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-info],[don't compress the installed Info pages])
270 if test $with_compress_info = yes; then
277 AC_ARG_WITH([pkg-config-prog],dnl
278 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
279 [file name of pkg-config for finding GTK and librsvg])])
280 if test "X${with_pkg_config_prog}" != X; then
281 if test "${with_pkg_config_prog}" != yes; then
282 PKG_CONFIG="${with_pkg_config_prog}"
286 AC_ARG_WITH(gameuser,dnl
287 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
288 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
289 && gameuser="${with_gameuser}"
290 test "X$gameuser" = X && gameuser=games
292 AC_ARG_WITH([gnustep-conf],dnl
293 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
294 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
295 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
296 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
297 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
298 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
300 AC_ARG_ENABLE(ns-self-contained,
301 [AS_HELP_STRING([--disable-ns-self-contained],
302 [disable self contained build under NeXTstep])],
303 EN_NS_SELF_CONTAINED=$enableval,
304 EN_NS_SELF_CONTAINED=yes)
306 AC_ARG_ENABLE(locallisppath,
307 [AS_HELP_STRING([--enable-locallisppath=PATH],
308 [directories Emacs should search for lisp files specific
310 if test "${enableval}" = "no"; then
312 elif test "${enableval}" != "yes"; then
313 locallisppath=${enableval}
316 AC_ARG_ENABLE(checking,
317 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
318 [enable expensive run-time checks. With LIST,
319 enable only specific categories of checks.
320 Categories are: all,yes,no.
321 Flags are: stringbytes, stringoverrun, stringfreelist,
322 xmallocoverrun, conslist, glyphs])],
323 [ac_checking_flags="${enableval}"],[])
324 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
325 for check in $ac_checking_flags
328 # these set all the flags to specific states
329 yes) ac_enable_checking=1 ;;
330 no) ac_enable_checking= ;
331 ac_gc_check_stringbytes= ;
332 ac_gc_check_string_overrun= ;
333 ac_gc_check_string_free_list= ;
334 ac_xmalloc_overrun= ;
335 ac_gc_check_cons_list= ;
337 all) ac_enable_checking=1 ;
338 ac_gc_check_stringbytes=1 ;
339 ac_gc_check_string_overrun=1 ;
340 ac_gc_check_string_free_list=1 ;
341 ac_xmalloc_overrun=1 ;
342 ac_gc_check_cons_list=1 ;
344 # these enable particular checks
345 stringbytes) ac_gc_check_stringbytes=1 ;;
346 stringoverrun) ac_gc_check_string_overrun=1 ;;
347 stringfreelist) ac_gc_check_string_free_list=1 ;;
348 xmallocoverrun) ac_xmalloc_overrun=1 ;;
349 conslist) ac_gc_check_cons_list=1 ;;
350 glyphs) ac_glyphs_debug=1 ;;
351 *) AC_MSG_ERROR(unknown check category $check) ;;
356 if test x$ac_enable_checking != x ; then
357 AC_DEFINE(ENABLE_CHECKING, 1,
358 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
360 if test x$ac_gc_check_stringbytes != x ; then
361 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
362 [Define this temporarily to hunt a bug. If defined, the size of
363 strings is redundantly recorded in sdata structures so that it can
364 be compared to the sizes recorded in Lisp strings.])
366 if test x$ac_gc_check_string_overrun != x ; then
367 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
368 [Define this to check for short string overrun.])
370 if test x$ac_gc_check_string_free_list != x ; then
371 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
372 [Define this to check the string free list.])
374 if test x$ac_xmalloc_overrun != x ; then
375 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
376 [Define this to check for malloc buffer overrun.])
378 if test x$ac_gc_check_cons_list != x ; then
379 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
380 [Define this to check for errors in cons list.])
382 if test x$ac_glyphs_debug != x ; then
383 AC_DEFINE(GLYPH_DEBUG, 1,
384 [Define this to enable glyphs debugging code.])
387 AC_ARG_ENABLE(check-lisp-object-type,
388 [AS_HELP_STRING([--enable-check-lisp-object-type],
389 [enable compile time checks for the Lisp_Object data type.
390 This is useful for development for catching certain types of bugs.])],
391 if test "${enableval}" != "no"; then
392 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
393 [Define this to enable compile time checks for the Lisp_Object data type.])
397 dnl The name of this option is unfortunate. It predates, and has no
398 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
399 dnl Actually, it stops it working.
400 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
401 AC_ARG_ENABLE(profiling,
402 [AS_HELP_STRING([--enable-profiling],
403 [build emacs with low-level, gprof profiling support.
404 Mainly useful for debugging Emacs itself. May not work on
405 all platforms. Stops profiler.el working.])],
406 [ac_enable_profiling="${enableval}"],[])
407 if test x$ac_enable_profiling != x ; then
408 PROFILING_CFLAGS="-DPROFILING=1 -pg"
412 AC_SUBST(PROFILING_CFLAGS)
414 AC_ARG_ENABLE(autodepend,
415 [AS_HELP_STRING([--enable-autodepend],
416 [automatically generate dependencies to .h-files.
417 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
419 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
421 AC_ARG_ENABLE(gtk-deprecation-warnings,
422 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
423 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
424 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
426 #### Make srcdir absolute, if it isn't already. It's important to
427 #### avoid running the file name through pwd unnecessarily, since pwd can
428 #### give you automounter prefixes, which can go away. We do all this
429 #### so Emacs can find its files when run uninstalled.
430 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
433 [[\\/]]* | ?:[[\\/]]*) ;;
435 ## We may be able to use the $PWD environment variable to make this
436 ## absolute. But sometimes PWD is inaccurate.
437 ## Note: we used to use $PWD at the end instead of `pwd`,
438 ## but that tested only for a well-formed and valid PWD,
439 ## it did not object when PWD was well-formed and valid but just wrong.
440 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
444 srcdir=`(cd "$srcdir"; pwd)`
447 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
450 ### Canonicalize the configuration name.
454 configuration=${host_alias-${build_alias-$host}}
456 dnl This used to use changequote, but, apart from `changequote is evil'
457 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
458 dnl the great gob of text. Thus it's not processed for possible expansion.
459 dnl Just make sure the brackets remain balanced.
461 dnl Since Emacs can't find matching pairs of quotes, boundaries are
462 dnl indicated by comments.
466 ### If you add support for a new configuration, add code to this
467 ### switch statement to recognize your configuration name and select
468 ### the appropriate operating system file.
470 ### You would hope that you could choose an s/*.h
471 ### file based on the operating system portion. However, it turns out
472 ### that each s/*.h file is pretty manufacturer-specific.
473 ### So we basically have to have a special case for each
474 ### configuration name.
476 ### As far as handling version numbers on operating systems is
477 ### concerned, make sure things will fail in a fixable way. If
478 ### /etc/MACHINES doesn't say anything about version numbers, be
479 ### prepared to handle anything reasonably. If version numbers
480 ### matter, be sure /etc/MACHINES says something about it.
483 case "${canonical}" in
485 ## GNU/Linux and similar ports
500 ## FreeBSD kernel + glibc based userland
515 ## Apple Darwin / Mac OS X
517 case "${canonical}" in
524 ## Use fink packages if available.
525 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
526 ## if test -d /sw/include && test -d /sw/lib; then
527 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
528 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
537 ## HP 9000 series 700 and 800, running HP/UX
541 hppa*-hp-hpux1[1-9]* )
543 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
547 rs6000-ibm-aix4.[23]* )
550 powerpc-ibm-aix4.[23]* )
553 rs6000-ibm-aix[56]* )
556 powerpc-ibm-aix[56]* )
560 ## Silicon Graphics machines
564 # Without defining _LANGUAGE_C, things get masked out in the headers
565 # so that, for instance, grepping for `free' in stdlib.h fails and
566 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
567 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
572 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
573 | x86_64-*-solaris2* | x86_64-*-sunos5*)
574 case "${canonical}" in
576 amd64-*-*|x86_64-*-*) ;;
580 case "${canonical}" in
581 *-sunos5.6* | *-solaris2.6* )
585 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
587 emacs_check_sunpro_c=yes
589 *-sunos5* | *-solaris* )
591 emacs_check_sunpro_c=yes
594 ## Watch out for a compiler that we know will not work.
595 case "${canonical}" in
596 *-solaris* | *-sunos5* )
597 if [ "x$CC" = x/usr/ucb/cc ]; then
598 ## /usr/ucb/cc doesn't work;
599 ## we should find some other compiler that does work.
607 ## Intel 386 machines where we don't care about the manufacturer.
609 case "${canonical}" in
610 *-darwin* ) opsys=darwin ;;
613 # MinGW overrides and adds some system headers in nt/inc.
614 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
616 *-sysv4.2uw* ) opsys=unixware ;;
617 *-sysv5uw* ) opsys=unixware ;;
618 *-sysv5OpenUNIX* ) opsys=unixware ;;
619 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
628 ### If the code above didn't choose an operating system, just choose
629 ### an operating system based on the configuration name. You really
630 ### only want to use this when you have no idea what the right
631 ### operating system is; if you know what operating systems a machine
632 ### runs, it's cleaner to make it explicit in the case statement
634 if test x"${opsys}" = x; then
635 case "${canonical}" in
636 *-gnu* ) opsys=gnu ;;
646 if test $unported = yes; then
647 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
648 Check `etc/MACHINES' for recognized configuration names.])
652 #### Choose a compiler.
654 dnl Sets GCC=yes if using gcc.
658 if test x$GCC = xyes; then
659 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
661 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
664 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
665 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
666 dnl that clash with MinGW.
667 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
669 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
670 # as we don't use them.
671 AC_DEFUN([gl_FCNTL_O_FLAGS])
672 # Avoid gnulib's threadlib module, as we do threads our own way.
673 AC_DEFUN([gl_THREADLIB])
675 # Initialize gnulib right after choosing the compiler.
676 dnl Amongst other things, this sets AR and ARFLAGS.
679 if test "$ac_test_CFLAGS" != set; then
680 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
681 # if -g3 works and the user does not specify CFLAGS.
682 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
685 emacs_g3_CFLAGS='-g3';;
687 emacs_g3_CFLAGS='-g3 -O2';;
691 if test -n "$emacs_g3_CFLAGS"; then
692 emacs_save_CFLAGS=$CFLAGS
693 CFLAGS=$emacs_g3_CFLAGS
694 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
695 [emacs_cv_prog_cc_g3],
696 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
697 [emacs_cv_prog_cc_g3=yes],
698 [emacs_cv_prog_cc_g3=no])])
699 if test $emacs_cv_prog_cc_g3 != yes; then
700 CFLAGS=$emacs_save_CFLAGS
702 if test $opsys = mingw32; then
703 CFLAGS="$CFLAGS -gdwarf-2"
710 # No optimization flag was inferred for this non-GCC compiler.
711 # Try -O. This is needed for xlc on AIX; see Bug#14258.
712 emacs_save_CFLAGS=$CFLAGS
713 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
715 AC_CACHE_CHECK([whether $CC accepts -O],
716 [emacs_cv_prog_cc_o],
717 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
718 [emacs_cv_prog_cc_o=yes],
719 [emacs_cv_prog_cc_o=no])])
720 if test $emacs_cv_prog_cc_o != yes; then
721 CFLAGS=$emacs_save_CFLAGS
726 AC_ARG_ENABLE([gcc-warnings],
727 [AS_HELP_STRING([--enable-gcc-warnings],
728 [turn on lots of GCC warnings/errors. This is intended for
729 developers, and may generate false alarms when used
730 with older or non-GNU development tools.])],
733 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
735 gl_gcc_warnings=$enableval],
739 AC_ARG_ENABLE(link-time-optimization,
740 [AS_HELP_STRING([--enable-link-time-optimization],
741 [build emacs with link-time optimization.
742 This is supported only for GCC since 4.5.0.])],
743 if test "${enableval}" != "no"; then
744 AC_MSG_CHECKING([whether link-time optimization is supported])
746 if test x$GCC = xyes; then
747 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
748 if test x$CPUS != x; then
754 CFLAGS="$CFLAGS $LTO"
755 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
756 [ac_lto_supported=yes], [ac_lto_supported=no])
759 AC_MSG_RESULT([$ac_lto_supported])
760 if test "$ac_lto_supported" = "yes"; then
761 CFLAGS="$CFLAGS $LTO"
765 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
766 # ------------------------------------------------
767 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
768 # Otherwise, run RUN-IF-NOT-FOUND.
769 AC_DEFUN([gl_GCC_VERSION_IFELSE],
773 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
776 # error "your version of gcc is older than $1.$2"
783 # When compiling with GCC, prefer -isystem to -I when including system
784 # include files, to avoid generating useless diagnostics for the files.
785 if test "$gl_gcc_warnings" != yes; then
790 # This, $nw, is the list of warnings we disable.
793 case $with_x_toolkit in
794 lucid | athena | motif)
795 # Old toolkits mishandle 'const'.
796 nw="$nw -Wwrite-strings"
799 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
802 AC_SUBST([WERROR_CFLAGS])
804 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
805 nw="$nw -Woverlength-strings" # Not a problem these days
806 nw="$nw -Wlogical-op" # any use of fwrite provokes this
807 nw="$nw -Wformat-nonliteral" # we do this a lot
808 nw="$nw -Wvla" # warnings in gettext.h
809 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
810 nw="$nw -Wswitch-default" # Too many warnings for now
811 nw="$nw -Winline" # OK to ignore 'inline'
812 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
813 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
814 # signed overflow has undefined behavior
815 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
816 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
817 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
819 # Emacs doesn't care about shadowing; see
820 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
823 # Emacs's use of alloca inhibits protecting the stack.
824 nw="$nw -Wstack-protector"
826 # The following line should be removable at some point.
827 nw="$nw -Wsuggest-attribute=pure"
829 # clang is unduly picky about some things.
830 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
837 [emacs_cv_clang=yes],
838 [emacs_cv_clang=no])])
839 if test $emacs_cv_clang = yes; then
840 nw="$nw -Wcast-align"
843 gl_MANYWARN_ALL_GCC([ws])
844 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
848 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
849 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
850 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
851 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
852 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
853 gl_WARN_ADD([-Wno-format-nonliteral])
855 # In spite of excluding -Wlogical-op above, it is enabled, as of
856 # gcc 4.5.0 20090517.
857 gl_WARN_ADD([-Wno-logical-op])
859 # More things that clang is unduly picky about.
860 if test $emacs_cv_clang = yes; then
861 gl_WARN_ADD([-Wno-format-extra-args])
862 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
863 gl_WARN_ADD([-Wno-unused-command-line-argument])
864 gl_WARN_ADD([-Wno-unused-value])
867 gl_WARN_ADD([-fdiagnostics-show-option])
868 gl_WARN_ADD([-funit-at-a-time])
870 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
871 AH_VERBATIM([FORTIFY_SOURCE],
872 [/* Enable compile-time and run-time bounds-checking, and some warnings,
873 without upsetting glibc 2.15+. */
874 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
875 # define _FORTIFY_SOURCE 2
878 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
880 # We use a slightly smaller set of warning options for lib/.
881 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
883 nw="$nw -Wunused-macros"
885 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
886 AC_SUBST([GNULIB_WARN_CFLAGS])
891 dnl Some other nice autoconf tests.
892 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
895 dnl if test "x$RANLIB" = x; then
900 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
901 dnl can be made to directories. This is not relevant for our usage, and
902 dnl excludes some cases that work fine for us. Eg MS Windows or files
903 dnl hosted on AFS, both examples where simple links work, but links to
904 dnl directories fail. We use a cut-down version instead.
907 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
908 rm -f conf$$ conf$$.file
910 LN_S_FILEONLY='cp -p'
912 if (echo >conf$$.file) 2>/dev/null; then
913 if ln -s conf$$.file conf$$ 2>/dev/null; then
914 LN_S_FILEONLY='ln -s'
915 elif ln conf$$.file conf$$ 2>/dev/null; then
920 rm -f conf$$ conf$$.file
922 if test "$LN_S_FILEONLY" = "ln -s"; then
925 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
928 AC_SUBST(LN_S_FILEONLY)
931 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
932 dnl doesn't support links to directories, as in "ln file dir". But that
933 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
934 dnl executables at "make install" time.
935 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
936 dnl for more details.
937 if test "$opsys" = "mingw32"; then
941 AC_PATH_PROG(INSTALL_INFO, install-info, :,
942 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
943 dnl Don't use GZIP, which is used by gzip for additional parameters.
944 AC_PATH_PROG(GZIP_PROG, gzip)
946 if test $opsys = gnu-linux; then
947 AC_PATH_PROG(PAXCTL, paxctl,,
948 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
949 if test "X$PAXCTL" != X; then
950 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
951 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
952 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
953 else AC_MSG_RESULT(no); PAXCTL=""; fi])
957 ## Need makeinfo >= 4.7 (?) to build the manuals.
958 AC_PATH_PROG(MAKEINFO, makeinfo, no)
959 dnl By this stage, configure has already checked for egrep and set EGREP,
960 dnl or exited with an error if no egrep was found.
961 if test "$MAKEINFO" != "no"; then
963 $MAKEINFO --version 2> /dev/null |
964 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
970 ## Makeinfo is unusual. For a released Emacs, the manuals are
971 ## pre-built, and not deleted by the normal clean rules. makeinfo is
972 ## therefore in the category of "special tools" not normally required, which
973 ## configure does not have to check for (eg autoconf itself).
974 ## In a Bazaar checkout on the other hand, the manuals are not included.
975 ## So makeinfo is a requirement to build from Bazaar, and configure
976 ## should test for it as it does for any other build requirement.
977 ## We use the presence of $srcdir/info/emacs to distinguish a release,
978 ## with pre-built manuals, from a Bazaar checkout.
981 if test "$MAKEINFO" = "no"; then
983 if test "x${with_makeinfo}" = "xno"; then
985 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
986 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
987 source tree does not seem to have pre-built manuals in the `info' directory.
988 Either install a suitable version of makeinfo, or re-run configure
989 with the `--without-makeinfo' option to build without the manuals.] )
992 AC_SUBST(HAVE_MAKEINFO)
994 dnl Just so that there is only a single place we need to edit.
1000 if test $opsys = mingw32; then
1001 DOCMISC_W32=efaq-w32
1005 AC_SUBST(DOCMISC_W32)
1007 dnl Add our options to ac_link now, after it is set up.
1009 if test x$GCC = xyes; then
1010 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1011 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1013 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1014 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1017 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1018 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1019 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1020 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1021 dnl if not built to support GNU ld.
1023 late_LDFLAGS=$LDFLAGS
1024 if test x$GCC = xyes; then
1025 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
1027 LDFLAGS="$LDFLAGS -znocombreloc"
1030 AC_MSG_CHECKING([for -znocombreloc])
1031 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1032 [AC_MSG_RESULT(yes)],
1033 LDFLAGS=$late_LDFLAGS
1034 [AC_MSG_RESULT(no)])
1037 dnl The function dump-emacs will not be defined and temacs will do
1038 dnl (load "loadup") automatically unless told otherwise.
1039 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1041 your-opsys-here) CANNOT_DUMP=yes ;;
1044 test "$CANNOT_DUMP" = "yes" && \
1045 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1047 AC_SUBST(CANNOT_DUMP)
1050 UNEXEC_OBJ=unexelf.o
1052 # MSDOS uses unexcoff.o
1054 UNEXEC_OBJ=unexaix.o
1060 UNEXEC_OBJ=unexmacosx.o
1063 UNEXEC_OBJ=unexhp9k800.o
1066 UNEXEC_OBJ=unexw32.o
1069 # Use the Solaris dldump() function, called from unexsol.c, to dump
1070 # emacs, instead of the generic ELF dump code found in unexelf.c.
1071 # The resulting binary has a complete symbol table, and is better
1072 # for debugging and other observability tools (debuggers, pstack, etc).
1074 # If you encounter a problem using dldump(), please consider sending
1075 # a message to the OpenSolaris tools-linking mailing list:
1076 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1078 # It is likely that dldump() works with older Solaris too, but this has
1079 # not been tested, so for now this change is for Solaris 10 or newer.
1080 UNEXEC_OBJ=unexsol.o
1087 ## Let `ld' find image libs and similar things in /usr/local/lib.
1088 ## The system compiler, GCC, has apparently been modified to not
1089 ## look there, contrary to what a stock GCC would do.
1090 ### It's not our place to do this. See bug#10313#17.
1091 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1096 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1097 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1101 ### It's not our place to do this. See bug#10313#17.
1102 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1107 ## Han Boetes <han@boetes.org> says this is necessary,
1108 ## otherwise Emacs dumps core on elf systems.
1109 LD_SWITCH_SYSTEM="-Z"
1112 AC_SUBST(LD_SWITCH_SYSTEM)
1114 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1116 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1117 ## which has not been defined yet. When this was handled with cpp,
1118 ## it was expanded to null when configure sourced the s/*.h file.
1119 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1120 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1121 ## (or somesuch), but because it is supposed to go at the _front_
1122 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1123 ## Compare with the gnu-linux case below, which added to the end
1124 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1125 ## LD_SWITCH_SYSTEM_TEMACS.
1128 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1135 AC_CHECK_DECL([__ELF__])
1136 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1137 ## With ELF, make sure that all common symbols get allocated to in the
1138 ## data section. Otherwise, the dump of temacs may miss variables in
1139 ## the shared library that have been initialized. For example, with
1140 ## GNU libc, __malloc_initialized would normally be resolved to the
1141 ## shared library's .bss section, which is fatal.
1142 if test "x$GCC" = "xyes"; then
1143 C_SWITCH_MACHINE="-fno-common"
1145 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1148 UNEXEC_OBJ=unexalpha.o
1152 AC_SUBST(C_SWITCH_MACHINE)
1154 AC_SUBST(UNEXEC_OBJ)
1157 ## Some programs in src produce warnings saying certain subprograms
1158 ## are too complex and need a MAXMEM value greater than 2000 for
1159 ## additional optimization. --nils@exp-math.uni-essen.de
1160 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1161 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1162 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1163 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1164 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1165 AC_SUBST(C_SWITCH_SYSTEM)
1170 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1171 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1173 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1175 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1177 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1179 ## Motif needs -lgen.
1180 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1183 AC_SUBST(LIBS_SYSTEM)
1185 ### Make sure subsequent tests use flags consistent with the build flags.
1187 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1188 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1190 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1193 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1194 AC_DEFUN([AC_TYPE_SIZE_T])
1195 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1196 AC_DEFUN([AC_TYPE_UID_T])
1200 dnl Current possibilities handled by sed (aix4-2 -> aix,
1201 dnl gnu-linux -> gnu/linux, etc.):
1202 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1203 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1204 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1211 ## Adding -lm confuses the dynamic linker, so omit it.
1214 freebsd | dragonfly )
1215 SYSTEM_TYPE=berkeley-unix
1217 gnu-linux | gnu-kfreebsd )
1219 hpux10-20 | hpux11 )
1223 SYSTEM_TYPE=windows-nt
1225 dnl NB this may be adjusted below.
1227 SYSTEM_TYPE=berkeley-unix
1231 SYSTEM_TYPE=usg-unix-v
1237 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1238 [The type of system you are compiling for; sets `system-type'.])
1241 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1242 pre_PKG_CONFIG_LIBS=$LIBS
1244 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1246 dnl This function definition taken from Gnome 2.0
1247 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1248 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1249 dnl also defines GSTUFF_PKG_ERRORS on error
1250 AC_DEFUN([PKG_CHECK_MODULES], [
1253 if test "$PKG_CONFIG" = "no" ; then
1254 ifelse([$4], , [AC_MSG_ERROR([
1255 *** 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])
1257 PKG_CONFIG_MIN_VERSION=0.9.0
1258 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1259 AC_MSG_CHECKING(for $2)
1261 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1262 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1263 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1270 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1271 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1272 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1278 ## If we have a custom action on failure, don't print errors, but
1279 ## do set a variable so people can do so. Do it in a subshell
1280 ## to capture any diagnostics in invoking pkg-config.
1281 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1282 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1288 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1289 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1293 if test $succeeded = yes; then
1294 ifelse([$3], , :, [$3])
1296 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.])], [$4])
1301 if test "${with_sound}" != "no"; then
1302 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1303 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1304 have_sound_header=yes, [], [
1306 #define WIN32_LEAN_AND_MEAN
1307 #include <windows.h>
1310 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1311 AC_MSG_ERROR([OSS sound support requested but not found.])
1313 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1314 # Emulation library used on NetBSD.
1315 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1316 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1317 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1318 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1319 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1323 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1325 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1326 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1327 if test $HAVE_ALSA = yes; then
1328 SAVE_CFLAGS="$CFLAGS"
1330 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1331 LIBS="$ALSA_LIBS $LIBS"
1332 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1333 emacs_alsa_normal=yes,
1334 emacs_alsa_normal=no)
1335 if test "$emacs_alsa_normal" != yes; then
1336 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1337 [[snd_lib_error_set_handler (0);]])],
1338 emacs_alsa_subdir=yes,
1339 emacs_alsa_subdir=no)
1340 if test "$emacs_alsa_subdir" != yes; then
1341 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1343 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1346 CFLAGS="$SAVE_CFLAGS"
1348 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1349 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1350 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1351 elif test "${with_sound}" = "alsa"; then
1352 AC_MSG_ERROR([ALSA sound support requested but not found.])
1354 fi dnl with_sound = alsa|yes
1356 dnl Define HAVE_SOUND if we have sound support. We know it works and
1357 dnl compiles only on the specified platforms. For others, it
1358 dnl probably doesn't make sense to try.
1359 dnl FIXME So surely we should bypass this whole section if not using
1360 dnl one of these platforms?
1361 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1363 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1364 dnl Adjust the --with-sound help text if you change this.
1365 gnu-linux|freebsd|netbsd|mingw32)
1366 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1372 AC_SUBST(CFLAGS_SOUND)
1375 dnl checks for header files
1376 AC_CHECK_HEADERS_ONCE(
1380 sys/utsname.h pwd.h utmp.h util.h)
1382 AC_MSG_CHECKING(if personality LINUX32 can be set)
1383 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1384 emacs_cv_personality_linux32=yes,
1385 emacs_cv_personality_linux32=no)
1386 AC_MSG_RESULT($emacs_cv_personality_linux32)
1388 if test $emacs_cv_personality_linux32 = yes; then
1389 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1390 [Define to 1 if personality LINUX32 can be set.])
1393 dnl On Solaris 8 there's a compilation warning for term.h because
1394 dnl it doesn't define `bool'.
1395 AC_CHECK_HEADERS(term.h, , , -)
1397 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1399 if test $ac_cv_have_decl_sys_siglist != yes; then
1400 # For Tru64, at least:
1401 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1406 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1407 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1408 #if HAVE_SYS_SOCKET_H
1409 #include <sys/socket.h>
1411 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1412 #if HAVE_SYS_SOCKET_H
1413 #include <sys/socket.h>
1415 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1416 #if HAVE_SYS_SOCKET_H
1417 #include <sys/socket.h>
1420 dnl checks for structure members
1421 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1422 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1423 struct ifreq.ifr_addr,
1424 struct ifreq.ifr_addr.sa_len], , ,
1425 [AC_INCLUDES_DEFAULT
1426 #if HAVE_SYS_SOCKET_H
1427 #include <sys/socket.h>
1433 dnl Check for endianness.
1434 dnl AC_C_BIGENDIAN is done by gnulib.
1436 dnl check for Make feature
1437 dnl AC_PROG_MAKE_SET is done by Automake.
1442 dnl check for GNU Make if we have GCC and autodepend is on.
1443 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1444 AC_MSG_CHECKING([whether we are using GNU Make])
1446 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1447 if test "x$testval" != x; then
1450 ac_enable_autodepend=no
1452 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1453 if test $HAVE_GNU_MAKE = yes; then
1454 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1455 SAVE_CFLAGS="$CFLAGS"
1456 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1457 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1458 CFLAGS="$SAVE_CFLAGS"
1459 test -f deps.d || ac_enable_autodepend=no
1461 AC_MSG_RESULT([$ac_enable_autodepend])
1463 if test $ac_enable_autodepend = yes; then
1464 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1465 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1466 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1467 deps_frag=autodeps.mk
1470 deps_frag=$srcdir/src/$deps_frag
1473 AC_SUBST_FILE(deps_frag)
1476 lisp_frag=$srcdir/src/lisp.mk
1477 AC_SUBST_FILE(lisp_frag)
1480 dnl checks for operating system services
1481 AC_SYS_LONG_FILE_NAMES
1483 #### Choose a window system.
1485 ## We leave window_system equal to none if
1486 ## we end up building without one. Any new window system should
1487 ## set window_system to an appropriate value and add objects to
1488 ## window-system-specific substs.
1492 if test "$no_x" != yes; then
1496 LD_SWITCH_X_SITE_RPATH=
1497 if test "${x_libraries}" != NONE; then
1498 if test -n "${x_libraries}"; then
1499 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1500 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1502 x_default_search_path=""
1503 x_search_path=${x_libraries}
1504 if test -z "${x_search_path}"; then
1505 x_search_path=/usr/lib
1507 for x_library in `echo ${x_search_path}: | \
1508 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1510 ${x_library}/X11/%L/%T/%N%C%S:\
1511 ${x_library}/X11/%l/%T/%N%C%S:\
1512 ${x_library}/X11/%T/%N%C%S:\
1513 ${x_library}/X11/%L/%T/%N%S:\
1514 ${x_library}/X11/%l/%T/%N%S:\
1515 ${x_library}/X11/%T/%N%S"
1516 if test x"${x_default_search_path}" = x; then
1517 x_default_search_path=${x_search_path}
1519 x_default_search_path="${x_search_path}:${x_default_search_path}"
1523 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1525 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1526 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1529 if test x"${x_includes}" = x; then
1530 bitmapdir=/usr/include/X11/bitmaps
1532 # accumulate include directories that have X11 bitmap subdirectories
1534 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1535 if test -d "${bmd}/X11/bitmaps"; then
1536 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1538 if test -d "${bmd}/bitmaps"; then
1539 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1542 if test ${bmd_acc} != "dummyval"; then
1543 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1550 tmp_CPPFLAGS="$CPPFLAGS"
1551 tmp_CFLAGS="$CFLAGS"
1552 CPPFLAGS="$CPPFLAGS -x objective-c"
1553 CFLAGS="$CFLAGS -x objective-c"
1556 if test "${with_ns}" != no; then
1557 if test "${opsys}" = darwin; then
1559 ns_appdir=`pwd`/nextstep/Emacs.app
1560 ns_appbindir=${ns_appdir}/Contents/MacOS
1561 ns_appresdir=${ns_appdir}/Contents/Resources
1562 ns_appsrc=Cocoa/Emacs.base
1563 elif test -f $GNUSTEP_CONFIG_FILE; then
1565 ns_appdir=`pwd`/nextstep/Emacs.app
1566 ns_appbindir=${ns_appdir}
1567 ns_appresdir=${ns_appdir}/Resources
1568 ns_appsrc=GNUstep/Emacs.base
1569 dnl FIXME sourcing this several times in subshells seems inefficient.
1570 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1571 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1572 dnl I seemed to need these as well with GNUstep-startup 0.25.
1573 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1574 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1575 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1576 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1577 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1578 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1579 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1580 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1581 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1582 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1583 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1584 dnl If they had chosen to either define it or not, we could have
1585 dnl just used AC_CHECK_DECL here.
1586 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1587 emacs_cv_objc_exceptions,
1588 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1589 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1593 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1594 if test $emacs_cv_objc_exceptions = yes; then
1595 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1596 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1597 [Define if GNUstep uses ObjC exceptions.])
1598 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1602 dnl This is only used while we test the NS headers, it gets reset below.
1603 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1605 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1606 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1607 files are missing or cannot be compiled.])])
1609 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1611 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1612 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1615 #error "OSX 10.4 or newer required"
1619 ns_osx_have_104=yes,
1621 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1623 ns_have_nsinteger=yes,
1624 ns_have_nsinteger=no)
1625 if test $ns_osx_have_104 = no; then
1626 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1628 if test $ns_have_nsinteger = yes; then
1629 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1633 AC_SUBST(LIBS_GNUSTEP)
1635 INSTALL_ARCH_INDEP_EXTRA=install-etc
1636 ns_self_contained=no
1639 if test "${HAVE_NS}" = yes; then
1640 if test "$with_toolkit_scroll_bars" = "no"; then
1641 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1644 window_system=nextstep
1645 # set up packaging dirs
1646 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1647 ns_self_contained=yes
1648 prefix=${ns_appresdir}
1649 exec_prefix=${ns_appbindir}
1650 dnl This one isn't really used, only archlibdir is.
1651 libexecdir="\${ns_appbindir}/libexec"
1652 archlibdir="\${ns_appbindir}/libexec"
1653 etcdocdir="\${ns_appresdir}/etc"
1654 etcdir="\${ns_appresdir}/etc"
1655 dnl FIXME maybe set datarootdir instead.
1656 dnl That would also get applications, icons, man.
1657 infodir="\${ns_appresdir}/info"
1658 mandir="\${ns_appresdir}/man"
1659 lispdir="\${ns_appresdir}/lisp"
1660 leimdir="\${ns_appresdir}/leim"
1661 INSTALL_ARCH_INDEP_EXTRA=
1663 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1665 CFLAGS="$tmp_CFLAGS"
1666 CPPFLAGS="$tmp_CPPFLAGS"
1667 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1668 AC_SUBST(ns_self_contained)
1670 AC_SUBST(NS_OBJC_OBJ)
1681 if test "${with_w32}" != no; then
1684 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1685 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1686 cannot be found.])])
1689 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1692 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1697 if test "${opsys}" = "mingw32"; then
1698 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1699 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1700 #include <windows.h>
1701 #include <usp10.h>]],
1702 [[PIMAGE_NT_HEADERS pHeader;
1703 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1704 [emacs_cv_w32api=yes
1707 AC_MSG_RESULT($emacs_cv_w32api)
1708 if test "${emacs_cv_w32api}" = "no"; then
1709 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1720 if test "${HAVE_W32}" = "yes"; then
1721 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1722 AC_CHECK_TOOL(WINDRES, [windres],
1723 [AC_MSG_ERROR([No resource compiler found.])])
1724 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1725 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1726 EMACSRES="emacs.res"
1727 case "$canonical" in
1728 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1729 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1731 UPDATE_MANIFEST=update-game-score.exe.manifest
1732 if test "${opsys}" = "cygwin"; then
1733 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1734 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1735 # Tell the linker that emacs.res is an object (which we compile from
1736 # the rc file), not a linker script.
1737 W32_RES_LINK="-Wl,emacs.res"
1739 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1740 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1741 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1742 W32_RES_LINK="\$(EMACSRES)"
1743 CLIENTRES="emacsclient.res"
1744 CLIENTW="emacsclientw\$(EXEEXT)"
1745 FIRSTFILE_OBJ=firstfile.o
1748 LIBS_ECLIENT="-lcomctl32"
1749 LIB_WSOCK32="-lwsock32"
1750 NTLIB="ntlib.$ac_objext"
1751 XARGS_LIMIT="-s 10000"
1757 AC_SUBST(EMACS_MANIFEST)
1758 AC_SUBST(UPDATE_MANIFEST)
1761 AC_SUBST(W32_RES_LINK)
1762 AC_SUBST(FIRSTFILE_OBJ)
1765 AC_SUBST(LIBS_ECLIENT)
1766 AC_SUBST(LIB_WSOCK32)
1768 AC_SUBST(XARGS_LIMIT)
1770 if test "${HAVE_W32}" = "yes"; then
1775 ## $window_system is now set to the window system we will
1783 case "${window_system}" in
1788 case "${with_x_toolkit}" in
1789 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1790 motif ) USE_X_TOOLKIT=MOTIF ;;
1792 term_header=gtkutil.h
1793 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1794 dnl USE_X_TOOLKIT is set.
1795 USE_X_TOOLKIT=none ;;
1796 gtk2 ) with_gtk2=yes
1797 term_header=gtkutil.h
1798 USE_X_TOOLKIT=none ;;
1799 gtk3 ) with_gtk3=yes
1800 term_header=gtkutil.h
1801 USE_X_TOOLKIT=none ;;
1802 no ) USE_X_TOOLKIT=none ;;
1803 dnl If user did not say whether to use a toolkit, make this decision later:
1804 dnl use the toolkit if we have gtk, or X11R5 or newer.
1805 * ) USE_X_TOOLKIT=maybe ;;
1809 term_header=nsterm.h
1812 term_header=w32term.h
1816 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1817 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1818 if test "$HAVE_XSERVER" = true ||
1819 test -n "$DISPLAY" ||
1820 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1821 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1822 were found. You should install the relevant development files for X
1823 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1824 sure you have development files for image handling, i.e.
1825 tiff, gif, jpeg, png and xpm.
1826 If you are sure you want Emacs compiled without X window support, pass
1832 ### If we're using X11, we should use the X menu package.
1835 yes ) HAVE_MENUS=yes ;;
1838 # Does the opsystem file prohibit the use of the GNU malloc?
1839 # Assume not, until told otherwise.
1843 [whether malloc is Doug Lea style],
1844 [emacs_cv_var_doug_lea_malloc],
1847 [[#include <malloc.h>
1848 static void hook (void) {}]],
1849 [[malloc_set_state (malloc_get_state ());
1850 __after_morecore_hook = hook;
1851 __malloc_initialize_hook = hook;]])],
1852 [emacs_cv_var_doug_lea_malloc=yes],
1853 [emacs_cv_var_doug_lea_malloc=no])])
1854 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1857 dnl See comments in aix4-2.h about maybe using system malloc there.
1860 ## darwin ld insists on the use of malloc routines in the System framework.
1861 darwin|sol2-10) system_malloc=yes ;;
1864 if test "${system_malloc}" = "yes"; then
1865 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1868 (The GNU allocators don't work with this system configuration.)"
1872 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1873 VMLIMIT_OBJ=vm-limit.o
1875 AC_CHECK_HEADERS([sys/vlimit.h])
1876 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1879 [[extern char data_start[]; char ch;]],
1880 [[return data_start < &ch;]])],
1881 [emacs_cv_data_start=yes],
1882 [emacs_cv_data_start=no])])
1883 if test $emacs_cv_data_start = yes; then
1884 AC_DEFINE([HAVE_DATA_START], 1,
1885 [Define to 1 if data_start is the address of the start
1886 of the main data segment.])
1889 AC_SUBST(GMALLOC_OBJ)
1890 AC_SUBST(VMLIMIT_OBJ)
1892 if test "$doug_lea_malloc" = "yes" ; then
1893 if test "$GNU_MALLOC" = yes ; then
1895 (Using Doug Lea's new malloc from the GNU C Library.)"
1897 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1898 [Define to 1 if you are using the GNU C Library.])
1900 ## Use mmap directly for allocating larger buffers.
1901 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1902 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1903 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1905 gnu*) REL_ALLOC=no ;;
1909 if test x"${REL_ALLOC}" = x; then
1910 REL_ALLOC=${GNU_MALLOC}
1913 use_mmap_for_buffers=no
1915 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1919 if test $use_mmap_for_buffers = yes; then
1920 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1924 LIBS="$LIBS_SYSTEM $LIBS"
1926 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1927 AC_CHECK_LIB(dnet, dnet_ntoa)
1928 dnl This causes -lresolv to get used in subsequent tests,
1929 dnl which causes failures on some systems such as HPUX 9.
1930 dnl AC_CHECK_LIB(resolv, gethostbyname)
1932 dnl FIXME replace main with a function we actually want from this library.
1933 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1935 dnl Check if pthreads is available.
1937 AC_CHECK_HEADERS_ONCE(pthread.h)
1938 if test "$ac_cv_header_pthread_h"; then
1939 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1940 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1941 dnl testing for pthread_self if Emacs uses gmalloc.c.
1942 if test "$GMALLOC_OBJ" = gmalloc.o; then
1943 emacs_pthread_function=pthread_atfork
1945 emacs_pthread_function=pthread_self
1947 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1949 if test "$HAVE_PTHREAD" = yes; then
1950 case "${canonical}" in
1952 *) LIB_PTHREAD="-lpthread"
1953 LIBS="$LIB_PTHREAD $LIBS" ;;
1955 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1957 AC_SUBST([LIB_PTHREAD])
1959 AC_CHECK_LIB(pthreads, cma_open)
1961 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1962 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1963 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1964 ## added to LIBS in configure would never contain the pthreads part,
1965 ## but the value used in Makefiles might. FIXME?
1967 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1968 ## be harmless on older versions of X where it happens to exist.
1969 test "$opsys" = "aix4-2" && \
1970 test $ac_cv_lib_pthreads_cma_open = yes && \
1971 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1973 dnl Check for need for bigtoc support on IBM AIX
1977 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1979 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1980 *) gdb_cv_bigtoc=-bbigtoc ;;
1983 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1984 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1989 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1990 # used for the tests that follow. We set them back to REAL_CFLAGS and
1991 # REAL_CPPFLAGS later on.
1993 REAL_CFLAGS="$CFLAGS"
1994 REAL_CPPFLAGS="$CPPFLAGS"
1996 if test "${HAVE_X11}" = "yes"; then
1997 DEFS="$C_SWITCH_X_SITE $DEFS"
1998 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2000 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2001 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2003 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2004 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2005 # but it's more convenient here to set LD_RUN_PATH since this
2006 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2007 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2008 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2012 if test "${opsys}" = "gnu-linux"; then
2013 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2014 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2015 [[XOpenDisplay ("foo");]])],
2016 [xgnu_linux_first_failure=no],
2017 [xgnu_linux_first_failure=yes])
2018 if test "${xgnu_linux_first_failure}" = "yes"; then
2019 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2020 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2021 OLD_CPPFLAGS="$CPPFLAGS"
2023 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2024 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2025 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2026 LIBS="$LIBS -b i486-linuxaout"
2027 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2028 [[XOpenDisplay ("foo");]])],
2029 [xgnu_linux_second_failure=no],
2030 [xgnu_linux_second_failure=yes])
2031 if test "${xgnu_linux_second_failure}" = "yes"; then
2032 # If we get the same failure with -b, there is no use adding -b.
2033 # So take it out. This plays safe.
2034 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2035 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2036 CPPFLAGS="$OLD_CPPFLAGS"
2047 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2048 # header files included from there.
2049 AC_MSG_CHECKING(for Xkb)
2050 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2051 #include <X11/XKBlib.h>]],
2052 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2053 emacs_xkb=yes, emacs_xkb=no)
2054 AC_MSG_RESULT($emacs_xkb)
2055 if test $emacs_xkb = yes; then
2056 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2059 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2060 XScreenNumberOfScreen)
2063 if test "${window_system}" = "x11"; then
2064 AC_MSG_CHECKING(X11 version 6)
2065 AC_CACHE_VAL(emacs_cv_x11_version_6,
2066 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2067 [[#if XlibSpecificationRelease < 6
2070 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2071 if test $emacs_cv_x11_version_6 = yes; then
2072 AC_MSG_RESULT(6 or newer)
2073 AC_DEFINE(HAVE_X11R6, 1,
2074 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2075 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2076 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2080 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2081 [Define if you have usable X11R6-style XIM support.])
2085 AC_MSG_RESULT(before 6)
2090 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2092 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2093 if test "${with_rsvg}" != "no"; then
2094 RSVG_REQUIRED=2.11.0
2095 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2097 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2098 AC_SUBST(RSVG_CFLAGS)
2101 if test $HAVE_RSVG = yes; then
2102 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2103 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2104 LIBS="$RSVG_LIBS $LIBS"
2110 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2111 if test "${with_imagemagick}" != "no"; then
2112 ## 6.2.8 is the earliest version known to work, but earlier versions
2113 ## might work - let us know if you find one.
2114 ## 6.0.7 does not work. See bug#7955.
2115 ## 6.8.2 makes Emacs crash; see Bug#13867.
2116 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2117 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2118 AC_SUBST(IMAGEMAGICK_CFLAGS)
2119 AC_SUBST(IMAGEMAGICK_LIBS)
2121 if test $HAVE_IMAGEMAGICK = yes; then
2122 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2123 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2124 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2125 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2133 gtk_term_header=$term_header
2136 if test "${opsys}" != "mingw32"; then
2137 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2140 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2142 dnl Checks for libraries.
2143 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2144 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2145 AC_MSG_ERROR($GTK_PKG_ERRORS)
2147 if test "$pkg_check_gtk" = "yes"; then
2148 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2149 GTK_OBJ=emacsgtkfixed.o
2150 gtk_term_header=gtkutil.h
2151 USE_GTK_TOOLKIT="GTK3"
2152 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2153 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2154 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2158 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2162 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2165 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2167 dnl Checks for libraries.
2168 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2169 if test "$pkg_check_gtk" = "no" &&
2170 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2172 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2174 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2178 if test x"$pkg_check_gtk" = xyes; then
2180 AC_SUBST(GTK_CFLAGS)
2182 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2183 CFLAGS="$CFLAGS $GTK_CFLAGS"
2184 LIBS="$GTK_LIBS $LIBS"
2185 dnl Try to compile a simple GTK program.
2186 AC_MSG_CHECKING([whether GTK compiles])
2190 [[/* Check the Gtk and Glib APIs. */
2191 #include <gtk/gtk.h>
2192 #include <glib-object.h>
2194 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2198 GtkSettings *gs = 0;
2199 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2200 strict C prohibits this. Use gtk_main_iteration to test that the
2201 libraries are there. */
2202 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2203 0, 0, 0, G_CALLBACK (callback), 0))
2204 gtk_main_iteration ();
2207 AC_MSG_RESULT([$GTK_COMPILES])
2208 if test "${GTK_COMPILES}" != "yes"; then
2210 if test "$USE_X_TOOLKIT" != "maybe"; then
2211 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2215 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2216 GTK_OBJ="gtkutil.o $GTK_OBJ"
2217 term_header=$gtk_term_header
2219 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2222 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2223 closing open displays. This is no problem if you just use
2224 one display, but if you use more than one and close one of them
2234 if test "${HAVE_GTK}" = "yes"; then
2236 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2237 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2238 if test "$with_toolkit_scroll_bars" != no; then
2239 with_toolkit_scroll_bars=yes
2242 dnl Check if we have the old file selection dialog declared and
2243 dnl in the link library. In 2.x it may be in the library,
2244 dnl but not declared if deprecated featured has been selected out.
2245 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2246 HAVE_GTK_FILE_SELECTION=no
2247 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2248 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2249 #include <gtk/gtk.h>])
2250 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2251 AC_CHECK_FUNCS(gtk_file_selection_new)
2254 dnl Same as above for gtk_handle_box.
2255 HAVE_GTK_HANDLE_BOX=no
2256 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2257 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2258 #include <gtk/gtk.h>])
2259 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2260 AC_CHECK_FUNCS(gtk_handle_box_new)
2263 dnl Same as above for gtk_tearoff_menu_item.
2264 HAVE_GTK_TEAROFF_MENU_ITEM=no
2265 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2266 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2267 #include <gtk/gtk.h>])
2268 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2269 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2272 dnl Check for functions introduced in 2.14 and later.
2273 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2274 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2275 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2276 gtk_orientable_set_orientation \
2277 gtk_window_set_has_resize_grip)
2279 term_header=gtkutil.h
2282 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2283 dnl other platforms.
2286 if test "${with_dbus}" = "yes"; then
2287 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2288 if test "$HAVE_DBUS" = yes; then
2289 LIBS="$LIBS $DBUS_LIBS"
2290 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2291 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2292 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2294 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2295 dbus_type_is_valid \
2296 dbus_validate_bus_name \
2297 dbus_validate_path \
2298 dbus_validate_interface \
2299 dbus_validate_member)
2305 dnl GSettings has been tested under GNU/Linux only.
2307 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2308 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2309 if test "$HAVE_GSETTINGS" = "yes"; then
2310 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2311 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2312 SETTINGS_LIBS="$GSETTINGS_LIBS"
2316 dnl GConf has been tested under GNU/Linux only.
2317 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2319 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2320 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2321 if test "$HAVE_GCONF" = yes; then
2322 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2323 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2324 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2325 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2329 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2330 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2331 if test "$HAVE_GOBJECT" = "yes"; then
2332 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2333 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2335 SAVE_CFLAGS="$CFLAGS"
2337 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2338 LIBS="$SETTINGS_LIBS $LIBS"
2339 AC_CHECK_FUNCS([g_type_init])
2340 CFLAGS="$SAVE_CFLAGS"
2343 AC_SUBST(SETTINGS_CFLAGS)
2344 AC_SUBST(SETTINGS_LIBS)
2347 dnl SELinux is available for GNU/Linux only.
2350 if test "${with_selinux}" = "yes"; then
2351 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2352 if test "$HAVE_LIBSELINUX" = yes; then
2353 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2354 LIBSELINUX_LIBS=-lselinux
2357 AC_SUBST(LIBSELINUX_LIBS)
2360 if test "${with_gnutls}" = "yes" ; then
2361 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2362 if test "${HAVE_GNUTLS}" = "yes"; then
2363 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2366 # Windows loads GnuTLS dynamically
2367 if test "${opsys}" = "mingw32"; then
2370 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2371 LIBS="$LIBGNUTLS_LIBS $LIBS"
2375 AC_SUBST(LIBGNUTLS_LIBS)
2376 AC_SUBST(LIBGNUTLS_CFLAGS)
2381 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2382 dnl a particular library. This doesn't make much sense?
2383 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2384 with_file_notification=no
2387 dnl MS Windows native file monitor is available for mingw32 only.
2388 case $with_file_notification,$opsys in
2389 w32,* | yes,mingw32)
2390 AC_CHECK_HEADER(windows.h)
2391 if test "$ac_cv_header_windows_h" = yes ; then
2392 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2393 NOTIFY_OBJ=w32notify.o
2394 NOTIFY_SUMMARY="yes (w32)"
2398 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2399 dnl has been added in glib 2.24. It has been tested under
2400 dnl GNU/Linux only. We take precedence over inotify, but this makes
2401 dnl only sense when glib has been compiled with inotify support. How
2403 case $with_file_notification,$NOTIFY_OBJ in
2405 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2406 if test "$HAVE_GFILENOTIFY" = "yes"; then
2407 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2408 NOTIFY_OBJ=gfilenotify.o
2409 NOTIFY_SUMMARY="yes -lgio (gfile)"
2413 dnl inotify is only available on GNU/Linux.
2414 case $with_file_notification,$NOTIFY_OBJ in
2416 AC_CHECK_HEADER(sys/inotify.h)
2417 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2418 AC_CHECK_FUNC(inotify_init1)
2419 if test "$ac_cv_func_inotify_init1" = yes; then
2420 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2421 NOTIFY_OBJ=inotify.o
2422 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2427 case $with_file_notification,$NOTIFY_OBJ in
2428 yes,* | no,* | *,?*) ;;
2429 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2432 if test -n "$NOTIFY_OBJ"; then
2433 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2435 AC_SUBST(NOTIFY_OBJ)
2436 AC_SUBST(GFILENOTIFY_CFLAGS)
2437 AC_SUBST(GFILENOTIFY_LIBS)
2439 dnl Do not put whitespace before the #include statements below.
2440 dnl Older compilers (eg sunos4 cc) choke on it.
2443 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2444 if test "$with_xaw3d" != no; then
2445 AC_CACHE_VAL(emacs_cv_xaw3d,
2446 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2447 #include <X11/Intrinsic.h>
2448 #include <X11/Xaw3d/Simple.h>]],
2450 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2451 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2452 emacs_cv_xaw3d=no)])
2456 if test $emacs_cv_xaw3d = yes; then
2457 AC_MSG_CHECKING(for xaw3d)
2458 AC_MSG_RESULT([yes; using Lucid toolkit])
2462 AC_DEFINE(HAVE_XAW3D, 1,
2463 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2465 AC_MSG_CHECKING(for xaw3d)
2467 AC_MSG_CHECKING(for libXaw)
2468 AC_CACHE_VAL(emacs_cv_xaw,
2469 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2470 #include <X11/Intrinsic.h>
2471 #include <X11/Xaw/Simple.h>]],
2475 if test $emacs_cv_xaw = yes; then
2476 AC_MSG_RESULT([yes; using Lucid toolkit])
2479 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2480 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2482 AC_MSG_ERROR([No X toolkit could be found.
2483 If you are sure you want Emacs compiled without an X toolkit, pass
2485 to configure. Otherwise, install the development libraries for the toolkit
2486 that you want to use (e.g. Gtk+) and re-run configure.])
2491 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2494 if test "${USE_X_TOOLKIT}" != "none"; then
2495 AC_MSG_CHECKING(X11 toolkit version)
2496 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2497 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2498 [[#if XtSpecificationRelease < 6
2501 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2502 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2503 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2504 AC_MSG_RESULT(6 or newer)
2505 AC_DEFINE(HAVE_X11XTR6, 1,
2506 [Define to 1 if you have the X11R6 or newer version of Xt.])
2507 LIBXTR6="-lSM -lICE"
2509 ## Use libw.a along with X11R6 Xt.
2510 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2513 AC_MSG_RESULT(before 6)
2516 dnl If using toolkit, check whether libXmu.a exists.
2517 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2519 if test x$HAVE_X11XTR6 = xyes; then
2520 LIBS="-lXt -lSM -lICE $LIBS"
2524 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2525 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2526 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2530 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2531 dnl Why not just test for libxmu in the normal way?
2534 ## These systems don't supply Xmu.
2536 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2544 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2545 if test "${HAVE_X11}" = "yes"; then
2546 if test "${USE_X_TOOLKIT}" != "none"; then
2547 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2552 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2553 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2554 if test -d /usr/include/openmotif; then
2555 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2556 emacs_cv_openmotif=yes
2557 case "$canonical" in
2558 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2559 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2562 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2565 emacs_cv_openmotif=no
2567 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2568 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2569 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2572 Motif version prior to 2.1.
2574 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2575 if test $emacs_cv_motif_version_2_1 = yes; then
2576 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2577 if test x$emacs_cv_openmotif = xyes; then
2578 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2581 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2582 # We put this in CFLAGS temporarily to precede other -I options
2583 # that might be in CFLAGS temporarily.
2584 # We put this in CPPFLAGS where it precedes the other -I options.
2585 OLD_CPPFLAGS=$CPPFLAGS
2587 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2588 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2589 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2591 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2592 if test $emacs_cv_lesstif = yes; then
2593 # Make sure this -I option remains in CPPFLAGS after it is set
2594 # back to REAL_CPPFLAGS.
2595 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2596 # have those other -I options anyway. Ultimately, having this
2597 # directory ultimately in CPPFLAGS will be enough.
2598 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2599 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2602 CPPFLAGS=$OLD_CPPFLAGS
2605 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2606 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2609 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2610 dnl using Motif or Xaw3d is available, and unless
2611 dnl --with-toolkit-scroll-bars=no was specified.
2613 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2614 [Define to 1 if we should use toolkit scroll bars.])dnl
2615 USE_TOOLKIT_SCROLL_BARS=no
2616 if test "${with_toolkit_scroll_bars}" != "no"; then
2617 if test "${USE_X_TOOLKIT}" != "none"; then
2618 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2619 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2621 USE_TOOLKIT_SCROLL_BARS=yes
2622 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2623 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2624 USE_TOOLKIT_SCROLL_BARS=yes
2626 elif test "${HAVE_GTK}" = "yes"; then
2627 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2628 USE_TOOLKIT_SCROLL_BARS=yes
2629 elif test "${HAVE_NS}" = "yes"; then
2630 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2631 USE_TOOLKIT_SCROLL_BARS=yes
2632 elif test "${HAVE_W32}" = "yes"; then
2633 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2634 USE_TOOLKIT_SCROLL_BARS=yes
2638 dnl See if XIM is available.
2639 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2640 #include <X11/Xlib.h>
2641 #include <X11/Xresource.h>]],
2642 [[XIMProc callback;]])],
2644 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2647 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2649 if test "${with_xim}" != "no"; then
2650 AC_DEFINE(USE_XIM, 1,
2651 [Define to 1 if we should use XIM, if it is available.])
2655 if test "${HAVE_XIM}" != "no"; then
2657 if test "$GCC" = yes; then
2658 CFLAGS="$CFLAGS --pedantic-errors"
2660 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2661 #include <X11/Xlib.h>
2662 #include <X11/Xresource.h>]],
2668 XPointer *client_data;
2670 /* If we're not using GCC, it's probably not XFree86, and this is
2671 probably right, but we can't use something like --pedantic-errors. */
2672 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2673 char*, XIMProc, XPointer*);
2675 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2677 [emacs_cv_arg6_star=yes])
2678 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2679 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2680 either XPointer or XPointer*.])dnl
2681 if test "$emacs_cv_arg6_star" = yes; then
2682 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2684 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2689 ### Start of font-backend (under any platform) section.
2690 # (nothing here yet -- this is a placeholder)
2691 ### End of font-backend (under any platform) section.
2693 ### Start of font-backend (under X11) section.
2694 if test "${HAVE_X11}" = "yes"; then
2695 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2697 ## Use -lXft if available, unless `--with-xft=no'.
2699 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2702 if test "x${with_xft}" != "xno"; then
2704 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2705 ## Because xftfont.c uses XRenderQueryExtension, we also
2706 ## need to link to -lXrender.
2708 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2709 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2710 OLD_CPPFLAGS="$CPPFLAGS"
2711 OLD_CFLAGS="$CFLAGS"
2713 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2714 CFLAGS="$CFLAGS $XFT_CFLAGS"
2715 XFT_LIBS="-lXrender $XFT_LIBS"
2716 LIBS="$XFT_LIBS $LIBS"
2717 AC_CHECK_HEADER(X11/Xft/Xft.h,
2718 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2719 [[#include <X11/X.h>]])
2721 if test "${HAVE_XFT}" = "yes"; then
2722 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2724 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2726 CPPFLAGS="$OLD_CPPFLAGS"
2727 CFLAGS="$OLD_CFLAGS"
2729 fi # "${HAVE_XFT}" = "yes"
2730 fi # "$HAVE_XFT" != no
2731 fi # "x${with_xft}" != "xno"
2733 ## We used to allow building with FreeType and without Xft.
2734 ## However, the ftx font backend driver is not in good shape.
2735 if test "$HAVE_XFT" != "yes"; then
2736 dnl For the "Does Emacs use" message at the end.
2740 dnl Strict linkers fail with
2741 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2742 dnl if -lfreetype is not specified.
2743 dnl The following is needed to set FREETYPE_LIBS.
2744 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2747 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2751 if test "${HAVE_FREETYPE}" = "yes"; then
2752 AC_DEFINE(HAVE_FREETYPE, 1,
2753 [Define to 1 if using the freetype and fontconfig libraries.])
2754 if test "${with_libotf}" != "no"; then
2755 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2757 if test "$HAVE_LIBOTF" = "yes"; then
2758 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2759 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2760 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2761 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2762 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2763 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2764 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2768 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2769 dnl Does the new font backend require it, or can it work without it?
2773 if test "${HAVE_LIBOTF}" = yes; then
2774 if test "${with_m17n_flt}" != "no"; then
2775 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2776 if test "$HAVE_M17N_FLT" = "yes"; then
2777 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2788 ### End of font-backend (under X11) section.
2790 AC_SUBST(FREETYPE_CFLAGS)
2791 AC_SUBST(FREETYPE_LIBS)
2792 AC_SUBST(FONTCONFIG_CFLAGS)
2793 AC_SUBST(FONTCONFIG_LIBS)
2794 AC_SUBST(LIBOTF_CFLAGS)
2795 AC_SUBST(LIBOTF_LIBS)
2796 AC_SUBST(M17N_FLT_CFLAGS)
2797 AC_SUBST(M17N_FLT_LIBS)
2799 ### Use -lXpm if available, unless `--with-xpm=no'.
2800 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2803 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2804 if test "${with_xpm}" != "no"; then
2805 SAVE_CPPFLAGS="$CPPFLAGS"
2806 SAVE_LDFLAGS="$LDFLAGS"
2807 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2808 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2809 AC_CHECK_HEADER(X11/xpm.h,
2810 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2811 if test "${HAVE_XPM}" = "yes"; then
2812 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2813 AC_EGREP_CPP(no_return_alloc_pixels,
2814 [#include "X11/xpm.h"
2815 #ifndef XpmReturnAllocPixels
2816 no_return_alloc_pixels
2818 ], HAVE_XPM=no, HAVE_XPM=yes)
2820 if test "${HAVE_XPM}" = "yes"; then
2821 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2825 CPPFLAGS="$SAVE_CPPFLAGS"
2826 LDFLAGS="$SAVE_LDFLAGS"
2831 if test "${HAVE_XPM}" = "yes"; then
2832 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2837 if test "${HAVE_X11}" = "yes"; then
2838 if test "${with_xpm}" != "no"; then
2839 AC_CHECK_HEADER(X11/xpm.h,
2840 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2841 if test "${HAVE_XPM}" = "yes"; then
2842 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2843 AC_EGREP_CPP(no_return_alloc_pixels,
2844 [#include "X11/xpm.h"
2845 #ifndef XpmReturnAllocPixels
2846 no_return_alloc_pixels
2848 ], HAVE_XPM=no, HAVE_XPM=yes)
2850 if test "${HAVE_XPM}" = "yes"; then
2858 if test "${HAVE_XPM}" = "yes"; then
2859 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2864 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2865 ### slightly different requirements wrt image libraries (it doesn't
2866 ### use -lXpm because it loads the xpm shared library dynamically at
2868 if test "${opsys}" = "mingw32"; then
2869 if test "${with_xpm}" != "no"; then
2870 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2874 if test "${HAVE_XPM}" = "yes"; then
2875 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2881 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2882 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2885 if test "${opsys}" = "mingw32"; then
2886 if test "${with_jpeg}" != "no"; then
2887 dnl Checking for jpeglib.h can lose because of a redefinition of
2889 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2891 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2892 if test "${HAVE_JPEG}" = "yes"; then
2893 AC_DEFINE(HAVE_JPEG)
2894 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2895 [#include <jpeglib.h>
2896 version=JPEG_LIB_VERSION
2898 [AC_DEFINE(HAVE_JPEG)],
2899 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2902 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2903 if test "${with_jpeg}" != "no"; then
2904 dnl Checking for jpeglib.h can lose because of a redefinition of
2906 AC_CHECK_HEADER(jerror.h,
2907 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2910 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2911 if test "${HAVE_JPEG}" = "yes"; then
2912 AC_DEFINE(HAVE_JPEG)
2913 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2914 [#include <jpeglib.h>
2915 version=JPEG_LIB_VERSION
2917 [AC_DEFINE(HAVE_JPEG)],
2918 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2921 if test "${HAVE_JPEG}" = "yes"; then
2927 ### Use -lpng if available, unless `--with-png=no'.
2928 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2931 if test "${opsys}" = "mingw32"; then
2932 if test "${with_png}" != "no"; then
2933 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2935 if test "${HAVE_PNG}" = "yes"; then
2936 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2938 AC_CHECK_DECL(png_longjmp,
2940 [AC_DEFINE(PNG_DEPSTRUCT, [],
2941 [Define to empty to suppress deprecation warnings when building
2942 with --enable-gcc-warnings and with libpng versions before 1.5,
2943 which lack png_longjmp.])],
2944 [[#ifdef HAVE_LIBPNG_PNG_H
2945 # include <libpng/png.h>
2951 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2952 if test "${with_png}" != "no"; then
2953 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2954 # in /usr/include/libpng.
2955 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2956 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2957 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2961 if test "${HAVE_PNG}" = "yes"; then
2962 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2963 LIBPNG="-lpng -lz -lm"
2965 AC_CHECK_DECL(png_longjmp,
2967 [AC_DEFINE(PNG_DEPSTRUCT, [],
2968 [Define to empty to suppress deprecation warnings when building
2969 with --enable-gcc-warnings and with libpng versions before 1.5,
2970 which lack png_longjmp.])],
2971 [[#ifdef HAVE_LIBPNG_PNG_H
2972 # include <libpng/png.h>
2983 if test "${with_zlib}" != "no"; then
2985 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
2987 case $ac_cv_search_inflateEnd in
2988 -*) LIBZ=$ac_cv_search_inflateEnd ;;
2991 if test "${HAVE_ZLIB}" = "yes"; then
2992 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
2993 ### mingw32 doesn't use -lz, since it loads the library dynamically.
2994 if test "${opsys}" = "mingw32"; then
3001 ### Use -ltiff if available, unless `--with-tiff=no'.
3002 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3005 if test "${opsys}" = "mingw32"; then
3006 if test "${with_tiff}" != "no"; then
3007 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3009 if test "${HAVE_TIFF}" = "yes"; then
3010 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3012 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3013 if test "${with_tiff}" != "no"; then
3014 AC_CHECK_HEADER(tiffio.h,
3016 # At least one tiff package requires the jpeg library.
3017 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3018 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3021 if test "${HAVE_TIFF}" = "yes"; then
3022 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3023 dnl FIXME -lz -lm, as per libpng?
3029 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3030 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3033 if test "${opsys}" = "mingw32"; then
3034 if test "${with_gif}" != "no"; then
3035 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3037 if test "${HAVE_GIF}" = "yes"; then
3038 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3040 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3041 || test "${HAVE_W32}" = "yes"; then
3042 AC_CHECK_HEADER(gif_lib.h,
3043 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3044 # Earlier versions can crash Emacs.
3045 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3047 if test "$HAVE_GIF" = yes; then
3049 elif test "$HAVE_GIF" = maybe; then
3050 # If gif_lib.h but no libgif, try libungif.
3051 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3052 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3055 if test "${HAVE_GIF}" = "yes"; then
3056 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3061 dnl Check for required libraries.
3062 if test "${HAVE_X11}" = "yes"; then
3065 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3066 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3067 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3068 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3069 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3070 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3071 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3072 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3073 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3074 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3076 if test "X${MISSING}" != X; then
3077 AC_MSG_ERROR([The following required libraries were not found:
3079 Maybe some development libraries/packages are missing?
3080 If you don't want to link with them give
3082 as options to configure])
3086 ### Use -lgpm if available, unless `--with-gpm=no'.
3089 if test "${with_gpm}" != "no"; then
3090 AC_CHECK_HEADER(gpm.h,
3091 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3093 if test "${HAVE_GPM}" = "yes"; then
3094 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3100 dnl Check for malloc/malloc.h on darwin
3101 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3104 ### Use NeXTstep API to implement GUI.
3105 if test "${HAVE_NS}" = "yes"; then
3106 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3107 if test "${NS_IMPL_COCOA}" = "yes"; then
3108 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3110 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3111 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3112 # See also .m.o rule in Makefile.in */
3113 # FIXME: are all these flags really needed? Document here why. */
3114 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3115 ## Extra CFLAGS applied to src/*.m files.
3116 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3118 # We also have mouse menus.
3123 if test "${HAVE_W32}" = "yes"; then
3127 ### Use session management (-lSM -lICE) if available
3130 if test "${HAVE_X11}" = "yes"; then
3131 AC_CHECK_HEADER(X11/SM/SMlib.h,
3132 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3134 if test "${HAVE_X_SM}" = "yes"; then
3135 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3139 *) LIBS="$LIBXSM $LIBS" ;;
3145 ### Use XRandr (-lXrandr) if available
3147 if test "${HAVE_X11}" = "yes"; then
3148 XRANDR_REQUIRED=1.2.2
3149 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3150 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3151 if test $HAVE_XRANDR = no; then
3152 # Test old way in case pkg-config doesn't have it (older machines).
3153 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3154 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3155 if test $HAVE_XRANDR = yes; then
3156 XRANDR_LIBS=-lXrandr
3157 AC_SUBST(XRANDR_LIBS)
3160 if test $HAVE_XRANDR = yes; then
3161 SAVE_CFLAGS="$CFLAGS"
3163 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3164 LIBS="$XRANDR_LIBS $LIBS"
3165 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3166 CFLAGS="$SAVE_CFLAGS"
3169 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3173 ### Use Xinerama (-lXinerama) if available
3175 if test "${HAVE_X11}" = "yes"; then
3176 XINERAMA_REQUIRED=1.0.2
3177 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3178 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3180 if test $HAVE_XINERAMA = no; then
3181 # Test old way in case pkg-config doesn't have it (older machines).
3182 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3183 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3184 if test $HAVE_XINERAMA = yes; then
3185 XINERAMA_LIBS=-lXinerama
3186 AC_SUBST(XINERAMA_LIBS)
3189 if test $HAVE_XINERAMA = yes; then
3190 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3195 ### Use libxml (-lxml2) if available
3196 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3198 if test "${with_xml2}" != "no"; then
3199 ### I'm not sure what the version number should be, so I just guessed.
3200 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3201 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3202 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3203 SAVE_CPPFLAGS="$CPPFLAGS"
3204 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3205 AC_CHECK_HEADER(libxml/HTMLparser.h,
3206 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3207 [#include <libxml/HTMLparser.h>])])
3208 CPPFLAGS="$SAVE_CPPFLAGS"
3209 if test "${HAVE_LIBXML2}" = "yes"; then
3210 LIBXML2_LIBS="-lxml2"
3211 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3214 if test "${HAVE_LIBXML2}" = "yes"; then
3215 if test "${opsys}" != "mingw32"; then
3216 LIBS="$LIBXML2_LIBS $LIBS"
3217 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3221 if test "${HAVE_LIBXML2}" = "yes"; then
3222 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3229 AC_SUBST(LIBXML2_LIBS)
3230 AC_SUBST(LIBXML2_CFLAGS)
3232 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3233 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3234 if test "${opsys}" = "mingw32"; then
3235 emacs_cv_netdb_declares_h_errno=yes
3237 AC_CACHE_CHECK(whether netdb declares h_errno,
3238 emacs_cv_netdb_declares_h_errno,
3239 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3240 [[return h_errno;]])],
3241 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3242 if test $emacs_cv_netdb_declares_h_errno = yes; then
3243 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3246 # sqrt and other floating-point functions such as fmod and frexp
3247 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3248 if test "${opsys}" != "mingw32"; then
3249 AC_CHECK_LIB(m, sqrt)
3252 # Check for mail-locking functions in a "mail" library. Probably this should
3253 # have the same check as for liblockfile below.
3254 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3255 if test $have_mail = yes; then
3257 LIBS="$LIBS_MAIL $LIBS"
3258 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3262 dnl Debian, at least:
3263 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3264 if test $have_lockfile = yes; then
3265 LIBS_MAIL=-llockfile
3266 LIBS="$LIBS_MAIL $LIBS"
3267 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3269 # If we have the shared liblockfile, assume we must use it for mail
3270 # locking (e.g. Debian). If we couldn't link against liblockfile
3271 # (no liblockfile.a installed), ensure that we don't need to.
3272 dnl This works for files generally, not just executables.
3273 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3274 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3275 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3276 if test $ac_cv_prog_liblockfile = yes; then
3277 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3278 This probably means that movemail could lose mail.
3279 There may be a `development' package to install containing liblockfile.])
3282 AC_CHECK_HEADERS_ONCE(maillock.h)
3285 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3286 ## interlock access to the mail spool. The alternative is a lock file named
3287 ## /usr/spool/mail/$USER.lock.
3290 aix4-2) mail_lock="lockf" ;;
3292 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3294 ## On GNU/Linux systems, both methods are used by various mail programs.
3295 ## I assume most people are using newer mailers that have heard of flock.
3296 ## Change this if you need to.
3297 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3298 ## configure gets the right answers, and that means *NOT* using flock.
3299 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3300 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3301 ## Debian maintainer hasn't provided a clean fix for Emacs.
3302 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3303 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3304 ## correct logic. -- fx
3305 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3306 ## liblockfile is a Free Software replacement for libmail, used on
3307 ## Debian systems and elsewhere. -rfr.
3310 if test $have_mail = yes || test $have_lockfile = yes; then
3311 test $ac_cv_header_maillock_h = yes && mail_lock=no
3316 mail_lock="none-needed" ;;
3320 case "$mail_lock" in
3321 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3323 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3327 *) BLESSMAIL_TARGET="need-blessmail" ;;
3329 AC_SUBST(BLESSMAIL_TARGET)
3332 AC_CHECK_FUNCS(accept4 gethostname \
3333 getrusage get_current_dir_name \
3335 select getpagesize setlocale \
3336 getrlimit setrlimit shutdown getaddrinfo \
3337 strsignal setitimer \
3338 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3339 gai_strerror getline getdelim sync \
3340 difftime posix_memalign \
3341 getpwent endpwent getgrent endgrent \
3343 cfmakeraw cfsetspeed copysign __executable_start log2)
3345 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3346 ## has a broken `rint' in some library versions including math library
3347 ## version number A.09.05.
3348 ## You can fix the math library by installing patch number PHSS_4630.
3349 ## But we can fix it more reliably for Emacs by just not using rint.
3350 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3353 *) AC_CHECK_FUNCS(random rint) ;;
3356 dnl Cannot use AC_CHECK_FUNCS
3357 AC_CACHE_CHECK([for __builtin_unwind_init],
3358 emacs_cv_func___builtin_unwind_init,
3359 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3360 emacs_cv_func___builtin_unwind_init=yes,
3361 emacs_cv_func___builtin_unwind_init=no)])
3362 if test $emacs_cv_func___builtin_unwind_init = yes; then
3363 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3364 [Define to 1 if you have the `__builtin_unwind_init' function.])
3367 AC_CHECK_HEADERS_ONCE(sys/un.h)
3372 AC_CHECK_FUNCS(grantpt)
3374 # PTY-related GNU extensions.
3375 AC_CHECK_FUNCS(getpt posix_openpt)
3377 # Check this now, so that we will NOT find the above functions in ncurses.
3378 # That is because we have not set up to link ncurses in lib-src.
3379 # It's better to believe a function is not available
3380 # than to expect to find it in ncurses.
3381 # Also we need tputs and friends to be able to build at all.
3382 AC_MSG_CHECKING([for library containing tputs])
3383 # Run a test program that contains a call to tputs, a call that is
3384 # never executed. This tests whether a pre-'main' dynamic linker
3385 # works with the library. It's too much trouble to actually call
3386 # tputs in the test program, due to portability hassles. When
3387 # cross-compiling, assume the test program will run if it links.
3388 AC_DEFUN([tputs_link_source], [
3390 [[extern void tputs (const char *, int, int (*)(int));
3391 int main (int argc, char **argv)
3394 tputs (argv[0], 0, 0);
3398 if test "${opsys}" = "mingw32"; then
3401 # Maybe curses should be tried earlier?
3402 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3403 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3405 if test -z "$tputs_library"; then
3409 LIBS_TERMCAP=-l$tputs_library
3411 LIBS="$LIBS_TERMCAP $LIBS"
3413 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3414 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3416 if test "X$msg" != Xno; then
3421 AC_MSG_RESULT([$msg])
3422 if test "X$msg" = Xno; then
3423 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3424 The following libraries were tried (in order):
3425 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3426 Please try installing whichever of these libraries is most appropriate
3427 for your system, together with its header files.
3428 For example, a libncurses-dev(el) or similar package.])
3431 ## Use termcap instead of terminfo?
3432 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3434 ## FIXME? In the cases below where we unconditionally set
3435 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3436 ## if that was found above to have tputs.
3437 ## Should we use the gnu* logic everywhere?
3439 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3440 ## The ncurses library has been moved out of the System framework in
3441 ## Mac OS X 10.2. So if configure detects it, set the command-line
3442 ## option to use it.
3443 darwin) LIBS_TERMCAP="-lncurses" ;;
3445 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3448 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3449 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3450 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3451 [[#if __FreeBSD_version < 400000
3454 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3456 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3458 if test $emacs_cv_freebsd_terminfo = yes; then
3459 LIBS_TERMCAP="-lncurses"
3462 LIBS_TERMCAP="-ltermcap"
3472 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3474 LIBS_TERMCAP="-ltermcap"
3478 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3480 ## hpux: Make sure we get select from libc rather than from libcurses
3481 ## because libcurses on HPUX 10.10 has a broken version of select.
3482 ## We used to use -lc -lcurses, but this may be cleaner.
3483 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3484 # set that way, now it uses the default). Isn't this a contradiction?
3485 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3489 TERMCAP_OBJ=tparam.o
3490 if test $TERMINFO = yes; then
3491 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3492 TERMCAP_OBJ=terminfo.o
3494 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3495 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3497 AC_SUBST(LIBS_TERMCAP)
3498 AC_SUBST(TERMCAP_OBJ)
3501 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3502 # On Darwin, res_init appears not to be useful: see bug#562 and
3503 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3506 if test $opsys != darwin; then
3508 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3509 #include <arpa/nameser.h>
3510 #include <resolv.h>]],
3511 [[return res_init();]])],
3512 have_res_init=yes, have_res_init=no)
3513 if test "$have_res_init" = no; then
3515 LIBS="$LIBS -lresolv"
3516 AC_MSG_CHECKING(for res_init with -lresolv)
3517 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3518 #include <arpa/nameser.h>
3519 #include <resolv.h>]],
3520 [[return res_init();]])],
3521 have_res_init=yes, have_res_init=no)
3522 AC_MSG_RESULT($have_res_init)
3523 if test "$have_res_init" = yes ; then
3529 if test "$have_res_init" = yes; then
3530 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3534 # Do we need the Hesiod library to provide the support routines?
3535 dnl FIXME? Should we be skipping this on Darwin too?
3537 if test "$with_hesiod" != no ; then
3538 # Don't set $LIBS here -- see comments above. FIXME which comments?
3539 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3540 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3541 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3542 if test "$resolv" = yes ; then
3547 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3548 hesiod=yes, :, $RESOLVLIB)])
3550 if test x"$hesiod" = xyes; then
3556 # Do we need libresolv (due to res_init or Hesiod)?
3557 if test "$resolv" = yes && test $opsys != darwin; then
3564 # These tell us which Kerberos-related libraries to use.
3571 if test "${with_kerberos}" != no; then
3572 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3573 if test $have_com_err = yes; then
3574 COM_ERRLIB=-lcom_err
3575 LIBS="$COM_ERRLIB $LIBS"
3577 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3578 if test $have_crypto = yes; then
3580 LIBS="$CRYPTOLIB $LIBS"
3582 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3583 if test $have_k5crypto = yes; then
3584 CRYPTOLIB=-lk5crypto
3585 LIBS="$CRYPTOLIB $LIBS"
3587 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3588 if test $have_krb5=yes; then
3590 LIBS="$KRB5LIB $LIBS"
3592 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3593 if test "${with_kerberos5}" = no; then
3594 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3595 if test $have_des425 = yes; then
3597 LIBS="$DESLIB $LIBS"
3599 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3600 if test $have_des = yes; then
3602 LIBS="$DESLIB $LIBS"
3605 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3606 if test $have_krb4 = yes; then
3608 LIBS="$KRB4LIB $LIBS"
3610 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3611 if test $have_krb = yes; then
3613 LIBS="$KRB4LIB $LIBS"
3618 if test "${with_kerberos5}" != no; then
3619 AC_CHECK_HEADERS(krb5.h,
3620 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3621 [#include <krb5.h>])])
3623 AC_CHECK_HEADERS(krb.h,,
3624 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3625 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3627 AC_CHECK_HEADERS(com_err.h)
3630 AC_SUBST(COM_ERRLIB)
3636 AC_CHECK_FUNCS_ONCE(tzset)
3637 AC_MSG_CHECKING(whether localtime caches TZ)
3638 AC_CACHE_VAL(emacs_cv_localtime_cache,
3639 [if test x$ac_cv_func_tzset = xyes; then
3640 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3641 char TZ_GMT0[] = "TZ=GMT0";
3642 char TZ_PST8[] = "TZ=PST8";
3645 time_t now = time ((time_t *) 0);
3646 int hour_GMT0, hour_unset;
3647 if (putenv (TZ_GMT0) != 0)
3649 hour_GMT0 = localtime (&now)->tm_hour;
3651 hour_unset = localtime (&now)->tm_hour;
3652 if (putenv (TZ_PST8) != 0)
3654 if (localtime (&now)->tm_hour == hour_GMT0)
3657 if (localtime (&now)->tm_hour != hour_unset)
3660 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3661 [# If we have tzset, assume the worst when cross-compiling.
3662 emacs_cv_localtime_cache=yes])
3664 # If we lack tzset, report that localtime does not cache TZ,
3665 # since we can't invalidate the cache if we don't have tzset.
3666 emacs_cv_localtime_cache=no
3668 AC_MSG_RESULT($emacs_cv_localtime_cache)
3669 if test $emacs_cv_localtime_cache = yes; then
3670 AC_DEFINE(LOCALTIME_CACHE, 1,
3671 [Define to 1 if localtime caches TZ.])
3675 AC_CHECK_FUNC(socket, , ok_so_far=no)
3676 if test $ok_so_far = yes; then
3677 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3679 if test $ok_so_far = yes; then
3680 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3682 if test $ok_so_far = yes; then
3683 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3684 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3685 [Define to 1 if you have inet sockets.])
3688 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3689 dnl This can be removed once we assume Autoconf 2.70.
3691 *-solaris2.4 | *-solaris2.4.*)
3692 dnl Disable the Autoconf-generated vfork test.
3693 : ${ac_cv_func_vfork_works=no};;
3698 AC_CHECK_FUNCS(snprintf)
3700 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3703 AC_MSG_CHECKING([whether GLib is linked in])
3704 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3707 [[g_print ("Hello world");]])],
3710 AC_MSG_RESULT([$links_glib])
3711 if test "${links_glib}" = "yes"; then
3712 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3713 if test "$HAVE_NS" = no;then
3719 dnl Adapted from Haible's version.
3720 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3721 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3722 [[char* cs = nl_langinfo(CODESET);]])],
3723 emacs_cv_langinfo_codeset=yes,
3724 emacs_cv_langinfo_codeset=no)
3726 if test $emacs_cv_langinfo_codeset = yes; then
3727 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3728 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3733 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3734 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3735 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3736 if test "$emacs_cv_c_restrict_arr" = yes; then
3737 AC_DEFINE(__restrict_arr, __restrict,
3738 [Define to compiler's equivalent of C99 restrict keyword in array
3739 declarations. Define as empty for no equivalent.])
3742 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3743 dnl how the tty code is related to POSIX and/or other versions of termios.
3744 dnl The following looks like a useful start.
3746 dnl AC_SYS_POSIX_TERMIOS
3747 dnl if test $ac_cv_sys_posix_termios = yes; then
3748 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3749 dnl and macros for terminal control.])
3750 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3753 dnl Turned on June 1996 supposing nobody will mind it.
3754 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3755 if test "${opsys}" != "mingw32"; then
3756 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3757 in the full name stands for the login id.])
3760 dnl Every platform that uses configure supports this.
3761 dnl There is a create-lockfiles option you can
3762 dnl customize if you do not want the lock files to be written.
3763 dnl So it is not clear that this #define still needs to exist.
3764 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3765 so that Emacs can tell instantly when you try to modify a file that
3766 someone else has modified in his/her Emacs.])
3768 dnl Everybody supports this, except MS.
3769 dnl Seems like the kind of thing we should be testing for, though.
3770 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3771 if test "${opsys}" != "mingw32"; then
3772 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3775 dnl Everybody supports this, except MS-DOS.
3776 dnl Seems like the kind of thing we should be testing for, though.
3777 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3778 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3779 4.2-compatible sockets.])
3781 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3783 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3784 a null file, or a data sink.])
3785 if test "${opsys}" = "mingw32"; then
3786 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3788 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3791 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3792 if test "${opsys}" = "mingw32"; then
3793 AC_DEFINE(SEPCHAR, [';'])
3795 AC_DEFINE(SEPCHAR, [':'])
3798 dnl Everybody supports this, except MS-DOS.
3799 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3801 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3804 AC_DEFINE(DIRECTORY_SEP, ['/'],
3805 [Character that separates directories in a file name.])
3807 if test "${opsys}" = "mingw32"; then
3808 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3809 [Returns true if character is a device separator.])
3811 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3812 [Returns true if character is a directory separator.])
3814 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3815 [Returns true if character is any form of separator.])
3817 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3818 [Returns true if character is a device separator.])
3820 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3821 [Returns true if character is a directory separator.])
3823 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3824 [Returns true if character is any form of separator.])
3827 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3831 dnl Unfortunately without libXmu we cannot support EditRes.
3832 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3833 AC_DEFINE(NO_EDITRES, 1)
3838 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3839 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3840 AC_DEFINE(NO_EDITRES, 1)
3846 irix6-5 | sol2* | unixware )
3847 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3848 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3849 dnl need the constant to dimension an array. So wire in the appropriate
3851 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3855 emacs_broken_SIGIO=no
3858 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3859 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3860 hpux* | irix6-5 | openbsd | sol2* | unixware )
3861 emacs_broken_SIGIO=yes
3865 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3866 dnl the way this system works, libc functions that return malloced
3867 dnl memory use the libc malloc implementation. Calling xfree or
3868 dnl xrealloc on the results of such functions results in a crash.
3870 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3871 dnl but that does not currently work on this system.
3873 dnl It is possible to completely override the malloc implementation on
3874 dnl AIX, but that involves putting the malloc functions in a shared
3875 dnl library and setting the MALLOCTYPE environment variable to point to
3876 dnl that shared library.
3878 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3879 dnl to avoid a crash just use the Emacs implementation for that function.
3881 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3882 dnl of this file, so that we do not check for get_current_dir_name
3883 dnl on AIX. But that might be fragile if something else ends
3884 dnl up testing for get_current_dir_name as a dependency.
3885 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3886 get_current_dir_name should not be used.])
3890 dnl Circumvent a bug in FreeBSD. In the following sequence of
3891 dnl writes/reads on a PTY, read(2) returns bogus data:
3893 dnl write(2) 1022 bytes
3894 dnl write(2) 954 bytes, get EAGAIN
3895 dnl read(2) 1024 bytes in process_read_output
3896 dnl read(2) 11 bytes in process_read_output
3898 dnl That is, read(2) returns more bytes than have ever been written
3899 dnl successfully. The 1033 bytes read are the 1022 bytes written
3900 dnl successfully after processing (for example with CRs added if the
3901 dnl terminal is set up that way which it is here). The same bytes will
3902 dnl be seen again in a later read(2), without the CRs.
3903 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3904 work around an issue when reading from a PTY.])
3910 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3911 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3916 darwin | dragonfly | freebsd | netbsd | openbsd )
3917 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3918 close a pty to make it a controlling terminal (it is already a
3919 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3923 dnl FIXME Surely we can test for this rather than hard-code it.
3925 netbsd | openbsd) sound_device="/dev/audio" ;;
3926 *) sound_device="/dev/dsp" ;;
3930 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3931 [Name of the default sound device.])
3934 dnl Emacs can read input using SIGIO and buffering characters itself,
3935 dnl or using CBREAK mode and making C-g cause SIGINT.
3936 dnl The choice is controlled by the variable interrupt_input.
3938 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3940 dnl Emacs uses the presence of the USABLE_SIGIO macro
3941 dnl to indicate whether or not signal-driven I/O is possible. It uses
3942 dnl INTERRUPT_INPUT to decide whether to use it by default.
3944 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3945 dnl CBREAK mode has two disadvantages
3946 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3947 dnl I hear that in system V this problem does not exist.
3948 dnl 2) Control-G causes output to be discarded.
3949 dnl I do not know whether this can be fixed in system V.
3951 dnl Another method of doing input is planned but not implemented.
3952 dnl It would have Emacs fork off a separate process
3953 dnl to read the input and send it to the true Emacs process
3956 darwin | gnu-linux | gnu-kfreebsd )
3957 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3962 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3963 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3964 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3965 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3966 dnl taking float or double parameters.
3968 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3969 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3970 file defines `NeedWidePrototypes' as `NO'.])
3975 dnl Used in process.c, this must be a loop, even if it only runs once.
3976 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3977 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3978 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3979 dnl trying suffixes 0-16.
3980 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3981 first PTY, if PTYs are supported.])
3982 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3983 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3984 end of a PTY, if non-standard.])
3985 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3986 end of a PTY, if non-standard.])
3990 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3991 dnl You allocate a pty by opening /dev/ptc to get the master side.
3992 dnl To get the name of the slave side, you just ttyname() the master side.
3993 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3994 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
3998 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
3999 dnl multi-line AC_DEFINEs are hard. :(
4000 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)])
4001 AC_DEFINE(PTY_NAME_SPRINTF, [])
4002 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4005 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4007 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4008 dnl Not used, because PTY_ITERATION is defined.
4009 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4010 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4011 dnl But we don't have to block SIGCHLD because it is blocked in the
4012 dnl implementation of grantpt.
4013 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4014 AC_DEFINE(PTY_NAME_SPRINTF, [])
4015 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4019 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4022 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4024 if test "x$ac_cv_func_grantpt" = xyes; then
4025 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4026 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4027 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4028 dnl to prevent sigchld_handler from intercepting the child's death.
4029 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); }])
4030 dnl if HAVE_POSIX_OPENPT
4031 if test "x$ac_cv_func_posix_openpt" = xyes; then
4032 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4033 AC_DEFINE(PTY_NAME_SPRINTF, [])
4035 elif test "x$ac_cv_func_getpt" = xyes; then
4036 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4037 AC_DEFINE(PTY_NAME_SPRINTF, [])
4039 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4042 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4047 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4048 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4049 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4053 dnl It looks like this cannot be right, because it is not a loop.
4054 dnl However, process.c actually does this:
4060 dnl which presumably makes it OK, since irix == sgi (?).
4061 dnl FIXME it seems like this special treatment is unnecessary?
4062 dnl Why can't irix use a single-trip loop like eg cygwin?
4063 AC_DEFINE(PTY_ITERATION, [])
4064 dnl Not used, because PTY_ITERATION is defined.
4065 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4066 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); }])
4067 dnl No need to get the pty name at all.
4068 AC_DEFINE(PTY_NAME_SPRINTF, [])
4069 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4070 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4074 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4075 dnl from intercepting that death. If any child but grantpt's should die
4076 dnl within, it should be caught after sigrelse(2).
4077 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); }])
4081 dnl Comments are as per sol2*.
4082 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); }])
4089 dnl This change means that we don't loop through allocate_pty too
4090 dnl many times in the (rare) event of a failure.
4091 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4092 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4093 dnl Push various streams modules onto a PTY channel. Used in process.c.
4094 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.])
4099 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4100 "typing" a signal character on the pty.])
4103 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4104 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4105 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4106 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4109 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4110 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4111 gnu-linux | gnu-kfreebsd )
4113 AC_MSG_CHECKING([for signals via characters])
4114 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4115 #include <linux/version.h>
4116 #if LINUX_VERSION_CODE < 0x20400
4117 # error "Linux version too old"
4119 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4121 AC_MSG_RESULT([$emacs_signals_via_chars])
4122 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4127 dnl Used in lisp.h, emacs.c, vm-limit.c
4128 dnl NEWS.18 describes this as "a number which contains
4129 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4130 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4131 stored in a Lisp_Object.])
4132 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4136 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4137 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4140 dnl The data segment on this machine always starts at address 0x40000000.
4141 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4144 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4149 AH_TEMPLATE(TAB3, [Undocumented.])
4152 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4154 gnu | dragonfly | freebsd | netbsd | openbsd )
4155 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4156 AC_DEFINE(TAB3, OXTABS)
4159 gnu-linux | gnu-kfreebsd )
4160 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4164 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4165 [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)],
4166 [Mark a secondary stack, like the register stack on the ia64.]), [])
4170 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4171 run_time_remap; for HPUX.])
4176 dnl This won't be used automatically yet. We also need to know, at least,
4177 dnl that the stack is continuous.
4178 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4179 registers relevant for conservative garbage collection in the jmp_buf.])
4183 dnl Not all the architectures are tested, but there are Debian packages
4184 dnl for SCM and/or Guile on them, so the technique must work. See also
4185 dnl comments in alloc.c concerning setjmp and gcc.
4186 dnl Fixme: it's probably safe to just use the GCC conditional below.
4187 gnu-linux | gnu-kfreebsd )
4188 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4189 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4190 || defined __alpha__ || defined __mips__ || defined __s390__ \
4191 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4192 || defined __ia64__ || defined __sh__
4195 # error "setjmp not known to work on this arch"
4197 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4202 if test x$GCC = xyes; then
4203 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4204 AC_DEFINE(GC_SETJMP_WORKS, 1)
4207 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4208 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4209 AC_DEFINE(GC_SETJMP_WORKS, 1)
4214 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4215 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4218 [[#include <setjmp.h>
4220 # define _longjmp longjmp
4225 _longjmp (j, 1);]])],
4226 [emacs_cv_func__setjmp=yes],
4227 [emacs_cv_func__setjmp=no])])
4228 if test $emacs_cv_func__setjmp = yes; then
4229 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4231 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4234 [[#include <setjmp.h>
4237 if (! sigsetjmp (j, 1))
4238 siglongjmp (j, 1);]])],
4239 [emacs_cv_func_sigsetjmp=yes],
4240 [emacs_cv_func_sigsetjmp=no])])
4241 if test $emacs_cv_func_sigsetjmp = yes; then
4242 AC_DEFINE([HAVE_SIGSETJMP], 1,
4243 [Define to 1 if sigsetjmp and siglongjmp work.
4244 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4250 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4251 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4252 dnl and this is all we need.
4253 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4260 dnl Used in xfaces.c.
4261 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4262 some systems, where it requires time.h.])
4267 dnl Define symbols to identify the version of Unix this is.
4268 dnl Define all the symbols that apply correctly.
4269 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4270 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4271 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4272 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4277 dnl This symbol should be defined on AIX Version 3 ???????
4278 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4280 # error "_AIX not defined"
4282 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4286 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4290 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4291 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4292 dnl distinguish OS X from pure Darwin.
4293 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4296 gnu-linux | gnu-kfreebsd )
4298 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4303 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4308 AC_DEFINE(USG5_4, [])
4309 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4313 AC_DEFINE(DOS_NT, [])
4314 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4315 if test "x$ac_enable_checking" != "x" ; then
4316 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4322 AC_DEFINE(USG5_4, [])
4323 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4328 AC_DEFINE(USG5_4, [])
4332 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4335 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4336 emacs_cv_usable_FIONREAD=no
4340 emacs_cv_usable_FIONREAD=yes
4345 [AC_LANG_PROGRAM([[#include <sys/types.h>
4346 #include <sys/ioctl.h>
4348 # include <sys/filio.h>
4351 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4352 [emacs_cv_usable_FIONREAD=yes],
4353 [emacs_cv_usable_FIONREAD=no])
4356 if test $emacs_cv_usable_FIONREAD = yes; then
4357 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4359 if test $emacs_broken_SIGIO = no; then
4360 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4362 [AC_LANG_PROGRAM([[#include <fcntl.h>
4365 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4366 [emacs_cv_usable_SIGIO=yes],
4367 [emacs_cv_usable_SIGIO=no])],
4368 [emacs_cv_usable_SIGIO=yes],
4369 [emacs_cv_usable_SIGIO=no])
4370 if test $emacs_cv_usable_SIGIO = yes; then
4371 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4378 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4379 dnl and on Cygwin prior to version 1.7.24 that becomes the
4380 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4381 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4382 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4383 dnl needed starting with cygwin-1.7.24, and it is no longer
4384 dnl effective starting with glib-2.36. */
4386 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4387 G_SLICE environment variable to "always-malloc" at startup.])
4391 dnl It works to open the pty's tty in the parent (Emacs), then
4392 dnl close and reopen it in the child.
4393 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4394 works to open a pty's tty in the parent process, then close and
4395 reopen it in the child.])
4399 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4400 use VSUSP instead of VSWTCH.])
4404 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4409 # Set up the CFLAGS for real compilation, so we can substitute it.
4410 CFLAGS="$REAL_CFLAGS"
4411 CPPFLAGS="$REAL_CPPFLAGS"
4413 ## Hack to detect a buggy GCC version.
4414 if test "x$GCC" = xyes \
4415 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4416 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4417 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4418 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4421 version=$PACKAGE_VERSION
4423 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4424 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4425 [Short copyright string for this version of Emacs.])
4428 ### Specify what sort of things we'll be editing into Makefile and config.h.
4429 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4431 AC_SUBST(configuration)
4436 AC_SUBST(exec_prefix)
4439 AC_SUBST(sharedstatedir)
4440 AC_SUBST(libexecdir)
4445 AC_SUBST(standardlisppath)
4446 AC_SUBST(locallisppath)
4448 AC_SUBST(x_default_search_path)
4450 AC_SUBST(archlibdir)
4455 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4456 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4457 ## end of LIBX_BASE, but nothing ever set it.
4458 AC_SUBST(LD_SWITCH_X_SITE)
4459 AC_SUBST(C_SWITCH_X_SITE)
4460 AC_SUBST(GNUSTEP_CFLAGS)
4462 ## Used in lwlib/Makefile.in.
4463 AC_SUBST(X_TOOLKIT_TYPE)
4465 AC_SUBST(ns_appbindir)
4466 AC_SUBST(ns_appresdir)
4468 AC_SUBST(GNU_OBJC_CFLAGS)
4469 AC_SUBST(OTHER_FILES)
4471 if test -n "${term_header}"; then
4472 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4473 [Define to the header for the built-in window system.])
4476 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4477 [Define to the canonical Emacs configuration name.])
4478 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4479 [Define to the options passed to configure.])
4480 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4481 define this to include extra configuration information.])
4485 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4492 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4493 AC_DEFINE(HAVE_X_WINDOWS, 1,
4494 [Define to 1 if you want to use the X window system.])
4496 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4498 if test "$HAVE_XFT" = "yes"; then
4499 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4500 elif test "$HAVE_FREETYPE" = "yes"; then
4501 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4511 if test "${USE_X_TOOLKIT}" != "none" ; then
4513 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4514 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4515 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4516 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4517 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4521 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4522 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4526 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4527 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4528 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4532 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4533 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4536 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4539 AC_SUBST(WIDGET_OBJ)
4542 case "$USE_X_TOOLKIT" in
4543 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4544 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4545 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4547 AC_SUBST(TOOLKIT_LIBW)
4549 if test "${opsys}" != "mingw32"; then
4550 if test "$USE_X_TOOLKIT" = "none"; then
4551 LIBXT_OTHER="\$(LIBXSM)"
4552 OLDXMENU_TARGET="really-oldXMenu"
4554 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4555 OLDXMENU_TARGET="really-lwlib"
4558 AC_SUBST(LIBXT_OTHER)
4560 ## The X Menu stuff is present in the X10 distribution, but missing
4561 ## from X11. If we have X10, just use the installed library;
4562 ## otherwise, use our own copy.
4563 if test "${HAVE_X11}" = "yes" ; then
4564 AC_DEFINE(HAVE_X11, 1,
4565 [Define to 1 if you want to use version 11 of X windows.
4566 Otherwise, Emacs expects to use version 10.])
4568 if test "$USE_X_TOOLKIT" = "none"; then
4569 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4571 OLDXMENU="\${lwlibdir}/liblw.a"
4573 LIBXMENU="\$(OLDXMENU)"
4574 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4575 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4577 ## For a syntactically valid Makefile; not actually used for anything.
4578 ## See comments in src/Makefile.in.
4580 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4581 if test "${HAVE_X_WINDOWS}" = "yes"; then
4590 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4597 AC_SUBST(OLDXMENU_TARGET)
4600 AC_SUBST(LIBX_OTHER)
4601 AC_SUBST(OLDXMENU_DEPS)
4603 if test "${HAVE_MENUS}" = "yes" ; then
4604 AC_DEFINE(HAVE_MENUS, 1,
4605 [Define to 1 if you have mouse menus.
4606 (This is automatic if you use X, but the option to specify it remains.)
4607 It is also defined with other window systems that support xmenu.c.])
4610 if test "${GNU_MALLOC}" = "yes" ; then
4611 AC_DEFINE(GNU_MALLOC, 1,
4612 [Define to 1 if you want to use the GNU memory allocator.])
4616 if test "${REL_ALLOC}" = "yes" ; then
4617 AC_DEFINE(REL_ALLOC, 1,
4618 [Define REL_ALLOC if you want to use the relocating allocator for
4621 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4623 AC_SUBST(RALLOC_OBJ)
4625 if test "$opsys" = "cygwin"; then
4626 CYGWIN_OBJ="sheap.o cygw32.o"
4627 ## Cygwin differs because of its unexec().
4629 POST_ALLOC_OBJ=lastfile.o
4630 elif test "$opsys" = "mingw32"; then
4633 POST_ALLOC_OBJ=lastfile.o
4636 PRE_ALLOC_OBJ=lastfile.o
4639 AC_SUBST(CYGWIN_OBJ)
4640 AC_SUBST(PRE_ALLOC_OBJ)
4641 AC_SUBST(POST_ALLOC_OBJ)
4643 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4644 # it temporarily reverts them to their pre-pkg-config values,
4645 # because gnulib needs to work with both src (which uses the
4646 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4647 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4648 # and it therefore needs to run in an environment where LIBS does not
4649 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4650 # for some package unrelated to lib-src.
4653 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4654 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4655 gl_ASSERT_NO_GNULIB_POSIXCHECK
4656 gl_ASSERT_NO_GNULIB_TESTS
4661 if test "${opsys}" = "mingw32"; then
4662 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4663 # Remove unneeded switches from the value of CC that goes to Makefiles
4664 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4668 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4671 ## The -headerpad option tells ld (see man page) to leave room at the
4672 ## end of the header for adding load commands. Needed for dumping.
4673 ## 0x690 is the total size of 30 segment load commands (at 56
4674 ## each); under Cocoa 31 commands are required.
4675 if test "$HAVE_NS" = "yes"; then
4676 libs_nsgui="-framework AppKit"
4677 if test "$NS_IMPL_COCOA" = "yes"; then
4678 libs_nsgui="$libs_nsgui -framework IOKit"
4685 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4687 ## This is here because src/Makefile.in did some extra fiddling around
4688 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4689 ## LD_SWITCH_SYSTEM_TEMACS instead,
4690 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4691 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4694 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4695 ## find X at run-time.
4696 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4697 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4698 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4699 ## had different values in configure (in ac_link) and src/Makefile.in.
4700 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4701 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4704 ## MinGW64 does not prepend an underscore to symbols, so we must
4705 ## pass a different -entry switch to linker. FIXME: It is better
4706 ## to make the entry points the same by changing unexw32.c.
4707 case "$canonical" in
4708 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4709 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4713 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4715 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4718 if test x$ac_enable_profiling != x ; then
4720 *freebsd | gnu-linux) ;;
4721 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4725 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4727 ## MinGW-specific post-link processing of temacs.
4728 TEMACS_POST_LINK=":"
4731 if test "${opsys}" = "mingw32"; then
4732 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4733 ADDSECTION="../nt/addsection\$(EXEEXT)"
4734 ## Preload heap size of temacs.exe in MB.
4735 case "$canonical" in
4736 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4737 *) EMACS_HEAPSIZE=27 ;;
4741 AC_SUBST(ADDSECTION)
4742 AC_SUBST(TEMACS_POST_LINK)
4743 AC_SUBST(EMACS_HEAPSIZE)
4745 ## Common for all window systems
4746 if test "$window_system" != "none"; then
4747 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4748 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4751 AC_SUBST(WINDOW_SYSTEM_OBJ)
4753 AH_TOP([/* GNU Emacs site configuration template file.
4755 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4756 Free Software Foundation, Inc.
4758 This file is part of GNU Emacs.
4760 GNU Emacs is free software: you can redistribute it and/or modify
4761 it under the terms of the GNU General Public License as published by
4762 the Free Software Foundation, either version 3 of the License, or
4763 (at your option) any later version.
4765 GNU Emacs is distributed in the hope that it will be useful,
4766 but WITHOUT ANY WARRANTY; without even the implied warranty of
4767 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4768 GNU General Public License for more details.
4770 You should have received a copy of the GNU General Public License
4771 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4774 /* No code in Emacs #includes config.h twice, but some bits of code
4775 intended to work with other packages as well (like gmalloc.c)
4776 think they can include it as many times as they like. */
4777 #ifndef EMACS_CONFIG_H
4778 #define EMACS_CONFIG_H
4781 AH_BOTTOM([#include <conf_post.h>
4783 #endif /* EMACS_CONFIG_H */
4792 #### Report on what we decided to do.
4793 #### Report GTK as a toolkit, even if it doesn't use Xt.
4794 #### It makes printing result more understandable as using GTK sets
4795 #### toolkit_scroll_bars to yes by default.
4796 if test "${HAVE_GTK}" = "yes"; then
4797 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4800 if test $USE_ACL -ne 0; then
4801 acl_summary="yes $LIB_ACL"
4807 Configured for \`${canonical}'.
4809 Where should the build process find the source code? ${srcdir}
4810 What compiler should emacs be built with? ${CC} ${CFLAGS}
4811 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4812 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4813 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4814 What window system should Emacs use? ${window_system}
4815 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4817 if test -n "${x_includes}"; then
4818 echo " Where do we find X Windows header files? ${x_includes}"
4820 echo " Where do we find X Windows header files? Standard dirs"
4822 if test -n "${x_libraries}"; then
4823 echo " Where do we find X Windows libraries? ${x_libraries}"
4825 echo " Where do we find X Windows libraries? Standard dirs"
4828 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4829 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4830 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4831 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4832 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4833 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4834 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4835 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4837 echo " Does Emacs support sound? ${HAVE_SOUND}"
4839 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4840 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4841 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4842 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4843 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4844 echo " Does Emacs use access control lists? ${acl_summary}"
4845 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4846 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4847 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4849 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4850 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4851 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4852 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4853 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4855 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4858 if test -n "${EMACSDATA}"; then
4859 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4861 if test -n "${EMACSDOC}"; then
4862 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4867 if test "$HAVE_NS" = "yes"; then
4869 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4870 The installed application will go to nextstep/Emacs.app and can be
4871 run or moved from there."
4872 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4873 echo "The application will be fully self-contained."
4875 echo "The lisp resources for the application will be installed under ${prefix}.
4876 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4877 to run if these resources are not installed."
4882 if test "${opsys}" = "cygwin"; then
4884 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4890 # Remove any trailing slashes in these variables.
4891 [test "${prefix}" != NONE &&
4892 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4893 test "${exec_prefix}" != NONE &&
4894 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4896 if test "$HAVE_NS" = "yes"; then
4897 if test "$NS_IMPL_GNUSTEP" = yes; then
4898 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4899 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4900 ns_check_file=Resources/Info-gnustep.plist
4902 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4903 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4904 ns_check_file=Contents/Info.plist
4906 AC_SUBST(ns_check_file)
4909 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4910 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4911 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4912 dnl (else you get "no `Makefile.am' found for any configure output").
4913 dnl This will work, but you get a config.status that is not quite right
4914 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4915 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4916 dnl it seems better to just live with the duplication.
4917 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4919 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4920 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4921 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4922 leim/Makefile nextstep/Makefile nt/Makefile])
4924 dnl test/ is not present in release tarfiles.
4925 opt_makefile=test/automated/Makefile
4927 if test -f "$srcdir/$opt_makefile.in"; then
4928 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4929 dnl Again, it's best not to use a variable. Though you can add
4930 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4931 AC_CONFIG_FILES([test/automated/Makefile])
4935 dnl admin/ may or may not be present.
4936 opt_makefile=admin/unidata/Makefile
4938 if test -f "$srcdir/$opt_makefile.in"; then
4939 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4940 AC_CONFIG_FILES([admin/unidata/Makefile])
4944 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4946 AC_SUBST(SUBDIR_MAKEFILES_IN)
4948 dnl You might wonder (I did) why epaths.h is generated by running make,
4949 dnl rather than just letting configure generate it from epaths.in.
4950 dnl One reason is that the various paths are not fully expanded (see above);
4951 dnl eg gamedir=${prefix}/var/games/emacs.
4952 dnl Secondly, the GNU Coding standards require that one should be able
4953 dnl to run `make prefix=/some/where/else' and override the values set
4954 dnl by configure. This also explains the `move-if-change' test and
4955 dnl the use of force in the `epaths-force' rule in Makefile.in.
4956 AC_CONFIG_COMMANDS([src/epaths.h], [
4957 if test "${opsys}" = "mingw32"; then
4958 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4960 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4962 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4964 AC_CONFIG_COMMANDS([src/.gdbinit], [
4965 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4966 echo "source $srcdir/src/.gdbinit" > src/.gdbinit