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, 1999-2012 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)
26 AC_CONFIG_HEADER(src/config.h:src/config.in)
27 AC_CONFIG_SRCDIR(src/lisp.h)
28 AC_CONFIG_AUX_DIR(build-aux)
29 dnl Fairly arbitrary, older versions might work too.
30 AM_INIT_AUTOMAKE(1.11)
32 dnl Support for --program-prefix, --program-suffix and
33 dnl --program-transform-name options
36 dnl It is important that variables on the RHS not be expanded here,
37 dnl hence the single quotes. This is per the GNU coding standards, see
38 dnl (autoconf) Installation Directory Variables
39 dnl See also epaths.h below.
40 lispdir='${datadir}/emacs/${version}/lisp'
41 leimdir='${datadir}/emacs/${version}/leim'
42 standardlisppath='${lispdir}:${leimdir}'
43 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
44 '${datadir}/emacs/site-lisp'
45 lisppath='${locallisppath}:${standardlisppath}'
46 etcdir='${datadir}/emacs/${version}/etc'
47 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
48 docdir='${datadir}/emacs/${version}/etc'
49 gamedir='${localstatedir}/games/emacs'
51 dnl Special option to disable the most of other options.
53 [AS_HELP_STRING([--without-all],
54 [omit almost all features and build
55 small executable with minimal dependencies])],
56 with_features=$withval,
59 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
60 dnl Create a new --with option that defaults to being disabled.
61 dnl NAME is the base name of the option. The shell variable with_NAME
62 dnl will be set to either the user's value (if the option is
63 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
64 dnl option is not specified). Note that the shell variable name is
65 dnl constructed as autoconf does, by replacing non-alphanumeric
66 dnl characters with "_".
67 dnl HELP-STRING is the help text for the option.
68 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
69 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
70 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
73 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
74 dnl Create a new --with option that defaults to $enable_features.
75 dnl NAME is the base name of the option. The shell variable with_NAME
76 dnl will be set either to 'no' (for a plain --without-NAME) or to
77 dnl 'yes' (if the option is not specified). Note that the shell
78 dnl variable name is constructed as autoconf does, by replacing
79 dnl non-alphanumeric characters with "_".
80 dnl HELP-STRING is the help text for the option.
81 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
82 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
83 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
86 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
87 if test "$with_pop" = yes; then
88 AC_DEFINE(MAIL_USE_POP)
90 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
92 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
93 if test "$with_kerberos" != no; then
97 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
99 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
100 if test "${with_kerberos5}" != no; then
101 if test "${with_kerberos}" = no; then
105 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
108 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
109 dnl FIXME hesiod support may not be present, so it seems like an error
110 dnl to define, or at least use, this unconditionally.
111 if test "$with_hesiod" != no; then
112 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
115 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
116 if test "$with_mmdf" != no; then
117 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
120 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
121 if test "$with_mail_unlink" != no; then
122 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
125 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
126 [string giving default POP mail host])],
127 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
129 OPTION_DEFAULT_ON([sound],[don't compile with sound support])
131 dnl FIXME currently it is not the last.
132 dnl This should be the last --with option, because --with-x is
133 dnl added later on when we find the file name of X, and it's best to
134 dnl keep them together visually.
135 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
136 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
137 [ case "${withval}" in
138 y | ye | yes ) val=gtk ;;
140 l | lu | luc | luci | lucid ) val=lucid ;;
141 a | at | ath | athe | athen | athena ) val=athena ;;
142 m | mo | mot | moti | motif ) val=motif ;;
143 g | gt | gtk ) val=gtk ;;
147 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
148 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
149 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
150 `athena' and `lucid' are synonyms.])
156 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
157 if test "$with_wide_int" = yes; then
158 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
161 dnl _ON results in a '--without' option in the --help output, so
162 dnl the help text should refer to "don't compile", etc.
163 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
164 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
165 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
166 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
167 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
168 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
169 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
170 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
172 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
173 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
174 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
176 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
177 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
178 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
179 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
180 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI])
182 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
183 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
184 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
185 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
186 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
187 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
188 OPTION_DEFAULT_ON([inotify],[don't compile with inotify (file-watch) support])
190 ## For the times when you want to build Emacs but don't have
191 ## a suitable makeinfo, and can live without the manuals.
192 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
193 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
195 ## Makefile.in needs the cache file name.
198 ## This is an option because I do not know if all info/man support
199 ## compressed files, nor how to test if they do so.
200 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
201 if test $with_compress_info = yes; then
208 AC_ARG_WITH([pkg-config-prog],dnl
209 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
210 [file name of pkg-config for finding GTK and librsvg])])
211 if test "X${with_pkg_config_prog}" != X; then
212 if test "${with_pkg_config_prog}" != yes; then
213 PKG_CONFIG="${with_pkg_config_prog}"
218 AC_ARG_WITH([crt-dir],dnl
219 [AS_HELP_STRING([--with-crt-dir=DIR],[directory containing crtn.o etc.
220 The default is /usr/lib, or /usr/lib64 on some platforms.])])
221 CRT_DIR="${with_crt_dir}"
223 AC_ARG_WITH(gameuser,dnl
224 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
225 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
226 && gameuser="${with_gameuser}"
227 test "X$gameuser" = X && gameuser=games
229 AC_ARG_WITH([gnustep-conf],dnl
230 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
231 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
232 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
233 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
234 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
235 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
237 AC_ARG_ENABLE(ns-self-contained,
238 [AS_HELP_STRING([--disable-ns-self-contained],
239 [disable self contained build under NeXTstep])],
240 EN_NS_SELF_CONTAINED=$enableval,
241 EN_NS_SELF_CONTAINED=yes)
243 AC_ARG_ENABLE(locallisppath,
244 [AS_HELP_STRING([--enable-locallisppath=PATH],
245 [directories Emacs should search for lisp files specific
247 if test "${enableval}" = "no"; then
249 elif test "${enableval}" != "yes"; then
250 locallisppath=${enableval}
253 AC_ARG_ENABLE(checking,
254 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
255 [enable expensive run-time checks. With LIST,
256 enable only specific categories of checks.
257 Categories are: all,yes,no.
258 Flags are: stringbytes, stringoverrun, stringfreelist,
259 xmallocoverrun, conslist, glyphs])],
260 [ac_checking_flags="${enableval}"],[])
261 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
262 for check in $ac_checking_flags
265 # these set all the flags to specific states
266 yes) ac_enable_checking=1 ;;
267 no) ac_enable_checking= ;
268 ac_gc_check_stringbytes= ;
269 ac_gc_check_string_overrun= ;
270 ac_gc_check_string_free_list= ;
271 ac_xmalloc_overrun= ;
272 ac_gc_check_cons_list= ;
274 all) ac_enable_checking=1 ;
275 ac_gc_check_stringbytes=1 ;
276 ac_gc_check_string_overrun=1 ;
277 ac_gc_check_string_free_list=1 ;
278 ac_xmalloc_overrun=1 ;
279 ac_gc_check_cons_list=1 ;
281 # these enable particular checks
282 stringbytes) ac_gc_check_stringbytes=1 ;;
283 stringoverrun) ac_gc_check_string_overrun=1 ;;
284 stringfreelist) ac_gc_check_string_free_list=1 ;;
285 xmallocoverrun) ac_xmalloc_overrun=1 ;;
286 conslist) ac_gc_check_cons_list=1 ;;
287 glyphs) ac_glyphs_debug=1 ;;
288 *) AC_MSG_ERROR(unknown check category $check) ;;
293 if test x$ac_enable_checking != x ; then
294 AC_DEFINE(ENABLE_CHECKING, 1,
295 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
297 if test x$ac_gc_check_stringbytes != x ; then
298 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
299 [Define this temporarily to hunt a bug. If defined, the size of
300 strings is redundantly recorded in sdata structures so that it can
301 be compared to the sizes recorded in Lisp strings.])
303 if test x$ac_gc_check_string_overrun != x ; then
304 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
305 [Define this to check for short string overrun.])
307 if test x$ac_gc_check_string_free_list != x ; then
308 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
309 [Define this to check the string free list.])
311 if test x$ac_xmalloc_overrun != x ; then
312 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
313 [Define this to check for malloc buffer overrun.])
315 if test x$ac_gc_check_cons_list != x ; then
316 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
317 [Define this to check for errors in cons list.])
319 if test x$ac_glyphs_debug != x ; then
320 AC_DEFINE(GLYPH_DEBUG, 1,
321 [Define this to enable glyphs debugging code.])
324 AC_ARG_ENABLE(check-lisp-object-type,
325 [AS_HELP_STRING([--enable-check-lisp-object-type],
326 [enable compile time checks for the Lisp_Object data type.
327 This is useful for development for catching certain types of bugs.])],
328 if test "${enableval}" != "no"; then
329 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
330 [Define this to enable compile time checks for the Lisp_Object data type.])
334 dnl The name of this option is unfortunate. It predates, and has no
335 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
336 dnl Actually, it stops it working.
337 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
338 AC_ARG_ENABLE(profiling,
339 [AS_HELP_STRING([--enable-profiling],
340 [build emacs with low-level, gprof profiling support.
341 Mainly useful for debugging Emacs itself. May not work on
342 all platforms. Stops profiler.el working.])],
343 [ac_enable_profiling="${enableval}"],[])
344 if test x$ac_enable_profiling != x ; then
345 PROFILING_CFLAGS="-DPROFILING=1 -pg"
349 AC_SUBST(PROFILING_CFLAGS)
351 AC_ARG_ENABLE(autodepend,
352 [AS_HELP_STRING([--enable-autodepend],
353 [automatically generate dependencies to .h-files.
354 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
356 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
358 #### Make srcdir absolute, if it isn't already. It's important to
359 #### avoid running the file name through pwd unnecessarily, since pwd can
360 #### give you automounter prefixes, which can go away. We do all this
361 #### so Emacs can find its files when run uninstalled.
362 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
367 ## We may be able to use the $PWD environment variable to make this
368 ## absolute. But sometimes PWD is inaccurate.
369 ## Note: we used to use $PWD at the end instead of `pwd`,
370 ## but that tested only for a well-formed and valid PWD,
371 ## it did not object when PWD was well-formed and valid but just wrong.
372 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
376 srcdir=`(cd "$srcdir"; pwd)`
379 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
382 ### Canonicalize the configuration name.
386 configuration=${host_alias-${build_alias-$host}}
388 dnl This used to use changequote, but, apart from `changequote is evil'
389 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
390 dnl the great gob of text. Thus it's not processed for possible expansion.
391 dnl Just make sure the brackets remain balanced.
393 dnl Since Emacs can't find matching pairs of quotes, boundaries are
394 dnl indicated by comments.
398 ### If you add support for a new configuration, add code to this
399 ### switch statement to recognize your configuration name and select
400 ### the appropriate operating system file.
402 ### You would hope that you could choose an s/*.h
403 ### file based on the operating system portion. However, it turns out
404 ### that each s/*.h file is pretty manufacturer-specific.
405 ### So we basically have to have a special case for each
406 ### configuration name.
408 ### As far as handling version numbers on operating systems is
409 ### concerned, make sure things will fail in a fixable way. If
410 ### /etc/MACHINES doesn't say anything about version numbers, be
411 ### prepared to handle anything reasonably. If version numbers
412 ### matter, be sure /etc/MACHINES says something about it.
415 case "${canonical}" in
417 ## GNU/Linux and similar ports
427 ## FreeBSD kernel + glibc based userland
442 ## Apple Darwin / Mac OS X
444 case "${canonical}" in
451 ## Use fink packages if available.
452 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
453 ## if test -d /sw/include && test -d /sw/lib; then
454 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
455 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
459 ## HP 9000 series 700 and 800, running HP/UX
463 hppa*-hp-hpux1[1-9]* )
465 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
469 rs6000-ibm-aix4.[23]* )
472 powerpc-ibm-aix4.[23]* )
475 rs6000-ibm-aix[56]* )
478 powerpc-ibm-aix[56]* )
482 ## Silicon Graphics machines
486 # Without defining _LANGUAGE_C, things get masked out in the headers
487 # so that, for instance, grepping for `free' in stdlib.h fails and
488 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
489 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
494 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
495 | x86_64-*-solaris2* | x86_64-*-sunos5*)
496 case "${canonical}" in
498 amd64-*-*|x86_64-*-*) ;;
502 case "${canonical}" in
503 *-sunos5.6* | *-solaris2.6* )
507 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
509 emacs_check_sunpro_c=yes
511 *-sunos5* | *-solaris* )
513 emacs_check_sunpro_c=yes
516 ## Watch out for a compiler that we know will not work.
517 case "${canonical}" in
518 *-solaris* | *-sunos5* )
519 if [ "x$CC" = x/usr/ucb/cc ]; then
520 ## /usr/ucb/cc doesn't work;
521 ## we should find some other compiler that does work.
529 ## Intel 386 machines where we don't care about the manufacturer.
531 case "${canonical}" in
532 *-cygwin ) opsys=cygwin ;;
533 *-darwin* ) opsys=darwin ;;
534 *-sysv4.2uw* ) opsys=unixware ;;
535 *-sysv5uw* ) opsys=unixware ;;
536 *-sysv5OpenUNIX* ) opsys=unixware ;;
537 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
546 ### If the code above didn't choose an operating system, just choose
547 ### an operating system based on the configuration name. You really
548 ### only want to use this when you have no idea what the right
549 ### operating system is; if you know what operating systems a machine
550 ### runs, it's cleaner to make it explicit in the case statement
552 if test x"${opsys}" = x; then
553 case "${canonical}" in
554 *-gnu* ) opsys=gnu ;;
564 if test $unported = yes; then
565 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
566 Check `etc/MACHINES' for recognized configuration names.])
570 #### Choose a compiler.
572 dnl Sets GCC=yes if using gcc.
576 if test x$GCC = xyes; then
577 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
579 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
582 # Avoid gnulib's tests for O_NOATIME and O_NOFOLLOW, as we don't use them.
583 AC_DEFUN([gl_FCNTL_O_FLAGS])
584 # Avoid gnulib's threadlib module, as we do threads our own way.
585 AC_DEFUN([gl_THREADLIB])
587 # Initialize gnulib right after choosing the compiler.
588 dnl Amongst other things, this sets AR and ARFLAGS.
591 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
592 # if -g3 works and the user does not specify CFLAGS.
593 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
594 if test "$ac_test_CFLAGS" != set; then
597 emacs_g3_CFLAGS='-g3';;
599 emacs_g3_CFLAGS='-g3 -O2';;
603 if test -n "$emacs_g3_CFLAGS"; then
604 emacs_save_CFLAGS=$CFLAGS
605 CFLAGS=$emacs_g3_CFLAGS
606 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
607 [emacs_cv_prog_cc_g3],
608 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
609 [emacs_cv_prog_cc_g3=yes],
610 [emacs_cv_prog_cc_g3=no])])
611 if test $emacs_cv_prog_cc_g3 = yes; then
612 CFLAGS=$emacs_g3_CFLAGS
614 CFLAGS=$emacs_save_CFLAGS
619 AC_ARG_ENABLE([gcc-warnings],
620 [AS_HELP_STRING([--enable-gcc-warnings],
621 [turn on lots of GCC warnings. This is intended for
622 developers, and may generate false alarms when used
623 with older or non-GNU development tools.])],
626 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
628 gl_gcc_warnings=$enableval],
632 AC_ARG_ENABLE(link-time-optimization,
633 [AS_HELP_STRING([--enable-link-time-optimization],
634 [build emacs with link-time optimization.
635 This is supported only for GCC since 4.5.0.])],
636 if test "${enableval}" != "no"; then
637 AC_MSG_CHECKING([whether link-time optimization is supported])
639 if test x$GCC = xyes; then
640 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
641 if test x$CPUS != x; then
647 CFLAGS="$CFLAGS $LTO"
648 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
649 [ac_lto_supported=yes], [ac_lto_supported=no])
652 AC_MSG_RESULT([$ac_lto_supported])
653 if test "$ac_lto_supported" = "yes"; then
654 CFLAGS="$CFLAGS $LTO"
658 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
659 # ------------------------------------------------
660 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
661 # Otherwise, run RUN-IF-NOT-FOUND.
662 AC_DEFUN([gl_GCC_VERSION_IFELSE],
666 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
669 # error "your version of gcc is older than $1.$2"
676 # When compiling with GCC, prefer -isystem to -I when including system
677 # include files, to avoid generating useless diagnostics for the files.
678 if test "$gl_gcc_warnings" != yes; then
683 # This, $nw, is the list of warnings we disable.
686 case $with_x_toolkit in
687 lucid | athena | motif)
688 # Old toolkits mishandle 'const'.
689 nw="$nw -Wwrite-strings"
692 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
695 AC_SUBST([WERROR_CFLAGS])
697 nw="$nw -Waggregate-return" # anachronistic
698 nw="$nw -Wlong-long" # C90 is anachronistic
699 nw="$nw -Wc++-compat" # We don't care about C++ compilers
700 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
701 nw="$nw -Wtraditional" # Warns on #elif which we use often
702 nw="$nw -Wcast-qual" # Too many warnings for now
703 nw="$nw -Wconversion" # Too many warnings for now
704 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
705 nw="$nw -Wsign-conversion" # Too many warnings for now
706 nw="$nw -Woverlength-strings" # Not a problem these days
707 nw="$nw -Wtraditional-conversion" # Too many warnings for now
708 nw="$nw -Wunreachable-code" # so buggy that it's now silently ignored
709 nw="$nw -Wpadded" # Our structs are not padded
710 nw="$nw -Wredundant-decls" # we regularly (re)declare functions
711 nw="$nw -Wlogical-op" # any use of fwrite provokes this
712 nw="$nw -Wformat-nonliteral" # we do this a lot
713 nw="$nw -Wvla" # warnings in gettext.h
714 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
715 nw="$nw -Wswitch-enum" # Too many warnings for now
716 nw="$nw -Wswitch-default" # Too many warnings for now
717 nw="$nw -Wfloat-equal" # warns about high-quality code
718 nw="$nw -Winline" # OK to ignore 'inline'
719 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
720 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
721 # signed overflow has undefined behavior
722 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
723 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
725 # Emacs doesn't care about shadowing; see
726 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
729 # The following line should be removable at some point.
730 nw="$nw -Wsuggest-attribute=pure"
732 AC_MSG_CHECKING([whether to use -Wstack-protector])
735 [[#if (1 <= __LONG_MAX__ >> 31 >> 31 \
736 && 4 < __GNUC__ + (7 < __GNUC_MINOR__ + (2 <= __GNUC_PATCHLEVEL__)))
739 #error "Not GCC, or GCC before 4.7.2, or 'long int' has < 64 bits."
742 [AC_MSG_RESULT(yes)],
744 nw="$nw -Wstack-protector"])
746 gl_MANYWARN_ALL_GCC([ws])
747 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
751 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
752 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
753 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
754 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
755 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
756 gl_WARN_ADD([-Wno-format-nonliteral])
758 # In spite of excluding -Wlogical-op above, it is enabled, as of
759 # gcc 4.5.0 20090517.
760 gl_WARN_ADD([-Wno-logical-op])
762 gl_WARN_ADD([-fdiagnostics-show-option])
763 gl_WARN_ADD([-funit-at-a-time])
765 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
766 AH_VERBATIM([FORTIFY_SOURCE],
767 [/* Enable compile-time and run-time bounds-checking, and some warnings,
768 without upsetting glibc 2.15+. */
769 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
770 # define _FORTIFY_SOURCE 2
773 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
775 # We use a slightly smaller set of warning options for lib/.
776 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
778 nw="$nw -Wunused-macros"
780 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
781 AC_SUBST([GNULIB_WARN_CFLAGS])
786 dnl Some other nice autoconf tests.
787 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
790 dnl if test "x$RANLIB" = x; then
795 AC_PATH_PROG(INSTALL_INFO, install-info, :,
796 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
797 dnl Don't use GZIP, which is used by gzip for additional parameters.
798 AC_PATH_PROG(GZIP_PROG, gzip)
800 if test $opsys = gnu-linux; then
801 AC_PATH_PROG(PAXCTL, paxctl,,
802 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
803 if test "X$PAXCTL" != X; then
804 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
805 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
806 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
807 else AC_MSG_RESULT(no); PAXCTL=""; fi])
811 ## Need makeinfo >= 4.7 (?) to build the manuals.
812 AC_PATH_PROG(MAKEINFO, makeinfo, no)
813 dnl By this stage, configure has already checked for egrep and set EGREP,
814 dnl or exited with an error if no egrep was found.
815 if test "$MAKEINFO" != "no"; then
817 $MAKEINFO --version 2> /dev/null |
818 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
824 ## Makeinfo is unusual. For a released Emacs, the manuals are
825 ## pre-built, and not deleted by the normal clean rules. makeinfo is
826 ## therefore in the category of "special tools" not normally required, which
827 ## configure does not have to check for (eg autoconf itself).
828 ## In a Bazaar checkout on the other hand, the manuals are not included.
829 ## So makeinfo is a requirement to build from Bazaar, and configure
830 ## should test for it as it does for any other build requirement.
831 ## We use the presence of $srcdir/info/emacs to distinguish a release,
832 ## with pre-built manuals, from a Bazaar checkout.
835 if test "$MAKEINFO" = "no"; then
837 if test "x${with_makeinfo}" = "xno"; then
839 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
840 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
841 source tree does not seem to have pre-built manuals in the `info' directory.
842 Either install a suitable version of makeinfo, or re-run configure
843 with the `--without-makeinfo' option to build without the manuals.] )
846 AC_SUBST(HAVE_MAKEINFO)
848 dnl Just so that there is only a single place we need to edit.
854 dnl Add our options to ac_link now, after it is set up.
856 if test x$GCC = xyes; then
857 test "x$GCC_LINK_TEST_OPTIONS" != x && \
858 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
860 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
861 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
864 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
865 dnl If we can link with the flag, it shouldn't do any harm anyhow.
866 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
867 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
868 dnl if not built to support GNU ld.
870 late_LDFLAGS=$LDFLAGS
871 if test x$GCC = xyes; then
872 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
874 LDFLAGS="$LDFLAGS -znocombreloc"
877 AC_MSG_CHECKING([for -znocombreloc])
878 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
879 [AC_MSG_RESULT(yes)],
880 LDFLAGS=$late_LDFLAGS
884 dnl The function dump-emacs will not be defined and temacs will do
885 dnl (load "loadup") automatically unless told otherwise.
886 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
888 your-opsys-here) CANNOT_DUMP=yes ;;
891 test "$CANNOT_DUMP" = "yes" && \
892 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
894 AC_SUBST(CANNOT_DUMP)
899 # MSDOS uses unexcoff.o
900 # MSWindows uses unexw32.o
908 UNEXEC_OBJ=unexmacosx.o
911 UNEXEC_OBJ=unexhp9k800.o
914 # Use the Solaris dldump() function, called from unexsol.c, to dump
915 # emacs, instead of the generic ELF dump code found in unexelf.c.
916 # The resulting binary has a complete symbol table, and is better
917 # for debugging and other observability tools (debuggers, pstack, etc).
919 # If you encounter a problem using dldump(), please consider sending
920 # a message to the OpenSolaris tools-linking mailing list:
921 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
923 # It is likely that dldump() works with older Solaris too, but this has
924 # not been tested, so for now this change is for Solaris 10 or newer.
932 ## Let `ld' find image libs and similar things in /usr/local/lib.
933 ## The system compiler, GCC, has apparently been modified to not
934 ## look there, contrary to what a stock GCC would do.
935 ### It's not our place to do this. See bug#10313#17.
936 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
941 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
942 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
946 ### It's not our place to do this. See bug#10313#17.
947 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
952 ## Han Boetes <han@mijncomputer.nl> says this is necessary,
953 ## otherwise Emacs dumps core on elf systems.
954 LD_SWITCH_SYSTEM="-Z"
957 AC_SUBST(LD_SWITCH_SYSTEM)
959 ac_link="$ac_link $LD_SWITCH_SYSTEM"
961 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
962 ## which has not been defined yet. When this was handled with cpp,
963 ## it was expanded to null when configure sourced the s/*.h file.
964 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
965 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
966 ## (or somesuch), but because it is supposed to go at the _front_
967 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
968 ## Compare with the gnu-linux case below, which added to the end
969 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
970 ## LD_SWITCH_SYSTEM_TEMACS.
973 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
980 AC_CHECK_DECL([__ELF__])
981 if test "$ac_cv_have_decl___ELF__" = "yes"; then
982 ## With ELF, make sure that all common symbols get allocated to in the
983 ## data section. Otherwise, the dump of temacs may miss variables in
984 ## the shared library that have been initialized. For example, with
985 ## GNU libc, __malloc_initialized would normally be resolved to the
986 ## shared library's .bss section, which is fatal.
987 if test "x$GCC" = "xyes"; then
988 C_SWITCH_MACHINE="-fno-common"
990 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
993 UNEXEC_OBJ=unexalpha.o
997 AC_SUBST(C_SWITCH_MACHINE)
1002 ## Some programs in src produce warnings saying certain subprograms
1003 ## are too complex and need a MAXMEM value greater than 2000 for
1004 ## additional optimization. --nils@exp-math.uni-essen.de
1005 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1006 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1007 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1008 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1009 AC_SUBST(C_SWITCH_SYSTEM)
1014 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1015 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1017 freebsd) LIBS_SYSTEM="-lutil" ;;
1019 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1021 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1023 ## Motif needs -lgen.
1024 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1026 AC_SUBST(LIBS_SYSTEM)
1029 ### Make sure subsequent tests use flags consistent with the build flags.
1031 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1032 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1034 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1037 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1038 AC_DEFUN([AC_TYPE_SIZE_T])
1039 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1040 AC_DEFUN([AC_TYPE_UID_T])
1046 dnl Current possibilities handled by sed (aix4-2 -> aix,
1047 dnl gnu-linux -> gnu/linux, etc.):
1048 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1049 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1050 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1052 dnl NB do not use CRT_DIR unquoted here, since it might not be set yet.
1056 START_FILES='pre-crt0.o'
1059 ## Adding -lm confuses the dynamic linker, so omit it.
1061 START_FILES='pre-crt0.o'
1064 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1065 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1066 SYSTEM_TYPE=berkeley-unix
1068 gnu-linux | gnu-kfreebsd )
1069 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtn.o'
1070 START_FILES='pre-crt0.o $(CRT_DIR)/crt1.o $(CRT_DIR)/crti.o'
1072 hpux10-20 | hpux11 )
1074 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o'
1076 dnl NB this may be adjusted below.
1078 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o'
1079 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crtbegin.o'
1080 SYSTEM_TYPE=berkeley-unix
1084 SYSTEM_TYPE=usg-unix-v
1090 AC_SUBST(START_FILES)
1091 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1092 [The type of system you are compiling for; sets `system-type'.])
1094 dnl Not all platforms use crtn.o files. Check if the current one does.
1097 for file in x $LIB_STANDARD $START_FILES; do
1099 *CRT_DIR*) crt_files="$crt_files `echo $file | sed -e 's|.*/||'`" ;;
1103 if test "x$crt_files" != x; then
1105 ## If user specified a crt-dir, use that unconditionally.
1108 if test "X$CRT_DIR" = "X"; then
1110 CRT_DIR=/usr/lib # default
1112 case "$canonical" in
1113 x86_64-*-linux-gnu* | s390x-*-linux-gnu*)
1114 ## On x86-64 and s390x GNU/Linux distributions, the standard library
1115 ## can be in a variety of places. We only try /usr/lib64 and /usr/lib.
1116 ## For anything else (eg /usr/lib32), it is up the user to specify
1117 ## the location (bug#5655).
1118 ## Test for crtn.o, not just the directory, because sometimes the
1119 ## directory exists but does not have the relevant files (bug#1287).
1120 ## FIXME better to test for binary compatibility somehow.
1121 test -e /usr/lib64/crtn.o && CRT_DIR=/usr/lib64
1124 powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*) CRT_DIR=/usr/lib64 ;;
1128 hpux10-20) CRT_DIR=/lib ;;
1131 test "x${GCC}" = xyes && crt_gcc=yes
1137 for file in $crt_files; do
1139 ## If we're using gcc, try to determine it automatically by asking
1140 ## gcc. [If this doesn't work, CRT_DIR will remain at the
1141 ## system-dependent default from above.]
1142 if test $crt_gcc = yes && test ! -e $CRT_DIR/$file; then
1144 crt_file=`$CC --print-file-name=$file 2>/dev/null`
1147 CRT_DIR=`AS_DIRNAME(["$crt_file"])`
1152 dnl We expect all the files to be in a single directory, so after the
1153 dnl first there is no point asking gcc.
1156 test -e $CRT_DIR/$file || crt_missing="$crt_missing $file"
1159 test "x$crt_missing" = x || \
1160 AC_MSG_ERROR([Required file(s) not found:$crt_missing
1161 Try using the --with-crt-dir option.])
1163 fi # crt_files != ""
1169 if test -f $CRT_DIR/crti.o; then
1171 test -f $CRT_DIR/crtn.o || \
1172 AC_MSG_ERROR([Required file not found: crtn.o])
1174 LIB_STANDARD='-lgcc -lc -lgcc $(CRT_DIR)/crtend.o $(CRT_DIR)/crtn.o'
1175 START_FILES='pre-crt0.o $(CRT_DIR)/crt0.o $(CRT_DIR)/crti.o $(CRT_DIR)/crtbegin.o'
1181 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1182 pre_PKG_CONFIG_LIBS=$LIBS
1184 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1186 dnl This function definition taken from Gnome 2.0
1187 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1188 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1189 dnl also defines GSTUFF_PKG_ERRORS on error
1190 AC_DEFUN([PKG_CHECK_MODULES], [
1193 if test "$PKG_CONFIG" = "no" ; then
1194 ifelse([$4], , [AC_MSG_ERROR([
1195 *** 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.])], [$4])
1197 PKG_CONFIG_MIN_VERSION=0.9.0
1198 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1199 AC_MSG_CHECKING(for $2)
1201 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1202 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1203 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1210 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1211 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1212 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1218 ## If we have a custom action on failure, don't print errors, but
1219 ## do set a variable so people can do so. Do it in a subshell
1220 ## to capture any diagnostics in invoking pkg-config.
1221 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1222 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1228 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1229 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1233 if test $succeeded = yes; then
1234 ifelse([$3], , :, [$3])
1236 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])
1241 if test "${with_sound}" != "no"; then
1242 # Sound support for GNU/Linux and the free BSDs.
1243 AC_CHECK_HEADERS(machine/soundcard.h sys/soundcard.h soundcard.h,
1244 have_sound_header=yes)
1245 # Emulation library used on NetBSD.
1246 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1250 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1251 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1252 if test $HAVE_ALSA = yes; then
1253 SAVE_CFLAGS="$CFLAGS"
1255 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1256 LIBS="$ALSA_LIBS $LIBS"
1257 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1258 emacs_alsa_normal=yes,
1259 emacs_alsa_normal=no)
1260 if test "$emacs_alsa_normal" != yes; then
1261 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1262 [[snd_lib_error_set_handler (0);]])],
1263 emacs_alsa_subdir=yes,
1264 emacs_alsa_subdir=no)
1265 if test "$emacs_alsa_subdir" != yes; then
1266 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1268 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1271 CFLAGS="$SAVE_CFLAGS"
1273 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1274 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1275 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1278 dnl Define HAVE_SOUND if we have sound support. We know it works and
1279 dnl compiles only on the specified platforms. For others, it
1280 dnl probably doesn't make sense to try.
1281 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1283 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1284 gnu-linux|freebsd|netbsd)
1285 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1290 AC_SUBST(CFLAGS_SOUND)
1293 dnl checks for header files
1294 AC_CHECK_HEADERS_ONCE(
1295 linux/version.h sys/systeminfo.h
1297 sys/vlimit.h sys/resource.h
1298 sys/utsname.h pwd.h utmp.h util.h)
1300 AC_MSG_CHECKING(if personality LINUX32 can be set)
1301 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1302 emacs_cv_personality_linux32=yes,
1303 emacs_cv_personality_linux32=no)
1304 AC_MSG_RESULT($emacs_cv_personality_linux32)
1306 if test $emacs_cv_personality_linux32 = yes; then
1307 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1308 [Define to 1 if personality LINUX32 can be set.])
1311 dnl On Solaris 8 there's a compilation warning for term.h because
1312 dnl it doesn't define `bool'.
1313 AC_CHECK_HEADERS(term.h, , , -)
1315 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1317 if test $ac_cv_have_decl_sys_siglist != yes; then
1318 # For Tru64, at least:
1319 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1321 if test $ac_cv_have_decl___sys_siglist = yes; then
1322 AC_DEFINE(sys_siglist, __sys_siglist,
1323 [Define to any substitute for sys_siglist.])
1328 dnl Check for speed_t typedef.
1329 AC_CACHE_CHECK(for speed_t, emacs_cv_speed_t,
1330 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <termios.h>]], [[speed_t x = 1;]])],
1331 emacs_cv_speed_t=yes, emacs_cv_speed_t=no)])
1332 if test $emacs_cv_speed_t = yes; then
1333 AC_DEFINE(HAVE_SPEED_T, 1,
1334 [Define to 1 if `speed_t' is declared by <termios.h>.])
1337 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1338 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1339 #if HAVE_SYS_SOCKET_H
1340 #include <sys/socket.h>
1342 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1343 #if HAVE_SYS_SOCKET_H
1344 #include <sys/socket.h>
1346 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1347 #if HAVE_SYS_SOCKET_H
1348 #include <sys/socket.h>
1351 dnl checks for structure members
1352 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1353 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1354 struct ifreq.ifr_addr,
1355 struct ifreq.ifr_addr.sa_len], , ,
1356 [AC_INCLUDES_DEFAULT
1357 #if HAVE_SYS_SOCKET_H
1358 #include <sys/socket.h>
1364 dnl Check for endianness.
1365 dnl AC_C_BIGENDIAN is done by gnulib.
1367 dnl check for Make feature
1368 dnl AC_PROG_MAKE_SET is done by Automake.
1373 dnl check for GNU Make if we have GCC and autodepend is on.
1374 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1375 AC_MSG_CHECKING([whether we are using GNU Make])
1377 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1378 if test "x$testval" != x; then
1381 ac_enable_autodepend=no
1383 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1384 if test $HAVE_GNU_MAKE = yes; then
1385 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1386 SAVE_CFLAGS="$CFLAGS"
1387 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1388 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1389 CFLAGS="$SAVE_CFLAGS"
1390 test -f deps.d || ac_enable_autodepend=no
1392 AC_MSG_RESULT([$ac_enable_autodepend])
1394 if test $ac_enable_autodepend = yes; then
1395 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1396 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1397 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1398 deps_frag=autodeps.mk
1401 deps_frag=$srcdir/src/$deps_frag
1404 AC_SUBST_FILE(deps_frag)
1407 lisp_frag=$srcdir/src/lisp.mk
1408 AC_SUBST_FILE(lisp_frag)
1411 dnl checks for operating system services
1412 AC_SYS_LONG_FILE_NAMES
1414 #### Choose a window system.
1416 ## We leave window_system equal to none if
1417 ## we end up building without one. Any new window system should
1418 ## set window_system to an appropriate value and add objects to
1419 ## window-system-specific substs.
1423 if test "$no_x" != yes; then
1427 LD_SWITCH_X_SITE_RPATH=
1428 if test "${x_libraries}" != NONE; then
1429 if test -n "${x_libraries}"; then
1430 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1431 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1433 x_default_search_path=""
1434 x_search_path=${x_libraries}
1435 if test -z "${x_search_path}"; then
1436 x_search_path=/usr/lib
1438 for x_library in `echo ${x_search_path}: | \
1439 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1441 ${x_library}/X11/%L/%T/%N%C%S:\
1442 ${x_library}/X11/%l/%T/%N%C%S:\
1443 ${x_library}/X11/%T/%N%C%S:\
1444 ${x_library}/X11/%L/%T/%N%S:\
1445 ${x_library}/X11/%l/%T/%N%S:\
1446 ${x_library}/X11/%T/%N%S"
1447 if test x"${x_default_search_path}" = x; then
1448 x_default_search_path=${x_search_path}
1450 x_default_search_path="${x_search_path}:${x_default_search_path}"
1454 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1456 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1457 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1460 if test x"${x_includes}" = x; then
1461 bitmapdir=/usr/include/X11/bitmaps
1463 # accumulate include directories that have X11 bitmap subdirectories
1465 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1466 if test -d "${bmd}/X11/bitmaps"; then
1467 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1469 if test -d "${bmd}/bitmaps"; then
1470 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1473 if test ${bmd_acc} != "dummyval"; then
1474 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1481 tmp_CPPFLAGS="$CPPFLAGS"
1482 tmp_CFLAGS="$CFLAGS"
1483 CPPFLAGS="$CPPFLAGS -x objective-c"
1484 CFLAGS="$CFLAGS -x objective-c"
1485 TEMACS_LDFLAGS2="\${LDFLAGS}"
1487 if test "${with_ns}" != no; then
1488 if test "${opsys}" = darwin; then
1490 ns_appdir=`pwd`/nextstep/Emacs.app
1491 ns_appbindir=${ns_appdir}/Contents/MacOS
1492 ns_appresdir=${ns_appdir}/Contents/Resources
1493 ns_appsrc=Cocoa/Emacs.base
1494 elif test -f $GNUSTEP_CONFIG_FILE; then
1496 ns_appdir=`pwd`/nextstep/Emacs.app
1497 ns_appbindir=${ns_appdir}
1498 ns_appresdir=${ns_appdir}/Resources
1499 ns_appsrc=GNUstep/Emacs.base
1500 dnl FIXME sourcing this several times in subshells seems inefficient.
1501 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1502 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1503 dnl I seemed to need these as well with GNUstep-startup 0.25.
1504 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1505 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1506 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1507 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1508 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1509 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1510 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1511 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1512 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1516 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1517 dnl If they had chosen to either define it or not, we could have
1518 dnl just used AC_CHECK_DECL here.
1519 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1520 emacs_cv_objc_exceptions,
1521 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1522 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1526 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1527 if test $emacs_cv_objc_exceptions = yes; then
1528 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1529 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1530 [Define if GNUstep uses ObjC exceptions.])
1531 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1535 dnl This is only used while we test the NS headers, it gets reset below.
1536 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1538 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1539 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1540 files are missing or cannot be compiled.])])
1542 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1544 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1545 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1548 #error "OSX 10.4 or newer required"
1552 ns_osx_have_104=yes,
1554 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1556 ns_have_nsinteger=yes,
1557 ns_have_nsinteger=no)
1558 if test $ns_osx_have_104 = no; then
1559 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1561 if test $ns_have_nsinteger = yes; then
1562 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1566 AC_SUBST(TEMACS_LDFLAGS2)
1568 INSTALL_ARCH_INDEP_EXTRA=install-etc
1569 ns_self_contained=no
1572 if test "${HAVE_NS}" = yes; then
1573 if test "$with_toolkit_scroll_bars" = "no"; then
1574 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1577 window_system=nextstep
1578 # set up packaging dirs
1579 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1580 ns_self_contained=yes
1581 prefix=${ns_appresdir}
1582 exec_prefix=${ns_appbindir}
1583 dnl This one isn't really used, only archlibdir is.
1584 libexecdir="\${ns_appbindir}/libexec"
1585 archlibdir="\${ns_appbindir}/libexec"
1586 docdir="\${ns_appresdir}/etc"
1587 etcdir="\${ns_appresdir}/etc"
1588 dnl FIXME maybe set datarootdir instead.
1589 dnl That would also get applications, icons, man.
1590 infodir="\${ns_appresdir}/info"
1591 mandir="\${ns_appresdir}/man"
1592 lispdir="\${ns_appresdir}/lisp"
1593 leimdir="\${ns_appresdir}/leim"
1594 INSTALL_ARCH_INDEP_EXTRA=
1596 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1598 CFLAGS="$tmp_CFLAGS"
1599 CPPFLAGS="$tmp_CPPFLAGS"
1600 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1601 AC_SUBST(ns_self_contained)
1603 AC_SUBST(NS_OBJC_OBJ)
1604 AC_SUBST(LIB_STANDARD)
1611 if test "${with_w32}" != no; then
1612 if test "${opsys}" != "cygwin"; then
1613 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin.])
1615 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1616 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1617 cannot be found.])])
1618 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1619 AC_CHECK_TOOL(WINDRES, [windres],
1620 [AC_MSG_ERROR([No resource compiler found.])])
1621 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1622 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1623 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1624 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1626 # Tell the linker that emacs.res is an object (which we compile from
1627 # the rc file), not a linker script.
1628 W32_RES_LINK="-Wl,-bpe-i386 -Wl,emacs.res"
1633 AC_SUBST(W32_RES_LINK)
1635 if test "${HAVE_W32}" = "yes"; then
1640 ## $window_system is now set to the window system we will
1648 case "${window_system}" in
1653 case "${with_x_toolkit}" in
1654 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1655 motif ) USE_X_TOOLKIT=MOTIF ;;
1657 term_header=gtkutil.h
1658 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1659 dnl USE_X_TOOLKIT is set.
1660 USE_X_TOOLKIT=none ;;
1661 gtk2 ) with_gtk2=yes
1662 term_header=gtkutil.h
1663 USE_X_TOOLKIT=none ;;
1664 gtk3 ) with_gtk3=yes
1665 term_header=gtkutil.h
1666 USE_X_TOOLKIT=none ;;
1667 no ) USE_X_TOOLKIT=none ;;
1668 dnl If user did not say whether to use a toolkit, make this decision later:
1669 dnl use the toolkit if we have gtk, or X11R5 or newer.
1670 * ) USE_X_TOOLKIT=maybe ;;
1674 term_header=nsterm.h
1677 term_header=w32term.h
1681 if test -n "${term_header}"; then
1682 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
1683 [Define to the header for the built-in window system.])
1686 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1687 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1688 if test "$HAVE_XSERVER" = true ||
1689 test -n "$DISPLAY" ||
1690 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1691 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1692 were found. You should install the relevant development files for X
1693 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1694 sure you have development files for image handling, i.e.
1695 tiff, gif, jpeg, png and xpm.
1696 If you are sure you want Emacs compiled without X window support, pass
1702 ### If we're using X11, we should use the X menu package.
1705 yes ) HAVE_MENUS=yes ;;
1708 # Does the opsystem file prohibit the use of the GNU malloc?
1709 # Assume not, until told otherwise.
1713 [whether malloc is Doug Lea style],
1714 [emacs_cv_var_doug_lea_malloc],
1717 [[#include <malloc.h>
1718 static void hook (void) {}]],
1719 [[malloc_set_state (malloc_get_state ());
1720 __after_morecore_hook = hook;
1721 __malloc_initialize_hook = hook;]])],
1722 [emacs_cv_var_doug_lea_malloc=yes],
1723 [emacs_cv_var_doug_lea_malloc=no])])
1724 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1727 dnl See comments in aix4-2.h about maybe using system malloc there.
1730 ## darwin ld insists on the use of malloc routines in the System framework.
1731 darwin|sol2-10) system_malloc=yes ;;
1734 if test "${system_malloc}" = "yes"; then
1735 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1738 (The GNU allocators don't work with this system configuration.)"
1742 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1743 VMLIMIT_OBJ=vm-limit.o
1745 AC_SUBST(GMALLOC_OBJ)
1746 AC_SUBST(VMLIMIT_OBJ)
1748 if test "$doug_lea_malloc" = "yes" ; then
1749 if test "$GNU_MALLOC" = yes ; then
1751 (Using Doug Lea's new malloc from the GNU C Library.)"
1753 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1754 [Define to 1 if you are using the GNU C Library.])
1756 ## Use mmap directly for allocating larger buffers.
1757 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1758 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1759 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1761 gnu*) REL_ALLOC=no ;;
1765 if test x"${REL_ALLOC}" = x; then
1766 REL_ALLOC=${GNU_MALLOC}
1769 use_mmap_for_buffers=no
1771 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1775 if test $use_mmap_for_buffers = yes; then
1776 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1780 LIBS="$LIBS_SYSTEM $LIBS"
1782 dnl If found, this defines HAVE_LIBDNET, which m/pmax.h checks,
1783 dnl and also adds -ldnet to LIBS, which Autoconf uses for checks.
1784 AC_CHECK_LIB(dnet, dnet_ntoa)
1785 dnl This causes -lresolv to get used in subsequent tests,
1786 dnl which causes failures on some systems such as HPUX 9.
1787 dnl AC_CHECK_LIB(resolv, gethostbyname)
1789 dnl FIXME replace main with a function we actually want from this library.
1790 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1792 dnl Check if pthreads is available.
1794 AC_CHECK_HEADERS_ONCE(pthread.h)
1795 if test "$ac_cv_header_pthread_h"; then
1796 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1797 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1798 dnl testing for pthread_self if Emacs uses gmalloc.c.
1799 if test "$GMALLOC_OBJ" = gmalloc.o; then
1800 emacs_pthread_function=pthread_atfork
1802 emacs_pthread_function=pthread_self
1804 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1806 if test "$HAVE_PTHREAD" = yes; then
1807 case "${canonical}" in
1809 *) LIB_PTHREAD="-lpthread"
1810 LIBS="$LIB_PTHREAD $LIBS" ;;
1812 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1814 AC_SUBST([LIB_PTHREAD])
1816 AC_CHECK_LIB(pthreads, cma_open)
1818 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1819 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1820 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1821 ## added to LIBS in configure would never contain the pthreads part,
1822 ## but the value used in Makefiles might. FIXME?
1824 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1825 ## be harmless on older versions of X where it happens to exist.
1826 test "$opsys" = "aix4-2" && \
1827 test $ac_cv_lib_pthreads_cma_open = yes && \
1828 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1830 dnl Check for need for bigtoc support on IBM AIX
1834 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1836 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1837 *) gdb_cv_bigtoc=-bbigtoc ;;
1840 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1841 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1846 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1847 # used for the tests that follow. We set them back to REAL_CFLAGS and
1848 # REAL_CPPFLAGS later on.
1850 REAL_CFLAGS="$CFLAGS"
1851 REAL_CPPFLAGS="$CPPFLAGS"
1853 if test "${HAVE_X11}" = "yes"; then
1854 DEFS="$C_SWITCH_X_SITE $DEFS"
1855 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1857 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1858 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1860 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1861 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1862 # but it's more convenient here to set LD_RUN_PATH since this
1863 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1864 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1865 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1869 if test "${opsys}" = "gnu-linux"; then
1870 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1871 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1872 [[XOpenDisplay ("foo");]])],
1873 [xgnu_linux_first_failure=no],
1874 [xgnu_linux_first_failure=yes])
1875 if test "${xgnu_linux_first_failure}" = "yes"; then
1876 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1877 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1878 OLD_CPPFLAGS="$CPPFLAGS"
1880 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1881 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1882 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1883 LIBS="$LIBS -b i486-linuxaout"
1884 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1885 [[XOpenDisplay ("foo");]])],
1886 [xgnu_linux_second_failure=no],
1887 [xgnu_linux_second_failure=yes])
1888 if test "${xgnu_linux_second_failure}" = "yes"; then
1889 # If we get the same failure with -b, there is no use adding -b.
1890 # So take it out. This plays safe.
1891 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
1892 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
1893 CPPFLAGS="$OLD_CPPFLAGS"
1904 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
1905 # header files included from there.
1906 AC_MSG_CHECKING(for Xkb)
1907 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
1908 #include <X11/XKBlib.h>]],
1909 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
1910 emacs_xkb=yes, emacs_xkb=no)
1911 AC_MSG_RESULT($emacs_xkb)
1912 if test $emacs_xkb = yes; then
1913 AC_DEFINE(HAVE_XKBGETKEYBOARD, 1, [Define to 1 if you have the XkbGetKeyboard function.])
1916 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
1917 XScreenNumberOfScreen)
1920 if test "${window_system}" = "x11"; then
1921 AC_MSG_CHECKING(X11 version 6)
1922 AC_CACHE_VAL(emacs_cv_x11_version_6,
1923 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
1924 [[#if XlibSpecificationRelease < 6
1927 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
1928 if test $emacs_cv_x11_version_6 = yes; then
1929 AC_MSG_RESULT(6 or newer)
1930 AC_DEFINE(HAVE_X11R6, 1,
1931 [Define to 1 if you have the X11R6 or newer version of Xlib.])
1932 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
1933 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
1937 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
1938 [Define if you have usable X11R6-style XIM support.])
1942 AC_MSG_RESULT(before 6)
1947 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
1949 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
1950 if test "${with_rsvg}" != "no"; then
1951 RSVG_REQUIRED=2.11.0
1952 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
1954 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
1955 AC_SUBST(RSVG_CFLAGS)
1958 if test $HAVE_RSVG = yes; then
1959 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
1960 CFLAGS="$CFLAGS $RSVG_CFLAGS"
1961 LIBS="$RSVG_LIBS $LIBS"
1967 if test "${HAVE_X11}" = "yes"; then
1968 if test "${with_imagemagick}" != "no"; then
1969 ## 6.2.8 is the earliest version known to work, but earlier versions
1970 ## might work - let us know if you find one.
1971 ## 6.0.7 does not work. See bug#7955.
1972 IMAGEMAGICK_MODULE="Wand >= 6.2.8"
1973 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
1974 AC_SUBST(IMAGEMAGICK_CFLAGS)
1975 AC_SUBST(IMAGEMAGICK_LIBS)
1977 if test $HAVE_IMAGEMAGICK = yes; then
1978 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
1979 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
1980 LIBS="$IMAGEMAGICK_LIBS $LIBS"
1981 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
1991 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
1994 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
1996 dnl Checks for libraries.
1997 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
1998 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
1999 AC_MSG_ERROR($GTK_PKG_ERRORS)
2001 if test "$pkg_check_gtk" = "yes"; then
2002 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2003 GTK_OBJ=emacsgtkfixed.o
2004 term_header=gtkutil.h
2005 USE_GTK_TOOLKIT="GTK3"
2008 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2012 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2015 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2017 dnl Checks for libraries.
2018 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2019 if test "$pkg_check_gtk" = "no" &&
2020 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2022 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2024 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2027 if test x"$pkg_check_gtk" = xyes; then
2029 AC_SUBST(GTK_CFLAGS)
2031 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2032 CFLAGS="$CFLAGS $GTK_CFLAGS"
2033 LIBS="$GTK_LIBS $LIBS"
2034 dnl Try to compile a simple GTK program.
2036 AC_CHECK_FUNCS(gtk_main, GTK_COMPILES=yes)
2037 if test "${GTK_COMPILES}" != "yes"; then
2038 if test "$USE_X_TOOLKIT" != "maybe"; then
2039 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2043 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2044 GTK_OBJ="gtkutil.o $GTK_OBJ"
2046 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2049 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2050 closing open displays. This is no problem if you just use
2051 one display, but if you use more than one and close one of them
2061 if test "${HAVE_GTK}" = "yes"; then
2063 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2064 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2065 if test "$with_toolkit_scroll_bars" != no; then
2066 with_toolkit_scroll_bars=yes
2069 dnl Check if we have the old file selection dialog declared and
2070 dnl in the link library. In 2.x it may be in the library,
2071 dnl but not declared if deprecated featured has been selected out.
2072 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2073 HAVE_GTK_FILE_SELECTION=no
2074 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2075 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2076 #include <gtk/gtk.h>])
2077 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2078 AC_CHECK_FUNCS(gtk_file_selection_new)
2082 dnl Check for functions introduced in 2.14 and later.
2083 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2084 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2085 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2086 gtk_orientable_set_orientation \
2087 gtk_window_set_has_resize_grip)
2089 term_header=gtkutil.h
2092 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2093 dnl other platforms.
2096 if test "${with_dbus}" = "yes"; then
2097 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2098 if test "$HAVE_DBUS" = yes; then
2099 LIBS="$LIBS $DBUS_LIBS"
2100 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2101 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2102 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2104 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2105 dbus_type_is_valid \
2106 dbus_validate_bus_name \
2107 dbus_validate_path \
2108 dbus_validate_interface \
2109 dbus_validate_member)
2115 dnl GSettings has been tested under GNU/Linux only.
2117 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2118 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2119 if test "$HAVE_GSETTINGS" = "yes"; then
2120 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2121 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2122 SETTINGS_LIBS="$GSETTINGS_LIBS"
2126 dnl GConf has been tested under GNU/Linux only.
2127 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2129 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2130 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2131 if test "$HAVE_GCONF" = yes; then
2132 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2133 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2134 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2135 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2139 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2140 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2141 if test "$HAVE_GOBJECT" = "yes"; then
2142 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2143 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2145 SAVE_CFLAGS="$CFLAGS"
2147 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2148 LIBS="$SETTINGS_LIBS $LIBS"
2149 AC_CHECK_FUNCS([g_type_init])
2150 CFLAGS="$SAVE_CFLAGS"
2153 AC_SUBST(SETTINGS_CFLAGS)
2154 AC_SUBST(SETTINGS_LIBS)
2157 dnl SELinux is available for GNU/Linux only.
2160 if test "${with_selinux}" = "yes"; then
2161 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2162 if test "$HAVE_LIBSELINUX" = yes; then
2163 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2164 LIBSELINUX_LIBS=-lselinux
2167 AC_SUBST(LIBSELINUX_LIBS)
2170 HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=no
2171 if test "${with_gnutls}" = "yes" ; then
2172 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2173 if test "${HAVE_GNUTLS}" = "yes"; then
2174 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2177 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2178 LIBS="$LIBGNUTLS_LIBS $LIBS"
2179 AC_CHECK_FUNCS(gnutls_certificate_set_verify_function, HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY=yes)
2181 if test "${HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY}" = "yes"; then
2182 AC_DEFINE(HAVE_GNUTLS_CALLBACK_CERTIFICATE_VERIFY, 1, [Define if using GnuTLS certificate verification callbacks.])
2186 AC_SUBST(LIBGNUTLS_LIBS)
2187 AC_SUBST(LIBGNUTLS_CFLAGS)
2189 dnl inotify is only available on GNU/Linux.
2191 if test "${with_inotify}" = "yes"; then
2192 AC_CHECK_HEADERS(sys/inotify.h)
2193 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2194 AC_CHECK_FUNCS(inotify_init1 inotify_add_watch inotify_rm_watch, HAVE_INOTIFY=yes)
2197 if test "${HAVE_INOTIFY}" = "yes"; then
2198 AC_DEFINE(HAVE_INOTIFY, [1], [Define to 1 to use inotify])
2201 dnl Do not put whitespace before the #include statements below.
2202 dnl Older compilers (eg sunos4 cc) choke on it.
2205 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2206 if test "$with_xaw3d" != no; then
2207 AC_CACHE_VAL(emacs_cv_xaw3d,
2208 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2209 #include <X11/Intrinsic.h>
2210 #include <X11/Xaw3d/Simple.h>]],
2212 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2213 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2214 emacs_cv_xaw3d=no)])
2218 if test $emacs_cv_xaw3d = yes; then
2219 AC_MSG_CHECKING(for xaw3d)
2220 AC_MSG_RESULT([yes; using Lucid toolkit])
2224 AC_DEFINE(HAVE_XAW3D, 1,
2225 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2227 AC_MSG_CHECKING(for xaw3d)
2229 AC_MSG_CHECKING(for libXaw)
2230 AC_CACHE_VAL(emacs_cv_xaw,
2231 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2232 #include <X11/Intrinsic.h>
2233 #include <X11/Xaw/Simple.h>]],
2237 if test $emacs_cv_xaw = yes; then
2238 AC_MSG_RESULT([yes; using Lucid toolkit])
2241 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2242 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2244 AC_MSG_ERROR([No X toolkit could be found.
2245 If you are sure you want Emacs compiled without an X toolkit, pass
2247 to configure. Otherwise, install the development libraries for the toolkit
2248 that you want to use (e.g. Gtk+) and re-run configure.])
2253 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2256 if test "${USE_X_TOOLKIT}" != "none"; then
2257 AC_MSG_CHECKING(X11 toolkit version)
2258 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2259 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2260 [[#if XtSpecificationRelease < 6
2263 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2264 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2265 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2266 AC_MSG_RESULT(6 or newer)
2267 AC_DEFINE(HAVE_X11XTR6, 1,
2268 [Define to 1 if you have the X11R6 or newer version of Xt.])
2269 LIBXTR6="-lSM -lICE"
2271 ## Use libw.a along with X11R6 Xt.
2272 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2275 AC_MSG_RESULT(before 6)
2278 dnl If using toolkit, check whether libXmu.a exists.
2279 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2281 if test x$HAVE_X11XTR6 = xyes; then
2282 LIBS="-lXt -lSM -lICE $LIBS"
2286 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2287 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2288 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2292 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2293 dnl Why not just test for libxmu in the normal way?
2296 ## These systems don't supply Xmu.
2298 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2303 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2304 if test "${HAVE_X11}" = "yes"; then
2305 if test "${USE_X_TOOLKIT}" != "none"; then
2306 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2311 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2312 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2313 if test -d /usr/include/openmotif; then
2314 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2315 emacs_cv_openmotif=yes
2316 case "$canonical" in
2317 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2318 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2321 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2324 emacs_cv_openmotif=no
2326 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2327 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2328 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2331 Motif version prior to 2.1.
2333 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2334 if test $emacs_cv_motif_version_2_1 = yes; then
2335 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2336 if test x$emacs_cv_openmotif = xyes; then
2337 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2340 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2341 # We put this in CFLAGS temporarily to precede other -I options
2342 # that might be in CFLAGS temporarily.
2343 # We put this in CPPFLAGS where it precedes the other -I options.
2344 OLD_CPPFLAGS=$CPPFLAGS
2346 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2347 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2348 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2350 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2351 if test $emacs_cv_lesstif = yes; then
2352 # Make sure this -I option remains in CPPFLAGS after it is set
2353 # back to REAL_CPPFLAGS.
2354 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2355 # have those other -I options anyway. Ultimately, having this
2356 # directory ultimately in CPPFLAGS will be enough.
2357 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2358 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2361 CPPFLAGS=$OLD_CPPFLAGS
2364 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2365 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2368 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2369 dnl using Motif or Xaw3d is available, and unless
2370 dnl --with-toolkit-scroll-bars=no was specified.
2372 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2373 [Define to 1 if we should use toolkit scroll bars.])dnl
2374 USE_TOOLKIT_SCROLL_BARS=no
2375 if test "${with_toolkit_scroll_bars}" != "no"; then
2376 if test "${USE_X_TOOLKIT}" != "none"; then
2377 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2378 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2380 USE_TOOLKIT_SCROLL_BARS=yes
2381 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2382 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2383 USE_TOOLKIT_SCROLL_BARS=yes
2385 elif test "${HAVE_GTK}" = "yes"; then
2386 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2387 USE_TOOLKIT_SCROLL_BARS=yes
2388 elif test "${HAVE_NS}" = "yes"; then
2389 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2390 USE_TOOLKIT_SCROLL_BARS=yes
2391 elif test "${HAVE_W32}" = "yes"; then
2392 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2393 USE_TOOLKIT_SCROLL_BARS=yes
2397 dnl See if XIM is available.
2398 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2399 #include <X11/Xlib.h>
2400 #include <X11/Xresource.h>]],
2401 [[XIMProc callback;]])],
2403 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2406 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2408 if test "${with_xim}" != "no"; then
2409 AC_DEFINE(USE_XIM, 1,
2410 [Define to 1 if we should use XIM, if it is available.])
2414 if test "${HAVE_XIM}" != "no"; then
2416 if test "$GCC" = yes; then
2417 CFLAGS="$CFLAGS --pedantic-errors"
2419 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2420 #include <X11/Xlib.h>
2421 #include <X11/Xresource.h>]],
2427 XPointer *client_data;
2429 /* If we're not using GCC, it's probably not XFree86, and this is
2430 probably right, but we can't use something like --pedantic-errors. */
2431 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2432 char*, XIMProc, XPointer*);
2434 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2436 [emacs_cv_arg6_star=yes])
2437 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2438 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2439 either XPointer or XPointer*.])dnl
2440 if test "$emacs_cv_arg6_star" = yes; then
2441 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2443 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2448 ### Start of font-backend (under any platform) section.
2449 # (nothing here yet -- this is a placeholder)
2450 ### End of font-backend (under any platform) section.
2452 ### Start of font-backend (under X11) section.
2453 if test "${HAVE_X11}" = "yes"; then
2454 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2456 ## Use -lXft if available, unless `--with-xft=no'.
2458 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2461 if test "x${with_xft}" != "xno"; then
2463 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2464 ## Because xftfont.c uses XRenderQueryExtension, we also
2465 ## need to link to -lXrender.
2467 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2468 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2469 OLD_CPPFLAGS="$CPPFLAGS"
2470 OLD_CFLAGS="$CFLAGS"
2472 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2473 CFLAGS="$CFLAGS $XFT_CFLAGS"
2474 XFT_LIBS="-lXrender $XFT_LIBS"
2475 LIBS="$XFT_LIBS $LIBS"
2476 AC_CHECK_HEADER(X11/Xft/Xft.h,
2477 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS))
2479 if test "${HAVE_XFT}" = "yes"; then
2480 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2482 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2484 CPPFLAGS="$OLD_CPPFLAGS"
2485 CFLAGS="$OLD_CFLAGS"
2487 fi # "${HAVE_XFT}" = "yes"
2488 fi # "$HAVE_XFT" != no
2489 fi # "x${with_xft}" != "xno"
2491 ## We used to allow building with FreeType and without Xft.
2492 ## However, the ftx font backend driver is not in good shape.
2493 if test "$HAVE_XFT" != "yes"; then
2494 dnl For the "Does Emacs use" message at the end.
2498 dnl Strict linkers fail with
2499 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2500 dnl if -lfreetype is not specified.
2501 dnl The following is needed to set FREETYPE_LIBS.
2502 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2505 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2509 if test "${HAVE_FREETYPE}" = "yes"; then
2510 AC_DEFINE(HAVE_FREETYPE, 1,
2511 [Define to 1 if using the freetype and fontconfig libraries.])
2512 if test "${with_libotf}" != "no"; then
2513 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2515 if test "$HAVE_LIBOTF" = "yes"; then
2516 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2517 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2518 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2519 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2520 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2521 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2522 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2526 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2527 dnl Does the new font backend require it, or can it work without it?
2531 if test "${HAVE_LIBOTF}" = yes; then
2532 if test "${with_m17n_flt}" != "no"; then
2533 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2534 if test "$HAVE_M17N_FLT" = "yes"; then
2535 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2546 ### End of font-backend (under X11) section.
2548 AC_SUBST(FREETYPE_CFLAGS)
2549 AC_SUBST(FREETYPE_LIBS)
2550 AC_SUBST(FONTCONFIG_CFLAGS)
2551 AC_SUBST(FONTCONFIG_LIBS)
2552 AC_SUBST(LIBOTF_CFLAGS)
2553 AC_SUBST(LIBOTF_LIBS)
2554 AC_SUBST(M17N_FLT_CFLAGS)
2555 AC_SUBST(M17N_FLT_LIBS)
2557 ### Use -lXpm if available, unless `--with-xpm=no'.
2561 if test "${HAVE_W32}" = "yes"; then
2562 if test "${with_xpm}" != "no"; then
2563 SAVE_CPPFLAGS="$CPPFLAGS"
2564 SAVE_LDFLAGS="$LDFLAGS"
2565 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2566 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2567 AC_CHECK_HEADER(X11/xpm.h,
2568 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2569 if test "${HAVE_XPM}" = "yes"; then
2570 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2571 AC_EGREP_CPP(no_return_alloc_pixels,
2572 [#include "X11/xpm.h"
2573 #ifndef XpmReturnAllocPixels
2574 no_return_alloc_pixels
2576 ], HAVE_XPM=no, HAVE_XPM=yes)
2578 if test "${HAVE_XPM}" = "yes"; then
2579 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2583 CPPFLAGS="$SAVE_CPPFLAGS"
2584 LDFLAGS="$SAVE_LDFLAGS"
2589 if test "${HAVE_XPM}" = "yes"; then
2590 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2595 if test "${HAVE_X11}" = "yes"; then
2596 if test "${with_xpm}" != "no"; then
2597 AC_CHECK_HEADER(X11/xpm.h,
2598 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2599 if test "${HAVE_XPM}" = "yes"; then
2600 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2601 AC_EGREP_CPP(no_return_alloc_pixels,
2602 [#include "X11/xpm.h"
2603 #ifndef XpmReturnAllocPixels
2604 no_return_alloc_pixels
2606 ], HAVE_XPM=no, HAVE_XPM=yes)
2608 if test "${HAVE_XPM}" = "yes"; then
2616 if test "${HAVE_XPM}" = "yes"; then
2617 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2624 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2627 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2628 if test "${with_jpeg}" != "no"; then
2629 dnl Checking for jpeglib.h can lose because of a redefinition of
2631 AC_CHECK_HEADER(jerror.h,
2632 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2635 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2636 if test "${HAVE_JPEG}" = "yes"; then
2637 AC_DEFINE(HAVE_JPEG)
2638 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2639 [#include <jpeglib.h>
2640 version=JPEG_LIB_VERSION
2642 [AC_DEFINE(HAVE_JPEG)],
2643 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2646 if test "${HAVE_JPEG}" = "yes"; then
2652 ### Use -lpng if available, unless `--with-png=no'.
2655 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2656 if test "${with_png}" != "no"; then
2657 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2658 # in /usr/include/libpng.
2659 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2660 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2661 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2665 if test "${HAVE_PNG}" = "yes"; then
2666 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2667 LIBPNG="-lpng -lz -lm"
2669 AC_CHECK_DECL(png_longjmp,
2671 [AC_DEFINE(PNG_DEPSTRUCT, [],
2672 [Define to empty to suppress deprecation warnings when building
2673 with --enable-gcc-warnings and with libpng versions before 1.5,
2674 which lack png_longjmp.])],
2675 [[#ifdef HAVE_LIBPNG_PNG_H
2676 # include <libpng/png.h>
2685 ### Use -ltiff if available, unless `--with-tiff=no'.
2688 if test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2689 if test "${with_tiff}" != "no"; then
2690 AC_CHECK_HEADER(tiffio.h,
2692 # At least one tiff package requires the jpeg library.
2693 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
2694 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
2697 if test "${HAVE_TIFF}" = "yes"; then
2698 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
2699 dnl FIXME -lz -lm, as per libpng?
2705 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
2708 if test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
2709 || test "${HAVE_W32}" = "yes"; then
2710 AC_CHECK_HEADER(gif_lib.h,
2711 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
2712 # Earlier versions can crash Emacs.
2713 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
2715 if test "$HAVE_GIF" = yes; then
2717 elif test "$HAVE_GIF" = maybe; then
2718 # If gif_lib.h but no libgif, try libungif.
2719 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
2720 test "$HAVE_GIF" = yes && LIBGIF=-lungif
2723 if test "${HAVE_GIF}" = "yes"; then
2724 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
2729 dnl Check for required libraries.
2730 if test "${HAVE_X11}" = "yes"; then
2733 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
2734 MISSING="libXpm" && WITH_NO="--with-xpm=no"
2735 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
2736 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
2737 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
2738 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
2739 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
2740 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
2741 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
2742 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
2744 if test "X${MISSING}" != X; then
2745 AC_MSG_ERROR([The following required libraries were not found:
2747 Maybe some development libraries/packages are missing?
2748 If you don't want to link with them give
2750 as options to configure])
2754 ### Use -lgpm if available, unless `--with-gpm=no'.
2757 if test "${with_gpm}" != "no"; then
2758 AC_CHECK_HEADER(gpm.h,
2759 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
2761 if test "${HAVE_GPM}" = "yes"; then
2762 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
2768 dnl Check for malloc/malloc.h on darwin
2769 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
2772 ### Use NeXTstep API to implement GUI.
2773 if test "${HAVE_NS}" = "yes"; then
2774 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
2775 if test "${NS_IMPL_COCOA}" = "yes"; then
2776 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
2778 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
2779 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
2780 # See also .m.o rule in Makefile.in */
2781 # FIXME: are all these flags really needed? Document here why. */
2782 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
2783 ## Extra CFLAGS applied to src/*.m files.
2784 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"
2786 # We also have mouse menus.
2791 if test "${HAVE_W32}" = "yes"; then
2795 ### Use session management (-lSM -lICE) if available
2798 if test "${HAVE_X11}" = "yes"; then
2799 AC_CHECK_HEADER(X11/SM/SMlib.h,
2800 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
2802 if test "${HAVE_X_SM}" = "yes"; then
2803 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
2807 *) LIBS="$LIBXSM $LIBS" ;;
2813 ### Use libxml (-lxml2) if available
2815 if test "${with_xml2}" != "no"; then
2816 ### I'm not sure what the version number should be, so I just guessed.
2817 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2818 if test "${HAVE_LIBXML2}" = "yes"; then
2819 LIBS="$LIBXML2_LIBS $LIBS"
2820 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
2821 if test "${HAVE_LIBXML2}" = "yes"; then
2822 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
2829 AC_SUBST(LIBXML2_LIBS)
2830 AC_SUBST(LIBXML2_CFLAGS)
2832 # If netdb.h doesn't declare h_errno, we must declare it by hand.
2833 AC_CACHE_CHECK(whether netdb declares h_errno,
2834 emacs_cv_netdb_declares_h_errno,
2835 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
2836 [[return h_errno;]])],
2837 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
2838 if test $emacs_cv_netdb_declares_h_errno = yes; then
2839 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
2842 # sqrt and other floating-point functions such as fmod and frexp
2843 # are found in -lm on most systems.
2844 AC_CHECK_LIB(m, sqrt)
2846 # Check for mail-locking functions in a "mail" library. Probably this should
2847 # have the same check as for liblockfile below.
2848 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
2849 if test $have_mail = yes; then
2851 LIBS="$LIBS_MAIL $LIBS"
2852 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
2856 dnl Debian, at least:
2857 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
2858 if test $have_lockfile = yes; then
2859 LIBS_MAIL=-llockfile
2860 LIBS="$LIBS_MAIL $LIBS"
2861 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
2863 # If we have the shared liblockfile, assume we must use it for mail
2864 # locking (e.g. Debian). If we couldn't link against liblockfile
2865 # (no liblockfile.a installed), ensure that we don't need to.
2866 dnl This works for files generally, not just executables.
2867 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
2868 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
2869 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
2870 if test $ac_cv_prog_liblockfile = yes; then
2871 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
2872 This probably means that movemail could lose mail.
2873 There may be a `development' package to install containing liblockfile.])
2876 AC_CHECK_HEADERS_ONCE(maillock.h)
2879 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
2880 ## interlock access to the mail spool. The alternative is a lock file named
2881 ## /usr/spool/mail/$USER.lock.
2884 aix4-2) mail_lock="lockf" ;;
2886 gnu|freebsd|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
2888 ## On GNU/Linux systems, both methods are used by various mail programs.
2889 ## I assume most people are using newer mailers that have heard of flock.
2890 ## Change this if you need to.
2891 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
2892 ## configure gets the right answers, and that means *NOT* using flock.
2893 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
2894 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
2895 ## Debian maintainer hasn't provided a clean fix for Emacs.
2896 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
2897 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
2898 ## correct logic. -- fx
2899 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
2900 ## liblockfile is a Free Software replacement for libmail, used on
2901 ## Debian systems and elsewhere. -rfr.
2904 if test $have_mail = yes || test $have_lockfile = yes; then
2905 test $ac_cv_header_maillock_h = yes && mail_lock=no
2911 case "$mail_lock" in
2912 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
2914 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
2916 *) BLESSMAIL_TARGET="need-blessmail" ;;
2918 AC_SUBST(BLESSMAIL_TARGET)
2921 AC_CHECK_FUNCS(gethostname \
2922 getrusage get_current_dir_name \
2924 select getpagesize setlocale \
2925 utimes getrlimit setrlimit shutdown getaddrinfo \
2926 strsignal setitimer \
2927 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
2928 gai_strerror mkstemp getline getdelim fsync sync \
2929 difftime posix_memalign \
2930 getpwent endpwent getgrent endgrent \
2932 cfmakeraw cfsetspeed copysign __executable_start)
2934 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
2935 ## has a broken `rint' in some library versions including math library
2936 ## version number A.09.05.
2937 ## You can fix the math library by installing patch number PHSS_4630.
2938 ## But we can fix it more reliably for Emacs by just not using rint.
2939 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
2942 *) AC_CHECK_FUNCS(random rint) ;;
2945 dnl Cannot use AC_CHECK_FUNCS
2946 AC_CACHE_CHECK([for __builtin_unwind_init],
2947 emacs_cv_func___builtin_unwind_init,
2948 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
2949 emacs_cv_func___builtin_unwind_init=yes,
2950 emacs_cv_func___builtin_unwind_init=no)])
2951 if test $emacs_cv_func___builtin_unwind_init = yes; then
2952 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
2953 [Define to 1 if you have the `__builtin_unwind_init' function.])
2956 AC_CHECK_HEADERS_ONCE(sys/un.h)
2961 AC_CHECK_FUNCS(grantpt)
2963 # PTY-related GNU extensions.
2964 AC_CHECK_FUNCS(getpt posix_openpt)
2966 # Check this now, so that we will NOT find the above functions in ncurses.
2967 # That is because we have not set up to link ncurses in lib-src.
2968 # It's better to believe a function is not available
2969 # than to expect to find it in ncurses.
2970 # Also we need tputs and friends to be able to build at all.
2971 AC_MSG_CHECKING([for library containing tputs])
2972 # Run a test program that contains a call to tputs, a call that is
2973 # never executed. This tests whether a pre-'main' dynamic linker
2974 # works with the library. It's too much trouble to actually call
2975 # tputs in the test program, due to portability hassles. When
2976 # cross-compiling, assume the test program will run if it links.
2977 AC_DEFUN([tputs_link_source], [
2979 [[extern void tputs (const char *, int, int (*)(int));
2980 int main (int argc, char **argv)
2983 tputs (argv[0], 0, 0);
2987 # Maybe curses should be tried earlier?
2988 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
2989 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
2991 if test -z "$tputs_library"; then
2995 LIBS_TERMCAP=-l$tputs_library
2997 LIBS="$LIBS_TERMCAP $LIBS"
2999 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3000 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3002 if test "X$msg" != Xno; then
3006 AC_MSG_RESULT([$msg])
3007 if test "X$msg" = Xno; then
3008 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3009 The following libraries were tried (in order):
3010 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3011 Please try installing whichever of these libraries is most appropriate
3012 for your system, together with its header files.
3013 For example, a libncurses-dev(el) or similar package.])
3016 ## Use termcap instead of terminfo?
3017 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3019 ## FIXME? In the cases below where we unconditionally set
3020 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3021 ## if that was found above to have tputs.
3022 ## Should we use the gnu* logic everywhere?
3024 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3025 ## The ncurses library has been moved out of the System framework in
3026 ## Mac OS X 10.2. So if configure detects it, set the command-line
3027 ## option to use it.
3028 darwin) LIBS_TERMCAP="-lncurses" ;;
3030 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3033 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3034 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3035 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3036 [[#if __FreeBSD_version < 400000
3039 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3041 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3043 if test $emacs_cv_freebsd_terminfo = yes; then
3044 LIBS_TERMCAP="-lncurses"
3047 LIBS_TERMCAP="-ltermcap"
3052 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3054 LIBS_TERMCAP="-ltermcap"
3058 openbsd) LIBS_TERMCAP="-lncurses" ;;
3060 ## hpux: Make sure we get select from libc rather than from libcurses
3061 ## because libcurses on HPUX 10.10 has a broken version of select.
3062 ## We used to use -lc -lcurses, but this may be cleaner.
3063 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3064 # set that way, now it uses the default). Isn't this a contradiction?
3065 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3069 TERMCAP_OBJ=tparam.o
3070 if test $TERMINFO = yes; then
3071 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3072 TERMCAP_OBJ=terminfo.o
3074 AC_SUBST(LIBS_TERMCAP)
3075 AC_SUBST(TERMCAP_OBJ)
3078 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3079 # On Darwin, res_init appears not to be useful: see bug#562 and
3080 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3083 if test $opsys != darwin; then
3085 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3086 #include <arpa/nameser.h>
3087 #include <resolv.h>]],
3088 [[return res_init();]])],
3089 have_res_init=yes, have_res_init=no)
3090 if test "$have_res_init" = no; then
3092 LIBS="$LIBS -lresolv"
3093 AC_MSG_CHECKING(for res_init with -lresolv)
3094 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3095 #include <arpa/nameser.h>
3096 #include <resolv.h>]],
3097 [[return res_init();]])],
3098 have_res_init=yes, have_res_init=no)
3099 AC_MSG_RESULT($have_res_init)
3100 if test "$have_res_init" = yes ; then
3106 if test "$have_res_init" = yes; then
3107 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3111 # Do we need the Hesiod library to provide the support routines?
3112 dnl FIXME? Should we be skipping this on Darwin too?
3114 if test "$with_hesiod" != no ; then
3115 # Don't set $LIBS here -- see comments above. FIXME which comments?
3116 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3117 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3118 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3119 if test "$resolv" = yes ; then
3124 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3125 hesiod=yes, :, $RESOLVLIB)])
3127 if test x"$hesiod" = xyes; then
3128 AC_DEFINE(HAVE_LIBHESIOD, 1,
3129 [Define to 1 if you have the hesiod library (-lhesiod).])
3135 # Do we need libresolv (due to res_init or Hesiod)?
3136 if test "$resolv" = yes && test $opsys != darwin; then
3137 AC_DEFINE(HAVE_LIBRESOLV, 1,
3138 [Define to 1 if you have the resolv library (-lresolv).])
3145 # These tell us which Kerberos-related libraries to use.
3152 if test "${with_kerberos}" != no; then
3153 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3154 if test $have_com_err = yes; then
3155 COM_ERRLIB=-lcom_err
3156 LIBS="$COM_ERRLIB $LIBS"
3157 AC_DEFINE(HAVE_LIBCOM_ERR, 1, [Define to 1 if you have the `com_err' library (-lcom_err).])
3159 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3160 if test $have_crypto = yes; then
3162 LIBS="$CRYPTOLIB $LIBS"
3163 AC_DEFINE(HAVE_LIBCRYPTO, 1, [Define to 1 if you have the `crypto' library (-lcrypto).])
3165 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3166 if test $have_k5crypto = yes; then
3167 CRYPTOLIB=-lk5crypto
3168 LIBS="$CRYPTOLIB $LIBS"
3169 AC_DEFINE(HAVE_LIBK5CRYPTO, 1, [Define to 1 if you have the `k5crypto' library (-lk5crypto).])
3171 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3172 if test $have_krb5=yes; then
3174 LIBS="$KRB5LIB $LIBS"
3175 AC_DEFINE(HAVE_LIBKRB5, 1, [Define to 1 if you have the `krb5' library (-lkrb5).])
3177 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3178 if test "${with_kerberos5}" = no; then
3179 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3180 if test $have_des425 = yes; then
3182 LIBS="$DESLIB $LIBS"
3183 AC_DEFINE(HAVE_LIBDES425, 1, [Define to 1 if you have the `des425' library (-ldes425).])
3185 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3186 if test $have_des = yes; then
3188 LIBS="$DESLIB $LIBS"
3189 AC_DEFINE(HAVE_LIBDES, 1, [Define to 1 if you have the `des' library (-ldes).])
3192 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3193 if test $have_krb4 = yes; then
3195 LIBS="$KRB4LIB $LIBS"
3196 AC_DEFINE(HAVE_LIBKRB4, 1, [Define to 1 if you have the `krb4' library (-lkrb4).])
3198 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3199 if test $have_krb = yes; then
3201 LIBS="$KRB4LIB $LIBS"
3202 AC_DEFINE(HAVE_LIBKRB, 1, [Define to 1 if you have the `krb' library (-lkrb).])
3207 if test "${with_kerberos5}" != no; then
3208 AC_CHECK_HEADERS(krb5.h,
3209 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3210 [#include <krb5.h>])])
3212 AC_CHECK_HEADERS(des.h,,
3213 [AC_CHECK_HEADERS(kerberosIV/des.h,,
3214 [AC_CHECK_HEADERS(kerberos/des.h)])])
3215 AC_CHECK_HEADERS(krb.h,,
3216 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3217 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3219 AC_CHECK_HEADERS(com_err.h)
3222 AC_SUBST(COM_ERRLIB)
3228 AC_CHECK_FUNCS_ONCE(tzset)
3229 AC_MSG_CHECKING(whether localtime caches TZ)
3230 AC_CACHE_VAL(emacs_cv_localtime_cache,
3231 [if test x$ac_cv_func_tzset = xyes; then
3232 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3233 char TZ_GMT0[] = "TZ=GMT0";
3234 char TZ_PST8[] = "TZ=PST8";
3237 time_t now = time ((time_t *) 0);
3238 int hour_GMT0, hour_unset;
3239 if (putenv (TZ_GMT0) != 0)
3241 hour_GMT0 = localtime (&now)->tm_hour;
3243 hour_unset = localtime (&now)->tm_hour;
3244 if (putenv (TZ_PST8) != 0)
3246 if (localtime (&now)->tm_hour == hour_GMT0)
3249 if (localtime (&now)->tm_hour != hour_unset)
3252 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3253 [# If we have tzset, assume the worst when cross-compiling.
3254 emacs_cv_localtime_cache=yes])
3256 # If we lack tzset, report that localtime does not cache TZ,
3257 # since we can't invalidate the cache if we don't have tzset.
3258 emacs_cv_localtime_cache=no
3260 AC_MSG_RESULT($emacs_cv_localtime_cache)
3261 if test $emacs_cv_localtime_cache = yes; then
3262 AC_DEFINE(LOCALTIME_CACHE, 1,
3263 [Define to 1 if localtime caches TZ.])
3267 AC_CHECK_FUNC(socket, , ok_so_far=no)
3268 if test $ok_so_far = yes; then
3269 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3271 if test $ok_so_far = yes; then
3272 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3274 if test $ok_so_far = yes; then
3275 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3276 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3277 [Define to 1 if you have inet sockets.])
3280 if test -f /usr/lpp/X11/bin/smt.exp; then
3281 AC_DEFINE(HAVE_AIX_SMT_EXP, 1,
3282 [Define to 1 if the file /usr/lpp/X11/bin/smt.exp exists.])
3285 AC_MSG_CHECKING(whether system supports dynamic ptys)
3286 if test -d /dev/pts && ls -d /dev/ptmx > /dev/null 2>&1 ; then
3288 AC_DEFINE(HAVE_DEV_PTMX, 1, [Define to 1 if dynamic ptys are supported.])
3293 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3294 dnl This can be removed once we assume Autoconf 2.70.
3296 *-solaris2.4 | *-solaris2.4.*)
3297 dnl Disable the Autoconf-generated vfork test.
3298 : ${ac_cv_func_vfork_works=no};;
3303 AC_CHECK_FUNCS(snprintf)
3305 dnl Adapted from Haible's version.
3306 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3307 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3308 [[char* cs = nl_langinfo(CODESET);]])],
3309 emacs_cv_langinfo_codeset=yes,
3310 emacs_cv_langinfo_codeset=no)
3312 if test $emacs_cv_langinfo_codeset = yes; then
3313 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3314 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3319 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3320 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3321 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3322 if test "$emacs_cv_c_restrict_arr" = yes; then
3323 AC_DEFINE(__restrict_arr, __restrict,
3324 [Define to compiler's equivalent of C99 restrict keyword in array
3325 declarations. Define as empty for no equivalent.])
3328 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3329 dnl how the tty code is related to POSIX and/or other versions of termios.
3330 dnl The following looks like a useful start.
3332 dnl AC_SYS_POSIX_TERMIOS
3333 dnl if test $ac_cv_sys_posix_termios = yes; then
3334 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3335 dnl and macros for terminal control.])
3336 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3339 dnl Turned on June 1996 supposing nobody will mind it.
3340 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3341 in the full name stands for the login id.])
3343 dnl Every platform that uses configure (ie every non-MS platform)
3344 dnl supports this. There is a create-lockfiles option you can
3345 dnl customize if you do not want the lock files to be written.
3346 dnl So it is not clear that this #define still needs to exist.
3347 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3348 so that Emacs can tell instantly when you try to modify a file that
3349 someone else has modified in his/her Emacs.])
3351 dnl Everybody supports this, except MS.
3352 dnl Seems like the kind of thing we should be testing for, though.
3353 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3354 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3356 dnl Everybody supports this, except MS-DOS.
3357 dnl Seems like the kind of thing we should be testing for, though.
3358 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3359 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3360 4.2-compatible sockets.])
3362 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3364 AC_DEFINE(NULL_DEVICE, ["/dev/null"], [Name of the file to open to get
3365 a null file, or a data sink.])
3367 AC_DEFINE(SEPCHAR, [':'], [Character that separates PATH elements.])
3369 dnl Everybody supports this, except MS-DOS.
3370 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3372 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3375 AC_DEFINE(DIRECTORY_SEP, ['/'],
3376 [Character that separates directories in a file name.])
3378 dnl Only used on MS platforms.
3379 AH_TEMPLATE(DEVICE_SEP, [Character that separates a device in a file name.])
3381 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3382 [Returns true if character is a device separator.])
3384 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3385 [Returns true if character is a directory separator.])
3387 dnl On MS, this also accepts IS_DEVICE_SEP.
3388 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3389 [Returns true if character is any form of separator.])
3392 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3396 dnl Unfortunately without libXmu we cannot support EditRes.
3397 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3398 AC_DEFINE(NO_EDITRES, 1)
3403 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3404 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3405 AC_DEFINE(NO_EDITRES, 1)
3411 irix6-5 | sol2* | unixware )
3412 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3413 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3414 dnl need the constant to dimension an array. So wire in the appropriate
3416 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3420 emacs_broken_SIGIO=no
3423 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3424 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3425 hpux* | irix6-5 | openbsd | sol2* | unixware )
3426 emacs_broken_SIGIO=yes
3430 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3431 dnl the way this system works, libc functions that return malloced
3432 dnl memory use the libc malloc implementation. Calling xfree or
3433 dnl xrealloc on the results of such functions results in a crash.
3435 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3436 dnl but that does not currently work on this system.
3438 dnl It is possible to completely override the malloc implementation on
3439 dnl AIX, but that involves putting the malloc functions in a shared
3440 dnl library and setting the MALLOCTYPE environment variable to point to
3441 dnl that shared library.
3443 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3444 dnl to avoid a crash just use the Emacs implementation for that function.
3446 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3447 dnl of this file, so that we do not check for get_current_dir_name
3448 dnl on AIX. But that might be fragile if something else ends
3449 dnl up testing for get_current_dir_name as a dependency.
3450 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3451 get_current_dir_name should not be used.])
3455 dnl Circumvent a bug in FreeBSD. In the following sequence of
3456 dnl writes/reads on a PTY, read(2) returns bogus data:
3458 dnl write(2) 1022 bytes
3459 dnl write(2) 954 bytes, get EAGAIN
3460 dnl read(2) 1024 bytes in process_read_output
3461 dnl read(2) 11 bytes in process_read_output
3463 dnl That is, read(2) returns more bytes than have ever been written
3464 dnl successfully. The 1033 bytes read are the 1022 bytes written
3465 dnl successfully after processing (for example with CRs added if the
3466 dnl terminal is set up that way which it is here). The same bytes will
3467 dnl be seen again in a later read(2), without the CRs.
3468 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3469 work around an issue when reading from a PTY.])
3475 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3476 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3481 darwin | freebsd | netbsd | openbsd )
3482 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3483 close a pty to make it a controlling terminal (it is already a
3484 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3488 dnl FIXME Surely we can test for this rather than hard-code it.
3490 netbsd | openbsd) sound_device="/dev/audio" ;;
3491 *) sound_device="/dev/dsp" ;;
3495 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3496 [Name of the default sound device.])
3499 dnl Emacs can read input using SIGIO and buffering characters itself,
3500 dnl or using CBREAK mode and making C-g cause SIGINT.
3501 dnl The choice is controlled by the variable interrupt_input.
3503 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3505 dnl Emacs uses the presence of the USABLE_SIGIO macro
3506 dnl to indicate whether or not signal-driven I/O is possible. It uses
3507 dnl INTERRUPT_INPUT to decide whether to use it by default.
3509 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3510 dnl CBREAK mode has two disadvantages
3511 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3512 dnl I hear that in system V this problem does not exist.
3513 dnl 2) Control-G causes output to be discarded.
3514 dnl I do not know whether this can be fixed in system V.
3516 dnl Another method of doing input is planned but not implemented.
3517 dnl It would have Emacs fork off a separate process
3518 dnl to read the input and send it to the true Emacs process
3521 darwin | gnu-linux | gnu-kfreebsd )
3522 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3527 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3528 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3529 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3530 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3531 dnl taking float or double parameters.
3533 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3534 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3535 file defines `NeedWidePrototypes' as `NO'.])
3540 dnl Used in process.c, this must be a loop, even if it only runs once.
3541 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3542 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3543 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3544 dnl trying suffixes 0-16.
3545 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3546 first PTY, if PTYs are supported.])
3547 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3548 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3549 end of a PTY, if non-standard.])
3550 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3551 end of a PTY, if non-standard.])
3555 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3556 dnl You allocate a pty by opening /dev/ptc to get the master side.
3557 dnl To get the name of the slave side, you just ttyname() the master side.
3558 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3559 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3563 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3564 dnl multi-line AC_DEFINEs are hard. :(
3565 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)])
3566 AC_DEFINE(PTY_NAME_SPRINTF, [])
3567 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3570 dnl FIXME? Maybe use same as freebsd - see bug#12040.
3572 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3573 dnl Not used, because PTY_ITERATION is defined.
3574 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3575 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
3576 dnl But we don't have to block SIGCHLD because it is blocked in the
3577 dnl implementation of grantpt.
3578 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
3579 AC_DEFINE(PTY_NAME_SPRINTF, [])
3580 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3584 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3587 gnu-linux | gnu-kfreebsd | freebsd | netbsd )
3589 if test "x$ac_cv_func_grantpt" = xyes; then
3590 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
3591 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3592 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
3593 dnl to prevent sigchld_handler from intercepting the child's death.
3594 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); }])
3595 dnl if HAVE_POSIX_OPENPT
3596 if test "x$ac_cv_func_posix_openpt" = xyes; then
3597 AC_DEFINE(PTY_OPEN, [fd = posix_openpt (O_RDWR | O_NOCTTY)])
3598 AC_DEFINE(PTY_NAME_SPRINTF, [])
3600 elif test "x$ac_cv_func_getpt" = xyes; then
3601 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
3602 AC_DEFINE(PTY_NAME_SPRINTF, [])
3604 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3607 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3612 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
3613 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
3614 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
3618 dnl It looks like this cannot be right, because it is not a loop.
3619 dnl However, process.c actually does this:
3625 dnl which presumably makes it OK, since irix == sgi (?).
3626 dnl FIXME it seems like this special treatment is unnecessary?
3627 dnl Why can't irix use a single-trip loop like eg cygwin?
3628 AC_DEFINE(PTY_ITERATION, [])
3629 dnl Not used, because PTY_ITERATION is defined.
3630 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
3631 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); }])
3632 dnl No need to get the pty name at all.
3633 AC_DEFINE(PTY_NAME_SPRINTF, [])
3634 dnl No need to use sprintf to get the tty name--we get that from _getpty.
3635 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
3639 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
3640 dnl from intercepting that death. If any child but grantpt's should die
3641 dnl within, it should be caught after sigrelse(2).
3642 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); }])
3646 dnl Comments are as per sol2*.
3647 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); }])
3654 dnl This change means that we don't loop through allocate_pty too
3655 dnl many times in the (rare) event of a failure.
3656 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
3657 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
3658 dnl Push various streams modules onto a PTY channel. Used in process.c.
3659 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.])
3664 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
3665 "typing" a signal character on the pty.])
3668 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
3669 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
3670 aix4-2 | cygwin | gnu | irix6-5 | freebsd | netbsd | openbsd )
3671 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3674 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
3675 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
3676 gnu-linux | gnu-kfreebsd )
3678 AC_MSG_CHECKING([for signals via characters])
3679 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3680 #include <linux/version.h>
3681 #if LINUX_VERSION_CODE < 0x20400
3682 # error "Linux version too old"
3684 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
3686 AC_MSG_RESULT([$emacs_signals_via_chars])
3687 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
3692 dnl Used in vm-limit.c
3693 AH_TEMPLATE(DATA_START, [Address of the start of the data segment.])
3694 dnl Used in lisp.h, emacs.c, mem-limits.h
3695 dnl NEWS.18 describes this as "a number which contains
3696 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
3697 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
3698 stored in a Lisp_Object.])
3699 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
3703 dnl libc defines data_start.
3704 AC_DEFINE(DATA_START, [({ extern int data_start; (char *) &data_start; })])
3708 dnl The data segment on this machine always starts at address 0x40000000.
3709 AC_DEFINE(DATA_START, [0x40000000])
3710 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
3713 AC_DEFINE(DATA_START, [0x10000000])
3714 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
3719 AH_TEMPLATE(TAB3, [Undocumented.])
3722 darwin) AC_DEFINE(TAB3, OXTABS) ;;
3724 gnu | freebsd | netbsd | openbsd )
3725 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
3726 AC_DEFINE(TAB3, OXTABS)
3729 gnu-linux | gnu-kfreebsd )
3730 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3734 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
3735 [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)],
3736 [Mark a secondary stack, like the register stack on the ia64.]), [])
3740 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
3741 run_time_remap; for HPUX.])
3746 dnl These won't be used automatically yet. We also need to know, at least,
3747 dnl that the stack is continuous.
3748 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
3749 registers relevant for conservative garbage collection in the jmp_buf.])
3751 AH_TEMPLATE(GC_MARK_STACK, [Define to GC_USE_GCPROS_AS_BEFORE if
3752 conservative garbage collection is not known to work.])
3756 aix4-2 | hpux* | unixware)
3757 dnl Conservative garbage collection has not been tested, so for now
3758 dnl play it safe and stick with the old-fashioned way of marking.
3759 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE])
3762 dnl Not all the architectures are tested, but there are Debian packages
3763 dnl for SCM and/or Guile on them, so the technique must work. See also
3764 dnl comments in alloc.c concerning setjmp and gcc.
3765 dnl Fixme: it's probably safe to just use the GCC conditional below.
3766 gnu-linux | gnu-kfreebsd )
3767 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3768 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
3769 || defined __alpha__ || defined __mips__ || defined __s390__ \
3770 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
3771 || defined __ia64__ || defined __sh__
3774 # error "setjmp not known to work on this arch"
3776 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1),
3777 AC_DEFINE(GC_MARK_STACK, [GC_USE_GCPROS_AS_BEFORE]) )
3782 if test x$GCC = xyes; then
3783 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
3784 AC_DEFINE(GC_SETJMP_WORKS, 1)
3787 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
3788 freebsd | netbsd | openbsd | irix6-5 | sol2* )
3789 AC_DEFINE(GC_SETJMP_WORKS, 1)
3794 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
3797 [[#include <setjmp.h>
3801 _longjmp (j, 1);]])],
3802 [emacs_cv_func__setjmp=yes],
3803 [emacs_cv_func__setjmp=no])])
3804 if test $emacs_cv_func__setjmp = yes; then
3805 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
3807 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
3810 [[#include <setjmp.h>
3813 if (! sigsetjmp (j, 1))
3814 siglongjmp (j, 1);]])],
3815 [emacs_cv_func_sigsetjmp=yes],
3816 [emacs_cv_func_sigsetjmp=no])])
3817 if test $emacs_cv_func_sigsetjmp = yes; then
3818 AC_DEFINE([HAVE_SIGSETJMP], 1,
3819 [Define to 1 if sigsetjmp and siglongjmp work.
3820 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
3826 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
3827 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
3828 dnl and this is all we need.
3829 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
3836 dnl Used in xfaces.c.
3837 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
3838 some systems, where it requires time.h.])
3843 dnl Define symbols to identify the version of Unix this is.
3844 dnl Define all the symbols that apply correctly.
3845 AH_TEMPLATE(BSD4_2, [Define if the system is compatible with BSD 4.2.])
3846 AH_TEMPLATE(BSD_SYSTEM, [Define if the system is compatible with BSD 4.2.])
3847 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
3848 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
3849 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
3850 AH_TEMPLATE(USG5, [Define if the system is compatible with System V.])
3851 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
3857 dnl This symbol should be defined on AIX Version 3 ???????
3858 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3860 # error "_AIX not defined"
3862 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
3866 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
3870 dnl BSD4_3 and BSD4_4 are already defined in sys/param.h.
3871 AC_DEFINE(BSD4_2, [])
3872 AC_DEFINE(BSD_SYSTEM, [])
3873 dnl More specific than the above two. We cannot use __APPLE__ as this
3874 dnl may not be defined on non-OSX Darwin, and we cannot define DARWIN
3875 dnl here because Panther and lower CoreFoundation.h uses DARWIN to
3876 dnl distinguish OS X from pure Darwin.
3877 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
3881 AC_DEFINE(BSD4_2, [])
3882 dnl Hack to avoid calling AC_PREPROC_IFELSE multiple times.
3883 dnl Would not be needed with autoconf >= 2.67, where the
3884 dnl preprocessed output is accessible in "conftest.i".
3885 AC_DEFINE(BSD_SYSTEM_AHB, 1, [Define if AH_BOTTOM should change BSD_SYSTEM.])
3888 gnu | netbsd | openbsd )
3889 AC_DEFINE(BSD4_2, [])
3890 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
3892 # error "BSD_SYSTEM not defined"
3894 ]], [[]])], [], AC_DEFINE(BSD_SYSTEM, 43) )
3897 gnu-linux | gnu-kfreebsd )
3899 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
3905 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
3911 AC_DEFINE(USG5_4, [])
3912 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
3918 AC_DEFINE(USG5_4, [])
3919 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
3925 AC_DEFINE(USG5_4, [])
3929 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
3932 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
3933 emacs_cv_usable_FIONREAD=no
3938 [AC_LANG_PROGRAM([[#include <sys/types.h>
3939 #include <sys/ioctl.h>
3941 # include <sys/filio.h>
3944 [[int foo = ioctl (0, FIONREAD, &foo);]])],
3945 [emacs_cv_usable_FIONREAD=yes],
3946 [emacs_cv_usable_FIONREAD=no])
3949 if test $emacs_cv_usable_FIONREAD = yes; then
3950 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
3952 if test $emacs_broken_SIGIO = no; then
3953 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
3955 [AC_LANG_PROGRAM([[#include <fcntl.h>
3958 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
3959 [emacs_cv_usable_SIGIO=yes],
3960 [emacs_cv_usable_SIGIO=no])],
3961 [emacs_cv_usable_SIGIO=yes],
3962 [emacs_cv_usable_SIGIO=no])
3963 if test $emacs_cv_usable_SIGIO = yes; then
3964 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
3971 dnl Emacs supplies its own malloc, but glib (part of Gtk+) calls
3972 dnl memalign and on Cygwin, that becomes the Cygwin-supplied memalign.
3973 dnl As malloc is not the Cygwin malloc, the Cygwin memalign always
3974 dnl returns ENOSYS. A workaround is to set G_SLICE=always-malloc. */
3976 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
3977 G_SLICE environment variable to "always-malloc" at startup, if
3982 dnl It works to open the pty's tty in the parent (Emacs), then
3983 dnl close and reopen it in the child.
3984 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
3985 works to open a pty's tty in the parent process, then close and
3986 reopen it in the child.])
3990 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
3991 use VSUSP instead of VSWTCH.])
3995 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4000 # Set up the CFLAGS for real compilation, so we can substitute it.
4001 CFLAGS="$REAL_CFLAGS"
4002 CPPFLAGS="$REAL_CPPFLAGS"
4004 ## Hack to detect a buggy GCC version.
4005 if test "x$GCC" = xyes \
4006 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4007 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4008 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4009 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4012 version=$PACKAGE_VERSION
4014 copyright="Copyright (C) 2012 Free Software Foundation, Inc."
4015 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4016 [Short copyright string for this version of Emacs.])
4019 ### Specify what sort of things we'll be editing into Makefile and config.h.
4020 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4022 AC_SUBST(configuration)
4027 AC_SUBST(exec_prefix)
4030 AC_SUBST(sharedstatedir)
4031 AC_SUBST(libexecdir)
4036 AC_SUBST(standardlisppath)
4037 AC_SUBST(locallisppath)
4039 AC_SUBST(x_default_search_path)
4041 AC_SUBST(archlibdir)
4046 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4047 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4048 ## end of LIBX_BASE, but nothing ever set it.
4049 AC_SUBST(LD_SWITCH_X_SITE)
4050 AC_SUBST(C_SWITCH_X_SITE)
4051 AC_SUBST(GNUSTEP_CFLAGS)
4053 ## Used in lwlib/Makefile.in.
4054 AC_SUBST(X_TOOLKIT_TYPE)
4056 AC_SUBST(ns_appbindir)
4057 AC_SUBST(ns_appresdir)
4059 AC_SUBST(GNU_OBJC_CFLAGS)
4060 AC_SUBST(OTHER_FILES)
4062 if test -n "${term_header}"; then
4063 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4064 [Define to the header for the built-in window system.])
4067 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4068 [Define to the canonical Emacs configuration name.])
4069 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${ac_configure_args}",
4070 [Define to the options passed to configure.])
4071 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4072 define this to include extra configuration information.])
4077 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4078 AC_DEFINE(HAVE_X_WINDOWS, 1,
4079 [Define to 1 if you want to use the X window system.])
4081 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o xgselect.o"
4083 if test "$HAVE_XFT" = "yes"; then
4084 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4085 elif test "$HAVE_FREETYPE" = "yes"; then
4086 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4096 if test "${USE_X_TOOLKIT}" != "none" ; then
4098 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4099 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4100 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4101 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4102 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4106 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4107 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4111 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4112 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4113 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4117 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4118 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4121 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4124 AC_SUBST(WIDGET_OBJ)
4127 case "$USE_X_TOOLKIT" in
4128 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4129 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4130 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4132 AC_SUBST(TOOLKIT_LIBW)
4134 if test "$USE_X_TOOLKIT" = "none"; then
4135 LIBXT_OTHER="\$(LIBXSM)"
4136 OLDXMENU_TARGET="really-oldXMenu"
4138 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4139 OLDXMENU_TARGET="really-lwlib"
4141 AC_SUBST(LIBXT_OTHER)
4143 ## The X Menu stuff is present in the X10 distribution, but missing
4144 ## from X11. If we have X10, just use the installed library;
4145 ## otherwise, use our own copy.
4146 if test "${HAVE_X11}" = "yes" ; then
4147 AC_DEFINE(HAVE_X11, 1,
4148 [Define to 1 if you want to use version 11 of X windows.
4149 Otherwise, Emacs expects to use version 10.])
4151 if test "$USE_X_TOOLKIT" = "none"; then
4152 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4154 OLDXMENU="\${lwlibdir}/liblw.a"
4156 LIBXMENU="\$(OLDXMENU)"
4157 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4158 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4160 ## For a syntactically valid Makefile; not actually used for anything.
4161 ## See comments in src/Makefile.in.
4163 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4164 if test "${HAVE_X_WINDOWS}" = "yes"; then
4173 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4180 AC_SUBST(OLDXMENU_TARGET)
4183 AC_SUBST(LIBX_OTHER)
4184 AC_SUBST(OLDXMENU_DEPS)
4186 if test "${HAVE_MENUS}" = "yes" ; then
4187 AC_DEFINE(HAVE_MENUS, 1,
4188 [Define to 1 if you have mouse menus.
4189 (This is automatic if you use X, but the option to specify it remains.)
4190 It is also defined with other window systems that support xmenu.c.])
4193 if test "${GNU_MALLOC}" = "yes" ; then
4194 AC_DEFINE(GNU_MALLOC, 1,
4195 [Define to 1 if you want to use the GNU memory allocator.])
4199 if test "${REL_ALLOC}" = "yes" ; then
4200 AC_DEFINE(REL_ALLOC, 1,
4201 [Define REL_ALLOC if you want to use the relocating allocator for
4204 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4206 AC_SUBST(RALLOC_OBJ)
4208 if test "$opsys" = "cygwin"; then
4209 CYGWIN_OBJ="sheap.o cygw32.o"
4210 ## Cygwin differs because of its unexec().
4212 POST_ALLOC_OBJ=lastfile.o
4215 PRE_ALLOC_OBJ=lastfile.o
4218 AC_SUBST(CYGWIN_OBJ)
4219 AC_SUBST(PRE_ALLOC_OBJ)
4220 AC_SUBST(POST_ALLOC_OBJ)
4222 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4223 # it temporarily reverts them to their pre-pkg-config values,
4224 # because gnulib needs to work with both src (which uses the
4225 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4226 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4227 # and it therefore needs to run in an environment where LIBS does not
4228 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4229 # for some package unrelated to lib-src.
4232 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4233 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4234 gl_ASSERT_NO_GNULIB_POSIXCHECK
4235 gl_ASSERT_NO_GNULIB_TESTS
4241 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4244 ## The -headerpad option tells ld (see man page) to leave room at the
4245 ## end of the header for adding load commands. Needed for dumping.
4246 ## 0x690 is the total size of 30 segment load commands (at 56
4247 ## each); under Cocoa 31 commands are required.
4248 if test "$HAVE_NS" = "yes"; then
4249 libs_nsgui="-framework AppKit"
4255 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4257 ## This is here because src/Makefile.in did some extra fiddling around
4258 ## with LD_SWITCH_SYSTEM. The cpp logic was:
4259 ## #ifndef LD_SWITCH_SYSTEM
4260 ## #if !defined (__GNUC__) && ((defined (BSD_SYSTEM) && !defined (COFF)))
4261 ## Since all the *bsds define LD_SWITCH_SYSTEM, this simplifies to:
4262 ## not using gcc, darwin.
4263 ## Because this was done in src/Makefile.in, the resulting part of
4264 ## LD_SWITCH_SYSTEM was not used in configure (ie, in ac_link).
4265 ## It therefore seems cleaner to put this in LD_SWITCH_SYSTEM_TEMACS,
4266 ## rather than LD_SWITCH_SYSTEM.
4267 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4268 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4271 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4272 ## find X at run-time.
4273 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4274 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4275 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4276 ## had different values in configure (in ac_link) and src/Makefile.in.
4277 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4278 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4280 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4283 if test "$NS_IMPL_GNUSTEP" = "yes"; then
4284 LD_SWITCH_SYSTEM_TEMACS="${LD_SWITCH_SYSTEM_TEMACS} -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES} -lgnustep-gui -lgnustep-base -lobjc -lpthread"
4287 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4293 ## gnu: GNU needs its own crt0.
4294 aix4-2|cygwin|darwin|gnu|hpux*|irix6-5|sol2*|unixware) ORDINARY_LINK=yes ;;
4296 ## On post 1.3 releases of NetBSD, gcc -nostdlib also clears the
4297 ## library search parth, i.e. it won't search /usr/lib for libc and
4298 ## friends. Using -nostartfiles instead avoids this problem, and
4299 ## will also work on earlier NetBSD releases.
4300 netbsd|openbsd) LD_FIRSTFLAG="-nostartfiles" ;;
4302 ## powerpc*: NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp> says
4303 ## MkLinux/LinuxPPC needs this.
4304 ## s390x-* only supports opsys = gnu-linux so it can be added here.
4306 case "$canonical" in
4307 powerpc*|s390x-*) LD_FIRSTFLAG="-nostdlib" ;;
4313 if test "x$ORDINARY_LINK" = "xyes"; then
4316 AC_DEFINE(ORDINARY_LINK, 1, [Define if the C compiler is the linker.])
4318 ## The system files defining neither ORDINARY_LINK nor LD_FIRSTFLAG are:
4319 ## freebsd, gnu-* not on powerpc*|s390x*.
4320 elif test "x$GCC" = "xyes" && test "x$LD_FIRSTFLAG" = "x"; then
4322 ## Versions of GCC >= 2.0 put their library, libgcc.a, in obscure
4323 ## places that are difficult to figure out at make time. Fortunately,
4324 ## these same versions allow you to pass arbitrary flags on to the
4325 ## linker, so there is no reason not to use it as a linker.
4327 ## Well, it is not quite perfect. The "-nostdlib" keeps GCC from
4328 ## searching for libraries in its internal directories, so we have to
4329 ## ask GCC explicitly where to find libgcc.a (LIB_GCC below).
4330 LD_FIRSTFLAG="-nostdlib"
4333 ## FIXME? What setting of EDIT_LDFLAGS should this have?
4334 test "$NS_IMPL_GNUSTEP" = "yes" && LD_FIRSTFLAG="-rdynamic"
4336 AC_SUBST(LD_FIRSTFLAG)
4339 ## FIXME? The logic here is not precisely the same as that above.
4340 ## There is no check here for a pre-defined LD_FIRSTFLAG.
4341 ## Should we only be setting LIB_GCC if LD ~ -nostdlib?
4343 if test "x$GCC" = "xyes" && test "x$ORDINARY_LINK" != "xyes"; then
4346 freebsd|netbsd|openbsd) LIB_GCC= ;;
4349 ## armin76@gentoo.org reported that the lgcc_s flag is necessary to
4350 ## build on ARM EABI under GNU/Linux. (Bug#5518)
4356 ## FIXME? s/gnu-linux.h used to define LIB_GCC as below, then
4357 ## immediately undefine it again and redefine it to empty.
4358 ## Was the C_SWITCH_X_SITE part really necessary?
4359 ## LIB_GCC=`$CC $C_SWITCH_X_SITE -print-libgcc-file-name`
4365 ## Ask GCC where to find libgcc.a.
4366 *) LIB_GCC=`$CC -print-libgcc-file-name 2> /dev/null` ;;
4371 ## Common for all window systems
4372 if test "$window_system" != "none"; then
4373 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4374 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4377 AC_SUBST(WINDOW_SYSTEM_OBJ)
4379 AH_TOP([/* GNU Emacs site configuration template file.
4381 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2012
4382 Free Software Foundation, Inc.
4384 This file is part of GNU Emacs.
4386 GNU Emacs is free software: you can redistribute it and/or modify
4387 it under the terms of the GNU General Public License as published by
4388 the Free Software Foundation, either version 3 of the License, or
4389 (at your option) any later version.
4391 GNU Emacs is distributed in the hope that it will be useful,
4392 but WITHOUT ANY WARRANTY; without even the implied warranty of
4393 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4394 GNU General Public License for more details.
4396 You should have received a copy of the GNU General Public License
4397 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4400 /* No code in Emacs #includes config.h twice, but some bits of code
4401 intended to work with other packages as well (like gmalloc.c)
4402 think they can include it as many times as they like. */
4403 #ifndef EMACS_CONFIG_H
4404 #define EMACS_CONFIG_H
4407 AH_BOTTOM([#include <conf_post.h>
4409 #endif /* EMACS_CONFIG_H */
4418 #### Report on what we decided to do.
4419 #### Report GTK as a toolkit, even if it doesn't use Xt.
4420 #### It makes printing result more understandable as using GTK sets
4421 #### toolkit_scroll_bars to yes by default.
4422 if test "${HAVE_GTK}" = "yes"; then
4423 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4427 Configured for \`${canonical}'.
4429 Where should the build process find the source code? ${srcdir}
4430 What compiler should emacs be built with? ${CC} ${CFLAGS}
4431 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4432 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4433 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4434 What window system should Emacs use? ${window_system}
4435 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4437 if test -n "${x_includes}"; then
4438 echo " Where do we find X Windows header files? ${x_includes}"
4440 echo " Where do we find X Windows header files? Standard dirs"
4442 if test -n "${x_libraries}"; then
4443 echo " Where do we find X Windows libraries? ${x_libraries}"
4445 echo " Where do we find X Windows libraries? Standard dirs"
4448 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4449 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4450 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4451 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4452 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4453 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4454 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4455 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4457 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4458 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4459 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4460 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4461 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4462 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4463 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4465 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4466 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4467 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4468 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4470 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4473 if test -n "${EMACSDATA}"; then
4474 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4476 if test -n "${EMACSDOC}"; then
4477 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4482 if test "$HAVE_NS" = "yes"; then
4484 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4485 The installed application will go to nextstep/Emacs.app and can be
4486 run or moved from there."
4487 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4488 echo "The application will be fully self-contained."
4490 echo "The lisp resources for the application will be installed under ${prefix}.
4491 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4492 to run if these resources are not installed."
4497 if test "${opsys}" = "cygwin"; then
4499 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4505 # Remove any trailing slashes in these variables.
4506 [test "${prefix}" != NONE &&
4507 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4508 test "${exec_prefix}" != NONE &&
4509 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4511 if test "$HAVE_NS" = "yes"; then
4512 if test "$NS_IMPL_GNUSTEP" = yes; then
4513 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4514 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4516 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4517 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4521 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4522 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4523 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4524 dnl (else you get "no `Makefile.am' found for any configure output").
4525 dnl This will work, but you get a config.status that is not quite right
4526 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4527 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4528 dnl it seems better to just live with the duplication.
4529 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile"
4531 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4532 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4533 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4534 leim/Makefile nextstep/Makefile])
4536 dnl test/ is not present in release tarfiles.
4537 opt_makefile=test/automated/Makefile
4539 if test -f "$srcdir/$opt_makefile.in"; then
4540 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4541 dnl Again, it's best not to use a variable. Though you can add
4542 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4543 AC_CONFIG_FILES([test/automated/Makefile])
4547 dnl admin/ may or may not be present.
4548 opt_makefile=admin/unidata/Makefile
4550 if test -f "$srcdir/$opt_makefile.in"; then
4551 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4552 AC_CONFIG_FILES([admin/unidata/Makefile])
4556 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4558 AC_SUBST(SUBDIR_MAKEFILES_IN)
4560 dnl Make the necessary directories, if they don't exist.
4561 AC_CONFIG_COMMANDS([mkdirs], [
4562 for dir in etc lisp ; do
4563 test -d ${dir} || mkdir ${dir}
4567 dnl You might wonder (I did) why epaths.h is generated by running make,
4568 dnl rather than just letting configure generate it from epaths.in.
4569 dnl One reason is that the various paths are not fully expanded (see above);
4570 dnl eg gamedir=${prefix}/var/games/emacs.
4571 dnl Secondly, the GNU Coding standards require that one should be able
4572 dnl to run `make prefix=/some/where/else' and override the values set
4573 dnl by configure. This also explains the `move-if-change' test and
4574 dnl the use of force in the `epaths-force' rule in Makefile.in.
4575 AC_CONFIG_COMMANDS([epaths], [
4576 echo creating src/epaths.h
4577 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4578 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS"])
4580 AC_CONFIG_COMMANDS([gdbinit], [
4581 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4582 echo creating src/.gdbinit
4583 echo "source $srcdir/src/.gdbinit" > src/.gdbinit