1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2013 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 AC_INIT(emacs, 24.3.50)
27 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
28 dnl and then quoted again for a C string. Separate options with spaces.
29 dnl Add some environment variables, if they were passed via the environment
30 dnl rather than on the command-line.
33 dnl This is the documented way to record the args passed to configure,
34 dnl rather than $ac_configure_args.
35 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
37 -n | --no-create | --no-recursion)
39 CFLAGS | CPPFLAGS | LDFLAGS)
40 eval 'test "${'$opt'+set}" = set' || continue
42 *" $opt="*) continue ;;
44 eval opt=$opt=\$$opt ;;
47 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
49 *[["$emacs_shell_specials"]]*)
52 emacs_quote_apostrophes="s/'/'\\\\''/g"
53 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
58 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
59 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
62 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
66 AC_CONFIG_HEADER(src/config.h:src/config.in)
67 AC_CONFIG_SRCDIR(src/lisp.h)
68 AC_CONFIG_AUX_DIR(build-aux)
69 dnl Fairly arbitrary, older versions might work too.
70 AM_INIT_AUTOMAKE(1.11)
72 dnl Support for --program-prefix, --program-suffix and
73 dnl --program-transform-name options
76 dnl It is important that variables on the RHS not be expanded here,
77 dnl hence the single quotes. This is per the GNU coding standards, see
78 dnl (autoconf) Installation Directory Variables
79 dnl See also epaths.h below.
80 lispdir='${datadir}/emacs/${version}/lisp'
81 leimdir='${datadir}/emacs/${version}/leim'
82 standardlisppath='${lispdir}:${leimdir}'
83 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
84 '${datadir}/emacs/site-lisp'
85 lisppath='${locallisppath}:${standardlisppath}'
86 etcdir='${datadir}/emacs/${version}/etc'
87 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
88 etcdocdir='${datadir}/emacs/${version}/etc'
89 gamedir='${localstatedir}/games/emacs'
91 dnl Special option to disable the most of other options.
93 [AS_HELP_STRING([--without-all],
94 [omit almost all features and build
95 small executable with minimal dependencies])],
96 with_features=$withval,
99 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
100 dnl Create a new --with option that defaults to being disabled.
101 dnl NAME is the base name of the option. The shell variable with_NAME
102 dnl will be set to either the user's value (if the option is
103 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
104 dnl option is not specified). Note that the shell variable name is
105 dnl constructed as autoconf does, by replacing non-alphanumeric
106 dnl characters with "_".
107 dnl HELP-STRING is the help text for the option.
108 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
109 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
110 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
113 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
114 dnl Create a new --with option that defaults to $with_features.
115 dnl NAME is the base name of the option. The shell variable with_NAME
116 dnl will be set either to 'no' (for a plain --without-NAME) or to
117 dnl 'yes' (if the option is not specified). Note that the shell
118 dnl variable name is constructed as autoconf does, by replacing
119 dnl non-alphanumeric characters with "_".
120 dnl HELP-STRING is the help text for the option.
121 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
122 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
123 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
126 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
127 if test "$with_pop" = yes; then
128 AC_DEFINE(MAIL_USE_POP)
130 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
132 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
133 if test "$with_kerberos" != no; then
136 AH_TEMPLATE(KERBEROS,
137 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
139 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
140 if test "${with_kerberos5}" != no; then
141 if test "${with_kerberos}" = no; then
145 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
148 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
149 dnl FIXME hesiod support may not be present, so it seems like an error
150 dnl to define, or at least use, this unconditionally.
151 if test "$with_hesiod" != no; then
152 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
155 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
156 if test "$with_mmdf" != no; then
157 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
160 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
161 if test "$with_mail_unlink" != no; then
162 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
165 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
166 [string giving default POP mail host])],
167 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
169 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
170 [compile with sound support (VALUE one of: yes, ossaudio, alsa, no;
171 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
172 [ case "${withval}" in
173 yes|no|ossaudio|alsa) val=$withval ;;
174 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
175 this option's value should be `yes', `no', `ossaudio', or `alsa'.])
180 [with_sound=$with_features])
182 dnl FIXME currently it is not the last.
183 dnl This should be the last --with option, because --with-x is
184 dnl added later on when we find the file name of X, and it's best to
185 dnl keep them together visually.
186 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
187 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
188 [ case "${withval}" in
189 y | ye | yes ) val=gtk ;;
191 l | lu | luc | luci | lucid ) val=lucid ;;
192 a | at | ath | athe | athen | athena ) val=athena ;;
193 m | mo | mot | moti | motif ) val=motif ;;
194 g | gt | gtk ) val=gtk ;;
198 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
199 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
200 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
201 `athena' and `lucid' are synonyms.])
207 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
208 if test "$with_wide_int" = yes; then
209 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
212 dnl _ON results in a '--without' option in the --help output, so
213 dnl the help text should refer to "don't compile", etc.
214 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
215 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
216 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
217 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
218 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
219 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
220 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
221 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
223 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
224 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
225 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
227 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
228 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
229 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
230 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
231 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
233 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
234 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
235 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
236 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
237 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
238 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
239 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
240 OPTION_DEFAULT_ON([threads],[don't compile with elisp threading support])
242 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
243 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
244 [ case "${withval}" in
245 y | ye | yes ) val=yes ;;
247 g | gf | gfi | gfil | gfile ) val=gfile ;;
248 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
249 w | w3 | w32 ) val=w32 ;;
250 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
251 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
252 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
253 otherwise for the first of `gfile' or `inotify' that is usable.])
256 with_file_notification=$val
258 [with_file_notification=$with_features])
260 ## For the times when you want to build Emacs but don't have
261 ## a suitable makeinfo, and can live without the manuals.
262 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
263 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
265 ## Makefile.in needs the cache file name.
268 ## This is an option because I do not know if all info/man support
269 ## compressed files, nor how to test if they do so.
270 OPTION_DEFAULT_ON([compress-info],[don't compress the installed Info pages])
271 if test $with_compress_info = yes; then
278 AC_ARG_WITH([pkg-config-prog],dnl
279 [AS_HELP_STRING([--with-pkg-config-prog=FILENAME],
280 [file name of pkg-config for finding GTK and librsvg])])
281 if test "X${with_pkg_config_prog}" != X; then
282 if test "${with_pkg_config_prog}" != yes; then
283 PKG_CONFIG="${with_pkg_config_prog}"
287 AC_ARG_WITH(gameuser,dnl
288 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
289 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
290 && gameuser="${with_gameuser}"
291 test "X$gameuser" = X && gameuser=games
293 AC_ARG_WITH([gnustep-conf],dnl
294 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
295 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
296 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
297 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
298 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
299 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
301 AC_ARG_ENABLE(ns-self-contained,
302 [AS_HELP_STRING([--disable-ns-self-contained],
303 [disable self contained build under NeXTstep])],
304 EN_NS_SELF_CONTAINED=$enableval,
305 EN_NS_SELF_CONTAINED=yes)
307 AC_ARG_ENABLE(locallisppath,
308 [AS_HELP_STRING([--enable-locallisppath=PATH],
309 [directories Emacs should search for lisp files specific
311 if test "${enableval}" = "no"; then
313 elif test "${enableval}" != "yes"; then
314 locallisppath=${enableval}
317 AC_ARG_ENABLE(checking,
318 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
319 [enable expensive run-time checks. With LIST,
320 enable only specific categories of checks.
321 Categories are: all,yes,no.
322 Flags are: stringbytes, stringoverrun, stringfreelist,
323 xmallocoverrun, conslist, glyphs])],
324 [ac_checking_flags="${enableval}"],[])
325 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
326 for check in $ac_checking_flags
329 # these set all the flags to specific states
330 yes) ac_enable_checking=1 ;;
331 no) ac_enable_checking= ;
332 ac_gc_check_stringbytes= ;
333 ac_gc_check_string_overrun= ;
334 ac_gc_check_string_free_list= ;
335 ac_xmalloc_overrun= ;
336 ac_gc_check_cons_list= ;
338 all) ac_enable_checking=1 ;
339 ac_gc_check_stringbytes=1 ;
340 ac_gc_check_string_overrun=1 ;
341 ac_gc_check_string_free_list=1 ;
342 ac_xmalloc_overrun=1 ;
343 ac_gc_check_cons_list=1 ;
345 # these enable particular checks
346 stringbytes) ac_gc_check_stringbytes=1 ;;
347 stringoverrun) ac_gc_check_string_overrun=1 ;;
348 stringfreelist) ac_gc_check_string_free_list=1 ;;
349 xmallocoverrun) ac_xmalloc_overrun=1 ;;
350 conslist) ac_gc_check_cons_list=1 ;;
351 glyphs) ac_glyphs_debug=1 ;;
352 *) AC_MSG_ERROR(unknown check category $check) ;;
357 if test x$ac_enable_checking != x ; then
358 AC_DEFINE(ENABLE_CHECKING, 1,
359 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
361 if test x$ac_gc_check_stringbytes != x ; then
362 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
363 [Define this temporarily to hunt a bug. If defined, the size of
364 strings is redundantly recorded in sdata structures so that it can
365 be compared to the sizes recorded in Lisp strings.])
367 if test x$ac_gc_check_string_overrun != x ; then
368 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
369 [Define this to check for short string overrun.])
371 if test x$ac_gc_check_string_free_list != x ; then
372 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
373 [Define this to check the string free list.])
375 if test x$ac_xmalloc_overrun != x ; then
376 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
377 [Define this to check for malloc buffer overrun.])
379 if test x$ac_gc_check_cons_list != x ; then
380 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
381 [Define this to check for errors in cons list.])
383 if test x$ac_glyphs_debug != x ; then
384 AC_DEFINE(GLYPH_DEBUG, 1,
385 [Define this to enable glyphs debugging code.])
388 AC_ARG_ENABLE(check-lisp-object-type,
389 [AS_HELP_STRING([--enable-check-lisp-object-type],
390 [enable compile time checks for the Lisp_Object data type.
391 This is useful for development for catching certain types of bugs.])],
392 if test "${enableval}" != "no"; then
393 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
394 [Define this to enable compile time checks for the Lisp_Object data type.])
398 dnl The name of this option is unfortunate. It predates, and has no
399 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
400 dnl Actually, it stops it working.
401 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
402 AC_ARG_ENABLE(profiling,
403 [AS_HELP_STRING([--enable-profiling],
404 [build emacs with low-level, gprof profiling support.
405 Mainly useful for debugging Emacs itself. May not work on
406 all platforms. Stops profiler.el working.])],
407 [ac_enable_profiling="${enableval}"],[])
408 if test x$ac_enable_profiling != x ; then
409 PROFILING_CFLAGS="-DPROFILING=1 -pg"
413 AC_SUBST(PROFILING_CFLAGS)
415 AC_ARG_ENABLE(autodepend,
416 [AS_HELP_STRING([--enable-autodepend],
417 [automatically generate dependencies to .h-files.
418 Requires GNU Make and Gcc. Enabled if GNU Make and Gcc is
420 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
422 AC_ARG_ENABLE(gtk-deprecation-warnings,
423 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
424 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
425 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
427 #### Make srcdir absolute, if it isn't already. It's important to
428 #### avoid running the file name through pwd unnecessarily, since pwd can
429 #### give you automounter prefixes, which can go away. We do all this
430 #### so Emacs can find its files when run uninstalled.
431 ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
434 [[\\/]]* | ?:[[\\/]]*) ;;
436 ## We may be able to use the $PWD environment variable to make this
437 ## absolute. But sometimes PWD is inaccurate.
438 ## Note: we used to use $PWD at the end instead of `pwd`,
439 ## but that tested only for a well-formed and valid PWD,
440 ## it did not object when PWD was well-formed and valid but just wrong.
441 if test ".$PWD" != "." && test ".`(cd "$PWD" ; sh -c pwd)`" = ".`pwd`" ;
445 srcdir=`(cd "$srcdir"; pwd)`
448 * ) srcdir=`(cd "$srcdir"; pwd)` ;;
451 ### Canonicalize the configuration name.
455 configuration=${host_alias-${build_alias-$host}}
457 dnl This used to use changequote, but, apart from `changequote is evil'
458 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
459 dnl the great gob of text. Thus it's not processed for possible expansion.
460 dnl Just make sure the brackets remain balanced.
462 dnl Since Emacs can't find matching pairs of quotes, boundaries are
463 dnl indicated by comments.
467 ### If you add support for a new configuration, add code to this
468 ### switch statement to recognize your configuration name and select
469 ### the appropriate operating system file.
471 ### You would hope that you could choose an s/*.h
472 ### file based on the operating system portion. However, it turns out
473 ### that each s/*.h file is pretty manufacturer-specific.
474 ### So we basically have to have a special case for each
475 ### configuration name.
477 ### As far as handling version numbers on operating systems is
478 ### concerned, make sure things will fail in a fixable way. If
479 ### /etc/MACHINES doesn't say anything about version numbers, be
480 ### prepared to handle anything reasonably. If version numbers
481 ### matter, be sure /etc/MACHINES says something about it.
484 case "${canonical}" in
486 ## GNU/Linux and similar ports
501 ## FreeBSD kernel + glibc based userland
516 ## Apple Darwin / Mac OS X
518 case "${canonical}" in
525 ## Use fink packages if available.
526 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
527 ## if test -d /sw/include && test -d /sw/lib; then
528 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
529 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
538 ## HP 9000 series 700 and 800, running HP/UX
542 hppa*-hp-hpux1[1-9]* )
544 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
548 rs6000-ibm-aix4.[23]* )
551 powerpc-ibm-aix4.[23]* )
554 rs6000-ibm-aix[56]* )
557 powerpc-ibm-aix[56]* )
561 ## Silicon Graphics machines
565 # Without defining _LANGUAGE_C, things get masked out in the headers
566 # so that, for instance, grepping for `free' in stdlib.h fails and
567 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
568 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
573 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
574 | x86_64-*-solaris2* | x86_64-*-sunos5*)
575 case "${canonical}" in
577 amd64-*-*|x86_64-*-*) ;;
581 case "${canonical}" in
582 *-sunos5.6* | *-solaris2.6* )
586 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
588 emacs_check_sunpro_c=yes
590 *-sunos5* | *-solaris* )
592 emacs_check_sunpro_c=yes
595 ## Watch out for a compiler that we know will not work.
596 case "${canonical}" in
597 *-solaris* | *-sunos5* )
598 if [ "x$CC" = x/usr/ucb/cc ]; then
599 ## /usr/ucb/cc doesn't work;
600 ## we should find some other compiler that does work.
608 ## Intel 386 machines where we don't care about the manufacturer.
610 case "${canonical}" in
611 *-darwin* ) opsys=darwin ;;
614 # MinGW overrides and adds some system headers in nt/inc.
615 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
617 *-sysv4.2uw* ) opsys=unixware ;;
618 *-sysv5uw* ) opsys=unixware ;;
619 *-sysv5OpenUNIX* ) opsys=unixware ;;
620 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
629 ### If the code above didn't choose an operating system, just choose
630 ### an operating system based on the configuration name. You really
631 ### only want to use this when you have no idea what the right
632 ### operating system is; if you know what operating systems a machine
633 ### runs, it's cleaner to make it explicit in the case statement
635 if test x"${opsys}" = x; then
636 case "${canonical}" in
637 *-gnu* ) opsys=gnu ;;
647 if test $unported = yes; then
648 AC_MSG_ERROR([Emacs hasn't been ported to `${canonical}' systems.
649 Check `etc/MACHINES' for recognized configuration names.])
653 #### Choose a compiler.
655 dnl Sets GCC=yes if using gcc.
659 if test x$GCC = xyes; then
660 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
662 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
665 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
666 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
667 dnl that clash with MinGW.
668 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
670 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
671 # as we don't use them.
672 AC_DEFUN([gl_FCNTL_O_FLAGS])
673 # Avoid gnulib's threadlib module, as we do threads our own way.
674 AC_DEFUN([gl_THREADLIB])
676 # Initialize gnulib right after choosing the compiler.
677 dnl Amongst other things, this sets AR and ARFLAGS.
680 if test "$ac_test_CFLAGS" != set; then
681 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
682 # if -g3 works and the user does not specify CFLAGS.
683 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
686 emacs_g3_CFLAGS='-g3';;
688 emacs_g3_CFLAGS='-g3 -O2';;
692 if test -n "$emacs_g3_CFLAGS"; then
693 emacs_save_CFLAGS=$CFLAGS
694 CFLAGS=$emacs_g3_CFLAGS
695 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
696 [emacs_cv_prog_cc_g3],
697 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
698 [emacs_cv_prog_cc_g3=yes],
699 [emacs_cv_prog_cc_g3=no])])
700 if test $emacs_cv_prog_cc_g3 != yes; then
701 CFLAGS=$emacs_save_CFLAGS
703 if test $opsys = mingw32; then
704 CFLAGS="$CFLAGS -gdwarf-2"
711 # No optimization flag was inferred for this non-GCC compiler.
712 # Try -O. This is needed for xlc on AIX; see Bug#14258.
713 emacs_save_CFLAGS=$CFLAGS
714 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
716 AC_CACHE_CHECK([whether $CC accepts -O],
717 [emacs_cv_prog_cc_o],
718 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
719 [emacs_cv_prog_cc_o=yes],
720 [emacs_cv_prog_cc_o=no])])
721 if test $emacs_cv_prog_cc_o != yes; then
722 CFLAGS=$emacs_save_CFLAGS
727 AC_ARG_ENABLE([gcc-warnings],
728 [AS_HELP_STRING([--enable-gcc-warnings],
729 [turn on lots of GCC warnings/errors. This is intended for
730 developers, and may generate false alarms when used
731 with older or non-GNU development tools.])],
734 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
736 gl_gcc_warnings=$enableval],
740 AC_ARG_ENABLE(link-time-optimization,
741 [AS_HELP_STRING([--enable-link-time-optimization],
742 [build emacs with link-time optimization.
743 This is supported only for GCC since 4.5.0.])],
744 if test "${enableval}" != "no"; then
745 AC_MSG_CHECKING([whether link-time optimization is supported])
747 if test x$GCC = xyes; then
748 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
749 if test x$CPUS != x; then
755 CFLAGS="$CFLAGS $LTO"
756 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
757 [ac_lto_supported=yes], [ac_lto_supported=no])
760 AC_MSG_RESULT([$ac_lto_supported])
761 if test "$ac_lto_supported" = "yes"; then
762 CFLAGS="$CFLAGS $LTO"
766 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
767 # ------------------------------------------------
768 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
769 # Otherwise, run RUN-IF-NOT-FOUND.
770 AC_DEFUN([gl_GCC_VERSION_IFELSE],
774 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
777 # error "your version of gcc is older than $1.$2"
784 # When compiling with GCC, prefer -isystem to -I when including system
785 # include files, to avoid generating useless diagnostics for the files.
786 if test "$gl_gcc_warnings" != yes; then
791 # This, $nw, is the list of warnings we disable.
794 case $with_x_toolkit in
795 lucid | athena | motif)
796 # Old toolkits mishandle 'const'.
797 nw="$nw -Wwrite-strings"
800 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
803 AC_SUBST([WERROR_CFLAGS])
805 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
806 nw="$nw -Woverlength-strings" # Not a problem these days
807 nw="$nw -Wlogical-op" # any use of fwrite provokes this
808 nw="$nw -Wformat-nonliteral" # we do this a lot
809 nw="$nw -Wvla" # warnings in gettext.h
810 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
811 nw="$nw -Wswitch-default" # Too many warnings for now
812 nw="$nw -Winline" # OK to ignore 'inline'
813 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
814 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
815 # signed overflow has undefined behavior
816 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
817 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
818 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
820 # Emacs doesn't care about shadowing; see
821 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
824 # Emacs's use of alloca inhibits protecting the stack.
825 nw="$nw -Wstack-protector"
827 # The following line should be removable at some point.
828 nw="$nw -Wsuggest-attribute=pure"
830 # clang is unduly picky about some things.
831 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
838 [emacs_cv_clang=yes],
839 [emacs_cv_clang=no])])
840 if test $emacs_cv_clang = yes; then
841 nw="$nw -Wcast-align"
844 gl_MANYWARN_ALL_GCC([ws])
845 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
849 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
850 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
851 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
852 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
853 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
854 gl_WARN_ADD([-Wno-format-nonliteral])
856 # In spite of excluding -Wlogical-op above, it is enabled, as of
857 # gcc 4.5.0 20090517.
858 gl_WARN_ADD([-Wno-logical-op])
860 # More things that clang is unduly picky about.
861 if test $emacs_cv_clang = yes; then
862 gl_WARN_ADD([-Wno-format-extra-args])
863 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
864 gl_WARN_ADD([-Wno-unused-command-line-argument])
865 gl_WARN_ADD([-Wno-unused-value])
868 gl_WARN_ADD([-fdiagnostics-show-option])
869 gl_WARN_ADD([-funit-at-a-time])
871 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
872 AH_VERBATIM([FORTIFY_SOURCE],
873 [/* Enable compile-time and run-time bounds-checking, and some warnings,
874 without upsetting glibc 2.15+. */
875 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
876 # define _FORTIFY_SOURCE 2
879 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
881 # We use a slightly smaller set of warning options for lib/.
882 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
884 nw="$nw -Wunused-macros"
886 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
887 AC_SUBST([GNULIB_WARN_CFLAGS])
892 dnl Some other nice autoconf tests.
893 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
896 dnl if test "x$RANLIB" = x; then
901 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
902 dnl can be made to directories. This is not relevant for our usage, and
903 dnl excludes some cases that work fine for us. Eg MS Windows or files
904 dnl hosted on AFS, both examples where simple links work, but links to
905 dnl directories fail. We use a cut-down version instead.
908 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
909 rm -f conf$$ conf$$.file
911 LN_S_FILEONLY='cp -p'
913 if (echo >conf$$.file) 2>/dev/null; then
914 if ln -s conf$$.file conf$$ 2>/dev/null; then
915 LN_S_FILEONLY='ln -s'
916 elif ln conf$$.file conf$$ 2>/dev/null; then
921 rm -f conf$$ conf$$.file
923 if test "$LN_S_FILEONLY" = "ln -s"; then
926 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
929 AC_SUBST(LN_S_FILEONLY)
932 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
933 dnl doesn't support links to directories, as in "ln file dir". But that
934 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
935 dnl executables at "make install" time.
936 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
937 dnl for more details.
938 if test "$opsys" = "mingw32"; then
942 AC_PATH_PROG(INSTALL_INFO, install-info, :,
943 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
944 dnl Don't use GZIP, which is used by gzip for additional parameters.
945 AC_PATH_PROG(GZIP_PROG, gzip)
947 if test $opsys = gnu-linux; then
948 AC_PATH_PROG(PAXCTL, paxctl,,
949 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
950 if test "X$PAXCTL" != X; then
951 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
952 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
953 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
954 else AC_MSG_RESULT(no); PAXCTL=""; fi])
958 ## Need makeinfo >= 4.7 (?) to build the manuals.
959 AC_PATH_PROG(MAKEINFO, makeinfo, no)
960 dnl By this stage, configure has already checked for egrep and set EGREP,
961 dnl or exited with an error if no egrep was found.
962 if test "$MAKEINFO" != "no"; then
964 $MAKEINFO --version 2> /dev/null |
965 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
971 ## Makeinfo is unusual. For a released Emacs, the manuals are
972 ## pre-built, and not deleted by the normal clean rules. makeinfo is
973 ## therefore in the category of "special tools" not normally required, which
974 ## configure does not have to check for (eg autoconf itself).
975 ## In a Bazaar checkout on the other hand, the manuals are not included.
976 ## So makeinfo is a requirement to build from Bazaar, and configure
977 ## should test for it as it does for any other build requirement.
978 ## We use the presence of $srcdir/info/emacs to distinguish a release,
979 ## with pre-built manuals, from a Bazaar checkout.
982 if test "$MAKEINFO" = "no"; then
984 if test "x${with_makeinfo}" = "xno"; then
986 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
987 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
988 source tree does not seem to have pre-built manuals in the `info' directory.
989 Either install a suitable version of makeinfo, or re-run configure
990 with the `--without-makeinfo' option to build without the manuals.] )
993 AC_SUBST(HAVE_MAKEINFO)
995 dnl Just so that there is only a single place we need to edit.
1001 dnl Add our options to ac_link now, after it is set up.
1003 if test x$GCC = xyes; then
1004 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1005 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1007 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1008 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1011 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1012 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1013 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1014 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1015 dnl if not built to support GNU ld.
1017 late_LDFLAGS=$LDFLAGS
1018 if test x$GCC = xyes; then
1019 LDFLAGS="$LDFLAGS -Wl,-znocombreloc"
1021 LDFLAGS="$LDFLAGS -znocombreloc"
1024 AC_MSG_CHECKING([for -znocombreloc])
1025 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1026 [AC_MSG_RESULT(yes)],
1027 LDFLAGS=$late_LDFLAGS
1028 [AC_MSG_RESULT(no)])
1031 dnl The function dump-emacs will not be defined and temacs will do
1032 dnl (load "loadup") automatically unless told otherwise.
1033 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1035 your-opsys-here) CANNOT_DUMP=yes ;;
1038 test "$CANNOT_DUMP" = "yes" && \
1039 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1041 AC_SUBST(CANNOT_DUMP)
1044 UNEXEC_OBJ=unexelf.o
1046 # MSDOS uses unexcoff.o
1048 UNEXEC_OBJ=unexaix.o
1054 UNEXEC_OBJ=unexmacosx.o
1057 UNEXEC_OBJ=unexhp9k800.o
1060 UNEXEC_OBJ=unexw32.o
1063 # Use the Solaris dldump() function, called from unexsol.c, to dump
1064 # emacs, instead of the generic ELF dump code found in unexelf.c.
1065 # The resulting binary has a complete symbol table, and is better
1066 # for debugging and other observability tools (debuggers, pstack, etc).
1068 # If you encounter a problem using dldump(), please consider sending
1069 # a message to the OpenSolaris tools-linking mailing list:
1070 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1072 # It is likely that dldump() works with older Solaris too, but this has
1073 # not been tested, so for now this change is for Solaris 10 or newer.
1074 UNEXEC_OBJ=unexsol.o
1081 ## Let `ld' find image libs and similar things in /usr/local/lib.
1082 ## The system compiler, GCC, has apparently been modified to not
1083 ## look there, contrary to what a stock GCC would do.
1084 ### It's not our place to do this. See bug#10313#17.
1085 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1090 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1091 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1095 ### It's not our place to do this. See bug#10313#17.
1096 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1101 ## Han Boetes <han@boetes.org> says this is necessary,
1102 ## otherwise Emacs dumps core on elf systems.
1103 LD_SWITCH_SYSTEM="-Z"
1106 AC_SUBST(LD_SWITCH_SYSTEM)
1108 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1110 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1111 ## which has not been defined yet. When this was handled with cpp,
1112 ## it was expanded to null when configure sourced the s/*.h file.
1113 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1114 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1115 ## (or somesuch), but because it is supposed to go at the _front_
1116 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1117 ## Compare with the gnu-linux case below, which added to the end
1118 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1119 ## LD_SWITCH_SYSTEM_TEMACS.
1122 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1129 AC_CHECK_DECL([__ELF__])
1130 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1131 ## With ELF, make sure that all common symbols get allocated to in the
1132 ## data section. Otherwise, the dump of temacs may miss variables in
1133 ## the shared library that have been initialized. For example, with
1134 ## GNU libc, __malloc_initialized would normally be resolved to the
1135 ## shared library's .bss section, which is fatal.
1136 if test "x$GCC" = "xyes"; then
1137 C_SWITCH_MACHINE="-fno-common"
1139 AC_MSG_ERROR([What gives? Fix me if DEC Unix supports ELF now.])
1142 UNEXEC_OBJ=unexalpha.o
1146 AC_SUBST(C_SWITCH_MACHINE)
1148 AC_SUBST(UNEXEC_OBJ)
1151 ## Some programs in src produce warnings saying certain subprograms
1152 ## are too complex and need a MAXMEM value greater than 2000 for
1153 ## additional optimization. --nils@exp-math.uni-essen.de
1154 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1155 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1156 test "$opsys" = "mingw32" && C_SWITCH_SYSTEM="-mtune=pentium4"
1157 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1158 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1159 AC_SUBST(C_SWITCH_SYSTEM)
1164 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1165 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1167 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1169 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1171 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1173 ## Motif needs -lgen.
1174 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1177 AC_SUBST(LIBS_SYSTEM)
1179 ### Make sure subsequent tests use flags consistent with the build flags.
1181 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1182 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1184 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1187 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C89 or better.
1188 AC_DEFUN([AC_TYPE_SIZE_T])
1189 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1190 AC_DEFUN([AC_TYPE_UID_T])
1194 dnl Current possibilities handled by sed (aix4-2 -> aix,
1195 dnl gnu-linux -> gnu/linux, etc.):
1196 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1197 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1198 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1205 ## Adding -lm confuses the dynamic linker, so omit it.
1208 freebsd | dragonfly )
1209 SYSTEM_TYPE=berkeley-unix
1211 gnu-linux | gnu-kfreebsd )
1213 hpux10-20 | hpux11 )
1217 SYSTEM_TYPE=windows-nt
1219 dnl NB this may be adjusted below.
1221 SYSTEM_TYPE=berkeley-unix
1225 SYSTEM_TYPE=usg-unix-v
1231 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1232 [The type of system you are compiling for; sets `system-type'.])
1235 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1236 pre_PKG_CONFIG_LIBS=$LIBS
1238 AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1240 dnl This function definition taken from Gnome 2.0
1241 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1242 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1243 dnl also defines GSTUFF_PKG_ERRORS on error
1244 AC_DEFUN([PKG_CHECK_MODULES], [
1247 if test "$PKG_CONFIG" = "no" ; then
1248 ifelse([$4], , [AC_MSG_ERROR([
1249 *** 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])
1251 PKG_CONFIG_MIN_VERSION=0.9.0
1252 if "$PKG_CONFIG" --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1253 AC_MSG_CHECKING(for $2)
1255 if "$PKG_CONFIG" --exists "$2" 2>&AS_MESSAGE_LOG_FD &&
1256 $1_CFLAGS=`"$PKG_CONFIG" --cflags "$2" 2>&AS_MESSAGE_LOG_FD` &&
1257 $1_LIBS=`"$PKG_CONFIG" --libs "$2" 2>&AS_MESSAGE_LOG_FD`; then
1264 $1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1265 $1_LIBS=`AS_ECHO(["$$1_LIBS"]) | sed -e 's,///*,/,g'`
1266 AC_MSG_RESULT([yes CFLAGS='$$1_CFLAGS' LIBS='$$1_LIBS'])
1272 ## If we have a custom action on failure, don't print errors, but
1273 ## do set a variable so people can do so. Do it in a subshell
1274 ## to capture any diagnostics in invoking pkg-config.
1275 $1_PKG_ERRORS=`("$PKG_CONFIG" --print-errors "$2") 2>&1`
1276 ifelse([$4], ,echo "$$1_PKG_ERRORS",)
1282 echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1283 echo "*** See http://www.freedesktop.org/software/pkgconfig"
1287 if test $succeeded = yes; then
1288 ifelse([$3], , :, [$3])
1290 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.])], [$4])
1295 if test "${with_sound}" != "no"; then
1296 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1297 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1298 have_sound_header=yes, [], [
1300 #define WIN32_LEAN_AND_MEAN
1301 #include <windows.h>
1304 if test "${with_sound}" = "ossaudio" || test "${with_sound}" = "yes"; then
1305 # Emulation library used on NetBSD.
1306 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1307 test "${with_sound}" = "ossaudio" && test -z "$LIBSOUND" && \
1308 AC_MSG_ERROR([ossaudio sound support requested but not found.])
1309 dnl FIXME? If we did find ossaudio, should we set with_sound=ossaudio?
1310 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1314 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1316 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1317 PKG_CHECK_MODULES(ALSA, $ALSA_MODULES, HAVE_ALSA=yes, HAVE_ALSA=no)
1318 if test $HAVE_ALSA = yes; then
1319 SAVE_CFLAGS="$CFLAGS"
1321 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1322 LIBS="$ALSA_LIBS $LIBS"
1323 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1324 emacs_alsa_normal=yes,
1325 emacs_alsa_normal=no)
1326 if test "$emacs_alsa_normal" != yes; then
1327 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1328 [[snd_lib_error_set_handler (0);]])],
1329 emacs_alsa_subdir=yes,
1330 emacs_alsa_subdir=no)
1331 if test "$emacs_alsa_subdir" != yes; then
1332 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1334 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1337 CFLAGS="$SAVE_CFLAGS"
1339 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1340 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1341 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1342 elif test "${with_sound}" = "alsa"; then
1343 AC_MSG_ERROR([ALSA sound support requested but not found.])
1345 fi dnl with_sound = alsa|yes
1347 dnl Define HAVE_SOUND if we have sound support. We know it works and
1348 dnl compiles only on the specified platforms. For others, it
1349 dnl probably doesn't make sense to try.
1350 dnl FIXME So surely we should bypass this whole section if not using
1351 dnl one of these platforms?
1352 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1354 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1355 dnl Adjust the --with-sound help text if you change this.
1356 gnu-linux|freebsd|netbsd|mingw32)
1357 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1363 AC_SUBST(CFLAGS_SOUND)
1366 dnl checks for header files
1367 AC_CHECK_HEADERS_ONCE(
1371 sys/utsname.h pwd.h utmp.h util.h sys/prctl.h)
1373 AC_MSG_CHECKING(if personality LINUX32 can be set)
1374 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1375 emacs_cv_personality_linux32=yes,
1376 emacs_cv_personality_linux32=no)
1377 AC_MSG_RESULT($emacs_cv_personality_linux32)
1379 if test $emacs_cv_personality_linux32 = yes; then
1380 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1381 [Define to 1 if personality LINUX32 can be set.])
1384 dnl On Solaris 8 there's a compilation warning for term.h because
1385 dnl it doesn't define `bool'.
1386 AC_CHECK_HEADERS(term.h, , , -)
1388 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1390 if test $ac_cv_have_decl_sys_siglist != yes; then
1391 # For Tru64, at least:
1392 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1397 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1398 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1399 #if HAVE_SYS_SOCKET_H
1400 #include <sys/socket.h>
1402 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1403 #if HAVE_SYS_SOCKET_H
1404 #include <sys/socket.h>
1406 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1407 #if HAVE_SYS_SOCKET_H
1408 #include <sys/socket.h>
1411 dnl checks for structure members
1412 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1413 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1414 struct ifreq.ifr_addr,
1415 struct ifreq.ifr_addr.sa_len], , ,
1416 [AC_INCLUDES_DEFAULT
1417 #if HAVE_SYS_SOCKET_H
1418 #include <sys/socket.h>
1424 dnl Check for endianness.
1425 dnl AC_C_BIGENDIAN is done by gnulib.
1427 dnl check for Make feature
1428 dnl AC_PROG_MAKE_SET is done by Automake.
1433 dnl check for GNU Make if we have GCC and autodepend is on.
1434 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1435 AC_MSG_CHECKING([whether we are using GNU Make])
1437 testval=`${MAKE-make} --version 2>/dev/null | grep 'GNU Make'`
1438 if test "x$testval" != x; then
1441 ac_enable_autodepend=no
1443 AC_MSG_RESULT([$HAVE_GNU_MAKE])
1444 if test $HAVE_GNU_MAKE = yes; then
1445 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1446 SAVE_CFLAGS="$CFLAGS"
1447 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1448 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1449 CFLAGS="$SAVE_CFLAGS"
1450 test -f deps.d || ac_enable_autodepend=no
1452 AC_MSG_RESULT([$ac_enable_autodepend])
1454 if test $ac_enable_autodepend = yes; then
1455 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1456 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1457 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1458 deps_frag=autodeps.mk
1461 deps_frag=$srcdir/src/$deps_frag
1464 AC_SUBST_FILE(deps_frag)
1467 lisp_frag=$srcdir/src/lisp.mk
1468 AC_SUBST_FILE(lisp_frag)
1471 dnl checks for operating system services
1472 AC_SYS_LONG_FILE_NAMES
1474 #### Choose a window system.
1476 ## We leave window_system equal to none if
1477 ## we end up building without one. Any new window system should
1478 ## set window_system to an appropriate value and add objects to
1479 ## window-system-specific substs.
1483 if test "$no_x" != yes; then
1487 LD_SWITCH_X_SITE_RPATH=
1488 if test "${x_libraries}" != NONE; then
1489 if test -n "${x_libraries}"; then
1490 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1491 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1493 x_default_search_path=""
1494 x_search_path=${x_libraries}
1495 if test -z "${x_search_path}"; then
1496 x_search_path=/usr/lib
1498 for x_library in `echo ${x_search_path}: | \
1499 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1501 ${x_library}/X11/%L/%T/%N%C%S:\
1502 ${x_library}/X11/%l/%T/%N%C%S:\
1503 ${x_library}/X11/%T/%N%C%S:\
1504 ${x_library}/X11/%L/%T/%N%S:\
1505 ${x_library}/X11/%l/%T/%N%S:\
1506 ${x_library}/X11/%T/%N%S"
1507 if test x"${x_default_search_path}" = x; then
1508 x_default_search_path=${x_search_path}
1510 x_default_search_path="${x_search_path}:${x_default_search_path}"
1514 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1516 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1517 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1520 if test x"${x_includes}" = x; then
1521 bitmapdir=/usr/include/X11/bitmaps
1523 # accumulate include directories that have X11 bitmap subdirectories
1525 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1526 if test -d "${bmd}/X11/bitmaps"; then
1527 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1529 if test -d "${bmd}/bitmaps"; then
1530 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1533 if test ${bmd_acc} != "dummyval"; then
1534 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1541 tmp_CPPFLAGS="$CPPFLAGS"
1542 tmp_CFLAGS="$CFLAGS"
1543 CPPFLAGS="$CPPFLAGS -x objective-c"
1544 CFLAGS="$CFLAGS -x objective-c"
1547 if test "${with_ns}" != no; then
1548 if test "${opsys}" = darwin; then
1550 ns_appdir=`pwd`/nextstep/Emacs.app
1551 ns_appbindir=${ns_appdir}/Contents/MacOS
1552 ns_appresdir=${ns_appdir}/Contents/Resources
1553 ns_appsrc=Cocoa/Emacs.base
1554 elif test -f $GNUSTEP_CONFIG_FILE; then
1556 ns_appdir=`pwd`/nextstep/Emacs.app
1557 ns_appbindir=${ns_appdir}
1558 ns_appresdir=${ns_appdir}/Resources
1559 ns_appsrc=GNUstep/Emacs.base
1560 dnl FIXME sourcing this several times in subshells seems inefficient.
1561 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1562 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1563 dnl I seemed to need these as well with GNUstep-startup 0.25.
1564 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1565 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1566 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1567 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1568 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1569 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1570 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1571 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1572 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1573 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1574 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1575 dnl If they had chosen to either define it or not, we could have
1576 dnl just used AC_CHECK_DECL here.
1577 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1578 emacs_cv_objc_exceptions,
1579 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1580 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1584 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1585 if test $emacs_cv_objc_exceptions = yes; then
1586 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1587 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1588 [Define if GNUstep uses ObjC exceptions.])
1589 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1593 dnl This is only used while we test the NS headers, it gets reset below.
1594 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1596 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1597 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1598 files are missing or cannot be compiled.])])
1600 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1602 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1603 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1606 #error "OSX 10.4 or newer required"
1610 ns_osx_have_104=yes,
1612 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1614 ns_have_nsinteger=yes,
1615 ns_have_nsinteger=no)
1616 if test $ns_osx_have_104 = no; then
1617 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1619 if test $ns_have_nsinteger = yes; then
1620 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1624 AC_SUBST(LIBS_GNUSTEP)
1626 INSTALL_ARCH_INDEP_EXTRA=install-etc
1627 ns_self_contained=no
1630 if test "${HAVE_NS}" = yes; then
1631 if test "$with_toolkit_scroll_bars" = "no"; then
1632 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1635 window_system=nextstep
1636 # set up packaging dirs
1637 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1638 ns_self_contained=yes
1639 prefix=${ns_appresdir}
1640 exec_prefix=${ns_appbindir}
1641 dnl This one isn't really used, only archlibdir is.
1642 libexecdir="\${ns_appbindir}/libexec"
1643 archlibdir="\${ns_appbindir}/libexec"
1644 etcdocdir="\${ns_appresdir}/etc"
1645 etcdir="\${ns_appresdir}/etc"
1646 dnl FIXME maybe set datarootdir instead.
1647 dnl That would also get applications, icons, man.
1648 infodir="\${ns_appresdir}/info"
1649 mandir="\${ns_appresdir}/man"
1650 lispdir="\${ns_appresdir}/lisp"
1651 leimdir="\${ns_appresdir}/leim"
1652 INSTALL_ARCH_INDEP_EXTRA=
1654 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o"
1656 CFLAGS="$tmp_CFLAGS"
1657 CPPFLAGS="$tmp_CPPFLAGS"
1658 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1659 AC_SUBST(ns_self_contained)
1661 AC_SUBST(NS_OBJC_OBJ)
1672 if test "${with_w32}" != no; then
1675 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1676 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1677 cannot be found.])])
1680 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1683 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1688 if test "${opsys}" = "mingw32"; then
1689 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1690 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1691 #include <windows.h>
1692 #include <usp10.h>]],
1693 [[PIMAGE_NT_HEADERS pHeader;
1694 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1695 [emacs_cv_w32api=yes
1698 AC_MSG_RESULT($emacs_cv_w32api)
1699 if test "${emacs_cv_w32api}" = "no"; then
1700 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1711 if test "${HAVE_W32}" = "yes"; then
1712 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1713 AC_CHECK_TOOL(WINDRES, [windres],
1714 [AC_MSG_ERROR([No resource compiler found.])])
1715 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1716 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1717 EMACSRES="emacs.res"
1718 case "$canonical" in
1719 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1720 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1722 UPDATE_MANIFEST=update-game-score.exe.manifest
1723 if test "${opsys}" = "cygwin"; then
1724 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1725 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1726 # Tell the linker that emacs.res is an object (which we compile from
1727 # the rc file), not a linker script.
1728 W32_RES_LINK="-Wl,emacs.res"
1730 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1731 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1732 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1733 W32_RES_LINK="\$(EMACSRES)"
1734 CLIENTRES="emacsclient.res"
1735 CLIENTW="emacsclientw\$(EXEEXT)"
1736 FIRSTFILE_OBJ=firstfile.o
1739 LIBS_ECLIENT="-lcomctl32"
1740 LIB_WSOCK32="-lwsock32"
1741 NTLIB="ntlib.$ac_objext"
1742 XARGS_LIMIT="-s 10000"
1748 AC_SUBST(EMACS_MANIFEST)
1749 AC_SUBST(UPDATE_MANIFEST)
1752 AC_SUBST(W32_RES_LINK)
1753 AC_SUBST(FIRSTFILE_OBJ)
1756 AC_SUBST(LIBS_ECLIENT)
1757 AC_SUBST(LIB_WSOCK32)
1759 AC_SUBST(XARGS_LIMIT)
1761 if test "${HAVE_W32}" = "yes"; then
1766 ## $window_system is now set to the window system we will
1774 case "${window_system}" in
1779 case "${with_x_toolkit}" in
1780 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1781 motif ) USE_X_TOOLKIT=MOTIF ;;
1783 term_header=gtkutil.h
1784 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1785 dnl USE_X_TOOLKIT is set.
1786 USE_X_TOOLKIT=none ;;
1787 gtk2 ) with_gtk2=yes
1788 term_header=gtkutil.h
1789 USE_X_TOOLKIT=none ;;
1790 gtk3 ) with_gtk3=yes
1791 term_header=gtkutil.h
1792 USE_X_TOOLKIT=none ;;
1793 no ) USE_X_TOOLKIT=none ;;
1794 dnl If user did not say whether to use a toolkit, make this decision later:
1795 dnl use the toolkit if we have gtk, or X11R5 or newer.
1796 * ) USE_X_TOOLKIT=maybe ;;
1800 term_header=nsterm.h
1803 term_header=w32term.h
1807 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1808 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1809 if test "$HAVE_XSERVER" = true ||
1810 test -n "$DISPLAY" ||
1811 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1812 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1813 were found. You should install the relevant development files for X
1814 and for the toolkit you want, such as Gtk+, Lesstif or Motif. Also make
1815 sure you have development files for image handling, i.e.
1816 tiff, gif, jpeg, png and xpm.
1817 If you are sure you want Emacs compiled without X window support, pass
1823 ### If we're using X11, we should use the X menu package.
1826 yes ) HAVE_MENUS=yes ;;
1829 # Does the opsystem file prohibit the use of the GNU malloc?
1830 # Assume not, until told otherwise.
1834 [whether malloc is Doug Lea style],
1835 [emacs_cv_var_doug_lea_malloc],
1838 [[#include <malloc.h>
1839 static void hook (void) {}]],
1840 [[malloc_set_state (malloc_get_state ());
1841 __after_morecore_hook = hook;
1842 __malloc_initialize_hook = hook;]])],
1843 [emacs_cv_var_doug_lea_malloc=yes],
1844 [emacs_cv_var_doug_lea_malloc=no])])
1845 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
1848 dnl See comments in aix4-2.h about maybe using system malloc there.
1851 ## darwin ld insists on the use of malloc routines in the System framework.
1852 darwin|sol2-10) system_malloc=yes ;;
1855 if test "${system_malloc}" = "yes"; then
1856 AC_DEFINE(SYSTEM_MALLOC, 1, [Define to use system malloc.])
1859 (The GNU allocators don't work with this system configuration.)"
1863 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
1864 VMLIMIT_OBJ=vm-limit.o
1866 AC_CHECK_HEADERS([sys/vlimit.h])
1867 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
1870 [[extern char data_start[]; char ch;]],
1871 [[return data_start < &ch;]])],
1872 [emacs_cv_data_start=yes],
1873 [emacs_cv_data_start=no])])
1874 if test $emacs_cv_data_start = yes; then
1875 AC_DEFINE([HAVE_DATA_START], 1,
1876 [Define to 1 if data_start is the address of the start
1877 of the main data segment.])
1880 AC_SUBST(GMALLOC_OBJ)
1881 AC_SUBST(VMLIMIT_OBJ)
1883 if test "$doug_lea_malloc" = "yes" ; then
1884 if test "$GNU_MALLOC" = yes ; then
1886 (Using Doug Lea's new malloc from the GNU C Library.)"
1888 AC_DEFINE(DOUG_LEA_MALLOC, 1,
1889 [Define to 1 if you are using the GNU C Library.])
1891 ## Use mmap directly for allocating larger buffers.
1892 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
1893 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
1894 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
1896 gnu*) REL_ALLOC=no ;;
1900 if test x"${REL_ALLOC}" = x; then
1901 REL_ALLOC=${GNU_MALLOC}
1904 use_mmap_for_buffers=no
1906 cygwin|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
1910 if test $use_mmap_for_buffers = yes; then
1911 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
1915 LIBS="$LIBS_SYSTEM $LIBS"
1917 dnl If found, this adds -ldnet to LIBS, which Autoconf uses for checks.
1918 AC_CHECK_LIB(dnet, dnet_ntoa)
1919 dnl This causes -lresolv to get used in subsequent tests,
1920 dnl which causes failures on some systems such as HPUX 9.
1921 dnl AC_CHECK_LIB(resolv, gethostbyname)
1923 dnl FIXME replace main with a function we actually want from this library.
1924 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
1926 dnl Check if pthreads is available.
1928 AC_CHECK_HEADERS_ONCE(pthread.h)
1929 if test "$ac_cv_header_pthread_h"; then
1930 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
1931 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
1932 dnl testing for pthread_self if Emacs uses gmalloc.c.
1933 if test "$GMALLOC_OBJ" = gmalloc.o; then
1934 emacs_pthread_function=pthread_atfork
1936 emacs_pthread_function=pthread_self
1938 AC_CHECK_LIB(pthread, $emacs_pthread_function, HAVE_PTHREAD=yes)
1940 if test "$HAVE_PTHREAD" = yes; then
1941 case "${canonical}" in
1943 *) LIB_PTHREAD="-lpthread"
1944 LIBS="$LIB_PTHREAD $LIBS" ;;
1946 AC_DEFINE(HAVE_PTHREAD, 1, [Define to 1 if you have pthread (-lpthread).])
1948 AC_SUBST([LIB_PTHREAD])
1950 AC_CHECK_LIB(pthreads, cma_open)
1952 AC_MSG_CHECKING([for thread support])
1954 if test "$with_threads" = yes; then
1955 if test "$HAVE_PTHREAD" = yes; then
1956 AC_DEFINE(THREADS_ENABLED, 1,
1957 [Define to 1 if you want elisp thread support.])
1961 AC_MSG_RESULT([$threads_enabled])
1963 ## Note: when using cpp in s/aix4.2.h, this definition depended on
1964 ## HAVE_LIBPTHREADS. That was not defined earlier in configure when
1965 ## the system file was sourced. Hence the value of LIBS_SYSTEM
1966 ## added to LIBS in configure would never contain the pthreads part,
1967 ## but the value used in Makefiles might. FIXME?
1969 ## -lpthreads seems to be necessary for Xlib in X11R6, and should
1970 ## be harmless on older versions of X where it happens to exist.
1971 test "$opsys" = "aix4-2" && \
1972 test $ac_cv_lib_pthreads_cma_open = yes && \
1973 LIBS_SYSTEM="$LIBS_SYSTEM -lpthreads"
1975 dnl Check for need for bigtoc support on IBM AIX
1979 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1981 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1982 *) gdb_cv_bigtoc=-bbigtoc ;;
1985 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1986 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
1991 # Change CFLAGS and CPPFLAGS temporarily so that C_SWITCH_X_SITE gets
1992 # used for the tests that follow. We set them back to REAL_CFLAGS and
1993 # REAL_CPPFLAGS later on.
1995 REAL_CFLAGS="$CFLAGS"
1996 REAL_CPPFLAGS="$CPPFLAGS"
1998 if test "${HAVE_X11}" = "yes"; then
1999 DEFS="$C_SWITCH_X_SITE $DEFS"
2000 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2002 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2003 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2005 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2006 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2007 # but it's more convenient here to set LD_RUN_PATH since this
2008 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2009 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2010 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2014 if test "${opsys}" = "gnu-linux"; then
2015 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2016 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2017 [[XOpenDisplay ("foo");]])],
2018 [xgnu_linux_first_failure=no],
2019 [xgnu_linux_first_failure=yes])
2020 if test "${xgnu_linux_first_failure}" = "yes"; then
2021 OLD_LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE"
2022 OLD_C_SWITCH_X_SITE="$C_SWITCH_X_SITE"
2023 OLD_CPPFLAGS="$CPPFLAGS"
2025 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2026 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2027 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2028 LIBS="$LIBS -b i486-linuxaout"
2029 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2030 [[XOpenDisplay ("foo");]])],
2031 [xgnu_linux_second_failure=no],
2032 [xgnu_linux_second_failure=yes])
2033 if test "${xgnu_linux_second_failure}" = "yes"; then
2034 # If we get the same failure with -b, there is no use adding -b.
2035 # So take it out. This plays safe.
2036 LD_SWITCH_X_SITE="$OLD_LD_SWITCH_X_SITE"
2037 C_SWITCH_X_SITE="$OLD_C_SWITCH_X_SITE"
2038 CPPFLAGS="$OLD_CPPFLAGS"
2049 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2050 # header files included from there.
2051 AC_MSG_CHECKING(for Xkb)
2052 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2053 #include <X11/XKBlib.h>]],
2054 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2055 emacs_xkb=yes, emacs_xkb=no)
2056 AC_MSG_RESULT($emacs_xkb)
2057 if test $emacs_xkb = yes; then
2058 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2061 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2062 XScreenNumberOfScreen)
2065 if test "${window_system}" = "x11"; then
2066 AC_MSG_CHECKING(X11 version 6)
2067 AC_CACHE_VAL(emacs_cv_x11_version_6,
2068 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2069 [[#if XlibSpecificationRelease < 6
2072 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2073 if test $emacs_cv_x11_version_6 = yes; then
2074 AC_MSG_RESULT(6 or newer)
2075 AC_DEFINE(HAVE_X11R6, 1,
2076 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2077 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2078 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2082 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2083 [Define if you have usable X11R6-style XIM support.])
2087 AC_MSG_RESULT(before 6)
2092 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2094 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2095 if test "${with_rsvg}" != "no"; then
2096 RSVG_REQUIRED=2.11.0
2097 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2099 PKG_CHECK_MODULES(RSVG, $RSVG_MODULE, HAVE_RSVG=yes, :)
2100 AC_SUBST(RSVG_CFLAGS)
2103 if test $HAVE_RSVG = yes; then
2104 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2105 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2106 LIBS="$RSVG_LIBS $LIBS"
2112 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes"; then
2113 if test "${with_imagemagick}" != "no"; then
2114 ## 6.2.8 is the earliest version known to work, but earlier versions
2115 ## might work - let us know if you find one.
2116 ## 6.0.7 does not work. See bug#7955.
2117 ## 6.8.2 makes Emacs crash; see Bug#13867.
2118 IMAGEMAGICK_MODULE="Wand >= 6.2.8 Wand != 6.8.2"
2119 PKG_CHECK_MODULES(IMAGEMAGICK, $IMAGEMAGICK_MODULE, HAVE_IMAGEMAGICK=yes, :)
2120 AC_SUBST(IMAGEMAGICK_CFLAGS)
2121 AC_SUBST(IMAGEMAGICK_LIBS)
2123 if test $HAVE_IMAGEMAGICK = yes; then
2124 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2125 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2126 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2127 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2135 gtk_term_header=$term_header
2138 if test "${opsys}" != "mingw32"; then
2139 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2142 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2144 dnl Checks for libraries.
2145 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2146 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2147 AC_MSG_ERROR($GTK_PKG_ERRORS)
2149 if test "$pkg_check_gtk" = "yes"; then
2150 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2151 GTK_OBJ=emacsgtkfixed.o
2152 gtk_term_header=gtkutil.h
2153 USE_GTK_TOOLKIT="GTK3"
2154 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2155 GTK_CFLAGS="$GTK_CFLAGS -DGDK_DISABLE_DEPRECATION_WARNINGS"
2156 GTK_CFLAGS="$GTK_CFLAGS -DGLIB_DISABLE_DEPRECATION_WARNINGS"
2160 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2164 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2167 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2169 dnl Checks for libraries.
2170 PKG_CHECK_MODULES(GTK, $GTK_MODULES, pkg_check_gtk=yes, pkg_check_gtk=no)
2171 if test "$pkg_check_gtk" = "no" &&
2172 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2174 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2176 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2180 if test x"$pkg_check_gtk" = xyes; then
2182 AC_SUBST(GTK_CFLAGS)
2184 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2185 CFLAGS="$CFLAGS $GTK_CFLAGS"
2186 LIBS="$GTK_LIBS $LIBS"
2187 dnl Try to compile a simple GTK program.
2188 AC_MSG_CHECKING([whether GTK compiles])
2192 [[/* Check the Gtk and Glib APIs. */
2193 #include <gtk/gtk.h>
2194 #include <glib-object.h>
2196 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2200 GtkSettings *gs = 0;
2201 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2202 strict C prohibits this. Use gtk_main_iteration to test that the
2203 libraries are there. */
2204 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2205 0, 0, 0, G_CALLBACK (callback), 0))
2206 gtk_main_iteration ();
2209 AC_MSG_RESULT([$GTK_COMPILES])
2210 if test "${GTK_COMPILES}" != "yes"; then
2212 if test "$USE_X_TOOLKIT" != "maybe"; then
2213 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2217 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2218 GTK_OBJ="gtkutil.o $GTK_OBJ"
2219 term_header=$gtk_term_header
2221 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2224 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2225 closing open displays. This is no problem if you just use
2226 one display, but if you use more than one and close one of them
2236 if test "${HAVE_GTK}" = "yes"; then
2238 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2239 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2240 if test "$with_toolkit_scroll_bars" != no; then
2241 with_toolkit_scroll_bars=yes
2244 dnl Check if we have the old file selection dialog declared and
2245 dnl in the link library. In 2.x it may be in the library,
2246 dnl but not declared if deprecated featured has been selected out.
2247 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2248 HAVE_GTK_FILE_SELECTION=no
2249 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2250 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2251 #include <gtk/gtk.h>])
2252 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2253 AC_CHECK_FUNCS(gtk_file_selection_new)
2256 dnl Same as above for gtk_handle_box.
2257 HAVE_GTK_HANDLE_BOX=no
2258 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2259 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2260 #include <gtk/gtk.h>])
2261 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2262 AC_CHECK_FUNCS(gtk_handle_box_new)
2265 dnl Same as above for gtk_tearoff_menu_item.
2266 HAVE_GTK_TEAROFF_MENU_ITEM=no
2267 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2268 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2269 #include <gtk/gtk.h>])
2270 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2271 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2274 dnl Check for functions introduced in 2.14 and later.
2275 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2276 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2277 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2278 gtk_orientable_set_orientation \
2279 gtk_window_set_has_resize_grip)
2281 term_header=gtkutil.h
2284 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2285 dnl other platforms.
2288 if test "${with_dbus}" = "yes"; then
2289 PKG_CHECK_MODULES(DBUS, dbus-1 >= 1.0, HAVE_DBUS=yes, HAVE_DBUS=no)
2290 if test "$HAVE_DBUS" = yes; then
2291 LIBS="$LIBS $DBUS_LIBS"
2292 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2293 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2294 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2296 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2297 dbus_type_is_valid \
2298 dbus_validate_bus_name \
2299 dbus_validate_path \
2300 dbus_validate_interface \
2301 dbus_validate_member)
2307 dnl GSettings has been tested under GNU/Linux only.
2309 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2310 PKG_CHECK_MODULES(GSETTINGS, gio-2.0 >= 2.26, HAVE_GSETTINGS=yes, HAVE_GSETTINGS=no)
2311 if test "$HAVE_GSETTINGS" = "yes"; then
2312 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2313 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2314 SETTINGS_LIBS="$GSETTINGS_LIBS"
2318 dnl GConf has been tested under GNU/Linux only.
2319 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2321 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2322 PKG_CHECK_MODULES(GCONF, gconf-2.0 >= 2.13, HAVE_GCONF=yes, HAVE_GCONF=no)
2323 if test "$HAVE_GCONF" = yes; then
2324 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2325 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2326 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2327 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2331 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2332 PKG_CHECK_MODULES(GOBJECT, gobject-2.0 >= 2.0, HAVE_GOBJECT=yes, HAVE_GOBJECT=no)
2333 if test "$HAVE_GOBJECT" = "yes"; then
2334 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2335 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2337 SAVE_CFLAGS="$CFLAGS"
2339 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2340 LIBS="$SETTINGS_LIBS $LIBS"
2341 AC_CHECK_FUNCS([g_type_init])
2342 CFLAGS="$SAVE_CFLAGS"
2345 AC_SUBST(SETTINGS_CFLAGS)
2346 AC_SUBST(SETTINGS_LIBS)
2349 dnl SELinux is available for GNU/Linux only.
2352 if test "${with_selinux}" = "yes"; then
2353 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2354 if test "$HAVE_LIBSELINUX" = yes; then
2355 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2356 LIBSELINUX_LIBS=-lselinux
2359 AC_SUBST(LIBSELINUX_LIBS)
2362 if test "${with_gnutls}" = "yes" ; then
2363 PKG_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6], HAVE_GNUTLS=yes, HAVE_GNUTLS=no)
2364 if test "${HAVE_GNUTLS}" = "yes"; then
2365 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2368 # Windows loads GnuTLS dynamically
2369 if test "${opsys}" = "mingw32"; then
2372 CFLAGS="$CFLAGS $LIBGNUTLS_CFLAGS"
2373 LIBS="$LIBGNUTLS_LIBS $LIBS"
2377 AC_SUBST(LIBGNUTLS_LIBS)
2378 AC_SUBST(LIBGNUTLS_CFLAGS)
2383 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2384 dnl a particular library. This doesn't make much sense?
2385 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2386 with_file_notification=no
2389 dnl MS Windows native file monitor is available for mingw32 only.
2390 case $with_file_notification,$opsys in
2391 w32,* | yes,mingw32)
2392 AC_CHECK_HEADER(windows.h)
2393 if test "$ac_cv_header_windows_h" = yes ; then
2394 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2395 NOTIFY_OBJ=w32notify.o
2396 NOTIFY_SUMMARY="yes (w32)"
2400 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2401 dnl has been added in glib 2.24. It has been tested under
2402 dnl GNU/Linux only. We take precedence over inotify, but this makes
2403 dnl only sense when glib has been compiled with inotify support. How
2405 case $with_file_notification,$NOTIFY_OBJ in
2407 PKG_CHECK_MODULES(GFILENOTIFY, gio-2.0 >= 2.24, HAVE_GFILENOTIFY=yes, HAVE_GFILENOTIFY=no)
2408 if test "$HAVE_GFILENOTIFY" = "yes"; then
2409 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2410 NOTIFY_OBJ=gfilenotify.o
2411 NOTIFY_SUMMARY="yes -lgio (gfile)"
2415 dnl inotify is only available on GNU/Linux.
2416 case $with_file_notification,$NOTIFY_OBJ in
2418 AC_CHECK_HEADER(sys/inotify.h)
2419 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2420 AC_CHECK_FUNC(inotify_init1)
2421 if test "$ac_cv_func_inotify_init1" = yes; then
2422 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2423 NOTIFY_OBJ=inotify.o
2424 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2429 case $with_file_notification,$NOTIFY_OBJ in
2430 yes,* | no,* | *,?*) ;;
2431 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2434 if test -n "$NOTIFY_OBJ"; then
2435 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2437 AC_SUBST(NOTIFY_OBJ)
2438 AC_SUBST(GFILENOTIFY_CFLAGS)
2439 AC_SUBST(GFILENOTIFY_LIBS)
2441 dnl Do not put whitespace before the #include statements below.
2442 dnl Older compilers (eg sunos4 cc) choke on it.
2445 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2446 if test "$with_xaw3d" != no; then
2447 AC_CACHE_VAL(emacs_cv_xaw3d,
2448 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2449 #include <X11/Intrinsic.h>
2450 #include <X11/Xaw3d/Simple.h>]],
2452 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2453 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2454 emacs_cv_xaw3d=no)])
2458 if test $emacs_cv_xaw3d = yes; then
2459 AC_MSG_CHECKING(for xaw3d)
2460 AC_MSG_RESULT([yes; using Lucid toolkit])
2464 AC_DEFINE(HAVE_XAW3D, 1,
2465 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2467 AC_MSG_CHECKING(for xaw3d)
2469 AC_MSG_CHECKING(for libXaw)
2470 AC_CACHE_VAL(emacs_cv_xaw,
2471 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2472 #include <X11/Intrinsic.h>
2473 #include <X11/Xaw/Simple.h>]],
2477 if test $emacs_cv_xaw = yes; then
2478 AC_MSG_RESULT([yes; using Lucid toolkit])
2481 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2482 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2484 AC_MSG_ERROR([No X toolkit could be found.
2485 If you are sure you want Emacs compiled without an X toolkit, pass
2487 to configure. Otherwise, install the development libraries for the toolkit
2488 that you want to use (e.g. Gtk+) and re-run configure.])
2493 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2496 if test "${USE_X_TOOLKIT}" != "none"; then
2497 AC_MSG_CHECKING(X11 toolkit version)
2498 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2499 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2500 [[#if XtSpecificationRelease < 6
2503 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2504 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2505 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2506 AC_MSG_RESULT(6 or newer)
2507 AC_DEFINE(HAVE_X11XTR6, 1,
2508 [Define to 1 if you have the X11R6 or newer version of Xt.])
2509 LIBXTR6="-lSM -lICE"
2511 ## Use libw.a along with X11R6 Xt.
2512 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2515 AC_MSG_RESULT(before 6)
2518 dnl If using toolkit, check whether libXmu.a exists.
2519 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2521 if test x$HAVE_X11XTR6 = xyes; then
2522 LIBS="-lXt -lSM -lICE $LIBS"
2526 AC_CHECK_LIB(Xmu, XmuConvertStandardSelection)
2527 test $ac_cv_lib_Xmu_XmuConvertStandardSelection = no && LIBS="$OLDLIBS"
2528 dnl ac_cv_lib_Xmu_XmuConvertStandardSelection is also referenced below.
2532 dnl FIXME the logic here seems weird, but this is what cpp was doing.
2533 dnl Why not just test for libxmu in the normal way?
2536 ## These systems don't supply Xmu.
2538 test "X$ac_cv_lib_Xmu_XmuConvertStandardSelection" != "Xyes" && LIBXMU=
2546 # On Irix 6.5, at least, we need XShapeQueryExtension from -lXext for Xaw3D.
2547 if test "${HAVE_X11}" = "yes"; then
2548 if test "${USE_X_TOOLKIT}" != "none"; then
2549 AC_CHECK_LIB(Xext, XShapeQueryExtension)
2554 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2555 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2556 if test -d /usr/include/openmotif; then
2557 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2558 emacs_cv_openmotif=yes
2559 case "$canonical" in
2560 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2561 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2564 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2567 emacs_cv_openmotif=no
2569 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2570 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2571 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2574 Motif version prior to 2.1.
2576 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2577 if test $emacs_cv_motif_version_2_1 = yes; then
2578 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2579 if test x$emacs_cv_openmotif = xyes; then
2580 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2583 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2584 # We put this in CFLAGS temporarily to precede other -I options
2585 # that might be in CFLAGS temporarily.
2586 # We put this in CPPFLAGS where it precedes the other -I options.
2587 OLD_CPPFLAGS=$CPPFLAGS
2589 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2590 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2591 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2593 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2594 if test $emacs_cv_lesstif = yes; then
2595 # Make sure this -I option remains in CPPFLAGS after it is set
2596 # back to REAL_CPPFLAGS.
2597 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2598 # have those other -I options anyway. Ultimately, having this
2599 # directory ultimately in CPPFLAGS will be enough.
2600 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2601 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2604 CPPFLAGS=$OLD_CPPFLAGS
2607 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2608 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2611 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2612 dnl using Motif or Xaw3d is available, and unless
2613 dnl --with-toolkit-scroll-bars=no was specified.
2615 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2616 [Define to 1 if we should use toolkit scroll bars.])dnl
2617 USE_TOOLKIT_SCROLL_BARS=no
2618 if test "${with_toolkit_scroll_bars}" != "no"; then
2619 if test "${USE_X_TOOLKIT}" != "none"; then
2620 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2621 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2623 USE_TOOLKIT_SCROLL_BARS=yes
2624 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2625 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2626 USE_TOOLKIT_SCROLL_BARS=yes
2628 elif test "${HAVE_GTK}" = "yes"; then
2629 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2630 USE_TOOLKIT_SCROLL_BARS=yes
2631 elif test "${HAVE_NS}" = "yes"; then
2632 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2633 USE_TOOLKIT_SCROLL_BARS=yes
2634 elif test "${HAVE_W32}" = "yes"; then
2635 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2636 USE_TOOLKIT_SCROLL_BARS=yes
2640 dnl See if XIM is available.
2641 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2642 #include <X11/Xlib.h>
2643 #include <X11/Xresource.h>]],
2644 [[XIMProc callback;]])],
2646 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2649 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2651 if test "${with_xim}" != "no"; then
2652 AC_DEFINE(USE_XIM, 1,
2653 [Define to 1 if we should use XIM, if it is available.])
2657 if test "${HAVE_XIM}" != "no"; then
2659 if test "$GCC" = yes; then
2660 CFLAGS="$CFLAGS --pedantic-errors"
2662 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2663 #include <X11/Xlib.h>
2664 #include <X11/Xresource.h>]],
2670 XPointer *client_data;
2672 /* If we're not using GCC, it's probably not XFree86, and this is
2673 probably right, but we can't use something like --pedantic-errors. */
2674 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2675 char*, XIMProc, XPointer*);
2677 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2679 [emacs_cv_arg6_star=yes])
2680 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2681 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2682 either XPointer or XPointer*.])dnl
2683 if test "$emacs_cv_arg6_star" = yes; then
2684 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2686 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2691 ### Start of font-backend (under any platform) section.
2692 # (nothing here yet -- this is a placeholder)
2693 ### End of font-backend (under any platform) section.
2695 ### Start of font-backend (under X11) section.
2696 if test "${HAVE_X11}" = "yes"; then
2697 PKG_CHECK_MODULES(FONTCONFIG, fontconfig >= 2.2.0, HAVE_FC=yes, HAVE_FC=no)
2699 ## Use -lXft if available, unless `--with-xft=no'.
2701 if test "${HAVE_FC}" = "no" || test "x${with_x}" = "xno"; then
2704 if test "x${with_xft}" != "xno"; then
2706 PKG_CHECK_MODULES(XFT, xft >= 0.13.0, , HAVE_XFT=no)
2707 ## Because xftfont.c uses XRenderQueryExtension, we also
2708 ## need to link to -lXrender.
2710 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2711 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2712 OLD_CPPFLAGS="$CPPFLAGS"
2713 OLD_CFLAGS="$CFLAGS"
2715 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2716 CFLAGS="$CFLAGS $XFT_CFLAGS"
2717 XFT_LIBS="-lXrender $XFT_LIBS"
2718 LIBS="$XFT_LIBS $LIBS"
2719 AC_CHECK_HEADER(X11/Xft/Xft.h,
2720 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2721 [[#include <X11/X.h>]])
2723 if test "${HAVE_XFT}" = "yes"; then
2724 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2726 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2728 CPPFLAGS="$OLD_CPPFLAGS"
2729 CFLAGS="$OLD_CFLAGS"
2731 fi # "${HAVE_XFT}" = "yes"
2732 fi # "$HAVE_XFT" != no
2733 fi # "x${with_xft}" != "xno"
2735 ## We used to allow building with FreeType and without Xft.
2736 ## However, the ftx font backend driver is not in good shape.
2737 if test "$HAVE_XFT" != "yes"; then
2738 dnl For the "Does Emacs use" message at the end.
2742 dnl Strict linkers fail with
2743 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2744 dnl if -lfreetype is not specified.
2745 dnl The following is needed to set FREETYPE_LIBS.
2746 PKG_CHECK_MODULES(FREETYPE, freetype2, HAVE_FREETYPE=yes,
2749 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2753 if test "${HAVE_FREETYPE}" = "yes"; then
2754 AC_DEFINE(HAVE_FREETYPE, 1,
2755 [Define to 1 if using the freetype and fontconfig libraries.])
2756 if test "${with_libotf}" != "no"; then
2757 PKG_CHECK_MODULES(LIBOTF, libotf, HAVE_LIBOTF=yes,
2759 if test "$HAVE_LIBOTF" = "yes"; then
2760 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2761 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2762 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2763 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2764 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2765 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2766 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2770 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2771 dnl Does the new font backend require it, or can it work without it?
2775 if test "${HAVE_LIBOTF}" = yes; then
2776 if test "${with_m17n_flt}" != "no"; then
2777 PKG_CHECK_MODULES(M17N_FLT, m17n-flt, HAVE_M17N_FLT=yes, HAVE_M17N_FLT=no)
2778 if test "$HAVE_M17N_FLT" = "yes"; then
2779 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2790 ### End of font-backend (under X11) section.
2792 AC_SUBST(FREETYPE_CFLAGS)
2793 AC_SUBST(FREETYPE_LIBS)
2794 AC_SUBST(FONTCONFIG_CFLAGS)
2795 AC_SUBST(FONTCONFIG_LIBS)
2796 AC_SUBST(LIBOTF_CFLAGS)
2797 AC_SUBST(LIBOTF_LIBS)
2798 AC_SUBST(M17N_FLT_CFLAGS)
2799 AC_SUBST(M17N_FLT_LIBS)
2801 ### Use -lXpm if available, unless `--with-xpm=no'.
2802 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2805 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2806 if test "${with_xpm}" != "no"; then
2807 SAVE_CPPFLAGS="$CPPFLAGS"
2808 SAVE_LDFLAGS="$LDFLAGS"
2809 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2810 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2811 AC_CHECK_HEADER(X11/xpm.h,
2812 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2813 if test "${HAVE_XPM}" = "yes"; then
2814 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2815 AC_EGREP_CPP(no_return_alloc_pixels,
2816 [#include "X11/xpm.h"
2817 #ifndef XpmReturnAllocPixels
2818 no_return_alloc_pixels
2820 ], HAVE_XPM=no, HAVE_XPM=yes)
2822 if test "${HAVE_XPM}" = "yes"; then
2823 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2827 CPPFLAGS="$SAVE_CPPFLAGS"
2828 LDFLAGS="$SAVE_LDFLAGS"
2833 if test "${HAVE_XPM}" = "yes"; then
2834 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2839 if test "${HAVE_X11}" = "yes"; then
2840 if test "${with_xpm}" != "no"; then
2841 AC_CHECK_HEADER(X11/xpm.h,
2842 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
2843 if test "${HAVE_XPM}" = "yes"; then
2844 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2845 AC_EGREP_CPP(no_return_alloc_pixels,
2846 [#include "X11/xpm.h"
2847 #ifndef XpmReturnAllocPixels
2848 no_return_alloc_pixels
2850 ], HAVE_XPM=no, HAVE_XPM=yes)
2852 if test "${HAVE_XPM}" = "yes"; then
2860 if test "${HAVE_XPM}" = "yes"; then
2861 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2866 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
2867 ### slightly different requirements wrt image libraries (it doesn't
2868 ### use -lXpm because it loads the xpm shared library dynamically at
2870 if test "${opsys}" = "mingw32"; then
2871 if test "${with_xpm}" != "no"; then
2872 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
2876 if test "${HAVE_XPM}" = "yes"; then
2877 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2883 ### Use -ljpeg if available, unless `--with-jpeg=no'.
2884 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
2887 if test "${opsys}" = "mingw32"; then
2888 if test "${with_jpeg}" != "no"; then
2889 dnl Checking for jpeglib.h can lose because of a redefinition of
2891 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
2893 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2894 if test "${HAVE_JPEG}" = "yes"; then
2895 AC_DEFINE(HAVE_JPEG)
2896 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2897 [#include <jpeglib.h>
2898 version=JPEG_LIB_VERSION
2900 [AC_DEFINE(HAVE_JPEG)],
2901 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2904 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2905 if test "${with_jpeg}" != "no"; then
2906 dnl Checking for jpeglib.h can lose because of a redefinition of
2908 AC_CHECK_HEADER(jerror.h,
2909 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
2912 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
2913 if test "${HAVE_JPEG}" = "yes"; then
2914 AC_DEFINE(HAVE_JPEG)
2915 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
2916 [#include <jpeglib.h>
2917 version=JPEG_LIB_VERSION
2919 [AC_DEFINE(HAVE_JPEG)],
2920 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
2923 if test "${HAVE_JPEG}" = "yes"; then
2929 ### Use -lpng if available, unless `--with-png=no'.
2930 ### mingw32 doesn't use -lpng, since it loads the library dynamically.
2933 if test "${opsys}" = "mingw32"; then
2934 if test "${with_png}" != "no"; then
2935 AC_CHECK_HEADER(png.h, HAVE_PNG=yes, HAVE_PNG=no)
2937 if test "${HAVE_PNG}" = "yes"; then
2938 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2940 AC_CHECK_DECL(png_longjmp,
2942 [AC_DEFINE(PNG_DEPSTRUCT, [],
2943 [Define to empty to suppress deprecation warnings when building
2944 with --enable-gcc-warnings and with libpng versions before 1.5,
2945 which lack png_longjmp.])],
2946 [[#ifdef HAVE_LIBPNG_PNG_H
2947 # include <libpng/png.h>
2953 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
2954 if test "${with_png}" != "no"; then
2955 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
2956 # in /usr/include/libpng.
2957 AC_CHECK_HEADERS(png.h libpng/png.h, break)
2958 if test "$ac_cv_header_png_h" = yes || test "$ac_cv_header_libpng_png_h" = yes ; then
2959 AC_CHECK_LIB(png, png_get_channels, HAVE_PNG=yes, , -lz -lm)
2963 if test "${HAVE_PNG}" = "yes"; then
2964 AC_DEFINE(HAVE_PNG, 1, [Define to 1 if you have the png library (-lpng).])
2965 LIBPNG="-lpng -lz -lm"
2967 AC_CHECK_DECL(png_longjmp,
2969 [AC_DEFINE(PNG_DEPSTRUCT, [],
2970 [Define to empty to suppress deprecation warnings when building
2971 with --enable-gcc-warnings and with libpng versions before 1.5,
2972 which lack png_longjmp.])],
2973 [[#ifdef HAVE_LIBPNG_PNG_H
2974 # include <libpng/png.h>
2985 if test "${with_zlib}" != "no"; then
2987 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
2989 case $ac_cv_search_inflateEnd in
2990 -*) LIBZ=$ac_cv_search_inflateEnd ;;
2993 if test "${HAVE_ZLIB}" = "yes"; then
2994 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
2995 ### mingw32 doesn't use -lz, since it loads the library dynamically.
2996 if test "${opsys}" = "mingw32"; then
3003 ### Use -ltiff if available, unless `--with-tiff=no'.
3004 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3007 if test "${opsys}" = "mingw32"; then
3008 if test "${with_tiff}" != "no"; then
3009 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3011 if test "${HAVE_TIFF}" = "yes"; then
3012 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3014 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3015 if test "${with_tiff}" != "no"; then
3016 AC_CHECK_HEADER(tiffio.h,
3018 # At least one tiff package requires the jpeg library.
3019 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3020 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3023 if test "${HAVE_TIFF}" = "yes"; then
3024 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3025 dnl FIXME -lz -lm, as per libpng?
3031 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3032 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3035 if test "${opsys}" = "mingw32"; then
3036 if test "${with_gif}" != "no"; then
3037 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3039 if test "${HAVE_GIF}" = "yes"; then
3040 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3042 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3043 || test "${HAVE_W32}" = "yes"; then
3044 AC_CHECK_HEADER(gif_lib.h,
3045 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3046 # Earlier versions can crash Emacs.
3047 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])
3049 if test "$HAVE_GIF" = yes; then
3051 elif test "$HAVE_GIF" = maybe; then
3052 # If gif_lib.h but no libgif, try libungif.
3053 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3054 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3057 if test "${HAVE_GIF}" = "yes"; then
3058 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3063 dnl Check for required libraries.
3064 if test "${HAVE_X11}" = "yes"; then
3067 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3068 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3069 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3070 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3071 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3072 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3073 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3074 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3075 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3076 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3078 if test "X${MISSING}" != X; then
3079 AC_MSG_ERROR([The following required libraries were not found:
3081 Maybe some development libraries/packages are missing?
3082 If you don't want to link with them give
3084 as options to configure])
3088 ### Use -lgpm if available, unless `--with-gpm=no'.
3091 if test "${with_gpm}" != "no"; then
3092 AC_CHECK_HEADER(gpm.h,
3093 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3095 if test "${HAVE_GPM}" = "yes"; then
3096 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3102 dnl Check for malloc/malloc.h on darwin
3103 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3106 ### Use NeXTstep API to implement GUI.
3107 if test "${HAVE_NS}" = "yes"; then
3108 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3109 if test "${NS_IMPL_COCOA}" = "yes"; then
3110 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3112 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3113 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3114 # See also .m.o rule in Makefile.in */
3115 # FIXME: are all these flags really needed? Document here why. */
3116 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3117 ## Extra CFLAGS applied to src/*.m files.
3118 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3120 # We also have mouse menus.
3125 if test "${HAVE_W32}" = "yes"; then
3129 ### Use session management (-lSM -lICE) if available
3132 if test "${HAVE_X11}" = "yes"; then
3133 AC_CHECK_HEADER(X11/SM/SMlib.h,
3134 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3136 if test "${HAVE_X_SM}" = "yes"; then
3137 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3141 *) LIBS="$LIBXSM $LIBS" ;;
3147 ### Use XRandr (-lXrandr) if available
3149 if test "${HAVE_X11}" = "yes"; then
3150 XRANDR_REQUIRED=1.2.2
3151 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3152 PKG_CHECK_MODULES(XRANDR, $XRANDR_MODULES, HAVE_XRANDR=yes, HAVE_XRANDR=no)
3153 if test $HAVE_XRANDR = no; then
3154 # Test old way in case pkg-config doesn't have it (older machines).
3155 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3156 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3157 if test $HAVE_XRANDR = yes; then
3158 XRANDR_LIBS=-lXrandr
3159 AC_SUBST(XRANDR_LIBS)
3162 if test $HAVE_XRANDR = yes; then
3163 SAVE_CFLAGS="$CFLAGS"
3165 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3166 LIBS="$XRANDR_LIBS $LIBS"
3167 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3168 CFLAGS="$SAVE_CFLAGS"
3171 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3175 ### Use Xinerama (-lXinerama) if available
3177 if test "${HAVE_X11}" = "yes"; then
3178 XINERAMA_REQUIRED=1.0.2
3179 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3180 PKG_CHECK_MODULES(XINERAMA, $XINERAMA_MODULES, HAVE_XINERAMA=yes,
3182 if test $HAVE_XINERAMA = no; then
3183 # Test old way in case pkg-config doesn't have it (older machines).
3184 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3185 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3186 if test $HAVE_XINERAMA = yes; then
3187 XINERAMA_LIBS=-lXinerama
3188 AC_SUBST(XINERAMA_LIBS)
3191 if test $HAVE_XINERAMA = yes; then
3192 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3197 ### Use libxml (-lxml2) if available
3198 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3200 if test "${with_xml2}" != "no"; then
3201 ### I'm not sure what the version number should be, so I just guessed.
3202 PKG_CHECK_MODULES(LIBXML2, libxml-2.0 > 2.6.17, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3203 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3204 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3205 SAVE_CPPFLAGS="$CPPFLAGS"
3206 CPPFLAGS="$CPPFLAGS -I/usr/include/libxml2"
3207 AC_CHECK_HEADER(libxml/HTMLparser.h,
3208 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3209 [#include <libxml/HTMLparser.h>])])
3210 CPPFLAGS="$SAVE_CPPFLAGS"
3211 if test "${HAVE_LIBXML2}" = "yes"; then
3212 LIBXML2_LIBS="-lxml2"
3213 LIBXML2_CFLAGS="-I/usr/include/libxml2"
3216 if test "${HAVE_LIBXML2}" = "yes"; then
3217 if test "${opsys}" != "mingw32"; then
3218 LIBS="$LIBXML2_LIBS $LIBS"
3219 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no)
3223 if test "${HAVE_LIBXML2}" = "yes"; then
3224 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3231 AC_SUBST(LIBXML2_LIBS)
3232 AC_SUBST(LIBXML2_CFLAGS)
3234 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3235 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3236 if test "${opsys}" = "mingw32"; then
3237 emacs_cv_netdb_declares_h_errno=yes
3239 AC_CACHE_CHECK(whether netdb declares h_errno,
3240 emacs_cv_netdb_declares_h_errno,
3241 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3242 [[return h_errno;]])],
3243 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3244 if test $emacs_cv_netdb_declares_h_errno = yes; then
3245 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3248 # sqrt and other floating-point functions such as fmod and frexp
3249 # are found in -lm on most systems, but mingw32 doesn't use -lm.
3250 if test "${opsys}" != "mingw32"; then
3251 AC_CHECK_LIB(m, sqrt)
3254 # Check for mail-locking functions in a "mail" library. Probably this should
3255 # have the same check as for liblockfile below.
3256 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3257 if test $have_mail = yes; then
3259 LIBS="$LIBS_MAIL $LIBS"
3260 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3264 dnl Debian, at least:
3265 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3266 if test $have_lockfile = yes; then
3267 LIBS_MAIL=-llockfile
3268 LIBS="$LIBS_MAIL $LIBS"
3269 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3271 # If we have the shared liblockfile, assume we must use it for mail
3272 # locking (e.g. Debian). If we couldn't link against liblockfile
3273 # (no liblockfile.a installed), ensure that we don't need to.
3274 dnl This works for files generally, not just executables.
3275 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3276 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3277 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3278 if test $ac_cv_prog_liblockfile = yes; then
3279 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3280 This probably means that movemail could lose mail.
3281 There may be a `development' package to install containing liblockfile.])
3284 AC_CHECK_HEADERS_ONCE(maillock.h)
3287 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3288 ## interlock access to the mail spool. The alternative is a lock file named
3289 ## /usr/spool/mail/$USER.lock.
3292 aix4-2) mail_lock="lockf" ;;
3294 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3296 ## On GNU/Linux systems, both methods are used by various mail programs.
3297 ## I assume most people are using newer mailers that have heard of flock.
3298 ## Change this if you need to.
3299 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3300 ## configure gets the right answers, and that means *NOT* using flock.
3301 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3302 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3303 ## Debian maintainer hasn't provided a clean fix for Emacs.
3304 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3305 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3306 ## correct logic. -- fx
3307 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3308 ## liblockfile is a Free Software replacement for libmail, used on
3309 ## Debian systems and elsewhere. -rfr.
3312 if test $have_mail = yes || test $have_lockfile = yes; then
3313 test $ac_cv_header_maillock_h = yes && mail_lock=no
3318 mail_lock="none-needed" ;;
3322 case "$mail_lock" in
3323 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3325 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3329 *) BLESSMAIL_TARGET="need-blessmail" ;;
3331 AC_SUBST(BLESSMAIL_TARGET)
3334 AC_CHECK_FUNCS(accept4 gethostname \
3335 getrusage get_current_dir_name \
3337 select getpagesize setlocale \
3338 getrlimit setrlimit shutdown getaddrinfo \
3339 strsignal setitimer \
3340 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3341 gai_strerror getline getdelim sync \
3342 difftime posix_memalign \
3343 getpwent endpwent getgrent endgrent \
3345 cfmakeraw cfsetspeed copysign __executable_start log2 prctl)
3347 ## Eric Backus <ericb@lsid.hp.com> says, HP-UX 9.x on HP 700 machines
3348 ## has a broken `rint' in some library versions including math library
3349 ## version number A.09.05.
3350 ## You can fix the math library by installing patch number PHSS_4630.
3351 ## But we can fix it more reliably for Emacs by just not using rint.
3352 ## We also skip HAVE_RANDOM - see comments in src/conf_post.h.
3355 *) AC_CHECK_FUNCS(random rint) ;;
3358 dnl Cannot use AC_CHECK_FUNCS
3359 AC_CACHE_CHECK([for __builtin_unwind_init],
3360 emacs_cv_func___builtin_unwind_init,
3361 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3362 emacs_cv_func___builtin_unwind_init=yes,
3363 emacs_cv_func___builtin_unwind_init=no)])
3364 if test $emacs_cv_func___builtin_unwind_init = yes; then
3365 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3366 [Define to 1 if you have the `__builtin_unwind_init' function.])
3369 AC_CHECK_HEADERS_ONCE(sys/un.h)
3374 AC_CHECK_FUNCS(grantpt)
3376 # PTY-related GNU extensions.
3377 AC_CHECK_FUNCS(getpt posix_openpt)
3379 # Check this now, so that we will NOT find the above functions in ncurses.
3380 # That is because we have not set up to link ncurses in lib-src.
3381 # It's better to believe a function is not available
3382 # than to expect to find it in ncurses.
3383 # Also we need tputs and friends to be able to build at all.
3384 AC_MSG_CHECKING([for library containing tputs])
3385 # Run a test program that contains a call to tputs, a call that is
3386 # never executed. This tests whether a pre-'main' dynamic linker
3387 # works with the library. It's too much trouble to actually call
3388 # tputs in the test program, due to portability hassles. When
3389 # cross-compiling, assume the test program will run if it links.
3390 AC_DEFUN([tputs_link_source], [
3392 [[extern void tputs (const char *, int, int (*)(int));
3393 int main (int argc, char **argv)
3396 tputs (argv[0], 0, 0);
3400 if test "${opsys}" = "mingw32"; then
3403 # Maybe curses should be tried earlier?
3404 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3405 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3407 if test -z "$tputs_library"; then
3411 LIBS_TERMCAP=-l$tputs_library
3413 LIBS="$LIBS_TERMCAP $LIBS"
3415 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3416 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3418 if test "X$msg" != Xno; then
3423 AC_MSG_RESULT([$msg])
3424 if test "X$msg" = Xno; then
3425 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3426 The following libraries were tried (in order):
3427 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3428 Please try installing whichever of these libraries is most appropriate
3429 for your system, together with its header files.
3430 For example, a libncurses-dev(el) or similar package.])
3433 ## Use termcap instead of terminfo?
3434 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3436 ## FIXME? In the cases below where we unconditionally set
3437 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3438 ## if that was found above to have tputs.
3439 ## Should we use the gnu* logic everywhere?
3441 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3442 ## The ncurses library has been moved out of the System framework in
3443 ## Mac OS X 10.2. So if configure detects it, set the command-line
3444 ## option to use it.
3445 darwin) LIBS_TERMCAP="-lncurses" ;;
3447 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3450 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3451 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3452 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3453 [[#if __FreeBSD_version < 400000
3456 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3458 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3460 if test $emacs_cv_freebsd_terminfo = yes; then
3461 LIBS_TERMCAP="-lncurses"
3464 LIBS_TERMCAP="-ltermcap"
3474 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3476 LIBS_TERMCAP="-ltermcap"
3480 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3482 ## hpux: Make sure we get select from libc rather than from libcurses
3483 ## because libcurses on HPUX 10.10 has a broken version of select.
3484 ## We used to use -lc -lcurses, but this may be cleaner.
3485 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3486 # set that way, now it uses the default). Isn't this a contradiction?
3487 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3491 TERMCAP_OBJ=tparam.o
3492 if test $TERMINFO = yes; then
3493 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3494 TERMCAP_OBJ=terminfo.o
3496 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3497 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3499 AC_SUBST(LIBS_TERMCAP)
3500 AC_SUBST(TERMCAP_OBJ)
3503 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3504 # On Darwin, res_init appears not to be useful: see bug#562 and
3505 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3508 if test $opsys != darwin; then
3510 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3511 #include <arpa/nameser.h>
3512 #include <resolv.h>]],
3513 [[return res_init();]])],
3514 have_res_init=yes, have_res_init=no)
3515 if test "$have_res_init" = no; then
3517 LIBS="$LIBS -lresolv"
3518 AC_MSG_CHECKING(for res_init with -lresolv)
3519 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3520 #include <arpa/nameser.h>
3521 #include <resolv.h>]],
3522 [[return res_init();]])],
3523 have_res_init=yes, have_res_init=no)
3524 AC_MSG_RESULT($have_res_init)
3525 if test "$have_res_init" = yes ; then
3531 if test "$have_res_init" = yes; then
3532 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3536 # Do we need the Hesiod library to provide the support routines?
3537 dnl FIXME? Should we be skipping this on Darwin too?
3539 if test "$with_hesiod" != no ; then
3540 # Don't set $LIBS here -- see comments above. FIXME which comments?
3541 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3542 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3543 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3544 if test "$resolv" = yes ; then
3549 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3550 hesiod=yes, :, $RESOLVLIB)])
3552 if test x"$hesiod" = xyes; then
3558 # Do we need libresolv (due to res_init or Hesiod)?
3559 if test "$resolv" = yes && test $opsys != darwin; then
3566 # These tell us which Kerberos-related libraries to use.
3573 if test "${with_kerberos}" != no; then
3574 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3575 if test $have_com_err = yes; then
3576 COM_ERRLIB=-lcom_err
3577 LIBS="$COM_ERRLIB $LIBS"
3579 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3580 if test $have_crypto = yes; then
3582 LIBS="$CRYPTOLIB $LIBS"
3584 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3585 if test $have_k5crypto = yes; then
3586 CRYPTOLIB=-lk5crypto
3587 LIBS="$CRYPTOLIB $LIBS"
3589 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3590 if test $have_krb5=yes; then
3592 LIBS="$KRB5LIB $LIBS"
3594 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3595 if test "${with_kerberos5}" = no; then
3596 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3597 if test $have_des425 = yes; then
3599 LIBS="$DESLIB $LIBS"
3601 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3602 if test $have_des = yes; then
3604 LIBS="$DESLIB $LIBS"
3607 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3608 if test $have_krb4 = yes; then
3610 LIBS="$KRB4LIB $LIBS"
3612 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3613 if test $have_krb = yes; then
3615 LIBS="$KRB4LIB $LIBS"
3620 if test "${with_kerberos5}" != no; then
3621 AC_CHECK_HEADERS(krb5.h,
3622 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3623 [#include <krb5.h>])])
3625 AC_CHECK_HEADERS(krb.h,,
3626 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3627 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3629 AC_CHECK_HEADERS(com_err.h)
3632 AC_SUBST(COM_ERRLIB)
3638 AC_CHECK_FUNCS_ONCE(tzset)
3639 AC_MSG_CHECKING(whether localtime caches TZ)
3640 AC_CACHE_VAL(emacs_cv_localtime_cache,
3641 [if test x$ac_cv_func_tzset = xyes; then
3642 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3643 char TZ_GMT0[] = "TZ=GMT0";
3644 char TZ_PST8[] = "TZ=PST8";
3647 time_t now = time ((time_t *) 0);
3648 int hour_GMT0, hour_unset;
3649 if (putenv (TZ_GMT0) != 0)
3651 hour_GMT0 = localtime (&now)->tm_hour;
3653 hour_unset = localtime (&now)->tm_hour;
3654 if (putenv (TZ_PST8) != 0)
3656 if (localtime (&now)->tm_hour == hour_GMT0)
3659 if (localtime (&now)->tm_hour != hour_unset)
3662 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3663 [# If we have tzset, assume the worst when cross-compiling.
3664 emacs_cv_localtime_cache=yes])
3666 # If we lack tzset, report that localtime does not cache TZ,
3667 # since we can't invalidate the cache if we don't have tzset.
3668 emacs_cv_localtime_cache=no
3670 AC_MSG_RESULT($emacs_cv_localtime_cache)
3671 if test $emacs_cv_localtime_cache = yes; then
3672 AC_DEFINE(LOCALTIME_CACHE, 1,
3673 [Define to 1 if localtime caches TZ.])
3677 AC_CHECK_FUNC(socket, , ok_so_far=no)
3678 if test $ok_so_far = yes; then
3679 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3681 if test $ok_so_far = yes; then
3682 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3684 if test $ok_so_far = yes; then
3685 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3686 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3687 [Define to 1 if you have inet sockets.])
3690 dnl Check for a Solaris 2.4 vfork bug that Autoconf misses (through 2.69).
3691 dnl This can be removed once we assume Autoconf 2.70.
3693 *-solaris2.4 | *-solaris2.4.*)
3694 dnl Disable the Autoconf-generated vfork test.
3695 : ${ac_cv_func_vfork_works=no};;
3700 AC_CHECK_FUNCS(snprintf)
3702 dnl Check this late. It depends on what other libraries (lrsvg, Gtk+ etc)
3705 AC_MSG_CHECKING([whether GLib is linked in])
3706 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3709 [[g_print ("Hello world");]])],
3712 AC_MSG_RESULT([$links_glib])
3713 if test "${links_glib}" = "yes"; then
3714 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3715 if test "$HAVE_NS" = no;then
3721 dnl Adapted from Haible's version.
3722 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3723 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3724 [[char* cs = nl_langinfo(CODESET);]])],
3725 emacs_cv_langinfo_codeset=yes,
3726 emacs_cv_langinfo_codeset=no)
3728 if test $emacs_cv_langinfo_codeset = yes; then
3729 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3730 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3735 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3736 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3737 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3738 if test "$emacs_cv_c_restrict_arr" = yes; then
3739 AC_DEFINE(__restrict_arr, __restrict,
3740 [Define to compiler's equivalent of C99 restrict keyword in array
3741 declarations. Define as empty for no equivalent.])
3744 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3745 dnl how the tty code is related to POSIX and/or other versions of termios.
3746 dnl The following looks like a useful start.
3748 dnl AC_SYS_POSIX_TERMIOS
3749 dnl if test $ac_cv_sys_posix_termios = yes; then
3750 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3751 dnl and macros for terminal control.])
3752 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3755 dnl Turned on June 1996 supposing nobody will mind it.
3756 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3757 if test "${opsys}" != "mingw32"; then
3758 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3759 in the full name stands for the login id.])
3762 dnl Every platform that uses configure supports this.
3763 dnl There is a create-lockfiles option you can
3764 dnl customize if you do not want the lock files to be written.
3765 dnl So it is not clear that this #define still needs to exist.
3766 AC_DEFINE(CLASH_DETECTION, 1, [Define if you want lock files to be written,
3767 so that Emacs can tell instantly when you try to modify a file that
3768 someone else has modified in his/her Emacs.])
3770 dnl Everybody supports this, except MS.
3771 dnl Seems like the kind of thing we should be testing for, though.
3772 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3773 if test "${opsys}" != "mingw32"; then
3774 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3777 dnl Everybody supports this, except MS-DOS.
3778 dnl Seems like the kind of thing we should be testing for, though.
3779 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3780 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3781 4.2-compatible sockets.])
3783 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3785 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3786 a null file, or a data sink.])
3787 if test "${opsys}" = "mingw32"; then
3788 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3790 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3793 AH_TEMPLATE(SEPCHAR, [Character that separates PATH elements.])
3794 if test "${opsys}" = "mingw32"; then
3795 AC_DEFINE(SEPCHAR, [';'])
3797 AC_DEFINE(SEPCHAR, [':'])
3800 dnl Everybody supports this, except MS-DOS.
3801 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3803 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3806 AC_DEFINE(DIRECTORY_SEP, ['/'],
3807 [Character that separates directories in a file name.])
3809 if test "${opsys}" = "mingw32"; then
3810 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
3811 [Returns true if character is a device separator.])
3813 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
3814 [Returns true if character is a directory separator.])
3816 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
3817 [Returns true if character is any form of separator.])
3819 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
3820 [Returns true if character is a device separator.])
3822 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
3823 [Returns true if character is a directory separator.])
3825 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
3826 [Returns true if character is any form of separator.])
3829 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
3833 dnl Unfortunately without libXmu we cannot support EditRes.
3834 if test x$ac_cv_lib_Xmu_XmuConvertStandardSelection != xyes; then
3835 AC_DEFINE(NO_EDITRES, 1)
3840 dnl Assar Westerlund <assar@sics.se> says this is necessary for
3841 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
3842 AC_DEFINE(NO_EDITRES, 1)
3848 irix6-5 | sol2* | unixware )
3849 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
3850 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
3851 dnl need the constant to dimension an array. So wire in the appropriate
3853 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
3857 emacs_broken_SIGIO=no
3860 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
3861 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
3862 hpux* | irix6-5 | openbsd | sol2* | unixware | gnu-kfreebsd )
3863 emacs_broken_SIGIO=yes
3867 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
3868 dnl the way this system works, libc functions that return malloced
3869 dnl memory use the libc malloc implementation. Calling xfree or
3870 dnl xrealloc on the results of such functions results in a crash.
3872 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
3873 dnl but that does not currently work on this system.
3875 dnl It is possible to completely override the malloc implementation on
3876 dnl AIX, but that involves putting the malloc functions in a shared
3877 dnl library and setting the MALLOCTYPE environment variable to point to
3878 dnl that shared library.
3880 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
3881 dnl to avoid a crash just use the Emacs implementation for that function.
3883 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
3884 dnl of this file, so that we do not check for get_current_dir_name
3885 dnl on AIX. But that might be fragile if something else ends
3886 dnl up testing for get_current_dir_name as a dependency.
3887 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
3888 get_current_dir_name should not be used.])
3892 dnl Circumvent a bug in FreeBSD. In the following sequence of
3893 dnl writes/reads on a PTY, read(2) returns bogus data:
3895 dnl write(2) 1022 bytes
3896 dnl write(2) 954 bytes, get EAGAIN
3897 dnl read(2) 1024 bytes in process_read_output
3898 dnl read(2) 11 bytes in process_read_output
3900 dnl That is, read(2) returns more bytes than have ever been written
3901 dnl successfully. The 1033 bytes read are the 1022 bytes written
3902 dnl successfully after processing (for example with CRs added if the
3903 dnl terminal is set up that way which it is here). The same bytes will
3904 dnl be seen again in a later read(2), without the CRs.
3905 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
3906 work around an issue when reading from a PTY.])
3912 dnl FIXME Can't we test if this exists (eg /proc/$$)?
3913 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
3918 darwin | dragonfly | freebsd | netbsd | openbsd )
3919 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
3920 close a pty to make it a controlling terminal (it is already a
3921 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
3925 dnl FIXME Surely we can test for this rather than hard-code it.
3927 netbsd | openbsd) sound_device="/dev/audio" ;;
3928 *) sound_device="/dev/dsp" ;;
3932 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
3933 [Name of the default sound device.])
3936 dnl Emacs can read input using SIGIO and buffering characters itself,
3937 dnl or using CBREAK mode and making C-g cause SIGINT.
3938 dnl The choice is controlled by the variable interrupt_input.
3940 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
3942 dnl Emacs uses the presence of the USABLE_SIGIO macro
3943 dnl to indicate whether or not signal-driven I/O is possible. It uses
3944 dnl INTERRUPT_INPUT to decide whether to use it by default.
3946 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
3947 dnl CBREAK mode has two disadvantages
3948 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
3949 dnl I hear that in system V this problem does not exist.
3950 dnl 2) Control-G causes output to be discarded.
3951 dnl I do not know whether this can be fixed in system V.
3953 dnl Another method of doing input is planned but not implemented.
3954 dnl It would have Emacs fork off a separate process
3955 dnl to read the input and send it to the true Emacs process
3958 darwin | gnu-linux | gnu-kfreebsd )
3959 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
3964 dnl If the system's imake configuration file defines `NeedWidePrototypes'
3965 dnl as `NO', we must define NARROWPROTO manually. Such a define is
3966 dnl generated in the Makefile generated by `xmkmf'. If we don't define
3967 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
3968 dnl taking float or double parameters.
3970 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
3971 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
3972 file defines `NeedWidePrototypes' as `NO'.])
3977 dnl Used in process.c, this must be a loop, even if it only runs once.
3978 dnl (Except on SGI; see below. Take that, clarity and consistency!)
3979 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
3980 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
3981 dnl trying suffixes 0-16.
3982 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
3983 first PTY, if PTYs are supported.])
3984 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
3985 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
3986 end of a PTY, if non-standard.])
3987 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
3988 end of a PTY, if non-standard.])
3992 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
3993 dnl You allocate a pty by opening /dev/ptc to get the master side.
3994 dnl To get the name of the slave side, you just ttyname() the master side.
3995 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
3996 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4000 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4001 dnl multi-line AC_DEFINEs are hard. :(
4002 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)])
4003 AC_DEFINE(PTY_NAME_SPRINTF, [])
4004 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4007 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4009 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4010 dnl Not used, because PTY_ITERATION is defined.
4011 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4012 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4013 dnl But we don't have to block SIGCHLD because it is blocked in the
4014 dnl implementation of grantpt.
4015 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (0)])
4016 AC_DEFINE(PTY_NAME_SPRINTF, [])
4017 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4021 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4024 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4026 if test "x$ac_cv_func_grantpt" = xyes; then
4027 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4028 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4029 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4030 dnl to prevent sigchld_handler from intercepting the child's death.
4031 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); }])
4032 dnl if HAVE_POSIX_OPENPT
4033 if test "x$ac_cv_func_posix_openpt" = xyes; then
4034 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (0)])
4035 AC_DEFINE(PTY_NAME_SPRINTF, [])
4037 elif test "x$ac_cv_func_getpt" = xyes; then
4038 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4039 AC_DEFINE(PTY_NAME_SPRINTF, [])
4041 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4044 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4049 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4050 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4051 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4055 dnl It looks like this cannot be right, because it is not a loop.
4056 dnl However, process.c actually does this:
4062 dnl which presumably makes it OK, since irix == sgi (?).
4063 dnl FIXME it seems like this special treatment is unnecessary?
4064 dnl Why can't irix use a single-trip loop like eg cygwin?
4065 AC_DEFINE(PTY_ITERATION, [])
4066 dnl Not used, because PTY_ITERATION is defined.
4067 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4068 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); }])
4069 dnl No need to get the pty name at all.
4070 AC_DEFINE(PTY_NAME_SPRINTF, [])
4071 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4072 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4076 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4077 dnl from intercepting that death. If any child but grantpt's should die
4078 dnl within, it should be caught after sigrelse(2).
4079 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); }])
4083 dnl Comments are as per sol2*.
4084 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); }])
4091 dnl This change means that we don't loop through allocate_pty too
4092 dnl many times in the (rare) event of a failure.
4093 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4094 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4095 dnl Push various streams modules onto a PTY channel. Used in process.c.
4096 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.])
4101 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4102 "typing" a signal character on the pty.])
4105 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4106 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4107 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4108 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4111 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4112 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4113 gnu-linux | gnu-kfreebsd )
4115 AC_MSG_CHECKING([for signals via characters])
4116 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4117 #include <linux/version.h>
4118 #if LINUX_VERSION_CODE < 0x20400
4119 # error "Linux version too old"
4121 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4123 AC_MSG_RESULT([$emacs_signals_via_chars])
4124 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4129 dnl Used in lisp.h, emacs.c, vm-limit.c
4130 dnl NEWS.18 describes this as "a number which contains
4131 dnl the high bits to be inclusive or'ed with pointers that are unpacked."
4132 AH_TEMPLATE(DATA_SEG_BITS, [Extra bits to be or'd in with any pointers
4133 stored in a Lisp_Object.])
4134 dnl if Emacs uses fewer than 32 bits for the value field of a LISP_OBJECT.
4138 dnl This works with 32-bit executables; Emacs doesn't support 64-bit.
4139 AC_DEFINE(DATA_SEG_BITS, [0x20000000])
4142 dnl The data segment on this machine always starts at address 0x40000000.
4143 AC_DEFINE(DATA_SEG_BITS, [0x40000000])
4146 AC_DEFINE(DATA_SEG_BITS, [0x10000000])
4151 AH_TEMPLATE(TAB3, [Undocumented.])
4154 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4156 gnu | dragonfly | freebsd | netbsd | openbsd )
4157 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4158 AC_DEFINE(TAB3, OXTABS)
4161 gnu-linux | gnu-kfreebsd )
4162 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4166 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4167 [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)],
4168 [Mark a secondary stack, like the register stack on the ia64.]), [])
4172 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4173 run_time_remap; for HPUX.])
4178 dnl This won't be used automatically yet. We also need to know, at least,
4179 dnl that the stack is continuous.
4180 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4181 registers relevant for conservative garbage collection in the jmp_buf.])
4185 dnl Not all the architectures are tested, but there are Debian packages
4186 dnl for SCM and/or Guile on them, so the technique must work. See also
4187 dnl comments in alloc.c concerning setjmp and gcc.
4188 dnl Fixme: it's probably safe to just use the GCC conditional below.
4189 gnu-linux | gnu-kfreebsd )
4190 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4191 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4192 || defined __alpha__ || defined __mips__ || defined __s390__ \
4193 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4194 || defined __ia64__ || defined __sh__
4197 # error "setjmp not known to work on this arch"
4199 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4204 if test x$GCC = xyes; then
4205 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4206 AC_DEFINE(GC_SETJMP_WORKS, 1)
4209 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4210 dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4211 AC_DEFINE(GC_SETJMP_WORKS, 1)
4216 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4217 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4220 [[#include <setjmp.h>
4222 # define _longjmp longjmp
4227 _longjmp (j, 1);]])],
4228 [emacs_cv_func__setjmp=yes],
4229 [emacs_cv_func__setjmp=no])])
4230 if test $emacs_cv_func__setjmp = yes; then
4231 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4233 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4236 [[#include <setjmp.h>
4239 if (! sigsetjmp (j, 1))
4240 siglongjmp (j, 1);]])],
4241 [emacs_cv_func_sigsetjmp=yes],
4242 [emacs_cv_func_sigsetjmp=no])])
4243 if test $emacs_cv_func_sigsetjmp = yes; then
4244 AC_DEFINE([HAVE_SIGSETJMP], 1,
4245 [Define to 1 if sigsetjmp and siglongjmp work.
4246 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4252 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4253 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4254 dnl and this is all we need.
4255 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4262 dnl Used in xfaces.c.
4263 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4264 some systems, where it requires time.h.])
4269 dnl Define symbols to identify the version of Unix this is.
4270 dnl Define all the symbols that apply correctly.
4271 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4272 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4273 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4274 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4279 dnl This symbol should be defined on AIX Version 3 ???????
4280 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4282 # error "_AIX not defined"
4284 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4288 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4292 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4293 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4294 dnl distinguish OS X from pure Darwin.
4295 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4298 gnu-linux | gnu-kfreebsd )
4300 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4305 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4310 AC_DEFINE(USG5_4, [])
4311 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4315 AC_DEFINE(DOS_NT, [])
4316 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4317 if test "x$ac_enable_checking" != "x" ; then
4318 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4324 AC_DEFINE(USG5_4, [])
4325 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4330 AC_DEFINE(USG5_4, [])
4334 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4337 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4338 emacs_cv_usable_FIONREAD=no
4342 emacs_cv_usable_FIONREAD=yes
4347 [AC_LANG_PROGRAM([[#include <sys/types.h>
4348 #include <sys/ioctl.h>
4350 # include <sys/filio.h>
4353 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4354 [emacs_cv_usable_FIONREAD=yes],
4355 [emacs_cv_usable_FIONREAD=no])
4358 if test $emacs_cv_usable_FIONREAD = yes; then
4359 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4361 if test $emacs_broken_SIGIO = no; then
4362 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4364 [AC_LANG_PROGRAM([[#include <fcntl.h>
4367 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4368 [emacs_cv_usable_SIGIO=yes],
4369 [emacs_cv_usable_SIGIO=no])],
4370 [emacs_cv_usable_SIGIO=yes],
4371 [emacs_cv_usable_SIGIO=no])
4372 if test $emacs_cv_usable_SIGIO = yes; then
4373 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4380 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4381 dnl and on Cygwin prior to version 1.7.24 that becomes the
4382 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4383 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4384 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4385 dnl needed starting with cygwin-1.7.24, and it is no longer
4386 dnl effective starting with glib-2.36. */
4388 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4389 G_SLICE environment variable to "always-malloc" at startup.])
4393 dnl It works to open the pty's tty in the parent (Emacs), then
4394 dnl close and reopen it in the child.
4395 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4396 works to open a pty's tty in the parent process, then close and
4397 reopen it in the child.])
4401 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4402 use VSUSP instead of VSWTCH.])
4406 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4411 # Set up the CFLAGS for real compilation, so we can substitute it.
4412 CFLAGS="$REAL_CFLAGS"
4413 CPPFLAGS="$REAL_CPPFLAGS"
4415 ## Hack to detect a buggy GCC version.
4416 if test "x$GCC" = xyes \
4417 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4418 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4419 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4420 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4423 version=$PACKAGE_VERSION
4425 copyright="Copyright (C) 2013 Free Software Foundation, Inc."
4426 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4427 [Short copyright string for this version of Emacs.])
4430 ### Specify what sort of things we'll be editing into Makefile and config.h.
4431 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4433 AC_SUBST(configuration)
4438 AC_SUBST(exec_prefix)
4441 AC_SUBST(sharedstatedir)
4442 AC_SUBST(libexecdir)
4447 AC_SUBST(standardlisppath)
4448 AC_SUBST(locallisppath)
4450 AC_SUBST(x_default_search_path)
4452 AC_SUBST(archlibdir)
4457 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4458 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4459 ## end of LIBX_BASE, but nothing ever set it.
4460 AC_SUBST(LD_SWITCH_X_SITE)
4461 AC_SUBST(C_SWITCH_X_SITE)
4462 AC_SUBST(GNUSTEP_CFLAGS)
4464 ## Used in lwlib/Makefile.in.
4465 AC_SUBST(X_TOOLKIT_TYPE)
4467 AC_SUBST(ns_appbindir)
4468 AC_SUBST(ns_appresdir)
4470 AC_SUBST(GNU_OBJC_CFLAGS)
4471 AC_SUBST(OTHER_FILES)
4473 if test -n "${term_header}"; then
4474 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4475 [Define to the header for the built-in window system.])
4478 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4479 [Define to the canonical Emacs configuration name.])
4480 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4481 [Define to the options passed to configure.])
4482 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4483 define this to include extra configuration information.])
4487 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4494 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4495 AC_DEFINE(HAVE_X_WINDOWS, 1,
4496 [Define to 1 if you want to use the X window system.])
4498 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4500 if test "$HAVE_XFT" = "yes"; then
4501 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4502 elif test "$HAVE_FREETYPE" = "yes"; then
4503 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4513 if test "${USE_X_TOOLKIT}" != "none" ; then
4515 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4516 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4517 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4518 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4519 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4523 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4524 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4528 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4529 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4530 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4534 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4535 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4538 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4541 AC_SUBST(WIDGET_OBJ)
4544 case "$USE_X_TOOLKIT" in
4545 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4546 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4547 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4549 AC_SUBST(TOOLKIT_LIBW)
4551 if test "${opsys}" != "mingw32"; then
4552 if test "$USE_X_TOOLKIT" = "none"; then
4553 LIBXT_OTHER="\$(LIBXSM)"
4554 OLDXMENU_TARGET="really-oldXMenu"
4556 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4557 OLDXMENU_TARGET="really-lwlib"
4560 AC_SUBST(LIBXT_OTHER)
4562 ## The X Menu stuff is present in the X10 distribution, but missing
4563 ## from X11. If we have X10, just use the installed library;
4564 ## otherwise, use our own copy.
4565 if test "${HAVE_X11}" = "yes" ; then
4566 AC_DEFINE(HAVE_X11, 1,
4567 [Define to 1 if you want to use version 11 of X windows.
4568 Otherwise, Emacs expects to use version 10.])
4570 if test "$USE_X_TOOLKIT" = "none"; then
4571 OLDXMENU="\${oldXMenudir}/libXMenu11.a"
4573 OLDXMENU="\${lwlibdir}/liblw.a"
4575 LIBXMENU="\$(OLDXMENU)"
4576 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4577 OLDXMENU_DEPS="\${OLDXMENU} ../src/\${OLDXMENU}"
4579 ## For a syntactically valid Makefile; not actually used for anything.
4580 ## See comments in src/Makefile.in.
4582 ## FIXME This case (!HAVE_X11 && HAVE_X_WINDOWS) is no longer possible(?).
4583 if test "${HAVE_X_WINDOWS}" = "yes"; then
4592 if test "$HAVE_GTK" = "yes" || test "$HAVE_MENUS" != "yes"; then
4599 AC_SUBST(OLDXMENU_TARGET)
4602 AC_SUBST(LIBX_OTHER)
4603 AC_SUBST(OLDXMENU_DEPS)
4605 if test "${HAVE_MENUS}" = "yes" ; then
4606 AC_DEFINE(HAVE_MENUS, 1,
4607 [Define to 1 if you have mouse menus.
4608 (This is automatic if you use X, but the option to specify it remains.)
4609 It is also defined with other window systems that support xmenu.c.])
4612 if test "${GNU_MALLOC}" = "yes" ; then
4613 AC_DEFINE(GNU_MALLOC, 1,
4614 [Define to 1 if you want to use the GNU memory allocator.])
4618 if test "${REL_ALLOC}" = "yes" ; then
4619 AC_DEFINE(REL_ALLOC, 1,
4620 [Define REL_ALLOC if you want to use the relocating allocator for
4623 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4625 AC_SUBST(RALLOC_OBJ)
4627 if test "$opsys" = "cygwin"; then
4628 CYGWIN_OBJ="sheap.o cygw32.o"
4629 ## Cygwin differs because of its unexec().
4631 POST_ALLOC_OBJ=lastfile.o
4632 elif test "$opsys" = "mingw32"; then
4635 POST_ALLOC_OBJ=lastfile.o
4638 PRE_ALLOC_OBJ=lastfile.o
4641 AC_SUBST(CYGWIN_OBJ)
4642 AC_SUBST(PRE_ALLOC_OBJ)
4643 AC_SUBST(POST_ALLOC_OBJ)
4645 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4646 # it temporarily reverts them to their pre-pkg-config values,
4647 # because gnulib needs to work with both src (which uses the
4648 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4649 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4650 # and it therefore needs to run in an environment where LIBS does not
4651 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4652 # for some package unrelated to lib-src.
4655 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4656 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4657 gl_ASSERT_NO_GNULIB_POSIXCHECK
4658 gl_ASSERT_NO_GNULIB_TESTS
4663 if test "${opsys}" = "mingw32"; then
4664 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I $srcdir/nt/inc"
4665 # Remove unneeded switches from the value of CC that goes to Makefiles
4666 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4670 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4673 ## The -headerpad option tells ld (see man page) to leave room at the
4674 ## end of the header for adding load commands. Needed for dumping.
4675 ## 0x690 is the total size of 30 segment load commands (at 56
4676 ## each); under Cocoa 31 commands are required.
4677 if test "$HAVE_NS" = "yes"; then
4678 libs_nsgui="-framework AppKit"
4679 if test "$NS_IMPL_COCOA" = "yes"; then
4680 libs_nsgui="$libs_nsgui -framework IOKit"
4687 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4689 ## This is here because src/Makefile.in did some extra fiddling around
4690 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4691 ## LD_SWITCH_SYSTEM_TEMACS instead,
4692 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4693 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4696 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4697 ## find X at run-time.
4698 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4699 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4700 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4701 ## had different values in configure (in ac_link) and src/Makefile.in.
4702 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4703 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4706 ## MinGW64 does not prepend an underscore to symbols, so we must
4707 ## pass a different -entry switch to linker. FIXME: It is better
4708 ## to make the entry points the same by changing unexw32.c.
4709 case "$canonical" in
4710 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,_start -Wl,-Map,./temacs.map" ;;
4711 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4715 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4717 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4720 if test x$ac_enable_profiling != x ; then
4722 *freebsd | gnu-linux) ;;
4723 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4727 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4729 ## MinGW-specific post-link processing of temacs.
4730 TEMACS_POST_LINK=":"
4733 if test "${opsys}" = "mingw32"; then
4734 TEMACS_POST_LINK="\$(MINGW_TEMACS_POST_LINK)"
4735 ADDSECTION="../nt/addsection\$(EXEEXT)"
4736 ## Preload heap size of temacs.exe in MB.
4737 case "$canonical" in
4738 x86_64-*-*) EMACS_HEAPSIZE=42 ;;
4739 *) EMACS_HEAPSIZE=27 ;;
4743 AC_SUBST(ADDSECTION)
4744 AC_SUBST(TEMACS_POST_LINK)
4745 AC_SUBST(EMACS_HEAPSIZE)
4747 ## Common for all window systems
4748 if test "$window_system" != "none"; then
4749 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4750 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4753 AC_SUBST(WINDOW_SYSTEM_OBJ)
4755 AH_TOP([/* GNU Emacs site configuration template file.
4757 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2013
4758 Free Software Foundation, Inc.
4760 This file is part of GNU Emacs.
4762 GNU Emacs is free software: you can redistribute it and/or modify
4763 it under the terms of the GNU General Public License as published by
4764 the Free Software Foundation, either version 3 of the License, or
4765 (at your option) any later version.
4767 GNU Emacs is distributed in the hope that it will be useful,
4768 but WITHOUT ANY WARRANTY; without even the implied warranty of
4769 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4770 GNU General Public License for more details.
4772 You should have received a copy of the GNU General Public License
4773 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4776 /* No code in Emacs #includes config.h twice, but some bits of code
4777 intended to work with other packages as well (like gmalloc.c)
4778 think they can include it as many times as they like. */
4779 #ifndef EMACS_CONFIG_H
4780 #define EMACS_CONFIG_H
4783 AH_BOTTOM([#include <conf_post.h>
4785 #endif /* EMACS_CONFIG_H */
4794 #### Report on what we decided to do.
4795 #### Report GTK as a toolkit, even if it doesn't use Xt.
4796 #### It makes printing result more understandable as using GTK sets
4797 #### toolkit_scroll_bars to yes by default.
4798 if test "${HAVE_GTK}" = "yes"; then
4799 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4802 if test $USE_ACL -ne 0; then
4803 acl_summary="yes $LIB_ACL"
4809 Configured for \`${canonical}'.
4811 Where should the build process find the source code? ${srcdir}
4812 What compiler should emacs be built with? ${CC} ${CFLAGS}
4813 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4814 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4815 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4816 What window system should Emacs use? ${window_system}
4817 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4819 if test -n "${x_includes}"; then
4820 echo " Where do we find X Windows header files? ${x_includes}"
4822 echo " Where do we find X Windows header files? Standard dirs"
4824 if test -n "${x_libraries}"; then
4825 echo " Where do we find X Windows libraries? ${x_libraries}"
4827 echo " Where do we find X Windows libraries? Standard dirs"
4830 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4831 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4832 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4833 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4834 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4835 echo " Does Emacs use -lpng? ${HAVE_PNG}"
4836 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4837 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4839 echo " Does Emacs support sound? ${HAVE_SOUND}"
4841 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4842 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
4843 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
4844 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
4845 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
4846 echo " Does Emacs use access control lists? ${acl_summary}"
4847 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
4848 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
4849 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
4851 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
4852 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
4853 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
4854 echo " Does Emacs use -lxft? ${HAVE_XFT}"
4855 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
4857 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
4858 echo " Does Emacs have threading support in elisp? ${threads_enabled}"
4861 if test -n "${EMACSDATA}"; then
4862 echo " Environment variable EMACSDATA set to: $EMACSDATA"
4864 if test -n "${EMACSDOC}"; then
4865 echo " Environment variable EMACSDOC set to: $EMACSDOC"
4870 if test "$HAVE_NS" = "yes"; then
4872 echo "You must run \"${MAKE-make} install\" in order to test the built application.
4873 The installed application will go to nextstep/Emacs.app and can be
4874 run or moved from there."
4875 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
4876 echo "The application will be fully self-contained."
4878 echo "The lisp resources for the application will be installed under ${prefix}.
4879 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
4880 to run if these resources are not installed."
4885 if test "${opsys}" = "cygwin"; then
4887 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
4893 # Remove any trailing slashes in these variables.
4894 [test "${prefix}" != NONE &&
4895 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
4896 test "${exec_prefix}" != NONE &&
4897 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
4899 if test "$HAVE_NS" = "yes"; then
4900 if test "$NS_IMPL_GNUSTEP" = yes; then
4901 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
4902 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
4904 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
4905 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
4909 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
4910 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
4911 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
4912 dnl (else you get "no `Makefile.am' found for any configure output").
4913 dnl This will work, but you get a config.status that is not quite right
4914 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
4915 dnl That doesn't have any obvious consequences for Emacs, but on the whole
4916 dnl it seems better to just live with the duplication.
4917 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
4919 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
4920 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
4921 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
4922 leim/Makefile nextstep/Makefile nt/Makefile])
4924 dnl test/ is not present in release tarfiles.
4925 opt_makefile=test/automated/Makefile
4927 if test -f "$srcdir/$opt_makefile.in"; then
4928 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4929 dnl Again, it's best not to use a variable. Though you can add
4930 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
4931 AC_CONFIG_FILES([test/automated/Makefile])
4935 dnl admin/ may or may not be present.
4936 opt_makefile=admin/unidata/Makefile
4938 if test -f "$srcdir/$opt_makefile.in"; then
4939 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
4940 AC_CONFIG_FILES([admin/unidata/Makefile])
4944 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
4946 AC_SUBST(SUBDIR_MAKEFILES_IN)
4948 dnl You might wonder (I did) why epaths.h is generated by running make,
4949 dnl rather than just letting configure generate it from epaths.in.
4950 dnl One reason is that the various paths are not fully expanded (see above);
4951 dnl eg gamedir=${prefix}/var/games/emacs.
4952 dnl Secondly, the GNU Coding standards require that one should be able
4953 dnl to run `make prefix=/some/where/else' and override the values set
4954 dnl by configure. This also explains the `move-if-change' test and
4955 dnl the use of force in the `epaths-force' rule in Makefile.in.
4956 AC_CONFIG_COMMANDS([src/epaths.h], [
4957 if test "${opsys}" = "mingw32"; then
4958 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
4960 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
4962 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
4964 AC_CONFIG_COMMANDS([src/.gdbinit], [
4965 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
4966 echo "source $srcdir/src/.gdbinit" > src/.gdbinit