1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2013 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.3.50)
27 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
28 dnl and then quoted again for a C string. Separate options with spaces.
29 dnl Add some environment variables, if they were passed via the environment
30 dnl rather than on the command-line.
33 dnl This is the documented way to record the args passed to configure,
34 dnl rather than $ac_configure_args.
35 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
37 -n | --no-create | --no-recursion)
39 CFLAGS | CPPFLAGS | LDFLAGS)
40 eval 'test "${'$opt'+set}" = set' || continue
42 *" $opt="*) continue ;;
44 eval opt=$opt=\$$opt ;;
47 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
49 *[["$emacs_shell_specials"]]*)
52 emacs_quote_apostrophes="s/'/'\\\\''/g"
53 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
58 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
59 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
62 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
66 AC_CONFIG_HEADER(src/config.h:src/config.in)
67 AC_CONFIG_SRCDIR(src/lisp.h)
68 AC_CONFIG_AUX_DIR(build-aux)
69 dnl Fairly arbitrary, older versions might work too.
70 AM_INIT_AUTOMAKE(1.11)
72 dnl Support for --program-prefix, --program-suffix and
73 dnl --program-transform-name options
76 dnl It is important that variables on the RHS not be expanded here,
77 dnl hence the single quotes. This is per the GNU coding standards, see
78 dnl (autoconf) Installation Directory Variables
79 dnl See also epaths.h below.
80 lispdir='${datadir}/emacs/${version}/lisp'
81 leimdir='${datadir}/emacs/${version}/leim'
82 standardlisppath='${lispdir}:${leimdir}'
83 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
84 '${datadir}/emacs/site-lisp'
85 lisppath='${locallisppath}:${standardlisppath}'
86 etcdir='${datadir}/emacs/${version}/etc'
87 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
88 etcdocdir='${datadir}/emacs/${version}/etc'
89 gamedir='${localstatedir}/games/emacs'
91 dnl Special option to disable the most of other options.
93 [AS_HELP_STRING([--without-all],
94 [omit almost all features and build
95 small executable with minimal dependencies])],
96 with_features=$withval,
99 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
100 dnl Create a new --with option that defaults to being disabled.
101 dnl NAME is the base name of the option. The shell variable with_NAME
102 dnl will be set to either the user's value (if the option is
103 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
104 dnl option is not specified). Note that the shell variable name is
105 dnl constructed as autoconf does, by replacing non-alphanumeric
106 dnl characters with "_".
107 dnl HELP-STRING is the help text for the option.
108 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
109 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
110 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
113 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
114 dnl Create a new --with option that defaults to $with_features.
115 dnl NAME is the base name of the option. The shell variable with_NAME
116 dnl will be set either to 'no' (for a plain --without-NAME) or to
117 dnl 'yes' (if the option is not specified). Note that the shell
118 dnl variable name is constructed as autoconf does, by replacing
119 dnl non-alphanumeric characters with "_".
120 dnl HELP-STRING is the help text for the option.
121 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
122 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
123 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
126 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
127 if test "$with_pop" = yes; then
128 AC_DEFINE(MAIL_USE_POP)
130 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
132 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
133 if test "$with_kerberos" != no; then
136 AH_TEMPLATE(KERBEROS,
137 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
139 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
140 if test "${with_kerberos5}" != no; then
141 if test "${with_kerberos}" = no; then
145 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
148 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
149 dnl FIXME hesiod support may not be present, so it seems like an error
150 dnl to define, or at least use, this unconditionally.
151 if test "$with_hesiod" != no; then
152 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
155 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
156 if test "$with_mmdf" != no; then
157 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
160 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
161 if test "$with_mail_unlink" != no; then
162 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
165 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
166 [string giving default POP mail host])],
167 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
169 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
170 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
171 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
172 [ case "${withval}" in
173 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
174 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
175 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
180 [with_sound=$with_features])
182 dnl FIXME currently it is not the last.
183 dnl This should be the last --with option, because --with-x is
184 dnl added later on when we find the file name of X, and it's best to
185 dnl keep them together visually.
186 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
187 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
188 [ case "${withval}" in
189 y | ye | yes ) val=gtk ;;
191 l | lu | luc | luci | lucid ) val=lucid ;;
192 a | at | ath | athe | athen | athena ) val=athena ;;
193 m | mo | mot | moti | motif ) val=motif ;;
194 g | gt | gtk ) val=gtk ;;
198 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
199 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
200 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
201 `athena' and `lucid' are synonyms.])
207 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
208 if test "$with_wide_int" = yes; then
209 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
212 dnl _ON results in a '--without' option in the --help output, so
213 dnl the help text should refer to "don't compile", etc.
214 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
215 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
216 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
217 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
218 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
219 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
220 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
221 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
223 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
224 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
225 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
227 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
228 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
229 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
230 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
231 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
233 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
234 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
235 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
236 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
237 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
238 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
239 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
241 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
242 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
243 [ case "${withval}" in
244 y | ye | yes ) val=yes ;;
246 g | gf | gfi | gfil | gfile ) val=gfile ;;
247 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
248 w | w3 | w32 ) val=w32 ;;
249 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
250 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
251 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
252 otherwise for the first of `gfile' or `inotify' that is usable.])
255 with_file_notification=$val
257 [with_file_notification=$with_features])
259 ## For the times when you want to build Emacs but don't have
260 ## a suitable makeinfo, and can live without the manuals.
261 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
262 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
264 ## Makefile.in needs the cache file name.
267 ## This is an option because I do not know if all info/man support
268 ## compressed files, nor how to test if they do so.
269 OPTION_DEFAULT_ON([compress-install],
270 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
271 make GZIP_PROG= install])
273 AC_ARG_WITH([pkg-config-prog],dnl
274 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
275 [file name of pkg-config for finding GTK and librsvg])])
276 if test "X${with_pkg_config_prog}" != X; then
277 if test "${with_pkg_config_prog}" != yes; then
278 PKG_CONFIG="${with_pkg_config_prog}"
282 AC_ARG_WITH(gameuser,dnl
283 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
284 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
285 && gameuser="${with_gameuser}"
286 test "X$gameuser" = X && gameuser=games
288 AC_ARG_WITH([gnustep-conf],dnl
289 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
290 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
291 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
292 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
293 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
294 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
296 AC_ARG_ENABLE(ns-self-contained,
297 [AS_HELP_STRING([--disable-ns-self-contained],
298 [disable self contained build under NeXTstep])],
299 EN_NS_SELF_CONTAINED=$enableval,
300 EN_NS_SELF_CONTAINED=yes)
302 AC_ARG_ENABLE(locallisppath,
303 [AS_HELP_STRING([--enable-locallisppath=PATH],
304 [directories Emacs should search for lisp files specific
306 if test "${enableval}" = "no"; then
308 elif test "${enableval}" != "yes"; then
309 locallisppath=${enableval}
312 AC_ARG_ENABLE(checking,
313 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
314 [enable expensive run-time checks. With LIST,
315 enable only specific categories of checks.
316 Categories are: all,yes,no.
317 Flags are: stringbytes, stringoverrun, stringfreelist,
318 xmallocoverrun, conslist, glyphs])],
319 [ac_checking_flags="${enableval}"],[])
320 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
321 for check in $ac_checking_flags
324 # these set all the flags to specific states
325 yes) ac_enable_checking=1 ;;
326 no) ac_enable_checking= ;
327 ac_gc_check_stringbytes= ;
328 ac_gc_check_string_overrun= ;
329 ac_gc_check_string_free_list= ;
330 ac_xmalloc_overrun= ;
331 ac_gc_check_cons_list= ;
333 all) ac_enable_checking=1 ;
334 ac_gc_check_stringbytes=1 ;
335 ac_gc_check_string_overrun=1 ;
336 ac_gc_check_string_free_list=1 ;
337 ac_xmalloc_overrun=1 ;
338 ac_gc_check_cons_list=1 ;
340 # these enable particular checks
341 stringbytes) ac_gc_check_stringbytes=1 ;;
342 stringoverrun) ac_gc_check_string_overrun=1 ;;
343 stringfreelist) ac_gc_check_string_free_list=1 ;;
344 xmallocoverrun) ac_xmalloc_overrun=1 ;;
345 conslist) ac_gc_check_cons_list=1 ;;
346 glyphs) ac_glyphs_debug=1 ;;
347 *) AC_MSG_ERROR(unknown check category $check) ;;
352 if test x$ac_enable_checking != x ; then
353 AC_DEFINE(ENABLE_CHECKING, 1,
354 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
356 if test x$ac_gc_check_stringbytes != x ; then
357 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
358 [Define this temporarily to hunt a bug. If defined, the size of
359 strings is redundantly recorded in sdata structures so that it can
360 be compared to the sizes recorded in Lisp strings.])
362 if test x$ac_gc_check_string_overrun != x ; then
363 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
364 [Define this to check for short string overrun.])
366 if test x$ac_gc_check_string_free_list != x ; then
367 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
368 [Define this to check the string free list.])
370 if test x$ac_xmalloc_overrun != x ; then
371 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
372 [Define this to check for malloc buffer overrun.])
374 if test x$ac_gc_check_cons_list != x ; then
375 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
376 [Define this to check for errors in cons list.])
378 if test x$ac_glyphs_debug != x ; then
379 AC_DEFINE(GLYPH_DEBUG, 1,
380 [Define this to enable glyphs debugging code.])
383 AC_ARG_ENABLE(check-lisp-object-type,
384 [AS_HELP_STRING([--enable-check-lisp-object-type],
385 [enable compile time checks for the Lisp_Object data type.
386 This is useful for development for catching certain types of bugs.])],
387 if test "${enableval}" != "no"; then
388 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
389 [Define this to enable compile time checks for the Lisp_Object data type.])
393 dnl The name of this option is unfortunate. It predates, and has no
394 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
395 dnl Actually, it stops it working.
396 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
397 AC_ARG_ENABLE(profiling,
398 [AS_HELP_STRING([--enable-profiling],
399 [build emacs with low-level, gprof profiling support.
400 Mainly useful for debugging Emacs itself. May not work on
401 all platforms. Stops profiler.el working.])],
402 [ac_enable_profiling="${enableval}"],[])
403 if test x$ac_enable_profiling != x ; then
404 PROFILING_CFLAGS="-DPROFILING=1 -pg"
408 AC_SUBST(PROFILING_CFLAGS)
410 AC_ARG_ENABLE(autodepend,
411 [AS_HELP_STRING([--enable-autodepend],
412 [automatically generate dependencies to .h-files.
413 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
415 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
417 AC_ARG_ENABLE(gtk-deprecation-warnings,
418 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
419 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
420 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
422 #### Make srcdir absolute, if it isn't already. It's important to
423 #### avoid running the file name through pwd unnecessarily, since pwd can
424 #### give you automounter prefixes, which can go away. We do all this
425 #### so Emacs can find its files when run uninstalled.
426 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
429 [[\\/]]* | ?:[[\\/]]*) ;;
431 ## We may be able to use the $PWD environment variable to make this
432 ## absolute. But sometimes PWD is inaccurate.
433 ## Note: we used to use $PWD at the end instead of `pwd`,
434 ## but that tested only for a well-formed and valid PWD,
435 ## it did not object when PWD was well-formed and valid but just wrong.
436 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
440 srcdir=`(cd "$srcdir"; pwd)`
443 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
446 ### Canonicalize the configuration name.
450 configuration=${host_alias-${build_alias-$host}}
452 dnl This used to use changequote, but, apart from `changequote is evil'
453 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
454 dnl the great gob of text. Thus it's not processed for possible expansion.
455 dnl Just make sure the brackets remain balanced.
457 dnl Since Emacs can't find matching pairs of quotes, boundaries are
458 dnl indicated by comments.
462 ### If you add support for a new configuration, add code to this
463 ### switch statement to recognize your configuration name and select
464 ### the appropriate operating system file.
466 ### You would hope that you could choose an s/*.h
467 ### file based on the operating system portion. However, it turns out
468 ### that each s/*.h file is pretty manufacturer-specific.
469 ### So we basically have to have a special case for each
470 ### configuration name.
472 ### As far as handling version numbers on operating systems is
473 ### concerned, make sure things will fail in a fixable way. If
474 ### /etc/MACHINES doesn't say anything about version numbers, be
475 ### prepared to handle anything reasonably. If version numbers
476 ### matter, be sure /etc/MACHINES says something about it.
479 case "${canonical}" in
481 ## GNU/Linux and similar ports
496 ## FreeBSD kernel + glibc based userland
511 ## Apple Darwin / Mac OS X
513 case "${canonical}" in
520 ## Use fink packages if available.
521 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
522 ## if test -d /sw/include && test -d /sw/lib; then
523 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
524 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
533 ## HP 9000 series 700 and 800, running HP/UX
537 hppa*-hp-hpux1[1-9]* )
539 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
543 rs6000-ibm-aix4.[23]* )
546 powerpc-ibm-aix4.[23]* )
549 rs6000-ibm-aix[56]* )
552 powerpc-ibm-aix[56]* )
556 ## Silicon Graphics machines
560 # Without defining _LANGUAGE_C, things get masked out in the headers
561 # so that, for instance, grepping for `free' in stdlib.h fails and
562 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
563 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
568 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
569 | x86_64-*-solaris2* | x86_64-*-sunos5*)
570 case "${canonical}" in
572 amd64-*-*|x86_64-*-*) ;;
576 case "${canonical}" in
577 *-sunos5.6* | *-solaris2.6* )
581 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
583 emacs_check_sunpro_c=yes
585 *-sunos5* | *-solaris* )
587 emacs_check_sunpro_c=yes
590 ## Watch out for a compiler that we know will not work.
591 case "${canonical}" in
592 *-solaris* | *-sunos5* )
593 if [ "x$CC" = x/usr/ucb/cc ]; then
594 ## /usr/ucb/cc doesn't work;
595 ## we should find some other compiler that does work.
603 ## Intel 386 machines where we don't care about the manufacturer.
605 case "${canonical}" in
606 *-darwin* ) opsys=darwin ;;
609 # MinGW overrides and adds some system headers in nt/inc.
610 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
612 *-sysv4.2uw* ) opsys=unixware ;;
613 *-sysv5uw* ) opsys=unixware ;;
614 *-sysv5OpenUNIX* ) opsys=unixware ;;
615 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
624 ### If the code above didn't choose an operating system, just choose
625 ### an operating system based on the configuration name. You really
626 ### only want to use this when you have no idea what the right
627 ### operating system is; if you know what operating systems a machine
628 ### runs, it's cleaner to make it explicit in the case statement
630 if test x"${opsys}" = x; then
631 case "${canonical}" in
632 *-gnu* ) opsys=gnu ;;
642 if test $unported = yes; then
643 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
644 Check `etc/MACHINES' for recognized configuration names.])
648 #### Choose a compiler.
650 dnl Sets GCC=yes if using gcc.
654 if test x$GCC = xyes; then
655 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
657 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
660 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
661 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
662 dnl that clash with MinGW.
663 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
665 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
666 # as we don't use them.
667 AC_DEFUN([gl_FCNTL_O_FLAGS])
668 # Avoid gnulib's threadlib module, as we do threads our own way.
669 AC_DEFUN([gl_THREADLIB])
671 # Initialize gnulib right after choosing the compiler.
672 dnl Amongst other things, this sets AR and ARFLAGS.
675 if test "$ac_test_CFLAGS" != set; then
676 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
677 # if -g3 works and the user does not specify CFLAGS.
678 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
681 emacs_g3_CFLAGS='-g3';;
683 emacs_g3_CFLAGS='-g3 -O2';;
687 if test -n "$emacs_g3_CFLAGS"; then
688 emacs_save_CFLAGS=$CFLAGS
689 CFLAGS=$emacs_g3_CFLAGS
690 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
691 [emacs_cv_prog_cc_g3],
692 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
693 [emacs_cv_prog_cc_g3=yes],
694 [emacs_cv_prog_cc_g3=no])])
695 if test $emacs_cv_prog_cc_g3 != yes; then
696 CFLAGS=$emacs_save_CFLAGS
698 if test $opsys = mingw32; then
699 CFLAGS="$CFLAGS -gdwarf-2"
706 # No optimization flag was inferred for this non-GCC compiler.
707 # Try -O. This is needed for xlc on AIX; see Bug#14258.
708 emacs_save_CFLAGS=$CFLAGS
709 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
711 AC_CACHE_CHECK([whether $CC accepts -O],
712 [emacs_cv_prog_cc_o],
713 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
714 [emacs_cv_prog_cc_o=yes],
715 [emacs_cv_prog_cc_o=no])])
716 if test $emacs_cv_prog_cc_o != yes; then
717 CFLAGS=$emacs_save_CFLAGS
722 AC_ARG_ENABLE([gcc-warnings],
723 [AS_HELP_STRING([--enable-gcc-warnings],
724 [turn on lots of GCC warnings/errors. This is intended for
725 developers, and may generate false alarms when used
726 with older or non-GNU development tools.])],
729 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
731 gl_gcc_warnings=$enableval],
735 AC_ARG_ENABLE(link-time-optimization,
736 [AS_HELP_STRING([--enable-link-time-optimization],
737 [build emacs with link-time optimization.
738 This is supported only for GCC since 4.5.0.])],
739 if test "${enableval}" != "no"; then
740 AC_MSG_CHECKING([whether link-time optimization is supported])
742 if test x$GCC = xyes; then
743 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
744 if test x$CPUS != x; then
750 CFLAGS="$CFLAGS $LTO"
751 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
752 [ac_lto_supported=yes], [ac_lto_supported=no])
755 AC_MSG_RESULT([$ac_lto_supported])
756 if test "$ac_lto_supported" = "yes"; then
757 CFLAGS="$CFLAGS $LTO"
761 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
762 # ------------------------------------------------
763 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
764 # Otherwise, run RUN-IF-NOT-FOUND.
765 AC_DEFUN([gl_GCC_VERSION_IFELSE],
769 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
772 # error "your version of gcc is older than $1.$2"
779 # When compiling with GCC, prefer -isystem to -I when including system
780 # include files, to avoid generating useless diagnostics for the files.
781 if test "$gl_gcc_warnings" != yes; then
786 # This, $nw, is the list of warnings we disable.
789 case $with_x_toolkit in
790 lucid | athena | motif)
791 # Old toolkits mishandle 'const'.
792 nw="$nw -Wwrite-strings"
795 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
798 AC_SUBST([WERROR_CFLAGS])
800 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
801 nw="$nw -Woverlength-strings" # Not a problem these days
802 nw="$nw -Wlogical-op" # any use of fwrite provokes this
803 nw="$nw -Wformat-nonliteral" # we do this a lot
804 nw="$nw -Wvla" # warnings in gettext.h
805 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
806 nw="$nw -Wswitch-default" # Too many warnings for now
807 nw="$nw -Winline" # OK to ignore 'inline'
808 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
809 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
810 # signed overflow has undefined behavior
811 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
812 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
813 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
815 # Emacs doesn't care about shadowing; see
816 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
819 # Emacs's use of alloca inhibits protecting the stack.
820 nw="$nw -Wstack-protector"
822 # The following line should be removable at some point.
823 nw="$nw -Wsuggest-attribute=pure"
825 # This part is merely for shortening the command line,
826 # since -Wno-FOO needs to be added below regardless.
827 nw="$nw -Wmissing-field-initializers"
829 nw="$nw -Wtype-limits"
830 nw="$nw -Wunused-parameter"
832 # clang is unduly picky about some things.
833 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
840 [emacs_cv_clang=yes],
841 [emacs_cv_clang=no])])
842 if test $emacs_cv_clang = yes; then
843 nw="$nw -Wcast-align"
846 gl_MANYWARN_ALL_GCC([ws])
847 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
851 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
852 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
853 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
854 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
855 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
856 gl_WARN_ADD([-Wno-format-nonliteral])
858 # In spite of excluding -Wlogical-op above, it is enabled, as of
859 # gcc 4.5.0 20090517.
860 gl_WARN_ADD([-Wno-logical-op])
862 # More things that clang is unduly picky about.
863 if test $emacs_cv_clang = yes; then
864 gl_WARN_ADD([-Wno-format-extra-args])
865 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
866 gl_WARN_ADD([-Wno-unused-command-line-argument])
867 gl_WARN_ADD([-Wno-unused-value])
870 gl_WARN_ADD([-fdiagnostics-show-option])
871 gl_WARN_ADD([-funit-at-a-time])
873 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
874 AH_VERBATIM([FORTIFY_SOURCE],
875 [/* Enable compile-time and run-time bounds-checking, and some warnings,
876 without upsetting glibc 2.15+. */
877 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
878 # define _FORTIFY_SOURCE 2
881 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
883 # We use a slightly smaller set of warning options for lib/.
884 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
886 nw="$nw -Wunused-macros"
888 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
889 AC_SUBST([GNULIB_WARN_CFLAGS])
894 dnl Some other nice autoconf tests.
895 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
898 dnl if test "x$RANLIB" = x; then
903 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
904 dnl can be made to directories. This is not relevant for our usage, and
905 dnl excludes some cases that work fine for us. Eg MS Windows or files
906 dnl hosted on AFS, both examples where simple links work, but links to
907 dnl directories fail. We use a cut-down version instead.
910 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
911 rm -f conf$$ conf$$.file
913 LN_S_FILEONLY='cp -p'
915 if (echo >conf$$.file) 2>/dev/null; then
916 if ln -s conf$$.file conf$$ 2>/dev/null; then
917 LN_S_FILEONLY='ln -s'
918 elif ln conf$$.file conf$$ 2>/dev/null; then
923 rm -f conf$$ conf$$.file
925 if test "$LN_S_FILEONLY" = "ln -s"; then
928 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
931 AC_SUBST(LN_S_FILEONLY)
934 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
935 dnl doesn't support links to directories, as in "ln file dir". But that
936 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
937 dnl executables at "make install" time.
938 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
939 dnl for more details.
940 if test "$opsys" = "mingw32"; then
944 AC_PATH_PROG(INSTALL_INFO, install-info, :,
945 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
946 dnl Don't use GZIP, which is used by gzip for additional parameters.
947 AC_PATH_PROG(GZIP_PROG, gzip)
949 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
950 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
952 if test $opsys = gnu-linux; then
953 AC_PATH_PROG(PAXCTL, paxctl,,
954 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
955 if test "X$PAXCTL" != X; then
956 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
957 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
958 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
959 else AC_MSG_RESULT(no); PAXCTL=""; fi])
963 ## Need makeinfo >= 4.7 (?) to build the manuals.
964 AC_PATH_PROG(MAKEINFO, makeinfo, no)
965 dnl By this stage, configure has already checked for egrep and set EGREP,
966 dnl or exited with an error if no egrep was found.
967 if test "$MAKEINFO" != "no"; then
969 $MAKEINFO --version 2> /dev/null |
970 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
976 ## Makeinfo is unusual. For a released Emacs, the manuals are
977 ## pre-built, and not deleted by the normal clean rules. makeinfo is
978 ## therefore in the category of "special tools" not normally required, which
979 ## configure does not have to check for (eg autoconf itself).
980 ## In a Bazaar checkout on the other hand, the manuals are not included.
981 ## So makeinfo is a requirement to build from Bazaar, and configure
982 ## should test for it as it does for any other build requirement.
983 ## We use the presence of $srcdir/info/emacs to distinguish a release,
984 ## with pre-built manuals, from a Bazaar checkout.
987 if test "$MAKEINFO" = "no"; then
989 if test "x${with_makeinfo}" = "xno"; then
991 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
992 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
993 source tree does not seem to have pre-built manuals in the `info' directory.
994 Either install a suitable version of makeinfo, or re-run configure
995 with the `--without-makeinfo' option to build without the manuals.] )
998 AC_SUBST(HAVE_MAKEINFO)
1000 dnl Just so that there is only a single place we need to edit.
1002 INFO_OPTS=--no-split
1006 if test $opsys = mingw32; then
1007 DOCMISC_W32=efaq-w32
1011 AC_SUBST(DOCMISC_W32)
1013 dnl Add our options to ac_link now, after it is set up.
1015 if test x$GCC = xyes; then
1016 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1017 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1019 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1020 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1023 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1024 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1025 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1026 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1027 dnl if not built to support GNU ld.
1029 late_LDFLAGS=$LDFLAGS
1030 if test x$GCC = xyes; then
1031 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
1033 LDFLAGS="$LDFLAGS -znocombreloc"
1036 AC_MSG_CHECKING([for -znocombreloc])
1037 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1038 [AC_MSG_RESULT(yes)],
1039 LDFLAGS=$late_LDFLAGS
1040 [AC_MSG_RESULT(no)])
1043 dnl The function dump-emacs will not be defined and temacs will do
1044 dnl (load "loadup") automatically unless told otherwise.
1045 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1047 your-opsys-here) CANNOT_DUMP=yes ;;
1050 test "$CANNOT_DUMP" = "yes" && \
1051 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1053 AC_SUBST(CANNOT_DUMP)
1056 UNEXEC_OBJ=unexelf.o
1058 # MSDOS uses unexcoff.o
1060 UNEXEC_OBJ=unexaix.o
1066 UNEXEC_OBJ=unexmacosx.o
1069 UNEXEC_OBJ=unexhp9k800.o
1072 UNEXEC_OBJ=unexw32.o
1075 # Use the Solaris dldump() function, called from unexsol.c, to dump
1076 # emacs, instead of the generic ELF dump code found in unexelf.c.
1077 # The resulting binary has a complete symbol table, and is better
1078 # for debugging and other observability tools (debuggers, pstack, etc).
1080 # If you encounter a problem using dldump(), please consider sending
1081 # a message to the OpenSolaris tools-linking mailing list:
1082 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1084 # It is likely that dldump() works with older Solaris too, but this has
1085 # not been tested, so for now this change is for Solaris 10 or newer.
1086 UNEXEC_OBJ=unexsol.o
1093 ## Let `ld' find image libs and similar things in /usr/local/lib.
1094 ## The system compiler, GCC, has apparently been modified to not
1095 ## look there, contrary to what a stock GCC would do.
1096 ### It's not our place to do this. See bug#10313#17.
1097 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1102 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1103 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1107 ### It's not our place to do this. See bug#10313#17.
1108 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1113 ## Han Boetes <han@boetes.org> says this is necessary,
1114 ## otherwise Emacs dumps core on elf systems.
1115 LD_SWITCH_SYSTEM="-Z"
1118 AC_SUBST(LD_SWITCH_SYSTEM)
1120 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1122 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1123 ## which has not been defined yet. When this was handled with cpp,
1124 ## it was expanded to null when configure sourced the s/*.h file.
1125 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1126 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1127 ## (or somesuch), but because it is supposed to go at the _front_
1128 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1129 ## Compare with the gnu-linux case below, which added to the end
1130 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1131 ## LD_SWITCH_SYSTEM_TEMACS.
1134 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1141 AC_CHECK_DECL([__ELF__])
1142 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1143 ## With ELF, make sure that all common symbols get allocated to in the
1144 ## data section. Otherwise, the dump of temacs may miss variables in
1145 ## the shared library that have been initialized. For example, with
1146 ## GNU libc, __malloc_initialized would normally be resolved to the
1147 ## shared library's .bss section, which is fatal.
1148 if test "x$GCC" = "xyes"; then
1149 C_SWITCH_MACHINE="-fno-common"
1151 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1154 UNEXEC_OBJ=unexalpha.o
1158 AC_SUBST(C_SWITCH_MACHINE)
1160 AC_SUBST(UNEXEC_OBJ)
1163 ## Some programs in src produce warnings saying certain subprograms
1164 ## are too complex and need a MAXMEM value greater than 2000 for
1165 ## additional optimization. --nils@exp-math.uni-essen.de
1166 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1167 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1168 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1169 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1170 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1171 AC_SUBST(C_SWITCH_SYSTEM)
1176 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1177 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1179 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1181 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1183 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1185 ## Motif needs -lgen.
1186 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1189 AC_SUBST(LIBS_SYSTEM)
1191 ### Make sure subsequent tests use flags consistent with the build flags.
1193 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1194 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1196 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1199 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1200 AC_DEFUN([AC_TYPE_SIZE_T])
1201 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1202 AC_DEFUN([AC_TYPE_UID_T])
1206 dnl Current possibilities handled by sed (aix4-2 -> aix,
1207 dnl gnu-linux -> gnu/linux, etc.):
1208 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1209 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1210 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1217 ## Adding -lm confuses the dynamic linker, so omit it.
1220 freebsd | dragonfly )
1221 SYSTEM_TYPE=berkeley-unix
1223 gnu-linux | gnu-kfreebsd )
1225 hpux10-20 | hpux11 )
1229 SYSTEM_TYPE=windows-nt
1231 dnl NB this may be adjusted below.
1233 SYSTEM_TYPE=berkeley-unix
1237 SYSTEM_TYPE=usg-unix-v
1243 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1244 [The type of system you are compiling for; sets `system-type'.])
1247 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1248 pre_PKG_CONFIG_LIBS=$LIBS
1250 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1252 dnl This function definition taken from Gnome 2.0
1253 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1254 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1255 dnl also defines GSTUFF_PKG_ERRORS on error
1256 AC_DEFUN([PKG_CHECK_MODULES], [
1259 if test "$PKG_CONFIG" = "no" ; then
1260 ifelse([$4], , [AC_MSG_ERROR([
1261 *** 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])
1263 PKG_CONFIG_MIN_VERSION=0.9.0
1264 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1265 AC_MSG_CHECKING(for $2)
1267 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1268 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1269 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1276 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1277 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1278 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1284 ## If we have a custom action on failure, don't print errors, but
1285 ## do set a variable so people can do so. Do it in a subshell
1286 ## to capture any diagnostics in invoking pkg-config.
1287 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1288 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1294 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1295 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1299 if test $succeeded = yes; then
1300 ifelse([$3], , :, [$3])
1302 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.])], [$4])
1307 if test "${with_sound}" != "no"; then
1308 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1309 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1310 have_sound_header=yes, [], [
1312 #define WIN32_LEAN_AND_MEAN
1313 #include <windows.h>
1316 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1317 AC_MSG_ERROR([OSS sound support requested but not found.])
1319 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1320 # Emulation library used on NetBSD.
1321 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1322 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1323 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1324 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1325 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1329 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1331 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1332 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1333 if test $HAVE_ALSA = yes; then
1334 SAVE_CFLAGS="$CFLAGS"
1336 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1337 LIBS="$ALSA_LIBS $LIBS"
1338 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1339 emacs_alsa_normal=yes,
1340 emacs_alsa_normal=no)
1341 if test "$emacs_alsa_normal" != yes; then
1342 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1343 [[snd_lib_error_set_handler (0);]])],
1344 emacs_alsa_subdir=yes,
1345 emacs_alsa_subdir=no)
1346 if test "$emacs_alsa_subdir" != yes; then
1347 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1349 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1352 CFLAGS="$SAVE_CFLAGS"
1354 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1355 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1356 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1357 elif test "${with_sound}" = "alsa"; then
1358 AC_MSG_ERROR([ALSA sound support requested but not found.])
1360 fi dnl with_sound = alsa|yes
1362 dnl Define HAVE_SOUND if we have sound support. We know it works and
1363 dnl compiles only on the specified platforms. For others, it
1364 dnl probably doesn't make sense to try.
1365 dnl FIXME So surely we should bypass this whole section if not using
1366 dnl one of these platforms?
1367 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1369 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1370 dnl Adjust the --with-sound help text if you change this.
1371 gnu-linux|freebsd|netbsd|mingw32)
1372 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1378 AC_SUBST(CFLAGS_SOUND)
1381 dnl checks for header files
1382 AC_CHECK_HEADERS_ONCE(
1386 sys/utsname.h pwd.h utmp.h util.h)
1388 AC_MSG_CHECKING(if personality LINUX32 can be set)
1389 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1390 emacs_cv_personality_linux32=yes,
1391 emacs_cv_personality_linux32=no)
1392 AC_MSG_RESULT($emacs_cv_personality_linux32)
1394 if test $emacs_cv_personality_linux32 = yes; then
1395 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1396 [Define to 1 if personality LINUX32 can be set.])
1399 dnl On Solaris 8 there's a compilation warning for term.h because
1400 dnl it doesn't define `bool'.
1401 AC_CHECK_HEADERS(term.h, , , -)
1403 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1405 if test $ac_cv_have_decl_sys_siglist != yes; then
1406 # For Tru64, at least:
1407 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1412 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1413 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1414 #if HAVE_SYS_SOCKET_H
1415 #include <sys/socket.h>
1417 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1418 #if HAVE_SYS_SOCKET_H
1419 #include <sys/socket.h>
1421 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1422 #if HAVE_SYS_SOCKET_H
1423 #include <sys/socket.h>
1426 dnl checks for structure members
1427 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1428 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1429 struct ifreq.ifr_addr,
1430 struct ifreq.ifr_addr.sa_len], , ,
1431 [AC_INCLUDES_DEFAULT
1432 #if HAVE_SYS_SOCKET_H
1433 #include <sys/socket.h>
1439 dnl Check for endianness.
1440 dnl AC_C_BIGENDIAN is done by gnulib.
1442 dnl check for Make feature
1443 dnl AC_PROG_MAKE_SET is done by Automake.
1448 dnl check for GNU Make if we have GCC and autodepend is on.
1449 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1450 AC_MSG_CHECKING([whether we are using GNU Make])
1452 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1453 if test "x$testval" != x; then
1456 ac_enable_autodepend=no
1458 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1459 if test $HAVE_GNU_MAKE = yes; then
1460 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1461 SAVE_CFLAGS="$CFLAGS"
1462 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1463 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1464 CFLAGS="$SAVE_CFLAGS"
1465 test -f deps.d || ac_enable_autodepend=no
1467 AC_MSG_RESULT([$ac_enable_autodepend])
1469 if test $ac_enable_autodepend = yes; then
1470 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1471 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1472 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1473 deps_frag=autodeps.mk
1476 deps_frag=$srcdir/src/$deps_frag
1479 AC_SUBST_FILE(deps_frag)
1482 lisp_frag=$srcdir/src/lisp.mk
1483 AC_SUBST_FILE(lisp_frag)
1486 dnl checks for operating system services
1487 AC_SYS_LONG_FILE_NAMES
1489 #### Choose a window system.
1491 ## We leave window_system equal to none if
1492 ## we end up building without one. Any new window system should
1493 ## set window_system to an appropriate value and add objects to
1494 ## window-system-specific substs.
1498 if test "$no_x" != yes; then
1502 LD_SWITCH_X_SITE_RPATH=
1503 if test "${x_libraries}" != NONE; then
1504 if test -n "${x_libraries}"; then
1505 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1506 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1508 x_default_search_path=""
1509 x_search_path=${x_libraries}
1510 if test -z "${x_search_path}"; then
1511 x_search_path=/usr/lib
1513 for x_library in `echo ${x_search_path}: | \
1514 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1516 ${x_library}/X11/%L/%T/%N%C%S:\
1517 ${x_library}/X11/%l/%T/%N%C%S:\
1518 ${x_library}/X11/%T/%N%C%S:\
1519 ${x_library}/X11/%L/%T/%N%S:\
1520 ${x_library}/X11/%l/%T/%N%S:\
1521 ${x_library}/X11/%T/%N%S"
1522 if test x"${x_default_search_path}" = x; then
1523 x_default_search_path=${x_search_path}
1525 x_default_search_path="${x_search_path}:${x_default_search_path}"
1529 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1531 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1532 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1535 if test x"${x_includes}" = x; then
1536 bitmapdir=/usr/include/X11/bitmaps
1538 # accumulate include directories that have X11 bitmap subdirectories
1540 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1541 if test -d "${bmd}/X11/bitmaps"; then
1542 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1544 if test -d "${bmd}/bitmaps"; then
1545 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1548 if test ${bmd_acc} != "dummyval"; then
1549 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1556 tmp_CPPFLAGS="$CPPFLAGS"
1557 tmp_CFLAGS="$CFLAGS"
1558 CPPFLAGS="$CPPFLAGS -x objective-c"
1559 CFLAGS="$CFLAGS -x objective-c"
1562 if test "${with_ns}" != no; then
1563 if test "${opsys}" = darwin; then
1565 ns_appdir=`pwd`/nextstep/Emacs.app
1566 ns_appbindir=${ns_appdir}/Contents/MacOS
1567 ns_appresdir=${ns_appdir}/Contents/Resources
1568 ns_appsrc=Cocoa/Emacs.base
1569 elif test -f $GNUSTEP_CONFIG_FILE; then
1571 ns_appdir=`pwd`/nextstep/Emacs.app
1572 ns_appbindir=${ns_appdir}
1573 ns_appresdir=${ns_appdir}/Resources
1574 ns_appsrc=GNUstep/Emacs.base
1575 dnl FIXME sourcing this several times in subshells seems inefficient.
1576 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1577 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1578 dnl I seemed to need these as well with GNUstep-startup 0.25.
1579 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1580 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1581 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1582 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1583 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1584 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1585 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1586 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1587 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1588 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1589 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1590 dnl If they had chosen to either define it or not, we could have
1591 dnl just used AC_CHECK_DECL here.
1592 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1593 emacs_cv_objc_exceptions,
1594 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1595 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1599 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1600 if test $emacs_cv_objc_exceptions = yes; then
1601 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1602 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1603 [Define if GNUstep uses ObjC exceptions.])
1604 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1608 dnl This is only used while we test the NS headers, it gets reset below.
1609 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1611 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1612 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1613 files are missing or cannot be compiled.])])
1615 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1617 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1618 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1621 #error "OSX 10.4 or newer required"
1625 ns_osx_have_104=yes,
1627 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1629 ns_have_nsinteger=yes,
1630 ns_have_nsinteger=no)
1631 if test $ns_osx_have_104 = no; then
1632 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1634 if test $ns_have_nsinteger = yes; then
1635 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1639 AC_SUBST(LIBS_GNUSTEP)
1641 INSTALL_ARCH_INDEP_EXTRA=install-etc
1642 ns_self_contained=no
1645 if test "${HAVE_NS}" = yes; then
1646 if test "$with_toolkit_scroll_bars" = "no"; then
1647 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1650 window_system=nextstep
1651 # set up packaging dirs
1652 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1653 ns_self_contained=yes
1654 prefix=${ns_appresdir}
1655 exec_prefix=${ns_appbindir}
1656 dnl This one isn't really used, only archlibdir is.
1657 libexecdir="\${ns_appbindir}/libexec"
1658 archlibdir="\${ns_appbindir}/libexec"
1659 etcdocdir="\${ns_appresdir}/etc"
1660 etcdir="\${ns_appresdir}/etc"
1661 dnl FIXME maybe set datarootdir instead.
1662 dnl That would also get applications, icons, man.
1663 infodir="\${ns_appresdir}/info"
1664 mandir="\${ns_appresdir}/man"
1665 lispdir="\${ns_appresdir}/lisp"
1666 leimdir="\${ns_appresdir}/leim"
1667 INSTALL_ARCH_INDEP_EXTRA=
1669 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1671 CFLAGS="$tmp_CFLAGS"
1672 CPPFLAGS="$tmp_CPPFLAGS"
1673 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1674 AC_SUBST(ns_self_contained)
1676 AC_SUBST(NS_OBJC_OBJ)
1687 if test "${with_w32}" != no; then
1690 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1691 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1692 cannot be found.])])
1695 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1698 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1703 if test "${opsys}" = "mingw32"; then
1704 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1705 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1706 #include <windows.h>
1707 #include <usp10.h>]],
1708 [[PIMAGE_NT_HEADERS pHeader;
1709 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1710 [emacs_cv_w32api=yes
1713 AC_MSG_RESULT($emacs_cv_w32api)
1714 if test "${emacs_cv_w32api}" = "no"; then
1715 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1726 if test "${HAVE_W32}" = "yes"; then
1727 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1728 AC_CHECK_TOOL(WINDRES, [windres],
1729 [AC_MSG_ERROR([No resource compiler found.])])
1730 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1731 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1732 EMACSRES="emacs.res"
1733 case "$canonical" in
1734 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1735 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1737 UPDATE_MANIFEST=update-game-score.exe.manifest
1738 if test "${opsys}" = "cygwin"; then
1739 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1740 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1741 # Tell the linker that emacs.res is an object (which we compile from
1742 # the rc file), not a linker script.
1743 W32_RES_LINK="-Wl,emacs.res"
1745 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1746 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1747 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1748 W32_RES_LINK="\$(EMACSRES)"
1749 CLIENTRES="emacsclient.res"
1750 CLIENTW="emacsclientw\$(EXEEXT)"
1751 FIRSTFILE_OBJ=firstfile.o
1754 LIBS_ECLIENT="-lcomctl32"
1755 LIB_WSOCK32="-lwsock32"
1756 NTLIB="ntlib.$ac_objext"
1757 XARGS_LIMIT="-s 10000"
1763 AC_SUBST(EMACS_MANIFEST)
1764 AC_SUBST(UPDATE_MANIFEST)
1767 AC_SUBST(W32_RES_LINK)
1768 AC_SUBST(FIRSTFILE_OBJ)
1771 AC_SUBST(LIBS_ECLIENT)
1772 AC_SUBST(LIB_WSOCK32)
1774 AC_SUBST(XARGS_LIMIT)
1776 if test "${HAVE_W32}" = "yes"; then
1781 ## $window_system is now set to the window system we will
1784 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1785 # Too many warnings for now.
1787 nw="$nw -Wsuggest-attribute=const"
1788 nw="$nw -Wsuggest-attribute=noreturn"
1789 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1791 gl_WARN_ADD([-Wno-unused-variable])
1792 gl_WARN_ADD([-Wno-unused-but-set-variable])
1793 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1801 case "${window_system}" in
1806 case "${with_x_toolkit}" in
1807 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1808 motif ) USE_X_TOOLKIT=MOTIF ;;
1810 term_header=gtkutil.h
1811 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1812 dnl USE_X_TOOLKIT is set.
1813 USE_X_TOOLKIT=none ;;
1814 gtk2 ) with_gtk2=yes
1815 term_header=gtkutil.h
1816 USE_X_TOOLKIT=none ;;
1817 gtk3 ) with_gtk3=yes
1818 term_header=gtkutil.h
1819 USE_X_TOOLKIT=none ;;
1820 no ) USE_X_TOOLKIT=none ;;
1821 dnl If user did not say whether to use a toolkit, make this decision later:
1822 dnl use the toolkit if we have gtk, or X11R5 or newer.
1823 * ) USE_X_TOOLKIT=maybe ;;
1827 term_header=nsterm.h
1830 term_header=w32term.h
1834 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1835 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1836 if test "$HAVE_XSERVER" = true ||
1837 test -n "$DISPLAY" ||
1838 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1839 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1840 were found. You should install the relevant development files for X
1841 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1842 sure you have development files for image handling, i.e.
1843 tiff, gif, jpeg, png and xpm.
1844 If you are sure you want Emacs compiled without X window support, pass
1850 ### If we're using X11, we should use the X menu package.
1853 yes ) HAVE_MENUS=yes ;;
1856 # Does the opsystem file prohibit the use of the GNU malloc?
1857 # Assume not, until told otherwise.
1861 [whether malloc is Doug Lea style],
1862 [emacs_cv_var_doug_lea_malloc],
1865 [[#include <malloc.h>
1866 static void hook (void) {}]],
1867 [[malloc_set_state (malloc_get_state ());
1868 __after_morecore_hook = hook;
1869 __malloc_initialize_hook = hook;]])],
1870 [emacs_cv_var_doug_lea_malloc=yes],
1871 [emacs_cv_var_doug_lea_malloc=no])])
1872 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1875 dnl See comments in aix4-2.h about maybe using system malloc there.
1878 ## darwin ld insists on the use of malloc routines in the System framework.
1879 darwin|sol2-10) system_malloc=yes ;;
1882 if test "${system_malloc}" = "yes"; then
1883 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1886 (The GNU allocators don't work with this system configuration.)"
1890 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1891 VMLIMIT_OBJ=vm-limit.o
1893 AC_CHECK_HEADERS([sys/vlimit.h])
1894 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1897 [[extern char data_start[]; char ch;]],
1898 [[return data_start < &ch;]])],
1899 [emacs_cv_data_start=yes],
1900 [emacs_cv_data_start=no])])
1901 if test $emacs_cv_data_start = yes; then
1902 AC_DEFINE([HAVE_DATA_START], 1,
1903 [Define to 1 if data_start is the address of the start
1904 of the main data segment.])
1907 AC_SUBST(GMALLOC_OBJ)
1908 AC_SUBST(VMLIMIT_OBJ)
1910 if test "$doug_lea_malloc" = "yes" ; then
1911 if test "$GNU_MALLOC" = yes ; then
1913 (Using Doug Lea's new malloc from the GNU C Library.)"
1915 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1916 [Define to 1 if you are using the GNU C Library.])
1918 ## Use mmap directly for allocating larger buffers.
1919 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1920 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1921 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1923 gnu*) REL_ALLOC=no ;;
1927 if test x"${REL_ALLOC}" = x; then
1928 REL_ALLOC=${GNU_MALLOC}
1931 use_mmap_for_buffers=no
1933 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1937 if test $use_mmap_for_buffers = yes; then
1938 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1942 LIBS="$LIBS_SYSTEM $LIBS"
1944 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1945 AC_CHECK_LIB(dnet, dnet_ntoa)
1946 dnl This causes -lresolv to get used in subsequent tests,
1947 dnl which causes failures on some systems such as HPUX 9.
1948 dnl AC_CHECK_LIB(resolv, gethostbyname)
1950 dnl FIXME replace main with a function we actually want from this library.
1951 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1953 dnl Check if pthreads is available.
1955 AC_CHECK_HEADERS_ONCE(pthread.h)
1956 if test "$ac_cv_header_pthread_h"; then
1957 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1958 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1959 dnl testing for pthread_self if Emacs uses gmalloc.c.
1960 if test "$GMALLOC_OBJ" = gmalloc.o; then
1961 emacs_pthread_function=pthread_atfork
1963 emacs_pthread_function=pthread_self
1965 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1967 if test "$HAVE_PTHREAD" = yes; then
1968 case "${canonical}" in
1970 *) LIB_PTHREAD="-lpthread"
1971 LIBS="$LIB_PTHREAD $LIBS" ;;
1973 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1975 AC_SUBST([LIB_PTHREAD])
1977 AC_CHECK_LIB(pthreads, cma_open)
1979 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1980 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1981 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1982 ## added to LIBS in configure would never contain the pthreads part,
1983 ## but the value used in Makefiles might. FIXME?
1985 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1986 ## be harmless on older versions of X where it happens to exist.
1987 test "$opsys" = "aix4-2" && \
1988 test $ac_cv_lib_pthreads_cma_open = yes && \
1989 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1991 dnl Check for need for bigtoc support on IBM AIX
1995 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1997 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1998 *) gdb_cv_bigtoc=-bbigtoc ;;
2001 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2002 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2007 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2008 # used for the tests that follow. We set them back to REAL_CFLAGS and
2009 # REAL_CPPFLAGS later on.
2011 REAL_CFLAGS="$CFLAGS"
2012 REAL_CPPFLAGS="$CPPFLAGS"
2014 if test "${HAVE_X11}" = "yes"; then
2015 DEFS="$C_SWITCH_X_SITE $DEFS"
2016 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2018 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2019 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2021 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2022 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2023 # but it's more convenient here to set LD_RUN_PATH since this
2024 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2025 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2026 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2030 if test "${opsys}" = "gnu-linux"; then
2031 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2032 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2033 [[XOpenDisplay ("foo");]])],
2034 [xgnu_linux_first_failure=no],
2035 [xgnu_linux_first_failure=yes])
2036 if test "${xgnu_linux_first_failure}" = "yes"; then
2037 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2038 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2039 OLD_CPPFLAGS="$CPPFLAGS"
2041 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2042 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2043 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2044 LIBS="$LIBS -b i486-linuxaout"
2045 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2046 [[XOpenDisplay ("foo");]])],
2047 [xgnu_linux_second_failure=no],
2048 [xgnu_linux_second_failure=yes])
2049 if test "${xgnu_linux_second_failure}" = "yes"; then
2050 # If we get the same failure with -b, there is no use adding -b.
2051 # So take it out. This plays safe.
2052 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2053 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2054 CPPFLAGS="$OLD_CPPFLAGS"
2065 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2066 # header files included from there.
2067 AC_MSG_CHECKING(for Xkb)
2068 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2069 #include <X11/XKBlib.h>]],
2070 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2071 emacs_xkb=yes, emacs_xkb=no)
2072 AC_MSG_RESULT($emacs_xkb)
2073 if test $emacs_xkb = yes; then
2074 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2077 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2078 XScreenNumberOfScreen)
2081 if test "${window_system}" = "x11"; then
2082 AC_MSG_CHECKING(X11 version 6)
2083 AC_CACHE_VAL(emacs_cv_x11_version_6,
2084 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2085 [[#if XlibSpecificationRelease < 6
2088 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2089 if test $emacs_cv_x11_version_6 = yes; then
2090 AC_MSG_RESULT(6 or newer)
2091 AC_DEFINE(HAVE_X11R6, 1,
2092 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2093 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2094 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2098 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2099 [Define if you have usable X11R6-style XIM support.])
2103 AC_MSG_RESULT(before 6)
2108 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2110 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2111 if test "${with_rsvg}" != "no"; then
2112 RSVG_REQUIRED=2.11.0
2113 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2115 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2116 AC_SUBST(RSVG_CFLAGS)
2119 if test $HAVE_RSVG = yes; then
2120 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2121 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2122 LIBS="$RSVG_LIBS $LIBS"
2128 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2129 if test "${with_imagemagick}" != "no"; then
2130 ## 6.2.8 is the earliest version known to work, but earlier versions
2131 ## might work - let us know if you find one.
2132 ## 6.0.7 does not work. See bug#7955.
2133 ## 6.8.2 makes Emacs crash; see Bug#13867.
2134 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2135 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2136 AC_SUBST(IMAGEMAGICK_CFLAGS)
2137 AC_SUBST(IMAGEMAGICK_LIBS)
2139 if test $HAVE_IMAGEMAGICK = yes; then
2140 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2141 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2142 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2143 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2151 gtk_term_header=$term_header
2154 if test "${opsys}" != "mingw32"; then
2155 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2158 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2160 dnl Checks for libraries.
2161 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2162 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2163 AC_MSG_ERROR($GTK_PKG_ERRORS)
2165 if test "$pkg_check_gtk" = "yes"; then
2166 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2167 GTK_OBJ=emacsgtkfixed.o
2168 gtk_term_header=gtkutil.h
2169 USE_GTK_TOOLKIT="GTK3"
2170 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2171 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2172 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2176 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2180 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2183 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2185 dnl Checks for libraries.
2186 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2187 if test "$pkg_check_gtk" = "no" &&
2188 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2190 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2192 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2196 if test x"$pkg_check_gtk" = xyes; then
2198 AC_SUBST(GTK_CFLAGS)
2200 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2201 CFLAGS="$CFLAGS $GTK_CFLAGS"
2202 LIBS="$GTK_LIBS $LIBS"
2203 dnl Try to compile a simple GTK program.
2204 AC_MSG_CHECKING([whether GTK compiles])
2208 [[/* Check the Gtk and Glib APIs. */
2209 #include <gtk/gtk.h>
2210 #include <glib-object.h>
2212 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2216 GtkSettings *gs = 0;
2217 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2218 strict C prohibits this. Use gtk_main_iteration to test that the
2219 libraries are there. */
2220 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2221 0, 0, 0, G_CALLBACK (callback), 0))
2222 gtk_main_iteration ();
2225 AC_MSG_RESULT([$GTK_COMPILES])
2226 if test "${GTK_COMPILES}" != "yes"; then
2228 if test "$USE_X_TOOLKIT" != "maybe"; then
2229 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2233 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2234 GTK_OBJ="gtkutil.o $GTK_OBJ"
2235 term_header=$gtk_term_header
2237 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2240 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2241 closing open displays. This is no problem if you just use
2242 one display, but if you use more than one and close one of them
2252 if test "${HAVE_GTK}" = "yes"; then
2254 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2255 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2256 if test "$with_toolkit_scroll_bars" != no; then
2257 with_toolkit_scroll_bars=yes
2260 dnl Check if we have the old file selection dialog declared and
2261 dnl in the link library. In 2.x it may be in the library,
2262 dnl but not declared if deprecated featured has been selected out.
2263 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2264 HAVE_GTK_FILE_SELECTION=no
2265 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2266 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2267 #include <gtk/gtk.h>])
2268 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2269 AC_CHECK_FUNCS(gtk_file_selection_new)
2272 dnl Same as above for gtk_handle_box.
2273 HAVE_GTK_HANDLE_BOX=no
2274 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2275 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2276 #include <gtk/gtk.h>])
2277 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2278 AC_CHECK_FUNCS(gtk_handle_box_new)
2281 dnl Same as above for gtk_tearoff_menu_item.
2282 HAVE_GTK_TEAROFF_MENU_ITEM=no
2283 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2284 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2285 #include <gtk/gtk.h>])
2286 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2287 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2290 dnl Check for functions introduced in 2.14 and later.
2291 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2292 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2293 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2294 gtk_orientable_set_orientation \
2295 gtk_window_set_has_resize_grip)
2297 term_header=gtkutil.h
2300 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2301 dnl other platforms.
2304 if test "${with_dbus}" = "yes"; then
2305 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2306 if test "$HAVE_DBUS" = yes; then
2307 LIBS="$LIBS $DBUS_LIBS"
2308 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2309 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2310 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2312 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2313 dbus_type_is_valid \
2314 dbus_validate_bus_name \
2315 dbus_validate_path \
2316 dbus_validate_interface \
2317 dbus_validate_member)
2323 dnl GSettings has been tested under GNU/Linux only.
2325 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2326 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2327 if test "$HAVE_GSETTINGS" = "yes"; then
2328 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2329 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2330 SETTINGS_LIBS="$GSETTINGS_LIBS"
2334 dnl GConf has been tested under GNU/Linux only.
2335 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2337 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2338 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2339 if test "$HAVE_GCONF" = yes; then
2340 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2341 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2342 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2343 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2347 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2348 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2349 if test "$HAVE_GOBJECT" = "yes"; then
2350 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2351 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2353 SAVE_CFLAGS="$CFLAGS"
2355 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2356 LIBS="$SETTINGS_LIBS $LIBS"
2357 AC_CHECK_FUNCS([g_type_init])
2358 CFLAGS="$SAVE_CFLAGS"
2361 AC_SUBST(SETTINGS_CFLAGS)
2362 AC_SUBST(SETTINGS_LIBS)
2365 dnl SELinux is available for GNU/Linux only.
2368 if test "${with_selinux}" = "yes"; then
2369 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2370 if test "$HAVE_LIBSELINUX" = yes; then
2371 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2372 LIBSELINUX_LIBS=-lselinux
2375 AC_SUBST(LIBSELINUX_LIBS)
2378 if test "${with_gnutls}" = "yes" ; then
2379 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2380 if test "${HAVE_GNUTLS}" = "yes"; then
2381 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2384 # Windows loads GnuTLS dynamically
2385 if test "${opsys}" = "mingw32"; then
2388 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2389 LIBS="$LIBGNUTLS_LIBS $LIBS"
2393 AC_SUBST(LIBGNUTLS_LIBS)
2394 AC_SUBST(LIBGNUTLS_CFLAGS)
2399 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2400 dnl a particular library. This doesn't make much sense?
2401 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2402 with_file_notification=no
2405 dnl MS Windows native file monitor is available for mingw32 only.
2406 case $with_file_notification,$opsys in
2407 w32,* | yes,mingw32)
2408 AC_CHECK_HEADER(windows.h)
2409 if test "$ac_cv_header_windows_h" = yes ; then
2410 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2411 NOTIFY_OBJ=w32notify.o
2412 NOTIFY_SUMMARY="yes (w32)"
2416 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2417 dnl has been added in glib 2.24. It has been tested under
2418 dnl GNU/Linux only. We take precedence over inotify, but this makes
2419 dnl only sense when glib has been compiled with inotify support. How
2421 case $with_file_notification,$NOTIFY_OBJ in
2423 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2424 if test "$HAVE_GFILENOTIFY" = "yes"; then
2425 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2426 NOTIFY_OBJ=gfilenotify.o
2427 NOTIFY_SUMMARY="yes -lgio (gfile)"
2431 dnl inotify is only available on GNU/Linux.
2432 case $with_file_notification,$NOTIFY_OBJ in
2434 AC_CHECK_HEADER(sys/inotify.h)
2435 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2436 AC_CHECK_FUNC(inotify_init1)
2437 if test "$ac_cv_func_inotify_init1" = yes; then
2438 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2439 NOTIFY_OBJ=inotify.o
2440 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2445 case $with_file_notification,$NOTIFY_OBJ in
2446 yes,* | no,* | *,?*) ;;
2447 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2450 if test -n "$NOTIFY_OBJ"; then
2451 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2453 AC_SUBST(NOTIFY_OBJ)
2454 AC_SUBST(GFILENOTIFY_CFLAGS)
2455 AC_SUBST(GFILENOTIFY_LIBS)
2457 dnl Do not put whitespace before the #include statements below.
2458 dnl Older compilers (eg sunos4 cc) choke on it.
2461 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2462 if test "$with_xaw3d" != no; then
2463 AC_CACHE_VAL(emacs_cv_xaw3d,
2464 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2465 #include <X11/Intrinsic.h>
2466 #include <X11/Xaw3d/Simple.h>]],
2468 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2469 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2470 emacs_cv_xaw3d=no)])
2474 if test $emacs_cv_xaw3d = yes; then
2475 AC_MSG_CHECKING(for xaw3d)
2476 AC_MSG_RESULT([yes; using Lucid toolkit])
2480 AC_DEFINE(HAVE_XAW3D, 1,
2481 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2483 AC_MSG_CHECKING(for xaw3d)
2485 AC_MSG_CHECKING(for libXaw)
2486 AC_CACHE_VAL(emacs_cv_xaw,
2487 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2488 #include <X11/Intrinsic.h>
2489 #include <X11/Xaw/Simple.h>]],
2493 if test $emacs_cv_xaw = yes; then
2494 AC_MSG_RESULT([yes; using Lucid toolkit])
2497 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2498 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2500 AC_MSG_ERROR([No X toolkit could be found.
2501 If you are sure you want Emacs compiled without an X toolkit, pass
2503 to configure. Otherwise, install the development libraries for the toolkit
2504 that you want to use (e.g. Gtk+) and re-run configure.])
2509 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2512 if test "${USE_X_TOOLKIT}" != "none"; then
2513 AC_MSG_CHECKING(X11 toolkit version)
2514 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2515 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2516 [[#if XtSpecificationRelease < 6
2519 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2520 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2521 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2522 AC_MSG_RESULT(6 or newer)
2523 AC_DEFINE(HAVE_X11XTR6, 1,
2524 [Define to 1 if you have the X11R6 or newer version of Xt.])
2525 LIBXTR6="-lSM -lICE"
2527 ## Use libw.a along with X11R6 Xt.
2528 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2531 AC_MSG_RESULT(before 6)
2534 dnl If using toolkit, check whether libXmu.a exists.
2535 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2537 if test x$HAVE_X11XTR6 = xyes; then
2538 LIBS="-lXt -lSM -lICE $LIBS"
2542 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2543 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2544 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2548 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2549 dnl Why not just test for libxmu in the normal way?
2552 ## These systems don't supply Xmu.
2554 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2562 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2563 if test "${HAVE_X11}" = "yes"; then
2564 if test "${USE_X_TOOLKIT}" != "none"; then
2565 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2570 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2571 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2572 if test -d /usr/include/openmotif; then
2573 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2574 emacs_cv_openmotif=yes
2575 case "$canonical" in
2576 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2577 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2580 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2583 emacs_cv_openmotif=no
2585 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2586 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2587 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2590 Motif version prior to 2.1.
2592 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2593 if test $emacs_cv_motif_version_2_1 = yes; then
2594 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2595 if test x$emacs_cv_openmotif = xyes; then
2596 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2599 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2600 # We put this in CFLAGS temporarily to precede other -I options
2601 # that might be in CFLAGS temporarily.
2602 # We put this in CPPFLAGS where it precedes the other -I options.
2603 OLD_CPPFLAGS=$CPPFLAGS
2605 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2606 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2607 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2609 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2610 if test $emacs_cv_lesstif = yes; then
2611 # Make sure this -I option remains in CPPFLAGS after it is set
2612 # back to REAL_CPPFLAGS.
2613 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2614 # have those other -I options anyway. Ultimately, having this
2615 # directory ultimately in CPPFLAGS will be enough.
2616 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2617 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2620 CPPFLAGS=$OLD_CPPFLAGS
2623 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2624 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2627 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2628 dnl using Motif or Xaw3d is available, and unless
2629 dnl --with-toolkit-scroll-bars=no was specified.
2631 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2632 [Define to 1 if we should use toolkit scroll bars.])dnl
2633 USE_TOOLKIT_SCROLL_BARS=no
2634 if test "${with_toolkit_scroll_bars}" != "no"; then
2635 if test "${USE_X_TOOLKIT}" != "none"; then
2636 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2637 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2639 USE_TOOLKIT_SCROLL_BARS=yes
2640 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2641 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2642 USE_TOOLKIT_SCROLL_BARS=yes
2644 elif test "${HAVE_GTK}" = "yes"; then
2645 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2646 USE_TOOLKIT_SCROLL_BARS=yes
2647 elif test "${HAVE_NS}" = "yes"; then
2648 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2649 USE_TOOLKIT_SCROLL_BARS=yes
2650 elif test "${HAVE_W32}" = "yes"; then
2651 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2652 USE_TOOLKIT_SCROLL_BARS=yes
2656 dnl See if XIM is available.
2657 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2658 #include <X11/Xlib.h>
2659 #include <X11/Xresource.h>]],
2660 [[XIMProc callback;]])],
2662 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2665 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2667 if test "${with_xim}" != "no"; then
2668 AC_DEFINE(USE_XIM, 1,
2669 [Define to 1 if we should use XIM, if it is available.])
2673 if test "${HAVE_XIM}" != "no"; then
2675 if test "$GCC" = yes; then
2676 CFLAGS="$CFLAGS --pedantic-errors"
2678 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2679 #include <X11/Xlib.h>
2680 #include <X11/Xresource.h>]],
2686 XPointer *client_data;
2688 /* If we're not using GCC, it's probably not XFree86, and this is
2689 probably right, but we can't use something like --pedantic-errors. */
2690 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2691 char*, XIMProc, XPointer*);
2693 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2695 [emacs_cv_arg6_star=yes])
2696 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2697 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2698 either XPointer or XPointer*.])dnl
2699 if test "$emacs_cv_arg6_star" = yes; then
2700 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2702 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2707 ### Start of font-backend (under any platform) section.
2708 # (nothing here yet -- this is a placeholder)
2709 ### End of font-backend (under any platform) section.
2711 ### Start of font-backend (under X11) section.
2712 if test "${HAVE_X11}" = "yes"; then
2713 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2715 ## Use -lXft if available, unless `--with-xft=no'.
2717 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2720 if test "x${with_xft}" != "xno"; then
2722 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2723 ## Because xftfont.c uses XRenderQueryExtension, we also
2724 ## need to link to -lXrender.
2726 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2727 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2728 OLD_CPPFLAGS="$CPPFLAGS"
2729 OLD_CFLAGS="$CFLAGS"
2731 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2732 CFLAGS="$CFLAGS $XFT_CFLAGS"
2733 XFT_LIBS="-lXrender $XFT_LIBS"
2734 LIBS="$XFT_LIBS $LIBS"
2735 AC_CHECK_HEADER(X11/Xft/Xft.h,
2736 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2737 [[#include <X11/X.h>]])
2739 if test "${HAVE_XFT}" = "yes"; then
2740 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2742 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2744 CPPFLAGS="$OLD_CPPFLAGS"
2745 CFLAGS="$OLD_CFLAGS"
2747 fi # "${HAVE_XFT}" = "yes"
2748 fi # "$HAVE_XFT" != no
2749 fi # "x${with_xft}" != "xno"
2751 ## We used to allow building with FreeType and without Xft.
2752 ## However, the ftx font backend driver is not in good shape.
2753 if test "$HAVE_XFT" != "yes"; then
2754 dnl For the "Does Emacs use" message at the end.
2758 dnl Strict linkers fail with
2759 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2760 dnl if -lfreetype is not specified.
2761 dnl The following is needed to set FREETYPE_LIBS.
2762 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2765 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2769 if test "${HAVE_FREETYPE}" = "yes"; then
2770 AC_DEFINE(HAVE_FREETYPE, 1,
2771 [Define to 1 if using the freetype and fontconfig libraries.])
2772 if test "${with_libotf}" != "no"; then
2773 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2775 if test "$HAVE_LIBOTF" = "yes"; then
2776 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2777 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2778 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2779 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2780 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2781 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2782 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2786 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2787 dnl Does the new font backend require it, or can it work without it?
2791 if test "${HAVE_LIBOTF}" = yes; then
2792 if test "${with_m17n_flt}" != "no"; then
2793 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2794 if test "$HAVE_M17N_FLT" = "yes"; then
2795 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2806 ### End of font-backend (under X11) section.
2808 AC_SUBST(FREETYPE_CFLAGS)
2809 AC_SUBST(FREETYPE_LIBS)
2810 AC_SUBST(FONTCONFIG_CFLAGS)
2811 AC_SUBST(FONTCONFIG_LIBS)
2812 AC_SUBST(LIBOTF_CFLAGS)
2813 AC_SUBST(LIBOTF_LIBS)
2814 AC_SUBST(M17N_FLT_CFLAGS)
2815 AC_SUBST(M17N_FLT_LIBS)
2817 ### Use -lXpm if available, unless `--with-xpm=no'.
2818 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2821 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2822 if test "${with_xpm}" != "no"; then
2823 SAVE_CPPFLAGS="$CPPFLAGS"
2824 SAVE_LDFLAGS="$LDFLAGS"
2825 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2826 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2827 AC_CHECK_HEADER(X11/xpm.h,
2828 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2829 if test "${HAVE_XPM}" = "yes"; then
2830 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2831 AC_EGREP_CPP(no_return_alloc_pixels,
2832 [#include "X11/xpm.h"
2833 #ifndef XpmReturnAllocPixels
2834 no_return_alloc_pixels
2836 ], HAVE_XPM=no, HAVE_XPM=yes)
2838 if test "${HAVE_XPM}" = "yes"; then
2839 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2843 CPPFLAGS="$SAVE_CPPFLAGS"
2844 LDFLAGS="$SAVE_LDFLAGS"
2849 if test "${HAVE_XPM}" = "yes"; then
2850 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2855 if test "${HAVE_X11}" = "yes"; then
2856 if test "${with_xpm}" != "no"; then
2857 AC_CHECK_HEADER(X11/xpm.h,
2858 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2859 if test "${HAVE_XPM}" = "yes"; then
2860 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2861 AC_EGREP_CPP(no_return_alloc_pixels,
2862 [#include "X11/xpm.h"
2863 #ifndef XpmReturnAllocPixels
2864 no_return_alloc_pixels
2866 ], HAVE_XPM=no, HAVE_XPM=yes)
2868 if test "${HAVE_XPM}" = "yes"; then
2876 if test "${HAVE_XPM}" = "yes"; then
2877 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2882 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2883 ### slightly different requirements wrt image libraries (it doesn't
2884 ### use -lXpm because it loads the xpm shared library dynamically at
2886 if test "${opsys}" = "mingw32"; then
2887 if test "${with_xpm}" != "no"; then
2888 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2892 if test "${HAVE_XPM}" = "yes"; then
2893 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2899 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2900 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2903 if test "${opsys}" = "mingw32"; then
2904 if test "${with_jpeg}" != "no"; then
2905 dnl Checking for jpeglib.h can lose because of a redefinition of
2907 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2909 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2910 if test "${HAVE_JPEG}" = "yes"; then
2911 AC_DEFINE(HAVE_JPEG)
2912 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2913 [#include <jpeglib.h>
2914 version=JPEG_LIB_VERSION
2916 [AC_DEFINE(HAVE_JPEG)],
2917 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2920 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2921 if test "${with_jpeg}" != "no"; then
2922 dnl Checking for jpeglib.h can lose because of a redefinition of
2924 AC_CHECK_HEADER(jerror.h,
2925 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2928 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2929 if test "${HAVE_JPEG}" = "yes"; then
2930 AC_DEFINE(HAVE_JPEG)
2931 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2932 [#include <jpeglib.h>
2933 version=JPEG_LIB_VERSION
2935 [AC_DEFINE(HAVE_JPEG)],
2936 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2939 if test "${HAVE_JPEG}" = "yes"; then
2945 ### Use -lpng if available, unless `--with-png=no'.
2946 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2949 if test "${opsys}" = "mingw32"; then
2950 if test "${with_png}" != "no"; then
2951 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2953 if test "${HAVE_PNG}" = "yes"; then
2954 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2956 AC_CHECK_DECL(png_longjmp,
2958 [AC_DEFINE(PNG_DEPSTRUCT, [],
2959 [Define to empty to suppress deprecation warnings when building
2960 with --enable-gcc-warnings and with libpng versions before 1.5,
2961 which lack png_longjmp.])],
2962 [[#ifdef HAVE_LIBPNG_PNG_H
2963 # include <libpng/png.h>
2969 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2970 if test "${with_png}" != "no"; then
2971 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2972 # in /usr/include/libpng.
2973 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2974 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2975 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2979 if test "${HAVE_PNG}" = "yes"; then
2980 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2981 LIBPNG="-lpng -lz -lm"
2983 AC_CHECK_DECL(png_longjmp,
2985 [AC_DEFINE(PNG_DEPSTRUCT, [],
2986 [Define to empty to suppress deprecation warnings when building
2987 with --enable-gcc-warnings and with libpng versions before 1.5,
2988 which lack png_longjmp.])],
2989 [[#ifdef HAVE_LIBPNG_PNG_H
2990 # include <libpng/png.h>
3001 if test "${with_zlib}" != "no"; then
3003 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3005 case $ac_cv_search_inflateEnd in
3006 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3009 if test "${HAVE_ZLIB}" = "yes"; then
3010 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3011 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3012 if test "${opsys}" = "mingw32"; then
3019 ### Use -ltiff if available, unless `--with-tiff=no'.
3020 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3023 if test "${opsys}" = "mingw32"; then
3024 if test "${with_tiff}" != "no"; then
3025 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3027 if test "${HAVE_TIFF}" = "yes"; then
3028 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3030 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3031 if test "${with_tiff}" != "no"; then
3032 AC_CHECK_HEADER(tiffio.h,
3034 # At least one tiff package requires the jpeg library.
3035 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3036 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3039 if test "${HAVE_TIFF}" = "yes"; then
3040 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3041 dnl FIXME -lz -lm, as per libpng?
3047 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3048 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3051 if test "${opsys}" = "mingw32"; then
3052 if test "${with_gif}" != "no"; then
3053 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3055 if test "${HAVE_GIF}" = "yes"; then
3056 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3058 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3059 || test "${HAVE_W32}" = "yes"; then
3060 AC_CHECK_HEADER(gif_lib.h,
3061 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3062 # Earlier versions can crash Emacs.
3063 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3065 if test "$HAVE_GIF" = yes; then
3067 elif test "$HAVE_GIF" = maybe; then
3068 # If gif_lib.h but no libgif, try libungif.
3069 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3070 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3073 if test "${HAVE_GIF}" = "yes"; then
3074 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3079 dnl Check for required libraries.
3080 if test "${HAVE_X11}" = "yes"; then
3083 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3084 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3085 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3086 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3087 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3088 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3089 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3090 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3091 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3092 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3094 if test "X${MISSING}" != X; then
3095 AC_MSG_ERROR([The following required libraries were not found:
3097 Maybe some development libraries/packages are missing?
3098 If you don't want to link with them give
3100 as options to configure])
3104 ### Use -lgpm if available, unless `--with-gpm=no'.
3107 if test "${with_gpm}" != "no"; then
3108 AC_CHECK_HEADER(gpm.h,
3109 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3111 if test "${HAVE_GPM}" = "yes"; then
3112 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3118 dnl Check for malloc/malloc.h on darwin
3119 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3122 ### Use NeXTstep API to implement GUI.
3123 if test "${HAVE_NS}" = "yes"; then
3124 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3125 if test "${NS_IMPL_COCOA}" = "yes"; then
3126 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3128 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3129 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3130 # See also .m.o rule in Makefile.in */
3131 # FIXME: are all these flags really needed? Document here why. */
3132 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3133 ## Extra CFLAGS applied to src/*.m files.
3134 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3136 # We also have mouse menus.
3141 if test "${HAVE_W32}" = "yes"; then
3145 ### Use session management (-lSM -lICE) if available
3148 if test "${HAVE_X11}" = "yes"; then
3149 AC_CHECK_HEADER(X11/SM/SMlib.h,
3150 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3152 if test "${HAVE_X_SM}" = "yes"; then
3153 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3157 *) LIBS="$LIBXSM $LIBS" ;;
3163 ### Use XRandr (-lXrandr) if available
3165 if test "${HAVE_X11}" = "yes"; then
3166 XRANDR_REQUIRED=1.2.2
3167 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3168 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3169 if test $HAVE_XRANDR = no; then
3170 # Test old way in case pkg-config doesn't have it (older machines).
3171 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3172 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3173 if test $HAVE_XRANDR = yes; then
3174 XRANDR_LIBS=-lXrandr
3175 AC_SUBST(XRANDR_LIBS)
3178 if test $HAVE_XRANDR = yes; then
3179 SAVE_CFLAGS="$CFLAGS"
3181 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3182 LIBS="$XRANDR_LIBS $LIBS"
3183 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3184 CFLAGS="$SAVE_CFLAGS"
3187 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3191 ### Use Xinerama (-lXinerama) if available
3193 if test "${HAVE_X11}" = "yes"; then
3194 XINERAMA_REQUIRED=1.0.2
3195 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3196 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3198 if test $HAVE_XINERAMA = no; then
3199 # Test old way in case pkg-config doesn't have it (older machines).
3200 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3201 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3202 if test $HAVE_XINERAMA = yes; then
3203 XINERAMA_LIBS=-lXinerama
3204 AC_SUBST(XINERAMA_LIBS)
3207 if test $HAVE_XINERAMA = yes; then
3208 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3213 ### Use libxml (-lxml2) if available
3214 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3216 if test "${with_xml2}" != "no"; then
3217 ### I'm not sure what the version number should be, so I just guessed.
3218 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3219 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3220 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3221 SAVE_CPPFLAGS="$CPPFLAGS"
3222 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3223 AC_CHECK_HEADER(libxml/HTMLparser.h,
3224 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3225 [#include <libxml/HTMLparser.h>])])
3226 CPPFLAGS="$SAVE_CPPFLAGS"
3227 if test "${HAVE_LIBXML2}" = "yes"; then
3228 LIBXML2_LIBS="-lxml2"
3229 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3232 if test "${HAVE_LIBXML2}" = "yes"; then
3233 if test "${opsys}" != "mingw32"; then
3234 LIBS="$LIBXML2_LIBS $LIBS"
3235 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3239 if test "${HAVE_LIBXML2}" = "yes"; then
3240 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3247 AC_SUBST(LIBXML2_LIBS)
3248 AC_SUBST(LIBXML2_CFLAGS)
3250 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3251 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3252 if test "${opsys}" = "mingw32"; then
3253 emacs_cv_netdb_declares_h_errno=yes
3255 AC_CACHE_CHECK(whether netdb declares h_errno,
3256 emacs_cv_netdb_declares_h_errno,
3257 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3258 [[return h_errno;]])],
3259 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3260 if test $emacs_cv_netdb_declares_h_errno = yes; then
3261 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3264 # sqrt and other floating-point functions such as fmod and frexp
3265 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3266 if test "${opsys}" != "mingw32"; then
3267 AC_CHECK_LIB(m, sqrt)
3270 # Check for mail-locking functions in a "mail" library. Probably this should
3271 # have the same check as for liblockfile below.
3272 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3273 if test $have_mail = yes; then
3275 LIBS="$LIBS_MAIL $LIBS"
3276 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3280 dnl Debian, at least:
3281 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3282 if test $have_lockfile = yes; then
3283 LIBS_MAIL=-llockfile
3284 LIBS="$LIBS_MAIL $LIBS"
3285 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3287 # If we have the shared liblockfile, assume we must use it for mail
3288 # locking (e.g. Debian). If we couldn't link against liblockfile
3289 # (no liblockfile.a installed), ensure that we don't need to.
3290 dnl This works for files generally, not just executables.
3291 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3292 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3293 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3294 if test $ac_cv_prog_liblockfile = yes; then
3295 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3296 This probably means that movemail could lose mail.
3297 There may be a `development' package to install containing liblockfile.])
3300 AC_CHECK_HEADERS_ONCE(maillock.h)
3303 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3304 ## interlock access to the mail spool. The alternative is a lock file named
3305 ## /usr/spool/mail/$USER.lock.
3308 aix4-2) mail_lock="lockf" ;;
3310 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3312 ## On GNU/Linux systems, both methods are used by various mail programs.
3313 ## I assume most people are using newer mailers that have heard of flock.
3314 ## Change this if you need to.
3315 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3316 ## configure gets the right answers, and that means *NOT* using flock.
3317 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3318 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3319 ## Debian maintainer hasn't provided a clean fix for Emacs.
3320 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3321 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3322 ## correct logic. -- fx
3323 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3324 ## liblockfile is a Free Software replacement for libmail, used on
3325 ## Debian systems and elsewhere. -rfr.
3328 if test $have_mail = yes || test $have_lockfile = yes; then
3329 test $ac_cv_header_maillock_h = yes && mail_lock=no
3334 mail_lock="none-needed" ;;
3338 case "$mail_lock" in
3339 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3341 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3345 *) BLESSMAIL_TARGET="need-blessmail" ;;
3347 AC_SUBST(BLESSMAIL_TARGET)
3350 AC_CHECK_FUNCS(accept4 gethostname \
3351 getrusage get_current_dir_name \
3353 select getpagesize setlocale \
3354 getrlimit setrlimit shutdown getaddrinfo \
3355 strsignal setitimer \
3356 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3357 gai_strerror getline getdelim sync \
3358 difftime posix_memalign \
3359 getpwent endpwent getgrent endgrent \
3361 cfmakeraw cfsetspeed copysign __executable_start log2)
3363 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3364 ## has a broken `rint' in some library versions including math library
3365 ## version number A.09.05.
3366 ## You can fix the math library by installing patch number PHSS_4630.
3367 ## But we can fix it more reliably for Emacs by just not using rint.
3368 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3371 *) AC_CHECK_FUNCS(random rint) ;;
3374 dnl Cannot use AC_CHECK_FUNCS
3375 AC_CACHE_CHECK([for __builtin_unwind_init],
3376 emacs_cv_func___builtin_unwind_init,
3377 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3378 emacs_cv_func___builtin_unwind_init=yes,
3379 emacs_cv_func___builtin_unwind_init=no)])
3380 if test $emacs_cv_func___builtin_unwind_init = yes; then
3381 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3382 [Define to 1 if you have the `__builtin_unwind_init' function.])
3385 AC_CHECK_HEADERS_ONCE(sys/un.h)
3390 AC_CHECK_FUNCS(grantpt)
3392 # PTY-related GNU extensions.
3393 AC_CHECK_FUNCS(getpt posix_openpt)
3395 # Check this now, so that we will NOT find the above functions in ncurses.
3396 # That is because we have not set up to link ncurses in lib-src.
3397 # It's better to believe a function is not available
3398 # than to expect to find it in ncurses.
3399 # Also we need tputs and friends to be able to build at all.
3400 AC_MSG_CHECKING([for library containing tputs])
3401 # Run a test program that contains a call to tputs, a call that is
3402 # never executed. This tests whether a pre-'main' dynamic linker
3403 # works with the library. It's too much trouble to actually call
3404 # tputs in the test program, due to portability hassles. When
3405 # cross-compiling, assume the test program will run if it links.
3406 AC_DEFUN([tputs_link_source], [
3408 [[extern void tputs (const char *, int, int (*)(int));
3409 int main (int argc, char **argv)
3412 tputs (argv[0], 0, 0);
3416 if test "${opsys}" = "mingw32"; then
3419 # Maybe curses should be tried earlier?
3420 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3421 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3423 if test -z "$tputs_library"; then
3427 LIBS_TERMCAP=-l$tputs_library
3429 LIBS="$LIBS_TERMCAP $LIBS"
3431 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3432 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3434 if test "X$msg" != Xno; then
3439 AC_MSG_RESULT([$msg])
3440 if test "X$msg" = Xno; then
3441 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3442 The following libraries were tried (in order):
3443 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3444 Please try installing whichever of these libraries is most appropriate
3445 for your system, together with its header files.
3446 For example, a libncurses-dev(el) or similar package.])
3449 ## Use termcap instead of terminfo?
3450 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3452 ## FIXME? In the cases below where we unconditionally set
3453 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3454 ## if that was found above to have tputs.
3455 ## Should we use the gnu* logic everywhere?
3457 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3458 ## The ncurses library has been moved out of the System framework in
3459 ## Mac OS X 10.2. So if configure detects it, set the command-line
3460 ## option to use it.
3461 darwin) LIBS_TERMCAP="-lncurses" ;;
3463 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3466 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3467 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3468 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3469 [[#if __FreeBSD_version < 400000
3472 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3474 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3476 if test $emacs_cv_freebsd_terminfo = yes; then
3477 LIBS_TERMCAP="-lncurses"
3480 LIBS_TERMCAP="-ltermcap"
3490 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3492 LIBS_TERMCAP="-ltermcap"
3496 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3498 ## hpux: Make sure we get select from libc rather than from libcurses
3499 ## because libcurses on HPUX 10.10 has a broken version of select.
3500 ## We used to use -lc -lcurses, but this may be cleaner.
3501 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3502 # set that way, now it uses the default). Isn't this a contradiction?
3503 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3507 TERMCAP_OBJ=tparam.o
3508 if test $TERMINFO = yes; then
3509 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3510 TERMCAP_OBJ=terminfo.o
3512 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3513 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3515 AC_SUBST(LIBS_TERMCAP)
3516 AC_SUBST(TERMCAP_OBJ)
3519 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3520 # On Darwin, res_init appears not to be useful: see bug#562 and
3521 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3524 if test $opsys != darwin; then
3526 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3527 #include <arpa/nameser.h>
3528 #include <resolv.h>]],
3529 [[return res_init();]])],
3530 have_res_init=yes, have_res_init=no)
3531 if test "$have_res_init" = no; then
3533 LIBS="$LIBS -lresolv"
3534 AC_MSG_CHECKING(for res_init with -lresolv)
3535 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3536 #include <arpa/nameser.h>
3537 #include <resolv.h>]],
3538 [[return res_init();]])],
3539 have_res_init=yes, have_res_init=no)
3540 AC_MSG_RESULT($have_res_init)
3541 if test "$have_res_init" = yes ; then
3547 if test "$have_res_init" = yes; then
3548 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3552 # Do we need the Hesiod library to provide the support routines?
3553 dnl FIXME? Should we be skipping this on Darwin too?
3555 if test "$with_hesiod" != no ; then
3556 # Don't set $LIBS here -- see comments above. FIXME which comments?
3557 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3558 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3559 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3560 if test "$resolv" = yes ; then
3565 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3566 hesiod=yes, :, $RESOLVLIB)])
3568 if test x"$hesiod" = xyes; then
3574 # Do we need libresolv (due to res_init or Hesiod)?
3575 if test "$resolv" = yes && test $opsys != darwin; then
3582 # These tell us which Kerberos-related libraries to use.
3589 if test "${with_kerberos}" != no; then
3590 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3591 if test $have_com_err = yes; then
3592 COM_ERRLIB=-lcom_err
3593 LIBS="$COM_ERRLIB $LIBS"
3595 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3596 if test $have_crypto = yes; then
3598 LIBS="$CRYPTOLIB $LIBS"
3600 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3601 if test $have_k5crypto = yes; then
3602 CRYPTOLIB=-lk5crypto
3603 LIBS="$CRYPTOLIB $LIBS"
3605 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3606 if test $have_krb5=yes; then
3608 LIBS="$KRB5LIB $LIBS"
3610 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3611 if test "${with_kerberos5}" = no; then
3612 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3613 if test $have_des425 = yes; then
3615 LIBS="$DESLIB $LIBS"
3617 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3618 if test $have_des = yes; then
3620 LIBS="$DESLIB $LIBS"
3623 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3624 if test $have_krb4 = yes; then
3626 LIBS="$KRB4LIB $LIBS"
3628 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3629 if test $have_krb = yes; then
3631 LIBS="$KRB4LIB $LIBS"
3636 if test "${with_kerberos5}" != no; then
3637 AC_CHECK_HEADERS(krb5.h,
3638 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3639 [#include <krb5.h>])])
3641 AC_CHECK_HEADERS(krb.h,,
3642 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3643 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3645 AC_CHECK_HEADERS(com_err.h)
3648 AC_SUBST(COM_ERRLIB)
3654 AC_CHECK_FUNCS_ONCE(tzset)
3655 AC_MSG_CHECKING(whether localtime caches TZ)
3656 AC_CACHE_VAL(emacs_cv_localtime_cache,
3657 [if test x$ac_cv_func_tzset = xyes; then
3658 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3659 char TZ_GMT0[] = "TZ=GMT0";
3660 char TZ_PST8[] = "TZ=PST8";
3663 time_t now = time ((time_t *) 0);
3664 int hour_GMT0, hour_unset;
3665 if (putenv (TZ_GMT0) != 0)
3667 hour_GMT0 = localtime (&now)->tm_hour;
3669 hour_unset = localtime (&now)->tm_hour;
3670 if (putenv (TZ_PST8) != 0)
3672 if (localtime (&now)->tm_hour == hour_GMT0)
3675 if (localtime (&now)->tm_hour != hour_unset)
3678 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3679 [# If we have tzset, assume the worst when cross-compiling.
3680 emacs_cv_localtime_cache=yes])
3682 # If we lack tzset, report that localtime does not cache TZ,
3683 # since we can't invalidate the cache if we don't have tzset.
3684 emacs_cv_localtime_cache=no
3686 AC_MSG_RESULT($emacs_cv_localtime_cache)
3687 if test $emacs_cv_localtime_cache = yes; then
3688 AC_DEFINE(LOCALTIME_CACHE, 1,
3689 [Define to 1 if localtime caches TZ.])
3693 AC_CHECK_FUNC(socket, , ok_so_far=no)
3694 if test $ok_so_far = yes; then
3695 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3697 if test $ok_so_far = yes; then
3698 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3700 if test $ok_so_far = yes; then
3701 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3702 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3703 [Define to 1 if you have inet sockets.])
3706 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3707 dnl This can be removed once we assume Autoconf 2.70.
3709 *-solaris2.4 | *-solaris2.4.*)
3710 dnl Disable the Autoconf-generated vfork test.
3711 : ${ac_cv_func_vfork_works=no};;
3716 AC_CHECK_FUNCS(snprintf)
3718 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3721 AC_MSG_CHECKING([whether GLib is linked in])
3722 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3725 [[g_print ("Hello world");]])],
3728 AC_MSG_RESULT([$links_glib])
3729 if test "${links_glib}" = "yes"; then
3730 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3731 if test "$HAVE_NS" = no;then
3737 dnl Adapted from Haible's version.
3738 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3739 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3740 [[char* cs = nl_langinfo(CODESET);]])],
3741 emacs_cv_langinfo_codeset=yes,
3742 emacs_cv_langinfo_codeset=no)
3744 if test $emacs_cv_langinfo_codeset = yes; then
3745 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3746 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3751 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3752 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3753 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3754 if test "$emacs_cv_c_restrict_arr" = yes; then
3755 AC_DEFINE(__restrict_arr, __restrict,
3756 [Define to compiler's equivalent of C99 restrict keyword in array
3757 declarations. Define as empty for no equivalent.])
3760 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3761 dnl how the tty code is related to POSIX and/or other versions of termios.
3762 dnl The following looks like a useful start.
3764 dnl AC_SYS_POSIX_TERMIOS
3765 dnl if test $ac_cv_sys_posix_termios = yes; then
3766 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3767 dnl and macros for terminal control.])
3768 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3771 dnl Turned on June 1996 supposing nobody will mind it.
3772 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3773 if test "${opsys}" != "mingw32"; then
3774 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3775 in the full name stands for the login id.])
3778 dnl Every platform that uses configure supports this.
3779 dnl There is a create-lockfiles option you can
3780 dnl customize if you do not want the lock files to be written.
3781 dnl So it is not clear that this #define still needs to exist.
3782 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3783 so that Emacs can tell instantly when you try to modify a file that
3784 someone else has modified in his/her Emacs.])
3786 dnl Everybody supports this, except MS.
3787 dnl Seems like the kind of thing we should be testing for, though.
3788 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3789 if test "${opsys}" != "mingw32"; then
3790 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3793 dnl Everybody supports this, except MS-DOS.
3794 dnl Seems like the kind of thing we should be testing for, though.
3795 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3796 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3797 4.2-compatible sockets.])
3799 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3801 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3802 a null file, or a data sink.])
3803 if test "${opsys}" = "mingw32"; then
3804 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3806 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3809 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3810 if test "${opsys}" = "mingw32"; then
3811 AC_DEFINE(SEPCHAR, [';'])
3813 AC_DEFINE(SEPCHAR, [':'])
3816 dnl Everybody supports this, except MS-DOS.
3817 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3819 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3822 AC_DEFINE(DIRECTORY_SEP, ['/'],
3823 [Character that separates directories in a file name.])
3825 if test "${opsys}" = "mingw32"; then
3826 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3827 [Returns true if character is a device separator.])
3829 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3830 [Returns true if character is a directory separator.])
3832 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3833 [Returns true if character is any form of separator.])
3835 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3836 [Returns true if character is a device separator.])
3838 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3839 [Returns true if character is a directory separator.])
3841 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3842 [Returns true if character is any form of separator.])
3845 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3849 dnl Unfortunately without libXmu we cannot support EditRes.
3850 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3851 AC_DEFINE(NO_EDITRES, 1)
3856 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3857 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3858 AC_DEFINE(NO_EDITRES, 1)
3864 irix6-5 | sol2* | unixware )
3865 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3866 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3867 dnl need the constant to dimension an array. So wire in the appropriate
3869 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3873 emacs_broken_SIGIO=no
3876 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3877 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3878 hpux* | irix6-5 | openbsd | sol2* | unixware )
3879 emacs_broken_SIGIO=yes
3883 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3884 dnl the way this system works, libc functions that return malloced
3885 dnl memory use the libc malloc implementation. Calling xfree or
3886 dnl xrealloc on the results of such functions results in a crash.
3888 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3889 dnl but that does not currently work on this system.
3891 dnl It is possible to completely override the malloc implementation on
3892 dnl AIX, but that involves putting the malloc functions in a shared
3893 dnl library and setting the MALLOCTYPE environment variable to point to
3894 dnl that shared library.
3896 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3897 dnl to avoid a crash just use the Emacs implementation for that function.
3899 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3900 dnl of this file, so that we do not check for get_current_dir_name
3901 dnl on AIX. But that might be fragile if something else ends
3902 dnl up testing for get_current_dir_name as a dependency.
3903 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3904 get_current_dir_name should not be used.])
3908 dnl Circumvent a bug in FreeBSD. In the following sequence of
3909 dnl writes/reads on a PTY, read(2) returns bogus data:
3911 dnl write(2) 1022 bytes
3912 dnl write(2) 954 bytes, get EAGAIN
3913 dnl read(2) 1024 bytes in process_read_output
3914 dnl read(2) 11 bytes in process_read_output
3916 dnl That is, read(2) returns more bytes than have ever been written
3917 dnl successfully. The 1033 bytes read are the 1022 bytes written
3918 dnl successfully after processing (for example with CRs added if the
3919 dnl terminal is set up that way which it is here). The same bytes will
3920 dnl be seen again in a later read(2), without the CRs.
3921 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3922 work around an issue when reading from a PTY.])
3928 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3929 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3934 darwin | dragonfly | freebsd | netbsd | openbsd )
3935 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3936 close a pty to make it a controlling terminal (it is already a
3937 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3941 dnl FIXME Surely we can test for this rather than hard-code it.
3943 netbsd | openbsd) sound_device="/dev/audio" ;;
3944 *) sound_device="/dev/dsp" ;;
3948 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3949 [Name of the default sound device.])
3952 dnl Emacs can read input using SIGIO and buffering characters itself,
3953 dnl or using CBREAK mode and making C-g cause SIGINT.
3954 dnl The choice is controlled by the variable interrupt_input.
3956 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3958 dnl Emacs uses the presence of the USABLE_SIGIO macro
3959 dnl to indicate whether or not signal-driven I/O is possible. It uses
3960 dnl INTERRUPT_INPUT to decide whether to use it by default.
3962 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3963 dnl CBREAK mode has two disadvantages
3964 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3965 dnl I hear that in system V this problem does not exist.
3966 dnl 2) Control-G causes output to be discarded.
3967 dnl I do not know whether this can be fixed in system V.
3969 dnl Another method of doing input is planned but not implemented.
3970 dnl It would have Emacs fork off a separate process
3971 dnl to read the input and send it to the true Emacs process
3974 darwin | gnu-linux | gnu-kfreebsd )
3975 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3980 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3981 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3982 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3983 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3984 dnl taking float or double parameters.
3986 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3987 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3988 file defines `NeedWidePrototypes' as `NO'.])
3993 dnl Used in process.c, this must be a loop, even if it only runs once.
3994 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3995 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3996 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3997 dnl trying suffixes 0-16.
3998 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3999 first PTY, if PTYs are supported.])
4000 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4001 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4002 end of a PTY, if non-standard.])
4003 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4004 end of a PTY, if non-standard.])
4008 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4009 dnl You allocate a pty by opening /dev/ptc to get the master side.
4010 dnl To get the name of the slave side, you just ttyname() the master side.
4011 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4012 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4016 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4017 dnl multi-line AC_DEFINEs are hard. :(
4018 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)])
4019 AC_DEFINE(PTY_NAME_SPRINTF, [])
4020 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4023 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4025 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4026 dnl Not used, because PTY_ITERATION is defined.
4027 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4028 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4029 dnl But we don't have to block SIGCHLD because it is blocked in the
4030 dnl implementation of grantpt.
4031 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4032 AC_DEFINE(PTY_NAME_SPRINTF, [])
4033 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4037 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4040 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4042 if test "x$ac_cv_func_grantpt" = xyes; then
4043 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4044 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4045 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4046 dnl to prevent sigchld_handler from intercepting the child's death.
4047 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); }])
4048 dnl if HAVE_POSIX_OPENPT
4049 if test "x$ac_cv_func_posix_openpt" = xyes; then
4050 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4051 AC_DEFINE(PTY_NAME_SPRINTF, [])
4053 elif test "x$ac_cv_func_getpt" = xyes; then
4054 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4055 AC_DEFINE(PTY_NAME_SPRINTF, [])
4057 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4060 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4065 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4066 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4067 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4071 dnl It looks like this cannot be right, because it is not a loop.
4072 dnl However, process.c actually does this:
4078 dnl which presumably makes it OK, since irix == sgi (?).
4079 dnl FIXME it seems like this special treatment is unnecessary?
4080 dnl Why can't irix use a single-trip loop like eg cygwin?
4081 AC_DEFINE(PTY_ITERATION, [])
4082 dnl Not used, because PTY_ITERATION is defined.
4083 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4084 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); }])
4085 dnl No need to get the pty name at all.
4086 AC_DEFINE(PTY_NAME_SPRINTF, [])
4087 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4088 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4092 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4093 dnl from intercepting that death. If any child but grantpt's should die
4094 dnl within, it should be caught after sigrelse(2).
4095 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); }])
4099 dnl Comments are as per sol2*.
4100 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); }])
4107 dnl This change means that we don't loop through allocate_pty too
4108 dnl many times in the (rare) event of a failure.
4109 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4110 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4111 dnl Push various streams modules onto a PTY channel. Used in process.c.
4112 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.])
4117 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4118 "typing" a signal character on the pty.])
4121 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4122 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4123 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4124 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4127 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4128 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4129 gnu-linux | gnu-kfreebsd )
4131 AC_MSG_CHECKING([for signals via characters])
4132 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4133 #include <linux/version.h>
4134 #if LINUX_VERSION_CODE < 0x20400
4135 # error "Linux version too old"
4137 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4139 AC_MSG_RESULT([$emacs_signals_via_chars])
4140 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4145 dnl Used in lisp.h, emacs.c, vm-limit.c
4146 dnl NEWS.18 describes this as "a number which contains
4147 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4148 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4149 stored in a Lisp_Object.])
4150 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4154 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4155 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4158 dnl The data segment on this machine always starts at address 0x40000000.
4159 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4162 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4167 AH_TEMPLATE(TAB3, [Undocumented.])
4170 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4172 gnu | dragonfly | freebsd | netbsd | openbsd )
4173 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4174 AC_DEFINE(TAB3, OXTABS)
4177 gnu-linux | gnu-kfreebsd )
4178 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4182 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4183 [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)],
4184 [Mark a secondary stack, like the register stack on the ia64.]), [])
4188 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4189 run_time_remap; for HPUX.])
4194 dnl This won't be used automatically yet. We also need to know, at least,
4195 dnl that the stack is continuous.
4196 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4197 registers relevant for conservative garbage collection in the jmp_buf.])
4201 dnl Not all the architectures are tested, but there are Debian packages
4202 dnl for SCM and/or Guile on them, so the technique must work. See also
4203 dnl comments in alloc.c concerning setjmp and gcc.
4204 dnl Fixme: it's probably safe to just use the GCC conditional below.
4205 gnu-linux | gnu-kfreebsd )
4206 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4207 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4208 || defined __alpha__ || defined __mips__ || defined __s390__ \
4209 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4210 || defined __ia64__ || defined __sh__
4213 # error "setjmp not known to work on this arch"
4215 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4220 if test x$GCC = xyes; then
4221 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4222 AC_DEFINE(GC_SETJMP_WORKS, 1)
4225 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4226 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4227 AC_DEFINE(GC_SETJMP_WORKS, 1)
4232 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4233 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4236 [[#include <setjmp.h>
4238 # define _longjmp longjmp
4243 _longjmp (j, 1);]])],
4244 [emacs_cv_func__setjmp=yes],
4245 [emacs_cv_func__setjmp=no])])
4246 if test $emacs_cv_func__setjmp = yes; then
4247 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4249 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4252 [[#include <setjmp.h>
4255 if (! sigsetjmp (j, 1))
4256 siglongjmp (j, 1);]])],
4257 [emacs_cv_func_sigsetjmp=yes],
4258 [emacs_cv_func_sigsetjmp=no])])
4259 if test $emacs_cv_func_sigsetjmp = yes; then
4260 AC_DEFINE([HAVE_SIGSETJMP], 1,
4261 [Define to 1 if sigsetjmp and siglongjmp work.
4262 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4268 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4269 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4270 dnl and this is all we need.
4271 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4278 dnl Used in xfaces.c.
4279 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4280 some systems, where it requires time.h.])
4285 dnl Define symbols to identify the version of Unix this is.
4286 dnl Define all the symbols that apply correctly.
4287 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4288 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4289 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4290 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4295 dnl This symbol should be defined on AIX Version 3 ???????
4296 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4298 # error "_AIX not defined"
4300 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4304 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4308 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4309 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4310 dnl distinguish OS X from pure Darwin.
4311 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4314 gnu-linux | gnu-kfreebsd )
4316 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4321 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4326 AC_DEFINE(USG5_4, [])
4327 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4331 AC_DEFINE(DOS_NT, [])
4332 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4333 if test "x$ac_enable_checking" != "x" ; then
4334 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4340 AC_DEFINE(USG5_4, [])
4341 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4346 AC_DEFINE(USG5_4, [])
4350 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4353 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4354 emacs_cv_usable_FIONREAD=no
4358 emacs_cv_usable_FIONREAD=yes
4363 [AC_LANG_PROGRAM([[#include <sys/types.h>
4364 #include <sys/ioctl.h>
4366 # include <sys/filio.h>
4369 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4370 [emacs_cv_usable_FIONREAD=yes],
4371 [emacs_cv_usable_FIONREAD=no])
4374 if test $emacs_cv_usable_FIONREAD = yes; then
4375 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4377 if test $emacs_broken_SIGIO = no; then
4378 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4380 [AC_LANG_PROGRAM([[#include <fcntl.h>
4383 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4384 [emacs_cv_usable_SIGIO=yes],
4385 [emacs_cv_usable_SIGIO=no])],
4386 [emacs_cv_usable_SIGIO=yes],
4387 [emacs_cv_usable_SIGIO=no])
4388 if test $emacs_cv_usable_SIGIO = yes; then
4389 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4396 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4397 dnl and on Cygwin prior to version 1.7.24 that becomes the
4398 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4399 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4400 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4401 dnl needed starting with cygwin-1.7.24, and it is no longer
4402 dnl effective starting with glib-2.36. */
4404 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4405 G_SLICE environment variable to "always-malloc" at startup.])
4409 dnl It works to open the pty's tty in the parent (Emacs), then
4410 dnl close and reopen it in the child.
4411 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4412 works to open a pty's tty in the parent process, then close and
4413 reopen it in the child.])
4417 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4418 use VSUSP instead of VSWTCH.])
4422 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4427 # Set up the CFLAGS for real compilation, so we can substitute it.
4428 CFLAGS="$REAL_CFLAGS"
4429 CPPFLAGS="$REAL_CPPFLAGS"
4431 ## Hack to detect a buggy GCC version.
4432 if test "x$GCC" = xyes \
4433 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4434 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4435 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4436 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4439 version=$PACKAGE_VERSION
4441 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4442 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4443 [Short copyright string for this version of Emacs.])
4446 ### Specify what sort of things we'll be editing into Makefile and config.h.
4447 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4449 AC_SUBST(configuration)
4454 AC_SUBST(exec_prefix)
4457 AC_SUBST(sharedstatedir)
4458 AC_SUBST(libexecdir)
4463 AC_SUBST(standardlisppath)
4464 AC_SUBST(locallisppath)
4466 AC_SUBST(x_default_search_path)
4468 AC_SUBST(archlibdir)
4473 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4474 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4475 ## end of LIBX_BASE, but nothing ever set it.
4476 AC_SUBST(LD_SWITCH_X_SITE)
4477 AC_SUBST(C_SWITCH_X_SITE)
4478 AC_SUBST(GNUSTEP_CFLAGS)
4480 ## Used in lwlib/Makefile.in.
4481 AC_SUBST(X_TOOLKIT_TYPE)
4483 AC_SUBST(ns_appbindir)
4484 AC_SUBST(ns_appresdir)
4486 AC_SUBST(GNU_OBJC_CFLAGS)
4487 AC_SUBST(OTHER_FILES)
4489 if test -n "${term_header}"; then
4490 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4491 [Define to the header for the built-in window system.])
4494 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4495 [Define to the canonical Emacs configuration name.])
4496 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4497 [Define to the options passed to configure.])
4498 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4499 define this to include extra configuration information.])
4503 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4510 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4511 AC_DEFINE(HAVE_X_WINDOWS, 1,
4512 [Define to 1 if you want to use the X window system.])
4514 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4516 if test "$HAVE_XFT" = "yes"; then
4517 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4518 elif test "$HAVE_FREETYPE" = "yes"; then
4519 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4529 if test "${USE_X_TOOLKIT}" != "none" ; then
4531 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4532 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4533 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4534 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4535 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4539 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4540 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4544 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4545 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4546 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4550 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4551 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4554 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4557 AC_SUBST(WIDGET_OBJ)
4560 case "$USE_X_TOOLKIT" in
4561 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4562 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4563 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4565 AC_SUBST(TOOLKIT_LIBW)
4567 if test "${opsys}" != "mingw32"; then
4568 if test "$USE_X_TOOLKIT" = "none"; then
4569 LIBXT_OTHER="\$(LIBXSM)"
4570 OLDXMENU_TARGET="really-oldXMenu"
4572 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4573 OLDXMENU_TARGET="really-lwlib"
4576 AC_SUBST(LIBXT_OTHER)
4578 ## The X Menu stuff is present in the X10 distribution, but missing
4579 ## from X11. If we have X10, just use the installed library;
4580 ## otherwise, use our own copy.
4581 if test "${HAVE_X11}" = "yes" ; then
4582 AC_DEFINE(HAVE_X11, 1,
4583 [Define to 1 if you want to use version 11 of X windows.
4584 Otherwise, Emacs expects to use version 10.])
4586 if test "$USE_X_TOOLKIT" = "none"; then
4587 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4589 OLDXMENU="\${lwlibdir}/liblw.a"
4591 LIBXMENU="\$(OLDXMENU)"
4592 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4593 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4595 ## For a syntactically valid Makefile; not actually used for anything.
4596 ## See comments in src/Makefile.in.
4598 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4599 if test "${HAVE_X_WINDOWS}" = "yes"; then
4608 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4615 AC_SUBST(OLDXMENU_TARGET)
4618 AC_SUBST(LIBX_OTHER)
4619 AC_SUBST(OLDXMENU_DEPS)
4621 if test "${HAVE_MENUS}" = "yes" ; then
4622 AC_DEFINE(HAVE_MENUS, 1,
4623 [Define to 1 if you have mouse menus.
4624 (This is automatic if you use X, but the option to specify it remains.)
4625 It is also defined with other window systems that support xmenu.c.])
4628 if test "${GNU_MALLOC}" = "yes" ; then
4629 AC_DEFINE(GNU_MALLOC, 1,
4630 [Define to 1 if you want to use the GNU memory allocator.])
4634 if test "${REL_ALLOC}" = "yes" ; then
4635 AC_DEFINE(REL_ALLOC, 1,
4636 [Define REL_ALLOC if you want to use the relocating allocator for
4639 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4641 AC_SUBST(RALLOC_OBJ)
4643 if test "$opsys" = "cygwin"; then
4644 CYGWIN_OBJ="sheap.o cygw32.o"
4645 ## Cygwin differs because of its unexec().
4647 POST_ALLOC_OBJ=lastfile.o
4648 elif test "$opsys" = "mingw32"; then
4651 POST_ALLOC_OBJ=lastfile.o
4654 PRE_ALLOC_OBJ=lastfile.o
4657 AC_SUBST(CYGWIN_OBJ)
4658 AC_SUBST(PRE_ALLOC_OBJ)
4659 AC_SUBST(POST_ALLOC_OBJ)
4661 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4662 # it temporarily reverts them to their pre-pkg-config values,
4663 # because gnulib needs to work with both src (which uses the
4664 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4665 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4666 # and it therefore needs to run in an environment where LIBS does not
4667 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4668 # for some package unrelated to lib-src.
4671 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4672 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4673 gl_ASSERT_NO_GNULIB_POSIXCHECK
4674 gl_ASSERT_NO_GNULIB_TESTS
4679 if test "${opsys}" = "mingw32"; then
4680 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4681 # Remove unneeded switches from the value of CC that goes to Makefiles
4682 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4686 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4689 ## The -headerpad option tells ld (see man page) to leave room at the
4690 ## end of the header for adding load commands. Needed for dumping.
4691 ## 0x690 is the total size of 30 segment load commands (at 56
4692 ## each); under Cocoa 31 commands are required.
4693 if test "$HAVE_NS" = "yes"; then
4694 libs_nsgui="-framework AppKit"
4695 if test "$NS_IMPL_COCOA" = "yes"; then
4696 libs_nsgui="$libs_nsgui -framework IOKit"
4703 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4705 ## This is here because src/Makefile.in did some extra fiddling around
4706 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4707 ## LD_SWITCH_SYSTEM_TEMACS instead,
4708 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4709 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4712 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4713 ## find X at run-time.
4714 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4715 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4716 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4717 ## had different values in configure (in ac_link) and src/Makefile.in.
4718 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4719 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4722 ## MinGW64 does not prepend an underscore to symbols, so we must
4723 ## pass a different -entry switch to linker. FIXME: It is better
4724 ## to make the entry points the same by changing unexw32.c.
4725 case "$canonical" in
4726 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4727 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4731 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4733 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4736 if test x$ac_enable_profiling != x ; then
4738 *freebsd | gnu-linux) ;;
4739 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4743 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4745 ## MinGW-specific post-link processing of temacs.
4746 TEMACS_POST_LINK=":"
4749 if test "${opsys}" = "mingw32"; then
4750 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4751 ADDSECTION="../nt/addsection\$(EXEEXT)"
4752 ## Preload heap size of temacs.exe in MB.
4753 case "$canonical" in
4754 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4755 *) EMACS_HEAPSIZE=27 ;;
4759 AC_SUBST(ADDSECTION)
4760 AC_SUBST(TEMACS_POST_LINK)
4761 AC_SUBST(EMACS_HEAPSIZE)
4763 ## Common for all window systems
4764 if test "$window_system" != "none"; then
4765 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4766 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4769 AC_SUBST(WINDOW_SYSTEM_OBJ)
4771 AH_TOP([/* GNU Emacs site configuration template file.
4773 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4774 Free Software Foundation, Inc.
4776 This file is part of GNU Emacs.
4778 GNU Emacs is free software: you can redistribute it and/or modify
4779 it under the terms of the GNU General Public License as published by
4780 the Free Software Foundation, either version 3 of the License, or
4781 (at your option) any later version.
4783 GNU Emacs is distributed in the hope that it will be useful,
4784 but WITHOUT ANY WARRANTY; without even the implied warranty of
4785 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4786 GNU General Public License for more details.
4788 You should have received a copy of the GNU General Public License
4789 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4792 /* No code in Emacs #includes config.h twice, but some bits of code
4793 intended to work with other packages as well (like gmalloc.c)
4794 think they can include it as many times as they like. */
4795 #ifndef EMACS_CONFIG_H
4796 #define EMACS_CONFIG_H
4799 AH_BOTTOM([#include <conf_post.h>
4801 #endif /* EMACS_CONFIG_H */
4810 #### Report on what we decided to do.
4811 #### Report GTK as a toolkit, even if it doesn't use Xt.
4812 #### It makes printing result more understandable as using GTK sets
4813 #### toolkit_scroll_bars to yes by default.
4814 if test "${HAVE_GTK}" = "yes"; then
4815 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4818 if test $USE_ACL -ne 0; then
4819 acl_summary="yes $LIB_ACL"
4825 Configured for \`${canonical}'.
4827 Where should the build process find the source code? ${srcdir}
4828 What compiler should emacs be built with? ${CC} ${CFLAGS}
4829 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4830 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4831 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4832 What window system should Emacs use? ${window_system}
4833 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4835 if test -n "${x_includes}"; then
4836 echo " Where do we find X Windows header files? ${x_includes}"
4838 echo " Where do we find X Windows header files? Standard dirs"
4840 if test -n "${x_libraries}"; then
4841 echo " Where do we find X Windows libraries? ${x_libraries}"
4843 echo " Where do we find X Windows libraries? Standard dirs"
4846 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4847 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4848 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4849 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4850 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4851 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4852 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4853 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4855 echo " Does Emacs support sound? ${HAVE_SOUND}"
4857 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4858 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4859 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4860 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4861 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4862 echo " Does Emacs use access control lists? ${acl_summary}"
4863 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4864 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4865 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4867 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4868 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4869 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4870 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4871 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4873 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4876 if test -n "${EMACSDATA}"; then
4877 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4879 if test -n "${EMACSDOC}"; then
4880 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4885 if test "$HAVE_NS" = "yes"; then
4887 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4888 The installed application will go to nextstep/Emacs.app and can be
4889 run or moved from there."
4890 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4891 echo "The application will be fully self-contained."
4893 echo "The lisp resources for the application will be installed under ${prefix}.
4894 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4895 to run if these resources are not installed."
4900 if test "${opsys}" = "cygwin"; then
4902 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4908 # Remove any trailing slashes in these variables.
4909 [test "${prefix}" != NONE &&
4910 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4911 test "${exec_prefix}" != NONE &&
4912 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4914 if test "$HAVE_NS" = "yes"; then
4915 if test "$NS_IMPL_GNUSTEP" = yes; then
4916 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4917 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4918 ns_check_file=Resources/Info-gnustep.plist
4920 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4921 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4922 ns_check_file=Contents/Info.plist
4924 AC_SUBST(ns_check_file)
4927 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4928 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4929 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4930 dnl (else you get "no `Makefile.am' found for any configure output").
4931 dnl This will work, but you get a config.status that is not quite right
4932 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4933 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4934 dnl it seems better to just live with the duplication.
4935 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4937 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4938 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4939 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4940 leim/Makefile nextstep/Makefile nt/Makefile])
4942 dnl test/ is not present in release tarfiles.
4943 opt_makefile=test/automated/Makefile
4945 if test -f "$srcdir/$opt_makefile.in"; then
4946 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4947 dnl Again, it's best not to use a variable. Though you can add
4948 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4949 AC_CONFIG_FILES([test/automated/Makefile])
4953 dnl admin/ may or may not be present.
4954 opt_makefile=admin/unidata/Makefile
4956 if test -f "$srcdir/$opt_makefile.in"; then
4957 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4958 AC_CONFIG_FILES([admin/unidata/Makefile])
4962 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4964 AC_SUBST(SUBDIR_MAKEFILES_IN)
4966 dnl You might wonder (I did) why epaths.h is generated by running make,
4967 dnl rather than just letting configure generate it from epaths.in.
4968 dnl One reason is that the various paths are not fully expanded (see above);
4969 dnl eg gamedir=${prefix}/var/games/emacs.
4970 dnl Secondly, the GNU Coding standards require that one should be able
4971 dnl to run `make prefix=/some/where/else' and override the values set
4972 dnl by configure. This also explains the `move-if-change' test and
4973 dnl the use of force in the `epaths-force' rule in Makefile.in.
4974 AC_CONFIG_COMMANDS([src/epaths.h], [
4975 if test "${opsys}" = "mingw32"; then
4976 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4978 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4980 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4982 AC_CONFIG_COMMANDS([src/.gdbinit], [
4983 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4984 echo "source $srcdir/src/.gdbinit" > src/.gdbinit