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.
1000 if test $opsys = mingw32; then
1001 DOCMISC_DVI_W32=efaq-w32.dvi
1002 DOCMISC_HTML_W32=efaq-w32.html
1003 DOCMISC_INFO_W32=efaq-w32
1004 DOCMISC_PDF_W32=efaq-w32.pdf
1005 DOCMISC_PS_W32=efaq-w32.ps
1013 AC_SUBST(DOCMISC_DVI_W32)
1014 AC_SUBST(DOCMISC_HTML_W32)
1015 AC_SUBST(DOCMISC_INFO_W32)
1016 AC_SUBST(DOCMISC_PDF_W32)
1017 AC_SUBST(DOCMISC_PS_W32)
1019 dnl Add our options to ac_link now, after it is set up.
1021 if test x$GCC = xyes; then
1022 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1023 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1025 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1026 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1029 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1030 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1031 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1032 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1033 dnl if not built to support GNU ld.
1035 late_LDFLAGS=$LDFLAGS
1036 if test x$GCC = xyes; then
1037 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
1039 LDFLAGS="$LDFLAGS -znocombreloc"
1042 AC_MSG_CHECKING([for -znocombreloc])
1043 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1044 [AC_MSG_RESULT(yes)],
1045 LDFLAGS=$late_LDFLAGS
1046 [AC_MSG_RESULT(no)])
1049 dnl The function dump-emacs will not be defined and temacs will do
1050 dnl (load "loadup") automatically unless told otherwise.
1051 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1053 your-opsys-here) CANNOT_DUMP=yes ;;
1056 test "$CANNOT_DUMP" = "yes" && \
1057 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1059 AC_SUBST(CANNOT_DUMP)
1062 UNEXEC_OBJ=unexelf.o
1064 # MSDOS uses unexcoff.o
1066 UNEXEC_OBJ=unexaix.o
1072 UNEXEC_OBJ=unexmacosx.o
1075 UNEXEC_OBJ=unexhp9k800.o
1078 UNEXEC_OBJ=unexw32.o
1081 # Use the Solaris dldump() function, called from unexsol.c, to dump
1082 # emacs, instead of the generic ELF dump code found in unexelf.c.
1083 # The resulting binary has a complete symbol table, and is better
1084 # for debugging and other observability tools (debuggers, pstack, etc).
1086 # If you encounter a problem using dldump(), please consider sending
1087 # a message to the OpenSolaris tools-linking mailing list:
1088 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1090 # It is likely that dldump() works with older Solaris too, but this has
1091 # not been tested, so for now this change is for Solaris 10 or newer.
1092 UNEXEC_OBJ=unexsol.o
1099 ## Let `ld' find image libs and similar things in /usr/local/lib.
1100 ## The system compiler, GCC, has apparently been modified to not
1101 ## look there, contrary to what a stock GCC would do.
1102 ### It's not our place to do this. See bug#10313#17.
1103 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1108 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1109 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1113 ### It's not our place to do this. See bug#10313#17.
1114 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1119 ## Han Boetes <han@boetes.org> says this is necessary,
1120 ## otherwise Emacs dumps core on elf systems.
1121 LD_SWITCH_SYSTEM="-Z"
1124 AC_SUBST(LD_SWITCH_SYSTEM)
1126 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1128 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1129 ## which has not been defined yet. When this was handled with cpp,
1130 ## it was expanded to null when configure sourced the s/*.h file.
1131 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1132 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1133 ## (or somesuch), but because it is supposed to go at the _front_
1134 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1135 ## Compare with the gnu-linux case below, which added to the end
1136 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1137 ## LD_SWITCH_SYSTEM_TEMACS.
1140 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1147 AC_CHECK_DECL([__ELF__])
1148 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1149 ## With ELF, make sure that all common symbols get allocated to in the
1150 ## data section. Otherwise, the dump of temacs may miss variables in
1151 ## the shared library that have been initialized. For example, with
1152 ## GNU libc, __malloc_initialized would normally be resolved to the
1153 ## shared library's .bss section, which is fatal.
1154 if test "x$GCC" = "xyes"; then
1155 C_SWITCH_MACHINE="-fno-common"
1157 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1160 UNEXEC_OBJ=unexalpha.o
1164 AC_SUBST(C_SWITCH_MACHINE)
1166 AC_SUBST(UNEXEC_OBJ)
1169 ## Some programs in src produce warnings saying certain subprograms
1170 ## are too complex and need a MAXMEM value greater than 2000 for
1171 ## additional optimization. --nils@exp-math.uni-essen.de
1172 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1173 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1174 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1175 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1176 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1177 AC_SUBST(C_SWITCH_SYSTEM)
1182 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1183 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1185 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1187 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1189 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1191 ## Motif needs -lgen.
1192 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1195 AC_SUBST(LIBS_SYSTEM)
1197 ### Make sure subsequent tests use flags consistent with the build flags.
1199 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1200 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1202 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1205 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1206 AC_DEFUN([AC_TYPE_SIZE_T])
1207 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1208 AC_DEFUN([AC_TYPE_UID_T])
1212 dnl Current possibilities handled by sed (aix4-2 -> aix,
1213 dnl gnu-linux -> gnu/linux, etc.):
1214 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1215 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1216 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1223 ## Adding -lm confuses the dynamic linker, so omit it.
1226 freebsd | dragonfly )
1227 SYSTEM_TYPE=berkeley-unix
1229 gnu-linux | gnu-kfreebsd )
1231 hpux10-20 | hpux11 )
1235 SYSTEM_TYPE=windows-nt
1237 dnl NB this may be adjusted below.
1239 SYSTEM_TYPE=berkeley-unix
1243 SYSTEM_TYPE=usg-unix-v
1249 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1250 [The type of system you are compiling for; sets `system-type'.])
1253 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1254 pre_PKG_CONFIG_LIBS=$LIBS
1256 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1258 dnl This function definition taken from Gnome 2.0
1259 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1260 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1261 dnl also defines GSTUFF_PKG_ERRORS on error
1262 AC_DEFUN([PKG_CHECK_MODULES], [
1265 if test "$PKG_CONFIG" = "no" ; then
1266 ifelse([$4], , [AC_MSG_ERROR([
1267 *** 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])
1269 PKG_CONFIG_MIN_VERSION=0.9.0
1270 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1271 AC_MSG_CHECKING(for $2)
1273 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1274 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1275 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1282 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1283 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1284 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1290 ## If we have a custom action on failure, don't print errors, but
1291 ## do set a variable so people can do so. Do it in a subshell
1292 ## to capture any diagnostics in invoking pkg-config.
1293 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1294 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1300 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1301 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1305 if test $succeeded = yes; then
1306 ifelse([$3], , :, [$3])
1308 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.])], [$4])
1313 if test "${with_sound}" != "no"; then
1314 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1315 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1316 have_sound_header=yes, [], [
1318 #define WIN32_LEAN_AND_MEAN
1319 #include <windows.h>
1322 if test "${with_sound}" = "ossaudio" || test "${with_sound}" = "yes"; then
1323 # Emulation library used on NetBSD.
1324 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1325 test "${with_sound}" = "ossaudio" && test -z "$LIBSOUND" && \
1326 AC_MSG_ERROR([ossaudio sound support requested but not found.])
1327 dnl FIXME? If we did find ossaudio, should we set with_sound=ossaudio?
1328 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1332 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1334 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1335 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1336 if test $HAVE_ALSA = yes; then
1337 SAVE_CFLAGS="$CFLAGS"
1339 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1340 LIBS="$ALSA_LIBS $LIBS"
1341 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1342 emacs_alsa_normal=yes,
1343 emacs_alsa_normal=no)
1344 if test "$emacs_alsa_normal" != yes; then
1345 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1346 [[snd_lib_error_set_handler (0);]])],
1347 emacs_alsa_subdir=yes,
1348 emacs_alsa_subdir=no)
1349 if test "$emacs_alsa_subdir" != yes; then
1350 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1352 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1355 CFLAGS="$SAVE_CFLAGS"
1357 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1358 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1359 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1360 elif test "${with_sound}" = "alsa"; then
1361 AC_MSG_ERROR([ALSA sound support requested but not found.])
1363 fi dnl with_sound = alsa|yes
1365 dnl Define HAVE_SOUND if we have sound support. We know it works and
1366 dnl compiles only on the specified platforms. For others, it
1367 dnl probably doesn't make sense to try.
1368 dnl FIXME So surely we should bypass this whole section if not using
1369 dnl one of these platforms?
1370 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1372 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1373 dnl Adjust the --with-sound help text if you change this.
1374 gnu-linux|freebsd|netbsd|mingw32)
1375 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1381 AC_SUBST(CFLAGS_SOUND)
1384 dnl checks for header files
1385 AC_CHECK_HEADERS_ONCE(
1389 sys/utsname.h pwd.h utmp.h util.h)
1391 AC_MSG_CHECKING(if personality LINUX32 can be set)
1392 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1393 emacs_cv_personality_linux32=yes,
1394 emacs_cv_personality_linux32=no)
1395 AC_MSG_RESULT($emacs_cv_personality_linux32)
1397 if test $emacs_cv_personality_linux32 = yes; then
1398 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1399 [Define to 1 if personality LINUX32 can be set.])
1402 dnl On Solaris 8 there's a compilation warning for term.h because
1403 dnl it doesn't define `bool'.
1404 AC_CHECK_HEADERS(term.h, , , -)
1406 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1408 if test $ac_cv_have_decl_sys_siglist != yes; then
1409 # For Tru64, at least:
1410 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1415 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1416 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1417 #if HAVE_SYS_SOCKET_H
1418 #include <sys/socket.h>
1420 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1421 #if HAVE_SYS_SOCKET_H
1422 #include <sys/socket.h>
1424 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1425 #if HAVE_SYS_SOCKET_H
1426 #include <sys/socket.h>
1429 dnl checks for structure members
1430 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1431 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1432 struct ifreq.ifr_addr,
1433 struct ifreq.ifr_addr.sa_len], , ,
1434 [AC_INCLUDES_DEFAULT
1435 #if HAVE_SYS_SOCKET_H
1436 #include <sys/socket.h>
1442 dnl Check for endianness.
1443 dnl AC_C_BIGENDIAN is done by gnulib.
1445 dnl check for Make feature
1446 dnl AC_PROG_MAKE_SET is done by Automake.
1451 dnl check for GNU Make if we have GCC and autodepend is on.
1452 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1453 AC_MSG_CHECKING([whether we are using GNU Make])
1455 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1456 if test "x$testval" != x; then
1459 ac_enable_autodepend=no
1461 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1462 if test $HAVE_GNU_MAKE = yes; then
1463 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1464 SAVE_CFLAGS="$CFLAGS"
1465 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1466 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1467 CFLAGS="$SAVE_CFLAGS"
1468 test -f deps.d || ac_enable_autodepend=no
1470 AC_MSG_RESULT([$ac_enable_autodepend])
1472 if test $ac_enable_autodepend = yes; then
1473 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1474 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1475 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1476 deps_frag=autodeps.mk
1479 deps_frag=$srcdir/src/$deps_frag
1482 AC_SUBST_FILE(deps_frag)
1485 lisp_frag=$srcdir/src/lisp.mk
1486 AC_SUBST_FILE(lisp_frag)
1489 dnl checks for operating system services
1490 AC_SYS_LONG_FILE_NAMES
1492 #### Choose a window system.
1494 ## We leave window_system equal to none if
1495 ## we end up building without one. Any new window system should
1496 ## set window_system to an appropriate value and add objects to
1497 ## window-system-specific substs.
1501 if test "$no_x" != yes; then
1505 LD_SWITCH_X_SITE_RPATH=
1506 if test "${x_libraries}" != NONE; then
1507 if test -n "${x_libraries}"; then
1508 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1509 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1511 x_default_search_path=""
1512 x_search_path=${x_libraries}
1513 if test -z "${x_search_path}"; then
1514 x_search_path=/usr/lib
1516 for x_library in `echo ${x_search_path}: | \
1517 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1519 ${x_library}/X11/%L/%T/%N%C%S:\
1520 ${x_library}/X11/%l/%T/%N%C%S:\
1521 ${x_library}/X11/%T/%N%C%S:\
1522 ${x_library}/X11/%L/%T/%N%S:\
1523 ${x_library}/X11/%l/%T/%N%S:\
1524 ${x_library}/X11/%T/%N%S"
1525 if test x"${x_default_search_path}" = x; then
1526 x_default_search_path=${x_search_path}
1528 x_default_search_path="${x_search_path}:${x_default_search_path}"
1532 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1534 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1535 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1538 if test x"${x_includes}" = x; then
1539 bitmapdir=/usr/include/X11/bitmaps
1541 # accumulate include directories that have X11 bitmap subdirectories
1543 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1544 if test -d "${bmd}/X11/bitmaps"; then
1545 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1547 if test -d "${bmd}/bitmaps"; then
1548 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1551 if test ${bmd_acc} != "dummyval"; then
1552 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1559 tmp_CPPFLAGS="$CPPFLAGS"
1560 tmp_CFLAGS="$CFLAGS"
1561 CPPFLAGS="$CPPFLAGS -x objective-c"
1562 CFLAGS="$CFLAGS -x objective-c"
1565 if test "${with_ns}" != no; then
1566 if test "${opsys}" = darwin; then
1568 ns_appdir=`pwd`/nextstep/Emacs.app
1569 ns_appbindir=${ns_appdir}/Contents/MacOS
1570 ns_appresdir=${ns_appdir}/Contents/Resources
1571 ns_appsrc=Cocoa/Emacs.base
1572 elif test -f $GNUSTEP_CONFIG_FILE; then
1574 ns_appdir=`pwd`/nextstep/Emacs.app
1575 ns_appbindir=${ns_appdir}
1576 ns_appresdir=${ns_appdir}/Resources
1577 ns_appsrc=GNUstep/Emacs.base
1578 dnl FIXME sourcing this several times in subshells seems inefficient.
1579 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1580 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1581 dnl I seemed to need these as well with GNUstep-startup 0.25.
1582 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1583 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1584 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1585 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1586 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1587 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1588 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1589 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1590 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1591 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1592 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1593 dnl If they had chosen to either define it or not, we could have
1594 dnl just used AC_CHECK_DECL here.
1595 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1596 emacs_cv_objc_exceptions,
1597 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1598 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1602 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1603 if test $emacs_cv_objc_exceptions = yes; then
1604 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1605 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1606 [Define if GNUstep uses ObjC exceptions.])
1607 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1611 dnl This is only used while we test the NS headers, it gets reset below.
1612 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1614 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1615 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1616 files are missing or cannot be compiled.])])
1618 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1620 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1621 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1624 #error "OSX 10.4 or newer required"
1628 ns_osx_have_104=yes,
1630 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1632 ns_have_nsinteger=yes,
1633 ns_have_nsinteger=no)
1634 if test $ns_osx_have_104 = no; then
1635 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1637 if test $ns_have_nsinteger = yes; then
1638 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1642 AC_SUBST(LIBS_GNUSTEP)
1644 INSTALL_ARCH_INDEP_EXTRA=install-etc
1645 ns_self_contained=no
1648 if test "${HAVE_NS}" = yes; then
1649 if test "$with_toolkit_scroll_bars" = "no"; then
1650 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1653 window_system=nextstep
1654 # set up packaging dirs
1655 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1656 ns_self_contained=yes
1657 prefix=${ns_appresdir}
1658 exec_prefix=${ns_appbindir}
1659 dnl This one isn't really used, only archlibdir is.
1660 libexecdir="\${ns_appbindir}/libexec"
1661 archlibdir="\${ns_appbindir}/libexec"
1662 etcdocdir="\${ns_appresdir}/etc"
1663 etcdir="\${ns_appresdir}/etc"
1664 dnl FIXME maybe set datarootdir instead.
1665 dnl That would also get applications, icons, man.
1666 infodir="\${ns_appresdir}/info"
1667 mandir="\${ns_appresdir}/man"
1668 lispdir="\${ns_appresdir}/lisp"
1669 leimdir="\${ns_appresdir}/leim"
1670 INSTALL_ARCH_INDEP_EXTRA=
1672 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1674 CFLAGS="$tmp_CFLAGS"
1675 CPPFLAGS="$tmp_CPPFLAGS"
1676 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1677 AC_SUBST(ns_self_contained)
1679 AC_SUBST(NS_OBJC_OBJ)
1690 if test "${with_w32}" != no; then
1693 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1694 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1695 cannot be found.])])
1698 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1701 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1706 if test "${opsys}" = "mingw32"; then
1707 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1708 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1709 #include <windows.h>
1710 #include <usp10.h>]],
1711 [[PIMAGE_NT_HEADERS pHeader;
1712 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1713 [emacs_cv_w32api=yes
1716 AC_MSG_RESULT($emacs_cv_w32api)
1717 if test "${emacs_cv_w32api}" = "no"; then
1718 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1729 if test "${HAVE_W32}" = "yes"; then
1730 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1731 AC_CHECK_TOOL(WINDRES, [windres],
1732 [AC_MSG_ERROR([No resource compiler found.])])
1733 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1734 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1735 EMACSRES="emacs.res"
1736 case "$canonical" in
1737 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1738 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1740 UPDATE_MANIFEST=update-game-score.exe.manifest
1741 if test "${opsys}" = "cygwin"; then
1742 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1743 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1744 # Tell the linker that emacs.res is an object (which we compile from
1745 # the rc file), not a linker script.
1746 W32_RES_LINK="-Wl,emacs.res"
1748 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1749 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1750 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1751 W32_RES_LINK="\$(EMACSRES)"
1752 CLIENTRES="emacsclient.res"
1753 CLIENTW="emacsclientw\$(EXEEXT)"
1754 FIRSTFILE_OBJ=firstfile.o
1757 LIBS_ECLIENT="-lcomctl32"
1758 LIB_WSOCK32="-lwsock32"
1759 NTLIB="ntlib.$ac_objext"
1760 XARGS_LIMIT="-s 10000"
1766 AC_SUBST(EMACS_MANIFEST)
1767 AC_SUBST(UPDATE_MANIFEST)
1770 AC_SUBST(W32_RES_LINK)
1771 AC_SUBST(FIRSTFILE_OBJ)
1774 AC_SUBST(LIBS_ECLIENT)
1775 AC_SUBST(LIB_WSOCK32)
1777 AC_SUBST(XARGS_LIMIT)
1779 if test "${HAVE_W32}" = "yes"; then
1784 ## $window_system is now set to the window system we will
1792 case "${window_system}" in
1797 case "${with_x_toolkit}" in
1798 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1799 motif ) USE_X_TOOLKIT=MOTIF ;;
1801 term_header=gtkutil.h
1802 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1803 dnl USE_X_TOOLKIT is set.
1804 USE_X_TOOLKIT=none ;;
1805 gtk2 ) with_gtk2=yes
1806 term_header=gtkutil.h
1807 USE_X_TOOLKIT=none ;;
1808 gtk3 ) with_gtk3=yes
1809 term_header=gtkutil.h
1810 USE_X_TOOLKIT=none ;;
1811 no ) USE_X_TOOLKIT=none ;;
1812 dnl If user did not say whether to use a toolkit, make this decision later:
1813 dnl use the toolkit if we have gtk, or X11R5 or newer.
1814 * ) USE_X_TOOLKIT=maybe ;;
1818 term_header=nsterm.h
1821 term_header=w32term.h
1825 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1826 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1827 if test "$HAVE_XSERVER" = true ||
1828 test -n "$DISPLAY" ||
1829 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1830 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1831 were found. You should install the relevant development files for X
1832 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1833 sure you have development files for image handling, i.e.
1834 tiff, gif, jpeg, png and xpm.
1835 If you are sure you want Emacs compiled without X window support, pass
1841 ### If we're using X11, we should use the X menu package.
1844 yes ) HAVE_MENUS=yes ;;
1847 # Does the opsystem file prohibit the use of the GNU malloc?
1848 # Assume not, until told otherwise.
1852 [whether malloc is Doug Lea style],
1853 [emacs_cv_var_doug_lea_malloc],
1856 [[#include <malloc.h>
1857 static void hook (void) {}]],
1858 [[malloc_set_state (malloc_get_state ());
1859 __after_morecore_hook = hook;
1860 __malloc_initialize_hook = hook;]])],
1861 [emacs_cv_var_doug_lea_malloc=yes],
1862 [emacs_cv_var_doug_lea_malloc=no])])
1863 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1866 dnl See comments in aix4-2.h about maybe using system malloc there.
1869 ## darwin ld insists on the use of malloc routines in the System framework.
1870 darwin|sol2-10) system_malloc=yes ;;
1873 if test "${system_malloc}" = "yes"; then
1874 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1877 (The GNU allocators don't work with this system configuration.)"
1881 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1882 VMLIMIT_OBJ=vm-limit.o
1884 AC_CHECK_HEADERS([sys/vlimit.h])
1885 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1888 [[extern char data_start[]; char ch;]],
1889 [[return data_start < &ch;]])],
1890 [emacs_cv_data_start=yes],
1891 [emacs_cv_data_start=no])])
1892 if test $emacs_cv_data_start = yes; then
1893 AC_DEFINE([HAVE_DATA_START], 1,
1894 [Define to 1 if data_start is the address of the start
1895 of the main data segment.])
1898 AC_SUBST(GMALLOC_OBJ)
1899 AC_SUBST(VMLIMIT_OBJ)
1901 if test "$doug_lea_malloc" = "yes" ; then
1902 if test "$GNU_MALLOC" = yes ; then
1904 (Using Doug Lea's new malloc from the GNU C Library.)"
1906 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1907 [Define to 1 if you are using the GNU C Library.])
1909 ## Use mmap directly for allocating larger buffers.
1910 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1911 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1912 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1914 gnu*) REL_ALLOC=no ;;
1918 if test x"${REL_ALLOC}" = x; then
1919 REL_ALLOC=${GNU_MALLOC}
1922 use_mmap_for_buffers=no
1924 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1928 if test $use_mmap_for_buffers = yes; then
1929 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1933 LIBS="$LIBS_SYSTEM $LIBS"
1935 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1936 AC_CHECK_LIB(dnet, dnet_ntoa)
1937 dnl This causes -lresolv to get used in subsequent tests,
1938 dnl which causes failures on some systems such as HPUX 9.
1939 dnl AC_CHECK_LIB(resolv, gethostbyname)
1941 dnl FIXME replace main with a function we actually want from this library.
1942 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1944 dnl Check if pthreads is available.
1946 AC_CHECK_HEADERS_ONCE(pthread.h)
1947 if test "$ac_cv_header_pthread_h"; then
1948 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1949 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1950 dnl testing for pthread_self if Emacs uses gmalloc.c.
1951 if test "$GMALLOC_OBJ" = gmalloc.o; then
1952 emacs_pthread_function=pthread_atfork
1954 emacs_pthread_function=pthread_self
1956 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1958 if test "$HAVE_PTHREAD" = yes; then
1959 case "${canonical}" in
1961 *) LIB_PTHREAD="-lpthread"
1962 LIBS="$LIB_PTHREAD $LIBS" ;;
1964 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1966 AC_SUBST([LIB_PTHREAD])
1968 AC_CHECK_LIB(pthreads, cma_open)
1970 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1971 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1972 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1973 ## added to LIBS in configure would never contain the pthreads part,
1974 ## but the value used in Makefiles might. FIXME?
1976 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1977 ## be harmless on older versions of X where it happens to exist.
1978 test "$opsys" = "aix4-2" && \
1979 test $ac_cv_lib_pthreads_cma_open = yes && \
1980 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1982 dnl Check for need for bigtoc support on IBM AIX
1986 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1988 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1989 *) gdb_cv_bigtoc=-bbigtoc ;;
1992 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1993 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1998 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1999 # used for the tests that follow. We set them back to REAL_CFLAGS and
2000 # REAL_CPPFLAGS later on.
2002 REAL_CFLAGS="$CFLAGS"
2003 REAL_CPPFLAGS="$CPPFLAGS"
2005 if test "${HAVE_X11}" = "yes"; then
2006 DEFS="$C_SWITCH_X_SITE $DEFS"
2007 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2009 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2010 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2012 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2013 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2014 # but it's more convenient here to set LD_RUN_PATH since this
2015 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2016 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2017 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2021 if test "${opsys}" = "gnu-linux"; then
2022 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2023 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2024 [[XOpenDisplay ("foo");]])],
2025 [xgnu_linux_first_failure=no],
2026 [xgnu_linux_first_failure=yes])
2027 if test "${xgnu_linux_first_failure}" = "yes"; then
2028 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2029 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2030 OLD_CPPFLAGS="$CPPFLAGS"
2032 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2033 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2034 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2035 LIBS="$LIBS -b i486-linuxaout"
2036 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2037 [[XOpenDisplay ("foo");]])],
2038 [xgnu_linux_second_failure=no],
2039 [xgnu_linux_second_failure=yes])
2040 if test "${xgnu_linux_second_failure}" = "yes"; then
2041 # If we get the same failure with -b, there is no use adding -b.
2042 # So take it out. This plays safe.
2043 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2044 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2045 CPPFLAGS="$OLD_CPPFLAGS"
2056 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2057 # header files included from there.
2058 AC_MSG_CHECKING(for Xkb)
2059 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2060 #include <X11/XKBlib.h>]],
2061 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2062 emacs_xkb=yes, emacs_xkb=no)
2063 AC_MSG_RESULT($emacs_xkb)
2064 if test $emacs_xkb = yes; then
2065 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2068 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2069 XScreenNumberOfScreen)
2072 if test "${window_system}" = "x11"; then
2073 AC_MSG_CHECKING(X11 version 6)
2074 AC_CACHE_VAL(emacs_cv_x11_version_6,
2075 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2076 [[#if XlibSpecificationRelease < 6
2079 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2080 if test $emacs_cv_x11_version_6 = yes; then
2081 AC_MSG_RESULT(6 or newer)
2082 AC_DEFINE(HAVE_X11R6, 1,
2083 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2084 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2085 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2089 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2090 [Define if you have usable X11R6-style XIM support.])
2094 AC_MSG_RESULT(before 6)
2099 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2101 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2102 if test "${with_rsvg}" != "no"; then
2103 RSVG_REQUIRED=2.11.0
2104 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2106 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2107 AC_SUBST(RSVG_CFLAGS)
2110 if test $HAVE_RSVG = yes; then
2111 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2112 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2113 LIBS="$RSVG_LIBS $LIBS"
2119 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2120 if test "${with_imagemagick}" != "no"; then
2121 ## 6.2.8 is the earliest version known to work, but earlier versions
2122 ## might work - let us know if you find one.
2123 ## 6.0.7 does not work. See bug#7955.
2124 ## 6.8.2 makes Emacs crash; see Bug#13867.
2125 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2126 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2127 AC_SUBST(IMAGEMAGICK_CFLAGS)
2128 AC_SUBST(IMAGEMAGICK_LIBS)
2130 if test $HAVE_IMAGEMAGICK = yes; then
2131 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2132 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2133 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2134 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2142 gtk_term_header=$term_header
2145 if test "${opsys}" != "mingw32"; then
2146 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2149 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2151 dnl Checks for libraries.
2152 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2153 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2154 AC_MSG_ERROR($GTK_PKG_ERRORS)
2156 if test "$pkg_check_gtk" = "yes"; then
2157 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2158 GTK_OBJ=emacsgtkfixed.o
2159 gtk_term_header=gtkutil.h
2160 USE_GTK_TOOLKIT="GTK3"
2161 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2162 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2163 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2167 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2171 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2174 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2176 dnl Checks for libraries.
2177 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2178 if test "$pkg_check_gtk" = "no" &&
2179 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2181 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2183 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2187 if test x"$pkg_check_gtk" = xyes; then
2189 AC_SUBST(GTK_CFLAGS)
2191 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2192 CFLAGS="$CFLAGS $GTK_CFLAGS"
2193 LIBS="$GTK_LIBS $LIBS"
2194 dnl Try to compile a simple GTK program.
2195 AC_MSG_CHECKING([whether GTK compiles])
2199 [[/* Check the Gtk and Glib APIs. */
2200 #include <gtk/gtk.h>
2201 #include <glib-object.h>
2203 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2207 GtkSettings *gs = 0;
2208 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2209 strict C prohibits this. Use gtk_main_iteration to test that the
2210 libraries are there. */
2211 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2212 0, 0, 0, G_CALLBACK (callback), 0))
2213 gtk_main_iteration ();
2216 AC_MSG_RESULT([$GTK_COMPILES])
2217 if test "${GTK_COMPILES}" != "yes"; then
2219 if test "$USE_X_TOOLKIT" != "maybe"; then
2220 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2224 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2225 GTK_OBJ="gtkutil.o $GTK_OBJ"
2226 term_header=$gtk_term_header
2228 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2231 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2232 closing open displays. This is no problem if you just use
2233 one display, but if you use more than one and close one of them
2243 if test "${HAVE_GTK}" = "yes"; then
2245 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2246 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2247 if test "$with_toolkit_scroll_bars" != no; then
2248 with_toolkit_scroll_bars=yes
2251 dnl Check if we have the old file selection dialog declared and
2252 dnl in the link library. In 2.x it may be in the library,
2253 dnl but not declared if deprecated featured has been selected out.
2254 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2255 HAVE_GTK_FILE_SELECTION=no
2256 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2257 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2258 #include <gtk/gtk.h>])
2259 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2260 AC_CHECK_FUNCS(gtk_file_selection_new)
2263 dnl Same as above for gtk_handle_box.
2264 HAVE_GTK_HANDLE_BOX=no
2265 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2266 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2267 #include <gtk/gtk.h>])
2268 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2269 AC_CHECK_FUNCS(gtk_handle_box_new)
2272 dnl Same as above for gtk_tearoff_menu_item.
2273 HAVE_GTK_TEAROFF_MENU_ITEM=no
2274 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2275 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2276 #include <gtk/gtk.h>])
2277 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2278 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2281 dnl Check for functions introduced in 2.14 and later.
2282 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2283 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2284 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2285 gtk_orientable_set_orientation \
2286 gtk_window_set_has_resize_grip)
2288 term_header=gtkutil.h
2291 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2292 dnl other platforms.
2295 if test "${with_dbus}" = "yes"; then
2296 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2297 if test "$HAVE_DBUS" = yes; then
2298 LIBS="$LIBS $DBUS_LIBS"
2299 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2300 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2301 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2303 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2304 dbus_type_is_valid \
2305 dbus_validate_bus_name \
2306 dbus_validate_path \
2307 dbus_validate_interface \
2308 dbus_validate_member)
2314 dnl GSettings has been tested under GNU/Linux only.
2316 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2317 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2318 if test "$HAVE_GSETTINGS" = "yes"; then
2319 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2320 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2321 SETTINGS_LIBS="$GSETTINGS_LIBS"
2325 dnl GConf has been tested under GNU/Linux only.
2326 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2328 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2329 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2330 if test "$HAVE_GCONF" = yes; then
2331 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2332 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2333 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2334 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2338 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2339 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2340 if test "$HAVE_GOBJECT" = "yes"; then
2341 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2342 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2344 SAVE_CFLAGS="$CFLAGS"
2346 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2347 LIBS="$SETTINGS_LIBS $LIBS"
2348 AC_CHECK_FUNCS([g_type_init])
2349 CFLAGS="$SAVE_CFLAGS"
2352 AC_SUBST(SETTINGS_CFLAGS)
2353 AC_SUBST(SETTINGS_LIBS)
2356 dnl SELinux is available for GNU/Linux only.
2359 if test "${with_selinux}" = "yes"; then
2360 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2361 if test "$HAVE_LIBSELINUX" = yes; then
2362 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2363 LIBSELINUX_LIBS=-lselinux
2366 AC_SUBST(LIBSELINUX_LIBS)
2369 if test "${with_gnutls}" = "yes" ; then
2370 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2371 if test "${HAVE_GNUTLS}" = "yes"; then
2372 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2375 # Windows loads GnuTLS dynamically
2376 if test "${opsys}" = "mingw32"; then
2379 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2380 LIBS="$LIBGNUTLS_LIBS $LIBS"
2384 AC_SUBST(LIBGNUTLS_LIBS)
2385 AC_SUBST(LIBGNUTLS_CFLAGS)
2390 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2391 dnl a particular library. This doesn't make much sense?
2392 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2393 with_file_notification=no
2396 dnl MS Windows native file monitor is available for mingw32 only.
2397 case $with_file_notification,$opsys in
2398 w32,* | yes,mingw32)
2399 AC_CHECK_HEADER(windows.h)
2400 if test "$ac_cv_header_windows_h" = yes ; then
2401 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2402 NOTIFY_OBJ=w32notify.o
2403 NOTIFY_SUMMARY="yes (w32)"
2407 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2408 dnl has been added in glib 2.24. It has been tested under
2409 dnl GNU/Linux only. We take precedence over inotify, but this makes
2410 dnl only sense when glib has been compiled with inotify support. How
2412 case $with_file_notification,$NOTIFY_OBJ in
2414 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2415 if test "$HAVE_GFILENOTIFY" = "yes"; then
2416 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2417 NOTIFY_OBJ=gfilenotify.o
2418 NOTIFY_SUMMARY="yes -lgio (gfile)"
2422 dnl inotify is only available on GNU/Linux.
2423 case $with_file_notification,$NOTIFY_OBJ in
2425 AC_CHECK_HEADER(sys/inotify.h)
2426 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2427 AC_CHECK_FUNC(inotify_init1)
2428 if test "$ac_cv_func_inotify_init1" = yes; then
2429 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2430 NOTIFY_OBJ=inotify.o
2431 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2436 case $with_file_notification,$NOTIFY_OBJ in
2437 yes,* | no,* | *,?*) ;;
2438 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2441 if test -n "$NOTIFY_OBJ"; then
2442 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2444 AC_SUBST(NOTIFY_OBJ)
2445 AC_SUBST(GFILENOTIFY_CFLAGS)
2446 AC_SUBST(GFILENOTIFY_LIBS)
2448 dnl Do not put whitespace before the #include statements below.
2449 dnl Older compilers (eg sunos4 cc) choke on it.
2452 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2453 if test "$with_xaw3d" != no; then
2454 AC_CACHE_VAL(emacs_cv_xaw3d,
2455 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2456 #include <X11/Intrinsic.h>
2457 #include <X11/Xaw3d/Simple.h>]],
2459 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2460 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2461 emacs_cv_xaw3d=no)])
2465 if test $emacs_cv_xaw3d = yes; then
2466 AC_MSG_CHECKING(for xaw3d)
2467 AC_MSG_RESULT([yes; using Lucid toolkit])
2471 AC_DEFINE(HAVE_XAW3D, 1,
2472 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2474 AC_MSG_CHECKING(for xaw3d)
2476 AC_MSG_CHECKING(for libXaw)
2477 AC_CACHE_VAL(emacs_cv_xaw,
2478 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2479 #include <X11/Intrinsic.h>
2480 #include <X11/Xaw/Simple.h>]],
2484 if test $emacs_cv_xaw = yes; then
2485 AC_MSG_RESULT([yes; using Lucid toolkit])
2488 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2489 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2491 AC_MSG_ERROR([No X toolkit could be found.
2492 If you are sure you want Emacs compiled without an X toolkit, pass
2494 to configure. Otherwise, install the development libraries for the toolkit
2495 that you want to use (e.g. Gtk+) and re-run configure.])
2500 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2503 if test "${USE_X_TOOLKIT}" != "none"; then
2504 AC_MSG_CHECKING(X11 toolkit version)
2505 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2506 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2507 [[#if XtSpecificationRelease < 6
2510 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2511 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2512 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2513 AC_MSG_RESULT(6 or newer)
2514 AC_DEFINE(HAVE_X11XTR6, 1,
2515 [Define to 1 if you have the X11R6 or newer version of Xt.])
2516 LIBXTR6="-lSM -lICE"
2518 ## Use libw.a along with X11R6 Xt.
2519 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2522 AC_MSG_RESULT(before 6)
2525 dnl If using toolkit, check whether libXmu.a exists.
2526 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2528 if test x$HAVE_X11XTR6 = xyes; then
2529 LIBS="-lXt -lSM -lICE $LIBS"
2533 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2534 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2535 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2539 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2540 dnl Why not just test for libxmu in the normal way?
2543 ## These systems don't supply Xmu.
2545 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2553 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2554 if test "${HAVE_X11}" = "yes"; then
2555 if test "${USE_X_TOOLKIT}" != "none"; then
2556 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2561 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2562 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2563 if test -d /usr/include/openmotif; then
2564 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2565 emacs_cv_openmotif=yes
2566 case "$canonical" in
2567 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2568 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2571 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2574 emacs_cv_openmotif=no
2576 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2577 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2578 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2581 Motif version prior to 2.1.
2583 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2584 if test $emacs_cv_motif_version_2_1 = yes; then
2585 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2586 if test x$emacs_cv_openmotif = xyes; then
2587 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2590 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2591 # We put this in CFLAGS temporarily to precede other -I options
2592 # that might be in CFLAGS temporarily.
2593 # We put this in CPPFLAGS where it precedes the other -I options.
2594 OLD_CPPFLAGS=$CPPFLAGS
2596 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2597 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2598 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2600 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2601 if test $emacs_cv_lesstif = yes; then
2602 # Make sure this -I option remains in CPPFLAGS after it is set
2603 # back to REAL_CPPFLAGS.
2604 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2605 # have those other -I options anyway. Ultimately, having this
2606 # directory ultimately in CPPFLAGS will be enough.
2607 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2608 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2611 CPPFLAGS=$OLD_CPPFLAGS
2614 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2615 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2618 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2619 dnl using Motif or Xaw3d is available, and unless
2620 dnl --with-toolkit-scroll-bars=no was specified.
2622 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2623 [Define to 1 if we should use toolkit scroll bars.])dnl
2624 USE_TOOLKIT_SCROLL_BARS=no
2625 if test "${with_toolkit_scroll_bars}" != "no"; then
2626 if test "${USE_X_TOOLKIT}" != "none"; then
2627 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2628 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2630 USE_TOOLKIT_SCROLL_BARS=yes
2631 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2632 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2633 USE_TOOLKIT_SCROLL_BARS=yes
2635 elif test "${HAVE_GTK}" = "yes"; then
2636 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2637 USE_TOOLKIT_SCROLL_BARS=yes
2638 elif test "${HAVE_NS}" = "yes"; then
2639 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2640 USE_TOOLKIT_SCROLL_BARS=yes
2641 elif test "${HAVE_W32}" = "yes"; then
2642 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2643 USE_TOOLKIT_SCROLL_BARS=yes
2647 dnl See if XIM is available.
2648 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2649 #include <X11/Xlib.h>
2650 #include <X11/Xresource.h>]],
2651 [[XIMProc callback;]])],
2653 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2656 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2658 if test "${with_xim}" != "no"; then
2659 AC_DEFINE(USE_XIM, 1,
2660 [Define to 1 if we should use XIM, if it is available.])
2664 if test "${HAVE_XIM}" != "no"; then
2666 if test "$GCC" = yes; then
2667 CFLAGS="$CFLAGS --pedantic-errors"
2669 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2670 #include <X11/Xlib.h>
2671 #include <X11/Xresource.h>]],
2677 XPointer *client_data;
2679 /* If we're not using GCC, it's probably not XFree86, and this is
2680 probably right, but we can't use something like --pedantic-errors. */
2681 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2682 char*, XIMProc, XPointer*);
2684 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2686 [emacs_cv_arg6_star=yes])
2687 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2688 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2689 either XPointer or XPointer*.])dnl
2690 if test "$emacs_cv_arg6_star" = yes; then
2691 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2693 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2698 ### Start of font-backend (under any platform) section.
2699 # (nothing here yet -- this is a placeholder)
2700 ### End of font-backend (under any platform) section.
2702 ### Start of font-backend (under X11) section.
2703 if test "${HAVE_X11}" = "yes"; then
2704 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2706 ## Use -lXft if available, unless `--with-xft=no'.
2708 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2711 if test "x${with_xft}" != "xno"; then
2713 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2714 ## Because xftfont.c uses XRenderQueryExtension, we also
2715 ## need to link to -lXrender.
2717 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2718 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2719 OLD_CPPFLAGS="$CPPFLAGS"
2720 OLD_CFLAGS="$CFLAGS"
2722 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2723 CFLAGS="$CFLAGS $XFT_CFLAGS"
2724 XFT_LIBS="-lXrender $XFT_LIBS"
2725 LIBS="$XFT_LIBS $LIBS"
2726 AC_CHECK_HEADER(X11/Xft/Xft.h,
2727 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2728 [[#include <X11/X.h>]])
2730 if test "${HAVE_XFT}" = "yes"; then
2731 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2733 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2735 CPPFLAGS="$OLD_CPPFLAGS"
2736 CFLAGS="$OLD_CFLAGS"
2738 fi # "${HAVE_XFT}" = "yes"
2739 fi # "$HAVE_XFT" != no
2740 fi # "x${with_xft}" != "xno"
2742 ## We used to allow building with FreeType and without Xft.
2743 ## However, the ftx font backend driver is not in good shape.
2744 if test "$HAVE_XFT" != "yes"; then
2745 dnl For the "Does Emacs use" message at the end.
2749 dnl Strict linkers fail with
2750 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2751 dnl if -lfreetype is not specified.
2752 dnl The following is needed to set FREETYPE_LIBS.
2753 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2756 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2760 if test "${HAVE_FREETYPE}" = "yes"; then
2761 AC_DEFINE(HAVE_FREETYPE, 1,
2762 [Define to 1 if using the freetype and fontconfig libraries.])
2763 if test "${with_libotf}" != "no"; then
2764 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2766 if test "$HAVE_LIBOTF" = "yes"; then
2767 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2768 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2769 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2770 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2771 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2772 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2773 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2777 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2778 dnl Does the new font backend require it, or can it work without it?
2782 if test "${HAVE_LIBOTF}" = yes; then
2783 if test "${with_m17n_flt}" != "no"; then
2784 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2785 if test "$HAVE_M17N_FLT" = "yes"; then
2786 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2797 ### End of font-backend (under X11) section.
2799 AC_SUBST(FREETYPE_CFLAGS)
2800 AC_SUBST(FREETYPE_LIBS)
2801 AC_SUBST(FONTCONFIG_CFLAGS)
2802 AC_SUBST(FONTCONFIG_LIBS)
2803 AC_SUBST(LIBOTF_CFLAGS)
2804 AC_SUBST(LIBOTF_LIBS)
2805 AC_SUBST(M17N_FLT_CFLAGS)
2806 AC_SUBST(M17N_FLT_LIBS)
2808 ### Use -lXpm if available, unless `--with-xpm=no'.
2809 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2812 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2813 if test "${with_xpm}" != "no"; then
2814 SAVE_CPPFLAGS="$CPPFLAGS"
2815 SAVE_LDFLAGS="$LDFLAGS"
2816 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2817 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2818 AC_CHECK_HEADER(X11/xpm.h,
2819 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2820 if test "${HAVE_XPM}" = "yes"; then
2821 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2822 AC_EGREP_CPP(no_return_alloc_pixels,
2823 [#include "X11/xpm.h"
2824 #ifndef XpmReturnAllocPixels
2825 no_return_alloc_pixels
2827 ], HAVE_XPM=no, HAVE_XPM=yes)
2829 if test "${HAVE_XPM}" = "yes"; then
2830 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2834 CPPFLAGS="$SAVE_CPPFLAGS"
2835 LDFLAGS="$SAVE_LDFLAGS"
2840 if test "${HAVE_XPM}" = "yes"; then
2841 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2846 if test "${HAVE_X11}" = "yes"; then
2847 if test "${with_xpm}" != "no"; then
2848 AC_CHECK_HEADER(X11/xpm.h,
2849 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2850 if test "${HAVE_XPM}" = "yes"; then
2851 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2852 AC_EGREP_CPP(no_return_alloc_pixels,
2853 [#include "X11/xpm.h"
2854 #ifndef XpmReturnAllocPixels
2855 no_return_alloc_pixels
2857 ], HAVE_XPM=no, HAVE_XPM=yes)
2859 if test "${HAVE_XPM}" = "yes"; then
2867 if test "${HAVE_XPM}" = "yes"; then
2868 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2873 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2874 ### slightly different requirements wrt image libraries (it doesn't
2875 ### use -lXpm because it loads the xpm shared library dynamically at
2877 if test "${opsys}" = "mingw32"; then
2878 if test "${with_xpm}" != "no"; then
2879 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2883 if test "${HAVE_XPM}" = "yes"; then
2884 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2890 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2891 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2894 if test "${opsys}" = "mingw32"; then
2895 if test "${with_jpeg}" != "no"; then
2896 dnl Checking for jpeglib.h can lose because of a redefinition of
2898 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2900 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2901 if test "${HAVE_JPEG}" = "yes"; then
2902 AC_DEFINE(HAVE_JPEG)
2903 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2904 [#include <jpeglib.h>
2905 version=JPEG_LIB_VERSION
2907 [AC_DEFINE(HAVE_JPEG)],
2908 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2911 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2912 if test "${with_jpeg}" != "no"; then
2913 dnl Checking for jpeglib.h can lose because of a redefinition of
2915 AC_CHECK_HEADER(jerror.h,
2916 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2919 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2920 if test "${HAVE_JPEG}" = "yes"; then
2921 AC_DEFINE(HAVE_JPEG)
2922 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2923 [#include <jpeglib.h>
2924 version=JPEG_LIB_VERSION
2926 [AC_DEFINE(HAVE_JPEG)],
2927 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2930 if test "${HAVE_JPEG}" = "yes"; then
2936 ### Use -lpng if available, unless `--with-png=no'.
2937 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2940 if test "${opsys}" = "mingw32"; then
2941 if test "${with_png}" != "no"; then
2942 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2944 if test "${HAVE_PNG}" = "yes"; then
2945 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2947 AC_CHECK_DECL(png_longjmp,
2949 [AC_DEFINE(PNG_DEPSTRUCT, [],
2950 [Define to empty to suppress deprecation warnings when building
2951 with --enable-gcc-warnings and with libpng versions before 1.5,
2952 which lack png_longjmp.])],
2953 [[#ifdef HAVE_LIBPNG_PNG_H
2954 # include <libpng/png.h>
2960 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2961 if test "${with_png}" != "no"; then
2962 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2963 # in /usr/include/libpng.
2964 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2965 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2966 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2970 if test "${HAVE_PNG}" = "yes"; then
2971 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2972 LIBPNG="-lpng -lz -lm"
2974 AC_CHECK_DECL(png_longjmp,
2976 [AC_DEFINE(PNG_DEPSTRUCT, [],
2977 [Define to empty to suppress deprecation warnings when building
2978 with --enable-gcc-warnings and with libpng versions before 1.5,
2979 which lack png_longjmp.])],
2980 [[#ifdef HAVE_LIBPNG_PNG_H
2981 # include <libpng/png.h>
2992 if test "${with_zlib}" != "no"; then
2994 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
2996 case $ac_cv_search_inflateEnd in
2997 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3000 if test "${HAVE_ZLIB}" = "yes"; then
3001 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3002 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3003 if test "${opsys}" = "mingw32"; then
3010 ### Use -ltiff if available, unless `--with-tiff=no'.
3011 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3014 if test "${opsys}" = "mingw32"; then
3015 if test "${with_tiff}" != "no"; then
3016 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3018 if test "${HAVE_TIFF}" = "yes"; then
3019 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3021 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3022 if test "${with_tiff}" != "no"; then
3023 AC_CHECK_HEADER(tiffio.h,
3025 # At least one tiff package requires the jpeg library.
3026 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3027 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3030 if test "${HAVE_TIFF}" = "yes"; then
3031 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3032 dnl FIXME -lz -lm, as per libpng?
3038 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3039 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3042 if test "${opsys}" = "mingw32"; then
3043 if test "${with_gif}" != "no"; then
3044 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3046 if test "${HAVE_GIF}" = "yes"; then
3047 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3049 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3050 || test "${HAVE_W32}" = "yes"; then
3051 AC_CHECK_HEADER(gif_lib.h,
3052 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3053 # Earlier versions can crash Emacs.
3054 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3056 if test "$HAVE_GIF" = yes; then
3058 elif test "$HAVE_GIF" = maybe; then
3059 # If gif_lib.h but no libgif, try libungif.
3060 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3061 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3064 if test "${HAVE_GIF}" = "yes"; then
3065 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3070 dnl Check for required libraries.
3071 if test "${HAVE_X11}" = "yes"; then
3074 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3075 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3076 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3077 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3078 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3079 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3080 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3081 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3082 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3083 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3085 if test "X${MISSING}" != X; then
3086 AC_MSG_ERROR([The following required libraries were not found:
3088 Maybe some development libraries/packages are missing?
3089 If you don't want to link with them give
3091 as options to configure])
3095 ### Use -lgpm if available, unless `--with-gpm=no'.
3098 if test "${with_gpm}" != "no"; then
3099 AC_CHECK_HEADER(gpm.h,
3100 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3102 if test "${HAVE_GPM}" = "yes"; then
3103 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3109 dnl Check for malloc/malloc.h on darwin
3110 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3113 ### Use NeXTstep API to implement GUI.
3114 if test "${HAVE_NS}" = "yes"; then
3115 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3116 if test "${NS_IMPL_COCOA}" = "yes"; then
3117 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3119 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3120 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3121 # See also .m.o rule in Makefile.in */
3122 # FIXME: are all these flags really needed? Document here why. */
3123 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3124 ## Extra CFLAGS applied to src/*.m files.
3125 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3127 # We also have mouse menus.
3132 if test "${HAVE_W32}" = "yes"; then
3136 ### Use session management (-lSM -lICE) if available
3139 if test "${HAVE_X11}" = "yes"; then
3140 AC_CHECK_HEADER(X11/SM/SMlib.h,
3141 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3143 if test "${HAVE_X_SM}" = "yes"; then
3144 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3148 *) LIBS="$LIBXSM $LIBS" ;;
3154 ### Use XRandr (-lXrandr) if available
3156 if test "${HAVE_X11}" = "yes"; then
3157 XRANDR_REQUIRED=1.2.2
3158 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3159 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3160 if test $HAVE_XRANDR = no; then
3161 # Test old way in case pkg-config doesn't have it (older machines).
3162 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3163 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3164 if test $HAVE_XRANDR = yes; then
3165 XRANDR_LIBS=-lXrandr
3166 AC_SUBST(XRANDR_LIBS)
3169 if test $HAVE_XRANDR = yes; then
3170 SAVE_CFLAGS="$CFLAGS"
3172 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3173 LIBS="$XRANDR_LIBS $LIBS"
3174 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3175 CFLAGS="$SAVE_CFLAGS"
3178 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3182 ### Use Xinerama (-lXinerama) if available
3184 if test "${HAVE_X11}" = "yes"; then
3185 XINERAMA_REQUIRED=1.0.2
3186 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3187 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3189 if test $HAVE_XINERAMA = no; then
3190 # Test old way in case pkg-config doesn't have it (older machines).
3191 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3192 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3193 if test $HAVE_XINERAMA = yes; then
3194 XINERAMA_LIBS=-lXinerama
3195 AC_SUBST(XINERAMA_LIBS)
3198 if test $HAVE_XINERAMA = yes; then
3199 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3204 ### Use libxml (-lxml2) if available
3205 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3207 if test "${with_xml2}" != "no"; then
3208 ### I'm not sure what the version number should be, so I just guessed.
3209 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3210 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3211 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3212 SAVE_CPPFLAGS="$CPPFLAGS"
3213 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3214 AC_CHECK_HEADER(libxml/HTMLparser.h,
3215 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3216 [#include <libxml/HTMLparser.h>])])
3217 CPPFLAGS="$SAVE_CPPFLAGS"
3218 if test "${HAVE_LIBXML2}" = "yes"; then
3219 LIBXML2_LIBS="-lxml2"
3220 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3223 if test "${HAVE_LIBXML2}" = "yes"; then
3224 if test "${opsys}" != "mingw32"; then
3225 LIBS="$LIBXML2_LIBS $LIBS"
3226 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3230 if test "${HAVE_LIBXML2}" = "yes"; then
3231 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3238 AC_SUBST(LIBXML2_LIBS)
3239 AC_SUBST(LIBXML2_CFLAGS)
3241 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3242 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3243 if test "${opsys}" = "mingw32"; then
3244 emacs_cv_netdb_declares_h_errno=yes
3246 AC_CACHE_CHECK(whether netdb declares h_errno,
3247 emacs_cv_netdb_declares_h_errno,
3248 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3249 [[return h_errno;]])],
3250 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3251 if test $emacs_cv_netdb_declares_h_errno = yes; then
3252 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3255 # sqrt and other floating-point functions such as fmod and frexp
3256 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3257 if test "${opsys}" != "mingw32"; then
3258 AC_CHECK_LIB(m, sqrt)
3261 # Check for mail-locking functions in a "mail" library. Probably this should
3262 # have the same check as for liblockfile below.
3263 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3264 if test $have_mail = yes; then
3266 LIBS="$LIBS_MAIL $LIBS"
3267 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3271 dnl Debian, at least:
3272 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3273 if test $have_lockfile = yes; then
3274 LIBS_MAIL=-llockfile
3275 LIBS="$LIBS_MAIL $LIBS"
3276 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3278 # If we have the shared liblockfile, assume we must use it for mail
3279 # locking (e.g. Debian). If we couldn't link against liblockfile
3280 # (no liblockfile.a installed), ensure that we don't need to.
3281 dnl This works for files generally, not just executables.
3282 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3283 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3284 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3285 if test $ac_cv_prog_liblockfile = yes; then
3286 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3287 This probably means that movemail could lose mail.
3288 There may be a `development' package to install containing liblockfile.])
3291 AC_CHECK_HEADERS_ONCE(maillock.h)
3294 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3295 ## interlock access to the mail spool. The alternative is a lock file named
3296 ## /usr/spool/mail/$USER.lock.
3299 aix4-2) mail_lock="lockf" ;;
3301 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3303 ## On GNU/Linux systems, both methods are used by various mail programs.
3304 ## I assume most people are using newer mailers that have heard of flock.
3305 ## Change this if you need to.
3306 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3307 ## configure gets the right answers, and that means *NOT* using flock.
3308 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3309 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3310 ## Debian maintainer hasn't provided a clean fix for Emacs.
3311 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3312 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3313 ## correct logic. -- fx
3314 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3315 ## liblockfile is a Free Software replacement for libmail, used on
3316 ## Debian systems and elsewhere. -rfr.
3319 if test $have_mail = yes || test $have_lockfile = yes; then
3320 test $ac_cv_header_maillock_h = yes && mail_lock=no
3325 mail_lock="none-needed" ;;
3329 case "$mail_lock" in
3330 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3332 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3336 *) BLESSMAIL_TARGET="need-blessmail" ;;
3338 AC_SUBST(BLESSMAIL_TARGET)
3341 AC_CHECK_FUNCS(accept4 gethostname \
3342 getrusage get_current_dir_name \
3344 select getpagesize setlocale \
3345 getrlimit setrlimit shutdown getaddrinfo \
3346 strsignal setitimer \
3347 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3348 gai_strerror getline getdelim sync \
3349 difftime posix_memalign \
3350 getpwent endpwent getgrent endgrent \
3352 cfmakeraw cfsetspeed copysign __executable_start log2)
3354 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3355 ## has a broken `rint' in some library versions including math library
3356 ## version number A.09.05.
3357 ## You can fix the math library by installing patch number PHSS_4630.
3358 ## But we can fix it more reliably for Emacs by just not using rint.
3359 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3362 *) AC_CHECK_FUNCS(random rint) ;;
3365 dnl Cannot use AC_CHECK_FUNCS
3366 AC_CACHE_CHECK([for __builtin_unwind_init],
3367 emacs_cv_func___builtin_unwind_init,
3368 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3369 emacs_cv_func___builtin_unwind_init=yes,
3370 emacs_cv_func___builtin_unwind_init=no)])
3371 if test $emacs_cv_func___builtin_unwind_init = yes; then
3372 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3373 [Define to 1 if you have the `__builtin_unwind_init' function.])
3376 AC_CHECK_HEADERS_ONCE(sys/un.h)
3381 AC_CHECK_FUNCS(grantpt)
3383 # PTY-related GNU extensions.
3384 AC_CHECK_FUNCS(getpt posix_openpt)
3386 # Check this now, so that we will NOT find the above functions in ncurses.
3387 # That is because we have not set up to link ncurses in lib-src.
3388 # It's better to believe a function is not available
3389 # than to expect to find it in ncurses.
3390 # Also we need tputs and friends to be able to build at all.
3391 AC_MSG_CHECKING([for library containing tputs])
3392 # Run a test program that contains a call to tputs, a call that is
3393 # never executed. This tests whether a pre-'main' dynamic linker
3394 # works with the library. It's too much trouble to actually call
3395 # tputs in the test program, due to portability hassles. When
3396 # cross-compiling, assume the test program will run if it links.
3397 AC_DEFUN([tputs_link_source], [
3399 [[extern void tputs (const char *, int, int (*)(int));
3400 int main (int argc, char **argv)
3403 tputs (argv[0], 0, 0);
3407 if test "${opsys}" = "mingw32"; then
3410 # Maybe curses should be tried earlier?
3411 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3412 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3414 if test -z "$tputs_library"; then
3418 LIBS_TERMCAP=-l$tputs_library
3420 LIBS="$LIBS_TERMCAP $LIBS"
3422 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3423 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3425 if test "X$msg" != Xno; then
3430 AC_MSG_RESULT([$msg])
3431 if test "X$msg" = Xno; then
3432 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3433 The following libraries were tried (in order):
3434 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3435 Please try installing whichever of these libraries is most appropriate
3436 for your system, together with its header files.
3437 For example, a libncurses-dev(el) or similar package.])
3440 ## Use termcap instead of terminfo?
3441 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3443 ## FIXME? In the cases below where we unconditionally set
3444 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3445 ## if that was found above to have tputs.
3446 ## Should we use the gnu* logic everywhere?
3448 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3449 ## The ncurses library has been moved out of the System framework in
3450 ## Mac OS X 10.2. So if configure detects it, set the command-line
3451 ## option to use it.
3452 darwin) LIBS_TERMCAP="-lncurses" ;;
3454 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3457 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3458 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3459 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3460 [[#if __FreeBSD_version < 400000
3463 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3465 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3467 if test $emacs_cv_freebsd_terminfo = yes; then
3468 LIBS_TERMCAP="-lncurses"
3471 LIBS_TERMCAP="-ltermcap"
3481 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3483 LIBS_TERMCAP="-ltermcap"
3487 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3489 ## hpux: Make sure we get select from libc rather than from libcurses
3490 ## because libcurses on HPUX 10.10 has a broken version of select.
3491 ## We used to use -lc -lcurses, but this may be cleaner.
3492 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3493 # set that way, now it uses the default). Isn't this a contradiction?
3494 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3498 TERMCAP_OBJ=tparam.o
3499 if test $TERMINFO = yes; then
3500 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3501 TERMCAP_OBJ=terminfo.o
3503 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3504 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3506 AC_SUBST(LIBS_TERMCAP)
3507 AC_SUBST(TERMCAP_OBJ)
3510 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3511 # On Darwin, res_init appears not to be useful: see bug#562 and
3512 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3515 if test $opsys != darwin; then
3517 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3518 #include <arpa/nameser.h>
3519 #include <resolv.h>]],
3520 [[return res_init();]])],
3521 have_res_init=yes, have_res_init=no)
3522 if test "$have_res_init" = no; then
3524 LIBS="$LIBS -lresolv"
3525 AC_MSG_CHECKING(for res_init with -lresolv)
3526 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3527 #include <arpa/nameser.h>
3528 #include <resolv.h>]],
3529 [[return res_init();]])],
3530 have_res_init=yes, have_res_init=no)
3531 AC_MSG_RESULT($have_res_init)
3532 if test "$have_res_init" = yes ; then
3538 if test "$have_res_init" = yes; then
3539 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3543 # Do we need the Hesiod library to provide the support routines?
3544 dnl FIXME? Should we be skipping this on Darwin too?
3546 if test "$with_hesiod" != no ; then
3547 # Don't set $LIBS here -- see comments above. FIXME which comments?
3548 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3549 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3550 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3551 if test "$resolv" = yes ; then
3556 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3557 hesiod=yes, :, $RESOLVLIB)])
3559 if test x"$hesiod" = xyes; then
3565 # Do we need libresolv (due to res_init or Hesiod)?
3566 if test "$resolv" = yes && test $opsys != darwin; then
3573 # These tell us which Kerberos-related libraries to use.
3580 if test "${with_kerberos}" != no; then
3581 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3582 if test $have_com_err = yes; then
3583 COM_ERRLIB=-lcom_err
3584 LIBS="$COM_ERRLIB $LIBS"
3586 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3587 if test $have_crypto = yes; then
3589 LIBS="$CRYPTOLIB $LIBS"
3591 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3592 if test $have_k5crypto = yes; then
3593 CRYPTOLIB=-lk5crypto
3594 LIBS="$CRYPTOLIB $LIBS"
3596 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3597 if test $have_krb5=yes; then
3599 LIBS="$KRB5LIB $LIBS"
3601 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3602 if test "${with_kerberos5}" = no; then
3603 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3604 if test $have_des425 = yes; then
3606 LIBS="$DESLIB $LIBS"
3608 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3609 if test $have_des = yes; then
3611 LIBS="$DESLIB $LIBS"
3614 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3615 if test $have_krb4 = yes; then
3617 LIBS="$KRB4LIB $LIBS"
3619 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3620 if test $have_krb = yes; then
3622 LIBS="$KRB4LIB $LIBS"
3627 if test "${with_kerberos5}" != no; then
3628 AC_CHECK_HEADERS(krb5.h,
3629 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3630 [#include <krb5.h>])])
3632 AC_CHECK_HEADERS(krb.h,,
3633 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3634 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3636 AC_CHECK_HEADERS(com_err.h)
3639 AC_SUBST(COM_ERRLIB)
3645 AC_CHECK_FUNCS_ONCE(tzset)
3646 AC_MSG_CHECKING(whether localtime caches TZ)
3647 AC_CACHE_VAL(emacs_cv_localtime_cache,
3648 [if test x$ac_cv_func_tzset = xyes; then
3649 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3650 char TZ_GMT0[] = "TZ=GMT0";
3651 char TZ_PST8[] = "TZ=PST8";
3654 time_t now = time ((time_t *) 0);
3655 int hour_GMT0, hour_unset;
3656 if (putenv (TZ_GMT0) != 0)
3658 hour_GMT0 = localtime (&now)->tm_hour;
3660 hour_unset = localtime (&now)->tm_hour;
3661 if (putenv (TZ_PST8) != 0)
3663 if (localtime (&now)->tm_hour == hour_GMT0)
3666 if (localtime (&now)->tm_hour != hour_unset)
3669 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3670 [# If we have tzset, assume the worst when cross-compiling.
3671 emacs_cv_localtime_cache=yes])
3673 # If we lack tzset, report that localtime does not cache TZ,
3674 # since we can't invalidate the cache if we don't have tzset.
3675 emacs_cv_localtime_cache=no
3677 AC_MSG_RESULT($emacs_cv_localtime_cache)
3678 if test $emacs_cv_localtime_cache = yes; then
3679 AC_DEFINE(LOCALTIME_CACHE, 1,
3680 [Define to 1 if localtime caches TZ.])
3684 AC_CHECK_FUNC(socket, , ok_so_far=no)
3685 if test $ok_so_far = yes; then
3686 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3688 if test $ok_so_far = yes; then
3689 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3691 if test $ok_so_far = yes; then
3692 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3693 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3694 [Define to 1 if you have inet sockets.])
3697 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3698 dnl This can be removed once we assume Autoconf 2.70.
3700 *-solaris2.4 | *-solaris2.4.*)
3701 dnl Disable the Autoconf-generated vfork test.
3702 : ${ac_cv_func_vfork_works=no};;
3707 AC_CHECK_FUNCS(snprintf)
3709 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3712 AC_MSG_CHECKING([whether GLib is linked in])
3713 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3716 [[g_print ("Hello world");]])],
3719 AC_MSG_RESULT([$links_glib])
3720 if test "${links_glib}" = "yes"; then
3721 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3722 if test "$HAVE_NS" = no;then
3728 dnl Adapted from Haible's version.
3729 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3730 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3731 [[char* cs = nl_langinfo(CODESET);]])],
3732 emacs_cv_langinfo_codeset=yes,
3733 emacs_cv_langinfo_codeset=no)
3735 if test $emacs_cv_langinfo_codeset = yes; then
3736 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3737 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3742 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3743 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3744 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3745 if test "$emacs_cv_c_restrict_arr" = yes; then
3746 AC_DEFINE(__restrict_arr, __restrict,
3747 [Define to compiler's equivalent of C99 restrict keyword in array
3748 declarations. Define as empty for no equivalent.])
3751 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3752 dnl how the tty code is related to POSIX and/or other versions of termios.
3753 dnl The following looks like a useful start.
3755 dnl AC_SYS_POSIX_TERMIOS
3756 dnl if test $ac_cv_sys_posix_termios = yes; then
3757 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3758 dnl and macros for terminal control.])
3759 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3762 dnl Turned on June 1996 supposing nobody will mind it.
3763 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3764 if test "${opsys}" != "mingw32"; then
3765 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3766 in the full name stands for the login id.])
3769 dnl Every platform that uses configure supports this.
3770 dnl There is a create-lockfiles option you can
3771 dnl customize if you do not want the lock files to be written.
3772 dnl So it is not clear that this #define still needs to exist.
3773 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3774 so that Emacs can tell instantly when you try to modify a file that
3775 someone else has modified in his/her Emacs.])
3777 dnl Everybody supports this, except MS.
3778 dnl Seems like the kind of thing we should be testing for, though.
3779 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3780 if test "${opsys}" != "mingw32"; then
3781 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3784 dnl Everybody supports this, except MS-DOS.
3785 dnl Seems like the kind of thing we should be testing for, though.
3786 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3787 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3788 4.2-compatible sockets.])
3790 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3792 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3793 a null file, or a data sink.])
3794 if test "${opsys}" = "mingw32"; then
3795 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3797 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3800 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3801 if test "${opsys}" = "mingw32"; then
3802 AC_DEFINE(SEPCHAR, [';'])
3804 AC_DEFINE(SEPCHAR, [':'])
3807 dnl Everybody supports this, except MS-DOS.
3808 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3810 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3813 AC_DEFINE(DIRECTORY_SEP, ['/'],
3814 [Character that separates directories in a file name.])
3816 if test "${opsys}" = "mingw32"; then
3817 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3818 [Returns true if character is a device separator.])
3820 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3821 [Returns true if character is a directory separator.])
3823 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3824 [Returns true if character is any form of separator.])
3826 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3827 [Returns true if character is a device separator.])
3829 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3830 [Returns true if character is a directory separator.])
3832 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3833 [Returns true if character is any form of separator.])
3836 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3840 dnl Unfortunately without libXmu we cannot support EditRes.
3841 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3842 AC_DEFINE(NO_EDITRES, 1)
3847 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3848 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3849 AC_DEFINE(NO_EDITRES, 1)
3855 irix6-5 | sol2* | unixware )
3856 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3857 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3858 dnl need the constant to dimension an array. So wire in the appropriate
3860 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3864 emacs_broken_SIGIO=no
3867 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3868 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3869 hpux* | irix6-5 | openbsd | sol2* | unixware )
3870 emacs_broken_SIGIO=yes
3874 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3875 dnl the way this system works, libc functions that return malloced
3876 dnl memory use the libc malloc implementation. Calling xfree or
3877 dnl xrealloc on the results of such functions results in a crash.
3879 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3880 dnl but that does not currently work on this system.
3882 dnl It is possible to completely override the malloc implementation on
3883 dnl AIX, but that involves putting the malloc functions in a shared
3884 dnl library and setting the MALLOCTYPE environment variable to point to
3885 dnl that shared library.
3887 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3888 dnl to avoid a crash just use the Emacs implementation for that function.
3890 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3891 dnl of this file, so that we do not check for get_current_dir_name
3892 dnl on AIX. But that might be fragile if something else ends
3893 dnl up testing for get_current_dir_name as a dependency.
3894 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3895 get_current_dir_name should not be used.])
3899 dnl Circumvent a bug in FreeBSD. In the following sequence of
3900 dnl writes/reads on a PTY, read(2) returns bogus data:
3902 dnl write(2) 1022 bytes
3903 dnl write(2) 954 bytes, get EAGAIN
3904 dnl read(2) 1024 bytes in process_read_output
3905 dnl read(2) 11 bytes in process_read_output
3907 dnl That is, read(2) returns more bytes than have ever been written
3908 dnl successfully. The 1033 bytes read are the 1022 bytes written
3909 dnl successfully after processing (for example with CRs added if the
3910 dnl terminal is set up that way which it is here). The same bytes will
3911 dnl be seen again in a later read(2), without the CRs.
3912 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3913 work around an issue when reading from a PTY.])
3919 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3920 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3925 darwin | dragonfly | freebsd | netbsd | openbsd )
3926 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3927 close a pty to make it a controlling terminal (it is already a
3928 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3932 dnl FIXME Surely we can test for this rather than hard-code it.
3934 netbsd | openbsd) sound_device="/dev/audio" ;;
3935 *) sound_device="/dev/dsp" ;;
3939 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3940 [Name of the default sound device.])
3943 dnl Emacs can read input using SIGIO and buffering characters itself,
3944 dnl or using CBREAK mode and making C-g cause SIGINT.
3945 dnl The choice is controlled by the variable interrupt_input.
3947 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3949 dnl Emacs uses the presence of the USABLE_SIGIO macro
3950 dnl to indicate whether or not signal-driven I/O is possible. It uses
3951 dnl INTERRUPT_INPUT to decide whether to use it by default.
3953 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3954 dnl CBREAK mode has two disadvantages
3955 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3956 dnl I hear that in system V this problem does not exist.
3957 dnl 2) Control-G causes output to be discarded.
3958 dnl I do not know whether this can be fixed in system V.
3960 dnl Another method of doing input is planned but not implemented.
3961 dnl It would have Emacs fork off a separate process
3962 dnl to read the input and send it to the true Emacs process
3965 darwin | gnu-linux | gnu-kfreebsd )
3966 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3971 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3972 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3973 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3974 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3975 dnl taking float or double parameters.
3977 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3978 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3979 file defines `NeedWidePrototypes' as `NO'.])
3984 dnl Used in process.c, this must be a loop, even if it only runs once.
3985 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3986 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3987 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3988 dnl trying suffixes 0-16.
3989 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3990 first PTY, if PTYs are supported.])
3991 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3992 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3993 end of a PTY, if non-standard.])
3994 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3995 end of a PTY, if non-standard.])
3999 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4000 dnl You allocate a pty by opening /dev/ptc to get the master side.
4001 dnl To get the name of the slave side, you just ttyname() the master side.
4002 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4003 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4007 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4008 dnl multi-line AC_DEFINEs are hard. :(
4009 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)])
4010 AC_DEFINE(PTY_NAME_SPRINTF, [])
4011 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4014 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4016 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4017 dnl Not used, because PTY_ITERATION is defined.
4018 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4019 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4020 dnl But we don't have to block SIGCHLD because it is blocked in the
4021 dnl implementation of grantpt.
4022 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4023 AC_DEFINE(PTY_NAME_SPRINTF, [])
4024 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4028 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4031 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4033 if test "x$ac_cv_func_grantpt" = xyes; then
4034 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4035 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4036 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4037 dnl to prevent sigchld_handler from intercepting the child's death.
4038 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); }])
4039 dnl if HAVE_POSIX_OPENPT
4040 if test "x$ac_cv_func_posix_openpt" = xyes; then
4041 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4042 AC_DEFINE(PTY_NAME_SPRINTF, [])
4044 elif test "x$ac_cv_func_getpt" = xyes; then
4045 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4046 AC_DEFINE(PTY_NAME_SPRINTF, [])
4048 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4051 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4056 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4057 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4058 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4062 dnl It looks like this cannot be right, because it is not a loop.
4063 dnl However, process.c actually does this:
4069 dnl which presumably makes it OK, since irix == sgi (?).
4070 dnl FIXME it seems like this special treatment is unnecessary?
4071 dnl Why can't irix use a single-trip loop like eg cygwin?
4072 AC_DEFINE(PTY_ITERATION, [])
4073 dnl Not used, because PTY_ITERATION is defined.
4074 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4075 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); }])
4076 dnl No need to get the pty name at all.
4077 AC_DEFINE(PTY_NAME_SPRINTF, [])
4078 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4079 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4083 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4084 dnl from intercepting that death. If any child but grantpt's should die
4085 dnl within, it should be caught after sigrelse(2).
4086 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); }])
4090 dnl Comments are as per sol2*.
4091 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); }])
4098 dnl This change means that we don't loop through allocate_pty too
4099 dnl many times in the (rare) event of a failure.
4100 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4101 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4102 dnl Push various streams modules onto a PTY channel. Used in process.c.
4103 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.])
4108 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4109 "typing" a signal character on the pty.])
4112 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4113 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4114 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4115 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4118 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4119 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4120 gnu-linux | gnu-kfreebsd )
4122 AC_MSG_CHECKING([for signals via characters])
4123 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4124 #include <linux/version.h>
4125 #if LINUX_VERSION_CODE < 0x20400
4126 # error "Linux version too old"
4128 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4130 AC_MSG_RESULT([$emacs_signals_via_chars])
4131 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4136 dnl Used in lisp.h, emacs.c, vm-limit.c
4137 dnl NEWS.18 describes this as "a number which contains
4138 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4139 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4140 stored in a Lisp_Object.])
4141 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4145 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4146 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4149 dnl The data segment on this machine always starts at address 0x40000000.
4150 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4153 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4158 AH_TEMPLATE(TAB3, [Undocumented.])
4161 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4163 gnu | dragonfly | freebsd | netbsd | openbsd )
4164 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4165 AC_DEFINE(TAB3, OXTABS)
4168 gnu-linux | gnu-kfreebsd )
4169 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4173 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4174 [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)],
4175 [Mark a secondary stack, like the register stack on the ia64.]), [])
4179 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4180 run_time_remap; for HPUX.])
4185 dnl This won't be used automatically yet. We also need to know, at least,
4186 dnl that the stack is continuous.
4187 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4188 registers relevant for conservative garbage collection in the jmp_buf.])
4192 dnl Not all the architectures are tested, but there are Debian packages
4193 dnl for SCM and/or Guile on them, so the technique must work. See also
4194 dnl comments in alloc.c concerning setjmp and gcc.
4195 dnl Fixme: it's probably safe to just use the GCC conditional below.
4196 gnu-linux | gnu-kfreebsd )
4197 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4198 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4199 || defined __alpha__ || defined __mips__ || defined __s390__ \
4200 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4201 || defined __ia64__ || defined __sh__
4204 # error "setjmp not known to work on this arch"
4206 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4211 if test x$GCC = xyes; then
4212 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4213 AC_DEFINE(GC_SETJMP_WORKS, 1)
4216 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4217 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4218 AC_DEFINE(GC_SETJMP_WORKS, 1)
4223 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4224 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4227 [[#include <setjmp.h>
4229 # define _longjmp longjmp
4234 _longjmp (j, 1);]])],
4235 [emacs_cv_func__setjmp=yes],
4236 [emacs_cv_func__setjmp=no])])
4237 if test $emacs_cv_func__setjmp = yes; then
4238 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4240 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4243 [[#include <setjmp.h>
4246 if (! sigsetjmp (j, 1))
4247 siglongjmp (j, 1);]])],
4248 [emacs_cv_func_sigsetjmp=yes],
4249 [emacs_cv_func_sigsetjmp=no])])
4250 if test $emacs_cv_func_sigsetjmp = yes; then
4251 AC_DEFINE([HAVE_SIGSETJMP], 1,
4252 [Define to 1 if sigsetjmp and siglongjmp work.
4253 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4259 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4260 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4261 dnl and this is all we need.
4262 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4269 dnl Used in xfaces.c.
4270 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4271 some systems, where it requires time.h.])
4276 dnl Define symbols to identify the version of Unix this is.
4277 dnl Define all the symbols that apply correctly.
4278 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4279 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4280 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4281 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4286 dnl This symbol should be defined on AIX Version 3 ???????
4287 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4289 # error "_AIX not defined"
4291 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4295 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4299 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4300 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4301 dnl distinguish OS X from pure Darwin.
4302 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4305 gnu-linux | gnu-kfreebsd )
4307 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4312 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4317 AC_DEFINE(USG5_4, [])
4318 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4322 AC_DEFINE(DOS_NT, [])
4323 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4324 if test "x$ac_enable_checking" != "x" ; then
4325 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4331 AC_DEFINE(USG5_4, [])
4332 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4337 AC_DEFINE(USG5_4, [])
4341 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4344 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4345 emacs_cv_usable_FIONREAD=no
4349 emacs_cv_usable_FIONREAD=yes
4354 [AC_LANG_PROGRAM([[#include <sys/types.h>
4355 #include <sys/ioctl.h>
4357 # include <sys/filio.h>
4360 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4361 [emacs_cv_usable_FIONREAD=yes],
4362 [emacs_cv_usable_FIONREAD=no])
4365 if test $emacs_cv_usable_FIONREAD = yes; then
4366 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4368 if test $emacs_broken_SIGIO = no; then
4369 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4371 [AC_LANG_PROGRAM([[#include <fcntl.h>
4374 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4375 [emacs_cv_usable_SIGIO=yes],
4376 [emacs_cv_usable_SIGIO=no])],
4377 [emacs_cv_usable_SIGIO=yes],
4378 [emacs_cv_usable_SIGIO=no])
4379 if test $emacs_cv_usable_SIGIO = yes; then
4380 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4387 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4388 dnl and on Cygwin prior to version 1.7.24 that becomes the
4389 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4390 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4391 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4392 dnl needed starting with cygwin-1.7.24, and it is no longer
4393 dnl effective starting with glib-2.36. */
4395 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4396 G_SLICE environment variable to "always-malloc" at startup.])
4400 dnl It works to open the pty's tty in the parent (Emacs), then
4401 dnl close and reopen it in the child.
4402 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4403 works to open a pty's tty in the parent process, then close and
4404 reopen it in the child.])
4408 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4409 use VSUSP instead of VSWTCH.])
4413 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4418 # Set up the CFLAGS for real compilation, so we can substitute it.
4419 CFLAGS="$REAL_CFLAGS"
4420 CPPFLAGS="$REAL_CPPFLAGS"
4422 ## Hack to detect a buggy GCC version.
4423 if test "x$GCC" = xyes \
4424 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4425 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4426 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4427 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4430 version=$PACKAGE_VERSION
4432 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4433 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4434 [Short copyright string for this version of Emacs.])
4437 ### Specify what sort of things we'll be editing into Makefile and config.h.
4438 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4440 AC_SUBST(configuration)
4445 AC_SUBST(exec_prefix)
4448 AC_SUBST(sharedstatedir)
4449 AC_SUBST(libexecdir)
4454 AC_SUBST(standardlisppath)
4455 AC_SUBST(locallisppath)
4457 AC_SUBST(x_default_search_path)
4459 AC_SUBST(archlibdir)
4464 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4465 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4466 ## end of LIBX_BASE, but nothing ever set it.
4467 AC_SUBST(LD_SWITCH_X_SITE)
4468 AC_SUBST(C_SWITCH_X_SITE)
4469 AC_SUBST(GNUSTEP_CFLAGS)
4471 ## Used in lwlib/Makefile.in.
4472 AC_SUBST(X_TOOLKIT_TYPE)
4474 AC_SUBST(ns_appbindir)
4475 AC_SUBST(ns_appresdir)
4477 AC_SUBST(GNU_OBJC_CFLAGS)
4478 AC_SUBST(OTHER_FILES)
4480 if test -n "${term_header}"; then
4481 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4482 [Define to the header for the built-in window system.])
4485 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4486 [Define to the canonical Emacs configuration name.])
4487 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4488 [Define to the options passed to configure.])
4489 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4490 define this to include extra configuration information.])
4494 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4501 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4502 AC_DEFINE(HAVE_X_WINDOWS, 1,
4503 [Define to 1 if you want to use the X window system.])
4505 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4507 if test "$HAVE_XFT" = "yes"; then
4508 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4509 elif test "$HAVE_FREETYPE" = "yes"; then
4510 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4520 if test "${USE_X_TOOLKIT}" != "none" ; then
4522 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4523 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4524 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4525 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4526 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4530 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4531 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4535 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4536 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4537 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4541 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4542 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4545 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4548 AC_SUBST(WIDGET_OBJ)
4551 case "$USE_X_TOOLKIT" in
4552 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4553 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4554 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4556 AC_SUBST(TOOLKIT_LIBW)
4558 if test "${opsys}" != "mingw32"; then
4559 if test "$USE_X_TOOLKIT" = "none"; then
4560 LIBXT_OTHER="\$(LIBXSM)"
4561 OLDXMENU_TARGET="really-oldXMenu"
4563 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4564 OLDXMENU_TARGET="really-lwlib"
4567 AC_SUBST(LIBXT_OTHER)
4569 ## The X Menu stuff is present in the X10 distribution, but missing
4570 ## from X11. If we have X10, just use the installed library;
4571 ## otherwise, use our own copy.
4572 if test "${HAVE_X11}" = "yes" ; then
4573 AC_DEFINE(HAVE_X11, 1,
4574 [Define to 1 if you want to use version 11 of X windows.
4575 Otherwise, Emacs expects to use version 10.])
4577 if test "$USE_X_TOOLKIT" = "none"; then
4578 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4580 OLDXMENU="\${lwlibdir}/liblw.a"
4582 LIBXMENU="\$(OLDXMENU)"
4583 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4584 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4586 ## For a syntactically valid Makefile; not actually used for anything.
4587 ## See comments in src/Makefile.in.
4589 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4590 if test "${HAVE_X_WINDOWS}" = "yes"; then
4599 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4606 AC_SUBST(OLDXMENU_TARGET)
4609 AC_SUBST(LIBX_OTHER)
4610 AC_SUBST(OLDXMENU_DEPS)
4612 if test "${HAVE_MENUS}" = "yes" ; then
4613 AC_DEFINE(HAVE_MENUS, 1,
4614 [Define to 1 if you have mouse menus.
4615 (This is automatic if you use X, but the option to specify it remains.)
4616 It is also defined with other window systems that support xmenu.c.])
4619 if test "${GNU_MALLOC}" = "yes" ; then
4620 AC_DEFINE(GNU_MALLOC, 1,
4621 [Define to 1 if you want to use the GNU memory allocator.])
4625 if test "${REL_ALLOC}" = "yes" ; then
4626 AC_DEFINE(REL_ALLOC, 1,
4627 [Define REL_ALLOC if you want to use the relocating allocator for
4630 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4632 AC_SUBST(RALLOC_OBJ)
4634 if test "$opsys" = "cygwin"; then
4635 CYGWIN_OBJ="sheap.o cygw32.o"
4636 ## Cygwin differs because of its unexec().
4638 POST_ALLOC_OBJ=lastfile.o
4639 elif test "$opsys" = "mingw32"; then
4642 POST_ALLOC_OBJ=lastfile.o
4645 PRE_ALLOC_OBJ=lastfile.o
4648 AC_SUBST(CYGWIN_OBJ)
4649 AC_SUBST(PRE_ALLOC_OBJ)
4650 AC_SUBST(POST_ALLOC_OBJ)
4652 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4653 # it temporarily reverts them to their pre-pkg-config values,
4654 # because gnulib needs to work with both src (which uses the
4655 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4656 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4657 # and it therefore needs to run in an environment where LIBS does not
4658 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4659 # for some package unrelated to lib-src.
4662 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4663 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4664 gl_ASSERT_NO_GNULIB_POSIXCHECK
4665 gl_ASSERT_NO_GNULIB_TESTS
4670 if test "${opsys}" = "mingw32"; then
4671 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4672 # Remove unneeded switches from the value of CC that goes to Makefiles
4673 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4677 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4680 ## The -headerpad option tells ld (see man page) to leave room at the
4681 ## end of the header for adding load commands. Needed for dumping.
4682 ## 0x690 is the total size of 30 segment load commands (at 56
4683 ## each); under Cocoa 31 commands are required.
4684 if test "$HAVE_NS" = "yes"; then
4685 libs_nsgui="-framework AppKit"
4686 if test "$NS_IMPL_COCOA" = "yes"; then
4687 libs_nsgui="$libs_nsgui -framework IOKit"
4694 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4696 ## This is here because src/Makefile.in did some extra fiddling around
4697 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4698 ## LD_SWITCH_SYSTEM_TEMACS instead,
4699 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4700 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4703 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4704 ## find X at run-time.
4705 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4706 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4707 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4708 ## had different values in configure (in ac_link) and src/Makefile.in.
4709 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4710 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4713 ## MinGW64 does not prepend an underscore to symbols, so we must
4714 ## pass a different -entry switch to linker. FIXME: It is better
4715 ## to make the entry points the same by changing unexw32.c.
4716 case "$canonical" in
4717 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4718 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4722 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4724 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4727 if test x$ac_enable_profiling != x ; then
4729 *freebsd | gnu-linux) ;;
4730 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4734 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4736 ## MinGW-specific post-link processing of temacs.
4737 TEMACS_POST_LINK=":"
4740 if test "${opsys}" = "mingw32"; then
4741 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4742 ADDSECTION="../nt/addsection\$(EXEEXT)"
4743 ## Preload heap size of temacs.exe in MB.
4744 case "$canonical" in
4745 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4746 *) EMACS_HEAPSIZE=27 ;;
4750 AC_SUBST(ADDSECTION)
4751 AC_SUBST(TEMACS_POST_LINK)
4752 AC_SUBST(EMACS_HEAPSIZE)
4754 ## Common for all window systems
4755 if test "$window_system" != "none"; then
4756 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4757 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4760 AC_SUBST(WINDOW_SYSTEM_OBJ)
4762 AH_TOP([/* GNU Emacs site configuration template file.
4764 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4765 Free Software Foundation, Inc.
4767 This file is part of GNU Emacs.
4769 GNU Emacs is free software: you can redistribute it and/or modify
4770 it under the terms of the GNU General Public License as published by
4771 the Free Software Foundation, either version 3 of the License, or
4772 (at your option) any later version.
4774 GNU Emacs is distributed in the hope that it will be useful,
4775 but WITHOUT ANY WARRANTY; without even the implied warranty of
4776 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4777 GNU General Public License for more details.
4779 You should have received a copy of the GNU General Public License
4780 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4783 /* No code in Emacs #includes config.h twice, but some bits of code
4784 intended to work with other packages as well (like gmalloc.c)
4785 think they can include it as many times as they like. */
4786 #ifndef EMACS_CONFIG_H
4787 #define EMACS_CONFIG_H
4790 AH_BOTTOM([#include <conf_post.h>
4792 #endif /* EMACS_CONFIG_H */
4801 #### Report on what we decided to do.
4802 #### Report GTK as a toolkit, even if it doesn't use Xt.
4803 #### It makes printing result more understandable as using GTK sets
4804 #### toolkit_scroll_bars to yes by default.
4805 if test "${HAVE_GTK}" = "yes"; then
4806 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4809 if test $USE_ACL -ne 0; then
4810 acl_summary="yes $LIB_ACL"
4816 Configured for \`${canonical}'.
4818 Where should the build process find the source code? ${srcdir}
4819 What compiler should emacs be built with? ${CC} ${CFLAGS}
4820 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4821 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4822 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4823 What window system should Emacs use? ${window_system}
4824 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4826 if test -n "${x_includes}"; then
4827 echo " Where do we find X Windows header files? ${x_includes}"
4829 echo " Where do we find X Windows header files? Standard dirs"
4831 if test -n "${x_libraries}"; then
4832 echo " Where do we find X Windows libraries? ${x_libraries}"
4834 echo " Where do we find X Windows libraries? Standard dirs"
4837 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4838 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4839 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4840 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4841 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4842 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4843 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4844 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4846 echo " Does Emacs support sound? ${HAVE_SOUND}"
4848 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4849 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4850 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4851 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4852 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4853 echo " Does Emacs use access control lists? ${acl_summary}"
4854 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4855 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4856 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4858 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4859 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4860 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4861 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4862 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4864 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4867 if test -n "${EMACSDATA}"; then
4868 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4870 if test -n "${EMACSDOC}"; then
4871 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4876 if test "$HAVE_NS" = "yes"; then
4878 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4879 The installed application will go to nextstep/Emacs.app and can be
4880 run or moved from there."
4881 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4882 echo "The application will be fully self-contained."
4884 echo "The lisp resources for the application will be installed under ${prefix}.
4885 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4886 to run if these resources are not installed."
4891 if test "${opsys}" = "cygwin"; then
4893 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4899 # Remove any trailing slashes in these variables.
4900 [test "${prefix}" != NONE &&
4901 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4902 test "${exec_prefix}" != NONE &&
4903 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4905 if test "$HAVE_NS" = "yes"; then
4906 if test "$NS_IMPL_GNUSTEP" = yes; then
4907 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4908 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4910 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4911 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4915 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4916 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4917 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4918 dnl (else you get "no `Makefile.am' found for any configure output").
4919 dnl This will work, but you get a config.status that is not quite right
4920 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4921 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4922 dnl it seems better to just live with the duplication.
4923 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4925 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4926 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4927 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4928 leim/Makefile nextstep/Makefile nt/Makefile])
4930 dnl test/ is not present in release tarfiles.
4931 opt_makefile=test/automated/Makefile
4933 if test -f "$srcdir/$opt_makefile.in"; then
4934 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4935 dnl Again, it's best not to use a variable. Though you can add
4936 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4937 AC_CONFIG_FILES([test/automated/Makefile])
4941 dnl admin/ may or may not be present.
4942 opt_makefile=admin/unidata/Makefile
4944 if test -f "$srcdir/$opt_makefile.in"; then
4945 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4946 AC_CONFIG_FILES([admin/unidata/Makefile])
4950 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4952 AC_SUBST(SUBDIR_MAKEFILES_IN)
4954 dnl You might wonder (I did) why epaths.h is generated by running make,
4955 dnl rather than just letting configure generate it from epaths.in.
4956 dnl One reason is that the various paths are not fully expanded (see above);
4957 dnl eg gamedir=${prefix}/var/games/emacs.
4958 dnl Secondly, the GNU Coding standards require that one should be able
4959 dnl to run `make prefix=/some/where/else' and override the values set
4960 dnl by configure. This also explains the `move-if-change' test and
4961 dnl the use of force in the `epaths-force' rule in Makefile.in.
4962 AC_CONFIG_COMMANDS([src/epaths.h], [
4963 if test "${opsys}" = "mingw32"; then
4964 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4966 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4968 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4970 AC_CONFIG_COMMANDS([src/.gdbinit], [
4971 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4972 echo "source $srcdir/src/.gdbinit" > src/.gdbinit