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=$with_features])
259 OPTION_DEFAULT_OFF([xwidgets],[enable use of some gtk widgets it Emacs buffers])
261 ## For the times when you want to build Emacs but don't have
262 ## a suitable makeinfo, and can live without the manuals.
263 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
264 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
266 ## Makefile.in needs the cache file name.
269 ## This is an option because I do not know if all info/man support
270 ## compressed files, nor how to test if they do so.
271 OPTION_DEFAULT_ON([compress-install],
272 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
273 make GZIP_PROG= install])
275 AC_ARG_WITH([pkg-config-prog],dnl
276 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
277 [file name of pkg-config for finding GTK and librsvg])])
278 if test "X${with_pkg_config_prog}" != X; then
279 if test "${with_pkg_config_prog}" != yes; then
280 PKG_CONFIG="${with_pkg_config_prog}"
284 AC_ARG_WITH(gameuser,dnl
285 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
286 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
287 && gameuser="${with_gameuser}"
288 test "X$gameuser" = X && gameuser=games
290 AC_ARG_WITH([gnustep-conf],dnl
291 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
292 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
293 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
294 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
295 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
296 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
298 AC_ARG_ENABLE(ns-self-contained,
299 [AS_HELP_STRING([--disable-ns-self-contained],
300 [disable self contained build under NeXTstep])],
301 EN_NS_SELF_CONTAINED=$enableval,
302 EN_NS_SELF_CONTAINED=yes)
304 AC_ARG_ENABLE(locallisppath,
305 [AS_HELP_STRING([--enable-locallisppath=PATH],
306 [directories Emacs should search for lisp files specific
308 if test "${enableval}" = "no"; then
310 elif test "${enableval}" != "yes"; then
311 locallisppath=${enableval}
314 AC_ARG_ENABLE(checking,
315 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
316 [enable expensive run-time checks. With LIST,
317 enable only specific categories of checks.
318 Categories are: all,yes,no.
319 Flags are: stringbytes, stringoverrun, stringfreelist,
320 xmallocoverrun, conslist, glyphs])],
321 [ac_checking_flags="${enableval}"],[])
322 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
323 for check in $ac_checking_flags
326 # these set all the flags to specific states
327 yes) ac_enable_checking=1 ;;
328 no) ac_enable_checking= ;
329 ac_gc_check_stringbytes= ;
330 ac_gc_check_string_overrun= ;
331 ac_gc_check_string_free_list= ;
332 ac_xmalloc_overrun= ;
333 ac_gc_check_cons_list= ;
335 all) ac_enable_checking=1 ;
336 ac_gc_check_stringbytes=1 ;
337 ac_gc_check_string_overrun=1 ;
338 ac_gc_check_string_free_list=1 ;
339 ac_xmalloc_overrun=1 ;
340 ac_gc_check_cons_list=1 ;
342 # these enable particular checks
343 stringbytes) ac_gc_check_stringbytes=1 ;;
344 stringoverrun) ac_gc_check_string_overrun=1 ;;
345 stringfreelist) ac_gc_check_string_free_list=1 ;;
346 xmallocoverrun) ac_xmalloc_overrun=1 ;;
347 conslist) ac_gc_check_cons_list=1 ;;
348 glyphs) ac_glyphs_debug=1 ;;
349 *) AC_MSG_ERROR(unknown check category $check) ;;
354 if test x$ac_enable_checking != x ; then
355 AC_DEFINE(ENABLE_CHECKING, 1,
356 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
358 if test x$ac_gc_check_stringbytes != x ; then
359 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
360 [Define this temporarily to hunt a bug. If defined, the size of
361 strings is redundantly recorded in sdata structures so that it can
362 be compared to the sizes recorded in Lisp strings.])
364 if test x$ac_gc_check_string_overrun != x ; then
365 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
366 [Define this to check for short string overrun.])
368 if test x$ac_gc_check_string_free_list != x ; then
369 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
370 [Define this to check the string free list.])
372 if test x$ac_xmalloc_overrun != x ; then
373 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
374 [Define this to check for malloc buffer overrun.])
376 if test x$ac_gc_check_cons_list != x ; then
377 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
378 [Define this to check for errors in cons list.])
380 if test x$ac_glyphs_debug != x ; then
381 AC_DEFINE(GLYPH_DEBUG, 1,
382 [Define this to enable glyphs debugging code.])
385 AC_ARG_ENABLE(check-lisp-object-type,
386 [AS_HELP_STRING([--enable-check-lisp-object-type],
387 [enable compile time checks for the Lisp_Object data type.
388 This is useful for development for catching certain types of bugs.])],
389 if test "${enableval}" != "no"; then
390 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
391 [Define this to enable compile time checks for the Lisp_Object data type.])
395 dnl The name of this option is unfortunate. It predates, and has no
396 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
397 dnl Actually, it stops it working.
398 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
399 AC_ARG_ENABLE(profiling,
400 [AS_HELP_STRING([--enable-profiling],
401 [build emacs with low-level, gprof profiling support.
402 Mainly useful for debugging Emacs itself. May not work on
403 all platforms. Stops profiler.el working.])],
404 [ac_enable_profiling="${enableval}"],[])
405 if test x$ac_enable_profiling != x ; then
406 PROFILING_CFLAGS="-DPROFILING=1 -pg"
410 AC_SUBST(PROFILING_CFLAGS)
412 AC_ARG_ENABLE(autodepend,
413 [AS_HELP_STRING([--enable-autodepend],
414 [automatically generate dependencies to .h-files.
415 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
417 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
419 AC_ARG_ENABLE(gtk-deprecation-warnings,
420 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
421 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
422 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
424 #### Make srcdir absolute, if it isn't already. It's important to
425 #### avoid running the file name through pwd unnecessarily, since pwd can
426 #### give you automounter prefixes, which can go away. We do all this
427 #### so Emacs can find its files when run uninstalled.
428 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
431 [[\\/]]* | ?:[[\\/]]*) ;;
433 ## We may be able to use the $PWD environment variable to make this
434 ## absolute. But sometimes PWD is inaccurate.
435 ## Note: we used to use $PWD at the end instead of `pwd`,
436 ## but that tested only for a well-formed and valid PWD,
437 ## it did not object when PWD was well-formed and valid but just wrong.
438 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
442 srcdir=`(cd "$srcdir"; pwd)`
445 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
448 ### Canonicalize the configuration name.
452 configuration=${host_alias-${build_alias-$host}}
454 dnl This used to use changequote, but, apart from `changequote is evil'
455 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
456 dnl the great gob of text. Thus it's not processed for possible expansion.
457 dnl Just make sure the brackets remain balanced.
459 dnl Since Emacs can't find matching pairs of quotes, boundaries are
460 dnl indicated by comments.
464 ### If you add support for a new configuration, add code to this
465 ### switch statement to recognize your configuration name and select
466 ### the appropriate operating system file.
468 ### You would hope that you could choose an s/*.h
469 ### file based on the operating system portion. However, it turns out
470 ### that each s/*.h file is pretty manufacturer-specific.
471 ### So we basically have to have a special case for each
472 ### configuration name.
474 ### As far as handling version numbers on operating systems is
475 ### concerned, make sure things will fail in a fixable way. If
476 ### /etc/MACHINES doesn't say anything about version numbers, be
477 ### prepared to handle anything reasonably. If version numbers
478 ### matter, be sure /etc/MACHINES says something about it.
481 case "${canonical}" in
483 ## GNU/Linux and similar ports
498 ## FreeBSD kernel + glibc based userland
513 ## Apple Darwin / Mac OS X
515 case "${canonical}" in
522 ## Use fink packages if available.
523 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
524 ## if test -d /sw/include && test -d /sw/lib; then
525 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
526 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
535 ## HP 9000 series 700 and 800, running HP/UX
539 hppa*-hp-hpux1[1-9]* )
541 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
545 rs6000-ibm-aix4.[23]* )
548 powerpc-ibm-aix4.[23]* )
551 rs6000-ibm-aix[56]* )
554 powerpc-ibm-aix[56]* )
558 ## Silicon Graphics machines
562 # Without defining _LANGUAGE_C, things get masked out in the headers
563 # so that, for instance, grepping for `free' in stdlib.h fails and
564 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
565 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
570 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
571 | x86_64-*-solaris2* | x86_64-*-sunos5*)
572 case "${canonical}" in
574 amd64-*-*|x86_64-*-*) ;;
578 case "${canonical}" in
579 *-sunos5.6* | *-solaris2.6* )
583 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
585 emacs_check_sunpro_c=yes
587 *-sunos5* | *-solaris* )
589 emacs_check_sunpro_c=yes
592 ## Watch out for a compiler that we know will not work.
593 case "${canonical}" in
594 *-solaris* | *-sunos5* )
595 if [ "x$CC" = x/usr/ucb/cc ]; then
596 ## /usr/ucb/cc doesn't work;
597 ## we should find some other compiler that does work.
605 ## Intel 386 machines where we don't care about the manufacturer.
607 case "${canonical}" in
608 *-darwin* ) opsys=darwin ;;
611 # MinGW overrides and adds some system headers in nt/inc.
612 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
614 *-sysv4.2uw* ) opsys=unixware ;;
615 *-sysv5uw* ) opsys=unixware ;;
616 *-sysv5OpenUNIX* ) opsys=unixware ;;
617 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
626 ### If the code above didn't choose an operating system, just choose
627 ### an operating system based on the configuration name. You really
628 ### only want to use this when you have no idea what the right
629 ### operating system is; if you know what operating systems a machine
630 ### runs, it's cleaner to make it explicit in the case statement
632 if test x"${opsys}" = x; then
633 case "${canonical}" in
634 *-gnu* ) opsys=gnu ;;
644 if test $unported = yes; then
645 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
646 Check `etc/MACHINES' for recognized configuration names.])
650 #### Choose a compiler.
652 dnl Sets GCC=yes if using gcc.
656 if test x$GCC = xyes; then
657 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
659 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
662 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
663 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
664 dnl that clash with MinGW.
665 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
667 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
668 # as we don't use them.
669 AC_DEFUN([gl_FCNTL_O_FLAGS])
670 # Avoid gnulib's threadlib module, as we do threads our own way.
671 AC_DEFUN([gl_THREADLIB])
673 # Initialize gnulib right after choosing the compiler.
674 dnl Amongst other things, this sets AR and ARFLAGS.
677 if test "$ac_test_CFLAGS" != set; then
678 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
679 # if -g3 works and the user does not specify CFLAGS.
680 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
683 emacs_g3_CFLAGS='-g3';;
685 emacs_g3_CFLAGS='-g3 -O2';;
689 if test -n "$emacs_g3_CFLAGS"; then
690 emacs_save_CFLAGS=$CFLAGS
691 CFLAGS=$emacs_g3_CFLAGS
692 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
693 [emacs_cv_prog_cc_g3],
694 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
695 [emacs_cv_prog_cc_g3=yes],
696 [emacs_cv_prog_cc_g3=no])])
697 if test $emacs_cv_prog_cc_g3 != yes; then
698 CFLAGS=$emacs_save_CFLAGS
700 if test $opsys = mingw32; then
701 CFLAGS="$CFLAGS -gdwarf-2"
708 # No optimization flag was inferred for this non-GCC compiler.
709 # Try -O. This is needed for xlc on AIX; see Bug#14258.
710 emacs_save_CFLAGS=$CFLAGS
711 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
713 AC_CACHE_CHECK([whether $CC accepts -O],
714 [emacs_cv_prog_cc_o],
715 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
716 [emacs_cv_prog_cc_o=yes],
717 [emacs_cv_prog_cc_o=no])])
718 if test $emacs_cv_prog_cc_o != yes; then
719 CFLAGS=$emacs_save_CFLAGS
724 AC_ARG_ENABLE([gcc-warnings],
725 [AS_HELP_STRING([--enable-gcc-warnings],
726 [turn on lots of GCC warnings/errors. This is intended for
727 developers, and may generate false alarms when used
728 with older or non-GNU development tools.])],
731 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
733 gl_gcc_warnings=$enableval],
737 AC_ARG_ENABLE(link-time-optimization,
738 [AS_HELP_STRING([--enable-link-time-optimization],
739 [build emacs with link-time optimization.
740 This is supported only for GCC since 4.5.0.])],
741 if test "${enableval}" != "no"; then
742 AC_MSG_CHECKING([whether link-time optimization is supported])
744 if test x$GCC = xyes; then
745 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
746 if test x$CPUS != x; then
752 CFLAGS="$CFLAGS $LTO"
753 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
754 [ac_lto_supported=yes], [ac_lto_supported=no])
757 AC_MSG_RESULT([$ac_lto_supported])
758 if test "$ac_lto_supported" = "yes"; then
759 CFLAGS="$CFLAGS $LTO"
763 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
764 # ------------------------------------------------
765 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
766 # Otherwise, run RUN-IF-NOT-FOUND.
767 AC_DEFUN([gl_GCC_VERSION_IFELSE],
771 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
774 # error "your version of gcc is older than $1.$2"
781 # When compiling with GCC, prefer -isystem to -I when including system
782 # include files, to avoid generating useless diagnostics for the files.
783 if test "$gl_gcc_warnings" != yes; then
788 # This, $nw, is the list of warnings we disable.
791 case $with_x_toolkit in
792 lucid | athena | motif)
793 # Old toolkits mishandle 'const'.
794 nw="$nw -Wwrite-strings"
797 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
800 AC_SUBST([WERROR_CFLAGS])
802 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
803 nw="$nw -Woverlength-strings" # Not a problem these days
804 nw="$nw -Wlogical-op" # any use of fwrite provokes this
805 nw="$nw -Wformat-nonliteral" # we do this a lot
806 nw="$nw -Wvla" # warnings in gettext.h
807 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
808 nw="$nw -Wswitch-default" # Too many warnings for now
809 nw="$nw -Winline" # OK to ignore 'inline'
810 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
811 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
812 # signed overflow has undefined behavior
813 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
814 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
815 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
817 # Emacs doesn't care about shadowing; see
818 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
821 # Emacs's use of alloca inhibits protecting the stack.
822 nw="$nw -Wstack-protector"
824 # The following line should be removable at some point.
825 nw="$nw -Wsuggest-attribute=pure"
827 # This part is merely for shortening the command line,
828 # since -Wno-FOO needs to be added below regardless.
829 nw="$nw -Wmissing-field-initializers"
831 nw="$nw -Wtype-limits"
832 nw="$nw -Wunused-parameter"
834 # clang is unduly picky about some things.
835 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
842 [emacs_cv_clang=yes],
843 [emacs_cv_clang=no])])
844 if test $emacs_cv_clang = yes; then
845 nw="$nw -Wcast-align"
848 gl_MANYWARN_ALL_GCC([ws])
849 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
853 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
854 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
855 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
856 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
857 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
858 gl_WARN_ADD([-Wno-format-nonliteral])
860 # In spite of excluding -Wlogical-op above, it is enabled, as of
861 # gcc 4.5.0 20090517.
862 gl_WARN_ADD([-Wno-logical-op])
864 # More things that clang is unduly picky about.
865 if test $emacs_cv_clang = yes; then
866 gl_WARN_ADD([-Wno-format-extra-args])
867 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
868 gl_WARN_ADD([-Wno-unused-command-line-argument])
869 gl_WARN_ADD([-Wno-unused-value])
872 gl_WARN_ADD([-fdiagnostics-show-option])
873 gl_WARN_ADD([-funit-at-a-time])
875 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
876 AH_VERBATIM([FORTIFY_SOURCE],
877 [/* Enable compile-time and run-time bounds-checking, and some warnings,
878 without upsetting glibc 2.15+. */
879 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
880 # define _FORTIFY_SOURCE 2
883 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
885 # We use a slightly smaller set of warning options for lib/.
886 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
888 nw="$nw -Wunused-macros"
890 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
891 AC_SUBST([GNULIB_WARN_CFLAGS])
896 dnl Some other nice autoconf tests.
897 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
900 dnl if test "x$RANLIB" = x; then
905 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
906 dnl can be made to directories. This is not relevant for our usage, and
907 dnl excludes some cases that work fine for us. Eg MS Windows or files
908 dnl hosted on AFS, both examples where simple links work, but links to
909 dnl directories fail. We use a cut-down version instead.
912 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
913 rm -f conf$$ conf$$.file
915 LN_S_FILEONLY='cp -p'
917 if (echo >conf$$.file) 2>/dev/null; then
918 if ln -s conf$$.file conf$$ 2>/dev/null; then
919 LN_S_FILEONLY='ln -s'
920 elif ln conf$$.file conf$$ 2>/dev/null; then
925 rm -f conf$$ conf$$.file
927 if test "$LN_S_FILEONLY" = "ln -s"; then
930 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
933 AC_SUBST(LN_S_FILEONLY)
936 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
937 dnl doesn't support links to directories, as in "ln file dir". But that
938 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
939 dnl executables at "make install" time.
940 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
941 dnl for more details.
942 if test "$opsys" = "mingw32"; then
946 AC_PATH_PROG(INSTALL_INFO, install-info, :,
947 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
948 dnl Don't use GZIP, which is used by gzip for additional parameters.
949 AC_PATH_PROG(GZIP_PROG, gzip)
951 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
952 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
954 if test $opsys = gnu-linux; then
955 AC_PATH_PROG(PAXCTL, paxctl,,
956 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
957 if test "X$PAXCTL" != X; then
958 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
959 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
960 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
961 else AC_MSG_RESULT(no); PAXCTL=""; fi])
965 ## Need makeinfo >= 4.7 (?) to build the manuals.
966 AC_PATH_PROG(MAKEINFO, makeinfo, no)
967 dnl By this stage, configure has already checked for egrep and set EGREP,
968 dnl or exited with an error if no egrep was found.
969 if test "$MAKEINFO" != "no"; then
971 $MAKEINFO --version 2> /dev/null |
972 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
978 ## Makeinfo is unusual. For a released Emacs, the manuals are
979 ## pre-built, and not deleted by the normal clean rules. makeinfo is
980 ## therefore in the category of "special tools" not normally required, which
981 ## configure does not have to check for (eg autoconf itself).
982 ## In a Bazaar checkout on the other hand, the manuals are not included.
983 ## So makeinfo is a requirement to build from Bazaar, and configure
984 ## should test for it as it does for any other build requirement.
985 ## We use the presence of $srcdir/info/emacs to distinguish a release,
986 ## with pre-built manuals, from a Bazaar checkout.
989 if test "$MAKEINFO" = "no"; then
991 if test "x${with_makeinfo}" = "xno"; then
993 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
994 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
995 source tree does not seem to have pre-built manuals in the `info' directory.
996 Either install a suitable version of makeinfo, or re-run configure
997 with the `--without-makeinfo' option to build without the manuals.] )
1000 AC_SUBST(HAVE_MAKEINFO)
1002 dnl Just so that there is only a single place we need to edit.
1004 INFO_OPTS=--no-split
1008 if test $opsys = mingw32; then
1009 DOCMISC_W32=efaq-w32
1013 AC_SUBST(DOCMISC_W32)
1015 dnl Add our options to ac_link now, after it is set up.
1017 if test x$GCC = xyes; then
1018 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1019 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1021 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1022 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1025 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1026 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1027 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1028 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1029 dnl if not built to support GNU ld.
1031 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1032 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1033 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1034 dnl Eg "make LDFLAGS=... all" could run into problems,
1035 dnl http://bugs.debian.org/684788
1036 dnl * unnecessary, since temacs is the only thing that actually needs it.
1037 dnl Indeed this is where it was originally, prior to:
1038 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1039 late_LDFLAGS="$LDFLAGS"
1040 if test x$GCC = xyes; then
1041 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1043 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1046 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1048 AC_MSG_CHECKING([for -znocombreloc])
1049 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1050 [AC_MSG_RESULT(yes)],
1051 LDFLAGS_NOCOMBRELOC=
1052 [AC_MSG_RESULT(no)])
1054 LDFLAGS="$late_LDFLAGS"
1056 dnl The function dump-emacs will not be defined and temacs will do
1057 dnl (load "loadup") automatically unless told otherwise.
1058 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1060 your-opsys-here) CANNOT_DUMP=yes ;;
1063 test "$CANNOT_DUMP" = "yes" && \
1064 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1066 AC_SUBST(CANNOT_DUMP)
1069 UNEXEC_OBJ=unexelf.o
1071 # MSDOS uses unexcoff.o
1073 UNEXEC_OBJ=unexaix.o
1079 UNEXEC_OBJ=unexmacosx.o
1082 UNEXEC_OBJ=unexhp9k800.o
1085 UNEXEC_OBJ=unexw32.o
1088 # Use the Solaris dldump() function, called from unexsol.c, to dump
1089 # emacs, instead of the generic ELF dump code found in unexelf.c.
1090 # The resulting binary has a complete symbol table, and is better
1091 # for debugging and other observability tools (debuggers, pstack, etc).
1093 # If you encounter a problem using dldump(), please consider sending
1094 # a message to the OpenSolaris tools-linking mailing list:
1095 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1097 # It is likely that dldump() works with older Solaris too, but this has
1098 # not been tested, so for now this change is for Solaris 10 or newer.
1099 UNEXEC_OBJ=unexsol.o
1106 ## Let `ld' find image libs and similar things in /usr/local/lib.
1107 ## The system compiler, GCC, has apparently been modified to not
1108 ## look there, contrary to what a stock GCC would do.
1109 ### It's not our place to do this. See bug#10313#17.
1110 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1115 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1116 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1120 ### It's not our place to do this. See bug#10313#17.
1121 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1126 ## Han Boetes <han@boetes.org> says this is necessary,
1127 ## otherwise Emacs dumps core on elf systems.
1128 LD_SWITCH_SYSTEM="-Z"
1131 AC_SUBST(LD_SWITCH_SYSTEM)
1133 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1135 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1136 ## which has not been defined yet. When this was handled with cpp,
1137 ## it was expanded to null when configure sourced the s/*.h file.
1138 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1139 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1140 ## (or somesuch), but because it is supposed to go at the _front_
1141 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1142 ## Compare with the gnu-linux case below, which added to the end
1143 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1144 ## LD_SWITCH_SYSTEM_TEMACS.
1147 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1154 AC_CHECK_DECL([__ELF__])
1155 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1156 ## With ELF, make sure that all common symbols get allocated to in the
1157 ## data section. Otherwise, the dump of temacs may miss variables in
1158 ## the shared library that have been initialized. For example, with
1159 ## GNU libc, __malloc_initialized would normally be resolved to the
1160 ## shared library's .bss section, which is fatal.
1161 if test "x$GCC" = "xyes"; then
1162 C_SWITCH_MACHINE="-fno-common"
1164 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1167 UNEXEC_OBJ=unexalpha.o
1171 AC_SUBST(C_SWITCH_MACHINE)
1173 AC_SUBST(UNEXEC_OBJ)
1176 ## Some programs in src produce warnings saying certain subprograms
1177 ## are too complex and need a MAXMEM value greater than 2000 for
1178 ## additional optimization. --nils@exp-math.uni-essen.de
1179 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1180 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1181 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1182 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1183 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1184 AC_SUBST(C_SWITCH_SYSTEM)
1189 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1190 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1192 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1194 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1196 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1198 ## Motif needs -lgen.
1199 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1202 AC_SUBST(LIBS_SYSTEM)
1204 ### Make sure subsequent tests use flags consistent with the build flags.
1206 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1207 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1209 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1212 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1213 AC_DEFUN([AC_TYPE_SIZE_T])
1214 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1215 AC_DEFUN([AC_TYPE_UID_T])
1219 dnl Current possibilities handled by sed (aix4-2 -> aix,
1220 dnl gnu-linux -> gnu/linux, etc.):
1221 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1222 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1223 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1230 ## Adding -lm confuses the dynamic linker, so omit it.
1233 freebsd | dragonfly )
1234 SYSTEM_TYPE=berkeley-unix
1236 gnu-linux | gnu-kfreebsd )
1238 hpux10-20 | hpux11 )
1242 SYSTEM_TYPE=windows-nt
1244 dnl NB this may be adjusted below.
1246 SYSTEM_TYPE=berkeley-unix
1250 SYSTEM_TYPE=usg-unix-v
1256 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1257 [The type of system you are compiling for; sets `system-type'.])
1260 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1261 pre_PKG_CONFIG_LIBS=$LIBS
1263 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1265 dnl This function definition taken from Gnome 2.0
1266 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1267 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1268 dnl also defines GSTUFF_PKG_ERRORS on error
1269 AC_DEFUN([PKG_CHECK_MODULES], [
1272 if test "$PKG_CONFIG" = "no" ; then
1273 ifelse([$4], , [AC_MSG_ERROR([
1274 *** 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])
1276 PKG_CONFIG_MIN_VERSION=0.9.0
1277 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1278 AC_MSG_CHECKING(for $2)
1280 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1281 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1282 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1289 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1290 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1291 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1297 ## If we have a custom action on failure, don't print errors, but
1298 ## do set a variable so people can do so. Do it in a subshell
1299 ## to capture any diagnostics in invoking pkg-config.
1300 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1301 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1307 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1308 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1312 if test $succeeded = yes; then
1313 ifelse([$3], , :, [$3])
1315 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.])], [$4])
1320 if test "${with_sound}" != "no"; then
1321 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1322 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1323 have_sound_header=yes, [], [
1325 #define WIN32_LEAN_AND_MEAN
1326 #include <windows.h>
1329 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1330 AC_MSG_ERROR([OSS sound support requested but not found.])
1332 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1333 # Emulation library used on NetBSD.
1334 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1335 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1336 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1337 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1338 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1342 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1344 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1345 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1346 if test $HAVE_ALSA = yes; then
1347 SAVE_CFLAGS="$CFLAGS"
1349 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1350 LIBS="$ALSA_LIBS $LIBS"
1351 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1352 emacs_alsa_normal=yes,
1353 emacs_alsa_normal=no)
1354 if test "$emacs_alsa_normal" != yes; then
1355 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1356 [[snd_lib_error_set_handler (0);]])],
1357 emacs_alsa_subdir=yes,
1358 emacs_alsa_subdir=no)
1359 if test "$emacs_alsa_subdir" != yes; then
1360 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1362 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1365 CFLAGS="$SAVE_CFLAGS"
1367 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1368 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1369 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1370 elif test "${with_sound}" = "alsa"; then
1371 AC_MSG_ERROR([ALSA sound support requested but not found.])
1373 fi dnl with_sound = alsa|yes
1375 dnl Define HAVE_SOUND if we have sound support. We know it works and
1376 dnl compiles only on the specified platforms. For others, it
1377 dnl probably doesn't make sense to try.
1378 dnl FIXME So surely we should bypass this whole section if not using
1379 dnl one of these platforms?
1380 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1382 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1383 dnl Adjust the --with-sound help text if you change this.
1384 gnu-linux|freebsd|netbsd|mingw32)
1385 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1391 AC_SUBST(CFLAGS_SOUND)
1394 dnl checks for header files
1395 AC_CHECK_HEADERS_ONCE(
1399 sys/utsname.h pwd.h utmp.h util.h)
1401 AC_MSG_CHECKING(if personality LINUX32 can be set)
1402 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1403 emacs_cv_personality_linux32=yes,
1404 emacs_cv_personality_linux32=no)
1405 AC_MSG_RESULT($emacs_cv_personality_linux32)
1407 if test $emacs_cv_personality_linux32 = yes; then
1408 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1409 [Define to 1 if personality LINUX32 can be set.])
1412 dnl On Solaris 8 there's a compilation warning for term.h because
1413 dnl it doesn't define `bool'.
1414 AC_CHECK_HEADERS(term.h, , , -)
1416 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1418 if test $ac_cv_have_decl_sys_siglist != yes; then
1419 # For Tru64, at least:
1420 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1425 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1426 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1427 #if HAVE_SYS_SOCKET_H
1428 #include <sys/socket.h>
1430 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1431 #if HAVE_SYS_SOCKET_H
1432 #include <sys/socket.h>
1434 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1435 #if HAVE_SYS_SOCKET_H
1436 #include <sys/socket.h>
1439 dnl checks for structure members
1440 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1441 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1442 struct ifreq.ifr_addr,
1443 struct ifreq.ifr_addr.sa_len], , ,
1444 [AC_INCLUDES_DEFAULT
1445 #if HAVE_SYS_SOCKET_H
1446 #include <sys/socket.h>
1452 dnl Check for endianness.
1453 dnl AC_C_BIGENDIAN is done by gnulib.
1455 dnl check for Make feature
1456 dnl AC_PROG_MAKE_SET is done by Automake.
1461 dnl check for GNU Make if we have GCC and autodepend is on.
1462 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1463 AC_MSG_CHECKING([whether we are using GNU Make])
1465 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1466 if test "x$testval" != x; then
1469 ac_enable_autodepend=no
1471 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1472 if test $HAVE_GNU_MAKE = yes; then
1473 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1474 SAVE_CFLAGS="$CFLAGS"
1475 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1476 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1477 CFLAGS="$SAVE_CFLAGS"
1478 test -f deps.d || ac_enable_autodepend=no
1480 AC_MSG_RESULT([$ac_enable_autodepend])
1482 if test $ac_enable_autodepend = yes; then
1483 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1484 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1485 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1486 deps_frag=autodeps.mk
1489 deps_frag=$srcdir/src/$deps_frag
1492 AC_SUBST_FILE(deps_frag)
1495 lisp_frag=$srcdir/src/lisp.mk
1496 AC_SUBST_FILE(lisp_frag)
1499 dnl checks for operating system services
1500 AC_SYS_LONG_FILE_NAMES
1502 #### Choose a window system.
1504 ## We leave window_system equal to none if
1505 ## we end up building without one. Any new window system should
1506 ## set window_system to an appropriate value and add objects to
1507 ## window-system-specific substs.
1511 if test "$no_x" != yes; then
1515 LD_SWITCH_X_SITE_RPATH=
1516 if test "${x_libraries}" != NONE; then
1517 if test -n "${x_libraries}"; then
1518 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1519 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1521 x_default_search_path=""
1522 x_search_path=${x_libraries}
1523 if test -z "${x_search_path}"; then
1524 x_search_path=/usr/lib
1526 for x_library in `echo ${x_search_path}: | \
1527 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1529 ${x_library}/X11/%L/%T/%N%C%S:\
1530 ${x_library}/X11/%l/%T/%N%C%S:\
1531 ${x_library}/X11/%T/%N%C%S:\
1532 ${x_library}/X11/%L/%T/%N%S:\
1533 ${x_library}/X11/%l/%T/%N%S:\
1534 ${x_library}/X11/%T/%N%S"
1535 if test x"${x_default_search_path}" = x; then
1536 x_default_search_path=${x_search_path}
1538 x_default_search_path="${x_search_path}:${x_default_search_path}"
1542 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1544 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1545 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1548 if test x"${x_includes}" = x; then
1549 bitmapdir=/usr/include/X11/bitmaps
1551 # accumulate include directories that have X11 bitmap subdirectories
1553 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1554 if test -d "${bmd}/X11/bitmaps"; then
1555 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1557 if test -d "${bmd}/bitmaps"; then
1558 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1561 if test ${bmd_acc} != "dummyval"; then
1562 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1569 tmp_CPPFLAGS="$CPPFLAGS"
1570 tmp_CFLAGS="$CFLAGS"
1571 CPPFLAGS="$CPPFLAGS -x objective-c"
1572 CFLAGS="$CFLAGS -x objective-c"
1575 if test "${with_ns}" != no; then
1576 if test "${opsys}" = darwin; then
1578 ns_appdir=`pwd`/nextstep/Emacs.app
1579 ns_appbindir=${ns_appdir}/Contents/MacOS
1580 ns_appresdir=${ns_appdir}/Contents/Resources
1581 ns_appsrc=Cocoa/Emacs.base
1582 elif test -f $GNUSTEP_CONFIG_FILE; then
1584 ns_appdir=`pwd`/nextstep/Emacs.app
1585 ns_appbindir=${ns_appdir}
1586 ns_appresdir=${ns_appdir}/Resources
1587 ns_appsrc=GNUstep/Emacs.base
1588 dnl FIXME sourcing this several times in subshells seems inefficient.
1589 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1590 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1591 dnl I seemed to need these as well with GNUstep-startup 0.25.
1592 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1593 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1594 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1595 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1596 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1597 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1598 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1599 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1600 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1601 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1602 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1603 dnl If they had chosen to either define it or not, we could have
1604 dnl just used AC_CHECK_DECL here.
1605 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1606 emacs_cv_objc_exceptions,
1607 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1608 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1612 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1613 if test $emacs_cv_objc_exceptions = yes; then
1614 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1615 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1616 [Define if GNUstep uses ObjC exceptions.])
1617 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1621 dnl This is only used while we test the NS headers, it gets reset below.
1622 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1624 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1625 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1626 files are missing or cannot be compiled.])])
1628 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1630 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1631 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1634 #error "OSX 10.4 or newer required"
1638 ns_osx_have_104=yes,
1640 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1642 ns_have_nsinteger=yes,
1643 ns_have_nsinteger=no)
1644 if test $ns_osx_have_104 = no; then
1645 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1647 if test $ns_have_nsinteger = yes; then
1648 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1652 AC_SUBST(LIBS_GNUSTEP)
1654 INSTALL_ARCH_INDEP_EXTRA=install-etc
1655 ns_self_contained=no
1658 if test "${HAVE_NS}" = yes; then
1659 if test "$with_toolkit_scroll_bars" = "no"; then
1660 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1663 window_system=nextstep
1664 # set up packaging dirs
1665 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1666 ns_self_contained=yes
1667 prefix=${ns_appresdir}
1668 exec_prefix=${ns_appbindir}
1669 dnl This one isn't really used, only archlibdir is.
1670 libexecdir="\${ns_appbindir}/libexec"
1671 archlibdir="\${ns_appbindir}/libexec"
1672 etcdocdir="\${ns_appresdir}/etc"
1673 etcdir="\${ns_appresdir}/etc"
1674 dnl FIXME maybe set datarootdir instead.
1675 dnl That would also get applications, icons, man.
1676 infodir="\${ns_appresdir}/info"
1677 mandir="\${ns_appresdir}/man"
1678 lispdir="\${ns_appresdir}/lisp"
1679 leimdir="\${ns_appresdir}/leim"
1680 INSTALL_ARCH_INDEP_EXTRA=
1682 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1684 CFLAGS="$tmp_CFLAGS"
1685 CPPFLAGS="$tmp_CPPFLAGS"
1686 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1687 AC_SUBST(ns_self_contained)
1689 AC_SUBST(NS_OBJC_OBJ)
1700 if test "${with_w32}" != no; then
1703 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1704 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1705 cannot be found.])])
1708 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1711 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1716 if test "${opsys}" = "mingw32"; then
1717 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1718 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1719 #include <windows.h>
1720 #include <usp10.h>]],
1721 [[PIMAGE_NT_HEADERS pHeader;
1722 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1723 [emacs_cv_w32api=yes
1726 AC_MSG_RESULT($emacs_cv_w32api)
1727 if test "${emacs_cv_w32api}" = "no"; then
1728 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1739 if test "${HAVE_W32}" = "yes"; then
1740 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1741 AC_CHECK_TOOL(WINDRES, [windres],
1742 [AC_MSG_ERROR([No resource compiler found.])])
1743 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1744 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1745 EMACSRES="emacs.res"
1746 case "$canonical" in
1747 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1748 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1750 UPDATE_MANIFEST=update-game-score.exe.manifest
1751 if test "${opsys}" = "cygwin"; then
1752 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1753 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1754 # Tell the linker that emacs.res is an object (which we compile from
1755 # the rc file), not a linker script.
1756 W32_RES_LINK="-Wl,emacs.res"
1758 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1759 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1760 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1761 W32_RES_LINK="\$(EMACSRES)"
1762 CLIENTRES="emacsclient.res"
1763 CLIENTW="emacsclientw\$(EXEEXT)"
1764 FIRSTFILE_OBJ=firstfile.o
1767 LIBS_ECLIENT="-lcomctl32"
1768 LIB_WSOCK32="-lwsock32"
1769 NTLIB="ntlib.$ac_objext"
1770 XARGS_LIMIT="-s 10000"
1776 AC_SUBST(EMACS_MANIFEST)
1777 AC_SUBST(UPDATE_MANIFEST)
1780 AC_SUBST(W32_RES_LINK)
1781 AC_SUBST(FIRSTFILE_OBJ)
1784 AC_SUBST(LIBS_ECLIENT)
1785 AC_SUBST(LIB_WSOCK32)
1787 AC_SUBST(XARGS_LIMIT)
1789 if test "${HAVE_W32}" = "yes"; then
1794 ## $window_system is now set to the window system we will
1797 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1798 # Too many warnings for now.
1800 nw="$nw -Wsuggest-attribute=const"
1801 nw="$nw -Wsuggest-attribute=noreturn"
1802 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1804 gl_WARN_ADD([-Wno-unused-variable])
1805 gl_WARN_ADD([-Wno-unused-but-set-variable])
1806 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1814 case "${window_system}" in
1819 case "${with_x_toolkit}" in
1820 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1821 motif ) USE_X_TOOLKIT=MOTIF ;;
1823 term_header=gtkutil.h
1824 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1825 dnl USE_X_TOOLKIT is set.
1826 USE_X_TOOLKIT=none ;;
1827 gtk2 ) with_gtk2=yes
1828 term_header=gtkutil.h
1829 USE_X_TOOLKIT=none ;;
1830 gtk3 ) with_gtk3=yes
1831 term_header=gtkutil.h
1832 USE_X_TOOLKIT=none ;;
1833 no ) USE_X_TOOLKIT=none ;;
1834 dnl If user did not say whether to use a toolkit, make this decision later:
1835 dnl use the toolkit if we have gtk, or X11R5 or newer.
1836 * ) USE_X_TOOLKIT=maybe ;;
1840 term_header=nsterm.h
1843 term_header=w32term.h
1847 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1848 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1849 if test "$HAVE_XSERVER" = true ||
1850 test -n "$DISPLAY" ||
1851 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1852 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1853 were found. You should install the relevant development files for X
1854 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1855 sure you have development files for image handling, i.e.
1856 tiff, gif, jpeg, png and xpm.
1857 If you are sure you want Emacs compiled without X window support, pass
1863 ### If we're using X11, we should use the X menu package.
1866 yes ) HAVE_MENUS=yes ;;
1869 # Does the opsystem file prohibit the use of the GNU malloc?
1870 # Assume not, until told otherwise.
1874 [whether malloc is Doug Lea style],
1875 [emacs_cv_var_doug_lea_malloc],
1878 [[#include <malloc.h>
1879 static void hook (void) {}]],
1880 [[malloc_set_state (malloc_get_state ());
1881 __after_morecore_hook = hook;
1882 __malloc_initialize_hook = hook;]])],
1883 [emacs_cv_var_doug_lea_malloc=yes],
1884 [emacs_cv_var_doug_lea_malloc=no])])
1885 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1888 dnl See comments in aix4-2.h about maybe using system malloc there.
1891 ## darwin ld insists on the use of malloc routines in the System framework.
1892 darwin|sol2-10) system_malloc=yes ;;
1895 if test "${system_malloc}" = "yes"; then
1896 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1899 (The GNU allocators don't work with this system configuration.)"
1903 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1904 VMLIMIT_OBJ=vm-limit.o
1906 AC_CHECK_HEADERS([sys/vlimit.h])
1907 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1910 [[extern char data_start[]; char ch;]],
1911 [[return data_start < &ch;]])],
1912 [emacs_cv_data_start=yes],
1913 [emacs_cv_data_start=no])])
1914 if test $emacs_cv_data_start = yes; then
1915 AC_DEFINE([HAVE_DATA_START], 1,
1916 [Define to 1 if data_start is the address of the start
1917 of the main data segment.])
1920 AC_SUBST(GMALLOC_OBJ)
1921 AC_SUBST(VMLIMIT_OBJ)
1923 if test "$doug_lea_malloc" = "yes" ; then
1924 if test "$GNU_MALLOC" = yes ; then
1926 (Using Doug Lea's new malloc from the GNU C Library.)"
1928 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1929 [Define to 1 if you are using the GNU C Library.])
1931 ## Use mmap directly for allocating larger buffers.
1932 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1933 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1934 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1936 gnu*) REL_ALLOC=no ;;
1940 if test x"${REL_ALLOC}" = x; then
1941 REL_ALLOC=${GNU_MALLOC}
1944 use_mmap_for_buffers=no
1946 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1950 if test $use_mmap_for_buffers = yes; then
1951 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1955 LIBS="$LIBS_SYSTEM $LIBS"
1957 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1958 AC_CHECK_LIB(dnet, dnet_ntoa)
1959 dnl This causes -lresolv to get used in subsequent tests,
1960 dnl which causes failures on some systems such as HPUX 9.
1961 dnl AC_CHECK_LIB(resolv, gethostbyname)
1963 dnl FIXME replace main with a function we actually want from this library.
1964 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1966 dnl Check if pthreads is available.
1968 AC_CHECK_HEADERS_ONCE(pthread.h)
1969 if test "$ac_cv_header_pthread_h"; then
1970 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1971 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1972 dnl testing for pthread_self if Emacs uses gmalloc.c.
1973 if test "$GMALLOC_OBJ" = gmalloc.o; then
1974 emacs_pthread_function=pthread_atfork
1976 emacs_pthread_function=pthread_self
1978 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1980 if test "$HAVE_PTHREAD" = yes; then
1981 case "${canonical}" in
1983 *) LIB_PTHREAD="-lpthread"
1984 LIBS="$LIB_PTHREAD $LIBS" ;;
1986 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1988 AC_SUBST([LIB_PTHREAD])
1990 AC_CHECK_LIB(pthreads, cma_open)
1992 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1993 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1994 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1995 ## added to LIBS in configure would never contain the pthreads part,
1996 ## but the value used in Makefiles might. FIXME?
1998 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1999 ## be harmless on older versions of X where it happens to exist.
2000 test "$opsys" = "aix4-2" && \
2001 test $ac_cv_lib_pthreads_cma_open = yes && \
2002 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
2004 dnl Check for need for bigtoc support on IBM AIX
2008 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2010 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2011 *) gdb_cv_bigtoc=-bbigtoc ;;
2014 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2015 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2020 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2021 # used for the tests that follow. We set them back to REAL_CFLAGS and
2022 # REAL_CPPFLAGS later on.
2024 REAL_CFLAGS="$CFLAGS"
2025 REAL_CPPFLAGS="$CPPFLAGS"
2027 if test "${HAVE_X11}" = "yes"; then
2028 DEFS="$C_SWITCH_X_SITE $DEFS"
2029 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2031 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2032 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2034 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2035 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2036 # but it's more convenient here to set LD_RUN_PATH since this
2037 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2038 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2039 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2043 if test "${opsys}" = "gnu-linux"; then
2044 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2045 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2046 [[XOpenDisplay ("foo");]])],
2047 [xgnu_linux_first_failure=no],
2048 [xgnu_linux_first_failure=yes])
2049 if test "${xgnu_linux_first_failure}" = "yes"; then
2050 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2051 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2052 OLD_CPPFLAGS="$CPPFLAGS"
2054 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2055 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2056 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2057 LIBS="$LIBS -b i486-linuxaout"
2058 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2059 [[XOpenDisplay ("foo");]])],
2060 [xgnu_linux_second_failure=no],
2061 [xgnu_linux_second_failure=yes])
2062 if test "${xgnu_linux_second_failure}" = "yes"; then
2063 # If we get the same failure with -b, there is no use adding -b.
2064 # So take it out. This plays safe.
2065 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2066 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2067 CPPFLAGS="$OLD_CPPFLAGS"
2078 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2079 # header files included from there.
2080 AC_MSG_CHECKING(for Xkb)
2081 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2082 #include <X11/XKBlib.h>]],
2083 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2084 emacs_xkb=yes, emacs_xkb=no)
2085 AC_MSG_RESULT($emacs_xkb)
2086 if test $emacs_xkb = yes; then
2087 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2090 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2091 XScreenNumberOfScreen)
2094 if test "${window_system}" = "x11"; then
2095 AC_MSG_CHECKING(X11 version 6)
2096 AC_CACHE_VAL(emacs_cv_x11_version_6,
2097 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2098 [[#if XlibSpecificationRelease < 6
2101 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2102 if test $emacs_cv_x11_version_6 = yes; then
2103 AC_MSG_RESULT(6 or newer)
2104 AC_DEFINE(HAVE_X11R6, 1,
2105 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2106 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2107 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2111 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2112 [Define if you have usable X11R6-style XIM support.])
2116 AC_MSG_RESULT(before 6)
2121 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2123 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2124 if test "${with_rsvg}" != "no"; then
2125 RSVG_REQUIRED=2.11.0
2126 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2128 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2129 AC_SUBST(RSVG_CFLAGS)
2132 if test $HAVE_RSVG = yes; then
2133 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2134 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2135 LIBS="$RSVG_LIBS $LIBS"
2141 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2142 if test "${with_imagemagick}" != "no"; then
2143 ## 6.2.8 is the earliest version known to work, but earlier versions
2144 ## might work - let us know if you find one.
2145 ## 6.0.7 does not work. See bug#7955.
2146 ## 6.8.2 makes Emacs crash; see Bug#13867.
2147 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2148 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2149 AC_SUBST(IMAGEMAGICK_CFLAGS)
2150 AC_SUBST(IMAGEMAGICK_LIBS)
2152 if test $HAVE_IMAGEMAGICK = yes; then
2153 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2154 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2155 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2156 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2164 gtk_term_header=$term_header
2167 if test "${opsys}" != "mingw32"; then
2168 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2171 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2173 dnl Checks for libraries.
2174 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2175 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2176 AC_MSG_ERROR($GTK_PKG_ERRORS)
2178 if test "$pkg_check_gtk" = "yes"; then
2179 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2180 GTK_OBJ=emacsgtkfixed.o
2181 gtk_term_header=gtkutil.h
2182 USE_GTK_TOOLKIT="GTK3"
2183 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2184 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2185 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2189 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2193 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2196 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2198 dnl Checks for libraries.
2199 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2200 if test "$pkg_check_gtk" = "no" &&
2201 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2203 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2205 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2209 if test x"$pkg_check_gtk" = xyes; then
2211 AC_SUBST(GTK_CFLAGS)
2213 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2214 CFLAGS="$CFLAGS $GTK_CFLAGS"
2215 LIBS="$GTK_LIBS $LIBS"
2216 dnl Try to compile a simple GTK program.
2217 AC_MSG_CHECKING([whether GTK compiles])
2221 [[/* Check the Gtk and Glib APIs. */
2222 #include <gtk/gtk.h>
2223 #include <glib-object.h>
2225 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2229 GtkSettings *gs = 0;
2230 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2231 strict C prohibits this. Use gtk_main_iteration to test that the
2232 libraries are there. */
2233 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2234 0, 0, 0, G_CALLBACK (callback), 0))
2235 gtk_main_iteration ();
2238 AC_MSG_RESULT([$GTK_COMPILES])
2239 if test "${GTK_COMPILES}" != "yes"; then
2241 if test "$USE_X_TOOLKIT" != "maybe"; then
2242 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2246 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2247 GTK_OBJ="gtkutil.o $GTK_OBJ"
2248 term_header=$gtk_term_header
2250 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2253 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2254 closing open displays. This is no problem if you just use
2255 one display, but if you use more than one and close one of them
2265 if test "${HAVE_GTK}" = "yes"; then
2267 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2268 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2269 if test "$with_toolkit_scroll_bars" != no; then
2270 with_toolkit_scroll_bars=yes
2273 dnl Check if we have the old file selection dialog declared and
2274 dnl in the link library. In 2.x it may be in the library,
2275 dnl but not declared if deprecated featured has been selected out.
2276 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2277 HAVE_GTK_FILE_SELECTION=no
2278 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2279 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2280 #include <gtk/gtk.h>])
2281 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2282 AC_CHECK_FUNCS(gtk_file_selection_new)
2285 dnl Same as above for gtk_handle_box.
2286 HAVE_GTK_HANDLE_BOX=no
2287 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2288 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2289 #include <gtk/gtk.h>])
2290 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2291 AC_CHECK_FUNCS(gtk_handle_box_new)
2294 dnl Same as above for gtk_tearoff_menu_item.
2295 HAVE_GTK_TEAROFF_MENU_ITEM=no
2296 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2297 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2298 #include <gtk/gtk.h>])
2299 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2300 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2303 dnl Check for functions introduced in 2.14 and later.
2304 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2305 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2306 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2307 gtk_orientable_set_orientation \
2308 gtk_window_set_has_resize_grip)
2310 term_header=gtkutil.h
2318 if test "${with_xwidgets}" != "no"; then
2319 echo "xwidgets enabled, checking webkit, and others"
2321 AC_DEFINE(HAVE_XWIDGETS, 1, [Define to 1 if you have xwidgets support.])
2324 # - enable only if gtk/gtk3 enabled
2326 # - only webkit_osr is good so remove plain webkit laterish
2328 #webkit version for gtk3.
2329 WEBKIT_REQUIRED=1.4.0
2330 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2332 if test "${with_gtk3}" = "yes"; then
2333 PKG_CHECK_MODULES(WEBKIT, $WEBKIT_MODULES, HAVE_WEBKIT=yes, HAVE_WEBKIT=no)
2334 if test $HAVE_WEBKIT = yes; then
2335 AC_DEFINE(HAVE_WEBKIT_OSR, 1, [Define to 1 if you have webkit_osr support.])
2340 GIR_MODULES="gobject-introspection-1.0 >= $GIR_REQUIRED"
2341 PKG_CHECK_MODULES(GIR, $GIR_MODULES, HAVE_GIR=yes, HAVE_GIR=no)
2342 if test $HAVE_GIR = yes; then
2343 AC_DEFINE(HAVE_GIR, 1, [Define to 1 if you have GIR support.])
2350 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2351 dnl other platforms.
2354 if test "${with_dbus}" = "yes"; then
2355 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2356 if test "$HAVE_DBUS" = yes; then
2357 LIBS="$LIBS $DBUS_LIBS"
2358 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2359 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2360 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2362 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2363 dbus_type_is_valid \
2364 dbus_validate_bus_name \
2365 dbus_validate_path \
2366 dbus_validate_interface \
2367 dbus_validate_member)
2373 dnl GSettings has been tested under GNU/Linux only.
2375 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2376 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2377 if test "$HAVE_GSETTINGS" = "yes"; then
2378 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2379 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2380 SETTINGS_LIBS="$GSETTINGS_LIBS"
2384 dnl GConf has been tested under GNU/Linux only.
2385 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2387 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2388 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2389 if test "$HAVE_GCONF" = yes; then
2390 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2391 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2392 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2393 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2397 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2398 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2399 if test "$HAVE_GOBJECT" = "yes"; then
2400 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2401 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2403 SAVE_CFLAGS="$CFLAGS"
2405 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2406 LIBS="$SETTINGS_LIBS $LIBS"
2407 AC_CHECK_FUNCS([g_type_init])
2408 CFLAGS="$SAVE_CFLAGS"
2411 AC_SUBST(SETTINGS_CFLAGS)
2412 AC_SUBST(SETTINGS_LIBS)
2415 dnl SELinux is available for GNU/Linux only.
2418 if test "${with_selinux}" = "yes"; then
2419 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2420 if test "$HAVE_LIBSELINUX" = yes; then
2421 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2422 LIBSELINUX_LIBS=-lselinux
2425 AC_SUBST(LIBSELINUX_LIBS)
2428 if test "${with_gnutls}" = "yes" ; then
2429 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2430 if test "${HAVE_GNUTLS}" = "yes"; then
2431 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2434 # Windows loads GnuTLS dynamically
2435 if test "${opsys}" = "mingw32"; then
2438 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2439 LIBS="$LIBGNUTLS_LIBS $LIBS"
2443 AC_SUBST(LIBGNUTLS_LIBS)
2444 AC_SUBST(LIBGNUTLS_CFLAGS)
2449 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2450 dnl a particular library. This doesn't make much sense?
2451 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2452 with_file_notification=no
2455 dnl MS Windows native file monitor is available for mingw32 only.
2456 case $with_file_notification,$opsys in
2457 w32,* | yes,mingw32)
2458 AC_CHECK_HEADER(windows.h)
2459 if test "$ac_cv_header_windows_h" = yes ; then
2460 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2461 NOTIFY_OBJ=w32notify.o
2462 NOTIFY_SUMMARY="yes (w32)"
2466 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2467 dnl has been added in glib 2.24. It has been tested under
2468 dnl GNU/Linux only. We take precedence over inotify, but this makes
2469 dnl only sense when glib has been compiled with inotify support. How
2471 case $with_file_notification,$NOTIFY_OBJ in
2473 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2474 if test "$HAVE_GFILENOTIFY" = "yes"; then
2475 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2476 NOTIFY_OBJ=gfilenotify.o
2477 NOTIFY_SUMMARY="yes -lgio (gfile)"
2481 dnl inotify is only available on GNU/Linux.
2482 case $with_file_notification,$NOTIFY_OBJ in
2484 AC_CHECK_HEADER(sys/inotify.h)
2485 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2486 AC_CHECK_FUNC(inotify_init1)
2487 if test "$ac_cv_func_inotify_init1" = yes; then
2488 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2489 NOTIFY_OBJ=inotify.o
2490 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2495 case $with_file_notification,$NOTIFY_OBJ in
2496 yes,* | no,* | *,?*) ;;
2497 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2500 if test -n "$NOTIFY_OBJ"; then
2501 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2503 AC_SUBST(NOTIFY_OBJ)
2504 AC_SUBST(GFILENOTIFY_CFLAGS)
2505 AC_SUBST(GFILENOTIFY_LIBS)
2507 dnl Do not put whitespace before the #include statements below.
2508 dnl Older compilers (eg sunos4 cc) choke on it.
2511 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2512 if test "$with_xaw3d" != no; then
2513 AC_CACHE_VAL(emacs_cv_xaw3d,
2514 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2515 #include <X11/Intrinsic.h>
2516 #include <X11/Xaw3d/Simple.h>]],
2518 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2519 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2520 emacs_cv_xaw3d=no)])
2524 if test $emacs_cv_xaw3d = yes; then
2525 AC_MSG_CHECKING(for xaw3d)
2526 AC_MSG_RESULT([yes; using Lucid toolkit])
2530 AC_DEFINE(HAVE_XAW3D, 1,
2531 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2533 AC_MSG_CHECKING(for xaw3d)
2535 AC_MSG_CHECKING(for libXaw)
2536 AC_CACHE_VAL(emacs_cv_xaw,
2537 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2538 #include <X11/Intrinsic.h>
2539 #include <X11/Xaw/Simple.h>]],
2543 if test $emacs_cv_xaw = yes; then
2544 AC_MSG_RESULT([yes; using Lucid toolkit])
2547 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2548 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2550 AC_MSG_ERROR([No X toolkit could be found.
2551 If you are sure you want Emacs compiled without an X toolkit, pass
2553 to configure. Otherwise, install the development libraries for the toolkit
2554 that you want to use (e.g. Gtk+) and re-run configure.])
2559 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2562 if test "${USE_X_TOOLKIT}" != "none"; then
2563 AC_MSG_CHECKING(X11 toolkit version)
2564 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2565 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2566 [[#if XtSpecificationRelease < 6
2569 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2570 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2571 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2572 AC_MSG_RESULT(6 or newer)
2573 AC_DEFINE(HAVE_X11XTR6, 1,
2574 [Define to 1 if you have the X11R6 or newer version of Xt.])
2575 LIBXTR6="-lSM -lICE"
2577 ## Use libw.a along with X11R6 Xt.
2578 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2581 AC_MSG_RESULT(before 6)
2584 dnl If using toolkit, check whether libXmu.a exists.
2585 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2587 if test x$HAVE_X11XTR6 = xyes; then
2588 LIBS="-lXt -lSM -lICE $LIBS"
2592 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2593 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2594 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2598 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2599 dnl Why not just test for libxmu in the normal way?
2602 ## These systems don't supply Xmu.
2604 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2612 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2613 if test "${HAVE_X11}" = "yes"; then
2614 if test "${USE_X_TOOLKIT}" != "none"; then
2615 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2620 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2621 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2622 if test -d /usr/include/openmotif; then
2623 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2624 emacs_cv_openmotif=yes
2625 case "$canonical" in
2626 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2627 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2630 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2633 emacs_cv_openmotif=no
2635 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2636 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2637 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2640 Motif version prior to 2.1.
2642 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2643 if test $emacs_cv_motif_version_2_1 = yes; then
2644 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2645 if test x$emacs_cv_openmotif = xyes; then
2646 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2649 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2650 # We put this in CFLAGS temporarily to precede other -I options
2651 # that might be in CFLAGS temporarily.
2652 # We put this in CPPFLAGS where it precedes the other -I options.
2653 OLD_CPPFLAGS=$CPPFLAGS
2655 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2656 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2657 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2659 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2660 if test $emacs_cv_lesstif = yes; then
2661 # Make sure this -I option remains in CPPFLAGS after it is set
2662 # back to REAL_CPPFLAGS.
2663 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2664 # have those other -I options anyway. Ultimately, having this
2665 # directory ultimately in CPPFLAGS will be enough.
2666 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2667 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2670 CPPFLAGS=$OLD_CPPFLAGS
2673 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2674 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2677 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2678 dnl using Motif or Xaw3d is available, and unless
2679 dnl --with-toolkit-scroll-bars=no was specified.
2681 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2682 [Define to 1 if we should use toolkit scroll bars.])dnl
2683 USE_TOOLKIT_SCROLL_BARS=no
2684 if test "${with_toolkit_scroll_bars}" != "no"; then
2685 if test "${USE_X_TOOLKIT}" != "none"; then
2686 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2687 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2689 USE_TOOLKIT_SCROLL_BARS=yes
2690 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2691 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2692 USE_TOOLKIT_SCROLL_BARS=yes
2694 elif test "${HAVE_GTK}" = "yes"; then
2695 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2696 USE_TOOLKIT_SCROLL_BARS=yes
2697 elif test "${HAVE_NS}" = "yes"; then
2698 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2699 USE_TOOLKIT_SCROLL_BARS=yes
2700 elif test "${HAVE_W32}" = "yes"; then
2701 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2702 USE_TOOLKIT_SCROLL_BARS=yes
2706 dnl See if XIM is available.
2707 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2708 #include <X11/Xlib.h>
2709 #include <X11/Xresource.h>]],
2710 [[XIMProc callback;]])],
2712 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2715 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2717 if test "${with_xim}" != "no"; then
2718 AC_DEFINE(USE_XIM, 1,
2719 [Define to 1 if we should use XIM, if it is available.])
2723 if test "${HAVE_XIM}" != "no"; then
2725 if test "$GCC" = yes; then
2726 CFLAGS="$CFLAGS --pedantic-errors"
2728 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2729 #include <X11/Xlib.h>
2730 #include <X11/Xresource.h>]],
2736 XPointer *client_data;
2738 /* If we're not using GCC, it's probably not XFree86, and this is
2739 probably right, but we can't use something like --pedantic-errors. */
2740 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2741 char*, XIMProc, XPointer*);
2743 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2745 [emacs_cv_arg6_star=yes])
2746 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2747 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2748 either XPointer or XPointer*.])dnl
2749 if test "$emacs_cv_arg6_star" = yes; then
2750 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2752 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2757 ### Start of font-backend (under any platform) section.
2758 # (nothing here yet -- this is a placeholder)
2759 ### End of font-backend (under any platform) section.
2761 ### Start of font-backend (under X11) section.
2762 if test "${HAVE_X11}" = "yes"; then
2763 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2765 ## Use -lXft if available, unless `--with-xft=no'.
2767 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2770 if test "x${with_xft}" != "xno"; then
2772 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2773 ## Because xftfont.c uses XRenderQueryExtension, we also
2774 ## need to link to -lXrender.
2776 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2777 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2778 OLD_CPPFLAGS="$CPPFLAGS"
2779 OLD_CFLAGS="$CFLAGS"
2781 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2782 CFLAGS="$CFLAGS $XFT_CFLAGS"
2783 XFT_LIBS="-lXrender $XFT_LIBS"
2784 LIBS="$XFT_LIBS $LIBS"
2785 AC_CHECK_HEADER(X11/Xft/Xft.h,
2786 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2787 [[#include <X11/X.h>]])
2789 if test "${HAVE_XFT}" = "yes"; then
2790 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2792 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2794 CPPFLAGS="$OLD_CPPFLAGS"
2795 CFLAGS="$OLD_CFLAGS"
2797 fi # "${HAVE_XFT}" = "yes"
2798 fi # "$HAVE_XFT" != no
2799 fi # "x${with_xft}" != "xno"
2801 ## We used to allow building with FreeType and without Xft.
2802 ## However, the ftx font backend driver is not in good shape.
2803 if test "$HAVE_XFT" != "yes"; then
2804 dnl For the "Does Emacs use" message at the end.
2808 dnl Strict linkers fail with
2809 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2810 dnl if -lfreetype is not specified.
2811 dnl The following is needed to set FREETYPE_LIBS.
2812 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2815 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2819 if test "${HAVE_FREETYPE}" = "yes"; then
2820 AC_DEFINE(HAVE_FREETYPE, 1,
2821 [Define to 1 if using the freetype and fontconfig libraries.])
2822 if test "${with_libotf}" != "no"; then
2823 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2825 if test "$HAVE_LIBOTF" = "yes"; then
2826 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2827 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2828 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2829 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2830 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2831 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2832 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2836 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2837 dnl Does the new font backend require it, or can it work without it?
2841 if test "${HAVE_LIBOTF}" = yes; then
2842 if test "${with_m17n_flt}" != "no"; then
2843 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2844 if test "$HAVE_M17N_FLT" = "yes"; then
2845 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2856 ### End of font-backend (under X11) section.
2858 AC_SUBST(FREETYPE_CFLAGS)
2859 AC_SUBST(FREETYPE_LIBS)
2860 AC_SUBST(FONTCONFIG_CFLAGS)
2861 AC_SUBST(FONTCONFIG_LIBS)
2862 AC_SUBST(LIBOTF_CFLAGS)
2863 AC_SUBST(LIBOTF_LIBS)
2864 AC_SUBST(M17N_FLT_CFLAGS)
2865 AC_SUBST(M17N_FLT_LIBS)
2867 ### Use -lXpm if available, unless `--with-xpm=no'.
2868 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2871 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2872 if test "${with_xpm}" != "no"; then
2873 SAVE_CPPFLAGS="$CPPFLAGS"
2874 SAVE_LDFLAGS="$LDFLAGS"
2875 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2876 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2877 AC_CHECK_HEADER(X11/xpm.h,
2878 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2879 if test "${HAVE_XPM}" = "yes"; then
2880 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2881 AC_EGREP_CPP(no_return_alloc_pixels,
2882 [#include "X11/xpm.h"
2883 #ifndef XpmReturnAllocPixels
2884 no_return_alloc_pixels
2886 ], HAVE_XPM=no, HAVE_XPM=yes)
2888 if test "${HAVE_XPM}" = "yes"; then
2889 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2893 CPPFLAGS="$SAVE_CPPFLAGS"
2894 LDFLAGS="$SAVE_LDFLAGS"
2899 if test "${HAVE_XPM}" = "yes"; then
2900 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2905 if test "${HAVE_X11}" = "yes"; then
2906 if test "${with_xpm}" != "no"; then
2907 AC_CHECK_HEADER(X11/xpm.h,
2908 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2909 if test "${HAVE_XPM}" = "yes"; then
2910 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2911 AC_EGREP_CPP(no_return_alloc_pixels,
2912 [#include "X11/xpm.h"
2913 #ifndef XpmReturnAllocPixels
2914 no_return_alloc_pixels
2916 ], HAVE_XPM=no, HAVE_XPM=yes)
2918 if test "${HAVE_XPM}" = "yes"; then
2926 if test "${HAVE_XPM}" = "yes"; then
2927 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2932 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2933 ### slightly different requirements wrt image libraries (it doesn't
2934 ### use -lXpm because it loads the xpm shared library dynamically at
2936 if test "${opsys}" = "mingw32"; then
2937 if test "${with_xpm}" != "no"; then
2938 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2942 if test "${HAVE_XPM}" = "yes"; then
2943 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2949 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2950 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2953 if test "${opsys}" = "mingw32"; then
2954 if test "${with_jpeg}" != "no"; then
2955 dnl Checking for jpeglib.h can lose because of a redefinition of
2957 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2959 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2960 if test "${HAVE_JPEG}" = "yes"; then
2961 AC_DEFINE(HAVE_JPEG)
2962 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2963 [#include <jpeglib.h>
2964 version=JPEG_LIB_VERSION
2966 [AC_DEFINE(HAVE_JPEG)],
2967 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2970 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2971 if test "${with_jpeg}" != "no"; then
2972 dnl Checking for jpeglib.h can lose because of a redefinition of
2974 AC_CHECK_HEADER(jerror.h,
2975 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2978 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2979 if test "${HAVE_JPEG}" = "yes"; then
2980 AC_DEFINE(HAVE_JPEG)
2981 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2982 [#include <jpeglib.h>
2983 version=JPEG_LIB_VERSION
2985 [AC_DEFINE(HAVE_JPEG)],
2986 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2989 if test "${HAVE_JPEG}" = "yes"; then
2995 ### Use -lpng if available, unless `--with-png=no'.
2996 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2999 if test "${opsys}" = "mingw32"; then
3000 if test "${with_png}" != "no"; then
3001 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
3003 if test "${HAVE_PNG}" = "yes"; then
3004 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
3006 AC_CHECK_DECL(png_longjmp,
3008 [AC_DEFINE(PNG_DEPSTRUCT, [],
3009 [Define to empty to suppress deprecation warnings when building
3010 with --enable-gcc-warnings and with libpng versions before 1.5,
3011 which lack png_longjmp.])],
3012 [[#ifdef HAVE_LIBPNG_PNG_H
3013 # include <libpng/png.h>
3019 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3020 if test "${with_png}" != "no"; then
3021 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3022 # in /usr/include/libpng.
3023 AC_CHECK_HEADERS(png.h libpng/png.h, break)
3024 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
3025 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
3029 if test "${HAVE_PNG}" = "yes"; then
3030 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
3031 LIBPNG="-lpng -lz -lm"
3033 AC_CHECK_DECL(png_longjmp,
3035 [AC_DEFINE(PNG_DEPSTRUCT, [],
3036 [Define to empty to suppress deprecation warnings when building
3037 with --enable-gcc-warnings and with libpng versions before 1.5,
3038 which lack png_longjmp.])],
3039 [[#ifdef HAVE_LIBPNG_PNG_H
3040 # include <libpng/png.h>
3051 if test "${with_zlib}" != "no"; then
3053 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3055 case $ac_cv_search_inflateEnd in
3056 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3059 if test "${HAVE_ZLIB}" = "yes"; then
3060 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3061 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3062 if test "${opsys}" = "mingw32"; then
3069 ### Use -ltiff if available, unless `--with-tiff=no'.
3070 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3073 if test "${opsys}" = "mingw32"; then
3074 if test "${with_tiff}" != "no"; then
3075 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3077 if test "${HAVE_TIFF}" = "yes"; then
3078 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3080 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3081 if test "${with_tiff}" != "no"; then
3082 AC_CHECK_HEADER(tiffio.h,
3084 # At least one tiff package requires the jpeg library.
3085 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3086 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3089 if test "${HAVE_TIFF}" = "yes"; then
3090 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3091 dnl FIXME -lz -lm, as per libpng?
3097 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3098 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3101 if test "${opsys}" = "mingw32"; then
3102 if test "${with_gif}" != "no"; then
3103 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3105 if test "${HAVE_GIF}" = "yes"; then
3106 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3108 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3109 || test "${HAVE_W32}" = "yes"; then
3110 AC_CHECK_HEADER(gif_lib.h,
3111 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3112 # Earlier versions can crash Emacs.
3113 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3115 if test "$HAVE_GIF" = yes; then
3117 elif test "$HAVE_GIF" = maybe; then
3118 # If gif_lib.h but no libgif, try libungif.
3119 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3120 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3123 if test "${HAVE_GIF}" = "yes"; then
3124 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3129 dnl Check for required libraries.
3130 if test "${HAVE_X11}" = "yes"; then
3133 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3134 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3135 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3136 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3137 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3138 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3139 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3140 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3141 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3142 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3144 if test "X${MISSING}" != X; then
3145 AC_MSG_ERROR([The following required libraries were not found:
3147 Maybe some development libraries/packages are missing?
3148 If you don't want to link with them give
3150 as options to configure])
3154 ### Use -lgpm if available, unless `--with-gpm=no'.
3157 if test "${with_gpm}" != "no"; then
3158 AC_CHECK_HEADER(gpm.h,
3159 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3161 if test "${HAVE_GPM}" = "yes"; then
3162 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3168 dnl Check for malloc/malloc.h on darwin
3169 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3172 ### Use NeXTstep API to implement GUI.
3173 if test "${HAVE_NS}" = "yes"; then
3174 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3175 if test "${NS_IMPL_COCOA}" = "yes"; then
3176 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3178 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3179 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3180 # See also .m.o rule in Makefile.in */
3181 # FIXME: are all these flags really needed? Document here why. */
3182 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3183 ## Extra CFLAGS applied to src/*.m files.
3184 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3186 # We also have mouse menus.
3191 if test "${HAVE_W32}" = "yes"; then
3195 ### Use session management (-lSM -lICE) if available
3198 if test "${HAVE_X11}" = "yes"; then
3199 AC_CHECK_HEADER(X11/SM/SMlib.h,
3200 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3202 if test "${HAVE_X_SM}" = "yes"; then
3203 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3207 *) LIBS="$LIBXSM $LIBS" ;;
3213 ### Use XRandr (-lXrandr) if available
3215 if test "${HAVE_X11}" = "yes"; then
3216 XRANDR_REQUIRED=1.2.2
3217 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3218 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3219 if test $HAVE_XRANDR = no; then
3220 # Test old way in case pkg-config doesn't have it (older machines).
3221 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3222 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3223 if test $HAVE_XRANDR = yes; then
3224 XRANDR_LIBS=-lXrandr
3225 AC_SUBST(XRANDR_LIBS)
3228 if test $HAVE_XRANDR = yes; then
3229 SAVE_CFLAGS="$CFLAGS"
3231 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3232 LIBS="$XRANDR_LIBS $LIBS"
3233 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3234 CFLAGS="$SAVE_CFLAGS"
3237 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3241 ### Use Xinerama (-lXinerama) if available
3243 if test "${HAVE_X11}" = "yes"; then
3244 XINERAMA_REQUIRED=1.0.2
3245 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3246 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3248 if test $HAVE_XINERAMA = no; then
3249 # Test old way in case pkg-config doesn't have it (older machines).
3250 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3251 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3252 if test $HAVE_XINERAMA = yes; then
3253 XINERAMA_LIBS=-lXinerama
3254 AC_SUBST(XINERAMA_LIBS)
3257 if test $HAVE_XINERAMA = yes; then
3258 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3263 ### Use libxml (-lxml2) if available
3264 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3266 if test "${with_xml2}" != "no"; then
3267 ### I'm not sure what the version number should be, so I just guessed.
3268 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3269 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3270 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3271 SAVE_CPPFLAGS="$CPPFLAGS"
3272 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3273 AC_CHECK_HEADER(libxml/HTMLparser.h,
3274 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3275 [#include <libxml/HTMLparser.h>])])
3276 CPPFLAGS="$SAVE_CPPFLAGS"
3277 if test "${HAVE_LIBXML2}" = "yes"; then
3278 LIBXML2_LIBS="-lxml2"
3279 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3282 if test "${HAVE_LIBXML2}" = "yes"; then
3283 if test "${opsys}" != "mingw32"; then
3284 LIBS="$LIBXML2_LIBS $LIBS"
3285 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3289 if test "${HAVE_LIBXML2}" = "yes"; then
3290 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3297 AC_SUBST(LIBXML2_LIBS)
3298 AC_SUBST(LIBXML2_CFLAGS)
3300 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3301 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3302 if test "${opsys}" = "mingw32"; then
3303 emacs_cv_netdb_declares_h_errno=yes
3305 AC_CACHE_CHECK(whether netdb declares h_errno,
3306 emacs_cv_netdb_declares_h_errno,
3307 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3308 [[return h_errno;]])],
3309 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3310 if test $emacs_cv_netdb_declares_h_errno = yes; then
3311 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3314 # sqrt and other floating-point functions such as fmod and frexp
3315 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3316 if test "${opsys}" != "mingw32"; then
3317 AC_CHECK_LIB(m, sqrt)
3320 # Check for mail-locking functions in a "mail" library. Probably this should
3321 # have the same check as for liblockfile below.
3322 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3323 if test $have_mail = yes; then
3325 LIBS="$LIBS_MAIL $LIBS"
3326 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3330 dnl Debian, at least:
3331 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3332 if test $have_lockfile = yes; then
3333 LIBS_MAIL=-llockfile
3334 LIBS="$LIBS_MAIL $LIBS"
3335 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3337 # If we have the shared liblockfile, assume we must use it for mail
3338 # locking (e.g. Debian). If we couldn't link against liblockfile
3339 # (no liblockfile.a installed), ensure that we don't need to.
3340 dnl This works for files generally, not just executables.
3341 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3342 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3343 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3344 if test $ac_cv_prog_liblockfile = yes; then
3345 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3346 This probably means that movemail could lose mail.
3347 There may be a `development' package to install containing liblockfile.])
3350 AC_CHECK_HEADERS_ONCE(maillock.h)
3353 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3354 ## interlock access to the mail spool. The alternative is a lock file named
3355 ## /usr/spool/mail/$USER.lock.
3358 aix4-2) mail_lock="lockf" ;;
3360 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3362 ## On GNU/Linux systems, both methods are used by various mail programs.
3363 ## I assume most people are using newer mailers that have heard of flock.
3364 ## Change this if you need to.
3365 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3366 ## configure gets the right answers, and that means *NOT* using flock.
3367 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3368 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3369 ## Debian maintainer hasn't provided a clean fix for Emacs.
3370 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3371 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3372 ## correct logic. -- fx
3373 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3374 ## liblockfile is a Free Software replacement for libmail, used on
3375 ## Debian systems and elsewhere. -rfr.
3378 if test $have_mail = yes || test $have_lockfile = yes; then
3379 test $ac_cv_header_maillock_h = yes && mail_lock=no
3384 mail_lock="none-needed" ;;
3388 case "$mail_lock" in
3389 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3391 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3395 *) BLESSMAIL_TARGET="need-blessmail" ;;
3397 AC_SUBST(BLESSMAIL_TARGET)
3400 AC_CHECK_FUNCS(accept4 gethostname \
3401 getrusage get_current_dir_name \
3403 select getpagesize setlocale \
3404 getrlimit setrlimit shutdown getaddrinfo \
3405 strsignal setitimer \
3406 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3407 gai_strerror getline getdelim sync \
3408 difftime posix_memalign \
3409 getpwent endpwent getgrent endgrent \
3411 cfmakeraw cfsetspeed copysign __executable_start log2)
3413 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3414 ## has a broken `rint' in some library versions including math library
3415 ## version number A.09.05.
3416 ## You can fix the math library by installing patch number PHSS_4630.
3417 ## But we can fix it more reliably for Emacs by just not using rint.
3418 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3421 *) AC_CHECK_FUNCS(random rint) ;;
3424 dnl Cannot use AC_CHECK_FUNCS
3425 AC_CACHE_CHECK([for __builtin_unwind_init],
3426 emacs_cv_func___builtin_unwind_init,
3427 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3428 emacs_cv_func___builtin_unwind_init=yes,
3429 emacs_cv_func___builtin_unwind_init=no)])
3430 if test $emacs_cv_func___builtin_unwind_init = yes; then
3431 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3432 [Define to 1 if you have the `__builtin_unwind_init' function.])
3435 AC_CHECK_HEADERS_ONCE(sys/un.h)
3440 AC_CHECK_FUNCS(grantpt)
3442 # PTY-related GNU extensions.
3443 AC_CHECK_FUNCS(getpt posix_openpt)
3445 # Check this now, so that we will NOT find the above functions in ncurses.
3446 # That is because we have not set up to link ncurses in lib-src.
3447 # It's better to believe a function is not available
3448 # than to expect to find it in ncurses.
3449 # Also we need tputs and friends to be able to build at all.
3450 AC_MSG_CHECKING([for library containing tputs])
3451 # Run a test program that contains a call to tputs, a call that is
3452 # never executed. This tests whether a pre-'main' dynamic linker
3453 # works with the library. It's too much trouble to actually call
3454 # tputs in the test program, due to portability hassles. When
3455 # cross-compiling, assume the test program will run if it links.
3456 AC_DEFUN([tputs_link_source], [
3458 [[extern void tputs (const char *, int, int (*)(int));
3459 int main (int argc, char **argv)
3462 tputs (argv[0], 0, 0);
3466 if test "${opsys}" = "mingw32"; then
3469 # Maybe curses should be tried earlier?
3470 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3471 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3473 if test -z "$tputs_library"; then
3477 LIBS_TERMCAP=-l$tputs_library
3479 LIBS="$LIBS_TERMCAP $LIBS"
3481 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3482 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3484 if test "X$msg" != Xno; then
3489 AC_MSG_RESULT([$msg])
3490 if test "X$msg" = Xno; then
3491 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3492 The following libraries were tried (in order):
3493 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3494 Please try installing whichever of these libraries is most appropriate
3495 for your system, together with its header files.
3496 For example, a libncurses-dev(el) or similar package.])
3499 ## Use termcap instead of terminfo?
3500 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3502 ## FIXME? In the cases below where we unconditionally set
3503 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3504 ## if that was found above to have tputs.
3505 ## Should we use the gnu* logic everywhere?
3507 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3508 ## The ncurses library has been moved out of the System framework in
3509 ## Mac OS X 10.2. So if configure detects it, set the command-line
3510 ## option to use it.
3511 darwin) LIBS_TERMCAP="-lncurses" ;;
3513 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3516 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3517 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3518 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3519 [[#if __FreeBSD_version < 400000
3522 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3524 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3526 if test $emacs_cv_freebsd_terminfo = yes; then
3527 LIBS_TERMCAP="-lncurses"
3530 LIBS_TERMCAP="-ltermcap"
3540 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3542 LIBS_TERMCAP="-ltermcap"
3546 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3548 ## hpux: Make sure we get select from libc rather than from libcurses
3549 ## because libcurses on HPUX 10.10 has a broken version of select.
3550 ## We used to use -lc -lcurses, but this may be cleaner.
3551 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3552 # set that way, now it uses the default). Isn't this a contradiction?
3553 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3557 TERMCAP_OBJ=tparam.o
3558 if test $TERMINFO = yes; then
3559 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3560 TERMCAP_OBJ=terminfo.o
3562 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3563 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3565 AC_SUBST(LIBS_TERMCAP)
3566 AC_SUBST(TERMCAP_OBJ)
3569 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3570 # On Darwin, res_init appears not to be useful: see bug#562 and
3571 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3574 if test $opsys != darwin; then
3576 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3577 #include <arpa/nameser.h>
3578 #include <resolv.h>]],
3579 [[return res_init();]])],
3580 have_res_init=yes, have_res_init=no)
3581 if test "$have_res_init" = no; then
3583 LIBS="$LIBS -lresolv"
3584 AC_MSG_CHECKING(for res_init with -lresolv)
3585 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3586 #include <arpa/nameser.h>
3587 #include <resolv.h>]],
3588 [[return res_init();]])],
3589 have_res_init=yes, have_res_init=no)
3590 AC_MSG_RESULT($have_res_init)
3591 if test "$have_res_init" = yes ; then
3597 if test "$have_res_init" = yes; then
3598 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3602 # Do we need the Hesiod library to provide the support routines?
3603 dnl FIXME? Should we be skipping this on Darwin too?
3605 if test "$with_hesiod" != no ; then
3606 # Don't set $LIBS here -- see comments above. FIXME which comments?
3607 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3608 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3609 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3610 if test "$resolv" = yes ; then
3615 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3616 hesiod=yes, :, $RESOLVLIB)])
3618 if test x"$hesiod" = xyes; then
3624 # Do we need libresolv (due to res_init or Hesiod)?
3625 if test "$resolv" = yes && test $opsys != darwin; then
3632 # These tell us which Kerberos-related libraries to use.
3639 if test "${with_kerberos}" != no; then
3640 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3641 if test $have_com_err = yes; then
3642 COM_ERRLIB=-lcom_err
3643 LIBS="$COM_ERRLIB $LIBS"
3645 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3646 if test $have_crypto = yes; then
3648 LIBS="$CRYPTOLIB $LIBS"
3650 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3651 if test $have_k5crypto = yes; then
3652 CRYPTOLIB=-lk5crypto
3653 LIBS="$CRYPTOLIB $LIBS"
3655 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3656 if test $have_krb5=yes; then
3658 LIBS="$KRB5LIB $LIBS"
3660 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3661 if test "${with_kerberos5}" = no; then
3662 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3663 if test $have_des425 = yes; then
3665 LIBS="$DESLIB $LIBS"
3667 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3668 if test $have_des = yes; then
3670 LIBS="$DESLIB $LIBS"
3673 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3674 if test $have_krb4 = yes; then
3676 LIBS="$KRB4LIB $LIBS"
3678 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3679 if test $have_krb = yes; then
3681 LIBS="$KRB4LIB $LIBS"
3686 if test "${with_kerberos5}" != no; then
3687 AC_CHECK_HEADERS(krb5.h,
3688 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3689 [#include <krb5.h>])])
3691 AC_CHECK_HEADERS(krb.h,,
3692 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3693 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3695 AC_CHECK_HEADERS(com_err.h)
3698 AC_SUBST(COM_ERRLIB)
3704 AC_CHECK_FUNCS_ONCE(tzset)
3705 AC_MSG_CHECKING(whether localtime caches TZ)
3706 AC_CACHE_VAL(emacs_cv_localtime_cache,
3707 [if test x$ac_cv_func_tzset = xyes; then
3708 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3709 char TZ_GMT0[] = "TZ=GMT0";
3710 char TZ_PST8[] = "TZ=PST8";
3713 time_t now = time ((time_t *) 0);
3714 int hour_GMT0, hour_unset;
3715 if (putenv (TZ_GMT0) != 0)
3717 hour_GMT0 = localtime (&now)->tm_hour;
3719 hour_unset = localtime (&now)->tm_hour;
3720 if (putenv (TZ_PST8) != 0)
3722 if (localtime (&now)->tm_hour == hour_GMT0)
3725 if (localtime (&now)->tm_hour != hour_unset)
3728 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3729 [# If we have tzset, assume the worst when cross-compiling.
3730 emacs_cv_localtime_cache=yes])
3732 # If we lack tzset, report that localtime does not cache TZ,
3733 # since we can't invalidate the cache if we don't have tzset.
3734 emacs_cv_localtime_cache=no
3736 AC_MSG_RESULT($emacs_cv_localtime_cache)
3737 if test $emacs_cv_localtime_cache = yes; then
3738 AC_DEFINE(LOCALTIME_CACHE, 1,
3739 [Define to 1 if localtime caches TZ.])
3743 AC_CHECK_FUNC(socket, , ok_so_far=no)
3744 if test $ok_so_far = yes; then
3745 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3747 if test $ok_so_far = yes; then
3748 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3750 if test $ok_so_far = yes; then
3751 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3752 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3753 [Define to 1 if you have inet sockets.])
3756 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3757 dnl This can be removed once we assume Autoconf 2.70.
3759 *-solaris2.4 | *-solaris2.4.*)
3760 dnl Disable the Autoconf-generated vfork test.
3761 : ${ac_cv_func_vfork_works=no};;
3766 AC_CHECK_FUNCS(snprintf)
3768 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3771 AC_MSG_CHECKING([whether GLib is linked in])
3772 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3775 [[g_print ("Hello world");]])],
3778 AC_MSG_RESULT([$links_glib])
3779 if test "${links_glib}" = "yes"; then
3780 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3781 if test "$HAVE_NS" = no;then
3787 dnl Adapted from Haible's version.
3788 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3789 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3790 [[char* cs = nl_langinfo(CODESET);]])],
3791 emacs_cv_langinfo_codeset=yes,
3792 emacs_cv_langinfo_codeset=no)
3794 if test $emacs_cv_langinfo_codeset = yes; then
3795 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3796 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3801 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3802 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3803 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3804 if test "$emacs_cv_c_restrict_arr" = yes; then
3805 AC_DEFINE(__restrict_arr, __restrict,
3806 [Define to compiler's equivalent of C99 restrict keyword in array
3807 declarations. Define as empty for no equivalent.])
3810 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3811 dnl how the tty code is related to POSIX and/or other versions of termios.
3812 dnl The following looks like a useful start.
3814 dnl AC_SYS_POSIX_TERMIOS
3815 dnl if test $ac_cv_sys_posix_termios = yes; then
3816 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3817 dnl and macros for terminal control.])
3818 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3821 dnl Turned on June 1996 supposing nobody will mind it.
3822 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3823 if test "${opsys}" != "mingw32"; then
3824 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3825 in the full name stands for the login id.])
3828 dnl Every platform that uses configure supports this.
3829 dnl There is a create-lockfiles option you can
3830 dnl customize if you do not want the lock files to be written.
3831 dnl So it is not clear that this #define still needs to exist.
3832 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3833 so that Emacs can tell instantly when you try to modify a file that
3834 someone else has modified in his/her Emacs.])
3836 dnl Everybody supports this, except MS.
3837 dnl Seems like the kind of thing we should be testing for, though.
3838 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3839 if test "${opsys}" != "mingw32"; then
3840 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3843 dnl Everybody supports this, except MS-DOS.
3844 dnl Seems like the kind of thing we should be testing for, though.
3845 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3846 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3847 4.2-compatible sockets.])
3849 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3851 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3852 a null file, or a data sink.])
3853 if test "${opsys}" = "mingw32"; then
3854 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3856 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3859 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3860 if test "${opsys}" = "mingw32"; then
3861 AC_DEFINE(SEPCHAR, [';'])
3863 AC_DEFINE(SEPCHAR, [':'])
3866 dnl Everybody supports this, except MS-DOS.
3867 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3869 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3872 AC_DEFINE(DIRECTORY_SEP, ['/'],
3873 [Character that separates directories in a file name.])
3875 if test "${opsys}" = "mingw32"; then
3876 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3877 [Returns true if character is a device separator.])
3879 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3880 [Returns true if character is a directory separator.])
3882 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3883 [Returns true if character is any form of separator.])
3885 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3886 [Returns true if character is a device separator.])
3888 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3889 [Returns true if character is a directory separator.])
3891 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3892 [Returns true if character is any form of separator.])
3895 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3899 dnl Unfortunately without libXmu we cannot support EditRes.
3900 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3901 AC_DEFINE(NO_EDITRES, 1)
3906 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3907 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3908 AC_DEFINE(NO_EDITRES, 1)
3914 irix6-5 | sol2* | unixware )
3915 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3916 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3917 dnl need the constant to dimension an array. So wire in the appropriate
3919 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3923 emacs_broken_SIGIO=no
3926 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3927 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3928 hpux* | irix6-5 | openbsd | sol2* | unixware )
3929 emacs_broken_SIGIO=yes
3933 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3934 dnl the way this system works, libc functions that return malloced
3935 dnl memory use the libc malloc implementation. Calling xfree or
3936 dnl xrealloc on the results of such functions results in a crash.
3938 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3939 dnl but that does not currently work on this system.
3941 dnl It is possible to completely override the malloc implementation on
3942 dnl AIX, but that involves putting the malloc functions in a shared
3943 dnl library and setting the MALLOCTYPE environment variable to point to
3944 dnl that shared library.
3946 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3947 dnl to avoid a crash just use the Emacs implementation for that function.
3949 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3950 dnl of this file, so that we do not check for get_current_dir_name
3951 dnl on AIX. But that might be fragile if something else ends
3952 dnl up testing for get_current_dir_name as a dependency.
3953 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3954 get_current_dir_name should not be used.])
3958 dnl Circumvent a bug in FreeBSD. In the following sequence of
3959 dnl writes/reads on a PTY, read(2) returns bogus data:
3961 dnl write(2) 1022 bytes
3962 dnl write(2) 954 bytes, get EAGAIN
3963 dnl read(2) 1024 bytes in process_read_output
3964 dnl read(2) 11 bytes in process_read_output
3966 dnl That is, read(2) returns more bytes than have ever been written
3967 dnl successfully. The 1033 bytes read are the 1022 bytes written
3968 dnl successfully after processing (for example with CRs added if the
3969 dnl terminal is set up that way which it is here). The same bytes will
3970 dnl be seen again in a later read(2), without the CRs.
3971 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3972 work around an issue when reading from a PTY.])
3978 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3979 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3984 darwin | dragonfly | freebsd | netbsd | openbsd )
3985 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3986 close a pty to make it a controlling terminal (it is already a
3987 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3991 dnl FIXME Surely we can test for this rather than hard-code it.
3993 netbsd | openbsd) sound_device="/dev/audio" ;;
3994 *) sound_device="/dev/dsp" ;;
3998 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3999 [Name of the default sound device.])
4002 dnl Emacs can read input using SIGIO and buffering characters itself,
4003 dnl or using CBREAK mode and making C-g cause SIGINT.
4004 dnl The choice is controlled by the variable interrupt_input.
4006 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4008 dnl Emacs uses the presence of the USABLE_SIGIO macro
4009 dnl to indicate whether or not signal-driven I/O is possible. It uses
4010 dnl INTERRUPT_INPUT to decide whether to use it by default.
4012 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4013 dnl CBREAK mode has two disadvantages
4014 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4015 dnl I hear that in system V this problem does not exist.
4016 dnl 2) Control-G causes output to be discarded.
4017 dnl I do not know whether this can be fixed in system V.
4019 dnl Another method of doing input is planned but not implemented.
4020 dnl It would have Emacs fork off a separate process
4021 dnl to read the input and send it to the true Emacs process
4024 darwin | gnu-linux | gnu-kfreebsd )
4025 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4030 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4031 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4032 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4033 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4034 dnl taking float or double parameters.
4036 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4037 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4038 file defines `NeedWidePrototypes' as `NO'.])
4043 dnl Used in process.c, this must be a loop, even if it only runs once.
4044 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4045 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4046 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4047 dnl trying suffixes 0-16.
4048 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4049 first PTY, if PTYs are supported.])
4050 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4051 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4052 end of a PTY, if non-standard.])
4053 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4054 end of a PTY, if non-standard.])
4058 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4059 dnl You allocate a pty by opening /dev/ptc to get the master side.
4060 dnl To get the name of the slave side, you just ttyname() the master side.
4061 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4062 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4066 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4067 dnl multi-line AC_DEFINEs are hard. :(
4068 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)])
4069 AC_DEFINE(PTY_NAME_SPRINTF, [])
4070 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4073 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4075 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4076 dnl Not used, because PTY_ITERATION is defined.
4077 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4078 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4079 dnl But we don't have to block SIGCHLD because it is blocked in the
4080 dnl implementation of grantpt.
4081 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4082 AC_DEFINE(PTY_NAME_SPRINTF, [])
4083 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4087 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4090 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4092 if test "x$ac_cv_func_grantpt" = xyes; then
4093 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4094 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4095 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4096 dnl to prevent sigchld_handler from intercepting the child's death.
4097 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); }])
4098 dnl if HAVE_POSIX_OPENPT
4099 if test "x$ac_cv_func_posix_openpt" = xyes; then
4100 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4101 AC_DEFINE(PTY_NAME_SPRINTF, [])
4103 elif test "x$ac_cv_func_getpt" = xyes; then
4104 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4105 AC_DEFINE(PTY_NAME_SPRINTF, [])
4107 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4110 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4115 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4116 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4117 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4121 dnl It looks like this cannot be right, because it is not a loop.
4122 dnl However, process.c actually does this:
4128 dnl which presumably makes it OK, since irix == sgi (?).
4129 dnl FIXME it seems like this special treatment is unnecessary?
4130 dnl Why can't irix use a single-trip loop like eg cygwin?
4131 AC_DEFINE(PTY_ITERATION, [])
4132 dnl Not used, because PTY_ITERATION is defined.
4133 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4134 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); }])
4135 dnl No need to get the pty name at all.
4136 AC_DEFINE(PTY_NAME_SPRINTF, [])
4137 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4138 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4142 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4143 dnl from intercepting that death. If any child but grantpt's should die
4144 dnl within, it should be caught after sigrelse(2).
4145 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4149 dnl Comments are as per sol2*.
4150 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); }])
4157 dnl This change means that we don't loop through allocate_pty too
4158 dnl many times in the (rare) event of a failure.
4159 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4160 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4161 dnl Push various streams modules onto a PTY channel. Used in process.c.
4162 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.])
4167 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4168 "typing" a signal character on the pty.])
4171 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4172 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4173 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4174 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4177 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4178 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4179 gnu-linux | gnu-kfreebsd )
4181 AC_MSG_CHECKING([for signals via characters])
4182 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4183 #include <linux/version.h>
4184 #if LINUX_VERSION_CODE < 0x20400
4185 # error "Linux version too old"
4187 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4189 AC_MSG_RESULT([$emacs_signals_via_chars])
4190 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4195 dnl Used in lisp.h, emacs.c, vm-limit.c
4196 dnl NEWS.18 describes this as "a number which contains
4197 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4198 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4199 stored in a Lisp_Object.])
4200 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4204 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4205 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4208 dnl The data segment on this machine always starts at address 0x40000000.
4209 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4212 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4217 AH_TEMPLATE(TAB3, [Undocumented.])
4220 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4222 gnu | dragonfly | freebsd | netbsd | openbsd )
4223 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4224 AC_DEFINE(TAB3, OXTABS)
4227 gnu-linux | gnu-kfreebsd )
4228 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4232 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4233 [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)],
4234 [Mark a secondary stack, like the register stack on the ia64.]), [])
4238 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4239 run_time_remap; for HPUX.])
4244 dnl This won't be used automatically yet. We also need to know, at least,
4245 dnl that the stack is continuous.
4246 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4247 registers relevant for conservative garbage collection in the jmp_buf.])
4251 dnl Not all the architectures are tested, but there are Debian packages
4252 dnl for SCM and/or Guile on them, so the technique must work. See also
4253 dnl comments in alloc.c concerning setjmp and gcc.
4254 dnl Fixme: it's probably safe to just use the GCC conditional below.
4255 gnu-linux | gnu-kfreebsd )
4256 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4257 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4258 || defined __alpha__ || defined __mips__ || defined __s390__ \
4259 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4260 || defined __ia64__ || defined __sh__
4263 # error "setjmp not known to work on this arch"
4265 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4270 if test x$GCC = xyes; then
4271 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4272 AC_DEFINE(GC_SETJMP_WORKS, 1)
4275 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4276 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4277 AC_DEFINE(GC_SETJMP_WORKS, 1)
4282 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4283 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4286 [[#include <setjmp.h>
4288 # define _longjmp longjmp
4293 _longjmp (j, 1);]])],
4294 [emacs_cv_func__setjmp=yes],
4295 [emacs_cv_func__setjmp=no])])
4296 if test $emacs_cv_func__setjmp = yes; then
4297 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4299 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4302 [[#include <setjmp.h>
4305 if (! sigsetjmp (j, 1))
4306 siglongjmp (j, 1);]])],
4307 [emacs_cv_func_sigsetjmp=yes],
4308 [emacs_cv_func_sigsetjmp=no])])
4309 if test $emacs_cv_func_sigsetjmp = yes; then
4310 AC_DEFINE([HAVE_SIGSETJMP], 1,
4311 [Define to 1 if sigsetjmp and siglongjmp work.
4312 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4318 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4319 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4320 dnl and this is all we need.
4321 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4328 dnl Used in xfaces.c.
4329 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4330 some systems, where it requires time.h.])
4335 dnl Define symbols to identify the version of Unix this is.
4336 dnl Define all the symbols that apply correctly.
4337 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4338 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4339 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4340 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4345 dnl This symbol should be defined on AIX Version 3 ???????
4346 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4348 # error "_AIX not defined"
4350 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4354 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4358 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4359 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4360 dnl distinguish OS X from pure Darwin.
4361 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4364 gnu-linux | gnu-kfreebsd )
4366 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4371 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4376 AC_DEFINE(USG5_4, [])
4377 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4381 AC_DEFINE(DOS_NT, [])
4382 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4383 if test "x$ac_enable_checking" != "x" ; then
4384 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4390 AC_DEFINE(USG5_4, [])
4391 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4396 AC_DEFINE(USG5_4, [])
4400 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4403 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4404 emacs_cv_usable_FIONREAD=no
4408 emacs_cv_usable_FIONREAD=yes
4413 [AC_LANG_PROGRAM([[#include <sys/types.h>
4414 #include <sys/ioctl.h>
4416 # include <sys/filio.h>
4419 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4420 [emacs_cv_usable_FIONREAD=yes],
4421 [emacs_cv_usable_FIONREAD=no])
4424 if test $emacs_cv_usable_FIONREAD = yes; then
4425 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4427 if test $emacs_broken_SIGIO = no; then
4428 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4430 [AC_LANG_PROGRAM([[#include <fcntl.h>
4433 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4434 [emacs_cv_usable_SIGIO=yes],
4435 [emacs_cv_usable_SIGIO=no])],
4436 [emacs_cv_usable_SIGIO=yes],
4437 [emacs_cv_usable_SIGIO=no])
4438 if test $emacs_cv_usable_SIGIO = yes; then
4439 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4446 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4447 dnl and on Cygwin prior to version 1.7.24 that becomes the
4448 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4449 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4450 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4451 dnl needed starting with cygwin-1.7.24, and it is no longer
4452 dnl effective starting with glib-2.36. */
4454 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4455 G_SLICE environment variable to "always-malloc" at startup.])
4459 dnl It works to open the pty's tty in the parent (Emacs), then
4460 dnl close and reopen it in the child.
4461 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4462 works to open a pty's tty in the parent process, then close and
4463 reopen it in the child.])
4467 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4468 use VSUSP instead of VSWTCH.])
4472 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4477 # Set up the CFLAGS for real compilation, so we can substitute it.
4478 CFLAGS="$REAL_CFLAGS"
4479 CPPFLAGS="$REAL_CPPFLAGS"
4481 ## Hack to detect a buggy GCC version.
4482 if test "x$GCC" = xyes \
4483 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4484 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4485 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4486 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4489 version=$PACKAGE_VERSION
4491 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4492 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4493 [Short copyright string for this version of Emacs.])
4496 ### Specify what sort of things we'll be editing into Makefile and config.h.
4497 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4499 AC_SUBST(configuration)
4504 AC_SUBST(exec_prefix)
4507 AC_SUBST(sharedstatedir)
4508 AC_SUBST(libexecdir)
4513 AC_SUBST(standardlisppath)
4514 AC_SUBST(locallisppath)
4516 AC_SUBST(x_default_search_path)
4518 AC_SUBST(archlibdir)
4523 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4524 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4525 ## end of LIBX_BASE, but nothing ever set it.
4526 AC_SUBST(LD_SWITCH_X_SITE)
4527 AC_SUBST(C_SWITCH_X_SITE)
4528 AC_SUBST(GNUSTEP_CFLAGS)
4530 ## Used in lwlib/Makefile.in.
4531 AC_SUBST(X_TOOLKIT_TYPE)
4533 AC_SUBST(ns_appbindir)
4534 AC_SUBST(ns_appresdir)
4536 AC_SUBST(GNU_OBJC_CFLAGS)
4537 AC_SUBST(OTHER_FILES)
4539 if test -n "${term_header}"; then
4540 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4541 [Define to the header for the built-in window system.])
4544 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4545 [Define to the canonical Emacs configuration name.])
4546 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4547 [Define to the options passed to configure.])
4548 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4549 define this to include extra configuration information.])
4553 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4560 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4561 AC_DEFINE(HAVE_X_WINDOWS, 1,
4562 [Define to 1 if you want to use the X window system.])
4564 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4566 if test "$HAVE_XFT" = "yes"; then
4567 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4568 elif test "$HAVE_FREETYPE" = "yes"; then
4569 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4579 if test "${USE_X_TOOLKIT}" != "none" ; then
4581 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4582 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4583 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4584 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4585 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4589 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4590 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4594 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4595 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4596 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4600 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4601 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4604 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4607 AC_SUBST(WIDGET_OBJ)
4610 case "$USE_X_TOOLKIT" in
4611 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4612 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4613 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS -lXcomposite" ;;
4615 AC_SUBST(TOOLKIT_LIBW)
4617 if test "${opsys}" != "mingw32"; then
4618 if test "$USE_X_TOOLKIT" = "none"; then
4619 LIBXT_OTHER="\$(LIBXSM)"
4620 OLDXMENU_TARGET="really-oldXMenu"
4622 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4623 OLDXMENU_TARGET="really-lwlib"
4626 AC_SUBST(LIBXT_OTHER)
4628 ## The X Menu stuff is present in the X10 distribution, but missing
4629 ## from X11. If we have X10, just use the installed library;
4630 ## otherwise, use our own copy.
4631 if test "${HAVE_X11}" = "yes" ; then
4632 AC_DEFINE(HAVE_X11, 1,
4633 [Define to 1 if you want to use version 11 of X windows.
4634 Otherwise, Emacs expects to use version 10.])
4636 if test "$USE_X_TOOLKIT" = "none"; then
4637 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4639 OLDXMENU="\${lwlibdir}/liblw.a"
4641 LIBXMENU="\$(OLDXMENU)"
4642 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4643 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4645 ## For a syntactically valid Makefile; not actually used for anything.
4646 ## See comments in src/Makefile.in.
4648 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4649 if test "${HAVE_X_WINDOWS}" = "yes"; then
4658 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4665 AC_SUBST(OLDXMENU_TARGET)
4668 AC_SUBST(LIBX_OTHER)
4669 AC_SUBST(OLDXMENU_DEPS)
4671 if test "${HAVE_MENUS}" = "yes" ; then
4672 AC_DEFINE(HAVE_MENUS, 1,
4673 [Define to 1 if you have mouse menus.
4674 (This is automatic if you use X, but the option to specify it remains.)
4675 It is also defined with other window systems that support xmenu.c.])
4678 if test "${GNU_MALLOC}" = "yes" ; then
4679 AC_DEFINE(GNU_MALLOC, 1,
4680 [Define to 1 if you want to use the GNU memory allocator.])
4684 if test "${REL_ALLOC}" = "yes" ; then
4685 AC_DEFINE(REL_ALLOC, 1,
4686 [Define REL_ALLOC if you want to use the relocating allocator for
4689 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4691 AC_SUBST(RALLOC_OBJ)
4693 if test "$opsys" = "cygwin"; then
4694 CYGWIN_OBJ="sheap.o cygw32.o"
4695 ## Cygwin differs because of its unexec().
4697 POST_ALLOC_OBJ=lastfile.o
4698 elif test "$opsys" = "mingw32"; then
4701 POST_ALLOC_OBJ=lastfile.o
4704 PRE_ALLOC_OBJ=lastfile.o
4707 AC_SUBST(CYGWIN_OBJ)
4708 AC_SUBST(PRE_ALLOC_OBJ)
4709 AC_SUBST(POST_ALLOC_OBJ)
4711 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4712 # it temporarily reverts them to their pre-pkg-config values,
4713 # because gnulib needs to work with both src (which uses the
4714 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4715 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4716 # and it therefore needs to run in an environment where LIBS does not
4717 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4718 # for some package unrelated to lib-src.
4721 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4722 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4723 gl_ASSERT_NO_GNULIB_POSIXCHECK
4724 gl_ASSERT_NO_GNULIB_TESTS
4729 if test "${opsys}" = "mingw32"; then
4730 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4731 # Remove unneeded switches from the value of CC that goes to Makefiles
4732 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4736 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4739 ## The -headerpad option tells ld (see man page) to leave room at the
4740 ## end of the header for adding load commands. Needed for dumping.
4741 ## 0x690 is the total size of 30 segment load commands (at 56
4742 ## each); under Cocoa 31 commands are required.
4743 if test "$HAVE_NS" = "yes"; then
4744 libs_nsgui="-framework AppKit"
4745 if test "$NS_IMPL_COCOA" = "yes"; then
4746 libs_nsgui="$libs_nsgui -framework IOKit"
4753 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4755 ## This is here because src/Makefile.in did some extra fiddling around
4756 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4757 ## LD_SWITCH_SYSTEM_TEMACS instead,
4758 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4759 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4762 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4763 ## find X at run-time.
4764 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4765 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4766 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4767 ## had different values in configure (in ac_link) and src/Makefile.in.
4768 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4769 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4772 ## MinGW64 does not prepend an underscore to symbols, so we must
4773 ## pass a different -entry switch to linker. FIXME: It is better
4774 ## to make the entry points the same by changing unexw32.c.
4775 case "$canonical" in
4776 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4777 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4781 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4783 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4786 if test x$ac_enable_profiling != x ; then
4788 *freebsd | gnu-linux) ;;
4789 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4793 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4795 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4797 ## MinGW-specific post-link processing of temacs.
4798 TEMACS_POST_LINK=":"
4801 if test "${opsys}" = "mingw32"; then
4802 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4803 ADDSECTION="../nt/addsection\$(EXEEXT)"
4804 ## Preload heap size of temacs.exe in MB.
4805 case "$canonical" in
4806 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4807 *) EMACS_HEAPSIZE=27 ;;
4811 AC_SUBST(ADDSECTION)
4812 AC_SUBST(TEMACS_POST_LINK)
4813 AC_SUBST(EMACS_HEAPSIZE)
4815 ## Common for all window systems
4816 if test "$window_system" != "none"; then
4817 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4818 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4821 AC_SUBST(WINDOW_SYSTEM_OBJ)
4823 AH_TOP([/* GNU Emacs site configuration template file.
4825 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4826 Free Software Foundation, Inc.
4828 This file is part of GNU Emacs.
4830 GNU Emacs is free software: you can redistribute it and/or modify
4831 it under the terms of the GNU General Public License as published by
4832 the Free Software Foundation, either version 3 of the License, or
4833 (at your option) any later version.
4835 GNU Emacs is distributed in the hope that it will be useful,
4836 but WITHOUT ANY WARRANTY; without even the implied warranty of
4837 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4838 GNU General Public License for more details.
4840 You should have received a copy of the GNU General Public License
4841 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4844 /* No code in Emacs #includes config.h twice, but some bits of code
4845 intended to work with other packages as well (like gmalloc.c)
4846 think they can include it as many times as they like. */
4847 #ifndef EMACS_CONFIG_H
4848 #define EMACS_CONFIG_H
4851 AH_BOTTOM([#include <conf_post.h>
4853 #endif /* EMACS_CONFIG_H */
4862 #### Report on what we decided to do.
4863 #### Report GTK as a toolkit, even if it doesn't use Xt.
4864 #### It makes printing result more understandable as using GTK sets
4865 #### toolkit_scroll_bars to yes by default.
4866 if test "${HAVE_GTK}" = "yes"; then
4867 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4870 if test $USE_ACL -ne 0; then
4871 acl_summary="yes $LIB_ACL"
4877 Configured for \`${canonical}'.
4879 Where should the build process find the source code? ${srcdir}
4880 What compiler should emacs be built with? ${CC} ${CFLAGS}
4881 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4882 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4883 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4884 What window system should Emacs use? ${window_system}
4885 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4887 if test -n "${x_includes}"; then
4888 echo " Where do we find X Windows header files? ${x_includes}"
4890 echo " Where do we find X Windows header files? Standard dirs"
4892 if test -n "${x_libraries}"; then
4893 echo " Where do we find X Windows libraries? ${x_libraries}"
4895 echo " Where do we find X Windows libraries? Standard dirs"
4898 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4899 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4900 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4901 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4902 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4903 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4904 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4905 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4907 echo " Does Emacs support sound? ${HAVE_SOUND}"
4909 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4910 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4911 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4912 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4913 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4914 echo " Does Emacs use access control lists? ${acl_summary}"
4915 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4916 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4917 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4919 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4920 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4921 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4922 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4923 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4925 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4927 echo " Does Emacs support Xwidgets? ${HAVE_XWIDGETS}"
4928 echo " Does xwidgets support webkit(requires gtk3)? ${HAVE_WEBKIT}"
4929 echo " Does xwidgets support gobject introspection? ${HAVE_GIR}"
4932 if test -n "${EMACSDATA}"; then
4933 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4935 if test -n "${EMACSDOC}"; then
4936 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4941 if test "$HAVE_NS" = "yes"; then
4943 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4944 The installed application will go to nextstep/Emacs.app and can be
4945 run or moved from there."
4946 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4947 echo "The application will be fully self-contained."
4949 echo "The lisp resources for the application will be installed under ${prefix}.
4950 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4951 to run if these resources are not installed."
4956 if test "${opsys}" = "cygwin"; then
4958 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4964 # Remove any trailing slashes in these variables.
4965 [test "${prefix}" != NONE &&
4966 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4967 test "${exec_prefix}" != NONE &&
4968 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4970 if test "$HAVE_NS" = "yes"; then
4971 if test "$NS_IMPL_GNUSTEP" = yes; then
4972 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4973 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4974 ns_check_file=Resources/Info-gnustep.plist
4976 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4977 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4978 ns_check_file=Contents/Info.plist
4980 AC_SUBST(ns_check_file)
4983 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4984 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4985 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4986 dnl (else you get "no `Makefile.am' found for any configure output").
4987 dnl This will work, but you get a config.status that is not quite right
4988 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4989 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4990 dnl it seems better to just live with the duplication.
4991 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4993 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4994 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4995 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4996 leim/Makefile nextstep/Makefile nt/Makefile])
4998 dnl test/ is not present in release tarfiles.
4999 opt_makefile=test/automated/Makefile
5001 if test -f "$srcdir/$opt_makefile.in"; then
5002 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5003 dnl Again, it's best not to use a variable. Though you can add
5004 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5005 AC_CONFIG_FILES([test/automated/Makefile])
5009 dnl admin/ may or may not be present.
5010 opt_makefile=admin/unidata/Makefile
5012 if test -f "$srcdir/$opt_makefile.in"; then
5013 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5014 AC_CONFIG_FILES([admin/unidata/Makefile])
5018 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5020 AC_SUBST(SUBDIR_MAKEFILES_IN)
5022 dnl You might wonder (I did) why epaths.h is generated by running make,
5023 dnl rather than just letting configure generate it from epaths.in.
5024 dnl One reason is that the various paths are not fully expanded (see above);
5025 dnl eg gamedir=${prefix}/var/games/emacs.
5026 dnl Secondly, the GNU Coding standards require that one should be able
5027 dnl to run `make prefix=/some/where/else' and override the values set
5028 dnl by configure. This also explains the `move-if-change' test and
5029 dnl the use of force in the `epaths-force' rule in Makefile.in.
5030 AC_CONFIG_COMMANDS([src/epaths.h], [
5031 if test "${opsys}" = "mingw32"; then
5032 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5034 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5036 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5038 AC_CONFIG_COMMANDS([src/.gdbinit], [
5039 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5040 echo "source $srcdir/src/.gdbinit" > src/.gdbinit