1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2013 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.3.50)
27 dnl This is the documented way to record the args passed to configure,
28 dnl rather than $ac_configure_args.
29 emacs_config_options="$@"
30 ## Add some environment variables, if they were passed via the environment
31 ## rather than on the command-line.
32 for var in CFLAGS CPPFLAGS LDFLAGS; do
33 case "$emacs_config_options" in
37 test x"$val" = x && continue
38 emacs_config_options="${emacs_config_options}${emacs_config_options:+ }$var=\"$val\""
41 AC_CONFIG_HEADER(src/config.h:src/config.in)
42 AC_CONFIG_SRCDIR(src/lisp.h)
43 AC_CONFIG_AUX_DIR(build-aux)
44 dnl Fairly arbitrary, older versions might work too.
45 AM_INIT_AUTOMAKE(1.11)
47 dnl Support for --program-prefix, --program-suffix and
48 dnl --program-transform-name options
51 dnl It is important that variables on the RHS not be expanded here,
52 dnl hence the single quotes. This is per the GNU coding standards, see
53 dnl (autoconf) Installation Directory Variables
54 dnl See also epaths.h below.
55 lispdir='${datadir}/emacs/${version}/lisp'
56 leimdir='${datadir}/emacs/${version}/leim'
57 standardlisppath='${lispdir}:${leimdir}'
58 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
59 '${datadir}/emacs/site-lisp'
60 lisppath='${locallisppath}:${standardlisppath}'
61 etcdir='${datadir}/emacs/${version}/etc'
62 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
63 etcdocdir='${datadir}/emacs/${version}/etc'
64 gamedir='${localstatedir}/games/emacs'
66 dnl Special option to disable the most of other options.
68 [AS_HELP_STRING([--without-all],
69 [omit almost all features and build
70 small executable with minimal dependencies])],
71 with_features=$withval,
74 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
75 dnl Create a new --with option that defaults to being disabled.
76 dnl NAME is the base name of the option. The shell variable with_NAME
77 dnl will be set to either the user's value (if the option is
78 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
79 dnl option is not specified). Note that the shell variable name is
80 dnl constructed as autoconf does, by replacing non-alphanumeric
81 dnl characters with "_".
82 dnl HELP-STRING is the help text for the option.
83 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
84 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
85 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
88 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
89 dnl Create a new --with option that defaults to $with_features.
90 dnl NAME is the base name of the option. The shell variable with_NAME
91 dnl will be set either to 'no' (for a plain --without-NAME) or to
92 dnl 'yes' (if the option is not specified). Note that the shell
93 dnl variable name is constructed as autoconf does, by replacing
94 dnl non-alphanumeric characters with "_".
95 dnl HELP-STRING is the help text for the option.
96 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
97 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
98 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
101 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
102 if test "$with_pop" = yes; then
103 AC_DEFINE(MAIL_USE_POP)
105 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
107 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
108 if test "$with_kerberos" != no; then
111 AH_TEMPLATE(KERBEROS,
112 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
114 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
115 if test "${with_kerberos5}" != no; then
116 if test "${with_kerberos}" = no; then
120 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
123 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
124 dnl FIXME hesiod support may not be present, so it seems like an error
125 dnl to define, or at least use, this unconditionally.
126 if test "$with_hesiod" != no; then
127 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
130 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
131 if test "$with_mmdf" != no; then
132 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
135 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
136 if test "$with_mail_unlink" != no; then
137 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
140 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
141 [string giving default POP mail host])],
142 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
144 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
145 [compile with sound support (VALUE one of: yes, ossaudio, alsa, no;
146 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
147 [ case "${withval}" in
148 yes|no|ossaudio|alsa) val=$withval ;;
149 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
150 this option's value should be `yes', `no', `ossaudio', or `alsa'.])
155 [with_sound=$with_features])
157 dnl FIXME currently it is not the last.
158 dnl This should be the last --with option, because --with-x is
159 dnl added later on when we find the file name of X, and it's best to
160 dnl keep them together visually.
161 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
162 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
163 [ case "${withval}" in
164 y | ye | yes ) val=gtk ;;
166 l | lu | luc | luci | lucid ) val=lucid ;;
167 a | at | ath | athe | athen | athena ) val=athena ;;
168 m | mo | mot | moti | motif ) val=motif ;;
169 g | gt | gtk ) val=gtk ;;
173 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
174 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
175 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
176 `athena' and `lucid' are synonyms.])
182 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
183 if test "$with_wide_int" = yes; then
184 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
187 dnl _ON results in a '--without' option in the --help output, so
188 dnl the help text should refer to "don't compile", etc.
189 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
190 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
191 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
192 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
193 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
194 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
195 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
196 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
198 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
199 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
200 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
202 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
203 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
204 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
205 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
206 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
208 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
209 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
210 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
211 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
212 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
213 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
214 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
216 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
217 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
218 [ case "${withval}" in
219 y | ye | yes ) val=yes ;;
221 g | gf | gfi | gfil | gfile ) val=gfile ;;
222 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
223 w | w3 | w32 ) val=w32 ;;
224 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
225 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
226 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
227 otherwise for the first of `gfile' or `inotify' that is usable.])
230 with_file_notification=$val
232 [with_file_notification=$with_features])
234 OPTION_DEFAULT_OFF([xwidgets],[enable use of some gtk widgets it Emacs buffers])
236 ## For the times when you want to build Emacs but don't have
237 ## a suitable makeinfo, and can live without the manuals.
238 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
239 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
241 ## Makefile.in needs the cache file name.
244 ## This is an option because I do not know if all info/man support
245 ## compressed files, nor how to test if they do so.
246 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
247 if test $with_compress_info = yes; then
254 AC_ARG_WITH([pkg-config-prog],dnl
255 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
256 [file name of pkg-config for finding GTK and librsvg])])
257 if test "X${with_pkg_config_prog}" != X; then
258 if test "${with_pkg_config_prog}" != yes; then
259 PKG_CONFIG="${with_pkg_config_prog}"
263 AC_ARG_WITH(gameuser,dnl
264 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
265 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
266 && gameuser="${with_gameuser}"
267 test "X$gameuser" = X && gameuser=games
269 AC_ARG_WITH([gnustep-conf],dnl
270 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
271 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
272 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
273 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
274 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
275 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
277 AC_ARG_ENABLE(ns-self-contained,
278 [AS_HELP_STRING([--disable-ns-self-contained],
279 [disable self contained build under NeXTstep])],
280 EN_NS_SELF_CONTAINED=$enableval,
281 EN_NS_SELF_CONTAINED=yes)
283 AC_ARG_ENABLE(locallisppath,
284 [AS_HELP_STRING([--enable-locallisppath=PATH],
285 [directories Emacs should search for lisp files specific
287 if test "${enableval}" = "no"; then
289 elif test "${enableval}" != "yes"; then
290 locallisppath=${enableval}
293 AC_ARG_ENABLE(checking,
294 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
295 [enable expensive run-time checks. With LIST,
296 enable only specific categories of checks.
297 Categories are: all,yes,no.
298 Flags are: stringbytes, stringoverrun, stringfreelist,
299 xmallocoverrun, conslist, glyphs])],
300 [ac_checking_flags="${enableval}"],[])
301 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
302 for check in $ac_checking_flags
305 # these set all the flags to specific states
306 yes) ac_enable_checking=1 ;;
307 no) ac_enable_checking= ;
308 ac_gc_check_stringbytes= ;
309 ac_gc_check_string_overrun= ;
310 ac_gc_check_string_free_list= ;
311 ac_xmalloc_overrun= ;
312 ac_gc_check_cons_list= ;
314 all) ac_enable_checking=1 ;
315 ac_gc_check_stringbytes=1 ;
316 ac_gc_check_string_overrun=1 ;
317 ac_gc_check_string_free_list=1 ;
318 ac_xmalloc_overrun=1 ;
319 ac_gc_check_cons_list=1 ;
321 # these enable particular checks
322 stringbytes) ac_gc_check_stringbytes=1 ;;
323 stringoverrun) ac_gc_check_string_overrun=1 ;;
324 stringfreelist) ac_gc_check_string_free_list=1 ;;
325 xmallocoverrun) ac_xmalloc_overrun=1 ;;
326 conslist) ac_gc_check_cons_list=1 ;;
327 glyphs) ac_glyphs_debug=1 ;;
328 *) AC_MSG_ERROR(unknown check category $check) ;;
333 if test x$ac_enable_checking != x ; then
334 AC_DEFINE(ENABLE_CHECKING, 1,
335 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
337 if test x$ac_gc_check_stringbytes != x ; then
338 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
339 [Define this temporarily to hunt a bug. If defined, the size of
340 strings is redundantly recorded in sdata structures so that it can
341 be compared to the sizes recorded in Lisp strings.])
343 if test x$ac_gc_check_string_overrun != x ; then
344 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
345 [Define this to check for short string overrun.])
347 if test x$ac_gc_check_string_free_list != x ; then
348 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
349 [Define this to check the string free list.])
351 if test x$ac_xmalloc_overrun != x ; then
352 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
353 [Define this to check for malloc buffer overrun.])
355 if test x$ac_gc_check_cons_list != x ; then
356 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
357 [Define this to check for errors in cons list.])
359 if test x$ac_glyphs_debug != x ; then
360 AC_DEFINE(GLYPH_DEBUG, 1,
361 [Define this to enable glyphs debugging code.])
364 AC_ARG_ENABLE(check-lisp-object-type,
365 [AS_HELP_STRING([--enable-check-lisp-object-type],
366 [enable compile time checks for the Lisp_Object data type.
367 This is useful for development for catching certain types of bugs.])],
368 if test "${enableval}" != "no"; then
369 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
370 [Define this to enable compile time checks for the Lisp_Object data type.])
374 dnl The name of this option is unfortunate. It predates, and has no
375 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
376 dnl Actually, it stops it working.
377 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
378 AC_ARG_ENABLE(profiling,
379 [AS_HELP_STRING([--enable-profiling],
380 [build emacs with low-level, gprof profiling support.
381 Mainly useful for debugging Emacs itself. May not work on
382 all platforms. Stops profiler.el working.])],
383 [ac_enable_profiling="${enableval}"],[])
384 if test x$ac_enable_profiling != x ; then
385 PROFILING_CFLAGS="-DPROFILING=1 -pg"
389 AC_SUBST(PROFILING_CFLAGS)
391 AC_ARG_ENABLE(autodepend,
392 [AS_HELP_STRING([--enable-autodepend],
393 [automatically generate dependencies to .h-files.
394 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
396 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
398 AC_ARG_ENABLE(gtk-deprecation-warnings,
399 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
400 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
401 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
403 #### Make srcdir absolute, if it isn't already. It's important to
404 #### avoid running the file name through pwd unnecessarily, since pwd can
405 #### give you automounter prefixes, which can go away. We do all this
406 #### so Emacs can find its files when run uninstalled.
407 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
410 [[\\/]]* | ?:[[\\/]]*) ;;
412 ## We may be able to use the $PWD environment variable to make this
413 ## absolute. But sometimes PWD is inaccurate.
414 ## Note: we used to use $PWD at the end instead of `pwd`,
415 ## but that tested only for a well-formed and valid PWD,
416 ## it did not object when PWD was well-formed and valid but just wrong.
417 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
421 srcdir=`(cd "$srcdir"; pwd)`
424 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
427 ### Canonicalize the configuration name.
431 configuration=${host_alias-${build_alias-$host}}
433 dnl This used to use changequote, but, apart from `changequote is evil'
434 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
435 dnl the great gob of text. Thus it's not processed for possible expansion.
436 dnl Just make sure the brackets remain balanced.
438 dnl Since Emacs can't find matching pairs of quotes, boundaries are
439 dnl indicated by comments.
443 ### If you add support for a new configuration, add code to this
444 ### switch statement to recognize your configuration name and select
445 ### the appropriate operating system file.
447 ### You would hope that you could choose an s/*.h
448 ### file based on the operating system portion. However, it turns out
449 ### that each s/*.h file is pretty manufacturer-specific.
450 ### So we basically have to have a special case for each
451 ### configuration name.
453 ### As far as handling version numbers on operating systems is
454 ### concerned, make sure things will fail in a fixable way. If
455 ### /etc/MACHINES doesn't say anything about version numbers, be
456 ### prepared to handle anything reasonably. If version numbers
457 ### matter, be sure /etc/MACHINES says something about it.
460 case "${canonical}" in
462 ## GNU/Linux and similar ports
477 ## FreeBSD kernel + glibc based userland
492 ## Apple Darwin / Mac OS X
494 case "${canonical}" in
501 ## Use fink packages if available.
502 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
503 ## if test -d /sw/include && test -d /sw/lib; then
504 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
505 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
514 ## HP 9000 series 700 and 800, running HP/UX
518 hppa*-hp-hpux1[1-9]* )
520 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
524 rs6000-ibm-aix4.[23]* )
527 powerpc-ibm-aix4.[23]* )
530 rs6000-ibm-aix[56]* )
533 powerpc-ibm-aix[56]* )
537 ## Silicon Graphics machines
541 # Without defining _LANGUAGE_C, things get masked out in the headers
542 # so that, for instance, grepping for `free' in stdlib.h fails and
543 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
544 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
549 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
550 | x86_64-*-solaris2* | x86_64-*-sunos5*)
551 case "${canonical}" in
553 amd64-*-*|x86_64-*-*) ;;
557 case "${canonical}" in
558 *-sunos5.6* | *-solaris2.6* )
562 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
564 emacs_check_sunpro_c=yes
566 *-sunos5* | *-solaris* )
568 emacs_check_sunpro_c=yes
571 ## Watch out for a compiler that we know will not work.
572 case "${canonical}" in
573 *-solaris* | *-sunos5* )
574 if [ "x$CC" = x/usr/ucb/cc ]; then
575 ## /usr/ucb/cc doesn't work;
576 ## we should find some other compiler that does work.
584 ## Intel 386 machines where we don't care about the manufacturer.
586 case "${canonical}" in
587 *-darwin* ) opsys=darwin ;;
590 # MinGW overrides and adds some system headers in nt/inc.
591 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
593 *-sysv4.2uw* ) opsys=unixware ;;
594 *-sysv5uw* ) opsys=unixware ;;
595 *-sysv5OpenUNIX* ) opsys=unixware ;;
596 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
605 ### If the code above didn't choose an operating system, just choose
606 ### an operating system based on the configuration name. You really
607 ### only want to use this when you have no idea what the right
608 ### operating system is; if you know what operating systems a machine
609 ### runs, it's cleaner to make it explicit in the case statement
611 if test x"${opsys}" = x; then
612 case "${canonical}" in
613 *-gnu* ) opsys=gnu ;;
623 if test $unported = yes; then
624 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
625 Check `etc/MACHINES' for recognized configuration names.])
629 #### Choose a compiler.
631 dnl Sets GCC=yes if using gcc.
635 if test x$GCC = xyes; then
636 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
638 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
641 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
642 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
643 dnl that clash with MinGW.
644 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
646 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
647 # as we don't use them.
648 AC_DEFUN([gl_FCNTL_O_FLAGS])
649 # Avoid gnulib's threadlib module, as we do threads our own way.
650 AC_DEFUN([gl_THREADLIB])
652 # Initialize gnulib right after choosing the compiler.
653 dnl Amongst other things, this sets AR and ARFLAGS.
656 if test "$ac_test_CFLAGS" != set; then
657 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
658 # if -g3 works and the user does not specify CFLAGS.
659 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
662 emacs_g3_CFLAGS='-g3';;
664 emacs_g3_CFLAGS='-g3 -O2';;
668 if test -n "$emacs_g3_CFLAGS"; then
669 emacs_save_CFLAGS=$CFLAGS
670 CFLAGS=$emacs_g3_CFLAGS
671 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
672 [emacs_cv_prog_cc_g3],
673 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
674 [emacs_cv_prog_cc_g3=yes],
675 [emacs_cv_prog_cc_g3=no])])
676 if test $emacs_cv_prog_cc_g3 != yes; then
677 CFLAGS=$emacs_save_CFLAGS
679 if test $opsys = mingw32; then
680 CFLAGS="$CFLAGS -gdwarf-2"
687 # No optimization flag was inferred for this non-GCC compiler.
688 # Try -O. This is needed for xlc on AIX; see Bug#14258.
689 emacs_save_CFLAGS=$CFLAGS
690 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
692 AC_CACHE_CHECK([whether $CC accepts -O],
693 [emacs_cv_prog_cc_o],
694 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
695 [emacs_cv_prog_cc_o=yes],
696 [emacs_cv_prog_cc_o=no])])
697 if test $emacs_cv_prog_cc_o != yes; then
698 CFLAGS=$emacs_save_CFLAGS
703 AC_ARG_ENABLE([gcc-warnings],
704 [AS_HELP_STRING([--enable-gcc-warnings],
705 [turn on lots of GCC warnings/errors. This is intended for
706 developers, and may generate false alarms when used
707 with older or non-GNU development tools.])],
710 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
712 gl_gcc_warnings=$enableval],
716 AC_ARG_ENABLE(link-time-optimization,
717 [AS_HELP_STRING([--enable-link-time-optimization],
718 [build emacs with link-time optimization.
719 This is supported only for GCC since 4.5.0.])],
720 if test "${enableval}" != "no"; then
721 AC_MSG_CHECKING([whether link-time optimization is supported])
723 if test x$GCC = xyes; then
724 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
725 if test x$CPUS != x; then
731 CFLAGS="$CFLAGS $LTO"
732 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
733 [ac_lto_supported=yes], [ac_lto_supported=no])
736 AC_MSG_RESULT([$ac_lto_supported])
737 if test "$ac_lto_supported" = "yes"; then
738 CFLAGS="$CFLAGS $LTO"
742 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
743 # ------------------------------------------------
744 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
745 # Otherwise, run RUN-IF-NOT-FOUND.
746 AC_DEFUN([gl_GCC_VERSION_IFELSE],
750 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
753 # error "your version of gcc is older than $1.$2"
760 # When compiling with GCC, prefer -isystem to -I when including system
761 # include files, to avoid generating useless diagnostics for the files.
762 if test "$gl_gcc_warnings" != yes; then
767 # This, $nw, is the list of warnings we disable.
770 case $with_x_toolkit in
771 lucid | athena | motif)
772 # Old toolkits mishandle 'const'.
773 nw="$nw -Wwrite-strings"
776 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
779 AC_SUBST([WERROR_CFLAGS])
781 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
782 nw="$nw -Woverlength-strings" # Not a problem these days
783 nw="$nw -Wlogical-op" # any use of fwrite provokes this
784 nw="$nw -Wformat-nonliteral" # we do this a lot
785 nw="$nw -Wvla" # warnings in gettext.h
786 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
787 nw="$nw -Wswitch-default" # Too many warnings for now
788 nw="$nw -Winline" # OK to ignore 'inline'
789 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
790 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
791 # signed overflow has undefined behavior
792 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
793 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
794 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
796 # Emacs doesn't care about shadowing; see
797 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
800 # Emacs's use of alloca inhibits protecting the stack.
801 nw="$nw -Wstack-protector"
803 # The following line should be removable at some point.
804 nw="$nw -Wsuggest-attribute=pure"
806 # clang is unduly picky about some things.
807 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
814 [emacs_cv_clang=yes],
815 [emacs_cv_clang=no])])
816 if test $emacs_cv_clang = yes; then
817 nw="$nw -Wcast-align"
820 gl_MANYWARN_ALL_GCC([ws])
821 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
825 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
826 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
827 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
828 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
829 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
830 gl_WARN_ADD([-Wno-format-nonliteral])
832 # In spite of excluding -Wlogical-op above, it is enabled, as of
833 # gcc 4.5.0 20090517.
834 gl_WARN_ADD([-Wno-logical-op])
836 # More things that clang is unduly picky about.
837 if test $emacs_cv_clang = yes; then
838 gl_WARN_ADD([-Wno-format-extra-args])
839 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
840 gl_WARN_ADD([-Wno-unused-command-line-argument])
841 gl_WARN_ADD([-Wno-unused-value])
844 gl_WARN_ADD([-fdiagnostics-show-option])
845 gl_WARN_ADD([-funit-at-a-time])
847 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
848 AH_VERBATIM([FORTIFY_SOURCE],
849 [/* Enable compile-time and run-time bounds-checking, and some warnings,
850 without upsetting glibc 2.15+. */
851 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
852 # define _FORTIFY_SOURCE 2
855 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
857 # We use a slightly smaller set of warning options for lib/.
858 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
860 nw="$nw -Wunused-macros"
862 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
863 AC_SUBST([GNULIB_WARN_CFLAGS])
868 dnl Some other nice autoconf tests.
869 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
872 dnl if test "x$RANLIB" = x; then
877 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
878 dnl can be made to directories. This is not relevant for our usage, and
879 dnl excludes some cases that work fine for us. Eg MS Windows or files
880 dnl hosted on AFS, both examples where simple links work, but links to
881 dnl directories fail. We use a cut-down version instead.
884 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
885 rm -f conf$$ conf$$.file
887 LN_S_FILEONLY='cp -p'
889 if (echo >conf$$.file) 2>/dev/null; then
890 if ln -s conf$$.file conf$$ 2>/dev/null; then
891 LN_S_FILEONLY='ln -s'
892 elif ln conf$$.file conf$$ 2>/dev/null; then
897 rm -f conf$$ conf$$.file
899 if test "$LN_S_FILEONLY" = "ln -s"; then
902 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
905 AC_SUBST(LN_S_FILEONLY)
908 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
909 dnl doesn't support links to directories, as in "ln file dir". But that
910 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
911 dnl executables at "make install" time.
912 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
913 dnl for more details.
914 if test "$opsys" = "mingw32"; then
918 AC_PATH_PROG(INSTALL_INFO, install-info, :,
919 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
920 dnl Don't use GZIP, which is used by gzip for additional parameters.
921 AC_PATH_PROG(GZIP_PROG, gzip)
923 if test $opsys = gnu-linux; then
924 AC_PATH_PROG(PAXCTL, paxctl,,
925 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
926 if test "X$PAXCTL" != X; then
927 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
928 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
929 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
930 else AC_MSG_RESULT(no); PAXCTL=""; fi])
934 ## Need makeinfo >= 4.7 (?) to build the manuals.
935 AC_PATH_PROG(MAKEINFO, makeinfo, no)
936 dnl By this stage, configure has already checked for egrep and set EGREP,
937 dnl or exited with an error if no egrep was found.
938 if test "$MAKEINFO" != "no"; then
940 $MAKEINFO --version 2> /dev/null |
941 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
947 ## Makeinfo is unusual. For a released Emacs, the manuals are
948 ## pre-built, and not deleted by the normal clean rules. makeinfo is
949 ## therefore in the category of "special tools" not normally required, which
950 ## configure does not have to check for (eg autoconf itself).
951 ## In a Bazaar checkout on the other hand, the manuals are not included.
952 ## So makeinfo is a requirement to build from Bazaar, and configure
953 ## should test for it as it does for any other build requirement.
954 ## We use the presence of $srcdir/info/emacs to distinguish a release,
955 ## with pre-built manuals, from a Bazaar checkout.
958 if test "$MAKEINFO" = "no"; then
960 if test "x${with_makeinfo}" = "xno"; then
962 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
963 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
964 source tree does not seem to have pre-built manuals in the `info' directory.
965 Either install a suitable version of makeinfo, or re-run configure
966 with the `--without-makeinfo' option to build without the manuals.] )
969 AC_SUBST(HAVE_MAKEINFO)
971 dnl Just so that there is only a single place we need to edit.
977 dnl Add our options to ac_link now, after it is set up.
979 if test x$GCC = xyes; then
980 test "x$GCC_LINK_TEST_OPTIONS" != x && \
981 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
983 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
984 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
987 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
988 dnl If we can link with the flag, it shouldn't do any harm anyhow.
989 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
990 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
991 dnl if not built to support GNU ld.
993 late_LDFLAGS=$LDFLAGS
994 if test x$GCC = xyes; then
995 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
997 LDFLAGS="$LDFLAGS -znocombreloc"
1000 AC_MSG_CHECKING([for -znocombreloc])
1001 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1002 [AC_MSG_RESULT(yes)],
1003 LDFLAGS=$late_LDFLAGS
1004 [AC_MSG_RESULT(no)])
1007 dnl The function dump-emacs will not be defined and temacs will do
1008 dnl (load "loadup") automatically unless told otherwise.
1009 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1011 your-opsys-here) CANNOT_DUMP=yes ;;
1014 test "$CANNOT_DUMP" = "yes" && \
1015 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1017 AC_SUBST(CANNOT_DUMP)
1020 UNEXEC_OBJ=unexelf.o
1022 # MSDOS uses unexcoff.o
1024 UNEXEC_OBJ=unexaix.o
1030 UNEXEC_OBJ=unexmacosx.o
1033 UNEXEC_OBJ=unexhp9k800.o
1036 UNEXEC_OBJ=unexw32.o
1039 # Use the Solaris dldump() function, called from unexsol.c, to dump
1040 # emacs, instead of the generic ELF dump code found in unexelf.c.
1041 # The resulting binary has a complete symbol table, and is better
1042 # for debugging and other observability tools (debuggers, pstack, etc).
1044 # If you encounter a problem using dldump(), please consider sending
1045 # a message to the OpenSolaris tools-linking mailing list:
1046 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1048 # It is likely that dldump() works with older Solaris too, but this has
1049 # not been tested, so for now this change is for Solaris 10 or newer.
1050 UNEXEC_OBJ=unexsol.o
1057 ## Let `ld' find image libs and similar things in /usr/local/lib.
1058 ## The system compiler, GCC, has apparently been modified to not
1059 ## look there, contrary to what a stock GCC would do.
1060 ### It's not our place to do this. See bug#10313#17.
1061 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1066 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1067 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1071 ### It's not our place to do this. See bug#10313#17.
1072 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1077 ## Han Boetes <han@boetes.org> says this is necessary,
1078 ## otherwise Emacs dumps core on elf systems.
1079 LD_SWITCH_SYSTEM="-Z"
1082 AC_SUBST(LD_SWITCH_SYSTEM)
1084 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1086 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1087 ## which has not been defined yet. When this was handled with cpp,
1088 ## it was expanded to null when configure sourced the s/*.h file.
1089 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1090 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1091 ## (or somesuch), but because it is supposed to go at the _front_
1092 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1093 ## Compare with the gnu-linux case below, which added to the end
1094 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1095 ## LD_SWITCH_SYSTEM_TEMACS.
1098 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1105 AC_CHECK_DECL([__ELF__])
1106 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1107 ## With ELF, make sure that all common symbols get allocated to in the
1108 ## data section. Otherwise, the dump of temacs may miss variables in
1109 ## the shared library that have been initialized. For example, with
1110 ## GNU libc, __malloc_initialized would normally be resolved to the
1111 ## shared library's .bss section, which is fatal.
1112 if test "x$GCC" = "xyes"; then
1113 C_SWITCH_MACHINE="-fno-common"
1115 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1118 UNEXEC_OBJ=unexalpha.o
1122 AC_SUBST(C_SWITCH_MACHINE)
1124 AC_SUBST(UNEXEC_OBJ)
1127 ## Some programs in src produce warnings saying certain subprograms
1128 ## are too complex and need a MAXMEM value greater than 2000 for
1129 ## additional optimization. --nils@exp-math.uni-essen.de
1130 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1131 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1132 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1133 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1134 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1135 AC_SUBST(C_SWITCH_SYSTEM)
1140 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1141 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1143 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1145 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1147 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1149 ## Motif needs -lgen.
1150 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1153 AC_SUBST(LIBS_SYSTEM)
1155 ### Make sure subsequent tests use flags consistent with the build flags.
1157 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1158 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1160 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1163 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1164 AC_DEFUN([AC_TYPE_SIZE_T])
1165 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1166 AC_DEFUN([AC_TYPE_UID_T])
1170 dnl Current possibilities handled by sed (aix4-2 -> aix,
1171 dnl gnu-linux -> gnu/linux, etc.):
1172 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1173 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1174 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1181 ## Adding -lm confuses the dynamic linker, so omit it.
1184 freebsd | dragonfly )
1185 SYSTEM_TYPE=berkeley-unix
1187 gnu-linux | gnu-kfreebsd )
1189 hpux10-20 | hpux11 )
1193 SYSTEM_TYPE=windows-nt
1195 dnl NB this may be adjusted below.
1197 SYSTEM_TYPE=berkeley-unix
1201 SYSTEM_TYPE=usg-unix-v
1207 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1208 [The type of system you are compiling for; sets `system-type'.])
1211 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1212 pre_PKG_CONFIG_LIBS=$LIBS
1214 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1216 dnl This function definition taken from Gnome 2.0
1217 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1218 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1219 dnl also defines GSTUFF_PKG_ERRORS on error
1220 AC_DEFUN([PKG_CHECK_MODULES], [
1223 if test "$PKG_CONFIG" = "no" ; then
1224 ifelse([$4], , [AC_MSG_ERROR([
1225 *** 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])
1227 PKG_CONFIG_MIN_VERSION=0.9.0
1228 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1229 AC_MSG_CHECKING(for $2)
1231 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1232 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1233 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1240 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1241 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1242 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1248 ## If we have a custom action on failure, don't print errors, but
1249 ## do set a variable so people can do so. Do it in a subshell
1250 ## to capture any diagnostics in invoking pkg-config.
1251 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1252 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1258 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1259 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1263 if test $succeeded = yes; then
1264 ifelse([$3], , :, [$3])
1266 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.])], [$4])
1271 if test "${with_sound}" != "no"; then
1272 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1273 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1274 have_sound_header=yes, [], [
1276 #define WIN32_LEAN_AND_MEAN
1277 #include <windows.h>
1280 if test "${with_sound}" = "ossaudio" || test "${with_sound}" = "yes"; then
1281 # Emulation library used on NetBSD.
1282 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1283 test "${with_sound}" = "ossaudio" && test -z "$LIBSOUND" && \
1284 AC_MSG_ERROR([ossaudio sound support requested but not found.])
1285 dnl FIXME? If we did find ossaudio, should we set with_sound=ossaudio?
1286 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1290 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1292 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1293 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1294 if test $HAVE_ALSA = yes; then
1295 SAVE_CFLAGS="$CFLAGS"
1297 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1298 LIBS="$ALSA_LIBS $LIBS"
1299 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1300 emacs_alsa_normal=yes,
1301 emacs_alsa_normal=no)
1302 if test "$emacs_alsa_normal" != yes; then
1303 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1304 [[snd_lib_error_set_handler (0);]])],
1305 emacs_alsa_subdir=yes,
1306 emacs_alsa_subdir=no)
1307 if test "$emacs_alsa_subdir" != yes; then
1308 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1310 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1313 CFLAGS="$SAVE_CFLAGS"
1315 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1316 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1317 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1318 elif test "${with_sound}" = "alsa"; then
1319 AC_MSG_ERROR([ALSA sound support requested but not found.])
1321 fi dnl with_sound = alsa|yes
1323 dnl Define HAVE_SOUND if we have sound support. We know it works and
1324 dnl compiles only on the specified platforms. For others, it
1325 dnl probably doesn't make sense to try.
1326 dnl FIXME So surely we should bypass this whole section if not using
1327 dnl one of these platforms?
1328 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1330 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1331 dnl Adjust the --with-sound help text if you change this.
1332 gnu-linux|freebsd|netbsd|mingw32)
1333 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1339 AC_SUBST(CFLAGS_SOUND)
1342 dnl checks for header files
1343 AC_CHECK_HEADERS_ONCE(
1347 sys/utsname.h pwd.h utmp.h util.h)
1349 AC_MSG_CHECKING(if personality LINUX32 can be set)
1350 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1351 emacs_cv_personality_linux32=yes,
1352 emacs_cv_personality_linux32=no)
1353 AC_MSG_RESULT($emacs_cv_personality_linux32)
1355 if test $emacs_cv_personality_linux32 = yes; then
1356 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1357 [Define to 1 if personality LINUX32 can be set.])
1360 dnl On Solaris 8 there's a compilation warning for term.h because
1361 dnl it doesn't define `bool'.
1362 AC_CHECK_HEADERS(term.h, , , -)
1364 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1366 if test $ac_cv_have_decl_sys_siglist != yes; then
1367 # For Tru64, at least:
1368 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1373 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1374 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1375 #if HAVE_SYS_SOCKET_H
1376 #include <sys/socket.h>
1378 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1379 #if HAVE_SYS_SOCKET_H
1380 #include <sys/socket.h>
1382 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1383 #if HAVE_SYS_SOCKET_H
1384 #include <sys/socket.h>
1387 dnl checks for structure members
1388 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1389 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1390 struct ifreq.ifr_addr,
1391 struct ifreq.ifr_addr.sa_len], , ,
1392 [AC_INCLUDES_DEFAULT
1393 #if HAVE_SYS_SOCKET_H
1394 #include <sys/socket.h>
1400 dnl Check for endianness.
1401 dnl AC_C_BIGENDIAN is done by gnulib.
1403 dnl check for Make feature
1404 dnl AC_PROG_MAKE_SET is done by Automake.
1409 dnl check for GNU Make if we have GCC and autodepend is on.
1410 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1411 AC_MSG_CHECKING([whether we are using GNU Make])
1413 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1414 if test "x$testval" != x; then
1417 ac_enable_autodepend=no
1419 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1420 if test $HAVE_GNU_MAKE = yes; then
1421 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1422 SAVE_CFLAGS="$CFLAGS"
1423 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1424 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1425 CFLAGS="$SAVE_CFLAGS"
1426 test -f deps.d || ac_enable_autodepend=no
1428 AC_MSG_RESULT([$ac_enable_autodepend])
1430 if test $ac_enable_autodepend = yes; then
1431 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1432 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1433 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1434 deps_frag=autodeps.mk
1437 deps_frag=$srcdir/src/$deps_frag
1440 AC_SUBST_FILE(deps_frag)
1443 lisp_frag=$srcdir/src/lisp.mk
1444 AC_SUBST_FILE(lisp_frag)
1447 dnl checks for operating system services
1448 AC_SYS_LONG_FILE_NAMES
1450 #### Choose a window system.
1452 ## We leave window_system equal to none if
1453 ## we end up building without one. Any new window system should
1454 ## set window_system to an appropriate value and add objects to
1455 ## window-system-specific substs.
1459 if test "$no_x" != yes; then
1463 LD_SWITCH_X_SITE_RPATH=
1464 if test "${x_libraries}" != NONE; then
1465 if test -n "${x_libraries}"; then
1466 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1467 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1469 x_default_search_path=""
1470 x_search_path=${x_libraries}
1471 if test -z "${x_search_path}"; then
1472 x_search_path=/usr/lib
1474 for x_library in `echo ${x_search_path}: | \
1475 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1477 ${x_library}/X11/%L/%T/%N%C%S:\
1478 ${x_library}/X11/%l/%T/%N%C%S:\
1479 ${x_library}/X11/%T/%N%C%S:\
1480 ${x_library}/X11/%L/%T/%N%S:\
1481 ${x_library}/X11/%l/%T/%N%S:\
1482 ${x_library}/X11/%T/%N%S"
1483 if test x"${x_default_search_path}" = x; then
1484 x_default_search_path=${x_search_path}
1486 x_default_search_path="${x_search_path}:${x_default_search_path}"
1490 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1492 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1493 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1496 if test x"${x_includes}" = x; then
1497 bitmapdir=/usr/include/X11/bitmaps
1499 # accumulate include directories that have X11 bitmap subdirectories
1501 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1502 if test -d "${bmd}/X11/bitmaps"; then
1503 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1505 if test -d "${bmd}/bitmaps"; then
1506 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1509 if test ${bmd_acc} != "dummyval"; then
1510 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1517 tmp_CPPFLAGS="$CPPFLAGS"
1518 tmp_CFLAGS="$CFLAGS"
1519 CPPFLAGS="$CPPFLAGS -x objective-c"
1520 CFLAGS="$CFLAGS -x objective-c"
1523 if test "${with_ns}" != no; then
1524 if test "${opsys}" = darwin; then
1526 ns_appdir=`pwd`/nextstep/Emacs.app
1527 ns_appbindir=${ns_appdir}/Contents/MacOS
1528 ns_appresdir=${ns_appdir}/Contents/Resources
1529 ns_appsrc=Cocoa/Emacs.base
1530 elif test -f $GNUSTEP_CONFIG_FILE; then
1532 ns_appdir=`pwd`/nextstep/Emacs.app
1533 ns_appbindir=${ns_appdir}
1534 ns_appresdir=${ns_appdir}/Resources
1535 ns_appsrc=GNUstep/Emacs.base
1536 dnl FIXME sourcing this several times in subshells seems inefficient.
1537 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1538 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1539 dnl I seemed to need these as well with GNUstep-startup 0.25.
1540 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1541 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1542 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1543 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1544 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1545 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1546 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1547 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1548 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1549 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1550 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1551 dnl If they had chosen to either define it or not, we could have
1552 dnl just used AC_CHECK_DECL here.
1553 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1554 emacs_cv_objc_exceptions,
1555 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1556 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1560 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1561 if test $emacs_cv_objc_exceptions = yes; then
1562 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1563 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1564 [Define if GNUstep uses ObjC exceptions.])
1565 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1569 dnl This is only used while we test the NS headers, it gets reset below.
1570 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1572 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1573 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1574 files are missing or cannot be compiled.])])
1576 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1578 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1579 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1582 #error "OSX 10.4 or newer required"
1586 ns_osx_have_104=yes,
1588 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1590 ns_have_nsinteger=yes,
1591 ns_have_nsinteger=no)
1592 if test $ns_osx_have_104 = no; then
1593 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1595 if test $ns_have_nsinteger = yes; then
1596 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1600 AC_SUBST(LIBS_GNUSTEP)
1602 INSTALL_ARCH_INDEP_EXTRA=install-etc
1603 ns_self_contained=no
1606 if test "${HAVE_NS}" = yes; then
1607 if test "$with_toolkit_scroll_bars" = "no"; then
1608 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1611 window_system=nextstep
1612 # set up packaging dirs
1613 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1614 ns_self_contained=yes
1615 prefix=${ns_appresdir}
1616 exec_prefix=${ns_appbindir}
1617 dnl This one isn't really used, only archlibdir is.
1618 libexecdir="\${ns_appbindir}/libexec"
1619 archlibdir="\${ns_appbindir}/libexec"
1620 etcdocdir="\${ns_appresdir}/etc"
1621 etcdir="\${ns_appresdir}/etc"
1622 dnl FIXME maybe set datarootdir instead.
1623 dnl That would also get applications, icons, man.
1624 infodir="\${ns_appresdir}/info"
1625 mandir="\${ns_appresdir}/man"
1626 lispdir="\${ns_appresdir}/lisp"
1627 leimdir="\${ns_appresdir}/leim"
1628 INSTALL_ARCH_INDEP_EXTRA=
1630 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1632 CFLAGS="$tmp_CFLAGS"
1633 CPPFLAGS="$tmp_CPPFLAGS"
1634 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1635 AC_SUBST(ns_self_contained)
1637 AC_SUBST(NS_OBJC_OBJ)
1648 if test "${with_w32}" != no; then
1651 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1652 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1653 cannot be found.])])
1656 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1659 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1664 if test "${opsys}" = "mingw32"; then
1665 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1666 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1667 #include <windows.h>
1668 #include <usp10.h>]],
1669 [[PIMAGE_NT_HEADERS pHeader;
1670 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1671 [emacs_cv_w32api=yes
1674 AC_MSG_RESULT($emacs_cv_w32api)
1675 if test "${emacs_cv_w32api}" = "no"; then
1676 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1687 if test "${HAVE_W32}" = "yes"; then
1688 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1689 AC_CHECK_TOOL(WINDRES, [windres],
1690 [AC_MSG_ERROR([No resource compiler found.])])
1691 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1692 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1693 EMACSRES="emacs.res"
1694 case "$canonical" in
1695 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1696 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1698 UPDATE_MANIFEST=update-game-score.exe.manifest
1699 if test "${opsys}" = "cygwin"; then
1700 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1701 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1702 # Tell the linker that emacs.res is an object (which we compile from
1703 # the rc file), not a linker script.
1704 W32_RES_LINK="-Wl,emacs.res"
1706 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1707 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1708 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1709 W32_RES_LINK="\$(EMACSRES)"
1710 CLIENTRES="emacsclient.res"
1711 CLIENTW="emacsclientw\$(EXEEXT)"
1712 FIRSTFILE_OBJ=firstfile.o
1715 LIBS_ECLIENT="-lcomctl32"
1716 LIB_WSOCK32="-lwsock32"
1717 NTLIB="ntlib.$ac_objext"
1718 XARGS_LIMIT="-s 10000"
1724 AC_SUBST(EMACS_MANIFEST)
1725 AC_SUBST(UPDATE_MANIFEST)
1728 AC_SUBST(W32_RES_LINK)
1729 AC_SUBST(FIRSTFILE_OBJ)
1732 AC_SUBST(LIBS_ECLIENT)
1733 AC_SUBST(LIB_WSOCK32)
1735 AC_SUBST(XARGS_LIMIT)
1737 if test "${HAVE_W32}" = "yes"; then
1742 ## $window_system is now set to the window system we will
1750 case "${window_system}" in
1755 case "${with_x_toolkit}" in
1756 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1757 motif ) USE_X_TOOLKIT=MOTIF ;;
1759 term_header=gtkutil.h
1760 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1761 dnl USE_X_TOOLKIT is set.
1762 USE_X_TOOLKIT=none ;;
1763 gtk2 ) with_gtk2=yes
1764 term_header=gtkutil.h
1765 USE_X_TOOLKIT=none ;;
1766 gtk3 ) with_gtk3=yes
1767 term_header=gtkutil.h
1768 USE_X_TOOLKIT=none ;;
1769 no ) USE_X_TOOLKIT=none ;;
1770 dnl If user did not say whether to use a toolkit, make this decision later:
1771 dnl use the toolkit if we have gtk, or X11R5 or newer.
1772 * ) USE_X_TOOLKIT=maybe ;;
1776 term_header=nsterm.h
1779 term_header=w32term.h
1783 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1784 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1785 if test "$HAVE_XSERVER" = true ||
1786 test -n "$DISPLAY" ||
1787 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1788 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1789 were found. You should install the relevant development files for X
1790 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1791 sure you have development files for image handling, i.e.
1792 tiff, gif, jpeg, png and xpm.
1793 If you are sure you want Emacs compiled without X window support, pass
1799 ### If we're using X11, we should use the X menu package.
1802 yes ) HAVE_MENUS=yes ;;
1805 # Does the opsystem file prohibit the use of the GNU malloc?
1806 # Assume not, until told otherwise.
1810 [whether malloc is Doug Lea style],
1811 [emacs_cv_var_doug_lea_malloc],
1814 [[#include <malloc.h>
1815 static void hook (void) {}]],
1816 [[malloc_set_state (malloc_get_state ());
1817 __after_morecore_hook = hook;
1818 __malloc_initialize_hook = hook;]])],
1819 [emacs_cv_var_doug_lea_malloc=yes],
1820 [emacs_cv_var_doug_lea_malloc=no])])
1821 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1824 dnl See comments in aix4-2.h about maybe using system malloc there.
1827 ## darwin ld insists on the use of malloc routines in the System framework.
1828 darwin|sol2-10) system_malloc=yes ;;
1831 if test "${system_malloc}" = "yes"; then
1832 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1835 (The GNU allocators don't work with this system configuration.)"
1839 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1840 VMLIMIT_OBJ=vm-limit.o
1842 AC_CHECK_HEADERS([sys/vlimit.h])
1843 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1846 [[extern char data_start[]; char ch;]],
1847 [[return data_start < &ch;]])],
1848 [emacs_cv_data_start=yes],
1849 [emacs_cv_data_start=no])])
1850 if test $emacs_cv_data_start = yes; then
1851 AC_DEFINE([HAVE_DATA_START], 1,
1852 [Define to 1 if data_start is the address of the start
1853 of the main data segment.])
1856 AC_SUBST(GMALLOC_OBJ)
1857 AC_SUBST(VMLIMIT_OBJ)
1859 if test "$doug_lea_malloc" = "yes" ; then
1860 if test "$GNU_MALLOC" = yes ; then
1862 (Using Doug Lea's new malloc from the GNU C Library.)"
1864 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1865 [Define to 1 if you are using the GNU C Library.])
1867 ## Use mmap directly for allocating larger buffers.
1868 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1869 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1870 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1872 gnu*) REL_ALLOC=no ;;
1876 if test x"${REL_ALLOC}" = x; then
1877 REL_ALLOC=${GNU_MALLOC}
1880 use_mmap_for_buffers=no
1882 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1886 if test $use_mmap_for_buffers = yes; then
1887 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1891 LIBS="$LIBS_SYSTEM $LIBS"
1893 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1894 AC_CHECK_LIB(dnet, dnet_ntoa)
1895 dnl This causes -lresolv to get used in subsequent tests,
1896 dnl which causes failures on some systems such as HPUX 9.
1897 dnl AC_CHECK_LIB(resolv, gethostbyname)
1899 dnl FIXME replace main with a function we actually want from this library.
1900 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1902 dnl Check if pthreads is available.
1904 AC_CHECK_HEADERS_ONCE(pthread.h)
1905 if test "$ac_cv_header_pthread_h"; then
1906 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1907 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1908 dnl testing for pthread_self if Emacs uses gmalloc.c.
1909 if test "$GMALLOC_OBJ" = gmalloc.o; then
1910 emacs_pthread_function=pthread_atfork
1912 emacs_pthread_function=pthread_self
1914 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1916 if test "$HAVE_PTHREAD" = yes; then
1917 case "${canonical}" in
1919 *) LIB_PTHREAD="-lpthread"
1920 LIBS="$LIB_PTHREAD $LIBS" ;;
1922 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1924 AC_SUBST([LIB_PTHREAD])
1926 AC_CHECK_LIB(pthreads, cma_open)
1928 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1929 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1930 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1931 ## added to LIBS in configure would never contain the pthreads part,
1932 ## but the value used in Makefiles might. FIXME?
1934 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1935 ## be harmless on older versions of X where it happens to exist.
1936 test "$opsys" = "aix4-2" && \
1937 test $ac_cv_lib_pthreads_cma_open = yes && \
1938 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1940 dnl Check for need for bigtoc support on IBM AIX
1944 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1946 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1947 *) gdb_cv_bigtoc=-bbigtoc ;;
1950 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1951 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1956 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1957 # used for the tests that follow. We set them back to REAL_CFLAGS and
1958 # REAL_CPPFLAGS later on.
1960 REAL_CFLAGS="$CFLAGS"
1961 REAL_CPPFLAGS="$CPPFLAGS"
1963 if test "${HAVE_X11}" = "yes"; then
1964 DEFS="$C_SWITCH_X_SITE $DEFS"
1965 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
1967 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
1968 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
1970 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
1971 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
1972 # but it's more convenient here to set LD_RUN_PATH since this
1973 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
1974 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
1975 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
1979 if test "${opsys}" = "gnu-linux"; then
1980 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
1981 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1982 [[XOpenDisplay ("foo");]])],
1983 [xgnu_linux_first_failure=no],
1984 [xgnu_linux_first_failure=yes])
1985 if test "${xgnu_linux_first_failure}" = "yes"; then
1986 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
1987 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
1988 OLD_CPPFLAGS="$CPPFLAGS"
1990 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
1991 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
1992 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
1993 LIBS="$LIBS -b i486-linuxaout"
1994 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
1995 [[XOpenDisplay ("foo");]])],
1996 [xgnu_linux_second_failure=no],
1997 [xgnu_linux_second_failure=yes])
1998 if test "${xgnu_linux_second_failure}" = "yes"; then
1999 # If we get the same failure with -b, there is no use adding -b.
2000 # So take it out. This plays safe.
2001 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2002 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2003 CPPFLAGS="$OLD_CPPFLAGS"
2014 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2015 # header files included from there.
2016 AC_MSG_CHECKING(for Xkb)
2017 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2018 #include <X11/XKBlib.h>]],
2019 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2020 emacs_xkb=yes, emacs_xkb=no)
2021 AC_MSG_RESULT($emacs_xkb)
2022 if test $emacs_xkb = yes; then
2023 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2026 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2027 XScreenNumberOfScreen)
2030 if test "${window_system}" = "x11"; then
2031 AC_MSG_CHECKING(X11 version 6)
2032 AC_CACHE_VAL(emacs_cv_x11_version_6,
2033 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2034 [[#if XlibSpecificationRelease < 6
2037 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2038 if test $emacs_cv_x11_version_6 = yes; then
2039 AC_MSG_RESULT(6 or newer)
2040 AC_DEFINE(HAVE_X11R6, 1,
2041 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2042 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2043 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2047 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2048 [Define if you have usable X11R6-style XIM support.])
2052 AC_MSG_RESULT(before 6)
2057 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2059 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2060 if test "${with_rsvg}" != "no"; then
2061 RSVG_REQUIRED=2.11.0
2062 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2064 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2065 AC_SUBST(RSVG_CFLAGS)
2068 if test $HAVE_RSVG = yes; then
2069 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2070 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2071 LIBS="$RSVG_LIBS $LIBS"
2077 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2078 if test "${with_imagemagick}" != "no"; then
2079 ## 6.2.8 is the earliest version known to work, but earlier versions
2080 ## might work - let us know if you find one.
2081 ## 6.0.7 does not work. See bug#7955.
2082 ## 6.8.2 makes Emacs crash; see Bug#13867.
2083 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2084 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2085 AC_SUBST(IMAGEMAGICK_CFLAGS)
2086 AC_SUBST(IMAGEMAGICK_LIBS)
2088 if test $HAVE_IMAGEMAGICK = yes; then
2089 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2090 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2091 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2092 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2100 gtk_term_header=$term_header
2103 if test "${opsys}" != "mingw32"; then
2104 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2107 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2109 dnl Checks for libraries.
2110 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2111 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2112 AC_MSG_ERROR($GTK_PKG_ERRORS)
2114 if test "$pkg_check_gtk" = "yes"; then
2115 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2116 GTK_OBJ=emacsgtkfixed.o
2117 gtk_term_header=gtkutil.h
2118 USE_GTK_TOOLKIT="GTK3"
2119 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2120 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2121 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2125 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2129 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2132 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2134 dnl Checks for libraries.
2135 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2136 if test "$pkg_check_gtk" = "no" &&
2137 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2139 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2141 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2145 if test x"$pkg_check_gtk" = xyes; then
2147 AC_SUBST(GTK_CFLAGS)
2149 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2150 CFLAGS="$CFLAGS $GTK_CFLAGS"
2151 LIBS="$GTK_LIBS $LIBS"
2152 dnl Try to compile a simple GTK program.
2153 AC_MSG_CHECKING([whether GTK compiles])
2157 [[/* Check the Gtk and Glib APIs. */
2158 #include <gtk/gtk.h>
2159 #include <glib-object.h>
2161 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2165 GtkSettings *gs = 0;
2166 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2167 strict C prohibits this. Use gtk_main_iteration to test that the
2168 libraries are there. */
2169 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2170 0, 0, 0, G_CALLBACK (callback), 0))
2171 gtk_main_iteration ();
2174 AC_MSG_RESULT([$GTK_COMPILES])
2175 if test "${GTK_COMPILES}" != "yes"; then
2177 if test "$USE_X_TOOLKIT" != "maybe"; then
2178 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2182 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2183 GTK_OBJ="gtkutil.o $GTK_OBJ"
2184 term_header=$gtk_term_header
2186 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2189 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2190 closing open displays. This is no problem if you just use
2191 one display, but if you use more than one and close one of them
2201 if test "${HAVE_GTK}" = "yes"; then
2203 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2204 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2205 if test "$with_toolkit_scroll_bars" != no; then
2206 with_toolkit_scroll_bars=yes
2209 dnl Check if we have the old file selection dialog declared and
2210 dnl in the link library. In 2.x it may be in the library,
2211 dnl but not declared if deprecated featured has been selected out.
2212 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2213 HAVE_GTK_FILE_SELECTION=no
2214 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2215 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2216 #include <gtk/gtk.h>])
2217 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2218 AC_CHECK_FUNCS(gtk_file_selection_new)
2221 dnl Same as above for gtk_handle_box.
2222 HAVE_GTK_HANDLE_BOX=no
2223 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2224 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2225 #include <gtk/gtk.h>])
2226 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2227 AC_CHECK_FUNCS(gtk_handle_box_new)
2230 dnl Same as above for gtk_tearoff_menu_item.
2231 HAVE_GTK_TEAROFF_MENU_ITEM=no
2232 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2233 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2234 #include <gtk/gtk.h>])
2235 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2236 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2239 dnl Check for functions introduced in 2.14 and later.
2240 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2241 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2242 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2243 gtk_orientable_set_orientation \
2244 gtk_window_set_has_resize_grip)
2246 term_header=gtkutil.h
2254 if test "${with_xwidgets}" != "no"; then
2255 echo "xwidgets enabled, checking webkit, and others"
2257 AC_DEFINE(HAVE_XWIDGETS, 1, [Define to 1 if you have xwidgets support.])
2260 # - enable only if gtk/gtk3 enabled
2262 # - only webkit_osr is good so remove plain webkit laterish
2264 #webkit version for gtk3.
2265 WEBKIT_REQUIRED=1.4.0
2266 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2268 if test "${with_gtk3}" = "yes"; then
2269 PKG_CHECK_MODULES(WEBKIT, $WEBKIT_MODULES, HAVE_WEBKIT=yes, HAVE_WEBKIT=no)
2270 if test $HAVE_WEBKIT = yes; then
2271 AC_DEFINE(HAVE_WEBKIT_OSR, 1, [Define to 1 if you have webkit_osr support.])
2276 GIR_MODULES="gobject-introspection-1.0 >= $GIR_REQUIRED"
2277 PKG_CHECK_MODULES(GIR, $GIR_MODULES, HAVE_GIR=yes, HAVE_GIR=no)
2278 if test $HAVE_GIR = yes; then
2279 AC_DEFINE(HAVE_GIR, 1, [Define to 1 if you have GIR support.])
2286 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2287 dnl other platforms.
2290 if test "${with_dbus}" = "yes"; then
2291 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2292 if test "$HAVE_DBUS" = yes; then
2293 LIBS="$LIBS $DBUS_LIBS"
2294 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2295 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2296 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2298 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2299 dbus_type_is_valid \
2300 dbus_validate_bus_name \
2301 dbus_validate_path \
2302 dbus_validate_interface \
2303 dbus_validate_member)
2309 dnl GSettings has been tested under GNU/Linux only.
2311 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2312 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2313 if test "$HAVE_GSETTINGS" = "yes"; then
2314 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2315 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2316 SETTINGS_LIBS="$GSETTINGS_LIBS"
2320 dnl GConf has been tested under GNU/Linux only.
2321 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2323 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2324 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2325 if test "$HAVE_GCONF" = yes; then
2326 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2327 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2328 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2329 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2333 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2334 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2335 if test "$HAVE_GOBJECT" = "yes"; then
2336 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2337 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2339 SAVE_CFLAGS="$CFLAGS"
2341 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2342 LIBS="$SETTINGS_LIBS $LIBS"
2343 AC_CHECK_FUNCS([g_type_init])
2344 CFLAGS="$SAVE_CFLAGS"
2347 AC_SUBST(SETTINGS_CFLAGS)
2348 AC_SUBST(SETTINGS_LIBS)
2351 dnl SELinux is available for GNU/Linux only.
2354 if test "${with_selinux}" = "yes"; then
2355 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2356 if test "$HAVE_LIBSELINUX" = yes; then
2357 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2358 LIBSELINUX_LIBS=-lselinux
2361 AC_SUBST(LIBSELINUX_LIBS)
2364 if test "${with_gnutls}" = "yes" ; then
2365 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2366 if test "${HAVE_GNUTLS}" = "yes"; then
2367 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2370 # Windows loads GnuTLS dynamically
2371 if test "${opsys}" = "mingw32"; then
2374 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2375 LIBS="$LIBGNUTLS_LIBS $LIBS"
2379 AC_SUBST(LIBGNUTLS_LIBS)
2380 AC_SUBST(LIBGNUTLS_CFLAGS)
2385 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2386 dnl a particular library. This doesn't make much sense?
2387 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2388 with_file_notification=no
2391 dnl MS Windows native file monitor is available for mingw32 only.
2392 case $with_file_notification,$opsys in
2393 w32,* | yes,mingw32)
2394 AC_CHECK_HEADER(windows.h)
2395 if test "$ac_cv_header_windows_h" = yes ; then
2396 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2397 NOTIFY_OBJ=w32notify.o
2398 NOTIFY_SUMMARY="yes (w32)"
2402 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2403 dnl has been added in glib 2.24. It has been tested under
2404 dnl GNU/Linux only. We take precedence over inotify, but this makes
2405 dnl only sense when glib has been compiled with inotify support. How
2407 case $with_file_notification,$NOTIFY_OBJ in
2409 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2410 if test "$HAVE_GFILENOTIFY" = "yes"; then
2411 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2412 NOTIFY_OBJ=gfilenotify.o
2413 NOTIFY_SUMMARY="yes -lgio (gfile)"
2417 dnl inotify is only available on GNU/Linux.
2418 case $with_file_notification,$NOTIFY_OBJ in
2420 AC_CHECK_HEADER(sys/inotify.h)
2421 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2422 AC_CHECK_FUNC(inotify_init1)
2423 if test "$ac_cv_func_inotify_init1" = yes; then
2424 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2425 NOTIFY_OBJ=inotify.o
2426 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2431 case $with_file_notification,$NOTIFY_OBJ in
2432 yes,* | no,* | *,?*) ;;
2433 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2436 if test -n "$NOTIFY_OBJ"; then
2437 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2439 AC_SUBST(NOTIFY_OBJ)
2440 AC_SUBST(GFILENOTIFY_CFLAGS)
2441 AC_SUBST(GFILENOTIFY_LIBS)
2443 dnl Do not put whitespace before the #include statements below.
2444 dnl Older compilers (eg sunos4 cc) choke on it.
2447 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2448 if test "$with_xaw3d" != no; then
2449 AC_CACHE_VAL(emacs_cv_xaw3d,
2450 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2451 #include <X11/Intrinsic.h>
2452 #include <X11/Xaw3d/Simple.h>]],
2454 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2455 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2456 emacs_cv_xaw3d=no)])
2460 if test $emacs_cv_xaw3d = yes; then
2461 AC_MSG_CHECKING(for xaw3d)
2462 AC_MSG_RESULT([yes; using Lucid toolkit])
2466 AC_DEFINE(HAVE_XAW3D, 1,
2467 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2469 AC_MSG_CHECKING(for xaw3d)
2471 AC_MSG_CHECKING(for libXaw)
2472 AC_CACHE_VAL(emacs_cv_xaw,
2473 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2474 #include <X11/Intrinsic.h>
2475 #include <X11/Xaw/Simple.h>]],
2479 if test $emacs_cv_xaw = yes; then
2480 AC_MSG_RESULT([yes; using Lucid toolkit])
2483 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2484 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2486 AC_MSG_ERROR([No X toolkit could be found.
2487 If you are sure you want Emacs compiled without an X toolkit, pass
2489 to configure. Otherwise, install the development libraries for the toolkit
2490 that you want to use (e.g. Gtk+) and re-run configure.])
2495 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2498 if test "${USE_X_TOOLKIT}" != "none"; then
2499 AC_MSG_CHECKING(X11 toolkit version)
2500 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2501 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2502 [[#if XtSpecificationRelease < 6
2505 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2506 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2507 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2508 AC_MSG_RESULT(6 or newer)
2509 AC_DEFINE(HAVE_X11XTR6, 1,
2510 [Define to 1 if you have the X11R6 or newer version of Xt.])
2511 LIBXTR6="-lSM -lICE"
2513 ## Use libw.a along with X11R6 Xt.
2514 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2517 AC_MSG_RESULT(before 6)
2520 dnl If using toolkit, check whether libXmu.a exists.
2521 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2523 if test x$HAVE_X11XTR6 = xyes; then
2524 LIBS="-lXt -lSM -lICE $LIBS"
2528 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2529 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2530 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2534 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2535 dnl Why not just test for libxmu in the normal way?
2538 ## These systems don't supply Xmu.
2540 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2548 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2549 if test "${HAVE_X11}" = "yes"; then
2550 if test "${USE_X_TOOLKIT}" != "none"; then
2551 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2556 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2557 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2558 if test -d /usr/include/openmotif; then
2559 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2560 emacs_cv_openmotif=yes
2561 case "$canonical" in
2562 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2563 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2566 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2569 emacs_cv_openmotif=no
2571 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2572 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2573 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2576 Motif version prior to 2.1.
2578 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2579 if test $emacs_cv_motif_version_2_1 = yes; then
2580 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2581 if test x$emacs_cv_openmotif = xyes; then
2582 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2585 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2586 # We put this in CFLAGS temporarily to precede other -I options
2587 # that might be in CFLAGS temporarily.
2588 # We put this in CPPFLAGS where it precedes the other -I options.
2589 OLD_CPPFLAGS=$CPPFLAGS
2591 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2592 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2593 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2595 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2596 if test $emacs_cv_lesstif = yes; then
2597 # Make sure this -I option remains in CPPFLAGS after it is set
2598 # back to REAL_CPPFLAGS.
2599 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2600 # have those other -I options anyway. Ultimately, having this
2601 # directory ultimately in CPPFLAGS will be enough.
2602 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2603 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2606 CPPFLAGS=$OLD_CPPFLAGS
2609 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2610 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2613 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2614 dnl using Motif or Xaw3d is available, and unless
2615 dnl --with-toolkit-scroll-bars=no was specified.
2617 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2618 [Define to 1 if we should use toolkit scroll bars.])dnl
2619 USE_TOOLKIT_SCROLL_BARS=no
2620 if test "${with_toolkit_scroll_bars}" != "no"; then
2621 if test "${USE_X_TOOLKIT}" != "none"; then
2622 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2623 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2625 USE_TOOLKIT_SCROLL_BARS=yes
2626 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2627 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2628 USE_TOOLKIT_SCROLL_BARS=yes
2630 elif test "${HAVE_GTK}" = "yes"; then
2631 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2632 USE_TOOLKIT_SCROLL_BARS=yes
2633 elif test "${HAVE_NS}" = "yes"; then
2634 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2635 USE_TOOLKIT_SCROLL_BARS=yes
2636 elif test "${HAVE_W32}" = "yes"; then
2637 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2638 USE_TOOLKIT_SCROLL_BARS=yes
2642 dnl See if XIM is available.
2643 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2644 #include <X11/Xlib.h>
2645 #include <X11/Xresource.h>]],
2646 [[XIMProc callback;]])],
2648 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2651 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2653 if test "${with_xim}" != "no"; then
2654 AC_DEFINE(USE_XIM, 1,
2655 [Define to 1 if we should use XIM, if it is available.])
2659 if test "${HAVE_XIM}" != "no"; then
2661 if test "$GCC" = yes; then
2662 CFLAGS="$CFLAGS --pedantic-errors"
2664 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2665 #include <X11/Xlib.h>
2666 #include <X11/Xresource.h>]],
2672 XPointer *client_data;
2674 /* If we're not using GCC, it's probably not XFree86, and this is
2675 probably right, but we can't use something like --pedantic-errors. */
2676 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2677 char*, XIMProc, XPointer*);
2679 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2681 [emacs_cv_arg6_star=yes])
2682 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2683 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2684 either XPointer or XPointer*.])dnl
2685 if test "$emacs_cv_arg6_star" = yes; then
2686 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2688 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2693 ### Start of font-backend (under any platform) section.
2694 # (nothing here yet -- this is a placeholder)
2695 ### End of font-backend (under any platform) section.
2697 ### Start of font-backend (under X11) section.
2698 if test "${HAVE_X11}" = "yes"; then
2699 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2701 ## Use -lXft if available, unless `--with-xft=no'.
2703 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2706 if test "x${with_xft}" != "xno"; then
2708 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2709 ## Because xftfont.c uses XRenderQueryExtension, we also
2710 ## need to link to -lXrender.
2712 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2713 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2714 OLD_CPPFLAGS="$CPPFLAGS"
2715 OLD_CFLAGS="$CFLAGS"
2717 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2718 CFLAGS="$CFLAGS $XFT_CFLAGS"
2719 XFT_LIBS="-lXrender $XFT_LIBS"
2720 LIBS="$XFT_LIBS $LIBS"
2721 AC_CHECK_HEADER(X11/Xft/Xft.h,
2722 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2723 [[#include <X11/X.h>]])
2725 if test "${HAVE_XFT}" = "yes"; then
2726 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2728 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2730 CPPFLAGS="$OLD_CPPFLAGS"
2731 CFLAGS="$OLD_CFLAGS"
2733 fi # "${HAVE_XFT}" = "yes"
2734 fi # "$HAVE_XFT" != no
2735 fi # "x${with_xft}" != "xno"
2737 ## We used to allow building with FreeType and without Xft.
2738 ## However, the ftx font backend driver is not in good shape.
2739 if test "$HAVE_XFT" != "yes"; then
2740 dnl For the "Does Emacs use" message at the end.
2744 dnl Strict linkers fail with
2745 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2746 dnl if -lfreetype is not specified.
2747 dnl The following is needed to set FREETYPE_LIBS.
2748 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2751 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2755 if test "${HAVE_FREETYPE}" = "yes"; then
2756 AC_DEFINE(HAVE_FREETYPE, 1,
2757 [Define to 1 if using the freetype and fontconfig libraries.])
2758 if test "${with_libotf}" != "no"; then
2759 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2761 if test "$HAVE_LIBOTF" = "yes"; then
2762 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2763 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2764 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2765 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2766 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2767 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2768 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2772 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2773 dnl Does the new font backend require it, or can it work without it?
2777 if test "${HAVE_LIBOTF}" = yes; then
2778 if test "${with_m17n_flt}" != "no"; then
2779 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2780 if test "$HAVE_M17N_FLT" = "yes"; then
2781 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2792 ### End of font-backend (under X11) section.
2794 AC_SUBST(FREETYPE_CFLAGS)
2795 AC_SUBST(FREETYPE_LIBS)
2796 AC_SUBST(FONTCONFIG_CFLAGS)
2797 AC_SUBST(FONTCONFIG_LIBS)
2798 AC_SUBST(LIBOTF_CFLAGS)
2799 AC_SUBST(LIBOTF_LIBS)
2800 AC_SUBST(M17N_FLT_CFLAGS)
2801 AC_SUBST(M17N_FLT_LIBS)
2803 ### Use -lXpm if available, unless `--with-xpm=no'.
2804 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2807 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2808 if test "${with_xpm}" != "no"; then
2809 SAVE_CPPFLAGS="$CPPFLAGS"
2810 SAVE_LDFLAGS="$LDFLAGS"
2811 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2812 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2813 AC_CHECK_HEADER(X11/xpm.h,
2814 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2815 if test "${HAVE_XPM}" = "yes"; then
2816 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2817 AC_EGREP_CPP(no_return_alloc_pixels,
2818 [#include "X11/xpm.h"
2819 #ifndef XpmReturnAllocPixels
2820 no_return_alloc_pixels
2822 ], HAVE_XPM=no, HAVE_XPM=yes)
2824 if test "${HAVE_XPM}" = "yes"; then
2825 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2829 CPPFLAGS="$SAVE_CPPFLAGS"
2830 LDFLAGS="$SAVE_LDFLAGS"
2835 if test "${HAVE_XPM}" = "yes"; then
2836 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2841 if test "${HAVE_X11}" = "yes"; then
2842 if test "${with_xpm}" != "no"; then
2843 AC_CHECK_HEADER(X11/xpm.h,
2844 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2845 if test "${HAVE_XPM}" = "yes"; then
2846 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2847 AC_EGREP_CPP(no_return_alloc_pixels,
2848 [#include "X11/xpm.h"
2849 #ifndef XpmReturnAllocPixels
2850 no_return_alloc_pixels
2852 ], HAVE_XPM=no, HAVE_XPM=yes)
2854 if test "${HAVE_XPM}" = "yes"; then
2862 if test "${HAVE_XPM}" = "yes"; then
2863 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2868 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2869 ### slightly different requirements wrt image libraries (it doesn't
2870 ### use -lXpm because it loads the xpm shared library dynamically at
2872 if test "${opsys}" = "mingw32"; then
2873 if test "${with_xpm}" != "no"; then
2874 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2878 if test "${HAVE_XPM}" = "yes"; then
2879 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2885 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2886 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2889 if test "${opsys}" = "mingw32"; then
2890 if test "${with_jpeg}" != "no"; then
2891 dnl Checking for jpeglib.h can lose because of a redefinition of
2893 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2895 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2896 if test "${HAVE_JPEG}" = "yes"; then
2897 AC_DEFINE(HAVE_JPEG)
2898 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2899 [#include <jpeglib.h>
2900 version=JPEG_LIB_VERSION
2902 [AC_DEFINE(HAVE_JPEG)],
2903 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2906 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2907 if test "${with_jpeg}" != "no"; then
2908 dnl Checking for jpeglib.h can lose because of a redefinition of
2910 AC_CHECK_HEADER(jerror.h,
2911 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2914 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2915 if test "${HAVE_JPEG}" = "yes"; then
2916 AC_DEFINE(HAVE_JPEG)
2917 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2918 [#include <jpeglib.h>
2919 version=JPEG_LIB_VERSION
2921 [AC_DEFINE(HAVE_JPEG)],
2922 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2925 if test "${HAVE_JPEG}" = "yes"; then
2931 ### Use -lpng if available, unless `--with-png=no'.
2932 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2935 if test "${opsys}" = "mingw32"; then
2936 if test "${with_png}" != "no"; then
2937 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2939 if test "${HAVE_PNG}" = "yes"; then
2940 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2942 AC_CHECK_DECL(png_longjmp,
2944 [AC_DEFINE(PNG_DEPSTRUCT, [],
2945 [Define to empty to suppress deprecation warnings when building
2946 with --enable-gcc-warnings and with libpng versions before 1.5,
2947 which lack png_longjmp.])],
2948 [[#ifdef HAVE_LIBPNG_PNG_H
2949 # include <libpng/png.h>
2955 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2956 if test "${with_png}" != "no"; then
2957 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2958 # in /usr/include/libpng.
2959 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2960 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2961 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2965 if test "${HAVE_PNG}" = "yes"; then
2966 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2967 LIBPNG="-lpng -lz -lm"
2969 AC_CHECK_DECL(png_longjmp,
2971 [AC_DEFINE(PNG_DEPSTRUCT, [],
2972 [Define to empty to suppress deprecation warnings when building
2973 with --enable-gcc-warnings and with libpng versions before 1.5,
2974 which lack png_longjmp.])],
2975 [[#ifdef HAVE_LIBPNG_PNG_H
2976 # include <libpng/png.h>
2987 if test "${with_zlib}" != "no"; then
2989 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
2991 case $ac_cv_search_inflateEnd in
2992 -*) LIBZ=$ac_cv_search_inflateEnd ;;
2995 if test "${HAVE_ZLIB}" = "yes"; then
2996 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
2997 ### mingw32 doesn't use -lz, since it loads the library dynamically.
2998 if test "${opsys}" = "mingw32"; then
3005 ### Use -ltiff if available, unless `--with-tiff=no'.
3006 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3009 if test "${opsys}" = "mingw32"; then
3010 if test "${with_tiff}" != "no"; then
3011 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3013 if test "${HAVE_TIFF}" = "yes"; then
3014 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3016 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3017 if test "${with_tiff}" != "no"; then
3018 AC_CHECK_HEADER(tiffio.h,
3020 # At least one tiff package requires the jpeg library.
3021 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3022 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3025 if test "${HAVE_TIFF}" = "yes"; then
3026 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3027 dnl FIXME -lz -lm, as per libpng?
3033 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3034 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3037 if test "${opsys}" = "mingw32"; then
3038 if test "${with_gif}" != "no"; then
3039 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3041 if test "${HAVE_GIF}" = "yes"; then
3042 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3044 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3045 || test "${HAVE_W32}" = "yes"; then
3046 AC_CHECK_HEADER(gif_lib.h,
3047 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3048 # Earlier versions can crash Emacs.
3049 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3051 if test "$HAVE_GIF" = yes; then
3053 elif test "$HAVE_GIF" = maybe; then
3054 # If gif_lib.h but no libgif, try libungif.
3055 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3056 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3059 if test "${HAVE_GIF}" = "yes"; then
3060 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3065 dnl Check for required libraries.
3066 if test "${HAVE_X11}" = "yes"; then
3069 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3070 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3071 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3072 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3073 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3074 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3075 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3076 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3077 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3078 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3080 if test "X${MISSING}" != X; then
3081 AC_MSG_ERROR([The following required libraries were not found:
3083 Maybe some development libraries/packages are missing?
3084 If you don't want to link with them give
3086 as options to configure])
3090 ### Use -lgpm if available, unless `--with-gpm=no'.
3093 if test "${with_gpm}" != "no"; then
3094 AC_CHECK_HEADER(gpm.h,
3095 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3097 if test "${HAVE_GPM}" = "yes"; then
3098 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3104 dnl Check for malloc/malloc.h on darwin
3105 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3108 ### Use NeXTstep API to implement GUI.
3109 if test "${HAVE_NS}" = "yes"; then
3110 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3111 if test "${NS_IMPL_COCOA}" = "yes"; then
3112 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3114 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3115 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3116 # See also .m.o rule in Makefile.in */
3117 # FIXME: are all these flags really needed? Document here why. */
3118 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3119 ## Extra CFLAGS applied to src/*.m files.
3120 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3122 # We also have mouse menus.
3127 if test "${HAVE_W32}" = "yes"; then
3131 ### Use session management (-lSM -lICE) if available
3134 if test "${HAVE_X11}" = "yes"; then
3135 AC_CHECK_HEADER(X11/SM/SMlib.h,
3136 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3138 if test "${HAVE_X_SM}" = "yes"; then
3139 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3143 *) LIBS="$LIBXSM $LIBS" ;;
3149 ### Use XRandr (-lXrandr) if available
3151 if test "${HAVE_X11}" = "yes"; then
3152 XRANDR_REQUIRED=1.2.2
3153 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3154 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3155 if test $HAVE_XRANDR = no; then
3156 # Test old way in case pkg-config doesn't have it (older machines).
3157 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3158 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3159 if test $HAVE_XRANDR = yes; then
3160 XRANDR_LIBS=-lXrandr
3161 AC_SUBST(XRANDR_LIBS)
3164 if test $HAVE_XRANDR = yes; then
3165 SAVE_CFLAGS="$CFLAGS"
3167 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3168 LIBS="$XRANDR_LIBS $LIBS"
3169 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3170 CFLAGS="$SAVE_CFLAGS"
3173 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3177 ### Use Xinerama (-lXinerama) if available
3179 if test "${HAVE_X11}" = "yes"; then
3180 XINERAMA_REQUIRED=1.0.2
3181 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3182 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3184 if test $HAVE_XINERAMA = no; then
3185 # Test old way in case pkg-config doesn't have it (older machines).
3186 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3187 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3188 if test $HAVE_XINERAMA = yes; then
3189 XINERAMA_LIBS=-lXinerama
3190 AC_SUBST(XINERAMA_LIBS)
3193 if test $HAVE_XINERAMA = yes; then
3194 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3199 ### Use libxml (-lxml2) if available
3200 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3202 if test "${with_xml2}" != "no"; then
3203 ### I'm not sure what the version number should be, so I just guessed.
3204 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3205 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3206 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3207 SAVE_CPPFLAGS="$CPPFLAGS"
3208 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3209 AC_CHECK_HEADER(libxml/HTMLparser.h,
3210 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3211 [#include <libxml/HTMLparser.h>])])
3212 CPPFLAGS="$SAVE_CPPFLAGS"
3213 if test "${HAVE_LIBXML2}" = "yes"; then
3214 LIBXML2_LIBS="-lxml2"
3215 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3218 if test "${HAVE_LIBXML2}" = "yes"; then
3219 if test "${opsys}" != "mingw32"; then
3220 LIBS="$LIBXML2_LIBS $LIBS"
3221 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3225 if test "${HAVE_LIBXML2}" = "yes"; then
3226 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3233 AC_SUBST(LIBXML2_LIBS)
3234 AC_SUBST(LIBXML2_CFLAGS)
3236 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3237 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3238 if test "${opsys}" = "mingw32"; then
3239 emacs_cv_netdb_declares_h_errno=yes
3241 AC_CACHE_CHECK(whether netdb declares h_errno,
3242 emacs_cv_netdb_declares_h_errno,
3243 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3244 [[return h_errno;]])],
3245 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3246 if test $emacs_cv_netdb_declares_h_errno = yes; then
3247 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3250 # sqrt and other floating-point functions such as fmod and frexp
3251 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3252 if test "${opsys}" != "mingw32"; then
3253 AC_CHECK_LIB(m, sqrt)
3256 # Check for mail-locking functions in a "mail" library. Probably this should
3257 # have the same check as for liblockfile below.
3258 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3259 if test $have_mail = yes; then
3261 LIBS="$LIBS_MAIL $LIBS"
3262 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3266 dnl Debian, at least:
3267 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3268 if test $have_lockfile = yes; then
3269 LIBS_MAIL=-llockfile
3270 LIBS="$LIBS_MAIL $LIBS"
3271 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3273 # If we have the shared liblockfile, assume we must use it for mail
3274 # locking (e.g. Debian). If we couldn't link against liblockfile
3275 # (no liblockfile.a installed), ensure that we don't need to.
3276 dnl This works for files generally, not just executables.
3277 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3278 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3279 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3280 if test $ac_cv_prog_liblockfile = yes; then
3281 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3282 This probably means that movemail could lose mail.
3283 There may be a `development' package to install containing liblockfile.])
3286 AC_CHECK_HEADERS_ONCE(maillock.h)
3289 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3290 ## interlock access to the mail spool. The alternative is a lock file named
3291 ## /usr/spool/mail/$USER.lock.
3294 aix4-2) mail_lock="lockf" ;;
3296 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3298 ## On GNU/Linux systems, both methods are used by various mail programs.
3299 ## I assume most people are using newer mailers that have heard of flock.
3300 ## Change this if you need to.
3301 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3302 ## configure gets the right answers, and that means *NOT* using flock.
3303 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3304 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3305 ## Debian maintainer hasn't provided a clean fix for Emacs.
3306 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3307 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3308 ## correct logic. -- fx
3309 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3310 ## liblockfile is a Free Software replacement for libmail, used on
3311 ## Debian systems and elsewhere. -rfr.
3314 if test $have_mail = yes || test $have_lockfile = yes; then
3315 test $ac_cv_header_maillock_h = yes && mail_lock=no
3320 mail_lock="none-needed" ;;
3324 case "$mail_lock" in
3325 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3327 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3331 *) BLESSMAIL_TARGET="need-blessmail" ;;
3333 AC_SUBST(BLESSMAIL_TARGET)
3336 AC_CHECK_FUNCS(accept4 gethostname \
3337 getrusage get_current_dir_name \
3339 select getpagesize setlocale \
3340 getrlimit setrlimit shutdown getaddrinfo \
3341 strsignal setitimer \
3342 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3343 gai_strerror getline getdelim sync \
3344 difftime posix_memalign \
3345 getpwent endpwent getgrent endgrent \
3347 cfmakeraw cfsetspeed copysign __executable_start log2)
3349 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3350 ## has a broken `rint' in some library versions including math library
3351 ## version number A.09.05.
3352 ## You can fix the math library by installing patch number PHSS_4630.
3353 ## But we can fix it more reliably for Emacs by just not using rint.
3354 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3357 *) AC_CHECK_FUNCS(random rint) ;;
3360 dnl Cannot use AC_CHECK_FUNCS
3361 AC_CACHE_CHECK([for __builtin_unwind_init],
3362 emacs_cv_func___builtin_unwind_init,
3363 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3364 emacs_cv_func___builtin_unwind_init=yes,
3365 emacs_cv_func___builtin_unwind_init=no)])
3366 if test $emacs_cv_func___builtin_unwind_init = yes; then
3367 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3368 [Define to 1 if you have the `__builtin_unwind_init' function.])
3371 AC_CHECK_HEADERS_ONCE(sys/un.h)
3376 AC_CHECK_FUNCS(grantpt)
3378 # PTY-related GNU extensions.
3379 AC_CHECK_FUNCS(getpt posix_openpt)
3381 # Check this now, so that we will NOT find the above functions in ncurses.
3382 # That is because we have not set up to link ncurses in lib-src.
3383 # It's better to believe a function is not available
3384 # than to expect to find it in ncurses.
3385 # Also we need tputs and friends to be able to build at all.
3386 AC_MSG_CHECKING([for library containing tputs])
3387 # Run a test program that contains a call to tputs, a call that is
3388 # never executed. This tests whether a pre-'main' dynamic linker
3389 # works with the library. It's too much trouble to actually call
3390 # tputs in the test program, due to portability hassles. When
3391 # cross-compiling, assume the test program will run if it links.
3392 AC_DEFUN([tputs_link_source], [
3394 [[extern void tputs (const char *, int, int (*)(int));
3395 int main (int argc, char **argv)
3398 tputs (argv[0], 0, 0);
3402 if test "${opsys}" = "mingw32"; then
3405 # Maybe curses should be tried earlier?
3406 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3407 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3409 if test -z "$tputs_library"; then
3413 LIBS_TERMCAP=-l$tputs_library
3415 LIBS="$LIBS_TERMCAP $LIBS"
3417 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3418 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3420 if test "X$msg" != Xno; then
3425 AC_MSG_RESULT([$msg])
3426 if test "X$msg" = Xno; then
3427 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3428 The following libraries were tried (in order):
3429 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3430 Please try installing whichever of these libraries is most appropriate
3431 for your system, together with its header files.
3432 For example, a libncurses-dev(el) or similar package.])
3435 ## Use termcap instead of terminfo?
3436 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3438 ## FIXME? In the cases below where we unconditionally set
3439 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3440 ## if that was found above to have tputs.
3441 ## Should we use the gnu* logic everywhere?
3443 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3444 ## The ncurses library has been moved out of the System framework in
3445 ## Mac OS X 10.2. So if configure detects it, set the command-line
3446 ## option to use it.
3447 darwin) LIBS_TERMCAP="-lncurses" ;;
3449 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3452 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3453 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3454 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3455 [[#if __FreeBSD_version < 400000
3458 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3460 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3462 if test $emacs_cv_freebsd_terminfo = yes; then
3463 LIBS_TERMCAP="-lncurses"
3466 LIBS_TERMCAP="-ltermcap"
3476 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3478 LIBS_TERMCAP="-ltermcap"
3482 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3484 ## hpux: Make sure we get select from libc rather than from libcurses
3485 ## because libcurses on HPUX 10.10 has a broken version of select.
3486 ## We used to use -lc -lcurses, but this may be cleaner.
3487 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3488 # set that way, now it uses the default). Isn't this a contradiction?
3489 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3493 TERMCAP_OBJ=tparam.o
3494 if test $TERMINFO = yes; then
3495 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3496 TERMCAP_OBJ=terminfo.o
3498 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3499 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3501 AC_SUBST(LIBS_TERMCAP)
3502 AC_SUBST(TERMCAP_OBJ)
3505 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3506 # On Darwin, res_init appears not to be useful: see bug#562 and
3507 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3510 if test $opsys != darwin; then
3512 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3513 #include <arpa/nameser.h>
3514 #include <resolv.h>]],
3515 [[return res_init();]])],
3516 have_res_init=yes, have_res_init=no)
3517 if test "$have_res_init" = no; then
3519 LIBS="$LIBS -lresolv"
3520 AC_MSG_CHECKING(for res_init with -lresolv)
3521 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3522 #include <arpa/nameser.h>
3523 #include <resolv.h>]],
3524 [[return res_init();]])],
3525 have_res_init=yes, have_res_init=no)
3526 AC_MSG_RESULT($have_res_init)
3527 if test "$have_res_init" = yes ; then
3533 if test "$have_res_init" = yes; then
3534 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3538 # Do we need the Hesiod library to provide the support routines?
3539 dnl FIXME? Should we be skipping this on Darwin too?
3541 if test "$with_hesiod" != no ; then
3542 # Don't set $LIBS here -- see comments above. FIXME which comments?
3543 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3544 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3545 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3546 if test "$resolv" = yes ; then
3551 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3552 hesiod=yes, :, $RESOLVLIB)])
3554 if test x"$hesiod" = xyes; then
3560 # Do we need libresolv (due to res_init or Hesiod)?
3561 if test "$resolv" = yes && test $opsys != darwin; then
3568 # These tell us which Kerberos-related libraries to use.
3575 if test "${with_kerberos}" != no; then
3576 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3577 if test $have_com_err = yes; then
3578 COM_ERRLIB=-lcom_err
3579 LIBS="$COM_ERRLIB $LIBS"
3581 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3582 if test $have_crypto = yes; then
3584 LIBS="$CRYPTOLIB $LIBS"
3586 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3587 if test $have_k5crypto = yes; then
3588 CRYPTOLIB=-lk5crypto
3589 LIBS="$CRYPTOLIB $LIBS"
3591 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3592 if test $have_krb5=yes; then
3594 LIBS="$KRB5LIB $LIBS"
3596 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3597 if test "${with_kerberos5}" = no; then
3598 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3599 if test $have_des425 = yes; then
3601 LIBS="$DESLIB $LIBS"
3603 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3604 if test $have_des = yes; then
3606 LIBS="$DESLIB $LIBS"
3609 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3610 if test $have_krb4 = yes; then
3612 LIBS="$KRB4LIB $LIBS"
3614 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3615 if test $have_krb = yes; then
3617 LIBS="$KRB4LIB $LIBS"
3622 if test "${with_kerberos5}" != no; then
3623 AC_CHECK_HEADERS(krb5.h,
3624 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3625 [#include <krb5.h>])])
3627 AC_CHECK_HEADERS(krb.h,,
3628 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3629 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3631 AC_CHECK_HEADERS(com_err.h)
3634 AC_SUBST(COM_ERRLIB)
3640 AC_CHECK_FUNCS_ONCE(tzset)
3641 AC_MSG_CHECKING(whether localtime caches TZ)
3642 AC_CACHE_VAL(emacs_cv_localtime_cache,
3643 [if test x$ac_cv_func_tzset = xyes; then
3644 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3645 char TZ_GMT0[] = "TZ=GMT0";
3646 char TZ_PST8[] = "TZ=PST8";
3649 time_t now = time ((time_t *) 0);
3650 int hour_GMT0, hour_unset;
3651 if (putenv (TZ_GMT0) != 0)
3653 hour_GMT0 = localtime (&now)->tm_hour;
3655 hour_unset = localtime (&now)->tm_hour;
3656 if (putenv (TZ_PST8) != 0)
3658 if (localtime (&now)->tm_hour == hour_GMT0)
3661 if (localtime (&now)->tm_hour != hour_unset)
3664 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3665 [# If we have tzset, assume the worst when cross-compiling.
3666 emacs_cv_localtime_cache=yes])
3668 # If we lack tzset, report that localtime does not cache TZ,
3669 # since we can't invalidate the cache if we don't have tzset.
3670 emacs_cv_localtime_cache=no
3672 AC_MSG_RESULT($emacs_cv_localtime_cache)
3673 if test $emacs_cv_localtime_cache = yes; then
3674 AC_DEFINE(LOCALTIME_CACHE, 1,
3675 [Define to 1 if localtime caches TZ.])
3679 AC_CHECK_FUNC(socket, , ok_so_far=no)
3680 if test $ok_so_far = yes; then
3681 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3683 if test $ok_so_far = yes; then
3684 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3686 if test $ok_so_far = yes; then
3687 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3688 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3689 [Define to 1 if you have inet sockets.])
3692 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3693 dnl This can be removed once we assume Autoconf 2.70.
3695 *-solaris2.4 | *-solaris2.4.*)
3696 dnl Disable the Autoconf-generated vfork test.
3697 : ${ac_cv_func_vfork_works=no};;
3702 AC_CHECK_FUNCS(snprintf)
3704 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3707 AC_MSG_CHECKING([whether GLib is linked in])
3708 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3711 [[g_print ("Hello world");]])],
3714 AC_MSG_RESULT([$links_glib])
3715 if test "${links_glib}" = "yes"; then
3716 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3717 if test "$HAVE_NS" = no;then
3723 dnl Adapted from Haible's version.
3724 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3725 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3726 [[char* cs = nl_langinfo(CODESET);]])],
3727 emacs_cv_langinfo_codeset=yes,
3728 emacs_cv_langinfo_codeset=no)
3730 if test $emacs_cv_langinfo_codeset = yes; then
3731 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3732 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3737 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3738 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3739 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3740 if test "$emacs_cv_c_restrict_arr" = yes; then
3741 AC_DEFINE(__restrict_arr, __restrict,
3742 [Define to compiler's equivalent of C99 restrict keyword in array
3743 declarations. Define as empty for no equivalent.])
3746 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3747 dnl how the tty code is related to POSIX and/or other versions of termios.
3748 dnl The following looks like a useful start.
3750 dnl AC_SYS_POSIX_TERMIOS
3751 dnl if test $ac_cv_sys_posix_termios = yes; then
3752 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3753 dnl and macros for terminal control.])
3754 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3757 dnl Turned on June 1996 supposing nobody will mind it.
3758 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3759 if test "${opsys}" != "mingw32"; then
3760 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3761 in the full name stands for the login id.])
3764 dnl Every platform that uses configure supports this.
3765 dnl There is a create-lockfiles option you can
3766 dnl customize if you do not want the lock files to be written.
3767 dnl So it is not clear that this #define still needs to exist.
3768 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3769 so that Emacs can tell instantly when you try to modify a file that
3770 someone else has modified in his/her Emacs.])
3772 dnl Everybody supports this, except MS.
3773 dnl Seems like the kind of thing we should be testing for, though.
3774 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3775 if test "${opsys}" != "mingw32"; then
3776 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3779 dnl Everybody supports this, except MS-DOS.
3780 dnl Seems like the kind of thing we should be testing for, though.
3781 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3782 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3783 4.2-compatible sockets.])
3785 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3787 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3788 a null file, or a data sink.])
3789 if test "${opsys}" = "mingw32"; then
3790 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3792 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3795 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3796 if test "${opsys}" = "mingw32"; then
3797 AC_DEFINE(SEPCHAR, [';'])
3799 AC_DEFINE(SEPCHAR, [':'])
3802 dnl Everybody supports this, except MS-DOS.
3803 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3805 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3808 AC_DEFINE(DIRECTORY_SEP, ['/'],
3809 [Character that separates directories in a file name.])
3811 if test "${opsys}" = "mingw32"; then
3812 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3813 [Returns true if character is a device separator.])
3815 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3816 [Returns true if character is a directory separator.])
3818 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3819 [Returns true if character is any form of separator.])
3821 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3822 [Returns true if character is a device separator.])
3824 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3825 [Returns true if character is a directory separator.])
3827 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3828 [Returns true if character is any form of separator.])
3831 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3835 dnl Unfortunately without libXmu we cannot support EditRes.
3836 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3837 AC_DEFINE(NO_EDITRES, 1)
3842 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3843 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3844 AC_DEFINE(NO_EDITRES, 1)
3850 irix6-5 | sol2* | unixware )
3851 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3852 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3853 dnl need the constant to dimension an array. So wire in the appropriate
3855 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3859 emacs_broken_SIGIO=no
3862 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3863 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3864 hpux* | irix6-5 | openbsd | sol2* | unixware | gnu-kfreebsd )
3865 emacs_broken_SIGIO=yes
3869 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3870 dnl the way this system works, libc functions that return malloced
3871 dnl memory use the libc malloc implementation. Calling xfree or
3872 dnl xrealloc on the results of such functions results in a crash.
3874 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3875 dnl but that does not currently work on this system.
3877 dnl It is possible to completely override the malloc implementation on
3878 dnl AIX, but that involves putting the malloc functions in a shared
3879 dnl library and setting the MALLOCTYPE environment variable to point to
3880 dnl that shared library.
3882 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3883 dnl to avoid a crash just use the Emacs implementation for that function.
3885 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3886 dnl of this file, so that we do not check for get_current_dir_name
3887 dnl on AIX. But that might be fragile if something else ends
3888 dnl up testing for get_current_dir_name as a dependency.
3889 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3890 get_current_dir_name should not be used.])
3894 dnl Circumvent a bug in FreeBSD. In the following sequence of
3895 dnl writes/reads on a PTY, read(2) returns bogus data:
3897 dnl write(2) 1022 bytes
3898 dnl write(2) 954 bytes, get EAGAIN
3899 dnl read(2) 1024 bytes in process_read_output
3900 dnl read(2) 11 bytes in process_read_output
3902 dnl That is, read(2) returns more bytes than have ever been written
3903 dnl successfully. The 1033 bytes read are the 1022 bytes written
3904 dnl successfully after processing (for example with CRs added if the
3905 dnl terminal is set up that way which it is here). The same bytes will
3906 dnl be seen again in a later read(2), without the CRs.
3907 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3908 work around an issue when reading from a PTY.])
3914 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3915 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3920 darwin | dragonfly | freebsd | netbsd | openbsd )
3921 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3922 close a pty to make it a controlling terminal (it is already a
3923 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3927 dnl FIXME Surely we can test for this rather than hard-code it.
3929 netbsd | openbsd) sound_device="/dev/audio" ;;
3930 *) sound_device="/dev/dsp" ;;
3934 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3935 [Name of the default sound device.])
3938 dnl Emacs can read input using SIGIO and buffering characters itself,
3939 dnl or using CBREAK mode and making C-g cause SIGINT.
3940 dnl The choice is controlled by the variable interrupt_input.
3942 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3944 dnl Emacs uses the presence of the USABLE_SIGIO macro
3945 dnl to indicate whether or not signal-driven I/O is possible. It uses
3946 dnl INTERRUPT_INPUT to decide whether to use it by default.
3948 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3949 dnl CBREAK mode has two disadvantages
3950 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3951 dnl I hear that in system V this problem does not exist.
3952 dnl 2) Control-G causes output to be discarded.
3953 dnl I do not know whether this can be fixed in system V.
3955 dnl Another method of doing input is planned but not implemented.
3956 dnl It would have Emacs fork off a separate process
3957 dnl to read the input and send it to the true Emacs process
3960 darwin | gnu-linux | gnu-kfreebsd )
3961 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3966 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3967 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3968 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3969 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3970 dnl taking float or double parameters.
3972 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3973 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3974 file defines `NeedWidePrototypes' as `NO'.])
3979 dnl Used in process.c, this must be a loop, even if it only runs once.
3980 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3981 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3982 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3983 dnl trying suffixes 0-16.
3984 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3985 first PTY, if PTYs are supported.])
3986 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3987 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3988 end of a PTY, if non-standard.])
3989 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3990 end of a PTY, if non-standard.])
3994 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3995 dnl You allocate a pty by opening /dev/ptc to get the master side.
3996 dnl To get the name of the slave side, you just ttyname() the master side.
3997 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3998 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4002 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4003 dnl multi-line AC_DEFINEs are hard. :(
4004 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)])
4005 AC_DEFINE(PTY_NAME_SPRINTF, [])
4006 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4009 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4011 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4012 dnl Not used, because PTY_ITERATION is defined.
4013 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4014 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4015 dnl But we don't have to block SIGCHLD because it is blocked in the
4016 dnl implementation of grantpt.
4017 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4018 AC_DEFINE(PTY_NAME_SPRINTF, [])
4019 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4023 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4026 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4028 if test "x$ac_cv_func_grantpt" = xyes; then
4029 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4030 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4031 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4032 dnl to prevent sigchld_handler from intercepting the child's death.
4033 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4034 dnl if HAVE_POSIX_OPENPT
4035 if test "x$ac_cv_func_posix_openpt" = xyes; then
4036 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4037 AC_DEFINE(PTY_NAME_SPRINTF, [])
4039 elif test "x$ac_cv_func_getpt" = xyes; then
4040 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4041 AC_DEFINE(PTY_NAME_SPRINTF, [])
4043 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4046 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4051 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4052 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4053 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4057 dnl It looks like this cannot be right, because it is not a loop.
4058 dnl However, process.c actually does this:
4064 dnl which presumably makes it OK, since irix == sgi (?).
4065 dnl FIXME it seems like this special treatment is unnecessary?
4066 dnl Why can't irix use a single-trip loop like eg cygwin?
4067 AC_DEFINE(PTY_ITERATION, [])
4068 dnl Not used, because PTY_ITERATION is defined.
4069 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4070 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); }])
4071 dnl No need to get the pty name at all.
4072 AC_DEFINE(PTY_NAME_SPRINTF, [])
4073 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4074 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4078 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4079 dnl from intercepting that death. If any child but grantpt's should die
4080 dnl within, it should be caught after sigrelse(2).
4081 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, PTY_NAME_SIZE, "%s", ptyname); }])
4085 dnl Comments are as per sol2*.
4086 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, PTY_NAME_SIZE, "%s", ptyname); }])
4093 dnl This change means that we don't loop through allocate_pty too
4094 dnl many times in the (rare) event of a failure.
4095 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4096 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4097 dnl Push various streams modules onto a PTY channel. Used in process.c.
4098 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.])
4103 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4104 "typing" a signal character on the pty.])
4107 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4108 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4109 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4110 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4113 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4114 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4115 gnu-linux | gnu-kfreebsd )
4117 AC_MSG_CHECKING([for signals via characters])
4118 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4119 #include <linux/version.h>
4120 #if LINUX_VERSION_CODE < 0x20400
4121 # error "Linux version too old"
4123 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4125 AC_MSG_RESULT([$emacs_signals_via_chars])
4126 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4131 dnl Used in lisp.h, emacs.c, vm-limit.c
4132 dnl NEWS.18 describes this as "a number which contains
4133 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4134 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4135 stored in a Lisp_Object.])
4136 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4140 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4141 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4144 dnl The data segment on this machine always starts at address 0x40000000.
4145 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4148 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4153 AH_TEMPLATE(TAB3, [Undocumented.])
4156 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4158 gnu | dragonfly | freebsd | netbsd | openbsd )
4159 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4160 AC_DEFINE(TAB3, OXTABS)
4163 gnu-linux | gnu-kfreebsd )
4164 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4168 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4169 [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)],
4170 [Mark a secondary stack, like the register stack on the ia64.]), [])
4174 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4175 run_time_remap; for HPUX.])
4180 dnl This won't be used automatically yet. We also need to know, at least,
4181 dnl that the stack is continuous.
4182 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4183 registers relevant for conservative garbage collection in the jmp_buf.])
4187 dnl Not all the architectures are tested, but there are Debian packages
4188 dnl for SCM and/or Guile on them, so the technique must work. See also
4189 dnl comments in alloc.c concerning setjmp and gcc.
4190 dnl Fixme: it's probably safe to just use the GCC conditional below.
4191 gnu-linux | gnu-kfreebsd )
4192 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4193 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4194 || defined __alpha__ || defined __mips__ || defined __s390__ \
4195 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4196 || defined __ia64__ || defined __sh__
4199 # error "setjmp not known to work on this arch"
4201 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4206 if test x$GCC = xyes; then
4207 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4208 AC_DEFINE(GC_SETJMP_WORKS, 1)
4211 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4212 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4213 AC_DEFINE(GC_SETJMP_WORKS, 1)
4218 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4219 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4222 [[#include <setjmp.h>
4224 # define _longjmp longjmp
4229 _longjmp (j, 1);]])],
4230 [emacs_cv_func__setjmp=yes],
4231 [emacs_cv_func__setjmp=no])])
4232 if test $emacs_cv_func__setjmp = yes; then
4233 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4235 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4238 [[#include <setjmp.h>
4241 if (! sigsetjmp (j, 1))
4242 siglongjmp (j, 1);]])],
4243 [emacs_cv_func_sigsetjmp=yes],
4244 [emacs_cv_func_sigsetjmp=no])])
4245 if test $emacs_cv_func_sigsetjmp = yes; then
4246 AC_DEFINE([HAVE_SIGSETJMP], 1,
4247 [Define to 1 if sigsetjmp and siglongjmp work.
4248 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4254 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4255 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4256 dnl and this is all we need.
4257 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4264 dnl Used in xfaces.c.
4265 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4266 some systems, where it requires time.h.])
4271 dnl Define symbols to identify the version of Unix this is.
4272 dnl Define all the symbols that apply correctly.
4273 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4274 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4275 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4276 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4281 dnl This symbol should be defined on AIX Version 3 ???????
4282 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4284 # error "_AIX not defined"
4286 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4290 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4294 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4295 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4296 dnl distinguish OS X from pure Darwin.
4297 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4300 gnu-linux | gnu-kfreebsd )
4302 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4307 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4312 AC_DEFINE(USG5_4, [])
4313 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4317 AC_DEFINE(DOS_NT, [])
4318 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4319 if test "x$ac_enable_checking" != "x" ; then
4320 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4326 AC_DEFINE(USG5_4, [])
4327 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4332 AC_DEFINE(USG5_4, [])
4336 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4339 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4340 emacs_cv_usable_FIONREAD=no
4344 emacs_cv_usable_FIONREAD=yes
4349 [AC_LANG_PROGRAM([[#include <sys/types.h>
4350 #include <sys/ioctl.h>
4352 # include <sys/filio.h>
4355 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4356 [emacs_cv_usable_FIONREAD=yes],
4357 [emacs_cv_usable_FIONREAD=no])
4360 if test $emacs_cv_usable_FIONREAD = yes; then
4361 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4363 if test $emacs_broken_SIGIO = no; then
4364 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4366 [AC_LANG_PROGRAM([[#include <fcntl.h>
4369 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4370 [emacs_cv_usable_SIGIO=yes],
4371 [emacs_cv_usable_SIGIO=no])],
4372 [emacs_cv_usable_SIGIO=yes],
4373 [emacs_cv_usable_SIGIO=no])
4374 if test $emacs_cv_usable_SIGIO = yes; then
4375 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4382 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4383 dnl and on Cygwin prior to version 1.7.24 that becomes the
4384 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4385 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4386 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4387 dnl needed starting with cygwin-1.7.24, and it is no longer
4388 dnl effective starting with glib-2.36. */
4390 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4391 G_SLICE environment variable to "always-malloc" at startup.])
4395 dnl It works to open the pty's tty in the parent (Emacs), then
4396 dnl close and reopen it in the child.
4397 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4398 works to open a pty's tty in the parent process, then close and
4399 reopen it in the child.])
4403 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4404 use VSUSP instead of VSWTCH.])
4408 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4413 # Set up the CFLAGS for real compilation, so we can substitute it.
4414 CFLAGS="$REAL_CFLAGS"
4415 CPPFLAGS="$REAL_CPPFLAGS"
4417 ## Hack to detect a buggy GCC version.
4418 if test "x$GCC" = xyes \
4419 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4420 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4421 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4422 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4425 version=$PACKAGE_VERSION
4427 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4428 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4429 [Short copyright string for this version of Emacs.])
4432 ### Specify what sort of things we'll be editing into Makefile and config.h.
4433 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4435 AC_SUBST(configuration)
4440 AC_SUBST(exec_prefix)
4443 AC_SUBST(sharedstatedir)
4444 AC_SUBST(libexecdir)
4449 AC_SUBST(standardlisppath)
4450 AC_SUBST(locallisppath)
4452 AC_SUBST(x_default_search_path)
4454 AC_SUBST(archlibdir)
4459 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4460 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4461 ## end of LIBX_BASE, but nothing ever set it.
4462 AC_SUBST(LD_SWITCH_X_SITE)
4463 AC_SUBST(C_SWITCH_X_SITE)
4464 AC_SUBST(GNUSTEP_CFLAGS)
4466 ## Used in lwlib/Makefile.in.
4467 AC_SUBST(X_TOOLKIT_TYPE)
4469 AC_SUBST(ns_appbindir)
4470 AC_SUBST(ns_appresdir)
4472 AC_SUBST(GNU_OBJC_CFLAGS)
4473 AC_SUBST(OTHER_FILES)
4475 if test -n "${term_header}"; then
4476 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4477 [Define to the header for the built-in window system.])
4480 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4481 [Define to the canonical Emacs configuration name.])
4482 dnl Replace any embedded " characters (bug#13274).
4483 emacs_config_options=`echo "$emacs_config_options " | sed -e 's/--no-create //' -e 's/--no-recursion //' -e 's/ *$//' -e "s/\"/'/g" -e 's/\\\\/\\\\\\\\/g'`
4484 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4485 [Define to the options passed to configure.])
4486 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4487 define this to include extra configuration information.])
4491 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4498 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4499 AC_DEFINE(HAVE_X_WINDOWS, 1,
4500 [Define to 1 if you want to use the X window system.])
4502 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4504 if test "$HAVE_XFT" = "yes"; then
4505 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4506 elif test "$HAVE_FREETYPE" = "yes"; then
4507 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4517 if test "${USE_X_TOOLKIT}" != "none" ; then
4519 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4520 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4521 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4522 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4523 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4527 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4528 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4532 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4533 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4534 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4538 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4539 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4542 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4545 AC_SUBST(WIDGET_OBJ)
4548 case "$USE_X_TOOLKIT" in
4549 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4550 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4551 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS -lXcomposite" ;;
4553 AC_SUBST(TOOLKIT_LIBW)
4555 if test "${opsys}" != "mingw32"; then
4556 if test "$USE_X_TOOLKIT" = "none"; then
4557 LIBXT_OTHER="\$(LIBXSM)"
4558 OLDXMENU_TARGET="really-oldXMenu"
4560 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4561 OLDXMENU_TARGET="really-lwlib"
4564 AC_SUBST(LIBXT_OTHER)
4566 ## The X Menu stuff is present in the X10 distribution, but missing
4567 ## from X11. If we have X10, just use the installed library;
4568 ## otherwise, use our own copy.
4569 if test "${HAVE_X11}" = "yes" ; then
4570 AC_DEFINE(HAVE_X11, 1,
4571 [Define to 1 if you want to use version 11 of X windows.
4572 Otherwise, Emacs expects to use version 10.])
4574 if test "$USE_X_TOOLKIT" = "none"; then
4575 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4577 OLDXMENU="\${lwlibdir}/liblw.a"
4579 LIBXMENU="\$(OLDXMENU)"
4580 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4581 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4583 ## For a syntactically valid Makefile; not actually used for anything.
4584 ## See comments in src/Makefile.in.
4586 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4587 if test "${HAVE_X_WINDOWS}" = "yes"; then
4596 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4603 AC_SUBST(OLDXMENU_TARGET)
4606 AC_SUBST(LIBX_OTHER)
4607 AC_SUBST(OLDXMENU_DEPS)
4609 if test "${HAVE_MENUS}" = "yes" ; then
4610 AC_DEFINE(HAVE_MENUS, 1,
4611 [Define to 1 if you have mouse menus.
4612 (This is automatic if you use X, but the option to specify it remains.)
4613 It is also defined with other window systems that support xmenu.c.])
4616 if test "${GNU_MALLOC}" = "yes" ; then
4617 AC_DEFINE(GNU_MALLOC, 1,
4618 [Define to 1 if you want to use the GNU memory allocator.])
4622 if test "${REL_ALLOC}" = "yes" ; then
4623 AC_DEFINE(REL_ALLOC, 1,
4624 [Define REL_ALLOC if you want to use the relocating allocator for
4627 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4629 AC_SUBST(RALLOC_OBJ)
4631 if test "$opsys" = "cygwin"; then
4632 CYGWIN_OBJ="sheap.o cygw32.o"
4633 ## Cygwin differs because of its unexec().
4635 POST_ALLOC_OBJ=lastfile.o
4636 elif test "$opsys" = "mingw32"; then
4639 POST_ALLOC_OBJ=lastfile.o
4642 PRE_ALLOC_OBJ=lastfile.o
4645 AC_SUBST(CYGWIN_OBJ)
4646 AC_SUBST(PRE_ALLOC_OBJ)
4647 AC_SUBST(POST_ALLOC_OBJ)
4649 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4650 # it temporarily reverts them to their pre-pkg-config values,
4651 # because gnulib needs to work with both src (which uses the
4652 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4653 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4654 # and it therefore needs to run in an environment where LIBS does not
4655 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4656 # for some package unrelated to lib-src.
4659 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4660 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4661 gl_ASSERT_NO_GNULIB_POSIXCHECK
4662 gl_ASSERT_NO_GNULIB_TESTS
4667 if test "${opsys}" = "mingw32"; then
4668 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4669 # Remove unneeded switches from the value of CC that goes to Makefiles
4670 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4674 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4677 ## The -headerpad option tells ld (see man page) to leave room at the
4678 ## end of the header for adding load commands. Needed for dumping.
4679 ## 0x690 is the total size of 30 segment load commands (at 56
4680 ## each); under Cocoa 31 commands are required.
4681 if test "$HAVE_NS" = "yes"; then
4682 libs_nsgui="-framework AppKit"
4683 if test "$NS_IMPL_COCOA" = "yes"; then
4684 libs_nsgui="$libs_nsgui -framework IOKit"
4691 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4693 ## This is here because src/Makefile.in did some extra fiddling around
4694 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4695 ## LD_SWITCH_SYSTEM_TEMACS instead,
4696 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4697 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4700 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4701 ## find X at run-time.
4702 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4703 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4704 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4705 ## had different values in configure (in ac_link) and src/Makefile.in.
4706 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4707 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4710 ## MinGW64 does not prepend an underscore to symbols, so we must
4711 ## pass a different -entry switch to linker. FIXME: It is better
4712 ## to make the entry points the same by changing unexw32.c.
4713 case "$canonical" in
4714 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4715 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4719 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4721 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4724 if test x$ac_enable_profiling != x ; then
4726 *freebsd | gnu-linux) ;;
4727 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4731 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4733 ## MinGW-specific post-link processing of temacs.
4734 TEMACS_POST_LINK=":"
4737 if test "${opsys}" = "mingw32"; then
4738 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4739 ADDSECTION="../nt/addsection\$(EXEEXT)"
4740 ## Preload heap size of temacs.exe in MB.
4741 case "$canonical" in
4742 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4743 *) EMACS_HEAPSIZE=27 ;;
4747 AC_SUBST(ADDSECTION)
4748 AC_SUBST(TEMACS_POST_LINK)
4749 AC_SUBST(EMACS_HEAPSIZE)
4751 ## Common for all window systems
4752 if test "$window_system" != "none"; then
4753 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4754 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4757 AC_SUBST(WINDOW_SYSTEM_OBJ)
4759 AH_TOP([/* GNU Emacs site configuration template file.
4761 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4762 Free Software Foundation, Inc.
4764 This file is part of GNU Emacs.
4766 GNU Emacs is free software: you can redistribute it and/or modify
4767 it under the terms of the GNU General Public License as published by
4768 the Free Software Foundation, either version 3 of the License, or
4769 (at your option) any later version.
4771 GNU Emacs is distributed in the hope that it will be useful,
4772 but WITHOUT ANY WARRANTY; without even the implied warranty of
4773 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4774 GNU General Public License for more details.
4776 You should have received a copy of the GNU General Public License
4777 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4780 /* No code in Emacs #includes config.h twice, but some bits of code
4781 intended to work with other packages as well (like gmalloc.c)
4782 think they can include it as many times as they like. */
4783 #ifndef EMACS_CONFIG_H
4784 #define EMACS_CONFIG_H
4787 AH_BOTTOM([#include <conf_post.h>
4789 #endif /* EMACS_CONFIG_H */
4798 #### Report on what we decided to do.
4799 #### Report GTK as a toolkit, even if it doesn't use Xt.
4800 #### It makes printing result more understandable as using GTK sets
4801 #### toolkit_scroll_bars to yes by default.
4802 if test "${HAVE_GTK}" = "yes"; then
4803 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4806 if test $USE_ACL -ne 0; then
4807 acl_summary="yes $LIB_ACL"
4813 Configured for \`${canonical}'.
4815 Where should the build process find the source code? ${srcdir}
4816 What compiler should emacs be built with? ${CC} ${CFLAGS}
4817 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4818 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4819 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4820 What window system should Emacs use? ${window_system}
4821 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4823 if test -n "${x_includes}"; then
4824 echo " Where do we find X Windows header files? ${x_includes}"
4826 echo " Where do we find X Windows header files? Standard dirs"
4828 if test -n "${x_libraries}"; then
4829 echo " Where do we find X Windows libraries? ${x_libraries}"
4831 echo " Where do we find X Windows libraries? Standard dirs"
4834 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4835 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4836 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4837 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4838 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4839 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4840 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4841 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4843 echo " Does Emacs support sound? ${HAVE_SOUND}"
4845 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4846 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4847 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4848 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4849 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4850 echo " Does Emacs use access control lists? ${acl_summary}"
4851 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4852 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4853 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4855 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4856 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4857 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4858 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4859 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4861 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4863 echo " Does Emacs support Xwidgets? ${HAVE_XWIDGETS}"
4864 echo " Does xwidgets support webkit(requires gtk3)? ${HAVE_WEBKIT}"
4865 echo " Does xwidgets support gobject introspection? ${HAVE_GIR}"
4868 if test -n "${EMACSDATA}"; then
4869 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4871 if test -n "${EMACSDOC}"; then
4872 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4877 if test "$HAVE_NS" = "yes"; then
4879 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4880 The installed application will go to nextstep/Emacs.app and can be
4881 run or moved from there."
4882 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4883 echo "The application will be fully self-contained."
4885 echo "The lisp resources for the application will be installed under ${prefix}.
4886 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4887 to run if these resources are not installed."
4892 if test "${opsys}" = "cygwin"; then
4894 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4900 # Remove any trailing slashes in these variables.
4901 [test "${prefix}" != NONE &&
4902 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4903 test "${exec_prefix}" != NONE &&
4904 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4906 if test "$HAVE_NS" = "yes"; then
4907 if test "$NS_IMPL_GNUSTEP" = yes; then
4908 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4909 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4911 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4912 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4916 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4917 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4918 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4919 dnl (else you get "no `Makefile.am' found for any configure output").
4920 dnl This will work, but you get a config.status that is not quite right
4921 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4922 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4923 dnl it seems better to just live with the duplication.
4924 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4926 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4927 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4928 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4929 leim/Makefile nextstep/Makefile nt/Makefile])
4931 dnl test/ is not present in release tarfiles.
4932 opt_makefile=test/automated/Makefile
4934 if test -f "$srcdir/$opt_makefile.in"; then
4935 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4936 dnl Again, it's best not to use a variable. Though you can add
4937 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4938 AC_CONFIG_FILES([test/automated/Makefile])
4942 dnl admin/ may or may not be present.
4943 opt_makefile=admin/unidata/Makefile
4945 if test -f "$srcdir/$opt_makefile.in"; then
4946 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4947 AC_CONFIG_FILES([admin/unidata/Makefile])
4951 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4953 AC_SUBST(SUBDIR_MAKEFILES_IN)
4955 dnl You might wonder (I did) why epaths.h is generated by running make,
4956 dnl rather than just letting configure generate it from epaths.in.
4957 dnl One reason is that the various paths are not fully expanded (see above);
4958 dnl eg gamedir=${prefix}/var/games/emacs.
4959 dnl Secondly, the GNU Coding standards require that one should be able
4960 dnl to run `make prefix=/some/where/else' and override the values set
4961 dnl by configure. This also explains the `move-if-change' test and
4962 dnl the use of force in the `epaths-force' rule in Makefile.in.
4963 AC_CONFIG_COMMANDS([src/epaths.h], [
4964 if test "${opsys}" = "mingw32"; then
4965 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4967 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4969 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4971 AC_CONFIG_COMMANDS([src/.gdbinit], [
4972 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4973 echo "source $srcdir/src/.gdbinit" > src/.gdbinit