1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2013 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.3.50)
27 dnl This is the documented way to record the args passed to configure,
28 dnl rather than $ac_configure_args.
29 emacs_config_options="$@"
30 ## Add some environment variables, if they were passed via the environment
31 ## rather than on the command-line.
32 for var in CFLAGS CPPFLAGS LDFLAGS; do
33 case "$emacs_config_options" in
37 test x"$val" = x && continue
38 emacs_config_options="${emacs_config_options}${emacs_config_options:+ }$var=\"$val\""
41 AC_CONFIG_HEADER(src/config.h:src/config.in)
42 AC_CONFIG_SRCDIR(src/lisp.h)
43 AC_CONFIG_AUX_DIR(build-aux)
44 dnl Fairly arbitrary, older versions might work too.
45 AM_INIT_AUTOMAKE(1.11)
47 dnl Support for --program-prefix, --program-suffix and
48 dnl --program-transform-name options
51 dnl It is important that variables on the RHS not be expanded here,
52 dnl hence the single quotes. This is per the GNU coding standards, see
53 dnl (autoconf) Installation Directory Variables
54 dnl See also epaths.h below.
55 lispdir='${datadir}/emacs/${version}/lisp'
56 leimdir='${datadir}/emacs/${version}/leim'
57 standardlisppath='${lispdir}:${leimdir}'
58 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
59 '${datadir}/emacs/site-lisp'
60 lisppath='${locallisppath}:${standardlisppath}'
61 etcdir='${datadir}/emacs/${version}/etc'
62 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
63 docdir='${datadir}/emacs/${version}/etc'
64 gamedir='${localstatedir}/games/emacs'
66 dnl Special option to disable the most of other options.
68 [AS_HELP_STRING([--without-all],
69 [omit almost all features and build
70 small executable with minimal dependencies])],
71 with_features=$withval,
74 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
75 dnl Create a new --with option that defaults to being disabled.
76 dnl NAME is the base name of the option. The shell variable with_NAME
77 dnl will be set to either the user's value (if the option is
78 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
79 dnl option is not specified). Note that the shell variable name is
80 dnl constructed as autoconf does, by replacing non-alphanumeric
81 dnl characters with "_".
82 dnl HELP-STRING is the help text for the option.
83 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
84 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
85 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
88 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
89 dnl Create a new --with option that defaults to $enable_features.
90 dnl NAME is the base name of the option. The shell variable with_NAME
91 dnl will be set either to 'no' (for a plain --without-NAME) or to
92 dnl 'yes' (if the option is not specified). Note that the shell
93 dnl variable name is constructed as autoconf does, by replacing
94 dnl non-alphanumeric characters with "_".
95 dnl HELP-STRING is the help text for the option.
96 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
97 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
98 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
101 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
102 if test "$with_pop" = yes; then
103 AC_DEFINE(MAIL_USE_POP)
105 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
107 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
108 if test "$with_kerberos" != no; then
111 AH_TEMPLATE(KERBEROS,
112 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
114 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
115 if test "${with_kerberos5}" != no; then
116 if test "${with_kerberos}" = no; then
120 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
123 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
124 dnl FIXME hesiod support may not be present, so it seems like an error
125 dnl to define, or at least use, this unconditionally.
126 if test "$with_hesiod" != no; then
127 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
130 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
131 if test "$with_mmdf" != no; then
132 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
135 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
136 if test "$with_mail_unlink" != no; then
137 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
140 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
141 [string giving default POP mail host])],
142 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
144 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
146 dnl FIXME currently it is not the last.
147 dnl This should be the last --with option, because --with-x is
148 dnl added later on when we find the file name of X, and it's best to
149 dnl keep them together visually.
150 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
151 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
152 [ case "${withval}" in
153 y | ye | yes ) val=gtk ;;
155 l | lu | luc | luci | lucid ) val=lucid ;;
156 a | at | ath | athe | athen | athena ) val=athena ;;
157 m | mo | mot | moti | motif ) val=motif ;;
158 g | gt | gtk ) val=gtk ;;
162 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
163 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
164 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
165 `athena' and `lucid' are synonyms.])
171 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
172 if test "$with_wide_int" = yes; then
173 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
176 dnl _ON results in a '--without' option in the --help output, so
177 dnl the help text should refer to "don't compile", etc.
178 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
179 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
180 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
181 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
182 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
183 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
184 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
185 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
187 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
188 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
189 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
191 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
192 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
193 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
194 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
195 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI])
197 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
198 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
199 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
200 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
201 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
202 OPTION_DEFAULT_ON([acl],[don't compile with ACL support])
203 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
204 OPTION_DEFAULT_ON([inotify],[don't compile with inotify (file-watch) support])
206 ## For the times when you want to build Emacs but don't have
207 ## a suitable makeinfo, and can live without the manuals.
208 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
209 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
211 ## Makefile.in needs the cache file name.
214 ## This is an option because I do not know if all info/man support
215 ## compressed files, nor how to test if they do so.
216 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
217 if test $with_compress_info = yes; then
224 AC_ARG_WITH([pkg-config-prog],dnl
225 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
226 [file name of pkg-config for finding GTK and librsvg])])
227 if test "X${with_pkg_config_prog}" != X; then
228 if test "${with_pkg_config_prog}" != yes; then
229 PKG_CONFIG="${with_pkg_config_prog}"
233 AC_ARG_WITH(gameuser,dnl
234 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
235 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
236 && gameuser="${with_gameuser}"
237 test "X$gameuser" = X && gameuser=games
239 AC_ARG_WITH([gnustep-conf],dnl
240 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
241 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
242 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
243 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
244 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
245 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
247 AC_ARG_ENABLE(ns-self-contained,
248 [AS_HELP_STRING([--disable-ns-self-contained],
249 [disable self contained build under NeXTstep])],
250 EN_NS_SELF_CONTAINED=$enableval,
251 EN_NS_SELF_CONTAINED=yes)
253 AC_ARG_ENABLE(locallisppath,
254 [AS_HELP_STRING([--enable-locallisppath=PATH],
255 [directories Emacs should search for lisp files specific
257 if test "${enableval}" = "no"; then
259 elif test "${enableval}" != "yes"; then
260 locallisppath=${enableval}
263 AC_ARG_ENABLE(checking,
264 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
265 [enable expensive run-time checks. With LIST,
266 enable only specific categories of checks.
267 Categories are: all,yes,no.
268 Flags are: stringbytes, stringoverrun, stringfreelist,
269 xmallocoverrun, conslist, glyphs])],
270 [ac_checking_flags="${enableval}"],[])
271 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
272 for check in $ac_checking_flags
275 # these set all the flags to specific states
276 yes) ac_enable_checking=1 ;;
277 no) ac_enable_checking= ;
278 ac_gc_check_stringbytes= ;
279 ac_gc_check_string_overrun= ;
280 ac_gc_check_string_free_list= ;
281 ac_xmalloc_overrun= ;
282 ac_gc_check_cons_list= ;
284 all) ac_enable_checking=1 ;
285 ac_gc_check_stringbytes=1 ;
286 ac_gc_check_string_overrun=1 ;
287 ac_gc_check_string_free_list=1 ;
288 ac_xmalloc_overrun=1 ;
289 ac_gc_check_cons_list=1 ;
291 # these enable particular checks
292 stringbytes) ac_gc_check_stringbytes=1 ;;
293 stringoverrun) ac_gc_check_string_overrun=1 ;;
294 stringfreelist) ac_gc_check_string_free_list=1 ;;
295 xmallocoverrun) ac_xmalloc_overrun=1 ;;
296 conslist) ac_gc_check_cons_list=1 ;;
297 glyphs) ac_glyphs_debug=1 ;;
298 *) AC_MSG_ERROR(unknown check category $check) ;;
303 if test x$ac_enable_checking != x ; then
304 AC_DEFINE(ENABLE_CHECKING, 1,
305 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
307 if test x$ac_gc_check_stringbytes != x ; then
308 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
309 [Define this temporarily to hunt a bug. If defined, the size of
310 strings is redundantly recorded in sdata structures so that it can
311 be compared to the sizes recorded in Lisp strings.])
313 if test x$ac_gc_check_string_overrun != x ; then
314 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
315 [Define this to check for short string overrun.])
317 if test x$ac_gc_check_string_free_list != x ; then
318 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
319 [Define this to check the string free list.])
321 if test x$ac_xmalloc_overrun != x ; then
322 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
323 [Define this to check for malloc buffer overrun.])
325 if test x$ac_gc_check_cons_list != x ; then
326 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
327 [Define this to check for errors in cons list.])
329 if test x$ac_glyphs_debug != x ; then
330 AC_DEFINE(GLYPH_DEBUG, 1,
331 [Define this to enable glyphs debugging code.])
334 AC_ARG_ENABLE(check-lisp-object-type,
335 [AS_HELP_STRING([--enable-check-lisp-object-type],
336 [enable compile time checks for the Lisp_Object data type.
337 This is useful for development for catching certain types of bugs.])],
338 if test "${enableval}" != "no"; then
339 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
340 [Define this to enable compile time checks for the Lisp_Object data type.])
344 dnl The name of this option is unfortunate. It predates, and has no
345 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
346 dnl Actually, it stops it working.
347 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
348 AC_ARG_ENABLE(profiling,
349 [AS_HELP_STRING([--enable-profiling],
350 [build emacs with low-level, gprof profiling support.
351 Mainly useful for debugging Emacs itself. May not work on
352 all platforms. Stops profiler.el working.])],
353 [ac_enable_profiling="${enableval}"],[])
354 if test x$ac_enable_profiling != x ; then
355 PROFILING_CFLAGS="-DPROFILING=1 -pg"
359 AC_SUBST(PROFILING_CFLAGS)
361 AC_ARG_ENABLE(autodepend,
362 [AS_HELP_STRING([--enable-autodepend],
363 [automatically generate dependencies to .h-files.
364 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
366 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
368 AC_ARG_ENABLE(gtk-deprecation-warnings,
369 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
370 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
371 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
373 #### Make srcdir absolute, if it isn't already. It's important to
374 #### avoid running the file name through pwd unnecessarily, since pwd can
375 #### give you automounter prefixes, which can go away. We do all this
376 #### so Emacs can find its files when run uninstalled.
377 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
382 ## We may be able to use the $PWD environment variable to make this
383 ## absolute. But sometimes PWD is inaccurate.
384 ## Note: we used to use $PWD at the end instead of `pwd`,
385 ## but that tested only for a well-formed and valid PWD,
386 ## it did not object when PWD was well-formed and valid but just wrong.
387 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
391 srcdir=`(cd "$srcdir"; pwd)`
394 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
397 ### Canonicalize the configuration name.
401 configuration=${host_alias-${build_alias-$host}}
403 dnl This used to use changequote, but, apart from `changequote is evil'
404 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
405 dnl the great gob of text. Thus it's not processed for possible expansion.
406 dnl Just make sure the brackets remain balanced.
408 dnl Since Emacs can't find matching pairs of quotes, boundaries are
409 dnl indicated by comments.
413 ### If you add support for a new configuration, add code to this
414 ### switch statement to recognize your configuration name and select
415 ### the appropriate operating system file.
417 ### You would hope that you could choose an s/*.h
418 ### file based on the operating system portion. However, it turns out
419 ### that each s/*.h file is pretty manufacturer-specific.
420 ### So we basically have to have a special case for each
421 ### configuration name.
423 ### As far as handling version numbers on operating systems is
424 ### concerned, make sure things will fail in a fixable way. If
425 ### /etc/MACHINES doesn't say anything about version numbers, be
426 ### prepared to handle anything reasonably. If version numbers
427 ### matter, be sure /etc/MACHINES says something about it.
430 case "${canonical}" in
432 ## GNU/Linux and similar ports
447 ## FreeBSD kernel + glibc based userland
462 ## Apple Darwin / Mac OS X
464 case "${canonical}" in
471 ## Use fink packages if available.
472 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
473 ## if test -d /sw/include && test -d /sw/lib; then
474 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
475 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
484 ## HP 9000 series 700 and 800, running HP/UX
488 hppa*-hp-hpux1[1-9]* )
490 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
494 rs6000-ibm-aix4.[23]* )
497 powerpc-ibm-aix4.[23]* )
500 rs6000-ibm-aix[56]* )
503 powerpc-ibm-aix[56]* )
507 ## Silicon Graphics machines
511 # Without defining _LANGUAGE_C, things get masked out in the headers
512 # so that, for instance, grepping for `free' in stdlib.h fails and
513 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
514 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
519 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
520 | x86_64-*-solaris2* | x86_64-*-sunos5*)
521 case "${canonical}" in
523 amd64-*-*|x86_64-*-*) ;;
527 case "${canonical}" in
528 *-sunos5.6* | *-solaris2.6* )
532 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
534 emacs_check_sunpro_c=yes
536 *-sunos5* | *-solaris* )
538 emacs_check_sunpro_c=yes
541 ## Watch out for a compiler that we know will not work.
542 case "${canonical}" in
543 *-solaris* | *-sunos5* )
544 if [ "x$CC" = x/usr/ucb/cc ]; then
545 ## /usr/ucb/cc doesn't work;
546 ## we should find some other compiler that does work.
554 ## Intel 386 machines where we don't care about the manufacturer.
556 case "${canonical}" in
557 *-darwin* ) opsys=darwin ;;
558 *-sysv4.2uw* ) opsys=unixware ;;
559 *-sysv5uw* ) opsys=unixware ;;
560 *-sysv5OpenUNIX* ) opsys=unixware ;;
561 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
570 ### If the code above didn't choose an operating system, just choose
571 ### an operating system based on the configuration name. You really
572 ### only want to use this when you have no idea what the right
573 ### operating system is; if you know what operating systems a machine
574 ### runs, it's cleaner to make it explicit in the case statement
576 if test x"${opsys}" = x; then
577 case "${canonical}" in
578 *-gnu* ) opsys=gnu ;;
588 if test $unported = yes; then
589 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
590 Check `etc/MACHINES' for recognized configuration names.])
594 #### Choose a compiler.
596 dnl Sets GCC=yes if using gcc.
600 if test x$GCC = xyes; then
601 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
603 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
606 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
607 # as we don't use them.
608 AC_DEFUN([gl_FCNTL_O_FLAGS])
609 # Avoid gnulib's threadlib module, as we do threads our own way.
610 AC_DEFUN([gl_THREADLIB])
612 # Initialize gnulib right after choosing the compiler.
613 dnl Amongst other things, this sets AR and ARFLAGS.
616 if test "$ac_test_CFLAGS" != set; then
617 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
618 # if -g3 works and the user does not specify CFLAGS.
619 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
622 emacs_g3_CFLAGS='-g3';;
624 emacs_g3_CFLAGS='-g3 -O2';;
628 if test -n "$emacs_g3_CFLAGS"; then
629 emacs_save_CFLAGS=$CFLAGS
630 CFLAGS=$emacs_g3_CFLAGS
631 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
632 [emacs_cv_prog_cc_g3],
633 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
634 [emacs_cv_prog_cc_g3=yes],
635 [emacs_cv_prog_cc_g3=no])])
636 if test $emacs_cv_prog_cc_g3 != yes; then
637 CFLAGS=$emacs_save_CFLAGS
644 # No optimization flag was inferred for this non-GCC compiler.
645 # Try -O. This is needed for xlc on AIX; see Bug#14258.
646 emacs_save_CFLAGS=$CFLAGS
647 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
649 AC_CACHE_CHECK([whether $CC accepts -O],
650 [emacs_cv_prog_cc_o],
651 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
652 [emacs_cv_prog_cc_o=yes],
653 [emacs_cv_prog_cc_o=no])])
654 if test $emacs_cv_prog_cc_o != yes; then
655 CFLAGS=$emacs_save_CFLAGS
660 AC_ARG_ENABLE([gcc-warnings],
661 [AS_HELP_STRING([--enable-gcc-warnings],
662 [turn on lots of GCC warnings/errors. This is intended for
663 developers, and may generate false alarms when used
664 with older or non-GNU development tools.])],
667 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
669 gl_gcc_warnings=$enableval],
673 AC_ARG_ENABLE(link-time-optimization,
674 [AS_HELP_STRING([--enable-link-time-optimization],
675 [build emacs with link-time optimization.
676 This is supported only for GCC since 4.5.0.])],
677 if test "${enableval}" != "no"; then
678 AC_MSG_CHECKING([whether link-time optimization is supported])
680 if test x$GCC = xyes; then
681 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
682 if test x$CPUS != x; then
688 CFLAGS="$CFLAGS $LTO"
689 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
690 [ac_lto_supported=yes], [ac_lto_supported=no])
693 AC_MSG_RESULT([$ac_lto_supported])
694 if test "$ac_lto_supported" = "yes"; then
695 CFLAGS="$CFLAGS $LTO"
699 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
700 # ------------------------------------------------
701 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
702 # Otherwise, run RUN-IF-NOT-FOUND.
703 AC_DEFUN([gl_GCC_VERSION_IFELSE],
707 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
710 # error "your version of gcc is older than $1.$2"
717 # When compiling with GCC, prefer -isystem to -I when including system
718 # include files, to avoid generating useless diagnostics for the files.
719 if test "$gl_gcc_warnings" != yes; then
724 # This, $nw, is the list of warnings we disable.
727 case $with_x_toolkit in
728 lucid | athena | motif)
729 # Old toolkits mishandle 'const'.
730 nw="$nw -Wwrite-strings"
733 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
736 AC_SUBST([WERROR_CFLAGS])
738 nw="$nw -Waggregate-return" # anachronistic
739 nw="$nw -Wlong-long" # C90 is anachronistic
740 nw="$nw -Wc++-compat" # We don't care about C++ compilers
741 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
742 nw="$nw -Wtraditional" # Warns on #elif which we use often
743 nw="$nw -Wcast-qual" # Too many warnings for now
744 nw="$nw -Wconversion" # Too many warnings for now
745 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
746 nw="$nw -Wsign-conversion" # Too many warnings for now
747 nw="$nw -Woverlength-strings" # Not a problem these days
748 nw="$nw -Wtraditional-conversion" # Too many warnings for now
749 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
750 nw="$nw -Wpadded" # Our structs are not padded
751 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
752 nw="$nw -Wlogical-op" # any use of fwrite provokes this
753 nw="$nw -Wformat-nonliteral" # we do this a lot
754 nw="$nw -Wvla" # warnings in gettext.h
755 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
756 nw="$nw -Wswitch-enum" # Too many warnings for now
757 nw="$nw -Wswitch-default" # Too many warnings for now
758 nw="$nw -Wfloat-equal" # warns about high-quality code
759 nw="$nw -Winline" # OK to ignore 'inline'
760 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
761 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
762 # signed overflow has undefined behavior
763 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
764 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
766 # Emacs doesn't care about shadowing; see
767 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
770 # Emacs's use of alloca inhibits protecting the stack.
771 nw="$nw -Wstack-protector"
773 # The following line should be removable at some point.
774 nw="$nw -Wsuggest-attribute=pure"
776 gl_MANYWARN_ALL_GCC([ws])
777 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
781 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
782 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
783 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
784 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
785 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
786 gl_WARN_ADD([-Wno-format-nonliteral])
788 # In spite of excluding -Wlogical-op above, it is enabled, as of
789 # gcc 4.5.0 20090517.
790 gl_WARN_ADD([-Wno-logical-op])
792 gl_WARN_ADD([-fdiagnostics-show-option])
793 gl_WARN_ADD([-funit-at-a-time])
795 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
796 AH_VERBATIM([FORTIFY_SOURCE],
797 [/* Enable compile-time and run-time bounds-checking, and some warnings,
798 without upsetting glibc 2.15+. */
799 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
800 # define _FORTIFY_SOURCE 2
803 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
805 # We use a slightly smaller set of warning options for lib/.
806 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
808 nw="$nw -Wunused-macros"
810 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
811 AC_SUBST([GNULIB_WARN_CFLAGS])
816 dnl Some other nice autoconf tests.
817 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
820 dnl if test "x$RANLIB" = x; then
825 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
826 dnl can be made to directories. This is not relevant for our usage, and
827 dnl excludes some cases that work fine for us. Eg MS Windows or files
828 dnl hosted on AFS, both examples where simple links work, but links to
829 dnl directories fail. We use a cut-down version instead.
832 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
833 rm -f conf$$ conf$$.file
835 LN_S_FILEONLY='cp -p'
837 if (echo >conf$$.file) 2>/dev/null; then
838 if ln -s conf$$.file conf$$ 2>/dev/null; then
839 LN_S_FILEONLY='ln -s'
840 elif ln conf$$.file conf$$ 2>/dev/null; then
845 rm -f conf$$ conf$$.file
847 if test "$LN_S_FILEONLY" = "ln -s"; then
850 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
853 AC_SUBST(LN_S_FILEONLY)
856 AC_PATH_PROG(INSTALL_INFO, install-info, :,
857 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
858 dnl Don't use GZIP, which is used by gzip for additional parameters.
859 AC_PATH_PROG(GZIP_PROG, gzip)
861 if test $opsys = gnu-linux; then
862 AC_PATH_PROG(PAXCTL, paxctl,,
863 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
864 if test "X$PAXCTL" != X; then
865 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
866 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
867 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
868 else AC_MSG_RESULT(no); PAXCTL=""; fi])
872 ## Need makeinfo >= 4.7 (?) to build the manuals.
873 AC_PATH_PROG(MAKEINFO, makeinfo, no)
874 dnl By this stage, configure has already checked for egrep and set EGREP,
875 dnl or exited with an error if no egrep was found.
876 if test "$MAKEINFO" != "no"; then
878 $MAKEINFO --version 2> /dev/null |
879 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
885 ## Makeinfo is unusual. For a released Emacs, the manuals are
886 ## pre-built, and not deleted by the normal clean rules. makeinfo is
887 ## therefore in the category of "special tools" not normally required, which
888 ## configure does not have to check for (eg autoconf itself).
889 ## In a Bazaar checkout on the other hand, the manuals are not included.
890 ## So makeinfo is a requirement to build from Bazaar, and configure
891 ## should test for it as it does for any other build requirement.
892 ## We use the presence of $srcdir/info/emacs to distinguish a release,
893 ## with pre-built manuals, from a Bazaar checkout.
896 if test "$MAKEINFO" = "no"; then
898 if test "x${with_makeinfo}" = "xno"; then
900 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
901 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
902 source tree does not seem to have pre-built manuals in the `info' directory.
903 Either install a suitable version of makeinfo, or re-run configure
904 with the `--without-makeinfo' option to build without the manuals.] )
907 AC_SUBST(HAVE_MAKEINFO)
909 dnl Just so that there is only a single place we need to edit.
915 dnl Add our options to ac_link now, after it is set up.
917 if test x$GCC = xyes; then
918 test "x$GCC_LINK_TEST_OPTIONS" != x && \
919 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
921 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
922 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
925 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
926 dnl If we can link with the flag, it shouldn't do any harm anyhow.
927 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
928 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
929 dnl if not built to support GNU ld.
931 late_LDFLAGS=$LDFLAGS
932 if test x$GCC = xyes; then
933 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
935 LDFLAGS="$LDFLAGS -znocombreloc"
938 AC_MSG_CHECKING([for -znocombreloc])
939 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
940 [AC_MSG_RESULT(yes)],
941 LDFLAGS=$late_LDFLAGS
945 dnl The function dump-emacs will not be defined and temacs will do
946 dnl (load "loadup") automatically unless told otherwise.
947 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
949 your-opsys-here) CANNOT_DUMP=yes ;;
952 test "$CANNOT_DUMP" = "yes" && \
953 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
955 AC_SUBST(CANNOT_DUMP)
960 # MSDOS uses unexcoff.o
961 # MSWindows uses unexw32.o
969 UNEXEC_OBJ=unexmacosx.o
972 UNEXEC_OBJ=unexhp9k800.o
975 # Use the Solaris dldump() function, called from unexsol.c, to dump
976 # emacs, instead of the generic ELF dump code found in unexelf.c.
977 # The resulting binary has a complete symbol table, and is better
978 # for debugging and other observability tools (debuggers, pstack, etc).
980 # If you encounter a problem using dldump(), please consider sending
981 # a message to the OpenSolaris tools-linking mailing list:
982 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
984 # It is likely that dldump() works with older Solaris too, but this has
985 # not been tested, so for now this change is for Solaris 10 or newer.
993 ## Let `ld' find image libs and similar things in /usr/local/lib.
994 ## The system compiler, GCC, has apparently been modified to not
995 ## look there, contrary to what a stock GCC would do.
996 ### It's not our place to do this. See bug#10313#17.
997 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1002 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1003 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1007 ### It's not our place to do this. See bug#10313#17.
1008 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1013 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
1014 ## otherwise Emacs dumps core on elf systems.
1015 LD_SWITCH_SYSTEM="-Z"
1018 AC_SUBST(LD_SWITCH_SYSTEM)
1020 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1022 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1023 ## which has not been defined yet. When this was handled with cpp,
1024 ## it was expanded to null when configure sourced the s/*.h file.
1025 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1026 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1027 ## (or somesuch), but because it is supposed to go at the _front_
1028 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1029 ## Compare with the gnu-linux case below, which added to the end
1030 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1031 ## LD_SWITCH_SYSTEM_TEMACS.
1034 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1041 AC_CHECK_DECL([__ELF__])
1042 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1043 ## With ELF, make sure that all common symbols get allocated to in the
1044 ## data section. Otherwise, the dump of temacs may miss variables in
1045 ## the shared library that have been initialized. For example, with
1046 ## GNU libc, __malloc_initialized would normally be resolved to the
1047 ## shared library's .bss section, which is fatal.
1048 if test "x$GCC" = "xyes"; then
1049 C_SWITCH_MACHINE="-fno-common"
1051 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1054 UNEXEC_OBJ=unexalpha.o
1058 AC_SUBST(C_SWITCH_MACHINE)
1060 AC_SUBST(UNEXEC_OBJ)
1063 ## Some programs in src produce warnings saying certain subprograms
1064 ## are too complex and need a MAXMEM value greater than 2000 for
1065 ## additional optimization. --nils@exp-math.uni-essen.de
1066 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1067 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1068 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1069 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1070 AC_SUBST(C_SWITCH_SYSTEM)
1075 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1076 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1078 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1080 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1082 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1084 ## Motif needs -lgen.
1085 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1087 AC_SUBST(LIBS_SYSTEM)
1090 ### Make sure subsequent tests use flags consistent with the build flags.
1092 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1093 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1095 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1098 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1099 AC_DEFUN([AC_TYPE_SIZE_T])
1100 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1101 AC_DEFUN([AC_TYPE_UID_T])
1105 dnl Current possibilities handled by sed (aix4-2 -> aix,
1106 dnl gnu-linux -> gnu/linux, etc.):
1107 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1108 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1109 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1116 ## Adding -lm confuses the dynamic linker, so omit it.
1119 freebsd | dragonfly )
1120 SYSTEM_TYPE=berkeley-unix
1122 gnu-linux | gnu-kfreebsd )
1124 hpux10-20 | hpux11 )
1126 dnl NB this may be adjusted below.
1128 SYSTEM_TYPE=berkeley-unix
1132 SYSTEM_TYPE=usg-unix-v
1138 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1139 [The type of system you are compiling for; sets `system-type'.])
1142 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1143 pre_PKG_CONFIG_LIBS=$LIBS
1145 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1147 dnl This function definition taken from Gnome 2.0
1148 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1149 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1150 dnl also defines GSTUFF_PKG_ERRORS on error
1151 AC_DEFUN([PKG_CHECK_MODULES], [
1154 if test "$PKG_CONFIG" = "no" ; then
1155 ifelse([$4], , [AC_MSG_ERROR([
1156 *** 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])
1158 PKG_CONFIG_MIN_VERSION=0.9.0
1159 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1160 AC_MSG_CHECKING(for $2)
1162 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1163 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1164 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1171 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1172 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1173 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1179 ## If we have a custom action on failure, don't print errors, but
1180 ## do set a variable so people can do so. Do it in a subshell
1181 ## to capture any diagnostics in invoking pkg-config.
1182 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1183 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1189 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1190 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1194 if test $succeeded = yes; then
1195 ifelse([$3], , :, [$3])
1197 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.])], [$4])
1202 if test "${with_sound}" != "no"; then
1203 # Sound support for GNU/Linux and the free BSDs.
1204 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1205 have_sound_header=yes)
1206 # Emulation library used on NetBSD.
1207 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1211 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1212 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1213 if test $HAVE_ALSA = yes; then
1214 SAVE_CFLAGS="$CFLAGS"
1216 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1217 LIBS="$ALSA_LIBS $LIBS"
1218 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1219 emacs_alsa_normal=yes,
1220 emacs_alsa_normal=no)
1221 if test "$emacs_alsa_normal" != yes; then
1222 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1223 [[snd_lib_error_set_handler (0);]])],
1224 emacs_alsa_subdir=yes,
1225 emacs_alsa_subdir=no)
1226 if test "$emacs_alsa_subdir" != yes; then
1227 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1229 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1232 CFLAGS="$SAVE_CFLAGS"
1234 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1235 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1236 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1239 dnl Define HAVE_SOUND if we have sound support. We know it works and
1240 dnl compiles only on the specified platforms. For others, it
1241 dnl probably doesn't make sense to try.
1242 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1244 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1245 gnu-linux|freebsd|netbsd)
1246 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1251 AC_SUBST(CFLAGS_SOUND)
1254 dnl checks for header files
1255 AC_CHECK_HEADERS_ONCE(
1256 linux/version.h sys/systeminfo.h
1259 sys/utsname.h pwd.h utmp.h util.h)
1261 AC_MSG_CHECKING(if personality LINUX32 can be set)
1262 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1263 emacs_cv_personality_linux32=yes,
1264 emacs_cv_personality_linux32=no)
1265 AC_MSG_RESULT($emacs_cv_personality_linux32)
1267 if test $emacs_cv_personality_linux32 = yes; then
1268 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1269 [Define to 1 if personality LINUX32 can be set.])
1272 dnl On Solaris 8 there's a compilation warning for term.h because
1273 dnl it doesn't define `bool'.
1274 AC_CHECK_HEADERS(term.h, , , -)
1276 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1278 if test $ac_cv_have_decl_sys_siglist != yes; then
1279 # For Tru64, at least:
1280 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1282 if test $ac_cv_have_decl___sys_siglist = yes; then
1283 AC_DEFINE(sys_siglist, __sys_siglist,
1284 [Define to any substitute for sys_siglist.])
1289 dnl Check for speed_t typedef.
1290 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1291 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1292 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1293 if test $emacs_cv_speed_t = yes; then
1294 AC_DEFINE(HAVE_SPEED_T, 1,
1295 [Define to 1 if `speed_t' is declared by <termios.h>.])
1298 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1299 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1300 #if HAVE_SYS_SOCKET_H
1301 #include <sys/socket.h>
1303 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1304 #if HAVE_SYS_SOCKET_H
1305 #include <sys/socket.h>
1307 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1308 #if HAVE_SYS_SOCKET_H
1309 #include <sys/socket.h>
1312 dnl checks for structure members
1313 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1314 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1315 struct ifreq.ifr_addr,
1316 struct ifreq.ifr_addr.sa_len], , ,
1317 [AC_INCLUDES_DEFAULT
1318 #if HAVE_SYS_SOCKET_H
1319 #include <sys/socket.h>
1325 dnl Check for endianness.
1326 dnl AC_C_BIGENDIAN is done by gnulib.
1328 dnl check for Make feature
1329 dnl AC_PROG_MAKE_SET is done by Automake.
1334 dnl check for GNU Make if we have GCC and autodepend is on.
1335 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1336 AC_MSG_CHECKING([whether we are using GNU Make])
1338 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1339 if test "x$testval" != x; then
1342 ac_enable_autodepend=no
1344 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1345 if test $HAVE_GNU_MAKE = yes; then
1346 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1347 SAVE_CFLAGS="$CFLAGS"
1348 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1349 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1350 CFLAGS="$SAVE_CFLAGS"
1351 test -f deps.d || ac_enable_autodepend=no
1353 AC_MSG_RESULT([$ac_enable_autodepend])
1355 if test $ac_enable_autodepend = yes; then
1356 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1357 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1358 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1359 deps_frag=autodeps.mk
1362 deps_frag=$srcdir/src/$deps_frag
1365 AC_SUBST_FILE(deps_frag)
1368 lisp_frag=$srcdir/src/lisp.mk
1369 AC_SUBST_FILE(lisp_frag)
1372 dnl checks for operating system services
1373 AC_SYS_LONG_FILE_NAMES
1375 #### Choose a window system.
1377 ## We leave window_system equal to none if
1378 ## we end up building without one. Any new window system should
1379 ## set window_system to an appropriate value and add objects to
1380 ## window-system-specific substs.
1384 if test "$no_x" != yes; then
1388 LD_SWITCH_X_SITE_RPATH=
1389 if test "${x_libraries}" != NONE; then
1390 if test -n "${x_libraries}"; then
1391 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1392 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1394 x_default_search_path=""
1395 x_search_path=${x_libraries}
1396 if test -z "${x_search_path}"; then
1397 x_search_path=/usr/lib
1399 for x_library in `echo ${x_search_path}: | \
1400 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1402 ${x_library}/X11/%L/%T/%N%C%S:\
1403 ${x_library}/X11/%l/%T/%N%C%S:\
1404 ${x_library}/X11/%T/%N%C%S:\
1405 ${x_library}/X11/%L/%T/%N%S:\
1406 ${x_library}/X11/%l/%T/%N%S:\
1407 ${x_library}/X11/%T/%N%S"
1408 if test x"${x_default_search_path}" = x; then
1409 x_default_search_path=${x_search_path}
1411 x_default_search_path="${x_search_path}:${x_default_search_path}"
1415 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1417 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1418 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1421 if test x"${x_includes}" = x; then
1422 bitmapdir=/usr/include/X11/bitmaps
1424 # accumulate include directories that have X11 bitmap subdirectories
1426 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1427 if test -d "${bmd}/X11/bitmaps"; then
1428 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1430 if test -d "${bmd}/bitmaps"; then
1431 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1434 if test ${bmd_acc} != "dummyval"; then
1435 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1442 tmp_CPPFLAGS="$CPPFLAGS"
1443 tmp_CFLAGS="$CFLAGS"
1444 CPPFLAGS="$CPPFLAGS -x objective-c"
1445 CFLAGS="$CFLAGS -x objective-c"
1448 if test "${with_ns}" != no; then
1449 if test "${opsys}" = darwin; then
1451 ns_appdir=`pwd`/nextstep/Emacs.app
1452 ns_appbindir=${ns_appdir}/Contents/MacOS
1453 ns_appresdir=${ns_appdir}/Contents/Resources
1454 ns_appsrc=Cocoa/Emacs.base
1455 elif test -f $GNUSTEP_CONFIG_FILE; then
1457 ns_appdir=`pwd`/nextstep/Emacs.app
1458 ns_appbindir=${ns_appdir}
1459 ns_appresdir=${ns_appdir}/Resources
1460 ns_appsrc=GNUstep/Emacs.base
1461 dnl FIXME sourcing this several times in subshells seems inefficient.
1462 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1463 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1464 dnl I seemed to need these as well with GNUstep-startup 0.25.
1465 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1466 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1467 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1468 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1469 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1470 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1471 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1472 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1473 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1474 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1475 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1476 dnl If they had chosen to either define it or not, we could have
1477 dnl just used AC_CHECK_DECL here.
1478 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1479 emacs_cv_objc_exceptions,
1480 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1481 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1485 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1486 if test $emacs_cv_objc_exceptions = yes; then
1487 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1488 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1489 [Define if GNUstep uses ObjC exceptions.])
1490 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1494 dnl This is only used while we test the NS headers, it gets reset below.
1495 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1497 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1498 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1499 files are missing or cannot be compiled.])])
1501 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1503 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1504 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1507 #error "OSX 10.4 or newer required"
1511 ns_osx_have_104=yes,
1513 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1515 ns_have_nsinteger=yes,
1516 ns_have_nsinteger=no)
1517 if test $ns_osx_have_104 = no; then
1518 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1520 if test $ns_have_nsinteger = yes; then
1521 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1525 AC_SUBST(LIBS_GNUSTEP)
1527 INSTALL_ARCH_INDEP_EXTRA=install-etc
1528 ns_self_contained=no
1531 if test "${HAVE_NS}" = yes; then
1532 if test "$with_toolkit_scroll_bars" = "no"; then
1533 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1536 window_system=nextstep
1537 # set up packaging dirs
1538 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1539 ns_self_contained=yes
1540 prefix=${ns_appresdir}
1541 exec_prefix=${ns_appbindir}
1542 dnl This one isn't really used, only archlibdir is.
1543 libexecdir="\${ns_appbindir}/libexec"
1544 archlibdir="\${ns_appbindir}/libexec"
1545 docdir="\${ns_appresdir}/etc"
1546 etcdir="\${ns_appresdir}/etc"
1547 dnl FIXME maybe set datarootdir instead.
1548 dnl That would also get applications, icons, man.
1549 infodir="\${ns_appresdir}/info"
1550 mandir="\${ns_appresdir}/man"
1551 lispdir="\${ns_appresdir}/lisp"
1552 leimdir="\${ns_appresdir}/leim"
1553 INSTALL_ARCH_INDEP_EXTRA=
1555 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1557 CFLAGS="$tmp_CFLAGS"
1558 CPPFLAGS="$tmp_CPPFLAGS"
1559 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1560 AC_SUBST(ns_self_contained)
1562 AC_SUBST(NS_OBJC_OBJ)
1569 if test "${with_w32}" != no; then
1570 if test "${opsys}" != "cygwin"; then
1571 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1573 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1574 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1575 cannot be found.])])
1576 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1577 AC_CHECK_TOOL(WINDRES, [windres],
1578 [AC_MSG_ERROR([No resource compiler found.])])
1579 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1580 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1581 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1582 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1584 # Tell the linker that emacs.res is an object (which we compile from
1585 # the rc file), not a linker script.
1586 W32_RES_LINK="-Wl,emacs.res"
1591 AC_SUBST(W32_RES_LINK)
1593 if test "${HAVE_W32}" = "yes"; then
1598 ## $window_system is now set to the window system we will
1606 case "${window_system}" in
1611 case "${with_x_toolkit}" in
1612 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1613 motif ) USE_X_TOOLKIT=MOTIF ;;
1615 term_header=gtkutil.h
1616 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1617 dnl USE_X_TOOLKIT is set.
1618 USE_X_TOOLKIT=none ;;
1619 gtk2 ) with_gtk2=yes
1620 term_header=gtkutil.h
1621 USE_X_TOOLKIT=none ;;
1622 gtk3 ) with_gtk3=yes
1623 term_header=gtkutil.h
1624 USE_X_TOOLKIT=none ;;
1625 no ) USE_X_TOOLKIT=none ;;
1626 dnl If user did not say whether to use a toolkit, make this decision later:
1627 dnl use the toolkit if we have gtk, or X11R5 or newer.
1628 * ) USE_X_TOOLKIT=maybe ;;
1632 term_header=nsterm.h
1635 term_header=w32term.h
1639 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1640 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1641 if test "$HAVE_XSERVER" = true ||
1642 test -n "$DISPLAY" ||
1643 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1644 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1645 were found. You should install the relevant development files for X
1646 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1647 sure you have development files for image handling, i.e.
1648 tiff, gif, jpeg, png and xpm.
1649 If you are sure you want Emacs compiled without X window support, pass
1655 ### If we're using X11, we should use the X menu package.
1658 yes ) HAVE_MENUS=yes ;;
1661 # Does the opsystem file prohibit the use of the GNU malloc?
1662 # Assume not, until told otherwise.
1666 [whether malloc is Doug Lea style],
1667 [emacs_cv_var_doug_lea_malloc],
1670 [[#include <malloc.h>
1671 static void hook (void) {}]],
1672 [[malloc_set_state (malloc_get_state ());
1673 __after_morecore_hook = hook;
1674 __malloc_initialize_hook = hook;]])],
1675 [emacs_cv_var_doug_lea_malloc=yes],
1676 [emacs_cv_var_doug_lea_malloc=no])])
1677 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1680 dnl See comments in aix4-2.h about maybe using system malloc there.
1683 ## darwin ld insists on the use of malloc routines in the System framework.
1684 darwin|sol2-10) system_malloc=yes ;;
1687 if test "${system_malloc}" = "yes"; then
1688 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1691 (The GNU allocators don't work with this system configuration.)"
1695 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1696 VMLIMIT_OBJ=vm-limit.o
1698 AC_CHECK_HEADERS([sys/vlimit.h])
1699 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1702 [[extern char data_start[]; char ch;]],
1703 [[return data_start < &ch;]])],
1704 [emacs_cv_data_start=yes],
1705 [emacs_cv_data_start=no])])
1706 if test $emacs_cv_data_start = yes; then
1707 AC_DEFINE([HAVE_DATA_START], 1,
1708 [Define to 1 if data_start is the address of the start
1709 of the main data segment.])
1712 AC_SUBST(GMALLOC_OBJ)
1713 AC_SUBST(VMLIMIT_OBJ)
1715 if test "$doug_lea_malloc" = "yes" ; then
1716 if test "$GNU_MALLOC" = yes ; then
1718 (Using Doug Lea's new malloc from the GNU C Library.)"
1720 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1721 [Define to 1 if you are using the GNU C Library.])
1723 ## Use mmap directly for allocating larger buffers.
1724 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1725 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1726 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1728 gnu*) REL_ALLOC=no ;;
1732 if test x"${REL_ALLOC}" = x; then
1733 REL_ALLOC=${GNU_MALLOC}
1736 use_mmap_for_buffers=no
1738 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1742 if test $use_mmap_for_buffers = yes; then
1743 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1747 LIBS="$LIBS_SYSTEM $LIBS"
1749 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1750 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1751 AC_CHECK_LIB(dnet, dnet_ntoa)
1752 dnl This causes -lresolv to get used in subsequent tests,
1753 dnl which causes failures on some systems such as HPUX 9.
1754 dnl AC_CHECK_LIB(resolv, gethostbyname)
1756 dnl FIXME replace main with a function we actually want from this library.
1757 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1759 dnl Check if pthreads is available.
1761 AC_CHECK_HEADERS_ONCE(pthread.h)
1762 if test "$ac_cv_header_pthread_h"; then
1763 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1764 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1765 dnl testing for pthread_self if Emacs uses gmalloc.c.
1766 if test "$GMALLOC_OBJ" = gmalloc.o; then
1767 emacs_pthread_function=pthread_atfork
1769 emacs_pthread_function=pthread_self
1771 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1773 if test "$HAVE_PTHREAD" = yes; then
1774 case "${canonical}" in
1776 *) LIB_PTHREAD="-lpthread"
1777 LIBS="$LIB_PTHREAD $LIBS" ;;
1779 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1781 AC_SUBST([LIB_PTHREAD])
1783 AC_CHECK_LIB(pthreads, cma_open)
1785 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1786 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1787 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1788 ## added to LIBS in configure would never contain the pthreads part,
1789 ## but the value used in Makefiles might. FIXME?
1791 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1792 ## be harmless on older versions of X where it happens to exist.
1793 test "$opsys" = "aix4-2" && \
1794 test $ac_cv_lib_pthreads_cma_open = yes && \
1795 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1797 dnl Check for need for bigtoc support on IBM AIX
1801 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1803 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1804 *) gdb_cv_bigtoc=-bbigtoc ;;
1807 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1808 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1813 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1814 # used for the tests that follow. We set them back to REAL_CFLAGS and
1815 # REAL_CPPFLAGS later on.
1817 REAL_CFLAGS="$CFLAGS"
1818 REAL_CPPFLAGS="$CPPFLAGS"
1820 if test "${HAVE_X11}" = "yes"; then
1821 DEFS="$C_SWITCH_X_SITE $DEFS"
1822 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1824 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1825 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1827 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1828 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1829 # but it's more convenient here to set LD_RUN_PATH since this
1830 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1831 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1832 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1836 if test "${opsys}" = "gnu-linux"; then
1837 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1838 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1839 [[XOpenDisplay ("foo");]])],
1840 [xgnu_linux_first_failure=no],
1841 [xgnu_linux_first_failure=yes])
1842 if test "${xgnu_linux_first_failure}" = "yes"; then
1843 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1844 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1845 OLD_CPPFLAGS="$CPPFLAGS"
1847 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1848 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1849 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1850 LIBS="$LIBS -b i486-linuxaout"
1851 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1852 [[XOpenDisplay ("foo");]])],
1853 [xgnu_linux_second_failure=no],
1854 [xgnu_linux_second_failure=yes])
1855 if test "${xgnu_linux_second_failure}" = "yes"; then
1856 # If we get the same failure with -b, there is no use adding -b.
1857 # So take it out. This plays safe.
1858 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1859 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1860 CPPFLAGS="$OLD_CPPFLAGS"
1871 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1872 # header files included from there.
1873 AC_MSG_CHECKING(for Xkb)
1874 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1875 #include <X11/XKBlib.h>]],
1876 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1877 emacs_xkb=yes, emacs_xkb=no)
1878 AC_MSG_RESULT($emacs_xkb)
1879 if test $emacs_xkb = yes; then
1880 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
1883 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1884 XScreenNumberOfScreen)
1887 if test "${window_system}" = "x11"; then
1888 AC_MSG_CHECKING(X11 version 6)
1889 AC_CACHE_VAL(emacs_cv_x11_version_6,
1890 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1891 [[#if XlibSpecificationRelease < 6
1894 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1895 if test $emacs_cv_x11_version_6 = yes; then
1896 AC_MSG_RESULT(6 or newer)
1897 AC_DEFINE(HAVE_X11R6, 1,
1898 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1899 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1900 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1904 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1905 [Define if you have usable X11R6-style XIM support.])
1909 AC_MSG_RESULT(before 6)
1914 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1916 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1917 if test "${with_rsvg}" != "no"; then
1918 RSVG_REQUIRED=2.11.0
1919 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1921 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1922 AC_SUBST(RSVG_CFLAGS)
1925 if test $HAVE_RSVG = yes; then
1926 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1927 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1928 LIBS="$RSVG_LIBS $LIBS"
1934 if test "${HAVE_X11}" = "yes"; then
1935 if test "${with_imagemagick}" != "no"; then
1936 ## 6.2.8 is the earliest version known to work, but earlier versions
1937 ## might work - let us know if you find one.
1938 ## 6.0.7 does not work. See bug#7955.
1939 ## 6.8.2 makes Emacs crash; see Bug#13867.
1940 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
1941 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1942 AC_SUBST(IMAGEMAGICK_CFLAGS)
1943 AC_SUBST(IMAGEMAGICK_LIBS)
1945 if test $HAVE_IMAGEMAGICK = yes; then
1946 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1947 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1948 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1949 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1959 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1962 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1964 dnl Checks for libraries.
1965 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1966 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1967 AC_MSG_ERROR($GTK_PKG_ERRORS)
1969 if test "$pkg_check_gtk" = "yes"; then
1970 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
1971 GTK_OBJ=emacsgtkfixed.o
1972 term_header=gtkutil.h
1973 USE_GTK_TOOLKIT="GTK3"
1974 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
1975 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
1979 gtk3_pkg_errors="$GTK_PKG_ERRORS "
1983 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
1986 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1988 dnl Checks for libraries.
1989 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1990 if test "$pkg_check_gtk" = "no" &&
1991 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
1993 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
1995 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
1998 if test x"$pkg_check_gtk" = xyes; then
2000 AC_SUBST(GTK_CFLAGS)
2002 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2003 CFLAGS="$CFLAGS $GTK_CFLAGS"
2004 LIBS="$GTK_LIBS $LIBS"
2005 dnl Try to compile a simple GTK program.
2007 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2008 if test "${GTK_COMPILES}" != "yes"; then
2009 if test "$USE_X_TOOLKIT" != "maybe"; then
2010 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2014 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2015 GTK_OBJ="gtkutil.o $GTK_OBJ"
2017 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2020 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2021 closing open displays. This is no problem if you just use
2022 one display, but if you use more than one and close one of them
2032 if test "${HAVE_GTK}" = "yes"; then
2034 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2035 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2036 if test "$with_toolkit_scroll_bars" != no; then
2037 with_toolkit_scroll_bars=yes
2040 dnl Check if we have the old file selection dialog declared and
2041 dnl in the link library. In 2.x it may be in the library,
2042 dnl but not declared if deprecated featured has been selected out.
2043 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2044 HAVE_GTK_FILE_SELECTION=no
2045 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2046 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2047 #include <gtk/gtk.h>])
2048 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2049 AC_CHECK_FUNCS(gtk_file_selection_new)
2052 dnl Same as above for gtk_handle_box.
2053 HAVE_GTK_HANDLE_BOX=no
2054 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2055 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2056 #include <gtk/gtk.h>])
2057 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2058 AC_CHECK_FUNCS(gtk_handle_box_new)
2061 dnl Same as above for gtk_tearoff_menu_item.
2062 HAVE_GTK_TEAROFF_MENU_ITEM=no
2063 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2064 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2065 #include <gtk/gtk.h>])
2066 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2067 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2070 dnl Check for functions introduced in 2.14 and later.
2071 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2072 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2073 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2074 gtk_orientable_set_orientation \
2075 gtk_window_set_has_resize_grip)
2077 term_header=gtkutil.h
2080 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2081 dnl other platforms.
2084 if test "${with_dbus}" = "yes"; then
2085 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2086 if test "$HAVE_DBUS" = yes; then
2087 LIBS="$LIBS $DBUS_LIBS"
2088 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2089 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2090 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2092 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2093 dbus_type_is_valid \
2094 dbus_validate_bus_name \
2095 dbus_validate_path \
2096 dbus_validate_interface \
2097 dbus_validate_member)
2103 dnl GSettings has been tested under GNU/Linux only.
2105 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2106 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2107 if test "$HAVE_GSETTINGS" = "yes"; then
2108 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2109 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2110 SETTINGS_LIBS="$GSETTINGS_LIBS"
2114 dnl GConf has been tested under GNU/Linux only.
2115 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2117 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2118 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2119 if test "$HAVE_GCONF" = yes; then
2120 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2121 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2122 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2123 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2127 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2128 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2129 if test "$HAVE_GOBJECT" = "yes"; then
2130 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2131 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2133 SAVE_CFLAGS="$CFLAGS"
2135 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2136 LIBS="$SETTINGS_LIBS $LIBS"
2137 AC_CHECK_FUNCS([g_type_init])
2138 CFLAGS="$SAVE_CFLAGS"
2141 AC_SUBST(SETTINGS_CFLAGS)
2142 AC_SUBST(SETTINGS_LIBS)
2145 dnl SELinux is available for GNU/Linux only.
2148 if test "${with_selinux}" = "yes"; then
2149 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2150 if test "$HAVE_LIBSELINUX" = yes; then
2151 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2152 LIBSELINUX_LIBS=-lselinux
2155 AC_SUBST(LIBSELINUX_LIBS)
2158 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2159 if test "${with_gnutls}" = "yes" ; then
2160 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2161 if test "${HAVE_GNUTLS}" = "yes"; then
2162 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2165 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2166 LIBS="$LIBGNUTLS_LIBS $LIBS"
2167 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2169 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2170 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2174 AC_SUBST(LIBGNUTLS_LIBS)
2175 AC_SUBST(LIBGNUTLS_CFLAGS)
2177 dnl inotify is only available on GNU/Linux.
2178 if test "${with_inotify}" = "yes"; then
2179 AC_CHECK_HEADERS(sys/inotify.h)
2180 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2181 AC_CHECK_FUNC(inotify_init1)
2184 if test "$ac_cv_func_inotify_init1" = yes; then
2185 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2188 dnl POSIX ACL support: provided by libacl on GNU/Linux, by libc on FreeBSD.
2191 if test "${with_acl}" = "yes"; then
2192 AC_CHECK_LIB([acl], [acl_set_file], HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2193 if test "$HAVE_POSIX_ACL" = yes; then
2194 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2197 AC_CHECK_FUNC(acl_set_file, HAVE_POSIX_ACL=yes, HAVE_POSIX_ACL=no)
2198 if test "$HAVE_POSIX_ACL" = yes; then
2199 AC_DEFINE(HAVE_POSIX_ACL, 1, [Define to 1 if using POSIX ACL support.])
2203 AC_SUBST(LIBACL_LIBS)
2205 dnl Do not put whitespace before the #include statements below.
2206 dnl Older compilers (eg sunos4 cc) choke on it.
2209 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2210 if test "$with_xaw3d" != no; then
2211 AC_CACHE_VAL(emacs_cv_xaw3d,
2212 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2213 #include <X11/Intrinsic.h>
2214 #include <X11/Xaw3d/Simple.h>]],
2216 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2217 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2218 emacs_cv_xaw3d=no)])
2222 if test $emacs_cv_xaw3d = yes; then
2223 AC_MSG_CHECKING(for xaw3d)
2224 AC_MSG_RESULT([yes; using Lucid toolkit])
2228 AC_DEFINE(HAVE_XAW3D, 1,
2229 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2231 AC_MSG_CHECKING(for xaw3d)
2233 AC_MSG_CHECKING(for libXaw)
2234 AC_CACHE_VAL(emacs_cv_xaw,
2235 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2236 #include <X11/Intrinsic.h>
2237 #include <X11/Xaw/Simple.h>]],
2241 if test $emacs_cv_xaw = yes; then
2242 AC_MSG_RESULT([yes; using Lucid toolkit])
2245 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2246 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2248 AC_MSG_ERROR([No X toolkit could be found.
2249 If you are sure you want Emacs compiled without an X toolkit, pass
2251 to configure. Otherwise, install the development libraries for the toolkit
2252 that you want to use (e.g. Gtk+) and re-run configure.])
2257 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2260 if test "${USE_X_TOOLKIT}" != "none"; then
2261 AC_MSG_CHECKING(X11 toolkit version)
2262 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2263 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2264 [[#if XtSpecificationRelease < 6
2267 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2268 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2269 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2270 AC_MSG_RESULT(6 or newer)
2271 AC_DEFINE(HAVE_X11XTR6, 1,
2272 [Define to 1 if you have the X11R6 or newer version of Xt.])
2273 LIBXTR6="-lSM -lICE"
2275 ## Use libw.a along with X11R6 Xt.
2276 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2279 AC_MSG_RESULT(before 6)
2282 dnl If using toolkit, check whether libXmu.a exists.
2283 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2285 if test x$HAVE_X11XTR6 = xyes; then
2286 LIBS="-lXt -lSM -lICE $LIBS"
2290 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2291 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2292 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2296 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2297 dnl Why not just test for libxmu in the normal way?
2300 ## These systems don't supply Xmu.
2302 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2307 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2308 if test "${HAVE_X11}" = "yes"; then
2309 if test "${USE_X_TOOLKIT}" != "none"; then
2310 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2315 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2316 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2317 if test -d /usr/include/openmotif; then
2318 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2319 emacs_cv_openmotif=yes
2320 case "$canonical" in
2321 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2322 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2325 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2328 emacs_cv_openmotif=no
2330 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2331 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2332 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2335 Motif version prior to 2.1.
2337 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2338 if test $emacs_cv_motif_version_2_1 = yes; then
2339 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2340 if test x$emacs_cv_openmotif = xyes; then
2341 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2344 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2345 # We put this in CFLAGS temporarily to precede other -I options
2346 # that might be in CFLAGS temporarily.
2347 # We put this in CPPFLAGS where it precedes the other -I options.
2348 OLD_CPPFLAGS=$CPPFLAGS
2350 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2351 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2352 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2354 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2355 if test $emacs_cv_lesstif = yes; then
2356 # Make sure this -I option remains in CPPFLAGS after it is set
2357 # back to REAL_CPPFLAGS.
2358 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2359 # have those other -I options anyway. Ultimately, having this
2360 # directory ultimately in CPPFLAGS will be enough.
2361 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2362 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2365 CPPFLAGS=$OLD_CPPFLAGS
2368 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2369 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2372 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2373 dnl using Motif or Xaw3d is available, and unless
2374 dnl --with-toolkit-scroll-bars=no was specified.
2376 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2377 [Define to 1 if we should use toolkit scroll bars.])dnl
2378 USE_TOOLKIT_SCROLL_BARS=no
2379 if test "${with_toolkit_scroll_bars}" != "no"; then
2380 if test "${USE_X_TOOLKIT}" != "none"; then
2381 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2382 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2384 USE_TOOLKIT_SCROLL_BARS=yes
2385 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2386 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2387 USE_TOOLKIT_SCROLL_BARS=yes
2389 elif test "${HAVE_GTK}" = "yes"; then
2390 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2391 USE_TOOLKIT_SCROLL_BARS=yes
2392 elif test "${HAVE_NS}" = "yes"; then
2393 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2394 USE_TOOLKIT_SCROLL_BARS=yes
2395 elif test "${HAVE_W32}" = "yes"; then
2396 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2397 USE_TOOLKIT_SCROLL_BARS=yes
2401 dnl See if XIM is available.
2402 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2403 #include <X11/Xlib.h>
2404 #include <X11/Xresource.h>]],
2405 [[XIMProc callback;]])],
2407 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2410 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2412 if test "${with_xim}" != "no"; then
2413 AC_DEFINE(USE_XIM, 1,
2414 [Define to 1 if we should use XIM, if it is available.])
2418 if test "${HAVE_XIM}" != "no"; then
2420 if test "$GCC" = yes; then
2421 CFLAGS="$CFLAGS --pedantic-errors"
2423 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2424 #include <X11/Xlib.h>
2425 #include <X11/Xresource.h>]],
2431 XPointer *client_data;
2433 /* If we're not using GCC, it's probably not XFree86, and this is
2434 probably right, but we can't use something like --pedantic-errors. */
2435 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2436 char*, XIMProc, XPointer*);
2438 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2440 [emacs_cv_arg6_star=yes])
2441 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2442 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2443 either XPointer or XPointer*.])dnl
2444 if test "$emacs_cv_arg6_star" = yes; then
2445 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2447 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2452 ### Start of font-backend (under any platform) section.
2453 # (nothing here yet -- this is a placeholder)
2454 ### End of font-backend (under any platform) section.
2456 ### Start of font-backend (under X11) section.
2457 if test "${HAVE_X11}" = "yes"; then
2458 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2460 ## Use -lXft if available, unless `--with-xft=no'.
2462 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2465 if test "x${with_xft}" != "xno"; then
2467 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2468 ## Because xftfont.c uses XRenderQueryExtension, we also
2469 ## need to link to -lXrender.
2471 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2472 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2473 OLD_CPPFLAGS="$CPPFLAGS"
2474 OLD_CFLAGS="$CFLAGS"
2476 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2477 CFLAGS="$CFLAGS $XFT_CFLAGS"
2478 XFT_LIBS="-lXrender $XFT_LIBS"
2479 LIBS="$XFT_LIBS $LIBS"
2480 AC_CHECK_HEADER(X11/Xft/Xft.h,
2481 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2483 if test "${HAVE_XFT}" = "yes"; then
2484 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2486 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2488 CPPFLAGS="$OLD_CPPFLAGS"
2489 CFLAGS="$OLD_CFLAGS"
2491 fi # "${HAVE_XFT}" = "yes"
2492 fi # "$HAVE_XFT" != no
2493 fi # "x${with_xft}" != "xno"
2495 ## We used to allow building with FreeType and without Xft.
2496 ## However, the ftx font backend driver is not in good shape.
2497 if test "$HAVE_XFT" != "yes"; then
2498 dnl For the "Does Emacs use" message at the end.
2502 dnl Strict linkers fail with
2503 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2504 dnl if -lfreetype is not specified.
2505 dnl The following is needed to set FREETYPE_LIBS.
2506 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2509 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2513 if test "${HAVE_FREETYPE}" = "yes"; then
2514 AC_DEFINE(HAVE_FREETYPE, 1,
2515 [Define to 1 if using the freetype and fontconfig libraries.])
2516 if test "${with_libotf}" != "no"; then
2517 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2519 if test "$HAVE_LIBOTF" = "yes"; then
2520 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2521 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2522 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2523 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2524 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2525 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2526 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2530 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2531 dnl Does the new font backend require it, or can it work without it?
2535 if test "${HAVE_LIBOTF}" = yes; then
2536 if test "${with_m17n_flt}" != "no"; then
2537 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2538 if test "$HAVE_M17N_FLT" = "yes"; then
2539 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2550 ### End of font-backend (under X11) section.
2552 AC_SUBST(FREETYPE_CFLAGS)
2553 AC_SUBST(FREETYPE_LIBS)
2554 AC_SUBST(FONTCONFIG_CFLAGS)
2555 AC_SUBST(FONTCONFIG_LIBS)
2556 AC_SUBST(LIBOTF_CFLAGS)
2557 AC_SUBST(LIBOTF_LIBS)
2558 AC_SUBST(M17N_FLT_CFLAGS)
2559 AC_SUBST(M17N_FLT_LIBS)
2561 ### Use -lXpm if available, unless `--with-xpm=no'.
2565 if test "${HAVE_W32}" = "yes"; then
2566 if test "${with_xpm}" != "no"; then
2567 SAVE_CPPFLAGS="$CPPFLAGS"
2568 SAVE_LDFLAGS="$LDFLAGS"
2569 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2570 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2571 AC_CHECK_HEADER(X11/xpm.h,
2572 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2573 if test "${HAVE_XPM}" = "yes"; then
2574 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2575 AC_EGREP_CPP(no_return_alloc_pixels,
2576 [#include "X11/xpm.h"
2577 #ifndef XpmReturnAllocPixels
2578 no_return_alloc_pixels
2580 ], HAVE_XPM=no, HAVE_XPM=yes)
2582 if test "${HAVE_XPM}" = "yes"; then
2583 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2587 CPPFLAGS="$SAVE_CPPFLAGS"
2588 LDFLAGS="$SAVE_LDFLAGS"
2593 if test "${HAVE_XPM}" = "yes"; then
2594 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2599 if test "${HAVE_X11}" = "yes"; then
2600 if test "${with_xpm}" != "no"; then
2601 AC_CHECK_HEADER(X11/xpm.h,
2602 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2603 if test "${HAVE_XPM}" = "yes"; then
2604 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2605 AC_EGREP_CPP(no_return_alloc_pixels,
2606 [#include "X11/xpm.h"
2607 #ifndef XpmReturnAllocPixels
2608 no_return_alloc_pixels
2610 ], HAVE_XPM=no, HAVE_XPM=yes)
2612 if test "${HAVE_XPM}" = "yes"; then
2620 if test "${HAVE_XPM}" = "yes"; then
2621 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2628 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2631 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2632 if test "${with_jpeg}" != "no"; then
2633 dnl Checking for jpeglib.h can lose because of a redefinition of
2635 AC_CHECK_HEADER(jerror.h,
2636 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2639 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2640 if test "${HAVE_JPEG}" = "yes"; then
2641 AC_DEFINE(HAVE_JPEG)
2642 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2643 [#include <jpeglib.h>
2644 version=JPEG_LIB_VERSION
2646 [AC_DEFINE(HAVE_JPEG)],
2647 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2650 if test "${HAVE_JPEG}" = "yes"; then
2656 ### Use -lpng if available, unless `--with-png=no'.
2659 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2660 if test "${with_png}" != "no"; then
2661 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2662 # in /usr/include/libpng.
2663 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2664 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2665 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2669 if test "${HAVE_PNG}" = "yes"; then
2670 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2671 LIBPNG="-lpng -lz -lm"
2673 AC_CHECK_DECL(png_longjmp,
2675 [AC_DEFINE(PNG_DEPSTRUCT, [],
2676 [Define to empty to suppress deprecation warnings when building
2677 with --enable-gcc-warnings and with libpng versions before 1.5,
2678 which lack png_longjmp.])],
2679 [[#ifdef HAVE_LIBPNG_PNG_H
2680 # include <libpng/png.h>
2689 ### Use -ltiff if available, unless `--with-tiff=no'.
2692 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2693 if test "${with_tiff}" != "no"; then
2694 AC_CHECK_HEADER(tiffio.h,
2696 # At least one tiff package requires the jpeg library.
2697 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2698 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2701 if test "${HAVE_TIFF}" = "yes"; then
2702 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2703 dnl FIXME -lz -lm, as per libpng?
2709 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2712 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2713 || test "${HAVE_W32}" = "yes"; then
2714 AC_CHECK_HEADER(gif_lib.h,
2715 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2716 # Earlier versions can crash Emacs.
2717 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2719 if test "$HAVE_GIF" = yes; then
2721 elif test "$HAVE_GIF" = maybe; then
2722 # If gif_lib.h but no libgif, try libungif.
2723 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2724 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2727 if test "${HAVE_GIF}" = "yes"; then
2728 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2733 dnl Check for required libraries.
2734 if test "${HAVE_X11}" = "yes"; then
2737 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2738 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2739 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2740 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2741 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2742 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2743 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2744 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2745 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2746 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2748 if test "X${MISSING}" != X; then
2749 AC_MSG_ERROR([The following required libraries were not found:
2751 Maybe some development libraries/packages are missing?
2752 If you don't want to link with them give
2754 as options to configure])
2758 ### Use -lgpm if available, unless `--with-gpm=no'.
2761 if test "${with_gpm}" != "no"; then
2762 AC_CHECK_HEADER(gpm.h,
2763 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2765 if test "${HAVE_GPM}" = "yes"; then
2766 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2772 dnl Check for malloc/malloc.h on darwin
2773 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2776 ### Use NeXTstep API to implement GUI.
2777 if test "${HAVE_NS}" = "yes"; then
2778 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2779 if test "${NS_IMPL_COCOA}" = "yes"; then
2780 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2782 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2783 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2784 # See also .m.o rule in Makefile.in */
2785 # FIXME: are all these flags really needed? Document here why. */
2786 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2787 ## Extra CFLAGS applied to src/*.m files.
2788 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
2790 # We also have mouse menus.
2795 if test "${HAVE_W32}" = "yes"; then
2799 ### Use session management (-lSM -lICE) if available
2802 if test "${HAVE_X11}" = "yes"; then
2803 AC_CHECK_HEADER(X11/SM/SMlib.h,
2804 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2806 if test "${HAVE_X_SM}" = "yes"; then
2807 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2811 *) LIBS="$LIBXSM $LIBS" ;;
2817 ### Use XRandr (-lXrandr) if available
2819 if test "${HAVE_X11}" = "yes"; then
2820 XRANDR_REQUIRED=1.2.2
2821 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
2822 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
2823 if test $HAVE_XRANDR = no; then
2824 # Test old way in case pkg-config doesn't have it (older machines).
2825 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
2826 [AC_CHECK_LIB(Xrandr, XRRQueryExtension, HAVE_XRANDR=yes)])
2827 if test $HAVE_XRANDR = yes; then
2828 XRANDR_LIBS=-lXrandr
2829 AC_SUBST(XRANDR_LIBS)
2832 if test $HAVE_XRANDR = yes; then
2833 SAVE_CFLAGS="$CFLAGS"
2835 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
2836 LIBS="$XRANDR_LIBS $LIBS"
2837 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
2838 CFLAGS="$SAVE_CFLAGS"
2841 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
2845 ### Use Xinerama (-lXinerama) if available
2847 if test "${HAVE_X11}" = "yes"; then
2848 XINERAMA_REQUIRED=1.0.2
2849 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
2850 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
2852 if test $HAVE_XINERAMA = no; then
2853 # Test old way in case pkg-config doesn't have it (older machines).
2854 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
2855 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
2856 if test $HAVE_XINERAMA = yes; then
2857 XINERAMA_LIBS=-lXinerama
2858 AC_SUBST(XINERAMA_LIBS)
2861 if test $HAVE_XINERAMA = yes; then
2862 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
2867 ### Use libxml (-lxml2) if available
2869 if test "${with_xml2}" != "no"; then
2870 ### I'm not sure what the version number should be, so I just guessed.
2871 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2872 if test "${HAVE_LIBXML2}" = "yes"; then
2873 LIBS="$LIBXML2_LIBS $LIBS"
2874 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2875 if test "${HAVE_LIBXML2}" = "yes"; then
2876 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2883 AC_SUBST(LIBXML2_LIBS)
2884 AC_SUBST(LIBXML2_CFLAGS)
2886 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2887 AC_CACHE_CHECK(whether netdb declares h_errno,
2888 emacs_cv_netdb_declares_h_errno,
2889 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2890 [[return h_errno;]])],
2891 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2892 if test $emacs_cv_netdb_declares_h_errno = yes; then
2893 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2896 # sqrt and other floating-point functions such as fmod and frexp
2897 # are found in -lm on most systems.
2898 AC_CHECK_LIB(m, sqrt)
2900 # Check for mail-locking functions in a "mail" library. Probably this should
2901 # have the same check as for liblockfile below.
2902 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2903 if test $have_mail = yes; then
2905 LIBS="$LIBS_MAIL $LIBS"
2906 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2910 dnl Debian, at least:
2911 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2912 if test $have_lockfile = yes; then
2913 LIBS_MAIL=-llockfile
2914 LIBS="$LIBS_MAIL $LIBS"
2915 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2917 # If we have the shared liblockfile, assume we must use it for mail
2918 # locking (e.g. Debian). If we couldn't link against liblockfile
2919 # (no liblockfile.a installed), ensure that we don't need to.
2920 dnl This works for files generally, not just executables.
2921 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2922 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2923 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2924 if test $ac_cv_prog_liblockfile = yes; then
2925 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2926 This probably means that movemail could lose mail.
2927 There may be a `development' package to install containing liblockfile.])
2930 AC_CHECK_HEADERS_ONCE(maillock.h)
2933 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2934 ## interlock access to the mail spool. The alternative is a lock file named
2935 ## /usr/spool/mail/$USER.lock.
2938 aix4-2) mail_lock="lockf" ;;
2940 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2942 ## On GNU/Linux systems, both methods are used by various mail programs.
2943 ## I assume most people are using newer mailers that have heard of flock.
2944 ## Change this if you need to.
2945 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2946 ## configure gets the right answers, and that means *NOT* using flock.
2947 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2948 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2949 ## Debian maintainer hasn't provided a clean fix for Emacs.
2950 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2951 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2952 ## correct logic. -- fx
2953 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2954 ## liblockfile is a Free Software replacement for libmail, used on
2955 ## Debian systems and elsewhere. -rfr.
2958 if test $have_mail = yes || test $have_lockfile = yes; then
2959 test $ac_cv_header_maillock_h = yes && mail_lock=no
2965 case "$mail_lock" in
2966 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2968 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2970 *) BLESSMAIL_TARGET="need-blessmail" ;;
2972 AC_SUBST(BLESSMAIL_TARGET)
2975 AC_CHECK_FUNCS(gethostname \
2976 getrusage get_current_dir_name \
2978 select getpagesize setlocale \
2979 utimes getrlimit setrlimit shutdown getaddrinfo \
2980 strsignal setitimer \
2981 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2982 gai_strerror mkstemp getline getdelim sync \
2983 difftime posix_memalign \
2984 getpwent endpwent getgrent endgrent \
2986 cfmakeraw cfsetspeed copysign __executable_start)
2988 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2989 ## has a broken `rint' in some library versions including math library
2990 ## version number A.09.05.
2991 ## You can fix the math library by installing patch number PHSS_4630.
2992 ## But we can fix it more reliably for Emacs by just not using rint.
2993 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2996 *) AC_CHECK_FUNCS(random rint) ;;
2999 dnl Cannot use AC_CHECK_FUNCS
3000 AC_CACHE_CHECK([for __builtin_unwind_init],
3001 emacs_cv_func___builtin_unwind_init,
3002 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3003 emacs_cv_func___builtin_unwind_init=yes,
3004 emacs_cv_func___builtin_unwind_init=no)])
3005 if test $emacs_cv_func___builtin_unwind_init = yes; then
3006 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3007 [Define to 1 if you have the `__builtin_unwind_init' function.])
3010 AC_CHECK_HEADERS_ONCE(sys/un.h)
3015 AC_CHECK_FUNCS(grantpt)
3017 # PTY-related GNU extensions.
3018 AC_CHECK_FUNCS(getpt posix_openpt)
3020 # Check this now, so that we will NOT find the above functions in ncurses.
3021 # That is because we have not set up to link ncurses in lib-src.
3022 # It's better to believe a function is not available
3023 # than to expect to find it in ncurses.
3024 # Also we need tputs and friends to be able to build at all.
3025 AC_MSG_CHECKING([for library containing tputs])
3026 # Run a test program that contains a call to tputs, a call that is
3027 # never executed. This tests whether a pre-'main' dynamic linker
3028 # works with the library. It's too much trouble to actually call
3029 # tputs in the test program, due to portability hassles. When
3030 # cross-compiling, assume the test program will run if it links.
3031 AC_DEFUN([tputs_link_source], [
3033 [[extern void tputs (const char *, int, int (*)(int));
3034 int main (int argc, char **argv)
3037 tputs (argv[0], 0, 0);
3041 # Maybe curses should be tried earlier?
3042 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3043 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3045 if test -z "$tputs_library"; then
3049 LIBS_TERMCAP=-l$tputs_library
3051 LIBS="$LIBS_TERMCAP $LIBS"
3053 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3054 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3056 if test "X$msg" != Xno; then
3060 AC_MSG_RESULT([$msg])
3061 if test "X$msg" = Xno; then
3062 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3063 The following libraries were tried (in order):
3064 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3065 Please try installing whichever of these libraries is most appropriate
3066 for your system, together with its header files.
3067 For example, a libncurses-dev(el) or similar package.])
3070 ## Use termcap instead of terminfo?
3071 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3073 ## FIXME? In the cases below where we unconditionally set
3074 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3075 ## if that was found above to have tputs.
3076 ## Should we use the gnu* logic everywhere?
3078 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3079 ## The ncurses library has been moved out of the System framework in
3080 ## Mac OS X 10.2. So if configure detects it, set the command-line
3081 ## option to use it.
3082 darwin) LIBS_TERMCAP="-lncurses" ;;
3084 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3087 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3088 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3089 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3090 [[#if __FreeBSD_version < 400000
3093 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3095 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3097 if test $emacs_cv_freebsd_terminfo = yes; then
3098 LIBS_TERMCAP="-lncurses"
3101 LIBS_TERMCAP="-ltermcap"
3106 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3108 LIBS_TERMCAP="-ltermcap"
3112 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3114 ## hpux: Make sure we get select from libc rather than from libcurses
3115 ## because libcurses on HPUX 10.10 has a broken version of select.
3116 ## We used to use -lc -lcurses, but this may be cleaner.
3117 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3118 # set that way, now it uses the default). Isn't this a contradiction?
3119 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3123 TERMCAP_OBJ=tparam.o
3124 if test $TERMINFO = yes; then
3125 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3126 TERMCAP_OBJ=terminfo.o
3128 AC_SUBST(LIBS_TERMCAP)
3129 AC_SUBST(TERMCAP_OBJ)
3132 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3133 # On Darwin, res_init appears not to be useful: see bug#562 and
3134 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3137 if test $opsys != darwin; then
3139 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3140 #include <arpa/nameser.h>
3141 #include <resolv.h>]],
3142 [[return res_init();]])],
3143 have_res_init=yes, have_res_init=no)
3144 if test "$have_res_init" = no; then
3146 LIBS="$LIBS -lresolv"
3147 AC_MSG_CHECKING(for res_init with -lresolv)
3148 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3149 #include <arpa/nameser.h>
3150 #include <resolv.h>]],
3151 [[return res_init();]])],
3152 have_res_init=yes, have_res_init=no)
3153 AC_MSG_RESULT($have_res_init)
3154 if test "$have_res_init" = yes ; then
3160 if test "$have_res_init" = yes; then
3161 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3165 # Do we need the Hesiod library to provide the support routines?
3166 dnl FIXME? Should we be skipping this on Darwin too?
3168 if test "$with_hesiod" != no ; then
3169 # Don't set $LIBS here -- see comments above. FIXME which comments?
3170 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3171 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3172 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3173 if test "$resolv" = yes ; then
3178 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3179 hesiod=yes, :, $RESOLVLIB)])
3181 if test x"$hesiod" = xyes; then
3182 AC_DEFINE(HAVE_LIBHESIOD, 1,
3183 [Define to 1 if you have the hesiod library (-lhesiod).])
3189 # Do we need libresolv (due to res_init or Hesiod)?
3190 if test "$resolv" = yes && test $opsys != darwin; then
3191 AC_DEFINE(HAVE_LIBRESOLV, 1,
3192 [Define to 1 if you have the resolv library (-lresolv).])
3199 # These tell us which Kerberos-related libraries to use.
3206 if test "${with_kerberos}" != no; then
3207 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3208 if test $have_com_err = yes; then
3209 COM_ERRLIB=-lcom_err
3210 LIBS="$COM_ERRLIB $LIBS"
3211 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3213 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3214 if test $have_crypto = yes; then
3216 LIBS="$CRYPTOLIB $LIBS"
3217 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3219 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3220 if test $have_k5crypto = yes; then
3221 CRYPTOLIB=-lk5crypto
3222 LIBS="$CRYPTOLIB $LIBS"
3223 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3225 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3226 if test $have_krb5=yes; then
3228 LIBS="$KRB5LIB $LIBS"
3229 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3231 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3232 if test "${with_kerberos5}" = no; then
3233 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3234 if test $have_des425 = yes; then
3236 LIBS="$DESLIB $LIBS"
3237 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3239 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3240 if test $have_des = yes; then
3242 LIBS="$DESLIB $LIBS"
3243 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3246 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3247 if test $have_krb4 = yes; then
3249 LIBS="$KRB4LIB $LIBS"
3250 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3252 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3253 if test $have_krb = yes; then
3255 LIBS="$KRB4LIB $LIBS"
3256 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3261 if test "${with_kerberos5}" != no; then
3262 AC_CHECK_HEADERS(krb5.h,
3263 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3264 [#include <krb5.h>])])
3266 AC_CHECK_HEADERS(des.h,,
3267 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3268 [AC_CHECK_HEADERS(kerberos/des.h)])])
3269 AC_CHECK_HEADERS(krb.h,,
3270 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3271 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3273 AC_CHECK_HEADERS(com_err.h)
3276 AC_SUBST(COM_ERRLIB)
3282 AC_CHECK_FUNCS_ONCE(tzset)
3283 AC_MSG_CHECKING(whether localtime caches TZ)
3284 AC_CACHE_VAL(emacs_cv_localtime_cache,
3285 [if test x$ac_cv_func_tzset = xyes; then
3286 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3287 char TZ_GMT0[] = "TZ=GMT0";
3288 char TZ_PST8[] = "TZ=PST8";
3291 time_t now = time ((time_t *) 0);
3292 int hour_GMT0, hour_unset;
3293 if (putenv (TZ_GMT0) != 0)
3295 hour_GMT0 = localtime (&now)->tm_hour;
3297 hour_unset = localtime (&now)->tm_hour;
3298 if (putenv (TZ_PST8) != 0)
3300 if (localtime (&now)->tm_hour == hour_GMT0)
3303 if (localtime (&now)->tm_hour != hour_unset)
3306 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3307 [# If we have tzset, assume the worst when cross-compiling.
3308 emacs_cv_localtime_cache=yes])
3310 # If we lack tzset, report that localtime does not cache TZ,
3311 # since we can't invalidate the cache if we don't have tzset.
3312 emacs_cv_localtime_cache=no
3314 AC_MSG_RESULT($emacs_cv_localtime_cache)
3315 if test $emacs_cv_localtime_cache = yes; then
3316 AC_DEFINE(LOCALTIME_CACHE, 1,
3317 [Define to 1 if localtime caches TZ.])
3321 AC_CHECK_FUNC(socket, , ok_so_far=no)
3322 if test $ok_so_far = yes; then
3323 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3325 if test $ok_so_far = yes; then
3326 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3328 if test $ok_so_far = yes; then
3329 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3330 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3331 [Define to 1 if you have inet sockets.])
3334 if test -f /usr/lpp/X11/bin/smt.exp; then
3335 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3336 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3339 AC_MSG_CHECKING(whether system supports dynamic ptys)
3340 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3342 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3347 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3348 dnl This can be removed once we assume Autoconf 2.70.
3350 *-solaris2.4 | *-solaris2.4.*)
3351 dnl Disable the Autoconf-generated vfork test.
3352 : ${ac_cv_func_vfork_works=no};;
3357 AC_CHECK_FUNCS(snprintf)
3359 dnl Adapted from Haible's version.
3360 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3361 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3362 [[char* cs = nl_langinfo(CODESET);]])],
3363 emacs_cv_langinfo_codeset=yes,
3364 emacs_cv_langinfo_codeset=no)
3366 if test $emacs_cv_langinfo_codeset = yes; then
3367 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3368 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3373 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3374 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3375 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3376 if test "$emacs_cv_c_restrict_arr" = yes; then
3377 AC_DEFINE(__restrict_arr, __restrict,
3378 [Define to compiler's equivalent of C99 restrict keyword in array
3379 declarations. Define as empty for no equivalent.])
3382 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3383 dnl how the tty code is related to POSIX and/or other versions of termios.
3384 dnl The following looks like a useful start.
3386 dnl AC_SYS_POSIX_TERMIOS
3387 dnl if test $ac_cv_sys_posix_termios = yes; then
3388 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3389 dnl and macros for terminal control.])
3390 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3393 dnl Turned on June 1996 supposing nobody will mind it.
3394 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3395 in the full name stands for the login id.])
3397 dnl Every platform that uses configure (ie every non-MS platform)
3398 dnl supports this. There is a create-lockfiles option you can
3399 dnl customize if you do not want the lock files to be written.
3400 dnl So it is not clear that this #define still needs to exist.
3401 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3402 so that Emacs can tell instantly when you try to modify a file that
3403 someone else has modified in his/her Emacs.])
3405 dnl Everybody supports this, except MS.
3406 dnl Seems like the kind of thing we should be testing for, though.
3407 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3408 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3410 dnl Everybody supports this, except MS-DOS.
3411 dnl Seems like the kind of thing we should be testing for, though.
3412 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3413 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3414 4.2-compatible sockets.])
3416 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3418 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3419 a null file, or a data sink.])
3421 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3423 dnl Everybody supports this, except MS-DOS.
3424 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3426 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3429 AC_DEFINE(DIRECTORY_SEP, ['/'],
3430 [Character that separates directories in a file name.])
3432 dnl Only used on MS platforms.
3433 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3435 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3436 [Returns true if character is a device separator.])
3438 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3439 [Returns true if character is a directory separator.])
3441 dnl On MS, this also accepts IS_DEVICE_SEP.
3442 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3443 [Returns true if character is any form of separator.])
3446 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3450 dnl Unfortunately without libXmu we cannot support EditRes.
3451 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3452 AC_DEFINE(NO_EDITRES, 1)
3457 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3458 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3459 AC_DEFINE(NO_EDITRES, 1)
3465 irix6-5 | sol2* | unixware )
3466 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3467 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3468 dnl need the constant to dimension an array. So wire in the appropriate
3470 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3474 emacs_broken_SIGIO=no
3477 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3478 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3479 hpux* | irix6-5 | openbsd | sol2* | unixware )
3480 emacs_broken_SIGIO=yes
3484 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3485 dnl the way this system works, libc functions that return malloced
3486 dnl memory use the libc malloc implementation. Calling xfree or
3487 dnl xrealloc on the results of such functions results in a crash.
3489 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3490 dnl but that does not currently work on this system.
3492 dnl It is possible to completely override the malloc implementation on
3493 dnl AIX, but that involves putting the malloc functions in a shared
3494 dnl library and setting the MALLOCTYPE environment variable to point to
3495 dnl that shared library.
3497 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3498 dnl to avoid a crash just use the Emacs implementation for that function.
3500 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3501 dnl of this file, so that we do not check for get_current_dir_name
3502 dnl on AIX. But that might be fragile if something else ends
3503 dnl up testing for get_current_dir_name as a dependency.
3504 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3505 get_current_dir_name should not be used.])
3509 dnl Circumvent a bug in FreeBSD. In the following sequence of
3510 dnl writes/reads on a PTY, read(2) returns bogus data:
3512 dnl write(2) 1022 bytes
3513 dnl write(2) 954 bytes, get EAGAIN
3514 dnl read(2) 1024 bytes in process_read_output
3515 dnl read(2) 11 bytes in process_read_output
3517 dnl That is, read(2) returns more bytes than have ever been written
3518 dnl successfully. The 1033 bytes read are the 1022 bytes written
3519 dnl successfully after processing (for example with CRs added if the
3520 dnl terminal is set up that way which it is here). The same bytes will
3521 dnl be seen again in a later read(2), without the CRs.
3522 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3523 work around an issue when reading from a PTY.])
3529 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3530 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3535 darwin | dragonfly | freebsd | netbsd | openbsd )
3536 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3537 close a pty to make it a controlling terminal (it is already a
3538 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3542 dnl FIXME Surely we can test for this rather than hard-code it.
3544 netbsd | openbsd) sound_device="/dev/audio" ;;
3545 *) sound_device="/dev/dsp" ;;
3549 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3550 [Name of the default sound device.])
3553 dnl Emacs can read input using SIGIO and buffering characters itself,
3554 dnl or using CBREAK mode and making C-g cause SIGINT.
3555 dnl The choice is controlled by the variable interrupt_input.
3557 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3559 dnl Emacs uses the presence of the USABLE_SIGIO macro
3560 dnl to indicate whether or not signal-driven I/O is possible. It uses
3561 dnl INTERRUPT_INPUT to decide whether to use it by default.
3563 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3564 dnl CBREAK mode has two disadvantages
3565 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3566 dnl I hear that in system V this problem does not exist.
3567 dnl 2) Control-G causes output to be discarded.
3568 dnl I do not know whether this can be fixed in system V.
3570 dnl Another method of doing input is planned but not implemented.
3571 dnl It would have Emacs fork off a separate process
3572 dnl to read the input and send it to the true Emacs process
3575 darwin | gnu-linux | gnu-kfreebsd )
3576 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3581 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3582 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3583 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3584 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3585 dnl taking float or double parameters.
3587 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3588 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3589 file defines `NeedWidePrototypes' as `NO'.])
3594 dnl Used in process.c, this must be a loop, even if it only runs once.
3595 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3596 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3597 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3598 dnl trying suffixes 0-16.
3599 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3600 first PTY, if PTYs are supported.])
3601 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3602 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3603 end of a PTY, if non-standard.])
3604 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3605 end of a PTY, if non-standard.])
3609 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3610 dnl You allocate a pty by opening /dev/ptc to get the master side.
3611 dnl To get the name of the slave side, you just ttyname() the master side.
3612 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3613 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3617 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3618 dnl multi-line AC_DEFINEs are hard. :(
3619 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)])
3620 AC_DEFINE(PTY_NAME_SPRINTF, [])
3621 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3624 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3626 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3627 dnl Not used, because PTY_ITERATION is defined.
3628 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3629 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3630 dnl But we don't have to block SIGCHLD because it is blocked in the
3631 dnl implementation of grantpt.
3632 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3633 AC_DEFINE(PTY_NAME_SPRINTF, [])
3634 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3638 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3641 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
3643 if test "x$ac_cv_func_grantpt" = xyes; then
3644 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3645 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3646 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3647 dnl to prevent sigchld_handler from intercepting the child's death.
3648 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { close (fd); return -1; } snprintf (pty_name, sizeof pty_name, "%s", ptyname); }])
3649 dnl if HAVE_POSIX_OPENPT
3650 if test "x$ac_cv_func_posix_openpt" = xyes; then
3651 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3652 AC_DEFINE(PTY_NAME_SPRINTF, [])
3654 elif test "x$ac_cv_func_getpt" = xyes; then
3655 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3656 AC_DEFINE(PTY_NAME_SPRINTF, [])
3658 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3661 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3666 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3667 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3668 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3672 dnl It looks like this cannot be right, because it is not a loop.
3673 dnl However, process.c actually does this:
3679 dnl which presumably makes it OK, since irix == sgi (?).
3680 dnl FIXME it seems like this special treatment is unnecessary?
3681 dnl Why can't irix use a single-trip loop like eg cygwin?
3682 AC_DEFINE(PTY_ITERATION, [])
3683 dnl Not used, because PTY_ITERATION is defined.
3684 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3685 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); }])
3686 dnl No need to get the pty name at all.
3687 AC_DEFINE(PTY_NAME_SPRINTF, [])
3688 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3689 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3693 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3694 dnl from intercepting that death. If any child but grantpt's should die
3695 dnl within, it should be caught after sigrelse(2).
3696 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); }])
3700 dnl Comments are as per sol2*.
3701 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); }])
3708 dnl This change means that we don't loop through allocate_pty too
3709 dnl many times in the (rare) event of a failure.
3710 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3711 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3712 dnl Push various streams modules onto a PTY channel. Used in process.c.
3713 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.])
3718 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3719 "typing" a signal character on the pty.])
3722 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3723 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3724 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
3725 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3728 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3729 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3730 gnu-linux | gnu-kfreebsd )
3732 AC_MSG_CHECKING([for signals via characters])
3733 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3734 #include <linux/version.h>
3735 #if LINUX_VERSION_CODE < 0x20400
3736 # error "Linux version too old"
3738 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3740 AC_MSG_RESULT([$emacs_signals_via_chars])
3741 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3746 dnl Used in lisp.h, emacs.c, vm-limit.c
3747 dnl NEWS.18 describes this as "a number which contains
3748 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3749 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3750 stored in a Lisp_Object.])
3751 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3755 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
3756 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
3759 dnl The data segment on this machine always starts at address 0x40000000.
3760 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3763 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3768 AH_TEMPLATE(TAB3, [Undocumented.])
3771 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3773 gnu | dragonfly | freebsd | netbsd | openbsd )
3774 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3775 AC_DEFINE(TAB3, OXTABS)
3778 gnu-linux | gnu-kfreebsd )
3779 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3783 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3784 [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)],
3785 [Mark a secondary stack, like the register stack on the ia64.]), [])
3789 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3790 run_time_remap; for HPUX.])
3795 dnl This won't be used automatically yet. We also need to know, at least,
3796 dnl that the stack is continuous.
3797 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3798 registers relevant for conservative garbage collection in the jmp_buf.])
3802 dnl Not all the architectures are tested, but there are Debian packages
3803 dnl for SCM and/or Guile on them, so the technique must work. See also
3804 dnl comments in alloc.c concerning setjmp and gcc.
3805 dnl Fixme: it's probably safe to just use the GCC conditional below.
3806 gnu-linux | gnu-kfreebsd )
3807 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3808 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3809 || defined __alpha__ || defined __mips__ || defined __s390__ \
3810 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3811 || defined __ia64__ || defined __sh__
3814 # error "setjmp not known to work on this arch"
3816 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
3821 if test x$GCC = xyes; then
3822 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3823 AC_DEFINE(GC_SETJMP_WORKS, 1)
3826 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3827 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
3828 AC_DEFINE(GC_SETJMP_WORKS, 1)
3833 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3836 [[#include <setjmp.h>
3840 _longjmp (j, 1);]])],
3841 [emacs_cv_func__setjmp=yes],
3842 [emacs_cv_func__setjmp=no])])
3843 if test $emacs_cv_func__setjmp = yes; then
3844 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3846 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3849 [[#include <setjmp.h>
3852 if (! sigsetjmp (j, 1))
3853 siglongjmp (j, 1);]])],
3854 [emacs_cv_func_sigsetjmp=yes],
3855 [emacs_cv_func_sigsetjmp=no])])
3856 if test $emacs_cv_func_sigsetjmp = yes; then
3857 AC_DEFINE([HAVE_SIGSETJMP], 1,
3858 [Define to 1 if sigsetjmp and siglongjmp work.
3859 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3865 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3866 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3867 dnl and this is all we need.
3868 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3875 dnl Used in xfaces.c.
3876 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3877 some systems, where it requires time.h.])
3882 dnl Define symbols to identify the version of Unix this is.
3883 dnl Define all the symbols that apply correctly.
3884 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3885 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3886 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3887 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3888 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3894 dnl This symbol should be defined on AIX Version 3 ???????
3895 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3897 # error "_AIX not defined"
3899 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3903 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3907 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
3908 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
3909 dnl distinguish OS X from pure Darwin.
3910 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3913 gnu-linux | gnu-kfreebsd )
3915 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3921 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3927 AC_DEFINE(USG5_4, [])
3928 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3934 AC_DEFINE(USG5_4, [])
3935 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3941 AC_DEFINE(USG5_4, [])
3945 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3948 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3949 emacs_cv_usable_FIONREAD=no
3954 [AC_LANG_PROGRAM([[#include <sys/types.h>
3955 #include <sys/ioctl.h>
3957 # include <sys/filio.h>
3960 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3961 [emacs_cv_usable_FIONREAD=yes],
3962 [emacs_cv_usable_FIONREAD=no])
3965 if test $emacs_cv_usable_FIONREAD = yes; then
3966 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3968 if test $emacs_broken_SIGIO = no; then
3969 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3971 [AC_LANG_PROGRAM([[#include <fcntl.h>
3974 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3975 [emacs_cv_usable_SIGIO=yes],
3976 [emacs_cv_usable_SIGIO=no])],
3977 [emacs_cv_usable_SIGIO=yes],
3978 [emacs_cv_usable_SIGIO=no])
3979 if test $emacs_cv_usable_SIGIO = yes; then
3980 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3987 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3988 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3989 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3990 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3992 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3993 G_SLICE environment variable to "always-malloc" at startup, if
3998 dnl It works to open the pty's tty in the parent (Emacs), then
3999 dnl close and reopen it in the child.
4000 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4001 works to open a pty's tty in the parent process, then close and
4002 reopen it in the child.])
4006 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4007 use VSUSP instead of VSWTCH.])
4011 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4016 # Set up the CFLAGS for real compilation, so we can substitute it.
4017 CFLAGS="$REAL_CFLAGS"
4018 CPPFLAGS="$REAL_CPPFLAGS"
4020 ## Hack to detect a buggy GCC version.
4021 if test "x$GCC" = xyes \
4022 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4023 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4024 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4025 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4028 version=$PACKAGE_VERSION
4030 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4031 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4032 [Short copyright string for this version of Emacs.])
4035 ### Specify what sort of things we'll be editing into Makefile and config.h.
4036 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4038 AC_SUBST(configuration)
4043 AC_SUBST(exec_prefix)
4046 AC_SUBST(sharedstatedir)
4047 AC_SUBST(libexecdir)
4052 AC_SUBST(standardlisppath)
4053 AC_SUBST(locallisppath)
4055 AC_SUBST(x_default_search_path)
4057 AC_SUBST(archlibdir)
4062 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4063 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4064 ## end of LIBX_BASE, but nothing ever set it.
4065 AC_SUBST(LD_SWITCH_X_SITE)
4066 AC_SUBST(C_SWITCH_X_SITE)
4067 AC_SUBST(GNUSTEP_CFLAGS)
4069 ## Used in lwlib/Makefile.in.
4070 AC_SUBST(X_TOOLKIT_TYPE)
4072 AC_SUBST(ns_appbindir)
4073 AC_SUBST(ns_appresdir)
4075 AC_SUBST(GNU_OBJC_CFLAGS)
4076 AC_SUBST(OTHER_FILES)
4078 if test -n "${term_header}"; then
4079 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4080 [Define to the header for the built-in window system.])
4083 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4084 [Define to the canonical Emacs configuration name.])
4085 dnl Replace any embedded " characters (bug#13274).
4086 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g"`
4087 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4088 [Define to the options passed to configure.])
4089 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4090 define this to include extra configuration information.])
4095 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4096 AC_DEFINE(HAVE_X_WINDOWS, 1,
4097 [Define to 1 if you want to use the X window system.])
4099 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4101 if test "$HAVE_XFT" = "yes"; then
4102 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4103 elif test "$HAVE_FREETYPE" = "yes"; then
4104 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4114 if test "${USE_X_TOOLKIT}" != "none" ; then
4116 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4117 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4118 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4119 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4120 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4124 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4125 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4129 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4130 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4131 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4135 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4136 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4139 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4142 AC_SUBST(WIDGET_OBJ)
4145 case "$USE_X_TOOLKIT" in
4146 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4147 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4148 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4150 AC_SUBST(TOOLKIT_LIBW)
4152 if test "$USE_X_TOOLKIT" = "none"; then
4153 LIBXT_OTHER="\$(LIBXSM)"
4154 OLDXMENU_TARGET="really-oldXMenu"
4156 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4157 OLDXMENU_TARGET="really-lwlib"
4159 AC_SUBST(LIBXT_OTHER)
4161 ## The X Menu stuff is present in the X10 distribution, but missing
4162 ## from X11. If we have X10, just use the installed library;
4163 ## otherwise, use our own copy.
4164 if test "${HAVE_X11}" = "yes" ; then
4165 AC_DEFINE(HAVE_X11, 1,
4166 [Define to 1 if you want to use version 11 of X windows.
4167 Otherwise, Emacs expects to use version 10.])
4169 if test "$USE_X_TOOLKIT" = "none"; then
4170 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4172 OLDXMENU="\${lwlibdir}/liblw.a"
4174 LIBXMENU="\$(OLDXMENU)"
4175 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4176 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4178 ## For a syntactically valid Makefile; not actually used for anything.
4179 ## See comments in src/Makefile.in.
4181 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4182 if test "${HAVE_X_WINDOWS}" = "yes"; then
4191 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4198 AC_SUBST(OLDXMENU_TARGET)
4201 AC_SUBST(LIBX_OTHER)
4202 AC_SUBST(OLDXMENU_DEPS)
4204 if test "${HAVE_MENUS}" = "yes" ; then
4205 AC_DEFINE(HAVE_MENUS, 1,
4206 [Define to 1 if you have mouse menus.
4207 (This is automatic if you use X, but the option to specify it remains.)
4208 It is also defined with other window systems that support xmenu.c.])
4211 if test "${GNU_MALLOC}" = "yes" ; then
4212 AC_DEFINE(GNU_MALLOC, 1,
4213 [Define to 1 if you want to use the GNU memory allocator.])
4217 if test "${REL_ALLOC}" = "yes" ; then
4218 AC_DEFINE(REL_ALLOC, 1,
4219 [Define REL_ALLOC if you want to use the relocating allocator for
4222 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4224 AC_SUBST(RALLOC_OBJ)
4226 if test "$opsys" = "cygwin"; then
4227 CYGWIN_OBJ="sheap.o cygw32.o"
4228 ## Cygwin differs because of its unexec().
4230 POST_ALLOC_OBJ=lastfile.o
4233 PRE_ALLOC_OBJ=lastfile.o
4236 AC_SUBST(CYGWIN_OBJ)
4237 AC_SUBST(PRE_ALLOC_OBJ)
4238 AC_SUBST(POST_ALLOC_OBJ)
4240 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4241 # it temporarily reverts them to their pre-pkg-config values,
4242 # because gnulib needs to work with both src (which uses the
4243 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4244 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4245 # and it therefore needs to run in an environment where LIBS does not
4246 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4247 # for some package unrelated to lib-src.
4250 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4251 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4252 gl_ASSERT_NO_GNULIB_POSIXCHECK
4253 gl_ASSERT_NO_GNULIB_TESTS
4259 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4262 ## The -headerpad option tells ld (see man page) to leave room at the
4263 ## end of the header for adding load commands. Needed for dumping.
4264 ## 0x690 is the total size of 30 segment load commands (at 56
4265 ## each); under Cocoa 31 commands are required.
4266 if test "$HAVE_NS" = "yes"; then
4267 libs_nsgui="-framework AppKit"
4273 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4275 ## This is here because src/Makefile.in did some extra fiddling around
4276 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4277 ## LD_SWITCH_SYSTEM_TEMACS instead,
4278 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4279 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4282 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4283 ## find X at run-time.
4284 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4285 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4286 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4287 ## had different values in configure (in ac_link) and src/Makefile.in.
4288 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4289 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4291 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4294 if test x$ac_enable_profiling != x ; then
4296 *freebsd | gnu-linux) ;;
4297 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4301 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4303 ## Common for all window systems
4304 if test "$window_system" != "none"; then
4305 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4306 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4309 AC_SUBST(WINDOW_SYSTEM_OBJ)
4311 AH_TOP([/* GNU Emacs site configuration template file.
4313 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4314 Free Software Foundation, Inc.
4316 This file is part of GNU Emacs.
4318 GNU Emacs is free software: you can redistribute it and/or modify
4319 it under the terms of the GNU General Public License as published by
4320 the Free Software Foundation, either version 3 of the License, or
4321 (at your option) any later version.
4323 GNU Emacs is distributed in the hope that it will be useful,
4324 but WITHOUT ANY WARRANTY; without even the implied warranty of
4325 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4326 GNU General Public License for more details.
4328 You should have received a copy of the GNU General Public License
4329 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4332 /* No code in Emacs #includes config.h twice, but some bits of code
4333 intended to work with other packages as well (like gmalloc.c)
4334 think they can include it as many times as they like. */
4335 #ifndef EMACS_CONFIG_H
4336 #define EMACS_CONFIG_H
4339 AH_BOTTOM([#include <conf_post.h>
4341 #endif /* EMACS_CONFIG_H */
4350 #### Report on what we decided to do.
4351 #### Report GTK as a toolkit, even if it doesn't use Xt.
4352 #### It makes printing result more understandable as using GTK sets
4353 #### toolkit_scroll_bars to yes by default.
4354 if test "${HAVE_GTK}" = "yes"; then
4355 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4359 Configured for \`${canonical}'.
4361 Where should the build process find the source code? ${srcdir}
4362 What compiler should emacs be built with? ${CC} ${CFLAGS}
4363 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4364 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4365 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4366 What window system should Emacs use? ${window_system}
4367 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4369 if test -n "${x_includes}"; then
4370 echo " Where do we find X Windows header files? ${x_includes}"
4372 echo " Where do we find X Windows header files? Standard dirs"
4374 if test -n "${x_libraries}"; then
4375 echo " Where do we find X Windows libraries? ${x_libraries}"
4377 echo " Where do we find X Windows libraries? Standard dirs"
4380 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4381 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4382 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4383 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4384 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4385 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4386 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4387 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4389 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4390 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4391 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4392 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4393 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4394 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4395 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4397 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4398 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4399 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4400 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4402 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4405 if test -n "${EMACSDATA}"; then
4406 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4408 if test -n "${EMACSDOC}"; then
4409 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4414 if test "$HAVE_NS" = "yes"; then
4416 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4417 The installed application will go to nextstep/Emacs.app and can be
4418 run or moved from there."
4419 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4420 echo "The application will be fully self-contained."
4422 echo "The lisp resources for the application will be installed under ${prefix}.
4423 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4424 to run if these resources are not installed."
4429 if test "${opsys}" = "cygwin"; then
4431 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4437 # Remove any trailing slashes in these variables.
4438 [test "${prefix}" != NONE &&
4439 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4440 test "${exec_prefix}" != NONE &&
4441 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4443 if test "$HAVE_NS" = "yes"; then
4444 if test "$NS_IMPL_GNUSTEP" = yes; then
4445 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4446 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4448 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4449 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4453 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4454 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4455 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4456 dnl (else you get "no `Makefile.am' found for any configure output").
4457 dnl This will work, but you get a config.status that is not quite right
4458 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4459 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4460 dnl it seems better to just live with the duplication.
4461 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4463 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4464 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4465 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4466 leim/Makefile nextstep/Makefile])
4468 dnl test/ is not present in release tarfiles.
4469 opt_makefile=test/automated/Makefile
4471 if test -f "$srcdir/$opt_makefile.in"; then
4472 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4473 dnl Again, it's best not to use a variable. Though you can add
4474 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4475 AC_CONFIG_FILES([test/automated/Makefile])
4479 dnl admin/ may or may not be present.
4480 opt_makefile=admin/unidata/Makefile
4482 if test -f "$srcdir/$opt_makefile.in"; then
4483 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4484 AC_CONFIG_FILES([admin/unidata/Makefile])
4488 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4490 AC_SUBST(SUBDIR_MAKEFILES_IN)
4492 dnl Make the necessary directories, if they don't exist.
4493 AC_CONFIG_COMMANDS([mkdirs], [
4494 for dir in etc lisp ; do
4495 test -d ${dir} || mkdir ${dir}
4499 dnl You might wonder (I did) why epaths.h is generated by running make,
4500 dnl rather than just letting configure generate it from epaths.in.
4501 dnl One reason is that the various paths are not fully expanded (see above);
4502 dnl eg gamedir=${prefix}/var/games/emacs.
4503 dnl Secondly, the GNU Coding standards require that one should be able
4504 dnl to run `make prefix=/some/where/else' and override the values set
4505 dnl by configure. This also explains the `move-if-change' test and
4506 dnl the use of force in the `epaths-force' rule in Makefile.in.
4507 AC_CONFIG_COMMANDS([epaths], [
4508 echo creating src/epaths.h
4509 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4510 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4512 AC_CONFIG_COMMANDS([gdbinit], [
4513 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4514 echo creating src/.gdbinit
4515 echo "source $srcdir/src/.gdbinit" > src/.gdbinit