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_NOCOMBRELOC="-Wl,-znocombreloc"
1033 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1036 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1038 AC_MSG_CHECKING([for -znocombreloc])
1039 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1040 [AC_MSG_RESULT(yes)],
1041 LDFLAGS_NOCOMBRELOC=
1042 [AC_MSG_RESULT(no)])
1044 LDFLAGS=$late_LDFLAGS
1046 dnl The function dump-emacs will not be defined and temacs will do
1047 dnl (load "loadup") automatically unless told otherwise.
1048 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1050 your-opsys-here) CANNOT_DUMP=yes ;;
1053 test "$CANNOT_DUMP" = "yes" && \
1054 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1056 AC_SUBST(CANNOT_DUMP)
1059 UNEXEC_OBJ=unexelf.o
1061 # MSDOS uses unexcoff.o
1063 UNEXEC_OBJ=unexaix.o
1069 UNEXEC_OBJ=unexmacosx.o
1072 UNEXEC_OBJ=unexhp9k800.o
1075 UNEXEC_OBJ=unexw32.o
1078 # Use the Solaris dldump() function, called from unexsol.c, to dump
1079 # emacs, instead of the generic ELF dump code found in unexelf.c.
1080 # The resulting binary has a complete symbol table, and is better
1081 # for debugging and other observability tools (debuggers, pstack, etc).
1083 # If you encounter a problem using dldump(), please consider sending
1084 # a message to the OpenSolaris tools-linking mailing list:
1085 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1087 # It is likely that dldump() works with older Solaris too, but this has
1088 # not been tested, so for now this change is for Solaris 10 or newer.
1089 UNEXEC_OBJ=unexsol.o
1096 ## Let `ld' find image libs and similar things in /usr/local/lib.
1097 ## The system compiler, GCC, has apparently been modified to not
1098 ## look there, contrary to what a stock GCC would do.
1099 ### It's not our place to do this. See bug#10313#17.
1100 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1105 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1106 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1110 ### It's not our place to do this. See bug#10313#17.
1111 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1116 ## Han Boetes <han@boetes.org> says this is necessary,
1117 ## otherwise Emacs dumps core on elf systems.
1118 LD_SWITCH_SYSTEM="-Z"
1121 AC_SUBST(LD_SWITCH_SYSTEM)
1123 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1125 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1126 ## which has not been defined yet. When this was handled with cpp,
1127 ## it was expanded to null when configure sourced the s/*.h file.
1128 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1129 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1130 ## (or somesuch), but because it is supposed to go at the _front_
1131 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1132 ## Compare with the gnu-linux case below, which added to the end
1133 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1134 ## LD_SWITCH_SYSTEM_TEMACS.
1137 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1144 AC_CHECK_DECL([__ELF__])
1145 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1146 ## With ELF, make sure that all common symbols get allocated to in the
1147 ## data section. Otherwise, the dump of temacs may miss variables in
1148 ## the shared library that have been initialized. For example, with
1149 ## GNU libc, __malloc_initialized would normally be resolved to the
1150 ## shared library's .bss section, which is fatal.
1151 if test "x$GCC" = "xyes"; then
1152 C_SWITCH_MACHINE="-fno-common"
1154 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1157 UNEXEC_OBJ=unexalpha.o
1161 AC_SUBST(C_SWITCH_MACHINE)
1163 AC_SUBST(UNEXEC_OBJ)
1166 ## Some programs in src produce warnings saying certain subprograms
1167 ## are too complex and need a MAXMEM value greater than 2000 for
1168 ## additional optimization. --nils@exp-math.uni-essen.de
1169 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1170 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1171 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1172 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1173 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1174 AC_SUBST(C_SWITCH_SYSTEM)
1179 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1180 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1182 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1184 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1186 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1188 ## Motif needs -lgen.
1189 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1192 AC_SUBST(LIBS_SYSTEM)
1194 ### Make sure subsequent tests use flags consistent with the build flags.
1196 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1197 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1199 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1202 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1203 AC_DEFUN([AC_TYPE_SIZE_T])
1204 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1205 AC_DEFUN([AC_TYPE_UID_T])
1209 dnl Current possibilities handled by sed (aix4-2 -> aix,
1210 dnl gnu-linux -> gnu/linux, etc.):
1211 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1212 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1213 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1220 ## Adding -lm confuses the dynamic linker, so omit it.
1223 freebsd | dragonfly )
1224 SYSTEM_TYPE=berkeley-unix
1226 gnu-linux | gnu-kfreebsd )
1228 hpux10-20 | hpux11 )
1232 SYSTEM_TYPE=windows-nt
1234 dnl NB this may be adjusted below.
1236 SYSTEM_TYPE=berkeley-unix
1240 SYSTEM_TYPE=usg-unix-v
1246 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1247 [The type of system you are compiling for; sets `system-type'.])
1250 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1251 pre_PKG_CONFIG_LIBS=$LIBS
1253 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1255 dnl This function definition taken from Gnome 2.0
1256 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1257 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1258 dnl also defines GSTUFF_PKG_ERRORS on error
1259 AC_DEFUN([PKG_CHECK_MODULES], [
1262 if test "$PKG_CONFIG" = "no" ; then
1263 ifelse([$4], , [AC_MSG_ERROR([
1264 *** 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])
1266 PKG_CONFIG_MIN_VERSION=0.9.0
1267 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1268 AC_MSG_CHECKING(for $2)
1270 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1271 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1272 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1279 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1280 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1281 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1287 ## If we have a custom action on failure, don't print errors, but
1288 ## do set a variable so people can do so. Do it in a subshell
1289 ## to capture any diagnostics in invoking pkg-config.
1290 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1291 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1297 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1298 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1302 if test $succeeded = yes; then
1303 ifelse([$3], , :, [$3])
1305 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.])], [$4])
1310 if test "${with_sound}" != "no"; then
1311 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1312 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1313 have_sound_header=yes, [], [
1315 #define WIN32_LEAN_AND_MEAN
1316 #include <windows.h>
1319 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1320 AC_MSG_ERROR([OSS sound support requested but not found.])
1322 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1323 # Emulation library used on NetBSD.
1324 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1325 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1326 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1327 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1328 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1332 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1334 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1335 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1336 if test $HAVE_ALSA = yes; then
1337 SAVE_CFLAGS="$CFLAGS"
1339 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1340 LIBS="$ALSA_LIBS $LIBS"
1341 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1342 emacs_alsa_normal=yes,
1343 emacs_alsa_normal=no)
1344 if test "$emacs_alsa_normal" != yes; then
1345 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1346 [[snd_lib_error_set_handler (0);]])],
1347 emacs_alsa_subdir=yes,
1348 emacs_alsa_subdir=no)
1349 if test "$emacs_alsa_subdir" != yes; then
1350 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1352 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1355 CFLAGS="$SAVE_CFLAGS"
1357 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1358 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1359 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1360 elif test "${with_sound}" = "alsa"; then
1361 AC_MSG_ERROR([ALSA sound support requested but not found.])
1363 fi dnl with_sound = alsa|yes
1365 dnl Define HAVE_SOUND if we have sound support. We know it works and
1366 dnl compiles only on the specified platforms. For others, it
1367 dnl probably doesn't make sense to try.
1368 dnl FIXME So surely we should bypass this whole section if not using
1369 dnl one of these platforms?
1370 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1372 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1373 dnl Adjust the --with-sound help text if you change this.
1374 gnu-linux|freebsd|netbsd|mingw32)
1375 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1381 AC_SUBST(CFLAGS_SOUND)
1384 dnl checks for header files
1385 AC_CHECK_HEADERS_ONCE(
1389 sys/utsname.h pwd.h utmp.h util.h)
1391 AC_MSG_CHECKING(if personality LINUX32 can be set)
1392 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1393 emacs_cv_personality_linux32=yes,
1394 emacs_cv_personality_linux32=no)
1395 AC_MSG_RESULT($emacs_cv_personality_linux32)
1397 if test $emacs_cv_personality_linux32 = yes; then
1398 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1399 [Define to 1 if personality LINUX32 can be set.])
1402 dnl On Solaris 8 there's a compilation warning for term.h because
1403 dnl it doesn't define `bool'.
1404 AC_CHECK_HEADERS(term.h, , , -)
1406 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1408 if test $ac_cv_have_decl_sys_siglist != yes; then
1409 # For Tru64, at least:
1410 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1415 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1416 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1417 #if HAVE_SYS_SOCKET_H
1418 #include <sys/socket.h>
1420 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1421 #if HAVE_SYS_SOCKET_H
1422 #include <sys/socket.h>
1424 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1425 #if HAVE_SYS_SOCKET_H
1426 #include <sys/socket.h>
1429 dnl checks for structure members
1430 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1431 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1432 struct ifreq.ifr_addr,
1433 struct ifreq.ifr_addr.sa_len], , ,
1434 [AC_INCLUDES_DEFAULT
1435 #if HAVE_SYS_SOCKET_H
1436 #include <sys/socket.h>
1442 dnl Check for endianness.
1443 dnl AC_C_BIGENDIAN is done by gnulib.
1445 dnl check for Make feature
1446 dnl AC_PROG_MAKE_SET is done by Automake.
1451 dnl check for GNU Make if we have GCC and autodepend is on.
1452 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1453 AC_MSG_CHECKING([whether we are using GNU Make])
1455 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1456 if test "x$testval" != x; then
1459 ac_enable_autodepend=no
1461 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1462 if test $HAVE_GNU_MAKE = yes; then
1463 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1464 SAVE_CFLAGS="$CFLAGS"
1465 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1466 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1467 CFLAGS="$SAVE_CFLAGS"
1468 test -f deps.d || ac_enable_autodepend=no
1470 AC_MSG_RESULT([$ac_enable_autodepend])
1472 if test $ac_enable_autodepend = yes; then
1473 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1474 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1475 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1476 deps_frag=autodeps.mk
1479 deps_frag=$srcdir/src/$deps_frag
1482 AC_SUBST_FILE(deps_frag)
1485 lisp_frag=$srcdir/src/lisp.mk
1486 AC_SUBST_FILE(lisp_frag)
1489 dnl checks for operating system services
1490 AC_SYS_LONG_FILE_NAMES
1492 #### Choose a window system.
1494 ## We leave window_system equal to none if
1495 ## we end up building without one. Any new window system should
1496 ## set window_system to an appropriate value and add objects to
1497 ## window-system-specific substs.
1501 if test "$no_x" != yes; then
1505 LD_SWITCH_X_SITE_RPATH=
1506 if test "${x_libraries}" != NONE; then
1507 if test -n "${x_libraries}"; then
1508 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1509 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1511 x_default_search_path=""
1512 x_search_path=${x_libraries}
1513 if test -z "${x_search_path}"; then
1514 x_search_path=/usr/lib
1516 for x_library in `echo ${x_search_path}: | \
1517 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1519 ${x_library}/X11/%L/%T/%N%C%S:\
1520 ${x_library}/X11/%l/%T/%N%C%S:\
1521 ${x_library}/X11/%T/%N%C%S:\
1522 ${x_library}/X11/%L/%T/%N%S:\
1523 ${x_library}/X11/%l/%T/%N%S:\
1524 ${x_library}/X11/%T/%N%S"
1525 if test x"${x_default_search_path}" = x; then
1526 x_default_search_path=${x_search_path}
1528 x_default_search_path="${x_search_path}:${x_default_search_path}"
1532 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1534 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1535 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1538 if test x"${x_includes}" = x; then
1539 bitmapdir=/usr/include/X11/bitmaps
1541 # accumulate include directories that have X11 bitmap subdirectories
1543 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1544 if test -d "${bmd}/X11/bitmaps"; then
1545 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1547 if test -d "${bmd}/bitmaps"; then
1548 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1551 if test ${bmd_acc} != "dummyval"; then
1552 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1559 tmp_CPPFLAGS="$CPPFLAGS"
1560 tmp_CFLAGS="$CFLAGS"
1561 CPPFLAGS="$CPPFLAGS -x objective-c"
1562 CFLAGS="$CFLAGS -x objective-c"
1565 if test "${with_ns}" != no; then
1566 if test "${opsys}" = darwin; then
1568 ns_appdir=`pwd`/nextstep/Emacs.app
1569 ns_appbindir=${ns_appdir}/Contents/MacOS
1570 ns_appresdir=${ns_appdir}/Contents/Resources
1571 ns_appsrc=Cocoa/Emacs.base
1572 elif test -f $GNUSTEP_CONFIG_FILE; then
1574 ns_appdir=`pwd`/nextstep/Emacs.app
1575 ns_appbindir=${ns_appdir}
1576 ns_appresdir=${ns_appdir}/Resources
1577 ns_appsrc=GNUstep/Emacs.base
1578 dnl FIXME sourcing this several times in subshells seems inefficient.
1579 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1580 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1581 dnl I seemed to need these as well with GNUstep-startup 0.25.
1582 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1583 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1584 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1585 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1586 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1587 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1588 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1589 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1590 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1591 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1592 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1593 dnl If they had chosen to either define it or not, we could have
1594 dnl just used AC_CHECK_DECL here.
1595 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1596 emacs_cv_objc_exceptions,
1597 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1598 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1602 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1603 if test $emacs_cv_objc_exceptions = yes; then
1604 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1605 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1606 [Define if GNUstep uses ObjC exceptions.])
1607 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1611 dnl This is only used while we test the NS headers, it gets reset below.
1612 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1614 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1615 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1616 files are missing or cannot be compiled.])])
1618 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1620 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1621 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1624 #error "OSX 10.4 or newer required"
1628 ns_osx_have_104=yes,
1630 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1632 ns_have_nsinteger=yes,
1633 ns_have_nsinteger=no)
1634 if test $ns_osx_have_104 = no; then
1635 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1637 if test $ns_have_nsinteger = yes; then
1638 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1642 AC_SUBST(LIBS_GNUSTEP)
1644 INSTALL_ARCH_INDEP_EXTRA=install-etc
1645 ns_self_contained=no
1648 if test "${HAVE_NS}" = yes; then
1649 if test "$with_toolkit_scroll_bars" = "no"; then
1650 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1653 window_system=nextstep
1654 # set up packaging dirs
1655 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1656 ns_self_contained=yes
1657 prefix=${ns_appresdir}
1658 exec_prefix=${ns_appbindir}
1659 dnl This one isn't really used, only archlibdir is.
1660 libexecdir="\${ns_appbindir}/libexec"
1661 archlibdir="\${ns_appbindir}/libexec"
1662 etcdocdir="\${ns_appresdir}/etc"
1663 etcdir="\${ns_appresdir}/etc"
1664 dnl FIXME maybe set datarootdir instead.
1665 dnl That would also get applications, icons, man.
1666 infodir="\${ns_appresdir}/info"
1667 mandir="\${ns_appresdir}/man"
1668 lispdir="\${ns_appresdir}/lisp"
1669 leimdir="\${ns_appresdir}/leim"
1670 INSTALL_ARCH_INDEP_EXTRA=
1672 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1674 CFLAGS="$tmp_CFLAGS"
1675 CPPFLAGS="$tmp_CPPFLAGS"
1676 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1677 AC_SUBST(ns_self_contained)
1679 AC_SUBST(NS_OBJC_OBJ)
1690 if test "${with_w32}" != no; then
1693 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1694 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1695 cannot be found.])])
1698 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1701 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1706 if test "${opsys}" = "mingw32"; then
1707 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1708 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1709 #include <windows.h>
1710 #include <usp10.h>]],
1711 [[PIMAGE_NT_HEADERS pHeader;
1712 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1713 [emacs_cv_w32api=yes
1716 AC_MSG_RESULT($emacs_cv_w32api)
1717 if test "${emacs_cv_w32api}" = "no"; then
1718 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1729 if test "${HAVE_W32}" = "yes"; then
1730 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1731 AC_CHECK_TOOL(WINDRES, [windres],
1732 [AC_MSG_ERROR([No resource compiler found.])])
1733 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1734 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1735 EMACSRES="emacs.res"
1736 case "$canonical" in
1737 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1738 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1740 UPDATE_MANIFEST=update-game-score.exe.manifest
1741 if test "${opsys}" = "cygwin"; then
1742 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1743 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1744 # Tell the linker that emacs.res is an object (which we compile from
1745 # the rc file), not a linker script.
1746 W32_RES_LINK="-Wl,emacs.res"
1748 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1749 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1750 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1751 W32_RES_LINK="\$(EMACSRES)"
1752 CLIENTRES="emacsclient.res"
1753 CLIENTW="emacsclientw\$(EXEEXT)"
1754 FIRSTFILE_OBJ=firstfile.o
1757 LIBS_ECLIENT="-lcomctl32"
1758 LIB_WSOCK32="-lwsock32"
1759 NTLIB="ntlib.$ac_objext"
1760 XARGS_LIMIT="-s 10000"
1766 AC_SUBST(EMACS_MANIFEST)
1767 AC_SUBST(UPDATE_MANIFEST)
1770 AC_SUBST(W32_RES_LINK)
1771 AC_SUBST(FIRSTFILE_OBJ)
1774 AC_SUBST(LIBS_ECLIENT)
1775 AC_SUBST(LIB_WSOCK32)
1777 AC_SUBST(XARGS_LIMIT)
1779 if test "${HAVE_W32}" = "yes"; then
1784 ## $window_system is now set to the window system we will
1787 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1788 # Too many warnings for now.
1790 nw="$nw -Wsuggest-attribute=const"
1791 nw="$nw -Wsuggest-attribute=noreturn"
1792 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1794 gl_WARN_ADD([-Wno-unused-variable])
1795 gl_WARN_ADD([-Wno-unused-but-set-variable])
1796 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1804 case "${window_system}" in
1809 case "${with_x_toolkit}" in
1810 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1811 motif ) USE_X_TOOLKIT=MOTIF ;;
1813 term_header=gtkutil.h
1814 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1815 dnl USE_X_TOOLKIT is set.
1816 USE_X_TOOLKIT=none ;;
1817 gtk2 ) with_gtk2=yes
1818 term_header=gtkutil.h
1819 USE_X_TOOLKIT=none ;;
1820 gtk3 ) with_gtk3=yes
1821 term_header=gtkutil.h
1822 USE_X_TOOLKIT=none ;;
1823 no ) USE_X_TOOLKIT=none ;;
1824 dnl If user did not say whether to use a toolkit, make this decision later:
1825 dnl use the toolkit if we have gtk, or X11R5 or newer.
1826 * ) USE_X_TOOLKIT=maybe ;;
1830 term_header=nsterm.h
1833 term_header=w32term.h
1837 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1838 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1839 if test "$HAVE_XSERVER" = true ||
1840 test -n "$DISPLAY" ||
1841 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1842 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1843 were found. You should install the relevant development files for X
1844 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1845 sure you have development files for image handling, i.e.
1846 tiff, gif, jpeg, png and xpm.
1847 If you are sure you want Emacs compiled without X window support, pass
1853 ### If we're using X11, we should use the X menu package.
1856 yes ) HAVE_MENUS=yes ;;
1859 # Does the opsystem file prohibit the use of the GNU malloc?
1860 # Assume not, until told otherwise.
1864 [whether malloc is Doug Lea style],
1865 [emacs_cv_var_doug_lea_malloc],
1868 [[#include <malloc.h>
1869 static void hook (void) {}]],
1870 [[malloc_set_state (malloc_get_state ());
1871 __after_morecore_hook = hook;
1872 __malloc_initialize_hook = hook;]])],
1873 [emacs_cv_var_doug_lea_malloc=yes],
1874 [emacs_cv_var_doug_lea_malloc=no])])
1875 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1878 dnl See comments in aix4-2.h about maybe using system malloc there.
1881 ## darwin ld insists on the use of malloc routines in the System framework.
1882 darwin|sol2-10) system_malloc=yes ;;
1885 if test "${system_malloc}" = "yes"; then
1886 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1889 (The GNU allocators don't work with this system configuration.)"
1893 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1894 VMLIMIT_OBJ=vm-limit.o
1896 AC_CHECK_HEADERS([sys/vlimit.h])
1897 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1900 [[extern char data_start[]; char ch;]],
1901 [[return data_start < &ch;]])],
1902 [emacs_cv_data_start=yes],
1903 [emacs_cv_data_start=no])])
1904 if test $emacs_cv_data_start = yes; then
1905 AC_DEFINE([HAVE_DATA_START], 1,
1906 [Define to 1 if data_start is the address of the start
1907 of the main data segment.])
1910 AC_SUBST(GMALLOC_OBJ)
1911 AC_SUBST(VMLIMIT_OBJ)
1913 if test "$doug_lea_malloc" = "yes" ; then
1914 if test "$GNU_MALLOC" = yes ; then
1916 (Using Doug Lea's new malloc from the GNU C Library.)"
1918 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1919 [Define to 1 if you are using the GNU C Library.])
1921 ## Use mmap directly for allocating larger buffers.
1922 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1923 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1924 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1926 gnu*) REL_ALLOC=no ;;
1930 if test x"${REL_ALLOC}" = x; then
1931 REL_ALLOC=${GNU_MALLOC}
1934 use_mmap_for_buffers=no
1936 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1940 if test $use_mmap_for_buffers = yes; then
1941 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1945 LIBS="$LIBS_SYSTEM $LIBS"
1947 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1948 AC_CHECK_LIB(dnet, dnet_ntoa)
1949 dnl This causes -lresolv to get used in subsequent tests,
1950 dnl which causes failures on some systems such as HPUX 9.
1951 dnl AC_CHECK_LIB(resolv, gethostbyname)
1953 dnl FIXME replace main with a function we actually want from this library.
1954 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1956 dnl Check if pthreads is available.
1958 AC_CHECK_HEADERS_ONCE(pthread.h)
1959 if test "$ac_cv_header_pthread_h"; then
1960 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1961 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1962 dnl testing for pthread_self if Emacs uses gmalloc.c.
1963 if test "$GMALLOC_OBJ" = gmalloc.o; then
1964 emacs_pthread_function=pthread_atfork
1966 emacs_pthread_function=pthread_self
1968 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1970 if test "$HAVE_PTHREAD" = yes; then
1971 case "${canonical}" in
1973 *) LIB_PTHREAD="-lpthread"
1974 LIBS="$LIB_PTHREAD $LIBS" ;;
1976 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1978 AC_SUBST([LIB_PTHREAD])
1980 AC_CHECK_LIB(pthreads, cma_open)
1982 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1983 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1984 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1985 ## added to LIBS in configure would never contain the pthreads part,
1986 ## but the value used in Makefiles might. FIXME?
1988 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1989 ## be harmless on older versions of X where it happens to exist.
1990 test "$opsys" = "aix4-2" && \
1991 test $ac_cv_lib_pthreads_cma_open = yes && \
1992 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1994 dnl Check for need for bigtoc support on IBM AIX
1998 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2000 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2001 *) gdb_cv_bigtoc=-bbigtoc ;;
2004 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2005 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2010 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
2011 # used for the tests that follow. We set them back to REAL_CFLAGS and
2012 # REAL_CPPFLAGS later on.
2014 REAL_CFLAGS="$CFLAGS"
2015 REAL_CPPFLAGS="$CPPFLAGS"
2017 if test "${HAVE_X11}" = "yes"; then
2018 DEFS="$C_SWITCH_X_SITE $DEFS"
2019 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2021 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2022 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2024 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2025 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2026 # but it's more convenient here to set LD_RUN_PATH since this
2027 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2028 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2029 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2033 if test "${opsys}" = "gnu-linux"; then
2034 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2035 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2036 [[XOpenDisplay ("foo");]])],
2037 [xgnu_linux_first_failure=no],
2038 [xgnu_linux_first_failure=yes])
2039 if test "${xgnu_linux_first_failure}" = "yes"; then
2040 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2041 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2042 OLD_CPPFLAGS="$CPPFLAGS"
2044 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2045 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2046 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2047 LIBS="$LIBS -b i486-linuxaout"
2048 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2049 [[XOpenDisplay ("foo");]])],
2050 [xgnu_linux_second_failure=no],
2051 [xgnu_linux_second_failure=yes])
2052 if test "${xgnu_linux_second_failure}" = "yes"; then
2053 # If we get the same failure with -b, there is no use adding -b.
2054 # So take it out. This plays safe.
2055 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2056 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2057 CPPFLAGS="$OLD_CPPFLAGS"
2068 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2069 # header files included from there.
2070 AC_MSG_CHECKING(for Xkb)
2071 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2072 #include <X11/XKBlib.h>]],
2073 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2074 emacs_xkb=yes, emacs_xkb=no)
2075 AC_MSG_RESULT($emacs_xkb)
2076 if test $emacs_xkb = yes; then
2077 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2080 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2081 XScreenNumberOfScreen)
2084 if test "${window_system}" = "x11"; then
2085 AC_MSG_CHECKING(X11 version 6)
2086 AC_CACHE_VAL(emacs_cv_x11_version_6,
2087 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2088 [[#if XlibSpecificationRelease < 6
2091 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2092 if test $emacs_cv_x11_version_6 = yes; then
2093 AC_MSG_RESULT(6 or newer)
2094 AC_DEFINE(HAVE_X11R6, 1,
2095 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2096 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2097 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2101 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2102 [Define if you have usable X11R6-style XIM support.])
2106 AC_MSG_RESULT(before 6)
2111 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2113 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2114 if test "${with_rsvg}" != "no"; then
2115 RSVG_REQUIRED=2.11.0
2116 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2118 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2119 AC_SUBST(RSVG_CFLAGS)
2122 if test $HAVE_RSVG = yes; then
2123 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2124 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2125 LIBS="$RSVG_LIBS $LIBS"
2131 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2132 if test "${with_imagemagick}" != "no"; then
2133 ## 6.2.8 is the earliest version known to work, but earlier versions
2134 ## might work - let us know if you find one.
2135 ## 6.0.7 does not work. See bug#7955.
2136 ## 6.8.2 makes Emacs crash; see Bug#13867.
2137 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2138 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2139 AC_SUBST(IMAGEMAGICK_CFLAGS)
2140 AC_SUBST(IMAGEMAGICK_LIBS)
2142 if test $HAVE_IMAGEMAGICK = yes; then
2143 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2144 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2145 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2146 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2154 gtk_term_header=$term_header
2157 if test "${opsys}" != "mingw32"; then
2158 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2161 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2163 dnl Checks for libraries.
2164 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2165 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2166 AC_MSG_ERROR($GTK_PKG_ERRORS)
2168 if test "$pkg_check_gtk" = "yes"; then
2169 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2170 GTK_OBJ=emacsgtkfixed.o
2171 gtk_term_header=gtkutil.h
2172 USE_GTK_TOOLKIT="GTK3"
2173 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2174 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2175 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2179 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2183 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2186 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2188 dnl Checks for libraries.
2189 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2190 if test "$pkg_check_gtk" = "no" &&
2191 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2193 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2195 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2199 if test x"$pkg_check_gtk" = xyes; then
2201 AC_SUBST(GTK_CFLAGS)
2203 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2204 CFLAGS="$CFLAGS $GTK_CFLAGS"
2205 LIBS="$GTK_LIBS $LIBS"
2206 dnl Try to compile a simple GTK program.
2207 AC_MSG_CHECKING([whether GTK compiles])
2211 [[/* Check the Gtk and Glib APIs. */
2212 #include <gtk/gtk.h>
2213 #include <glib-object.h>
2215 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2219 GtkSettings *gs = 0;
2220 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2221 strict C prohibits this. Use gtk_main_iteration to test that the
2222 libraries are there. */
2223 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2224 0, 0, 0, G_CALLBACK (callback), 0))
2225 gtk_main_iteration ();
2228 AC_MSG_RESULT([$GTK_COMPILES])
2229 if test "${GTK_COMPILES}" != "yes"; then
2231 if test "$USE_X_TOOLKIT" != "maybe"; then
2232 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2236 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2237 GTK_OBJ="gtkutil.o $GTK_OBJ"
2238 term_header=$gtk_term_header
2240 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2243 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2244 closing open displays. This is no problem if you just use
2245 one display, but if you use more than one and close one of them
2255 if test "${HAVE_GTK}" = "yes"; then
2257 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2258 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2259 if test "$with_toolkit_scroll_bars" != no; then
2260 with_toolkit_scroll_bars=yes
2263 dnl Check if we have the old file selection dialog declared and
2264 dnl in the link library. In 2.x it may be in the library,
2265 dnl but not declared if deprecated featured has been selected out.
2266 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2267 HAVE_GTK_FILE_SELECTION=no
2268 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2269 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2270 #include <gtk/gtk.h>])
2271 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2272 AC_CHECK_FUNCS(gtk_file_selection_new)
2275 dnl Same as above for gtk_handle_box.
2276 HAVE_GTK_HANDLE_BOX=no
2277 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2278 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2279 #include <gtk/gtk.h>])
2280 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2281 AC_CHECK_FUNCS(gtk_handle_box_new)
2284 dnl Same as above for gtk_tearoff_menu_item.
2285 HAVE_GTK_TEAROFF_MENU_ITEM=no
2286 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2287 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2288 #include <gtk/gtk.h>])
2289 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2290 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2293 dnl Check for functions introduced in 2.14 and later.
2294 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2295 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2296 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2297 gtk_orientable_set_orientation \
2298 gtk_window_set_has_resize_grip)
2300 term_header=gtkutil.h
2303 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2304 dnl other platforms.
2307 if test "${with_dbus}" = "yes"; then
2308 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2309 if test "$HAVE_DBUS" = yes; then
2310 LIBS="$LIBS $DBUS_LIBS"
2311 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2312 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2313 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2315 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2316 dbus_type_is_valid \
2317 dbus_validate_bus_name \
2318 dbus_validate_path \
2319 dbus_validate_interface \
2320 dbus_validate_member)
2326 dnl GSettings has been tested under GNU/Linux only.
2328 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2329 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2330 if test "$HAVE_GSETTINGS" = "yes"; then
2331 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2332 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2333 SETTINGS_LIBS="$GSETTINGS_LIBS"
2337 dnl GConf has been tested under GNU/Linux only.
2338 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2340 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2341 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2342 if test "$HAVE_GCONF" = yes; then
2343 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2344 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2345 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2346 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2350 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2351 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2352 if test "$HAVE_GOBJECT" = "yes"; then
2353 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2354 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2356 SAVE_CFLAGS="$CFLAGS"
2358 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2359 LIBS="$SETTINGS_LIBS $LIBS"
2360 AC_CHECK_FUNCS([g_type_init])
2361 CFLAGS="$SAVE_CFLAGS"
2364 AC_SUBST(SETTINGS_CFLAGS)
2365 AC_SUBST(SETTINGS_LIBS)
2368 dnl SELinux is available for GNU/Linux only.
2371 if test "${with_selinux}" = "yes"; then
2372 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2373 if test "$HAVE_LIBSELINUX" = yes; then
2374 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2375 LIBSELINUX_LIBS=-lselinux
2378 AC_SUBST(LIBSELINUX_LIBS)
2381 if test "${with_gnutls}" = "yes" ; then
2382 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2383 if test "${HAVE_GNUTLS}" = "yes"; then
2384 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2387 # Windows loads GnuTLS dynamically
2388 if test "${opsys}" = "mingw32"; then
2391 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2392 LIBS="$LIBGNUTLS_LIBS $LIBS"
2396 AC_SUBST(LIBGNUTLS_LIBS)
2397 AC_SUBST(LIBGNUTLS_CFLAGS)
2402 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2403 dnl a particular library. This doesn't make much sense?
2404 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2405 with_file_notification=no
2408 dnl MS Windows native file monitor is available for mingw32 only.
2409 case $with_file_notification,$opsys in
2410 w32,* | yes,mingw32)
2411 AC_CHECK_HEADER(windows.h)
2412 if test "$ac_cv_header_windows_h" = yes ; then
2413 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2414 NOTIFY_OBJ=w32notify.o
2415 NOTIFY_SUMMARY="yes (w32)"
2419 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2420 dnl has been added in glib 2.24. It has been tested under
2421 dnl GNU/Linux only. We take precedence over inotify, but this makes
2422 dnl only sense when glib has been compiled with inotify support. How
2424 case $with_file_notification,$NOTIFY_OBJ in
2426 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2427 if test "$HAVE_GFILENOTIFY" = "yes"; then
2428 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2429 NOTIFY_OBJ=gfilenotify.o
2430 NOTIFY_SUMMARY="yes -lgio (gfile)"
2434 dnl inotify is only available on GNU/Linux.
2435 case $with_file_notification,$NOTIFY_OBJ in
2437 AC_CHECK_HEADER(sys/inotify.h)
2438 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2439 AC_CHECK_FUNC(inotify_init1)
2440 if test "$ac_cv_func_inotify_init1" = yes; then
2441 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2442 NOTIFY_OBJ=inotify.o
2443 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2448 case $with_file_notification,$NOTIFY_OBJ in
2449 yes,* | no,* | *,?*) ;;
2450 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2453 if test -n "$NOTIFY_OBJ"; then
2454 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2456 AC_SUBST(NOTIFY_OBJ)
2457 AC_SUBST(GFILENOTIFY_CFLAGS)
2458 AC_SUBST(GFILENOTIFY_LIBS)
2460 dnl Do not put whitespace before the #include statements below.
2461 dnl Older compilers (eg sunos4 cc) choke on it.
2464 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2465 if test "$with_xaw3d" != no; then
2466 AC_CACHE_VAL(emacs_cv_xaw3d,
2467 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2468 #include <X11/Intrinsic.h>
2469 #include <X11/Xaw3d/Simple.h>]],
2471 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2472 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2473 emacs_cv_xaw3d=no)])
2477 if test $emacs_cv_xaw3d = yes; then
2478 AC_MSG_CHECKING(for xaw3d)
2479 AC_MSG_RESULT([yes; using Lucid toolkit])
2483 AC_DEFINE(HAVE_XAW3D, 1,
2484 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2486 AC_MSG_CHECKING(for xaw3d)
2488 AC_MSG_CHECKING(for libXaw)
2489 AC_CACHE_VAL(emacs_cv_xaw,
2490 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2491 #include <X11/Intrinsic.h>
2492 #include <X11/Xaw/Simple.h>]],
2496 if test $emacs_cv_xaw = yes; then
2497 AC_MSG_RESULT([yes; using Lucid toolkit])
2500 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2501 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2503 AC_MSG_ERROR([No X toolkit could be found.
2504 If you are sure you want Emacs compiled without an X toolkit, pass
2506 to configure. Otherwise, install the development libraries for the toolkit
2507 that you want to use (e.g. Gtk+) and re-run configure.])
2512 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2515 if test "${USE_X_TOOLKIT}" != "none"; then
2516 AC_MSG_CHECKING(X11 toolkit version)
2517 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2518 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2519 [[#if XtSpecificationRelease < 6
2522 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2523 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2524 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2525 AC_MSG_RESULT(6 or newer)
2526 AC_DEFINE(HAVE_X11XTR6, 1,
2527 [Define to 1 if you have the X11R6 or newer version of Xt.])
2528 LIBXTR6="-lSM -lICE"
2530 ## Use libw.a along with X11R6 Xt.
2531 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2534 AC_MSG_RESULT(before 6)
2537 dnl If using toolkit, check whether libXmu.a exists.
2538 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2540 if test x$HAVE_X11XTR6 = xyes; then
2541 LIBS="-lXt -lSM -lICE $LIBS"
2545 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2546 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2547 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2551 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2552 dnl Why not just test for libxmu in the normal way?
2555 ## These systems don't supply Xmu.
2557 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2565 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2566 if test "${HAVE_X11}" = "yes"; then
2567 if test "${USE_X_TOOLKIT}" != "none"; then
2568 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2573 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2574 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2575 if test -d /usr/include/openmotif; then
2576 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2577 emacs_cv_openmotif=yes
2578 case "$canonical" in
2579 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2580 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2583 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2586 emacs_cv_openmotif=no
2588 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2589 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2590 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2593 Motif version prior to 2.1.
2595 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2596 if test $emacs_cv_motif_version_2_1 = yes; then
2597 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2598 if test x$emacs_cv_openmotif = xyes; then
2599 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2602 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2603 # We put this in CFLAGS temporarily to precede other -I options
2604 # that might be in CFLAGS temporarily.
2605 # We put this in CPPFLAGS where it precedes the other -I options.
2606 OLD_CPPFLAGS=$CPPFLAGS
2608 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2609 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2610 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2612 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2613 if test $emacs_cv_lesstif = yes; then
2614 # Make sure this -I option remains in CPPFLAGS after it is set
2615 # back to REAL_CPPFLAGS.
2616 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2617 # have those other -I options anyway. Ultimately, having this
2618 # directory ultimately in CPPFLAGS will be enough.
2619 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2620 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2623 CPPFLAGS=$OLD_CPPFLAGS
2626 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2627 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2630 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2631 dnl using Motif or Xaw3d is available, and unless
2632 dnl --with-toolkit-scroll-bars=no was specified.
2634 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2635 [Define to 1 if we should use toolkit scroll bars.])dnl
2636 USE_TOOLKIT_SCROLL_BARS=no
2637 if test "${with_toolkit_scroll_bars}" != "no"; then
2638 if test "${USE_X_TOOLKIT}" != "none"; then
2639 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2640 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2642 USE_TOOLKIT_SCROLL_BARS=yes
2643 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2644 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2645 USE_TOOLKIT_SCROLL_BARS=yes
2647 elif test "${HAVE_GTK}" = "yes"; then
2648 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2649 USE_TOOLKIT_SCROLL_BARS=yes
2650 elif test "${HAVE_NS}" = "yes"; then
2651 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2652 USE_TOOLKIT_SCROLL_BARS=yes
2653 elif test "${HAVE_W32}" = "yes"; then
2654 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2655 USE_TOOLKIT_SCROLL_BARS=yes
2659 dnl See if XIM is available.
2660 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2661 #include <X11/Xlib.h>
2662 #include <X11/Xresource.h>]],
2663 [[XIMProc callback;]])],
2665 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2668 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2670 if test "${with_xim}" != "no"; then
2671 AC_DEFINE(USE_XIM, 1,
2672 [Define to 1 if we should use XIM, if it is available.])
2676 if test "${HAVE_XIM}" != "no"; then
2678 if test "$GCC" = yes; then
2679 CFLAGS="$CFLAGS --pedantic-errors"
2681 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2682 #include <X11/Xlib.h>
2683 #include <X11/Xresource.h>]],
2689 XPointer *client_data;
2691 /* If we're not using GCC, it's probably not XFree86, and this is
2692 probably right, but we can't use something like --pedantic-errors. */
2693 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2694 char*, XIMProc, XPointer*);
2696 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2698 [emacs_cv_arg6_star=yes])
2699 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2700 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2701 either XPointer or XPointer*.])dnl
2702 if test "$emacs_cv_arg6_star" = yes; then
2703 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2705 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2710 ### Start of font-backend (under any platform) section.
2711 # (nothing here yet -- this is a placeholder)
2712 ### End of font-backend (under any platform) section.
2714 ### Start of font-backend (under X11) section.
2715 if test "${HAVE_X11}" = "yes"; then
2716 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2718 ## Use -lXft if available, unless `--with-xft=no'.
2720 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2723 if test "x${with_xft}" != "xno"; then
2725 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2726 ## Because xftfont.c uses XRenderQueryExtension, we also
2727 ## need to link to -lXrender.
2729 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2730 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2731 OLD_CPPFLAGS="$CPPFLAGS"
2732 OLD_CFLAGS="$CFLAGS"
2734 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2735 CFLAGS="$CFLAGS $XFT_CFLAGS"
2736 XFT_LIBS="-lXrender $XFT_LIBS"
2737 LIBS="$XFT_LIBS $LIBS"
2738 AC_CHECK_HEADER(X11/Xft/Xft.h,
2739 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2740 [[#include <X11/X.h>]])
2742 if test "${HAVE_XFT}" = "yes"; then
2743 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2745 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2747 CPPFLAGS="$OLD_CPPFLAGS"
2748 CFLAGS="$OLD_CFLAGS"
2750 fi # "${HAVE_XFT}" = "yes"
2751 fi # "$HAVE_XFT" != no
2752 fi # "x${with_xft}" != "xno"
2754 ## We used to allow building with FreeType and without Xft.
2755 ## However, the ftx font backend driver is not in good shape.
2756 if test "$HAVE_XFT" != "yes"; then
2757 dnl For the "Does Emacs use" message at the end.
2761 dnl Strict linkers fail with
2762 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2763 dnl if -lfreetype is not specified.
2764 dnl The following is needed to set FREETYPE_LIBS.
2765 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2768 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2772 if test "${HAVE_FREETYPE}" = "yes"; then
2773 AC_DEFINE(HAVE_FREETYPE, 1,
2774 [Define to 1 if using the freetype and fontconfig libraries.])
2775 if test "${with_libotf}" != "no"; then
2776 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2778 if test "$HAVE_LIBOTF" = "yes"; then
2779 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2780 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2781 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2782 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2783 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2784 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2785 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2789 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2790 dnl Does the new font backend require it, or can it work without it?
2794 if test "${HAVE_LIBOTF}" = yes; then
2795 if test "${with_m17n_flt}" != "no"; then
2796 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2797 if test "$HAVE_M17N_FLT" = "yes"; then
2798 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2809 ### End of font-backend (under X11) section.
2811 AC_SUBST(FREETYPE_CFLAGS)
2812 AC_SUBST(FREETYPE_LIBS)
2813 AC_SUBST(FONTCONFIG_CFLAGS)
2814 AC_SUBST(FONTCONFIG_LIBS)
2815 AC_SUBST(LIBOTF_CFLAGS)
2816 AC_SUBST(LIBOTF_LIBS)
2817 AC_SUBST(M17N_FLT_CFLAGS)
2818 AC_SUBST(M17N_FLT_LIBS)
2820 ### Use -lXpm if available, unless `--with-xpm=no'.
2821 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2824 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2825 if test "${with_xpm}" != "no"; then
2826 SAVE_CPPFLAGS="$CPPFLAGS"
2827 SAVE_LDFLAGS="$LDFLAGS"
2828 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2829 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2830 AC_CHECK_HEADER(X11/xpm.h,
2831 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2832 if test "${HAVE_XPM}" = "yes"; then
2833 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2834 AC_EGREP_CPP(no_return_alloc_pixels,
2835 [#include "X11/xpm.h"
2836 #ifndef XpmReturnAllocPixels
2837 no_return_alloc_pixels
2839 ], HAVE_XPM=no, HAVE_XPM=yes)
2841 if test "${HAVE_XPM}" = "yes"; then
2842 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2846 CPPFLAGS="$SAVE_CPPFLAGS"
2847 LDFLAGS="$SAVE_LDFLAGS"
2852 if test "${HAVE_XPM}" = "yes"; then
2853 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2858 if test "${HAVE_X11}" = "yes"; then
2859 if test "${with_xpm}" != "no"; then
2860 AC_CHECK_HEADER(X11/xpm.h,
2861 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2862 if test "${HAVE_XPM}" = "yes"; then
2863 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2864 AC_EGREP_CPP(no_return_alloc_pixels,
2865 [#include "X11/xpm.h"
2866 #ifndef XpmReturnAllocPixels
2867 no_return_alloc_pixels
2869 ], HAVE_XPM=no, HAVE_XPM=yes)
2871 if test "${HAVE_XPM}" = "yes"; then
2879 if test "${HAVE_XPM}" = "yes"; then
2880 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2885 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2886 ### slightly different requirements wrt image libraries (it doesn't
2887 ### use -lXpm because it loads the xpm shared library dynamically at
2889 if test "${opsys}" = "mingw32"; then
2890 if test "${with_xpm}" != "no"; then
2891 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2895 if test "${HAVE_XPM}" = "yes"; then
2896 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2902 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2903 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2906 if test "${opsys}" = "mingw32"; then
2907 if test "${with_jpeg}" != "no"; then
2908 dnl Checking for jpeglib.h can lose because of a redefinition of
2910 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2912 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2913 if test "${HAVE_JPEG}" = "yes"; then
2914 AC_DEFINE(HAVE_JPEG)
2915 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2916 [#include <jpeglib.h>
2917 version=JPEG_LIB_VERSION
2919 [AC_DEFINE(HAVE_JPEG)],
2920 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2923 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2924 if test "${with_jpeg}" != "no"; then
2925 dnl Checking for jpeglib.h can lose because of a redefinition of
2927 AC_CHECK_HEADER(jerror.h,
2928 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2931 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2932 if test "${HAVE_JPEG}" = "yes"; then
2933 AC_DEFINE(HAVE_JPEG)
2934 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2935 [#include <jpeglib.h>
2936 version=JPEG_LIB_VERSION
2938 [AC_DEFINE(HAVE_JPEG)],
2939 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2942 if test "${HAVE_JPEG}" = "yes"; then
2948 ### Use -lpng if available, unless `--with-png=no'.
2949 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2952 if test "${opsys}" = "mingw32"; then
2953 if test "${with_png}" != "no"; then
2954 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2956 if test "${HAVE_PNG}" = "yes"; then
2957 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2959 AC_CHECK_DECL(png_longjmp,
2961 [AC_DEFINE(PNG_DEPSTRUCT, [],
2962 [Define to empty to suppress deprecation warnings when building
2963 with --enable-gcc-warnings and with libpng versions before 1.5,
2964 which lack png_longjmp.])],
2965 [[#ifdef HAVE_LIBPNG_PNG_H
2966 # include <libpng/png.h>
2972 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2973 if test "${with_png}" != "no"; then
2974 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2975 # in /usr/include/libpng.
2976 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2977 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2978 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2982 if test "${HAVE_PNG}" = "yes"; then
2983 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2984 LIBPNG="-lpng -lz -lm"
2986 AC_CHECK_DECL(png_longjmp,
2988 [AC_DEFINE(PNG_DEPSTRUCT, [],
2989 [Define to empty to suppress deprecation warnings when building
2990 with --enable-gcc-warnings and with libpng versions before 1.5,
2991 which lack png_longjmp.])],
2992 [[#ifdef HAVE_LIBPNG_PNG_H
2993 # include <libpng/png.h>
3004 if test "${with_zlib}" != "no"; then
3006 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3008 case $ac_cv_search_inflateEnd in
3009 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3012 if test "${HAVE_ZLIB}" = "yes"; then
3013 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3014 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3015 if test "${opsys}" = "mingw32"; then
3022 ### Use -ltiff if available, unless `--with-tiff=no'.
3023 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3026 if test "${opsys}" = "mingw32"; then
3027 if test "${with_tiff}" != "no"; then
3028 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3030 if test "${HAVE_TIFF}" = "yes"; then
3031 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3033 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3034 if test "${with_tiff}" != "no"; then
3035 AC_CHECK_HEADER(tiffio.h,
3037 # At least one tiff package requires the jpeg library.
3038 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3039 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3042 if test "${HAVE_TIFF}" = "yes"; then
3043 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3044 dnl FIXME -lz -lm, as per libpng?
3050 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3051 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3054 if test "${opsys}" = "mingw32"; then
3055 if test "${with_gif}" != "no"; then
3056 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3058 if test "${HAVE_GIF}" = "yes"; then
3059 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3061 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3062 || test "${HAVE_W32}" = "yes"; then
3063 AC_CHECK_HEADER(gif_lib.h,
3064 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3065 # Earlier versions can crash Emacs.
3066 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3068 if test "$HAVE_GIF" = yes; then
3070 elif test "$HAVE_GIF" = maybe; then
3071 # If gif_lib.h but no libgif, try libungif.
3072 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3073 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3076 if test "${HAVE_GIF}" = "yes"; then
3077 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3082 dnl Check for required libraries.
3083 if test "${HAVE_X11}" = "yes"; then
3086 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3087 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3088 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3089 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3090 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3091 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3092 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3093 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3094 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3095 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3097 if test "X${MISSING}" != X; then
3098 AC_MSG_ERROR([The following required libraries were not found:
3100 Maybe some development libraries/packages are missing?
3101 If you don't want to link with them give
3103 as options to configure])
3107 ### Use -lgpm if available, unless `--with-gpm=no'.
3110 if test "${with_gpm}" != "no"; then
3111 AC_CHECK_HEADER(gpm.h,
3112 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3114 if test "${HAVE_GPM}" = "yes"; then
3115 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3121 dnl Check for malloc/malloc.h on darwin
3122 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3125 ### Use NeXTstep API to implement GUI.
3126 if test "${HAVE_NS}" = "yes"; then
3127 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3128 if test "${NS_IMPL_COCOA}" = "yes"; then
3129 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3131 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3132 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3133 # See also .m.o rule in Makefile.in */
3134 # FIXME: are all these flags really needed? Document here why. */
3135 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3136 ## Extra CFLAGS applied to src/*.m files.
3137 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3139 # We also have mouse menus.
3144 if test "${HAVE_W32}" = "yes"; then
3148 ### Use session management (-lSM -lICE) if available
3151 if test "${HAVE_X11}" = "yes"; then
3152 AC_CHECK_HEADER(X11/SM/SMlib.h,
3153 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3155 if test "${HAVE_X_SM}" = "yes"; then
3156 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3160 *) LIBS="$LIBXSM $LIBS" ;;
3166 ### Use XRandr (-lXrandr) if available
3168 if test "${HAVE_X11}" = "yes"; then
3169 XRANDR_REQUIRED=1.2.2
3170 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3171 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3172 if test $HAVE_XRANDR = no; then
3173 # Test old way in case pkg-config doesn't have it (older machines).
3174 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3175 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3176 if test $HAVE_XRANDR = yes; then
3177 XRANDR_LIBS=-lXrandr
3178 AC_SUBST(XRANDR_LIBS)
3181 if test $HAVE_XRANDR = yes; then
3182 SAVE_CFLAGS="$CFLAGS"
3184 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3185 LIBS="$XRANDR_LIBS $LIBS"
3186 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3187 CFLAGS="$SAVE_CFLAGS"
3190 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3194 ### Use Xinerama (-lXinerama) if available
3196 if test "${HAVE_X11}" = "yes"; then
3197 XINERAMA_REQUIRED=1.0.2
3198 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3199 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3201 if test $HAVE_XINERAMA = no; then
3202 # Test old way in case pkg-config doesn't have it (older machines).
3203 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3204 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3205 if test $HAVE_XINERAMA = yes; then
3206 XINERAMA_LIBS=-lXinerama
3207 AC_SUBST(XINERAMA_LIBS)
3210 if test $HAVE_XINERAMA = yes; then
3211 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3216 ### Use libxml (-lxml2) if available
3217 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3219 if test "${with_xml2}" != "no"; then
3220 ### I'm not sure what the version number should be, so I just guessed.
3221 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3222 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3223 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3224 SAVE_CPPFLAGS="$CPPFLAGS"
3225 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3226 AC_CHECK_HEADER(libxml/HTMLparser.h,
3227 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3228 [#include <libxml/HTMLparser.h>])])
3229 CPPFLAGS="$SAVE_CPPFLAGS"
3230 if test "${HAVE_LIBXML2}" = "yes"; then
3231 LIBXML2_LIBS="-lxml2"
3232 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3235 if test "${HAVE_LIBXML2}" = "yes"; then
3236 if test "${opsys}" != "mingw32"; then
3237 LIBS="$LIBXML2_LIBS $LIBS"
3238 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3242 if test "${HAVE_LIBXML2}" = "yes"; then
3243 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3250 AC_SUBST(LIBXML2_LIBS)
3251 AC_SUBST(LIBXML2_CFLAGS)
3253 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3254 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3255 if test "${opsys}" = "mingw32"; then
3256 emacs_cv_netdb_declares_h_errno=yes
3258 AC_CACHE_CHECK(whether netdb declares h_errno,
3259 emacs_cv_netdb_declares_h_errno,
3260 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3261 [[return h_errno;]])],
3262 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3263 if test $emacs_cv_netdb_declares_h_errno = yes; then
3264 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3267 # sqrt and other floating-point functions such as fmod and frexp
3268 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3269 if test "${opsys}" != "mingw32"; then
3270 AC_CHECK_LIB(m, sqrt)
3273 # Check for mail-locking functions in a "mail" library. Probably this should
3274 # have the same check as for liblockfile below.
3275 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3276 if test $have_mail = yes; then
3278 LIBS="$LIBS_MAIL $LIBS"
3279 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3283 dnl Debian, at least:
3284 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3285 if test $have_lockfile = yes; then
3286 LIBS_MAIL=-llockfile
3287 LIBS="$LIBS_MAIL $LIBS"
3288 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3290 # If we have the shared liblockfile, assume we must use it for mail
3291 # locking (e.g. Debian). If we couldn't link against liblockfile
3292 # (no liblockfile.a installed), ensure that we don't need to.
3293 dnl This works for files generally, not just executables.
3294 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3295 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3296 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3297 if test $ac_cv_prog_liblockfile = yes; then
3298 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3299 This probably means that movemail could lose mail.
3300 There may be a `development' package to install containing liblockfile.])
3303 AC_CHECK_HEADERS_ONCE(maillock.h)
3306 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3307 ## interlock access to the mail spool. The alternative is a lock file named
3308 ## /usr/spool/mail/$USER.lock.
3311 aix4-2) mail_lock="lockf" ;;
3313 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3315 ## On GNU/Linux systems, both methods are used by various mail programs.
3316 ## I assume most people are using newer mailers that have heard of flock.
3317 ## Change this if you need to.
3318 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3319 ## configure gets the right answers, and that means *NOT* using flock.
3320 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3321 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3322 ## Debian maintainer hasn't provided a clean fix for Emacs.
3323 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3324 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3325 ## correct logic. -- fx
3326 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3327 ## liblockfile is a Free Software replacement for libmail, used on
3328 ## Debian systems and elsewhere. -rfr.
3331 if test $have_mail = yes || test $have_lockfile = yes; then
3332 test $ac_cv_header_maillock_h = yes && mail_lock=no
3337 mail_lock="none-needed" ;;
3341 case "$mail_lock" in
3342 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3344 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3348 *) BLESSMAIL_TARGET="need-blessmail" ;;
3350 AC_SUBST(BLESSMAIL_TARGET)
3353 AC_CHECK_FUNCS(accept4 gethostname \
3354 getrusage get_current_dir_name \
3356 select getpagesize setlocale \
3357 getrlimit setrlimit shutdown getaddrinfo \
3358 strsignal setitimer \
3359 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3360 gai_strerror getline getdelim sync \
3361 difftime posix_memalign \
3362 getpwent endpwent getgrent endgrent \
3364 cfmakeraw cfsetspeed copysign __executable_start log2)
3366 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3367 ## has a broken `rint' in some library versions including math library
3368 ## version number A.09.05.
3369 ## You can fix the math library by installing patch number PHSS_4630.
3370 ## But we can fix it more reliably for Emacs by just not using rint.
3371 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3374 *) AC_CHECK_FUNCS(random rint) ;;
3377 dnl Cannot use AC_CHECK_FUNCS
3378 AC_CACHE_CHECK([for __builtin_unwind_init],
3379 emacs_cv_func___builtin_unwind_init,
3380 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3381 emacs_cv_func___builtin_unwind_init=yes,
3382 emacs_cv_func___builtin_unwind_init=no)])
3383 if test $emacs_cv_func___builtin_unwind_init = yes; then
3384 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3385 [Define to 1 if you have the `__builtin_unwind_init' function.])
3388 AC_CHECK_HEADERS_ONCE(sys/un.h)
3393 AC_CHECK_FUNCS(grantpt)
3395 # PTY-related GNU extensions.
3396 AC_CHECK_FUNCS(getpt posix_openpt)
3398 # Check this now, so that we will NOT find the above functions in ncurses.
3399 # That is because we have not set up to link ncurses in lib-src.
3400 # It's better to believe a function is not available
3401 # than to expect to find it in ncurses.
3402 # Also we need tputs and friends to be able to build at all.
3403 AC_MSG_CHECKING([for library containing tputs])
3404 # Run a test program that contains a call to tputs, a call that is
3405 # never executed. This tests whether a pre-'main' dynamic linker
3406 # works with the library. It's too much trouble to actually call
3407 # tputs in the test program, due to portability hassles. When
3408 # cross-compiling, assume the test program will run if it links.
3409 AC_DEFUN([tputs_link_source], [
3411 [[extern void tputs (const char *, int, int (*)(int));
3412 int main (int argc, char **argv)
3415 tputs (argv[0], 0, 0);
3419 if test "${opsys}" = "mingw32"; then
3422 # Maybe curses should be tried earlier?
3423 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3424 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3426 if test -z "$tputs_library"; then
3430 LIBS_TERMCAP=-l$tputs_library
3432 LIBS="$LIBS_TERMCAP $LIBS"
3434 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3435 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3437 if test "X$msg" != Xno; then
3442 AC_MSG_RESULT([$msg])
3443 if test "X$msg" = Xno; then
3444 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3445 The following libraries were tried (in order):
3446 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3447 Please try installing whichever of these libraries is most appropriate
3448 for your system, together with its header files.
3449 For example, a libncurses-dev(el) or similar package.])
3452 ## Use termcap instead of terminfo?
3453 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3455 ## FIXME? In the cases below where we unconditionally set
3456 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3457 ## if that was found above to have tputs.
3458 ## Should we use the gnu* logic everywhere?
3460 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3461 ## The ncurses library has been moved out of the System framework in
3462 ## Mac OS X 10.2. So if configure detects it, set the command-line
3463 ## option to use it.
3464 darwin) LIBS_TERMCAP="-lncurses" ;;
3466 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3469 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3470 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3471 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3472 [[#if __FreeBSD_version < 400000
3475 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3477 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3479 if test $emacs_cv_freebsd_terminfo = yes; then
3480 LIBS_TERMCAP="-lncurses"
3483 LIBS_TERMCAP="-ltermcap"
3493 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3495 LIBS_TERMCAP="-ltermcap"
3499 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3501 ## hpux: Make sure we get select from libc rather than from libcurses
3502 ## because libcurses on HPUX 10.10 has a broken version of select.
3503 ## We used to use -lc -lcurses, but this may be cleaner.
3504 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3505 # set that way, now it uses the default). Isn't this a contradiction?
3506 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3510 TERMCAP_OBJ=tparam.o
3511 if test $TERMINFO = yes; then
3512 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3513 TERMCAP_OBJ=terminfo.o
3515 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3516 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3518 AC_SUBST(LIBS_TERMCAP)
3519 AC_SUBST(TERMCAP_OBJ)
3522 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3523 # On Darwin, res_init appears not to be useful: see bug#562 and
3524 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3527 if test $opsys != darwin; then
3529 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3530 #include <arpa/nameser.h>
3531 #include <resolv.h>]],
3532 [[return res_init();]])],
3533 have_res_init=yes, have_res_init=no)
3534 if test "$have_res_init" = no; then
3536 LIBS="$LIBS -lresolv"
3537 AC_MSG_CHECKING(for res_init with -lresolv)
3538 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3539 #include <arpa/nameser.h>
3540 #include <resolv.h>]],
3541 [[return res_init();]])],
3542 have_res_init=yes, have_res_init=no)
3543 AC_MSG_RESULT($have_res_init)
3544 if test "$have_res_init" = yes ; then
3550 if test "$have_res_init" = yes; then
3551 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3555 # Do we need the Hesiod library to provide the support routines?
3556 dnl FIXME? Should we be skipping this on Darwin too?
3558 if test "$with_hesiod" != no ; then
3559 # Don't set $LIBS here -- see comments above. FIXME which comments?
3560 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3561 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3562 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3563 if test "$resolv" = yes ; then
3568 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3569 hesiod=yes, :, $RESOLVLIB)])
3571 if test x"$hesiod" = xyes; then
3577 # Do we need libresolv (due to res_init or Hesiod)?
3578 if test "$resolv" = yes && test $opsys != darwin; then
3585 # These tell us which Kerberos-related libraries to use.
3592 if test "${with_kerberos}" != no; then
3593 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3594 if test $have_com_err = yes; then
3595 COM_ERRLIB=-lcom_err
3596 LIBS="$COM_ERRLIB $LIBS"
3598 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3599 if test $have_crypto = yes; then
3601 LIBS="$CRYPTOLIB $LIBS"
3603 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3604 if test $have_k5crypto = yes; then
3605 CRYPTOLIB=-lk5crypto
3606 LIBS="$CRYPTOLIB $LIBS"
3608 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3609 if test $have_krb5=yes; then
3611 LIBS="$KRB5LIB $LIBS"
3613 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3614 if test "${with_kerberos5}" = no; then
3615 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3616 if test $have_des425 = yes; then
3618 LIBS="$DESLIB $LIBS"
3620 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3621 if test $have_des = yes; then
3623 LIBS="$DESLIB $LIBS"
3626 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3627 if test $have_krb4 = yes; then
3629 LIBS="$KRB4LIB $LIBS"
3631 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3632 if test $have_krb = yes; then
3634 LIBS="$KRB4LIB $LIBS"
3639 if test "${with_kerberos5}" != no; then
3640 AC_CHECK_HEADERS(krb5.h,
3641 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3642 [#include <krb5.h>])])
3644 AC_CHECK_HEADERS(krb.h,,
3645 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3646 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3648 AC_CHECK_HEADERS(com_err.h)
3651 AC_SUBST(COM_ERRLIB)
3657 AC_CHECK_FUNCS_ONCE(tzset)
3658 AC_MSG_CHECKING(whether localtime caches TZ)
3659 AC_CACHE_VAL(emacs_cv_localtime_cache,
3660 [if test x$ac_cv_func_tzset = xyes; then
3661 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3662 char TZ_GMT0[] = "TZ=GMT0";
3663 char TZ_PST8[] = "TZ=PST8";
3666 time_t now = time ((time_t *) 0);
3667 int hour_GMT0, hour_unset;
3668 if (putenv (TZ_GMT0) != 0)
3670 hour_GMT0 = localtime (&now)->tm_hour;
3672 hour_unset = localtime (&now)->tm_hour;
3673 if (putenv (TZ_PST8) != 0)
3675 if (localtime (&now)->tm_hour == hour_GMT0)
3678 if (localtime (&now)->tm_hour != hour_unset)
3681 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3682 [# If we have tzset, assume the worst when cross-compiling.
3683 emacs_cv_localtime_cache=yes])
3685 # If we lack tzset, report that localtime does not cache TZ,
3686 # since we can't invalidate the cache if we don't have tzset.
3687 emacs_cv_localtime_cache=no
3689 AC_MSG_RESULT($emacs_cv_localtime_cache)
3690 if test $emacs_cv_localtime_cache = yes; then
3691 AC_DEFINE(LOCALTIME_CACHE, 1,
3692 [Define to 1 if localtime caches TZ.])
3696 AC_CHECK_FUNC(socket, , ok_so_far=no)
3697 if test $ok_so_far = yes; then
3698 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3700 if test $ok_so_far = yes; then
3701 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3703 if test $ok_so_far = yes; then
3704 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3705 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3706 [Define to 1 if you have inet sockets.])
3709 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3710 dnl This can be removed once we assume Autoconf 2.70.
3712 *-solaris2.4 | *-solaris2.4.*)
3713 dnl Disable the Autoconf-generated vfork test.
3714 : ${ac_cv_func_vfork_works=no};;
3719 AC_CHECK_FUNCS(snprintf)
3721 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3724 AC_MSG_CHECKING([whether GLib is linked in])
3725 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3728 [[g_print ("Hello world");]])],
3731 AC_MSG_RESULT([$links_glib])
3732 if test "${links_glib}" = "yes"; then
3733 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3734 if test "$HAVE_NS" = no;then
3740 dnl Adapted from Haible's version.
3741 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3742 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3743 [[char* cs = nl_langinfo(CODESET);]])],
3744 emacs_cv_langinfo_codeset=yes,
3745 emacs_cv_langinfo_codeset=no)
3747 if test $emacs_cv_langinfo_codeset = yes; then
3748 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3749 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3754 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3755 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3756 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3757 if test "$emacs_cv_c_restrict_arr" = yes; then
3758 AC_DEFINE(__restrict_arr, __restrict,
3759 [Define to compiler's equivalent of C99 restrict keyword in array
3760 declarations. Define as empty for no equivalent.])
3763 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3764 dnl how the tty code is related to POSIX and/or other versions of termios.
3765 dnl The following looks like a useful start.
3767 dnl AC_SYS_POSIX_TERMIOS
3768 dnl if test $ac_cv_sys_posix_termios = yes; then
3769 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3770 dnl and macros for terminal control.])
3771 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3774 dnl Turned on June 1996 supposing nobody will mind it.
3775 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3776 if test "${opsys}" != "mingw32"; then
3777 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3778 in the full name stands for the login id.])
3781 dnl Every platform that uses configure supports this.
3782 dnl There is a create-lockfiles option you can
3783 dnl customize if you do not want the lock files to be written.
3784 dnl So it is not clear that this #define still needs to exist.
3785 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3786 so that Emacs can tell instantly when you try to modify a file that
3787 someone else has modified in his/her Emacs.])
3789 dnl Everybody supports this, except MS.
3790 dnl Seems like the kind of thing we should be testing for, though.
3791 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3792 if test "${opsys}" != "mingw32"; then
3793 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3796 dnl Everybody supports this, except MS-DOS.
3797 dnl Seems like the kind of thing we should be testing for, though.
3798 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3799 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3800 4.2-compatible sockets.])
3802 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3804 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3805 a null file, or a data sink.])
3806 if test "${opsys}" = "mingw32"; then
3807 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3809 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3812 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3813 if test "${opsys}" = "mingw32"; then
3814 AC_DEFINE(SEPCHAR, [';'])
3816 AC_DEFINE(SEPCHAR, [':'])
3819 dnl Everybody supports this, except MS-DOS.
3820 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3822 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3825 AC_DEFINE(DIRECTORY_SEP, ['/'],
3826 [Character that separates directories in a file name.])
3828 if test "${opsys}" = "mingw32"; then
3829 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3830 [Returns true if character is a device separator.])
3832 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3833 [Returns true if character is a directory separator.])
3835 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3836 [Returns true if character is any form of separator.])
3838 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3839 [Returns true if character is a device separator.])
3841 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3842 [Returns true if character is a directory separator.])
3844 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3845 [Returns true if character is any form of separator.])
3848 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3852 dnl Unfortunately without libXmu we cannot support EditRes.
3853 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3854 AC_DEFINE(NO_EDITRES, 1)
3859 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3860 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3861 AC_DEFINE(NO_EDITRES, 1)
3867 irix6-5 | sol2* | unixware )
3868 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3869 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3870 dnl need the constant to dimension an array. So wire in the appropriate
3872 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3876 emacs_broken_SIGIO=no
3879 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3880 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3881 hpux* | irix6-5 | openbsd | sol2* | unixware )
3882 emacs_broken_SIGIO=yes
3886 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3887 dnl the way this system works, libc functions that return malloced
3888 dnl memory use the libc malloc implementation. Calling xfree or
3889 dnl xrealloc on the results of such functions results in a crash.
3891 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3892 dnl but that does not currently work on this system.
3894 dnl It is possible to completely override the malloc implementation on
3895 dnl AIX, but that involves putting the malloc functions in a shared
3896 dnl library and setting the MALLOCTYPE environment variable to point to
3897 dnl that shared library.
3899 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3900 dnl to avoid a crash just use the Emacs implementation for that function.
3902 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3903 dnl of this file, so that we do not check for get_current_dir_name
3904 dnl on AIX. But that might be fragile if something else ends
3905 dnl up testing for get_current_dir_name as a dependency.
3906 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3907 get_current_dir_name should not be used.])
3911 dnl Circumvent a bug in FreeBSD. In the following sequence of
3912 dnl writes/reads on a PTY, read(2) returns bogus data:
3914 dnl write(2) 1022 bytes
3915 dnl write(2) 954 bytes, get EAGAIN
3916 dnl read(2) 1024 bytes in process_read_output
3917 dnl read(2) 11 bytes in process_read_output
3919 dnl That is, read(2) returns more bytes than have ever been written
3920 dnl successfully. The 1033 bytes read are the 1022 bytes written
3921 dnl successfully after processing (for example with CRs added if the
3922 dnl terminal is set up that way which it is here). The same bytes will
3923 dnl be seen again in a later read(2), without the CRs.
3924 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3925 work around an issue when reading from a PTY.])
3931 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3932 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3937 darwin | dragonfly | freebsd | netbsd | openbsd )
3938 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3939 close a pty to make it a controlling terminal (it is already a
3940 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3944 dnl FIXME Surely we can test for this rather than hard-code it.
3946 netbsd | openbsd) sound_device="/dev/audio" ;;
3947 *) sound_device="/dev/dsp" ;;
3951 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3952 [Name of the default sound device.])
3955 dnl Emacs can read input using SIGIO and buffering characters itself,
3956 dnl or using CBREAK mode and making C-g cause SIGINT.
3957 dnl The choice is controlled by the variable interrupt_input.
3959 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3961 dnl Emacs uses the presence of the USABLE_SIGIO macro
3962 dnl to indicate whether or not signal-driven I/O is possible. It uses
3963 dnl INTERRUPT_INPUT to decide whether to use it by default.
3965 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3966 dnl CBREAK mode has two disadvantages
3967 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3968 dnl I hear that in system V this problem does not exist.
3969 dnl 2) Control-G causes output to be discarded.
3970 dnl I do not know whether this can be fixed in system V.
3972 dnl Another method of doing input is planned but not implemented.
3973 dnl It would have Emacs fork off a separate process
3974 dnl to read the input and send it to the true Emacs process
3977 darwin | gnu-linux | gnu-kfreebsd )
3978 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3983 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3984 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3985 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3986 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3987 dnl taking float or double parameters.
3989 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3990 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3991 file defines `NeedWidePrototypes' as `NO'.])
3996 dnl Used in process.c, this must be a loop, even if it only runs once.
3997 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3998 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3999 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4000 dnl trying suffixes 0-16.
4001 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4002 first PTY, if PTYs are supported.])
4003 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4004 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4005 end of a PTY, if non-standard.])
4006 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4007 end of a PTY, if non-standard.])
4011 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4012 dnl You allocate a pty by opening /dev/ptc to get the master side.
4013 dnl To get the name of the slave side, you just ttyname() the master side.
4014 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4015 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4019 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4020 dnl multi-line AC_DEFINEs are hard. :(
4021 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)])
4022 AC_DEFINE(PTY_NAME_SPRINTF, [])
4023 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4026 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4028 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4029 dnl Not used, because PTY_ITERATION is defined.
4030 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4031 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4032 dnl But we don't have to block SIGCHLD because it is blocked in the
4033 dnl implementation of grantpt.
4034 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4035 AC_DEFINE(PTY_NAME_SPRINTF, [])
4036 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4040 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4043 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4045 if test "x$ac_cv_func_grantpt" = xyes; then
4046 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4047 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4048 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4049 dnl to prevent sigchld_handler from intercepting the child's death.
4050 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); }])
4051 dnl if HAVE_POSIX_OPENPT
4052 if test "x$ac_cv_func_posix_openpt" = xyes; then
4053 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4054 AC_DEFINE(PTY_NAME_SPRINTF, [])
4056 elif test "x$ac_cv_func_getpt" = xyes; then
4057 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4058 AC_DEFINE(PTY_NAME_SPRINTF, [])
4060 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4063 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4068 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4069 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4070 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4074 dnl It looks like this cannot be right, because it is not a loop.
4075 dnl However, process.c actually does this:
4081 dnl which presumably makes it OK, since irix == sgi (?).
4082 dnl FIXME it seems like this special treatment is unnecessary?
4083 dnl Why can't irix use a single-trip loop like eg cygwin?
4084 AC_DEFINE(PTY_ITERATION, [])
4085 dnl Not used, because PTY_ITERATION is defined.
4086 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4087 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); }])
4088 dnl No need to get the pty name at all.
4089 AC_DEFINE(PTY_NAME_SPRINTF, [])
4090 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4091 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4095 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4096 dnl from intercepting that death. If any child but grantpt's should die
4097 dnl within, it should be caught after sigrelse(2).
4098 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); }])
4102 dnl Comments are as per sol2*.
4103 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); }])
4110 dnl This change means that we don't loop through allocate_pty too
4111 dnl many times in the (rare) event of a failure.
4112 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4113 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4114 dnl Push various streams modules onto a PTY channel. Used in process.c.
4115 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.])
4120 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4121 "typing" a signal character on the pty.])
4124 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4125 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4126 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4127 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4130 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4131 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4132 gnu-linux | gnu-kfreebsd )
4134 AC_MSG_CHECKING([for signals via characters])
4135 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4136 #include <linux/version.h>
4137 #if LINUX_VERSION_CODE < 0x20400
4138 # error "Linux version too old"
4140 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4142 AC_MSG_RESULT([$emacs_signals_via_chars])
4143 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4148 dnl Used in lisp.h, emacs.c, vm-limit.c
4149 dnl NEWS.18 describes this as "a number which contains
4150 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4151 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4152 stored in a Lisp_Object.])
4153 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4157 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4158 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4161 dnl The data segment on this machine always starts at address 0x40000000.
4162 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4165 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4170 AH_TEMPLATE(TAB3, [Undocumented.])
4173 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4175 gnu | dragonfly | freebsd | netbsd | openbsd )
4176 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4177 AC_DEFINE(TAB3, OXTABS)
4180 gnu-linux | gnu-kfreebsd )
4181 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4185 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4186 [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)],
4187 [Mark a secondary stack, like the register stack on the ia64.]), [])
4191 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4192 run_time_remap; for HPUX.])
4197 dnl This won't be used automatically yet. We also need to know, at least,
4198 dnl that the stack is continuous.
4199 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4200 registers relevant for conservative garbage collection in the jmp_buf.])
4204 dnl Not all the architectures are tested, but there are Debian packages
4205 dnl for SCM and/or Guile on them, so the technique must work. See also
4206 dnl comments in alloc.c concerning setjmp and gcc.
4207 dnl Fixme: it's probably safe to just use the GCC conditional below.
4208 gnu-linux | gnu-kfreebsd )
4209 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4210 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4211 || defined __alpha__ || defined __mips__ || defined __s390__ \
4212 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4213 || defined __ia64__ || defined __sh__
4216 # error "setjmp not known to work on this arch"
4218 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4223 if test x$GCC = xyes; then
4224 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4225 AC_DEFINE(GC_SETJMP_WORKS, 1)
4228 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4229 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4230 AC_DEFINE(GC_SETJMP_WORKS, 1)
4235 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4236 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4239 [[#include <setjmp.h>
4241 # define _longjmp longjmp
4246 _longjmp (j, 1);]])],
4247 [emacs_cv_func__setjmp=yes],
4248 [emacs_cv_func__setjmp=no])])
4249 if test $emacs_cv_func__setjmp = yes; then
4250 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4252 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4255 [[#include <setjmp.h>
4258 if (! sigsetjmp (j, 1))
4259 siglongjmp (j, 1);]])],
4260 [emacs_cv_func_sigsetjmp=yes],
4261 [emacs_cv_func_sigsetjmp=no])])
4262 if test $emacs_cv_func_sigsetjmp = yes; then
4263 AC_DEFINE([HAVE_SIGSETJMP], 1,
4264 [Define to 1 if sigsetjmp and siglongjmp work.
4265 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4271 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4272 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4273 dnl and this is all we need.
4274 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4281 dnl Used in xfaces.c.
4282 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4283 some systems, where it requires time.h.])
4288 dnl Define symbols to identify the version of Unix this is.
4289 dnl Define all the symbols that apply correctly.
4290 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4291 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4292 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4293 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4298 dnl This symbol should be defined on AIX Version 3 ???????
4299 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4301 # error "_AIX not defined"
4303 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4307 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4311 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4312 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4313 dnl distinguish OS X from pure Darwin.
4314 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4317 gnu-linux | gnu-kfreebsd )
4319 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4324 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4329 AC_DEFINE(USG5_4, [])
4330 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4334 AC_DEFINE(DOS_NT, [])
4335 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4336 if test "x$ac_enable_checking" != "x" ; then
4337 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4343 AC_DEFINE(USG5_4, [])
4344 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4349 AC_DEFINE(USG5_4, [])
4353 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4356 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4357 emacs_cv_usable_FIONREAD=no
4361 emacs_cv_usable_FIONREAD=yes
4366 [AC_LANG_PROGRAM([[#include <sys/types.h>
4367 #include <sys/ioctl.h>
4369 # include <sys/filio.h>
4372 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4373 [emacs_cv_usable_FIONREAD=yes],
4374 [emacs_cv_usable_FIONREAD=no])
4377 if test $emacs_cv_usable_FIONREAD = yes; then
4378 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4380 if test $emacs_broken_SIGIO = no; then
4381 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4383 [AC_LANG_PROGRAM([[#include <fcntl.h>
4386 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4387 [emacs_cv_usable_SIGIO=yes],
4388 [emacs_cv_usable_SIGIO=no])],
4389 [emacs_cv_usable_SIGIO=yes],
4390 [emacs_cv_usable_SIGIO=no])
4391 if test $emacs_cv_usable_SIGIO = yes; then
4392 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4399 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4400 dnl and on Cygwin prior to version 1.7.24 that becomes the
4401 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4402 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4403 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4404 dnl needed starting with cygwin-1.7.24, and it is no longer
4405 dnl effective starting with glib-2.36. */
4407 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4408 G_SLICE environment variable to "always-malloc" at startup.])
4412 dnl It works to open the pty's tty in the parent (Emacs), then
4413 dnl close and reopen it in the child.
4414 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4415 works to open a pty's tty in the parent process, then close and
4416 reopen it in the child.])
4420 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4421 use VSUSP instead of VSWTCH.])
4425 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4430 # Set up the CFLAGS for real compilation, so we can substitute it.
4431 CFLAGS="$REAL_CFLAGS"
4432 CPPFLAGS="$REAL_CPPFLAGS"
4434 ## Hack to detect a buggy GCC version.
4435 if test "x$GCC" = xyes \
4436 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4437 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4438 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4439 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4442 version=$PACKAGE_VERSION
4444 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4445 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4446 [Short copyright string for this version of Emacs.])
4449 ### Specify what sort of things we'll be editing into Makefile and config.h.
4450 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4452 AC_SUBST(configuration)
4457 AC_SUBST(exec_prefix)
4460 AC_SUBST(sharedstatedir)
4461 AC_SUBST(libexecdir)
4466 AC_SUBST(standardlisppath)
4467 AC_SUBST(locallisppath)
4469 AC_SUBST(x_default_search_path)
4471 AC_SUBST(archlibdir)
4476 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4477 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4478 ## end of LIBX_BASE, but nothing ever set it.
4479 AC_SUBST(LD_SWITCH_X_SITE)
4480 AC_SUBST(C_SWITCH_X_SITE)
4481 AC_SUBST(GNUSTEP_CFLAGS)
4483 ## Used in lwlib/Makefile.in.
4484 AC_SUBST(X_TOOLKIT_TYPE)
4486 AC_SUBST(ns_appbindir)
4487 AC_SUBST(ns_appresdir)
4489 AC_SUBST(GNU_OBJC_CFLAGS)
4490 AC_SUBST(OTHER_FILES)
4492 if test -n "${term_header}"; then
4493 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4494 [Define to the header for the built-in window system.])
4497 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4498 [Define to the canonical Emacs configuration name.])
4499 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4500 [Define to the options passed to configure.])
4501 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4502 define this to include extra configuration information.])
4506 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4513 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4514 AC_DEFINE(HAVE_X_WINDOWS, 1,
4515 [Define to 1 if you want to use the X window system.])
4517 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4519 if test "$HAVE_XFT" = "yes"; then
4520 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4521 elif test "$HAVE_FREETYPE" = "yes"; then
4522 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4532 if test "${USE_X_TOOLKIT}" != "none" ; then
4534 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4535 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4536 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4537 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4538 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4542 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4543 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4547 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4548 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4549 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4553 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4554 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4557 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4560 AC_SUBST(WIDGET_OBJ)
4563 case "$USE_X_TOOLKIT" in
4564 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4565 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4566 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4568 AC_SUBST(TOOLKIT_LIBW)
4570 if test "${opsys}" != "mingw32"; then
4571 if test "$USE_X_TOOLKIT" = "none"; then
4572 LIBXT_OTHER="\$(LIBXSM)"
4573 OLDXMENU_TARGET="really-oldXMenu"
4575 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4576 OLDXMENU_TARGET="really-lwlib"
4579 AC_SUBST(LIBXT_OTHER)
4581 ## The X Menu stuff is present in the X10 distribution, but missing
4582 ## from X11. If we have X10, just use the installed library;
4583 ## otherwise, use our own copy.
4584 if test "${HAVE_X11}" = "yes" ; then
4585 AC_DEFINE(HAVE_X11, 1,
4586 [Define to 1 if you want to use version 11 of X windows.
4587 Otherwise, Emacs expects to use version 10.])
4589 if test "$USE_X_TOOLKIT" = "none"; then
4590 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4592 OLDXMENU="\${lwlibdir}/liblw.a"
4594 LIBXMENU="\$(OLDXMENU)"
4595 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4596 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4598 ## For a syntactically valid Makefile; not actually used for anything.
4599 ## See comments in src/Makefile.in.
4601 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4602 if test "${HAVE_X_WINDOWS}" = "yes"; then
4611 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4618 AC_SUBST(OLDXMENU_TARGET)
4621 AC_SUBST(LIBX_OTHER)
4622 AC_SUBST(OLDXMENU_DEPS)
4624 if test "${HAVE_MENUS}" = "yes" ; then
4625 AC_DEFINE(HAVE_MENUS, 1,
4626 [Define to 1 if you have mouse menus.
4627 (This is automatic if you use X, but the option to specify it remains.)
4628 It is also defined with other window systems that support xmenu.c.])
4631 if test "${GNU_MALLOC}" = "yes" ; then
4632 AC_DEFINE(GNU_MALLOC, 1,
4633 [Define to 1 if you want to use the GNU memory allocator.])
4637 if test "${REL_ALLOC}" = "yes" ; then
4638 AC_DEFINE(REL_ALLOC, 1,
4639 [Define REL_ALLOC if you want to use the relocating allocator for
4642 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4644 AC_SUBST(RALLOC_OBJ)
4646 if test "$opsys" = "cygwin"; then
4647 CYGWIN_OBJ="sheap.o cygw32.o"
4648 ## Cygwin differs because of its unexec().
4650 POST_ALLOC_OBJ=lastfile.o
4651 elif test "$opsys" = "mingw32"; then
4654 POST_ALLOC_OBJ=lastfile.o
4657 PRE_ALLOC_OBJ=lastfile.o
4660 AC_SUBST(CYGWIN_OBJ)
4661 AC_SUBST(PRE_ALLOC_OBJ)
4662 AC_SUBST(POST_ALLOC_OBJ)
4664 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4665 # it temporarily reverts them to their pre-pkg-config values,
4666 # because gnulib needs to work with both src (which uses the
4667 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4668 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4669 # and it therefore needs to run in an environment where LIBS does not
4670 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4671 # for some package unrelated to lib-src.
4674 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4675 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4676 gl_ASSERT_NO_GNULIB_POSIXCHECK
4677 gl_ASSERT_NO_GNULIB_TESTS
4682 if test "${opsys}" = "mingw32"; then
4683 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4684 # Remove unneeded switches from the value of CC that goes to Makefiles
4685 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4689 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4692 ## The -headerpad option tells ld (see man page) to leave room at the
4693 ## end of the header for adding load commands. Needed for dumping.
4694 ## 0x690 is the total size of 30 segment load commands (at 56
4695 ## each); under Cocoa 31 commands are required.
4696 if test "$HAVE_NS" = "yes"; then
4697 libs_nsgui="-framework AppKit"
4698 if test "$NS_IMPL_COCOA" = "yes"; then
4699 libs_nsgui="$libs_nsgui -framework IOKit"
4706 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4708 ## This is here because src/Makefile.in did some extra fiddling around
4709 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4710 ## LD_SWITCH_SYSTEM_TEMACS instead,
4711 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4712 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4715 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4716 ## find X at run-time.
4717 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4718 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4719 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4720 ## had different values in configure (in ac_link) and src/Makefile.in.
4721 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4722 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4725 ## MinGW64 does not prepend an underscore to symbols, so we must
4726 ## pass a different -entry switch to linker. FIXME: It is better
4727 ## to make the entry points the same by changing unexw32.c.
4728 case "$canonical" in
4729 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4730 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4734 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4736 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4739 if test x$ac_enable_profiling != x ; then
4741 *freebsd | gnu-linux) ;;
4742 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4746 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4748 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4750 ## MinGW-specific post-link processing of temacs.
4751 TEMACS_POST_LINK=":"
4754 if test "${opsys}" = "mingw32"; then
4755 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4756 ADDSECTION="../nt/addsection\$(EXEEXT)"
4757 ## Preload heap size of temacs.exe in MB.
4758 case "$canonical" in
4759 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4760 *) EMACS_HEAPSIZE=27 ;;
4764 AC_SUBST(ADDSECTION)
4765 AC_SUBST(TEMACS_POST_LINK)
4766 AC_SUBST(EMACS_HEAPSIZE)
4768 ## Common for all window systems
4769 if test "$window_system" != "none"; then
4770 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4771 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4774 AC_SUBST(WINDOW_SYSTEM_OBJ)
4776 AH_TOP([/* GNU Emacs site configuration template file.
4778 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4779 Free Software Foundation, Inc.
4781 This file is part of GNU Emacs.
4783 GNU Emacs is free software: you can redistribute it and/or modify
4784 it under the terms of the GNU General Public License as published by
4785 the Free Software Foundation, either version 3 of the License, or
4786 (at your option) any later version.
4788 GNU Emacs is distributed in the hope that it will be useful,
4789 but WITHOUT ANY WARRANTY; without even the implied warranty of
4790 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4791 GNU General Public License for more details.
4793 You should have received a copy of the GNU General Public License
4794 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4797 /* No code in Emacs #includes config.h twice, but some bits of code
4798 intended to work with other packages as well (like gmalloc.c)
4799 think they can include it as many times as they like. */
4800 #ifndef EMACS_CONFIG_H
4801 #define EMACS_CONFIG_H
4804 AH_BOTTOM([#include <conf_post.h>
4806 #endif /* EMACS_CONFIG_H */
4815 #### Report on what we decided to do.
4816 #### Report GTK as a toolkit, even if it doesn't use Xt.
4817 #### It makes printing result more understandable as using GTK sets
4818 #### toolkit_scroll_bars to yes by default.
4819 if test "${HAVE_GTK}" = "yes"; then
4820 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4823 if test $USE_ACL -ne 0; then
4824 acl_summary="yes $LIB_ACL"
4830 Configured for \`${canonical}'.
4832 Where should the build process find the source code? ${srcdir}
4833 What compiler should emacs be built with? ${CC} ${CFLAGS}
4834 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4835 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4836 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4837 What window system should Emacs use? ${window_system}
4838 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4840 if test -n "${x_includes}"; then
4841 echo " Where do we find X Windows header files? ${x_includes}"
4843 echo " Where do we find X Windows header files? Standard dirs"
4845 if test -n "${x_libraries}"; then
4846 echo " Where do we find X Windows libraries? ${x_libraries}"
4848 echo " Where do we find X Windows libraries? Standard dirs"
4851 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4852 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4853 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4854 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4855 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4856 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4857 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4858 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4860 echo " Does Emacs support sound? ${HAVE_SOUND}"
4862 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4863 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4864 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4865 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4866 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4867 echo " Does Emacs use access control lists? ${acl_summary}"
4868 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4869 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4870 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4872 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4873 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4874 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4875 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4876 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4878 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4881 if test -n "${EMACSDATA}"; then
4882 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4884 if test -n "${EMACSDOC}"; then
4885 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4890 if test "$HAVE_NS" = "yes"; then
4892 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4893 The installed application will go to nextstep/Emacs.app and can be
4894 run or moved from there."
4895 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4896 echo "The application will be fully self-contained."
4898 echo "The lisp resources for the application will be installed under ${prefix}.
4899 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4900 to run if these resources are not installed."
4905 if test "${opsys}" = "cygwin"; then
4907 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4913 # Remove any trailing slashes in these variables.
4914 [test "${prefix}" != NONE &&
4915 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4916 test "${exec_prefix}" != NONE &&
4917 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4919 if test "$HAVE_NS" = "yes"; then
4920 if test "$NS_IMPL_GNUSTEP" = yes; then
4921 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4922 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4923 ns_check_file=Resources/Info-gnustep.plist
4925 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4926 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4927 ns_check_file=Contents/Info.plist
4929 AC_SUBST(ns_check_file)
4932 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4933 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4934 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4935 dnl (else you get "no `Makefile.am' found for any configure output").
4936 dnl This will work, but you get a config.status that is not quite right
4937 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4938 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4939 dnl it seems better to just live with the duplication.
4940 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4942 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4943 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4944 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4945 leim/Makefile nextstep/Makefile nt/Makefile])
4947 dnl test/ is not present in release tarfiles.
4948 opt_makefile=test/automated/Makefile
4950 if test -f "$srcdir/$opt_makefile.in"; then
4951 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4952 dnl Again, it's best not to use a variable. Though you can add
4953 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4954 AC_CONFIG_FILES([test/automated/Makefile])
4958 dnl admin/ may or may not be present.
4959 opt_makefile=admin/unidata/Makefile
4961 if test -f "$srcdir/$opt_makefile.in"; then
4962 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4963 AC_CONFIG_FILES([admin/unidata/Makefile])
4967 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4969 AC_SUBST(SUBDIR_MAKEFILES_IN)
4971 dnl You might wonder (I did) why epaths.h is generated by running make,
4972 dnl rather than just letting configure generate it from epaths.in.
4973 dnl One reason is that the various paths are not fully expanded (see above);
4974 dnl eg gamedir=${prefix}/var/games/emacs.
4975 dnl Secondly, the GNU Coding standards require that one should be able
4976 dnl to run `make prefix=/some/where/else' and override the values set
4977 dnl by configure. This also explains the `move-if-change' test and
4978 dnl the use of force in the `epaths-force' rule in Makefile.in.
4979 AC_CONFIG_COMMANDS([src/epaths.h], [
4980 if test "${opsys}" = "mingw32"; then
4981 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4983 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4985 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4987 AC_CONFIG_COMMANDS([src/.gdbinit], [
4988 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4989 echo "source $srcdir/src/.gdbinit" > src/.gdbinit