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.$2"
790 # clang is unduly picky about some things.
791 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
798 [emacs_cv_clang=yes],
799 [emacs_cv_clang=no])])
801 # When compiling with GCC, prefer -isystem to -I when including system
802 # include files, to avoid generating useless diagnostics for the files.
803 if test "$gl_gcc_warnings" != yes; then
805 if test "$emacs_cv_clang" = yes
807 # Turn off some warnings if supported.
808 gl_WARN_ADD([-Wno-switch])
809 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
810 gl_WARN_ADD([-Wno-pointer-sign])
815 # This, $nw, is the list of warnings we disable.
818 case $with_x_toolkit in
819 lucid | athena | motif)
820 # Old toolkits mishandle 'const'.
821 nw="$nw -Wwrite-strings"
824 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
827 AC_SUBST([WERROR_CFLAGS])
829 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
830 nw="$nw -Woverlength-strings" # Not a problem these days
831 nw="$nw -Wlogical-op" # any use of fwrite provokes this
832 nw="$nw -Wformat-nonliteral" # we do this a lot
833 nw="$nw -Wvla" # warnings in gettext.h
834 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
835 nw="$nw -Wswitch-default" # Too many warnings for now
836 nw="$nw -Winline" # OK to ignore 'inline'
837 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
838 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
839 # signed overflow has undefined behavior
840 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
841 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
842 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
844 # Emacs doesn't care about shadowing; see
845 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
848 # Emacs's use of alloca inhibits protecting the stack.
849 nw="$nw -Wstack-protector"
851 # The following line should be removable at some point.
852 nw="$nw -Wsuggest-attribute=pure"
854 # This part is merely for shortening the command line,
855 # since -Wno-FOO needs to be added below regardless.
856 nw="$nw -Wmissing-field-initializers"
858 nw="$nw -Wtype-limits"
859 nw="$nw -Wunused-parameter"
861 if test $emacs_cv_clang = yes; then
862 nw="$nw -Wcast-align"
865 gl_MANYWARN_ALL_GCC([ws])
866 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
870 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
871 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
872 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
873 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
874 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
875 gl_WARN_ADD([-Wno-format-nonliteral])
877 # In spite of excluding -Wlogical-op above, it is enabled, as of
878 # gcc 4.5.0 20090517.
879 gl_WARN_ADD([-Wno-logical-op])
881 # More things that clang is unduly picky about.
882 if test $emacs_cv_clang = yes; then
883 gl_WARN_ADD([-Wno-format-extra-args])
884 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
885 gl_WARN_ADD([-Wno-unused-command-line-argument])
886 gl_WARN_ADD([-Wno-unused-value])
889 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
890 AH_VERBATIM([FORTIFY_SOURCE],
891 [/* Enable compile-time and run-time bounds-checking, and some warnings,
892 without upsetting glibc 2.15+. */
893 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
894 # define _FORTIFY_SOURCE 2
897 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
899 # We use a slightly smaller set of warning options for lib/.
900 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
902 nw="$nw -Wunused-macros"
904 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
905 AC_SUBST([GNULIB_WARN_CFLAGS])
910 dnl Some other nice autoconf tests.
911 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
914 dnl if test "x$RANLIB" = x; then
919 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
920 dnl can be made to directories. This is not relevant for our usage, and
921 dnl excludes some cases that work fine for us. Eg MS Windows or files
922 dnl hosted on AFS, both examples where simple links work, but links to
923 dnl directories fail. We use a cut-down version instead.
926 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
927 rm -f conf$$ conf$$.file
929 LN_S_FILEONLY='cp -p'
931 if (echo >conf$$.file) 2>/dev/null; then
932 if ln -s conf$$.file conf$$ 2>/dev/null; then
933 LN_S_FILEONLY='ln -s'
934 elif ln conf$$.file conf$$ 2>/dev/null; then
939 rm -f conf$$ conf$$.file
941 if test "$LN_S_FILEONLY" = "ln -s"; then
944 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
947 AC_SUBST(LN_S_FILEONLY)
950 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
951 dnl doesn't support links to directories, as in "ln file dir". But that
952 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
953 dnl executables at "make install" time.
954 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
955 dnl for more details.
956 if test "$opsys" = "mingw32"; then
960 AC_PATH_PROG(INSTALL_INFO, install-info, :,
961 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
962 dnl Don't use GZIP, which is used by gzip for additional parameters.
963 AC_PATH_PROG(GZIP_PROG, gzip)
965 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
966 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
968 if test $opsys = gnu-linux; then
969 AC_PATH_PROG(PAXCTL, paxctl,,
970 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
971 if test "X$PAXCTL" != X; then
972 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
973 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
974 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
975 else AC_MSG_RESULT(no); PAXCTL=""; fi])
979 ## Need makeinfo >= 4.7 (?) to build the manuals.
980 AC_PATH_PROG(MAKEINFO, makeinfo, no)
981 dnl By this stage, configure has already checked for egrep and set EGREP,
982 dnl or exited with an error if no egrep was found.
983 if test "$MAKEINFO" != "no"; then
985 $MAKEINFO --version 2> /dev/null |
986 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
992 ## Makeinfo is unusual. For a released Emacs, the manuals are
993 ## pre-built, and not deleted by the normal clean rules. makeinfo is
994 ## therefore in the category of "special tools" not normally required, which
995 ## configure does not have to check for (eg autoconf itself).
996 ## In a Bazaar checkout on the other hand, the manuals are not included.
997 ## So makeinfo is a requirement to build from Bazaar, and configure
998 ## should test for it as it does for any other build requirement.
999 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1000 ## with pre-built manuals, from a Bazaar checkout.
1003 if test "$MAKEINFO" = "no"; then
1005 if test "x${with_makeinfo}" = "xno"; then
1007 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1008 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1009 source tree does not seem to have pre-built manuals in the `info' directory.
1010 Either install a suitable version of makeinfo, or re-run configure
1011 with the `--without-makeinfo' option to build without the manuals.] )
1014 AC_SUBST(HAVE_MAKEINFO)
1016 dnl Just so that there is only a single place we need to edit.
1018 INFO_OPTS=--no-split
1022 if test $opsys = mingw32; then
1023 DOCMISC_W32=efaq-w32
1027 AC_SUBST(DOCMISC_W32)
1029 dnl Add our options to ac_link now, after it is set up.
1031 if test x$GCC = xyes; then
1032 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1033 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1035 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1036 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1039 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1040 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1041 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1042 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1043 dnl if not built to support GNU ld.
1045 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1046 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1047 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1048 dnl Eg "make LDFLAGS=... all" could run into problems,
1049 dnl http://bugs.debian.org/684788
1050 dnl * unnecessary, since temacs is the only thing that actually needs it.
1051 dnl Indeed this is where it was originally, prior to:
1052 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1053 late_LDFLAGS="$LDFLAGS"
1054 if test x$GCC = xyes; then
1055 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1057 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1060 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1062 AC_MSG_CHECKING([for -znocombreloc])
1063 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1064 [AC_MSG_RESULT(yes)],
1065 LDFLAGS_NOCOMBRELOC=
1066 [AC_MSG_RESULT(no)])
1068 LDFLAGS="$late_LDFLAGS"
1070 dnl The function dump-emacs will not be defined and temacs will do
1071 dnl (load "loadup") automatically unless told otherwise.
1072 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1074 your-opsys-here) CANNOT_DUMP=yes ;;
1077 test "$CANNOT_DUMP" = "yes" && \
1078 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1080 AC_SUBST(CANNOT_DUMP)
1083 UNEXEC_OBJ=unexelf.o
1085 # MSDOS uses unexcoff.o
1087 UNEXEC_OBJ=unexaix.o
1093 UNEXEC_OBJ=unexmacosx.o
1096 UNEXEC_OBJ=unexhp9k800.o
1099 UNEXEC_OBJ=unexw32.o
1102 # Use the Solaris dldump() function, called from unexsol.c, to dump
1103 # emacs, instead of the generic ELF dump code found in unexelf.c.
1104 # The resulting binary has a complete symbol table, and is better
1105 # for debugging and other observability tools (debuggers, pstack, etc).
1107 # If you encounter a problem using dldump(), please consider sending
1108 # a message to the OpenSolaris tools-linking mailing list:
1109 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1111 # It is likely that dldump() works with older Solaris too, but this has
1112 # not been tested, so for now this change is for Solaris 10 or newer.
1113 UNEXEC_OBJ=unexsol.o
1120 ## Let `ld' find image libs and similar things in /usr/local/lib.
1121 ## The system compiler, GCC, has apparently been modified to not
1122 ## look there, contrary to what a stock GCC would do.
1123 ### It's not our place to do this. See bug#10313#17.
1124 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1129 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1130 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1134 ### It's not our place to do this. See bug#10313#17.
1135 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1140 ## Han Boetes <han@boetes.org> says this is necessary,
1141 ## otherwise Emacs dumps core on elf systems.
1142 LD_SWITCH_SYSTEM="-Z"
1145 AC_SUBST(LD_SWITCH_SYSTEM)
1147 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1149 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1150 ## which has not been defined yet. When this was handled with cpp,
1151 ## it was expanded to null when configure sourced the s/*.h file.
1152 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1153 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1154 ## (or somesuch), but because it is supposed to go at the _front_
1155 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1156 ## Compare with the gnu-linux case below, which added to the end
1157 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1158 ## LD_SWITCH_SYSTEM_TEMACS.
1161 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1168 AC_CHECK_DECL([__ELF__])
1169 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1170 ## With ELF, make sure that all common symbols get allocated to in the
1171 ## data section. Otherwise, the dump of temacs may miss variables in
1172 ## the shared library that have been initialized. For example, with
1173 ## GNU libc, __malloc_initialized would normally be resolved to the
1174 ## shared library's .bss section, which is fatal.
1175 if test "x$GCC" = "xyes"; then
1176 C_SWITCH_MACHINE="-fno-common"
1178 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1181 UNEXEC_OBJ=unexalpha.o
1185 AC_SUBST(C_SWITCH_MACHINE)
1187 AC_SUBST(UNEXEC_OBJ)
1190 ## Some programs in src produce warnings saying certain subprograms
1191 ## are too complex and need a MAXMEM value greater than 2000 for
1192 ## additional optimization. --nils@exp-math.uni-essen.de
1193 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1194 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1195 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1196 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1197 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1198 AC_SUBST(C_SWITCH_SYSTEM)
1203 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1204 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1206 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1208 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1210 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1212 ## Motif needs -lgen.
1213 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1216 AC_SUBST(LIBS_SYSTEM)
1218 ### Make sure subsequent tests use flags consistent with the build flags.
1220 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1221 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1223 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1226 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1227 AC_DEFUN([AC_TYPE_SIZE_T])
1228 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1229 AC_DEFUN([AC_TYPE_UID_T])
1233 dnl Current possibilities handled by sed (aix4-2 -> aix,
1234 dnl gnu-linux -> gnu/linux, etc.):
1235 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1236 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1237 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1244 ## Adding -lm confuses the dynamic linker, so omit it.
1247 freebsd | dragonfly )
1248 SYSTEM_TYPE=berkeley-unix
1250 gnu-linux | gnu-kfreebsd )
1252 hpux10-20 | hpux11 )
1256 SYSTEM_TYPE=windows-nt
1258 dnl NB this may be adjusted below.
1260 SYSTEM_TYPE=berkeley-unix
1264 SYSTEM_TYPE=usg-unix-v
1270 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1271 [The type of system you are compiling for; sets `system-type'.])
1274 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1275 pre_PKG_CONFIG_LIBS=$LIBS
1277 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1279 dnl This function definition taken from Gnome 2.0
1280 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1281 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1282 dnl also defines GSTUFF_PKG_ERRORS on error
1283 AC_DEFUN([PKG_CHECK_MODULES], [
1286 if test "$PKG_CONFIG" = "no" ; then
1287 ifelse([$4], , [AC_MSG_ERROR([
1288 *** 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])
1290 PKG_CONFIG_MIN_VERSION=0.9.0
1291 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1292 AC_MSG_CHECKING(for $2)
1294 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1295 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1296 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1303 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1304 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1305 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1311 ## If we have a custom action on failure, don't print errors, but
1312 ## do set a variable so people can do so. Do it in a subshell
1313 ## to capture any diagnostics in invoking pkg-config.
1314 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1315 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1321 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1322 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1326 if test $succeeded = yes; then
1327 ifelse([$3], , :, [$3])
1329 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.])], [$4])
1334 if test "${with_sound}" != "no"; then
1335 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1336 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1337 have_sound_header=yes, [], [
1339 #define WIN32_LEAN_AND_MEAN
1340 #include <windows.h>
1343 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1344 AC_MSG_ERROR([OSS sound support requested but not found.])
1346 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1347 # Emulation library used on NetBSD.
1348 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1349 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1350 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1351 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1352 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1356 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1358 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1359 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1360 if test $HAVE_ALSA = yes; then
1361 SAVE_CFLAGS="$CFLAGS"
1363 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1364 LIBS="$ALSA_LIBS $LIBS"
1365 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1366 emacs_alsa_normal=yes,
1367 emacs_alsa_normal=no)
1368 if test "$emacs_alsa_normal" != yes; then
1369 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1370 [[snd_lib_error_set_handler (0);]])],
1371 emacs_alsa_subdir=yes,
1372 emacs_alsa_subdir=no)
1373 if test "$emacs_alsa_subdir" != yes; then
1374 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1376 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1379 CFLAGS="$SAVE_CFLAGS"
1381 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1382 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1383 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1384 elif test "${with_sound}" = "alsa"; then
1385 AC_MSG_ERROR([ALSA sound support requested but not found.])
1387 fi dnl with_sound = alsa|yes
1389 dnl Define HAVE_SOUND if we have sound support. We know it works and
1390 dnl compiles only on the specified platforms. For others, it
1391 dnl probably doesn't make sense to try.
1392 dnl FIXME So surely we should bypass this whole section if not using
1393 dnl one of these platforms?
1394 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1396 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1397 dnl Adjust the --with-sound help text if you change this.
1398 gnu-linux|freebsd|netbsd|mingw32)
1399 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1405 AC_SUBST(CFLAGS_SOUND)
1408 dnl checks for header files
1409 AC_CHECK_HEADERS_ONCE(
1413 sys/utsname.h pwd.h utmp.h util.h)
1415 AC_MSG_CHECKING(if personality LINUX32 can be set)
1416 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1417 emacs_cv_personality_linux32=yes,
1418 emacs_cv_personality_linux32=no)
1419 AC_MSG_RESULT($emacs_cv_personality_linux32)
1421 if test $emacs_cv_personality_linux32 = yes; then
1422 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1423 [Define to 1 if personality LINUX32 can be set.])
1426 dnl On Solaris 8 there's a compilation warning for term.h because
1427 dnl it doesn't define `bool'.
1428 AC_CHECK_HEADERS(term.h, , , -)
1430 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1432 if test $ac_cv_have_decl_sys_siglist != yes; then
1433 # For Tru64, at least:
1434 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1439 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1440 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1441 #if HAVE_SYS_SOCKET_H
1442 #include <sys/socket.h>
1444 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1445 #if HAVE_SYS_SOCKET_H
1446 #include <sys/socket.h>
1448 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1449 #if HAVE_SYS_SOCKET_H
1450 #include <sys/socket.h>
1453 dnl checks for structure members
1454 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1455 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1456 struct ifreq.ifr_addr,
1457 struct ifreq.ifr_addr.sa_len], , ,
1458 [AC_INCLUDES_DEFAULT
1459 #if HAVE_SYS_SOCKET_H
1460 #include <sys/socket.h>
1466 dnl Check for endianness.
1467 dnl AC_C_BIGENDIAN is done by gnulib.
1469 dnl check for Make feature
1470 dnl AC_PROG_MAKE_SET is done by Automake.
1475 dnl check for GNU Make if we have GCC and autodepend is on.
1476 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1477 AC_MSG_CHECKING([whether we are using GNU Make])
1479 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1480 if test "x$testval" != x; then
1483 ac_enable_autodepend=no
1485 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1486 if test $HAVE_GNU_MAKE = yes; then
1487 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1488 SAVE_CFLAGS="$CFLAGS"
1489 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1490 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1491 CFLAGS="$SAVE_CFLAGS"
1492 test -f deps.d || ac_enable_autodepend=no
1494 AC_MSG_RESULT([$ac_enable_autodepend])
1496 if test $ac_enable_autodepend = yes; then
1497 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1498 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1499 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1500 deps_frag=autodeps.mk
1503 deps_frag=$srcdir/src/$deps_frag
1506 AC_SUBST_FILE(deps_frag)
1509 lisp_frag=$srcdir/src/lisp.mk
1510 AC_SUBST_FILE(lisp_frag)
1513 dnl checks for operating system services
1514 AC_SYS_LONG_FILE_NAMES
1516 #### Choose a window system.
1518 ## We leave window_system equal to none if
1519 ## we end up building without one. Any new window system should
1520 ## set window_system to an appropriate value and add objects to
1521 ## window-system-specific substs.
1525 if test "$no_x" != yes; then
1529 LD_SWITCH_X_SITE_RPATH=
1530 if test "${x_libraries}" != NONE; then
1531 if test -n "${x_libraries}"; then
1532 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1533 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1535 x_default_search_path=""
1536 x_search_path=${x_libraries}
1537 if test -z "${x_search_path}"; then
1538 x_search_path=/usr/lib
1540 for x_library in `echo ${x_search_path}: | \
1541 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1543 ${x_library}/X11/%L/%T/%N%C%S:\
1544 ${x_library}/X11/%l/%T/%N%C%S:\
1545 ${x_library}/X11/%T/%N%C%S:\
1546 ${x_library}/X11/%L/%T/%N%S:\
1547 ${x_library}/X11/%l/%T/%N%S:\
1548 ${x_library}/X11/%T/%N%S"
1549 if test x"${x_default_search_path}" = x; then
1550 x_default_search_path=${x_search_path}
1552 x_default_search_path="${x_search_path}:${x_default_search_path}"
1556 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1558 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1559 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1562 if test x"${x_includes}" = x; then
1563 bitmapdir=/usr/include/X11/bitmaps
1565 # accumulate include directories that have X11 bitmap subdirectories
1567 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1568 if test -d "${bmd}/X11/bitmaps"; then
1569 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1571 if test -d "${bmd}/bitmaps"; then
1572 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1575 if test ${bmd_acc} != "dummyval"; then
1576 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1583 tmp_CPPFLAGS="$CPPFLAGS"
1584 tmp_CFLAGS="$CFLAGS"
1585 CPPFLAGS="$CPPFLAGS -x objective-c"
1586 CFLAGS="$CFLAGS -x objective-c"
1589 if test "${with_ns}" != no; then
1590 if test "${opsys}" = darwin; then
1592 ns_appdir=`pwd`/nextstep/Emacs.app
1593 ns_appbindir=${ns_appdir}/Contents/MacOS
1594 ns_appresdir=${ns_appdir}/Contents/Resources
1595 ns_appsrc=Cocoa/Emacs.base
1596 elif test -f $GNUSTEP_CONFIG_FILE; then
1598 ns_appdir=`pwd`/nextstep/Emacs.app
1599 ns_appbindir=${ns_appdir}
1600 ns_appresdir=${ns_appdir}/Resources
1601 ns_appsrc=GNUstep/Emacs.base
1602 dnl FIXME sourcing this several times in subshells seems inefficient.
1603 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1604 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1605 dnl I seemed to need these as well with GNUstep-startup 0.25.
1606 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1607 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1608 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1609 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1610 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1611 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1612 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1613 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1614 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1615 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1616 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1617 dnl If they had chosen to either define it or not, we could have
1618 dnl just used AC_CHECK_DECL here.
1619 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1620 emacs_cv_objc_exceptions,
1621 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1622 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1626 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1627 if test $emacs_cv_objc_exceptions = yes; then
1628 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1629 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1630 [Define if GNUstep uses ObjC exceptions.])
1631 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1635 dnl This is only used while we test the NS headers, it gets reset below.
1636 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1638 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1639 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1640 files are missing or cannot be compiled.])])
1643 if test "${NS_IMPL_COCOA}" = "yes"; then
1644 AC_MSG_CHECKING([for OSX 10.4 or newer])
1645 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1647 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1648 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1651 #error "OSX 10.4 or newer required"
1655 ns_osx_have_104=yes,
1657 AC_MSG_RESULT([$ns_osx_have_104])
1659 if test $ns_osx_have_104 = no; then
1660 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1662 AC_MSG_CHECKING([for OSX 10.5 or newer])
1663 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1665 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1666 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1669 #error "OSX 10.5 not found"
1673 ns_osx_have_105=yes,
1675 AC_MSG_RESULT([$ns_osx_have_105])
1676 if test $ns_osx_have_105 = yes; then
1677 macfont_file="macfont.o"
1680 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1682 ns_have_nsinteger=yes,
1683 ns_have_nsinteger=no)
1684 if test $ns_have_nsinteger = yes; then
1685 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1689 AC_SUBST(LIBS_GNUSTEP)
1691 INSTALL_ARCH_INDEP_EXTRA=install-etc
1692 ns_self_contained=no
1695 if test "${HAVE_NS}" = yes; then
1696 if test "$with_toolkit_scroll_bars" = "no"; then
1697 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1700 window_system=nextstep
1701 # set up packaging dirs
1702 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1703 ns_self_contained=yes
1704 prefix=${ns_appresdir}
1705 exec_prefix=${ns_appbindir}
1706 dnl This one isn't really used, only archlibdir is.
1707 libexecdir="\${ns_appbindir}/libexec"
1708 archlibdir="\${ns_appbindir}/libexec"
1709 etcdocdir="\${ns_appresdir}/etc"
1710 etcdir="\${ns_appresdir}/etc"
1711 dnl FIXME maybe set datarootdir instead.
1712 dnl That would also get applications, icons, man.
1713 infodir="\${ns_appresdir}/info"
1714 mandir="\${ns_appresdir}/man"
1715 lispdir="\${ns_appresdir}/lisp"
1716 leimdir="\${ns_appresdir}/leim"
1717 INSTALL_ARCH_INDEP_EXTRA=
1720 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1722 CFLAGS="$tmp_CFLAGS"
1723 CPPFLAGS="$tmp_CPPFLAGS"
1724 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1725 AC_SUBST(ns_self_contained)
1727 AC_SUBST(NS_OBJC_OBJ)
1738 if test "${with_w32}" != no; then
1741 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1742 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1743 cannot be found.])])
1746 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1749 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1754 if test "${opsys}" = "mingw32"; then
1755 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1756 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1757 #include <windows.h>
1758 #include <usp10.h>]],
1759 [[PIMAGE_NT_HEADERS pHeader;
1760 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1761 [emacs_cv_w32api=yes
1764 AC_MSG_RESULT($emacs_cv_w32api)
1765 if test "${emacs_cv_w32api}" = "no"; then
1766 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1777 if test "${HAVE_W32}" = "yes"; then
1778 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1779 AC_CHECK_TOOL(WINDRES, [windres],
1780 [AC_MSG_ERROR([No resource compiler found.])])
1781 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1782 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1783 EMACSRES="emacs.res"
1784 case "$canonical" in
1785 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1786 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1788 UPDATE_MANIFEST=update-game-score.exe.manifest
1789 if test "${opsys}" = "cygwin"; then
1790 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1791 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1792 # Tell the linker that emacs.res is an object (which we compile from
1793 # the rc file), not a linker script.
1794 W32_RES_LINK="-Wl,emacs.res"
1796 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1797 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1798 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1799 W32_RES_LINK="\$(EMACSRES)"
1800 CLIENTRES="emacsclient.res"
1801 CLIENTW="emacsclientw\$(EXEEXT)"
1802 FIRSTFILE_OBJ=firstfile.o
1805 LIBS_ECLIENT="-lcomctl32"
1806 LIB_WSOCK32="-lwsock32"
1807 NTLIB="ntlib.$ac_objext"
1808 XARGS_LIMIT="-s 10000"
1814 AC_SUBST(EMACS_MANIFEST)
1815 AC_SUBST(UPDATE_MANIFEST)
1818 AC_SUBST(W32_RES_LINK)
1819 AC_SUBST(FIRSTFILE_OBJ)
1822 AC_SUBST(LIBS_ECLIENT)
1823 AC_SUBST(LIB_WSOCK32)
1825 AC_SUBST(XARGS_LIMIT)
1827 if test "${HAVE_W32}" = "yes"; then
1832 ## $window_system is now set to the window system we will
1835 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1836 # Too many warnings for now.
1838 nw="$nw -Wsuggest-attribute=const"
1839 nw="$nw -Wsuggest-attribute=noreturn"
1840 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1842 gl_WARN_ADD([-Wno-unused-variable])
1843 gl_WARN_ADD([-Wno-unused-but-set-variable])
1844 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1852 case "${window_system}" in
1857 case "${with_x_toolkit}" in
1858 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1859 motif ) USE_X_TOOLKIT=MOTIF ;;
1861 term_header=gtkutil.h
1862 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1863 dnl USE_X_TOOLKIT is set.
1864 USE_X_TOOLKIT=none ;;
1865 gtk2 ) with_gtk2=yes
1866 term_header=gtkutil.h
1867 USE_X_TOOLKIT=none ;;
1868 gtk3 ) with_gtk3=yes
1869 term_header=gtkutil.h
1870 USE_X_TOOLKIT=none ;;
1871 no ) USE_X_TOOLKIT=none ;;
1872 dnl If user did not say whether to use a toolkit, make this decision later:
1873 dnl use the toolkit if we have gtk, or X11R5 or newer.
1874 * ) USE_X_TOOLKIT=maybe ;;
1878 term_header=nsterm.h
1881 term_header=w32term.h
1885 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1886 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1887 if test "$HAVE_XSERVER" = true ||
1888 test -n "$DISPLAY" ||
1889 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1890 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1891 were found. You should install the relevant development files for X
1892 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1893 sure you have development files for image handling, i.e.
1894 tiff, gif, jpeg, png and xpm.
1895 If you are sure you want Emacs compiled without X window support, pass
1901 ### We always support menus.
1904 # Does the opsystem file prohibit the use of the GNU malloc?
1905 # Assume not, until told otherwise.
1909 [whether malloc is Doug Lea style],
1910 [emacs_cv_var_doug_lea_malloc],
1913 [[#include <malloc.h>
1914 static void hook (void) {}]],
1915 [[malloc_set_state (malloc_get_state ());
1916 __after_morecore_hook = hook;
1917 __malloc_initialize_hook = hook;]])],
1918 [emacs_cv_var_doug_lea_malloc=yes],
1919 [emacs_cv_var_doug_lea_malloc=no])])
1920 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1923 dnl See comments in aix4-2.h about maybe using system malloc there.
1926 ## darwin ld insists on the use of malloc routines in the System framework.
1927 darwin|sol2-10) system_malloc=yes ;;
1930 if test "${system_malloc}" = "yes"; then
1931 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1934 (The GNU allocators don't work with this system configuration.)"
1938 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1939 VMLIMIT_OBJ=vm-limit.o
1941 AC_CHECK_HEADERS([sys/vlimit.h])
1942 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1945 [[extern char data_start[]; char ch;]],
1946 [[return data_start < &ch;]])],
1947 [emacs_cv_data_start=yes],
1948 [emacs_cv_data_start=no])])
1949 if test $emacs_cv_data_start = yes; then
1950 AC_DEFINE([HAVE_DATA_START], 1,
1951 [Define to 1 if data_start is the address of the start
1952 of the main data segment.])
1955 AC_SUBST(GMALLOC_OBJ)
1956 AC_SUBST(VMLIMIT_OBJ)
1958 if test "$doug_lea_malloc" = "yes" ; then
1959 if test "$GNU_MALLOC" = yes ; then
1961 (Using Doug Lea's new malloc from the GNU C Library.)"
1963 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1964 [Define to 1 if you are using the GNU C Library.])
1966 ## Use mmap directly for allocating larger buffers.
1967 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1968 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1969 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1971 gnu*) REL_ALLOC=no ;;
1975 if test x"${REL_ALLOC}" = x; then
1976 REL_ALLOC=${GNU_MALLOC}
1979 use_mmap_for_buffers=no
1981 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1985 if test $use_mmap_for_buffers = yes; then
1986 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1990 LIBS="$LIBS_SYSTEM $LIBS"
1992 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1993 AC_CHECK_LIB(dnet, dnet_ntoa)
1994 dnl This causes -lresolv to get used in subsequent tests,
1995 dnl which causes failures on some systems such as HPUX 9.
1996 dnl AC_CHECK_LIB(resolv, gethostbyname)
1998 dnl FIXME replace main with a function we actually want from this library.
1999 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2001 dnl Check if pthreads is available.
2003 AC_CHECK_HEADERS_ONCE(pthread.h)
2004 if test "$ac_cv_header_pthread_h"; then
2005 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2006 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2007 dnl testing for pthread_self if Emacs uses gmalloc.c.
2008 if test "$GMALLOC_OBJ" = gmalloc.o; then
2009 emacs_pthread_function=pthread_atfork
2011 emacs_pthread_function=pthread_self
2013 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
2015 if test "$HAVE_PTHREAD" = yes; then
2016 case "${canonical}" in
2018 *) LIB_PTHREAD="-lpthread"
2019 LIBS="$LIB_PTHREAD $LIBS" ;;
2021 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
2023 AC_SUBST([LIB_PTHREAD])
2025 AC_CHECK_LIB(pthreads, cma_open)
2027 ## Note: when using cpp in s/aix4.2.h, this definition depended on
2028 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
2029 ## the system file was sourced. Hence the value of LIBS_SYSTEM
2030 ## added to LIBS in configure would never contain the pthreads part,
2031 ## but the value used in Makefiles might. FIXME?
2033 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
2034 ## be harmless on older versions of X where it happens to exist.
2035 test "$opsys" = "aix4-2" && \
2036 test $ac_cv_lib_pthreads_cma_open = yes && \
2037 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
2039 dnl Check for need for bigtoc support on IBM AIX
2043 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2045 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2046 *) gdb_cv_bigtoc=-bbigtoc ;;
2049 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2050 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2055 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2056 # used for the tests that follow. We set them back to REAL_CFLAGS and
2057 # REAL_CPPFLAGS later on.
2059 REAL_CFLAGS="$CFLAGS"
2060 REAL_CPPFLAGS="$CPPFLAGS"
2062 if test "${HAVE_X11}" = "yes"; then
2063 DEFS="$C_SWITCH_X_SITE $DEFS"
2064 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2066 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2067 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2069 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2070 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2071 # but it's more convenient here to set LD_RUN_PATH since this
2072 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2073 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2074 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2078 if test "${opsys}" = "gnu-linux"; then
2079 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2080 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2081 [[XOpenDisplay ("foo");]])],
2082 [xgnu_linux_first_failure=no],
2083 [xgnu_linux_first_failure=yes])
2084 if test "${xgnu_linux_first_failure}" = "yes"; then
2085 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2086 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2087 OLD_CPPFLAGS="$CPPFLAGS"
2089 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2090 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2091 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2092 LIBS="$LIBS -b i486-linuxaout"
2093 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2094 [[XOpenDisplay ("foo");]])],
2095 [xgnu_linux_second_failure=no],
2096 [xgnu_linux_second_failure=yes])
2097 if test "${xgnu_linux_second_failure}" = "yes"; then
2098 # If we get the same failure with -b, there is no use adding -b.
2099 # So take it out. This plays safe.
2100 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2101 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2102 CPPFLAGS="$OLD_CPPFLAGS"
2113 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2114 # header files included from there.
2115 AC_MSG_CHECKING(for Xkb)
2116 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2117 #include <X11/XKBlib.h>]],
2118 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2119 emacs_xkb=yes, emacs_xkb=no)
2120 AC_MSG_RESULT($emacs_xkb)
2121 if test $emacs_xkb = yes; then
2122 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2125 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2126 XScreenNumberOfScreen)
2129 if test "${window_system}" = "x11"; then
2130 AC_MSG_CHECKING(X11 version 6)
2131 AC_CACHE_VAL(emacs_cv_x11_version_6,
2132 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2133 [[#if XlibSpecificationRelease < 6
2136 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2137 if test $emacs_cv_x11_version_6 = yes; then
2138 AC_MSG_RESULT(6 or newer)
2139 AC_DEFINE(HAVE_X11R6, 1,
2140 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2141 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2142 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2146 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2147 [Define if you have usable X11R6-style XIM support.])
2151 AC_MSG_RESULT(before 6)
2156 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2158 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2159 if test "${with_rsvg}" != "no"; then
2160 RSVG_REQUIRED=2.11.0
2161 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2163 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2164 AC_SUBST(RSVG_CFLAGS)
2167 if test $HAVE_RSVG = yes; then
2168 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2169 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2170 LIBS="$RSVG_LIBS $LIBS"
2176 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2177 if test "${with_imagemagick}" != "no"; then
2178 ## 6.2.8 is the earliest version known to work, but earlier versions
2179 ## might work - let us know if you find one.
2180 ## 6.0.7 does not work. See bug#7955.
2181 ## 6.8.2 makes Emacs crash; see Bug#13867.
2182 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2183 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2184 AC_SUBST(IMAGEMAGICK_CFLAGS)
2185 AC_SUBST(IMAGEMAGICK_LIBS)
2187 if test $HAVE_IMAGEMAGICK = yes; then
2188 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2189 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2190 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2191 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2199 gtk_term_header=$term_header
2202 if test "${opsys}" != "mingw32"; then
2203 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2206 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2208 dnl Checks for libraries.
2209 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2210 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2211 AC_MSG_ERROR($GTK_PKG_ERRORS)
2213 if test "$pkg_check_gtk" = "yes"; then
2214 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2215 GTK_OBJ=emacsgtkfixed.o
2216 gtk_term_header=gtkutil.h
2217 USE_GTK_TOOLKIT="GTK3"
2218 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2219 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2220 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2224 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2228 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2231 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2233 dnl Checks for libraries.
2234 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2235 if test "$pkg_check_gtk" = "no" &&
2236 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2238 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2240 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2244 if test x"$pkg_check_gtk" = xyes; then
2246 AC_SUBST(GTK_CFLAGS)
2248 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2249 CFLAGS="$CFLAGS $GTK_CFLAGS"
2250 LIBS="$GTK_LIBS $LIBS"
2251 dnl Try to compile a simple GTK program.
2252 AC_MSG_CHECKING([whether GTK compiles])
2256 [[/* Check the Gtk and Glib APIs. */
2257 #include <gtk/gtk.h>
2258 #include <glib-object.h>
2260 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2264 GtkSettings *gs = 0;
2265 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2266 strict C prohibits this. Use gtk_main_iteration to test that the
2267 libraries are there. */
2268 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2269 0, 0, 0, G_CALLBACK (callback), 0))
2270 gtk_main_iteration ();
2273 AC_MSG_RESULT([$GTK_COMPILES])
2274 if test "${GTK_COMPILES}" != "yes"; then
2276 if test "$USE_X_TOOLKIT" != "maybe"; then
2277 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2281 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2282 GTK_OBJ="gtkutil.o $GTK_OBJ"
2283 term_header=$gtk_term_header
2285 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2288 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2289 closing open displays. This is no problem if you just use
2290 one display, but if you use more than one and close one of them
2300 if test "${HAVE_GTK}" = "yes"; then
2302 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2303 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2304 if test "$with_toolkit_scroll_bars" != no; then
2305 with_toolkit_scroll_bars=yes
2308 dnl Check if we have the old file selection dialog declared and
2309 dnl in the link library. In 2.x it may be in the library,
2310 dnl but not declared if deprecated featured has been selected out.
2311 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2312 HAVE_GTK_FILE_SELECTION=no
2313 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2314 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2315 #include <gtk/gtk.h>])
2316 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2317 AC_CHECK_FUNCS(gtk_file_selection_new)
2320 dnl Same as above for gtk_handle_box.
2321 HAVE_GTK_HANDLE_BOX=no
2322 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2323 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2324 #include <gtk/gtk.h>])
2325 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2326 AC_CHECK_FUNCS(gtk_handle_box_new)
2329 dnl Same as above for gtk_tearoff_menu_item.
2330 HAVE_GTK_TEAROFF_MENU_ITEM=no
2331 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2332 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2333 #include <gtk/gtk.h>])
2334 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2335 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2338 dnl Check for functions introduced in 2.14 and later.
2339 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2340 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2341 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2342 gtk_orientable_set_orientation \
2343 gtk_window_set_has_resize_grip)
2345 term_header=gtkutil.h
2348 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2349 dnl other platforms.
2352 if test "${with_dbus}" = "yes"; then
2353 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2354 if test "$HAVE_DBUS" = yes; then
2355 LIBS="$LIBS $DBUS_LIBS"
2356 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2357 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2358 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2360 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2361 dbus_type_is_valid \
2362 dbus_validate_bus_name \
2363 dbus_validate_path \
2364 dbus_validate_interface \
2365 dbus_validate_member)
2371 dnl GSettings has been tested under GNU/Linux only.
2373 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2374 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2375 if test "$HAVE_GSETTINGS" = "yes"; then
2376 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2377 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2378 SETTINGS_LIBS="$GSETTINGS_LIBS"
2382 dnl GConf has been tested under GNU/Linux only.
2383 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2385 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2386 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2387 if test "$HAVE_GCONF" = yes; then
2388 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2389 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2390 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2391 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2395 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2396 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2397 if test "$HAVE_GOBJECT" = "yes"; then
2398 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2399 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2401 SAVE_CFLAGS="$CFLAGS"
2403 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2404 LIBS="$SETTINGS_LIBS $LIBS"
2405 CFLAGS="$SAVE_CFLAGS"
2408 AC_SUBST(SETTINGS_CFLAGS)
2409 AC_SUBST(SETTINGS_LIBS)
2412 dnl SELinux is available for GNU/Linux only.
2415 if test "${with_selinux}" = "yes"; then
2416 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2417 if test "$HAVE_LIBSELINUX" = yes; then
2418 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2419 LIBSELINUX_LIBS=-lselinux
2422 AC_SUBST(LIBSELINUX_LIBS)
2425 if test "${with_gnutls}" = "yes" ; then
2426 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2427 if test "${HAVE_GNUTLS}" = "yes"; then
2428 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2431 # Windows loads GnuTLS dynamically
2432 if test "${opsys}" = "mingw32"; then
2435 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2436 LIBS="$LIBGNUTLS_LIBS $LIBS"
2440 AC_SUBST(LIBGNUTLS_LIBS)
2441 AC_SUBST(LIBGNUTLS_CFLAGS)
2446 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2447 dnl a particular library. This doesn't make much sense?
2448 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2449 with_file_notification=no
2452 dnl MS Windows native file monitor is available for mingw32 only.
2453 case $with_file_notification,$opsys in
2454 w32,* | yes,mingw32)
2455 AC_CHECK_HEADER(windows.h)
2456 if test "$ac_cv_header_windows_h" = yes ; then
2457 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2458 NOTIFY_OBJ=w32notify.o
2459 NOTIFY_SUMMARY="yes (w32)"
2463 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2464 dnl has been added in glib 2.24. It has been tested under
2465 dnl GNU/Linux only. We take precedence over inotify, but this makes
2466 dnl only sense when glib has been compiled with inotify support. How
2468 case $with_file_notification,$NOTIFY_OBJ in
2470 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2471 if test "$HAVE_GFILENOTIFY" = "yes"; then
2472 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2473 NOTIFY_OBJ=gfilenotify.o
2474 NOTIFY_SUMMARY="yes -lgio (gfile)"
2478 dnl inotify is only available on GNU/Linux.
2479 case $with_file_notification,$NOTIFY_OBJ in
2481 AC_CHECK_HEADER(sys/inotify.h)
2482 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2483 AC_CHECK_FUNC(inotify_init1)
2484 if test "$ac_cv_func_inotify_init1" = yes; then
2485 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2486 NOTIFY_OBJ=inotify.o
2487 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2492 case $with_file_notification,$NOTIFY_OBJ in
2493 yes,* | no,* | *,?*) ;;
2494 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2497 if test -n "$NOTIFY_OBJ"; then
2498 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2500 AC_SUBST(NOTIFY_OBJ)
2501 AC_SUBST(GFILENOTIFY_CFLAGS)
2502 AC_SUBST(GFILENOTIFY_LIBS)
2504 dnl Do not put whitespace before the #include statements below.
2505 dnl Older compilers (eg sunos4 cc) choke on it.
2508 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2509 if test "$with_xaw3d" != no; then
2510 AC_CACHE_VAL(emacs_cv_xaw3d,
2511 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2512 #include <X11/Intrinsic.h>
2513 #include <X11/Xaw3d/Simple.h>]],
2515 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2516 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2517 emacs_cv_xaw3d=no)])
2521 if test $emacs_cv_xaw3d = yes; then
2522 AC_MSG_CHECKING(for xaw3d)
2523 AC_MSG_RESULT([yes; using Lucid toolkit])
2527 AC_DEFINE(HAVE_XAW3D, 1,
2528 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2530 AC_MSG_CHECKING(for xaw3d)
2532 AC_MSG_CHECKING(for libXaw)
2533 AC_CACHE_VAL(emacs_cv_xaw,
2534 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2535 #include <X11/Intrinsic.h>
2536 #include <X11/Xaw/Simple.h>]],
2540 if test $emacs_cv_xaw = yes; then
2541 AC_MSG_RESULT([yes; using Lucid toolkit])
2544 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2545 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2547 AC_MSG_ERROR([No X toolkit could be found.
2548 If you are sure you want Emacs compiled without an X toolkit, pass
2550 to configure. Otherwise, install the development libraries for the toolkit
2551 that you want to use (e.g. Gtk+) and re-run configure.])
2556 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2559 if test "${USE_X_TOOLKIT}" != "none"; then
2560 AC_MSG_CHECKING(X11 toolkit version)
2561 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2562 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2563 [[#if XtSpecificationRelease < 6
2566 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2567 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2568 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2569 AC_MSG_RESULT(6 or newer)
2570 AC_DEFINE(HAVE_X11XTR6, 1,
2571 [Define to 1 if you have the X11R6 or newer version of Xt.])
2572 LIBXTR6="-lSM -lICE"
2574 ## Use libw.a along with X11R6 Xt.
2575 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2578 AC_MSG_RESULT(before 6)
2581 dnl If using toolkit, check whether libXmu.a exists.
2582 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2584 if test x$HAVE_X11XTR6 = xyes; then
2585 LIBS="-lXt -lSM -lICE $LIBS"
2589 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2590 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2591 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2595 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2596 dnl Why not just test for libxmu in the normal way?
2599 ## These systems don't supply Xmu.
2601 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2609 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2610 if test "${HAVE_X11}" = "yes"; then
2611 if test "${USE_X_TOOLKIT}" != "none"; then
2612 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2617 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2618 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2619 if test -d /usr/include/openmotif; then
2620 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2621 emacs_cv_openmotif=yes
2622 case "$canonical" in
2623 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2624 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2627 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2630 emacs_cv_openmotif=no
2632 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2633 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2634 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2637 Motif version prior to 2.1.
2639 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2640 if test $emacs_cv_motif_version_2_1 = yes; then
2641 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2642 if test x$emacs_cv_openmotif = xyes; then
2643 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2646 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2647 # We put this in CFLAGS temporarily to precede other -I options
2648 # that might be in CFLAGS temporarily.
2649 # We put this in CPPFLAGS where it precedes the other -I options.
2650 OLD_CPPFLAGS=$CPPFLAGS
2652 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2653 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2654 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2656 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2657 if test $emacs_cv_lesstif = yes; then
2658 # Make sure this -I option remains in CPPFLAGS after it is set
2659 # back to REAL_CPPFLAGS.
2660 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2661 # have those other -I options anyway. Ultimately, having this
2662 # directory ultimately in CPPFLAGS will be enough.
2663 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2664 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2667 CPPFLAGS=$OLD_CPPFLAGS
2670 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2671 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2674 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2675 dnl using Motif or Xaw3d is available, and unless
2676 dnl --with-toolkit-scroll-bars=no was specified.
2678 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2679 [Define to 1 if we should use toolkit scroll bars.])dnl
2680 USE_TOOLKIT_SCROLL_BARS=no
2681 if test "${with_toolkit_scroll_bars}" != "no"; then
2682 if test "${USE_X_TOOLKIT}" != "none"; then
2683 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2684 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2686 USE_TOOLKIT_SCROLL_BARS=yes
2687 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2688 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2689 USE_TOOLKIT_SCROLL_BARS=yes
2691 elif test "${HAVE_GTK}" = "yes"; then
2692 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2693 USE_TOOLKIT_SCROLL_BARS=yes
2694 elif test "${HAVE_NS}" = "yes"; then
2695 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2696 USE_TOOLKIT_SCROLL_BARS=yes
2697 elif test "${HAVE_W32}" = "yes"; then
2698 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2699 USE_TOOLKIT_SCROLL_BARS=yes
2703 dnl See if XIM is available.
2704 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2705 #include <X11/Xlib.h>
2706 #include <X11/Xresource.h>]],
2707 [[XIMProc callback;]])],
2709 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2712 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2714 if test "${with_xim}" != "no"; then
2715 AC_DEFINE(USE_XIM, 1,
2716 [Define to 1 if we should use XIM, if it is available.])
2720 if test "${HAVE_XIM}" != "no"; then
2722 if test "$GCC" = yes; then
2723 CFLAGS="$CFLAGS --pedantic-errors"
2725 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2726 #include <X11/Xlib.h>
2727 #include <X11/Xresource.h>]],
2733 XPointer *client_data;
2735 /* If we're not using GCC, it's probably not XFree86, and this is
2736 probably right, but we can't use something like --pedantic-errors. */
2737 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2738 char*, XIMProc, XPointer*);
2740 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2742 [emacs_cv_arg6_star=yes])
2743 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2744 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2745 either XPointer or XPointer*.])dnl
2746 if test "$emacs_cv_arg6_star" = yes; then
2747 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2749 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2754 ### Start of font-backend (under any platform) section.
2755 # (nothing here yet -- this is a placeholder)
2756 ### End of font-backend (under any platform) section.
2758 ### Start of font-backend (under X11) section.
2759 if test "${HAVE_X11}" = "yes"; then
2760 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2762 ## Use -lXft if available, unless `--with-xft=no'.
2764 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2767 if test "x${with_xft}" != "xno"; then
2769 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2770 ## Because xftfont.c uses XRenderQueryExtension, we also
2771 ## need to link to -lXrender.
2773 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2774 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2775 OLD_CPPFLAGS="$CPPFLAGS"
2776 OLD_CFLAGS="$CFLAGS"
2778 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2779 CFLAGS="$CFLAGS $XFT_CFLAGS"
2780 XFT_LIBS="-lXrender $XFT_LIBS"
2781 LIBS="$XFT_LIBS $LIBS"
2782 AC_CHECK_HEADER(X11/Xft/Xft.h,
2783 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2784 [[#include <X11/X.h>]])
2786 if test "${HAVE_XFT}" = "yes"; then
2787 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2789 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2791 CPPFLAGS="$OLD_CPPFLAGS"
2792 CFLAGS="$OLD_CFLAGS"
2794 fi # "${HAVE_XFT}" = "yes"
2795 fi # "$HAVE_XFT" != no
2796 fi # "x${with_xft}" != "xno"
2798 ## We used to allow building with FreeType and without Xft.
2799 ## However, the ftx font backend driver is not in good shape.
2800 if test "$HAVE_XFT" != "yes"; then
2801 dnl For the "Does Emacs use" message at the end.
2805 dnl Strict linkers fail with
2806 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2807 dnl if -lfreetype is not specified.
2808 dnl The following is needed to set FREETYPE_LIBS.
2809 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2812 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2816 if test "${HAVE_FREETYPE}" = "yes"; then
2817 AC_DEFINE(HAVE_FREETYPE, 1,
2818 [Define to 1 if using the freetype and fontconfig libraries.])
2819 if test "${with_libotf}" != "no"; then
2820 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2822 if test "$HAVE_LIBOTF" = "yes"; then
2823 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2824 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2825 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2826 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2827 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2828 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2829 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2833 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2834 dnl Does the new font backend require it, or can it work without it?
2838 if test "${HAVE_LIBOTF}" = yes; then
2839 if test "${with_m17n_flt}" != "no"; then
2840 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2841 if test "$HAVE_M17N_FLT" = "yes"; then
2842 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2853 ### End of font-backend (under X11) section.
2855 AC_SUBST(FREETYPE_CFLAGS)
2856 AC_SUBST(FREETYPE_LIBS)
2857 AC_SUBST(FONTCONFIG_CFLAGS)
2858 AC_SUBST(FONTCONFIG_LIBS)
2859 AC_SUBST(LIBOTF_CFLAGS)
2860 AC_SUBST(LIBOTF_LIBS)
2861 AC_SUBST(M17N_FLT_CFLAGS)
2862 AC_SUBST(M17N_FLT_LIBS)
2864 ### Use -lXpm if available, unless `--with-xpm=no'.
2865 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2868 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2869 if test "${with_xpm}" != "no"; then
2870 SAVE_CPPFLAGS="$CPPFLAGS"
2871 SAVE_LDFLAGS="$LDFLAGS"
2872 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2873 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2874 AC_CHECK_HEADER(X11/xpm.h,
2875 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2876 if test "${HAVE_XPM}" = "yes"; then
2877 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2878 AC_EGREP_CPP(no_return_alloc_pixels,
2879 [#include "X11/xpm.h"
2880 #ifndef XpmReturnAllocPixels
2881 no_return_alloc_pixels
2883 ], HAVE_XPM=no, HAVE_XPM=yes)
2885 if test "${HAVE_XPM}" = "yes"; then
2886 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2890 CPPFLAGS="$SAVE_CPPFLAGS"
2891 LDFLAGS="$SAVE_LDFLAGS"
2896 if test "${HAVE_XPM}" = "yes"; then
2897 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2902 if test "${HAVE_X11}" = "yes"; then
2903 if test "${with_xpm}" != "no"; then
2904 AC_CHECK_HEADER(X11/xpm.h,
2905 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2906 if test "${HAVE_XPM}" = "yes"; then
2907 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2908 AC_EGREP_CPP(no_return_alloc_pixels,
2909 [#include "X11/xpm.h"
2910 #ifndef XpmReturnAllocPixels
2911 no_return_alloc_pixels
2913 ], HAVE_XPM=no, HAVE_XPM=yes)
2915 if test "${HAVE_XPM}" = "yes"; then
2923 if test "${HAVE_XPM}" = "yes"; then
2924 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2929 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2930 ### slightly different requirements wrt image libraries (it doesn't
2931 ### use -lXpm because it loads the xpm shared library dynamically at
2933 if test "${opsys}" = "mingw32"; then
2934 if test "${with_xpm}" != "no"; then
2935 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2939 if test "${HAVE_XPM}" = "yes"; then
2940 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2946 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2947 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2950 if test "${opsys}" = "mingw32"; then
2951 if test "${with_jpeg}" != "no"; then
2952 dnl Checking for jpeglib.h can lose because of a redefinition of
2954 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2956 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2957 if test "${HAVE_JPEG}" = "yes"; then
2958 AC_DEFINE(HAVE_JPEG)
2959 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2960 [#include <jpeglib.h>
2961 version=JPEG_LIB_VERSION
2963 [AC_DEFINE(HAVE_JPEG)],
2964 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2967 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2968 if test "${with_jpeg}" != "no"; then
2969 dnl Checking for jpeglib.h can lose because of a redefinition of
2971 AC_CHECK_HEADER(jerror.h,
2972 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2975 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2976 if test "${HAVE_JPEG}" = "yes"; then
2977 AC_DEFINE(HAVE_JPEG)
2978 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2979 [#include <jpeglib.h>
2980 version=JPEG_LIB_VERSION
2982 [AC_DEFINE(HAVE_JPEG)],
2983 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2986 if test "${HAVE_JPEG}" = "yes"; then
2992 ### Use -lpng if available, unless `--with-png=no'.
2993 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2996 if test "${opsys}" = "mingw32"; then
2997 if test "${with_png}" != "no"; then
2998 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
3000 if test "${HAVE_PNG}" = "yes"; then
3001 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
3003 AC_CHECK_DECL(png_longjmp,
3005 [AC_DEFINE(PNG_DEPSTRUCT, [],
3006 [Define to empty to suppress deprecation warnings when building
3007 with --enable-gcc-warnings and with libpng versions before 1.5,
3008 which lack png_longjmp.])],
3009 [[#ifdef HAVE_LIBPNG_PNG_H
3010 # include <libpng/png.h>
3016 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3017 if test "${with_png}" != "no"; then
3018 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3019 # in /usr/include/libpng.
3020 AC_CHECK_HEADERS(png.h libpng/png.h, break)
3021 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
3022 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
3026 if test "${HAVE_PNG}" = "yes"; then
3027 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
3028 LIBPNG="-lpng -lz -lm"
3030 AC_CHECK_DECL(png_longjmp,
3032 [AC_DEFINE(PNG_DEPSTRUCT, [],
3033 [Define to empty to suppress deprecation warnings when building
3034 with --enable-gcc-warnings and with libpng versions before 1.5,
3035 which lack png_longjmp.])],
3036 [[#ifdef HAVE_LIBPNG_PNG_H
3037 # include <libpng/png.h>
3048 if test "${with_zlib}" != "no"; then
3050 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3052 case $ac_cv_search_inflateEnd in
3053 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3056 if test "${HAVE_ZLIB}" = "yes"; then
3057 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3058 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3059 if test "${opsys}" = "mingw32"; then
3066 ### Use -ltiff if available, unless `--with-tiff=no'.
3067 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3070 if test "${opsys}" = "mingw32"; then
3071 if test "${with_tiff}" != "no"; then
3072 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3074 if test "${HAVE_TIFF}" = "yes"; then
3075 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3077 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3078 if test "${with_tiff}" != "no"; then
3079 AC_CHECK_HEADER(tiffio.h,
3081 # At least one tiff package requires the jpeg library.
3082 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3083 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3086 if test "${HAVE_TIFF}" = "yes"; then
3087 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3088 dnl FIXME -lz -lm, as per libpng?
3094 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3095 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3098 if test "${opsys}" = "mingw32"; then
3099 if test "${with_gif}" != "no"; then
3100 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3102 if test "${HAVE_GIF}" = "yes"; then
3103 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3105 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3106 || test "${HAVE_W32}" = "yes"; then
3107 AC_CHECK_HEADER(gif_lib.h,
3108 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3109 # Earlier versions can crash Emacs.
3110 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3112 if test "$HAVE_GIF" = yes; then
3114 elif test "$HAVE_GIF" = maybe; then
3115 # If gif_lib.h but no libgif, try libungif.
3116 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3117 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3120 if test "${HAVE_GIF}" = "yes"; then
3121 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3126 dnl Check for required libraries.
3127 if test "${HAVE_X11}" = "yes"; then
3130 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3131 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3132 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3133 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3134 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3135 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3136 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3137 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3138 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3139 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3141 if test "X${MISSING}" != X; then
3142 AC_MSG_ERROR([The following required libraries were not found:
3144 Maybe some development libraries/packages are missing?
3145 If you don't want to link with them give
3147 as options to configure])
3151 ### Use -lgpm if available, unless `--with-gpm=no'.
3154 if test "${with_gpm}" != "no"; then
3155 AC_CHECK_HEADER(gpm.h,
3156 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3158 if test "${HAVE_GPM}" = "yes"; then
3159 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3165 dnl Check for malloc/malloc.h on darwin
3166 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3169 ### Use NeXTstep API to implement GUI.
3170 if test "${HAVE_NS}" = "yes"; then
3171 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3172 if test "${NS_IMPL_COCOA}" = "yes"; then
3173 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3175 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3176 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3177 # See also .m.o rule in Makefile.in */
3178 # FIXME: are all these flags really needed? Document here why. */
3179 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3180 ## Extra CFLAGS applied to src/*.m files.
3181 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3186 ### Use session management (-lSM -lICE) if available
3189 if test "${HAVE_X11}" = "yes"; then
3190 AC_CHECK_HEADER(X11/SM/SMlib.h,
3191 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3193 if test "${HAVE_X_SM}" = "yes"; then
3194 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3198 *) LIBS="$LIBXSM $LIBS" ;;
3204 ### Use XRandr (-lXrandr) if available
3206 if test "${HAVE_X11}" = "yes"; then
3207 XRANDR_REQUIRED=1.2.2
3208 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3209 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3210 if test $HAVE_XRANDR = no; then
3211 # Test old way in case pkg-config doesn't have it (older machines).
3212 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3213 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3214 if test $HAVE_XRANDR = yes; then
3215 XRANDR_LIBS=-lXrandr
3216 AC_SUBST(XRANDR_LIBS)
3219 if test $HAVE_XRANDR = yes; then
3220 SAVE_CFLAGS="$CFLAGS"
3222 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3223 LIBS="$XRANDR_LIBS $LIBS"
3224 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3225 CFLAGS="$SAVE_CFLAGS"
3228 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3232 ### Use Xinerama (-lXinerama) if available
3234 if test "${HAVE_X11}" = "yes"; then
3235 XINERAMA_REQUIRED=1.0.2
3236 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3237 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3239 if test $HAVE_XINERAMA = no; then
3240 # Test old way in case pkg-config doesn't have it (older machines).
3241 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3242 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3243 if test $HAVE_XINERAMA = yes; then
3244 XINERAMA_LIBS=-lXinerama
3245 AC_SUBST(XINERAMA_LIBS)
3248 if test $HAVE_XINERAMA = yes; then
3249 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3254 ### Use libxml (-lxml2) if available
3255 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3257 if test "${with_xml2}" != "no"; then
3258 ### I'm not sure what the version number should be, so I just guessed.
3259 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3260 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3261 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3262 SAVE_CPPFLAGS="$CPPFLAGS"
3263 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3264 AC_CHECK_HEADER(libxml/HTMLparser.h,
3265 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3266 [#include <libxml/HTMLparser.h>])])
3267 CPPFLAGS="$SAVE_CPPFLAGS"
3268 if test "${HAVE_LIBXML2}" = "yes"; then
3269 LIBXML2_LIBS="-lxml2"
3270 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3273 if test "${HAVE_LIBXML2}" = "yes"; then
3274 if test "${opsys}" != "mingw32"; then
3275 LIBS="$LIBXML2_LIBS $LIBS"
3276 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3280 if test "${HAVE_LIBXML2}" = "yes"; then
3281 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3288 AC_SUBST(LIBXML2_LIBS)
3289 AC_SUBST(LIBXML2_CFLAGS)
3291 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3292 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3293 if test "${opsys}" = "mingw32"; then
3294 emacs_cv_netdb_declares_h_errno=yes
3296 AC_CACHE_CHECK(whether netdb declares h_errno,
3297 emacs_cv_netdb_declares_h_errno,
3298 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3299 [[return h_errno;]])],
3300 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3301 if test $emacs_cv_netdb_declares_h_errno = yes; then
3302 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3305 # sqrt and other floating-point functions such as fmod and frexp
3306 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3307 if test "${opsys}" != "mingw32"; then
3308 AC_CHECK_LIB(m, sqrt)
3311 # Check for mail-locking functions in a "mail" library. Probably this should
3312 # have the same check as for liblockfile below.
3313 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3314 if test $have_mail = yes; then
3316 LIBS="$LIBS_MAIL $LIBS"
3317 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3321 dnl Debian, at least:
3322 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3323 if test $have_lockfile = yes; then
3324 LIBS_MAIL=-llockfile
3325 LIBS="$LIBS_MAIL $LIBS"
3326 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3328 # If we have the shared liblockfile, assume we must use it for mail
3329 # locking (e.g. Debian). If we couldn't link against liblockfile
3330 # (no liblockfile.a installed), ensure that we don't need to.
3331 dnl This works for files generally, not just executables.
3332 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3333 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3334 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3335 if test $ac_cv_prog_liblockfile = yes; then
3336 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3337 This probably means that movemail could lose mail.
3338 There may be a `development' package to install containing liblockfile.])
3341 AC_CHECK_HEADERS_ONCE(maillock.h)
3344 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3345 ## interlock access to the mail spool. The alternative is a lock file named
3346 ## /usr/spool/mail/$USER.lock.
3349 aix4-2) mail_lock="lockf" ;;
3351 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3353 ## On GNU/Linux systems, both methods are used by various mail programs.
3354 ## I assume most people are using newer mailers that have heard of flock.
3355 ## Change this if you need to.
3356 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3357 ## configure gets the right answers, and that means *NOT* using flock.
3358 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3359 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3360 ## Debian maintainer hasn't provided a clean fix for Emacs.
3361 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3362 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3363 ## correct logic. -- fx
3364 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3365 ## liblockfile is a Free Software replacement for libmail, used on
3366 ## Debian systems and elsewhere. -rfr.
3369 if test $have_mail = yes || test $have_lockfile = yes; then
3370 test $ac_cv_header_maillock_h = yes && mail_lock=no
3375 mail_lock="none-needed" ;;
3379 case "$mail_lock" in
3380 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3382 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3386 *) BLESSMAIL_TARGET="need-blessmail" ;;
3388 AC_SUBST(BLESSMAIL_TARGET)
3391 AC_CHECK_FUNCS(accept4 gethostname \
3392 getrusage get_current_dir_name \
3394 select getpagesize setlocale \
3395 getrlimit setrlimit shutdown getaddrinfo \
3396 strsignal setitimer \
3397 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3398 gai_strerror getline getdelim sync \
3399 difftime posix_memalign \
3400 getpwent endpwent getgrent endgrent \
3402 cfmakeraw cfsetspeed copysign __executable_start log2)
3404 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3405 ## has a broken `rint' in some library versions including math library
3406 ## version number A.09.05.
3407 ## You can fix the math library by installing patch number PHSS_4630.
3408 ## But we can fix it more reliably for Emacs by just not using rint.
3409 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3412 *) AC_CHECK_FUNCS(random rint) ;;
3415 dnl Cannot use AC_CHECK_FUNCS
3416 AC_CACHE_CHECK([for __builtin_unwind_init],
3417 emacs_cv_func___builtin_unwind_init,
3418 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3419 emacs_cv_func___builtin_unwind_init=yes,
3420 emacs_cv_func___builtin_unwind_init=no)])
3421 if test $emacs_cv_func___builtin_unwind_init = yes; then
3422 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3423 [Define to 1 if you have the `__builtin_unwind_init' function.])
3426 AC_CHECK_HEADERS_ONCE(sys/un.h)
3431 AC_CHECK_FUNCS(grantpt)
3433 # PTY-related GNU extensions.
3434 AC_CHECK_FUNCS(getpt posix_openpt)
3436 # Check this now, so that we will NOT find the above functions in ncurses.
3437 # That is because we have not set up to link ncurses in lib-src.
3438 # It's better to believe a function is not available
3439 # than to expect to find it in ncurses.
3440 # Also we need tputs and friends to be able to build at all.
3441 AC_MSG_CHECKING([for library containing tputs])
3442 # Run a test program that contains a call to tputs, a call that is
3443 # never executed. This tests whether a pre-'main' dynamic linker
3444 # works with the library. It's too much trouble to actually call
3445 # tputs in the test program, due to portability hassles. When
3446 # cross-compiling, assume the test program will run if it links.
3447 AC_DEFUN([tputs_link_source], [
3449 [[extern void tputs (const char *, int, int (*)(int));
3450 int main (int argc, char **argv)
3453 tputs (argv[0], 0, 0);
3457 if test "${opsys}" = "mingw32"; then
3460 # Maybe curses should be tried earlier?
3461 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3462 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3464 if test -z "$tputs_library"; then
3468 LIBS_TERMCAP=-l$tputs_library
3470 LIBS="$LIBS_TERMCAP $LIBS"
3472 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3473 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3475 if test "X$msg" != Xno; then
3480 AC_MSG_RESULT([$msg])
3481 if test "X$msg" = Xno; then
3482 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3483 The following libraries were tried (in order):
3484 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3485 Please try installing whichever of these libraries is most appropriate
3486 for your system, together with its header files.
3487 For example, a libncurses-dev(el) or similar package.])
3490 ## Use termcap instead of terminfo?
3491 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3493 ## FIXME? In the cases below where we unconditionally set
3494 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3495 ## if that was found above to have tputs.
3496 ## Should we use the gnu* logic everywhere?
3498 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3499 ## The ncurses library has been moved out of the System framework in
3500 ## Mac OS X 10.2. So if configure detects it, set the command-line
3501 ## option to use it.
3502 darwin) LIBS_TERMCAP="-lncurses" ;;
3504 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3507 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3508 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3509 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3510 [[#if __FreeBSD_version < 400000
3513 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3515 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3517 if test $emacs_cv_freebsd_terminfo = yes; then
3518 LIBS_TERMCAP="-lncurses"
3521 LIBS_TERMCAP="-ltermcap"
3531 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3533 LIBS_TERMCAP="-ltermcap"
3537 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3539 ## hpux: Make sure we get select from libc rather than from libcurses
3540 ## because libcurses on HPUX 10.10 has a broken version of select.
3541 ## We used to use -lc -lcurses, but this may be cleaner.
3542 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3543 # set that way, now it uses the default). Isn't this a contradiction?
3544 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3548 TERMCAP_OBJ=tparam.o
3549 if test $TERMINFO = yes; then
3550 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3551 TERMCAP_OBJ=terminfo.o
3553 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3554 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3556 AC_SUBST(LIBS_TERMCAP)
3557 AC_SUBST(TERMCAP_OBJ)
3560 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3561 # On Darwin, res_init appears not to be useful: see bug#562 and
3562 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3565 if test $opsys != darwin; then
3567 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3568 #include <arpa/nameser.h>
3569 #include <resolv.h>]],
3570 [[return res_init();]])],
3571 have_res_init=yes, have_res_init=no)
3572 if test "$have_res_init" = no; then
3574 LIBS="$LIBS -lresolv"
3575 AC_MSG_CHECKING(for res_init with -lresolv)
3576 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3577 #include <arpa/nameser.h>
3578 #include <resolv.h>]],
3579 [[return res_init();]])],
3580 have_res_init=yes, have_res_init=no)
3581 AC_MSG_RESULT($have_res_init)
3582 if test "$have_res_init" = yes ; then
3588 if test "$have_res_init" = yes; then
3589 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3593 # Do we need the Hesiod library to provide the support routines?
3594 dnl FIXME? Should we be skipping this on Darwin too?
3596 if test "$with_hesiod" != no ; then
3597 # Don't set $LIBS here -- see comments above. FIXME which comments?
3598 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3599 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3600 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3601 if test "$resolv" = yes ; then
3606 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3607 hesiod=yes, :, $RESOLVLIB)])
3609 if test x"$hesiod" = xyes; then
3615 # Do we need libresolv (due to res_init or Hesiod)?
3616 if test "$resolv" = yes && test $opsys != darwin; then
3623 # These tell us which Kerberos-related libraries to use.
3630 if test "${with_kerberos}" != no; then
3631 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3632 if test $have_com_err = yes; then
3633 COM_ERRLIB=-lcom_err
3634 LIBS="$COM_ERRLIB $LIBS"
3636 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3637 if test $have_crypto = yes; then
3639 LIBS="$CRYPTOLIB $LIBS"
3641 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3642 if test $have_k5crypto = yes; then
3643 CRYPTOLIB=-lk5crypto
3644 LIBS="$CRYPTOLIB $LIBS"
3646 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3647 if test $have_krb5=yes; then
3649 LIBS="$KRB5LIB $LIBS"
3651 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3652 if test "${with_kerberos5}" = no; then
3653 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3654 if test $have_des425 = yes; then
3656 LIBS="$DESLIB $LIBS"
3658 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3659 if test $have_des = yes; then
3661 LIBS="$DESLIB $LIBS"
3664 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3665 if test $have_krb4 = yes; then
3667 LIBS="$KRB4LIB $LIBS"
3669 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3670 if test $have_krb = yes; then
3672 LIBS="$KRB4LIB $LIBS"
3677 if test "${with_kerberos5}" != no; then
3678 AC_CHECK_HEADERS(krb5.h,
3679 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3680 [#include <krb5.h>])])
3682 AC_CHECK_HEADERS(krb.h,,
3683 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3684 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3686 AC_CHECK_HEADERS(com_err.h)
3689 AC_SUBST(COM_ERRLIB)
3695 AC_CHECK_HEADERS(valgrind/valgrind.h)
3697 AC_CHECK_FUNCS_ONCE(tzset)
3698 AC_MSG_CHECKING(whether localtime caches TZ)
3699 AC_CACHE_VAL(emacs_cv_localtime_cache,
3700 [if test x$ac_cv_func_tzset = xyes; then
3701 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3702 char TZ_GMT0[] = "TZ=GMT0";
3703 char TZ_PST8[] = "TZ=PST8";
3706 time_t now = time ((time_t *) 0);
3707 int hour_GMT0, hour_unset;
3708 if (putenv (TZ_GMT0) != 0)
3710 hour_GMT0 = localtime (&now)->tm_hour;
3712 hour_unset = localtime (&now)->tm_hour;
3713 if (putenv (TZ_PST8) != 0)
3715 if (localtime (&now)->tm_hour == hour_GMT0)
3718 if (localtime (&now)->tm_hour != hour_unset)
3721 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3722 [# If we have tzset, assume the worst when cross-compiling.
3723 emacs_cv_localtime_cache=yes])
3725 # If we lack tzset, report that localtime does not cache TZ,
3726 # since we can't invalidate the cache if we don't have tzset.
3727 emacs_cv_localtime_cache=no
3729 AC_MSG_RESULT($emacs_cv_localtime_cache)
3730 if test $emacs_cv_localtime_cache = yes; then
3731 AC_DEFINE(LOCALTIME_CACHE, 1,
3732 [Define to 1 if localtime caches TZ.])
3736 AC_CHECK_FUNC(socket, , ok_so_far=no)
3737 if test $ok_so_far = yes; then
3738 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3740 if test $ok_so_far = yes; then
3741 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3743 if test $ok_so_far = yes; then
3744 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3745 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3746 [Define to 1 if you have inet sockets.])
3749 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3750 dnl This can be removed once we assume Autoconf 2.70.
3752 *-solaris2.4 | *-solaris2.4.*)
3753 dnl Disable the Autoconf-generated vfork test.
3754 : ${ac_cv_func_vfork_works=no};;
3759 AC_CHECK_FUNCS(snprintf)
3761 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3764 AC_MSG_CHECKING([whether GLib is linked in])
3765 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3768 [[g_print ("Hello world");]])],
3771 AC_MSG_RESULT([$links_glib])
3772 if test "${links_glib}" = "yes"; then
3773 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3774 if test "$HAVE_NS" = no;then
3780 dnl Adapted from Haible's version.
3781 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3782 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3783 [[char* cs = nl_langinfo(CODESET);]])],
3784 emacs_cv_langinfo_codeset=yes,
3785 emacs_cv_langinfo_codeset=no)
3787 if test $emacs_cv_langinfo_codeset = yes; then
3788 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3789 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3794 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3795 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3796 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3797 if test "$emacs_cv_c_restrict_arr" = yes; then
3798 AC_DEFINE(__restrict_arr, __restrict,
3799 [Define to compiler's equivalent of C99 restrict keyword in array
3800 declarations. Define as empty for no equivalent.])
3803 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3804 dnl how the tty code is related to POSIX and/or other versions of termios.
3805 dnl The following looks like a useful start.
3807 dnl AC_SYS_POSIX_TERMIOS
3808 dnl if test $ac_cv_sys_posix_termios = yes; then
3809 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3810 dnl and macros for terminal control.])
3811 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3814 dnl Turned on June 1996 supposing nobody will mind it.
3815 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3816 if test "${opsys}" != "mingw32"; then
3817 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3818 in the full name stands for the login id.])
3821 dnl Every platform that uses configure supports this.
3822 dnl There is a create-lockfiles option you can
3823 dnl customize if you do not want the lock files to be written.
3824 dnl So it is not clear that this #define still needs to exist.
3825 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3826 so that Emacs can tell instantly when you try to modify a file that
3827 someone else has modified in his/her Emacs.])
3829 dnl Everybody supports this, except MS.
3830 dnl Seems like the kind of thing we should be testing for, though.
3831 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3832 if test "${opsys}" != "mingw32"; then
3833 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3836 dnl Everybody supports this, except MS-DOS.
3837 dnl Seems like the kind of thing we should be testing for, though.
3838 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3839 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3840 4.2-compatible sockets.])
3842 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3844 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3845 a null file, or a data sink.])
3846 if test "${opsys}" = "mingw32"; then
3847 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3849 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3852 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3853 if test "${opsys}" = "mingw32"; then
3854 AC_DEFINE(SEPCHAR, [';'])
3856 AC_DEFINE(SEPCHAR, [':'])
3859 dnl Everybody supports this, except MS-DOS.
3860 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3862 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3865 AC_DEFINE(DIRECTORY_SEP, ['/'],
3866 [Character that separates directories in a file name.])
3868 if test "${opsys}" = "mingw32"; then
3869 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3870 [Returns true if character is a device separator.])
3872 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3873 [Returns true if character is a directory separator.])
3875 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3876 [Returns true if character is any form of separator.])
3878 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3879 [Returns true if character is a device separator.])
3881 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3882 [Returns true if character is a directory separator.])
3884 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3885 [Returns true if character is any form of separator.])
3888 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3892 dnl Unfortunately without libXmu we cannot support EditRes.
3893 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3894 AC_DEFINE(NO_EDITRES, 1)
3899 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3900 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3901 AC_DEFINE(NO_EDITRES, 1)
3907 irix6-5 | sol2* | unixware )
3908 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3909 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3910 dnl need the constant to dimension an array. So wire in the appropriate
3912 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3916 emacs_broken_SIGIO=no
3919 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3920 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3921 hpux* | irix6-5 | openbsd | sol2* | unixware )
3922 emacs_broken_SIGIO=yes
3926 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3927 dnl the way this system works, libc functions that return malloced
3928 dnl memory use the libc malloc implementation. Calling xfree or
3929 dnl xrealloc on the results of such functions results in a crash.
3931 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3932 dnl but that does not currently work on this system.
3934 dnl It is possible to completely override the malloc implementation on
3935 dnl AIX, but that involves putting the malloc functions in a shared
3936 dnl library and setting the MALLOCTYPE environment variable to point to
3937 dnl that shared library.
3939 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3940 dnl to avoid a crash just use the Emacs implementation for that function.
3942 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3943 dnl of this file, so that we do not check for get_current_dir_name
3944 dnl on AIX. But that might be fragile if something else ends
3945 dnl up testing for get_current_dir_name as a dependency.
3946 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3947 get_current_dir_name should not be used.])
3951 dnl Circumvent a bug in FreeBSD. In the following sequence of
3952 dnl writes/reads on a PTY, read(2) returns bogus data:
3954 dnl write(2) 1022 bytes
3955 dnl write(2) 954 bytes, get EAGAIN
3956 dnl read(2) 1024 bytes in process_read_output
3957 dnl read(2) 11 bytes in process_read_output
3959 dnl That is, read(2) returns more bytes than have ever been written
3960 dnl successfully. The 1033 bytes read are the 1022 bytes written
3961 dnl successfully after processing (for example with CRs added if the
3962 dnl terminal is set up that way which it is here). The same bytes will
3963 dnl be seen again in a later read(2), without the CRs.
3964 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3965 work around an issue when reading from a PTY.])
3971 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3972 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3977 darwin | dragonfly | freebsd | netbsd | openbsd )
3978 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3979 close a pty to make it a controlling terminal (it is already a
3980 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3984 dnl FIXME Surely we can test for this rather than hard-code it.
3986 netbsd | openbsd) sound_device="/dev/audio" ;;
3987 *) sound_device="/dev/dsp" ;;
3991 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3992 [Name of the default sound device.])
3995 dnl Emacs can read input using SIGIO and buffering characters itself,
3996 dnl or using CBREAK mode and making C-g cause SIGINT.
3997 dnl The choice is controlled by the variable interrupt_input.
3999 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4001 dnl Emacs uses the presence of the USABLE_SIGIO macro
4002 dnl to indicate whether or not signal-driven I/O is possible. It uses
4003 dnl INTERRUPT_INPUT to decide whether to use it by default.
4005 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4006 dnl CBREAK mode has two disadvantages
4007 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4008 dnl I hear that in system V this problem does not exist.
4009 dnl 2) Control-G causes output to be discarded.
4010 dnl I do not know whether this can be fixed in system V.
4012 dnl Another method of doing input is planned but not implemented.
4013 dnl It would have Emacs fork off a separate process
4014 dnl to read the input and send it to the true Emacs process
4017 darwin | gnu-linux | gnu-kfreebsd )
4018 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4023 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4024 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4025 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4026 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4027 dnl taking float or double parameters.
4029 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4030 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4031 file defines `NeedWidePrototypes' as `NO'.])
4036 dnl Used in process.c, this must be a loop, even if it only runs once.
4037 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4038 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4039 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4040 dnl trying suffixes 0-16.
4041 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4042 first PTY, if PTYs are supported.])
4043 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4044 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4045 end of a PTY, if non-standard.])
4046 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4047 end of a PTY, if non-standard.])
4051 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4052 dnl You allocate a pty by opening /dev/ptc to get the master side.
4053 dnl To get the name of the slave side, you just ttyname() the master side.
4054 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4055 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4059 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4060 dnl multi-line AC_DEFINEs are hard. :(
4061 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)])
4062 AC_DEFINE(PTY_NAME_SPRINTF, [])
4063 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4066 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4068 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4069 dnl Not used, because PTY_ITERATION is defined.
4070 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4071 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4072 dnl But we don't have to block SIGCHLD because it is blocked in the
4073 dnl implementation of grantpt.
4074 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4075 AC_DEFINE(PTY_NAME_SPRINTF, [])
4076 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4080 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4083 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4085 if test "x$ac_cv_func_grantpt" = xyes; then
4086 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4087 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4088 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4089 dnl to prevent sigchld_handler from intercepting the child's death.
4090 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); }])
4091 dnl if HAVE_POSIX_OPENPT
4092 if test "x$ac_cv_func_posix_openpt" = xyes; then
4093 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4094 AC_DEFINE(PTY_NAME_SPRINTF, [])
4096 elif test "x$ac_cv_func_getpt" = xyes; then
4097 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4098 AC_DEFINE(PTY_NAME_SPRINTF, [])
4100 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4103 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4108 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4109 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4110 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4114 dnl It looks like this cannot be right, because it is not a loop.
4115 dnl However, process.c actually does this:
4121 dnl which presumably makes it OK, since irix == sgi (?).
4122 dnl FIXME it seems like this special treatment is unnecessary?
4123 dnl Why can't irix use a single-trip loop like eg cygwin?
4124 AC_DEFINE(PTY_ITERATION, [])
4125 dnl Not used, because PTY_ITERATION is defined.
4126 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4127 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); }])
4128 dnl No need to get the pty name at all.
4129 AC_DEFINE(PTY_NAME_SPRINTF, [])
4130 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4131 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4135 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4136 dnl from intercepting that death. If any child but grantpt's should die
4137 dnl within, it should be caught after sigrelse(2).
4138 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); }])
4142 dnl Comments are as per sol2*.
4143 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); }])
4150 dnl This change means that we don't loop through allocate_pty too
4151 dnl many times in the (rare) event of a failure.
4152 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4153 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4154 dnl Push various streams modules onto a PTY channel. Used in process.c.
4155 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.])
4160 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4161 "typing" a signal character on the pty.])
4164 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4165 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4166 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4167 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4170 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4171 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4172 gnu-linux | gnu-kfreebsd )
4174 AC_MSG_CHECKING([for signals via characters])
4175 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4176 #include <linux/version.h>
4177 #if LINUX_VERSION_CODE < 0x20400
4178 # error "Linux version too old"
4180 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4182 AC_MSG_RESULT([$emacs_signals_via_chars])
4183 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4188 dnl Used in lisp.h, emacs.c, vm-limit.c
4189 dnl NEWS.18 describes this as "a number which contains
4190 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4191 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4192 stored in a Lisp_Object.])
4193 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4197 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4198 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4201 dnl The data segment on this machine always starts at address 0x40000000.
4202 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4205 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4210 AH_TEMPLATE(TAB3, [Undocumented.])
4213 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4215 gnu | dragonfly | freebsd | netbsd | openbsd )
4216 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4217 AC_DEFINE(TAB3, OXTABS)
4220 gnu-linux | gnu-kfreebsd )
4221 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4225 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4226 [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)],
4227 [Mark a secondary stack, like the register stack on the ia64.]), [])
4231 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4232 run_time_remap; for HPUX.])
4237 dnl This won't be used automatically yet. We also need to know, at least,
4238 dnl that the stack is continuous.
4239 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4240 registers relevant for conservative garbage collection in the jmp_buf.])
4244 dnl Not all the architectures are tested, but there are Debian packages
4245 dnl for SCM and/or Guile on them, so the technique must work. See also
4246 dnl comments in alloc.c concerning setjmp and gcc.
4247 dnl Fixme: it's probably safe to just use the GCC conditional below.
4248 gnu-linux | gnu-kfreebsd )
4249 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4250 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4251 || defined __alpha__ || defined __mips__ || defined __s390__ \
4252 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4253 || defined __ia64__ || defined __sh__
4256 # error "setjmp not known to work on this arch"
4258 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4263 if test x$GCC = xyes; then
4264 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4265 AC_DEFINE(GC_SETJMP_WORKS, 1)
4268 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4269 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4270 AC_DEFINE(GC_SETJMP_WORKS, 1)
4275 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4276 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4279 [[#include <setjmp.h>
4281 # define _longjmp longjmp
4286 _longjmp (j, 1);]])],
4287 [emacs_cv_func__setjmp=yes],
4288 [emacs_cv_func__setjmp=no])])
4289 if test $emacs_cv_func__setjmp = yes; then
4290 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4292 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4295 [[#include <setjmp.h>
4298 if (! sigsetjmp (j, 1))
4299 siglongjmp (j, 1);]])],
4300 [emacs_cv_func_sigsetjmp=yes],
4301 [emacs_cv_func_sigsetjmp=no])])
4302 if test $emacs_cv_func_sigsetjmp = yes; then
4303 AC_DEFINE([HAVE_SIGSETJMP], 1,
4304 [Define to 1 if sigsetjmp and siglongjmp work.
4305 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4311 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4312 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4313 dnl and this is all we need.
4314 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4321 dnl Used in xfaces.c.
4322 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4323 some systems, where it requires time.h.])
4328 dnl Define symbols to identify the version of Unix this is.
4329 dnl Define all the symbols that apply correctly.
4330 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4331 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4332 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4333 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4338 dnl This symbol should be defined on AIX Version 3 ???????
4339 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4341 # error "_AIX not defined"
4343 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4347 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4351 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4352 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4353 dnl distinguish OS X from pure Darwin.
4354 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4357 gnu-linux | gnu-kfreebsd )
4359 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4364 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4369 AC_DEFINE(USG5_4, [])
4370 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4374 AC_DEFINE(DOS_NT, [])
4375 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4376 if test "x$ac_enable_checking" != "x" ; then
4377 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4383 AC_DEFINE(USG5_4, [])
4384 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4389 AC_DEFINE(USG5_4, [])
4393 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4396 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4397 emacs_cv_usable_FIONREAD=no
4401 emacs_cv_usable_FIONREAD=yes
4406 [AC_LANG_PROGRAM([[#include <sys/types.h>
4407 #include <sys/ioctl.h>
4409 # include <sys/filio.h>
4412 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4413 [emacs_cv_usable_FIONREAD=yes],
4414 [emacs_cv_usable_FIONREAD=no])
4417 if test $emacs_cv_usable_FIONREAD = yes; then
4418 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4420 if test $emacs_broken_SIGIO = no; then
4421 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4423 [AC_LANG_PROGRAM([[#include <fcntl.h>
4426 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4427 [emacs_cv_usable_SIGIO=yes],
4428 [emacs_cv_usable_SIGIO=no])],
4429 [emacs_cv_usable_SIGIO=yes],
4430 [emacs_cv_usable_SIGIO=no])
4431 if test $emacs_cv_usable_SIGIO = yes; then
4432 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4439 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4440 dnl and on Cygwin prior to version 1.7.24 that becomes the
4441 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4442 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4443 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4444 dnl needed starting with cygwin-1.7.24, and it is no longer
4445 dnl effective starting with glib-2.36. */
4447 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4448 G_SLICE environment variable to "always-malloc" at startup.])
4452 dnl It works to open the pty's tty in the parent (Emacs), then
4453 dnl close and reopen it in the child.
4454 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4455 works to open a pty's tty in the parent process, then close and
4456 reopen it in the child.])
4460 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4461 use VSUSP instead of VSWTCH.])
4465 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4470 # Set up the CFLAGS for real compilation, so we can substitute it.
4471 CFLAGS="$REAL_CFLAGS"
4472 CPPFLAGS="$REAL_CPPFLAGS"
4474 ## Hack to detect a buggy GCC version.
4475 if test "x$GCC" = xyes \
4476 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4477 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4478 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4479 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4482 version=$PACKAGE_VERSION
4484 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4485 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4486 [Short copyright string for this version of Emacs.])
4489 ### Specify what sort of things we'll be editing into Makefile and config.h.
4490 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4492 AC_SUBST(configuration)
4497 AC_SUBST(exec_prefix)
4500 AC_SUBST(sharedstatedir)
4501 AC_SUBST(libexecdir)
4506 AC_SUBST(standardlisppath)
4507 AC_SUBST(locallisppath)
4509 AC_SUBST(x_default_search_path)
4511 AC_SUBST(archlibdir)
4516 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4517 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4518 ## end of LIBX_BASE, but nothing ever set it.
4519 AC_SUBST(LD_SWITCH_X_SITE)
4520 AC_SUBST(C_SWITCH_X_SITE)
4521 AC_SUBST(GNUSTEP_CFLAGS)
4523 ## Used in lwlib/Makefile.in.
4524 AC_SUBST(X_TOOLKIT_TYPE)
4526 AC_SUBST(ns_appbindir)
4527 AC_SUBST(ns_appresdir)
4529 AC_SUBST(GNU_OBJC_CFLAGS)
4530 AC_SUBST(OTHER_FILES)
4532 if test -n "${term_header}"; then
4533 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4534 [Define to the header for the built-in window system.])
4537 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4538 [Define to the canonical Emacs configuration name.])
4539 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4540 [Define to the options passed to configure.])
4541 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4542 define this to include extra configuration information.])
4546 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4553 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4554 AC_DEFINE(HAVE_X_WINDOWS, 1,
4555 [Define to 1 if you want to use the X window system.])
4557 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4559 if test "$HAVE_XFT" = "yes"; then
4560 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4561 elif test "$HAVE_FREETYPE" = "yes"; then
4562 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4572 if test "${USE_X_TOOLKIT}" != "none" ; then
4574 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4575 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4576 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4577 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4578 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4582 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4583 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4587 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4588 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4589 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4593 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4594 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4597 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4600 AC_SUBST(WIDGET_OBJ)
4603 case "$USE_X_TOOLKIT" in
4604 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4605 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4606 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4608 AC_SUBST(TOOLKIT_LIBW)
4610 if test "${opsys}" != "mingw32"; then
4611 if test "$USE_X_TOOLKIT" = "none"; then
4612 LIBXT_OTHER="\$(LIBXSM)"
4613 OLDXMENU_TARGET="really-oldXMenu"
4615 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4616 OLDXMENU_TARGET="really-lwlib"
4619 AC_SUBST(LIBXT_OTHER)
4621 ## The X Menu stuff is present in the X10 distribution, but missing
4622 ## from X11. If we have X10, just use the installed library;
4623 ## otherwise, use our own copy.
4624 if test "${HAVE_X11}" = "yes" ; then
4625 AC_DEFINE(HAVE_X11, 1,
4626 [Define to 1 if you want to use version 11 of X windows.
4627 Otherwise, Emacs expects to use version 10.])
4629 if test "$USE_X_TOOLKIT" = "none"; then
4630 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4632 OLDXMENU="\${lwlibdir}/liblw.a"
4634 LIBXMENU="\$(OLDXMENU)"
4635 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4636 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4638 ## For a syntactically valid Makefile; not actually used for anything.
4639 ## See comments in src/Makefile.in.
4641 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4642 if test "${HAVE_X_WINDOWS}" = "yes"; then
4651 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4658 AC_SUBST(OLDXMENU_TARGET)
4661 AC_SUBST(LIBX_OTHER)
4662 AC_SUBST(OLDXMENU_DEPS)
4664 if test "${HAVE_MENUS}" = "yes" ; then
4665 AC_DEFINE(HAVE_MENUS, 1,
4666 [Define to 1 if you have mouse menus. (This is supported in all configurations, but the option to specify it remains.)])
4669 if test "${GNU_MALLOC}" = "yes" ; then
4670 AC_DEFINE(GNU_MALLOC, 1,
4671 [Define to 1 if you want to use the GNU memory allocator.])
4675 if test "${REL_ALLOC}" = "yes" ; then
4676 AC_DEFINE(REL_ALLOC, 1,
4677 [Define REL_ALLOC if you want to use the relocating allocator for
4680 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4682 AC_SUBST(RALLOC_OBJ)
4684 if test "$opsys" = "cygwin"; then
4685 CYGWIN_OBJ="sheap.o cygw32.o"
4686 ## Cygwin differs because of its unexec().
4688 POST_ALLOC_OBJ=lastfile.o
4689 elif test "$opsys" = "mingw32"; then
4692 POST_ALLOC_OBJ=lastfile.o
4695 PRE_ALLOC_OBJ=lastfile.o
4698 AC_SUBST(CYGWIN_OBJ)
4699 AC_SUBST(PRE_ALLOC_OBJ)
4700 AC_SUBST(POST_ALLOC_OBJ)
4702 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4703 dnl verbatim defined above. The tricky name is apropos, as this hack
4704 dnl makes Fortify go sour!
4705 AH_VERBATIM([FORTIFY_SOUR],
4706 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4707 The workaround disables some useful run-time checking, so it
4708 should be conditional to the platforms with the performance bug.
4709 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4710 #if defined __APPLE__ && defined __GNUC__
4711 # ifndef _DONT_USE_CTYPE_INLINE_
4712 # define _DONT_USE_CTYPE_INLINE_
4714 # ifndef _FORTIFY_SOURCE
4715 # define _FORTIFY_SOURCE 0
4720 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4721 # it temporarily reverts them to their pre-pkg-config values,
4722 # because gnulib needs to work with both src (which uses the
4723 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4724 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4725 # and it therefore needs to run in an environment where LIBS does not
4726 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4727 # for some package unrelated to lib-src.
4730 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4731 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4732 gl_ASSERT_NO_GNULIB_POSIXCHECK
4733 gl_ASSERT_NO_GNULIB_TESTS
4738 if test "${opsys}" = "mingw32"; then
4739 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4740 # Remove unneeded switches from the value of CC that goes to Makefiles
4741 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4745 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4748 ## The -headerpad option tells ld (see man page) to leave room at the
4749 ## end of the header for adding load commands. Needed for dumping.
4750 ## 0x690 is the total size of 30 segment load commands (at 56
4751 ## each); under Cocoa 31 commands are required.
4752 if test "$HAVE_NS" = "yes"; then
4753 libs_nsgui="-framework AppKit"
4754 if test "$NS_IMPL_COCOA" = "yes"; then
4755 libs_nsgui="$libs_nsgui -framework IOKit"
4762 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4764 ## This is here because src/Makefile.in did some extra fiddling around
4765 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4766 ## LD_SWITCH_SYSTEM_TEMACS instead,
4767 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4768 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4771 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4772 ## find X at run-time.
4773 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4774 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4775 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4776 ## had different values in configure (in ac_link) and src/Makefile.in.
4777 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4778 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4781 ## MinGW64 does not prepend an underscore to symbols, so we must
4782 ## pass a different -entry switch to linker. FIXME: It is better
4783 ## to make the entry points the same by changing unexw32.c.
4784 case "$canonical" in
4785 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4786 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4790 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4792 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4795 if test x$ac_enable_profiling != x ; then
4797 *freebsd | gnu-linux) ;;
4798 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4802 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4804 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4806 ## MinGW-specific post-link processing of temacs.
4807 TEMACS_POST_LINK=":"
4810 if test "${opsys}" = "mingw32"; then
4811 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4812 ADDSECTION="../nt/addsection\$(EXEEXT)"
4813 ## Preload heap size of temacs.exe in MB.
4814 case "$canonical" in
4815 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4816 *) EMACS_HEAPSIZE=27 ;;
4820 AC_SUBST(ADDSECTION)
4821 AC_SUBST(TEMACS_POST_LINK)
4822 AC_SUBST(EMACS_HEAPSIZE)
4824 ## Common for all window systems
4825 if test "$window_system" != "none"; then
4826 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4827 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4830 AC_SUBST(WINDOW_SYSTEM_OBJ)
4832 AH_TOP([/* GNU Emacs site configuration template file.
4834 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4835 Free Software Foundation, Inc.
4837 This file is part of GNU Emacs.
4839 GNU Emacs is free software: you can redistribute it and/or modify
4840 it under the terms of the GNU General Public License as published by
4841 the Free Software Foundation, either version 3 of the License, or
4842 (at your option) any later version.
4844 GNU Emacs is distributed in the hope that it will be useful,
4845 but WITHOUT ANY WARRANTY; without even the implied warranty of
4846 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4847 GNU General Public License for more details.
4849 You should have received a copy of the GNU General Public License
4850 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4853 /* No code in Emacs #includes config.h twice, but some bits of code
4854 intended to work with other packages as well (like gmalloc.c)
4855 think they can include it as many times as they like. */
4856 #ifndef EMACS_CONFIG_H
4857 #define EMACS_CONFIG_H
4860 AH_BOTTOM([#include <conf_post.h>
4862 #endif /* EMACS_CONFIG_H */
4871 #### Report on what we decided to do.
4872 #### Report GTK as a toolkit, even if it doesn't use Xt.
4873 #### It makes printing result more understandable as using GTK sets
4874 #### toolkit_scroll_bars to yes by default.
4875 if test "${HAVE_GTK}" = "yes"; then
4876 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4879 if test $USE_ACL -ne 0; then
4880 acl_summary="yes $LIB_ACL"
4886 Configured for \`${canonical}'.
4888 Where should the build process find the source code? ${srcdir}
4889 What compiler should emacs be built with? ${CC} ${CFLAGS}
4890 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4891 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4892 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4893 What window system should Emacs use? ${window_system}
4894 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4896 if test -n "${x_includes}"; then
4897 echo " Where do we find X Windows header files? ${x_includes}"
4899 echo " Where do we find X Windows header files? Standard dirs"
4901 if test -n "${x_libraries}"; then
4902 echo " Where do we find X Windows libraries? ${x_libraries}"
4904 echo " Where do we find X Windows libraries? Standard dirs"
4907 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4908 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4909 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4910 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4911 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4912 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4913 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4914 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4916 echo " Does Emacs support sound? ${HAVE_SOUND}"
4918 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4919 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4920 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4921 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4922 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4923 echo " Does Emacs use access control lists? ${acl_summary}"
4924 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4925 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4926 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4928 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4929 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4930 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4931 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4932 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4934 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4937 if test -n "${EMACSDATA}"; then
4938 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4940 if test -n "${EMACSDOC}"; then
4941 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4946 if test "$HAVE_NS" = "yes"; then
4948 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4949 The installed application will go to nextstep/Emacs.app and can be
4950 run or moved from there."
4951 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4952 echo "The application will be fully self-contained."
4954 echo "The lisp resources for the application will be installed under ${prefix}.
4955 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4956 to run if these resources are not installed."
4961 if test "${opsys}" = "cygwin"; then
4963 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4969 # Remove any trailing slashes in these variables.
4970 [test "${prefix}" != NONE &&
4971 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4972 test "${exec_prefix}" != NONE &&
4973 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4975 if test "$HAVE_NS" = "yes"; then
4976 if test "$NS_IMPL_GNUSTEP" = yes; then
4977 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4978 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4979 ns_check_file=Resources/Info-gnustep.plist
4981 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4982 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4983 ns_check_file=Contents/Info.plist
4985 AC_SUBST(ns_check_file)
4988 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4989 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4990 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4991 dnl (else you get "no `Makefile.am' found for any configure output").
4992 dnl This will work, but you get a config.status that is not quite right
4993 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4994 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4995 dnl it seems better to just live with the duplication.
4996 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4998 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4999 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5000 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5001 leim/Makefile nextstep/Makefile nt/Makefile])
5003 dnl test/ is not present in release tarfiles.
5004 opt_makefile=test/automated/Makefile
5006 if test -f "$srcdir/$opt_makefile.in"; then
5007 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5008 dnl Again, it's best not to use a variable. Though you can add
5009 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5010 AC_CONFIG_FILES([test/automated/Makefile])
5014 dnl admin/ may or may not be present.
5015 opt_makefile=admin/unidata/Makefile
5017 if test -f "$srcdir/$opt_makefile.in"; then
5018 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5019 AC_CONFIG_FILES([admin/unidata/Makefile])
5023 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5025 AC_SUBST(SUBDIR_MAKEFILES_IN)
5027 dnl You might wonder (I did) why epaths.h is generated by running make,
5028 dnl rather than just letting configure generate it from epaths.in.
5029 dnl One reason is that the various paths are not fully expanded (see above);
5030 dnl eg gamedir=${prefix}/var/games/emacs.
5031 dnl Secondly, the GNU Coding standards require that one should be able
5032 dnl to run `make prefix=/some/where/else' and override the values set
5033 dnl by configure. This also explains the `move-if-change' test and
5034 dnl the use of force in the `epaths-force' rule in Makefile.in.
5035 AC_CONFIG_COMMANDS([src/epaths.h], [
5036 if test "${opsys}" = "mingw32"; then
5037 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5039 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5041 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5043 AC_CONFIG_COMMANDS([src/.gdbinit], [
5044 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5045 echo "source $srcdir/src/.gdbinit" > src/.gdbinit