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 Set emacs_config_options to the options of 'configure', quoted for the shell,
28 dnl and then quoted again for a C string. Separate options with spaces.
29 dnl Add some environment variables, if they were passed via the environment
30 dnl rather than on the command-line.
33 dnl This is the documented way to record the args passed to configure,
34 dnl rather than $ac_configure_args.
35 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
37 -n | --no-create | --no-recursion)
39 CFLAGS | CPPFLAGS | LDFLAGS)
40 eval 'test "${'$opt'+set}" = set' || continue
42 *" $opt="*) continue ;;
44 eval opt=$opt=\$$opt ;;
47 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
49 *[["$emacs_shell_specials"]]*)
52 emacs_quote_apostrophes="s/'/'\\\\''/g"
53 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
58 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
59 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
62 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
66 AC_CONFIG_HEADER(src/config.h:src/config.in)
67 AC_CONFIG_SRCDIR(src/lisp.h)
68 AC_CONFIG_AUX_DIR(build-aux)
69 dnl Fairly arbitrary, older versions might work too.
70 AM_INIT_AUTOMAKE(1.11)
72 dnl Support for --program-prefix, --program-suffix and
73 dnl --program-transform-name options
76 dnl It is important that variables on the RHS not be expanded here,
77 dnl hence the single quotes. This is per the GNU coding standards, see
78 dnl (autoconf) Installation Directory Variables
79 dnl See also epaths.h below.
80 lispdir='${datadir}/emacs/${version}/lisp'
81 leimdir='${datadir}/emacs/${version}/leim'
82 standardlisppath='${lispdir}:${leimdir}'
83 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
84 '${datadir}/emacs/site-lisp'
85 lisppath='${locallisppath}:${standardlisppath}'
86 etcdir='${datadir}/emacs/${version}/etc'
87 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
88 etcdocdir='${datadir}/emacs/${version}/etc'
89 gamedir='${localstatedir}/games/emacs'
91 dnl Special option to disable the most of other options.
93 [AS_HELP_STRING([--without-all],
94 [omit almost all features and build
95 small executable with minimal dependencies])],
96 with_features=$withval,
99 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
100 dnl Create a new --with option that defaults to being disabled.
101 dnl NAME is the base name of the option. The shell variable with_NAME
102 dnl will be set to either the user's value (if the option is
103 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
104 dnl option is not specified). Note that the shell variable name is
105 dnl constructed as autoconf does, by replacing non-alphanumeric
106 dnl characters with "_".
107 dnl HELP-STRING is the help text for the option.
108 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
109 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
110 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
113 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
114 dnl Create a new --with option that defaults to $with_features.
115 dnl NAME is the base name of the option. The shell variable with_NAME
116 dnl will be set either to 'no' (for a plain --without-NAME) or to
117 dnl 'yes' (if the option is not specified). Note that the shell
118 dnl variable name is constructed as autoconf does, by replacing
119 dnl non-alphanumeric characters with "_".
120 dnl HELP-STRING is the help text for the option.
121 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
122 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
123 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
126 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
127 if test "$with_pop" = yes; then
128 AC_DEFINE(MAIL_USE_POP)
130 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
132 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
133 if test "$with_kerberos" != no; then
136 AH_TEMPLATE(KERBEROS,
137 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
139 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
140 if test "${with_kerberos5}" != no; then
141 if test "${with_kerberos}" = no; then
145 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
148 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
149 dnl FIXME hesiod support may not be present, so it seems like an error
150 dnl to define, or at least use, this unconditionally.
151 if test "$with_hesiod" != no; then
152 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
155 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
156 if test "$with_mmdf" != no; then
157 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
160 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
161 if test "$with_mail_unlink" != no; then
162 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
165 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
166 [string giving default POP mail host])],
167 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
169 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
170 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
171 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
172 [ case "${withval}" in
173 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
174 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
175 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
180 [with_sound=$with_features])
182 dnl FIXME currently it is not the last.
183 dnl This should be the last --with option, because --with-x is
184 dnl added later on when we find the file name of X, and it's best to
185 dnl keep them together visually.
186 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
187 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
188 [ case "${withval}" in
189 y | ye | yes ) val=gtk ;;
191 l | lu | luc | luci | lucid ) val=lucid ;;
192 a | at | ath | athe | athen | athena ) val=athena ;;
193 m | mo | mot | moti | motif ) val=motif ;;
194 g | gt | gtk ) val=gtk ;;
198 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
199 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
200 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
201 `athena' and `lucid' are synonyms.])
207 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
208 if test "$with_wide_int" = yes; then
209 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
212 dnl _ON results in a '--without' option in the --help output, so
213 dnl the help text should refer to "don't compile", etc.
214 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
215 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
216 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
217 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
218 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
219 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
220 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
221 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
223 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
224 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
225 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
227 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
228 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
229 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
230 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
231 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
233 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
234 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
235 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
236 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
237 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
238 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
239 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
241 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
242 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
243 [ case "${withval}" in
244 y | ye | yes ) val=yes ;;
246 g | gf | gfi | gfil | gfile ) val=gfile ;;
247 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
248 w | w3 | w32 ) val=w32 ;;
249 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
250 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
251 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
252 otherwise for the first of `gfile' or `inotify' that is usable.])
255 with_file_notification=$val
257 [with_file_notification=$with_features])
259 ## For the times when you want to build Emacs but don't have
260 ## a suitable makeinfo, and can live without the manuals.
261 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
262 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
264 ## Makefile.in needs the cache file name.
267 ## This is an option because I do not know if all info/man support
268 ## compressed files, nor how to test if they do so.
269 OPTION_DEFAULT_ON([compress-install],
270 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
271 make GZIP_PROG= install])
273 AC_ARG_WITH([pkg-config-prog],dnl
274 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
275 [file name of pkg-config for finding GTK and librsvg])])
276 if test "X${with_pkg_config_prog}" != X; then
277 if test "${with_pkg_config_prog}" != yes; then
278 PKG_CONFIG="${with_pkg_config_prog}"
282 AC_ARG_WITH(gameuser,dnl
283 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
284 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
285 && gameuser="${with_gameuser}"
286 test "X$gameuser" = X && gameuser=games
288 AC_ARG_WITH([gnustep-conf],dnl
289 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
290 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
291 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
292 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
293 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
294 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
296 AC_ARG_ENABLE(ns-self-contained,
297 [AS_HELP_STRING([--disable-ns-self-contained],
298 [disable self contained build under NeXTstep])],
299 EN_NS_SELF_CONTAINED=$enableval,
300 EN_NS_SELF_CONTAINED=yes)
302 AC_ARG_ENABLE(locallisppath,
303 [AS_HELP_STRING([--enable-locallisppath=PATH],
304 [directories Emacs should search for lisp files specific
306 if test "${enableval}" = "no"; then
308 elif test "${enableval}" != "yes"; then
309 locallisppath=${enableval}
312 AC_ARG_ENABLE(checking,
313 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
314 [enable expensive run-time checks. With LIST,
315 enable only specific categories of checks.
316 Categories are: all,yes,no.
317 Flags are: stringbytes, stringoverrun, stringfreelist,
318 xmallocoverrun, conslist, glyphs])],
319 [ac_checking_flags="${enableval}"],[])
320 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
321 for check in $ac_checking_flags
324 # these set all the flags to specific states
325 yes) ac_enable_checking=1 ;;
326 no) ac_enable_checking= ;
327 ac_gc_check_stringbytes= ;
328 ac_gc_check_string_overrun= ;
329 ac_gc_check_string_free_list= ;
330 ac_xmalloc_overrun= ;
331 ac_gc_check_cons_list= ;
333 all) ac_enable_checking=1 ;
334 ac_gc_check_stringbytes=1 ;
335 ac_gc_check_string_overrun=1 ;
336 ac_gc_check_string_free_list=1 ;
337 ac_xmalloc_overrun=1 ;
338 ac_gc_check_cons_list=1 ;
340 # these enable particular checks
341 stringbytes) ac_gc_check_stringbytes=1 ;;
342 stringoverrun) ac_gc_check_string_overrun=1 ;;
343 stringfreelist) ac_gc_check_string_free_list=1 ;;
344 xmallocoverrun) ac_xmalloc_overrun=1 ;;
345 conslist) ac_gc_check_cons_list=1 ;;
346 glyphs) ac_glyphs_debug=1 ;;
347 *) AC_MSG_ERROR(unknown check category $check) ;;
352 if test x$ac_enable_checking != x ; then
353 AC_DEFINE(ENABLE_CHECKING, 1,
354 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
356 if test x$ac_gc_check_stringbytes != x ; then
357 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
358 [Define this temporarily to hunt a bug. If defined, the size of
359 strings is redundantly recorded in sdata structures so that it can
360 be compared to the sizes recorded in Lisp strings.])
362 if test x$ac_gc_check_string_overrun != x ; then
363 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
364 [Define this to check for short string overrun.])
366 if test x$ac_gc_check_string_free_list != x ; then
367 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
368 [Define this to check the string free list.])
370 if test x$ac_xmalloc_overrun != x ; then
371 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
372 [Define this to check for malloc buffer overrun.])
374 if test x$ac_gc_check_cons_list != x ; then
375 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
376 [Define this to check for errors in cons list.])
378 if test x$ac_glyphs_debug != x ; then
379 AC_DEFINE(GLYPH_DEBUG, 1,
380 [Define this to enable glyphs debugging code.])
383 AC_ARG_ENABLE(check-lisp-object-type,
384 [AS_HELP_STRING([--enable-check-lisp-object-type],
385 [enable compile time checks for the Lisp_Object data type.
386 This is useful for development for catching certain types of bugs.])],
387 if test "${enableval}" != "no"; then
388 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
389 [Define this to enable compile time checks for the Lisp_Object data type.])
393 dnl The name of this option is unfortunate. It predates, and has no
394 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
395 dnl Actually, it stops it working.
396 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
397 AC_ARG_ENABLE(profiling,
398 [AS_HELP_STRING([--enable-profiling],
399 [build emacs with low-level, gprof profiling support.
400 Mainly useful for debugging Emacs itself. May not work on
401 all platforms. Stops profiler.el working.])],
402 [ac_enable_profiling="${enableval}"],[])
403 if test x$ac_enable_profiling != x ; then
404 PROFILING_CFLAGS="-DPROFILING=1 -pg"
408 AC_SUBST(PROFILING_CFLAGS)
410 AC_ARG_ENABLE(autodepend,
411 [AS_HELP_STRING([--enable-autodepend],
412 [automatically generate dependencies to .h-files.
413 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
415 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
417 AC_ARG_ENABLE(gtk-deprecation-warnings,
418 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
419 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
420 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
422 #### Make srcdir absolute, if it isn't already. It's important to
423 #### avoid running the file name through pwd unnecessarily, since pwd can
424 #### give you automounter prefixes, which can go away. We do all this
425 #### so Emacs can find its files when run uninstalled.
426 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
429 [[\\/]]* | ?:[[\\/]]*) ;;
431 ## We may be able to use the $PWD environment variable to make this
432 ## absolute. But sometimes PWD is inaccurate.
433 ## Note: we used to use $PWD at the end instead of `pwd`,
434 ## but that tested only for a well-formed and valid PWD,
435 ## it did not object when PWD was well-formed and valid but just wrong.
436 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
440 srcdir=`(cd "$srcdir"; pwd)`
443 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
446 #### When building with MinGW inside the MSYS tree, 'pwd' produces
447 #### directories relative to the root of the MSYS tree,
448 #### e.g. '/home/user/foo' instead of '/d/MSYS/home/user/foo'. When
449 #### such a value of srcdir is written to the top-level Makefile, it
450 #### gets propagated to src/epaths.h, and that causes temacs to fail,
451 #### because, being a MinGW program that knows nothing of MSYS root
452 #### substitution, it cannot find the data directory. "pwd -W"
453 #### produces Windows-style 'd:/foo/bar' absolute directory names, so
454 #### we use it here to countermand that lossage.
455 test "$MSYSTEM" = "MINGW32" && srcdir=`(cd "$srcdir"; pwd -W | sed -e 's,^\([[A-Za-z]]\):,/\1,')`
457 ### Canonicalize the configuration name.
461 configuration=${host_alias-${build_alias-$host}}
463 dnl This used to use changequote, but, apart from `changequote is evil'
464 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
465 dnl the great gob of text. Thus it's not processed for possible expansion.
466 dnl Just make sure the brackets remain balanced.
468 dnl Since Emacs can't find matching pairs of quotes, boundaries are
469 dnl indicated by comments.
473 ### If you add support for a new configuration, add code to this
474 ### switch statement to recognize your configuration name and select
475 ### the appropriate operating system file.
477 ### You would hope that you could choose an s/*.h
478 ### file based on the operating system portion. However, it turns out
479 ### that each s/*.h file is pretty manufacturer-specific.
480 ### So we basically have to have a special case for each
481 ### configuration name.
483 ### As far as handling version numbers on operating systems is
484 ### concerned, make sure things will fail in a fixable way. If
485 ### /etc/MACHINES doesn't say anything about version numbers, be
486 ### prepared to handle anything reasonably. If version numbers
487 ### matter, be sure /etc/MACHINES says something about it.
490 case "${canonical}" in
492 ## GNU/Linux and similar ports
507 ## FreeBSD kernel + glibc based userland
522 ## Apple Darwin / Mac OS X
524 case "${canonical}" in
531 ## Use fink packages if available.
532 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
533 ## if test -d /sw/include && test -d /sw/lib; then
534 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
535 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
544 ## HP 9000 series 700 and 800, running HP/UX
548 hppa*-hp-hpux1[1-9]* )
550 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
554 rs6000-ibm-aix4.[23]* )
557 powerpc-ibm-aix4.[23]* )
560 rs6000-ibm-aix[56]* )
563 powerpc-ibm-aix[56]* )
567 ## Silicon Graphics machines
571 # Without defining _LANGUAGE_C, things get masked out in the headers
572 # so that, for instance, grepping for `free' in stdlib.h fails and
573 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
574 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
579 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
580 | x86_64-*-solaris2* | x86_64-*-sunos5*)
581 case "${canonical}" in
583 amd64-*-*|x86_64-*-*) ;;
587 case "${canonical}" in
588 *-sunos5.6* | *-solaris2.6* )
592 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
594 emacs_check_sunpro_c=yes
596 *-sunos5* | *-solaris* )
598 emacs_check_sunpro_c=yes
601 ## Watch out for a compiler that we know will not work.
602 case "${canonical}" in
603 *-solaris* | *-sunos5* )
604 if [ "x$CC" = x/usr/ucb/cc ]; then
605 ## /usr/ucb/cc doesn't work;
606 ## we should find some other compiler that does work.
614 ## Intel 386 machines where we don't care about the manufacturer.
616 case "${canonical}" in
617 *-darwin* ) opsys=darwin ;;
620 # MinGW overrides and adds some system headers in nt/inc.
621 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
623 *-sysv4.2uw* ) opsys=unixware ;;
624 *-sysv5uw* ) opsys=unixware ;;
625 *-sysv5OpenUNIX* ) opsys=unixware ;;
626 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
635 ### If the code above didn't choose an operating system, just choose
636 ### an operating system based on the configuration name. You really
637 ### only want to use this when you have no idea what the right
638 ### operating system is; if you know what operating systems a machine
639 ### runs, it's cleaner to make it explicit in the case statement
641 if test x"${opsys}" = x; then
642 case "${canonical}" in
643 *-gnu* ) opsys=gnu ;;
653 if test $unported = yes; then
654 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
655 Check `etc/MACHINES' for recognized configuration names.])
659 #### Choose a compiler.
661 dnl Sets GCC=yes if using gcc.
665 if test x$GCC = xyes; then
666 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
668 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
671 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
672 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
673 dnl that clash with MinGW.
674 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
676 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
677 # as we don't use them.
678 AC_DEFUN([gl_FCNTL_O_FLAGS])
679 # Avoid gnulib's threadlib module, as we do threads our own way.
680 AC_DEFUN([gl_THREADLIB])
682 # Initialize gnulib right after choosing the compiler.
683 dnl Amongst other things, this sets AR and ARFLAGS.
686 if test "$ac_test_CFLAGS" != set; then
687 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
688 # if -g3 works and the user does not specify CFLAGS.
689 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
692 emacs_g3_CFLAGS='-g3';;
694 emacs_g3_CFLAGS='-g3 -O2';;
698 if test -n "$emacs_g3_CFLAGS"; then
699 emacs_save_CFLAGS=$CFLAGS
700 CFLAGS=$emacs_g3_CFLAGS
701 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
702 [emacs_cv_prog_cc_g3],
703 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
704 [emacs_cv_prog_cc_g3=yes],
705 [emacs_cv_prog_cc_g3=no])])
706 if test $emacs_cv_prog_cc_g3 != yes; then
707 CFLAGS=$emacs_save_CFLAGS
709 if test $opsys = mingw32; then
710 CFLAGS="$CFLAGS -gdwarf-2"
717 # No optimization flag was inferred for this non-GCC compiler.
718 # Try -O. This is needed for xlc on AIX; see Bug#14258.
719 emacs_save_CFLAGS=$CFLAGS
720 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
722 AC_CACHE_CHECK([whether $CC accepts -O],
723 [emacs_cv_prog_cc_o],
724 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
725 [emacs_cv_prog_cc_o=yes],
726 [emacs_cv_prog_cc_o=no])])
727 if test $emacs_cv_prog_cc_o != yes; then
728 CFLAGS=$emacs_save_CFLAGS
733 AC_ARG_ENABLE([gcc-warnings],
734 [AS_HELP_STRING([--enable-gcc-warnings],
735 [turn on lots of GCC warnings/errors. This is intended for
736 developers, and may generate false alarms when used
737 with older or non-GNU development tools.])],
740 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
742 gl_gcc_warnings=$enableval],
746 AC_ARG_ENABLE(link-time-optimization,
747 [AS_HELP_STRING([--enable-link-time-optimization],
748 [build emacs with link-time optimization.
749 This is supported only for GCC since 4.5.0.])],
750 if test "${enableval}" != "no"; then
751 AC_MSG_CHECKING([whether link-time optimization is supported])
753 if test x$GCC = xyes; then
754 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
755 if test x$CPUS != x; then
761 CFLAGS="$CFLAGS $LTO"
762 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
763 [ac_lto_supported=yes], [ac_lto_supported=no])
766 AC_MSG_RESULT([$ac_lto_supported])
767 if test "$ac_lto_supported" = "yes"; then
768 CFLAGS="$CFLAGS $LTO"
772 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
773 # ------------------------------------------------
774 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
775 # Otherwise, run RUN-IF-NOT-FOUND.
776 AC_DEFUN([gl_GCC_VERSION_IFELSE],
780 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
783 # error "your version of gcc is older than $1.$2"
790 # When compiling with GCC, prefer -isystem to -I when including system
791 # include files, to avoid generating useless diagnostics for the files.
792 if test "$gl_gcc_warnings" != yes; then
797 # This, $nw, is the list of warnings we disable.
800 case $with_x_toolkit in
801 lucid | athena | motif)
802 # Old toolkits mishandle 'const'.
803 nw="$nw -Wwrite-strings"
806 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
809 AC_SUBST([WERROR_CFLAGS])
811 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
812 nw="$nw -Woverlength-strings" # Not a problem these days
813 nw="$nw -Wlogical-op" # any use of fwrite provokes this
814 nw="$nw -Wformat-nonliteral" # we do this a lot
815 nw="$nw -Wvla" # warnings in gettext.h
816 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
817 nw="$nw -Wswitch-default" # Too many warnings for now
818 nw="$nw -Winline" # OK to ignore 'inline'
819 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
820 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
821 # signed overflow has undefined behavior
822 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
823 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
824 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
826 # Emacs doesn't care about shadowing; see
827 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
830 # Emacs's use of alloca inhibits protecting the stack.
831 nw="$nw -Wstack-protector"
833 # The following line should be removable at some point.
834 nw="$nw -Wsuggest-attribute=pure"
836 # This part is merely for shortening the command line,
837 # since -Wno-FOO needs to be added below regardless.
838 nw="$nw -Wmissing-field-initializers"
840 nw="$nw -Wtype-limits"
841 nw="$nw -Wunused-parameter"
843 # clang is unduly picky about some things.
844 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
851 [emacs_cv_clang=yes],
852 [emacs_cv_clang=no])])
853 if test $emacs_cv_clang = yes; then
854 nw="$nw -Wcast-align"
857 gl_MANYWARN_ALL_GCC([ws])
858 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
862 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
863 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
864 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
865 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
866 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
867 gl_WARN_ADD([-Wno-format-nonliteral])
869 # In spite of excluding -Wlogical-op above, it is enabled, as of
870 # gcc 4.5.0 20090517.
871 gl_WARN_ADD([-Wno-logical-op])
873 # More things that clang is unduly picky about.
874 if test $emacs_cv_clang = yes; then
875 gl_WARN_ADD([-Wno-format-extra-args])
876 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
877 gl_WARN_ADD([-Wno-unused-command-line-argument])
878 gl_WARN_ADD([-Wno-unused-value])
881 gl_WARN_ADD([-fdiagnostics-show-option])
882 gl_WARN_ADD([-funit-at-a-time])
884 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
885 AH_VERBATIM([FORTIFY_SOURCE],
886 [/* Enable compile-time and run-time bounds-checking, and some warnings,
887 without upsetting glibc 2.15+. */
888 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
889 # define _FORTIFY_SOURCE 2
892 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
894 # We use a slightly smaller set of warning options for lib/.
895 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
897 nw="$nw -Wunused-macros"
899 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
900 AC_SUBST([GNULIB_WARN_CFLAGS])
905 dnl Some other nice autoconf tests.
906 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
909 dnl if test "x$RANLIB" = x; then
914 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
915 dnl can be made to directories. This is not relevant for our usage, and
916 dnl excludes some cases that work fine for us. Eg MS Windows or files
917 dnl hosted on AFS, both examples where simple links work, but links to
918 dnl directories fail. We use a cut-down version instead.
921 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
922 rm -f conf$$ conf$$.file
924 LN_S_FILEONLY='cp -p'
926 if (echo >conf$$.file) 2>/dev/null; then
927 if ln -s conf$$.file conf$$ 2>/dev/null; then
928 LN_S_FILEONLY='ln -s'
929 elif ln conf$$.file conf$$ 2>/dev/null; then
934 rm -f conf$$ conf$$.file
936 if test "$LN_S_FILEONLY" = "ln -s"; then
939 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
942 AC_SUBST(LN_S_FILEONLY)
945 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
946 dnl doesn't support links to directories, as in "ln file dir". But that
947 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
948 dnl executables at "make install" time.
949 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
950 dnl for more details.
951 if test "$opsys" = "mingw32"; then
955 AC_PATH_PROG(INSTALL_INFO, install-info, :,
956 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
957 dnl Don't use GZIP, which is used by gzip for additional parameters.
958 AC_PATH_PROG(GZIP_PROG, gzip)
960 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
961 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
963 if test $opsys = gnu-linux; then
964 AC_PATH_PROG(PAXCTL, paxctl,,
965 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
966 if test "X$PAXCTL" != X; then
967 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
968 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
969 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
970 else AC_MSG_RESULT(no); PAXCTL=""; fi])
974 ## Need makeinfo >= 4.7 (?) to build the manuals.
975 AC_PATH_PROG(MAKEINFO, makeinfo, no)
976 dnl By this stage, configure has already checked for egrep and set EGREP,
977 dnl or exited with an error if no egrep was found.
978 if test "$MAKEINFO" != "no"; then
980 $MAKEINFO --version 2> /dev/null |
981 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
987 ## Makeinfo is unusual. For a released Emacs, the manuals are
988 ## pre-built, and not deleted by the normal clean rules. makeinfo is
989 ## therefore in the category of "special tools" not normally required, which
990 ## configure does not have to check for (eg autoconf itself).
991 ## In a Bazaar checkout on the other hand, the manuals are not included.
992 ## So makeinfo is a requirement to build from Bazaar, and configure
993 ## should test for it as it does for any other build requirement.
994 ## We use the presence of $srcdir/info/emacs to distinguish a release,
995 ## with pre-built manuals, from a Bazaar checkout.
998 if test "$MAKEINFO" = "no"; then
1000 if test "x${with_makeinfo}" = "xno"; then
1002 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1003 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1004 source tree does not seem to have pre-built manuals in the `info' directory.
1005 Either install a suitable version of makeinfo, or re-run configure
1006 with the `--without-makeinfo' option to build without the manuals.] )
1009 AC_SUBST(HAVE_MAKEINFO)
1011 dnl Just so that there is only a single place we need to edit.
1013 INFO_OPTS=--no-split
1017 if test $opsys = mingw32; then
1018 DOCMISC_W32=efaq-w32
1022 AC_SUBST(DOCMISC_W32)
1024 dnl Add our options to ac_link now, after it is set up.
1026 if test x$GCC = xyes; then
1027 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1028 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1030 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1031 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1034 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1035 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1036 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1037 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1038 dnl if not built to support GNU ld.
1040 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1041 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1042 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1043 dnl Eg "make LDFLAGS=... all" could run into problems,
1044 dnl http://bugs.debian.org/684788
1045 dnl * unnecessary, since temacs is the only thing that actually needs it.
1046 dnl Indeed this is where it was originally, prior to:
1047 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1048 late_LDFLAGS="$LDFLAGS"
1049 if test x$GCC = xyes; then
1050 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1052 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1055 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1057 AC_MSG_CHECKING([for -znocombreloc])
1058 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1059 [AC_MSG_RESULT(yes)],
1060 LDFLAGS_NOCOMBRELOC=
1061 [AC_MSG_RESULT(no)])
1063 LDFLAGS="$late_LDFLAGS"
1065 dnl The function dump-emacs will not be defined and temacs will do
1066 dnl (load "loadup") automatically unless told otherwise.
1067 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1069 your-opsys-here) CANNOT_DUMP=yes ;;
1072 test "$CANNOT_DUMP" = "yes" && \
1073 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1075 AC_SUBST(CANNOT_DUMP)
1078 UNEXEC_OBJ=unexelf.o
1080 # MSDOS uses unexcoff.o
1082 UNEXEC_OBJ=unexaix.o
1088 UNEXEC_OBJ=unexmacosx.o
1091 UNEXEC_OBJ=unexhp9k800.o
1094 UNEXEC_OBJ=unexw32.o
1097 # Use the Solaris dldump() function, called from unexsol.c, to dump
1098 # emacs, instead of the generic ELF dump code found in unexelf.c.
1099 # The resulting binary has a complete symbol table, and is better
1100 # for debugging and other observability tools (debuggers, pstack, etc).
1102 # If you encounter a problem using dldump(), please consider sending
1103 # a message to the OpenSolaris tools-linking mailing list:
1104 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1106 # It is likely that dldump() works with older Solaris too, but this has
1107 # not been tested, so for now this change is for Solaris 10 or newer.
1108 UNEXEC_OBJ=unexsol.o
1115 ## Let `ld' find image libs and similar things in /usr/local/lib.
1116 ## The system compiler, GCC, has apparently been modified to not
1117 ## look there, contrary to what a stock GCC would do.
1118 ### It's not our place to do this. See bug#10313#17.
1119 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1124 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1125 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1129 ### It's not our place to do this. See bug#10313#17.
1130 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1135 ## Han Boetes <han@boetes.org> says this is necessary,
1136 ## otherwise Emacs dumps core on elf systems.
1137 LD_SWITCH_SYSTEM="-Z"
1140 AC_SUBST(LD_SWITCH_SYSTEM)
1142 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1144 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1145 ## which has not been defined yet. When this was handled with cpp,
1146 ## it was expanded to null when configure sourced the s/*.h file.
1147 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1148 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1149 ## (or somesuch), but because it is supposed to go at the _front_
1150 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1151 ## Compare with the gnu-linux case below, which added to the end
1152 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1153 ## LD_SWITCH_SYSTEM_TEMACS.
1156 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1163 AC_CHECK_DECL([__ELF__])
1164 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1165 ## With ELF, make sure that all common symbols get allocated to in the
1166 ## data section. Otherwise, the dump of temacs may miss variables in
1167 ## the shared library that have been initialized. For example, with
1168 ## GNU libc, __malloc_initialized would normally be resolved to the
1169 ## shared library's .bss section, which is fatal.
1170 if test "x$GCC" = "xyes"; then
1171 C_SWITCH_MACHINE="-fno-common"
1173 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1176 UNEXEC_OBJ=unexalpha.o
1180 AC_SUBST(C_SWITCH_MACHINE)
1182 AC_SUBST(UNEXEC_OBJ)
1185 ## Some programs in src produce warnings saying certain subprograms
1186 ## are too complex and need a MAXMEM value greater than 2000 for
1187 ## additional optimization. --nils@exp-math.uni-essen.de
1188 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1189 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1190 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1191 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1192 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1193 AC_SUBST(C_SWITCH_SYSTEM)
1198 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1199 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1201 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1203 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1205 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1207 ## Motif needs -lgen.
1208 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1211 AC_SUBST(LIBS_SYSTEM)
1213 ### Make sure subsequent tests use flags consistent with the build flags.
1215 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1216 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1218 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1221 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1222 AC_DEFUN([AC_TYPE_SIZE_T])
1223 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1224 AC_DEFUN([AC_TYPE_UID_T])
1228 dnl Current possibilities handled by sed (aix4-2 -> aix,
1229 dnl gnu-linux -> gnu/linux, etc.):
1230 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1231 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1232 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1239 ## Adding -lm confuses the dynamic linker, so omit it.
1242 freebsd | dragonfly )
1243 SYSTEM_TYPE=berkeley-unix
1245 gnu-linux | gnu-kfreebsd )
1247 hpux10-20 | hpux11 )
1251 SYSTEM_TYPE=windows-nt
1253 dnl NB this may be adjusted below.
1255 SYSTEM_TYPE=berkeley-unix
1259 SYSTEM_TYPE=usg-unix-v
1265 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1266 [The type of system you are compiling for; sets `system-type'.])
1269 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1270 pre_PKG_CONFIG_LIBS=$LIBS
1272 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1274 dnl This function definition taken from Gnome 2.0
1275 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1276 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1277 dnl also defines GSTUFF_PKG_ERRORS on error
1278 AC_DEFUN([PKG_CHECK_MODULES], [
1281 if test "$PKG_CONFIG" = "no" ; then
1282 ifelse([$4], , [AC_MSG_ERROR([
1283 *** 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])
1285 PKG_CONFIG_MIN_VERSION=0.9.0
1286 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1287 AC_MSG_CHECKING(for $2)
1289 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1290 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1291 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1298 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1299 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1300 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1306 ## If we have a custom action on failure, don't print errors, but
1307 ## do set a variable so people can do so. Do it in a subshell
1308 ## to capture any diagnostics in invoking pkg-config.
1309 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1310 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1316 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1317 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1321 if test $succeeded = yes; then
1322 ifelse([$3], , :, [$3])
1324 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.])], [$4])
1329 if test "${with_sound}" != "no"; then
1330 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1331 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1332 have_sound_header=yes, [], [
1334 #define WIN32_LEAN_AND_MEAN
1335 #include <windows.h>
1338 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1339 AC_MSG_ERROR([OSS sound support requested but not found.])
1341 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1342 # Emulation library used on NetBSD.
1343 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1344 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1345 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1346 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1347 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1351 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1353 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1354 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1355 if test $HAVE_ALSA = yes; then
1356 SAVE_CFLAGS="$CFLAGS"
1358 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1359 LIBS="$ALSA_LIBS $LIBS"
1360 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1361 emacs_alsa_normal=yes,
1362 emacs_alsa_normal=no)
1363 if test "$emacs_alsa_normal" != yes; then
1364 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1365 [[snd_lib_error_set_handler (0);]])],
1366 emacs_alsa_subdir=yes,
1367 emacs_alsa_subdir=no)
1368 if test "$emacs_alsa_subdir" != yes; then
1369 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1371 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1374 CFLAGS="$SAVE_CFLAGS"
1376 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1377 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1378 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1379 elif test "${with_sound}" = "alsa"; then
1380 AC_MSG_ERROR([ALSA sound support requested but not found.])
1382 fi dnl with_sound = alsa|yes
1384 dnl Define HAVE_SOUND if we have sound support. We know it works and
1385 dnl compiles only on the specified platforms. For others, it
1386 dnl probably doesn't make sense to try.
1387 dnl FIXME So surely we should bypass this whole section if not using
1388 dnl one of these platforms?
1389 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1391 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1392 dnl Adjust the --with-sound help text if you change this.
1393 gnu-linux|freebsd|netbsd|mingw32)
1394 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1400 AC_SUBST(CFLAGS_SOUND)
1403 dnl checks for header files
1404 AC_CHECK_HEADERS_ONCE(
1408 sys/utsname.h pwd.h utmp.h util.h)
1410 AC_MSG_CHECKING(if personality LINUX32 can be set)
1411 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1412 emacs_cv_personality_linux32=yes,
1413 emacs_cv_personality_linux32=no)
1414 AC_MSG_RESULT($emacs_cv_personality_linux32)
1416 if test $emacs_cv_personality_linux32 = yes; then
1417 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1418 [Define to 1 if personality LINUX32 can be set.])
1421 dnl On Solaris 8 there's a compilation warning for term.h because
1422 dnl it doesn't define `bool'.
1423 AC_CHECK_HEADERS(term.h, , , -)
1425 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1427 if test $ac_cv_have_decl_sys_siglist != yes; then
1428 # For Tru64, at least:
1429 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1434 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1435 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1436 #if HAVE_SYS_SOCKET_H
1437 #include <sys/socket.h>
1439 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1440 #if HAVE_SYS_SOCKET_H
1441 #include <sys/socket.h>
1443 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1444 #if HAVE_SYS_SOCKET_H
1445 #include <sys/socket.h>
1448 dnl checks for structure members
1449 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1450 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1451 struct ifreq.ifr_addr,
1452 struct ifreq.ifr_addr.sa_len], , ,
1453 [AC_INCLUDES_DEFAULT
1454 #if HAVE_SYS_SOCKET_H
1455 #include <sys/socket.h>
1461 dnl Check for endianness.
1462 dnl AC_C_BIGENDIAN is done by gnulib.
1464 dnl check for Make feature
1465 dnl AC_PROG_MAKE_SET is done by Automake.
1470 dnl check for GNU Make if we have GCC and autodepend is on.
1471 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1472 AC_MSG_CHECKING([whether we are using GNU Make])
1474 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1475 if test "x$testval" != x; then
1478 ac_enable_autodepend=no
1480 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1481 if test $HAVE_GNU_MAKE = yes; then
1482 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1483 SAVE_CFLAGS="$CFLAGS"
1484 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1485 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1486 CFLAGS="$SAVE_CFLAGS"
1487 test -f deps.d || ac_enable_autodepend=no
1489 AC_MSG_RESULT([$ac_enable_autodepend])
1491 if test $ac_enable_autodepend = yes; then
1492 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1493 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1494 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1495 deps_frag=autodeps.mk
1498 deps_frag=$srcdir/src/$deps_frag
1501 AC_SUBST_FILE(deps_frag)
1504 lisp_frag=$srcdir/src/lisp.mk
1505 AC_SUBST_FILE(lisp_frag)
1508 dnl checks for operating system services
1509 AC_SYS_LONG_FILE_NAMES
1511 #### Choose a window system.
1513 ## We leave window_system equal to none if
1514 ## we end up building without one. Any new window system should
1515 ## set window_system to an appropriate value and add objects to
1516 ## window-system-specific substs.
1520 if test "$no_x" != yes; then
1524 LD_SWITCH_X_SITE_RPATH=
1525 if test "${x_libraries}" != NONE; then
1526 if test -n "${x_libraries}"; then
1527 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1528 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1530 x_default_search_path=""
1531 x_search_path=${x_libraries}
1532 if test -z "${x_search_path}"; then
1533 x_search_path=/usr/lib
1535 for x_library in `echo ${x_search_path}: | \
1536 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1538 ${x_library}/X11/%L/%T/%N%C%S:\
1539 ${x_library}/X11/%l/%T/%N%C%S:\
1540 ${x_library}/X11/%T/%N%C%S:\
1541 ${x_library}/X11/%L/%T/%N%S:\
1542 ${x_library}/X11/%l/%T/%N%S:\
1543 ${x_library}/X11/%T/%N%S"
1544 if test x"${x_default_search_path}" = x; then
1545 x_default_search_path=${x_search_path}
1547 x_default_search_path="${x_search_path}:${x_default_search_path}"
1551 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1553 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1554 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1557 if test x"${x_includes}" = x; then
1558 bitmapdir=/usr/include/X11/bitmaps
1560 # accumulate include directories that have X11 bitmap subdirectories
1562 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1563 if test -d "${bmd}/X11/bitmaps"; then
1564 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1566 if test -d "${bmd}/bitmaps"; then
1567 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1570 if test ${bmd_acc} != "dummyval"; then
1571 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1578 tmp_CPPFLAGS="$CPPFLAGS"
1579 tmp_CFLAGS="$CFLAGS"
1580 CPPFLAGS="$CPPFLAGS -x objective-c"
1581 CFLAGS="$CFLAGS -x objective-c"
1584 if test "${with_ns}" != no; then
1585 if test "${opsys}" = darwin; then
1587 ns_appdir=`pwd`/nextstep/Emacs.app
1588 ns_appbindir=${ns_appdir}/Contents/MacOS
1589 ns_appresdir=${ns_appdir}/Contents/Resources
1590 ns_appsrc=Cocoa/Emacs.base
1591 elif test -f $GNUSTEP_CONFIG_FILE; then
1593 ns_appdir=`pwd`/nextstep/Emacs.app
1594 ns_appbindir=${ns_appdir}
1595 ns_appresdir=${ns_appdir}/Resources
1596 ns_appsrc=GNUstep/Emacs.base
1597 dnl FIXME sourcing this several times in subshells seems inefficient.
1598 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1599 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1600 dnl I seemed to need these as well with GNUstep-startup 0.25.
1601 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1602 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1603 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1604 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1605 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1606 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1607 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1608 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1609 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1610 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1611 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1612 dnl If they had chosen to either define it or not, we could have
1613 dnl just used AC_CHECK_DECL here.
1614 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1615 emacs_cv_objc_exceptions,
1616 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1617 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1621 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1622 if test $emacs_cv_objc_exceptions = yes; then
1623 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1624 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1625 [Define if GNUstep uses ObjC exceptions.])
1626 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1630 dnl This is only used while we test the NS headers, it gets reset below.
1631 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1633 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1634 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1635 files are missing or cannot be compiled.])])
1638 if test "${NS_IMPL_COCOA}" = "yes"; then
1639 AC_MSG_CHECKING([for OSX 10.4 or newer])
1640 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1642 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1643 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1646 #error "OSX 10.4 or newer required"
1650 ns_osx_have_104=yes,
1652 AC_MSG_RESULT([$ns_osx_have_104])
1654 if test $ns_osx_have_104 = no; then
1655 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1657 AC_MSG_CHECKING([for OSX 10.5 or newer])
1658 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1660 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1661 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1664 #error "OSX 10.5 not found"
1668 ns_osx_have_105=yes,
1670 AC_MSG_RESULT([$ns_osx_have_105])
1671 if test $ns_osx_have_105 = yes; then
1672 macfont_file="macfont.o"
1675 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1677 ns_have_nsinteger=yes,
1678 ns_have_nsinteger=no)
1679 if test $ns_have_nsinteger = yes; then
1680 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1684 AC_SUBST(LIBS_GNUSTEP)
1686 INSTALL_ARCH_INDEP_EXTRA=install-etc
1687 ns_self_contained=no
1690 if test "${HAVE_NS}" = yes; then
1691 if test "$with_toolkit_scroll_bars" = "no"; then
1692 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1695 window_system=nextstep
1696 # set up packaging dirs
1697 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1698 ns_self_contained=yes
1699 prefix=${ns_appresdir}
1700 exec_prefix=${ns_appbindir}
1701 dnl This one isn't really used, only archlibdir is.
1702 libexecdir="\${ns_appbindir}/libexec"
1703 archlibdir="\${ns_appbindir}/libexec"
1704 etcdocdir="\${ns_appresdir}/etc"
1705 etcdir="\${ns_appresdir}/etc"
1706 dnl FIXME maybe set datarootdir instead.
1707 dnl That would also get applications, icons, man.
1708 infodir="\${ns_appresdir}/info"
1709 mandir="\${ns_appresdir}/man"
1710 lispdir="\${ns_appresdir}/lisp"
1711 leimdir="\${ns_appresdir}/leim"
1712 INSTALL_ARCH_INDEP_EXTRA=
1715 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1717 CFLAGS="$tmp_CFLAGS"
1718 CPPFLAGS="$tmp_CPPFLAGS"
1719 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1720 AC_SUBST(ns_self_contained)
1722 AC_SUBST(NS_OBJC_OBJ)
1733 if test "${with_w32}" != no; then
1736 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1737 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1738 cannot be found.])])
1741 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1744 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1749 if test "${opsys}" = "mingw32"; then
1750 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1751 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1752 #include <windows.h>
1753 #include <usp10.h>]],
1754 [[PIMAGE_NT_HEADERS pHeader;
1755 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1756 [emacs_cv_w32api=yes
1759 AC_MSG_RESULT($emacs_cv_w32api)
1760 if test "${emacs_cv_w32api}" = "no"; then
1761 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1772 if test "${HAVE_W32}" = "yes"; then
1773 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1774 AC_CHECK_TOOL(WINDRES, [windres],
1775 [AC_MSG_ERROR([No resource compiler found.])])
1776 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1777 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1778 EMACSRES="emacs.res"
1779 case "$canonical" in
1780 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1781 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1783 UPDATE_MANIFEST=update-game-score.exe.manifest
1784 if test "${opsys}" = "cygwin"; then
1785 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1786 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1787 # Tell the linker that emacs.res is an object (which we compile from
1788 # the rc file), not a linker script.
1789 W32_RES_LINK="-Wl,emacs.res"
1791 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1792 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1793 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1794 W32_RES_LINK="\$(EMACSRES)"
1795 CLIENTRES="emacsclient.res"
1796 CLIENTW="emacsclientw\$(EXEEXT)"
1797 FIRSTFILE_OBJ=firstfile.o
1800 LIBS_ECLIENT="-lcomctl32"
1801 LIB_WSOCK32="-lwsock32"
1802 NTLIB="ntlib.$ac_objext"
1803 XARGS_LIMIT="-s 10000"
1809 AC_SUBST(EMACS_MANIFEST)
1810 AC_SUBST(UPDATE_MANIFEST)
1813 AC_SUBST(W32_RES_LINK)
1814 AC_SUBST(FIRSTFILE_OBJ)
1817 AC_SUBST(LIBS_ECLIENT)
1818 AC_SUBST(LIB_WSOCK32)
1820 AC_SUBST(XARGS_LIMIT)
1822 if test "${HAVE_W32}" = "yes"; then
1827 ## $window_system is now set to the window system we will
1830 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1831 # Too many warnings for now.
1833 nw="$nw -Wsuggest-attribute=const"
1834 nw="$nw -Wsuggest-attribute=noreturn"
1835 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1837 gl_WARN_ADD([-Wno-unused-variable])
1838 gl_WARN_ADD([-Wno-unused-but-set-variable])
1839 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1847 case "${window_system}" in
1852 case "${with_x_toolkit}" in
1853 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1854 motif ) USE_X_TOOLKIT=MOTIF ;;
1856 term_header=gtkutil.h
1857 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1858 dnl USE_X_TOOLKIT is set.
1859 USE_X_TOOLKIT=none ;;
1860 gtk2 ) with_gtk2=yes
1861 term_header=gtkutil.h
1862 USE_X_TOOLKIT=none ;;
1863 gtk3 ) with_gtk3=yes
1864 term_header=gtkutil.h
1865 USE_X_TOOLKIT=none ;;
1866 no ) USE_X_TOOLKIT=none ;;
1867 dnl If user did not say whether to use a toolkit, make this decision later:
1868 dnl use the toolkit if we have gtk, or X11R5 or newer.
1869 * ) USE_X_TOOLKIT=maybe ;;
1873 term_header=nsterm.h
1876 term_header=w32term.h
1880 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1881 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1882 if test "$HAVE_XSERVER" = true ||
1883 test -n "$DISPLAY" ||
1884 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1885 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1886 were found. You should install the relevant development files for X
1887 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1888 sure you have development files for image handling, i.e.
1889 tiff, gif, jpeg, png and xpm.
1890 If you are sure you want Emacs compiled without X window support, pass
1896 ### If we're using X11, we should use the X menu package.
1899 yes ) HAVE_MENUS=yes ;;
1902 # Does the opsystem file prohibit the use of the GNU malloc?
1903 # Assume not, until told otherwise.
1907 [whether malloc is Doug Lea style],
1908 [emacs_cv_var_doug_lea_malloc],
1911 [[#include <malloc.h>
1912 static void hook (void) {}]],
1913 [[malloc_set_state (malloc_get_state ());
1914 __after_morecore_hook = hook;
1915 __malloc_initialize_hook = hook;]])],
1916 [emacs_cv_var_doug_lea_malloc=yes],
1917 [emacs_cv_var_doug_lea_malloc=no])])
1918 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1921 dnl See comments in aix4-2.h about maybe using system malloc there.
1924 ## darwin ld insists on the use of malloc routines in the System framework.
1925 darwin|sol2-10) system_malloc=yes ;;
1928 if test "${system_malloc}" = "yes"; then
1929 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1932 (The GNU allocators don't work with this system configuration.)"
1936 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1937 VMLIMIT_OBJ=vm-limit.o
1939 AC_CHECK_HEADERS([sys/vlimit.h])
1940 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1943 [[extern char data_start[]; char ch;]],
1944 [[return data_start < &ch;]])],
1945 [emacs_cv_data_start=yes],
1946 [emacs_cv_data_start=no])])
1947 if test $emacs_cv_data_start = yes; then
1948 AC_DEFINE([HAVE_DATA_START], 1,
1949 [Define to 1 if data_start is the address of the start
1950 of the main data segment.])
1953 AC_SUBST(GMALLOC_OBJ)
1954 AC_SUBST(VMLIMIT_OBJ)
1956 if test "$doug_lea_malloc" = "yes" ; then
1957 if test "$GNU_MALLOC" = yes ; then
1959 (Using Doug Lea's new malloc from the GNU C Library.)"
1961 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1962 [Define to 1 if you are using the GNU C Library.])
1964 ## Use mmap directly for allocating larger buffers.
1965 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1966 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1967 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1969 gnu*) REL_ALLOC=no ;;
1973 if test x"${REL_ALLOC}" = x; then
1974 REL_ALLOC=${GNU_MALLOC}
1977 use_mmap_for_buffers=no
1979 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1983 if test $use_mmap_for_buffers = yes; then
1984 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1988 LIBS="$LIBS_SYSTEM $LIBS"
1990 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1991 AC_CHECK_LIB(dnet, dnet_ntoa)
1992 dnl This causes -lresolv to get used in subsequent tests,
1993 dnl which causes failures on some systems such as HPUX 9.
1994 dnl AC_CHECK_LIB(resolv, gethostbyname)
1996 dnl FIXME replace main with a function we actually want from this library.
1997 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1999 dnl Check if pthreads is available.
2001 AC_CHECK_HEADERS_ONCE(pthread.h)
2002 if test "$ac_cv_header_pthread_h"; then
2003 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2004 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2005 dnl testing for pthread_self if Emacs uses gmalloc.c.
2006 if test "$GMALLOC_OBJ" = gmalloc.o; then
2007 emacs_pthread_function=pthread_atfork
2009 emacs_pthread_function=pthread_self
2011 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
2013 if test "$HAVE_PTHREAD" = yes; then
2014 case "${canonical}" in
2016 *) LIB_PTHREAD="-lpthread"
2017 LIBS="$LIB_PTHREAD $LIBS" ;;
2019 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
2021 AC_SUBST([LIB_PTHREAD])
2023 AC_CHECK_LIB(pthreads, cma_open)
2025 ## Note: when using cpp in s/aix4.2.h, this definition depended on
2026 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
2027 ## the system file was sourced. Hence the value of LIBS_SYSTEM
2028 ## added to LIBS in configure would never contain the pthreads part,
2029 ## but the value used in Makefiles might. FIXME?
2031 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
2032 ## be harmless on older versions of X where it happens to exist.
2033 test "$opsys" = "aix4-2" && \
2034 test $ac_cv_lib_pthreads_cma_open = yes && \
2035 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
2037 dnl Check for need for bigtoc support on IBM AIX
2041 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2043 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2044 *) gdb_cv_bigtoc=-bbigtoc ;;
2047 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2048 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2053 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2054 # used for the tests that follow. We set them back to REAL_CFLAGS and
2055 # REAL_CPPFLAGS later on.
2057 REAL_CFLAGS="$CFLAGS"
2058 REAL_CPPFLAGS="$CPPFLAGS"
2060 if test "${HAVE_X11}" = "yes"; then
2061 DEFS="$C_SWITCH_X_SITE $DEFS"
2062 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2064 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2065 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2067 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2068 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2069 # but it's more convenient here to set LD_RUN_PATH since this
2070 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2071 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2072 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2076 if test "${opsys}" = "gnu-linux"; then
2077 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2078 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2079 [[XOpenDisplay ("foo");]])],
2080 [xgnu_linux_first_failure=no],
2081 [xgnu_linux_first_failure=yes])
2082 if test "${xgnu_linux_first_failure}" = "yes"; then
2083 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2084 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2085 OLD_CPPFLAGS="$CPPFLAGS"
2087 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2088 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2089 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2090 LIBS="$LIBS -b i486-linuxaout"
2091 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2092 [[XOpenDisplay ("foo");]])],
2093 [xgnu_linux_second_failure=no],
2094 [xgnu_linux_second_failure=yes])
2095 if test "${xgnu_linux_second_failure}" = "yes"; then
2096 # If we get the same failure with -b, there is no use adding -b.
2097 # So take it out. This plays safe.
2098 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2099 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2100 CPPFLAGS="$OLD_CPPFLAGS"
2111 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2112 # header files included from there.
2113 AC_MSG_CHECKING(for Xkb)
2114 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2115 #include <X11/XKBlib.h>]],
2116 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2117 emacs_xkb=yes, emacs_xkb=no)
2118 AC_MSG_RESULT($emacs_xkb)
2119 if test $emacs_xkb = yes; then
2120 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2123 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2124 XScreenNumberOfScreen)
2127 if test "${window_system}" = "x11"; then
2128 AC_MSG_CHECKING(X11 version 6)
2129 AC_CACHE_VAL(emacs_cv_x11_version_6,
2130 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2131 [[#if XlibSpecificationRelease < 6
2134 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2135 if test $emacs_cv_x11_version_6 = yes; then
2136 AC_MSG_RESULT(6 or newer)
2137 AC_DEFINE(HAVE_X11R6, 1,
2138 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2139 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2140 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2144 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2145 [Define if you have usable X11R6-style XIM support.])
2149 AC_MSG_RESULT(before 6)
2154 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2156 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2157 if test "${with_rsvg}" != "no"; then
2158 RSVG_REQUIRED=2.11.0
2159 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2161 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2162 AC_SUBST(RSVG_CFLAGS)
2165 if test $HAVE_RSVG = yes; then
2166 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2167 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2168 LIBS="$RSVG_LIBS $LIBS"
2174 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2175 if test "${with_imagemagick}" != "no"; then
2176 ## 6.2.8 is the earliest version known to work, but earlier versions
2177 ## might work - let us know if you find one.
2178 ## 6.0.7 does not work. See bug#7955.
2179 ## 6.8.2 makes Emacs crash; see Bug#13867.
2180 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2181 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2182 AC_SUBST(IMAGEMAGICK_CFLAGS)
2183 AC_SUBST(IMAGEMAGICK_LIBS)
2185 if test $HAVE_IMAGEMAGICK = yes; then
2186 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2187 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2188 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2189 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2197 gtk_term_header=$term_header
2200 if test "${opsys}" != "mingw32"; then
2201 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2204 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2206 dnl Checks for libraries.
2207 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2208 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2209 AC_MSG_ERROR($GTK_PKG_ERRORS)
2211 if test "$pkg_check_gtk" = "yes"; then
2212 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2213 GTK_OBJ=emacsgtkfixed.o
2214 gtk_term_header=gtkutil.h
2215 USE_GTK_TOOLKIT="GTK3"
2216 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2217 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2218 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2222 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2226 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2229 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2231 dnl Checks for libraries.
2232 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2233 if test "$pkg_check_gtk" = "no" &&
2234 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2236 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2238 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2242 if test x"$pkg_check_gtk" = xyes; then
2244 AC_SUBST(GTK_CFLAGS)
2246 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2247 CFLAGS="$CFLAGS $GTK_CFLAGS"
2248 LIBS="$GTK_LIBS $LIBS"
2249 dnl Try to compile a simple GTK program.
2250 AC_MSG_CHECKING([whether GTK compiles])
2254 [[/* Check the Gtk and Glib APIs. */
2255 #include <gtk/gtk.h>
2256 #include <glib-object.h>
2258 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2262 GtkSettings *gs = 0;
2263 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2264 strict C prohibits this. Use gtk_main_iteration to test that the
2265 libraries are there. */
2266 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2267 0, 0, 0, G_CALLBACK (callback), 0))
2268 gtk_main_iteration ();
2271 AC_MSG_RESULT([$GTK_COMPILES])
2272 if test "${GTK_COMPILES}" != "yes"; then
2274 if test "$USE_X_TOOLKIT" != "maybe"; then
2275 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2279 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2280 GTK_OBJ="gtkutil.o $GTK_OBJ"
2281 term_header=$gtk_term_header
2283 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2286 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2287 closing open displays. This is no problem if you just use
2288 one display, but if you use more than one and close one of them
2298 if test "${HAVE_GTK}" = "yes"; then
2300 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2301 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2302 if test "$with_toolkit_scroll_bars" != no; then
2303 with_toolkit_scroll_bars=yes
2306 dnl Check if we have the old file selection dialog declared and
2307 dnl in the link library. In 2.x it may be in the library,
2308 dnl but not declared if deprecated featured has been selected out.
2309 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2310 HAVE_GTK_FILE_SELECTION=no
2311 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2312 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2313 #include <gtk/gtk.h>])
2314 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2315 AC_CHECK_FUNCS(gtk_file_selection_new)
2318 dnl Same as above for gtk_handle_box.
2319 HAVE_GTK_HANDLE_BOX=no
2320 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2321 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2322 #include <gtk/gtk.h>])
2323 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2324 AC_CHECK_FUNCS(gtk_handle_box_new)
2327 dnl Same as above for gtk_tearoff_menu_item.
2328 HAVE_GTK_TEAROFF_MENU_ITEM=no
2329 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2330 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2331 #include <gtk/gtk.h>])
2332 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2333 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2336 dnl Check for functions introduced in 2.14 and later.
2337 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2338 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2339 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2340 gtk_orientable_set_orientation \
2341 gtk_window_set_has_resize_grip)
2343 term_header=gtkutil.h
2346 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2347 dnl other platforms.
2350 if test "${with_dbus}" = "yes"; then
2351 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2352 if test "$HAVE_DBUS" = yes; then
2353 LIBS="$LIBS $DBUS_LIBS"
2354 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2355 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2356 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2358 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2359 dbus_type_is_valid \
2360 dbus_validate_bus_name \
2361 dbus_validate_path \
2362 dbus_validate_interface \
2363 dbus_validate_member)
2369 dnl GSettings has been tested under GNU/Linux only.
2371 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2372 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2373 if test "$HAVE_GSETTINGS" = "yes"; then
2374 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2375 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2376 SETTINGS_LIBS="$GSETTINGS_LIBS"
2380 dnl GConf has been tested under GNU/Linux only.
2381 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2383 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2384 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2385 if test "$HAVE_GCONF" = yes; then
2386 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2387 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2388 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2389 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2393 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2394 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2395 if test "$HAVE_GOBJECT" = "yes"; then
2396 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2397 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2399 SAVE_CFLAGS="$CFLAGS"
2401 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2402 LIBS="$SETTINGS_LIBS $LIBS"
2403 CFLAGS="$SAVE_CFLAGS"
2406 AC_SUBST(SETTINGS_CFLAGS)
2407 AC_SUBST(SETTINGS_LIBS)
2410 dnl SELinux is available for GNU/Linux only.
2413 if test "${with_selinux}" = "yes"; then
2414 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2415 if test "$HAVE_LIBSELINUX" = yes; then
2416 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2417 LIBSELINUX_LIBS=-lselinux
2420 AC_SUBST(LIBSELINUX_LIBS)
2423 if test "${with_gnutls}" = "yes" ; then
2424 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2425 if test "${HAVE_GNUTLS}" = "yes"; then
2426 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2429 # Windows loads GnuTLS dynamically
2430 if test "${opsys}" = "mingw32"; then
2433 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2434 LIBS="$LIBGNUTLS_LIBS $LIBS"
2438 AC_SUBST(LIBGNUTLS_LIBS)
2439 AC_SUBST(LIBGNUTLS_CFLAGS)
2444 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2445 dnl a particular library. This doesn't make much sense?
2446 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2447 with_file_notification=no
2450 dnl MS Windows native file monitor is available for mingw32 only.
2451 case $with_file_notification,$opsys in
2452 w32,* | yes,mingw32)
2453 AC_CHECK_HEADER(windows.h)
2454 if test "$ac_cv_header_windows_h" = yes ; then
2455 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2456 NOTIFY_OBJ=w32notify.o
2457 NOTIFY_SUMMARY="yes (w32)"
2461 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2462 dnl has been added in glib 2.24. It has been tested under
2463 dnl GNU/Linux only. We take precedence over inotify, but this makes
2464 dnl only sense when glib has been compiled with inotify support. How
2466 case $with_file_notification,$NOTIFY_OBJ in
2468 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2469 if test "$HAVE_GFILENOTIFY" = "yes"; then
2470 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2471 NOTIFY_OBJ=gfilenotify.o
2472 NOTIFY_SUMMARY="yes -lgio (gfile)"
2476 dnl inotify is only available on GNU/Linux.
2477 case $with_file_notification,$NOTIFY_OBJ in
2479 AC_CHECK_HEADER(sys/inotify.h)
2480 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2481 AC_CHECK_FUNC(inotify_init1)
2482 if test "$ac_cv_func_inotify_init1" = yes; then
2483 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2484 NOTIFY_OBJ=inotify.o
2485 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2490 case $with_file_notification,$NOTIFY_OBJ in
2491 yes,* | no,* | *,?*) ;;
2492 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2495 if test -n "$NOTIFY_OBJ"; then
2496 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2498 AC_SUBST(NOTIFY_OBJ)
2499 AC_SUBST(GFILENOTIFY_CFLAGS)
2500 AC_SUBST(GFILENOTIFY_LIBS)
2502 dnl Do not put whitespace before the #include statements below.
2503 dnl Older compilers (eg sunos4 cc) choke on it.
2506 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2507 if test "$with_xaw3d" != no; then
2508 AC_CACHE_VAL(emacs_cv_xaw3d,
2509 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2510 #include <X11/Intrinsic.h>
2511 #include <X11/Xaw3d/Simple.h>]],
2513 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2514 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2515 emacs_cv_xaw3d=no)])
2519 if test $emacs_cv_xaw3d = yes; then
2520 AC_MSG_CHECKING(for xaw3d)
2521 AC_MSG_RESULT([yes; using Lucid toolkit])
2525 AC_DEFINE(HAVE_XAW3D, 1,
2526 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2528 AC_MSG_CHECKING(for xaw3d)
2530 AC_MSG_CHECKING(for libXaw)
2531 AC_CACHE_VAL(emacs_cv_xaw,
2532 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2533 #include <X11/Intrinsic.h>
2534 #include <X11/Xaw/Simple.h>]],
2538 if test $emacs_cv_xaw = yes; then
2539 AC_MSG_RESULT([yes; using Lucid toolkit])
2542 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2543 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2545 AC_MSG_ERROR([No X toolkit could be found.
2546 If you are sure you want Emacs compiled without an X toolkit, pass
2548 to configure. Otherwise, install the development libraries for the toolkit
2549 that you want to use (e.g. Gtk+) and re-run configure.])
2554 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2557 if test "${USE_X_TOOLKIT}" != "none"; then
2558 AC_MSG_CHECKING(X11 toolkit version)
2559 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2560 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2561 [[#if XtSpecificationRelease < 6
2564 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2565 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2566 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2567 AC_MSG_RESULT(6 or newer)
2568 AC_DEFINE(HAVE_X11XTR6, 1,
2569 [Define to 1 if you have the X11R6 or newer version of Xt.])
2570 LIBXTR6="-lSM -lICE"
2572 ## Use libw.a along with X11R6 Xt.
2573 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2576 AC_MSG_RESULT(before 6)
2579 dnl If using toolkit, check whether libXmu.a exists.
2580 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2582 if test x$HAVE_X11XTR6 = xyes; then
2583 LIBS="-lXt -lSM -lICE $LIBS"
2587 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2588 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2589 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2593 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2594 dnl Why not just test for libxmu in the normal way?
2597 ## These systems don't supply Xmu.
2599 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2607 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2608 if test "${HAVE_X11}" = "yes"; then
2609 if test "${USE_X_TOOLKIT}" != "none"; then
2610 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2615 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2616 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2617 if test -d /usr/include/openmotif; then
2618 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2619 emacs_cv_openmotif=yes
2620 case "$canonical" in
2621 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2622 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2625 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2628 emacs_cv_openmotif=no
2630 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2631 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2632 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2635 Motif version prior to 2.1.
2637 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2638 if test $emacs_cv_motif_version_2_1 = yes; then
2639 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2640 if test x$emacs_cv_openmotif = xyes; then
2641 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2644 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2645 # We put this in CFLAGS temporarily to precede other -I options
2646 # that might be in CFLAGS temporarily.
2647 # We put this in CPPFLAGS where it precedes the other -I options.
2648 OLD_CPPFLAGS=$CPPFLAGS
2650 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2651 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2652 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2654 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2655 if test $emacs_cv_lesstif = yes; then
2656 # Make sure this -I option remains in CPPFLAGS after it is set
2657 # back to REAL_CPPFLAGS.
2658 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2659 # have those other -I options anyway. Ultimately, having this
2660 # directory ultimately in CPPFLAGS will be enough.
2661 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2662 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2665 CPPFLAGS=$OLD_CPPFLAGS
2668 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2669 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2672 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2673 dnl using Motif or Xaw3d is available, and unless
2674 dnl --with-toolkit-scroll-bars=no was specified.
2676 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2677 [Define to 1 if we should use toolkit scroll bars.])dnl
2678 USE_TOOLKIT_SCROLL_BARS=no
2679 if test "${with_toolkit_scroll_bars}" != "no"; then
2680 if test "${USE_X_TOOLKIT}" != "none"; then
2681 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2682 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2684 USE_TOOLKIT_SCROLL_BARS=yes
2685 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2686 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2687 USE_TOOLKIT_SCROLL_BARS=yes
2689 elif test "${HAVE_GTK}" = "yes"; then
2690 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2691 USE_TOOLKIT_SCROLL_BARS=yes
2692 elif test "${HAVE_NS}" = "yes"; then
2693 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2694 USE_TOOLKIT_SCROLL_BARS=yes
2695 elif test "${HAVE_W32}" = "yes"; then
2696 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2697 USE_TOOLKIT_SCROLL_BARS=yes
2701 dnl See if XIM is available.
2702 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2703 #include <X11/Xlib.h>
2704 #include <X11/Xresource.h>]],
2705 [[XIMProc callback;]])],
2707 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2710 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2712 if test "${with_xim}" != "no"; then
2713 AC_DEFINE(USE_XIM, 1,
2714 [Define to 1 if we should use XIM, if it is available.])
2718 if test "${HAVE_XIM}" != "no"; then
2720 if test "$GCC" = yes; then
2721 CFLAGS="$CFLAGS --pedantic-errors"
2723 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2724 #include <X11/Xlib.h>
2725 #include <X11/Xresource.h>]],
2731 XPointer *client_data;
2733 /* If we're not using GCC, it's probably not XFree86, and this is
2734 probably right, but we can't use something like --pedantic-errors. */
2735 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2736 char*, XIMProc, XPointer*);
2738 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2740 [emacs_cv_arg6_star=yes])
2741 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2742 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2743 either XPointer or XPointer*.])dnl
2744 if test "$emacs_cv_arg6_star" = yes; then
2745 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2747 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2752 ### Start of font-backend (under any platform) section.
2753 # (nothing here yet -- this is a placeholder)
2754 ### End of font-backend (under any platform) section.
2756 ### Start of font-backend (under X11) section.
2757 if test "${HAVE_X11}" = "yes"; then
2758 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2760 ## Use -lXft if available, unless `--with-xft=no'.
2762 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2765 if test "x${with_xft}" != "xno"; then
2767 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2768 ## Because xftfont.c uses XRenderQueryExtension, we also
2769 ## need to link to -lXrender.
2771 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2772 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2773 OLD_CPPFLAGS="$CPPFLAGS"
2774 OLD_CFLAGS="$CFLAGS"
2776 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2777 CFLAGS="$CFLAGS $XFT_CFLAGS"
2778 XFT_LIBS="-lXrender $XFT_LIBS"
2779 LIBS="$XFT_LIBS $LIBS"
2780 AC_CHECK_HEADER(X11/Xft/Xft.h,
2781 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2782 [[#include <X11/X.h>]])
2784 if test "${HAVE_XFT}" = "yes"; then
2785 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2787 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2789 CPPFLAGS="$OLD_CPPFLAGS"
2790 CFLAGS="$OLD_CFLAGS"
2792 fi # "${HAVE_XFT}" = "yes"
2793 fi # "$HAVE_XFT" != no
2794 fi # "x${with_xft}" != "xno"
2796 ## We used to allow building with FreeType and without Xft.
2797 ## However, the ftx font backend driver is not in good shape.
2798 if test "$HAVE_XFT" != "yes"; then
2799 dnl For the "Does Emacs use" message at the end.
2803 dnl Strict linkers fail with
2804 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2805 dnl if -lfreetype is not specified.
2806 dnl The following is needed to set FREETYPE_LIBS.
2807 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2810 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2814 if test "${HAVE_FREETYPE}" = "yes"; then
2815 AC_DEFINE(HAVE_FREETYPE, 1,
2816 [Define to 1 if using the freetype and fontconfig libraries.])
2817 if test "${with_libotf}" != "no"; then
2818 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2820 if test "$HAVE_LIBOTF" = "yes"; then
2821 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2822 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2823 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2824 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2825 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2826 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2827 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2831 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2832 dnl Does the new font backend require it, or can it work without it?
2836 if test "${HAVE_LIBOTF}" = yes; then
2837 if test "${with_m17n_flt}" != "no"; then
2838 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2839 if test "$HAVE_M17N_FLT" = "yes"; then
2840 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2851 ### End of font-backend (under X11) section.
2853 AC_SUBST(FREETYPE_CFLAGS)
2854 AC_SUBST(FREETYPE_LIBS)
2855 AC_SUBST(FONTCONFIG_CFLAGS)
2856 AC_SUBST(FONTCONFIG_LIBS)
2857 AC_SUBST(LIBOTF_CFLAGS)
2858 AC_SUBST(LIBOTF_LIBS)
2859 AC_SUBST(M17N_FLT_CFLAGS)
2860 AC_SUBST(M17N_FLT_LIBS)
2862 ### Use -lXpm if available, unless `--with-xpm=no'.
2863 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2866 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2867 if test "${with_xpm}" != "no"; then
2868 SAVE_CPPFLAGS="$CPPFLAGS"
2869 SAVE_LDFLAGS="$LDFLAGS"
2870 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2871 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2872 AC_CHECK_HEADER(X11/xpm.h,
2873 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2874 if test "${HAVE_XPM}" = "yes"; then
2875 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2876 AC_EGREP_CPP(no_return_alloc_pixels,
2877 [#include "X11/xpm.h"
2878 #ifndef XpmReturnAllocPixels
2879 no_return_alloc_pixels
2881 ], HAVE_XPM=no, HAVE_XPM=yes)
2883 if test "${HAVE_XPM}" = "yes"; then
2884 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2888 CPPFLAGS="$SAVE_CPPFLAGS"
2889 LDFLAGS="$SAVE_LDFLAGS"
2894 if test "${HAVE_XPM}" = "yes"; then
2895 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2900 if test "${HAVE_X11}" = "yes"; then
2901 if test "${with_xpm}" != "no"; then
2902 AC_CHECK_HEADER(X11/xpm.h,
2903 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2904 if test "${HAVE_XPM}" = "yes"; then
2905 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2906 AC_EGREP_CPP(no_return_alloc_pixels,
2907 [#include "X11/xpm.h"
2908 #ifndef XpmReturnAllocPixels
2909 no_return_alloc_pixels
2911 ], HAVE_XPM=no, HAVE_XPM=yes)
2913 if test "${HAVE_XPM}" = "yes"; then
2921 if test "${HAVE_XPM}" = "yes"; then
2922 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2927 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2928 ### slightly different requirements wrt image libraries (it doesn't
2929 ### use -lXpm because it loads the xpm shared library dynamically at
2931 if test "${opsys}" = "mingw32"; then
2932 if test "${with_xpm}" != "no"; then
2933 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2937 if test "${HAVE_XPM}" = "yes"; then
2938 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2944 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2945 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2948 if test "${opsys}" = "mingw32"; then
2949 if test "${with_jpeg}" != "no"; then
2950 dnl Checking for jpeglib.h can lose because of a redefinition of
2952 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2954 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2955 if test "${HAVE_JPEG}" = "yes"; then
2956 AC_DEFINE(HAVE_JPEG)
2957 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2958 [#include <jpeglib.h>
2959 version=JPEG_LIB_VERSION
2961 [AC_DEFINE(HAVE_JPEG)],
2962 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2965 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2966 if test "${with_jpeg}" != "no"; then
2967 dnl Checking for jpeglib.h can lose because of a redefinition of
2969 AC_CHECK_HEADER(jerror.h,
2970 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2973 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2974 if test "${HAVE_JPEG}" = "yes"; then
2975 AC_DEFINE(HAVE_JPEG)
2976 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2977 [#include <jpeglib.h>
2978 version=JPEG_LIB_VERSION
2980 [AC_DEFINE(HAVE_JPEG)],
2981 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2984 if test "${HAVE_JPEG}" = "yes"; then
2990 ### Use -lpng if available, unless `--with-png=no'.
2991 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2994 if test "${opsys}" = "mingw32"; then
2995 if test "${with_png}" != "no"; then
2996 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2998 if test "${HAVE_PNG}" = "yes"; then
2999 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
3001 AC_CHECK_DECL(png_longjmp,
3003 [AC_DEFINE(PNG_DEPSTRUCT, [],
3004 [Define to empty to suppress deprecation warnings when building
3005 with --enable-gcc-warnings and with libpng versions before 1.5,
3006 which lack png_longjmp.])],
3007 [[#ifdef HAVE_LIBPNG_PNG_H
3008 # include <libpng/png.h>
3014 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3015 if test "${with_png}" != "no"; then
3016 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3017 # in /usr/include/libpng.
3018 AC_CHECK_HEADERS(png.h libpng/png.h, break)
3019 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
3020 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
3024 if test "${HAVE_PNG}" = "yes"; then
3025 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
3026 LIBPNG="-lpng -lz -lm"
3028 AC_CHECK_DECL(png_longjmp,
3030 [AC_DEFINE(PNG_DEPSTRUCT, [],
3031 [Define to empty to suppress deprecation warnings when building
3032 with --enable-gcc-warnings and with libpng versions before 1.5,
3033 which lack png_longjmp.])],
3034 [[#ifdef HAVE_LIBPNG_PNG_H
3035 # include <libpng/png.h>
3046 if test "${with_zlib}" != "no"; then
3048 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3050 case $ac_cv_search_inflateEnd in
3051 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3054 if test "${HAVE_ZLIB}" = "yes"; then
3055 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3056 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3057 if test "${opsys}" = "mingw32"; then
3064 ### Use -ltiff if available, unless `--with-tiff=no'.
3065 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3068 if test "${opsys}" = "mingw32"; then
3069 if test "${with_tiff}" != "no"; then
3070 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3072 if test "${HAVE_TIFF}" = "yes"; then
3073 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3075 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3076 if test "${with_tiff}" != "no"; then
3077 AC_CHECK_HEADER(tiffio.h,
3079 # At least one tiff package requires the jpeg library.
3080 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3081 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3084 if test "${HAVE_TIFF}" = "yes"; then
3085 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3086 dnl FIXME -lz -lm, as per libpng?
3092 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3093 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3096 if test "${opsys}" = "mingw32"; then
3097 if test "${with_gif}" != "no"; then
3098 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3100 if test "${HAVE_GIF}" = "yes"; then
3101 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3103 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3104 || test "${HAVE_W32}" = "yes"; then
3105 AC_CHECK_HEADER(gif_lib.h,
3106 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3107 # Earlier versions can crash Emacs.
3108 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3110 if test "$HAVE_GIF" = yes; then
3112 elif test "$HAVE_GIF" = maybe; then
3113 # If gif_lib.h but no libgif, try libungif.
3114 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3115 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3118 if test "${HAVE_GIF}" = "yes"; then
3119 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3124 dnl Check for required libraries.
3125 if test "${HAVE_X11}" = "yes"; then
3128 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3129 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3130 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3131 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3132 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3133 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3134 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3135 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3136 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3137 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3139 if test "X${MISSING}" != X; then
3140 AC_MSG_ERROR([The following required libraries were not found:
3142 Maybe some development libraries/packages are missing?
3143 If you don't want to link with them give
3145 as options to configure])
3149 ### Use -lgpm if available, unless `--with-gpm=no'.
3152 if test "${with_gpm}" != "no"; then
3153 AC_CHECK_HEADER(gpm.h,
3154 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3156 if test "${HAVE_GPM}" = "yes"; then
3157 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3163 dnl Check for malloc/malloc.h on darwin
3164 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3167 ### Use NeXTstep API to implement GUI.
3168 if test "${HAVE_NS}" = "yes"; then
3169 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3170 if test "${NS_IMPL_COCOA}" = "yes"; then
3171 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3173 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3174 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3175 # See also .m.o rule in Makefile.in */
3176 # FIXME: are all these flags really needed? Document here why. */
3177 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3178 ## Extra CFLAGS applied to src/*.m files.
3179 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3181 # We also have mouse menus.
3186 if test "${HAVE_W32}" = "yes"; then
3190 ### Use session management (-lSM -lICE) if available
3193 if test "${HAVE_X11}" = "yes"; then
3194 AC_CHECK_HEADER(X11/SM/SMlib.h,
3195 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3197 if test "${HAVE_X_SM}" = "yes"; then
3198 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3202 *) LIBS="$LIBXSM $LIBS" ;;
3208 ### Use XRandr (-lXrandr) if available
3210 if test "${HAVE_X11}" = "yes"; then
3211 XRANDR_REQUIRED=1.2.2
3212 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3213 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3214 if test $HAVE_XRANDR = no; then
3215 # Test old way in case pkg-config doesn't have it (older machines).
3216 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3217 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3218 if test $HAVE_XRANDR = yes; then
3219 XRANDR_LIBS=-lXrandr
3220 AC_SUBST(XRANDR_LIBS)
3223 if test $HAVE_XRANDR = yes; then
3224 SAVE_CFLAGS="$CFLAGS"
3226 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3227 LIBS="$XRANDR_LIBS $LIBS"
3228 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3229 CFLAGS="$SAVE_CFLAGS"
3232 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3236 ### Use Xinerama (-lXinerama) if available
3238 if test "${HAVE_X11}" = "yes"; then
3239 XINERAMA_REQUIRED=1.0.2
3240 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3241 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3243 if test $HAVE_XINERAMA = no; then
3244 # Test old way in case pkg-config doesn't have it (older machines).
3245 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3246 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3247 if test $HAVE_XINERAMA = yes; then
3248 XINERAMA_LIBS=-lXinerama
3249 AC_SUBST(XINERAMA_LIBS)
3252 if test $HAVE_XINERAMA = yes; then
3253 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3258 ### Use libxml (-lxml2) if available
3259 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3261 if test "${with_xml2}" != "no"; then
3262 ### I'm not sure what the version number should be, so I just guessed.
3263 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3264 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3265 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3266 SAVE_CPPFLAGS="$CPPFLAGS"
3267 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3268 AC_CHECK_HEADER(libxml/HTMLparser.h,
3269 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3270 [#include <libxml/HTMLparser.h>])])
3271 CPPFLAGS="$SAVE_CPPFLAGS"
3272 if test "${HAVE_LIBXML2}" = "yes"; then
3273 LIBXML2_LIBS="-lxml2"
3274 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3277 if test "${HAVE_LIBXML2}" = "yes"; then
3278 if test "${opsys}" != "mingw32"; then
3279 LIBS="$LIBXML2_LIBS $LIBS"
3280 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3284 if test "${HAVE_LIBXML2}" = "yes"; then
3285 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3292 AC_SUBST(LIBXML2_LIBS)
3293 AC_SUBST(LIBXML2_CFLAGS)
3295 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3296 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3297 if test "${opsys}" = "mingw32"; then
3298 emacs_cv_netdb_declares_h_errno=yes
3300 AC_CACHE_CHECK(whether netdb declares h_errno,
3301 emacs_cv_netdb_declares_h_errno,
3302 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3303 [[return h_errno;]])],
3304 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3305 if test $emacs_cv_netdb_declares_h_errno = yes; then
3306 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3309 # sqrt and other floating-point functions such as fmod and frexp
3310 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3311 if test "${opsys}" != "mingw32"; then
3312 AC_CHECK_LIB(m, sqrt)
3315 # Check for mail-locking functions in a "mail" library. Probably this should
3316 # have the same check as for liblockfile below.
3317 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3318 if test $have_mail = yes; then
3320 LIBS="$LIBS_MAIL $LIBS"
3321 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3325 dnl Debian, at least:
3326 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3327 if test $have_lockfile = yes; then
3328 LIBS_MAIL=-llockfile
3329 LIBS="$LIBS_MAIL $LIBS"
3330 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3332 # If we have the shared liblockfile, assume we must use it for mail
3333 # locking (e.g. Debian). If we couldn't link against liblockfile
3334 # (no liblockfile.a installed), ensure that we don't need to.
3335 dnl This works for files generally, not just executables.
3336 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3337 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3338 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3339 if test $ac_cv_prog_liblockfile = yes; then
3340 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3341 This probably means that movemail could lose mail.
3342 There may be a `development' package to install containing liblockfile.])
3345 AC_CHECK_HEADERS_ONCE(maillock.h)
3348 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3349 ## interlock access to the mail spool. The alternative is a lock file named
3350 ## /usr/spool/mail/$USER.lock.
3353 aix4-2) mail_lock="lockf" ;;
3355 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3357 ## On GNU/Linux systems, both methods are used by various mail programs.
3358 ## I assume most people are using newer mailers that have heard of flock.
3359 ## Change this if you need to.
3360 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3361 ## configure gets the right answers, and that means *NOT* using flock.
3362 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3363 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3364 ## Debian maintainer hasn't provided a clean fix for Emacs.
3365 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3366 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3367 ## correct logic. -- fx
3368 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3369 ## liblockfile is a Free Software replacement for libmail, used on
3370 ## Debian systems and elsewhere. -rfr.
3373 if test $have_mail = yes || test $have_lockfile = yes; then
3374 test $ac_cv_header_maillock_h = yes && mail_lock=no
3379 mail_lock="none-needed" ;;
3383 case "$mail_lock" in
3384 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3386 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3390 *) BLESSMAIL_TARGET="need-blessmail" ;;
3392 AC_SUBST(BLESSMAIL_TARGET)
3395 AC_CHECK_FUNCS(accept4 gethostname \
3396 getrusage get_current_dir_name \
3398 select getpagesize setlocale \
3399 getrlimit setrlimit shutdown getaddrinfo \
3400 strsignal setitimer \
3401 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3402 gai_strerror getline getdelim sync \
3403 difftime posix_memalign \
3404 getpwent endpwent getgrent endgrent \
3406 cfmakeraw cfsetspeed copysign __executable_start log2)
3408 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3409 ## has a broken `rint' in some library versions including math library
3410 ## version number A.09.05.
3411 ## You can fix the math library by installing patch number PHSS_4630.
3412 ## But we can fix it more reliably for Emacs by just not using rint.
3413 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3416 *) AC_CHECK_FUNCS(random rint) ;;
3419 dnl Cannot use AC_CHECK_FUNCS
3420 AC_CACHE_CHECK([for __builtin_unwind_init],
3421 emacs_cv_func___builtin_unwind_init,
3422 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3423 emacs_cv_func___builtin_unwind_init=yes,
3424 emacs_cv_func___builtin_unwind_init=no)])
3425 if test $emacs_cv_func___builtin_unwind_init = yes; then
3426 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3427 [Define to 1 if you have the `__builtin_unwind_init' function.])
3430 AC_CHECK_HEADERS_ONCE(sys/un.h)
3435 AC_CHECK_FUNCS(grantpt)
3437 # PTY-related GNU extensions.
3438 AC_CHECK_FUNCS(getpt posix_openpt)
3440 # Check this now, so that we will NOT find the above functions in ncurses.
3441 # That is because we have not set up to link ncurses in lib-src.
3442 # It's better to believe a function is not available
3443 # than to expect to find it in ncurses.
3444 # Also we need tputs and friends to be able to build at all.
3445 AC_MSG_CHECKING([for library containing tputs])
3446 # Run a test program that contains a call to tputs, a call that is
3447 # never executed. This tests whether a pre-'main' dynamic linker
3448 # works with the library. It's too much trouble to actually call
3449 # tputs in the test program, due to portability hassles. When
3450 # cross-compiling, assume the test program will run if it links.
3451 AC_DEFUN([tputs_link_source], [
3453 [[extern void tputs (const char *, int, int (*)(int));
3454 int main (int argc, char **argv)
3457 tputs (argv[0], 0, 0);
3461 if test "${opsys}" = "mingw32"; then
3464 # Maybe curses should be tried earlier?
3465 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3466 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3468 if test -z "$tputs_library"; then
3472 LIBS_TERMCAP=-l$tputs_library
3474 LIBS="$LIBS_TERMCAP $LIBS"
3476 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3477 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3479 if test "X$msg" != Xno; then
3484 AC_MSG_RESULT([$msg])
3485 if test "X$msg" = Xno; then
3486 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3487 The following libraries were tried (in order):
3488 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3489 Please try installing whichever of these libraries is most appropriate
3490 for your system, together with its header files.
3491 For example, a libncurses-dev(el) or similar package.])
3494 ## Use termcap instead of terminfo?
3495 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3497 ## FIXME? In the cases below where we unconditionally set
3498 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3499 ## if that was found above to have tputs.
3500 ## Should we use the gnu* logic everywhere?
3502 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3503 ## The ncurses library has been moved out of the System framework in
3504 ## Mac OS X 10.2. So if configure detects it, set the command-line
3505 ## option to use it.
3506 darwin) LIBS_TERMCAP="-lncurses" ;;
3508 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3511 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3512 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3513 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3514 [[#if __FreeBSD_version < 400000
3517 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3519 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3521 if test $emacs_cv_freebsd_terminfo = yes; then
3522 LIBS_TERMCAP="-lncurses"
3525 LIBS_TERMCAP="-ltermcap"
3535 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3537 LIBS_TERMCAP="-ltermcap"
3541 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3543 ## hpux: Make sure we get select from libc rather than from libcurses
3544 ## because libcurses on HPUX 10.10 has a broken version of select.
3545 ## We used to use -lc -lcurses, but this may be cleaner.
3546 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3547 # set that way, now it uses the default). Isn't this a contradiction?
3548 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3552 TERMCAP_OBJ=tparam.o
3553 if test $TERMINFO = yes; then
3554 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3555 TERMCAP_OBJ=terminfo.o
3557 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3558 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3560 AC_SUBST(LIBS_TERMCAP)
3561 AC_SUBST(TERMCAP_OBJ)
3564 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3565 # On Darwin, res_init appears not to be useful: see bug#562 and
3566 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3569 if test $opsys != darwin; then
3571 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3572 #include <arpa/nameser.h>
3573 #include <resolv.h>]],
3574 [[return res_init();]])],
3575 have_res_init=yes, have_res_init=no)
3576 if test "$have_res_init" = no; then
3578 LIBS="$LIBS -lresolv"
3579 AC_MSG_CHECKING(for res_init with -lresolv)
3580 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3581 #include <arpa/nameser.h>
3582 #include <resolv.h>]],
3583 [[return res_init();]])],
3584 have_res_init=yes, have_res_init=no)
3585 AC_MSG_RESULT($have_res_init)
3586 if test "$have_res_init" = yes ; then
3592 if test "$have_res_init" = yes; then
3593 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3597 # Do we need the Hesiod library to provide the support routines?
3598 dnl FIXME? Should we be skipping this on Darwin too?
3600 if test "$with_hesiod" != no ; then
3601 # Don't set $LIBS here -- see comments above. FIXME which comments?
3602 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3603 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3604 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3605 if test "$resolv" = yes ; then
3610 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3611 hesiod=yes, :, $RESOLVLIB)])
3613 if test x"$hesiod" = xyes; then
3619 # Do we need libresolv (due to res_init or Hesiod)?
3620 if test "$resolv" = yes && test $opsys != darwin; then
3627 # These tell us which Kerberos-related libraries to use.
3634 if test "${with_kerberos}" != no; then
3635 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3636 if test $have_com_err = yes; then
3637 COM_ERRLIB=-lcom_err
3638 LIBS="$COM_ERRLIB $LIBS"
3640 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3641 if test $have_crypto = yes; then
3643 LIBS="$CRYPTOLIB $LIBS"
3645 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3646 if test $have_k5crypto = yes; then
3647 CRYPTOLIB=-lk5crypto
3648 LIBS="$CRYPTOLIB $LIBS"
3650 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3651 if test $have_krb5=yes; then
3653 LIBS="$KRB5LIB $LIBS"
3655 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3656 if test "${with_kerberos5}" = no; then
3657 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3658 if test $have_des425 = yes; then
3660 LIBS="$DESLIB $LIBS"
3662 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3663 if test $have_des = yes; then
3665 LIBS="$DESLIB $LIBS"
3668 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3669 if test $have_krb4 = yes; then
3671 LIBS="$KRB4LIB $LIBS"
3673 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3674 if test $have_krb = yes; then
3676 LIBS="$KRB4LIB $LIBS"
3681 if test "${with_kerberos5}" != no; then
3682 AC_CHECK_HEADERS(krb5.h,
3683 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3684 [#include <krb5.h>])])
3686 AC_CHECK_HEADERS(krb.h,,
3687 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3688 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3690 AC_CHECK_HEADERS(com_err.h)
3693 AC_SUBST(COM_ERRLIB)
3699 AC_CHECK_FUNCS_ONCE(tzset)
3700 AC_MSG_CHECKING(whether localtime caches TZ)
3701 AC_CACHE_VAL(emacs_cv_localtime_cache,
3702 [if test x$ac_cv_func_tzset = xyes; then
3703 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3704 char TZ_GMT0[] = "TZ=GMT0";
3705 char TZ_PST8[] = "TZ=PST8";
3708 time_t now = time ((time_t *) 0);
3709 int hour_GMT0, hour_unset;
3710 if (putenv (TZ_GMT0) != 0)
3712 hour_GMT0 = localtime (&now)->tm_hour;
3714 hour_unset = localtime (&now)->tm_hour;
3715 if (putenv (TZ_PST8) != 0)
3717 if (localtime (&now)->tm_hour == hour_GMT0)
3720 if (localtime (&now)->tm_hour != hour_unset)
3723 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3724 [# If we have tzset, assume the worst when cross-compiling.
3725 emacs_cv_localtime_cache=yes])
3727 # If we lack tzset, report that localtime does not cache TZ,
3728 # since we can't invalidate the cache if we don't have tzset.
3729 emacs_cv_localtime_cache=no
3731 AC_MSG_RESULT($emacs_cv_localtime_cache)
3732 if test $emacs_cv_localtime_cache = yes; then
3733 AC_DEFINE(LOCALTIME_CACHE, 1,
3734 [Define to 1 if localtime caches TZ.])
3738 AC_CHECK_FUNC(socket, , ok_so_far=no)
3739 if test $ok_so_far = yes; then
3740 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3742 if test $ok_so_far = yes; then
3743 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3745 if test $ok_so_far = yes; then
3746 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3747 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3748 [Define to 1 if you have inet sockets.])
3751 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3752 dnl This can be removed once we assume Autoconf 2.70.
3754 *-solaris2.4 | *-solaris2.4.*)
3755 dnl Disable the Autoconf-generated vfork test.
3756 : ${ac_cv_func_vfork_works=no};;
3761 AC_CHECK_FUNCS(snprintf)
3763 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3766 AC_MSG_CHECKING([whether GLib is linked in])
3767 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3770 [[g_print ("Hello world");]])],
3773 AC_MSG_RESULT([$links_glib])
3774 if test "${links_glib}" = "yes"; then
3775 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3776 if test "$HAVE_NS" = no;then
3782 dnl Adapted from Haible's version.
3783 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3784 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3785 [[char* cs = nl_langinfo(CODESET);]])],
3786 emacs_cv_langinfo_codeset=yes,
3787 emacs_cv_langinfo_codeset=no)
3789 if test $emacs_cv_langinfo_codeset = yes; then
3790 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3791 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3796 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3797 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3798 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3799 if test "$emacs_cv_c_restrict_arr" = yes; then
3800 AC_DEFINE(__restrict_arr, __restrict,
3801 [Define to compiler's equivalent of C99 restrict keyword in array
3802 declarations. Define as empty for no equivalent.])
3805 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3806 dnl how the tty code is related to POSIX and/or other versions of termios.
3807 dnl The following looks like a useful start.
3809 dnl AC_SYS_POSIX_TERMIOS
3810 dnl if test $ac_cv_sys_posix_termios = yes; then
3811 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3812 dnl and macros for terminal control.])
3813 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3816 dnl Turned on June 1996 supposing nobody will mind it.
3817 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3818 if test "${opsys}" != "mingw32"; then
3819 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3820 in the full name stands for the login id.])
3823 dnl Every platform that uses configure supports this.
3824 dnl There is a create-lockfiles option you can
3825 dnl customize if you do not want the lock files to be written.
3826 dnl So it is not clear that this #define still needs to exist.
3827 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3828 so that Emacs can tell instantly when you try to modify a file that
3829 someone else has modified in his/her Emacs.])
3831 dnl Everybody supports this, except MS.
3832 dnl Seems like the kind of thing we should be testing for, though.
3833 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3834 if test "${opsys}" != "mingw32"; then
3835 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3838 dnl Everybody supports this, except MS-DOS.
3839 dnl Seems like the kind of thing we should be testing for, though.
3840 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3841 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3842 4.2-compatible sockets.])
3844 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3846 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3847 a null file, or a data sink.])
3848 if test "${opsys}" = "mingw32"; then
3849 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3851 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3854 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3855 if test "${opsys}" = "mingw32"; then
3856 AC_DEFINE(SEPCHAR, [';'])
3858 AC_DEFINE(SEPCHAR, [':'])
3861 dnl Everybody supports this, except MS-DOS.
3862 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3864 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3867 AC_DEFINE(DIRECTORY_SEP, ['/'],
3868 [Character that separates directories in a file name.])
3870 if test "${opsys}" = "mingw32"; then
3871 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3872 [Returns true if character is a device separator.])
3874 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3875 [Returns true if character is a directory separator.])
3877 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3878 [Returns true if character is any form of separator.])
3880 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3881 [Returns true if character is a device separator.])
3883 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3884 [Returns true if character is a directory separator.])
3886 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3887 [Returns true if character is any form of separator.])
3890 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3894 dnl Unfortunately without libXmu we cannot support EditRes.
3895 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3896 AC_DEFINE(NO_EDITRES, 1)
3901 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3902 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3903 AC_DEFINE(NO_EDITRES, 1)
3909 irix6-5 | sol2* | unixware )
3910 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3911 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3912 dnl need the constant to dimension an array. So wire in the appropriate
3914 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3918 emacs_broken_SIGIO=no
3921 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3922 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3923 hpux* | irix6-5 | openbsd | sol2* | unixware )
3924 emacs_broken_SIGIO=yes
3928 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3929 dnl the way this system works, libc functions that return malloced
3930 dnl memory use the libc malloc implementation. Calling xfree or
3931 dnl xrealloc on the results of such functions results in a crash.
3933 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3934 dnl but that does not currently work on this system.
3936 dnl It is possible to completely override the malloc implementation on
3937 dnl AIX, but that involves putting the malloc functions in a shared
3938 dnl library and setting the MALLOCTYPE environment variable to point to
3939 dnl that shared library.
3941 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3942 dnl to avoid a crash just use the Emacs implementation for that function.
3944 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3945 dnl of this file, so that we do not check for get_current_dir_name
3946 dnl on AIX. But that might be fragile if something else ends
3947 dnl up testing for get_current_dir_name as a dependency.
3948 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3949 get_current_dir_name should not be used.])
3953 dnl Circumvent a bug in FreeBSD. In the following sequence of
3954 dnl writes/reads on a PTY, read(2) returns bogus data:
3956 dnl write(2) 1022 bytes
3957 dnl write(2) 954 bytes, get EAGAIN
3958 dnl read(2) 1024 bytes in process_read_output
3959 dnl read(2) 11 bytes in process_read_output
3961 dnl That is, read(2) returns more bytes than have ever been written
3962 dnl successfully. The 1033 bytes read are the 1022 bytes written
3963 dnl successfully after processing (for example with CRs added if the
3964 dnl terminal is set up that way which it is here). The same bytes will
3965 dnl be seen again in a later read(2), without the CRs.
3966 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3967 work around an issue when reading from a PTY.])
3973 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3974 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3979 darwin | dragonfly | freebsd | netbsd | openbsd )
3980 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3981 close a pty to make it a controlling terminal (it is already a
3982 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3986 dnl FIXME Surely we can test for this rather than hard-code it.
3988 netbsd | openbsd) sound_device="/dev/audio" ;;
3989 *) sound_device="/dev/dsp" ;;
3993 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3994 [Name of the default sound device.])
3997 dnl Emacs can read input using SIGIO and buffering characters itself,
3998 dnl or using CBREAK mode and making C-g cause SIGINT.
3999 dnl The choice is controlled by the variable interrupt_input.
4001 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4003 dnl Emacs uses the presence of the USABLE_SIGIO macro
4004 dnl to indicate whether or not signal-driven I/O is possible. It uses
4005 dnl INTERRUPT_INPUT to decide whether to use it by default.
4007 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4008 dnl CBREAK mode has two disadvantages
4009 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4010 dnl I hear that in system V this problem does not exist.
4011 dnl 2) Control-G causes output to be discarded.
4012 dnl I do not know whether this can be fixed in system V.
4014 dnl Another method of doing input is planned but not implemented.
4015 dnl It would have Emacs fork off a separate process
4016 dnl to read the input and send it to the true Emacs process
4019 darwin | gnu-linux | gnu-kfreebsd )
4020 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4025 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4026 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4027 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4028 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4029 dnl taking float or double parameters.
4031 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4032 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4033 file defines `NeedWidePrototypes' as `NO'.])
4038 dnl Used in process.c, this must be a loop, even if it only runs once.
4039 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4040 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4041 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4042 dnl trying suffixes 0-16.
4043 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4044 first PTY, if PTYs are supported.])
4045 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4046 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4047 end of a PTY, if non-standard.])
4048 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4049 end of a PTY, if non-standard.])
4053 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4054 dnl You allocate a pty by opening /dev/ptc to get the master side.
4055 dnl To get the name of the slave side, you just ttyname() the master side.
4056 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4057 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4061 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4062 dnl multi-line AC_DEFINEs are hard. :(
4063 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)])
4064 AC_DEFINE(PTY_NAME_SPRINTF, [])
4065 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4068 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4070 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4071 dnl Not used, because PTY_ITERATION is defined.
4072 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4073 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4074 dnl But we don't have to block SIGCHLD because it is blocked in the
4075 dnl implementation of grantpt.
4076 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4077 AC_DEFINE(PTY_NAME_SPRINTF, [])
4078 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4082 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4085 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4087 if test "x$ac_cv_func_grantpt" = xyes; then
4088 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4089 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4090 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4091 dnl to prevent sigchld_handler from intercepting the child's death.
4092 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); }])
4093 dnl if HAVE_POSIX_OPENPT
4094 if test "x$ac_cv_func_posix_openpt" = xyes; then
4095 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4096 AC_DEFINE(PTY_NAME_SPRINTF, [])
4098 elif test "x$ac_cv_func_getpt" = xyes; then
4099 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4100 AC_DEFINE(PTY_NAME_SPRINTF, [])
4102 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4105 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4110 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4111 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4112 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4116 dnl It looks like this cannot be right, because it is not a loop.
4117 dnl However, process.c actually does this:
4123 dnl which presumably makes it OK, since irix == sgi (?).
4124 dnl FIXME it seems like this special treatment is unnecessary?
4125 dnl Why can't irix use a single-trip loop like eg cygwin?
4126 AC_DEFINE(PTY_ITERATION, [])
4127 dnl Not used, because PTY_ITERATION is defined.
4128 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4129 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); }])
4130 dnl No need to get the pty name at all.
4131 AC_DEFINE(PTY_NAME_SPRINTF, [])
4132 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4133 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4137 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4138 dnl from intercepting that death. If any child but grantpt's should die
4139 dnl within, it should be caught after sigrelse(2).
4140 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); }])
4144 dnl Comments are as per sol2*.
4145 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); }])
4152 dnl This change means that we don't loop through allocate_pty too
4153 dnl many times in the (rare) event of a failure.
4154 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4155 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4156 dnl Push various streams modules onto a PTY channel. Used in process.c.
4157 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.])
4162 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4163 "typing" a signal character on the pty.])
4166 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4167 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4168 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4169 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4172 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4173 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4174 gnu-linux | gnu-kfreebsd )
4176 AC_MSG_CHECKING([for signals via characters])
4177 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4178 #include <linux/version.h>
4179 #if LINUX_VERSION_CODE < 0x20400
4180 # error "Linux version too old"
4182 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4184 AC_MSG_RESULT([$emacs_signals_via_chars])
4185 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4190 dnl Used in lisp.h, emacs.c, vm-limit.c
4191 dnl NEWS.18 describes this as "a number which contains
4192 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4193 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4194 stored in a Lisp_Object.])
4195 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4199 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4200 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4203 dnl The data segment on this machine always starts at address 0x40000000.
4204 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4207 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4212 AH_TEMPLATE(TAB3, [Undocumented.])
4215 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4217 gnu | dragonfly | freebsd | netbsd | openbsd )
4218 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4219 AC_DEFINE(TAB3, OXTABS)
4222 gnu-linux | gnu-kfreebsd )
4223 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4227 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4228 [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)],
4229 [Mark a secondary stack, like the register stack on the ia64.]), [])
4233 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4234 run_time_remap; for HPUX.])
4239 dnl This won't be used automatically yet. We also need to know, at least,
4240 dnl that the stack is continuous.
4241 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4242 registers relevant for conservative garbage collection in the jmp_buf.])
4246 dnl Not all the architectures are tested, but there are Debian packages
4247 dnl for SCM and/or Guile on them, so the technique must work. See also
4248 dnl comments in alloc.c concerning setjmp and gcc.
4249 dnl Fixme: it's probably safe to just use the GCC conditional below.
4250 gnu-linux | gnu-kfreebsd )
4251 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4252 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4253 || defined __alpha__ || defined __mips__ || defined __s390__ \
4254 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4255 || defined __ia64__ || defined __sh__
4258 # error "setjmp not known to work on this arch"
4260 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4265 if test x$GCC = xyes; then
4266 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4267 AC_DEFINE(GC_SETJMP_WORKS, 1)
4270 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4271 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4272 AC_DEFINE(GC_SETJMP_WORKS, 1)
4277 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4278 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4281 [[#include <setjmp.h>
4283 # define _longjmp longjmp
4288 _longjmp (j, 1);]])],
4289 [emacs_cv_func__setjmp=yes],
4290 [emacs_cv_func__setjmp=no])])
4291 if test $emacs_cv_func__setjmp = yes; then
4292 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4294 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4297 [[#include <setjmp.h>
4300 if (! sigsetjmp (j, 1))
4301 siglongjmp (j, 1);]])],
4302 [emacs_cv_func_sigsetjmp=yes],
4303 [emacs_cv_func_sigsetjmp=no])])
4304 if test $emacs_cv_func_sigsetjmp = yes; then
4305 AC_DEFINE([HAVE_SIGSETJMP], 1,
4306 [Define to 1 if sigsetjmp and siglongjmp work.
4307 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4313 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4314 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4315 dnl and this is all we need.
4316 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4323 dnl Used in xfaces.c.
4324 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4325 some systems, where it requires time.h.])
4330 dnl Define symbols to identify the version of Unix this is.
4331 dnl Define all the symbols that apply correctly.
4332 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4333 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4334 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4335 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4340 dnl This symbol should be defined on AIX Version 3 ???????
4341 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4343 # error "_AIX not defined"
4345 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4349 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4353 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4354 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4355 dnl distinguish OS X from pure Darwin.
4356 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4359 gnu-linux | gnu-kfreebsd )
4361 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4366 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4371 AC_DEFINE(USG5_4, [])
4372 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4376 AC_DEFINE(DOS_NT, [])
4377 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4378 if test "x$ac_enable_checking" != "x" ; then
4379 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4385 AC_DEFINE(USG5_4, [])
4386 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4391 AC_DEFINE(USG5_4, [])
4395 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4398 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4399 emacs_cv_usable_FIONREAD=no
4403 emacs_cv_usable_FIONREAD=yes
4408 [AC_LANG_PROGRAM([[#include <sys/types.h>
4409 #include <sys/ioctl.h>
4411 # include <sys/filio.h>
4414 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4415 [emacs_cv_usable_FIONREAD=yes],
4416 [emacs_cv_usable_FIONREAD=no])
4419 if test $emacs_cv_usable_FIONREAD = yes; then
4420 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4422 if test $emacs_broken_SIGIO = no; then
4423 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4425 [AC_LANG_PROGRAM([[#include <fcntl.h>
4428 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4429 [emacs_cv_usable_SIGIO=yes],
4430 [emacs_cv_usable_SIGIO=no])],
4431 [emacs_cv_usable_SIGIO=yes],
4432 [emacs_cv_usable_SIGIO=no])
4433 if test $emacs_cv_usable_SIGIO = yes; then
4434 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4441 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4442 dnl and on Cygwin prior to version 1.7.24 that becomes the
4443 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4444 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4445 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4446 dnl needed starting with cygwin-1.7.24, and it is no longer
4447 dnl effective starting with glib-2.36. */
4449 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4450 G_SLICE environment variable to "always-malloc" at startup.])
4454 dnl It works to open the pty's tty in the parent (Emacs), then
4455 dnl close and reopen it in the child.
4456 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4457 works to open a pty's tty in the parent process, then close and
4458 reopen it in the child.])
4462 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4463 use VSUSP instead of VSWTCH.])
4467 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4472 # Set up the CFLAGS for real compilation, so we can substitute it.
4473 CFLAGS="$REAL_CFLAGS"
4474 CPPFLAGS="$REAL_CPPFLAGS"
4476 ## Hack to detect a buggy GCC version.
4477 if test "x$GCC" = xyes \
4478 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4479 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4480 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4481 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4484 version=$PACKAGE_VERSION
4486 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4487 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4488 [Short copyright string for this version of Emacs.])
4491 ### Specify what sort of things we'll be editing into Makefile and config.h.
4492 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4494 AC_SUBST(configuration)
4499 AC_SUBST(exec_prefix)
4502 AC_SUBST(sharedstatedir)
4503 AC_SUBST(libexecdir)
4508 AC_SUBST(standardlisppath)
4509 AC_SUBST(locallisppath)
4511 AC_SUBST(x_default_search_path)
4513 AC_SUBST(archlibdir)
4518 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4519 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4520 ## end of LIBX_BASE, but nothing ever set it.
4521 AC_SUBST(LD_SWITCH_X_SITE)
4522 AC_SUBST(C_SWITCH_X_SITE)
4523 AC_SUBST(GNUSTEP_CFLAGS)
4525 ## Used in lwlib/Makefile.in.
4526 AC_SUBST(X_TOOLKIT_TYPE)
4528 AC_SUBST(ns_appbindir)
4529 AC_SUBST(ns_appresdir)
4531 AC_SUBST(GNU_OBJC_CFLAGS)
4532 AC_SUBST(OTHER_FILES)
4534 if test -n "${term_header}"; then
4535 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4536 [Define to the header for the built-in window system.])
4539 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4540 [Define to the canonical Emacs configuration name.])
4541 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4542 [Define to the options passed to configure.])
4543 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4544 define this to include extra configuration information.])
4548 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4555 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4556 AC_DEFINE(HAVE_X_WINDOWS, 1,
4557 [Define to 1 if you want to use the X window system.])
4559 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4561 if test "$HAVE_XFT" = "yes"; then
4562 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4563 elif test "$HAVE_FREETYPE" = "yes"; then
4564 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4574 if test "${USE_X_TOOLKIT}" != "none" ; then
4576 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4577 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4578 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4579 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4580 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4584 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4585 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4589 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4590 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4591 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4595 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4596 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4599 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4602 AC_SUBST(WIDGET_OBJ)
4605 case "$USE_X_TOOLKIT" in
4606 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4607 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4608 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4610 AC_SUBST(TOOLKIT_LIBW)
4612 if test "${opsys}" != "mingw32"; then
4613 if test "$USE_X_TOOLKIT" = "none"; then
4614 LIBXT_OTHER="\$(LIBXSM)"
4615 OLDXMENU_TARGET="really-oldXMenu"
4617 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4618 OLDXMENU_TARGET="really-lwlib"
4621 AC_SUBST(LIBXT_OTHER)
4623 ## The X Menu stuff is present in the X10 distribution, but missing
4624 ## from X11. If we have X10, just use the installed library;
4625 ## otherwise, use our own copy.
4626 if test "${HAVE_X11}" = "yes" ; then
4627 AC_DEFINE(HAVE_X11, 1,
4628 [Define to 1 if you want to use version 11 of X windows.
4629 Otherwise, Emacs expects to use version 10.])
4631 if test "$USE_X_TOOLKIT" = "none"; then
4632 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4634 OLDXMENU="\${lwlibdir}/liblw.a"
4636 LIBXMENU="\$(OLDXMENU)"
4637 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4638 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4640 ## For a syntactically valid Makefile; not actually used for anything.
4641 ## See comments in src/Makefile.in.
4643 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4644 if test "${HAVE_X_WINDOWS}" = "yes"; then
4653 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4660 AC_SUBST(OLDXMENU_TARGET)
4663 AC_SUBST(LIBX_OTHER)
4664 AC_SUBST(OLDXMENU_DEPS)
4666 if test "${HAVE_MENUS}" = "yes" ; then
4667 AC_DEFINE(HAVE_MENUS, 1,
4668 [Define to 1 if you have mouse menus.
4669 (This is automatic if you use X, but the option to specify it remains.)
4670 It is also defined with other window systems that support xmenu.c.])
4673 if test "${GNU_MALLOC}" = "yes" ; then
4674 AC_DEFINE(GNU_MALLOC, 1,
4675 [Define to 1 if you want to use the GNU memory allocator.])
4679 if test "${REL_ALLOC}" = "yes" ; then
4680 AC_DEFINE(REL_ALLOC, 1,
4681 [Define REL_ALLOC if you want to use the relocating allocator for
4684 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4686 AC_SUBST(RALLOC_OBJ)
4688 if test "$opsys" = "cygwin"; then
4689 CYGWIN_OBJ="sheap.o cygw32.o"
4690 ## Cygwin differs because of its unexec().
4692 POST_ALLOC_OBJ=lastfile.o
4693 elif test "$opsys" = "mingw32"; then
4696 POST_ALLOC_OBJ=lastfile.o
4699 PRE_ALLOC_OBJ=lastfile.o
4702 AC_SUBST(CYGWIN_OBJ)
4703 AC_SUBST(PRE_ALLOC_OBJ)
4704 AC_SUBST(POST_ALLOC_OBJ)
4706 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4707 dnl verbatim defined above. The tricky name is apropos, as this hack
4708 dnl makes Fortify go sour!
4709 AH_VERBATIM([FORTIFY_SOUR],
4710 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4711 The workaround disables some useful run-time checking, so it
4712 should be conditional to the platforms with the performance bug.
4713 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4714 #if defined __APPLE__ && defined __GNUC__
4715 # ifndef _DONT_USE_CTYPE_INLINE_
4716 # define _DONT_USE_CTYPE_INLINE_
4718 # ifndef _FORTIFY_SOURCE
4719 # define _FORTIFY_SOURCE 0
4724 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4725 # it temporarily reverts them to their pre-pkg-config values,
4726 # because gnulib needs to work with both src (which uses the
4727 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4728 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4729 # and it therefore needs to run in an environment where LIBS does not
4730 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4731 # for some package unrelated to lib-src.
4734 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4735 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4736 gl_ASSERT_NO_GNULIB_POSIXCHECK
4737 gl_ASSERT_NO_GNULIB_TESTS
4742 if test "${opsys}" = "mingw32"; then
4743 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4744 # Remove unneeded switches from the value of CC that goes to Makefiles
4745 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4749 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4752 ## The -headerpad option tells ld (see man page) to leave room at the
4753 ## end of the header for adding load commands. Needed for dumping.
4754 ## 0x690 is the total size of 30 segment load commands (at 56
4755 ## each); under Cocoa 31 commands are required.
4756 if test "$HAVE_NS" = "yes"; then
4757 libs_nsgui="-framework AppKit"
4758 if test "$NS_IMPL_COCOA" = "yes"; then
4759 libs_nsgui="$libs_nsgui -framework IOKit"
4766 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4768 ## This is here because src/Makefile.in did some extra fiddling around
4769 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4770 ## LD_SWITCH_SYSTEM_TEMACS instead,
4771 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4772 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4775 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4776 ## find X at run-time.
4777 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4778 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4779 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4780 ## had different values in configure (in ac_link) and src/Makefile.in.
4781 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4782 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4785 ## MinGW64 does not prepend an underscore to symbols, so we must
4786 ## pass a different -entry switch to linker. FIXME: It is better
4787 ## to make the entry points the same by changing unexw32.c.
4788 case "$canonical" in
4789 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4790 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4794 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4796 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4799 if test x$ac_enable_profiling != x ; then
4801 *freebsd | gnu-linux) ;;
4802 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4806 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4808 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4810 ## MinGW-specific post-link processing of temacs.
4811 TEMACS_POST_LINK=":"
4814 if test "${opsys}" = "mingw32"; then
4815 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4816 ADDSECTION="../nt/addsection\$(EXEEXT)"
4817 ## Preload heap size of temacs.exe in MB.
4818 case "$canonical" in
4819 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4820 *) EMACS_HEAPSIZE=27 ;;
4824 AC_SUBST(ADDSECTION)
4825 AC_SUBST(TEMACS_POST_LINK)
4826 AC_SUBST(EMACS_HEAPSIZE)
4828 ## Common for all window systems
4829 if test "$window_system" != "none"; then
4830 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4831 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4834 AC_SUBST(WINDOW_SYSTEM_OBJ)
4836 AH_TOP([/* GNU Emacs site configuration template file.
4838 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4839 Free Software Foundation, Inc.
4841 This file is part of GNU Emacs.
4843 GNU Emacs is free software: you can redistribute it and/or modify
4844 it under the terms of the GNU General Public License as published by
4845 the Free Software Foundation, either version 3 of the License, or
4846 (at your option) any later version.
4848 GNU Emacs is distributed in the hope that it will be useful,
4849 but WITHOUT ANY WARRANTY; without even the implied warranty of
4850 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4851 GNU General Public License for more details.
4853 You should have received a copy of the GNU General Public License
4854 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4857 /* No code in Emacs #includes config.h twice, but some bits of code
4858 intended to work with other packages as well (like gmalloc.c)
4859 think they can include it as many times as they like. */
4860 #ifndef EMACS_CONFIG_H
4861 #define EMACS_CONFIG_H
4864 AH_BOTTOM([#include <conf_post.h>
4866 #endif /* EMACS_CONFIG_H */
4875 #### Report on what we decided to do.
4876 #### Report GTK as a toolkit, even if it doesn't use Xt.
4877 #### It makes printing result more understandable as using GTK sets
4878 #### toolkit_scroll_bars to yes by default.
4879 if test "${HAVE_GTK}" = "yes"; then
4880 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4883 if test $USE_ACL -ne 0; then
4884 acl_summary="yes $LIB_ACL"
4890 Configured for \`${canonical}'.
4892 Where should the build process find the source code? ${srcdir}
4893 What compiler should emacs be built with? ${CC} ${CFLAGS}
4894 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4895 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4896 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4897 What window system should Emacs use? ${window_system}
4898 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4900 if test -n "${x_includes}"; then
4901 echo " Where do we find X Windows header files? ${x_includes}"
4903 echo " Where do we find X Windows header files? Standard dirs"
4905 if test -n "${x_libraries}"; then
4906 echo " Where do we find X Windows libraries? ${x_libraries}"
4908 echo " Where do we find X Windows libraries? Standard dirs"
4911 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4912 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4913 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4914 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4915 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4916 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4917 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4918 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4920 echo " Does Emacs support sound? ${HAVE_SOUND}"
4922 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4923 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4924 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4925 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4926 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4927 echo " Does Emacs use access control lists? ${acl_summary}"
4928 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4929 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4930 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4932 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4933 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4934 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4935 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4936 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4938 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4941 if test -n "${EMACSDATA}"; then
4942 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4944 if test -n "${EMACSDOC}"; then
4945 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4950 if test "$HAVE_NS" = "yes"; then
4952 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4953 The installed application will go to nextstep/Emacs.app and can be
4954 run or moved from there."
4955 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4956 echo "The application will be fully self-contained."
4958 echo "The lisp resources for the application will be installed under ${prefix}.
4959 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4960 to run if these resources are not installed."
4965 if test "${opsys}" = "cygwin"; then
4967 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4973 # Remove any trailing slashes in these variables.
4974 [test "${prefix}" != NONE &&
4975 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4976 test "${exec_prefix}" != NONE &&
4977 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4979 if test "$HAVE_NS" = "yes"; then
4980 if test "$NS_IMPL_GNUSTEP" = yes; then
4981 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4982 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4983 ns_check_file=Resources/Info-gnustep.plist
4985 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4986 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4987 ns_check_file=Contents/Info.plist
4989 AC_SUBST(ns_check_file)
4992 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4993 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4994 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4995 dnl (else you get "no `Makefile.am' found for any configure output").
4996 dnl This will work, but you get a config.status that is not quite right
4997 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4998 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4999 dnl it seems better to just live with the duplication.
5000 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5002 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5003 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5004 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5005 leim/Makefile nextstep/Makefile nt/Makefile])
5007 dnl test/ is not present in release tarfiles.
5008 opt_makefile=test/automated/Makefile
5010 if test -f "$srcdir/$opt_makefile.in"; then
5011 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5012 dnl Again, it's best not to use a variable. Though you can add
5013 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5014 AC_CONFIG_FILES([test/automated/Makefile])
5018 dnl admin/ may or may not be present.
5019 opt_makefile=admin/unidata/Makefile
5021 if test -f "$srcdir/$opt_makefile.in"; then
5022 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5023 AC_CONFIG_FILES([admin/unidata/Makefile])
5027 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5029 AC_SUBST(SUBDIR_MAKEFILES_IN)
5031 dnl You might wonder (I did) why epaths.h is generated by running make,
5032 dnl rather than just letting configure generate it from epaths.in.
5033 dnl One reason is that the various paths are not fully expanded (see above);
5034 dnl eg gamedir=${prefix}/var/games/emacs.
5035 dnl Secondly, the GNU Coding standards require that one should be able
5036 dnl to run `make prefix=/some/where/else' and override the values set
5037 dnl by configure. This also explains the `move-if-change' test and
5038 dnl the use of force in the `epaths-force' rule in Makefile.in.
5039 AC_CONFIG_COMMANDS([src/epaths.h], [
5040 if test "${opsys}" = "mingw32"; then
5041 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5043 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5045 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5047 AC_CONFIG_COMMANDS([src/.gdbinit], [
5048 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5049 echo "source $srcdir/src/.gdbinit" > src/.gdbinit