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="$nw -Wsuggest-attribute=pure"
829 # This part is merely for shortening the command line,
830 # since -Wno-FOO needs to be added below regardless.
831 nw="$nw -Wmissing-field-initializers"
833 nw="$nw -Wtype-limits"
834 nw="$nw -Wunused-parameter"
836 # clang is unduly picky about some things.
837 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
844 [emacs_cv_clang=yes],
845 [emacs_cv_clang=no])])
846 if test $emacs_cv_clang = yes; then
847 nw="$nw -Wcast-align"
850 gl_MANYWARN_ALL_GCC([ws])
851 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
855 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
856 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
857 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
858 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
859 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
860 gl_WARN_ADD([-Wno-format-nonliteral])
862 # In spite of excluding -Wlogical-op above, it is enabled, as of
863 # gcc 4.5.0 20090517.
864 gl_WARN_ADD([-Wno-logical-op])
866 # More things that clang is unduly picky about.
867 if test $emacs_cv_clang = yes; then
868 gl_WARN_ADD([-Wno-format-extra-args])
869 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
870 gl_WARN_ADD([-Wno-unused-command-line-argument])
871 gl_WARN_ADD([-Wno-unused-value])
874 gl_WARN_ADD([-fdiagnostics-show-option])
875 gl_WARN_ADD([-funit-at-a-time])
877 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
878 AH_VERBATIM([FORTIFY_SOURCE],
879 [/* Enable compile-time and run-time bounds-checking, and some warnings,
880 without upsetting glibc 2.15+. */
881 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
882 # define _FORTIFY_SOURCE 2
885 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
887 # We use a slightly smaller set of warning options for lib/.
888 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
890 nw="$nw -Wunused-macros"
892 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
893 AC_SUBST([GNULIB_WARN_CFLAGS])
898 dnl Some other nice autoconf tests.
899 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
902 dnl if test "x$RANLIB" = x; then
907 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
908 dnl can be made to directories. This is not relevant for our usage, and
909 dnl excludes some cases that work fine for us. Eg MS Windows or files
910 dnl hosted on AFS, both examples where simple links work, but links to
911 dnl directories fail. We use a cut-down version instead.
914 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
915 rm -f conf$$ conf$$.file
917 LN_S_FILEONLY='cp -p'
919 if (echo >conf$$.file) 2>/dev/null; then
920 if ln -s conf$$.file conf$$ 2>/dev/null; then
921 LN_S_FILEONLY='ln -s'
922 elif ln conf$$.file conf$$ 2>/dev/null; then
927 rm -f conf$$ conf$$.file
929 if test "$LN_S_FILEONLY" = "ln -s"; then
932 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
935 AC_SUBST(LN_S_FILEONLY)
938 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
939 dnl doesn't support links to directories, as in "ln file dir". But that
940 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
941 dnl executables at "make install" time.
942 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
943 dnl for more details.
944 if test "$opsys" = "mingw32"; then
948 AC_PATH_PROG(INSTALL_INFO, install-info, :,
949 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
950 dnl Don't use GZIP, which is used by gzip for additional parameters.
951 AC_PATH_PROG(GZIP_PROG, gzip)
953 if test $opsys = gnu-linux; then
954 AC_PATH_PROG(PAXCTL, paxctl,,
955 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
956 if test "X$PAXCTL" != X; then
957 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
958 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
959 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
960 else AC_MSG_RESULT(no); PAXCTL=""; fi])
964 ## Need makeinfo >= 4.7 (?) to build the manuals.
965 AC_PATH_PROG(MAKEINFO, makeinfo, no)
966 dnl By this stage, configure has already checked for egrep and set EGREP,
967 dnl or exited with an error if no egrep was found.
968 if test "$MAKEINFO" != "no"; then
970 $MAKEINFO --version 2> /dev/null |
971 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
977 ## Makeinfo is unusual. For a released Emacs, the manuals are
978 ## pre-built, and not deleted by the normal clean rules. makeinfo is
979 ## therefore in the category of "special tools" not normally required, which
980 ## configure does not have to check for (eg autoconf itself).
981 ## In a Bazaar checkout on the other hand, the manuals are not included.
982 ## So makeinfo is a requirement to build from Bazaar, and configure
983 ## should test for it as it does for any other build requirement.
984 ## We use the presence of $srcdir/info/emacs to distinguish a release,
985 ## with pre-built manuals, from a Bazaar checkout.
988 if test "$MAKEINFO" = "no"; then
990 if test "x${with_makeinfo}" = "xno"; then
992 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
993 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
994 source tree does not seem to have pre-built manuals in the `info' directory.
995 Either install a suitable version of makeinfo, or re-run configure
996 with the `--without-makeinfo' option to build without the manuals.] )
999 AC_SUBST(HAVE_MAKEINFO)
1001 dnl Just so that there is only a single place we need to edit.
1003 INFO_OPTS=--no-split
1007 if test $opsys = mingw32; then
1008 DOCMISC_W32=efaq-w32
1012 AC_SUBST(DOCMISC_W32)
1014 dnl Add our options to ac_link now, after it is set up.
1016 if test x$GCC = xyes; then
1017 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1018 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1020 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1021 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1024 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1025 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1026 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1027 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1028 dnl if not built to support GNU ld.
1030 late_LDFLAGS=$LDFLAGS
1031 if test x$GCC = xyes; then
1032 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
1034 LDFLAGS="$LDFLAGS -znocombreloc"
1037 AC_MSG_CHECKING([for -znocombreloc])
1038 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1039 [AC_MSG_RESULT(yes)],
1040 LDFLAGS=$late_LDFLAGS
1041 [AC_MSG_RESULT(no)])
1044 dnl The function dump-emacs will not be defined and temacs will do
1045 dnl (load "loadup") automatically unless told otherwise.
1046 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1048 your-opsys-here) CANNOT_DUMP=yes ;;
1051 test "$CANNOT_DUMP" = "yes" && \
1052 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1054 AC_SUBST(CANNOT_DUMP)
1057 UNEXEC_OBJ=unexelf.o
1059 # MSDOS uses unexcoff.o
1061 UNEXEC_OBJ=unexaix.o
1067 UNEXEC_OBJ=unexmacosx.o
1070 UNEXEC_OBJ=unexhp9k800.o
1073 UNEXEC_OBJ=unexw32.o
1076 # Use the Solaris dldump() function, called from unexsol.c, to dump
1077 # emacs, instead of the generic ELF dump code found in unexelf.c.
1078 # The resulting binary has a complete symbol table, and is better
1079 # for debugging and other observability tools (debuggers, pstack, etc).
1081 # If you encounter a problem using dldump(), please consider sending
1082 # a message to the OpenSolaris tools-linking mailing list:
1083 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1085 # It is likely that dldump() works with older Solaris too, but this has
1086 # not been tested, so for now this change is for Solaris 10 or newer.
1087 UNEXEC_OBJ=unexsol.o
1094 ## Let `ld' find image libs and similar things in /usr/local/lib.
1095 ## The system compiler, GCC, has apparently been modified to not
1096 ## look there, contrary to what a stock GCC would do.
1097 ### It's not our place to do this. See bug#10313#17.
1098 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1103 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1104 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1108 ### It's not our place to do this. See bug#10313#17.
1109 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1114 ## Han Boetes <han@boetes.org> says this is necessary,
1115 ## otherwise Emacs dumps core on elf systems.
1116 LD_SWITCH_SYSTEM="-Z"
1119 AC_SUBST(LD_SWITCH_SYSTEM)
1121 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1123 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1124 ## which has not been defined yet. When this was handled with cpp,
1125 ## it was expanded to null when configure sourced the s/*.h file.
1126 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1127 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1128 ## (or somesuch), but because it is supposed to go at the _front_
1129 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1130 ## Compare with the gnu-linux case below, which added to the end
1131 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1132 ## LD_SWITCH_SYSTEM_TEMACS.
1135 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1142 AC_CHECK_DECL([__ELF__])
1143 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1144 ## With ELF, make sure that all common symbols get allocated to in the
1145 ## data section. Otherwise, the dump of temacs may miss variables in
1146 ## the shared library that have been initialized. For example, with
1147 ## GNU libc, __malloc_initialized would normally be resolved to the
1148 ## shared library's .bss section, which is fatal.
1149 if test "x$GCC" = "xyes"; then
1150 C_SWITCH_MACHINE="-fno-common"
1152 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1155 UNEXEC_OBJ=unexalpha.o
1159 AC_SUBST(C_SWITCH_MACHINE)
1161 AC_SUBST(UNEXEC_OBJ)
1164 ## Some programs in src produce warnings saying certain subprograms
1165 ## are too complex and need a MAXMEM value greater than 2000 for
1166 ## additional optimization. --nils@exp-math.uni-essen.de
1167 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1168 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1169 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1170 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1171 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1172 AC_SUBST(C_SWITCH_SYSTEM)
1177 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1178 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1180 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1182 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1184 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1186 ## Motif needs -lgen.
1187 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1190 AC_SUBST(LIBS_SYSTEM)
1192 ### Make sure subsequent tests use flags consistent with the build flags.
1194 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1195 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1197 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1200 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1201 AC_DEFUN([AC_TYPE_SIZE_T])
1202 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1203 AC_DEFUN([AC_TYPE_UID_T])
1207 dnl Current possibilities handled by sed (aix4-2 -> aix,
1208 dnl gnu-linux -> gnu/linux, etc.):
1209 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1210 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1211 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1218 ## Adding -lm confuses the dynamic linker, so omit it.
1221 freebsd | dragonfly )
1222 SYSTEM_TYPE=berkeley-unix
1224 gnu-linux | gnu-kfreebsd )
1226 hpux10-20 | hpux11 )
1230 SYSTEM_TYPE=windows-nt
1232 dnl NB this may be adjusted below.
1234 SYSTEM_TYPE=berkeley-unix
1238 SYSTEM_TYPE=usg-unix-v
1244 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1245 [The type of system you are compiling for; sets `system-type'.])
1248 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1249 pre_PKG_CONFIG_LIBS=$LIBS
1251 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1253 dnl This function definition taken from Gnome 2.0
1254 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1255 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1256 dnl also defines GSTUFF_PKG_ERRORS on error
1257 AC_DEFUN([PKG_CHECK_MODULES], [
1260 if test "$PKG_CONFIG" = "no" ; then
1261 ifelse([$4], , [AC_MSG_ERROR([
1262 *** 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])
1264 PKG_CONFIG_MIN_VERSION=0.9.0
1265 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1266 AC_MSG_CHECKING(for $2)
1268 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1269 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1270 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1277 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1278 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1279 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1285 ## If we have a custom action on failure, don't print errors, but
1286 ## do set a variable so people can do so. Do it in a subshell
1287 ## to capture any diagnostics in invoking pkg-config.
1288 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1289 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1295 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1296 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1300 if test $succeeded = yes; then
1301 ifelse([$3], , :, [$3])
1303 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.])], [$4])
1308 if test "${with_sound}" != "no"; then
1309 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1310 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1311 have_sound_header=yes, [], [
1313 #define WIN32_LEAN_AND_MEAN
1314 #include <windows.h>
1317 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1318 AC_MSG_ERROR([OSS sound support requested but not found.])
1320 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1321 # Emulation library used on NetBSD.
1322 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1323 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1324 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1325 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1326 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1330 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1332 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1333 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1334 if test $HAVE_ALSA = yes; then
1335 SAVE_CFLAGS="$CFLAGS"
1337 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1338 LIBS="$ALSA_LIBS $LIBS"
1339 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1340 emacs_alsa_normal=yes,
1341 emacs_alsa_normal=no)
1342 if test "$emacs_alsa_normal" != yes; then
1343 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1344 [[snd_lib_error_set_handler (0);]])],
1345 emacs_alsa_subdir=yes,
1346 emacs_alsa_subdir=no)
1347 if test "$emacs_alsa_subdir" != yes; then
1348 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1350 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1353 CFLAGS="$SAVE_CFLAGS"
1355 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1356 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1357 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1358 elif test "${with_sound}" = "alsa"; then
1359 AC_MSG_ERROR([ALSA sound support requested but not found.])
1361 fi dnl with_sound = alsa|yes
1363 dnl Define HAVE_SOUND if we have sound support. We know it works and
1364 dnl compiles only on the specified platforms. For others, it
1365 dnl probably doesn't make sense to try.
1366 dnl FIXME So surely we should bypass this whole section if not using
1367 dnl one of these platforms?
1368 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1370 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1371 dnl Adjust the --with-sound help text if you change this.
1372 gnu-linux|freebsd|netbsd|mingw32)
1373 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1379 AC_SUBST(CFLAGS_SOUND)
1382 dnl checks for header files
1383 AC_CHECK_HEADERS_ONCE(
1387 sys/utsname.h pwd.h utmp.h util.h)
1389 AC_MSG_CHECKING(if personality LINUX32 can be set)
1390 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1391 emacs_cv_personality_linux32=yes,
1392 emacs_cv_personality_linux32=no)
1393 AC_MSG_RESULT($emacs_cv_personality_linux32)
1395 if test $emacs_cv_personality_linux32 = yes; then
1396 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1397 [Define to 1 if personality LINUX32 can be set.])
1400 dnl On Solaris 8 there's a compilation warning for term.h because
1401 dnl it doesn't define `bool'.
1402 AC_CHECK_HEADERS(term.h, , , -)
1404 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1406 if test $ac_cv_have_decl_sys_siglist != yes; then
1407 # For Tru64, at least:
1408 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1413 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1414 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1415 #if HAVE_SYS_SOCKET_H
1416 #include <sys/socket.h>
1418 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1419 #if HAVE_SYS_SOCKET_H
1420 #include <sys/socket.h>
1422 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1423 #if HAVE_SYS_SOCKET_H
1424 #include <sys/socket.h>
1427 dnl checks for structure members
1428 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1429 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1430 struct ifreq.ifr_addr,
1431 struct ifreq.ifr_addr.sa_len], , ,
1432 [AC_INCLUDES_DEFAULT
1433 #if HAVE_SYS_SOCKET_H
1434 #include <sys/socket.h>
1440 dnl Check for endianness.
1441 dnl AC_C_BIGENDIAN is done by gnulib.
1443 dnl check for Make feature
1444 dnl AC_PROG_MAKE_SET is done by Automake.
1449 dnl check for GNU Make if we have GCC and autodepend is on.
1450 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1451 AC_MSG_CHECKING([whether we are using GNU Make])
1453 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1454 if test "x$testval" != x; then
1457 ac_enable_autodepend=no
1459 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1460 if test $HAVE_GNU_MAKE = yes; then
1461 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1462 SAVE_CFLAGS="$CFLAGS"
1463 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1464 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1465 CFLAGS="$SAVE_CFLAGS"
1466 test -f deps.d || ac_enable_autodepend=no
1468 AC_MSG_RESULT([$ac_enable_autodepend])
1470 if test $ac_enable_autodepend = yes; then
1471 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1472 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1473 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1474 deps_frag=autodeps.mk
1477 deps_frag=$srcdir/src/$deps_frag
1480 AC_SUBST_FILE(deps_frag)
1483 lisp_frag=$srcdir/src/lisp.mk
1484 AC_SUBST_FILE(lisp_frag)
1487 dnl checks for operating system services
1488 AC_SYS_LONG_FILE_NAMES
1490 #### Choose a window system.
1492 ## We leave window_system equal to none if
1493 ## we end up building without one. Any new window system should
1494 ## set window_system to an appropriate value and add objects to
1495 ## window-system-specific substs.
1499 if test "$no_x" != yes; then
1503 LD_SWITCH_X_SITE_RPATH=
1504 if test "${x_libraries}" != NONE; then
1505 if test -n "${x_libraries}"; then
1506 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1507 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1509 x_default_search_path=""
1510 x_search_path=${x_libraries}
1511 if test -z "${x_search_path}"; then
1512 x_search_path=/usr/lib
1514 for x_library in `echo ${x_search_path}: | \
1515 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1517 ${x_library}/X11/%L/%T/%N%C%S:\
1518 ${x_library}/X11/%l/%T/%N%C%S:\
1519 ${x_library}/X11/%T/%N%C%S:\
1520 ${x_library}/X11/%L/%T/%N%S:\
1521 ${x_library}/X11/%l/%T/%N%S:\
1522 ${x_library}/X11/%T/%N%S"
1523 if test x"${x_default_search_path}" = x; then
1524 x_default_search_path=${x_search_path}
1526 x_default_search_path="${x_search_path}:${x_default_search_path}"
1530 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1532 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1533 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1536 if test x"${x_includes}" = x; then
1537 bitmapdir=/usr/include/X11/bitmaps
1539 # accumulate include directories that have X11 bitmap subdirectories
1541 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1542 if test -d "${bmd}/X11/bitmaps"; then
1543 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1545 if test -d "${bmd}/bitmaps"; then
1546 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1549 if test ${bmd_acc} != "dummyval"; then
1550 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1557 tmp_CPPFLAGS="$CPPFLAGS"
1558 tmp_CFLAGS="$CFLAGS"
1559 CPPFLAGS="$CPPFLAGS -x objective-c"
1560 CFLAGS="$CFLAGS -x objective-c"
1563 if test "${with_ns}" != no; then
1564 if test "${opsys}" = darwin; then
1566 ns_appdir=`pwd`/nextstep/Emacs.app
1567 ns_appbindir=${ns_appdir}/Contents/MacOS
1568 ns_appresdir=${ns_appdir}/Contents/Resources
1569 ns_appsrc=Cocoa/Emacs.base
1570 elif test -f $GNUSTEP_CONFIG_FILE; then
1572 ns_appdir=`pwd`/nextstep/Emacs.app
1573 ns_appbindir=${ns_appdir}
1574 ns_appresdir=${ns_appdir}/Resources
1575 ns_appsrc=GNUstep/Emacs.base
1576 dnl FIXME sourcing this several times in subshells seems inefficient.
1577 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1578 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1579 dnl I seemed to need these as well with GNUstep-startup 0.25.
1580 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1581 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1582 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1583 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1584 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1585 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1586 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1587 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1588 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1589 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1590 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1591 dnl If they had chosen to either define it or not, we could have
1592 dnl just used AC_CHECK_DECL here.
1593 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1594 emacs_cv_objc_exceptions,
1595 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1596 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1600 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1601 if test $emacs_cv_objc_exceptions = yes; then
1602 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1603 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1604 [Define if GNUstep uses ObjC exceptions.])
1605 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1609 dnl This is only used while we test the NS headers, it gets reset below.
1610 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1612 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1613 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1614 files are missing or cannot be compiled.])])
1616 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1618 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1619 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1622 #error "OSX 10.4 or newer required"
1626 ns_osx_have_104=yes,
1628 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1630 ns_have_nsinteger=yes,
1631 ns_have_nsinteger=no)
1632 if test $ns_osx_have_104 = no; then
1633 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1635 if test $ns_have_nsinteger = yes; then
1636 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1640 AC_SUBST(LIBS_GNUSTEP)
1642 INSTALL_ARCH_INDEP_EXTRA=install-etc
1643 ns_self_contained=no
1646 if test "${HAVE_NS}" = yes; then
1647 if test "$with_toolkit_scroll_bars" = "no"; then
1648 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1651 window_system=nextstep
1652 # set up packaging dirs
1653 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1654 ns_self_contained=yes
1655 prefix=${ns_appresdir}
1656 exec_prefix=${ns_appbindir}
1657 dnl This one isn't really used, only archlibdir is.
1658 libexecdir="\${ns_appbindir}/libexec"
1659 archlibdir="\${ns_appbindir}/libexec"
1660 etcdocdir="\${ns_appresdir}/etc"
1661 etcdir="\${ns_appresdir}/etc"
1662 dnl FIXME maybe set datarootdir instead.
1663 dnl That would also get applications, icons, man.
1664 infodir="\${ns_appresdir}/info"
1665 mandir="\${ns_appresdir}/man"
1666 lispdir="\${ns_appresdir}/lisp"
1667 leimdir="\${ns_appresdir}/leim"
1668 INSTALL_ARCH_INDEP_EXTRA=
1670 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1672 CFLAGS="$tmp_CFLAGS"
1673 CPPFLAGS="$tmp_CPPFLAGS"
1674 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1675 AC_SUBST(ns_self_contained)
1677 AC_SUBST(NS_OBJC_OBJ)
1688 if test "${with_w32}" != no; then
1691 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1692 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1693 cannot be found.])])
1696 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1699 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1704 if test "${opsys}" = "mingw32"; then
1705 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1706 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1707 #include <windows.h>
1708 #include <usp10.h>]],
1709 [[PIMAGE_NT_HEADERS pHeader;
1710 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1711 [emacs_cv_w32api=yes
1714 AC_MSG_RESULT($emacs_cv_w32api)
1715 if test "${emacs_cv_w32api}" = "no"; then
1716 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1727 if test "${HAVE_W32}" = "yes"; then
1728 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1729 AC_CHECK_TOOL(WINDRES, [windres],
1730 [AC_MSG_ERROR([No resource compiler found.])])
1731 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1732 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1733 EMACSRES="emacs.res"
1734 case "$canonical" in
1735 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1736 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1738 UPDATE_MANIFEST=update-game-score.exe.manifest
1739 if test "${opsys}" = "cygwin"; then
1740 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1741 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1742 # Tell the linker that emacs.res is an object (which we compile from
1743 # the rc file), not a linker script.
1744 W32_RES_LINK="-Wl,emacs.res"
1746 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1747 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1748 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1749 W32_RES_LINK="\$(EMACSRES)"
1750 CLIENTRES="emacsclient.res"
1751 CLIENTW="emacsclientw\$(EXEEXT)"
1752 FIRSTFILE_OBJ=firstfile.o
1755 LIBS_ECLIENT="-lcomctl32"
1756 LIB_WSOCK32="-lwsock32"
1757 NTLIB="ntlib.$ac_objext"
1758 XARGS_LIMIT="-s 10000"
1764 AC_SUBST(EMACS_MANIFEST)
1765 AC_SUBST(UPDATE_MANIFEST)
1768 AC_SUBST(W32_RES_LINK)
1769 AC_SUBST(FIRSTFILE_OBJ)
1772 AC_SUBST(LIBS_ECLIENT)
1773 AC_SUBST(LIB_WSOCK32)
1775 AC_SUBST(XARGS_LIMIT)
1777 if test "${HAVE_W32}" = "yes"; then
1782 ## $window_system is now set to the window system we will
1785 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1786 # Too many warnings for now.
1788 nw="$nw -Wsuggest-attribute=const"
1789 nw="$nw -Wsuggest-attribute=noreturn"
1790 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1792 gl_WARN_ADD([-Wno-unused-variable])
1793 gl_WARN_ADD([-Wno-unused-but-set-variable])
1794 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1802 case "${window_system}" in
1807 case "${with_x_toolkit}" in
1808 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1809 motif ) USE_X_TOOLKIT=MOTIF ;;
1811 term_header=gtkutil.h
1812 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1813 dnl USE_X_TOOLKIT is set.
1814 USE_X_TOOLKIT=none ;;
1815 gtk2 ) with_gtk2=yes
1816 term_header=gtkutil.h
1817 USE_X_TOOLKIT=none ;;
1818 gtk3 ) with_gtk3=yes
1819 term_header=gtkutil.h
1820 USE_X_TOOLKIT=none ;;
1821 no ) USE_X_TOOLKIT=none ;;
1822 dnl If user did not say whether to use a toolkit, make this decision later:
1823 dnl use the toolkit if we have gtk, or X11R5 or newer.
1824 * ) USE_X_TOOLKIT=maybe ;;
1828 term_header=nsterm.h
1831 term_header=w32term.h
1835 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1836 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1837 if test "$HAVE_XSERVER" = true ||
1838 test -n "$DISPLAY" ||
1839 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1840 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1841 were found. You should install the relevant development files for X
1842 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1843 sure you have development files for image handling, i.e.
1844 tiff, gif, jpeg, png and xpm.
1845 If you are sure you want Emacs compiled without X window support, pass
1851 ### If we're using X11, we should use the X menu package.
1854 yes ) HAVE_MENUS=yes ;;
1857 # Does the opsystem file prohibit the use of the GNU malloc?
1858 # Assume not, until told otherwise.
1862 [whether malloc is Doug Lea style],
1863 [emacs_cv_var_doug_lea_malloc],
1866 [[#include <malloc.h>
1867 static void hook (void) {}]],
1868 [[malloc_set_state (malloc_get_state ());
1869 __after_morecore_hook = hook;
1870 __malloc_initialize_hook = hook;]])],
1871 [emacs_cv_var_doug_lea_malloc=yes],
1872 [emacs_cv_var_doug_lea_malloc=no])])
1873 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1876 dnl See comments in aix4-2.h about maybe using system malloc there.
1879 ## darwin ld insists on the use of malloc routines in the System framework.
1880 darwin|sol2-10) system_malloc=yes ;;
1883 if test "${system_malloc}" = "yes"; then
1884 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1887 (The GNU allocators don't work with this system configuration.)"
1891 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1892 VMLIMIT_OBJ=vm-limit.o
1894 AC_CHECK_HEADERS([sys/vlimit.h])
1895 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1898 [[extern char data_start[]; char ch;]],
1899 [[return data_start < &ch;]])],
1900 [emacs_cv_data_start=yes],
1901 [emacs_cv_data_start=no])])
1902 if test $emacs_cv_data_start = yes; then
1903 AC_DEFINE([HAVE_DATA_START], 1,
1904 [Define to 1 if data_start is the address of the start
1905 of the main data segment.])
1908 AC_SUBST(GMALLOC_OBJ)
1909 AC_SUBST(VMLIMIT_OBJ)
1911 if test "$doug_lea_malloc" = "yes" ; then
1912 if test "$GNU_MALLOC" = yes ; then
1914 (Using Doug Lea's new malloc from the GNU C Library.)"
1916 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1917 [Define to 1 if you are using the GNU C Library.])
1919 ## Use mmap directly for allocating larger buffers.
1920 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1921 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1922 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1924 gnu*) REL_ALLOC=no ;;
1928 if test x"${REL_ALLOC}" = x; then
1929 REL_ALLOC=${GNU_MALLOC}
1932 use_mmap_for_buffers=no
1934 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1938 if test $use_mmap_for_buffers = yes; then
1939 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1943 LIBS="$LIBS_SYSTEM $LIBS"
1945 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1946 AC_CHECK_LIB(dnet, dnet_ntoa)
1947 dnl This causes -lresolv to get used in subsequent tests,
1948 dnl which causes failures on some systems such as HPUX 9.
1949 dnl AC_CHECK_LIB(resolv, gethostbyname)
1951 dnl FIXME replace main with a function we actually want from this library.
1952 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1954 dnl Check if pthreads is available.
1956 AC_CHECK_HEADERS_ONCE(pthread.h)
1957 if test "$ac_cv_header_pthread_h"; then
1958 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1959 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1960 dnl testing for pthread_self if Emacs uses gmalloc.c.
1961 if test "$GMALLOC_OBJ" = gmalloc.o; then
1962 emacs_pthread_function=pthread_atfork
1964 emacs_pthread_function=pthread_self
1966 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1968 if test "$HAVE_PTHREAD" = yes; then
1969 case "${canonical}" in
1971 *) LIB_PTHREAD="-lpthread"
1972 LIBS="$LIB_PTHREAD $LIBS" ;;
1974 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1976 AC_SUBST([LIB_PTHREAD])
1978 AC_CHECK_LIB(pthreads, cma_open)
1980 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1981 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1982 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1983 ## added to LIBS in configure would never contain the pthreads part,
1984 ## but the value used in Makefiles might. FIXME?
1986 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1987 ## be harmless on older versions of X where it happens to exist.
1988 test "$opsys" = "aix4-2" && \
1989 test $ac_cv_lib_pthreads_cma_open = yes && \
1990 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1992 dnl Check for need for bigtoc support on IBM AIX
1996 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1998 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1999 *) gdb_cv_bigtoc=-bbigtoc ;;
2002 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2003 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2008 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2009 # used for the tests that follow. We set them back to REAL_CFLAGS and
2010 # REAL_CPPFLAGS later on.
2012 REAL_CFLAGS="$CFLAGS"
2013 REAL_CPPFLAGS="$CPPFLAGS"
2015 if test "${HAVE_X11}" = "yes"; then
2016 DEFS="$C_SWITCH_X_SITE $DEFS"
2017 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2019 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2020 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2022 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2023 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2024 # but it's more convenient here to set LD_RUN_PATH since this
2025 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2026 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2027 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2031 if test "${opsys}" = "gnu-linux"; then
2032 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2033 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2034 [[XOpenDisplay ("foo");]])],
2035 [xgnu_linux_first_failure=no],
2036 [xgnu_linux_first_failure=yes])
2037 if test "${xgnu_linux_first_failure}" = "yes"; then
2038 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2039 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2040 OLD_CPPFLAGS="$CPPFLAGS"
2042 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2043 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2044 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2045 LIBS="$LIBS -b i486-linuxaout"
2046 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2047 [[XOpenDisplay ("foo");]])],
2048 [xgnu_linux_second_failure=no],
2049 [xgnu_linux_second_failure=yes])
2050 if test "${xgnu_linux_second_failure}" = "yes"; then
2051 # If we get the same failure with -b, there is no use adding -b.
2052 # So take it out. This plays safe.
2053 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2054 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2055 CPPFLAGS="$OLD_CPPFLAGS"
2066 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2067 # header files included from there.
2068 AC_MSG_CHECKING(for Xkb)
2069 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2070 #include <X11/XKBlib.h>]],
2071 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2072 emacs_xkb=yes, emacs_xkb=no)
2073 AC_MSG_RESULT($emacs_xkb)
2074 if test $emacs_xkb = yes; then
2075 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2078 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2079 XScreenNumberOfScreen)
2082 if test "${window_system}" = "x11"; then
2083 AC_MSG_CHECKING(X11 version 6)
2084 AC_CACHE_VAL(emacs_cv_x11_version_6,
2085 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2086 [[#if XlibSpecificationRelease < 6
2089 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2090 if test $emacs_cv_x11_version_6 = yes; then
2091 AC_MSG_RESULT(6 or newer)
2092 AC_DEFINE(HAVE_X11R6, 1,
2093 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2094 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2095 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2099 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2100 [Define if you have usable X11R6-style XIM support.])
2104 AC_MSG_RESULT(before 6)
2109 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2111 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2112 if test "${with_rsvg}" != "no"; then
2113 RSVG_REQUIRED=2.11.0
2114 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2116 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2117 AC_SUBST(RSVG_CFLAGS)
2120 if test $HAVE_RSVG = yes; then
2121 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2122 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2123 LIBS="$RSVG_LIBS $LIBS"
2129 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2130 if test "${with_imagemagick}" != "no"; then
2131 ## 6.2.8 is the earliest version known to work, but earlier versions
2132 ## might work - let us know if you find one.
2133 ## 6.0.7 does not work. See bug#7955.
2134 ## 6.8.2 makes Emacs crash; see Bug#13867.
2135 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2136 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2137 AC_SUBST(IMAGEMAGICK_CFLAGS)
2138 AC_SUBST(IMAGEMAGICK_LIBS)
2140 if test $HAVE_IMAGEMAGICK = yes; then
2141 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2142 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2143 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2144 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2152 gtk_term_header=$term_header
2155 if test "${opsys}" != "mingw32"; then
2156 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2159 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2161 dnl Checks for libraries.
2162 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2163 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2164 AC_MSG_ERROR($GTK_PKG_ERRORS)
2166 if test "$pkg_check_gtk" = "yes"; then
2167 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2168 GTK_OBJ=emacsgtkfixed.o
2169 gtk_term_header=gtkutil.h
2170 USE_GTK_TOOLKIT="GTK3"
2171 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2172 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2173 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2177 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2181 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2184 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2186 dnl Checks for libraries.
2187 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2188 if test "$pkg_check_gtk" = "no" &&
2189 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2191 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2193 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2197 if test x"$pkg_check_gtk" = xyes; then
2199 AC_SUBST(GTK_CFLAGS)
2201 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2202 CFLAGS="$CFLAGS $GTK_CFLAGS"
2203 LIBS="$GTK_LIBS $LIBS"
2204 dnl Try to compile a simple GTK program.
2205 AC_MSG_CHECKING([whether GTK compiles])
2209 [[/* Check the Gtk and Glib APIs. */
2210 #include <gtk/gtk.h>
2211 #include <glib-object.h>
2213 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2217 GtkSettings *gs = 0;
2218 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2219 strict C prohibits this. Use gtk_main_iteration to test that the
2220 libraries are there. */
2221 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2222 0, 0, 0, G_CALLBACK (callback), 0))
2223 gtk_main_iteration ();
2226 AC_MSG_RESULT([$GTK_COMPILES])
2227 if test "${GTK_COMPILES}" != "yes"; then
2229 if test "$USE_X_TOOLKIT" != "maybe"; then
2230 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2234 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2235 GTK_OBJ="gtkutil.o $GTK_OBJ"
2236 term_header=$gtk_term_header
2238 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2241 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2242 closing open displays. This is no problem if you just use
2243 one display, but if you use more than one and close one of them
2253 if test "${HAVE_GTK}" = "yes"; then
2255 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2256 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2257 if test "$with_toolkit_scroll_bars" != no; then
2258 with_toolkit_scroll_bars=yes
2261 dnl Check if we have the old file selection dialog declared and
2262 dnl in the link library. In 2.x it may be in the library,
2263 dnl but not declared if deprecated featured has been selected out.
2264 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2265 HAVE_GTK_FILE_SELECTION=no
2266 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2267 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2268 #include <gtk/gtk.h>])
2269 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2270 AC_CHECK_FUNCS(gtk_file_selection_new)
2273 dnl Same as above for gtk_handle_box.
2274 HAVE_GTK_HANDLE_BOX=no
2275 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2276 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2277 #include <gtk/gtk.h>])
2278 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2279 AC_CHECK_FUNCS(gtk_handle_box_new)
2282 dnl Same as above for gtk_tearoff_menu_item.
2283 HAVE_GTK_TEAROFF_MENU_ITEM=no
2284 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2285 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2286 #include <gtk/gtk.h>])
2287 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2288 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2291 dnl Check for functions introduced in 2.14 and later.
2292 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2293 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2294 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2295 gtk_orientable_set_orientation \
2296 gtk_window_set_has_resize_grip)
2298 term_header=gtkutil.h
2301 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2302 dnl other platforms.
2305 if test "${with_dbus}" = "yes"; then
2306 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2307 if test "$HAVE_DBUS" = yes; then
2308 LIBS="$LIBS $DBUS_LIBS"
2309 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2310 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2311 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2313 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2314 dbus_type_is_valid \
2315 dbus_validate_bus_name \
2316 dbus_validate_path \
2317 dbus_validate_interface \
2318 dbus_validate_member)
2324 dnl GSettings has been tested under GNU/Linux only.
2326 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2327 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2328 if test "$HAVE_GSETTINGS" = "yes"; then
2329 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2330 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2331 SETTINGS_LIBS="$GSETTINGS_LIBS"
2335 dnl GConf has been tested under GNU/Linux only.
2336 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2338 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2339 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2340 if test "$HAVE_GCONF" = yes; then
2341 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2342 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2343 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2344 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2348 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2349 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2350 if test "$HAVE_GOBJECT" = "yes"; then
2351 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2352 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2354 SAVE_CFLAGS="$CFLAGS"
2356 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2357 LIBS="$SETTINGS_LIBS $LIBS"
2358 AC_CHECK_FUNCS([g_type_init])
2359 CFLAGS="$SAVE_CFLAGS"
2362 AC_SUBST(SETTINGS_CFLAGS)
2363 AC_SUBST(SETTINGS_LIBS)
2366 dnl SELinux is available for GNU/Linux only.
2369 if test "${with_selinux}" = "yes"; then
2370 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2371 if test "$HAVE_LIBSELINUX" = yes; then
2372 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2373 LIBSELINUX_LIBS=-lselinux
2376 AC_SUBST(LIBSELINUX_LIBS)
2379 if test "${with_gnutls}" = "yes" ; then
2380 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2381 if test "${HAVE_GNUTLS}" = "yes"; then
2382 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2385 # Windows loads GnuTLS dynamically
2386 if test "${opsys}" = "mingw32"; then
2389 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2390 LIBS="$LIBGNUTLS_LIBS $LIBS"
2394 AC_SUBST(LIBGNUTLS_LIBS)
2395 AC_SUBST(LIBGNUTLS_CFLAGS)
2400 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2401 dnl a particular library. This doesn't make much sense?
2402 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2403 with_file_notification=no
2406 dnl MS Windows native file monitor is available for mingw32 only.
2407 case $with_file_notification,$opsys in
2408 w32,* | yes,mingw32)
2409 AC_CHECK_HEADER(windows.h)
2410 if test "$ac_cv_header_windows_h" = yes ; then
2411 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2412 NOTIFY_OBJ=w32notify.o
2413 NOTIFY_SUMMARY="yes (w32)"
2417 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2418 dnl has been added in glib 2.24. It has been tested under
2419 dnl GNU/Linux only. We take precedence over inotify, but this makes
2420 dnl only sense when glib has been compiled with inotify support. How
2422 case $with_file_notification,$NOTIFY_OBJ in
2424 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2425 if test "$HAVE_GFILENOTIFY" = "yes"; then
2426 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2427 NOTIFY_OBJ=gfilenotify.o
2428 NOTIFY_SUMMARY="yes -lgio (gfile)"
2432 dnl inotify is only available on GNU/Linux.
2433 case $with_file_notification,$NOTIFY_OBJ in
2435 AC_CHECK_HEADER(sys/inotify.h)
2436 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2437 AC_CHECK_FUNC(inotify_init1)
2438 if test "$ac_cv_func_inotify_init1" = yes; then
2439 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2440 NOTIFY_OBJ=inotify.o
2441 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2446 case $with_file_notification,$NOTIFY_OBJ in
2447 yes,* | no,* | *,?*) ;;
2448 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2451 if test -n "$NOTIFY_OBJ"; then
2452 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2454 AC_SUBST(NOTIFY_OBJ)
2455 AC_SUBST(GFILENOTIFY_CFLAGS)
2456 AC_SUBST(GFILENOTIFY_LIBS)
2458 dnl Do not put whitespace before the #include statements below.
2459 dnl Older compilers (eg sunos4 cc) choke on it.
2462 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2463 if test "$with_xaw3d" != no; then
2464 AC_CACHE_VAL(emacs_cv_xaw3d,
2465 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2466 #include <X11/Intrinsic.h>
2467 #include <X11/Xaw3d/Simple.h>]],
2469 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2470 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2471 emacs_cv_xaw3d=no)])
2475 if test $emacs_cv_xaw3d = yes; then
2476 AC_MSG_CHECKING(for xaw3d)
2477 AC_MSG_RESULT([yes; using Lucid toolkit])
2481 AC_DEFINE(HAVE_XAW3D, 1,
2482 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2484 AC_MSG_CHECKING(for xaw3d)
2486 AC_MSG_CHECKING(for libXaw)
2487 AC_CACHE_VAL(emacs_cv_xaw,
2488 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2489 #include <X11/Intrinsic.h>
2490 #include <X11/Xaw/Simple.h>]],
2494 if test $emacs_cv_xaw = yes; then
2495 AC_MSG_RESULT([yes; using Lucid toolkit])
2498 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2499 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2501 AC_MSG_ERROR([No X toolkit could be found.
2502 If you are sure you want Emacs compiled without an X toolkit, pass
2504 to configure. Otherwise, install the development libraries for the toolkit
2505 that you want to use (e.g. Gtk+) and re-run configure.])
2510 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2513 if test "${USE_X_TOOLKIT}" != "none"; then
2514 AC_MSG_CHECKING(X11 toolkit version)
2515 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2516 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2517 [[#if XtSpecificationRelease < 6
2520 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2521 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2522 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2523 AC_MSG_RESULT(6 or newer)
2524 AC_DEFINE(HAVE_X11XTR6, 1,
2525 [Define to 1 if you have the X11R6 or newer version of Xt.])
2526 LIBXTR6="-lSM -lICE"
2528 ## Use libw.a along with X11R6 Xt.
2529 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2532 AC_MSG_RESULT(before 6)
2535 dnl If using toolkit, check whether libXmu.a exists.
2536 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2538 if test x$HAVE_X11XTR6 = xyes; then
2539 LIBS="-lXt -lSM -lICE $LIBS"
2543 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2544 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2545 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2549 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2550 dnl Why not just test for libxmu in the normal way?
2553 ## These systems don't supply Xmu.
2555 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2563 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2564 if test "${HAVE_X11}" = "yes"; then
2565 if test "${USE_X_TOOLKIT}" != "none"; then
2566 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2571 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2572 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2573 if test -d /usr/include/openmotif; then
2574 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2575 emacs_cv_openmotif=yes
2576 case "$canonical" in
2577 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2578 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2581 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2584 emacs_cv_openmotif=no
2586 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2587 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2588 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2591 Motif version prior to 2.1.
2593 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2594 if test $emacs_cv_motif_version_2_1 = yes; then
2595 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2596 if test x$emacs_cv_openmotif = xyes; then
2597 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2600 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2601 # We put this in CFLAGS temporarily to precede other -I options
2602 # that might be in CFLAGS temporarily.
2603 # We put this in CPPFLAGS where it precedes the other -I options.
2604 OLD_CPPFLAGS=$CPPFLAGS
2606 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2607 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2608 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2610 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2611 if test $emacs_cv_lesstif = yes; then
2612 # Make sure this -I option remains in CPPFLAGS after it is set
2613 # back to REAL_CPPFLAGS.
2614 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2615 # have those other -I options anyway. Ultimately, having this
2616 # directory ultimately in CPPFLAGS will be enough.
2617 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2618 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2621 CPPFLAGS=$OLD_CPPFLAGS
2624 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2625 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2628 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2629 dnl using Motif or Xaw3d is available, and unless
2630 dnl --with-toolkit-scroll-bars=no was specified.
2632 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2633 [Define to 1 if we should use toolkit scroll bars.])dnl
2634 USE_TOOLKIT_SCROLL_BARS=no
2635 if test "${with_toolkit_scroll_bars}" != "no"; then
2636 if test "${USE_X_TOOLKIT}" != "none"; then
2637 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2638 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2640 USE_TOOLKIT_SCROLL_BARS=yes
2641 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2642 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2643 USE_TOOLKIT_SCROLL_BARS=yes
2645 elif test "${HAVE_GTK}" = "yes"; then
2646 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2647 USE_TOOLKIT_SCROLL_BARS=yes
2648 elif test "${HAVE_NS}" = "yes"; then
2649 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2650 USE_TOOLKIT_SCROLL_BARS=yes
2651 elif test "${HAVE_W32}" = "yes"; then
2652 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2653 USE_TOOLKIT_SCROLL_BARS=yes
2657 dnl See if XIM is available.
2658 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2659 #include <X11/Xlib.h>
2660 #include <X11/Xresource.h>]],
2661 [[XIMProc callback;]])],
2663 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2666 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2668 if test "${with_xim}" != "no"; then
2669 AC_DEFINE(USE_XIM, 1,
2670 [Define to 1 if we should use XIM, if it is available.])
2674 if test "${HAVE_XIM}" != "no"; then
2676 if test "$GCC" = yes; then
2677 CFLAGS="$CFLAGS --pedantic-errors"
2679 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2680 #include <X11/Xlib.h>
2681 #include <X11/Xresource.h>]],
2687 XPointer *client_data;
2689 /* If we're not using GCC, it's probably not XFree86, and this is
2690 probably right, but we can't use something like --pedantic-errors. */
2691 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2692 char*, XIMProc, XPointer*);
2694 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2696 [emacs_cv_arg6_star=yes])
2697 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2698 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2699 either XPointer or XPointer*.])dnl
2700 if test "$emacs_cv_arg6_star" = yes; then
2701 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2703 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2708 ### Start of font-backend (under any platform) section.
2709 # (nothing here yet -- this is a placeholder)
2710 ### End of font-backend (under any platform) section.
2712 ### Start of font-backend (under X11) section.
2713 if test "${HAVE_X11}" = "yes"; then
2714 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2716 ## Use -lXft if available, unless `--with-xft=no'.
2718 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2721 if test "x${with_xft}" != "xno"; then
2723 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2724 ## Because xftfont.c uses XRenderQueryExtension, we also
2725 ## need to link to -lXrender.
2727 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2728 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2729 OLD_CPPFLAGS="$CPPFLAGS"
2730 OLD_CFLAGS="$CFLAGS"
2732 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2733 CFLAGS="$CFLAGS $XFT_CFLAGS"
2734 XFT_LIBS="-lXrender $XFT_LIBS"
2735 LIBS="$XFT_LIBS $LIBS"
2736 AC_CHECK_HEADER(X11/Xft/Xft.h,
2737 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2738 [[#include <X11/X.h>]])
2740 if test "${HAVE_XFT}" = "yes"; then
2741 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2743 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2745 CPPFLAGS="$OLD_CPPFLAGS"
2746 CFLAGS="$OLD_CFLAGS"
2748 fi # "${HAVE_XFT}" = "yes"
2749 fi # "$HAVE_XFT" != no
2750 fi # "x${with_xft}" != "xno"
2752 ## We used to allow building with FreeType and without Xft.
2753 ## However, the ftx font backend driver is not in good shape.
2754 if test "$HAVE_XFT" != "yes"; then
2755 dnl For the "Does Emacs use" message at the end.
2759 dnl Strict linkers fail with
2760 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2761 dnl if -lfreetype is not specified.
2762 dnl The following is needed to set FREETYPE_LIBS.
2763 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2766 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2770 if test "${HAVE_FREETYPE}" = "yes"; then
2771 AC_DEFINE(HAVE_FREETYPE, 1,
2772 [Define to 1 if using the freetype and fontconfig libraries.])
2773 if test "${with_libotf}" != "no"; then
2774 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2776 if test "$HAVE_LIBOTF" = "yes"; then
2777 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2778 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2779 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2780 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2781 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2782 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2783 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2787 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2788 dnl Does the new font backend require it, or can it work without it?
2792 if test "${HAVE_LIBOTF}" = yes; then
2793 if test "${with_m17n_flt}" != "no"; then
2794 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2795 if test "$HAVE_M17N_FLT" = "yes"; then
2796 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2807 ### End of font-backend (under X11) section.
2809 AC_SUBST(FREETYPE_CFLAGS)
2810 AC_SUBST(FREETYPE_LIBS)
2811 AC_SUBST(FONTCONFIG_CFLAGS)
2812 AC_SUBST(FONTCONFIG_LIBS)
2813 AC_SUBST(LIBOTF_CFLAGS)
2814 AC_SUBST(LIBOTF_LIBS)
2815 AC_SUBST(M17N_FLT_CFLAGS)
2816 AC_SUBST(M17N_FLT_LIBS)
2818 ### Use -lXpm if available, unless `--with-xpm=no'.
2819 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2822 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2823 if test "${with_xpm}" != "no"; then
2824 SAVE_CPPFLAGS="$CPPFLAGS"
2825 SAVE_LDFLAGS="$LDFLAGS"
2826 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2827 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2828 AC_CHECK_HEADER(X11/xpm.h,
2829 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2830 if test "${HAVE_XPM}" = "yes"; then
2831 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2832 AC_EGREP_CPP(no_return_alloc_pixels,
2833 [#include "X11/xpm.h"
2834 #ifndef XpmReturnAllocPixels
2835 no_return_alloc_pixels
2837 ], HAVE_XPM=no, HAVE_XPM=yes)
2839 if test "${HAVE_XPM}" = "yes"; then
2840 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2844 CPPFLAGS="$SAVE_CPPFLAGS"
2845 LDFLAGS="$SAVE_LDFLAGS"
2850 if test "${HAVE_XPM}" = "yes"; then
2851 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2856 if test "${HAVE_X11}" = "yes"; then
2857 if test "${with_xpm}" != "no"; then
2858 AC_CHECK_HEADER(X11/xpm.h,
2859 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2860 if test "${HAVE_XPM}" = "yes"; then
2861 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2862 AC_EGREP_CPP(no_return_alloc_pixels,
2863 [#include "X11/xpm.h"
2864 #ifndef XpmReturnAllocPixels
2865 no_return_alloc_pixels
2867 ], HAVE_XPM=no, HAVE_XPM=yes)
2869 if test "${HAVE_XPM}" = "yes"; then
2877 if test "${HAVE_XPM}" = "yes"; then
2878 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2883 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2884 ### slightly different requirements wrt image libraries (it doesn't
2885 ### use -lXpm because it loads the xpm shared library dynamically at
2887 if test "${opsys}" = "mingw32"; then
2888 if test "${with_xpm}" != "no"; then
2889 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2893 if test "${HAVE_XPM}" = "yes"; then
2894 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2900 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2901 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2904 if test "${opsys}" = "mingw32"; then
2905 if test "${with_jpeg}" != "no"; then
2906 dnl Checking for jpeglib.h can lose because of a redefinition of
2908 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2910 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2911 if test "${HAVE_JPEG}" = "yes"; then
2912 AC_DEFINE(HAVE_JPEG)
2913 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2914 [#include <jpeglib.h>
2915 version=JPEG_LIB_VERSION
2917 [AC_DEFINE(HAVE_JPEG)],
2918 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2921 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2922 if test "${with_jpeg}" != "no"; then
2923 dnl Checking for jpeglib.h can lose because of a redefinition of
2925 AC_CHECK_HEADER(jerror.h,
2926 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2929 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2930 if test "${HAVE_JPEG}" = "yes"; then
2931 AC_DEFINE(HAVE_JPEG)
2932 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2933 [#include <jpeglib.h>
2934 version=JPEG_LIB_VERSION
2936 [AC_DEFINE(HAVE_JPEG)],
2937 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2940 if test "${HAVE_JPEG}" = "yes"; then
2946 ### Use -lpng if available, unless `--with-png=no'.
2947 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2950 if test "${opsys}" = "mingw32"; then
2951 if test "${with_png}" != "no"; then
2952 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2954 if test "${HAVE_PNG}" = "yes"; then
2955 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2957 AC_CHECK_DECL(png_longjmp,
2959 [AC_DEFINE(PNG_DEPSTRUCT, [],
2960 [Define to empty to suppress deprecation warnings when building
2961 with --enable-gcc-warnings and with libpng versions before 1.5,
2962 which lack png_longjmp.])],
2963 [[#ifdef HAVE_LIBPNG_PNG_H
2964 # include <libpng/png.h>
2970 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2971 if test "${with_png}" != "no"; then
2972 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2973 # in /usr/include/libpng.
2974 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2975 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2976 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2980 if test "${HAVE_PNG}" = "yes"; then
2981 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2982 LIBPNG="-lpng -lz -lm"
2984 AC_CHECK_DECL(png_longjmp,
2986 [AC_DEFINE(PNG_DEPSTRUCT, [],
2987 [Define to empty to suppress deprecation warnings when building
2988 with --enable-gcc-warnings and with libpng versions before 1.5,
2989 which lack png_longjmp.])],
2990 [[#ifdef HAVE_LIBPNG_PNG_H
2991 # include <libpng/png.h>
3002 if test "${with_zlib}" != "no"; then
3004 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3006 case $ac_cv_search_inflateEnd in
3007 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3010 if test "${HAVE_ZLIB}" = "yes"; then
3011 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3012 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3013 if test "${opsys}" = "mingw32"; then
3020 ### Use -ltiff if available, unless `--with-tiff=no'.
3021 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3024 if test "${opsys}" = "mingw32"; then
3025 if test "${with_tiff}" != "no"; then
3026 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3028 if test "${HAVE_TIFF}" = "yes"; then
3029 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3031 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3032 if test "${with_tiff}" != "no"; then
3033 AC_CHECK_HEADER(tiffio.h,
3035 # At least one tiff package requires the jpeg library.
3036 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3037 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3040 if test "${HAVE_TIFF}" = "yes"; then
3041 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3042 dnl FIXME -lz -lm, as per libpng?
3048 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3049 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3052 if test "${opsys}" = "mingw32"; then
3053 if test "${with_gif}" != "no"; then
3054 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3056 if test "${HAVE_GIF}" = "yes"; then
3057 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3059 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3060 || test "${HAVE_W32}" = "yes"; then
3061 AC_CHECK_HEADER(gif_lib.h,
3062 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3063 # Earlier versions can crash Emacs.
3064 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3066 if test "$HAVE_GIF" = yes; then
3068 elif test "$HAVE_GIF" = maybe; then
3069 # If gif_lib.h but no libgif, try libungif.
3070 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3071 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3074 if test "${HAVE_GIF}" = "yes"; then
3075 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3080 dnl Check for required libraries.
3081 if test "${HAVE_X11}" = "yes"; then
3084 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3085 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3086 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3087 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3088 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3089 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3090 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3091 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3092 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3093 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3095 if test "X${MISSING}" != X; then
3096 AC_MSG_ERROR([The following required libraries were not found:
3098 Maybe some development libraries/packages are missing?
3099 If you don't want to link with them give
3101 as options to configure])
3105 ### Use -lgpm if available, unless `--with-gpm=no'.
3108 if test "${with_gpm}" != "no"; then
3109 AC_CHECK_HEADER(gpm.h,
3110 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3112 if test "${HAVE_GPM}" = "yes"; then
3113 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3119 dnl Check for malloc/malloc.h on darwin
3120 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3123 ### Use NeXTstep API to implement GUI.
3124 if test "${HAVE_NS}" = "yes"; then
3125 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3126 if test "${NS_IMPL_COCOA}" = "yes"; then
3127 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3129 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3130 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3131 # See also .m.o rule in Makefile.in */
3132 # FIXME: are all these flags really needed? Document here why. */
3133 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3134 ## Extra CFLAGS applied to src/*.m files.
3135 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3137 # We also have mouse menus.
3142 if test "${HAVE_W32}" = "yes"; then
3146 ### Use session management (-lSM -lICE) if available
3149 if test "${HAVE_X11}" = "yes"; then
3150 AC_CHECK_HEADER(X11/SM/SMlib.h,
3151 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3153 if test "${HAVE_X_SM}" = "yes"; then
3154 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3158 *) LIBS="$LIBXSM $LIBS" ;;
3164 ### Use XRandr (-lXrandr) if available
3166 if test "${HAVE_X11}" = "yes"; then
3167 XRANDR_REQUIRED=1.2.2
3168 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3169 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3170 if test $HAVE_XRANDR = no; then
3171 # Test old way in case pkg-config doesn't have it (older machines).
3172 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3173 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3174 if test $HAVE_XRANDR = yes; then
3175 XRANDR_LIBS=-lXrandr
3176 AC_SUBST(XRANDR_LIBS)
3179 if test $HAVE_XRANDR = yes; then
3180 SAVE_CFLAGS="$CFLAGS"
3182 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3183 LIBS="$XRANDR_LIBS $LIBS"
3184 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3185 CFLAGS="$SAVE_CFLAGS"
3188 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3192 ### Use Xinerama (-lXinerama) if available
3194 if test "${HAVE_X11}" = "yes"; then
3195 XINERAMA_REQUIRED=1.0.2
3196 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3197 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3199 if test $HAVE_XINERAMA = no; then
3200 # Test old way in case pkg-config doesn't have it (older machines).
3201 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3202 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3203 if test $HAVE_XINERAMA = yes; then
3204 XINERAMA_LIBS=-lXinerama
3205 AC_SUBST(XINERAMA_LIBS)
3208 if test $HAVE_XINERAMA = yes; then
3209 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3214 ### Use libxml (-lxml2) if available
3215 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3217 if test "${with_xml2}" != "no"; then
3218 ### I'm not sure what the version number should be, so I just guessed.
3219 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3220 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3221 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3222 SAVE_CPPFLAGS="$CPPFLAGS"
3223 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3224 AC_CHECK_HEADER(libxml/HTMLparser.h,
3225 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3226 [#include <libxml/HTMLparser.h>])])
3227 CPPFLAGS="$SAVE_CPPFLAGS"
3228 if test "${HAVE_LIBXML2}" = "yes"; then
3229 LIBXML2_LIBS="-lxml2"
3230 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3233 if test "${HAVE_LIBXML2}" = "yes"; then
3234 if test "${opsys}" != "mingw32"; then
3235 LIBS="$LIBXML2_LIBS $LIBS"
3236 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3240 if test "${HAVE_LIBXML2}" = "yes"; then
3241 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3248 AC_SUBST(LIBXML2_LIBS)
3249 AC_SUBST(LIBXML2_CFLAGS)
3251 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3252 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3253 if test "${opsys}" = "mingw32"; then
3254 emacs_cv_netdb_declares_h_errno=yes
3256 AC_CACHE_CHECK(whether netdb declares h_errno,
3257 emacs_cv_netdb_declares_h_errno,
3258 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3259 [[return h_errno;]])],
3260 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3261 if test $emacs_cv_netdb_declares_h_errno = yes; then
3262 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3265 # sqrt and other floating-point functions such as fmod and frexp
3266 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3267 if test "${opsys}" != "mingw32"; then
3268 AC_CHECK_LIB(m, sqrt)
3271 # Check for mail-locking functions in a "mail" library. Probably this should
3272 # have the same check as for liblockfile below.
3273 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3274 if test $have_mail = yes; then
3276 LIBS="$LIBS_MAIL $LIBS"
3277 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3281 dnl Debian, at least:
3282 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3283 if test $have_lockfile = yes; then
3284 LIBS_MAIL=-llockfile
3285 LIBS="$LIBS_MAIL $LIBS"
3286 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3288 # If we have the shared liblockfile, assume we must use it for mail
3289 # locking (e.g. Debian). If we couldn't link against liblockfile
3290 # (no liblockfile.a installed), ensure that we don't need to.
3291 dnl This works for files generally, not just executables.
3292 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3293 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3294 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3295 if test $ac_cv_prog_liblockfile = yes; then
3296 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3297 This probably means that movemail could lose mail.
3298 There may be a `development' package to install containing liblockfile.])
3301 AC_CHECK_HEADERS_ONCE(maillock.h)
3304 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3305 ## interlock access to the mail spool. The alternative is a lock file named
3306 ## /usr/spool/mail/$USER.lock.
3309 aix4-2) mail_lock="lockf" ;;
3311 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3313 ## On GNU/Linux systems, both methods are used by various mail programs.
3314 ## I assume most people are using newer mailers that have heard of flock.
3315 ## Change this if you need to.
3316 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3317 ## configure gets the right answers, and that means *NOT* using flock.
3318 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3319 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3320 ## Debian maintainer hasn't provided a clean fix for Emacs.
3321 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3322 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3323 ## correct logic. -- fx
3324 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3325 ## liblockfile is a Free Software replacement for libmail, used on
3326 ## Debian systems and elsewhere. -rfr.
3329 if test $have_mail = yes || test $have_lockfile = yes; then
3330 test $ac_cv_header_maillock_h = yes && mail_lock=no
3335 mail_lock="none-needed" ;;
3339 case "$mail_lock" in
3340 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3342 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3346 *) BLESSMAIL_TARGET="need-blessmail" ;;
3348 AC_SUBST(BLESSMAIL_TARGET)
3351 AC_CHECK_FUNCS(accept4 gethostname \
3352 getrusage get_current_dir_name \
3354 select getpagesize setlocale \
3355 getrlimit setrlimit shutdown getaddrinfo \
3356 strsignal setitimer \
3357 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3358 gai_strerror getline getdelim sync \
3359 difftime posix_memalign \
3360 getpwent endpwent getgrent endgrent \
3362 cfmakeraw cfsetspeed copysign __executable_start log2)
3364 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3365 ## has a broken `rint' in some library versions including math library
3366 ## version number A.09.05.
3367 ## You can fix the math library by installing patch number PHSS_4630.
3368 ## But we can fix it more reliably for Emacs by just not using rint.
3369 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3372 *) AC_CHECK_FUNCS(random rint) ;;
3375 dnl Cannot use AC_CHECK_FUNCS
3376 AC_CACHE_CHECK([for __builtin_unwind_init],
3377 emacs_cv_func___builtin_unwind_init,
3378 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3379 emacs_cv_func___builtin_unwind_init=yes,
3380 emacs_cv_func___builtin_unwind_init=no)])
3381 if test $emacs_cv_func___builtin_unwind_init = yes; then
3382 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3383 [Define to 1 if you have the `__builtin_unwind_init' function.])
3386 AC_CHECK_HEADERS_ONCE(sys/un.h)
3391 AC_CHECK_FUNCS(grantpt)
3393 # PTY-related GNU extensions.
3394 AC_CHECK_FUNCS(getpt posix_openpt)
3396 # Check this now, so that we will NOT find the above functions in ncurses.
3397 # That is because we have not set up to link ncurses in lib-src.
3398 # It's better to believe a function is not available
3399 # than to expect to find it in ncurses.
3400 # Also we need tputs and friends to be able to build at all.
3401 AC_MSG_CHECKING([for library containing tputs])
3402 # Run a test program that contains a call to tputs, a call that is
3403 # never executed. This tests whether a pre-'main' dynamic linker
3404 # works with the library. It's too much trouble to actually call
3405 # tputs in the test program, due to portability hassles. When
3406 # cross-compiling, assume the test program will run if it links.
3407 AC_DEFUN([tputs_link_source], [
3409 [[extern void tputs (const char *, int, int (*)(int));
3410 int main (int argc, char **argv)
3413 tputs (argv[0], 0, 0);
3417 if test "${opsys}" = "mingw32"; then
3420 # Maybe curses should be tried earlier?
3421 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3422 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3424 if test -z "$tputs_library"; then
3428 LIBS_TERMCAP=-l$tputs_library
3430 LIBS="$LIBS_TERMCAP $LIBS"
3432 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3433 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3435 if test "X$msg" != Xno; then
3440 AC_MSG_RESULT([$msg])
3441 if test "X$msg" = Xno; then
3442 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3443 The following libraries were tried (in order):
3444 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3445 Please try installing whichever of these libraries is most appropriate
3446 for your system, together with its header files.
3447 For example, a libncurses-dev(el) or similar package.])
3450 ## Use termcap instead of terminfo?
3451 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3453 ## FIXME? In the cases below where we unconditionally set
3454 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3455 ## if that was found above to have tputs.
3456 ## Should we use the gnu* logic everywhere?
3458 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3459 ## The ncurses library has been moved out of the System framework in
3460 ## Mac OS X 10.2. So if configure detects it, set the command-line
3461 ## option to use it.
3462 darwin) LIBS_TERMCAP="-lncurses" ;;
3464 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3467 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3468 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3469 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3470 [[#if __FreeBSD_version < 400000
3473 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3475 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3477 if test $emacs_cv_freebsd_terminfo = yes; then
3478 LIBS_TERMCAP="-lncurses"
3481 LIBS_TERMCAP="-ltermcap"
3491 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3493 LIBS_TERMCAP="-ltermcap"
3497 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3499 ## hpux: Make sure we get select from libc rather than from libcurses
3500 ## because libcurses on HPUX 10.10 has a broken version of select.
3501 ## We used to use -lc -lcurses, but this may be cleaner.
3502 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3503 # set that way, now it uses the default). Isn't this a contradiction?
3504 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3508 TERMCAP_OBJ=tparam.o
3509 if test $TERMINFO = yes; then
3510 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3511 TERMCAP_OBJ=terminfo.o
3513 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3514 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3516 AC_SUBST(LIBS_TERMCAP)
3517 AC_SUBST(TERMCAP_OBJ)
3520 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3521 # On Darwin, res_init appears not to be useful: see bug#562 and
3522 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3525 if test $opsys != darwin; then
3527 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3528 #include <arpa/nameser.h>
3529 #include <resolv.h>]],
3530 [[return res_init();]])],
3531 have_res_init=yes, have_res_init=no)
3532 if test "$have_res_init" = no; then
3534 LIBS="$LIBS -lresolv"
3535 AC_MSG_CHECKING(for res_init with -lresolv)
3536 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3537 #include <arpa/nameser.h>
3538 #include <resolv.h>]],
3539 [[return res_init();]])],
3540 have_res_init=yes, have_res_init=no)
3541 AC_MSG_RESULT($have_res_init)
3542 if test "$have_res_init" = yes ; then
3548 if test "$have_res_init" = yes; then
3549 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3553 # Do we need the Hesiod library to provide the support routines?
3554 dnl FIXME? Should we be skipping this on Darwin too?
3556 if test "$with_hesiod" != no ; then
3557 # Don't set $LIBS here -- see comments above. FIXME which comments?
3558 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3559 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3560 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3561 if test "$resolv" = yes ; then
3566 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3567 hesiod=yes, :, $RESOLVLIB)])
3569 if test x"$hesiod" = xyes; then
3575 # Do we need libresolv (due to res_init or Hesiod)?
3576 if test "$resolv" = yes && test $opsys != darwin; then
3583 # These tell us which Kerberos-related libraries to use.
3590 if test "${with_kerberos}" != no; then
3591 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3592 if test $have_com_err = yes; then
3593 COM_ERRLIB=-lcom_err
3594 LIBS="$COM_ERRLIB $LIBS"
3596 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3597 if test $have_crypto = yes; then
3599 LIBS="$CRYPTOLIB $LIBS"
3601 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3602 if test $have_k5crypto = yes; then
3603 CRYPTOLIB=-lk5crypto
3604 LIBS="$CRYPTOLIB $LIBS"
3606 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3607 if test $have_krb5=yes; then
3609 LIBS="$KRB5LIB $LIBS"
3611 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3612 if test "${with_kerberos5}" = no; then
3613 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3614 if test $have_des425 = yes; then
3616 LIBS="$DESLIB $LIBS"
3618 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3619 if test $have_des = yes; then
3621 LIBS="$DESLIB $LIBS"
3624 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3625 if test $have_krb4 = yes; then
3627 LIBS="$KRB4LIB $LIBS"
3629 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3630 if test $have_krb = yes; then
3632 LIBS="$KRB4LIB $LIBS"
3637 if test "${with_kerberos5}" != no; then
3638 AC_CHECK_HEADERS(krb5.h,
3639 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3640 [#include <krb5.h>])])
3642 AC_CHECK_HEADERS(krb.h,,
3643 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3644 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3646 AC_CHECK_HEADERS(com_err.h)
3649 AC_SUBST(COM_ERRLIB)
3655 AC_CHECK_FUNCS_ONCE(tzset)
3656 AC_MSG_CHECKING(whether localtime caches TZ)
3657 AC_CACHE_VAL(emacs_cv_localtime_cache,
3658 [if test x$ac_cv_func_tzset = xyes; then
3659 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3660 char TZ_GMT0[] = "TZ=GMT0";
3661 char TZ_PST8[] = "TZ=PST8";
3664 time_t now = time ((time_t *) 0);
3665 int hour_GMT0, hour_unset;
3666 if (putenv (TZ_GMT0) != 0)
3668 hour_GMT0 = localtime (&now)->tm_hour;
3670 hour_unset = localtime (&now)->tm_hour;
3671 if (putenv (TZ_PST8) != 0)
3673 if (localtime (&now)->tm_hour == hour_GMT0)
3676 if (localtime (&now)->tm_hour != hour_unset)
3679 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3680 [# If we have tzset, assume the worst when cross-compiling.
3681 emacs_cv_localtime_cache=yes])
3683 # If we lack tzset, report that localtime does not cache TZ,
3684 # since we can't invalidate the cache if we don't have tzset.
3685 emacs_cv_localtime_cache=no
3687 AC_MSG_RESULT($emacs_cv_localtime_cache)
3688 if test $emacs_cv_localtime_cache = yes; then
3689 AC_DEFINE(LOCALTIME_CACHE, 1,
3690 [Define to 1 if localtime caches TZ.])
3694 AC_CHECK_FUNC(socket, , ok_so_far=no)
3695 if test $ok_so_far = yes; then
3696 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3698 if test $ok_so_far = yes; then
3699 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3701 if test $ok_so_far = yes; then
3702 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3703 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3704 [Define to 1 if you have inet sockets.])
3707 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3708 dnl This can be removed once we assume Autoconf 2.70.
3710 *-solaris2.4 | *-solaris2.4.*)
3711 dnl Disable the Autoconf-generated vfork test.
3712 : ${ac_cv_func_vfork_works=no};;
3717 AC_CHECK_FUNCS(snprintf)
3719 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3722 AC_MSG_CHECKING([whether GLib is linked in])
3723 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3726 [[g_print ("Hello world");]])],
3729 AC_MSG_RESULT([$links_glib])
3730 if test "${links_glib}" = "yes"; then
3731 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3732 if test "$HAVE_NS" = no;then
3738 dnl Adapted from Haible's version.
3739 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3740 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3741 [[char* cs = nl_langinfo(CODESET);]])],
3742 emacs_cv_langinfo_codeset=yes,
3743 emacs_cv_langinfo_codeset=no)
3745 if test $emacs_cv_langinfo_codeset = yes; then
3746 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3747 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3752 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3753 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3754 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3755 if test "$emacs_cv_c_restrict_arr" = yes; then
3756 AC_DEFINE(__restrict_arr, __restrict,
3757 [Define to compiler's equivalent of C99 restrict keyword in array
3758 declarations. Define as empty for no equivalent.])
3761 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3762 dnl how the tty code is related to POSIX and/or other versions of termios.
3763 dnl The following looks like a useful start.
3765 dnl AC_SYS_POSIX_TERMIOS
3766 dnl if test $ac_cv_sys_posix_termios = yes; then
3767 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3768 dnl and macros for terminal control.])
3769 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3772 dnl Turned on June 1996 supposing nobody will mind it.
3773 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3774 if test "${opsys}" != "mingw32"; then
3775 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3776 in the full name stands for the login id.])
3779 dnl Every platform that uses configure supports this.
3780 dnl There is a create-lockfiles option you can
3781 dnl customize if you do not want the lock files to be written.
3782 dnl So it is not clear that this #define still needs to exist.
3783 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3784 so that Emacs can tell instantly when you try to modify a file that
3785 someone else has modified in his/her Emacs.])
3787 dnl Everybody supports this, except MS.
3788 dnl Seems like the kind of thing we should be testing for, though.
3789 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3790 if test "${opsys}" != "mingw32"; then
3791 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3794 dnl Everybody supports this, except MS-DOS.
3795 dnl Seems like the kind of thing we should be testing for, though.
3796 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3797 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3798 4.2-compatible sockets.])
3800 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3802 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3803 a null file, or a data sink.])
3804 if test "${opsys}" = "mingw32"; then
3805 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3807 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3810 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3811 if test "${opsys}" = "mingw32"; then
3812 AC_DEFINE(SEPCHAR, [';'])
3814 AC_DEFINE(SEPCHAR, [':'])
3817 dnl Everybody supports this, except MS-DOS.
3818 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3820 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3823 AC_DEFINE(DIRECTORY_SEP, ['/'],
3824 [Character that separates directories in a file name.])
3826 if test "${opsys}" = "mingw32"; then
3827 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3828 [Returns true if character is a device separator.])
3830 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3831 [Returns true if character is a directory separator.])
3833 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3834 [Returns true if character is any form of separator.])
3836 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3837 [Returns true if character is a device separator.])
3839 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3840 [Returns true if character is a directory separator.])
3842 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3843 [Returns true if character is any form of separator.])
3846 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3850 dnl Unfortunately without libXmu we cannot support EditRes.
3851 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3852 AC_DEFINE(NO_EDITRES, 1)
3857 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3858 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3859 AC_DEFINE(NO_EDITRES, 1)
3865 irix6-5 | sol2* | unixware )
3866 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3867 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3868 dnl need the constant to dimension an array. So wire in the appropriate
3870 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3874 emacs_broken_SIGIO=no
3877 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3878 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3879 hpux* | irix6-5 | openbsd | sol2* | unixware )
3880 emacs_broken_SIGIO=yes
3884 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3885 dnl the way this system works, libc functions that return malloced
3886 dnl memory use the libc malloc implementation. Calling xfree or
3887 dnl xrealloc on the results of such functions results in a crash.
3889 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3890 dnl but that does not currently work on this system.
3892 dnl It is possible to completely override the malloc implementation on
3893 dnl AIX, but that involves putting the malloc functions in a shared
3894 dnl library and setting the MALLOCTYPE environment variable to point to
3895 dnl that shared library.
3897 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3898 dnl to avoid a crash just use the Emacs implementation for that function.
3900 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3901 dnl of this file, so that we do not check for get_current_dir_name
3902 dnl on AIX. But that might be fragile if something else ends
3903 dnl up testing for get_current_dir_name as a dependency.
3904 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3905 get_current_dir_name should not be used.])
3909 dnl Circumvent a bug in FreeBSD. In the following sequence of
3910 dnl writes/reads on a PTY, read(2) returns bogus data:
3912 dnl write(2) 1022 bytes
3913 dnl write(2) 954 bytes, get EAGAIN
3914 dnl read(2) 1024 bytes in process_read_output
3915 dnl read(2) 11 bytes in process_read_output
3917 dnl That is, read(2) returns more bytes than have ever been written
3918 dnl successfully. The 1033 bytes read are the 1022 bytes written
3919 dnl successfully after processing (for example with CRs added if the
3920 dnl terminal is set up that way which it is here). The same bytes will
3921 dnl be seen again in a later read(2), without the CRs.
3922 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3923 work around an issue when reading from a PTY.])
3929 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3930 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3935 darwin | dragonfly | freebsd | netbsd | openbsd )
3936 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3937 close a pty to make it a controlling terminal (it is already a
3938 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3942 dnl FIXME Surely we can test for this rather than hard-code it.
3944 netbsd | openbsd) sound_device="/dev/audio" ;;
3945 *) sound_device="/dev/dsp" ;;
3949 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3950 [Name of the default sound device.])
3953 dnl Emacs can read input using SIGIO and buffering characters itself,
3954 dnl or using CBREAK mode and making C-g cause SIGINT.
3955 dnl The choice is controlled by the variable interrupt_input.
3957 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3959 dnl Emacs uses the presence of the USABLE_SIGIO macro
3960 dnl to indicate whether or not signal-driven I/O is possible. It uses
3961 dnl INTERRUPT_INPUT to decide whether to use it by default.
3963 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3964 dnl CBREAK mode has two disadvantages
3965 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3966 dnl I hear that in system V this problem does not exist.
3967 dnl 2) Control-G causes output to be discarded.
3968 dnl I do not know whether this can be fixed in system V.
3970 dnl Another method of doing input is planned but not implemented.
3971 dnl It would have Emacs fork off a separate process
3972 dnl to read the input and send it to the true Emacs process
3975 darwin | gnu-linux | gnu-kfreebsd )
3976 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3981 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3982 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3983 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3984 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3985 dnl taking float or double parameters.
3987 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3988 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3989 file defines `NeedWidePrototypes' as `NO'.])
3994 dnl Used in process.c, this must be a loop, even if it only runs once.
3995 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3996 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3997 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3998 dnl trying suffixes 0-16.
3999 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4000 first PTY, if PTYs are supported.])
4001 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4002 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4003 end of a PTY, if non-standard.])
4004 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4005 end of a PTY, if non-standard.])
4009 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4010 dnl You allocate a pty by opening /dev/ptc to get the master side.
4011 dnl To get the name of the slave side, you just ttyname() the master side.
4012 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4013 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4017 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4018 dnl multi-line AC_DEFINEs are hard. :(
4019 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)])
4020 AC_DEFINE(PTY_NAME_SPRINTF, [])
4021 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4024 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4026 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4027 dnl Not used, because PTY_ITERATION is defined.
4028 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4029 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4030 dnl But we don't have to block SIGCHLD because it is blocked in the
4031 dnl implementation of grantpt.
4032 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4033 AC_DEFINE(PTY_NAME_SPRINTF, [])
4034 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4038 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4041 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4043 if test "x$ac_cv_func_grantpt" = xyes; then
4044 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4045 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4046 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4047 dnl to prevent sigchld_handler from intercepting the child's death.
4048 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); }])
4049 dnl if HAVE_POSIX_OPENPT
4050 if test "x$ac_cv_func_posix_openpt" = xyes; then
4051 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4052 AC_DEFINE(PTY_NAME_SPRINTF, [])
4054 elif test "x$ac_cv_func_getpt" = xyes; then
4055 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4056 AC_DEFINE(PTY_NAME_SPRINTF, [])
4058 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4061 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4066 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4067 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4068 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4072 dnl It looks like this cannot be right, because it is not a loop.
4073 dnl However, process.c actually does this:
4079 dnl which presumably makes it OK, since irix == sgi (?).
4080 dnl FIXME it seems like this special treatment is unnecessary?
4081 dnl Why can't irix use a single-trip loop like eg cygwin?
4082 AC_DEFINE(PTY_ITERATION, [])
4083 dnl Not used, because PTY_ITERATION is defined.
4084 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4085 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); }])
4086 dnl No need to get the pty name at all.
4087 AC_DEFINE(PTY_NAME_SPRINTF, [])
4088 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4089 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4093 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4094 dnl from intercepting that death. If any child but grantpt's should die
4095 dnl within, it should be caught after sigrelse(2).
4096 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); }])
4100 dnl Comments are as per sol2*.
4101 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); }])
4108 dnl This change means that we don't loop through allocate_pty too
4109 dnl many times in the (rare) event of a failure.
4110 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4111 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4112 dnl Push various streams modules onto a PTY channel. Used in process.c.
4113 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.])
4118 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4119 "typing" a signal character on the pty.])
4122 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4123 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4124 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4125 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4128 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4129 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4130 gnu-linux | gnu-kfreebsd )
4132 AC_MSG_CHECKING([for signals via characters])
4133 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4134 #include <linux/version.h>
4135 #if LINUX_VERSION_CODE < 0x20400
4136 # error "Linux version too old"
4138 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4140 AC_MSG_RESULT([$emacs_signals_via_chars])
4141 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4146 dnl Used in lisp.h, emacs.c, vm-limit.c
4147 dnl NEWS.18 describes this as "a number which contains
4148 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4149 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4150 stored in a Lisp_Object.])
4151 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4155 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4156 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4159 dnl The data segment on this machine always starts at address 0x40000000.
4160 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4163 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4168 AH_TEMPLATE(TAB3, [Undocumented.])
4171 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4173 gnu | dragonfly | freebsd | netbsd | openbsd )
4174 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4175 AC_DEFINE(TAB3, OXTABS)
4178 gnu-linux | gnu-kfreebsd )
4179 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4183 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4184 [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)],
4185 [Mark a secondary stack, like the register stack on the ia64.]), [])
4189 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4190 run_time_remap; for HPUX.])
4195 dnl This won't be used automatically yet. We also need to know, at least,
4196 dnl that the stack is continuous.
4197 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4198 registers relevant for conservative garbage collection in the jmp_buf.])
4202 dnl Not all the architectures are tested, but there are Debian packages
4203 dnl for SCM and/or Guile on them, so the technique must work. See also
4204 dnl comments in alloc.c concerning setjmp and gcc.
4205 dnl Fixme: it's probably safe to just use the GCC conditional below.
4206 gnu-linux | gnu-kfreebsd )
4207 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4208 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4209 || defined __alpha__ || defined __mips__ || defined __s390__ \
4210 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4211 || defined __ia64__ || defined __sh__
4214 # error "setjmp not known to work on this arch"
4216 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4221 if test x$GCC = xyes; then
4222 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4223 AC_DEFINE(GC_SETJMP_WORKS, 1)
4226 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4227 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4228 AC_DEFINE(GC_SETJMP_WORKS, 1)
4233 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4234 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4237 [[#include <setjmp.h>
4239 # define _longjmp longjmp
4244 _longjmp (j, 1);]])],
4245 [emacs_cv_func__setjmp=yes],
4246 [emacs_cv_func__setjmp=no])])
4247 if test $emacs_cv_func__setjmp = yes; then
4248 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4250 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4253 [[#include <setjmp.h>
4256 if (! sigsetjmp (j, 1))
4257 siglongjmp (j, 1);]])],
4258 [emacs_cv_func_sigsetjmp=yes],
4259 [emacs_cv_func_sigsetjmp=no])])
4260 if test $emacs_cv_func_sigsetjmp = yes; then
4261 AC_DEFINE([HAVE_SIGSETJMP], 1,
4262 [Define to 1 if sigsetjmp and siglongjmp work.
4263 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4269 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4270 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4271 dnl and this is all we need.
4272 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4279 dnl Used in xfaces.c.
4280 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4281 some systems, where it requires time.h.])
4286 dnl Define symbols to identify the version of Unix this is.
4287 dnl Define all the symbols that apply correctly.
4288 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4289 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4290 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4291 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4296 dnl This symbol should be defined on AIX Version 3 ???????
4297 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4299 # error "_AIX not defined"
4301 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4305 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4309 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4310 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4311 dnl distinguish OS X from pure Darwin.
4312 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4315 gnu-linux | gnu-kfreebsd )
4317 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4322 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4327 AC_DEFINE(USG5_4, [])
4328 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4332 AC_DEFINE(DOS_NT, [])
4333 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4334 if test "x$ac_enable_checking" != "x" ; then
4335 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4341 AC_DEFINE(USG5_4, [])
4342 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4347 AC_DEFINE(USG5_4, [])
4351 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4354 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4355 emacs_cv_usable_FIONREAD=no
4359 emacs_cv_usable_FIONREAD=yes
4364 [AC_LANG_PROGRAM([[#include <sys/types.h>
4365 #include <sys/ioctl.h>
4367 # include <sys/filio.h>
4370 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4371 [emacs_cv_usable_FIONREAD=yes],
4372 [emacs_cv_usable_FIONREAD=no])
4375 if test $emacs_cv_usable_FIONREAD = yes; then
4376 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4378 if test $emacs_broken_SIGIO = no; then
4379 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4381 [AC_LANG_PROGRAM([[#include <fcntl.h>
4384 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4385 [emacs_cv_usable_SIGIO=yes],
4386 [emacs_cv_usable_SIGIO=no])],
4387 [emacs_cv_usable_SIGIO=yes],
4388 [emacs_cv_usable_SIGIO=no])
4389 if test $emacs_cv_usable_SIGIO = yes; then
4390 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4397 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4398 dnl and on Cygwin prior to version 1.7.24 that becomes the
4399 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4400 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4401 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4402 dnl needed starting with cygwin-1.7.24, and it is no longer
4403 dnl effective starting with glib-2.36. */
4405 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4406 G_SLICE environment variable to "always-malloc" at startup.])
4410 dnl It works to open the pty's tty in the parent (Emacs), then
4411 dnl close and reopen it in the child.
4412 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4413 works to open a pty's tty in the parent process, then close and
4414 reopen it in the child.])
4418 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4419 use VSUSP instead of VSWTCH.])
4423 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4428 # Set up the CFLAGS for real compilation, so we can substitute it.
4429 CFLAGS="$REAL_CFLAGS"
4430 CPPFLAGS="$REAL_CPPFLAGS"
4432 ## Hack to detect a buggy GCC version.
4433 if test "x$GCC" = xyes \
4434 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4435 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4436 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4437 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4440 version=$PACKAGE_VERSION
4442 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4443 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4444 [Short copyright string for this version of Emacs.])
4447 ### Specify what sort of things we'll be editing into Makefile and config.h.
4448 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4450 AC_SUBST(configuration)
4455 AC_SUBST(exec_prefix)
4458 AC_SUBST(sharedstatedir)
4459 AC_SUBST(libexecdir)
4464 AC_SUBST(standardlisppath)
4465 AC_SUBST(locallisppath)
4467 AC_SUBST(x_default_search_path)
4469 AC_SUBST(archlibdir)
4474 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4475 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4476 ## end of LIBX_BASE, but nothing ever set it.
4477 AC_SUBST(LD_SWITCH_X_SITE)
4478 AC_SUBST(C_SWITCH_X_SITE)
4479 AC_SUBST(GNUSTEP_CFLAGS)
4481 ## Used in lwlib/Makefile.in.
4482 AC_SUBST(X_TOOLKIT_TYPE)
4484 AC_SUBST(ns_appbindir)
4485 AC_SUBST(ns_appresdir)
4487 AC_SUBST(GNU_OBJC_CFLAGS)
4488 AC_SUBST(OTHER_FILES)
4490 if test -n "${term_header}"; then
4491 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4492 [Define to the header for the built-in window system.])
4495 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4496 [Define to the canonical Emacs configuration name.])
4497 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4498 [Define to the options passed to configure.])
4499 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4500 define this to include extra configuration information.])
4504 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4511 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4512 AC_DEFINE(HAVE_X_WINDOWS, 1,
4513 [Define to 1 if you want to use the X window system.])
4515 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4517 if test "$HAVE_XFT" = "yes"; then
4518 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4519 elif test "$HAVE_FREETYPE" = "yes"; then
4520 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4530 if test "${USE_X_TOOLKIT}" != "none" ; then
4532 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4533 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4534 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4535 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4536 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4540 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4541 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4545 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4546 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4547 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4551 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4552 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4555 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4558 AC_SUBST(WIDGET_OBJ)
4561 case "$USE_X_TOOLKIT" in
4562 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4563 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4564 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4566 AC_SUBST(TOOLKIT_LIBW)
4568 if test "${opsys}" != "mingw32"; then
4569 if test "$USE_X_TOOLKIT" = "none"; then
4570 LIBXT_OTHER="\$(LIBXSM)"
4571 OLDXMENU_TARGET="really-oldXMenu"
4573 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4574 OLDXMENU_TARGET="really-lwlib"
4577 AC_SUBST(LIBXT_OTHER)
4579 ## The X Menu stuff is present in the X10 distribution, but missing
4580 ## from X11. If we have X10, just use the installed library;
4581 ## otherwise, use our own copy.
4582 if test "${HAVE_X11}" = "yes" ; then
4583 AC_DEFINE(HAVE_X11, 1,
4584 [Define to 1 if you want to use version 11 of X windows.
4585 Otherwise, Emacs expects to use version 10.])
4587 if test "$USE_X_TOOLKIT" = "none"; then
4588 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4590 OLDXMENU="\${lwlibdir}/liblw.a"
4592 LIBXMENU="\$(OLDXMENU)"
4593 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4594 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4596 ## For a syntactically valid Makefile; not actually used for anything.
4597 ## See comments in src/Makefile.in.
4599 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4600 if test "${HAVE_X_WINDOWS}" = "yes"; then
4609 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4616 AC_SUBST(OLDXMENU_TARGET)
4619 AC_SUBST(LIBX_OTHER)
4620 AC_SUBST(OLDXMENU_DEPS)
4622 if test "${HAVE_MENUS}" = "yes" ; then
4623 AC_DEFINE(HAVE_MENUS, 1,
4624 [Define to 1 if you have mouse menus.
4625 (This is automatic if you use X, but the option to specify it remains.)
4626 It is also defined with other window systems that support xmenu.c.])
4629 if test "${GNU_MALLOC}" = "yes" ; then
4630 AC_DEFINE(GNU_MALLOC, 1,
4631 [Define to 1 if you want to use the GNU memory allocator.])
4635 if test "${REL_ALLOC}" = "yes" ; then
4636 AC_DEFINE(REL_ALLOC, 1,
4637 [Define REL_ALLOC if you want to use the relocating allocator for
4640 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4642 AC_SUBST(RALLOC_OBJ)
4644 if test "$opsys" = "cygwin"; then
4645 CYGWIN_OBJ="sheap.o cygw32.o"
4646 ## Cygwin differs because of its unexec().
4648 POST_ALLOC_OBJ=lastfile.o
4649 elif test "$opsys" = "mingw32"; then
4652 POST_ALLOC_OBJ=lastfile.o
4655 PRE_ALLOC_OBJ=lastfile.o
4658 AC_SUBST(CYGWIN_OBJ)
4659 AC_SUBST(PRE_ALLOC_OBJ)
4660 AC_SUBST(POST_ALLOC_OBJ)
4662 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4663 # it temporarily reverts them to their pre-pkg-config values,
4664 # because gnulib needs to work with both src (which uses the
4665 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4666 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4667 # and it therefore needs to run in an environment where LIBS does not
4668 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4669 # for some package unrelated to lib-src.
4672 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4673 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4674 gl_ASSERT_NO_GNULIB_POSIXCHECK
4675 gl_ASSERT_NO_GNULIB_TESTS
4680 if test "${opsys}" = "mingw32"; then
4681 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4682 # Remove unneeded switches from the value of CC that goes to Makefiles
4683 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4687 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4690 ## The -headerpad option tells ld (see man page) to leave room at the
4691 ## end of the header for adding load commands. Needed for dumping.
4692 ## 0x690 is the total size of 30 segment load commands (at 56
4693 ## each); under Cocoa 31 commands are required.
4694 if test "$HAVE_NS" = "yes"; then
4695 libs_nsgui="-framework AppKit"
4696 if test "$NS_IMPL_COCOA" = "yes"; then
4697 libs_nsgui="$libs_nsgui -framework IOKit"
4704 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4706 ## This is here because src/Makefile.in did some extra fiddling around
4707 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4708 ## LD_SWITCH_SYSTEM_TEMACS instead,
4709 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4710 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4713 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4714 ## find X at run-time.
4715 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4716 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4717 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4718 ## had different values in configure (in ac_link) and src/Makefile.in.
4719 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4720 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4723 ## MinGW64 does not prepend an underscore to symbols, so we must
4724 ## pass a different -entry switch to linker. FIXME: It is better
4725 ## to make the entry points the same by changing unexw32.c.
4726 case "$canonical" in
4727 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4728 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4732 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4734 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4737 if test x$ac_enable_profiling != x ; then
4739 *freebsd | gnu-linux) ;;
4740 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4744 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4746 ## MinGW-specific post-link processing of temacs.
4747 TEMACS_POST_LINK=":"
4750 if test "${opsys}" = "mingw32"; then
4751 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4752 ADDSECTION="../nt/addsection\$(EXEEXT)"
4753 ## Preload heap size of temacs.exe in MB.
4754 case "$canonical" in
4755 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4756 *) EMACS_HEAPSIZE=27 ;;
4760 AC_SUBST(ADDSECTION)
4761 AC_SUBST(TEMACS_POST_LINK)
4762 AC_SUBST(EMACS_HEAPSIZE)
4764 ## Common for all window systems
4765 if test "$window_system" != "none"; then
4766 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4767 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4770 AC_SUBST(WINDOW_SYSTEM_OBJ)
4772 AH_TOP([/* GNU Emacs site configuration template file.
4774 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4775 Free Software Foundation, Inc.
4777 This file is part of GNU Emacs.
4779 GNU Emacs is free software: you can redistribute it and/or modify
4780 it under the terms of the GNU General Public License as published by
4781 the Free Software Foundation, either version 3 of the License, or
4782 (at your option) any later version.
4784 GNU Emacs is distributed in the hope that it will be useful,
4785 but WITHOUT ANY WARRANTY; without even the implied warranty of
4786 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4787 GNU General Public License for more details.
4789 You should have received a copy of the GNU General Public License
4790 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4793 /* No code in Emacs #includes config.h twice, but some bits of code
4794 intended to work with other packages as well (like gmalloc.c)
4795 think they can include it as many times as they like. */
4796 #ifndef EMACS_CONFIG_H
4797 #define EMACS_CONFIG_H
4800 AH_BOTTOM([#include <conf_post.h>
4802 #endif /* EMACS_CONFIG_H */
4811 #### Report on what we decided to do.
4812 #### Report GTK as a toolkit, even if it doesn't use Xt.
4813 #### It makes printing result more understandable as using GTK sets
4814 #### toolkit_scroll_bars to yes by default.
4815 if test "${HAVE_GTK}" = "yes"; then
4816 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4819 if test $USE_ACL -ne 0; then
4820 acl_summary="yes $LIB_ACL"
4826 Configured for \`${canonical}'.
4828 Where should the build process find the source code? ${srcdir}
4829 What compiler should emacs be built with? ${CC} ${CFLAGS}
4830 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4831 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4832 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4833 What window system should Emacs use? ${window_system}
4834 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4836 if test -n "${x_includes}"; then
4837 echo " Where do we find X Windows header files? ${x_includes}"
4839 echo " Where do we find X Windows header files? Standard dirs"
4841 if test -n "${x_libraries}"; then
4842 echo " Where do we find X Windows libraries? ${x_libraries}"
4844 echo " Where do we find X Windows libraries? Standard dirs"
4847 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4848 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4849 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4850 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4851 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4852 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4853 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4854 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4856 echo " Does Emacs support sound? ${HAVE_SOUND}"
4858 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4859 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4860 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4861 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4862 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4863 echo " Does Emacs use access control lists? ${acl_summary}"
4864 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4865 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4866 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4868 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4869 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4870 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4871 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4872 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4874 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4877 if test -n "${EMACSDATA}"; then
4878 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4880 if test -n "${EMACSDOC}"; then
4881 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4886 if test "$HAVE_NS" = "yes"; then
4888 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4889 The installed application will go to nextstep/Emacs.app and can be
4890 run or moved from there."
4891 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4892 echo "The application will be fully self-contained."
4894 echo "The lisp resources for the application will be installed under ${prefix}.
4895 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4896 to run if these resources are not installed."
4901 if test "${opsys}" = "cygwin"; then
4903 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4909 # Remove any trailing slashes in these variables.
4910 [test "${prefix}" != NONE &&
4911 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4912 test "${exec_prefix}" != NONE &&
4913 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4915 if test "$HAVE_NS" = "yes"; then
4916 if test "$NS_IMPL_GNUSTEP" = yes; then
4917 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4918 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4919 ns_check_file=Resources/Info-gnustep.plist
4921 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4922 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4923 ns_check_file=Contents/Info.plist
4925 AC_SUBST(ns_check_file)
4928 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4929 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4930 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4931 dnl (else you get "no `Makefile.am' found for any configure output").
4932 dnl This will work, but you get a config.status that is not quite right
4933 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4934 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4935 dnl it seems better to just live with the duplication.
4936 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4938 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4939 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4940 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4941 leim/Makefile nextstep/Makefile nt/Makefile])
4943 dnl test/ is not present in release tarfiles.
4944 opt_makefile=test/automated/Makefile
4946 if test -f "$srcdir/$opt_makefile.in"; then
4947 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4948 dnl Again, it's best not to use a variable. Though you can add
4949 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4950 AC_CONFIG_FILES([test/automated/Makefile])
4954 dnl admin/ may or may not be present.
4955 opt_makefile=admin/unidata/Makefile
4957 if test -f "$srcdir/$opt_makefile.in"; then
4958 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4959 AC_CONFIG_FILES([admin/unidata/Makefile])
4963 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4965 AC_SUBST(SUBDIR_MAKEFILES_IN)
4967 dnl You might wonder (I did) why epaths.h is generated by running make,
4968 dnl rather than just letting configure generate it from epaths.in.
4969 dnl One reason is that the various paths are not fully expanded (see above);
4970 dnl eg gamedir=${prefix}/var/games/emacs.
4971 dnl Secondly, the GNU Coding standards require that one should be able
4972 dnl to run `make prefix=/some/where/else' and override the values set
4973 dnl by configure. This also explains the `move-if-change' test and
4974 dnl the use of force in the `epaths-force' rule in Makefile.in.
4975 AC_CONFIG_COMMANDS([src/epaths.h], [
4976 if test "${opsys}" = "mingw32"; then
4977 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4979 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4981 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4983 AC_CONFIG_COMMANDS([src/.gdbinit], [
4984 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4985 echo "source $srcdir/src/.gdbinit" > src/.gdbinit