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, 1999-2016 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 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 25.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
135 dnl Fairly arbitrary, older versions might work too.
136 AM_INIT_AUTOMAKE(1.11)
138 dnl Canonicalize the configuration name.
144 if test -z "$host_alias"; then
146 # No --host argument was given to 'configure'; therefore $host
147 # was set to a default value based on the build platform. But
148 # this default value may be wrong if we are building from a
149 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
150 # Therefore, we'll try to get the right host platform from the
153 AC_MSG_CHECKING([the compiler's target])
154 if test -z "$CC"; then
159 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
163 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
164 Please explicitly provide --host.])
166 *) AC_MSG_WARN([Compiler reported non-standard target.
167 Defaulting to $host.])
170 AC_MSG_RESULT([$host])
173 . $srcdir/nt/mingw-cfg.site
177 # srcdir is an absolute path. In this case, force the format
178 # "/c/foo/bar", to simplify later conversions to native Windows
179 # format ("c:/foo/bar").
180 srcdir=`cd "${srcdir}" && pwd -W`
181 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
182 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
188 configuration=${host_alias-${build_alias-$host}}
190 dnl Support for --program-prefix, --program-suffix and
191 dnl --program-transform-name options
194 dnl It is important that variables on the RHS not be expanded here,
195 dnl hence the single quotes. This is per the GNU coding standards, see
196 dnl (autoconf) Installation Directory Variables
197 dnl See also epaths.h below.
198 lispdir='${datadir}/emacs/${version}/lisp'
199 standardlisppath='${lispdir}'
200 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
201 '${datadir}/emacs/site-lisp'
202 lisppath='${locallisppath}:${standardlisppath}'
203 etcdir='${datadir}/emacs/${version}/etc'
204 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
205 etcdocdir='${datadir}/emacs/${version}/etc'
206 gamedir='${localstatedir}/games/emacs'
208 dnl Special option to disable the most of other options.
210 [AS_HELP_STRING([--without-all],
211 [omit almost all features and build
212 small executable with minimal dependencies])],
213 [with_features=$withval],
216 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
217 dnl Create a new --with option that defaults to being disabled.
218 dnl NAME is the base name of the option. The shell variable with_NAME
219 dnl will be set to either the user's value (if the option is
220 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
221 dnl option is not specified). Note that the shell variable name is
222 dnl constructed as autoconf does, by replacing non-alphanumeric
223 dnl characters with "_".
224 dnl HELP-STRING is the help text for the option.
225 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
226 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
227 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
230 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
231 dnl Create a new --with option that defaults to $with_features.
232 dnl NAME is the base name of the option. The shell variable with_NAME
233 dnl will be set either to 'no' (for a plain --without-NAME) or to
234 dnl 'yes' (if the option is not specified). Note that the shell
235 dnl variable name is constructed as autoconf does, by replacing
236 dnl non-alphanumeric characters with "_".
237 dnl HELP-STRING is the help text for the option.
238 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
239 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
240 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
243 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
244 if test "$with_pop" = yes; then
245 AC_DEFINE(MAIL_USE_POP)
247 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
249 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
250 if test "$with_kerberos" != no; then
253 AH_TEMPLATE(KERBEROS,
254 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
256 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
257 if test "${with_kerberos5}" != no; then
258 if test "${with_kerberos}" = no; then
262 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
265 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
266 dnl FIXME hesiod support may not be present, so it seems like an error
267 dnl to define, or at least use, this unconditionally.
268 if test "$with_hesiod" != no; then
269 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
272 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
273 if test "$with_mail_unlink" != no; then
274 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
277 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
278 [string giving default POP mail host])],
279 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
281 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
282 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
283 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
284 [ case "${withval}" in
285 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
286 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
287 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
292 [with_sound=$with_features])
294 dnl FIXME currently it is not the last.
295 dnl This should be the last --with option, because --with-x is
296 dnl added later on when we find the file name of X, and it's best to
297 dnl keep them together visually.
298 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
299 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
300 [ case "${withval}" in
301 y | ye | yes ) val=gtk ;;
303 l | lu | luc | luci | lucid ) val=lucid ;;
304 a | at | ath | athe | athen | athena ) val=athena ;;
305 m | mo | mot | moti | motif ) val=motif ;;
306 g | gt | gtk ) val=gtk ;;
310 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
311 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
312 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
313 'athena' and 'lucid' are synonyms.])
319 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit); allows buffer and string size up to 2GB on 32-bit hosts, at the cost of 10% to 30% slowdown of Lisp interpreter and larger memory footprint])
320 if test "$with_wide_int" = yes; then
321 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
324 dnl _ON results in a '--without' option in the --help output, so
325 dnl the help text should refer to "don't compile", etc.
326 with_xpm_set=${with_xpm+set}
327 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
328 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
329 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
330 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
331 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
332 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
333 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing])
334 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
335 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
337 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
338 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
339 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
341 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
342 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
343 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
344 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
345 [use Nextstep (OS X Cocoa or GNUstep) windowing system.
346 On by default on Mac OS X.])],[],[with_ns=maybe])
347 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
349 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
350 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
351 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
352 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
353 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
354 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
355 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
356 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
358 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
359 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
360 [ case "${withval}" in
361 y | ye | yes ) val=yes ;;
363 g | gf | gfi | gfil | gfile ) val=gfile ;;
364 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
365 w | w3 | w32 ) val=w32 ;;
366 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
367 this option's value should be 'yes', 'no', 'gfile', 'inotify' or 'w32'.
368 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
369 otherwise for the first of 'inotify' or 'gfile' that is usable.])
372 with_file_notification=$val
374 [with_file_notification=$with_features])
376 OPTION_DEFAULT_OFF([xwidgets],
377 [enable use of some gtk widgets in Emacs buffers])
379 ## For the times when you want to build Emacs but don't have
380 ## a suitable makeinfo, and can live without the manuals.
381 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
382 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
384 ## This might be a 'configure' arg.
385 AC_SUBST([ACLOCAL_PATH])
387 ## Makefile.in needs the cache file name.
390 ## This is an option because I do not know if all info/man support
391 ## compressed files, nor how to test if they do so.
392 OPTION_DEFAULT_ON([compress-install],
393 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
394 make GZIP_PROG= install])
396 AC_ARG_WITH(gameuser,dnl
397 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
398 [user for shared game score files.
399 An argument prefixed by ':' specifies a group instead.])])
402 # We don't test if we can actually chown/chgrp here, because configure
403 # may run without root privileges. lib-src/Makefile.in will handle
404 # any errors due to missing user/group gracefully.
405 case ${with_gameuser} in
407 "" | yes) gamegroup=games ;;
408 :*) gamegroup=${with_gameuser#:} ;;
409 *) gameuser=${with_gameuser} ;;
412 AC_ARG_WITH([gnustep-conf],dnl
413 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
414 [name of GNUstep configuration file to use on systems where the command
415 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
416 /etc/GNUstep/GNUstep.conf])])
417 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
418 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
419 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
420 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
422 AC_ARG_ENABLE(ns-self-contained,
423 [AS_HELP_STRING([--disable-ns-self-contained],
424 [disable self contained build under NeXTstep])],
425 EN_NS_SELF_CONTAINED=$enableval,
426 EN_NS_SELF_CONTAINED=yes)
429 AC_ARG_ENABLE(locallisppath,
430 [AS_HELP_STRING([--enable-locallisppath=PATH],
431 [directories Emacs should search for lisp files specific
433 if test "${enableval}" = "no"; then
435 elif test "${enableval}" != "yes"; then
436 locallisppath=${enableval} locallisppathset=yes
439 AC_ARG_ENABLE(checking,
440 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
441 [enable expensive run-time checks. With LIST,
442 enable only specific categories of checks.
443 Categories are: all,yes,no.
444 Flags are: stringbytes, stringoverrun, stringfreelist,
445 xmallocoverrun, conslist, glyphs])],
446 [ac_checking_flags="${enableval}"],[])
447 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
448 for check in $ac_checking_flags
451 # these set all the flags to specific states
452 yes) ac_enable_checking=1 ;;
453 no) ac_enable_checking= ;
454 ac_gc_check_stringbytes= ;
455 ac_gc_check_string_overrun= ;
456 ac_gc_check_string_free_list= ;
457 ac_xmalloc_overrun= ;
458 ac_gc_check_cons_list= ;
460 all) ac_enable_checking=1 ;
461 ac_gc_check_stringbytes=1 ;
462 ac_gc_check_string_overrun=1 ;
463 ac_gc_check_string_free_list=1 ;
464 ac_xmalloc_overrun=1 ;
465 ac_gc_check_cons_list=1 ;
467 # these enable particular checks
468 stringbytes) ac_gc_check_stringbytes=1 ;;
469 stringoverrun) ac_gc_check_string_overrun=1 ;;
470 stringfreelist) ac_gc_check_string_free_list=1 ;;
471 xmallocoverrun) ac_xmalloc_overrun=1 ;;
472 conslist) ac_gc_check_cons_list=1 ;;
473 glyphs) ac_glyphs_debug=1 ;;
474 *) AC_MSG_ERROR(unknown check category $check) ;;
479 if test x$ac_enable_checking != x ; then
480 AC_DEFINE(ENABLE_CHECKING, 1,
481 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
483 if test x$ac_gc_check_stringbytes != x ; then
484 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
485 [Define this temporarily to hunt a bug. If defined, the size of
486 strings is redundantly recorded in sdata structures so that it can
487 be compared to the sizes recorded in Lisp strings.])
489 if test x$ac_gc_check_string_overrun != x ; then
490 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
491 [Define this to check for short string overrun.])
493 if test x$ac_gc_check_string_free_list != x ; then
494 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
495 [Define this to check the string free list.])
497 if test x$ac_xmalloc_overrun != x ; then
498 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
499 [Define this to check for malloc buffer overrun.])
501 if test x$ac_gc_check_cons_list != x ; then
502 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
503 [Define this to check for errors in cons list.])
505 if test x$ac_glyphs_debug != x ; then
506 AC_DEFINE(GLYPH_DEBUG, 1,
507 [Define this to enable glyphs debugging code.])
510 AC_ARG_ENABLE(check-lisp-object-type,
511 [AS_HELP_STRING([--enable-check-lisp-object-type],
512 [enable compile time checks for the Lisp_Object data type.
513 This is useful for development for catching certain types of bugs.])],
514 if test "${enableval}" != "no"; then
515 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
516 [Define this to enable compile time checks for the Lisp_Object data type.])
520 dnl The name of this option is unfortunate. It predates, and has no
521 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
522 dnl Actually, it stops it working.
523 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
524 AC_ARG_ENABLE(profiling,
525 [AS_HELP_STRING([--enable-profiling],
526 [build emacs with low-level, gprof profiling support.
527 Mainly useful for debugging Emacs itself. May not work on
528 all platforms. Stops profiler.el working.])],
529 [ac_enable_profiling="${enableval}"],[])
530 if test x$ac_enable_profiling != x ; then
531 PROFILING_CFLAGS="-DPROFILING=1 -pg"
535 AC_SUBST(PROFILING_CFLAGS)
537 AC_ARG_ENABLE(autodepend,
538 [AS_HELP_STRING([--enable-autodepend],
539 [automatically generate dependencies to .h-files.
540 Requires gcc, enabled if found.])],
541 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
543 AC_ARG_ENABLE(gtk-deprecation-warnings,
544 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
545 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
546 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
548 dnl This used to use changequote, but, apart from 'changequote is evil'
549 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
550 dnl the great gob of text. Thus it's not processed for possible expansion.
551 dnl Just make sure the brackets remain balanced.
553 dnl Since Emacs can't find matching pairs of quotes, boundaries are
554 dnl indicated by comments.
558 ### If you add support for a new configuration, add code to this
559 ### switch statement to recognize your configuration name and select
560 ### the appropriate opsys.
562 ### As far as handling version numbers on operating systems is
563 ### concerned, make sure things will fail in a fixable way. If
564 ### /etc/MACHINES doesn't say anything about version numbers, be
565 ### prepared to handle anything reasonably. If version numbers
566 ### matter, be sure /etc/MACHINES says something about it.
569 case "${canonical}" in
571 ## GNU/Linux and similar ports
586 ## FreeBSD kernel + glibc based userland
597 *-*-openbsd* | *-*-mirbsd* )
601 ## Apple Darwin / Mac OS X
603 case "${canonical}" in
604 *-apple-darwin[0-9].*) unported=yes ;;
605 i[3456]86-* | x86_64-* ) ;;
609 ## Use fink packages if available.
610 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
611 ## if test -d /sw/include && test -d /sw/lib; then
612 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
613 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
617 ## Chromium Native Client
627 ## HP 9000 series 700 and 800, running HP/UX
631 hppa*-hp-hpux1[1-9]* )
633 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
637 rs6000-ibm-aix4.[23]* )
640 powerpc-ibm-aix4.[23]* )
643 rs6000-ibm-aix[56]* )
646 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
650 ## Silicon Graphics machines
654 # Without defining _LANGUAGE_C, things get masked out in the headers
655 # so that, for instance, grepping for 'free' in stdlib.h fails and
656 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
657 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
662 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
663 | x86_64-*-solaris2* | x86_64-*-sunos5*)
664 case "${canonical}" in
666 amd64-*-*|x86_64-*-*) ;;
670 case "${canonical}" in
671 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
673 emacs_check_sunpro_c=yes
675 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
676 ## Note that Emacs 23.1's NEWS said the following would be dropped.
677 *-sunos5.6* | *-solaris2.6* )
681 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
682 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
684 emacs_check_sunpro_c=yes
687 ## Watch out for a compiler that we know will not work.
688 case "${canonical}" in
689 *-solaris* | *-sunos5* )
690 if [ "x$CC" = x/usr/ucb/cc ]; then
691 ## /usr/ucb/cc doesn't work;
692 ## we should find some other compiler that does work.
700 ## Intel 386 machines where we don't care about the manufacturer.
702 case "${canonical}" in
703 *-darwin* ) opsys=darwin ;;
706 # MinGW overrides and adds some system headers in nt/inc.
707 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
709 *-sysv4.2uw* ) opsys=unixware ;;
710 *-sysv5uw* ) opsys=unixware ;;
711 *-sysv5OpenUNIX* ) opsys=unixware ;;
712 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
718 case "${canonical}" in
721 # MinGW overrides and adds some system headers in nt/inc.
722 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
724 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
733 ### If the code above didn't choose an operating system, just choose
734 ### an operating system based on the configuration name. You really
735 ### only want to use this when you have no idea what the right
736 ### operating system is; if you know what operating systems a machine
737 ### runs, it's cleaner to make it explicit in the case statement
739 if test x"${opsys}" = x; then
740 case "${canonical}" in
741 *-gnu* ) opsys=gnu ;;
751 if test $unported = yes; then
752 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
753 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
754 Check 'etc/MACHINES' for recognized configuration names.])
757 #### Choose a compiler.
759 dnl Don't bother to test for C89.
760 AC_DEFUN([_AC_PROG_CC_C89], [$2])
762 dnl Sets GCC=yes if using gcc.
763 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
764 if test -n "$XCRUN"; then
765 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
766 test -n "$AR" && export AR
769 dnl Emacs needs C99 or later.
774 if test x$GCC = xyes; then
775 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
777 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
780 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
781 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
782 dnl that clash with MinGW.
783 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
785 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
786 AC_DEFUN([gl_CRYPTO_CHECK])
787 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
788 # as we don't use them.
789 AC_DEFUN([gl_FCNTL_O_FLAGS])
790 # Avoid gnulib's test for pthread_sigmask.
792 for func in $ac_func_list; do
793 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
796 # Use the system putenv even if it lacks GNU features, as we don't need them,
797 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
798 AC_CHECK_FUNCS_ONCE([putenv])
799 AC_DEFUN([gl_FUNC_PUTENV],
800 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
802 # Initialize gnulib right after choosing the compiler.
803 dnl Amongst other things, this sets AR and ARFLAGS.
806 if test "$ac_test_CFLAGS" != set; then
807 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
808 # if -g3 works and the user does not specify CFLAGS.
809 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
812 emacs_g3_CFLAGS='-g3';;
814 emacs_g3_CFLAGS='-g3 -O2';;
818 if test -n "$emacs_g3_CFLAGS"; then
819 emacs_save_CFLAGS=$CFLAGS
820 CFLAGS=$emacs_g3_CFLAGS
821 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
822 [emacs_cv_prog_cc_g3],
823 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
824 [emacs_cv_prog_cc_g3=yes],
825 [emacs_cv_prog_cc_g3=no])])
826 if test $emacs_cv_prog_cc_g3 != yes; then
827 CFLAGS=$emacs_save_CFLAGS
829 if test $opsys = mingw32; then
830 CFLAGS="$CFLAGS -gdwarf-2"
837 # No optimization flag was inferred for this non-GCC compiler.
838 # Try -O. This is needed for xlc on AIX; see Bug#14258.
839 emacs_save_CFLAGS=$CFLAGS
840 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
842 AC_CACHE_CHECK([whether $CC accepts -O],
843 [emacs_cv_prog_cc_o],
844 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
845 [emacs_cv_prog_cc_o=yes],
846 [emacs_cv_prog_cc_o=no])])
847 if test $emacs_cv_prog_cc_o != yes; then
848 CFLAGS=$emacs_save_CFLAGS
853 AC_ARG_ENABLE([gcc-warnings],
854 [AS_HELP_STRING([--enable-gcc-warnings],
855 [turn on lots of GCC warnings/errors. This is intended for
856 developers, and may generate false alarms when used
857 with older or non-GNU development tools.])],
860 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
862 gl_gcc_warnings=$enableval],
866 # clang is unduly picky about some things.
867 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
874 [emacs_cv_clang=yes],
875 [emacs_cv_clang=no])])
877 # When compiling with GCC, prefer -isystem to -I when including system
878 # include files, to avoid generating useless diagnostics for the files.
879 if test "$gl_gcc_warnings" != yes; then
881 if test "$emacs_cv_clang" = yes
883 # Turn off some warnings if supported.
884 gl_WARN_ADD([-Wno-switch])
885 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
886 gl_WARN_ADD([-Wno-pointer-sign])
887 gl_WARN_ADD([-Wno-string-plus-int])
888 gl_WARN_ADD([-Wno-unknown-attributes])
893 # This, $nw, is the list of warnings we disable.
896 case $with_x_toolkit in
897 lucid | athena | motif)
898 # Old toolkits mishandle 'const'.
899 nw="$nw -Wwrite-strings"
902 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
905 AC_SUBST([WERROR_CFLAGS])
907 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
908 nw="$nw -Woverlength-strings" # Not a problem these days
909 nw="$nw -Wformat-nonliteral" # we do this a lot
910 nw="$nw -Wvla" # Emacs uses <vla.h>.
911 nw="$nw -Wswitch-default" # Too many warnings for now
912 nw="$nw -Winline" # OK to ignore 'inline'
913 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
914 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
915 # signed overflow has undefined behavior
916 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
917 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
918 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
920 # Emacs doesn't care about shadowing; see
921 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
924 # Emacs's use of alloca inhibits protecting the stack.
925 nw="$nw -Wstack-protector"
927 # Emacs's use of partly-const functions such as Fgnutls_available_p
928 # make this option problematic.
929 nw="$nw -Wsuggest-attribute=const"
931 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
932 # option problematic.
933 nw="$nw -Wsuggest-attribute=pure"
935 # This part is merely for shortening the command line,
936 # since -Wall implies -Wswitch.
939 # This part is merely for shortening the command line,
940 # since -Wno-FOO needs to be added below regardless.
941 nw="$nw -Wmissing-field-initializers"
942 nw="$nw -Wtype-limits"
943 nw="$nw -Wunused-parameter"
945 if test $emacs_cv_clang = yes; then
946 nw="$nw -Wcast-align"
949 gl_MANYWARN_ALL_GCC([ws])
950 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
954 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
955 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
956 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
957 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
958 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
959 gl_WARN_ADD([-Wno-format-nonliteral])
961 # More things that clang is unduly picky about.
962 if test $emacs_cv_clang = yes; then
963 gl_WARN_ADD([-Wno-format-extra-args])
964 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
965 gl_WARN_ADD([-Wno-unused-command-line-argument])
966 gl_WARN_ADD([-Wno-unused-value])
969 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
970 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
971 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
972 [/* Enable compile-time and run-time bounds-checking, and some warnings,
973 without upsetting glibc 2.15+. */
974 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
975 && defined __OPTIMIZE__ && __OPTIMIZE__)
976 # define _FORTIFY_SOURCE 2
980 # We use a slightly smaller set of warning options for lib/.
981 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
983 nw="$nw -Wunused-macros"
985 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
986 AC_SUBST([GNULIB_WARN_CFLAGS])
996 AC_ARG_ENABLE(link-time-optimization,
997 [AS_HELP_STRING([--enable-link-time-optimization],
998 [build emacs with link-time optimization.
999 This requires GCC 4.5.0 or later, or clang.
1000 (Note that clang support is experimental - see INSTALL.)
1001 It also makes Emacs harder to debug, and when we tried it
1002 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1003 recommended for typical use.])],
1004 if test "${enableval}" != "no"; then
1006 if test $emacs_cv_clang = yes; then
1007 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1008 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1009 if test -x "$GOLD_PLUGIN"; then
1012 elif test x$GCC = xyes; then
1013 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1014 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1015 if test x$CPUS != x; then
1021 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1023 if test -z "$LTO"; then
1027 CFLAGS="$CFLAGS $LTO"
1028 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1029 [ac_lto_supported=yes], [ac_lto_supported=no])
1030 CFLAGS="$old_CFLAGS"
1032 AC_MSG_RESULT([$ac_lto_supported])
1033 if test "$ac_lto_supported" = "yes"; then
1034 CFLAGS="$CFLAGS $LTO"
1035 if test x$emacs_cv_clang = xyes; then
1036 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1037 # WARNING: 'ar --plugin ...' doesn't work without
1038 # command, so plugin name is appended to ARFLAGS.
1039 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1040 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1042 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1043 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1044 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1045 dnl dump core on Fedora 20, so play it safe for now.
1046 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1047 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1052 dnl Prefer silent make output. For verbose output, use
1053 dnl 'configure --disable-silent-rules' or 'make V=1' .
1054 AM_SILENT_RULES([yes])
1055 dnl Port to Automake 1.11.
1056 dnl This section can be removed once we assume Automake 1.14 or later.
1057 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1058 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1060 AM_SUBST_NOTMAKE([AM_V])
1061 AC_SUBST([AM_DEFAULT_V])
1062 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1063 AC_SUBST([AM_DEFAULT_VERBOSITY])
1065 dnl Some other nice autoconf tests.
1066 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1069 dnl if test "x$RANLIB" = x; then
1074 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1075 dnl can be made to directories. This is not relevant for our usage, and
1076 dnl excludes some cases that work fine for us. Eg MS Windows or files
1077 dnl hosted on AFS, both examples where simple links work, but links to
1078 dnl directories fail. We use a cut-down version instead.
1081 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1082 rm -f conf$$ conf$$.file
1084 LN_S_FILEONLY='cp -p'
1086 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1087 dnl random program in the current directory.
1088 if (echo >conf$$.file) 2>/dev/null; then
1089 if ln -s conf$$.file conf$$ 2>/dev/null; then
1090 if test "$opsys" = "mingw32"; then
1091 LN_S_FILEONLY='/bin/ln -s'
1093 LN_S_FILEONLY='ln -s'
1095 elif ln conf$$.file conf$$ 2>/dev/null; then
1096 if test "$opsys" = "mingw32"; then
1097 LN_S_FILEONLY=/bin/ln
1104 rm -f conf$$ conf$$.file
1106 if test "$LN_S_FILEONLY" = "ln -s"; then
1107 AC_MSG_RESULT([yes])
1109 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1112 AC_SUBST(LN_S_FILEONLY)
1115 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1116 dnl doesn't support links to directories, as in "ln file dir". But that
1117 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1118 dnl executables at "make install" time.
1119 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1120 dnl for more details.
1121 if test "$opsys" = "mingw32"; then
1125 dnl On some Debian versions, "install-info" prints irritating messages
1126 dnl "This is not dpkg install-info anymore, but GNU install-info"
1127 dnl if called via an absolute file name.
1128 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1129 dnl Sadly some people may have an old ginstall-info installed on
1130 dnl non-Debian systems, so we can't use this.
1131 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1132 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1134 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1135 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1136 dnl Don't use GZIP, which is used by gzip for additional parameters.
1137 AC_PATH_PROG(GZIP_PROG, gzip)
1139 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1140 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1142 if test $opsys = gnu-linux; then
1143 AC_PATH_PROG(PAXCTL, paxctl,,
1144 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1145 if test "X$PAXCTL" != X; then
1146 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1147 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1148 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1149 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1152 if test "${SETFATTR+set}" != set; then
1153 AC_CACHE_CHECK([for setfattr],
1154 [emacs_cv_prog_setfattr],
1156 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1157 emacs_cv_prog_setfattr=yes
1159 emacs_cv_prog_setfattr=no
1161 if test "$emacs_cv_prog_setfattr" = yes; then
1167 AC_SUBST([SETFATTR])
1171 ## Need makeinfo >= 4.7 (?) to build the manuals.
1172 if test "$MAKEINFO" != "no"; then
1173 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1176 case `($MAKEINFO --version) 2>/dev/null` in
1177 *' (GNU texinfo) '4.[[7-9]]* | \
1178 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1179 *' (GNU texinfo) '[[5-9]]* | \
1180 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1185 ## Makeinfo is unusual. For a released Emacs, the manuals are
1186 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1187 ## therefore in the category of "special tools" not normally required, which
1188 ## configure does not have to check for (eg autoconf itself).
1189 ## In a repository checkout on the other hand, the manuals are not included.
1190 ## So makeinfo is a requirement to build from the repository, and configure
1191 ## should test for it as it does for any other build requirement.
1192 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1193 ## with pre-built manuals, from a repository checkout.
1196 if test "$MAKEINFO" = "no"; then
1198 if test "x${with_makeinfo}" = "xno"; then
1200 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1201 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1202 source tree does not seem to have pre-built manuals in the 'info' directory.
1203 Either install a suitable version of makeinfo, or re-run configure
1204 with the '--without-makeinfo' option to build without the manuals.] )
1207 AC_SUBST(HAVE_MAKEINFO)
1209 if test $opsys = mingw32; then
1210 DOCMISC_W32=efaq-w32
1214 AC_SUBST(DOCMISC_W32)
1216 dnl Add our options to ac_link now, after it is set up.
1218 if test x$GCC = xyes; then
1219 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1220 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1222 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1223 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1226 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1227 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1228 dnl (Don't use '-z nocombreloc' as -z takes no arg on Irix.)
1229 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1230 dnl if not built to support GNU ld.
1232 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1233 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1234 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1235 dnl Eg "make LDFLAGS=... all" could run into problems,
1236 dnl http://bugs.debian.org/684788
1237 dnl * unnecessary, since temacs is the only thing that actually needs it.
1238 dnl Indeed this is where it was originally, prior to:
1239 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1240 late_LDFLAGS="$LDFLAGS"
1241 if test x$GCC = xyes; then
1242 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1244 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1247 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1249 AC_MSG_CHECKING([for -znocombreloc])
1250 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1251 [AC_MSG_RESULT(yes)],
1252 LDFLAGS_NOCOMBRELOC=
1253 [AC_MSG_RESULT(no)])
1255 LDFLAGS="$late_LDFLAGS"
1257 AC_CACHE_CHECK([whether addresses are sanitized],
1258 [emacs_cv_sanitize_address],
1261 [[#ifndef __has_feature
1262 #define __has_feature(f) 0
1264 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1266 error "Addresses are not sanitized.";
1269 [emacs_cv_sanitize_address=yes],
1270 [emacs_cv_sanitize_address=no])])
1272 dnl The function dump-emacs will not be defined and temacs will do
1273 dnl (load "loadup") automatically unless told otherwise.
1274 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1276 nacl) CANNOT_DUMP=yes ;;
1279 if test "$CANNOT_DUMP" = "yes"; then
1280 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1281 elif test "$emacs_cv_sanitize_address" = yes; then
1282 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1285 AC_SUBST(CANNOT_DUMP)
1288 UNEXEC_OBJ=unexelf.o
1290 # MSDOS uses unexcoff.o
1292 UNEXEC_OBJ=unexaix.o
1298 UNEXEC_OBJ=unexmacosx.o
1301 UNEXEC_OBJ=unexhp9k800.o
1304 UNEXEC_OBJ=unexw32.o
1307 # Use the Solaris dldump() function, called from unexsol.c, to dump
1308 # emacs, instead of the generic ELF dump code found in unexelf.c.
1309 # The resulting binary has a complete symbol table, and is better
1310 # for debugging and other observability tools (debuggers, pstack, etc).
1312 # If you encounter a problem using dldump(), please consider sending
1313 # a message to the OpenSolaris tools-linking mailing list:
1314 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1316 # It is likely that dldump() works with older Solaris too, but this has
1317 # not been tested, so for now this change is for Solaris 10 or newer.
1318 UNEXEC_OBJ=unexsol.o
1325 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1326 ## The system compiler, GCC, has apparently been modified to not
1327 ## look there, contrary to what a stock GCC would do.
1328 ### It's not our place to do this. See bug#10313#17.
1329 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1334 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1335 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1339 ### It's not our place to do this. See bug#10313#17.
1340 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1345 ## Han Boetes <han@boetes.org> says this is necessary,
1346 ## otherwise Emacs dumps core on elf systems.
1347 LD_SWITCH_SYSTEM="-Z"
1350 AC_SUBST(LD_SWITCH_SYSTEM)
1352 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1354 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1355 ## which has not been defined yet. When this was handled with cpp,
1356 ## it was expanded to null when configure sourced the s/*.h file.
1357 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1358 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1359 ## (or somesuch), but because it is supposed to go at the _front_
1360 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1361 ## Compare with the gnu-linux case below, which added to the end
1362 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1363 ## LD_SWITCH_SYSTEM_TEMACS.
1366 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1373 AC_CHECK_DECL([__ELF__])
1374 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1375 ## With ELF, make sure that all common symbols get allocated to in the
1376 ## data section. Otherwise, the dump of temacs may miss variables in
1377 ## the shared library that have been initialized. For example, with
1378 ## GNU libc, __malloc_initialized would normally be resolved to the
1379 ## shared library's .bss section, which is fatal.
1380 if test "x$GCC" = "xyes"; then
1381 C_SWITCH_MACHINE="-fno-common"
1383 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1386 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1387 dnl albeit under the mistaken assumption that said file
1388 dnl was no longer used.
1389 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1393 AC_SUBST(C_SWITCH_MACHINE)
1395 AC_SUBST(UNEXEC_OBJ)
1398 ## Some programs in src produce warnings saying certain subprograms
1399 ## are too complex and need a MAXMEM value greater than 2000 for
1400 ## additional optimization. --nils@exp-math.uni-essen.de
1401 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1402 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1403 if test "$opsys" = "mingw32"; then
1404 case "$canonical" in
1405 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1406 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1409 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1410 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1411 AC_SUBST(C_SWITCH_SYSTEM)
1416 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1417 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1419 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1421 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1423 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1425 ## Motif needs -lgen.
1426 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1429 AC_SUBST(LIBS_SYSTEM)
1431 ### Make sure subsequent tests use flags consistent with the build flags.
1433 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1434 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1436 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1439 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1440 AC_DEFUN([AC_TYPE_SIZE_T])
1441 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1442 AC_DEFUN([AC_TYPE_UID_T])
1444 # sqrt and other floating-point functions such as fmod and frexp
1445 # are found in -lm on many systems.
1447 AC_SEARCH_LIBS([sqrt], [m])
1448 if test "X$LIBS" = "X$OLD_LIBS"; then
1451 LIB_MATH=$ac_cv_search_sqrt
1455 dnl Current possibilities handled by sed (aix4-2 -> aix,
1456 dnl gnu-linux -> gnu/linux, etc.):
1457 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1458 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1459 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1466 ## Adding -lm confuses the dynamic linker, so omit it.
1469 freebsd | dragonfly )
1470 SYSTEM_TYPE=berkeley-unix
1472 gnu-linux | gnu-kfreebsd )
1474 hpux10-20 | hpux11 )
1478 SYSTEM_TYPE=windows-nt
1480 dnl NB this may be adjusted below.
1482 SYSTEM_TYPE=berkeley-unix
1486 SYSTEM_TYPE=usg-unix-v
1492 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1493 [The type of system you are compiling for; sets 'system-type'.])
1496 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1497 pre_PKG_CONFIG_LIBS=$LIBS
1499 PKG_PROG_PKG_CONFIG(0.9.0)
1501 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1502 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1503 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1504 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1505 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1506 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1508 AC_DEFUN([EMACS_CHECK_MODULES],
1509 [PKG_CHECK_MODULES([$1], [$2],
1510 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1511 m4_default([$3], [HAVE_$1=yes])],
1512 [m4_default([$4], [HAVE_$1=no])])])
1515 if test "${with_sound}" != "no"; then
1516 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1517 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1518 have_sound_header=yes, [], [
1520 #define WIN32_LEAN_AND_MEAN
1521 #include <windows.h>
1524 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1525 AC_MSG_ERROR([OSS sound support requested but not found.])
1527 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1528 # Emulation library used on NetBSD.
1529 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1530 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1531 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1532 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1533 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1537 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1539 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1540 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1541 if test $HAVE_ALSA = yes; then
1542 SAVE_CFLAGS="$CFLAGS"
1544 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1545 LIBS="$ALSA_LIBS $LIBS"
1546 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1547 emacs_alsa_normal=yes,
1548 emacs_alsa_normal=no)
1549 if test "$emacs_alsa_normal" != yes; then
1550 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1551 [[snd_lib_error_set_handler (0);]])],
1552 emacs_alsa_subdir=yes,
1553 emacs_alsa_subdir=no)
1554 if test "$emacs_alsa_subdir" != yes; then
1555 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1557 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1560 CFLAGS="$SAVE_CFLAGS"
1562 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1563 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1564 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1565 elif test "${with_sound}" = "alsa"; then
1566 AC_MSG_ERROR([ALSA sound support requested but not found.])
1568 fi dnl with_sound = alsa|yes
1570 dnl Define HAVE_SOUND if we have sound support. We know it works and
1571 dnl compiles only on the specified platforms. For others, it
1572 dnl probably doesn't make sense to try.
1573 dnl FIXME So surely we should bypass this whole section if not using
1574 dnl one of these platforms?
1575 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1577 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1578 dnl Adjust the --with-sound help text if you change this.
1579 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1580 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1586 AC_SUBST(CFLAGS_SOUND)
1589 dnl checks for header files
1590 AC_CHECK_HEADERS_ONCE(
1595 sys/utsname.h pwd.h utmp.h util.h)
1597 AC_MSG_CHECKING(if personality LINUX32 can be set)
1598 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1599 emacs_cv_personality_linux32=yes,
1600 emacs_cv_personality_linux32=no)
1601 AC_MSG_RESULT($emacs_cv_personality_linux32)
1603 if test $emacs_cv_personality_linux32 = yes; then
1604 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1605 [Define to 1 if personality LINUX32 can be set.])
1608 # Note that Solaris has sys/sysinfo.h which defines struct
1609 # sysinfo as well. To make sure that we're using GNU/Linux
1610 # sysinfo, we explicitly set one of its fields.
1611 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1612 AC_MSG_CHECKING([if Linux sysinfo may be used])
1613 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1614 [[struct sysinfo si;
1617 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1618 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1619 if test $emacs_cv_linux_sysinfo = yes; then
1620 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1621 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1622 [[struct sysinfo si; return si.mem_unit]])],
1623 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1624 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1628 dnl On Solaris 8 there's a compilation warning for term.h because
1629 dnl it doesn't define 'bool'.
1630 AC_CHECK_HEADERS(term.h, , , -)
1632 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1634 if test $ac_cv_have_decl_sys_siglist != yes; then
1635 # For Tru64, at least:
1636 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1641 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1642 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1643 #if HAVE_SYS_SOCKET_H
1644 #include <sys/socket.h>
1646 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1647 #if HAVE_SYS_SOCKET_H
1648 #include <sys/socket.h>
1650 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1651 #if HAVE_SYS_SOCKET_H
1652 #include <sys/socket.h>
1655 dnl checks for structure members
1656 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1657 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1658 struct ifreq.ifr_addr,
1659 struct ifreq.ifr_addr.sa_len], , ,
1660 [AC_INCLUDES_DEFAULT
1661 #if HAVE_SYS_SOCKET_H
1662 #include <sys/socket.h>
1668 dnl Check for endianness.
1669 dnl AC_C_BIGENDIAN is done by gnulib.
1671 dnl check for Make feature
1674 dnl check if we have GCC and autodepend is on.
1675 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1676 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1677 SAVE_CFLAGS="$CFLAGS"
1678 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1679 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1680 CFLAGS="$SAVE_CFLAGS"
1681 test -f deps.d || ac_enable_autodepend=no
1683 AC_MSG_RESULT([$ac_enable_autodepend])
1684 if test $ac_enable_autodepend = yes; then
1688 AC_SUBST(AUTO_DEPEND)
1690 dnl checks for operating system services
1691 AC_SYS_LONG_FILE_NAMES
1693 #### Choose a window system.
1695 ## We leave window_system equal to none if
1696 ## we end up building without one. Any new window system should
1697 ## set window_system to an appropriate value and add objects to
1698 ## window-system-specific substs.
1702 if test "$no_x" != yes; then
1706 LD_SWITCH_X_SITE_RPATH=
1707 if test "${x_libraries}" != NONE; then
1708 if test -n "${x_libraries}"; then
1709 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1710 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1711 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1714 x_default_search_path=""
1715 x_search_path=${x_libraries}
1716 if test -z "${x_search_path}"; then
1717 x_search_path=/usr/lib
1719 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1720 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1722 ${x_library}/X11/%L/%T/%N%C%S:\
1723 ${x_library}/X11/%l/%T/%N%C%S:\
1724 ${x_library}/X11/%T/%N%C%S:\
1725 ${x_library}/X11/%L/%T/%N%S:\
1726 ${x_library}/X11/%l/%T/%N%S:\
1727 ${x_library}/X11/%T/%N%S"
1728 if test x"${x_default_search_path}" = x; then
1729 x_default_search_path=${x_search_path}
1731 x_default_search_path="${x_search_path}:${x_default_search_path}"
1735 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1737 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1738 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1741 if test x"${x_includes}" = x; then
1742 bitmapdir=/usr/include/X11/bitmaps
1744 # accumulate include directories that have X11 bitmap subdirectories
1746 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1747 if test -d "${bmd}/X11/bitmaps"; then
1748 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1750 if test -d "${bmd}/bitmaps"; then
1751 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1754 bitmapdir=${bmd_acc#:}
1757 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1759 NS_GNUSTEP_CONFIG=no
1762 tmp_CPPFLAGS="$CPPFLAGS"
1763 tmp_CFLAGS="$CFLAGS"
1764 CPPFLAGS="$CPPFLAGS -x objective-c"
1765 CFLAGS="$CFLAGS -x objective-c"
1768 if test "${with_ns}" != no; then
1769 if test "${opsys}" = darwin; then
1771 ns_appdir=`pwd`/nextstep/Emacs.app
1772 ns_appbindir=${ns_appdir}/Contents/MacOS
1773 ns_appresdir=${ns_appdir}/Contents/Resources
1774 ns_appsrc=Cocoa/Emacs.base
1775 ns_fontfile=macfont.o
1776 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1778 NS_GNUSTEP_CONFIG=yes
1779 GNU_OBJC_CFLAGS=$flags
1780 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1781 elif test -f $GNUSTEP_CONFIG_FILE; then
1783 dnl FIXME sourcing this several times in subshells seems inefficient.
1784 GNUSTEP_SYSTEM_HEADERS=$(
1785 . $GNUSTEP_CONFIG_FILE
1786 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1788 GNUSTEP_SYSTEM_LIBRARIES=$(
1789 . $GNUSTEP_CONFIG_FILE
1790 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1792 dnl I seemed to need these as well with GNUstep-startup 0.25.
1793 GNUSTEP_LOCAL_HEADERS=$(
1794 . $GNUSTEP_CONFIG_FILE
1795 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1797 GNUSTEP_LOCAL_LIBRARIES=$(
1798 . $GNUSTEP_CONFIG_FILE
1799 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1801 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1802 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1803 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1804 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1805 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1806 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1807 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1808 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1809 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1810 dnl If they had chosen to either define it or not, we could have
1811 dnl just used AC_CHECK_DECL here.
1812 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1813 emacs_cv_objc_exceptions,
1814 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1815 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1819 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1820 if test $emacs_cv_objc_exceptions = yes; then
1821 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1822 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1823 [Define if GNUstep uses ObjC exceptions.])
1824 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1827 if test $NS_IMPL_GNUSTEP = yes; then
1828 ns_appdir=`pwd`/nextstep/Emacs.app
1829 ns_appbindir=${ns_appdir}
1830 ns_appresdir=${ns_appdir}/Resources
1831 ns_appsrc=GNUstep/Emacs.base
1832 ns_fontfile=nsfont.o
1835 dnl This is only used while we test the NS headers, it gets reset below.
1836 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1837 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1839 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1840 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1841 are required for a Nextstep build are missing or cannot be compiled.
1842 Either fix this, or re-configure with the option '--without-ns'.])])
1845 if test "${NS_IMPL_COCOA}" = "yes"; then
1846 AC_MSG_CHECKING([for OSX 10.6 or newer])
1847 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1849 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1850 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1853 error "OSX 10.6 or newer required";
1857 ns_osx_have_106=yes,
1859 AC_MSG_RESULT([$ns_osx_have_106])
1861 if test $ns_osx_have_106 = no; then
1862 AC_MSG_ERROR([OSX 10.6 or newer is required]);
1867 AC_SUBST(LIBS_GNUSTEP)
1869 INSTALL_ARCH_INDEP_EXTRA=install-etc
1870 ns_self_contained=no
1873 if test "${HAVE_NS}" = yes; then
1874 if test "$with_toolkit_scroll_bars" = "no"; then
1875 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1878 window_system=nextstep
1879 # set up packaging dirs
1880 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1881 ns_self_contained=yes
1882 prefix=${ns_appresdir}
1883 exec_prefix=${ns_appbindir}
1884 dnl This one isn't really used, only archlibdir is.
1885 libexecdir="\${ns_appbindir}/libexec"
1886 archlibdir="\${ns_appbindir}/libexec"
1887 etcdocdir="\${ns_appresdir}/etc"
1888 etcdir="\${ns_appresdir}/etc"
1889 dnl FIXME maybe set datarootdir instead.
1890 dnl That would also get applications, icons, man.
1891 infodir="\${ns_appresdir}/info"
1892 mandir="\${ns_appresdir}/man"
1893 lispdir="\${ns_appresdir}/lisp"
1894 test "$locallisppathset" = no && locallisppath=""
1895 INSTALL_ARCH_INDEP_EXTRA=
1898 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1900 CFLAGS="$tmp_CFLAGS"
1901 CPPFLAGS="$tmp_CPPFLAGS"
1902 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1903 AC_SUBST(ns_self_contained)
1905 AC_SUBST(NS_OBJC_OBJ)
1916 if test "${with_w32}" != no; then
1919 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1920 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1921 cannot be found.])])
1924 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1927 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1932 if test "${opsys}" = "mingw32"; then
1933 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1934 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1935 #include <windows.h>
1936 #include <usp10.h>]],
1937 [[PIMAGE_NT_HEADERS pHeader;
1938 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1939 [emacs_cv_w32api=yes
1942 AC_MSG_RESULT($emacs_cv_w32api)
1943 if test "${emacs_cv_w32api}" = "no"; then
1944 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1955 if test "${HAVE_W32}" = "yes"; then
1956 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1957 if test "$with_toolkit_scroll_bars" = "no"; then
1958 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
1960 AC_CHECK_TOOL(WINDRES, [windres],
1961 [AC_MSG_ERROR([No resource compiler found.])])
1962 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1963 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1964 EMACSRES="emacs.res"
1965 case "$canonical" in
1966 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1967 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1969 dnl Construct something of the form "24,4,0,0" with 4 components.
1970 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
1972 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
1973 AC_SUBST(comma_version)
1974 AC_SUBST(comma_space_version)
1975 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
1976 if test "${opsys}" = "cygwin"; then
1977 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1978 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1979 # Tell the linker that emacs.res is an object (which we compile from
1980 # the rc file), not a linker script.
1981 W32_RES_LINK="-Wl,emacs.res"
1983 UPDATE_MANIFEST=update-game-score.exe.manifest
1984 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1985 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1986 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1987 W32_RES_LINK="\$(EMACSRES)"
1988 CLIENTRES="emacsclient.res"
1989 CLIENTW="emacsclientw\$(EXEEXT)"
1990 FIRSTFILE_OBJ=firstfile.o
1993 LIBS_ECLIENT="-lcomctl32"
1994 LIB_WSOCK32="-lwsock32"
1995 NTLIB="ntlib.$ac_objext"
1996 XARGS_LIMIT="-s 10000"
2002 AC_SUBST(EMACS_MANIFEST)
2003 AC_SUBST(UPDATE_MANIFEST)
2006 AC_SUBST(W32_RES_LINK)
2007 AC_SUBST(FIRSTFILE_OBJ)
2010 AC_SUBST(LIBS_ECLIENT)
2011 AC_SUBST(LIB_WSOCK32)
2013 AC_SUBST(XARGS_LIMIT)
2015 if test "${HAVE_W32}" = "yes"; then
2020 ## $window_system is now set to the window system we will
2023 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
2024 # Too many warnings for now.
2026 nw="$nw -Wsuggest-attribute=noreturn"
2027 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
2029 gl_WARN_ADD([-Wno-unused-variable])
2030 gl_WARN_ADD([-Wno-unused-but-set-variable])
2031 gl_WARN_ADD([-Wno-unused-but-set-parameter])
2039 case "${window_system}" in
2044 case "${with_x_toolkit}" in
2045 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2046 motif ) USE_X_TOOLKIT=MOTIF ;;
2048 term_header=gtkutil.h
2049 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2050 dnl USE_X_TOOLKIT is set.
2051 USE_X_TOOLKIT=none ;;
2052 gtk2 ) with_gtk2=yes
2053 term_header=gtkutil.h
2054 USE_X_TOOLKIT=none ;;
2055 gtk3 ) with_gtk3=yes
2056 term_header=gtkutil.h
2057 USE_X_TOOLKIT=none ;;
2058 no ) USE_X_TOOLKIT=none ;;
2059 dnl If user did not say whether to use a toolkit, make this decision later:
2060 dnl use the toolkit if we have gtk, or X11R5 or newer.
2061 * ) USE_X_TOOLKIT=maybe ;;
2065 term_header=nsterm.h
2068 term_header=w32term.h
2072 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2073 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2074 if test "$HAVE_XSERVER" = true ||
2075 test -n "$DISPLAY" ||
2077 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2078 test "$emacs_libX11" != '/usr/lib/libX11.*'
2081 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2082 were found. You should install the relevant development files for X
2083 and for the toolkit you want, such as Gtk+ or Motif. Also make
2084 sure you have development files for image handling, i.e.
2085 tiff, gif, jpeg, png and xpm.
2086 If you are sure you want Emacs compiled without X window support, pass
2092 # Does the opsystem file prohibit the use of the GNU malloc?
2093 # Assume not, until told otherwise.
2097 [whether malloc is Doug Lea style],
2098 [emacs_cv_var_doug_lea_malloc],
2099 [emacs_cv_var_doug_lea_malloc=no
2100 dnl Hooks do not work with address sanitization.
2101 if test "$emacs_cv_sanitize_address" != yes; then
2104 [[#include <malloc.h>
2105 static void hook (void) {}]],
2106 [[malloc_set_state (malloc_get_state ());
2107 __after_morecore_hook = hook;
2108 __malloc_initialize_hook = hook;]])],
2109 [emacs_cv_var_doug_lea_malloc=yes])
2111 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2113 system_malloc=$emacs_cv_sanitize_address
2118 ## darwin ld insists on the use of malloc routines in the System framework.
2119 darwin | mingw32 | nacl | sol2-10) system_malloc=yes ;;
2120 cygwin) hybrid_malloc=yes;;
2124 if test "${system_malloc}" = "yes"; then
2125 AC_DEFINE([SYSTEM_MALLOC], 1,
2126 [Define to 1 to use the system memory allocator, even if it is not
2130 (The GNU allocators don't work with this system configuration.)"
2132 elif test "$hybrid_malloc" = yes; then
2133 AC_DEFINE(HYBRID_MALLOC, 1,
2134 [Define to use gmalloc before dumping and the system malloc after.])
2136 GNU_MALLOC_reason="only before dumping"
2137 GMALLOC_OBJ=gmalloc.o
2140 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2141 VMLIMIT_OBJ=vm-limit.o
2143 AC_CHECK_HEADERS([sys/vlimit.h])
2144 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2147 [[extern char data_start[]; char ch;]],
2148 [[return data_start < &ch;]])],
2149 [emacs_cv_data_start=yes],
2150 [emacs_cv_data_start=no])])
2151 if test $emacs_cv_data_start = yes; then
2152 AC_DEFINE([HAVE_DATA_START], 1,
2153 [Define to 1 if data_start is the address of the start
2154 of the main data segment.])
2157 AC_SUBST(GMALLOC_OBJ)
2158 AC_SUBST(VMLIMIT_OBJ)
2160 if test "$doug_lea_malloc" = "yes" ; then
2161 if test "$GNU_MALLOC" = yes ; then
2163 (Using Doug Lea's new malloc from the GNU C Library.)"
2165 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2166 [Define to 1 if the system memory allocator is Doug Lea style,
2167 with malloc hooks and malloc_set_state.])
2169 ## Use mmap directly for allocating larger buffers.
2170 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2171 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2172 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2174 mingw32|gnu*) REL_ALLOC=no ;;
2178 if test x"${REL_ALLOC}" = x; then
2179 REL_ALLOC=${GNU_MALLOC}
2182 use_mmap_for_buffers=no
2184 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2188 if test $use_mmap_for_buffers = yes; then
2189 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2193 LIBS="$LIBS_SYSTEM $LIBS"
2195 dnl FIXME replace main with a function we actually want from this library.
2196 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2198 dnl Check for the POSIX thread library.
2200 AC_CHECK_HEADERS_ONCE(pthread.h)
2201 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2202 AC_CACHE_CHECK([for pthread library],
2203 [emacs_cv_pthread_lib],
2204 [emacs_cv_pthread_lib=no
2206 for emacs_pthread_lib in 'none needed' -lpthread; do
2207 case $emacs_pthread_lib in
2208 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2212 [[#include <pthread.h>
2214 sigset_t old_mask, new_mask;
2215 void noop (void) {}]],
2216 [[pthread_t th = pthread_self ();
2218 status += pthread_create (&th, 0, 0, 0);
2219 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2220 status += pthread_kill (th, 0);
2221 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2222 || defined DOUG_LEA_MALLOC)
2223 /* Test for pthread_atfork only if gmalloc uses it,
2224 as older-style hosts like MirBSD 10 lack it. */
2225 status += pthread_atfork (noop, noop, noop);
2228 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2230 if test "$emacs_cv_pthread_lib" != no; then
2234 if test "$emacs_cv_pthread_lib" != no; then
2235 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2236 case $emacs_cv_pthread_lib in
2237 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2239 ac_cv_func_pthread_sigmask=yes
2240 # Some systems optimize for single-threaded programs by default, and
2241 # need special flags to disable these optimizations. For example, the
2242 # definition of 'errno' in <errno.h>.
2245 AC_DEFINE([_REENTRANT], 1,
2246 [Define to 1 if your system requires this in multithreaded code.]);;
2248 AC_DEFINE([_THREAD_SAFE], 1,
2249 [Define to 1 if your system requires this in multithreaded code.]);;
2253 AC_SUBST([LIB_PTHREAD])
2255 dnl Check for need for bigtoc support on IBM AIX
2259 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2261 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2262 *) gdb_cv_bigtoc=-bbigtoc ;;
2265 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2266 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2271 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2272 # is for the tests that follow. We set them back later on.
2274 REAL_CFLAGS="$CFLAGS"
2275 REAL_CPPFLAGS="$CPPFLAGS"
2278 if test "${HAVE_X11}" = "yes"; then
2279 DEFS="$C_SWITCH_X_SITE $DEFS"
2280 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2282 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2283 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2285 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2286 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2287 # but it's more convenient here to set LD_RUN_PATH since this
2288 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2289 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2290 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2294 if test "${opsys}" = "gnu-linux"; then
2295 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2296 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2297 [[XOpenDisplay ("foo");]])],
2298 [xgnu_linux_first_failure=no],
2299 [xgnu_linux_first_failure=yes])
2300 if test "${xgnu_linux_first_failure}" = "yes"; then
2301 OLD_CPPFLAGS="$CPPFLAGS"
2303 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2304 LIBS="$LIBS -b i486-linuxaout"
2305 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2306 [[XOpenDisplay ("foo");]])],
2307 [xgnu_linux_second_failure=no],
2308 [xgnu_linux_second_failure=yes])
2309 if test "${xgnu_linux_second_failure}" = "yes"; then
2310 # If we get the same failure with -b, there is no use adding -b.
2311 # So leave it out. This plays safe.
2314 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2315 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2318 CPPFLAGS=$OLD_CPPFLAGS
2325 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2326 # header files included from there.
2327 AC_MSG_CHECKING(for Xkb)
2328 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2329 #include <X11/XKBlib.h>]],
2330 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2331 emacs_xkb=yes, emacs_xkb=no)
2332 AC_MSG_RESULT($emacs_xkb)
2333 if test $emacs_xkb = yes; then
2334 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2337 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2338 XScreenNumberOfScreen)
2341 if test "${window_system}" = "x11"; then
2342 AC_MSG_CHECKING(X11 version 6)
2343 AC_CACHE_VAL(emacs_cv_x11_version_6,
2344 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2345 [[#if XlibSpecificationRelease < 6
2348 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2349 if test $emacs_cv_x11_version_6 = yes; then
2350 AC_MSG_RESULT(6 or newer)
2351 AC_DEFINE(HAVE_X11R6, 1,
2352 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2353 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2354 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2358 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2359 [Define if you have usable X11R6-style XIM support.])
2363 AC_MSG_RESULT(before 6)
2368 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2370 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2371 if test "${with_rsvg}" != "no"; then
2372 RSVG_REQUIRED=2.11.0
2373 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2375 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2376 AC_SUBST(RSVG_CFLAGS)
2379 if test $HAVE_RSVG = yes; then
2380 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2381 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2382 # Windows loads librsvg dynamically
2383 if test "${opsys}" = "mingw32"; then
2391 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2392 if test "${with_imagemagick}" != "no"; then
2393 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2394 ## 6.8.2 makes Emacs crash; see Bug#13867.
2395 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2396 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2397 AC_SUBST(IMAGEMAGICK_CFLAGS)
2398 AC_SUBST(IMAGEMAGICK_LIBS)
2400 if test $HAVE_IMAGEMAGICK = yes; then
2401 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2404 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2405 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2406 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2416 gtk_term_header=$term_header
2419 if test "${opsys}" != "mingw32"; then
2420 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2423 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2425 dnl Checks for libraries.
2426 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2427 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2428 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2429 AC_MSG_ERROR($GTK_PKG_ERRORS)
2431 if test "$pkg_check_gtk" = "yes"; then
2432 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2433 GTK_OBJ=emacsgtkfixed.o
2434 gtk_term_header=gtkutil.h
2435 USE_GTK_TOOLKIT="GTK3"
2436 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2437 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2438 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2439 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2440 [Define to 1 to disable Glib deprecation warnings.])
2444 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2448 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2451 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2453 dnl Checks for libraries.
2454 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2455 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2456 if test "$pkg_check_gtk" = "no" &&
2457 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2459 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2461 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2468 if test x"$pkg_check_gtk" = xyes; then
2471 CFLAGS="$CFLAGS $GTK_CFLAGS"
2472 LIBS="$GTK_LIBS $LIBS"
2473 dnl Try to compile a simple GTK program.
2474 AC_MSG_CHECKING([whether GTK compiles])
2478 [[/* Check the Gtk and Glib APIs. */
2479 #include <gtk/gtk.h>
2480 #include <glib-object.h>
2482 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2486 GtkSettings *gs = 0;
2487 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2488 strict C prohibits this. Use gtk_main_iteration to test that the
2489 libraries are there. */
2490 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2491 0, 0, 0, G_CALLBACK (callback), 0))
2492 gtk_main_iteration ();
2495 AC_MSG_RESULT([$GTK_COMPILES])
2496 if test "${GTK_COMPILES}" != "yes"; then
2498 if test "$USE_X_TOOLKIT" != "maybe"; then
2499 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2502 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2504 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2505 GTK_OBJ="gtkutil.o $GTK_OBJ"
2506 term_header=$gtk_term_header
2508 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2509 closing open displays. This is no problem if you just use
2510 one display, but if you use more than one and close one of them
2512 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2520 if test "${HAVE_GTK}" = "yes"; then
2522 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2523 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2524 if test "$with_toolkit_scroll_bars" != no; then
2525 with_toolkit_scroll_bars=yes
2528 dnl Check if we have the old file selection dialog declared and
2529 dnl in the link library. In 2.x it may be in the library,
2530 dnl but not declared if deprecated featured has been selected out.
2531 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2532 HAVE_GTK_FILE_SELECTION=no
2533 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2534 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2535 #include <gtk/gtk.h>])
2536 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2537 AC_CHECK_FUNCS(gtk_file_selection_new)
2540 dnl Same as above for gtk_handle_box.
2541 HAVE_GTK_HANDLE_BOX=no
2542 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2543 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2544 #include <gtk/gtk.h>])
2545 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2546 AC_CHECK_FUNCS(gtk_handle_box_new)
2549 dnl Same as above for gtk_tearoff_menu_item.
2550 HAVE_GTK_TEAROFF_MENU_ITEM=no
2551 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2552 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2553 #include <gtk/gtk.h>])
2554 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2555 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2558 dnl Check for functions introduced in 2.14 and later.
2559 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2560 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2561 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2562 gtk_orientable_set_orientation \
2563 gtk_window_set_has_resize_grip)
2565 term_header=gtkutil.h
2573 if test "$with_xwidgets" != "no" && test "$USE_GTK_TOOLKIT" = "GTK3" &&
2574 test "$window_system" != "none"
2577 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2580 dnl - enable only if GTK3 is enabled, and we have a window system
2581 dnl - check for webkit and gobject introspection
2582 dnl webkit version for gtk3.
2583 WEBKIT_REQUIRED=1.4.0
2584 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2586 if test "${with_gtk3}" = "yes"; then
2587 PKG_CHECK_MODULES(WEBKIT, $WEBKIT_MODULES, HAVE_WEBKIT=yes, HAVE_WEBKIT=no)
2588 if test $HAVE_WEBKIT = yes; then
2589 AC_DEFINE([HAVE_WEBKIT_OSR], 1,
2590 [Define to 1 if you have webkit_osr support.])
2595 GIR_MODULES="gobject-introspection-1.0 >= $GIR_REQUIRED"
2596 PKG_CHECK_MODULES(GIR, $GIR_MODULES, HAVE_GIR=yes, HAVE_GIR=no)
2597 if test $HAVE_GIR = yes; then
2598 AC_DEFINE([HAVE_GIR], 1, [Define to 1 if you have GIR support.])
2600 XWIDGETS_OBJ=xwidget.o
2602 AC_SUBST(XWIDGETS_OBJ)
2607 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2608 dnl other platforms.
2611 if test "${with_dbus}" = "yes"; then
2612 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2613 if test "$HAVE_DBUS" = yes; then
2614 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2615 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2616 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2619 LIBS="$LIBS $DBUS_LIBS"
2620 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2621 dbus_type_is_valid \
2622 dbus_validate_bus_name \
2623 dbus_validate_path \
2624 dbus_validate_interface \
2625 dbus_validate_member)
2630 AC_SUBST(DBUS_CFLAGS)
2634 dnl GSettings has been tested under GNU/Linux only.
2636 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2637 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2638 if test "$HAVE_GSETTINGS" = "yes"; then
2640 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2642 LIBS="$LIBS $GSETTINGS_LIBS"
2643 AC_MSG_CHECKING([whether GSettings is in gio])
2646 [[/* Check that gsettings really is present. */
2647 #include <glib-object.h>
2648 #include <gio/gio.h>
2651 GSettings *settings;
2652 GVariant *val = g_settings_get_value (settings, "");
2654 [], HAVE_GSETTINGS=no)
2655 AC_MSG_RESULT([$HAVE_GSETTINGS])
2657 if test "$HAVE_GSETTINGS" = "yes"; then
2658 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2659 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2660 SETTINGS_LIBS="$GSETTINGS_LIBS"
2667 dnl GConf has been tested under GNU/Linux only.
2668 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2670 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2671 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2672 if test "$HAVE_GCONF" = yes; then
2673 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2674 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2675 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2676 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2680 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2681 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2682 if test "$HAVE_GOBJECT" = "yes"; then
2683 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2684 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2686 SAVE_CFLAGS="$CFLAGS"
2688 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2689 LIBS="$SETTINGS_LIBS $LIBS"
2690 CFLAGS="$SAVE_CFLAGS"
2693 AC_SUBST(SETTINGS_CFLAGS)
2694 AC_SUBST(SETTINGS_LIBS)
2697 dnl SELinux is available for GNU/Linux only.
2700 if test "${with_selinux}" = "yes"; then
2701 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2702 if test "$HAVE_LIBSELINUX" = yes; then
2703 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2704 LIBSELINUX_LIBS=-lselinux
2707 AC_SUBST(LIBSELINUX_LIBS)
2710 if test "${with_gnutls}" = "yes" ; then
2711 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2712 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2713 if test "${HAVE_GNUTLS}" = "yes"; then
2714 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2715 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2716 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2719 # Windows loads GnuTLS dynamically
2720 if test "${opsys}" = "mingw32"; then
2725 AC_SUBST(LIBGNUTLS_LIBS)
2726 AC_SUBST(LIBGNUTLS_CFLAGS)
2731 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2732 dnl a particular library. This doesn't make much sense?
2733 if test "${HAVE_NS}" = yes && test ${with_file_notification} = yes; then
2734 with_file_notification=no
2737 dnl MS Windows native file monitor is available for mingw32 only.
2738 case $with_file_notification,$opsys in
2740 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2741 this is only supported on MS-Windows native and MinGW32 builds.
2742 Consider using gfile instead.])
2744 w32,* | yes,mingw32)
2745 AC_CHECK_HEADER(windows.h)
2746 if test "$ac_cv_header_windows_h" = yes ; then
2747 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2748 NOTIFY_OBJ=w32notify.o
2749 NOTIFY_SUMMARY="yes (w32)"
2753 dnl inotify is available only on GNU/Linux.
2754 case $with_file_notification,$NOTIFY_OBJ in
2756 AC_CHECK_HEADER(sys/inotify.h)
2757 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2758 AC_CHECK_FUNC(inotify_init1)
2759 if test "$ac_cv_func_inotify_init1" = yes; then
2760 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2761 NOTIFY_OBJ=inotify.o
2762 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2767 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2768 dnl has been added in glib 2.24. It has been tested under
2770 case $with_file_notification,$NOTIFY_OBJ in
2772 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2773 if test "$HAVE_GFILENOTIFY" = "yes"; then
2774 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2775 NOTIFY_OBJ=gfilenotify.o
2776 NOTIFY_SUMMARY="yes -lgio (gfile)"
2780 case $with_file_notification,$NOTIFY_OBJ in
2781 yes,* | no,* | *,?*) ;;
2782 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2785 if test -n "$NOTIFY_OBJ"; then
2786 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2788 AC_SUBST(NOTIFY_OBJ)
2789 AC_SUBST(GFILENOTIFY_CFLAGS)
2790 AC_SUBST(GFILENOTIFY_LIBS)
2792 dnl Do not put whitespace before the #include statements below.
2793 dnl Older compilers (eg sunos4 cc) choke on it.
2796 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2797 if test "$with_xaw3d" != no; then
2798 AC_CACHE_VAL(emacs_cv_xaw3d,
2799 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2800 #include <X11/Intrinsic.h>
2801 #include <X11/Xaw3d/Simple.h>]],
2803 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2804 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2805 emacs_cv_xaw3d=no)])
2809 if test $emacs_cv_xaw3d = yes; then
2810 AC_MSG_CHECKING(for xaw3d)
2811 AC_MSG_RESULT([yes; using Lucid toolkit])
2815 AC_DEFINE(HAVE_XAW3D, 1,
2816 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2818 AC_MSG_CHECKING(for xaw3d)
2820 AC_MSG_CHECKING(for libXaw)
2821 AC_CACHE_VAL(emacs_cv_xaw,
2822 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2823 #include <X11/Intrinsic.h>
2824 #include <X11/Xaw/Simple.h>]],
2828 if test $emacs_cv_xaw = yes; then
2829 AC_MSG_RESULT([yes; using Lucid toolkit])
2832 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2833 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2835 AC_MSG_ERROR([No X toolkit could be found.
2836 If you are sure you want Emacs compiled without an X toolkit, pass
2838 to configure. Otherwise, install the development libraries for the toolkit
2839 that you want to use (e.g. Gtk+) and re-run configure.])
2844 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2848 if test "${USE_X_TOOLKIT}" != "none"; then
2849 AC_MSG_CHECKING(X11 toolkit version)
2850 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2851 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2852 [[#if XtSpecificationRelease < 6
2855 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2856 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2857 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2858 AC_MSG_RESULT(6 or newer)
2859 AC_DEFINE(HAVE_X11XTR6, 1,
2860 [Define to 1 if you have the X11R6 or newer version of Xt.])
2861 LIBXTR6="-lSM -lICE"
2863 ## Use libw.a along with X11R6 Xt.
2864 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2867 AC_MSG_RESULT(before 6)
2870 dnl If using toolkit, check whether libXmu.a exists.
2871 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2873 if test x$HAVE_X11XTR6 = xyes; then
2874 OTHERLIBS='-lXt -lSM -lICE'
2878 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2879 if test "X$LIBS" != "X$OLDLIBS"; then
2880 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2883 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2889 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2890 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2891 if test -d /usr/include/openmotif; then
2892 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2893 emacs_cv_openmotif=yes
2894 case "$canonical" in
2895 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2896 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2899 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2902 emacs_cv_openmotif=no
2904 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2905 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2906 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2909 Motif version prior to 2.1.
2911 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2912 if test $emacs_cv_motif_version_2_1 = yes; then
2913 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2914 if test x$emacs_cv_openmotif = xyes; then
2915 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2918 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2919 # We put this in CFLAGS temporarily to precede other -I options
2920 # that might be in CFLAGS temporarily.
2921 # We put this in CPPFLAGS where it precedes the other -I options.
2922 OLD_CPPFLAGS=$CPPFLAGS
2924 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2925 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2926 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2928 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2929 if test $emacs_cv_lesstif = yes; then
2930 # Make sure this -I option remains in CPPFLAGS after it is set
2931 # back to REAL_CPPFLAGS.
2932 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2933 # have those other -I options anyway. Ultimately, having this
2934 # directory ultimately in CPPFLAGS will be enough.
2935 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2936 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2939 CPPFLAGS=$OLD_CPPFLAGS
2942 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2943 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2946 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2947 dnl using Motif or Xaw3d is available, and unless
2948 dnl --with-toolkit-scroll-bars=no was specified.
2950 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2951 [Define to 1 if we should use toolkit scroll bars.])dnl
2952 USE_TOOLKIT_SCROLL_BARS=no
2953 if test "${with_toolkit_scroll_bars}" != "no"; then
2954 if test "${USE_X_TOOLKIT}" != "none"; then
2955 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2956 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2958 USE_TOOLKIT_SCROLL_BARS=yes
2959 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2960 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2961 USE_TOOLKIT_SCROLL_BARS=yes
2963 elif test "${HAVE_GTK}" = "yes"; then
2964 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2965 USE_TOOLKIT_SCROLL_BARS=yes
2966 elif test "${HAVE_NS}" = "yes"; then
2967 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2968 USE_TOOLKIT_SCROLL_BARS=yes
2969 elif test "${HAVE_W32}" = "yes"; then
2970 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2971 USE_TOOLKIT_SCROLL_BARS=yes
2975 dnl See if XIM is available.
2976 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2977 #include <X11/Xlib.h>
2978 #include <X11/Xresource.h>]],
2979 [[XIMProc callback;]])],
2981 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2984 dnl '--with-xim' now controls only the initial value of use_xim at run time.
2986 if test "${with_xim}" != "no"; then
2987 AC_DEFINE(USE_XIM, 1,
2988 [Define to 1 if we should use XIM, if it is available.])
2992 if test "${HAVE_XIM}" != "no"; then
2994 if test "$GCC" = yes; then
2995 CFLAGS="$CFLAGS --pedantic-errors"
2997 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2998 #include <X11/Xlib.h>
2999 #include <X11/Xresource.h>]],
3005 XPointer *client_data;
3007 /* If we're not using GCC, it's probably not XFree86, and this is
3008 probably right, but we can't use something like --pedantic-errors. */
3009 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3010 char*, XIMProc, XPointer*);
3012 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3014 [emacs_cv_arg6_star=yes])
3015 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3016 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3017 either XPointer or XPointer*.])dnl
3018 if test "$emacs_cv_arg6_star" = yes; then
3019 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3021 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3026 ### Start of font-backend (under any platform) section.
3027 # (nothing here yet -- this is a placeholder)
3028 ### End of font-backend (under any platform) section.
3030 ### Start of font-backend (under X11) section.
3031 if test "${HAVE_X11}" = "yes"; then
3032 ## Use -lXft if available, unless '--with-xft=no'.
3034 if test "x${with_x}" = "xno"; then
3038 if test "$with_xft" != no; then
3039 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3040 with_xft=$HAVE_FONTCONFIG
3043 if test "x${with_xft}" != "xno"; then
3045 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3046 ## Because xftfont.c uses XRenderQueryExtension, we also
3047 ## need to link to -lXrender.
3049 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3050 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3051 OLD_CPPFLAGS="$CPPFLAGS"
3052 OLD_CFLAGS="$CFLAGS"
3054 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3055 CFLAGS="$CFLAGS $XFT_CFLAGS"
3056 XFT_LIBS="-lXrender $XFT_LIBS"
3057 LIBS="$XFT_LIBS $LIBS"
3058 AC_CHECK_HEADER(X11/Xft/Xft.h,
3059 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3060 [[#include <X11/X.h>]])
3062 if test "${HAVE_XFT}" = "yes"; then
3063 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3065 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3066 fi # "${HAVE_XFT}" = "yes"
3067 CPPFLAGS=$OLD_CPPFLAGS
3070 fi # "$HAVE_XFT" != no
3071 fi # "x${with_xft}" != "xno"
3073 ## We used to allow building with FreeType and without Xft.
3074 ## However, the ftx font backend driver is not in good shape.
3075 if test "$HAVE_XFT" != "yes"; then
3076 dnl For the "Does Emacs use" message at the end.
3080 dnl Strict linkers fail with
3081 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3082 dnl if -lfreetype is not specified.
3083 dnl The following is needed to set FREETYPE_LIBS.
3084 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3086 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3090 if test "${HAVE_FREETYPE}" = "yes"; then
3091 AC_DEFINE(HAVE_FREETYPE, 1,
3092 [Define to 1 if using the freetype and fontconfig libraries.])
3093 if test "${with_libotf}" != "no"; then
3094 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3095 if test "$HAVE_LIBOTF" = "yes"; then
3096 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3097 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3098 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3099 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3100 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3101 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3102 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3106 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3107 dnl Does the new font backend require it, or can it work without it?
3111 if test "${HAVE_LIBOTF}" = yes; then
3112 if test "${with_m17n_flt}" != "no"; then
3113 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3114 if test "$HAVE_M17N_FLT" = "yes"; then
3115 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3126 ### End of font-backend (under X11) section.
3128 AC_SUBST(FREETYPE_CFLAGS)
3129 AC_SUBST(FREETYPE_LIBS)
3130 AC_SUBST(FONTCONFIG_CFLAGS)
3131 AC_SUBST(FONTCONFIG_LIBS)
3132 AC_SUBST(LIBOTF_CFLAGS)
3133 AC_SUBST(LIBOTF_LIBS)
3134 AC_SUBST(M17N_FLT_CFLAGS)
3135 AC_SUBST(M17N_FLT_LIBS)
3138 if test "${HAVE_X11}" = "yes"; then
3139 if test "${with_cairo}" != "no"; then
3140 CAIRO_REQUIRED=1.12.0
3141 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3142 PKG_CHECK_MODULES(CAIRO, $CAIRO_MODULE, USE_CAIRO=yes, :)
3143 if test $USE_CAIRO = yes; then
3144 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3146 AC_MSG_ERROR([cairo requested but not found.])
3149 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3150 LIBS="$LIBS $CAIRO_LIBS"
3151 AC_SUBST(CAIRO_CFLAGS)
3152 AC_SUBST(CAIRO_LIBS)
3156 if test "${HAVE_X11}" = "yes"; then
3157 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3158 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3159 if test "${HAVE_XCB}" = "yes"; then
3160 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3161 if test "${HAVE_X11_XCB}" = "yes"; then
3162 AC_DEFINE(USE_XCB, 1,
3163 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3164 X11/XCB programming.])
3165 XCB_LIBS="-lX11-xcb -lxcb"
3171 ### Use -lXpm if available, unless '--with-xpm=no'.
3172 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3173 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3174 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3175 ### LDFLAGS) accordingly.
3178 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3179 if test "${with_xpm}" != "no"; then
3180 SAVE_CPPFLAGS="$CPPFLAGS"
3181 SAVE_LDFLAGS="$LDFLAGS"
3182 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3183 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3184 AC_CHECK_HEADER(X11/xpm.h,
3185 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3186 if test "${HAVE_XPM}" = "yes"; then
3187 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3188 AC_EGREP_CPP(no_return_alloc_pixels,
3189 [#include "X11/xpm.h"
3190 #ifndef XpmReturnAllocPixels
3191 no_return_alloc_pixels
3193 ], HAVE_XPM=no, HAVE_XPM=yes)
3195 if test "${HAVE_XPM}" = "yes"; then
3196 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3200 CPPFLAGS="$SAVE_CPPFLAGS"
3201 LDFLAGS="$SAVE_LDFLAGS"
3206 if test "${HAVE_XPM}" = "yes"; then
3207 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3212 if test "${HAVE_X11}" = "yes"; then
3213 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3214 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3216 if test "${with_xpm}" != "no"; then
3217 AC_CHECK_HEADER(X11/xpm.h,
3218 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3219 if test "${HAVE_XPM}" = "yes"; then
3220 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3221 AC_EGREP_CPP(no_return_alloc_pixels,
3222 [#include "X11/xpm.h"
3223 #ifndef XpmReturnAllocPixels
3224 no_return_alloc_pixels
3226 ], HAVE_XPM=no, HAVE_XPM=yes)
3228 if test "${HAVE_XPM}" = "yes"; then
3236 if test "${HAVE_XPM}" = "yes"; then
3237 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3239 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3240 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3245 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3246 ### slightly different requirements wrt image libraries (it doesn't
3247 ### use -lXpm because it loads the xpm shared library dynamically at
3249 if test "${opsys}" = "mingw32"; then
3250 if test "${with_xpm}" != "no"; then
3251 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3255 if test "${HAVE_XPM}" = "yes"; then
3256 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3262 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3265 if test "${with_jpeg}" != "no"; then
3266 AC_CACHE_CHECK([for jpeglib 6b or later],
3269 for emacs_cv_jpeglib in yes -ljpeg no; do
3270 case $emacs_cv_jpeglib in
3273 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3277 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3278 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3279 #include <jpeglib.h>
3281 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3282 struct jpeg_decompress_struct cinfo;
3285 jpeg_create_decompress (&cinfo);
3286 WARNMS (&cinfo, JWRN_JPEG_EOF);
3287 jpeg_destroy_decompress (&cinfo);
3289 [emacs_link_ok=yes],
3292 test $emacs_link_ok = yes && break
3294 if test "$emacs_cv_jpeglib" != no; then
3296 AC_DEFINE([HAVE_JPEG], 1,
3297 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3298 ### mingw32 doesn't use -ljpeg, since it loads the library
3299 ### dynamically when needed, and doesn't want a run-time
3300 ### dependency on the jpeglib DLL.
3301 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3302 && LIBJPEG=$emacs_cv_jpeglib
3309 if test "${with_zlib}" != "no"; then
3311 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3313 case $ac_cv_search_inflateEnd in
3314 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3317 if test "${HAVE_ZLIB}" = "yes"; then
3318 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3319 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3320 if test "${opsys}" = "mingw32"; then
3326 ### Dynamic modules support
3331 if test "${with_modules}" != "no"; then
3332 if test "$opsys" = "gnu-linux"; then
3334 MODULES_SUFFIX=".so"
3336 elif test "$opsys" = "cygwin"; then
3337 MODULES_SUFFIX=".dll"
3339 elif test "$opsys" = "darwin"; then
3340 MODULES_SUFFIX=".so"
3342 elif test "$opsys" = "mingw32"; then
3343 MODULES_SUFFIX=".dll"
3346 # BSD system have dlopen in the libc
3347 AC_CHECK_FUNC(dlopen, [MODULES_SUFFIX=".so"]
3348 [HAVE_MODULES=yes], [])
3351 if test "${HAVE_MODULES}" = no; then
3352 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3355 LIBS="$LIBS $LIBMODULES"
3356 AC_CHECK_FUNCS([dlfunc])
3361 if test "${HAVE_MODULES}" = yes; then
3362 MODULES_OBJ="dynlib.o emacs-module.o"
3363 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3364 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3365 [System extension for dynamic libraries])
3367 AC_SUBST(MODULES_OBJ)
3368 AC_SUBST(LIBMODULES)
3369 AC_CHECK_FUNCS(dladdr)
3371 ### Use -lpng if available, unless '--with-png=no'.
3375 if test "${NS_IMPL_COCOA}" = yes; then
3377 elif test "${with_png}" != no; then
3378 # mingw32 loads the library dynamically.
3379 if test "$opsys" = mingw32; then
3380 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3381 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3382 AC_MSG_CHECKING([for png])
3383 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3384 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3385 # libpng-config does not work; configure by hand.
3386 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3387 # in /usr/include/libpng.
3388 if test -r /usr/include/libpng/png.h &&
3389 test ! -r /usr/include/png.h; then
3390 png_cflags=-I/usr/include/libpng
3398 CFLAGS="$CFLAGS $png_cflags"
3399 LIBS="$png_libs -lz -lm $LIBS"
3401 [AC_LANG_PROGRAM([[#include <png.h>]],
3402 [[return !png_get_channels (0, 0);]])],
3404 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3406 # $LIBPNG requires explicit -lz in some cases.
3407 # We don't know what those cases are, exactly, so play it safe and
3408 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3409 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3410 LIBPNG="$LIBPNG -lz"
3414 AC_MSG_RESULT([$HAVE_PNG])
3417 if test $HAVE_PNG = yes; then
3418 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3421 CFLAGS="$CFLAGS $PNG_CFLAGS"
3422 AC_CHECK_DECL([png_longjmp],
3424 [AC_DEFINE([PNG_DEPSTRUCT], [],
3425 [Define to empty to suppress deprecation warnings when building
3426 with --enable-gcc-warnings and with libpng versions before 1.5,
3427 which lack png_longjmp.])],
3433 AC_SUBST(PNG_CFLAGS)
3435 ### Use -ltiff if available, unless '--with-tiff=no'.
3436 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3439 if test "${opsys}" = "mingw32"; then
3440 if test "${with_tiff}" != "no"; then
3441 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3443 if test "${HAVE_TIFF}" = "yes"; then
3444 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3446 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3447 if test "${with_tiff}" != "no"; then
3448 AC_CHECK_HEADER(tiffio.h,
3450 # At least one tiff package requires the jpeg library.
3451 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3452 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3455 if test "${HAVE_TIFF}" = "yes"; then
3456 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3457 dnl FIXME -lz -lm, as per libpng?
3463 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3464 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3467 if test "${opsys}" = "mingw32"; then
3468 if test "${with_gif}" != "no"; then
3469 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3471 if test "${HAVE_GIF}" = "yes"; then
3472 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3474 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3475 || test "${HAVE_W32}" = "yes"; then
3476 AC_CHECK_HEADER(gif_lib.h,
3477 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3478 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3479 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3480 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3482 if test "$HAVE_GIF" = yes; then
3484 elif test "$HAVE_GIF" = maybe; then
3485 # If gif_lib.h but no libgif, try libungif.
3486 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3487 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3490 if test "${HAVE_GIF}" = "yes"; then
3491 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3496 dnl Check for required libraries.
3497 if test "${HAVE_X11}" = "yes"; then
3500 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3501 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3502 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3503 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3504 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3505 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3506 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3507 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3508 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3509 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3511 if test "X${MISSING}" != X; then
3512 AC_MSG_ERROR([The following required libraries were not found:
3514 Maybe some development libraries/packages are missing?
3515 If you don't want to link with them give
3517 as options to configure])
3521 ### Use -lgpm if available, unless '--with-gpm=no'.
3524 if test "${with_gpm}" != "no"; then
3525 AC_CHECK_HEADER(gpm.h,
3526 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3528 if test "${HAVE_GPM}" = "yes"; then
3529 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3535 dnl Check for malloc/malloc.h on darwin
3536 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3539 ### Use NeXTstep API to implement GUI.
3540 if test "${HAVE_NS}" = "yes"; then
3541 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3542 if test "${NS_IMPL_COCOA}" = "yes"; then
3543 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3545 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3546 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3547 if test $NS_GNUSTEP_CONFIG != yes; then
3548 # See also .m.o rule in src/Makefile.in. */
3549 # FIXME: are all these flags really needed? Document here why. */
3550 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3551 ## Extra CFLAGS applied to src/*.m files.
3552 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3558 ### Use session management (-lSM -lICE) if available
3561 if test "${HAVE_X11}" = "yes"; then
3562 AC_CHECK_HEADER(X11/SM/SMlib.h,
3563 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3565 if test "${HAVE_X_SM}" = "yes"; then
3566 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3572 ### Use XRandr (-lXrandr) if available
3574 if test "${HAVE_X11}" = "yes"; then
3575 XRANDR_REQUIRED=1.2.2
3576 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3577 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3578 if test $HAVE_XRANDR = no; then
3579 # Test old way in case pkg-config doesn't have it (older machines).
3580 # Include Xrender.h by hand to work around bug in older Xrandr.h
3581 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3582 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3583 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3584 [], [AC_INCLUDES_DEFAULT
3585 #include <X11/extensions/Xrender.h>])
3586 if test $HAVE_XRANDR = yes; then
3587 XRANDR_LIBS=-lXrandr
3590 if test $HAVE_XRANDR = yes; then
3591 SAVE_CFLAGS="$CFLAGS"
3593 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3594 LIBS="$XRANDR_LIBS $LIBS"
3595 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3596 CFLAGS="$SAVE_CFLAGS"
3599 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3602 AC_SUBST(XRANDR_CFLAGS)
3603 AC_SUBST(XRANDR_LIBS)
3605 ### Use Xinerama (-lXinerama) if available
3607 if test "${HAVE_X11}" = "yes"; then
3608 XINERAMA_REQUIRED=1.0.2
3609 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3610 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3611 if test $HAVE_XINERAMA = no; then
3612 # Test old way in case pkg-config doesn't have it (older machines).
3613 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3614 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3615 if test $HAVE_XINERAMA = yes; then
3616 XINERAMA_LIBS=-lXinerama
3619 if test $HAVE_XINERAMA = yes; then
3620 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3623 AC_SUBST(XINERAMA_CFLAGS)
3624 AC_SUBST(XINERAMA_LIBS)
3626 ### Use Xfixes (-lXfixes) if available
3628 if test "${HAVE_X11}" = "yes"; then
3629 XFIXES_REQUIRED=4.0.0
3630 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3631 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3632 if test $HAVE_XFIXES = no; then
3633 # Test old way in case pkg-config doesn't have it (older machines).
3634 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3635 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3636 if test $HAVE_XFIXES = yes; then
3637 XFIXES_LIBS=-lXfixes
3640 if test $HAVE_XFIXES = yes; then
3641 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3644 AC_SUBST(XFIXES_CFLAGS)
3645 AC_SUBST(XFIXES_LIBS)
3647 ### Use libxml (-lxml2) if available
3648 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3650 if test "${with_xml2}" != "no"; then
3651 ### I'm not sure what the version number should be, so I just guessed.
3652 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3653 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3654 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3655 SAVE_CPPFLAGS="$CPPFLAGS"
3656 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3657 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3658 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3660 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3664 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3665 AC_CHECK_HEADER(libxml/HTMLparser.h,
3666 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3667 [#include <libxml/HTMLparser.h>])])
3668 CPPFLAGS="$SAVE_CPPFLAGS"
3669 if test "${HAVE_LIBXML2}" = "yes"; then
3670 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3671 LIBXML2_LIBS="-lxml2"
3674 if test "${HAVE_LIBXML2}" = "yes"; then
3675 if test "${opsys}" != "mingw32"; then
3676 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3681 if test "${HAVE_LIBXML2}" = "yes"; then
3682 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3689 AC_SUBST(LIBXML2_LIBS)
3690 AC_SUBST(LIBXML2_CFLAGS)
3692 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3693 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3694 if test "${opsys}" = "mingw32"; then
3695 emacs_cv_netdb_declares_h_errno=yes
3697 AC_CACHE_CHECK(whether netdb declares h_errno,
3698 emacs_cv_netdb_declares_h_errno,
3699 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3700 [[return h_errno;]])],
3701 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3702 if test $emacs_cv_netdb_declares_h_errno = yes; then
3703 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3706 # Check for mail-locking functions in a "mail" library. Probably this should
3707 # have the same check as for liblockfile below.
3708 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3709 if test $have_mail = yes; then
3711 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3714 LIBS="$LIBS_MAIL $LIBS"
3715 AC_CHECK_FUNCS(touchlock)
3720 dnl Debian, at least:
3721 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3722 if test $have_lockfile = yes; then
3723 LIBS_MAIL=-llockfile
3724 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3726 # If we have the shared liblockfile, assume we must use it for mail
3727 # locking (e.g. Debian). If we couldn't link against liblockfile
3728 # (no liblockfile.a installed), ensure that we don't need to.
3729 dnl This works for files generally, not just executables.
3730 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3731 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3732 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3733 if test $ac_cv_prog_liblockfile = yes; then
3734 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3735 This probably means that movemail could lose mail.
3736 There may be a 'development' package to install containing liblockfile.])
3739 AC_CHECK_HEADERS_ONCE(maillock.h)
3742 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3743 ## interlock access to the mail spool. The alternative is a lock file named
3744 ## /usr/spool/mail/$USER.lock.
3747 aix4-2) mail_lock="lockf" ;;
3749 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3751 ## On GNU/Linux systems, both methods are used by various mail programs.
3752 ## I assume most people are using newer mailers that have heard of flock.
3753 ## Change this if you need to.
3754 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3755 ## configure gets the right answers, and that means *NOT* using flock.
3756 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3757 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3758 ## Debian maintainer hasn't provided a clean fix for Emacs.
3759 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3760 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3761 ## correct logic. -- fx
3762 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3763 ## liblockfile is a Free Software replacement for libmail, used on
3764 ## Debian systems and elsewhere. -rfr.
3767 if test $have_mail = yes || test $have_lockfile = yes; then
3768 test $ac_cv_header_maillock_h = yes && mail_lock=no
3773 mail_lock="none-needed" ;;
3777 case "$mail_lock" in
3778 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3780 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3784 *) BLESSMAIL_TARGET="need-blessmail" ;;
3786 AC_SUBST(BLESSMAIL_TARGET)
3789 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3790 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3791 getrusage get_current_dir_name \
3792 lrand48 random rint \
3793 select getpagesize setlocale newlocale \
3794 getrlimit setrlimit shutdown getaddrinfo \
3795 pthread_sigmask strsignal setitimer \
3796 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3798 getpwent endpwent getgrent endgrent \
3799 cfmakeraw cfsetspeed copysign __executable_start log2)
3802 dnl No need to check for aligned_alloc and posix_memalign if using
3803 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3804 dnl Don't use these functions on Darwin as they are incompatible with
3806 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3807 && test "$opsys" != darwin; then
3808 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3811 dnl Cannot use AC_CHECK_FUNCS
3812 AC_CACHE_CHECK([for __builtin_unwind_init],
3813 emacs_cv_func___builtin_unwind_init,
3814 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3815 emacs_cv_func___builtin_unwind_init=yes,
3816 emacs_cv_func___builtin_unwind_init=no)])
3817 if test $emacs_cv_func___builtin_unwind_init = yes; then
3818 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3819 [Define to 1 if you have the '__builtin_unwind_init' function.])
3822 AC_CHECK_HEADERS_ONCE(sys/un.h)
3827 AC_CHECK_FUNCS(grantpt)
3829 # PTY-related GNU extensions.
3830 AC_CHECK_FUNCS(getpt posix_openpt)
3832 # Check this now, so that we will NOT find the above functions in ncurses.
3833 # That is because we have not set up to link ncurses in lib-src.
3834 # It's better to believe a function is not available
3835 # than to expect to find it in ncurses.
3836 # Also we need tputs and friends to be able to build at all.
3837 AC_MSG_CHECKING([for library containing tputs])
3838 # Run a test program that contains a call to tputs, a call that is
3839 # never executed. This tests whether a pre-'main' dynamic linker
3840 # works with the library. It's too much trouble to actually call
3841 # tputs in the test program, due to portability hassles. When
3842 # cross-compiling, assume the test program will run if it links.
3843 AC_DEFUN([tputs_link_source], [
3845 [[extern void tputs (const char *, int, int (*)(int));
3846 int main (int argc, char **argv)
3849 tputs (argv[0], 0, 0);
3853 if test "${opsys}" = "mingw32"; then
3856 # Maybe curses should be tried earlier?
3857 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3858 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3860 if test -z "$tputs_library"; then
3864 LIBS_TERMCAP=-l$tputs_library
3866 LIBS="$LIBS_TERMCAP $LIBS"
3868 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3869 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3871 if test "X$msg" != Xno; then
3876 AC_MSG_RESULT([$msg])
3877 if test "X$msg" = Xno; then
3878 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3879 The following libraries were tried (in order):
3880 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3881 Please try installing whichever of these libraries is most appropriate
3882 for your system, together with its header files.
3883 For example, a libncurses-dev(el) or similar package.])
3886 ## Use termcap instead of terminfo?
3887 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3889 ## FIXME? In the cases below where we unconditionally set
3890 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3891 ## if that was found above to have tputs.
3892 ## Should we use the gnu* logic everywhere?
3894 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3895 ## The ncurses library has been moved out of the System framework in
3896 ## Mac OS X 10.2. So if configure detects it, set the command-line
3897 ## option to use it.
3898 darwin) LIBS_TERMCAP="-lncurses" ;;
3900 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3903 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3904 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3905 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3906 [[#if __FreeBSD_version < 400000
3909 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3911 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3913 if test $emacs_cv_freebsd_terminfo = yes; then
3914 LIBS_TERMCAP="-lncurses"
3917 LIBS_TERMCAP="-ltermcap"
3927 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3929 LIBS_TERMCAP="-ltermcap"
3933 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3935 ## hpux: Make sure we get select from libc rather than from libcurses
3936 ## because libcurses on HPUX 10.10 has a broken version of select.
3937 ## We used to use -lc -lcurses, but this may be cleaner.
3938 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3939 # set that way, now it uses the default). Isn't this a contradiction?
3940 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3944 TERMCAP_OBJ=tparam.o
3945 if test $TERMINFO = yes; then
3946 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3947 TERMCAP_OBJ=terminfo.o
3949 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3950 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3952 AC_SUBST(LIBS_TERMCAP)
3953 AC_SUBST(TERMCAP_OBJ)
3955 # GNU/Linux-specific timer functions.
3956 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3958 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3960 [[timerfd_create (CLOCK_REALTIME,
3961 TFD_CLOEXEC | TFD_NONBLOCK);
3962 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3963 [emacs_cv_have_timerfd=yes],
3964 [emacs_cv_have_timerfd=no])])
3965 if test "$emacs_cv_have_timerfd" = yes; then
3966 AC_DEFINE([HAVE_TIMERFD], 1,
3967 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3970 # Alternate stack for signal handlers.
3971 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3972 [emacs_cv_alternate_stack],
3974 [AC_LANG_PROGRAM([[#include <signal.h>
3977 struct sigaction sa;
3978 ss.ss_sp = malloc (SIGSTKSZ);
3979 ss.ss_size = SIGSTKSZ;
3980 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3981 sigaltstack (&ss, 0);
3982 sigaction (SIGSEGV, &sa, 0);]])],
3983 [emacs_cv_alternate_stack=yes],
3984 [emacs_cv_alternate_stack=no])])
3986 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3987 # On Darwin, res_init appears not to be useful: see bug#562 and
3988 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3991 if test $opsys != darwin; then
3993 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3994 #include <arpa/nameser.h>
3995 #include <resolv.h>]],
3996 [[return res_init();]])],
3997 have_res_init=yes, have_res_init=no)
3998 if test "$have_res_init" = no; then
4000 LIBS="$LIBS -lresolv"
4001 AC_MSG_CHECKING(for res_init with -lresolv)
4002 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
4003 #include <arpa/nameser.h>
4004 #include <resolv.h>]],
4005 [[return res_init();]])],
4006 have_res_init=yes, have_res_init=no)
4007 AC_MSG_RESULT($have_res_init)
4008 if test "$have_res_init" = yes ; then
4014 if test "$have_res_init" = yes; then
4015 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
4019 # Do we need the Hesiod library to provide the support routines?
4020 dnl FIXME? Should we be skipping this on Darwin too?
4022 if test "$with_hesiod" != no ; then
4023 # Don't set $LIBS here -- see comments above. FIXME which comments?
4024 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4025 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4026 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4027 if test "$resolv" = yes ; then
4032 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4033 hesiod=yes, :, $RESOLVLIB)])
4035 if test x"$hesiod" = xyes; then
4041 # Do we need libresolv (due to res_init or Hesiod)?
4042 if test "$resolv" = yes && test $opsys != darwin; then
4049 # These tell us which Kerberos-related libraries to use.
4056 if test "${with_kerberos}" != no; then
4058 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4059 if test $have_com_err = yes; then
4060 COM_ERRLIB=-lcom_err
4061 LIBS="$COM_ERRLIB $LIBS"
4063 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4064 if test $have_crypto = yes; then
4066 LIBS="$CRYPTOLIB $LIBS"
4068 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4069 if test $have_k5crypto = yes; then
4070 CRYPTOLIB=-lk5crypto
4071 LIBS="$CRYPTOLIB $LIBS"
4073 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4074 if test $have_krb5=yes; then
4076 LIBS="$KRB5LIB $LIBS"
4078 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4079 if test "${with_kerberos5}" = no; then
4080 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4081 if test $have_des425 = yes; then
4083 LIBS="$DESLIB $LIBS"
4085 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4086 if test $have_des = yes; then
4088 LIBS="$DESLIB $LIBS"
4091 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4092 if test $have_krb4 = yes; then
4094 LIBS="$KRB4LIB $LIBS"
4096 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4097 if test $have_krb = yes; then
4099 LIBS="$KRB4LIB $LIBS"
4104 if test "${with_kerberos5}" != no; then
4105 AC_CHECK_HEADERS(krb5.h,
4106 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4107 [#include <krb5.h>])])
4109 AC_CHECK_HEADERS(krb.h,,
4110 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4111 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4113 AC_CHECK_HEADERS(com_err.h)
4117 AC_SUBST(COM_ERRLIB)
4123 AC_CHECK_HEADERS(valgrind/valgrind.h)
4125 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4127 AC_CHECK_FUNCS_ONCE(tzset)
4130 AC_CHECK_FUNC(socket, , ok_so_far=no)
4131 if test $ok_so_far = yes; then
4132 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4134 if test $ok_so_far = yes; then
4135 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4137 if test $ok_so_far = yes; then
4138 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4139 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4140 [Define to 1 if you have inet sockets.])
4145 AC_CHECK_FUNCS(snprintf)
4147 dnl Check for glib. This differs from other library checks in that
4148 dnl Emacs need not link to glib unless some other library is already
4149 dnl linking to glib. Although glib provides no facilities that Emacs
4150 dnl needs for its own purposes, when glib is present Emacs needs to
4151 dnl use primitives like g_main_context_query to avoid clashing with
4152 dnl glib at a low level.
4154 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4158 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4159 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4160 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS $CAIRO_CFLAGS"
4161 LIBS="$LIBS $GFILENOTIFY_LIBS $CAIRO_LIBS"
4162 AC_MSG_CHECKING([whether GLib is linked in])
4163 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4166 [[g_print ("Hello world");]])],
4169 AC_MSG_RESULT([$links_glib])
4170 if test "${links_glib}" = "yes"; then
4171 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4172 if test "$HAVE_NS" = no;then
4180 dnl Adapted from Haible's version.
4181 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4182 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4183 [[char* cs = nl_langinfo(CODESET);]])],
4184 emacs_cv_langinfo_codeset=yes,
4185 emacs_cv_langinfo_codeset=no)
4187 if test $emacs_cv_langinfo_codeset = yes; then
4188 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4189 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4194 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4195 dnl how the tty code is related to POSIX and/or other versions of termios.
4196 dnl The following looks like a useful start.
4198 dnl AC_SYS_POSIX_TERMIOS
4199 dnl if test $ac_cv_sys_posix_termios = yes; then
4200 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4201 dnl and macros for terminal control.])
4202 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4205 dnl Turned on June 1996 supposing nobody will mind it.
4206 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4207 if test "${opsys}" != "mingw32"; then
4208 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4209 in the full name stands for the login id.])
4212 dnl Everybody supports this, except MS.
4213 dnl Seems like the kind of thing we should be testing for, though.
4214 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4215 if test "${opsys}" != "mingw32"; then
4216 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4219 dnl Everybody supports this, except MS-DOS.
4220 dnl Seems like the kind of thing we should be testing for, though.
4221 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4222 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4223 4.2-compatible sockets.])
4225 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4227 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4228 a null file, or a data sink.])
4229 if test "${opsys}" = "mingw32"; then
4230 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4232 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4235 if test "${opsys}" = "mingw32"; then
4240 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4241 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4242 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4243 dnl decides that a command-line argument to be passed to a MinGW program
4244 dnl is a PATH-style list of directories. But that heuristics plays it
4245 dnl safe, and only does the replacement when it is _absolutely_ sure it
4246 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4247 dnl which breaks in-tree builds. So we do this manually instead.
4248 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4249 dnl be computed as ':' in MSYS Bash.
4252 dnl Everybody supports this, except MS-DOS.
4253 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4255 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4258 AC_DEFINE(DIRECTORY_SEP, ['/'],
4259 [Character that separates directories in a file name.])
4261 if test "${opsys}" = "mingw32"; then
4262 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4263 [Returns true if character is a device separator.])
4265 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4266 [Returns true if character is a directory separator.])
4268 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4269 [Returns true if character is any form of separator.])
4271 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4272 [Returns true if character is a device separator.])
4274 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4275 [Returns true if character is a directory separator.])
4277 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4278 [Returns true if character is any form of separator.])
4281 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4285 dnl Unfortunately without libXmu we cannot support EditRes.
4286 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4287 AC_DEFINE(NO_EDITRES, 1)
4292 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4293 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4294 AC_DEFINE(NO_EDITRES, 1)
4300 irix6-5 | sol2* | unixware )
4301 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4302 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4303 dnl need the constant to dimension an array. So wire in the appropriate
4305 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4309 emacs_broken_SIGIO=no
4312 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4313 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4314 hpux* | irix6-5 | nacl | openbsd | sol2* | unixware )
4315 emacs_broken_SIGIO=yes
4319 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4320 dnl the way this system works, libc functions that return malloced
4321 dnl memory use the libc malloc implementation. Calling xfree or
4322 dnl xrealloc on the results of such functions results in a crash.
4324 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4325 dnl but that does not currently work on this system.
4327 dnl It is possible to completely override the malloc implementation on
4328 dnl AIX, but that involves putting the malloc functions in a shared
4329 dnl library and setting the MALLOCTYPE environment variable to point to
4330 dnl that shared library.
4332 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4333 dnl to avoid a crash just use the Emacs implementation for that function.
4335 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4336 dnl of this file, so that we do not check for get_current_dir_name
4337 dnl on AIX. But that might be fragile if something else ends
4338 dnl up testing for get_current_dir_name as a dependency.
4339 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4340 get_current_dir_name should not be used.])
4344 dnl Circumvent a bug in FreeBSD. In the following sequence of
4345 dnl writes/reads on a PTY, read(2) returns bogus data:
4347 dnl write(2) 1022 bytes
4348 dnl write(2) 954 bytes, get EAGAIN
4349 dnl read(2) 1024 bytes in process_read_output
4350 dnl read(2) 11 bytes in process_read_output
4352 dnl That is, read(2) returns more bytes than have ever been written
4353 dnl successfully. The 1033 bytes read are the 1022 bytes written
4354 dnl successfully after processing (for example with CRs added if the
4355 dnl terminal is set up that way which it is here). The same bytes will
4356 dnl be seen again in a later read(2), without the CRs.
4357 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4358 work around an issue when reading from a PTY.])
4364 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4365 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4370 darwin | dragonfly | freebsd | netbsd | openbsd )
4371 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4372 close a pty to make it a controlling terminal (it is already a
4373 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4377 dnl FIXME Surely we can test for this rather than hard-code it.
4379 netbsd | openbsd) sound_device="/dev/audio" ;;
4380 *) sound_device="/dev/dsp" ;;
4384 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4385 [Name of the default sound device.])
4388 dnl Emacs can read input using SIGIO and buffering characters itself,
4389 dnl or using CBREAK mode and making C-g cause SIGINT.
4390 dnl The choice is controlled by the variable interrupt_input.
4392 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4394 dnl Emacs uses the presence of the USABLE_SIGIO macro
4395 dnl to indicate whether or not signal-driven I/O is possible. It uses
4396 dnl INTERRUPT_INPUT to decide whether to use it by default.
4398 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4399 dnl CBREAK mode has two disadvantages
4400 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4401 dnl I hear that in system V this problem does not exist.
4402 dnl 2) Control-G causes output to be discarded.
4403 dnl I do not know whether this can be fixed in system V.
4405 dnl Another method of doing input is planned but not implemented.
4406 dnl It would have Emacs fork off a separate process
4407 dnl to read the input and send it to the true Emacs process
4410 darwin | gnu-linux | gnu-kfreebsd )
4411 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4416 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4417 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4418 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4419 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4420 dnl taking float or double parameters.
4422 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4423 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4424 file defines 'NeedWidePrototypes' as 'NO'.])
4429 dnl Used in process.c, this must be a loop, even if it only runs once.
4430 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4431 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4432 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4433 dnl trying suffixes 0-16.
4434 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4435 first PTY, if PTYs are supported.])
4436 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4437 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4438 end of a PTY, if non-standard.])
4439 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4440 end of a PTY, if non-standard.])
4444 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4445 dnl You allocate a pty by opening /dev/ptc to get the master side.
4446 dnl To get the name of the slave side, you just ttyname() the master side.
4447 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4448 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4452 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4453 dnl multi-line AC_DEFINEs are hard. :(
4454 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 (false)])
4455 AC_DEFINE(PTY_NAME_SPRINTF, [])
4456 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4460 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4463 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4465 if test "x$ac_cv_func_grantpt" = xyes; then
4466 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4467 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4468 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4469 dnl to prevent sigchld_handler from intercepting the child's death.
4470 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); }])
4471 dnl if HAVE_POSIX_OPENPT
4472 if test "x$ac_cv_func_posix_openpt" = xyes; then
4473 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4474 AC_DEFINE(PTY_NAME_SPRINTF, [])
4476 elif test "x$ac_cv_func_getpt" = xyes; then
4477 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4478 AC_DEFINE(PTY_NAME_SPRINTF, [])
4480 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4483 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4488 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4489 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4490 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4494 dnl It looks like this cannot be right, because it is not a loop.
4495 dnl However, process.c actually does this:
4501 dnl which presumably makes it OK, since irix == sgi (?).
4502 dnl FIXME it seems like this special treatment is unnecessary?
4503 dnl Why can't irix use a single-trip loop like eg cygwin?
4504 AC_DEFINE(PTY_ITERATION, [])
4505 dnl Not used, because PTY_ITERATION is defined.
4506 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4507 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); }])
4508 dnl No need to get the pty name at all.
4509 AC_DEFINE(PTY_NAME_SPRINTF, [])
4510 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4511 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4515 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4516 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4517 dnl from intercepting that death. If any child but grantpt's should die
4518 dnl within, it should be caught after sigrelse(2).
4519 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4520 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); }])
4524 dnl Comments are as per sol2*.
4525 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4526 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); }])
4533 dnl This change means that we don't loop through allocate_pty too
4534 dnl many times in the (rare) event of a failure.
4535 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4536 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4537 dnl Push various streams modules onto a PTY channel. Used in process.c.
4538 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (forkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (forkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (forkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4543 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4544 "typing" a signal character on the pty.])
4547 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4548 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4549 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4550 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4553 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4554 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4555 gnu-linux | gnu-kfreebsd )
4557 AC_MSG_CHECKING([for signals via characters])
4558 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4559 #include <linux/version.h>
4560 #if LINUX_VERSION_CODE < 0x20400
4561 # error "Linux version too old"
4563 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4565 AC_MSG_RESULT([$emacs_signals_via_chars])
4566 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4571 AH_TEMPLATE(TAB3, [Undocumented.])
4574 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4576 gnu | dragonfly | freebsd | netbsd | openbsd )
4577 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4578 AC_DEFINE(TAB3, OXTABS)
4581 gnu-linux | gnu-kfreebsd )
4582 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4586 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4587 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4588 [Mark a secondary stack, like the register stack on the ia64.]), [])
4592 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4593 run_time_remap; for HPUX.])
4598 dnl This won't be used automatically yet. We also need to know, at least,
4599 dnl that the stack is continuous.
4600 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4601 registers relevant for conservative garbage collection in the jmp_buf.])
4605 dnl Not all the architectures are tested, but there are Debian packages
4606 dnl for SCM and/or Guile on them, so the technique must work. See also
4607 dnl comments in alloc.c concerning setjmp and gcc.
4608 dnl Fixme: it's probably safe to just use the GCC conditional below.
4609 gnu-linux | gnu-kfreebsd )
4610 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4611 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4612 || defined __alpha__ || defined __mips__ || defined __s390__ \
4613 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4614 || defined __ia64__ || defined __sh__
4617 # error "setjmp not known to work on this arch"
4619 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4624 if test x$GCC = xyes; then
4625 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4626 AC_DEFINE(GC_SETJMP_WORKS, 1)
4629 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4630 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4631 AC_DEFINE(GC_SETJMP_WORKS, 1)
4636 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4637 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4640 [[#include <setjmp.h>
4642 # define _longjmp longjmp
4647 _longjmp (j, 1);]])],
4648 [emacs_cv_func__setjmp=yes],
4649 [emacs_cv_func__setjmp=no])])
4650 if test $emacs_cv_func__setjmp = yes; then
4651 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4654 # We need to preserve signal mask to handle C stack overflows.
4655 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4658 [[#include <setjmp.h>
4661 if (! sigsetjmp (j, 1))
4662 siglongjmp (j, 1);]])],
4663 [emacs_cv_func_sigsetjmp=yes],
4664 [emacs_cv_func_sigsetjmp=no])])
4665 if test $emacs_cv_func_sigsetjmp = yes; then
4666 AC_DEFINE([HAVE_SIGSETJMP], 1,
4667 [Define to 1 if sigsetjmp and siglongjmp work.])
4670 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4671 yes,yes,* | *,*,mingw32)
4672 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4673 [Define to 1 if C stack overflow can be handled in some cases.]);;
4678 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4679 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4680 dnl and this is all we need.
4681 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4688 dnl Used in xfaces.c.
4689 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4690 some systems, where it requires time.h.])
4695 dnl Define symbols to identify the version of Unix this is.
4696 dnl Define all the symbols that apply correctly.
4697 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4698 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4699 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4700 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4705 dnl This symbol should be defined on AIX Version 3 ???????
4706 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4708 # error "_AIX not defined"
4710 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4714 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4718 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4719 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4720 dnl distinguish OS X from pure Darwin.
4721 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4724 gnu-linux | gnu-kfreebsd )
4726 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4731 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4736 AC_DEFINE(USG5_4, [])
4737 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4741 AC_DEFINE(DOS_NT, [])
4742 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4743 if test "x$ac_enable_checking" != "x" ; then
4744 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4750 AC_DEFINE(USG5_4, [])
4751 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4756 AC_DEFINE(USG5_4, [])
4760 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4763 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4764 emacs_cv_usable_FIONREAD=no
4768 emacs_cv_usable_FIONREAD=yes
4773 [AC_LANG_PROGRAM([[#include <sys/types.h>
4774 #include <sys/ioctl.h>
4776 # include <sys/filio.h>
4779 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4780 [emacs_cv_usable_FIONREAD=yes],
4781 [emacs_cv_usable_FIONREAD=no])
4784 if test $emacs_cv_usable_FIONREAD = yes; then
4785 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4787 if test $emacs_broken_SIGIO = no; then
4788 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4790 [AC_LANG_PROGRAM([[#include <fcntl.h>
4793 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4794 [emacs_cv_usable_SIGIO=yes],
4795 [emacs_cv_usable_SIGIO=no])],
4796 [emacs_cv_usable_SIGIO=yes],
4797 [emacs_cv_usable_SIGIO=no])
4798 if test $emacs_cv_usable_SIGIO = yes; then
4799 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4806 dnl It works to open the pty's tty in the parent (Emacs), then
4807 dnl close and reopen it in the child.
4808 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4809 works to open a pty's tty in the parent process, then close and
4810 reopen it in the child.])
4814 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4815 use VSUSP instead of VSWTCH.])
4819 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4824 # Set up the CFLAGS for real compilation, so we can substitute it.
4825 CFLAGS="$REAL_CFLAGS"
4826 CPPFLAGS="$REAL_CPPFLAGS"
4829 ## Hack to detect a buggy GCC version.
4830 if test "$GCC" = yes && \
4831 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4833 *-fno-optimize-sibling-calls*) ;;
4835 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4839 version=$PACKAGE_VERSION
4841 copyright="Copyright (C) 2016 Free Software Foundation, Inc."
4842 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4843 [Short copyright string for this version of Emacs.])
4846 ### Specify what sort of things we'll be editing into Makefile and config.h.
4847 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4849 AC_SUBST(configuration)
4854 AC_SUBST(exec_prefix)
4857 AC_SUBST(sharedstatedir)
4858 AC_SUBST(libexecdir)
4862 AC_SUBST(standardlisppath)
4863 AC_SUBST(locallisppath)
4865 AC_SUBST(x_default_search_path)
4867 AC_SUBST(archlibdir)
4873 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4874 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4875 ## end of LIBX_BASE, but nothing ever set it.
4876 AC_SUBST(LD_SWITCH_X_SITE)
4877 AC_SUBST(C_SWITCH_X_SITE)
4878 AC_SUBST(GNUSTEP_CFLAGS)
4880 ## Used in lwlib/Makefile.in.
4881 AC_SUBST(X_TOOLKIT_TYPE)
4883 AC_SUBST(ns_appbindir)
4884 AC_SUBST(ns_appresdir)
4886 AC_SUBST(GNU_OBJC_CFLAGS)
4887 AC_SUBST(OTHER_FILES)
4889 if test -n "${term_header}"; then
4890 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4891 [Define to the header for the built-in window system.])
4894 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4895 [Define to the canonical Emacs configuration name.])
4896 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4897 [Define to the options passed to configure.])
4898 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4899 define this to include extra configuration information.])
4903 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4910 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4911 AC_DEFINE(HAVE_X_WINDOWS, 1,
4912 [Define to 1 if you want to use the X window system.])
4914 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4916 if test "$USE_CAIRO" = "yes"; then
4917 FONT_OBJ="ftfont.o ftcrfont.o"
4918 elif test "$HAVE_XFT" = "yes"; then
4919 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4920 elif test "$HAVE_FREETYPE" = "yes"; then
4921 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4931 if test "${USE_X_TOOLKIT}" != "none" ; then
4933 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4934 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4935 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4936 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4937 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4941 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4942 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4946 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4947 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4948 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4952 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4953 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4956 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4959 AC_SUBST(WIDGET_OBJ)
4962 case "$USE_X_TOOLKIT" in
4963 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4964 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4965 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4967 if test "$HAVE_XWIDGETS" = "yes"; then
4968 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
4970 AC_SUBST(TOOLKIT_LIBW)
4972 if test "${opsys}" != "mingw32"; then
4973 if test "$USE_X_TOOLKIT" = "none"; then
4974 LIBXT_OTHER="\$(LIBXSM)"
4976 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4979 AC_SUBST(LIBXT_OTHER)
4981 if test "${HAVE_X11}" = "yes" ; then
4982 AC_DEFINE(HAVE_X11, 1,
4983 [Define to 1 if you want to use version 11 of X windows.])
4984 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4988 AC_SUBST(LIBX_OTHER)
4990 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4992 elif test "$USE_X_TOOLKIT" = none; then
4993 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4995 LIBXMENU='$(lwlibdir)/liblw.a'
4999 AC_CACHE_CHECK([for struct alignment],
5000 [emacs_cv_struct_alignment],
5002 [AC_LANG_PROGRAM([[#include <stddef.h>
5003 struct __attribute__ ((aligned (8))) s { char c; };
5004 struct t { char c; struct s s; };
5005 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5007 [emacs_cv_struct_alignment=yes],
5008 [emacs_cv_struct_alignment=no])])
5009 if test "$emacs_cv_struct_alignment" = yes; then
5010 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5011 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5012 structure to an N-byte boundary.])
5015 if test "${GNU_MALLOC}" = "yes" ; then
5016 AC_DEFINE(GNU_MALLOC, 1,
5017 [Define to 1 if you want to use the GNU memory allocator.])
5021 if test "${REL_ALLOC}" = "yes" ; then
5022 AC_DEFINE(REL_ALLOC, 1,
5023 [Define REL_ALLOC if you want to use the relocating allocator for
5026 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5028 AC_SUBST(RALLOC_OBJ)
5030 if test "$opsys" = "cygwin"; then
5031 CYGWIN_OBJ="sheap.o cygw32.o"
5032 ## Cygwin differs because of its unexec().
5034 POST_ALLOC_OBJ=lastfile.o
5035 elif test "$opsys" = "mingw32"; then
5038 POST_ALLOC_OBJ=lastfile.o
5041 PRE_ALLOC_OBJ=lastfile.o
5044 AC_SUBST(CYGWIN_OBJ)
5045 AC_SUBST(PRE_ALLOC_OBJ)
5046 AC_SUBST(POST_ALLOC_OBJ)
5048 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5049 dnl verbatim defined above. The tricky name is apropos, as this hack
5050 dnl makes Fortify go sour!
5051 AH_VERBATIM([FORTIFY_SOUR],
5052 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5053 The workaround disables some useful run-time checking, so it
5054 should be conditional to the platforms with the performance bug.
5055 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5056 #if defined __APPLE__ && defined __GNUC__
5057 # ifndef _DONT_USE_CTYPE_INLINE_
5058 # define _DONT_USE_CTYPE_INLINE_
5060 # ifndef _FORTIFY_SOURCE
5061 # define _FORTIFY_SOURCE 0
5066 # If user asks to omit features, disable optional features that gnulib
5067 # might otherwise enable.
5068 if test "$with_features" = no && test "$enable_acl" != yes; then
5072 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5073 # it temporarily reverts them to their pre-pkg-config values,
5074 # because gnulib needs to work with both src (which uses the
5075 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5076 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5077 # and it therefore needs to run in an environment where LIBS does not
5078 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5079 # for some package unrelated to lib-src.
5082 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5083 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5084 gl_ASSERT_NO_GNULIB_POSIXCHECK
5085 gl_ASSERT_NO_GNULIB_TESTS
5090 if test "${opsys}" = "mingw32"; then
5091 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5092 # Remove unneeded switches from the value of CC that goes to Makefiles
5093 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5097 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5099 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5102 ## The -headerpad option tells ld (see man page) to leave room at the
5103 ## end of the header for adding load commands. Needed for dumping.
5104 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5105 ## architecture (where they are 78 bytes each). The actual number of
5106 ## load commands added is not consistent but normally ranges from
5107 ## about 14 to about 34. Setting it high gets us plenty of slop and
5108 ## only costs about 1.5K of wasted binary space.
5109 headerpad_extra=1000
5110 if test "$HAVE_NS" = "yes"; then
5111 libs_nsgui="-framework AppKit"
5112 if test "$NS_IMPL_COCOA" = "yes"; then
5113 libs_nsgui="$libs_nsgui -framework IOKit"
5118 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5120 ## This is here because src/Makefile.in did some extra fiddling around
5121 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5122 ## LD_SWITCH_SYSTEM_TEMACS instead,
5123 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5124 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5127 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5128 ## find X at run-time.
5129 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5130 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5131 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5132 ## had different values in configure (in ac_link) and src/Makefile.in.
5133 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5134 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5137 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5138 case "$canonical" in
5139 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5140 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5144 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5147 # -nopie fixes a temacs segfault on Gentoo, OpenBSD, and other systems
5148 # with "hardened" GCC configurations for some reason (Bug#18784).
5149 # We don't know why -nopie works, but not segfaulting is better than
5150 # segfaulting. Use ac_c_werror_flag=yes when trying -nopie, otherwise
5151 # clang keeps warning that it does not understand -nopie, and pre-4.6
5152 # GCC has a similar problem (Bug#20338).
5153 AC_CACHE_CHECK([whether $CC accepts -nopie],
5154 [emacs_cv_prog_cc_nopie],
5155 [emacs_save_c_werror_flag=$ac_c_werror_flag
5156 emacs_save_LDFLAGS=$LDFLAGS
5157 ac_c_werror_flag=yes
5158 LDFLAGS="$LDFLAGS -nopie"
5159 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
5160 [emacs_cv_prog_cc_nopie=yes],
5161 [emacs_cv_prog_cc_nopie=no])
5162 ac_c_werror_flag=$emacs_save_c_werror_flag
5163 LDFLAGS=$emacs_save_LDFLAGS])
5164 if test "$emacs_cv_prog_cc_nopie" = yes; then
5165 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie"
5168 if test x$ac_enable_profiling != x ; then
5170 *freebsd | gnu-linux) ;;
5171 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5175 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5177 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5179 ## Common for all window systems
5180 if test "$window_system" != "none"; then
5181 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5182 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5183 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5186 AC_SUBST(WINDOW_SYSTEM_OBJ)
5188 AH_TOP([/* GNU Emacs site configuration template file.
5190 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2016
5191 Free Software Foundation, Inc.
5193 This file is part of GNU Emacs.
5195 GNU Emacs is free software: you can redistribute it and/or modify
5196 it under the terms of the GNU General Public License as published by
5197 the Free Software Foundation, either version 3 of the License, or
5198 (at your option) any later version.
5200 GNU Emacs is distributed in the hope that it will be useful,
5201 but WITHOUT ANY WARRANTY; without even the implied warranty of
5202 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5203 GNU General Public License for more details.
5205 You should have received a copy of the GNU General Public License
5206 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5209 /* No code in Emacs #includes config.h twice, but some bits of code
5210 intended to work with other packages as well (like gmalloc.c)
5211 think they can include it as many times as they like. */
5212 #ifndef EMACS_CONFIG_H
5213 #define EMACS_CONFIG_H
5216 AH_BOTTOM([#include <conf_post.h>
5218 #endif /* EMACS_CONFIG_H */
5227 #### Report on what we decided to do.
5228 #### Report GTK as a toolkit, even if it doesn't use Xt.
5229 #### It makes printing result more understandable as using GTK sets
5230 #### toolkit_scroll_bars to yes by default.
5231 if test "${HAVE_GTK}" = "yes"; then
5232 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5235 if test $USE_ACL -ne 0; then
5236 ACL_SUMMARY="yes $LIB_ACL"
5241 emacs_standard_dirs='Standard dirs'
5243 Configured for '${canonical}'.
5245 Where should the build process find the source code? ${srcdir}
5246 What compiler should emacs be built with? ${CC} ${CFLAGS}
5247 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5248 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5249 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5250 What window system should Emacs use? ${window_system}
5251 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5252 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5253 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5256 emacs_config_features=
5257 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5258 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5259 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES; do
5262 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5263 CAIRO|TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5264 *) eval val=\${HAVE_$opt} ;;
5267 xno|xnone|x) continue ;;
5272 GTK*|LUCID|MOTIF) opt=$val ;;
5277 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5280 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5281 [Summary of some of the main features enabled by configure.])
5283 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5284 Does Emacs use -lXpm? ${HAVE_XPM}
5285 Does Emacs use -ljpeg? ${HAVE_JPEG}
5286 Does Emacs use -ltiff? ${HAVE_TIFF}
5287 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5288 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5289 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5290 Does Emacs use cairo? ${USE_CAIRO}
5291 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5292 Does Emacs support sound? ${HAVE_SOUND}
5293 Does Emacs use -lgpm? ${HAVE_GPM}
5294 Does Emacs use -ldbus? ${HAVE_DBUS}
5295 Does Emacs use -lgconf? ${HAVE_GCONF}
5296 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5297 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5298 Does Emacs use access control lists? ${ACL_SUMMARY}
5299 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5300 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5301 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5302 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5303 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5304 Does Emacs use -lotf? ${HAVE_LIBOTF}
5305 Does Emacs use -lxft? ${HAVE_XFT}
5306 Does Emacs directly use zlib? ${HAVE_ZLIB}
5307 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5308 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5309 Does Emacs support Xwidgets? ${HAVE_XWIDGETS}
5310 Does xwidgets support webkit(requires gtk3)? ${HAVE_WEBKIT}
5311 Does xwidgets support gobject introspection? ${HAVE_GIR}
5314 if test -n "${EMACSDATA}"; then
5315 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5317 if test -n "${EMACSDOC}"; then
5318 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5323 if test "$HAVE_NS" = "yes"; then
5325 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5326 The installed application will go to nextstep/Emacs.app and can be
5327 run or moved from there."])
5328 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5329 echo "The application will be fully self-contained."
5331 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5332 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5333 to run if these resources are not installed."])
5338 if test "${opsys}" = "cygwin"; then
5340 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5346 # Remove any trailing slashes in these variables.
5348 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5350 case $exec_prefix in
5351 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5354 if test "$HAVE_NS" = "yes"; then
5355 if test "$NS_IMPL_GNUSTEP" = yes; then
5356 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5357 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5358 ns_check_file=Resources/Info-gnustep.plist
5360 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5361 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5362 ns_check_file=Contents/Info.plist
5364 AC_SUBST(ns_check_file)
5367 dnl config.status treats $srcdir specially, so I think this is ok...
5368 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5370 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5371 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5372 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5373 dnl (else you get "no 'Makefile.am' found for any configure output").
5374 dnl This will work, but you get a config.status that is not quite right
5375 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5376 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5377 dnl it seems better to just live with the duplication.
5378 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5380 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5381 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5382 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5383 leim/Makefile nextstep/Makefile nt/Makefile])
5385 dnl test/ is not present in release tarfiles.
5386 opt_makefile=test/automated/Makefile
5388 if test -f "$srcdir/$opt_makefile.in"; then
5389 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5390 dnl Again, it's best not to use a variable. Though you can add
5391 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5392 AC_CONFIG_FILES([test/automated/Makefile])
5396 dnl The admin/ directory used to be excluded from tarfiles.
5397 if test -d $srcdir/admin; then
5398 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5399 AC_CONFIG_FILES([admin/charsets/Makefile])
5400 AC_CONFIG_FILES([admin/unidata/Makefile])
5401 AC_CONFIG_FILES([admin/grammars/Makefile])
5405 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5407 AC_SUBST(SUBDIR_MAKEFILES_IN)
5409 dnl You might wonder (I did) why epaths.h is generated by running make,
5410 dnl rather than just letting configure generate it from epaths.in.
5411 dnl One reason is that the various paths are not fully expanded (see above);
5412 dnl eg gamedir=${prefix}/var/games/emacs.
5413 dnl Secondly, the GNU Coding standards require that one should be able
5414 dnl to run 'make prefix=/some/where/else' and override the values set
5415 dnl by configure. This also explains the 'move-if-change' test and
5416 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5417 AC_CONFIG_COMMANDS([src/epaths.h], [
5418 if test "${opsys}" = "mingw32"; then
5419 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5421 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5422 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5423 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5425 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5426 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5428 AC_CONFIG_COMMANDS([src/.gdbinit], [
5429 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5430 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5434 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5435 dnl See comments for etc-refcards-emacsver.tex.
5436 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5437 dnl it is not quite the same. But we are generating in $srcdir.
5438 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5439 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5440 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5443 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5444 dnl then a directory etc/refcards is created in the build directory,
5445 dnl which is probably harmless, but confusing (in out-of-tree builds).
5446 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5447 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5448 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5449 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5450 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5455 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])