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, ossaudio, alsa, no;
171 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
172 [ case "${withval}" in
173 yes|no|ossaudio|alsa) val=$withval ;;
174 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
175 this option's value should be `yes', `no', `ossaudio', or `alsa'.])
180 [with_sound=$with_features])
182 dnl FIXME currently it is not the last.
183 dnl This should be the last --with option, because --with-x is
184 dnl added later on when we find the file name of X, and it's best to
185 dnl keep them together visually.
186 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
187 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
188 [ case "${withval}" in
189 y | ye | yes ) val=gtk ;;
191 l | lu | luc | luci | lucid ) val=lucid ;;
192 a | at | ath | athe | athen | athena ) val=athena ;;
193 m | mo | mot | moti | motif ) val=motif ;;
194 g | gt | gtk ) val=gtk ;;
198 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
199 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
200 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
201 `athena' and `lucid' are synonyms.])
207 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
208 if test "$with_wide_int" = yes; then
209 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
212 dnl _ON results in a '--without' option in the --help output, so
213 dnl the help text should refer to "don't compile", etc.
214 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
215 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
216 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
217 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
218 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
219 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
220 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
221 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
223 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
224 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
225 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
227 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
228 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
229 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
230 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
231 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
233 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
234 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
235 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
236 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
237 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
238 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
239 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
241 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
242 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
243 [ case "${withval}" in
244 y | ye | yes ) val=yes ;;
246 g | gf | gfi | gfil | gfile ) val=gfile ;;
247 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
248 w | w3 | w32 ) val=w32 ;;
249 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
250 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
251 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
252 otherwise for the first of `gfile' or `inotify' that is usable.])
255 with_file_notification=$val
257 [with_file_notification=$with_features])
259 ## For the times when you want to build Emacs but don't have
260 ## a suitable makeinfo, and can live without the manuals.
261 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
262 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
264 ## Makefile.in needs the cache file name.
267 ## This is an option because I do not know if all info/man support
268 ## compressed files, nor how to test if they do so.
269 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
270 if test $with_compress_info = yes; then
277 AC_ARG_WITH([pkg-config-prog],dnl
278 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
279 [file name of pkg-config for finding GTK and librsvg])])
280 if test "X${with_pkg_config_prog}" != X; then
281 if test "${with_pkg_config_prog}" != yes; then
282 PKG_CONFIG="${with_pkg_config_prog}"
286 AC_ARG_WITH(gameuser,dnl
287 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
288 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
289 && gameuser="${with_gameuser}"
290 test "X$gameuser" = X && gameuser=games
292 AC_ARG_WITH([gnustep-conf],dnl
293 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
294 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
295 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
296 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
297 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
298 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
300 AC_ARG_ENABLE(ns-self-contained,
301 [AS_HELP_STRING([--disable-ns-self-contained],
302 [disable self contained build under NeXTstep])],
303 EN_NS_SELF_CONTAINED=$enableval,
304 EN_NS_SELF_CONTAINED=yes)
306 AC_ARG_ENABLE(locallisppath,
307 [AS_HELP_STRING([--enable-locallisppath=PATH],
308 [directories Emacs should search for lisp files specific
310 if test "${enableval}" = "no"; then
312 elif test "${enableval}" != "yes"; then
313 locallisppath=${enableval}
316 AC_ARG_ENABLE(checking,
317 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
318 [enable expensive run-time checks. With LIST,
319 enable only specific categories of checks.
320 Categories are: all,yes,no.
321 Flags are: stringbytes, stringoverrun, stringfreelist,
322 xmallocoverrun, conslist, glyphs])],
323 [ac_checking_flags="${enableval}"],[])
324 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
325 for check in $ac_checking_flags
328 # these set all the flags to specific states
329 yes) ac_enable_checking=1 ;;
330 no) ac_enable_checking= ;
331 ac_gc_check_stringbytes= ;
332 ac_gc_check_string_overrun= ;
333 ac_gc_check_string_free_list= ;
334 ac_xmalloc_overrun= ;
335 ac_gc_check_cons_list= ;
337 all) ac_enable_checking=1 ;
338 ac_gc_check_stringbytes=1 ;
339 ac_gc_check_string_overrun=1 ;
340 ac_gc_check_string_free_list=1 ;
341 ac_xmalloc_overrun=1 ;
342 ac_gc_check_cons_list=1 ;
344 # these enable particular checks
345 stringbytes) ac_gc_check_stringbytes=1 ;;
346 stringoverrun) ac_gc_check_string_overrun=1 ;;
347 stringfreelist) ac_gc_check_string_free_list=1 ;;
348 xmallocoverrun) ac_xmalloc_overrun=1 ;;
349 conslist) ac_gc_check_cons_list=1 ;;
350 glyphs) ac_glyphs_debug=1 ;;
351 *) AC_MSG_ERROR(unknown check category $check) ;;
356 if test x$ac_enable_checking != x ; then
357 AC_DEFINE(ENABLE_CHECKING, 1,
358 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
360 if test x$ac_gc_check_stringbytes != x ; then
361 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
362 [Define this temporarily to hunt a bug. If defined, the size of
363 strings is redundantly recorded in sdata structures so that it can
364 be compared to the sizes recorded in Lisp strings.])
366 if test x$ac_gc_check_string_overrun != x ; then
367 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
368 [Define this to check for short string overrun.])
370 if test x$ac_gc_check_string_free_list != x ; then
371 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
372 [Define this to check the string free list.])
374 if test x$ac_xmalloc_overrun != x ; then
375 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
376 [Define this to check for malloc buffer overrun.])
378 if test x$ac_gc_check_cons_list != x ; then
379 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
380 [Define this to check for errors in cons list.])
382 if test x$ac_glyphs_debug != x ; then
383 AC_DEFINE(GLYPH_DEBUG, 1,
384 [Define this to enable glyphs debugging code.])
387 AC_ARG_ENABLE(check-lisp-object-type,
388 [AS_HELP_STRING([--enable-check-lisp-object-type],
389 [enable compile time checks for the Lisp_Object data type.
390 This is useful for development for catching certain types of bugs.])],
391 if test "${enableval}" != "no"; then
392 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
393 [Define this to enable compile time checks for the Lisp_Object data type.])
397 dnl The name of this option is unfortunate. It predates, and has no
398 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
399 dnl Actually, it stops it working.
400 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
401 AC_ARG_ENABLE(profiling,
402 [AS_HELP_STRING([--enable-profiling],
403 [build emacs with low-level, gprof profiling support.
404 Mainly useful for debugging Emacs itself. May not work on
405 all platforms. Stops profiler.el working.])],
406 [ac_enable_profiling="${enableval}"],[])
407 if test x$ac_enable_profiling != x ; then
408 PROFILING_CFLAGS="-DPROFILING=1 -pg"
412 AC_SUBST(PROFILING_CFLAGS)
414 AC_ARG_ENABLE(autodepend,
415 [AS_HELP_STRING([--enable-autodepend],
416 [automatically generate dependencies to .h-files.
417 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
419 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
421 AC_ARG_ENABLE(gtk-deprecation-warnings,
422 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
423 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
424 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
426 #### Make srcdir absolute, if it isn't already. It's important to
427 #### avoid running the file name through pwd unnecessarily, since pwd can
428 #### give you automounter prefixes, which can go away. We do all this
429 #### so Emacs can find its files when run uninstalled.
430 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
433 [[\\/]]* | ?:[[\\/]]*) ;;
435 ## We may be able to use the $PWD environment variable to make this
436 ## absolute. But sometimes PWD is inaccurate.
437 ## Note: we used to use $PWD at the end instead of `pwd`,
438 ## but that tested only for a well-formed and valid PWD,
439 ## it did not object when PWD was well-formed and valid but just wrong.
440 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
444 srcdir=`(cd "$srcdir"; pwd)`
447 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
450 ### Canonicalize the configuration name.
454 configuration=${host_alias-${build_alias-$host}}
456 dnl This used to use changequote, but, apart from `changequote is evil'
457 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
458 dnl the great gob of text. Thus it's not processed for possible expansion.
459 dnl Just make sure the brackets remain balanced.
461 dnl Since Emacs can't find matching pairs of quotes, boundaries are
462 dnl indicated by comments.
466 ### If you add support for a new configuration, add code to this
467 ### switch statement to recognize your configuration name and select
468 ### the appropriate operating system file.
470 ### You would hope that you could choose an s/*.h
471 ### file based on the operating system portion. However, it turns out
472 ### that each s/*.h file is pretty manufacturer-specific.
473 ### So we basically have to have a special case for each
474 ### configuration name.
476 ### As far as handling version numbers on operating systems is
477 ### concerned, make sure things will fail in a fixable way. If
478 ### /etc/MACHINES doesn't say anything about version numbers, be
479 ### prepared to handle anything reasonably. If version numbers
480 ### matter, be sure /etc/MACHINES says something about it.
483 case "${canonical}" in
485 ## GNU/Linux and similar ports
500 ## FreeBSD kernel + glibc based userland
515 ## Apple Darwin / Mac OS X
517 case "${canonical}" in
524 ## Use fink packages if available.
525 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
526 ## if test -d /sw/include && test -d /sw/lib; then
527 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
528 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
537 ## HP 9000 series 700 and 800, running HP/UX
541 hppa*-hp-hpux1[1-9]* )
543 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
547 rs6000-ibm-aix4.[23]* )
550 powerpc-ibm-aix4.[23]* )
553 rs6000-ibm-aix[56]* )
556 powerpc-ibm-aix[56]* )
560 ## Silicon Graphics machines
564 # Without defining _LANGUAGE_C, things get masked out in the headers
565 # so that, for instance, grepping for `free' in stdlib.h fails and
566 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
567 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
572 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
573 | x86_64-*-solaris2* | x86_64-*-sunos5*)
574 case "${canonical}" in
576 amd64-*-*|x86_64-*-*) ;;
580 case "${canonical}" in
581 *-sunos5.6* | *-solaris2.6* )
585 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
587 emacs_check_sunpro_c=yes
589 *-sunos5* | *-solaris* )
591 emacs_check_sunpro_c=yes
594 ## Watch out for a compiler that we know will not work.
595 case "${canonical}" in
596 *-solaris* | *-sunos5* )
597 if [ "x$CC" = x/usr/ucb/cc ]; then
598 ## /usr/ucb/cc doesn't work;
599 ## we should find some other compiler that does work.
607 ## Intel 386 machines where we don't care about the manufacturer.
609 case "${canonical}" in
610 *-darwin* ) opsys=darwin ;;
613 # MinGW overrides and adds some system headers in nt/inc.
614 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
616 *-sysv4.2uw* ) opsys=unixware ;;
617 *-sysv5uw* ) opsys=unixware ;;
618 *-sysv5OpenUNIX* ) opsys=unixware ;;
619 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
628 ### If the code above didn't choose an operating system, just choose
629 ### an operating system based on the configuration name. You really
630 ### only want to use this when you have no idea what the right
631 ### operating system is; if you know what operating systems a machine
632 ### runs, it's cleaner to make it explicit in the case statement
634 if test x"${opsys}" = x; then
635 case "${canonical}" in
636 *-gnu* ) opsys=gnu ;;
646 if test $unported = yes; then
647 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
648 Check `etc/MACHINES' for recognized configuration names.])
652 #### Choose a compiler.
654 dnl Sets GCC=yes if using gcc.
658 if test x$GCC = xyes; then
659 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
661 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
664 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
665 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
666 dnl that clash with MinGW.
667 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
669 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
670 # as we don't use them.
671 AC_DEFUN([gl_FCNTL_O_FLAGS])
672 # Avoid gnulib's threadlib module, as we do threads our own way.
673 AC_DEFUN([gl_THREADLIB])
675 # Initialize gnulib right after choosing the compiler.
676 dnl Amongst other things, this sets AR and ARFLAGS.
679 if test "$ac_test_CFLAGS" != set; then
680 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
681 # if -g3 works and the user does not specify CFLAGS.
682 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
685 emacs_g3_CFLAGS='-g3';;
687 emacs_g3_CFLAGS='-g3 -O2';;
691 if test -n "$emacs_g3_CFLAGS"; then
692 emacs_save_CFLAGS=$CFLAGS
693 CFLAGS=$emacs_g3_CFLAGS
694 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
695 [emacs_cv_prog_cc_g3],
696 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
697 [emacs_cv_prog_cc_g3=yes],
698 [emacs_cv_prog_cc_g3=no])])
699 if test $emacs_cv_prog_cc_g3 != yes; then
700 CFLAGS=$emacs_save_CFLAGS
702 if test $opsys = mingw32; then
703 CFLAGS="$CFLAGS -gdwarf-2"
710 # No optimization flag was inferred for this non-GCC compiler.
711 # Try -O. This is needed for xlc on AIX; see Bug#14258.
712 emacs_save_CFLAGS=$CFLAGS
713 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
715 AC_CACHE_CHECK([whether $CC accepts -O],
716 [emacs_cv_prog_cc_o],
717 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
718 [emacs_cv_prog_cc_o=yes],
719 [emacs_cv_prog_cc_o=no])])
720 if test $emacs_cv_prog_cc_o != yes; then
721 CFLAGS=$emacs_save_CFLAGS
726 AC_ARG_ENABLE([gcc-warnings],
727 [AS_HELP_STRING([--enable-gcc-warnings],
728 [turn on lots of GCC warnings/errors. This is intended for
729 developers, and may generate false alarms when used
730 with older or non-GNU development tools.])],
733 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
735 gl_gcc_warnings=$enableval],
739 AC_ARG_ENABLE(link-time-optimization,
740 [AS_HELP_STRING([--enable-link-time-optimization],
741 [build emacs with link-time optimization.
742 This is supported only for GCC since 4.5.0.])],
743 if test "${enableval}" != "no"; then
744 AC_MSG_CHECKING([whether link-time optimization is supported])
746 if test x$GCC = xyes; then
747 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
748 if test x$CPUS != x; then
754 CFLAGS="$CFLAGS $LTO"
755 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
756 [ac_lto_supported=yes], [ac_lto_supported=no])
759 AC_MSG_RESULT([$ac_lto_supported])
760 if test "$ac_lto_supported" = "yes"; then
761 CFLAGS="$CFLAGS $LTO"
765 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
766 # ------------------------------------------------
767 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
768 # Otherwise, run RUN-IF-NOT-FOUND.
769 AC_DEFUN([gl_GCC_VERSION_IFELSE],
773 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
776 # error "your version of gcc is older than $1.$2"
783 # When compiling with GCC, prefer -isystem to -I when including system
784 # include files, to avoid generating useless diagnostics for the files.
785 if test "$gl_gcc_warnings" != yes; then
790 # This, $nw, is the list of warnings we disable.
793 case $with_x_toolkit in
794 lucid | athena | motif)
795 # Old toolkits mishandle 'const'.
796 nw="$nw -Wwrite-strings"
799 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
802 AC_SUBST([WERROR_CFLAGS])
804 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
805 nw="$nw -Woverlength-strings" # Not a problem these days
806 nw="$nw -Wlogical-op" # any use of fwrite provokes this
807 nw="$nw -Wformat-nonliteral" # we do this a lot
808 nw="$nw -Wvla" # warnings in gettext.h
809 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
810 nw="$nw -Wswitch-default" # Too many warnings for now
811 nw="$nw -Winline" # OK to ignore 'inline'
812 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
813 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
814 # signed overflow has undefined behavior
815 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
816 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
817 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
819 # Emacs doesn't care about shadowing; see
820 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
823 # Emacs's use of alloca inhibits protecting the stack.
824 nw="$nw -Wstack-protector"
826 # The following line should be removable at some point.
827 nw="$nw -Wsuggest-attribute=pure"
829 # clang is unduly picky about some things.
830 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
837 [emacs_cv_clang=yes],
838 [emacs_cv_clang=no])])
839 if test $emacs_cv_clang = yes; then
840 nw="$nw -Wcast-align"
843 gl_MANYWARN_ALL_GCC([ws])
844 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
848 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
849 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
850 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
851 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
852 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
853 gl_WARN_ADD([-Wno-format-nonliteral])
855 # In spite of excluding -Wlogical-op above, it is enabled, as of
856 # gcc 4.5.0 20090517.
857 gl_WARN_ADD([-Wno-logical-op])
859 # More things that clang is unduly picky about.
860 if test $emacs_cv_clang = yes; then
861 gl_WARN_ADD([-Wno-format-extra-args])
862 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
863 gl_WARN_ADD([-Wno-unused-command-line-argument])
864 gl_WARN_ADD([-Wno-unused-value])
867 gl_WARN_ADD([-fdiagnostics-show-option])
868 gl_WARN_ADD([-funit-at-a-time])
870 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
871 AH_VERBATIM([FORTIFY_SOURCE],
872 [/* Enable compile-time and run-time bounds-checking, and some warnings,
873 without upsetting glibc 2.15+. */
874 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
875 # define _FORTIFY_SOURCE 2
878 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
880 # We use a slightly smaller set of warning options for lib/.
881 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
883 nw="$nw -Wunused-macros"
885 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
886 AC_SUBST([GNULIB_WARN_CFLAGS])
891 dnl Some other nice autoconf tests.
892 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
895 dnl if test "x$RANLIB" = x; then
900 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
901 dnl can be made to directories. This is not relevant for our usage, and
902 dnl excludes some cases that work fine for us. Eg MS Windows or files
903 dnl hosted on AFS, both examples where simple links work, but links to
904 dnl directories fail. We use a cut-down version instead.
907 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
908 rm -f conf$$ conf$$.file
910 LN_S_FILEONLY='cp -p'
912 if (echo >conf$$.file) 2>/dev/null; then
913 if ln -s conf$$.file conf$$ 2>/dev/null; then
914 LN_S_FILEONLY='ln -s'
915 elif ln conf$$.file conf$$ 2>/dev/null; then
920 rm -f conf$$ conf$$.file
922 if test "$LN_S_FILEONLY" = "ln -s"; then
925 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
928 AC_SUBST(LN_S_FILEONLY)
931 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
932 dnl doesn't support links to directories, as in "ln file dir". But that
933 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
934 dnl executables at "make install" time.
935 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
936 dnl for more details.
937 if test "$opsys" = "mingw32"; then
941 AC_PATH_PROG(INSTALL_INFO, install-info, :,
942 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
943 dnl Don't use GZIP, which is used by gzip for additional parameters.
944 AC_PATH_PROG(GZIP_PROG, gzip)
946 if test $opsys = gnu-linux; then
947 AC_PATH_PROG(PAXCTL, paxctl,,
948 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
949 if test "X$PAXCTL" != X; then
950 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
951 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
952 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
953 else AC_MSG_RESULT(no); PAXCTL=""; fi])
957 ## Need makeinfo >= 4.7 (?) to build the manuals.
958 AC_PATH_PROG(MAKEINFO, makeinfo, no)
959 dnl By this stage, configure has already checked for egrep and set EGREP,
960 dnl or exited with an error if no egrep was found.
961 if test "$MAKEINFO" != "no"; then
963 $MAKEINFO --version 2> /dev/null |
964 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
970 ## Makeinfo is unusual. For a released Emacs, the manuals are
971 ## pre-built, and not deleted by the normal clean rules. makeinfo is
972 ## therefore in the category of "special tools" not normally required, which
973 ## configure does not have to check for (eg autoconf itself).
974 ## In a Bazaar checkout on the other hand, the manuals are not included.
975 ## So makeinfo is a requirement to build from Bazaar, and configure
976 ## should test for it as it does for any other build requirement.
977 ## We use the presence of $srcdir/info/emacs to distinguish a release,
978 ## with pre-built manuals, from a Bazaar checkout.
981 if test "$MAKEINFO" = "no"; then
983 if test "x${with_makeinfo}" = "xno"; then
985 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
986 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
987 source tree does not seem to have pre-built manuals in the `info' directory.
988 Either install a suitable version of makeinfo, or re-run configure
989 with the `--without-makeinfo' option to build without the manuals.] )
992 AC_SUBST(HAVE_MAKEINFO)
994 dnl Just so that there is only a single place we need to edit.
1001 if test $opsys = mingw32; then
1002 DOCMISC_DVI_W32 = efaq-w32.dvi
1003 DOCMISC_HTML_W32 = efaq-w32.html
1004 DOCMISC_INFO_W32 = efaq-w32.info
1005 DOCMISC_PDF_W32 = efaq-w32.pdf
1006 DOCMISC_PS_W32 = efaq-w32.ps
1014 AC_SUBST(DOCMISC_DVI_W32)
1015 AC_SUBST(DOCMISC_HTML_W32)
1016 AC_SUBST(DOCMISC_INFO_W32)
1017 AC_SUBST(DOCMISC_PDF_W32)
1018 AC_SUBST(DOCMISC_PS_W32)
1021 dnl Add our options to ac_link now, after it is set up.
1023 if test x$GCC = xyes; then
1024 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1025 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1027 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1028 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1031 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1032 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1033 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1034 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1035 dnl if not built to support GNU ld.
1037 late_LDFLAGS=$LDFLAGS
1038 if test x$GCC = xyes; then
1039 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
1041 LDFLAGS="$LDFLAGS -znocombreloc"
1044 AC_MSG_CHECKING([for -znocombreloc])
1045 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1046 [AC_MSG_RESULT(yes)],
1047 LDFLAGS=$late_LDFLAGS
1048 [AC_MSG_RESULT(no)])
1051 dnl The function dump-emacs will not be defined and temacs will do
1052 dnl (load "loadup") automatically unless told otherwise.
1053 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1055 your-opsys-here) CANNOT_DUMP=yes ;;
1058 test "$CANNOT_DUMP" = "yes" && \
1059 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1061 AC_SUBST(CANNOT_DUMP)
1064 UNEXEC_OBJ=unexelf.o
1066 # MSDOS uses unexcoff.o
1068 UNEXEC_OBJ=unexaix.o
1074 UNEXEC_OBJ=unexmacosx.o
1077 UNEXEC_OBJ=unexhp9k800.o
1080 UNEXEC_OBJ=unexw32.o
1083 # Use the Solaris dldump() function, called from unexsol.c, to dump
1084 # emacs, instead of the generic ELF dump code found in unexelf.c.
1085 # The resulting binary has a complete symbol table, and is better
1086 # for debugging and other observability tools (debuggers, pstack, etc).
1088 # If you encounter a problem using dldump(), please consider sending
1089 # a message to the OpenSolaris tools-linking mailing list:
1090 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1092 # It is likely that dldump() works with older Solaris too, but this has
1093 # not been tested, so for now this change is for Solaris 10 or newer.
1094 UNEXEC_OBJ=unexsol.o
1101 ## Let `ld' find image libs and similar things in /usr/local/lib.
1102 ## The system compiler, GCC, has apparently been modified to not
1103 ## look there, contrary to what a stock GCC would do.
1104 ### It's not our place to do this. See bug#10313#17.
1105 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1110 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1111 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1115 ### It's not our place to do this. See bug#10313#17.
1116 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1121 ## Han Boetes <han@boetes.org> says this is necessary,
1122 ## otherwise Emacs dumps core on elf systems.
1123 LD_SWITCH_SYSTEM="-Z"
1126 AC_SUBST(LD_SWITCH_SYSTEM)
1128 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1130 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1131 ## which has not been defined yet. When this was handled with cpp,
1132 ## it was expanded to null when configure sourced the s/*.h file.
1133 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1134 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1135 ## (or somesuch), but because it is supposed to go at the _front_
1136 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1137 ## Compare with the gnu-linux case below, which added to the end
1138 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1139 ## LD_SWITCH_SYSTEM_TEMACS.
1142 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1149 AC_CHECK_DECL([__ELF__])
1150 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1151 ## With ELF, make sure that all common symbols get allocated to in the
1152 ## data section. Otherwise, the dump of temacs may miss variables in
1153 ## the shared library that have been initialized. For example, with
1154 ## GNU libc, __malloc_initialized would normally be resolved to the
1155 ## shared library's .bss section, which is fatal.
1156 if test "x$GCC" = "xyes"; then
1157 C_SWITCH_MACHINE="-fno-common"
1159 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1162 UNEXEC_OBJ=unexalpha.o
1166 AC_SUBST(C_SWITCH_MACHINE)
1168 AC_SUBST(UNEXEC_OBJ)
1171 ## Some programs in src produce warnings saying certain subprograms
1172 ## are too complex and need a MAXMEM value greater than 2000 for
1173 ## additional optimization. --nils@exp-math.uni-essen.de
1174 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1175 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1176 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1177 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1178 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1179 AC_SUBST(C_SWITCH_SYSTEM)
1184 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1185 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1187 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1189 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1191 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1193 ## Motif needs -lgen.
1194 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1197 AC_SUBST(LIBS_SYSTEM)
1199 ### Make sure subsequent tests use flags consistent with the build flags.
1201 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1202 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1204 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1207 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1208 AC_DEFUN([AC_TYPE_SIZE_T])
1209 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1210 AC_DEFUN([AC_TYPE_UID_T])
1214 dnl Current possibilities handled by sed (aix4-2 -> aix,
1215 dnl gnu-linux -> gnu/linux, etc.):
1216 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1217 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1218 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1225 ## Adding -lm confuses the dynamic linker, so omit it.
1228 freebsd | dragonfly )
1229 SYSTEM_TYPE=berkeley-unix
1231 gnu-linux | gnu-kfreebsd )
1233 hpux10-20 | hpux11 )
1237 SYSTEM_TYPE=windows-nt
1239 dnl NB this may be adjusted below.
1241 SYSTEM_TYPE=berkeley-unix
1245 SYSTEM_TYPE=usg-unix-v
1251 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1252 [The type of system you are compiling for; sets `system-type'.])
1255 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1256 pre_PKG_CONFIG_LIBS=$LIBS
1258 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1260 dnl This function definition taken from Gnome 2.0
1261 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1262 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1263 dnl also defines GSTUFF_PKG_ERRORS on error
1264 AC_DEFUN([PKG_CHECK_MODULES], [
1267 if test "$PKG_CONFIG" = "no" ; then
1268 ifelse([$4], , [AC_MSG_ERROR([
1269 *** 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])
1271 PKG_CONFIG_MIN_VERSION=0.9.0
1272 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1273 AC_MSG_CHECKING(for $2)
1275 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1276 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1277 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1284 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1285 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1286 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1292 ## If we have a custom action on failure, don't print errors, but
1293 ## do set a variable so people can do so. Do it in a subshell
1294 ## to capture any diagnostics in invoking pkg-config.
1295 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1296 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1302 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1303 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1307 if test $succeeded = yes; then
1308 ifelse([$3], , :, [$3])
1310 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.])], [$4])
1315 if test "${with_sound}" != "no"; then
1316 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1317 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1318 have_sound_header=yes, [], [
1320 #define WIN32_LEAN_AND_MEAN
1321 #include <windows.h>
1324 if test "${with_sound}" = "ossaudio" || test "${with_sound}" = "yes"; then
1325 # Emulation library used on NetBSD.
1326 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1327 test "${with_sound}" = "ossaudio" && test -z "$LIBSOUND" && \
1328 AC_MSG_ERROR([ossaudio sound support requested but not found.])
1329 dnl FIXME? If we did find ossaudio, should we set with_sound=ossaudio?
1330 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1334 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1336 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1337 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1338 if test $HAVE_ALSA = yes; then
1339 SAVE_CFLAGS="$CFLAGS"
1341 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1342 LIBS="$ALSA_LIBS $LIBS"
1343 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1344 emacs_alsa_normal=yes,
1345 emacs_alsa_normal=no)
1346 if test "$emacs_alsa_normal" != yes; then
1347 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1348 [[snd_lib_error_set_handler (0);]])],
1349 emacs_alsa_subdir=yes,
1350 emacs_alsa_subdir=no)
1351 if test "$emacs_alsa_subdir" != yes; then
1352 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1354 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1357 CFLAGS="$SAVE_CFLAGS"
1359 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1360 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1361 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1362 elif test "${with_sound}" = "alsa"; then
1363 AC_MSG_ERROR([ALSA sound support requested but not found.])
1365 fi dnl with_sound = alsa|yes
1367 dnl Define HAVE_SOUND if we have sound support. We know it works and
1368 dnl compiles only on the specified platforms. For others, it
1369 dnl probably doesn't make sense to try.
1370 dnl FIXME So surely we should bypass this whole section if not using
1371 dnl one of these platforms?
1372 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1374 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1375 dnl Adjust the --with-sound help text if you change this.
1376 gnu-linux|freebsd|netbsd|mingw32)
1377 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1383 AC_SUBST(CFLAGS_SOUND)
1386 dnl checks for header files
1387 AC_CHECK_HEADERS_ONCE(
1391 sys/utsname.h pwd.h utmp.h util.h)
1393 AC_MSG_CHECKING(if personality LINUX32 can be set)
1394 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1395 emacs_cv_personality_linux32=yes,
1396 emacs_cv_personality_linux32=no)
1397 AC_MSG_RESULT($emacs_cv_personality_linux32)
1399 if test $emacs_cv_personality_linux32 = yes; then
1400 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1401 [Define to 1 if personality LINUX32 can be set.])
1404 dnl On Solaris 8 there's a compilation warning for term.h because
1405 dnl it doesn't define `bool'.
1406 AC_CHECK_HEADERS(term.h, , , -)
1408 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1410 if test $ac_cv_have_decl_sys_siglist != yes; then
1411 # For Tru64, at least:
1412 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1417 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1418 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1419 #if HAVE_SYS_SOCKET_H
1420 #include <sys/socket.h>
1422 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1423 #if HAVE_SYS_SOCKET_H
1424 #include <sys/socket.h>
1426 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1427 #if HAVE_SYS_SOCKET_H
1428 #include <sys/socket.h>
1431 dnl checks for structure members
1432 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1433 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1434 struct ifreq.ifr_addr,
1435 struct ifreq.ifr_addr.sa_len], , ,
1436 [AC_INCLUDES_DEFAULT
1437 #if HAVE_SYS_SOCKET_H
1438 #include <sys/socket.h>
1444 dnl Check for endianness.
1445 dnl AC_C_BIGENDIAN is done by gnulib.
1447 dnl check for Make feature
1448 dnl AC_PROG_MAKE_SET is done by Automake.
1453 dnl check for GNU Make if we have GCC and autodepend is on.
1454 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1455 AC_MSG_CHECKING([whether we are using GNU Make])
1457 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1458 if test "x$testval" != x; then
1461 ac_enable_autodepend=no
1463 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1464 if test $HAVE_GNU_MAKE = yes; then
1465 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1466 SAVE_CFLAGS="$CFLAGS"
1467 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1468 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1469 CFLAGS="$SAVE_CFLAGS"
1470 test -f deps.d || ac_enable_autodepend=no
1472 AC_MSG_RESULT([$ac_enable_autodepend])
1474 if test $ac_enable_autodepend = yes; then
1475 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1476 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1477 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1478 deps_frag=autodeps.mk
1481 deps_frag=$srcdir/src/$deps_frag
1484 AC_SUBST_FILE(deps_frag)
1487 lisp_frag=$srcdir/src/lisp.mk
1488 AC_SUBST_FILE(lisp_frag)
1491 dnl checks for operating system services
1492 AC_SYS_LONG_FILE_NAMES
1494 #### Choose a window system.
1496 ## We leave window_system equal to none if
1497 ## we end up building without one. Any new window system should
1498 ## set window_system to an appropriate value and add objects to
1499 ## window-system-specific substs.
1503 if test "$no_x" != yes; then
1507 LD_SWITCH_X_SITE_RPATH=
1508 if test "${x_libraries}" != NONE; then
1509 if test -n "${x_libraries}"; then
1510 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1511 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1513 x_default_search_path=""
1514 x_search_path=${x_libraries}
1515 if test -z "${x_search_path}"; then
1516 x_search_path=/usr/lib
1518 for x_library in `echo ${x_search_path}: | \
1519 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1521 ${x_library}/X11/%L/%T/%N%C%S:\
1522 ${x_library}/X11/%l/%T/%N%C%S:\
1523 ${x_library}/X11/%T/%N%C%S:\
1524 ${x_library}/X11/%L/%T/%N%S:\
1525 ${x_library}/X11/%l/%T/%N%S:\
1526 ${x_library}/X11/%T/%N%S"
1527 if test x"${x_default_search_path}" = x; then
1528 x_default_search_path=${x_search_path}
1530 x_default_search_path="${x_search_path}:${x_default_search_path}"
1534 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1536 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1537 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1540 if test x"${x_includes}" = x; then
1541 bitmapdir=/usr/include/X11/bitmaps
1543 # accumulate include directories that have X11 bitmap subdirectories
1545 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1546 if test -d "${bmd}/X11/bitmaps"; then
1547 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1549 if test -d "${bmd}/bitmaps"; then
1550 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1553 if test ${bmd_acc} != "dummyval"; then
1554 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1561 tmp_CPPFLAGS="$CPPFLAGS"
1562 tmp_CFLAGS="$CFLAGS"
1563 CPPFLAGS="$CPPFLAGS -x objective-c"
1564 CFLAGS="$CFLAGS -x objective-c"
1567 if test "${with_ns}" != no; then
1568 if test "${opsys}" = darwin; then
1570 ns_appdir=`pwd`/nextstep/Emacs.app
1571 ns_appbindir=${ns_appdir}/Contents/MacOS
1572 ns_appresdir=${ns_appdir}/Contents/Resources
1573 ns_appsrc=Cocoa/Emacs.base
1574 elif test -f $GNUSTEP_CONFIG_FILE; then
1576 ns_appdir=`pwd`/nextstep/Emacs.app
1577 ns_appbindir=${ns_appdir}
1578 ns_appresdir=${ns_appdir}/Resources
1579 ns_appsrc=GNUstep/Emacs.base
1580 dnl FIXME sourcing this several times in subshells seems inefficient.
1581 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1582 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1583 dnl I seemed to need these as well with GNUstep-startup 0.25.
1584 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1585 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1586 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1587 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1588 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1589 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1590 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1591 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1592 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1593 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1594 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1595 dnl If they had chosen to either define it or not, we could have
1596 dnl just used AC_CHECK_DECL here.
1597 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1598 emacs_cv_objc_exceptions,
1599 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1600 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1604 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1605 if test $emacs_cv_objc_exceptions = yes; then
1606 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1607 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1608 [Define if GNUstep uses ObjC exceptions.])
1609 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1613 dnl This is only used while we test the NS headers, it gets reset below.
1614 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1616 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1617 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1618 files are missing or cannot be compiled.])])
1620 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1622 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1623 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1626 #error "OSX 10.4 or newer required"
1630 ns_osx_have_104=yes,
1632 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1634 ns_have_nsinteger=yes,
1635 ns_have_nsinteger=no)
1636 if test $ns_osx_have_104 = no; then
1637 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1639 if test $ns_have_nsinteger = yes; then
1640 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1644 AC_SUBST(LIBS_GNUSTEP)
1646 INSTALL_ARCH_INDEP_EXTRA=install-etc
1647 ns_self_contained=no
1650 if test "${HAVE_NS}" = yes; then
1651 if test "$with_toolkit_scroll_bars" = "no"; then
1652 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1655 window_system=nextstep
1656 # set up packaging dirs
1657 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1658 ns_self_contained=yes
1659 prefix=${ns_appresdir}
1660 exec_prefix=${ns_appbindir}
1661 dnl This one isn't really used, only archlibdir is.
1662 libexecdir="\${ns_appbindir}/libexec"
1663 archlibdir="\${ns_appbindir}/libexec"
1664 etcdocdir="\${ns_appresdir}/etc"
1665 etcdir="\${ns_appresdir}/etc"
1666 dnl FIXME maybe set datarootdir instead.
1667 dnl That would also get applications, icons, man.
1668 infodir="\${ns_appresdir}/info"
1669 mandir="\${ns_appresdir}/man"
1670 lispdir="\${ns_appresdir}/lisp"
1671 leimdir="\${ns_appresdir}/leim"
1672 INSTALL_ARCH_INDEP_EXTRA=
1674 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1676 CFLAGS="$tmp_CFLAGS"
1677 CPPFLAGS="$tmp_CPPFLAGS"
1678 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1679 AC_SUBST(ns_self_contained)
1681 AC_SUBST(NS_OBJC_OBJ)
1692 if test "${with_w32}" != no; then
1695 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1696 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1697 cannot be found.])])
1700 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1703 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1708 if test "${opsys}" = "mingw32"; then
1709 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1710 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1711 #include <windows.h>
1712 #include <usp10.h>]],
1713 [[PIMAGE_NT_HEADERS pHeader;
1714 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1715 [emacs_cv_w32api=yes
1718 AC_MSG_RESULT($emacs_cv_w32api)
1719 if test "${emacs_cv_w32api}" = "no"; then
1720 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1731 if test "${HAVE_W32}" = "yes"; then
1732 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1733 AC_CHECK_TOOL(WINDRES, [windres],
1734 [AC_MSG_ERROR([No resource compiler found.])])
1735 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1736 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1737 EMACSRES="emacs.res"
1738 case "$canonical" in
1739 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1740 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1742 UPDATE_MANIFEST=update-game-score.exe.manifest
1743 if test "${opsys}" = "cygwin"; then
1744 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1745 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1746 # Tell the linker that emacs.res is an object (which we compile from
1747 # the rc file), not a linker script.
1748 W32_RES_LINK="-Wl,emacs.res"
1750 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1751 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1752 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1753 W32_RES_LINK="\$(EMACSRES)"
1754 CLIENTRES="emacsclient.res"
1755 CLIENTW="emacsclientw\$(EXEEXT)"
1756 FIRSTFILE_OBJ=firstfile.o
1759 LIBS_ECLIENT="-lcomctl32"
1760 LIB_WSOCK32="-lwsock32"
1761 NTLIB="ntlib.$ac_objext"
1762 XARGS_LIMIT="-s 10000"
1768 AC_SUBST(EMACS_MANIFEST)
1769 AC_SUBST(UPDATE_MANIFEST)
1772 AC_SUBST(W32_RES_LINK)
1773 AC_SUBST(FIRSTFILE_OBJ)
1776 AC_SUBST(LIBS_ECLIENT)
1777 AC_SUBST(LIB_WSOCK32)
1779 AC_SUBST(XARGS_LIMIT)
1781 if test "${HAVE_W32}" = "yes"; then
1786 ## $window_system is now set to the window system we will
1794 case "${window_system}" in
1799 case "${with_x_toolkit}" in
1800 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1801 motif ) USE_X_TOOLKIT=MOTIF ;;
1803 term_header=gtkutil.h
1804 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1805 dnl USE_X_TOOLKIT is set.
1806 USE_X_TOOLKIT=none ;;
1807 gtk2 ) with_gtk2=yes
1808 term_header=gtkutil.h
1809 USE_X_TOOLKIT=none ;;
1810 gtk3 ) with_gtk3=yes
1811 term_header=gtkutil.h
1812 USE_X_TOOLKIT=none ;;
1813 no ) USE_X_TOOLKIT=none ;;
1814 dnl If user did not say whether to use a toolkit, make this decision later:
1815 dnl use the toolkit if we have gtk, or X11R5 or newer.
1816 * ) USE_X_TOOLKIT=maybe ;;
1820 term_header=nsterm.h
1823 term_header=w32term.h
1827 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1828 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1829 if test "$HAVE_XSERVER" = true ||
1830 test -n "$DISPLAY" ||
1831 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1832 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1833 were found. You should install the relevant development files for X
1834 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1835 sure you have development files for image handling, i.e.
1836 tiff, gif, jpeg, png and xpm.
1837 If you are sure you want Emacs compiled without X window support, pass
1843 ### If we're using X11, we should use the X menu package.
1846 yes ) HAVE_MENUS=yes ;;
1849 # Does the opsystem file prohibit the use of the GNU malloc?
1850 # Assume not, until told otherwise.
1854 [whether malloc is Doug Lea style],
1855 [emacs_cv_var_doug_lea_malloc],
1858 [[#include <malloc.h>
1859 static void hook (void) {}]],
1860 [[malloc_set_state (malloc_get_state ());
1861 __after_morecore_hook = hook;
1862 __malloc_initialize_hook = hook;]])],
1863 [emacs_cv_var_doug_lea_malloc=yes],
1864 [emacs_cv_var_doug_lea_malloc=no])])
1865 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1868 dnl See comments in aix4-2.h about maybe using system malloc there.
1871 ## darwin ld insists on the use of malloc routines in the System framework.
1872 darwin|sol2-10) system_malloc=yes ;;
1875 if test "${system_malloc}" = "yes"; then
1876 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1879 (The GNU allocators don't work with this system configuration.)"
1883 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1884 VMLIMIT_OBJ=vm-limit.o
1886 AC_CHECK_HEADERS([sys/vlimit.h])
1887 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1890 [[extern char data_start[]; char ch;]],
1891 [[return data_start < &ch;]])],
1892 [emacs_cv_data_start=yes],
1893 [emacs_cv_data_start=no])])
1894 if test $emacs_cv_data_start = yes; then
1895 AC_DEFINE([HAVE_DATA_START], 1,
1896 [Define to 1 if data_start is the address of the start
1897 of the main data segment.])
1900 AC_SUBST(GMALLOC_OBJ)
1901 AC_SUBST(VMLIMIT_OBJ)
1903 if test "$doug_lea_malloc" = "yes" ; then
1904 if test "$GNU_MALLOC" = yes ; then
1906 (Using Doug Lea's new malloc from the GNU C Library.)"
1908 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1909 [Define to 1 if you are using the GNU C Library.])
1911 ## Use mmap directly for allocating larger buffers.
1912 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1913 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1914 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1916 gnu*) REL_ALLOC=no ;;
1920 if test x"${REL_ALLOC}" = x; then
1921 REL_ALLOC=${GNU_MALLOC}
1924 use_mmap_for_buffers=no
1926 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1930 if test $use_mmap_for_buffers = yes; then
1931 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1935 LIBS="$LIBS_SYSTEM $LIBS"
1937 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1938 AC_CHECK_LIB(dnet, dnet_ntoa)
1939 dnl This causes -lresolv to get used in subsequent tests,
1940 dnl which causes failures on some systems such as HPUX 9.
1941 dnl AC_CHECK_LIB(resolv, gethostbyname)
1943 dnl FIXME replace main with a function we actually want from this library.
1944 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1946 dnl Check if pthreads is available.
1948 AC_CHECK_HEADERS_ONCE(pthread.h)
1949 if test "$ac_cv_header_pthread_h"; then
1950 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1951 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1952 dnl testing for pthread_self if Emacs uses gmalloc.c.
1953 if test "$GMALLOC_OBJ" = gmalloc.o; then
1954 emacs_pthread_function=pthread_atfork
1956 emacs_pthread_function=pthread_self
1958 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1960 if test "$HAVE_PTHREAD" = yes; then
1961 case "${canonical}" in
1963 *) LIB_PTHREAD="-lpthread"
1964 LIBS="$LIB_PTHREAD $LIBS" ;;
1966 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1968 AC_SUBST([LIB_PTHREAD])
1970 AC_CHECK_LIB(pthreads, cma_open)
1972 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1973 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1974 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1975 ## added to LIBS in configure would never contain the pthreads part,
1976 ## but the value used in Makefiles might. FIXME?
1978 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1979 ## be harmless on older versions of X where it happens to exist.
1980 test "$opsys" = "aix4-2" && \
1981 test $ac_cv_lib_pthreads_cma_open = yes && \
1982 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1984 dnl Check for need for bigtoc support on IBM AIX
1988 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1990 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1991 *) gdb_cv_bigtoc=-bbigtoc ;;
1994 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1995 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2000 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2001 # used for the tests that follow. We set them back to REAL_CFLAGS and
2002 # REAL_CPPFLAGS later on.
2004 REAL_CFLAGS="$CFLAGS"
2005 REAL_CPPFLAGS="$CPPFLAGS"
2007 if test "${HAVE_X11}" = "yes"; then
2008 DEFS="$C_SWITCH_X_SITE $DEFS"
2009 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2011 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2012 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2014 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2015 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2016 # but it's more convenient here to set LD_RUN_PATH since this
2017 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2018 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2019 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2023 if test "${opsys}" = "gnu-linux"; then
2024 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2025 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2026 [[XOpenDisplay ("foo");]])],
2027 [xgnu_linux_first_failure=no],
2028 [xgnu_linux_first_failure=yes])
2029 if test "${xgnu_linux_first_failure}" = "yes"; then
2030 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2031 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2032 OLD_CPPFLAGS="$CPPFLAGS"
2034 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2035 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2036 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2037 LIBS="$LIBS -b i486-linuxaout"
2038 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2039 [[XOpenDisplay ("foo");]])],
2040 [xgnu_linux_second_failure=no],
2041 [xgnu_linux_second_failure=yes])
2042 if test "${xgnu_linux_second_failure}" = "yes"; then
2043 # If we get the same failure with -b, there is no use adding -b.
2044 # So take it out. This plays safe.
2045 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2046 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2047 CPPFLAGS="$OLD_CPPFLAGS"
2058 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2059 # header files included from there.
2060 AC_MSG_CHECKING(for Xkb)
2061 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2062 #include <X11/XKBlib.h>]],
2063 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2064 emacs_xkb=yes, emacs_xkb=no)
2065 AC_MSG_RESULT($emacs_xkb)
2066 if test $emacs_xkb = yes; then
2067 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2070 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2071 XScreenNumberOfScreen)
2074 if test "${window_system}" = "x11"; then
2075 AC_MSG_CHECKING(X11 version 6)
2076 AC_CACHE_VAL(emacs_cv_x11_version_6,
2077 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2078 [[#if XlibSpecificationRelease < 6
2081 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2082 if test $emacs_cv_x11_version_6 = yes; then
2083 AC_MSG_RESULT(6 or newer)
2084 AC_DEFINE(HAVE_X11R6, 1,
2085 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2086 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2087 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2091 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2092 [Define if you have usable X11R6-style XIM support.])
2096 AC_MSG_RESULT(before 6)
2101 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2103 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2104 if test "${with_rsvg}" != "no"; then
2105 RSVG_REQUIRED=2.11.0
2106 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2108 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2109 AC_SUBST(RSVG_CFLAGS)
2112 if test $HAVE_RSVG = yes; then
2113 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2114 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2115 LIBS="$RSVG_LIBS $LIBS"
2121 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2122 if test "${with_imagemagick}" != "no"; then
2123 ## 6.2.8 is the earliest version known to work, but earlier versions
2124 ## might work - let us know if you find one.
2125 ## 6.0.7 does not work. See bug#7955.
2126 ## 6.8.2 makes Emacs crash; see Bug#13867.
2127 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2128 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2129 AC_SUBST(IMAGEMAGICK_CFLAGS)
2130 AC_SUBST(IMAGEMAGICK_LIBS)
2132 if test $HAVE_IMAGEMAGICK = yes; then
2133 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2134 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2135 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2136 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2144 gtk_term_header=$term_header
2147 if test "${opsys}" != "mingw32"; then
2148 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2151 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2153 dnl Checks for libraries.
2154 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2155 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2156 AC_MSG_ERROR($GTK_PKG_ERRORS)
2158 if test "$pkg_check_gtk" = "yes"; then
2159 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2160 GTK_OBJ=emacsgtkfixed.o
2161 gtk_term_header=gtkutil.h
2162 USE_GTK_TOOLKIT="GTK3"
2163 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2164 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2165 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2169 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2173 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2176 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2178 dnl Checks for libraries.
2179 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2180 if test "$pkg_check_gtk" = "no" &&
2181 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2183 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2185 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2189 if test x"$pkg_check_gtk" = xyes; then
2191 AC_SUBST(GTK_CFLAGS)
2193 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2194 CFLAGS="$CFLAGS $GTK_CFLAGS"
2195 LIBS="$GTK_LIBS $LIBS"
2196 dnl Try to compile a simple GTK program.
2197 AC_MSG_CHECKING([whether GTK compiles])
2201 [[/* Check the Gtk and Glib APIs. */
2202 #include <gtk/gtk.h>
2203 #include <glib-object.h>
2205 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2209 GtkSettings *gs = 0;
2210 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2211 strict C prohibits this. Use gtk_main_iteration to test that the
2212 libraries are there. */
2213 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2214 0, 0, 0, G_CALLBACK (callback), 0))
2215 gtk_main_iteration ();
2218 AC_MSG_RESULT([$GTK_COMPILES])
2219 if test "${GTK_COMPILES}" != "yes"; then
2221 if test "$USE_X_TOOLKIT" != "maybe"; then
2222 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2226 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2227 GTK_OBJ="gtkutil.o $GTK_OBJ"
2228 term_header=$gtk_term_header
2230 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2233 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2234 closing open displays. This is no problem if you just use
2235 one display, but if you use more than one and close one of them
2245 if test "${HAVE_GTK}" = "yes"; then
2247 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2248 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2249 if test "$with_toolkit_scroll_bars" != no; then
2250 with_toolkit_scroll_bars=yes
2253 dnl Check if we have the old file selection dialog declared and
2254 dnl in the link library. In 2.x it may be in the library,
2255 dnl but not declared if deprecated featured has been selected out.
2256 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2257 HAVE_GTK_FILE_SELECTION=no
2258 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2259 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2260 #include <gtk/gtk.h>])
2261 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2262 AC_CHECK_FUNCS(gtk_file_selection_new)
2265 dnl Same as above for gtk_handle_box.
2266 HAVE_GTK_HANDLE_BOX=no
2267 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2268 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2269 #include <gtk/gtk.h>])
2270 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2271 AC_CHECK_FUNCS(gtk_handle_box_new)
2274 dnl Same as above for gtk_tearoff_menu_item.
2275 HAVE_GTK_TEAROFF_MENU_ITEM=no
2276 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2277 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2278 #include <gtk/gtk.h>])
2279 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2280 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2283 dnl Check for functions introduced in 2.14 and later.
2284 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2285 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2286 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2287 gtk_orientable_set_orientation \
2288 gtk_window_set_has_resize_grip)
2290 term_header=gtkutil.h
2293 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2294 dnl other platforms.
2297 if test "${with_dbus}" = "yes"; then
2298 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2299 if test "$HAVE_DBUS" = yes; then
2300 LIBS="$LIBS $DBUS_LIBS"
2301 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2302 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2303 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2305 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2306 dbus_type_is_valid \
2307 dbus_validate_bus_name \
2308 dbus_validate_path \
2309 dbus_validate_interface \
2310 dbus_validate_member)
2316 dnl GSettings has been tested under GNU/Linux only.
2318 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2319 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2320 if test "$HAVE_GSETTINGS" = "yes"; then
2321 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2322 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2323 SETTINGS_LIBS="$GSETTINGS_LIBS"
2327 dnl GConf has been tested under GNU/Linux only.
2328 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2330 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2331 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2332 if test "$HAVE_GCONF" = yes; then
2333 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2334 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2335 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2336 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2340 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2341 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2342 if test "$HAVE_GOBJECT" = "yes"; then
2343 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2344 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2346 SAVE_CFLAGS="$CFLAGS"
2348 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2349 LIBS="$SETTINGS_LIBS $LIBS"
2350 AC_CHECK_FUNCS([g_type_init])
2351 CFLAGS="$SAVE_CFLAGS"
2354 AC_SUBST(SETTINGS_CFLAGS)
2355 AC_SUBST(SETTINGS_LIBS)
2358 dnl SELinux is available for GNU/Linux only.
2361 if test "${with_selinux}" = "yes"; then
2362 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2363 if test "$HAVE_LIBSELINUX" = yes; then
2364 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2365 LIBSELINUX_LIBS=-lselinux
2368 AC_SUBST(LIBSELINUX_LIBS)
2371 if test "${with_gnutls}" = "yes" ; then
2372 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2373 if test "${HAVE_GNUTLS}" = "yes"; then
2374 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2377 # Windows loads GnuTLS dynamically
2378 if test "${opsys}" = "mingw32"; then
2381 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2382 LIBS="$LIBGNUTLS_LIBS $LIBS"
2386 AC_SUBST(LIBGNUTLS_LIBS)
2387 AC_SUBST(LIBGNUTLS_CFLAGS)
2392 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2393 dnl a particular library. This doesn't make much sense?
2394 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2395 with_file_notification=no
2398 dnl MS Windows native file monitor is available for mingw32 only.
2399 case $with_file_notification,$opsys in
2400 w32,* | yes,mingw32)
2401 AC_CHECK_HEADER(windows.h)
2402 if test "$ac_cv_header_windows_h" = yes ; then
2403 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2404 NOTIFY_OBJ=w32notify.o
2405 NOTIFY_SUMMARY="yes (w32)"
2409 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2410 dnl has been added in glib 2.24. It has been tested under
2411 dnl GNU/Linux only. We take precedence over inotify, but this makes
2412 dnl only sense when glib has been compiled with inotify support. How
2414 case $with_file_notification,$NOTIFY_OBJ in
2416 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2417 if test "$HAVE_GFILENOTIFY" = "yes"; then
2418 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2419 NOTIFY_OBJ=gfilenotify.o
2420 NOTIFY_SUMMARY="yes -lgio (gfile)"
2424 dnl inotify is only available on GNU/Linux.
2425 case $with_file_notification,$NOTIFY_OBJ in
2427 AC_CHECK_HEADER(sys/inotify.h)
2428 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2429 AC_CHECK_FUNC(inotify_init1)
2430 if test "$ac_cv_func_inotify_init1" = yes; then
2431 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2432 NOTIFY_OBJ=inotify.o
2433 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2438 case $with_file_notification,$NOTIFY_OBJ in
2439 yes,* | no,* | *,?*) ;;
2440 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2443 if test -n "$NOTIFY_OBJ"; then
2444 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2446 AC_SUBST(NOTIFY_OBJ)
2447 AC_SUBST(GFILENOTIFY_CFLAGS)
2448 AC_SUBST(GFILENOTIFY_LIBS)
2450 dnl Do not put whitespace before the #include statements below.
2451 dnl Older compilers (eg sunos4 cc) choke on it.
2454 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2455 if test "$with_xaw3d" != no; then
2456 AC_CACHE_VAL(emacs_cv_xaw3d,
2457 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2458 #include <X11/Intrinsic.h>
2459 #include <X11/Xaw3d/Simple.h>]],
2461 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2462 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2463 emacs_cv_xaw3d=no)])
2467 if test $emacs_cv_xaw3d = yes; then
2468 AC_MSG_CHECKING(for xaw3d)
2469 AC_MSG_RESULT([yes; using Lucid toolkit])
2473 AC_DEFINE(HAVE_XAW3D, 1,
2474 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2476 AC_MSG_CHECKING(for xaw3d)
2478 AC_MSG_CHECKING(for libXaw)
2479 AC_CACHE_VAL(emacs_cv_xaw,
2480 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2481 #include <X11/Intrinsic.h>
2482 #include <X11/Xaw/Simple.h>]],
2486 if test $emacs_cv_xaw = yes; then
2487 AC_MSG_RESULT([yes; using Lucid toolkit])
2490 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2491 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2493 AC_MSG_ERROR([No X toolkit could be found.
2494 If you are sure you want Emacs compiled without an X toolkit, pass
2496 to configure. Otherwise, install the development libraries for the toolkit
2497 that you want to use (e.g. Gtk+) and re-run configure.])
2502 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2505 if test "${USE_X_TOOLKIT}" != "none"; then
2506 AC_MSG_CHECKING(X11 toolkit version)
2507 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2508 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2509 [[#if XtSpecificationRelease < 6
2512 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2513 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2514 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2515 AC_MSG_RESULT(6 or newer)
2516 AC_DEFINE(HAVE_X11XTR6, 1,
2517 [Define to 1 if you have the X11R6 or newer version of Xt.])
2518 LIBXTR6="-lSM -lICE"
2520 ## Use libw.a along with X11R6 Xt.
2521 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2524 AC_MSG_RESULT(before 6)
2527 dnl If using toolkit, check whether libXmu.a exists.
2528 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2530 if test x$HAVE_X11XTR6 = xyes; then
2531 LIBS="-lXt -lSM -lICE $LIBS"
2535 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2536 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2537 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2541 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2542 dnl Why not just test for libxmu in the normal way?
2545 ## These systems don't supply Xmu.
2547 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2555 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2556 if test "${HAVE_X11}" = "yes"; then
2557 if test "${USE_X_TOOLKIT}" != "none"; then
2558 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2563 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2564 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2565 if test -d /usr/include/openmotif; then
2566 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2567 emacs_cv_openmotif=yes
2568 case "$canonical" in
2569 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2570 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2573 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2576 emacs_cv_openmotif=no
2578 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2579 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2580 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2583 Motif version prior to 2.1.
2585 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2586 if test $emacs_cv_motif_version_2_1 = yes; then
2587 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2588 if test x$emacs_cv_openmotif = xyes; then
2589 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2592 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2593 # We put this in CFLAGS temporarily to precede other -I options
2594 # that might be in CFLAGS temporarily.
2595 # We put this in CPPFLAGS where it precedes the other -I options.
2596 OLD_CPPFLAGS=$CPPFLAGS
2598 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2599 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2600 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2602 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2603 if test $emacs_cv_lesstif = yes; then
2604 # Make sure this -I option remains in CPPFLAGS after it is set
2605 # back to REAL_CPPFLAGS.
2606 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2607 # have those other -I options anyway. Ultimately, having this
2608 # directory ultimately in CPPFLAGS will be enough.
2609 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2610 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2613 CPPFLAGS=$OLD_CPPFLAGS
2616 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2617 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2620 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2621 dnl using Motif or Xaw3d is available, and unless
2622 dnl --with-toolkit-scroll-bars=no was specified.
2624 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2625 [Define to 1 if we should use toolkit scroll bars.])dnl
2626 USE_TOOLKIT_SCROLL_BARS=no
2627 if test "${with_toolkit_scroll_bars}" != "no"; then
2628 if test "${USE_X_TOOLKIT}" != "none"; then
2629 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2630 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2632 USE_TOOLKIT_SCROLL_BARS=yes
2633 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2634 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2635 USE_TOOLKIT_SCROLL_BARS=yes
2637 elif test "${HAVE_GTK}" = "yes"; then
2638 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2639 USE_TOOLKIT_SCROLL_BARS=yes
2640 elif test "${HAVE_NS}" = "yes"; then
2641 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2642 USE_TOOLKIT_SCROLL_BARS=yes
2643 elif test "${HAVE_W32}" = "yes"; then
2644 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2645 USE_TOOLKIT_SCROLL_BARS=yes
2649 dnl See if XIM is available.
2650 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2651 #include <X11/Xlib.h>
2652 #include <X11/Xresource.h>]],
2653 [[XIMProc callback;]])],
2655 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2658 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2660 if test "${with_xim}" != "no"; then
2661 AC_DEFINE(USE_XIM, 1,
2662 [Define to 1 if we should use XIM, if it is available.])
2666 if test "${HAVE_XIM}" != "no"; then
2668 if test "$GCC" = yes; then
2669 CFLAGS="$CFLAGS --pedantic-errors"
2671 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2672 #include <X11/Xlib.h>
2673 #include <X11/Xresource.h>]],
2679 XPointer *client_data;
2681 /* If we're not using GCC, it's probably not XFree86, and this is
2682 probably right, but we can't use something like --pedantic-errors. */
2683 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2684 char*, XIMProc, XPointer*);
2686 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2688 [emacs_cv_arg6_star=yes])
2689 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2690 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2691 either XPointer or XPointer*.])dnl
2692 if test "$emacs_cv_arg6_star" = yes; then
2693 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2695 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2700 ### Start of font-backend (under any platform) section.
2701 # (nothing here yet -- this is a placeholder)
2702 ### End of font-backend (under any platform) section.
2704 ### Start of font-backend (under X11) section.
2705 if test "${HAVE_X11}" = "yes"; then
2706 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2708 ## Use -lXft if available, unless `--with-xft=no'.
2710 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2713 if test "x${with_xft}" != "xno"; then
2715 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2716 ## Because xftfont.c uses XRenderQueryExtension, we also
2717 ## need to link to -lXrender.
2719 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2720 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2721 OLD_CPPFLAGS="$CPPFLAGS"
2722 OLD_CFLAGS="$CFLAGS"
2724 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2725 CFLAGS="$CFLAGS $XFT_CFLAGS"
2726 XFT_LIBS="-lXrender $XFT_LIBS"
2727 LIBS="$XFT_LIBS $LIBS"
2728 AC_CHECK_HEADER(X11/Xft/Xft.h,
2729 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2730 [[#include <X11/X.h>]])
2732 if test "${HAVE_XFT}" = "yes"; then
2733 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2735 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2737 CPPFLAGS="$OLD_CPPFLAGS"
2738 CFLAGS="$OLD_CFLAGS"
2740 fi # "${HAVE_XFT}" = "yes"
2741 fi # "$HAVE_XFT" != no
2742 fi # "x${with_xft}" != "xno"
2744 ## We used to allow building with FreeType and without Xft.
2745 ## However, the ftx font backend driver is not in good shape.
2746 if test "$HAVE_XFT" != "yes"; then
2747 dnl For the "Does Emacs use" message at the end.
2751 dnl Strict linkers fail with
2752 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2753 dnl if -lfreetype is not specified.
2754 dnl The following is needed to set FREETYPE_LIBS.
2755 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2758 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2762 if test "${HAVE_FREETYPE}" = "yes"; then
2763 AC_DEFINE(HAVE_FREETYPE, 1,
2764 [Define to 1 if using the freetype and fontconfig libraries.])
2765 if test "${with_libotf}" != "no"; then
2766 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2768 if test "$HAVE_LIBOTF" = "yes"; then
2769 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2770 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2771 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2772 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2773 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2774 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2775 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2779 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2780 dnl Does the new font backend require it, or can it work without it?
2784 if test "${HAVE_LIBOTF}" = yes; then
2785 if test "${with_m17n_flt}" != "no"; then
2786 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2787 if test "$HAVE_M17N_FLT" = "yes"; then
2788 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2799 ### End of font-backend (under X11) section.
2801 AC_SUBST(FREETYPE_CFLAGS)
2802 AC_SUBST(FREETYPE_LIBS)
2803 AC_SUBST(FONTCONFIG_CFLAGS)
2804 AC_SUBST(FONTCONFIG_LIBS)
2805 AC_SUBST(LIBOTF_CFLAGS)
2806 AC_SUBST(LIBOTF_LIBS)
2807 AC_SUBST(M17N_FLT_CFLAGS)
2808 AC_SUBST(M17N_FLT_LIBS)
2810 ### Use -lXpm if available, unless `--with-xpm=no'.
2811 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2814 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2815 if test "${with_xpm}" != "no"; then
2816 SAVE_CPPFLAGS="$CPPFLAGS"
2817 SAVE_LDFLAGS="$LDFLAGS"
2818 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2819 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2820 AC_CHECK_HEADER(X11/xpm.h,
2821 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2822 if test "${HAVE_XPM}" = "yes"; then
2823 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2824 AC_EGREP_CPP(no_return_alloc_pixels,
2825 [#include "X11/xpm.h"
2826 #ifndef XpmReturnAllocPixels
2827 no_return_alloc_pixels
2829 ], HAVE_XPM=no, HAVE_XPM=yes)
2831 if test "${HAVE_XPM}" = "yes"; then
2832 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2836 CPPFLAGS="$SAVE_CPPFLAGS"
2837 LDFLAGS="$SAVE_LDFLAGS"
2842 if test "${HAVE_XPM}" = "yes"; then
2843 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2848 if test "${HAVE_X11}" = "yes"; then
2849 if test "${with_xpm}" != "no"; then
2850 AC_CHECK_HEADER(X11/xpm.h,
2851 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2852 if test "${HAVE_XPM}" = "yes"; then
2853 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2854 AC_EGREP_CPP(no_return_alloc_pixels,
2855 [#include "X11/xpm.h"
2856 #ifndef XpmReturnAllocPixels
2857 no_return_alloc_pixels
2859 ], HAVE_XPM=no, HAVE_XPM=yes)
2861 if test "${HAVE_XPM}" = "yes"; then
2869 if test "${HAVE_XPM}" = "yes"; then
2870 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2875 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2876 ### slightly different requirements wrt image libraries (it doesn't
2877 ### use -lXpm because it loads the xpm shared library dynamically at
2879 if test "${opsys}" = "mingw32"; then
2880 if test "${with_xpm}" != "no"; then
2881 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2885 if test "${HAVE_XPM}" = "yes"; then
2886 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2892 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2893 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2896 if test "${opsys}" = "mingw32"; then
2897 if test "${with_jpeg}" != "no"; then
2898 dnl Checking for jpeglib.h can lose because of a redefinition of
2900 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2902 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2903 if test "${HAVE_JPEG}" = "yes"; then
2904 AC_DEFINE(HAVE_JPEG)
2905 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2906 [#include <jpeglib.h>
2907 version=JPEG_LIB_VERSION
2909 [AC_DEFINE(HAVE_JPEG)],
2910 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2913 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2914 if test "${with_jpeg}" != "no"; then
2915 dnl Checking for jpeglib.h can lose because of a redefinition of
2917 AC_CHECK_HEADER(jerror.h,
2918 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2921 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2922 if test "${HAVE_JPEG}" = "yes"; then
2923 AC_DEFINE(HAVE_JPEG)
2924 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2925 [#include <jpeglib.h>
2926 version=JPEG_LIB_VERSION
2928 [AC_DEFINE(HAVE_JPEG)],
2929 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2932 if test "${HAVE_JPEG}" = "yes"; then
2938 ### Use -lpng if available, unless `--with-png=no'.
2939 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2942 if test "${opsys}" = "mingw32"; then
2943 if test "${with_png}" != "no"; then
2944 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2946 if test "${HAVE_PNG}" = "yes"; then
2947 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2949 AC_CHECK_DECL(png_longjmp,
2951 [AC_DEFINE(PNG_DEPSTRUCT, [],
2952 [Define to empty to suppress deprecation warnings when building
2953 with --enable-gcc-warnings and with libpng versions before 1.5,
2954 which lack png_longjmp.])],
2955 [[#ifdef HAVE_LIBPNG_PNG_H
2956 # include <libpng/png.h>
2962 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2963 if test "${with_png}" != "no"; then
2964 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2965 # in /usr/include/libpng.
2966 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2967 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2968 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2972 if test "${HAVE_PNG}" = "yes"; then
2973 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2974 LIBPNG="-lpng -lz -lm"
2976 AC_CHECK_DECL(png_longjmp,
2978 [AC_DEFINE(PNG_DEPSTRUCT, [],
2979 [Define to empty to suppress deprecation warnings when building
2980 with --enable-gcc-warnings and with libpng versions before 1.5,
2981 which lack png_longjmp.])],
2982 [[#ifdef HAVE_LIBPNG_PNG_H
2983 # include <libpng/png.h>
2994 if test "${with_zlib}" != "no"; then
2996 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
2998 case $ac_cv_search_inflateEnd in
2999 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3002 if test "${HAVE_ZLIB}" = "yes"; then
3003 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3004 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3005 if test "${opsys}" = "mingw32"; then
3012 ### Use -ltiff if available, unless `--with-tiff=no'.
3013 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3016 if test "${opsys}" = "mingw32"; then
3017 if test "${with_tiff}" != "no"; then
3018 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3020 if test "${HAVE_TIFF}" = "yes"; then
3021 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3023 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3024 if test "${with_tiff}" != "no"; then
3025 AC_CHECK_HEADER(tiffio.h,
3027 # At least one tiff package requires the jpeg library.
3028 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3029 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3032 if test "${HAVE_TIFF}" = "yes"; then
3033 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3034 dnl FIXME -lz -lm, as per libpng?
3040 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3041 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3044 if test "${opsys}" = "mingw32"; then
3045 if test "${with_gif}" != "no"; then
3046 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3048 if test "${HAVE_GIF}" = "yes"; then
3049 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3051 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3052 || test "${HAVE_W32}" = "yes"; then
3053 AC_CHECK_HEADER(gif_lib.h,
3054 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3055 # Earlier versions can crash Emacs.
3056 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3058 if test "$HAVE_GIF" = yes; then
3060 elif test "$HAVE_GIF" = maybe; then
3061 # If gif_lib.h but no libgif, try libungif.
3062 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3063 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3066 if test "${HAVE_GIF}" = "yes"; then
3067 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3072 dnl Check for required libraries.
3073 if test "${HAVE_X11}" = "yes"; then
3076 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3077 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3078 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3079 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3080 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3081 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3082 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3083 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3084 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3085 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3087 if test "X${MISSING}" != X; then
3088 AC_MSG_ERROR([The following required libraries were not found:
3090 Maybe some development libraries/packages are missing?
3091 If you don't want to link with them give
3093 as options to configure])
3097 ### Use -lgpm if available, unless `--with-gpm=no'.
3100 if test "${with_gpm}" != "no"; then
3101 AC_CHECK_HEADER(gpm.h,
3102 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3104 if test "${HAVE_GPM}" = "yes"; then
3105 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3111 dnl Check for malloc/malloc.h on darwin
3112 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3115 ### Use NeXTstep API to implement GUI.
3116 if test "${HAVE_NS}" = "yes"; then
3117 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3118 if test "${NS_IMPL_COCOA}" = "yes"; then
3119 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3121 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3122 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3123 # See also .m.o rule in Makefile.in */
3124 # FIXME: are all these flags really needed? Document here why. */
3125 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3126 ## Extra CFLAGS applied to src/*.m files.
3127 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3129 # We also have mouse menus.
3134 if test "${HAVE_W32}" = "yes"; then
3138 ### Use session management (-lSM -lICE) if available
3141 if test "${HAVE_X11}" = "yes"; then
3142 AC_CHECK_HEADER(X11/SM/SMlib.h,
3143 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3145 if test "${HAVE_X_SM}" = "yes"; then
3146 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3150 *) LIBS="$LIBXSM $LIBS" ;;
3156 ### Use XRandr (-lXrandr) if available
3158 if test "${HAVE_X11}" = "yes"; then
3159 XRANDR_REQUIRED=1.2.2
3160 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3161 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3162 if test $HAVE_XRANDR = no; then
3163 # Test old way in case pkg-config doesn't have it (older machines).
3164 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3165 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3166 if test $HAVE_XRANDR = yes; then
3167 XRANDR_LIBS=-lXrandr
3168 AC_SUBST(XRANDR_LIBS)
3171 if test $HAVE_XRANDR = yes; then
3172 SAVE_CFLAGS="$CFLAGS"
3174 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3175 LIBS="$XRANDR_LIBS $LIBS"
3176 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3177 CFLAGS="$SAVE_CFLAGS"
3180 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3184 ### Use Xinerama (-lXinerama) if available
3186 if test "${HAVE_X11}" = "yes"; then
3187 XINERAMA_REQUIRED=1.0.2
3188 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3189 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3191 if test $HAVE_XINERAMA = no; then
3192 # Test old way in case pkg-config doesn't have it (older machines).
3193 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3194 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3195 if test $HAVE_XINERAMA = yes; then
3196 XINERAMA_LIBS=-lXinerama
3197 AC_SUBST(XINERAMA_LIBS)
3200 if test $HAVE_XINERAMA = yes; then
3201 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3206 ### Use libxml (-lxml2) if available
3207 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3209 if test "${with_xml2}" != "no"; then
3210 ### I'm not sure what the version number should be, so I just guessed.
3211 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3212 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3213 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3214 SAVE_CPPFLAGS="$CPPFLAGS"
3215 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3216 AC_CHECK_HEADER(libxml/HTMLparser.h,
3217 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3218 [#include <libxml/HTMLparser.h>])])
3219 CPPFLAGS="$SAVE_CPPFLAGS"
3220 if test "${HAVE_LIBXML2}" = "yes"; then
3221 LIBXML2_LIBS="-lxml2"
3222 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3225 if test "${HAVE_LIBXML2}" = "yes"; then
3226 if test "${opsys}" != "mingw32"; then
3227 LIBS="$LIBXML2_LIBS $LIBS"
3228 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3232 if test "${HAVE_LIBXML2}" = "yes"; then
3233 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3240 AC_SUBST(LIBXML2_LIBS)
3241 AC_SUBST(LIBXML2_CFLAGS)
3243 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3244 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3245 if test "${opsys}" = "mingw32"; then
3246 emacs_cv_netdb_declares_h_errno=yes
3248 AC_CACHE_CHECK(whether netdb declares h_errno,
3249 emacs_cv_netdb_declares_h_errno,
3250 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3251 [[return h_errno;]])],
3252 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3253 if test $emacs_cv_netdb_declares_h_errno = yes; then
3254 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3257 # sqrt and other floating-point functions such as fmod and frexp
3258 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3259 if test "${opsys}" != "mingw32"; then
3260 AC_CHECK_LIB(m, sqrt)
3263 # Check for mail-locking functions in a "mail" library. Probably this should
3264 # have the same check as for liblockfile below.
3265 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3266 if test $have_mail = yes; then
3268 LIBS="$LIBS_MAIL $LIBS"
3269 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3273 dnl Debian, at least:
3274 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3275 if test $have_lockfile = yes; then
3276 LIBS_MAIL=-llockfile
3277 LIBS="$LIBS_MAIL $LIBS"
3278 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3280 # If we have the shared liblockfile, assume we must use it for mail
3281 # locking (e.g. Debian). If we couldn't link against liblockfile
3282 # (no liblockfile.a installed), ensure that we don't need to.
3283 dnl This works for files generally, not just executables.
3284 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3285 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3286 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3287 if test $ac_cv_prog_liblockfile = yes; then
3288 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3289 This probably means that movemail could lose mail.
3290 There may be a `development' package to install containing liblockfile.])
3293 AC_CHECK_HEADERS_ONCE(maillock.h)
3296 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3297 ## interlock access to the mail spool. The alternative is a lock file named
3298 ## /usr/spool/mail/$USER.lock.
3301 aix4-2) mail_lock="lockf" ;;
3303 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3305 ## On GNU/Linux systems, both methods are used by various mail programs.
3306 ## I assume most people are using newer mailers that have heard of flock.
3307 ## Change this if you need to.
3308 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3309 ## configure gets the right answers, and that means *NOT* using flock.
3310 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3311 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3312 ## Debian maintainer hasn't provided a clean fix for Emacs.
3313 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3314 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3315 ## correct logic. -- fx
3316 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3317 ## liblockfile is a Free Software replacement for libmail, used on
3318 ## Debian systems and elsewhere. -rfr.
3321 if test $have_mail = yes || test $have_lockfile = yes; then
3322 test $ac_cv_header_maillock_h = yes && mail_lock=no
3327 mail_lock="none-needed" ;;
3331 case "$mail_lock" in
3332 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3334 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3338 *) BLESSMAIL_TARGET="need-blessmail" ;;
3340 AC_SUBST(BLESSMAIL_TARGET)
3343 AC_CHECK_FUNCS(accept4 gethostname \
3344 getrusage get_current_dir_name \
3346 select getpagesize setlocale \
3347 getrlimit setrlimit shutdown getaddrinfo \
3348 strsignal setitimer \
3349 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3350 gai_strerror getline getdelim sync \
3351 difftime posix_memalign \
3352 getpwent endpwent getgrent endgrent \
3354 cfmakeraw cfsetspeed copysign __executable_start log2)
3356 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3357 ## has a broken `rint' in some library versions including math library
3358 ## version number A.09.05.
3359 ## You can fix the math library by installing patch number PHSS_4630.
3360 ## But we can fix it more reliably for Emacs by just not using rint.
3361 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3364 *) AC_CHECK_FUNCS(random rint) ;;
3367 dnl Cannot use AC_CHECK_FUNCS
3368 AC_CACHE_CHECK([for __builtin_unwind_init],
3369 emacs_cv_func___builtin_unwind_init,
3370 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3371 emacs_cv_func___builtin_unwind_init=yes,
3372 emacs_cv_func___builtin_unwind_init=no)])
3373 if test $emacs_cv_func___builtin_unwind_init = yes; then
3374 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3375 [Define to 1 if you have the `__builtin_unwind_init' function.])
3378 AC_CHECK_HEADERS_ONCE(sys/un.h)
3383 AC_CHECK_FUNCS(grantpt)
3385 # PTY-related GNU extensions.
3386 AC_CHECK_FUNCS(getpt posix_openpt)
3388 # Check this now, so that we will NOT find the above functions in ncurses.
3389 # That is because we have not set up to link ncurses in lib-src.
3390 # It's better to believe a function is not available
3391 # than to expect to find it in ncurses.
3392 # Also we need tputs and friends to be able to build at all.
3393 AC_MSG_CHECKING([for library containing tputs])
3394 # Run a test program that contains a call to tputs, a call that is
3395 # never executed. This tests whether a pre-'main' dynamic linker
3396 # works with the library. It's too much trouble to actually call
3397 # tputs in the test program, due to portability hassles. When
3398 # cross-compiling, assume the test program will run if it links.
3399 AC_DEFUN([tputs_link_source], [
3401 [[extern void tputs (const char *, int, int (*)(int));
3402 int main (int argc, char **argv)
3405 tputs (argv[0], 0, 0);
3409 if test "${opsys}" = "mingw32"; then
3412 # Maybe curses should be tried earlier?
3413 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3414 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3416 if test -z "$tputs_library"; then
3420 LIBS_TERMCAP=-l$tputs_library
3422 LIBS="$LIBS_TERMCAP $LIBS"
3424 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3425 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3427 if test "X$msg" != Xno; then
3432 AC_MSG_RESULT([$msg])
3433 if test "X$msg" = Xno; then
3434 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3435 The following libraries were tried (in order):
3436 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3437 Please try installing whichever of these libraries is most appropriate
3438 for your system, together with its header files.
3439 For example, a libncurses-dev(el) or similar package.])
3442 ## Use termcap instead of terminfo?
3443 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3445 ## FIXME? In the cases below where we unconditionally set
3446 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3447 ## if that was found above to have tputs.
3448 ## Should we use the gnu* logic everywhere?
3450 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3451 ## The ncurses library has been moved out of the System framework in
3452 ## Mac OS X 10.2. So if configure detects it, set the command-line
3453 ## option to use it.
3454 darwin) LIBS_TERMCAP="-lncurses" ;;
3456 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3459 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3460 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3461 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3462 [[#if __FreeBSD_version < 400000
3465 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3467 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3469 if test $emacs_cv_freebsd_terminfo = yes; then
3470 LIBS_TERMCAP="-lncurses"
3473 LIBS_TERMCAP="-ltermcap"
3483 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3485 LIBS_TERMCAP="-ltermcap"
3489 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3491 ## hpux: Make sure we get select from libc rather than from libcurses
3492 ## because libcurses on HPUX 10.10 has a broken version of select.
3493 ## We used to use -lc -lcurses, but this may be cleaner.
3494 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3495 # set that way, now it uses the default). Isn't this a contradiction?
3496 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3500 TERMCAP_OBJ=tparam.o
3501 if test $TERMINFO = yes; then
3502 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3503 TERMCAP_OBJ=terminfo.o
3505 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3506 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3508 AC_SUBST(LIBS_TERMCAP)
3509 AC_SUBST(TERMCAP_OBJ)
3512 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3513 # On Darwin, res_init appears not to be useful: see bug#562 and
3514 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3517 if test $opsys != darwin; then
3519 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3520 #include <arpa/nameser.h>
3521 #include <resolv.h>]],
3522 [[return res_init();]])],
3523 have_res_init=yes, have_res_init=no)
3524 if test "$have_res_init" = no; then
3526 LIBS="$LIBS -lresolv"
3527 AC_MSG_CHECKING(for res_init with -lresolv)
3528 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3529 #include <arpa/nameser.h>
3530 #include <resolv.h>]],
3531 [[return res_init();]])],
3532 have_res_init=yes, have_res_init=no)
3533 AC_MSG_RESULT($have_res_init)
3534 if test "$have_res_init" = yes ; then
3540 if test "$have_res_init" = yes; then
3541 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3545 # Do we need the Hesiod library to provide the support routines?
3546 dnl FIXME? Should we be skipping this on Darwin too?
3548 if test "$with_hesiod" != no ; then
3549 # Don't set $LIBS here -- see comments above. FIXME which comments?
3550 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3551 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3552 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3553 if test "$resolv" = yes ; then
3558 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3559 hesiod=yes, :, $RESOLVLIB)])
3561 if test x"$hesiod" = xyes; then
3567 # Do we need libresolv (due to res_init or Hesiod)?
3568 if test "$resolv" = yes && test $opsys != darwin; then
3575 # These tell us which Kerberos-related libraries to use.
3582 if test "${with_kerberos}" != no; then
3583 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3584 if test $have_com_err = yes; then
3585 COM_ERRLIB=-lcom_err
3586 LIBS="$COM_ERRLIB $LIBS"
3588 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3589 if test $have_crypto = yes; then
3591 LIBS="$CRYPTOLIB $LIBS"
3593 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3594 if test $have_k5crypto = yes; then
3595 CRYPTOLIB=-lk5crypto
3596 LIBS="$CRYPTOLIB $LIBS"
3598 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3599 if test $have_krb5=yes; then
3601 LIBS="$KRB5LIB $LIBS"
3603 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3604 if test "${with_kerberos5}" = no; then
3605 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3606 if test $have_des425 = yes; then
3608 LIBS="$DESLIB $LIBS"
3610 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3611 if test $have_des = yes; then
3613 LIBS="$DESLIB $LIBS"
3616 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3617 if test $have_krb4 = yes; then
3619 LIBS="$KRB4LIB $LIBS"
3621 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3622 if test $have_krb = yes; then
3624 LIBS="$KRB4LIB $LIBS"
3629 if test "${with_kerberos5}" != no; then
3630 AC_CHECK_HEADERS(krb5.h,
3631 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3632 [#include <krb5.h>])])
3634 AC_CHECK_HEADERS(krb.h,,
3635 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3636 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3638 AC_CHECK_HEADERS(com_err.h)
3641 AC_SUBST(COM_ERRLIB)
3647 AC_CHECK_FUNCS_ONCE(tzset)
3648 AC_MSG_CHECKING(whether localtime caches TZ)
3649 AC_CACHE_VAL(emacs_cv_localtime_cache,
3650 [if test x$ac_cv_func_tzset = xyes; then
3651 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3652 char TZ_GMT0[] = "TZ=GMT0";
3653 char TZ_PST8[] = "TZ=PST8";
3656 time_t now = time ((time_t *) 0);
3657 int hour_GMT0, hour_unset;
3658 if (putenv (TZ_GMT0) != 0)
3660 hour_GMT0 = localtime (&now)->tm_hour;
3662 hour_unset = localtime (&now)->tm_hour;
3663 if (putenv (TZ_PST8) != 0)
3665 if (localtime (&now)->tm_hour == hour_GMT0)
3668 if (localtime (&now)->tm_hour != hour_unset)
3671 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3672 [# If we have tzset, assume the worst when cross-compiling.
3673 emacs_cv_localtime_cache=yes])
3675 # If we lack tzset, report that localtime does not cache TZ,
3676 # since we can't invalidate the cache if we don't have tzset.
3677 emacs_cv_localtime_cache=no
3679 AC_MSG_RESULT($emacs_cv_localtime_cache)
3680 if test $emacs_cv_localtime_cache = yes; then
3681 AC_DEFINE(LOCALTIME_CACHE, 1,
3682 [Define to 1 if localtime caches TZ.])
3686 AC_CHECK_FUNC(socket, , ok_so_far=no)
3687 if test $ok_so_far = yes; then
3688 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3690 if test $ok_so_far = yes; then
3691 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3693 if test $ok_so_far = yes; then
3694 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3695 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3696 [Define to 1 if you have inet sockets.])
3699 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3700 dnl This can be removed once we assume Autoconf 2.70.
3702 *-solaris2.4 | *-solaris2.4.*)
3703 dnl Disable the Autoconf-generated vfork test.
3704 : ${ac_cv_func_vfork_works=no};;
3709 AC_CHECK_FUNCS(snprintf)
3711 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3714 AC_MSG_CHECKING([whether GLib is linked in])
3715 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3718 [[g_print ("Hello world");]])],
3721 AC_MSG_RESULT([$links_glib])
3722 if test "${links_glib}" = "yes"; then
3723 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3724 if test "$HAVE_NS" = no;then
3730 dnl Adapted from Haible's version.
3731 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3732 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3733 [[char* cs = nl_langinfo(CODESET);]])],
3734 emacs_cv_langinfo_codeset=yes,
3735 emacs_cv_langinfo_codeset=no)
3737 if test $emacs_cv_langinfo_codeset = yes; then
3738 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3739 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3744 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3745 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3746 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3747 if test "$emacs_cv_c_restrict_arr" = yes; then
3748 AC_DEFINE(__restrict_arr, __restrict,
3749 [Define to compiler's equivalent of C99 restrict keyword in array
3750 declarations. Define as empty for no equivalent.])
3753 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3754 dnl how the tty code is related to POSIX and/or other versions of termios.
3755 dnl The following looks like a useful start.
3757 dnl AC_SYS_POSIX_TERMIOS
3758 dnl if test $ac_cv_sys_posix_termios = yes; then
3759 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3760 dnl and macros for terminal control.])
3761 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3764 dnl Turned on June 1996 supposing nobody will mind it.
3765 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3766 if test "${opsys}" != "mingw32"; then
3767 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3768 in the full name stands for the login id.])
3771 dnl Every platform that uses configure supports this.
3772 dnl There is a create-lockfiles option you can
3773 dnl customize if you do not want the lock files to be written.
3774 dnl So it is not clear that this #define still needs to exist.
3775 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3776 so that Emacs can tell instantly when you try to modify a file that
3777 someone else has modified in his/her Emacs.])
3779 dnl Everybody supports this, except MS.
3780 dnl Seems like the kind of thing we should be testing for, though.
3781 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3782 if test "${opsys}" != "mingw32"; then
3783 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3786 dnl Everybody supports this, except MS-DOS.
3787 dnl Seems like the kind of thing we should be testing for, though.
3788 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3789 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3790 4.2-compatible sockets.])
3792 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3794 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3795 a null file, or a data sink.])
3796 if test "${opsys}" = "mingw32"; then
3797 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3799 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3802 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3803 if test "${opsys}" = "mingw32"; then
3804 AC_DEFINE(SEPCHAR, [';'])
3806 AC_DEFINE(SEPCHAR, [':'])
3809 dnl Everybody supports this, except MS-DOS.
3810 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3812 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3815 AC_DEFINE(DIRECTORY_SEP, ['/'],
3816 [Character that separates directories in a file name.])
3818 if test "${opsys}" = "mingw32"; then
3819 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3820 [Returns true if character is a device separator.])
3822 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3823 [Returns true if character is a directory separator.])
3825 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3826 [Returns true if character is any form of separator.])
3828 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3829 [Returns true if character is a device separator.])
3831 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3832 [Returns true if character is a directory separator.])
3834 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3835 [Returns true if character is any form of separator.])
3838 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3842 dnl Unfortunately without libXmu we cannot support EditRes.
3843 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3844 AC_DEFINE(NO_EDITRES, 1)
3849 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3850 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3851 AC_DEFINE(NO_EDITRES, 1)
3857 irix6-5 | sol2* | unixware )
3858 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3859 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3860 dnl need the constant to dimension an array. So wire in the appropriate
3862 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3866 emacs_broken_SIGIO=no
3869 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3870 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3871 hpux* | irix6-5 | openbsd | sol2* | unixware )
3872 emacs_broken_SIGIO=yes
3876 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3877 dnl the way this system works, libc functions that return malloced
3878 dnl memory use the libc malloc implementation. Calling xfree or
3879 dnl xrealloc on the results of such functions results in a crash.
3881 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3882 dnl but that does not currently work on this system.
3884 dnl It is possible to completely override the malloc implementation on
3885 dnl AIX, but that involves putting the malloc functions in a shared
3886 dnl library and setting the MALLOCTYPE environment variable to point to
3887 dnl that shared library.
3889 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3890 dnl to avoid a crash just use the Emacs implementation for that function.
3892 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3893 dnl of this file, so that we do not check for get_current_dir_name
3894 dnl on AIX. But that might be fragile if something else ends
3895 dnl up testing for get_current_dir_name as a dependency.
3896 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3897 get_current_dir_name should not be used.])
3901 dnl Circumvent a bug in FreeBSD. In the following sequence of
3902 dnl writes/reads on a PTY, read(2) returns bogus data:
3904 dnl write(2) 1022 bytes
3905 dnl write(2) 954 bytes, get EAGAIN
3906 dnl read(2) 1024 bytes in process_read_output
3907 dnl read(2) 11 bytes in process_read_output
3909 dnl That is, read(2) returns more bytes than have ever been written
3910 dnl successfully. The 1033 bytes read are the 1022 bytes written
3911 dnl successfully after processing (for example with CRs added if the
3912 dnl terminal is set up that way which it is here). The same bytes will
3913 dnl be seen again in a later read(2), without the CRs.
3914 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3915 work around an issue when reading from a PTY.])
3921 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3922 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3927 darwin | dragonfly | freebsd | netbsd | openbsd )
3928 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3929 close a pty to make it a controlling terminal (it is already a
3930 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3934 dnl FIXME Surely we can test for this rather than hard-code it.
3936 netbsd | openbsd) sound_device="/dev/audio" ;;
3937 *) sound_device="/dev/dsp" ;;
3941 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3942 [Name of the default sound device.])
3945 dnl Emacs can read input using SIGIO and buffering characters itself,
3946 dnl or using CBREAK mode and making C-g cause SIGINT.
3947 dnl The choice is controlled by the variable interrupt_input.
3949 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3951 dnl Emacs uses the presence of the USABLE_SIGIO macro
3952 dnl to indicate whether or not signal-driven I/O is possible. It uses
3953 dnl INTERRUPT_INPUT to decide whether to use it by default.
3955 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3956 dnl CBREAK mode has two disadvantages
3957 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3958 dnl I hear that in system V this problem does not exist.
3959 dnl 2) Control-G causes output to be discarded.
3960 dnl I do not know whether this can be fixed in system V.
3962 dnl Another method of doing input is planned but not implemented.
3963 dnl It would have Emacs fork off a separate process
3964 dnl to read the input and send it to the true Emacs process
3967 darwin | gnu-linux | gnu-kfreebsd )
3968 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3973 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3974 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3975 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3976 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3977 dnl taking float or double parameters.
3979 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3980 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3981 file defines `NeedWidePrototypes' as `NO'.])
3986 dnl Used in process.c, this must be a loop, even if it only runs once.
3987 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3988 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3989 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3990 dnl trying suffixes 0-16.
3991 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3992 first PTY, if PTYs are supported.])
3993 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3994 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3995 end of a PTY, if non-standard.])
3996 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3997 end of a PTY, if non-standard.])
4001 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4002 dnl You allocate a pty by opening /dev/ptc to get the master side.
4003 dnl To get the name of the slave side, you just ttyname() the master side.
4004 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4005 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4009 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4010 dnl multi-line AC_DEFINEs are hard. :(
4011 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)])
4012 AC_DEFINE(PTY_NAME_SPRINTF, [])
4013 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4016 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4018 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4019 dnl Not used, because PTY_ITERATION is defined.
4020 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4021 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4022 dnl But we don't have to block SIGCHLD because it is blocked in the
4023 dnl implementation of grantpt.
4024 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4025 AC_DEFINE(PTY_NAME_SPRINTF, [])
4026 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4030 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4033 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4035 if test "x$ac_cv_func_grantpt" = xyes; then
4036 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4037 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4038 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4039 dnl to prevent sigchld_handler from intercepting the child's death.
4040 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); }])
4041 dnl if HAVE_POSIX_OPENPT
4042 if test "x$ac_cv_func_posix_openpt" = xyes; then
4043 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4044 AC_DEFINE(PTY_NAME_SPRINTF, [])
4046 elif test "x$ac_cv_func_getpt" = xyes; then
4047 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4048 AC_DEFINE(PTY_NAME_SPRINTF, [])
4050 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4053 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4058 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4059 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4060 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4064 dnl It looks like this cannot be right, because it is not a loop.
4065 dnl However, process.c actually does this:
4071 dnl which presumably makes it OK, since irix == sgi (?).
4072 dnl FIXME it seems like this special treatment is unnecessary?
4073 dnl Why can't irix use a single-trip loop like eg cygwin?
4074 AC_DEFINE(PTY_ITERATION, [])
4075 dnl Not used, because PTY_ITERATION is defined.
4076 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4077 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); }])
4078 dnl No need to get the pty name at all.
4079 AC_DEFINE(PTY_NAME_SPRINTF, [])
4080 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4081 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4085 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4086 dnl from intercepting that death. If any child but grantpt's should die
4087 dnl within, it should be caught after sigrelse(2).
4088 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); }])
4092 dnl Comments are as per sol2*.
4093 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); }])
4100 dnl This change means that we don't loop through allocate_pty too
4101 dnl many times in the (rare) event of a failure.
4102 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4103 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4104 dnl Push various streams modules onto a PTY channel. Used in process.c.
4105 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.])
4110 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4111 "typing" a signal character on the pty.])
4114 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4115 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4116 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4117 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4120 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4121 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4122 gnu-linux | gnu-kfreebsd )
4124 AC_MSG_CHECKING([for signals via characters])
4125 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4126 #include <linux/version.h>
4127 #if LINUX_VERSION_CODE < 0x20400
4128 # error "Linux version too old"
4130 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4132 AC_MSG_RESULT([$emacs_signals_via_chars])
4133 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4138 dnl Used in lisp.h, emacs.c, vm-limit.c
4139 dnl NEWS.18 describes this as "a number which contains
4140 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4141 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4142 stored in a Lisp_Object.])
4143 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4147 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4148 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4151 dnl The data segment on this machine always starts at address 0x40000000.
4152 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4155 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4160 AH_TEMPLATE(TAB3, [Undocumented.])
4163 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4165 gnu | dragonfly | freebsd | netbsd | openbsd )
4166 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4167 AC_DEFINE(TAB3, OXTABS)
4170 gnu-linux | gnu-kfreebsd )
4171 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4175 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4176 [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)],
4177 [Mark a secondary stack, like the register stack on the ia64.]), [])
4181 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4182 run_time_remap; for HPUX.])
4187 dnl This won't be used automatically yet. We also need to know, at least,
4188 dnl that the stack is continuous.
4189 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4190 registers relevant for conservative garbage collection in the jmp_buf.])
4194 dnl Not all the architectures are tested, but there are Debian packages
4195 dnl for SCM and/or Guile on them, so the technique must work. See also
4196 dnl comments in alloc.c concerning setjmp and gcc.
4197 dnl Fixme: it's probably safe to just use the GCC conditional below.
4198 gnu-linux | gnu-kfreebsd )
4199 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4200 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4201 || defined __alpha__ || defined __mips__ || defined __s390__ \
4202 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4203 || defined __ia64__ || defined __sh__
4206 # error "setjmp not known to work on this arch"
4208 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4213 if test x$GCC = xyes; then
4214 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4215 AC_DEFINE(GC_SETJMP_WORKS, 1)
4218 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4219 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4220 AC_DEFINE(GC_SETJMP_WORKS, 1)
4225 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4226 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4229 [[#include <setjmp.h>
4231 # define _longjmp longjmp
4236 _longjmp (j, 1);]])],
4237 [emacs_cv_func__setjmp=yes],
4238 [emacs_cv_func__setjmp=no])])
4239 if test $emacs_cv_func__setjmp = yes; then
4240 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4242 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4245 [[#include <setjmp.h>
4248 if (! sigsetjmp (j, 1))
4249 siglongjmp (j, 1);]])],
4250 [emacs_cv_func_sigsetjmp=yes],
4251 [emacs_cv_func_sigsetjmp=no])])
4252 if test $emacs_cv_func_sigsetjmp = yes; then
4253 AC_DEFINE([HAVE_SIGSETJMP], 1,
4254 [Define to 1 if sigsetjmp and siglongjmp work.
4255 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4261 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4262 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4263 dnl and this is all we need.
4264 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4271 dnl Used in xfaces.c.
4272 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4273 some systems, where it requires time.h.])
4278 dnl Define symbols to identify the version of Unix this is.
4279 dnl Define all the symbols that apply correctly.
4280 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4281 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4282 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4283 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4288 dnl This symbol should be defined on AIX Version 3 ???????
4289 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4291 # error "_AIX not defined"
4293 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4297 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4301 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4302 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4303 dnl distinguish OS X from pure Darwin.
4304 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4307 gnu-linux | gnu-kfreebsd )
4309 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4314 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4319 AC_DEFINE(USG5_4, [])
4320 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4324 AC_DEFINE(DOS_NT, [])
4325 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4326 if test "x$ac_enable_checking" != "x" ; then
4327 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4333 AC_DEFINE(USG5_4, [])
4334 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4339 AC_DEFINE(USG5_4, [])
4343 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4346 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4347 emacs_cv_usable_FIONREAD=no
4351 emacs_cv_usable_FIONREAD=yes
4356 [AC_LANG_PROGRAM([[#include <sys/types.h>
4357 #include <sys/ioctl.h>
4359 # include <sys/filio.h>
4362 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4363 [emacs_cv_usable_FIONREAD=yes],
4364 [emacs_cv_usable_FIONREAD=no])
4367 if test $emacs_cv_usable_FIONREAD = yes; then
4368 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4370 if test $emacs_broken_SIGIO = no; then
4371 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4373 [AC_LANG_PROGRAM([[#include <fcntl.h>
4376 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4377 [emacs_cv_usable_SIGIO=yes],
4378 [emacs_cv_usable_SIGIO=no])],
4379 [emacs_cv_usable_SIGIO=yes],
4380 [emacs_cv_usable_SIGIO=no])
4381 if test $emacs_cv_usable_SIGIO = yes; then
4382 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4389 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4390 dnl and on Cygwin prior to version 1.7.24 that becomes the
4391 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4392 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4393 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4394 dnl needed starting with cygwin-1.7.24, and it is no longer
4395 dnl effective starting with glib-2.36. */
4397 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4398 G_SLICE environment variable to "always-malloc" at startup.])
4402 dnl It works to open the pty's tty in the parent (Emacs), then
4403 dnl close and reopen it in the child.
4404 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4405 works to open a pty's tty in the parent process, then close and
4406 reopen it in the child.])
4410 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4411 use VSUSP instead of VSWTCH.])
4415 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4420 # Set up the CFLAGS for real compilation, so we can substitute it.
4421 CFLAGS="$REAL_CFLAGS"
4422 CPPFLAGS="$REAL_CPPFLAGS"
4424 ## Hack to detect a buggy GCC version.
4425 if test "x$GCC" = xyes \
4426 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4427 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4428 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4429 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4432 version=$PACKAGE_VERSION
4434 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4435 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4436 [Short copyright string for this version of Emacs.])
4439 ### Specify what sort of things we'll be editing into Makefile and config.h.
4440 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4442 AC_SUBST(configuration)
4447 AC_SUBST(exec_prefix)
4450 AC_SUBST(sharedstatedir)
4451 AC_SUBST(libexecdir)
4456 AC_SUBST(standardlisppath)
4457 AC_SUBST(locallisppath)
4459 AC_SUBST(x_default_search_path)
4461 AC_SUBST(archlibdir)
4466 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4467 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4468 ## end of LIBX_BASE, but nothing ever set it.
4469 AC_SUBST(LD_SWITCH_X_SITE)
4470 AC_SUBST(C_SWITCH_X_SITE)
4471 AC_SUBST(GNUSTEP_CFLAGS)
4473 ## Used in lwlib/Makefile.in.
4474 AC_SUBST(X_TOOLKIT_TYPE)
4476 AC_SUBST(ns_appbindir)
4477 AC_SUBST(ns_appresdir)
4479 AC_SUBST(GNU_OBJC_CFLAGS)
4480 AC_SUBST(OTHER_FILES)
4482 if test -n "${term_header}"; then
4483 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4484 [Define to the header for the built-in window system.])
4487 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4488 [Define to the canonical Emacs configuration name.])
4489 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4490 [Define to the options passed to configure.])
4491 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4492 define this to include extra configuration information.])
4496 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4503 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4504 AC_DEFINE(HAVE_X_WINDOWS, 1,
4505 [Define to 1 if you want to use the X window system.])
4507 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4509 if test "$HAVE_XFT" = "yes"; then
4510 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4511 elif test "$HAVE_FREETYPE" = "yes"; then
4512 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4522 if test "${USE_X_TOOLKIT}" != "none" ; then
4524 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4525 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4526 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4527 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4528 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4532 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4533 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4537 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4538 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4539 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4543 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4544 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4547 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4550 AC_SUBST(WIDGET_OBJ)
4553 case "$USE_X_TOOLKIT" in
4554 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4555 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4556 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4558 AC_SUBST(TOOLKIT_LIBW)
4560 if test "${opsys}" != "mingw32"; then
4561 if test "$USE_X_TOOLKIT" = "none"; then
4562 LIBXT_OTHER="\$(LIBXSM)"
4563 OLDXMENU_TARGET="really-oldXMenu"
4565 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4566 OLDXMENU_TARGET="really-lwlib"
4569 AC_SUBST(LIBXT_OTHER)
4571 ## The X Menu stuff is present in the X10 distribution, but missing
4572 ## from X11. If we have X10, just use the installed library;
4573 ## otherwise, use our own copy.
4574 if test "${HAVE_X11}" = "yes" ; then
4575 AC_DEFINE(HAVE_X11, 1,
4576 [Define to 1 if you want to use version 11 of X windows.
4577 Otherwise, Emacs expects to use version 10.])
4579 if test "$USE_X_TOOLKIT" = "none"; then
4580 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4582 OLDXMENU="\${lwlibdir}/liblw.a"
4584 LIBXMENU="\$(OLDXMENU)"
4585 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4586 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4588 ## For a syntactically valid Makefile; not actually used for anything.
4589 ## See comments in src/Makefile.in.
4591 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4592 if test "${HAVE_X_WINDOWS}" = "yes"; then
4601 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4608 AC_SUBST(OLDXMENU_TARGET)
4611 AC_SUBST(LIBX_OTHER)
4612 AC_SUBST(OLDXMENU_DEPS)
4614 if test "${HAVE_MENUS}" = "yes" ; then
4615 AC_DEFINE(HAVE_MENUS, 1,
4616 [Define to 1 if you have mouse menus.
4617 (This is automatic if you use X, but the option to specify it remains.)
4618 It is also defined with other window systems that support xmenu.c.])
4621 if test "${GNU_MALLOC}" = "yes" ; then
4622 AC_DEFINE(GNU_MALLOC, 1,
4623 [Define to 1 if you want to use the GNU memory allocator.])
4627 if test "${REL_ALLOC}" = "yes" ; then
4628 AC_DEFINE(REL_ALLOC, 1,
4629 [Define REL_ALLOC if you want to use the relocating allocator for
4632 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4634 AC_SUBST(RALLOC_OBJ)
4636 if test "$opsys" = "cygwin"; then
4637 CYGWIN_OBJ="sheap.o cygw32.o"
4638 ## Cygwin differs because of its unexec().
4640 POST_ALLOC_OBJ=lastfile.o
4641 elif test "$opsys" = "mingw32"; then
4644 POST_ALLOC_OBJ=lastfile.o
4647 PRE_ALLOC_OBJ=lastfile.o
4650 AC_SUBST(CYGWIN_OBJ)
4651 AC_SUBST(PRE_ALLOC_OBJ)
4652 AC_SUBST(POST_ALLOC_OBJ)
4654 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4655 # it temporarily reverts them to their pre-pkg-config values,
4656 # because gnulib needs to work with both src (which uses the
4657 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4658 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4659 # and it therefore needs to run in an environment where LIBS does not
4660 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4661 # for some package unrelated to lib-src.
4664 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4665 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4666 gl_ASSERT_NO_GNULIB_POSIXCHECK
4667 gl_ASSERT_NO_GNULIB_TESTS
4672 if test "${opsys}" = "mingw32"; then
4673 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4674 # Remove unneeded switches from the value of CC that goes to Makefiles
4675 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4679 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4682 ## The -headerpad option tells ld (see man page) to leave room at the
4683 ## end of the header for adding load commands. Needed for dumping.
4684 ## 0x690 is the total size of 30 segment load commands (at 56
4685 ## each); under Cocoa 31 commands are required.
4686 if test "$HAVE_NS" = "yes"; then
4687 libs_nsgui="-framework AppKit"
4688 if test "$NS_IMPL_COCOA" = "yes"; then
4689 libs_nsgui="$libs_nsgui -framework IOKit"
4696 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4698 ## This is here because src/Makefile.in did some extra fiddling around
4699 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4700 ## LD_SWITCH_SYSTEM_TEMACS instead,
4701 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4702 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4705 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4706 ## find X at run-time.
4707 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4708 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4709 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4710 ## had different values in configure (in ac_link) and src/Makefile.in.
4711 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4712 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4715 ## MinGW64 does not prepend an underscore to symbols, so we must
4716 ## pass a different -entry switch to linker. FIXME: It is better
4717 ## to make the entry points the same by changing unexw32.c.
4718 case "$canonical" in
4719 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4720 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4724 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4726 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4729 if test x$ac_enable_profiling != x ; then
4731 *freebsd | gnu-linux) ;;
4732 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4736 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4738 ## MinGW-specific post-link processing of temacs.
4739 TEMACS_POST_LINK=":"
4742 if test "${opsys}" = "mingw32"; then
4743 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4744 ADDSECTION="../nt/addsection\$(EXEEXT)"
4745 ## Preload heap size of temacs.exe in MB.
4746 case "$canonical" in
4747 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4748 *) EMACS_HEAPSIZE=27 ;;
4752 AC_SUBST(ADDSECTION)
4753 AC_SUBST(TEMACS_POST_LINK)
4754 AC_SUBST(EMACS_HEAPSIZE)
4756 ## Common for all window systems
4757 if test "$window_system" != "none"; then
4758 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4759 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4762 AC_SUBST(WINDOW_SYSTEM_OBJ)
4764 AH_TOP([/* GNU Emacs site configuration template file.
4766 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4767 Free Software Foundation, Inc.
4769 This file is part of GNU Emacs.
4771 GNU Emacs is free software: you can redistribute it and/or modify
4772 it under the terms of the GNU General Public License as published by
4773 the Free Software Foundation, either version 3 of the License, or
4774 (at your option) any later version.
4776 GNU Emacs is distributed in the hope that it will be useful,
4777 but WITHOUT ANY WARRANTY; without even the implied warranty of
4778 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4779 GNU General Public License for more details.
4781 You should have received a copy of the GNU General Public License
4782 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4785 /* No code in Emacs #includes config.h twice, but some bits of code
4786 intended to work with other packages as well (like gmalloc.c)
4787 think they can include it as many times as they like. */
4788 #ifndef EMACS_CONFIG_H
4789 #define EMACS_CONFIG_H
4792 AH_BOTTOM([#include <conf_post.h>
4794 #endif /* EMACS_CONFIG_H */
4803 #### Report on what we decided to do.
4804 #### Report GTK as a toolkit, even if it doesn't use Xt.
4805 #### It makes printing result more understandable as using GTK sets
4806 #### toolkit_scroll_bars to yes by default.
4807 if test "${HAVE_GTK}" = "yes"; then
4808 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4811 if test $USE_ACL -ne 0; then
4812 acl_summary="yes $LIB_ACL"
4818 Configured for \`${canonical}'.
4820 Where should the build process find the source code? ${srcdir}
4821 What compiler should emacs be built with? ${CC} ${CFLAGS}
4822 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4823 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4824 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4825 What window system should Emacs use? ${window_system}
4826 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4828 if test -n "${x_includes}"; then
4829 echo " Where do we find X Windows header files? ${x_includes}"
4831 echo " Where do we find X Windows header files? Standard dirs"
4833 if test -n "${x_libraries}"; then
4834 echo " Where do we find X Windows libraries? ${x_libraries}"
4836 echo " Where do we find X Windows libraries? Standard dirs"
4839 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4840 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4841 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4842 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4843 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4844 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4845 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4846 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4848 echo " Does Emacs support sound? ${HAVE_SOUND}"
4850 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4851 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4852 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4853 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4854 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4855 echo " Does Emacs use access control lists? ${acl_summary}"
4856 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4857 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4858 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4860 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4861 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4862 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4863 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4864 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4866 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4869 if test -n "${EMACSDATA}"; then
4870 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4872 if test -n "${EMACSDOC}"; then
4873 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4878 if test "$HAVE_NS" = "yes"; then
4880 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4881 The installed application will go to nextstep/Emacs.app and can be
4882 run or moved from there."
4883 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4884 echo "The application will be fully self-contained."
4886 echo "The lisp resources for the application will be installed under ${prefix}.
4887 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4888 to run if these resources are not installed."
4893 if test "${opsys}" = "cygwin"; then
4895 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4901 # Remove any trailing slashes in these variables.
4902 [test "${prefix}" != NONE &&
4903 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4904 test "${exec_prefix}" != NONE &&
4905 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4907 if test "$HAVE_NS" = "yes"; then
4908 if test "$NS_IMPL_GNUSTEP" = yes; then
4909 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4910 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4912 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4913 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4917 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4918 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4919 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4920 dnl (else you get "no `Makefile.am' found for any configure output").
4921 dnl This will work, but you get a config.status that is not quite right
4922 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4923 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4924 dnl it seems better to just live with the duplication.
4925 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4927 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4928 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4929 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4930 leim/Makefile nextstep/Makefile nt/Makefile])
4932 dnl test/ is not present in release tarfiles.
4933 opt_makefile=test/automated/Makefile
4935 if test -f "$srcdir/$opt_makefile.in"; then
4936 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4937 dnl Again, it's best not to use a variable. Though you can add
4938 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4939 AC_CONFIG_FILES([test/automated/Makefile])
4943 dnl admin/ may or may not be present.
4944 opt_makefile=admin/unidata/Makefile
4946 if test -f "$srcdir/$opt_makefile.in"; then
4947 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4948 AC_CONFIG_FILES([admin/unidata/Makefile])
4952 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4954 AC_SUBST(SUBDIR_MAKEFILES_IN)
4956 dnl You might wonder (I did) why epaths.h is generated by running make,
4957 dnl rather than just letting configure generate it from epaths.in.
4958 dnl One reason is that the various paths are not fully expanded (see above);
4959 dnl eg gamedir=${prefix}/var/games/emacs.
4960 dnl Secondly, the GNU Coding standards require that one should be able
4961 dnl to run `make prefix=/some/where/else' and override the values set
4962 dnl by configure. This also explains the `move-if-change' test and
4963 dnl the use of force in the `epaths-force' rule in Makefile.in.
4964 AC_CONFIG_COMMANDS([src/epaths.h], [
4965 if test "${opsys}" = "mingw32"; then
4966 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4968 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4970 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4972 AC_CONFIG_COMMANDS([src/.gdbinit], [
4973 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4974 echo "source $srcdir/src/.gdbinit" > src/.gdbinit