1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2013 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.3.50)
27 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
28 dnl and then quoted again for a C string. Separate options with spaces.
29 dnl Add some environment variables, if they were passed via the environment
30 dnl rather than on the command-line.
33 dnl This is the documented way to record the args passed to configure,
34 dnl rather than $ac_configure_args.
35 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
37 -n | --no-create | --no-recursion)
39 CFLAGS | CPPFLAGS | LDFLAGS)
40 eval 'test "${'$opt'+set}" = set' || continue
42 *" $opt="*) continue ;;
44 eval opt=$opt=\$$opt ;;
47 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
49 *[["$emacs_shell_specials"]]*)
52 emacs_quote_apostrophes="s/'/'\\\\''/g"
53 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
58 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
59 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
62 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
66 AC_CONFIG_HEADER(src/config.h:src/config.in)
67 AC_CONFIG_SRCDIR(src/lisp.h)
68 AC_CONFIG_AUX_DIR(build-aux)
69 dnl Fairly arbitrary, older versions might work too.
70 AM_INIT_AUTOMAKE(1.11)
72 dnl Support for --program-prefix, --program-suffix and
73 dnl --program-transform-name options
76 dnl It is important that variables on the RHS not be expanded here,
77 dnl hence the single quotes. This is per the GNU coding standards, see
78 dnl (autoconf) Installation Directory Variables
79 dnl See also epaths.h below.
80 lispdir='${datadir}/emacs/${version}/lisp'
81 leimdir='${datadir}/emacs/${version}/leim'
82 standardlisppath='${lispdir}:${leimdir}'
83 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
84 '${datadir}/emacs/site-lisp'
85 lisppath='${locallisppath}:${standardlisppath}'
86 etcdir='${datadir}/emacs/${version}/etc'
87 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
88 etcdocdir='${datadir}/emacs/${version}/etc'
89 gamedir='${localstatedir}/games/emacs'
91 dnl Special option to disable the most of other options.
93 [AS_HELP_STRING([--without-all],
94 [omit almost all features and build
95 small executable with minimal dependencies])],
96 with_features=$withval,
99 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
100 dnl Create a new --with option that defaults to being disabled.
101 dnl NAME is the base name of the option. The shell variable with_NAME
102 dnl will be set to either the user's value (if the option is
103 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
104 dnl option is not specified). Note that the shell variable name is
105 dnl constructed as autoconf does, by replacing non-alphanumeric
106 dnl characters with "_".
107 dnl HELP-STRING is the help text for the option.
108 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
109 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
110 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
113 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
114 dnl Create a new --with option that defaults to $with_features.
115 dnl NAME is the base name of the option. The shell variable with_NAME
116 dnl will be set either to 'no' (for a plain --without-NAME) or to
117 dnl 'yes' (if the option is not specified). Note that the shell
118 dnl variable name is constructed as autoconf does, by replacing
119 dnl non-alphanumeric characters with "_".
120 dnl HELP-STRING is the help text for the option.
121 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
122 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
123 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
126 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
127 if test "$with_pop" = yes; then
128 AC_DEFINE(MAIL_USE_POP)
130 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
132 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
133 if test "$with_kerberos" != no; then
136 AH_TEMPLATE(KERBEROS,
137 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
139 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
140 if test "${with_kerberos5}" != no; then
141 if test "${with_kerberos}" = no; then
145 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
148 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
149 dnl FIXME hesiod support may not be present, so it seems like an error
150 dnl to define, or at least use, this unconditionally.
151 if test "$with_hesiod" != no; then
152 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
155 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
156 if test "$with_mmdf" != no; then
157 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
160 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
161 if test "$with_mail_unlink" != no; then
162 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
165 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
166 [string giving default POP mail host])],
167 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
169 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
170 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
171 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
172 [ case "${withval}" in
173 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
174 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
175 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
180 [with_sound=$with_features])
182 dnl FIXME currently it is not the last.
183 dnl This should be the last --with option, because --with-x is
184 dnl added later on when we find the file name of X, and it's best to
185 dnl keep them together visually.
186 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
187 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
188 [ case "${withval}" in
189 y | ye | yes ) val=gtk ;;
191 l | lu | luc | luci | lucid ) val=lucid ;;
192 a | at | ath | athe | athen | athena ) val=athena ;;
193 m | mo | mot | moti | motif ) val=motif ;;
194 g | gt | gtk ) val=gtk ;;
198 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
199 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
200 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
201 `athena' and `lucid' are synonyms.])
207 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
208 if test "$with_wide_int" = yes; then
209 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
212 dnl _ON results in a '--without' option in the --help output, so
213 dnl the help text should refer to "don't compile", etc.
214 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
215 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
216 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
217 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
218 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
219 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
220 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
221 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
223 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
224 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
225 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
227 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
228 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
229 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
230 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
231 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
233 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
234 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
235 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
236 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
237 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
238 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
239 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
241 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
242 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
243 [ case "${withval}" in
244 y | ye | yes ) val=yes ;;
246 g | gf | gfi | gfil | gfile ) val=gfile ;;
247 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
248 w | w3 | w32 ) val=w32 ;;
249 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
250 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
251 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
252 otherwise for the first of `gfile' or `inotify' that is usable.])
255 with_file_notification=$val
257 [with_file_notification=$with_features])
259 ## For the times when you want to build Emacs but don't have
260 ## a suitable makeinfo, and can live without the manuals.
261 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
262 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
264 ## Makefile.in needs the cache file name.
267 ## This is an option because I do not know if all info/man support
268 ## compressed files, nor how to test if they do so.
269 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
270 if test $with_compress_info = yes; then
277 AC_ARG_WITH([pkg-config-prog],dnl
278 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
279 [file name of pkg-config for finding GTK and librsvg])])
280 if test "X${with_pkg_config_prog}" != X; then
281 if test "${with_pkg_config_prog}" != yes; then
282 PKG_CONFIG="${with_pkg_config_prog}"
286 AC_ARG_WITH(gameuser,dnl
287 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
288 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
289 && gameuser="${with_gameuser}"
290 test "X$gameuser" = X && gameuser=games
292 AC_ARG_WITH([gnustep-conf],dnl
293 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
294 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
295 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
296 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
297 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
298 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
300 AC_ARG_ENABLE(ns-self-contained,
301 [AS_HELP_STRING([--disable-ns-self-contained],
302 [disable self contained build under NeXTstep])],
303 EN_NS_SELF_CONTAINED=$enableval,
304 EN_NS_SELF_CONTAINED=yes)
306 AC_ARG_ENABLE(locallisppath,
307 [AS_HELP_STRING([--enable-locallisppath=PATH],
308 [directories Emacs should search for lisp files specific
310 if test "${enableval}" = "no"; then
312 elif test "${enableval}" != "yes"; then
313 locallisppath=${enableval}
316 AC_ARG_ENABLE(checking,
317 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
318 [enable expensive run-time checks. With LIST,
319 enable only specific categories of checks.
320 Categories are: all,yes,no.
321 Flags are: stringbytes, stringoverrun, stringfreelist,
322 xmallocoverrun, conslist, glyphs])],
323 [ac_checking_flags="${enableval}"],[])
324 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
325 for check in $ac_checking_flags
328 # these set all the flags to specific states
329 yes) ac_enable_checking=1 ;;
330 no) ac_enable_checking= ;
331 ac_gc_check_stringbytes= ;
332 ac_gc_check_string_overrun= ;
333 ac_gc_check_string_free_list= ;
334 ac_xmalloc_overrun= ;
335 ac_gc_check_cons_list= ;
337 all) ac_enable_checking=1 ;
338 ac_gc_check_stringbytes=1 ;
339 ac_gc_check_string_overrun=1 ;
340 ac_gc_check_string_free_list=1 ;
341 ac_xmalloc_overrun=1 ;
342 ac_gc_check_cons_list=1 ;
344 # these enable particular checks
345 stringbytes) ac_gc_check_stringbytes=1 ;;
346 stringoverrun) ac_gc_check_string_overrun=1 ;;
347 stringfreelist) ac_gc_check_string_free_list=1 ;;
348 xmallocoverrun) ac_xmalloc_overrun=1 ;;
349 conslist) ac_gc_check_cons_list=1 ;;
350 glyphs) ac_glyphs_debug=1 ;;
351 *) AC_MSG_ERROR(unknown check category $check) ;;
356 if test x$ac_enable_checking != x ; then
357 AC_DEFINE(ENABLE_CHECKING, 1,
358 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
360 if test x$ac_gc_check_stringbytes != x ; then
361 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
362 [Define this temporarily to hunt a bug. If defined, the size of
363 strings is redundantly recorded in sdata structures so that it can
364 be compared to the sizes recorded in Lisp strings.])
366 if test x$ac_gc_check_string_overrun != x ; then
367 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
368 [Define this to check for short string overrun.])
370 if test x$ac_gc_check_string_free_list != x ; then
371 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
372 [Define this to check the string free list.])
374 if test x$ac_xmalloc_overrun != x ; then
375 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
376 [Define this to check for malloc buffer overrun.])
378 if test x$ac_gc_check_cons_list != x ; then
379 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
380 [Define this to check for errors in cons list.])
382 if test x$ac_glyphs_debug != x ; then
383 AC_DEFINE(GLYPH_DEBUG, 1,
384 [Define this to enable glyphs debugging code.])
387 AC_ARG_ENABLE(check-lisp-object-type,
388 [AS_HELP_STRING([--enable-check-lisp-object-type],
389 [enable compile time checks for the Lisp_Object data type.
390 This is useful for development for catching certain types of bugs.])],
391 if test "${enableval}" != "no"; then
392 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
393 [Define this to enable compile time checks for the Lisp_Object data type.])
397 dnl The name of this option is unfortunate. It predates, and has no
398 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
399 dnl Actually, it stops it working.
400 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
401 AC_ARG_ENABLE(profiling,
402 [AS_HELP_STRING([--enable-profiling],
403 [build emacs with low-level, gprof profiling support.
404 Mainly useful for debugging Emacs itself. May not work on
405 all platforms. Stops profiler.el working.])],
406 [ac_enable_profiling="${enableval}"],[])
407 if test x$ac_enable_profiling != x ; then
408 PROFILING_CFLAGS="-DPROFILING=1 -pg"
412 AC_SUBST(PROFILING_CFLAGS)
414 AC_ARG_ENABLE(autodepend,
415 [AS_HELP_STRING([--enable-autodepend],
416 [automatically generate dependencies to .h-files.
417 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
419 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
421 AC_ARG_ENABLE(gtk-deprecation-warnings,
422 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
423 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
424 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
426 #### Make srcdir absolute, if it isn't already. It's important to
427 #### avoid running the file name through pwd unnecessarily, since pwd can
428 #### give you automounter prefixes, which can go away. We do all this
429 #### so Emacs can find its files when run uninstalled.
430 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
433 [[\\/]]* | ?:[[\\/]]*) ;;
435 ## We may be able to use the $PWD environment variable to make this
436 ## absolute. But sometimes PWD is inaccurate.
437 ## Note: we used to use $PWD at the end instead of `pwd`,
438 ## but that tested only for a well-formed and valid PWD,
439 ## it did not object when PWD was well-formed and valid but just wrong.
440 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
444 srcdir=`(cd "$srcdir"; pwd)`
447 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
450 ### Canonicalize the configuration name.
454 configuration=${host_alias-${build_alias-$host}}
456 dnl This used to use changequote, but, apart from `changequote is evil'
457 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
458 dnl the great gob of text. Thus it's not processed for possible expansion.
459 dnl Just make sure the brackets remain balanced.
461 dnl Since Emacs can't find matching pairs of quotes, boundaries are
462 dnl indicated by comments.
466 ### If you add support for a new configuration, add code to this
467 ### switch statement to recognize your configuration name and select
468 ### the appropriate operating system file.
470 ### You would hope that you could choose an s/*.h
471 ### file based on the operating system portion. However, it turns out
472 ### that each s/*.h file is pretty manufacturer-specific.
473 ### So we basically have to have a special case for each
474 ### configuration name.
476 ### As far as handling version numbers on operating systems is
477 ### concerned, make sure things will fail in a fixable way. If
478 ### /etc/MACHINES doesn't say anything about version numbers, be
479 ### prepared to handle anything reasonably. If version numbers
480 ### matter, be sure /etc/MACHINES says something about it.
483 case "${canonical}" in
485 ## GNU/Linux and similar ports
500 ## FreeBSD kernel + glibc based userland
515 ## Apple Darwin / Mac OS X
517 case "${canonical}" in
524 ## Use fink packages if available.
525 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
526 ## if test -d /sw/include && test -d /sw/lib; then
527 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
528 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
537 ## HP 9000 series 700 and 800, running HP/UX
541 hppa*-hp-hpux1[1-9]* )
543 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
547 rs6000-ibm-aix4.[23]* )
550 powerpc-ibm-aix4.[23]* )
553 rs6000-ibm-aix[56]* )
556 powerpc-ibm-aix[56]* )
560 ## Silicon Graphics machines
564 # Without defining _LANGUAGE_C, things get masked out in the headers
565 # so that, for instance, grepping for `free' in stdlib.h fails and
566 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
567 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
572 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
573 | x86_64-*-solaris2* | x86_64-*-sunos5*)
574 case "${canonical}" in
576 amd64-*-*|x86_64-*-*) ;;
580 case "${canonical}" in
581 *-sunos5.6* | *-solaris2.6* )
585 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
587 emacs_check_sunpro_c=yes
589 *-sunos5* | *-solaris* )
591 emacs_check_sunpro_c=yes
594 ## Watch out for a compiler that we know will not work.
595 case "${canonical}" in
596 *-solaris* | *-sunos5* )
597 if [ "x$CC" = x/usr/ucb/cc ]; then
598 ## /usr/ucb/cc doesn't work;
599 ## we should find some other compiler that does work.
607 ## Intel 386 machines where we don't care about the manufacturer.
609 case "${canonical}" in
610 *-darwin* ) opsys=darwin ;;
613 # MinGW overrides and adds some system headers in nt/inc.
614 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
616 *-sysv4.2uw* ) opsys=unixware ;;
617 *-sysv5uw* ) opsys=unixware ;;
618 *-sysv5OpenUNIX* ) opsys=unixware ;;
619 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
628 ### If the code above didn't choose an operating system, just choose
629 ### an operating system based on the configuration name. You really
630 ### only want to use this when you have no idea what the right
631 ### operating system is; if you know what operating systems a machine
632 ### runs, it's cleaner to make it explicit in the case statement
634 if test x"${opsys}" = x; then
635 case "${canonical}" in
636 *-gnu* ) opsys=gnu ;;
646 if test $unported = yes; then
647 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
648 Check `etc/MACHINES' for recognized configuration names.])
652 #### Choose a compiler.
654 dnl Sets GCC=yes if using gcc.
658 if test x$GCC = xyes; then
659 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
661 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
664 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
665 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
666 dnl that clash with MinGW.
667 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
669 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
670 # as we don't use them.
671 AC_DEFUN([gl_FCNTL_O_FLAGS])
672 # Avoid gnulib's threadlib module, as we do threads our own way.
673 AC_DEFUN([gl_THREADLIB])
675 # Initialize gnulib right after choosing the compiler.
676 dnl Amongst other things, this sets AR and ARFLAGS.
679 if test "$ac_test_CFLAGS" != set; then
680 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
681 # if -g3 works and the user does not specify CFLAGS.
682 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
685 emacs_g3_CFLAGS='-g3';;
687 emacs_g3_CFLAGS='-g3 -O2';;
691 if test -n "$emacs_g3_CFLAGS"; then
692 emacs_save_CFLAGS=$CFLAGS
693 CFLAGS=$emacs_g3_CFLAGS
694 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
695 [emacs_cv_prog_cc_g3],
696 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
697 [emacs_cv_prog_cc_g3=yes],
698 [emacs_cv_prog_cc_g3=no])])
699 if test $emacs_cv_prog_cc_g3 != yes; then
700 CFLAGS=$emacs_save_CFLAGS
702 if test $opsys = mingw32; then
703 CFLAGS="$CFLAGS -gdwarf-2"
710 # No optimization flag was inferred for this non-GCC compiler.
711 # Try -O. This is needed for xlc on AIX; see Bug#14258.
712 emacs_save_CFLAGS=$CFLAGS
713 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
715 AC_CACHE_CHECK([whether $CC accepts -O],
716 [emacs_cv_prog_cc_o],
717 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
718 [emacs_cv_prog_cc_o=yes],
719 [emacs_cv_prog_cc_o=no])])
720 if test $emacs_cv_prog_cc_o != yes; then
721 CFLAGS=$emacs_save_CFLAGS
726 AC_ARG_ENABLE([gcc-warnings],
727 [AS_HELP_STRING([--enable-gcc-warnings],
728 [turn on lots of GCC warnings/errors. This is intended for
729 developers, and may generate false alarms when used
730 with older or non-GNU development tools.])],
733 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
735 gl_gcc_warnings=$enableval],
739 AC_ARG_ENABLE(link-time-optimization,
740 [AS_HELP_STRING([--enable-link-time-optimization],
741 [build emacs with link-time optimization.
742 This is supported only for GCC since 4.5.0.])],
743 if test "${enableval}" != "no"; then
744 AC_MSG_CHECKING([whether link-time optimization is supported])
746 if test x$GCC = xyes; then
747 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
748 if test x$CPUS != x; then
754 CFLAGS="$CFLAGS $LTO"
755 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
756 [ac_lto_supported=yes], [ac_lto_supported=no])
759 AC_MSG_RESULT([$ac_lto_supported])
760 if test "$ac_lto_supported" = "yes"; then
761 CFLAGS="$CFLAGS $LTO"
765 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
766 # ------------------------------------------------
767 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
768 # Otherwise, run RUN-IF-NOT-FOUND.
769 AC_DEFUN([gl_GCC_VERSION_IFELSE],
773 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
776 # error "your version of gcc is older than $1.$2"
783 # When compiling with GCC, prefer -isystem to -I when including system
784 # include files, to avoid generating useless diagnostics for the files.
785 if test "$gl_gcc_warnings" != yes; then
790 # This, $nw, is the list of warnings we disable.
793 case $with_x_toolkit in
794 lucid | athena | motif)
795 # Old toolkits mishandle 'const'.
796 nw="$nw -Wwrite-strings"
799 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
802 AC_SUBST([WERROR_CFLAGS])
804 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
805 nw="$nw -Woverlength-strings" # Not a problem these days
806 nw="$nw -Wlogical-op" # any use of fwrite provokes this
807 nw="$nw -Wformat-nonliteral" # we do this a lot
808 nw="$nw -Wvla" # warnings in gettext.h
809 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
810 nw="$nw -Wswitch-default" # Too many warnings for now
811 nw="$nw -Winline" # OK to ignore 'inline'
812 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
813 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
814 # signed overflow has undefined behavior
815 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
816 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
817 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
819 # Emacs doesn't care about shadowing; see
820 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
823 # Emacs's use of alloca inhibits protecting the stack.
824 nw="$nw -Wstack-protector"
826 # The following line should be removable at some point.
827 nw="$nw -Wsuggest-attribute=pure"
829 # clang is unduly picky about some things.
830 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
837 [emacs_cv_clang=yes],
838 [emacs_cv_clang=no])])
839 if test $emacs_cv_clang = yes; then
840 nw="$nw -Wcast-align"
843 gl_MANYWARN_ALL_GCC([ws])
844 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
848 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
849 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
850 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
851 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
852 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
853 gl_WARN_ADD([-Wno-format-nonliteral])
855 # In spite of excluding -Wlogical-op above, it is enabled, as of
856 # gcc 4.5.0 20090517.
857 gl_WARN_ADD([-Wno-logical-op])
859 # More things that clang is unduly picky about.
860 if test $emacs_cv_clang = yes; then
861 gl_WARN_ADD([-Wno-format-extra-args])
862 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
863 gl_WARN_ADD([-Wno-unused-command-line-argument])
864 gl_WARN_ADD([-Wno-unused-value])
867 gl_WARN_ADD([-fdiagnostics-show-option])
868 gl_WARN_ADD([-funit-at-a-time])
870 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
871 AH_VERBATIM([FORTIFY_SOURCE],
872 [/* Enable compile-time and run-time bounds-checking, and some warnings,
873 without upsetting glibc 2.15+. */
874 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
875 # define _FORTIFY_SOURCE 2
878 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
880 # We use a slightly smaller set of warning options for lib/.
881 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
883 nw="$nw -Wunused-macros"
885 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
886 AC_SUBST([GNULIB_WARN_CFLAGS])
891 dnl Some other nice autoconf tests.
892 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
895 dnl if test "x$RANLIB" = x; then
900 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
901 dnl can be made to directories. This is not relevant for our usage, and
902 dnl excludes some cases that work fine for us. Eg MS Windows or files
903 dnl hosted on AFS, both examples where simple links work, but links to
904 dnl directories fail. We use a cut-down version instead.
907 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
908 rm -f conf$$ conf$$.file
910 LN_S_FILEONLY='cp -p'
912 if (echo >conf$$.file) 2>/dev/null; then
913 if ln -s conf$$.file conf$$ 2>/dev/null; then
914 LN_S_FILEONLY='ln -s'
915 elif ln conf$$.file conf$$ 2>/dev/null; then
920 rm -f conf$$ conf$$.file
922 if test "$LN_S_FILEONLY" = "ln -s"; then
925 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
928 AC_SUBST(LN_S_FILEONLY)
931 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
932 dnl doesn't support links to directories, as in "ln file dir". But that
933 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
934 dnl executables at "make install" time.
935 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
936 dnl for more details.
937 if test "$opsys" = "mingw32"; then
941 AC_PATH_PROG(INSTALL_INFO, install-info, :,
942 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
943 dnl Don't use GZIP, which is used by gzip for additional parameters.
944 AC_PATH_PROG(GZIP_PROG, gzip)
946 if test $opsys = gnu-linux; then
947 AC_PATH_PROG(PAXCTL, paxctl,,
948 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
949 if test "X$PAXCTL" != X; then
950 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
951 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
952 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
953 else AC_MSG_RESULT(no); PAXCTL=""; fi])
957 ## Need makeinfo >= 4.7 (?) to build the manuals.
958 AC_PATH_PROG(MAKEINFO, makeinfo, no)
959 dnl By this stage, configure has already checked for egrep and set EGREP,
960 dnl or exited with an error if no egrep was found.
961 if test "$MAKEINFO" != "no"; then
963 $MAKEINFO --version 2> /dev/null |
964 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
970 ## Makeinfo is unusual. For a released Emacs, the manuals are
971 ## pre-built, and not deleted by the normal clean rules. makeinfo is
972 ## therefore in the category of "special tools" not normally required, which
973 ## configure does not have to check for (eg autoconf itself).
974 ## In a Bazaar checkout on the other hand, the manuals are not included.
975 ## So makeinfo is a requirement to build from Bazaar, and configure
976 ## should test for it as it does for any other build requirement.
977 ## We use the presence of $srcdir/info/emacs to distinguish a release,
978 ## with pre-built manuals, from a Bazaar checkout.
981 if test "$MAKEINFO" = "no"; then
983 if test "x${with_makeinfo}" = "xno"; then
985 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
986 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
987 source tree does not seem to have pre-built manuals in the `info' directory.
988 Either install a suitable version of makeinfo, or re-run configure
989 with the `--without-makeinfo' option to build without the manuals.] )
992 AC_SUBST(HAVE_MAKEINFO)
994 dnl Just so that there is only a single place we need to edit.
1000 if test $opsys = mingw32; then
1001 DOCMISC_W32=efaq-w32
1005 AC_SUBST(DOCMISC_W32)
1007 dnl Add our options to ac_link now, after it is set up.
1009 if test x$GCC = xyes; then
1010 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1011 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1013 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1014 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1017 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1018 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1019 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1020 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1021 dnl if not built to support GNU ld.
1023 late_LDFLAGS=$LDFLAGS
1024 if test x$GCC = xyes; then
1025 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
1027 LDFLAGS="$LDFLAGS -znocombreloc"
1030 AC_MSG_CHECKING([for -znocombreloc])
1031 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1032 [AC_MSG_RESULT(yes)],
1033 LDFLAGS=$late_LDFLAGS
1034 [AC_MSG_RESULT(no)])
1037 dnl The function dump-emacs will not be defined and temacs will do
1038 dnl (load "loadup") automatically unless told otherwise.
1039 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1041 your-opsys-here) CANNOT_DUMP=yes ;;
1044 test "$CANNOT_DUMP" = "yes" && \
1045 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1047 AC_SUBST(CANNOT_DUMP)
1050 UNEXEC_OBJ=unexelf.o
1052 # MSDOS uses unexcoff.o
1054 UNEXEC_OBJ=unexaix.o
1060 UNEXEC_OBJ=unexmacosx.o
1063 UNEXEC_OBJ=unexhp9k800.o
1066 UNEXEC_OBJ=unexw32.o
1069 # Use the Solaris dldump() function, called from unexsol.c, to dump
1070 # emacs, instead of the generic ELF dump code found in unexelf.c.
1071 # The resulting binary has a complete symbol table, and is better
1072 # for debugging and other observability tools (debuggers, pstack, etc).
1074 # If you encounter a problem using dldump(), please consider sending
1075 # a message to the OpenSolaris tools-linking mailing list:
1076 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1078 # It is likely that dldump() works with older Solaris too, but this has
1079 # not been tested, so for now this change is for Solaris 10 or newer.
1080 UNEXEC_OBJ=unexsol.o
1087 ## Let `ld' find image libs and similar things in /usr/local/lib.
1088 ## The system compiler, GCC, has apparently been modified to not
1089 ## look there, contrary to what a stock GCC would do.
1090 ### It's not our place to do this. See bug#10313#17.
1091 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1096 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1097 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1101 ### It's not our place to do this. See bug#10313#17.
1102 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1107 ## Han Boetes <han@boetes.org> says this is necessary,
1108 ## otherwise Emacs dumps core on elf systems.
1109 LD_SWITCH_SYSTEM="-Z"
1112 AC_SUBST(LD_SWITCH_SYSTEM)
1114 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1116 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1117 ## which has not been defined yet. When this was handled with cpp,
1118 ## it was expanded to null when configure sourced the s/*.h file.
1119 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1120 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1121 ## (or somesuch), but because it is supposed to go at the _front_
1122 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1123 ## Compare with the gnu-linux case below, which added to the end
1124 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1125 ## LD_SWITCH_SYSTEM_TEMACS.
1128 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1135 AC_CHECK_DECL([__ELF__])
1136 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1137 ## With ELF, make sure that all common symbols get allocated to in the
1138 ## data section. Otherwise, the dump of temacs may miss variables in
1139 ## the shared library that have been initialized. For example, with
1140 ## GNU libc, __malloc_initialized would normally be resolved to the
1141 ## shared library's .bss section, which is fatal.
1142 if test "x$GCC" = "xyes"; then
1143 C_SWITCH_MACHINE="-fno-common"
1145 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1148 UNEXEC_OBJ=unexalpha.o
1152 AC_SUBST(C_SWITCH_MACHINE)
1154 AC_SUBST(UNEXEC_OBJ)
1157 ## Some programs in src produce warnings saying certain subprograms
1158 ## are too complex and need a MAXMEM value greater than 2000 for
1159 ## additional optimization. --nils@exp-math.uni-essen.de
1160 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1161 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1162 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1163 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1164 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1165 AC_SUBST(C_SWITCH_SYSTEM)
1170 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1171 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1173 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1175 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1177 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1179 ## Motif needs -lgen.
1180 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1183 AC_SUBST(LIBS_SYSTEM)
1185 ### Make sure subsequent tests use flags consistent with the build flags.
1187 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1188 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1190 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1193 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1194 AC_DEFUN([AC_TYPE_SIZE_T])
1195 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1196 AC_DEFUN([AC_TYPE_UID_T])
1200 dnl Current possibilities handled by sed (aix4-2 -> aix,
1201 dnl gnu-linux -> gnu/linux, etc.):
1202 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1203 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1204 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1211 ## Adding -lm confuses the dynamic linker, so omit it.
1214 freebsd | dragonfly )
1215 SYSTEM_TYPE=berkeley-unix
1217 gnu-linux | gnu-kfreebsd )
1219 hpux10-20 | hpux11 )
1223 SYSTEM_TYPE=windows-nt
1225 dnl NB this may be adjusted below.
1227 SYSTEM_TYPE=berkeley-unix
1231 SYSTEM_TYPE=usg-unix-v
1237 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1238 [The type of system you are compiling for; sets `system-type'.])
1241 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1242 pre_PKG_CONFIG_LIBS=$LIBS
1244 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1246 dnl This function definition taken from Gnome 2.0
1247 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1248 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1249 dnl also defines GSTUFF_PKG_ERRORS on error
1250 AC_DEFUN([PKG_CHECK_MODULES], [
1253 if test "$PKG_CONFIG" = "no" ; then
1254 ifelse([$4], , [AC_MSG_ERROR([
1255 *** The pkg-config script could not be found. Make sure it is in your path, or give the full name of pkg-config with the PKG_CONFIG environment variable or --with-pkg-config-prog. Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config.])], [$4])
1257 PKG_CONFIG_MIN_VERSION=0.9.0
1258 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1259 AC_MSG_CHECKING(for $2)
1261 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1262 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1263 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1270 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1271 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1272 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1278 ## If we have a custom action on failure, don't print errors, but
1279 ## do set a variable so people can do so. Do it in a subshell
1280 ## to capture any diagnostics in invoking pkg-config.
1281 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1282 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1288 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1289 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1293 if test $succeeded = yes; then
1294 ifelse([$3], , :, [$3])
1296 ifelse([$4], , [AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.])], [$4])
1301 if test "${with_sound}" != "no"; then
1302 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1303 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1304 have_sound_header=yes, [], [
1306 #define WIN32_LEAN_AND_MEAN
1307 #include <windows.h>
1310 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1311 AC_MSG_ERROR([OSS sound support requested but not found.])
1313 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1314 # Emulation library used on NetBSD.
1315 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1316 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1317 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1318 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1319 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1323 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1325 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1326 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1327 if test $HAVE_ALSA = yes; then
1328 SAVE_CFLAGS="$CFLAGS"
1330 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1331 LIBS="$ALSA_LIBS $LIBS"
1332 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1333 emacs_alsa_normal=yes,
1334 emacs_alsa_normal=no)
1335 if test "$emacs_alsa_normal" != yes; then
1336 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1337 [[snd_lib_error_set_handler (0);]])],
1338 emacs_alsa_subdir=yes,
1339 emacs_alsa_subdir=no)
1340 if test "$emacs_alsa_subdir" != yes; then
1341 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1343 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1346 CFLAGS="$SAVE_CFLAGS"
1348 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1349 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1350 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1351 elif test "${with_sound}" = "alsa"; then
1352 AC_MSG_ERROR([ALSA sound support requested but not found.])
1354 fi dnl with_sound = alsa|yes
1356 dnl Define HAVE_SOUND if we have sound support. We know it works and
1357 dnl compiles only on the specified platforms. For others, it
1358 dnl probably doesn't make sense to try.
1359 dnl FIXME So surely we should bypass this whole section if not using
1360 dnl one of these platforms?
1361 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1363 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1364 dnl Adjust the --with-sound help text if you change this.
1365 gnu-linux|freebsd|netbsd|mingw32)
1366 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1372 AC_SUBST(CFLAGS_SOUND)
1375 dnl checks for header files
1376 AC_CHECK_HEADERS_ONCE(
1380 sys/utsname.h pwd.h utmp.h util.h)
1382 AC_MSG_CHECKING(if personality LINUX32 can be set)
1383 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1384 emacs_cv_personality_linux32=yes,
1385 emacs_cv_personality_linux32=no)
1386 AC_MSG_RESULT($emacs_cv_personality_linux32)
1388 if test $emacs_cv_personality_linux32 = yes; then
1389 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1390 [Define to 1 if personality LINUX32 can be set.])
1393 dnl On Solaris 8 there's a compilation warning for term.h because
1394 dnl it doesn't define `bool'.
1395 AC_CHECK_HEADERS(term.h, , , -)
1397 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1399 if test $ac_cv_have_decl_sys_siglist != yes; then
1400 # For Tru64, at least:
1401 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1406 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1407 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1408 #if HAVE_SYS_SOCKET_H
1409 #include <sys/socket.h>
1411 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1412 #if HAVE_SYS_SOCKET_H
1413 #include <sys/socket.h>
1415 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1416 #if HAVE_SYS_SOCKET_H
1417 #include <sys/socket.h>
1420 dnl checks for structure members
1421 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1422 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1423 struct ifreq.ifr_addr,
1424 struct ifreq.ifr_addr.sa_len], , ,
1425 [AC_INCLUDES_DEFAULT
1426 #if HAVE_SYS_SOCKET_H
1427 #include <sys/socket.h>
1433 dnl Check for endianness.
1434 dnl AC_C_BIGENDIAN is done by gnulib.
1436 dnl check for Make feature
1437 dnl AC_PROG_MAKE_SET is done by Automake.
1442 dnl check for GNU Make if we have GCC and autodepend is on.
1443 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1444 AC_MSG_CHECKING([whether we are using GNU Make])
1446 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1447 if test "x$testval" != x; then
1450 ac_enable_autodepend=no
1452 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1453 if test $HAVE_GNU_MAKE = yes; then
1454 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1455 SAVE_CFLAGS="$CFLAGS"
1456 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1457 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1458 CFLAGS="$SAVE_CFLAGS"
1459 test -f deps.d || ac_enable_autodepend=no
1461 AC_MSG_RESULT([$ac_enable_autodepend])
1463 if test $ac_enable_autodepend = yes; then
1464 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1465 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1466 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1467 deps_frag=autodeps.mk
1470 deps_frag=$srcdir/src/$deps_frag
1473 AC_SUBST_FILE(deps_frag)
1476 lisp_frag=$srcdir/src/lisp.mk
1477 AC_SUBST_FILE(lisp_frag)
1480 dnl checks for operating system services
1481 AC_SYS_LONG_FILE_NAMES
1483 #### Choose a window system.
1485 ## We leave window_system equal to none if
1486 ## we end up building without one. Any new window system should
1487 ## set window_system to an appropriate value and add objects to
1488 ## window-system-specific substs.
1492 if test "$no_x" != yes; then
1496 LD_SWITCH_X_SITE_RPATH=
1497 if test "${x_libraries}" != NONE; then
1498 if test -n "${x_libraries}"; then
1499 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1500 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1502 x_default_search_path=""
1503 x_search_path=${x_libraries}
1504 if test -z "${x_search_path}"; then
1505 x_search_path=/usr/lib
1507 for x_library in `echo ${x_search_path}: | \
1508 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1510 ${x_library}/X11/%L/%T/%N%C%S:\
1511 ${x_library}/X11/%l/%T/%N%C%S:\
1512 ${x_library}/X11/%T/%N%C%S:\
1513 ${x_library}/X11/%L/%T/%N%S:\
1514 ${x_library}/X11/%l/%T/%N%S:\
1515 ${x_library}/X11/%T/%N%S"
1516 if test x"${x_default_search_path}" = x; then
1517 x_default_search_path=${x_search_path}
1519 x_default_search_path="${x_search_path}:${x_default_search_path}"
1523 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1525 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1526 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1529 if test x"${x_includes}" = x; then
1530 bitmapdir=/usr/include/X11/bitmaps
1532 # accumulate include directories that have X11 bitmap subdirectories
1534 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1535 if test -d "${bmd}/X11/bitmaps"; then
1536 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1538 if test -d "${bmd}/bitmaps"; then
1539 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1542 if test ${bmd_acc} != "dummyval"; then
1543 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1550 tmp_CPPFLAGS="$CPPFLAGS"
1551 tmp_CFLAGS="$CFLAGS"
1552 CPPFLAGS="$CPPFLAGS -x objective-c"
1553 CFLAGS="$CFLAGS -x objective-c"
1556 if test "${with_ns}" != no; then
1557 if test "${opsys}" = darwin; then
1559 ns_appdir=`pwd`/nextstep/Emacs.app
1560 ns_appbindir=${ns_appdir}/Contents/MacOS
1561 ns_appresdir=${ns_appdir}/Contents/Resources
1562 ns_appsrc=Cocoa/Emacs.base
1563 elif test -f $GNUSTEP_CONFIG_FILE; then
1565 ns_appdir=`pwd`/nextstep/Emacs.app
1566 ns_appbindir=${ns_appdir}
1567 ns_appresdir=${ns_appdir}/Resources
1568 ns_appsrc=GNUstep/Emacs.base
1569 dnl FIXME sourcing this several times in subshells seems inefficient.
1570 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1571 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1572 dnl I seemed to need these as well with GNUstep-startup 0.25.
1573 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1574 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1575 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1576 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1577 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1578 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1579 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1580 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1581 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1582 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1583 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1584 dnl If they had chosen to either define it or not, we could have
1585 dnl just used AC_CHECK_DECL here.
1586 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1587 emacs_cv_objc_exceptions,
1588 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1589 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1593 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1594 if test $emacs_cv_objc_exceptions = yes; then
1595 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1596 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1597 [Define if GNUstep uses ObjC exceptions.])
1598 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1602 dnl This is only used while we test the NS headers, it gets reset below.
1603 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1605 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1606 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1607 files are missing or cannot be compiled.])])
1609 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1611 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1612 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1615 #error "OSX 10.4 or newer required"
1619 ns_osx_have_104=yes,
1621 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1623 ns_have_nsinteger=yes,
1624 ns_have_nsinteger=no)
1625 if test $ns_osx_have_104 = no; then
1626 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1628 if test $ns_have_nsinteger = yes; then
1629 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1633 AC_SUBST(LIBS_GNUSTEP)
1635 INSTALL_ARCH_INDEP_EXTRA=install-etc
1636 ns_self_contained=no
1639 if test "${HAVE_NS}" = yes; then
1640 if test "$with_toolkit_scroll_bars" = "no"; then
1641 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1644 window_system=nextstep
1645 # set up packaging dirs
1646 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1647 ns_self_contained=yes
1648 prefix=${ns_appresdir}
1649 exec_prefix=${ns_appbindir}
1650 dnl This one isn't really used, only archlibdir is.
1651 libexecdir="\${ns_appbindir}/libexec"
1652 archlibdir="\${ns_appbindir}/libexec"
1653 etcdocdir="\${ns_appresdir}/etc"
1654 etcdir="\${ns_appresdir}/etc"
1655 dnl FIXME maybe set datarootdir instead.
1656 dnl That would also get applications, icons, man.
1657 infodir="\${ns_appresdir}/info"
1658 mandir="\${ns_appresdir}/man"
1659 lispdir="\${ns_appresdir}/lisp"
1660 leimdir="\${ns_appresdir}/leim"
1661 INSTALL_ARCH_INDEP_EXTRA=
1663 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1665 CFLAGS="$tmp_CFLAGS"
1666 CPPFLAGS="$tmp_CPPFLAGS"
1667 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1668 AC_SUBST(ns_self_contained)
1670 AC_SUBST(NS_OBJC_OBJ)
1681 if test "${with_w32}" != no; then
1684 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1685 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1686 cannot be found.])])
1689 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1692 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1697 if test "${opsys}" = "mingw32"; then
1698 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1699 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1700 #include <windows.h>
1701 #include <usp10.h>]],
1702 [[PIMAGE_NT_HEADERS pHeader;
1703 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1704 [emacs_cv_w32api=yes
1707 AC_MSG_RESULT($emacs_cv_w32api)
1708 if test "${emacs_cv_w32api}" = "no"; then
1709 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1720 if test "${HAVE_W32}" = "yes"; then
1721 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1722 AC_CHECK_TOOL(WINDRES, [windres],
1723 [AC_MSG_ERROR([No resource compiler found.])])
1724 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1725 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1726 EMACSRES="emacs.res"
1727 case "$canonical" in
1728 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1729 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1731 UPDATE_MANIFEST=update-game-score.exe.manifest
1732 if test "${opsys}" = "cygwin"; then
1733 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1734 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1735 # Tell the linker that emacs.res is an object (which we compile from
1736 # the rc file), not a linker script.
1737 W32_RES_LINK="-Wl,emacs.res"
1739 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1740 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1741 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1742 W32_RES_LINK="\$(EMACSRES)"
1743 CLIENTRES="emacsclient.res"
1744 CLIENTW="emacsclientw\$(EXEEXT)"
1745 FIRSTFILE_OBJ=firstfile.o
1748 LIBS_ECLIENT="-lcomctl32"
1749 LIB_WSOCK32="-lwsock32"
1750 NTLIB="ntlib.$ac_objext"
1751 XARGS_LIMIT="-s 10000"
1757 AC_SUBST(EMACS_MANIFEST)
1758 AC_SUBST(UPDATE_MANIFEST)
1761 AC_SUBST(W32_RES_LINK)
1762 AC_SUBST(FIRSTFILE_OBJ)
1765 AC_SUBST(LIBS_ECLIENT)
1766 AC_SUBST(LIB_WSOCK32)
1768 AC_SUBST(XARGS_LIMIT)
1770 if test "${HAVE_W32}" = "yes"; then
1775 ## $window_system is now set to the window system we will
1778 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1779 # Too many warnings for now.
1780 gl_WARN_ADD([-Wno-unused-variable])
1781 gl_WARN_ADD([-Wno-unused-but-set-variable])
1782 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1790 case "${window_system}" in
1795 case "${with_x_toolkit}" in
1796 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1797 motif ) USE_X_TOOLKIT=MOTIF ;;
1799 term_header=gtkutil.h
1800 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1801 dnl USE_X_TOOLKIT is set.
1802 USE_X_TOOLKIT=none ;;
1803 gtk2 ) with_gtk2=yes
1804 term_header=gtkutil.h
1805 USE_X_TOOLKIT=none ;;
1806 gtk3 ) with_gtk3=yes
1807 term_header=gtkutil.h
1808 USE_X_TOOLKIT=none ;;
1809 no ) USE_X_TOOLKIT=none ;;
1810 dnl If user did not say whether to use a toolkit, make this decision later:
1811 dnl use the toolkit if we have gtk, or X11R5 or newer.
1812 * ) USE_X_TOOLKIT=maybe ;;
1816 term_header=nsterm.h
1819 term_header=w32term.h
1823 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1824 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1825 if test "$HAVE_XSERVER" = true ||
1826 test -n "$DISPLAY" ||
1827 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1828 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1829 were found. You should install the relevant development files for X
1830 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1831 sure you have development files for image handling, i.e.
1832 tiff, gif, jpeg, png and xpm.
1833 If you are sure you want Emacs compiled without X window support, pass
1839 ### If we're using X11, we should use the X menu package.
1842 yes ) HAVE_MENUS=yes ;;
1845 # Does the opsystem file prohibit the use of the GNU malloc?
1846 # Assume not, until told otherwise.
1850 [whether malloc is Doug Lea style],
1851 [emacs_cv_var_doug_lea_malloc],
1854 [[#include <malloc.h>
1855 static void hook (void) {}]],
1856 [[malloc_set_state (malloc_get_state ());
1857 __after_morecore_hook = hook;
1858 __malloc_initialize_hook = hook;]])],
1859 [emacs_cv_var_doug_lea_malloc=yes],
1860 [emacs_cv_var_doug_lea_malloc=no])])
1861 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1864 dnl See comments in aix4-2.h about maybe using system malloc there.
1867 ## darwin ld insists on the use of malloc routines in the System framework.
1868 darwin|sol2-10) system_malloc=yes ;;
1871 if test "${system_malloc}" = "yes"; then
1872 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1875 (The GNU allocators don't work with this system configuration.)"
1879 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1880 VMLIMIT_OBJ=vm-limit.o
1882 AC_CHECK_HEADERS([sys/vlimit.h])
1883 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1886 [[extern char data_start[]; char ch;]],
1887 [[return data_start < &ch;]])],
1888 [emacs_cv_data_start=yes],
1889 [emacs_cv_data_start=no])])
1890 if test $emacs_cv_data_start = yes; then
1891 AC_DEFINE([HAVE_DATA_START], 1,
1892 [Define to 1 if data_start is the address of the start
1893 of the main data segment.])
1896 AC_SUBST(GMALLOC_OBJ)
1897 AC_SUBST(VMLIMIT_OBJ)
1899 if test "$doug_lea_malloc" = "yes" ; then
1900 if test "$GNU_MALLOC" = yes ; then
1902 (Using Doug Lea's new malloc from the GNU C Library.)"
1904 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1905 [Define to 1 if you are using the GNU C Library.])
1907 ## Use mmap directly for allocating larger buffers.
1908 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1909 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1910 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1912 gnu*) REL_ALLOC=no ;;
1916 if test x"${REL_ALLOC}" = x; then
1917 REL_ALLOC=${GNU_MALLOC}
1920 use_mmap_for_buffers=no
1922 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1926 if test $use_mmap_for_buffers = yes; then
1927 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1931 LIBS="$LIBS_SYSTEM $LIBS"
1933 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1934 AC_CHECK_LIB(dnet, dnet_ntoa)
1935 dnl This causes -lresolv to get used in subsequent tests,
1936 dnl which causes failures on some systems such as HPUX 9.
1937 dnl AC_CHECK_LIB(resolv, gethostbyname)
1939 dnl FIXME replace main with a function we actually want from this library.
1940 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1942 dnl Check if pthreads is available.
1944 AC_CHECK_HEADERS_ONCE(pthread.h)
1945 if test "$ac_cv_header_pthread_h"; then
1946 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1947 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1948 dnl testing for pthread_self if Emacs uses gmalloc.c.
1949 if test "$GMALLOC_OBJ" = gmalloc.o; then
1950 emacs_pthread_function=pthread_atfork
1952 emacs_pthread_function=pthread_self
1954 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1956 if test "$HAVE_PTHREAD" = yes; then
1957 case "${canonical}" in
1959 *) LIB_PTHREAD="-lpthread"
1960 LIBS="$LIB_PTHREAD $LIBS" ;;
1962 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1964 AC_SUBST([LIB_PTHREAD])
1966 AC_CHECK_LIB(pthreads, cma_open)
1968 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1969 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1970 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1971 ## added to LIBS in configure would never contain the pthreads part,
1972 ## but the value used in Makefiles might. FIXME?
1974 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1975 ## be harmless on older versions of X where it happens to exist.
1976 test "$opsys" = "aix4-2" && \
1977 test $ac_cv_lib_pthreads_cma_open = yes && \
1978 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1980 dnl Check for need for bigtoc support on IBM AIX
1984 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1986 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1987 *) gdb_cv_bigtoc=-bbigtoc ;;
1990 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1991 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1996 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1997 # used for the tests that follow. We set them back to REAL_CFLAGS and
1998 # REAL_CPPFLAGS later on.
2000 REAL_CFLAGS="$CFLAGS"
2001 REAL_CPPFLAGS="$CPPFLAGS"
2003 if test "${HAVE_X11}" = "yes"; then
2004 DEFS="$C_SWITCH_X_SITE $DEFS"
2005 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2007 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2008 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2010 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2011 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2012 # but it's more convenient here to set LD_RUN_PATH since this
2013 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2014 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2015 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2019 if test "${opsys}" = "gnu-linux"; then
2020 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2021 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2022 [[XOpenDisplay ("foo");]])],
2023 [xgnu_linux_first_failure=no],
2024 [xgnu_linux_first_failure=yes])
2025 if test "${xgnu_linux_first_failure}" = "yes"; then
2026 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2027 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2028 OLD_CPPFLAGS="$CPPFLAGS"
2030 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2031 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2032 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2033 LIBS="$LIBS -b i486-linuxaout"
2034 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2035 [[XOpenDisplay ("foo");]])],
2036 [xgnu_linux_second_failure=no],
2037 [xgnu_linux_second_failure=yes])
2038 if test "${xgnu_linux_second_failure}" = "yes"; then
2039 # If we get the same failure with -b, there is no use adding -b.
2040 # So take it out. This plays safe.
2041 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2042 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2043 CPPFLAGS="$OLD_CPPFLAGS"
2054 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2055 # header files included from there.
2056 AC_MSG_CHECKING(for Xkb)
2057 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2058 #include <X11/XKBlib.h>]],
2059 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2060 emacs_xkb=yes, emacs_xkb=no)
2061 AC_MSG_RESULT($emacs_xkb)
2062 if test $emacs_xkb = yes; then
2063 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2066 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2067 XScreenNumberOfScreen)
2070 if test "${window_system}" = "x11"; then
2071 AC_MSG_CHECKING(X11 version 6)
2072 AC_CACHE_VAL(emacs_cv_x11_version_6,
2073 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2074 [[#if XlibSpecificationRelease < 6
2077 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2078 if test $emacs_cv_x11_version_6 = yes; then
2079 AC_MSG_RESULT(6 or newer)
2080 AC_DEFINE(HAVE_X11R6, 1,
2081 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2082 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2083 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2087 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2088 [Define if you have usable X11R6-style XIM support.])
2092 AC_MSG_RESULT(before 6)
2097 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2099 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2100 if test "${with_rsvg}" != "no"; then
2101 RSVG_REQUIRED=2.11.0
2102 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2104 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2105 AC_SUBST(RSVG_CFLAGS)
2108 if test $HAVE_RSVG = yes; then
2109 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2110 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2111 LIBS="$RSVG_LIBS $LIBS"
2117 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2118 if test "${with_imagemagick}" != "no"; then
2119 ## 6.2.8 is the earliest version known to work, but earlier versions
2120 ## might work - let us know if you find one.
2121 ## 6.0.7 does not work. See bug#7955.
2122 ## 6.8.2 makes Emacs crash; see Bug#13867.
2123 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2124 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2125 AC_SUBST(IMAGEMAGICK_CFLAGS)
2126 AC_SUBST(IMAGEMAGICK_LIBS)
2128 if test $HAVE_IMAGEMAGICK = yes; then
2129 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2130 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2131 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2132 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2140 gtk_term_header=$term_header
2143 if test "${opsys}" != "mingw32"; then
2144 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2147 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2149 dnl Checks for libraries.
2150 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2151 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2152 AC_MSG_ERROR($GTK_PKG_ERRORS)
2154 if test "$pkg_check_gtk" = "yes"; then
2155 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2156 GTK_OBJ=emacsgtkfixed.o
2157 gtk_term_header=gtkutil.h
2158 USE_GTK_TOOLKIT="GTK3"
2159 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2160 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2161 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2165 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2169 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2172 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2174 dnl Checks for libraries.
2175 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2176 if test "$pkg_check_gtk" = "no" &&
2177 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2179 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2181 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2185 if test x"$pkg_check_gtk" = xyes; then
2187 AC_SUBST(GTK_CFLAGS)
2189 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2190 CFLAGS="$CFLAGS $GTK_CFLAGS"
2191 LIBS="$GTK_LIBS $LIBS"
2192 dnl Try to compile a simple GTK program.
2193 AC_MSG_CHECKING([whether GTK compiles])
2197 [[/* Check the Gtk and Glib APIs. */
2198 #include <gtk/gtk.h>
2199 #include <glib-object.h>
2201 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2205 GtkSettings *gs = 0;
2206 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2207 strict C prohibits this. Use gtk_main_iteration to test that the
2208 libraries are there. */
2209 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2210 0, 0, 0, G_CALLBACK (callback), 0))
2211 gtk_main_iteration ();
2214 AC_MSG_RESULT([$GTK_COMPILES])
2215 if test "${GTK_COMPILES}" != "yes"; then
2217 if test "$USE_X_TOOLKIT" != "maybe"; then
2218 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2222 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2223 GTK_OBJ="gtkutil.o $GTK_OBJ"
2224 term_header=$gtk_term_header
2226 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2229 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2230 closing open displays. This is no problem if you just use
2231 one display, but if you use more than one and close one of them
2241 if test "${HAVE_GTK}" = "yes"; then
2243 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2244 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2245 if test "$with_toolkit_scroll_bars" != no; then
2246 with_toolkit_scroll_bars=yes
2249 dnl Check if we have the old file selection dialog declared and
2250 dnl in the link library. In 2.x it may be in the library,
2251 dnl but not declared if deprecated featured has been selected out.
2252 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2253 HAVE_GTK_FILE_SELECTION=no
2254 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2255 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2256 #include <gtk/gtk.h>])
2257 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2258 AC_CHECK_FUNCS(gtk_file_selection_new)
2261 dnl Same as above for gtk_handle_box.
2262 HAVE_GTK_HANDLE_BOX=no
2263 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2264 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2265 #include <gtk/gtk.h>])
2266 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2267 AC_CHECK_FUNCS(gtk_handle_box_new)
2270 dnl Same as above for gtk_tearoff_menu_item.
2271 HAVE_GTK_TEAROFF_MENU_ITEM=no
2272 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2273 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2274 #include <gtk/gtk.h>])
2275 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2276 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2279 dnl Check for functions introduced in 2.14 and later.
2280 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2281 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2282 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2283 gtk_orientable_set_orientation \
2284 gtk_window_set_has_resize_grip)
2286 term_header=gtkutil.h
2289 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2290 dnl other platforms.
2293 if test "${with_dbus}" = "yes"; then
2294 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2295 if test "$HAVE_DBUS" = yes; then
2296 LIBS="$LIBS $DBUS_LIBS"
2297 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2298 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2299 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2301 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2302 dbus_type_is_valid \
2303 dbus_validate_bus_name \
2304 dbus_validate_path \
2305 dbus_validate_interface \
2306 dbus_validate_member)
2312 dnl GSettings has been tested under GNU/Linux only.
2314 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2315 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2316 if test "$HAVE_GSETTINGS" = "yes"; then
2317 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2318 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2319 SETTINGS_LIBS="$GSETTINGS_LIBS"
2323 dnl GConf has been tested under GNU/Linux only.
2324 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2326 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2327 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2328 if test "$HAVE_GCONF" = yes; then
2329 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2330 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2331 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2332 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2336 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2337 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2338 if test "$HAVE_GOBJECT" = "yes"; then
2339 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2340 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2342 SAVE_CFLAGS="$CFLAGS"
2344 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2345 LIBS="$SETTINGS_LIBS $LIBS"
2346 AC_CHECK_FUNCS([g_type_init])
2347 CFLAGS="$SAVE_CFLAGS"
2350 AC_SUBST(SETTINGS_CFLAGS)
2351 AC_SUBST(SETTINGS_LIBS)
2354 dnl SELinux is available for GNU/Linux only.
2357 if test "${with_selinux}" = "yes"; then
2358 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2359 if test "$HAVE_LIBSELINUX" = yes; then
2360 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2361 LIBSELINUX_LIBS=-lselinux
2364 AC_SUBST(LIBSELINUX_LIBS)
2367 if test "${with_gnutls}" = "yes" ; then
2368 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2369 if test "${HAVE_GNUTLS}" = "yes"; then
2370 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2373 # Windows loads GnuTLS dynamically
2374 if test "${opsys}" = "mingw32"; then
2377 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2378 LIBS="$LIBGNUTLS_LIBS $LIBS"
2382 AC_SUBST(LIBGNUTLS_LIBS)
2383 AC_SUBST(LIBGNUTLS_CFLAGS)
2388 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2389 dnl a particular library. This doesn't make much sense?
2390 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2391 with_file_notification=no
2394 dnl MS Windows native file monitor is available for mingw32 only.
2395 case $with_file_notification,$opsys in
2396 w32,* | yes,mingw32)
2397 AC_CHECK_HEADER(windows.h)
2398 if test "$ac_cv_header_windows_h" = yes ; then
2399 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2400 NOTIFY_OBJ=w32notify.o
2401 NOTIFY_SUMMARY="yes (w32)"
2405 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2406 dnl has been added in glib 2.24. It has been tested under
2407 dnl GNU/Linux only. We take precedence over inotify, but this makes
2408 dnl only sense when glib has been compiled with inotify support. How
2410 case $with_file_notification,$NOTIFY_OBJ in
2412 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2413 if test "$HAVE_GFILENOTIFY" = "yes"; then
2414 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2415 NOTIFY_OBJ=gfilenotify.o
2416 NOTIFY_SUMMARY="yes -lgio (gfile)"
2420 dnl inotify is only available on GNU/Linux.
2421 case $with_file_notification,$NOTIFY_OBJ in
2423 AC_CHECK_HEADER(sys/inotify.h)
2424 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2425 AC_CHECK_FUNC(inotify_init1)
2426 if test "$ac_cv_func_inotify_init1" = yes; then
2427 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2428 NOTIFY_OBJ=inotify.o
2429 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2434 case $with_file_notification,$NOTIFY_OBJ in
2435 yes,* | no,* | *,?*) ;;
2436 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2439 if test -n "$NOTIFY_OBJ"; then
2440 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2442 AC_SUBST(NOTIFY_OBJ)
2443 AC_SUBST(GFILENOTIFY_CFLAGS)
2444 AC_SUBST(GFILENOTIFY_LIBS)
2446 dnl Do not put whitespace before the #include statements below.
2447 dnl Older compilers (eg sunos4 cc) choke on it.
2450 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2451 if test "$with_xaw3d" != no; then
2452 AC_CACHE_VAL(emacs_cv_xaw3d,
2453 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2454 #include <X11/Intrinsic.h>
2455 #include <X11/Xaw3d/Simple.h>]],
2457 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2458 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2459 emacs_cv_xaw3d=no)])
2463 if test $emacs_cv_xaw3d = yes; then
2464 AC_MSG_CHECKING(for xaw3d)
2465 AC_MSG_RESULT([yes; using Lucid toolkit])
2469 AC_DEFINE(HAVE_XAW3D, 1,
2470 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2472 AC_MSG_CHECKING(for xaw3d)
2474 AC_MSG_CHECKING(for libXaw)
2475 AC_CACHE_VAL(emacs_cv_xaw,
2476 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2477 #include <X11/Intrinsic.h>
2478 #include <X11/Xaw/Simple.h>]],
2482 if test $emacs_cv_xaw = yes; then
2483 AC_MSG_RESULT([yes; using Lucid toolkit])
2486 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2487 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2489 AC_MSG_ERROR([No X toolkit could be found.
2490 If you are sure you want Emacs compiled without an X toolkit, pass
2492 to configure. Otherwise, install the development libraries for the toolkit
2493 that you want to use (e.g. Gtk+) and re-run configure.])
2498 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2501 if test "${USE_X_TOOLKIT}" != "none"; then
2502 AC_MSG_CHECKING(X11 toolkit version)
2503 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2504 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2505 [[#if XtSpecificationRelease < 6
2508 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2509 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2510 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2511 AC_MSG_RESULT(6 or newer)
2512 AC_DEFINE(HAVE_X11XTR6, 1,
2513 [Define to 1 if you have the X11R6 or newer version of Xt.])
2514 LIBXTR6="-lSM -lICE"
2516 ## Use libw.a along with X11R6 Xt.
2517 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2520 AC_MSG_RESULT(before 6)
2523 dnl If using toolkit, check whether libXmu.a exists.
2524 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2526 if test x$HAVE_X11XTR6 = xyes; then
2527 LIBS="-lXt -lSM -lICE $LIBS"
2531 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2532 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2533 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2537 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2538 dnl Why not just test for libxmu in the normal way?
2541 ## These systems don't supply Xmu.
2543 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2551 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2552 if test "${HAVE_X11}" = "yes"; then
2553 if test "${USE_X_TOOLKIT}" != "none"; then
2554 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2559 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2560 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2561 if test -d /usr/include/openmotif; then
2562 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2563 emacs_cv_openmotif=yes
2564 case "$canonical" in
2565 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2566 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2569 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2572 emacs_cv_openmotif=no
2574 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2575 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2576 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2579 Motif version prior to 2.1.
2581 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2582 if test $emacs_cv_motif_version_2_1 = yes; then
2583 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2584 if test x$emacs_cv_openmotif = xyes; then
2585 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2588 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2589 # We put this in CFLAGS temporarily to precede other -I options
2590 # that might be in CFLAGS temporarily.
2591 # We put this in CPPFLAGS where it precedes the other -I options.
2592 OLD_CPPFLAGS=$CPPFLAGS
2594 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2595 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2596 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2598 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2599 if test $emacs_cv_lesstif = yes; then
2600 # Make sure this -I option remains in CPPFLAGS after it is set
2601 # back to REAL_CPPFLAGS.
2602 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2603 # have those other -I options anyway. Ultimately, having this
2604 # directory ultimately in CPPFLAGS will be enough.
2605 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2606 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2609 CPPFLAGS=$OLD_CPPFLAGS
2612 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2613 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2616 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2617 dnl using Motif or Xaw3d is available, and unless
2618 dnl --with-toolkit-scroll-bars=no was specified.
2620 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2621 [Define to 1 if we should use toolkit scroll bars.])dnl
2622 USE_TOOLKIT_SCROLL_BARS=no
2623 if test "${with_toolkit_scroll_bars}" != "no"; then
2624 if test "${USE_X_TOOLKIT}" != "none"; then
2625 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2626 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2628 USE_TOOLKIT_SCROLL_BARS=yes
2629 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2630 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2631 USE_TOOLKIT_SCROLL_BARS=yes
2633 elif test "${HAVE_GTK}" = "yes"; then
2634 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2635 USE_TOOLKIT_SCROLL_BARS=yes
2636 elif test "${HAVE_NS}" = "yes"; then
2637 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2638 USE_TOOLKIT_SCROLL_BARS=yes
2639 elif test "${HAVE_W32}" = "yes"; then
2640 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2641 USE_TOOLKIT_SCROLL_BARS=yes
2645 dnl See if XIM is available.
2646 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2647 #include <X11/Xlib.h>
2648 #include <X11/Xresource.h>]],
2649 [[XIMProc callback;]])],
2651 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2654 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2656 if test "${with_xim}" != "no"; then
2657 AC_DEFINE(USE_XIM, 1,
2658 [Define to 1 if we should use XIM, if it is available.])
2662 if test "${HAVE_XIM}" != "no"; then
2664 if test "$GCC" = yes; then
2665 CFLAGS="$CFLAGS --pedantic-errors"
2667 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2668 #include <X11/Xlib.h>
2669 #include <X11/Xresource.h>]],
2675 XPointer *client_data;
2677 /* If we're not using GCC, it's probably not XFree86, and this is
2678 probably right, but we can't use something like --pedantic-errors. */
2679 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2680 char*, XIMProc, XPointer*);
2682 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2684 [emacs_cv_arg6_star=yes])
2685 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2686 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2687 either XPointer or XPointer*.])dnl
2688 if test "$emacs_cv_arg6_star" = yes; then
2689 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2691 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2696 ### Start of font-backend (under any platform) section.
2697 # (nothing here yet -- this is a placeholder)
2698 ### End of font-backend (under any platform) section.
2700 ### Start of font-backend (under X11) section.
2701 if test "${HAVE_X11}" = "yes"; then
2702 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2704 ## Use -lXft if available, unless `--with-xft=no'.
2706 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2709 if test "x${with_xft}" != "xno"; then
2711 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2712 ## Because xftfont.c uses XRenderQueryExtension, we also
2713 ## need to link to -lXrender.
2715 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2716 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2717 OLD_CPPFLAGS="$CPPFLAGS"
2718 OLD_CFLAGS="$CFLAGS"
2720 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2721 CFLAGS="$CFLAGS $XFT_CFLAGS"
2722 XFT_LIBS="-lXrender $XFT_LIBS"
2723 LIBS="$XFT_LIBS $LIBS"
2724 AC_CHECK_HEADER(X11/Xft/Xft.h,
2725 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2726 [[#include <X11/X.h>]])
2728 if test "${HAVE_XFT}" = "yes"; then
2729 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2731 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2733 CPPFLAGS="$OLD_CPPFLAGS"
2734 CFLAGS="$OLD_CFLAGS"
2736 fi # "${HAVE_XFT}" = "yes"
2737 fi # "$HAVE_XFT" != no
2738 fi # "x${with_xft}" != "xno"
2740 ## We used to allow building with FreeType and without Xft.
2741 ## However, the ftx font backend driver is not in good shape.
2742 if test "$HAVE_XFT" != "yes"; then
2743 dnl For the "Does Emacs use" message at the end.
2747 dnl Strict linkers fail with
2748 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2749 dnl if -lfreetype is not specified.
2750 dnl The following is needed to set FREETYPE_LIBS.
2751 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2754 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2758 if test "${HAVE_FREETYPE}" = "yes"; then
2759 AC_DEFINE(HAVE_FREETYPE, 1,
2760 [Define to 1 if using the freetype and fontconfig libraries.])
2761 if test "${with_libotf}" != "no"; then
2762 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2764 if test "$HAVE_LIBOTF" = "yes"; then
2765 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2766 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2767 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2768 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2769 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2770 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2771 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2775 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2776 dnl Does the new font backend require it, or can it work without it?
2780 if test "${HAVE_LIBOTF}" = yes; then
2781 if test "${with_m17n_flt}" != "no"; then
2782 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2783 if test "$HAVE_M17N_FLT" = "yes"; then
2784 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2795 ### End of font-backend (under X11) section.
2797 AC_SUBST(FREETYPE_CFLAGS)
2798 AC_SUBST(FREETYPE_LIBS)
2799 AC_SUBST(FONTCONFIG_CFLAGS)
2800 AC_SUBST(FONTCONFIG_LIBS)
2801 AC_SUBST(LIBOTF_CFLAGS)
2802 AC_SUBST(LIBOTF_LIBS)
2803 AC_SUBST(M17N_FLT_CFLAGS)
2804 AC_SUBST(M17N_FLT_LIBS)
2806 ### Use -lXpm if available, unless `--with-xpm=no'.
2807 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2810 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2811 if test "${with_xpm}" != "no"; then
2812 SAVE_CPPFLAGS="$CPPFLAGS"
2813 SAVE_LDFLAGS="$LDFLAGS"
2814 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2815 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2816 AC_CHECK_HEADER(X11/xpm.h,
2817 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2818 if test "${HAVE_XPM}" = "yes"; then
2819 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2820 AC_EGREP_CPP(no_return_alloc_pixels,
2821 [#include "X11/xpm.h"
2822 #ifndef XpmReturnAllocPixels
2823 no_return_alloc_pixels
2825 ], HAVE_XPM=no, HAVE_XPM=yes)
2827 if test "${HAVE_XPM}" = "yes"; then
2828 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2832 CPPFLAGS="$SAVE_CPPFLAGS"
2833 LDFLAGS="$SAVE_LDFLAGS"
2838 if test "${HAVE_XPM}" = "yes"; then
2839 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2844 if test "${HAVE_X11}" = "yes"; then
2845 if test "${with_xpm}" != "no"; then
2846 AC_CHECK_HEADER(X11/xpm.h,
2847 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2848 if test "${HAVE_XPM}" = "yes"; then
2849 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2850 AC_EGREP_CPP(no_return_alloc_pixels,
2851 [#include "X11/xpm.h"
2852 #ifndef XpmReturnAllocPixels
2853 no_return_alloc_pixels
2855 ], HAVE_XPM=no, HAVE_XPM=yes)
2857 if test "${HAVE_XPM}" = "yes"; then
2865 if test "${HAVE_XPM}" = "yes"; then
2866 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2871 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2872 ### slightly different requirements wrt image libraries (it doesn't
2873 ### use -lXpm because it loads the xpm shared library dynamically at
2875 if test "${opsys}" = "mingw32"; then
2876 if test "${with_xpm}" != "no"; then
2877 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2881 if test "${HAVE_XPM}" = "yes"; then
2882 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2888 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2889 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2892 if test "${opsys}" = "mingw32"; then
2893 if test "${with_jpeg}" != "no"; then
2894 dnl Checking for jpeglib.h can lose because of a redefinition of
2896 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2898 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2899 if test "${HAVE_JPEG}" = "yes"; then
2900 AC_DEFINE(HAVE_JPEG)
2901 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2902 [#include <jpeglib.h>
2903 version=JPEG_LIB_VERSION
2905 [AC_DEFINE(HAVE_JPEG)],
2906 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2909 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2910 if test "${with_jpeg}" != "no"; then
2911 dnl Checking for jpeglib.h can lose because of a redefinition of
2913 AC_CHECK_HEADER(jerror.h,
2914 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2917 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2918 if test "${HAVE_JPEG}" = "yes"; then
2919 AC_DEFINE(HAVE_JPEG)
2920 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2921 [#include <jpeglib.h>
2922 version=JPEG_LIB_VERSION
2924 [AC_DEFINE(HAVE_JPEG)],
2925 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2928 if test "${HAVE_JPEG}" = "yes"; then
2934 ### Use -lpng if available, unless `--with-png=no'.
2935 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2938 if test "${opsys}" = "mingw32"; then
2939 if test "${with_png}" != "no"; then
2940 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2942 if test "${HAVE_PNG}" = "yes"; then
2943 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2945 AC_CHECK_DECL(png_longjmp,
2947 [AC_DEFINE(PNG_DEPSTRUCT, [],
2948 [Define to empty to suppress deprecation warnings when building
2949 with --enable-gcc-warnings and with libpng versions before 1.5,
2950 which lack png_longjmp.])],
2951 [[#ifdef HAVE_LIBPNG_PNG_H
2952 # include <libpng/png.h>
2958 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2959 if test "${with_png}" != "no"; then
2960 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2961 # in /usr/include/libpng.
2962 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2963 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2964 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2968 if test "${HAVE_PNG}" = "yes"; then
2969 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2970 LIBPNG="-lpng -lz -lm"
2972 AC_CHECK_DECL(png_longjmp,
2974 [AC_DEFINE(PNG_DEPSTRUCT, [],
2975 [Define to empty to suppress deprecation warnings when building
2976 with --enable-gcc-warnings and with libpng versions before 1.5,
2977 which lack png_longjmp.])],
2978 [[#ifdef HAVE_LIBPNG_PNG_H
2979 # include <libpng/png.h>
2990 if test "${with_zlib}" != "no"; then
2992 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
2994 case $ac_cv_search_inflateEnd in
2995 -*) LIBZ=$ac_cv_search_inflateEnd ;;
2998 if test "${HAVE_ZLIB}" = "yes"; then
2999 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3000 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3001 if test "${opsys}" = "mingw32"; then
3008 ### Use -ltiff if available, unless `--with-tiff=no'.
3009 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3012 if test "${opsys}" = "mingw32"; then
3013 if test "${with_tiff}" != "no"; then
3014 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3016 if test "${HAVE_TIFF}" = "yes"; then
3017 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3019 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3020 if test "${with_tiff}" != "no"; then
3021 AC_CHECK_HEADER(tiffio.h,
3023 # At least one tiff package requires the jpeg library.
3024 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3025 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3028 if test "${HAVE_TIFF}" = "yes"; then
3029 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3030 dnl FIXME -lz -lm, as per libpng?
3036 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3037 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3040 if test "${opsys}" = "mingw32"; then
3041 if test "${with_gif}" != "no"; then
3042 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3044 if test "${HAVE_GIF}" = "yes"; then
3045 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3047 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3048 || test "${HAVE_W32}" = "yes"; then
3049 AC_CHECK_HEADER(gif_lib.h,
3050 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3051 # Earlier versions can crash Emacs.
3052 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3054 if test "$HAVE_GIF" = yes; then
3056 elif test "$HAVE_GIF" = maybe; then
3057 # If gif_lib.h but no libgif, try libungif.
3058 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3059 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3062 if test "${HAVE_GIF}" = "yes"; then
3063 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3068 dnl Check for required libraries.
3069 if test "${HAVE_X11}" = "yes"; then
3072 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3073 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3074 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3075 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3076 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3077 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3078 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3079 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3080 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3081 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3083 if test "X${MISSING}" != X; then
3084 AC_MSG_ERROR([The following required libraries were not found:
3086 Maybe some development libraries/packages are missing?
3087 If you don't want to link with them give
3089 as options to configure])
3093 ### Use -lgpm if available, unless `--with-gpm=no'.
3096 if test "${with_gpm}" != "no"; then
3097 AC_CHECK_HEADER(gpm.h,
3098 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3100 if test "${HAVE_GPM}" = "yes"; then
3101 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3107 dnl Check for malloc/malloc.h on darwin
3108 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3111 ### Use NeXTstep API to implement GUI.
3112 if test "${HAVE_NS}" = "yes"; then
3113 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3114 if test "${NS_IMPL_COCOA}" = "yes"; then
3115 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3117 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3118 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3119 # See also .m.o rule in Makefile.in */
3120 # FIXME: are all these flags really needed? Document here why. */
3121 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3122 ## Extra CFLAGS applied to src/*.m files.
3123 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3125 # We also have mouse menus.
3130 if test "${HAVE_W32}" = "yes"; then
3134 ### Use session management (-lSM -lICE) if available
3137 if test "${HAVE_X11}" = "yes"; then
3138 AC_CHECK_HEADER(X11/SM/SMlib.h,
3139 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3141 if test "${HAVE_X_SM}" = "yes"; then
3142 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3146 *) LIBS="$LIBXSM $LIBS" ;;
3152 ### Use XRandr (-lXrandr) if available
3154 if test "${HAVE_X11}" = "yes"; then
3155 XRANDR_REQUIRED=1.2.2
3156 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3157 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3158 if test $HAVE_XRANDR = no; then
3159 # Test old way in case pkg-config doesn't have it (older machines).
3160 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3161 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3162 if test $HAVE_XRANDR = yes; then
3163 XRANDR_LIBS=-lXrandr
3164 AC_SUBST(XRANDR_LIBS)
3167 if test $HAVE_XRANDR = yes; then
3168 SAVE_CFLAGS="$CFLAGS"
3170 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3171 LIBS="$XRANDR_LIBS $LIBS"
3172 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3173 CFLAGS="$SAVE_CFLAGS"
3176 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3180 ### Use Xinerama (-lXinerama) if available
3182 if test "${HAVE_X11}" = "yes"; then
3183 XINERAMA_REQUIRED=1.0.2
3184 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3185 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3187 if test $HAVE_XINERAMA = no; then
3188 # Test old way in case pkg-config doesn't have it (older machines).
3189 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3190 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3191 if test $HAVE_XINERAMA = yes; then
3192 XINERAMA_LIBS=-lXinerama
3193 AC_SUBST(XINERAMA_LIBS)
3196 if test $HAVE_XINERAMA = yes; then
3197 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3202 ### Use libxml (-lxml2) if available
3203 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3205 if test "${with_xml2}" != "no"; then
3206 ### I'm not sure what the version number should be, so I just guessed.
3207 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3208 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3209 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3210 SAVE_CPPFLAGS="$CPPFLAGS"
3211 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3212 AC_CHECK_HEADER(libxml/HTMLparser.h,
3213 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3214 [#include <libxml/HTMLparser.h>])])
3215 CPPFLAGS="$SAVE_CPPFLAGS"
3216 if test "${HAVE_LIBXML2}" = "yes"; then
3217 LIBXML2_LIBS="-lxml2"
3218 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3221 if test "${HAVE_LIBXML2}" = "yes"; then
3222 if test "${opsys}" != "mingw32"; then
3223 LIBS="$LIBXML2_LIBS $LIBS"
3224 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3228 if test "${HAVE_LIBXML2}" = "yes"; then
3229 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3236 AC_SUBST(LIBXML2_LIBS)
3237 AC_SUBST(LIBXML2_CFLAGS)
3239 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3240 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3241 if test "${opsys}" = "mingw32"; then
3242 emacs_cv_netdb_declares_h_errno=yes
3244 AC_CACHE_CHECK(whether netdb declares h_errno,
3245 emacs_cv_netdb_declares_h_errno,
3246 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3247 [[return h_errno;]])],
3248 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3249 if test $emacs_cv_netdb_declares_h_errno = yes; then
3250 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3253 # sqrt and other floating-point functions such as fmod and frexp
3254 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3255 if test "${opsys}" != "mingw32"; then
3256 AC_CHECK_LIB(m, sqrt)
3259 # Check for mail-locking functions in a "mail" library. Probably this should
3260 # have the same check as for liblockfile below.
3261 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3262 if test $have_mail = yes; then
3264 LIBS="$LIBS_MAIL $LIBS"
3265 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3269 dnl Debian, at least:
3270 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3271 if test $have_lockfile = yes; then
3272 LIBS_MAIL=-llockfile
3273 LIBS="$LIBS_MAIL $LIBS"
3274 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3276 # If we have the shared liblockfile, assume we must use it for mail
3277 # locking (e.g. Debian). If we couldn't link against liblockfile
3278 # (no liblockfile.a installed), ensure that we don't need to.
3279 dnl This works for files generally, not just executables.
3280 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3281 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3282 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3283 if test $ac_cv_prog_liblockfile = yes; then
3284 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3285 This probably means that movemail could lose mail.
3286 There may be a `development' package to install containing liblockfile.])
3289 AC_CHECK_HEADERS_ONCE(maillock.h)
3292 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3293 ## interlock access to the mail spool. The alternative is a lock file named
3294 ## /usr/spool/mail/$USER.lock.
3297 aix4-2) mail_lock="lockf" ;;
3299 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3301 ## On GNU/Linux systems, both methods are used by various mail programs.
3302 ## I assume most people are using newer mailers that have heard of flock.
3303 ## Change this if you need to.
3304 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3305 ## configure gets the right answers, and that means *NOT* using flock.
3306 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3307 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3308 ## Debian maintainer hasn't provided a clean fix for Emacs.
3309 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3310 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3311 ## correct logic. -- fx
3312 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3313 ## liblockfile is a Free Software replacement for libmail, used on
3314 ## Debian systems and elsewhere. -rfr.
3317 if test $have_mail = yes || test $have_lockfile = yes; then
3318 test $ac_cv_header_maillock_h = yes && mail_lock=no
3323 mail_lock="none-needed" ;;
3327 case "$mail_lock" in
3328 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3330 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3334 *) BLESSMAIL_TARGET="need-blessmail" ;;
3336 AC_SUBST(BLESSMAIL_TARGET)
3339 AC_CHECK_FUNCS(accept4 gethostname \
3340 getrusage get_current_dir_name \
3342 select getpagesize setlocale \
3343 getrlimit setrlimit shutdown getaddrinfo \
3344 strsignal setitimer \
3345 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3346 gai_strerror getline getdelim sync \
3347 difftime posix_memalign \
3348 getpwent endpwent getgrent endgrent \
3350 cfmakeraw cfsetspeed copysign __executable_start log2)
3352 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3353 ## has a broken `rint' in some library versions including math library
3354 ## version number A.09.05.
3355 ## You can fix the math library by installing patch number PHSS_4630.
3356 ## But we can fix it more reliably for Emacs by just not using rint.
3357 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3360 *) AC_CHECK_FUNCS(random rint) ;;
3363 dnl Cannot use AC_CHECK_FUNCS
3364 AC_CACHE_CHECK([for __builtin_unwind_init],
3365 emacs_cv_func___builtin_unwind_init,
3366 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3367 emacs_cv_func___builtin_unwind_init=yes,
3368 emacs_cv_func___builtin_unwind_init=no)])
3369 if test $emacs_cv_func___builtin_unwind_init = yes; then
3370 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3371 [Define to 1 if you have the `__builtin_unwind_init' function.])
3374 AC_CHECK_HEADERS_ONCE(sys/un.h)
3379 AC_CHECK_FUNCS(grantpt)
3381 # PTY-related GNU extensions.
3382 AC_CHECK_FUNCS(getpt posix_openpt)
3384 # Check this now, so that we will NOT find the above functions in ncurses.
3385 # That is because we have not set up to link ncurses in lib-src.
3386 # It's better to believe a function is not available
3387 # than to expect to find it in ncurses.
3388 # Also we need tputs and friends to be able to build at all.
3389 AC_MSG_CHECKING([for library containing tputs])
3390 # Run a test program that contains a call to tputs, a call that is
3391 # never executed. This tests whether a pre-'main' dynamic linker
3392 # works with the library. It's too much trouble to actually call
3393 # tputs in the test program, due to portability hassles. When
3394 # cross-compiling, assume the test program will run if it links.
3395 AC_DEFUN([tputs_link_source], [
3397 [[extern void tputs (const char *, int, int (*)(int));
3398 int main (int argc, char **argv)
3401 tputs (argv[0], 0, 0);
3405 if test "${opsys}" = "mingw32"; then
3408 # Maybe curses should be tried earlier?
3409 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3410 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3412 if test -z "$tputs_library"; then
3416 LIBS_TERMCAP=-l$tputs_library
3418 LIBS="$LIBS_TERMCAP $LIBS"
3420 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3421 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3423 if test "X$msg" != Xno; then
3428 AC_MSG_RESULT([$msg])
3429 if test "X$msg" = Xno; then
3430 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3431 The following libraries were tried (in order):
3432 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3433 Please try installing whichever of these libraries is most appropriate
3434 for your system, together with its header files.
3435 For example, a libncurses-dev(el) or similar package.])
3438 ## Use termcap instead of terminfo?
3439 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3441 ## FIXME? In the cases below where we unconditionally set
3442 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3443 ## if that was found above to have tputs.
3444 ## Should we use the gnu* logic everywhere?
3446 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3447 ## The ncurses library has been moved out of the System framework in
3448 ## Mac OS X 10.2. So if configure detects it, set the command-line
3449 ## option to use it.
3450 darwin) LIBS_TERMCAP="-lncurses" ;;
3452 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3455 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3456 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3457 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3458 [[#if __FreeBSD_version < 400000
3461 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3463 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3465 if test $emacs_cv_freebsd_terminfo = yes; then
3466 LIBS_TERMCAP="-lncurses"
3469 LIBS_TERMCAP="-ltermcap"
3479 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3481 LIBS_TERMCAP="-ltermcap"
3485 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3487 ## hpux: Make sure we get select from libc rather than from libcurses
3488 ## because libcurses on HPUX 10.10 has a broken version of select.
3489 ## We used to use -lc -lcurses, but this may be cleaner.
3490 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3491 # set that way, now it uses the default). Isn't this a contradiction?
3492 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3496 TERMCAP_OBJ=tparam.o
3497 if test $TERMINFO = yes; then
3498 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3499 TERMCAP_OBJ=terminfo.o
3501 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3502 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3504 AC_SUBST(LIBS_TERMCAP)
3505 AC_SUBST(TERMCAP_OBJ)
3508 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3509 # On Darwin, res_init appears not to be useful: see bug#562 and
3510 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3513 if test $opsys != darwin; then
3515 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3516 #include <arpa/nameser.h>
3517 #include <resolv.h>]],
3518 [[return res_init();]])],
3519 have_res_init=yes, have_res_init=no)
3520 if test "$have_res_init" = no; then
3522 LIBS="$LIBS -lresolv"
3523 AC_MSG_CHECKING(for res_init with -lresolv)
3524 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3525 #include <arpa/nameser.h>
3526 #include <resolv.h>]],
3527 [[return res_init();]])],
3528 have_res_init=yes, have_res_init=no)
3529 AC_MSG_RESULT($have_res_init)
3530 if test "$have_res_init" = yes ; then
3536 if test "$have_res_init" = yes; then
3537 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3541 # Do we need the Hesiod library to provide the support routines?
3542 dnl FIXME? Should we be skipping this on Darwin too?
3544 if test "$with_hesiod" != no ; then
3545 # Don't set $LIBS here -- see comments above. FIXME which comments?
3546 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3547 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3548 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3549 if test "$resolv" = yes ; then
3554 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3555 hesiod=yes, :, $RESOLVLIB)])
3557 if test x"$hesiod" = xyes; then
3563 # Do we need libresolv (due to res_init or Hesiod)?
3564 if test "$resolv" = yes && test $opsys != darwin; then
3571 # These tell us which Kerberos-related libraries to use.
3578 if test "${with_kerberos}" != no; then
3579 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3580 if test $have_com_err = yes; then
3581 COM_ERRLIB=-lcom_err
3582 LIBS="$COM_ERRLIB $LIBS"
3584 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3585 if test $have_crypto = yes; then
3587 LIBS="$CRYPTOLIB $LIBS"
3589 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3590 if test $have_k5crypto = yes; then
3591 CRYPTOLIB=-lk5crypto
3592 LIBS="$CRYPTOLIB $LIBS"
3594 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3595 if test $have_krb5=yes; then
3597 LIBS="$KRB5LIB $LIBS"
3599 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3600 if test "${with_kerberos5}" = no; then
3601 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3602 if test $have_des425 = yes; then
3604 LIBS="$DESLIB $LIBS"
3606 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3607 if test $have_des = yes; then
3609 LIBS="$DESLIB $LIBS"
3612 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3613 if test $have_krb4 = yes; then
3615 LIBS="$KRB4LIB $LIBS"
3617 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3618 if test $have_krb = yes; then
3620 LIBS="$KRB4LIB $LIBS"
3625 if test "${with_kerberos5}" != no; then
3626 AC_CHECK_HEADERS(krb5.h,
3627 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3628 [#include <krb5.h>])])
3630 AC_CHECK_HEADERS(krb.h,,
3631 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3632 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3634 AC_CHECK_HEADERS(com_err.h)
3637 AC_SUBST(COM_ERRLIB)
3643 AC_CHECK_FUNCS_ONCE(tzset)
3644 AC_MSG_CHECKING(whether localtime caches TZ)
3645 AC_CACHE_VAL(emacs_cv_localtime_cache,
3646 [if test x$ac_cv_func_tzset = xyes; then
3647 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3648 char TZ_GMT0[] = "TZ=GMT0";
3649 char TZ_PST8[] = "TZ=PST8";
3652 time_t now = time ((time_t *) 0);
3653 int hour_GMT0, hour_unset;
3654 if (putenv (TZ_GMT0) != 0)
3656 hour_GMT0 = localtime (&now)->tm_hour;
3658 hour_unset = localtime (&now)->tm_hour;
3659 if (putenv (TZ_PST8) != 0)
3661 if (localtime (&now)->tm_hour == hour_GMT0)
3664 if (localtime (&now)->tm_hour != hour_unset)
3667 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3668 [# If we have tzset, assume the worst when cross-compiling.
3669 emacs_cv_localtime_cache=yes])
3671 # If we lack tzset, report that localtime does not cache TZ,
3672 # since we can't invalidate the cache if we don't have tzset.
3673 emacs_cv_localtime_cache=no
3675 AC_MSG_RESULT($emacs_cv_localtime_cache)
3676 if test $emacs_cv_localtime_cache = yes; then
3677 AC_DEFINE(LOCALTIME_CACHE, 1,
3678 [Define to 1 if localtime caches TZ.])
3682 AC_CHECK_FUNC(socket, , ok_so_far=no)
3683 if test $ok_so_far = yes; then
3684 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3686 if test $ok_so_far = yes; then
3687 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3689 if test $ok_so_far = yes; then
3690 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3691 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3692 [Define to 1 if you have inet sockets.])
3695 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3696 dnl This can be removed once we assume Autoconf 2.70.
3698 *-solaris2.4 | *-solaris2.4.*)
3699 dnl Disable the Autoconf-generated vfork test.
3700 : ${ac_cv_func_vfork_works=no};;
3705 AC_CHECK_FUNCS(snprintf)
3707 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3710 AC_MSG_CHECKING([whether GLib is linked in])
3711 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3714 [[g_print ("Hello world");]])],
3717 AC_MSG_RESULT([$links_glib])
3718 if test "${links_glib}" = "yes"; then
3719 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3720 if test "$HAVE_NS" = no;then
3726 dnl Adapted from Haible's version.
3727 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3728 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3729 [[char* cs = nl_langinfo(CODESET);]])],
3730 emacs_cv_langinfo_codeset=yes,
3731 emacs_cv_langinfo_codeset=no)
3733 if test $emacs_cv_langinfo_codeset = yes; then
3734 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3735 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3740 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3741 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3742 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3743 if test "$emacs_cv_c_restrict_arr" = yes; then
3744 AC_DEFINE(__restrict_arr, __restrict,
3745 [Define to compiler's equivalent of C99 restrict keyword in array
3746 declarations. Define as empty for no equivalent.])
3749 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3750 dnl how the tty code is related to POSIX and/or other versions of termios.
3751 dnl The following looks like a useful start.
3753 dnl AC_SYS_POSIX_TERMIOS
3754 dnl if test $ac_cv_sys_posix_termios = yes; then
3755 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3756 dnl and macros for terminal control.])
3757 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3760 dnl Turned on June 1996 supposing nobody will mind it.
3761 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3762 if test "${opsys}" != "mingw32"; then
3763 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3764 in the full name stands for the login id.])
3767 dnl Every platform that uses configure supports this.
3768 dnl There is a create-lockfiles option you can
3769 dnl customize if you do not want the lock files to be written.
3770 dnl So it is not clear that this #define still needs to exist.
3771 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3772 so that Emacs can tell instantly when you try to modify a file that
3773 someone else has modified in his/her Emacs.])
3775 dnl Everybody supports this, except MS.
3776 dnl Seems like the kind of thing we should be testing for, though.
3777 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3778 if test "${opsys}" != "mingw32"; then
3779 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3782 dnl Everybody supports this, except MS-DOS.
3783 dnl Seems like the kind of thing we should be testing for, though.
3784 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3785 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3786 4.2-compatible sockets.])
3788 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3790 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3791 a null file, or a data sink.])
3792 if test "${opsys}" = "mingw32"; then
3793 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3795 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3798 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3799 if test "${opsys}" = "mingw32"; then
3800 AC_DEFINE(SEPCHAR, [';'])
3802 AC_DEFINE(SEPCHAR, [':'])
3805 dnl Everybody supports this, except MS-DOS.
3806 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3808 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3811 AC_DEFINE(DIRECTORY_SEP, ['/'],
3812 [Character that separates directories in a file name.])
3814 if test "${opsys}" = "mingw32"; then
3815 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3816 [Returns true if character is a device separator.])
3818 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3819 [Returns true if character is a directory separator.])
3821 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3822 [Returns true if character is any form of separator.])
3824 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3825 [Returns true if character is a device separator.])
3827 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3828 [Returns true if character is a directory separator.])
3830 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3831 [Returns true if character is any form of separator.])
3834 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3838 dnl Unfortunately without libXmu we cannot support EditRes.
3839 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3840 AC_DEFINE(NO_EDITRES, 1)
3845 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3846 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3847 AC_DEFINE(NO_EDITRES, 1)
3853 irix6-5 | sol2* | unixware )
3854 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3855 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3856 dnl need the constant to dimension an array. So wire in the appropriate
3858 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3862 emacs_broken_SIGIO=no
3865 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3866 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3867 hpux* | irix6-5 | openbsd | sol2* | unixware )
3868 emacs_broken_SIGIO=yes
3872 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3873 dnl the way this system works, libc functions that return malloced
3874 dnl memory use the libc malloc implementation. Calling xfree or
3875 dnl xrealloc on the results of such functions results in a crash.
3877 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3878 dnl but that does not currently work on this system.
3880 dnl It is possible to completely override the malloc implementation on
3881 dnl AIX, but that involves putting the malloc functions in a shared
3882 dnl library and setting the MALLOCTYPE environment variable to point to
3883 dnl that shared library.
3885 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3886 dnl to avoid a crash just use the Emacs implementation for that function.
3888 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3889 dnl of this file, so that we do not check for get_current_dir_name
3890 dnl on AIX. But that might be fragile if something else ends
3891 dnl up testing for get_current_dir_name as a dependency.
3892 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3893 get_current_dir_name should not be used.])
3897 dnl Circumvent a bug in FreeBSD. In the following sequence of
3898 dnl writes/reads on a PTY, read(2) returns bogus data:
3900 dnl write(2) 1022 bytes
3901 dnl write(2) 954 bytes, get EAGAIN
3902 dnl read(2) 1024 bytes in process_read_output
3903 dnl read(2) 11 bytes in process_read_output
3905 dnl That is, read(2) returns more bytes than have ever been written
3906 dnl successfully. The 1033 bytes read are the 1022 bytes written
3907 dnl successfully after processing (for example with CRs added if the
3908 dnl terminal is set up that way which it is here). The same bytes will
3909 dnl be seen again in a later read(2), without the CRs.
3910 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3911 work around an issue when reading from a PTY.])
3917 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3918 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3923 darwin | dragonfly | freebsd | netbsd | openbsd )
3924 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3925 close a pty to make it a controlling terminal (it is already a
3926 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3930 dnl FIXME Surely we can test for this rather than hard-code it.
3932 netbsd | openbsd) sound_device="/dev/audio" ;;
3933 *) sound_device="/dev/dsp" ;;
3937 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3938 [Name of the default sound device.])
3941 dnl Emacs can read input using SIGIO and buffering characters itself,
3942 dnl or using CBREAK mode and making C-g cause SIGINT.
3943 dnl The choice is controlled by the variable interrupt_input.
3945 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3947 dnl Emacs uses the presence of the USABLE_SIGIO macro
3948 dnl to indicate whether or not signal-driven I/O is possible. It uses
3949 dnl INTERRUPT_INPUT to decide whether to use it by default.
3951 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3952 dnl CBREAK mode has two disadvantages
3953 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3954 dnl I hear that in system V this problem does not exist.
3955 dnl 2) Control-G causes output to be discarded.
3956 dnl I do not know whether this can be fixed in system V.
3958 dnl Another method of doing input is planned but not implemented.
3959 dnl It would have Emacs fork off a separate process
3960 dnl to read the input and send it to the true Emacs process
3963 darwin | gnu-linux | gnu-kfreebsd )
3964 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3969 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3970 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3971 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3972 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3973 dnl taking float or double parameters.
3975 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3976 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3977 file defines `NeedWidePrototypes' as `NO'.])
3982 dnl Used in process.c, this must be a loop, even if it only runs once.
3983 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3984 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3985 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3986 dnl trying suffixes 0-16.
3987 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3988 first PTY, if PTYs are supported.])
3989 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3990 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3991 end of a PTY, if non-standard.])
3992 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3993 end of a PTY, if non-standard.])
3997 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3998 dnl You allocate a pty by opening /dev/ptc to get the master side.
3999 dnl To get the name of the slave side, you just ttyname() the master side.
4000 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4001 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4005 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4006 dnl multi-line AC_DEFINEs are hard. :(
4007 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)])
4008 AC_DEFINE(PTY_NAME_SPRINTF, [])
4009 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4012 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4014 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4015 dnl Not used, because PTY_ITERATION is defined.
4016 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4017 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4018 dnl But we don't have to block SIGCHLD because it is blocked in the
4019 dnl implementation of grantpt.
4020 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4021 AC_DEFINE(PTY_NAME_SPRINTF, [])
4022 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4026 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4029 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4031 if test "x$ac_cv_func_grantpt" = xyes; then
4032 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4033 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4034 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4035 dnl to prevent sigchld_handler from intercepting the child's death.
4036 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); }])
4037 dnl if HAVE_POSIX_OPENPT
4038 if test "x$ac_cv_func_posix_openpt" = xyes; then
4039 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4040 AC_DEFINE(PTY_NAME_SPRINTF, [])
4042 elif test "x$ac_cv_func_getpt" = xyes; then
4043 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4044 AC_DEFINE(PTY_NAME_SPRINTF, [])
4046 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4049 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4054 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4055 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4056 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4060 dnl It looks like this cannot be right, because it is not a loop.
4061 dnl However, process.c actually does this:
4067 dnl which presumably makes it OK, since irix == sgi (?).
4068 dnl FIXME it seems like this special treatment is unnecessary?
4069 dnl Why can't irix use a single-trip loop like eg cygwin?
4070 AC_DEFINE(PTY_ITERATION, [])
4071 dnl Not used, because PTY_ITERATION is defined.
4072 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4073 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); }])
4074 dnl No need to get the pty name at all.
4075 AC_DEFINE(PTY_NAME_SPRINTF, [])
4076 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4077 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4081 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4082 dnl from intercepting that death. If any child but grantpt's should die
4083 dnl within, it should be caught after sigrelse(2).
4084 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); }])
4088 dnl Comments are as per sol2*.
4089 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); }])
4096 dnl This change means that we don't loop through allocate_pty too
4097 dnl many times in the (rare) event of a failure.
4098 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4099 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4100 dnl Push various streams modules onto a PTY channel. Used in process.c.
4101 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.])
4106 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4107 "typing" a signal character on the pty.])
4110 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4111 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4112 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4113 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4116 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4117 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4118 gnu-linux | gnu-kfreebsd )
4120 AC_MSG_CHECKING([for signals via characters])
4121 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4122 #include <linux/version.h>
4123 #if LINUX_VERSION_CODE < 0x20400
4124 # error "Linux version too old"
4126 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4128 AC_MSG_RESULT([$emacs_signals_via_chars])
4129 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4134 dnl Used in lisp.h, emacs.c, vm-limit.c
4135 dnl NEWS.18 describes this as "a number which contains
4136 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4137 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4138 stored in a Lisp_Object.])
4139 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4143 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4144 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4147 dnl The data segment on this machine always starts at address 0x40000000.
4148 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4151 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4156 AH_TEMPLATE(TAB3, [Undocumented.])
4159 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4161 gnu | dragonfly | freebsd | netbsd | openbsd )
4162 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4163 AC_DEFINE(TAB3, OXTABS)
4166 gnu-linux | gnu-kfreebsd )
4167 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4171 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4172 [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)],
4173 [Mark a secondary stack, like the register stack on the ia64.]), [])
4177 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4178 run_time_remap; for HPUX.])
4183 dnl This won't be used automatically yet. We also need to know, at least,
4184 dnl that the stack is continuous.
4185 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4186 registers relevant for conservative garbage collection in the jmp_buf.])
4190 dnl Not all the architectures are tested, but there are Debian packages
4191 dnl for SCM and/or Guile on them, so the technique must work. See also
4192 dnl comments in alloc.c concerning setjmp and gcc.
4193 dnl Fixme: it's probably safe to just use the GCC conditional below.
4194 gnu-linux | gnu-kfreebsd )
4195 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4196 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4197 || defined __alpha__ || defined __mips__ || defined __s390__ \
4198 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4199 || defined __ia64__ || defined __sh__
4202 # error "setjmp not known to work on this arch"
4204 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4209 if test x$GCC = xyes; then
4210 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4211 AC_DEFINE(GC_SETJMP_WORKS, 1)
4214 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4215 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4216 AC_DEFINE(GC_SETJMP_WORKS, 1)
4221 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4222 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4225 [[#include <setjmp.h>
4227 # define _longjmp longjmp
4232 _longjmp (j, 1);]])],
4233 [emacs_cv_func__setjmp=yes],
4234 [emacs_cv_func__setjmp=no])])
4235 if test $emacs_cv_func__setjmp = yes; then
4236 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4238 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4241 [[#include <setjmp.h>
4244 if (! sigsetjmp (j, 1))
4245 siglongjmp (j, 1);]])],
4246 [emacs_cv_func_sigsetjmp=yes],
4247 [emacs_cv_func_sigsetjmp=no])])
4248 if test $emacs_cv_func_sigsetjmp = yes; then
4249 AC_DEFINE([HAVE_SIGSETJMP], 1,
4250 [Define to 1 if sigsetjmp and siglongjmp work.
4251 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4257 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4258 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4259 dnl and this is all we need.
4260 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4267 dnl Used in xfaces.c.
4268 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4269 some systems, where it requires time.h.])
4274 dnl Define symbols to identify the version of Unix this is.
4275 dnl Define all the symbols that apply correctly.
4276 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4277 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4278 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4279 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4284 dnl This symbol should be defined on AIX Version 3 ???????
4285 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4287 # error "_AIX not defined"
4289 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4293 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4297 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4298 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4299 dnl distinguish OS X from pure Darwin.
4300 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4303 gnu-linux | gnu-kfreebsd )
4305 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4310 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4315 AC_DEFINE(USG5_4, [])
4316 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4320 AC_DEFINE(DOS_NT, [])
4321 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4322 if test "x$ac_enable_checking" != "x" ; then
4323 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4329 AC_DEFINE(USG5_4, [])
4330 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4335 AC_DEFINE(USG5_4, [])
4339 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4342 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4343 emacs_cv_usable_FIONREAD=no
4347 emacs_cv_usable_FIONREAD=yes
4352 [AC_LANG_PROGRAM([[#include <sys/types.h>
4353 #include <sys/ioctl.h>
4355 # include <sys/filio.h>
4358 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4359 [emacs_cv_usable_FIONREAD=yes],
4360 [emacs_cv_usable_FIONREAD=no])
4363 if test $emacs_cv_usable_FIONREAD = yes; then
4364 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4366 if test $emacs_broken_SIGIO = no; then
4367 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4369 [AC_LANG_PROGRAM([[#include <fcntl.h>
4372 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4373 [emacs_cv_usable_SIGIO=yes],
4374 [emacs_cv_usable_SIGIO=no])],
4375 [emacs_cv_usable_SIGIO=yes],
4376 [emacs_cv_usable_SIGIO=no])
4377 if test $emacs_cv_usable_SIGIO = yes; then
4378 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4385 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4386 dnl and on Cygwin prior to version 1.7.24 that becomes the
4387 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4388 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4389 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4390 dnl needed starting with cygwin-1.7.24, and it is no longer
4391 dnl effective starting with glib-2.36. */
4393 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4394 G_SLICE environment variable to "always-malloc" at startup.])
4398 dnl It works to open the pty's tty in the parent (Emacs), then
4399 dnl close and reopen it in the child.
4400 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4401 works to open a pty's tty in the parent process, then close and
4402 reopen it in the child.])
4406 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4407 use VSUSP instead of VSWTCH.])
4411 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4416 # Set up the CFLAGS for real compilation, so we can substitute it.
4417 CFLAGS="$REAL_CFLAGS"
4418 CPPFLAGS="$REAL_CPPFLAGS"
4420 ## Hack to detect a buggy GCC version.
4421 if test "x$GCC" = xyes \
4422 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4423 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4424 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4425 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4428 version=$PACKAGE_VERSION
4430 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4431 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4432 [Short copyright string for this version of Emacs.])
4435 ### Specify what sort of things we'll be editing into Makefile and config.h.
4436 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4438 AC_SUBST(configuration)
4443 AC_SUBST(exec_prefix)
4446 AC_SUBST(sharedstatedir)
4447 AC_SUBST(libexecdir)
4452 AC_SUBST(standardlisppath)
4453 AC_SUBST(locallisppath)
4455 AC_SUBST(x_default_search_path)
4457 AC_SUBST(archlibdir)
4462 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4463 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4464 ## end of LIBX_BASE, but nothing ever set it.
4465 AC_SUBST(LD_SWITCH_X_SITE)
4466 AC_SUBST(C_SWITCH_X_SITE)
4467 AC_SUBST(GNUSTEP_CFLAGS)
4469 ## Used in lwlib/Makefile.in.
4470 AC_SUBST(X_TOOLKIT_TYPE)
4472 AC_SUBST(ns_appbindir)
4473 AC_SUBST(ns_appresdir)
4475 AC_SUBST(GNU_OBJC_CFLAGS)
4476 AC_SUBST(OTHER_FILES)
4478 if test -n "${term_header}"; then
4479 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4480 [Define to the header for the built-in window system.])
4483 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4484 [Define to the canonical Emacs configuration name.])
4485 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4486 [Define to the options passed to configure.])
4487 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4488 define this to include extra configuration information.])
4492 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4499 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4500 AC_DEFINE(HAVE_X_WINDOWS, 1,
4501 [Define to 1 if you want to use the X window system.])
4503 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4505 if test "$HAVE_XFT" = "yes"; then
4506 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4507 elif test "$HAVE_FREETYPE" = "yes"; then
4508 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4518 if test "${USE_X_TOOLKIT}" != "none" ; then
4520 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4521 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4522 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4523 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4524 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4528 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4529 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4533 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4534 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4535 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4539 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4540 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4543 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4546 AC_SUBST(WIDGET_OBJ)
4549 case "$USE_X_TOOLKIT" in
4550 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4551 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4552 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4554 AC_SUBST(TOOLKIT_LIBW)
4556 if test "${opsys}" != "mingw32"; then
4557 if test "$USE_X_TOOLKIT" = "none"; then
4558 LIBXT_OTHER="\$(LIBXSM)"
4559 OLDXMENU_TARGET="really-oldXMenu"
4561 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4562 OLDXMENU_TARGET="really-lwlib"
4565 AC_SUBST(LIBXT_OTHER)
4567 ## The X Menu stuff is present in the X10 distribution, but missing
4568 ## from X11. If we have X10, just use the installed library;
4569 ## otherwise, use our own copy.
4570 if test "${HAVE_X11}" = "yes" ; then
4571 AC_DEFINE(HAVE_X11, 1,
4572 [Define to 1 if you want to use version 11 of X windows.
4573 Otherwise, Emacs expects to use version 10.])
4575 if test "$USE_X_TOOLKIT" = "none"; then
4576 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4578 OLDXMENU="\${lwlibdir}/liblw.a"
4580 LIBXMENU="\$(OLDXMENU)"
4581 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4582 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4584 ## For a syntactically valid Makefile; not actually used for anything.
4585 ## See comments in src/Makefile.in.
4587 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4588 if test "${HAVE_X_WINDOWS}" = "yes"; then
4597 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4604 AC_SUBST(OLDXMENU_TARGET)
4607 AC_SUBST(LIBX_OTHER)
4608 AC_SUBST(OLDXMENU_DEPS)
4610 if test "${HAVE_MENUS}" = "yes" ; then
4611 AC_DEFINE(HAVE_MENUS, 1,
4612 [Define to 1 if you have mouse menus.
4613 (This is automatic if you use X, but the option to specify it remains.)
4614 It is also defined with other window systems that support xmenu.c.])
4617 if test "${GNU_MALLOC}" = "yes" ; then
4618 AC_DEFINE(GNU_MALLOC, 1,
4619 [Define to 1 if you want to use the GNU memory allocator.])
4623 if test "${REL_ALLOC}" = "yes" ; then
4624 AC_DEFINE(REL_ALLOC, 1,
4625 [Define REL_ALLOC if you want to use the relocating allocator for
4628 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4630 AC_SUBST(RALLOC_OBJ)
4632 if test "$opsys" = "cygwin"; then
4633 CYGWIN_OBJ="sheap.o cygw32.o"
4634 ## Cygwin differs because of its unexec().
4636 POST_ALLOC_OBJ=lastfile.o
4637 elif test "$opsys" = "mingw32"; then
4640 POST_ALLOC_OBJ=lastfile.o
4643 PRE_ALLOC_OBJ=lastfile.o
4646 AC_SUBST(CYGWIN_OBJ)
4647 AC_SUBST(PRE_ALLOC_OBJ)
4648 AC_SUBST(POST_ALLOC_OBJ)
4650 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4651 # it temporarily reverts them to their pre-pkg-config values,
4652 # because gnulib needs to work with both src (which uses the
4653 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4654 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4655 # and it therefore needs to run in an environment where LIBS does not
4656 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4657 # for some package unrelated to lib-src.
4660 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4661 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4662 gl_ASSERT_NO_GNULIB_POSIXCHECK
4663 gl_ASSERT_NO_GNULIB_TESTS
4668 if test "${opsys}" = "mingw32"; then
4669 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4670 # Remove unneeded switches from the value of CC that goes to Makefiles
4671 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4675 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4678 ## The -headerpad option tells ld (see man page) to leave room at the
4679 ## end of the header for adding load commands. Needed for dumping.
4680 ## 0x690 is the total size of 30 segment load commands (at 56
4681 ## each); under Cocoa 31 commands are required.
4682 if test "$HAVE_NS" = "yes"; then
4683 libs_nsgui="-framework AppKit"
4684 if test "$NS_IMPL_COCOA" = "yes"; then
4685 libs_nsgui="$libs_nsgui -framework IOKit"
4692 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4694 ## This is here because src/Makefile.in did some extra fiddling around
4695 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4696 ## LD_SWITCH_SYSTEM_TEMACS instead,
4697 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4698 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4701 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4702 ## find X at run-time.
4703 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4704 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4705 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4706 ## had different values in configure (in ac_link) and src/Makefile.in.
4707 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4708 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4711 ## MinGW64 does not prepend an underscore to symbols, so we must
4712 ## pass a different -entry switch to linker. FIXME: It is better
4713 ## to make the entry points the same by changing unexw32.c.
4714 case "$canonical" in
4715 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4716 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4720 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4722 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4725 if test x$ac_enable_profiling != x ; then
4727 *freebsd | gnu-linux) ;;
4728 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4732 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4734 ## MinGW-specific post-link processing of temacs.
4735 TEMACS_POST_LINK=":"
4738 if test "${opsys}" = "mingw32"; then
4739 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4740 ADDSECTION="../nt/addsection\$(EXEEXT)"
4741 ## Preload heap size of temacs.exe in MB.
4742 case "$canonical" in
4743 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4744 *) EMACS_HEAPSIZE=27 ;;
4748 AC_SUBST(ADDSECTION)
4749 AC_SUBST(TEMACS_POST_LINK)
4750 AC_SUBST(EMACS_HEAPSIZE)
4752 ## Common for all window systems
4753 if test "$window_system" != "none"; then
4754 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4755 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4758 AC_SUBST(WINDOW_SYSTEM_OBJ)
4760 AH_TOP([/* GNU Emacs site configuration template file.
4762 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4763 Free Software Foundation, Inc.
4765 This file is part of GNU Emacs.
4767 GNU Emacs is free software: you can redistribute it and/or modify
4768 it under the terms of the GNU General Public License as published by
4769 the Free Software Foundation, either version 3 of the License, or
4770 (at your option) any later version.
4772 GNU Emacs is distributed in the hope that it will be useful,
4773 but WITHOUT ANY WARRANTY; without even the implied warranty of
4774 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4775 GNU General Public License for more details.
4777 You should have received a copy of the GNU General Public License
4778 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4781 /* No code in Emacs #includes config.h twice, but some bits of code
4782 intended to work with other packages as well (like gmalloc.c)
4783 think they can include it as many times as they like. */
4784 #ifndef EMACS_CONFIG_H
4785 #define EMACS_CONFIG_H
4788 AH_BOTTOM([#include <conf_post.h>
4790 #endif /* EMACS_CONFIG_H */
4799 #### Report on what we decided to do.
4800 #### Report GTK as a toolkit, even if it doesn't use Xt.
4801 #### It makes printing result more understandable as using GTK sets
4802 #### toolkit_scroll_bars to yes by default.
4803 if test "${HAVE_GTK}" = "yes"; then
4804 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4807 if test $USE_ACL -ne 0; then
4808 acl_summary="yes $LIB_ACL"
4814 Configured for \`${canonical}'.
4816 Where should the build process find the source code? ${srcdir}
4817 What compiler should emacs be built with? ${CC} ${CFLAGS}
4818 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4819 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4820 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4821 What window system should Emacs use? ${window_system}
4822 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4824 if test -n "${x_includes}"; then
4825 echo " Where do we find X Windows header files? ${x_includes}"
4827 echo " Where do we find X Windows header files? Standard dirs"
4829 if test -n "${x_libraries}"; then
4830 echo " Where do we find X Windows libraries? ${x_libraries}"
4832 echo " Where do we find X Windows libraries? Standard dirs"
4835 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4836 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4837 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4838 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4839 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4840 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4841 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4842 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4844 echo " Does Emacs support sound? ${HAVE_SOUND}"
4846 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4847 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4848 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4849 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4850 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4851 echo " Does Emacs use access control lists? ${acl_summary}"
4852 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4853 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4854 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4856 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4857 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4858 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4859 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4860 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4862 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4865 if test -n "${EMACSDATA}"; then
4866 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4868 if test -n "${EMACSDOC}"; then
4869 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4874 if test "$HAVE_NS" = "yes"; then
4876 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4877 The installed application will go to nextstep/Emacs.app and can be
4878 run or moved from there."
4879 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4880 echo "The application will be fully self-contained."
4882 echo "The lisp resources for the application will be installed under ${prefix}.
4883 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4884 to run if these resources are not installed."
4889 if test "${opsys}" = "cygwin"; then
4891 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4897 # Remove any trailing slashes in these variables.
4898 [test "${prefix}" != NONE &&
4899 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4900 test "${exec_prefix}" != NONE &&
4901 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4903 if test "$HAVE_NS" = "yes"; then
4904 if test "$NS_IMPL_GNUSTEP" = yes; then
4905 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4906 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4907 ns_check_file=Resources/Info-gnustep.plist
4909 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4910 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4911 ns_check_file=Contents/Info.plist
4913 AC_SUBST(ns_check_file)
4916 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4917 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4918 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4919 dnl (else you get "no `Makefile.am' found for any configure output").
4920 dnl This will work, but you get a config.status that is not quite right
4921 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4922 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4923 dnl it seems better to just live with the duplication.
4924 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4926 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4927 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4928 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4929 leim/Makefile nextstep/Makefile nt/Makefile])
4931 dnl test/ is not present in release tarfiles.
4932 opt_makefile=test/automated/Makefile
4934 if test -f "$srcdir/$opt_makefile.in"; then
4935 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4936 dnl Again, it's best not to use a variable. Though you can add
4937 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4938 AC_CONFIG_FILES([test/automated/Makefile])
4942 dnl admin/ may or may not be present.
4943 opt_makefile=admin/unidata/Makefile
4945 if test -f "$srcdir/$opt_makefile.in"; then
4946 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4947 AC_CONFIG_FILES([admin/unidata/Makefile])
4951 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4953 AC_SUBST(SUBDIR_MAKEFILES_IN)
4955 dnl You might wonder (I did) why epaths.h is generated by running make,
4956 dnl rather than just letting configure generate it from epaths.in.
4957 dnl One reason is that the various paths are not fully expanded (see above);
4958 dnl eg gamedir=${prefix}/var/games/emacs.
4959 dnl Secondly, the GNU Coding standards require that one should be able
4960 dnl to run `make prefix=/some/where/else' and override the values set
4961 dnl by configure. This also explains the `move-if-change' test and
4962 dnl the use of force in the `epaths-force' rule in Makefile.in.
4963 AC_CONFIG_COMMANDS([src/epaths.h], [
4964 if test "${opsys}" = "mingw32"; then
4965 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4967 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4969 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4971 AC_CONFIG_COMMANDS([src/.gdbinit], [
4972 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4973 echo "source $srcdir/src/.gdbinit" > src/.gdbinit