1995 XScreenNumberOfScreen)
1998 if test "${window_system}" = "x11"; then
1999 AC_MSG_CHECKING(X11 version 6)
2000 AC_CACHE_VAL(emacs_cv_x11_version_6,
2001 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2002 [[#if XlibSpecificationRelease < 6
2005 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2006 if test $emacs_cv_x11_version_6 = yes; then
2007 AC_MSG_RESULT(6 or newer)
2008 AC_DEFINE(HAVE_X11R6, 1,
2009 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2010 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2011 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2015 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2016 [Define if you have usable X11R6-style XIM support.])
2020 AC_MSG_RESULT(before 6)
2025 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2027 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2028 if test "${with_rsvg}" != "no"; then
2029 RSVG_REQUIRED=2.11.0
2030 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2032 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2033 AC_SUBST(RSVG_CFLAGS)
2036 if test $HAVE_RSVG = yes; then
2037 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2038 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2039 LIBS="$RSVG_LIBS $LIBS"
2045 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2046 if test "${with_imagemagick}" != "no"; then
2047 ## 6.2.8 is the earliest version known to work, but earlier versions
2048 ## might work - let us know if you find one.
2049 ## 6.0.7 does not work. See bug#7955.
2050 ## 6.8.2 makes Emacs crash; see Bug#13867.
2051 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2052 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2053 AC_SUBST(IMAGEMAGICK_CFLAGS)
2054 AC_SUBST(IMAGEMAGICK_LIBS)
2056 if test $HAVE_IMAGEMAGICK = yes; then
2057 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2058 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2059 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2060 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2068 gtk_term_header=$term_header
2071 if test "${opsys}" != "mingw32"; then
2072 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2075 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2077 dnl Checks for libraries.
2078 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2079 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2080 AC_MSG_ERROR($GTK_PKG_ERRORS)
2082 if test "$pkg_check_gtk" = "yes"; then
2083 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2084 GTK_OBJ=emacsgtkfixed.o
2085 gtk_term_header=gtkutil.h
2086 USE_GTK_TOOLKIT="GTK3"
2087 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2088 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2089 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2093 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2097 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2100 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2102 dnl Checks for libraries.
2103 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2104 if test "$pkg_check_gtk" = "no" &&
2105 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2107 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2109 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2113 if test x"$pkg_check_gtk" = xyes; then
2115 AC_SUBST(GTK_CFLAGS)
2117 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2118 CFLAGS="$CFLAGS $GTK_CFLAGS"
2119 LIBS="$GTK_LIBS $LIBS"
2120 dnl Try to compile a simple GTK program.
2121 AC_MSG_CHECKING([whether GTK compiles])
2125 [[/* Check the Gtk and Glib APIs. */
2126 #include <gtk/gtk.h>
2127 #include <glib-object.h>
2129 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2133 GtkSettings *gs = 0;
2134 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2135 strict C prohibits this. Use gtk_main_iteration to test that the
2136 libraries are there. */
2137 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2138 0, 0, 0, G_CALLBACK (callback), 0))
2139 gtk_main_iteration ();
2142 AC_MSG_RESULT([$GTK_COMPILES])
2143 if test "${GTK_COMPILES}" != "yes"; then
2145 if test "$USE_X_TOOLKIT" != "maybe"; then
2146 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2150 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2151 GTK_OBJ="gtkutil.o $GTK_OBJ"
2152 term_header=$gtk_term_header
2154 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2157 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2158 closing open displays. This is no problem if you just use
2159 one display, but if you use more than one and close one of them
2169 if test "${HAVE_GTK}" = "yes"; then
2171 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2172 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2173 if test "$with_toolkit_scroll_bars" != no; then
2174 with_toolkit_scroll_bars=yes
2177 dnl Check if we have the old file selection dialog declared and
2178 dnl in the link library. In 2.x it may be in the library,
2179 dnl but not declared if deprecated featured has been selected out.
2180 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2181 HAVE_GTK_FILE_SELECTION=no
2182 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2183 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2184 #include <gtk/gtk.h>])
2185 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2186 AC_CHECK_FUNCS(gtk_file_selection_new)
2189 dnl Same as above for gtk_handle_box.
2190 HAVE_GTK_HANDLE_BOX=no
2191 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2192 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2193 #include <gtk/gtk.h>])
2194 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2195 AC_CHECK_FUNCS(gtk_handle_box_new)
2198 dnl Same as above for gtk_tearoff_menu_item.
2199 HAVE_GTK_TEAROFF_MENU_ITEM=no
2200 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2201 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2202 #include <gtk/gtk.h>])
2203 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2204 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2207 dnl Check for functions introduced in 2.14 and later.
2208 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2209 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2210 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2211 gtk_orientable_set_orientation \
2212 gtk_window_set_has_resize_grip)
2214 term_header=gtkutil.h
2217 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2218 dnl other platforms.
2221 if test "${with_dbus}" = "yes"; then
2222 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2223 if test "$HAVE_DBUS" = yes; then
2224 LIBS="$LIBS $DBUS_LIBS"
2225 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2226 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2227 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2229 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2230 dbus_type_is_valid \
2231 dbus_validate_bus_name \
2232 dbus_validate_path \
2233 dbus_validate_interface \
2234 dbus_validate_member)
2240 dnl GSettings has been tested under GNU/Linux only.
2242 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2243 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2244 if test "$HAVE_GSETTINGS" = "yes"; then
2245 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2246 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2247 SETTINGS_LIBS="$GSETTINGS_LIBS"
2251 dnl GConf has been tested under GNU/Linux only.
2252 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2254 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2255 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2256 if test "$HAVE_GCONF" = yes; then
2257 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2258 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2259 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2260 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2264 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2265 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2266 if test "$HAVE_GOBJECT" = "yes"; then
2267 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2268 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2270 SAVE_CFLAGS="$CFLAGS"
2272 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2273 LIBS="$SETTINGS_LIBS $LIBS"
2274 AC_CHECK_FUNCS([g_type_init])
2275 CFLAGS="$SAVE_CFLAGS"
2278 AC_SUBST(SETTINGS_CFLAGS)
2279 AC_SUBST(SETTINGS_LIBS)
2282 dnl SELinux is available for GNU/Linux only.
2285 if test "${with_selinux}" = "yes"; then
2286 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2287 if test "$HAVE_LIBSELINUX" = yes; then
2288 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2289 LIBSELINUX_LIBS=-lselinux
2292 AC_SUBST(LIBSELINUX_LIBS)
2295 if test "${with_gnutls}" = "yes" ; then
2296 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2297 if test "${HAVE_GNUTLS}" = "yes"; then
2298 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2301 # Windows loads GnuTLS dynamically
2302 if test "${opsys}" = "mingw32"; then
2305 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2306 LIBS="$LIBGNUTLS_LIBS $LIBS"
2310 AC_SUBST(LIBGNUTLS_LIBS)
2311 AC_SUBST(LIBGNUTLS_CFLAGS)
2316 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2317 dnl a particular library. This doesn't make much sense?
2318 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2319 with_file_notification=no
2322 if test "${with_file_notification}" != "no"; then
2324 dnl MS Windows native file monitor is available for mingw32 only.
2325 if test "${with_file_notification}" = "w32" || \
2326 ( test "${opsys}" = "mingw32" && \
2327 test "${with_file_notification}" = "yes" ); then
2328 AC_CHECK_HEADER(windows.h)
2329 if test "$ac_cv_header_windows_h" = yes ; then
2330 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2331 NOTIFY_OBJ=w32notify.o
2332 NOTIFY_SUMMARY="yes (w32)"
2333 elif test "${with_file_notification}" = "w32"; then
2334 AC_MSG_ERROR([File notification `w32' requested but requirements not found.])
2335 elif test "${opsys}" = "mingw32"; then
2336 dnl Do not try any further.
2337 with_file_notification=no
2341 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2342 dnl has been added in glib 2.24. It has been tested under
2343 dnl GNU/Linux only. We take precedence over inotify, but this makes
2344 dnl only sense when glib has been compiled with inotify support. How
2346 if test "${with_file_notification}" = "gfile" || \
2347 test "${with_file_notification}" = "yes"; then
2348 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2349 if test "$HAVE_GFILENOTIFY" = "yes"; then
2350 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2351 NOTIFY_OBJ=gfilenotify.o
2352 NOTIFY_SUMMARY="yes -lgio (gfile)"
2353 elif test "${with_file_notification}" = "gfile"; then
2354 AC_MSG_ERROR([File notification `gfile' requested but requirements not found.])
2358 dnl inotify is only available on GNU/Linux.
2359 if test "${with_file_notification}" = "inotify" || \
2360 test "${with_file_notification}" = "yes"; then
2361 AC_CHECK_HEADER(sys/inotify.h)
2362 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2363 AC_CHECK_FUNC(inotify_init1)
2364 if test "$ac_cv_func_inotify_init1" = yes; then
2365 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2366 NOTIFY_OBJ=inotify.o
2367 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2369 elif test "${with_file_notification}" = "inotify"; then
2370 AC_MSG_ERROR([File notification `inotify' requested but requirements not found.])
2373 fi dnl ${with_file_notification} != no
2375 if test -n "$NOTIFY_OBJ"; then
2376 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2378 AC_SUBST(NOTIFY_OBJ)
2379 AC_SUBST(GFILENOTIFY_CFLAGS)
2380 AC_SUBST(GFILENOTIFY_LIBS)
2382 dnl Do not put whitespace before the #include statements below.
2383 dnl Older compilers (eg sunos4 cc) choke on it.
2386 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2387 if test "$with_xaw3d" != no; then
2388 AC_CACHE_VAL(emacs_cv_xaw3d,
2389 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2390 #include <X11/Intrinsic.h>
2391 #include <X11/Xaw3d/Simple.h>]],
2393 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2394 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2395 emacs_cv_xaw3d=no)])
2399 if test $emacs_cv_xaw3d = yes; then
2400 AC_MSG_CHECKING(for xaw3d)
2401 AC_MSG_RESULT([yes; using Lucid toolkit])
2405 AC_DEFINE(HAVE_XAW3D, 1,
2406 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2408 AC_MSG_CHECKING(for xaw3d)
2410 AC_MSG_CHECKING(for libXaw)
2411 AC_CACHE_VAL(emacs_cv_xaw,
2412 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2413 #include <X11/Intrinsic.h>
2414 #include <X11/Xaw/Simple.h>]],
2418 if test $emacs_cv_xaw = yes; then
2419 AC_MSG_RESULT([yes; using Lucid toolkit])
2422 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2423 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2425 AC_MSG_ERROR([No X toolkit could be found.
2426 If you are sure you want Emacs compiled without an X toolkit, pass
2428 to configure. Otherwise, install the development libraries for the toolkit
2429 that you want to use (e.g. Gtk+) and re-run configure.])
2434 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2437 if test "${USE_X_TOOLKIT}" != "none"; then
2438 AC_MSG_CHECKING(X11 toolkit version)
2439 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2440 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2441 [[#if XtSpecificationRelease < 6
2444 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2445 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2446 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2447 AC_MSG_RESULT(6 or newer)
2448 AC_DEFINE(HAVE_X11XTR6, 1,
2449 [Define to 1 if you have the X11R6 or newer version of Xt.])
2450 LIBXTR6="-lSM -lICE"
2452 ## Use libw.a along with X11R6 Xt.
2453 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2456 AC_MSG_RESULT(before 6)
2459 dnl If using toolkit, check whether libXmu.a exists.
2460 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2462 if test x$HAVE_X11XTR6 = xyes; then
2463 LIBS="-lXt -lSM -lICE $LIBS"
2467 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2468 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2469 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2473 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2474 dnl Why not just test for libxmu in the normal way?
2477 ## These systems don't supply Xmu.
2479 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2487 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2488 if test "${HAVE_X11}" = "yes"; then
2489 if test "${USE_X_TOOLKIT}" != "none"; then
2490 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2495 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2496 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2497 if test -d /usr/include/openmotif; then
2498 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2499 emacs_cv_openmotif=yes
2500 case "$canonical" in
2501 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2502 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2505 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2508 emacs_cv_openmotif=no
2510 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2511 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2512 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2515 Motif version prior to 2.1.
2517 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2518 if test $emacs_cv_motif_version_2_1 = yes; then
2519 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2520 if test x$emacs_cv_openmotif = xyes; then
2521 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2524 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2525 # We put this in CFLAGS temporarily to precede other -I options
2526 # that might be in CFLAGS temporarily.
2527 # We put this in CPPFLAGS where it precedes the other -I options.
2528 OLD_CPPFLAGS=$CPPFLAGS
2530 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2531 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2532 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2534 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2535 if test $emacs_cv_lesstif = yes; then
2536 # Make sure this -I option remains in CPPFLAGS after it is set
2537 # back to REAL_CPPFLAGS.
2538 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2539 # have those other -I options anyway. Ultimately, having this
2540 # directory ultimately in CPPFLAGS will be enough.
2541 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2542 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2545 CPPFLAGS=$OLD_CPPFLAGS
2548 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2549 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2552 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2553 dnl using Motif or Xaw3d is available, and unless
2554 dnl --with-toolkit-scroll-bars=no was specified.
2556 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2557 [Define to 1 if we should use toolkit scroll bars.])dnl
2558 USE_TOOLKIT_SCROLL_BARS=no
2559 if test "${with_toolkit_scroll_bars}" != "no"; then
2560 if test "${USE_X_TOOLKIT}" != "none"; then
2561 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2562 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2564 USE_TOOLKIT_SCROLL_BARS=yes
2565 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2566 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2567 USE_TOOLKIT_SCROLL_BARS=yes
2569 elif test "${HAVE_GTK}" = "yes"; then
2570 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2571 USE_TOOLKIT_SCROLL_BARS=yes
2572 elif test "${HAVE_NS}" = "yes"; then
2573 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2574 USE_TOOLKIT_SCROLL_BARS=yes
2575 elif test "${HAVE_W32}" = "yes"; then
2576 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2577 USE_TOOLKIT_SCROLL_BARS=yes
2581 dnl See if XIM is available.
2582 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2583 #include <X11/Xlib.h>
2584 #include <X11/Xresource.h>]],
2585 [[XIMProc callback;]])],
2587 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2590 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2592 if test "${with_xim}" != "no"; then
2593 AC_DEFINE(USE_XIM, 1,
2594 [Define to 1 if we should use XIM, if it is available.])
2598 if test "${HAVE_XIM}" != "no"; then
2600 if test "$GCC" = yes; then
2601 CFLAGS="$CFLAGS --pedantic-errors"
2603 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2604 #include <X11/Xlib.h>
2605 #include <X11/Xresource.h>]],
2611 XPointer *client_data;
2613 /* If we're not using GCC, it's probably not XFree86, and this is
2614 probably right, but we can't use something like --pedantic-errors. */
2615 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2616 char*, XIMProc, XPointer*);
2618 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2620 [emacs_cv_arg6_star=yes])
2621 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2622 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2623 either XPointer or XPointer*.])dnl
2624 if test "$emacs_cv_arg6_star" = yes; then
2625 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2627 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2632 ### Start of font-backend (under any platform) section.
2633 # (nothing here yet -- this is a placeholder)
2634 ### End of font-backend (under any platform) section.
2636 ### Start of font-backend (under X11) section.
2637 if test "${HAVE_X11}" = "yes"; then
2638 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2640 ## Use -lXft if available, unless `--with-xft=no'.
2642 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2645 if test "x${with_xft}" != "xno"; then
2647 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2648 ## Because xftfont.c uses XRenderQueryExtension, we also
2649 ## need to link to -lXrender.
2651 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2652 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2653 OLD_CPPFLAGS="$CPPFLAGS"
2654 OLD_CFLAGS="$CFLAGS"
2656 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2657 CFLAGS="$CFLAGS $XFT_CFLAGS"
2658 XFT_LIBS="-lXrender $XFT_LIBS"
2659 LIBS="$XFT_LIBS $LIBS"
2660 AC_CHECK_HEADER(X11/Xft/Xft.h,
2661 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2662 [[#include <X11/X.h>]])
2664 if test "${HAVE_XFT}" = "yes"; then
2665 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2667 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2669 CPPFLAGS="$OLD_CPPFLAGS"
2670 CFLAGS="$OLD_CFLAGS"
2672 fi # "${HAVE_XFT}" = "yes"
2673 fi # "$HAVE_XFT" != no
2674 fi # "x${with_xft}" != "xno"
2676 ## We used to allow building with FreeType and without Xft.
2677 ## However, the ftx font backend driver is not in good shape.
2678 if test "$HAVE_XFT" != "yes"; then
2679 dnl For the "Does Emacs use" message at the end.
2683 dnl Strict linkers fail with
2684 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2685 dnl if -lfreetype is not specified.
2686 dnl The following is needed to set FREETYPE_LIBS.
2687 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2690 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2694 if test "${HAVE_FREETYPE}" = "yes"; then
2695 AC_DEFINE(HAVE_FREETYPE, 1,
2696 [Define to 1 if using the freetype and fontconfig libraries.])
2697 if test "${with_libotf}" != "no"; then
2698 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2700 if test "$HAVE_LIBOTF" = "yes"; then
2701 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2702 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2703 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2704 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2705 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2706 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2707 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2711 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2712 dnl Does the new font backend require it, or can it work without it?
2716 if test "${HAVE_LIBOTF}" = yes; then
2717 if test "${with_m17n_flt}" != "no"; then
2718 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2719 if test "$HAVE_M17N_FLT" = "yes"; then
2720 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2731 ### End of font-backend (under X11) section.
2733 AC_SUBST(FREETYPE_CFLAGS)
2734 AC_SUBST(FREETYPE_LIBS)
2735 AC_SUBST(FONTCONFIG_CFLAGS)
2736 AC_SUBST(FONTCONFIG_LIBS)
2737 AC_SUBST(LIBOTF_CFLAGS)
2738 AC_SUBST(LIBOTF_LIBS)
2739 AC_SUBST(M17N_FLT_CFLAGS)
2740 AC_SUBST(M17N_FLT_LIBS)
2742 ### Use -lXpm if available, unless `--with-xpm=no'.
2743 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2746 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2747 if test "${with_xpm}" != "no"; then
2748 SAVE_CPPFLAGS="$CPPFLAGS"
2749 SAVE_LDFLAGS="$LDFLAGS"
2750 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2751 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2752 AC_CHECK_HEADER(X11/xpm.h,
2753 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2754 if test "${HAVE_XPM}" = "yes"; then
2755 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2756 AC_EGREP_CPP(no_return_alloc_pixels,
2757 [#include "X11/xpm.h"
2758 #ifndef XpmReturnAllocPixels
2759 no_return_alloc_pixels
2761 ], HAVE_XPM=no, HAVE_XPM=yes)
2763 if test "${HAVE_XPM}" = "yes"; then
2764 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2768 CPPFLAGS="$SAVE_CPPFLAGS"
2769 LDFLAGS="$SAVE_LDFLAGS"
2774 if test "${HAVE_XPM}" = "yes"; then
2775 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2780 if test "${HAVE_X11}" = "yes"; then
2781 if test "${with_xpm}" != "no"; then
2782 AC_CHECK_HEADER(X11/xpm.h,
2783 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2784 if test "${HAVE_XPM}" = "yes"; then
2785 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2786 AC_EGREP_CPP(no_return_alloc_pixels,
2787 [#include "X11/xpm.h"
2788 #ifndef XpmReturnAllocPixels
2789 no_return_alloc_pixels
2791 ], HAVE_XPM=no, HAVE_XPM=yes)
2793 if test "${HAVE_XPM}" = "yes"; then
2801 if test "${HAVE_XPM}" = "yes"; then
2802 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2807 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2808 ### slightly different requirements wrt image libraries (it doesn't
2809 ### use -lXpm because it loads the xpm shared library dynamically at
2811 if test "${opsys}" = "mingw32"; then
2812 if test "${with_xpm}" != "no"; then
2813 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2817 if test "${HAVE_XPM}" = "yes"; then
2818 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2824 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2825 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2828 if test "${opsys}" = "mingw32"; then
2829 if test "${with_jpeg}" != "no"; then
2830 dnl Checking for jpeglib.h can lose because of a redefinition of
2832 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2834 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2835 if test "${HAVE_JPEG}" = "yes"; then
2836 AC_DEFINE(HAVE_JPEG)
2837 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2838 [#include <jpeglib.h>
2839 version=JPEG_LIB_VERSION
2841 [AC_DEFINE(HAVE_JPEG)],
2842 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2845 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2846 if test "${with_jpeg}" != "no"; then
2847 dnl Checking for jpeglib.h can lose because of a redefinition of
2849 AC_CHECK_HEADER(jerror.h,
2850 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2853 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2854 if test "${HAVE_JPEG}" = "yes"; then
2855 AC_DEFINE(HAVE_JPEG)
2856 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2857 [#include <jpeglib.h>
2858 version=JPEG_LIB_VERSION
2860 [AC_DEFINE(HAVE_JPEG)],
2861 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2864 if test "${HAVE_JPEG}" = "yes"; then
2870 ### Use -lpng if available, unless `--with-png=no'.
2871 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2874 if test "${opsys}" = "mingw32"; then
2875 if test "${with_png}" != "no"; then
2876 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2878 if test "${HAVE_PNG}" = "yes"; then
2879 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2881 AC_CHECK_DECL(png_longjmp,
2883 [AC_DEFINE(PNG_DEPSTRUCT, [],
2884 [Define to empty to suppress deprecation warnings when building
2885 with --enable-gcc-warnings and with libpng versions before 1.5,
2886 which lack png_longjmp.])],
2887 [[#ifdef HAVE_LIBPNG_PNG_H
2888 # include <libpng/png.h>
2894 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2895 if test "${with_png}" != "no"; then
2896 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2897 # in /usr/include/libpng.
2898 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2899 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2900 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2904 if test "${HAVE_PNG}" = "yes"; then
2905 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2906 LIBPNG="-lpng -lz -lm"
2908 AC_CHECK_DECL(png_longjmp,
2910 [AC_DEFINE(PNG_DEPSTRUCT, [],
2911 [Define to empty to suppress deprecation warnings when building
2912 with --enable-gcc-warnings and with libpng versions before 1.5,
2913 which lack png_longjmp.])],
2914 [[#ifdef HAVE_LIBPNG_PNG_H
2915 # include <libpng/png.h>
2924 ### Use -ltiff if available, unless `--with-tiff=no'.
2925 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
2928 if test "${opsys}" = "mingw32"; then
2929 if test "${with_tiff}" != "no"; then
2930 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
2932 if test "${HAVE_TIFF}" = "yes"; then
2933 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2935 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2936 if test "${with_tiff}" != "no"; then
2937 AC_CHECK_HEADER(tiffio.h,
2939 # At least one tiff package requires the jpeg library.
2940 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2941 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2944 if test "${HAVE_TIFF}" = "yes"; then
2945 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2946 dnl FIXME -lz -lm, as per libpng?
2952 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2953 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
2956 if test "${opsys}" = "mingw32"; then
2957 if test "${with_gif}" != "no"; then
2958 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
2960 if test "${HAVE_GIF}" = "yes"; then
2961 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2963 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2964 || test "${HAVE_W32}" = "yes"; then
2965 AC_CHECK_HEADER(gif_lib.h,
2966 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2967 # Earlier versions can crash Emacs.
2968 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2970 if test "$HAVE_GIF" = yes; then
2972 elif test "$HAVE_GIF" = maybe; then
2973 # If gif_lib.h but no libgif, try libungif.
2974 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2975 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2978 if test "${HAVE_GIF}" = "yes"; then
2979 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2984 dnl Check for required libraries.
2985 if test "${HAVE_X11}" = "yes"; then
2988 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2989 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2990 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2991 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2992 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2993 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2994 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2995 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2996 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2997 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2999 if test "X${MISSING}" != X; then
3000 AC_MSG_ERROR([The following required libraries were not found:
3002 Maybe some development libraries/packages are missing?
3003 If you don't want to link with them give
3005 as options to configure])
3009 ### Use -lgpm if available, unless `--with-gpm=no'.
3012 if test "${with_gpm}" != "no"; then
3013 AC_CHECK_HEADER(gpm.h,
3014 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3016 if test "${HAVE_GPM}" = "yes"; then
3017 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3023 dnl Check for malloc/malloc.h on darwin
3024 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3027 ### Use NeXTstep API to implement GUI.
3028 if test "${HAVE_NS}" = "yes"; then
3029 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3030 if test "${NS_IMPL_COCOA}" = "yes"; then
3031 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3033 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3034 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3035 # See also .m.o rule in Makefile.in */
3036 # FIXME: are all these flags really needed? Document here why. */
3037 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3038 ## Extra CFLAGS applied to src/*.m files.
3039 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3041 # We also have mouse menus.
3046 if test "${HAVE_W32}" = "yes"; then
3050 ### Use session management (-lSM -lICE) if available
3053 if test "${HAVE_X11}" = "yes"; then
3054 AC_CHECK_HEADER(X11/SM/SMlib.h,
3055 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3057 if test "${HAVE_X_SM}" = "yes"; then
3058 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3062 *) LIBS="$LIBXSM $LIBS" ;;
3068 ### Use XRandr (-lXrandr) if available
3070 if test "${HAVE_X11}" = "yes"; then
3071 XRANDR_REQUIRED=1.2.2
3072 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3073 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3074 if test $HAVE_XRANDR = no; then
3075 # Test old way in case pkg-config doesn't have it (older machines).
3076 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3077 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3078 if test $HAVE_XRANDR = yes; then
3079 XRANDR_LIBS=-lXrandr
3080 AC_SUBST(XRANDR_LIBS)
3083 if test $HAVE_XRANDR = yes; then
3084 SAVE_CFLAGS="$CFLAGS"
3086 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3087 LIBS="$XRANDR_LIBS $LIBS"
3088 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3089 CFLAGS="$SAVE_CFLAGS"
3092 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3096 ### Use Xinerama (-lXinerama) if available
3098 if test "${HAVE_X11}" = "yes"; then
3099 XINERAMA_REQUIRED=1.0.2
3100 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3101 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3103 if test $HAVE_XINERAMA = no; then
3104 # Test old way in case pkg-config doesn't have it (older machines).
3105 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3106 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3107 if test $HAVE_XINERAMA = yes; then
3108 XINERAMA_LIBS=-lXinerama
3109 AC_SUBST(XINERAMA_LIBS)
3112 if test $HAVE_XINERAMA = yes; then
3113 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3118 ### Use libxml (-lxml2) if available
3119 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3121 if test "${with_xml2}" != "no"; then
3122 ### I'm not sure what the version number should be, so I just guessed.
3123 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3124 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3125 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3126 SAVE_CPPFLAGS="$CPPFLAGS"
3127 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3128 AC_CHECK_HEADER(libxml/HTMLparser.h,
3129 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3130 [#include <libxml/HTMLparser.h>])])
3131 CPPFLAGS="$SAVE_CPPFLAGS"
3132 if test "${HAVE_LIBXML2}" = "yes"; then
3133 LIBXML2_LIBS="-lxml2"
3134 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3137 if test "${HAVE_LIBXML2}" = "yes"; then
3138 if test "${opsys}" != "mingw32"; then
3139 LIBS="$LIBXML2_LIBS $LIBS"
3140 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3144 if test "${HAVE_LIBXML2}" = "yes"; then
3145 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3152 AC_SUBST(LIBXML2_LIBS)
3153 AC_SUBST(LIBXML2_CFLAGS)
3155 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3156 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3157 if test "${opsys}" = "mingw32"; then
3158 emacs_cv_netdb_declares_h_errno=yes
3160 AC_CACHE_CHECK(whether netdb declares h_errno,
3161 emacs_cv_netdb_declares_h_errno,
3162 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3163 [[return h_errno;]])],
3164 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3165 if test $emacs_cv_netdb_declares_h_errno = yes; then
3166 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3169 # sqrt and other floating-point functions such as fmod and frexp
3170 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3171 if test "${opsys}" != "mingw32"; then
3172 AC_CHECK_LIB(m, sqrt)
3175 # Check for mail-locking functions in a "mail" library. Probably this should
3176 # have the same check as for liblockfile below.
3177 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3178 if test $have_mail = yes; then
3180 LIBS="$LIBS_MAIL $LIBS"
3181 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3185 dnl Debian, at least:
3186 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3187 if test $have_lockfile = yes; then
3188 LIBS_MAIL=-llockfile
3189 LIBS="$LIBS_MAIL $LIBS"
3190 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3192 # If we have the shared liblockfile, assume we must use it for mail
3193 # locking (e.g. Debian). If we couldn't link against liblockfile
3194 # (no liblockfile.a installed), ensure that we don't need to.
3195 dnl This works for files generally, not just executables.
3196 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3197 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3198 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3199 if test $ac_cv_prog_liblockfile = yes; then
3200 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3201 This probably means that movemail could lose mail.
3202 There may be a `development' package to install containing liblockfile.])
3205 AC_CHECK_HEADERS_ONCE(maillock.h)
3208 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3209 ## interlock access to the mail spool. The alternative is a lock file named
3210 ## /usr/spool/mail/$USER.lock.
3213 aix4-2) mail_lock="lockf" ;;
3215 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3217 ## On GNU/Linux systems, both methods are used by various mail programs.
3218 ## I assume most people are using newer mailers that have heard of flock.
3219 ## Change this if you need to.
3220 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3221 ## configure gets the right answers, and that means *NOT* using flock.
3222 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3223 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3224 ## Debian maintainer hasn't provided a clean fix for Emacs.
3225 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3226 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3227 ## correct logic. -- fx
3228 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3229 ## liblockfile is a Free Software replacement for libmail, used on
3230 ## Debian systems and elsewhere. -rfr.
3233 if test $have_mail = yes || test $have_lockfile = yes; then
3234 test $ac_cv_header_maillock_h = yes && mail_lock=no
3239 mail_lock="none-needed" ;;
3243 case "$mail_lock" in
3244 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3246 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3250 *) BLESSMAIL_TARGET="need-blessmail" ;;
3252 AC_SUBST(BLESSMAIL_TARGET)
3255 AC_CHECK_FUNCS(accept4 gethostname \
3256 getrusage get_current_dir_name \
3258 select getpagesize setlocale \
3259 getrlimit setrlimit shutdown getaddrinfo \
3260 strsignal setitimer \
3261 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3262 gai_strerror mkostemp mkstemp getline getdelim sync \
3263 difftime posix_memalign \
3264 getpwent endpwent getgrent endgrent \
3266 cfmakeraw cfsetspeed copysign __executable_start log2)
3268 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3269 ## has a broken `rint' in some library versions including math library
3270 ## version number A.09.05.
3271 ## You can fix the math library by installing patch number PHSS_4630.
3272 ## But we can fix it more reliably for Emacs by just not using rint.
3273 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3276 *) AC_CHECK_FUNCS(random rint) ;;
3279 dnl Cannot use AC_CHECK_FUNCS
3280 AC_CACHE_CHECK([for __builtin_unwind_init],
3281 emacs_cv_func___builtin_unwind_init,
3282 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3283 emacs_cv_func___builtin_unwind_init=yes,
3284 emacs_cv_func___builtin_unwind_init=no)])
3285 if test $emacs_cv_func___builtin_unwind_init = yes; then
3286 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3287 [Define to 1 if you have the `__builtin_unwind_init' function.])
3290 AC_CHECK_HEADERS_ONCE(sys/un.h)
3295 AC_CHECK_FUNCS(grantpt)
3297 # PTY-related GNU extensions.
3298 AC_CHECK_FUNCS(getpt posix_openpt)
3300 # Check this now, so that we will NOT find the above functions in ncurses.
3301 # That is because we have not set up to link ncurses in lib-src.
3302 # It's better to believe a function is not available
3303 # than to expect to find it in ncurses.
3304 # Also we need tputs and friends to be able to build at all.
3305 AC_MSG_CHECKING([for library containing tputs])
3306 # Run a test program that contains a call to tputs, a call that is
3307 # never executed. This tests whether a pre-'main' dynamic linker
3308 # works with the library. It's too much trouble to actually call
3309 # tputs in the test program, due to portability hassles. When
3310 # cross-compiling, assume the test program will run if it links.
3311 AC_DEFUN([tputs_link_source], [
3313 [[extern void tputs (const char *, int, int (*)(int));
3314 int main (int argc, char **argv)
3317 tputs (argv[0], 0, 0);
3321 if test "${opsys}" = "mingw32"; then
3324 # Maybe curses should be tried earlier?
3325 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3326 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3328 if test -z "$tputs_library"; then
3332 LIBS_TERMCAP=-l$tputs_library
3334 LIBS="$LIBS_TERMCAP $LIBS"
3336 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3337 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3339 if test "X$msg" != Xno; then
3344 AC_MSG_RESULT([$msg])
3345 if test "X$msg" = Xno; then
3346 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3347 The following libraries were tried (in order):
3348 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3349 Please try installing whichever of these libraries is most appropriate
3350 for your system, together with its header files.
3351 For example, a libncurses-dev(el) or similar package.])
3354 ## Use termcap instead of terminfo?
3355 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3357 ## FIXME? In the cases below where we unconditionally set
3358 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3359 ## if that was found above to have tputs.
3360 ## Should we use the gnu* logic everywhere?
3362 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3363 ## The ncurses library has been moved out of the System framework in
3364 ## Mac OS X 10.2. So if configure detects it, set the command-line
3365 ## option to use it.
3366 darwin) LIBS_TERMCAP="-lncurses" ;;
3368 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3371 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3372 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3373 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3374 [[#if __FreeBSD_version < 400000
3377 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3379 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3381 if test $emacs_cv_freebsd_terminfo = yes; then
3382 LIBS_TERMCAP="-lncurses"
3385 LIBS_TERMCAP="-ltermcap"
3395 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3397 LIBS_TERMCAP="-ltermcap"
3401 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3403 ## hpux: Make sure we get select from libc rather than from libcurses
3404 ## because libcurses on HPUX 10.10 has a broken version of select.
3405 ## We used to use -lc -lcurses, but this may be cleaner.
3406 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3407 # set that way, now it uses the default). Isn't this a contradiction?
3408 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3412 TERMCAP_OBJ=tparam.o
3413 if test $TERMINFO = yes; then
3414 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3415 TERMCAP_OBJ=terminfo.o
3417 AC_SUBST(LIBS_TERMCAP)
3418 AC_SUBST(TERMCAP_OBJ)
3421 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3422 # On Darwin, res_init appears not to be useful: see bug#562 and
3423 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3426 if test $opsys != darwin; then
3428 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3429 #include <arpa/nameser.h>
3430 #include <resolv.h>]],
3431 [[return res_init();]])],
3432 have_res_init=yes, have_res_init=no)
3433 if test "$have_res_init" = no; then
3435 LIBS="$LIBS -lresolv"
3436 AC_MSG_CHECKING(for res_init with -lresolv)
3437 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3438 #include <arpa/nameser.h>
3439 #include <resolv.h>]],
3440 [[return res_init();]])],
3441 have_res_init=yes, have_res_init=no)
3442 AC_MSG_RESULT($have_res_init)
3443 if test "$have_res_init" = yes ; then
3449 if test "$have_res_init" = yes; then
3450 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3454 # Do we need the Hesiod library to provide the support routines?
3455 dnl FIXME? Should we be skipping this on Darwin too?
3457 if test "$with_hesiod" != no ; then
3458 # Don't set $LIBS here -- see comments above. FIXME which comments?
3459 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3460 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3461 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3462 if test "$resolv" = yes ; then
3467 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3468 hesiod=yes, :, $RESOLVLIB)])
3470 if test x"$hesiod" = xyes; then
3476 # Do we need libresolv (due to res_init or Hesiod)?
3477 if test "$resolv" = yes && test $opsys != darwin; then
3484 # These tell us which Kerberos-related libraries to use.
3491 if test "${with_kerberos}" != no; then
3492 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3493 if test $have_com_err = yes; then
3494 COM_ERRLIB=-lcom_err
3495 LIBS="$COM_ERRLIB $LIBS"
3497 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3498 if test $have_crypto = yes; then
3500 LIBS="$CRYPTOLIB $LIBS"
3502 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3503 if test $have_k5crypto = yes; then
3504 CRYPTOLIB=-lk5crypto
3505 LIBS="$CRYPTOLIB $LIBS"
3507 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3508 if test $have_krb5=yes; then
3510 LIBS="$KRB5LIB $LIBS"
3512 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3513 if test "${with_kerberos5}" = no; then
3514 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3515 if test $have_des425 = yes; then
3517 LIBS="$DESLIB $LIBS"
3519 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3520 if test $have_des = yes; then
3522 LIBS="$DESLIB $LIBS"
3525 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3526 if test $have_krb4 = yes; then
3528 LIBS="$KRB4LIB $LIBS"
3530 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3531 if test $have_krb = yes; then
3533 LIBS="$KRB4LIB $LIBS"
3538 if test "${with_kerberos5}" != no; then
3539 AC_CHECK_HEADERS(krb5.h,
3540 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3541 [#include <krb5.h>])])
3543 AC_CHECK_HEADERS(krb.h,,
3544 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3545 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3547 AC_CHECK_HEADERS(com_err.h)
3550 AC_SUBST(COM_ERRLIB)
3556 AC_CHECK_FUNCS_ONCE(tzset)
3557 AC_MSG_CHECKING(whether localtime caches TZ)
3558 AC_CACHE_VAL(emacs_cv_localtime_cache,
3559 [if test x$ac_cv_func_tzset = xyes; then
3560 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3561 char TZ_GMT0[] = "TZ=GMT0";
3562 char TZ_PST8[] = "TZ=PST8";
3565 time_t now = time ((time_t *) 0);
3566 int hour_GMT0, hour_unset;
3567 if (putenv (TZ_GMT0) != 0)
3569 hour_GMT0 = localtime (&now)->tm_hour;
3571 hour_unset = localtime (&now)->tm_hour;
3572 if (putenv (TZ_PST8) != 0)
3574 if (localtime (&now)->tm_hour == hour_GMT0)
3577 if (localtime (&now)->tm_hour != hour_unset)
3580 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3581 [# If we have tzset, assume the worst when cross-compiling.
3582 emacs_cv_localtime_cache=yes])
3584 # If we lack tzset, report that localtime does not cache TZ,
3585 # since we can't invalidate the cache if we don't have tzset.
3586 emacs_cv_localtime_cache=no
3588 AC_MSG_RESULT($emacs_cv_localtime_cache)
3589 if test $emacs_cv_localtime_cache = yes; then
3590 AC_DEFINE(LOCALTIME_CACHE, 1,
3591 [Define to 1 if localtime caches TZ.])
3595 AC_CHECK_FUNC(socket, , ok_so_far=no)
3596 if test $ok_so_far = yes; then
3597 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3599 if test $ok_so_far = yes; then
3600 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3602 if test $ok_so_far = yes; then
3603 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3604 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3605 [Define to 1 if you have inet sockets.])
3608 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3609 dnl This can be removed once we assume Autoconf 2.70.
3611 *-solaris2.4 | *-solaris2.4.*)
3612 dnl Disable the Autoconf-generated vfork test.
3613 : ${ac_cv_func_vfork_works=no};;
3618 AC_CHECK_FUNCS(snprintf)
3620 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3623 AC_MSG_CHECKING([whether GLib is linked in])
3624 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3627 [[g_print ("Hello world");]])],
3630 AC_MSG_RESULT([$links_glib])
3631 if test "${links_glib}" = "yes"; then
3632 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3633 if test "$HAVE_NS" = no;then
3639 dnl Adapted from Haible's version.
3640 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3641 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3642 [[char* cs = nl_langinfo(CODESET);]])],
3643 emacs_cv_langinfo_codeset=yes,
3644 emacs_cv_langinfo_codeset=no)
3646 if test $emacs_cv_langinfo_codeset = yes; then
3647 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3648 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3653 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3654 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3655 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3656 if test "$emacs_cv_c_restrict_arr" = yes; then
3657 AC_DEFINE(__restrict_arr, __restrict,
3658 [Define to compiler's equivalent of C99 restrict keyword in array
3659 declarations. Define as empty for no equivalent.])
3662 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3663 dnl how the tty code is related to POSIX and/or other versions of termios.
3664 dnl The following looks like a useful start.
3666 dnl AC_SYS_POSIX_TERMIOS
3667 dnl if test $ac_cv_sys_posix_termios = yes; then
3668 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3669 dnl and macros for terminal control.])
3670 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3673 dnl Turned on June 1996 supposing nobody will mind it.
3674 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3675 if test "${opsys}" != "mingw32"; then
3676 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3677 in the full name stands for the login id.])
3680 dnl Every platform that uses configure supports this.
3681 dnl There is a create-lockfiles option you can
3682 dnl customize if you do not want the lock files to be written.
3683 dnl So it is not clear that this #define still needs to exist.
3684 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3685 so that Emacs can tell instantly when you try to modify a file that
3686 someone else has modified in his/her Emacs.])
3688 dnl Everybody supports this, except MS.
3689 dnl Seems like the kind of thing we should be testing for, though.
3690 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3691 if test "${opsys}" != "mingw32"; then
3692 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3695 dnl Everybody supports this, except MS-DOS.
3696 dnl Seems like the kind of thing we should be testing for, though.
3697 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3698 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3699 4.2-compatible sockets.])
3701 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3703 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3704 a null file, or a data sink.])
3705 if test "${opsys}" = "mingw32"; then
3706 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3708 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3711 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3712 if test "${opsys}" = "mingw32"; then
3713 AC_DEFINE(SEPCHAR, [';'])
3715 AC_DEFINE(SEPCHAR, [':'])
3718 dnl Everybody supports this, except MS-DOS.
3719 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3721 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3724 AC_DEFINE(DIRECTORY_SEP, ['/'],
3725 [Character that separates directories in a file name.])
3727 if test "${opsys}" = "mingw32"; then
3728 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3729 [Returns true if character is a device separator.])
3731 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3732 [Returns true if character is a directory separator.])
3734 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3735 [Returns true if character is any form of separator.])
3737 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3738 [Returns true if character is a device separator.])
3740 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3741 [Returns true if character is a directory separator.])
3743 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3744 [Returns true if character is any form of separator.])
3747 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3751 dnl Unfortunately without libXmu we cannot support EditRes.
3752 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3753 AC_DEFINE(NO_EDITRES, 1)
3758 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3759 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3760 AC_DEFINE(NO_EDITRES, 1)
3766 irix6-5 | sol2* | unixware )
3767 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3768 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3769 dnl need the constant to dimension an array. So wire in the appropriate
3771 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3775 emacs_broken_SIGIO=no
3778 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3779 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3780 hpux* | irix6-5 | openbsd | sol2* | unixware | gnu-kfreebsd )
3781 emacs_broken_SIGIO=yes
3785 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3786 dnl the way this system works, libc functions that return malloced
3787 dnl memory use the libc malloc implementation. Calling xfree or
3788 dnl xrealloc on the results of such functions results in a crash.
3790 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3791 dnl but that does not currently work on this system.
3793 dnl It is possible to completely override the malloc implementation on
3794 dnl AIX, but that involves putting the malloc functions in a shared
3795 dnl library and setting the MALLOCTYPE environment variable to point to
3796 dnl that shared library.
3798 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3799 dnl to avoid a crash just use the Emacs implementation for that function.
3801 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3802 dnl of this file, so that we do not check for get_current_dir_name
3803 dnl on AIX. But that might be fragile if something else ends
3804 dnl up testing for get_current_dir_name as a dependency.
3805 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3806 get_current_dir_name should not be used.])
3810 dnl Circumvent a bug in FreeBSD. In the following sequence of
3811 dnl writes/reads on a PTY, read(2) returns bogus data:
3813 dnl write(2) 1022 bytes
3814 dnl write(2) 954 bytes, get EAGAIN
3815 dnl read(2) 1024 bytes in process_read_output
3816 dnl read(2) 11 bytes in process_read_output
3818 dnl That is, read(2) returns more bytes than have ever been written
3819 dnl successfully. The 1033 bytes read are the 1022 bytes written
3820 dnl successfully after processing (for example with CRs added if the
3821 dnl terminal is set up that way which it is here). The same bytes will
3822 dnl be seen again in a later read(2), without the CRs.
3823 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3824 work around an issue when reading from a PTY.])
3830 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3831 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3836 darwin | dragonfly | freebsd | netbsd | openbsd )
3837 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3838 close a pty to make it a controlling terminal (it is already a
3839 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3843 dnl FIXME Surely we can test for this rather than hard-code it.
3845 netbsd | openbsd) sound_device="/dev/audio" ;;
3846 *) sound_device="/dev/dsp" ;;
3850 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3851 [Name of the default sound device.])
3854 dnl Emacs can read input using SIGIO and buffering characters itself,
3855 dnl or using CBREAK mode and making C-g cause SIGINT.
3856 dnl The choice is controlled by the variable interrupt_input.
3858 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3860 dnl Emacs uses the presence of the USABLE_SIGIO macro
3861 dnl to indicate whether or not signal-driven I/O is possible. It uses
3862 dnl INTERRUPT_INPUT to decide whether to use it by default.
3864 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3865 dnl CBREAK mode has two disadvantages
3866 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3867 dnl I hear that in system V this problem does not exist.
3868 dnl 2) Control-G causes output to be discarded.
3869 dnl I do not know whether this can be fixed in system V.
3871 dnl Another method of doing input is planned but not implemented.
3872 dnl It would have Emacs fork off a separate process
3873 dnl to read the input and send it to the true Emacs process
3876 darwin | gnu-linux | gnu-kfreebsd )
3877 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3882 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3883 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3884 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3885 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3886 dnl taking float or double parameters.
3888 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3889 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3890 file defines `NeedWidePrototypes' as `NO'.])
3895 dnl Used in process.c, this must be a loop, even if it only runs once.
3896 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3897 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3898 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3899 dnl trying suffixes 0-16.
3900 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3901 first PTY, if PTYs are supported.])
3902 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3903 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3904 end of a PTY, if non-standard.])
3905 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3906 end of a PTY, if non-standard.])
3910 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3911 dnl You allocate a pty by opening /dev/ptc to get the master side.
3912 dnl To get the name of the slave side, you just ttyname() the master side.
3913 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3914 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3918 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3919 dnl multi-line AC_DEFINEs are hard. :(
3920 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)])
3921 AC_DEFINE(PTY_NAME_SPRINTF, [])
3922 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3925 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3927 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3928 dnl Not used, because PTY_ITERATION is defined.
3929 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3930 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3931 dnl But we don't have to block SIGCHLD because it is blocked in the
3932 dnl implementation of grantpt.
3933 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3934 AC_DEFINE(PTY_NAME_SPRINTF, [])
3935 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3939 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3942 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
3944 if test "x$ac_cv_func_grantpt" = xyes; then
3945 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3946 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3947 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3948 dnl to prevent sigchld_handler from intercepting the child's death.
3949 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) { emacs_close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3950 dnl if HAVE_POSIX_OPENPT
3951 if test "x$ac_cv_func_posix_openpt" = xyes; then
3952 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY)])
3953 AC_DEFINE(PTY_NAME_SPRINTF, [])
3955 elif test "x$ac_cv_func_getpt" = xyes; then
3956 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3957 AC_DEFINE(PTY_NAME_SPRINTF, [])
3959 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3962 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3967 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3968 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3969 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3973 dnl It looks like this cannot be right, because it is not a loop.
3974 dnl However, process.c actually does this:
3980 dnl which presumably makes it OK, since irix == sgi (?).
3981 dnl FIXME it seems like this special treatment is unnecessary?
3982 dnl Why can't irix use a single-trip loop like eg cygwin?
3983 AC_DEFINE(PTY_ITERATION, [])
3984 dnl Not used, because PTY_ITERATION is defined.
3985 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3986 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); }])
3987 dnl No need to get the pty name at all.
3988 AC_DEFINE(PTY_NAME_SPRINTF, [])
3989 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3990 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3994 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3995 dnl from intercepting that death. If any child but grantpt's should die
3996 dnl within, it should be caught after sigrelse(2).
3997 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); }])
4001 dnl Comments are as per sol2*.
4002 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); }])
4009 dnl This change means that we don't loop through allocate_pty too
4010 dnl many times in the (rare) event of a failure.
4011 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4012 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4013 dnl Push various streams modules onto a PTY channel. Used in process.c.
4014 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.])
4019 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4020 "typing" a signal character on the pty.])
4023 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4024 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4025 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4026 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4029 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4030 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4031 gnu-linux | gnu-kfreebsd )
4033 AC_MSG_CHECKING([for signals via characters])
4034 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4035 #include <linux/version.h>
4036 #if LINUX_VERSION_CODE < 0x20400
4037 # error "Linux version too old"
4039 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4041 AC_MSG_RESULT([$emacs_signals_via_chars])
4042 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4047 dnl Used in lisp.h, emacs.c, vm-limit.c
4048 dnl NEWS.18 describes this as "a number which contains
4049 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4050 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4051 stored in a Lisp_Object.])
4052 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4056 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4057 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4060 dnl The data segment on this machine always starts at address 0x40000000.
4061 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4064 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4069 AH_TEMPLATE(TAB3, [Undocumented.])
4072 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4074 gnu | dragonfly | freebsd | netbsd | openbsd )
4075 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4076 AC_DEFINE(TAB3, OXTABS)
4079 gnu-linux | gnu-kfreebsd )
4080 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4084 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4085 [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)],
4086 [Mark a secondary stack, like the register stack on the ia64.]), [])
4090 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4091 run_time_remap; for HPUX.])
4096 dnl This won't be used automatically yet. We also need to know, at least,
4097 dnl that the stack is continuous.
4098 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4099 registers relevant for conservative garbage collection in the jmp_buf.])
4103 dnl Not all the architectures are tested, but there are Debian packages
4104 dnl for SCM and/or Guile on them, so the technique must work. See also
4105 dnl comments in alloc.c concerning setjmp and gcc.
4106 dnl Fixme: it's probably safe to just use the GCC conditional below.
4107 gnu-linux | gnu-kfreebsd )
4108 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4109 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4110 || defined __alpha__ || defined __mips__ || defined __s390__ \
4111 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4112 || defined __ia64__ || defined __sh__
4115 # error "setjmp not known to work on this arch"
4117 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4122 if test x$GCC = xyes; then
4123 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4124 AC_DEFINE(GC_SETJMP_WORKS, 1)
4127 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4128 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4129 AC_DEFINE(GC_SETJMP_WORKS, 1)
4134 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4135 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4138 [[#include <setjmp.h>
4140 # define _longjmp longjmp
4145 _longjmp (j, 1);]])],
4146 [emacs_cv_func__setjmp=yes],
4147 [emacs_cv_func__setjmp=no])])
4148 if test $emacs_cv_func__setjmp = yes; then
4149 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4151 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4154 [[#include <setjmp.h>
4157 if (! sigsetjmp (j, 1))
4158 siglongjmp (j, 1);]])],
4159 [emacs_cv_func_sigsetjmp=yes],
4160 [emacs_cv_func_sigsetjmp=no])])
4161 if test $emacs_cv_func_sigsetjmp = yes; then
4162 AC_DEFINE([HAVE_SIGSETJMP], 1,
4163 [Define to 1 if sigsetjmp and siglongjmp work.
4164 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4170 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4171 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4172 dnl and this is all we need.
4173 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4180 dnl Used in xfaces.c.
4181 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4182 some systems, where it requires time.h.])
4187 dnl Define symbols to identify the version of Unix this is.
4188 dnl Define all the symbols that apply correctly.
4189 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4190 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4191 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4192 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4197 dnl This symbol should be defined on AIX Version 3 ???????
4198 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4200 # error "_AIX not defined"
4202 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4206 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4210 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4211 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4212 dnl distinguish OS X from pure Darwin.
4213 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4216 gnu-linux | gnu-kfreebsd )
4218 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4223 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4228 AC_DEFINE(USG5_4, [])
4229 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4233 AC_DEFINE(DOS_NT, [])
4234 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4235 if test "x$ac_enable_checking" != "x" ; then
4236 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4242 AC_DEFINE(USG5_4, [])
4243 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4248 AC_DEFINE(USG5_4, [])
4252 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4255 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4256 emacs_cv_usable_FIONREAD=no
4260 emacs_cv_usable_FIONREAD=yes
4265 [AC_LANG_PROGRAM([[#include <sys/types.h>
4266 #include <sys/ioctl.h>
4268 # include <sys/filio.h>
4271 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4272 [emacs_cv_usable_FIONREAD=yes],
4273 [emacs_cv_usable_FIONREAD=no])
4276 if test $emacs_cv_usable_FIONREAD = yes; then
4277 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4279 if test $emacs_broken_SIGIO = no; then
4280 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4282 [AC_LANG_PROGRAM([[#include <fcntl.h>
4285 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4286 [emacs_cv_usable_SIGIO=yes],
4287 [emacs_cv_usable_SIGIO=no])],
4288 [emacs_cv_usable_SIGIO=yes],
4289 [emacs_cv_usable_SIGIO=no])
4290 if test $emacs_cv_usable_SIGIO = yes; then
4291 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4298 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
4299 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
4300 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
4301 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
4303 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4304 G_SLICE environment variable to "always-malloc" at startup, if
4309 dnl It works to open the pty's tty in the parent (Emacs), then
4310 dnl close and reopen it in the child.
4311 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4312 works to open a pty's tty in the parent process, then close and
4313 reopen it in the child.])
4317 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4318 use VSUSP instead of VSWTCH.])
4322 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4327 # Set up the CFLAGS for real compilation, so we can substitute it.
4328 CFLAGS="$REAL_CFLAGS"
4329 CPPFLAGS="$REAL_CPPFLAGS"
4331 ## Hack to detect a buggy GCC version.
4332 if test "x$GCC" = xyes \
4333 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4334 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4335 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4336 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4339 version=$PACKAGE_VERSION
4341 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4342 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4343 [Short copyright string for this version of Emacs.])
4346 ### Specify what sort of things we'll be editing into Makefile and config.h.
4347 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4349 AC_SUBST(configuration)
4354 AC_SUBST(exec_prefix)
4357 AC_SUBST(sharedstatedir)
4358 AC_SUBST(libexecdir)
4363 AC_SUBST(standardlisppath)
4364 AC_SUBST(locallisppath)
4366 AC_SUBST(x_default_search_path)
4368 AC_SUBST(archlibdir)
4373 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4374 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4375 ## end of LIBX_BASE, but nothing ever set it.
4376 AC_SUBST(LD_SWITCH_X_SITE)
4377 AC_SUBST(C_SWITCH_X_SITE)
4378 AC_SUBST(GNUSTEP_CFLAGS)
4380 ## Used in lwlib/Makefile.in.
4381 AC_SUBST(X_TOOLKIT_TYPE)
4383 AC_SUBST(ns_appbindir)
4384 AC_SUBST(ns_appresdir)
4386 AC_SUBST(GNU_OBJC_CFLAGS)
4387 AC_SUBST(OTHER_FILES)
4389 if test -n "${term_header}"; then
4390 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4391 [Define to the header for the built-in window system.])
4394 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4395 [Define to the canonical Emacs configuration name.])
4396 dnl Replace any embedded " characters (bug#13274).
4397 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g"`
4398 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4399 [Define to the options passed to configure.])
4400 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4401 define this to include extra configuration information.])
4405 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4412 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4413 AC_DEFINE(HAVE_X_WINDOWS, 1,
4414 [Define to 1 if you want to use the X window system.])
4416 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4418 if test "$HAVE_XFT" = "yes"; then
4419 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4420 elif test "$HAVE_FREETYPE" = "yes"; then
4421 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4431 if test "${USE_X_TOOLKIT}" != "none" ; then
4433 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4434 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4435 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4436 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4437 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4441 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4442 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4446 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4447 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4448 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4452 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4453 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4456 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4459 AC_SUBST(WIDGET_OBJ)
4462 case "$USE_X_TOOLKIT" in
4463 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4464 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4465 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4467 AC_SUBST(TOOLKIT_LIBW)
4469 if test "${opsys}" != "mingw32"; then
4470 if test "$USE_X_TOOLKIT" = "none"; then
4471 LIBXT_OTHER="\$(LIBXSM)"
4472 OLDXMENU_TARGET="really-oldXMenu"
4474 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4475 OLDXMENU_TARGET="really-lwlib"
4478 AC_SUBST(LIBXT_OTHER)
4480 ## The X Menu stuff is present in the X10 distribution, but missing
4481 ## from X11. If we have X10, just use the installed library;
4482 ## otherwise, use our own copy.
4483 if test "${HAVE_X11}" = "yes" ; then
4484 AC_DEFINE(HAVE_X11, 1,
4485 [Define to 1 if you want to use version 11 of X windows.
4486 Otherwise, Emacs expects to use version 10.])
4488 if test "$USE_X_TOOLKIT" = "none"; then
4489 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4491 OLDXMENU="\${lwlibdir}/liblw.a"
4493 LIBXMENU="\$(OLDXMENU)"
4494 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4495 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4497 ## For a syntactically valid Makefile; not actually used for anything.
4498 ## See comments in src/Makefile.in.
4500 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4501 if test "${HAVE_X_WINDOWS}" = "yes"; then
4510 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4517 AC_SUBST(OLDXMENU_TARGET)
4520 AC_SUBST(LIBX_OTHER)
4521 AC_SUBST(OLDXMENU_DEPS)
4523 if test "${HAVE_MENUS}" = "yes" ; then
4524 AC_DEFINE(HAVE_MENUS, 1,
4525 [Define to 1 if you have mouse menus.
4526 (This is automatic if you use X, but the option to specify it remains.)
4527 It is also defined with other window systems that support xmenu.c.])
4530 if test "${GNU_MALLOC}" = "yes" ; then
4531 AC_DEFINE(GNU_MALLOC, 1,
4532 [Define to 1 if you want to use the GNU memory allocator.])
4536 if test "${REL_ALLOC}" = "yes" ; then
4537 AC_DEFINE(REL_ALLOC, 1,
4538 [Define REL_ALLOC if you want to use the relocating allocator for
4541 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4543 AC_SUBST(RALLOC_OBJ)
4545 if test "$opsys" = "cygwin"; then
4546 CYGWIN_OBJ="sheap.o cygw32.o"
4547 ## Cygwin differs because of its unexec().
4549 POST_ALLOC_OBJ=lastfile.o
4550 elif test "$opsys" = "mingw32"; then
4553 POST_ALLOC_OBJ=lastfile.o
4556 PRE_ALLOC_OBJ=lastfile.o
4559 AC_SUBST(CYGWIN_OBJ)
4560 AC_SUBST(PRE_ALLOC_OBJ)
4561 AC_SUBST(POST_ALLOC_OBJ)
4563 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4564 # it temporarily reverts them to their pre-pkg-config values,
4565 # because gnulib needs to work with both src (which uses the
4566 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4567 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4568 # and it therefore needs to run in an environment where LIBS does not
4569 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4570 # for some package unrelated to lib-src.
4573 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4574 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4575 gl_ASSERT_NO_GNULIB_POSIXCHECK
4576 gl_ASSERT_NO_GNULIB_TESTS
4581 if test "${opsys}" = "mingw32"; then
4582 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4583 # Remove unneeded switches from the value of CC that goes to Makefiles
4584 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4588 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4591 ## The -headerpad option tells ld (see man page) to leave room at the
4592 ## end of the header for adding load commands. Needed for dumping.
4593 ## 0x690 is the total size of 30 segment load commands (at 56
4594 ## each); under Cocoa 31 commands are required.
4595 if test "$HAVE_NS" = "yes"; then
4596 libs_nsgui="-framework AppKit"
4597 if test "$NS_IMPL_COCOA" = "yes"; then
4598 libs_nsgui="$libs_nsgui -framework IOKit"
4605 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4607 ## This is here because src/Makefile.in did some extra fiddling around
4608 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4609 ## LD_SWITCH_SYSTEM_TEMACS instead,
4610 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4611 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4614 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4615 ## find X at run-time.
4616 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4617 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4618 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4619 ## had different values in configure (in ac_link) and src/Makefile.in.
4620 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4621 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4624 ## MinGW64 does not prepend an underscore to symbols, so we must
4625 ## pass a different -entry switch to linker. FIXME: It is better
4626 ## to make the entry points the same by changing unexw32.c.
4627 case "$canonical" in
4628 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4629 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4633 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4635 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4638 if test x$ac_enable_profiling != x ; then
4640 *freebsd | gnu-linux) ;;
4641 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4645 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4647 ## MinGW-specific post-link processing of temacs.
4648 TEMACS_POST_LINK=":"
4651 if test "${opsys}" = "mingw32"; then
4652 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4653 ADDSECTION="../nt/addsection\$(EXEEXT)"
4654 ## Preload heap size of temacs.exe in MB.
4655 case "$canonical" in
4656 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4657 *) EMACS_HEAPSIZE=27 ;;
4661 AC_SUBST(ADDSECTION)
4662 AC_SUBST(TEMACS_POST_LINK)
4663 AC_SUBST(EMACS_HEAPSIZE)
4665 ## Common for all window systems
4666 if test "$window_system" != "none"; then
4667 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4668 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4671 AC_SUBST(WINDOW_SYSTEM_OBJ)
4673 AH_TOP([/* GNU Emacs site configuration template file.
4675 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4676 Free Software Foundation, Inc.
4678 This file is part of GNU Emacs.
4680 GNU Emacs is free software: you can redistribute it and/or modify
4681 it under the terms of the GNU General Public License as published by
4682 the Free Software Foundation, either version 3 of the License, or
4683 (at your option) any later version.
4685 GNU Emacs is distributed in the hope that it will be useful,
4686 but WITHOUT ANY WARRANTY; without even the implied warranty of
4687 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4688 GNU General Public License for more details.
4690 You should have received a copy of the GNU General Public License
4691 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4694 /* No code in Emacs #includes config.h twice, but some bits of code
4695 intended to work with other packages as well (like gmalloc.c)
4696 think they can include it as many times as they like. */
4697 #ifndef EMACS_CONFIG_H
4698 #define EMACS_CONFIG_H
4701 AH_BOTTOM([#include <conf_post.h>
4703 #endif /* EMACS_CONFIG_H */
4712 #### Report on what we decided to do.
4713 #### Report GTK as a toolkit, even if it doesn't use Xt.
4714 #### It makes printing result more understandable as using GTK sets
4715 #### toolkit_scroll_bars to yes by default.
4716 if test "${HAVE_GTK}" = "yes"; then
4717 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4720 if test $USE_ACL -ne 0; then
4721 acl_summary="yes $LIB_ACL"
4727 Configured for \`${canonical}'.
4729 Where should the build process find the source code? ${srcdir}
4730 What compiler should emacs be built with? ${CC} ${CFLAGS}
4731 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4732 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4733 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4734 What window system should Emacs use? ${window_system}
4735 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4737 if test -n "${x_includes}"; then
4738 echo " Where do we find X Windows header files? ${x_includes}"
4740 echo " Where do we find X Windows header files? Standard dirs"
4742 if test -n "${x_libraries}"; then
4743 echo " Where do we find X Windows libraries? ${x_libraries}"
4745 echo " Where do we find X Windows libraries? Standard dirs"
4748 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4749 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4750 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4751 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4752 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4753 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4754 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4755 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4757 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4758 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4759 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4760 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4761 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4762 echo " Does Emacs use access control lists? ${acl_summary}"
4763 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4764 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4765 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4767 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4768 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4769 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4770 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4772 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4775 if test -n "${EMACSDATA}"; then
4776 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4778 if test -n "${EMACSDOC}"; then
4779 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4784 if test "$HAVE_NS" = "yes"; then
4786 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4787 The installed application will go to nextstep/Emacs.app and can be
4788 run or moved from there."
4789 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4790 echo "The application will be fully self-contained."
4792 echo "The lisp resources for the application will be installed under ${prefix}.
4793 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4794 to run if these resources are not installed."
4799 if test "${opsys}" = "cygwin"; then
4801 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4807 # Remove any trailing slashes in these variables.
4808 [test "${prefix}" != NONE &&
4809 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4810 test "${exec_prefix}" != NONE &&
4811 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4813 if test "$HAVE_NS" = "yes"; then
4814 if test "$NS_IMPL_GNUSTEP" = yes; then
4815 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4816 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4818 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4819 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4823 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4824 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4825 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4826 dnl (else you get "no `Makefile.am' found for any configure output").
4827 dnl This will work, but you get a config.status that is not quite right
4828 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4829 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4830 dnl it seems better to just live with the duplication.
4831 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4833 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4834 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4835 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4836 leim/Makefile nextstep/Makefile nt/Makefile])
4838 dnl test/ is not present in release tarfiles.
4839 opt_makefile=test/automated/Makefile
4841 if test -f "$srcdir/$opt_makefile.in"; then
4842 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4843 dnl Again, it's best not to use a variable. Though you can add
4844 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4845 AC_CONFIG_FILES([test/automated/Makefile])
4849 dnl admin/ may or may not be present.
4850 opt_makefile=admin/unidata/Makefile
4852 if test -f "$srcdir/$opt_makefile.in"; then
4853 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4854 AC_CONFIG_FILES([admin/unidata/Makefile])
4858 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4860 AC_SUBST(SUBDIR_MAKEFILES_IN)
4862 dnl Make the necessary directories, if they don't exist.
4863 AC_CONFIG_COMMANDS([mkdirs], [
4864 for dir in etc lisp ; do
4865 test -d ${dir} || mkdir ${dir}
4869 dnl You might wonder (I did) why epaths.h is generated by running make,
4870 dnl rather than just letting configure generate it from epaths.in.
4871 dnl One reason is that the various paths are not fully expanded (see above);
4872 dnl eg gamedir=${prefix}/var/games/emacs.
4873 dnl Secondly, the GNU Coding standards require that one should be able
4874 dnl to run `make prefix=/some/where/else' and override the values set
4875 dnl by configure. This also explains the `move-if-change' test and
4876 dnl the use of force in the `epaths-force' rule in Makefile.in.
4877 AC_CONFIG_COMMANDS([epaths], [
4878 echo creating src/epaths.h
4879 if test "${opsys}" = "mingw32"; then
4880 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4882 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4884 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4886 AC_CONFIG_COMMANDS([gdbinit], [
4887 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4888 echo creating src/.gdbinit
4889 echo "source $srcdir/src/.gdbinit" > src/.gdbinit