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, 25.1.50, 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, inotify, kqueue, gfile, w32, no)])],
360 [ case "${withval}" in
361 y | ye | yes ) val=yes ;;
363 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
364 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
365 g | gf | gfi | gfil | gfile ) val=gfile ;;
366 w | w3 | w32 ) val=w32 ;;
367 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
368 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
369 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
370 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
373 with_file_notification=$val
375 [with_file_notification=$with_features])
377 ## For the times when you want to build Emacs but don't have
378 ## a suitable makeinfo, and can live without the manuals.
379 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
380 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
382 ## This might be a 'configure' arg.
383 AC_SUBST([ACLOCAL_PATH])
385 ## Makefile.in needs the cache file name.
388 ## This is an option because I do not know if all info/man support
389 ## compressed files, nor how to test if they do so.
390 OPTION_DEFAULT_ON([compress-install],
391 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
392 make GZIP_PROG= install])
394 AC_ARG_WITH(gameuser,dnl
395 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
396 [user for shared game score files.
397 An argument prefixed by ':' specifies a group instead.])])
400 # We don't test if we can actually chown/chgrp here, because configure
401 # may run without root privileges. lib-src/Makefile.in will handle
402 # any errors due to missing user/group gracefully.
403 case ${with_gameuser} in
405 "" | yes) gamegroup=games ;;
406 :*) gamegroup=${with_gameuser#:} ;;
407 *) gameuser=${with_gameuser} ;;
410 AC_ARG_WITH([gnustep-conf],dnl
411 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
412 [name of GNUstep configuration file to use on systems where the command
413 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
414 /etc/GNUstep/GNUstep.conf])])
415 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
416 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
417 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
418 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
420 AC_ARG_ENABLE(ns-self-contained,
421 [AS_HELP_STRING([--disable-ns-self-contained],
422 [disable self contained build under NeXTstep])],
423 EN_NS_SELF_CONTAINED=$enableval,
424 EN_NS_SELF_CONTAINED=yes)
427 AC_ARG_ENABLE(locallisppath,
428 [AS_HELP_STRING([--enable-locallisppath=PATH],
429 [directories Emacs should search for lisp files specific
431 if test "${enableval}" = "no"; then
433 elif test "${enableval}" != "yes"; then
434 locallisppath=${enableval} locallisppathset=yes
437 AC_ARG_ENABLE(checking,
438 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
439 [enable expensive run-time checks. With LIST,
440 enable only specific categories of checks.
441 Categories are: all,yes,no.
442 Flags are: stringbytes, stringoverrun, stringfreelist,
443 xmallocoverrun, conslist, glyphs])],
444 [ac_checking_flags="${enableval}"],[])
445 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
446 for check in $ac_checking_flags
449 # these set all the flags to specific states
450 yes) ac_enable_checking=1 ;;
451 no) ac_enable_checking= ;
452 ac_gc_check_stringbytes= ;
453 ac_gc_check_string_overrun= ;
454 ac_gc_check_string_free_list= ;
455 ac_xmalloc_overrun= ;
456 ac_gc_check_cons_list= ;
458 all) ac_enable_checking=1 ;
459 ac_gc_check_stringbytes=1 ;
460 ac_gc_check_string_overrun=1 ;
461 ac_gc_check_string_free_list=1 ;
462 ac_xmalloc_overrun=1 ;
463 ac_gc_check_cons_list=1 ;
465 # these enable particular checks
466 stringbytes) ac_gc_check_stringbytes=1 ;;
467 stringoverrun) ac_gc_check_string_overrun=1 ;;
468 stringfreelist) ac_gc_check_string_free_list=1 ;;
469 xmallocoverrun) ac_xmalloc_overrun=1 ;;
470 conslist) ac_gc_check_cons_list=1 ;;
471 glyphs) ac_glyphs_debug=1 ;;
472 *) AC_MSG_ERROR(unknown check category $check) ;;
477 if test x$ac_enable_checking != x ; then
478 AC_DEFINE(ENABLE_CHECKING, 1,
479 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
481 if test x$ac_gc_check_stringbytes != x ; then
482 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
483 [Define this temporarily to hunt a bug. If defined, the size of
484 strings is redundantly recorded in sdata structures so that it can
485 be compared to the sizes recorded in Lisp strings.])
487 if test x$ac_gc_check_string_overrun != x ; then
488 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
489 [Define this to check for short string overrun.])
491 if test x$ac_gc_check_string_free_list != x ; then
492 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
493 [Define this to check the string free list.])
495 if test x$ac_xmalloc_overrun != x ; then
496 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
497 [Define this to check for malloc buffer overrun.])
499 if test x$ac_gc_check_cons_list != x ; then
500 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
501 [Define this to check for errors in cons list.])
503 if test x$ac_glyphs_debug != x ; then
504 AC_DEFINE(GLYPH_DEBUG, 1,
505 [Define this to enable glyphs debugging code.])
508 AC_ARG_ENABLE(check-lisp-object-type,
509 [AS_HELP_STRING([--enable-check-lisp-object-type],
510 [enable compile time checks for the Lisp_Object data type.
511 This is useful for development for catching certain types of bugs.])],
512 if test "${enableval}" != "no"; then
513 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
514 [Define this to enable compile time checks for the Lisp_Object data type.])
518 dnl The name of this option is unfortunate. It predates, and has no
519 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
520 dnl Actually, it stops it working.
521 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
522 AC_ARG_ENABLE(profiling,
523 [AS_HELP_STRING([--enable-profiling],
524 [build emacs with low-level, gprof profiling support.
525 Mainly useful for debugging Emacs itself. May not work on
526 all platforms. Stops profiler.el working.])],
527 [ac_enable_profiling="${enableval}"],[])
528 if test x$ac_enable_profiling != x ; then
529 PROFILING_CFLAGS="-DPROFILING=1 -pg"
533 AC_SUBST(PROFILING_CFLAGS)
535 AC_ARG_ENABLE(autodepend,
536 [AS_HELP_STRING([--enable-autodepend],
537 [automatically generate dependencies to .h-files.
538 Requires gcc, enabled if found.])],
539 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
541 AC_ARG_ENABLE(gtk-deprecation-warnings,
542 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
543 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
544 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
546 dnl This used to use changequote, but, apart from 'changequote is evil'
547 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
548 dnl the great gob of text. Thus it's not processed for possible expansion.
549 dnl Just make sure the brackets remain balanced.
551 dnl Since Emacs can't find matching pairs of quotes, boundaries are
552 dnl indicated by comments.
556 ### If you add support for a new configuration, add code to this
557 ### switch statement to recognize your configuration name and select
558 ### the appropriate opsys.
560 ### As far as handling version numbers on operating systems is
561 ### concerned, make sure things will fail in a fixable way. If
562 ### /etc/MACHINES doesn't say anything about version numbers, be
563 ### prepared to handle anything reasonably. If version numbers
564 ### matter, be sure /etc/MACHINES says something about it.
567 case "${canonical}" in
569 ## GNU/Linux and similar ports
584 ## FreeBSD kernel + glibc based userland
595 *-*-openbsd* | *-*-mirbsd* )
599 ## Apple Darwin / Mac OS X
601 case "${canonical}" in
602 *-apple-darwin[0-9].*) unported=yes ;;
603 i[3456]86-* | x86_64-* ) ;;
607 ## Use fink packages if available.
608 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
609 ## if test -d /sw/include && test -d /sw/lib; then
610 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
611 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
615 ## Chromium Native Client
625 ## HP 9000 series 700 and 800, running HP/UX
629 hppa*-hp-hpux1[1-9]* )
631 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
635 rs6000-ibm-aix4.[23]* )
638 powerpc-ibm-aix4.[23]* )
641 rs6000-ibm-aix[56]* )
644 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
648 ## Silicon Graphics machines
652 # Without defining _LANGUAGE_C, things get masked out in the headers
653 # so that, for instance, grepping for 'free' in stdlib.h fails and
654 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
655 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
660 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
661 | x86_64-*-solaris2* | x86_64-*-sunos5*)
662 case "${canonical}" in
664 amd64-*-*|x86_64-*-*) ;;
668 case "${canonical}" in
669 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
671 emacs_check_sunpro_c=yes
673 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
674 ## Note that Emacs 23.1's NEWS said the following would be dropped.
675 *-sunos5.6* | *-solaris2.6* )
679 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
680 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
682 emacs_check_sunpro_c=yes
685 ## Watch out for a compiler that we know will not work.
686 case "${canonical}" in
687 *-solaris* | *-sunos5* )
688 if [ "x$CC" = x/usr/ucb/cc ]; then
689 ## /usr/ucb/cc doesn't work;
690 ## we should find some other compiler that does work.
698 ## Intel 386 machines where we don't care about the manufacturer.
700 case "${canonical}" in
701 *-darwin* ) opsys=darwin ;;
704 # MinGW overrides and adds some system headers in nt/inc.
705 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
707 *-sysv4.2uw* ) opsys=unixware ;;
708 *-sysv5uw* ) opsys=unixware ;;
709 *-sysv5OpenUNIX* ) opsys=unixware ;;
710 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
716 case "${canonical}" in
719 # MinGW overrides and adds some system headers in nt/inc.
720 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
722 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
731 ### If the code above didn't choose an operating system, just choose
732 ### an operating system based on the configuration name. You really
733 ### only want to use this when you have no idea what the right
734 ### operating system is; if you know what operating systems a machine
735 ### runs, it's cleaner to make it explicit in the case statement
737 if test x"${opsys}" = x; then
738 case "${canonical}" in
739 *-gnu* ) opsys=gnu ;;
749 if test $unported = yes; then
750 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
751 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
752 Check 'etc/MACHINES' for recognized configuration names.])
755 #### Choose a compiler.
757 dnl Don't bother to test for C89.
758 AC_DEFUN([_AC_PROG_CC_C89], [$2])
760 dnl Sets GCC=yes if using gcc.
761 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
762 if test -n "$XCRUN"; then
763 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
764 test -n "$AR" && export AR
767 dnl Emacs needs C99 or later.
772 if test x$GCC = xyes; then
773 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
775 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
778 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
779 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
780 dnl that clash with MinGW.
781 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
783 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
784 AC_DEFUN([gl_CRYPTO_CHECK])
785 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
786 # as we don't use them.
787 AC_DEFUN([gl_FCNTL_O_FLAGS])
788 # Avoid gnulib's test for pthread_sigmask.
790 for func in $ac_func_list; do
791 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
794 # Use the system putenv even if it lacks GNU features, as we don't need them,
795 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
796 AC_CHECK_FUNCS_ONCE([putenv])
797 AC_DEFUN([gl_FUNC_PUTENV],
798 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
800 # Initialize gnulib right after choosing the compiler.
801 dnl Amongst other things, this sets AR and ARFLAGS.
804 if test "$ac_test_CFLAGS" != set; then
805 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
806 # if -g3 works and the user does not specify CFLAGS.
807 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
810 emacs_g3_CFLAGS='-g3';;
812 emacs_g3_CFLAGS='-g3 -O2';;
816 if test -n "$emacs_g3_CFLAGS"; then
817 emacs_save_CFLAGS=$CFLAGS
818 CFLAGS=$emacs_g3_CFLAGS
819 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
820 [emacs_cv_prog_cc_g3],
821 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
822 [emacs_cv_prog_cc_g3=yes],
823 [emacs_cv_prog_cc_g3=no])])
824 if test $emacs_cv_prog_cc_g3 != yes; then
825 CFLAGS=$emacs_save_CFLAGS
827 if test $opsys = mingw32; then
828 CFLAGS="$CFLAGS -gdwarf-2"
835 # No optimization flag was inferred for this non-GCC compiler.
836 # Try -O. This is needed for xlc on AIX; see Bug#14258.
837 emacs_save_CFLAGS=$CFLAGS
838 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
840 AC_CACHE_CHECK([whether $CC accepts -O],
841 [emacs_cv_prog_cc_o],
842 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
843 [emacs_cv_prog_cc_o=yes],
844 [emacs_cv_prog_cc_o=no])])
845 if test $emacs_cv_prog_cc_o != yes; then
846 CFLAGS=$emacs_save_CFLAGS
851 AC_ARG_ENABLE([gcc-warnings],
852 [AS_HELP_STRING([--enable-gcc-warnings],
853 [turn on lots of GCC warnings/errors. This is intended for
854 developers, and may generate false alarms when used
855 with older or non-GNU development tools.])],
858 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
860 gl_gcc_warnings=$enableval],
864 # clang is unduly picky about some things.
865 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
872 [emacs_cv_clang=yes],
873 [emacs_cv_clang=no])])
875 # When compiling with GCC, prefer -isystem to -I when including system
876 # include files, to avoid generating useless diagnostics for the files.
877 if test "$gl_gcc_warnings" != yes; then
879 if test "$emacs_cv_clang" = yes
881 # Turn off some warnings if supported.
882 gl_WARN_ADD([-Wno-switch])
883 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
884 gl_WARN_ADD([-Wno-pointer-sign])
885 gl_WARN_ADD([-Wno-string-plus-int])
886 gl_WARN_ADD([-Wno-unknown-attributes])
891 # This, $nw, is the list of warnings we disable.
894 case $with_x_toolkit in
895 lucid | athena | motif)
896 # Old toolkits mishandle 'const'.
897 nw="$nw -Wwrite-strings"
900 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
903 AC_SUBST([WERROR_CFLAGS])
905 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
906 nw="$nw -Woverlength-strings" # Not a problem these days
907 nw="$nw -Wformat-nonliteral" # we do this a lot
908 nw="$nw -Wvla" # Emacs uses <vla.h>.
909 nw="$nw -Wswitch-default" # Too many warnings for now
910 nw="$nw -Winline" # OK to ignore 'inline'
911 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
912 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
913 # signed overflow has undefined behavior
914 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
915 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
916 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
918 # Emacs doesn't care about shadowing; see
919 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
922 # Emacs's use of alloca inhibits protecting the stack.
923 nw="$nw -Wstack-protector"
925 # Emacs's use of partly-const functions such as Fgnutls_available_p
926 # make this option problematic.
927 nw="$nw -Wsuggest-attribute=const"
929 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
930 # option problematic.
931 nw="$nw -Wsuggest-attribute=pure"
933 # This part is merely for shortening the command line,
934 # since -Wall implies -Wswitch.
937 # This part is merely for shortening the command line,
938 # since -Wno-FOO needs to be added below regardless.
939 nw="$nw -Wmissing-field-initializers"
940 nw="$nw -Wtype-limits"
941 nw="$nw -Wunused-parameter"
943 if test $emacs_cv_clang = yes; then
944 nw="$nw -Wcast-align"
947 gl_MANYWARN_ALL_GCC([ws])
948 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
952 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
953 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
954 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
955 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
956 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
957 gl_WARN_ADD([-Wno-format-nonliteral])
959 # More things that clang is unduly picky about.
960 if test $emacs_cv_clang = yes; then
961 gl_WARN_ADD([-Wno-format-extra-args])
962 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
963 gl_WARN_ADD([-Wno-unused-command-line-argument])
964 gl_WARN_ADD([-Wno-unused-value])
967 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
968 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
969 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
970 [/* Enable compile-time and run-time bounds-checking, and some warnings,
971 without upsetting glibc 2.15+. */
972 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
973 && defined __OPTIMIZE__ && __OPTIMIZE__)
974 # define _FORTIFY_SOURCE 2
978 # We use a slightly smaller set of warning options for lib/.
979 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
981 nw="$nw -Wunused-macros"
983 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
984 AC_SUBST([GNULIB_WARN_CFLAGS])
994 AC_ARG_ENABLE(link-time-optimization,
995 [AS_HELP_STRING([--enable-link-time-optimization],
996 [build emacs with link-time optimization.
997 This requires GCC 4.5.0 or later, or clang.
998 (Note that clang support is experimental - see INSTALL.)
999 It also makes Emacs harder to debug, and when we tried it
1000 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1001 recommended for typical use.])],
1002 if test "${enableval}" != "no"; then
1004 if test $emacs_cv_clang = yes; then
1005 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1006 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1007 if test -x "$GOLD_PLUGIN"; then
1010 elif test x$GCC = xyes; then
1011 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1012 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1013 if test x$CPUS != x; then
1019 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1021 if test -z "$LTO"; then
1025 CFLAGS="$CFLAGS $LTO"
1026 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1027 [ac_lto_supported=yes], [ac_lto_supported=no])
1028 CFLAGS="$old_CFLAGS"
1030 AC_MSG_RESULT([$ac_lto_supported])
1031 if test "$ac_lto_supported" = "yes"; then
1032 CFLAGS="$CFLAGS $LTO"
1033 if test x$emacs_cv_clang = xyes; then
1034 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1035 # WARNING: 'ar --plugin ...' doesn't work without
1036 # command, so plugin name is appended to ARFLAGS.
1037 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1038 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1040 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1041 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1042 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1043 dnl dump core on Fedora 20, so play it safe for now.
1044 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1045 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1050 dnl Prefer silent make output. For verbose output, use
1051 dnl 'configure --disable-silent-rules' or 'make V=1' .
1052 AM_SILENT_RULES([yes])
1053 dnl Port to Automake 1.11.
1054 dnl This section can be removed once we assume Automake 1.14 or later.
1055 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1056 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1058 AM_SUBST_NOTMAKE([AM_V])
1059 AC_SUBST([AM_DEFAULT_V])
1060 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1061 AC_SUBST([AM_DEFAULT_VERBOSITY])
1063 dnl Some other nice autoconf tests.
1064 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1067 dnl if test "x$RANLIB" = x; then
1072 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1073 dnl can be made to directories. This is not relevant for our usage, and
1074 dnl excludes some cases that work fine for us. Eg MS Windows or files
1075 dnl hosted on AFS, both examples where simple links work, but links to
1076 dnl directories fail. We use a cut-down version instead.
1079 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1080 rm -f conf$$ conf$$.file
1082 LN_S_FILEONLY='cp -p'
1084 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1085 dnl random program in the current directory.
1086 if (echo >conf$$.file) 2>/dev/null; then
1087 if ln -s conf$$.file conf$$ 2>/dev/null; then
1088 if test "$opsys" = "mingw32"; then
1089 LN_S_FILEONLY='/bin/ln -s'
1091 LN_S_FILEONLY='ln -s'
1093 elif ln conf$$.file conf$$ 2>/dev/null; then
1094 if test "$opsys" = "mingw32"; then
1095 LN_S_FILEONLY=/bin/ln
1102 rm -f conf$$ conf$$.file
1104 if test "$LN_S_FILEONLY" = "ln -s"; then
1105 AC_MSG_RESULT([yes])
1107 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1110 AC_SUBST(LN_S_FILEONLY)
1113 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1114 dnl doesn't support links to directories, as in "ln file dir". But that
1115 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1116 dnl executables at "make install" time.
1117 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1118 dnl for more details.
1119 if test "$opsys" = "mingw32"; then
1123 dnl On some Debian versions, "install-info" prints irritating messages
1124 dnl "This is not dpkg install-info anymore, but GNU install-info"
1125 dnl if called via an absolute file name.
1126 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1127 dnl Sadly some people may have an old ginstall-info installed on
1128 dnl non-Debian systems, so we can't use this.
1129 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1130 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1132 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1133 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1134 dnl Don't use GZIP, which is used by gzip for additional parameters.
1135 AC_PATH_PROG(GZIP_PROG, gzip)
1137 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1138 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1140 if test $opsys = gnu-linux; then
1141 AC_PATH_PROG(PAXCTL, paxctl,,
1142 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1143 if test "X$PAXCTL" != X; then
1144 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1145 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1146 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1147 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1150 if test "${SETFATTR+set}" != set; then
1151 AC_CACHE_CHECK([for setfattr],
1152 [emacs_cv_prog_setfattr],
1154 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1155 emacs_cv_prog_setfattr=yes
1157 emacs_cv_prog_setfattr=no
1159 if test "$emacs_cv_prog_setfattr" = yes; then
1165 AC_SUBST([SETFATTR])
1169 ## Need makeinfo >= 4.7 (?) to build the manuals.
1170 if test "$MAKEINFO" != "no"; then
1171 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1174 case `($MAKEINFO --version) 2>/dev/null` in
1175 *' (GNU texinfo) '4.[[7-9]]* | \
1176 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1177 *' (GNU texinfo) '[[5-9]]* | \
1178 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1183 ## Makeinfo is unusual. For a released Emacs, the manuals are
1184 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1185 ## therefore in the category of "special tools" not normally required, which
1186 ## configure does not have to check for (eg autoconf itself).
1187 ## In a repository checkout on the other hand, the manuals are not included.
1188 ## So makeinfo is a requirement to build from the repository, and configure
1189 ## should test for it as it does for any other build requirement.
1190 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1191 ## with pre-built manuals, from a repository checkout.
1194 if test "$MAKEINFO" = "no"; then
1196 if test "x${with_makeinfo}" = "xno"; then
1198 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1199 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1200 source tree does not seem to have pre-built manuals in the 'info' directory.
1201 Either install a suitable version of makeinfo, or re-run configure
1202 with the '--without-makeinfo' option to build without the manuals.] )
1205 AC_SUBST(HAVE_MAKEINFO)
1207 if test $opsys = mingw32; then
1208 DOCMISC_W32=efaq-w32
1212 AC_SUBST(DOCMISC_W32)
1214 dnl Add our options to ac_link now, after it is set up.
1216 if test x$GCC = xyes; then
1217 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1218 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1220 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1221 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1224 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1225 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1226 dnl (Don't use '-z nocombreloc' as -z takes no arg on Irix.)
1227 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1228 dnl if not built to support GNU ld.
1230 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1231 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1232 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1233 dnl Eg "make LDFLAGS=... all" could run into problems,
1234 dnl http://bugs.debian.org/684788
1235 dnl * unnecessary, since temacs is the only thing that actually needs it.
1236 dnl Indeed this is where it was originally, prior to:
1237 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1238 late_LDFLAGS="$LDFLAGS"
1239 if test x$GCC = xyes; then
1240 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1242 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1245 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1247 AC_MSG_CHECKING([for -znocombreloc])
1248 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1249 [AC_MSG_RESULT(yes)],
1250 LDFLAGS_NOCOMBRELOC=
1251 [AC_MSG_RESULT(no)])
1253 LDFLAGS="$late_LDFLAGS"
1255 AC_CACHE_CHECK([whether addresses are sanitized],
1256 [emacs_cv_sanitize_address],
1259 [[#ifndef __has_feature
1260 #define __has_feature(f) 0
1262 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1264 error "Addresses are not sanitized.";
1267 [emacs_cv_sanitize_address=yes],
1268 [emacs_cv_sanitize_address=no])])
1270 dnl The function dump-emacs will not be defined and temacs will do
1271 dnl (load "loadup") automatically unless told otherwise.
1272 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1274 nacl) CANNOT_DUMP=yes ;;
1277 if test "$CANNOT_DUMP" = "yes"; then
1278 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1279 elif test "$emacs_cv_sanitize_address" = yes; then
1280 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1283 AC_SUBST(CANNOT_DUMP)
1286 UNEXEC_OBJ=unexelf.o
1288 # MSDOS uses unexcoff.o
1290 UNEXEC_OBJ=unexaix.o
1296 UNEXEC_OBJ=unexmacosx.o
1299 UNEXEC_OBJ=unexhp9k800.o
1302 UNEXEC_OBJ=unexw32.o
1305 # Use the Solaris dldump() function, called from unexsol.c, to dump
1306 # emacs, instead of the generic ELF dump code found in unexelf.c.
1307 # The resulting binary has a complete symbol table, and is better
1308 # for debugging and other observability tools (debuggers, pstack, etc).
1310 # If you encounter a problem using dldump(), please consider sending
1311 # a message to the OpenSolaris tools-linking mailing list:
1312 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1314 # It is likely that dldump() works with older Solaris too, but this has
1315 # not been tested, so for now this change is for Solaris 10 or newer.
1316 UNEXEC_OBJ=unexsol.o
1323 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1324 ## The system compiler, GCC, has apparently been modified to not
1325 ## look there, contrary to what a stock GCC would do.
1326 ### It's not our place to do this. See bug#10313#17.
1327 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1332 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1333 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1337 ### It's not our place to do this. See bug#10313#17.
1338 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1343 ## Han Boetes <han@boetes.org> says this is necessary,
1344 ## otherwise Emacs dumps core on elf systems.
1345 LD_SWITCH_SYSTEM="-Z"
1348 AC_SUBST(LD_SWITCH_SYSTEM)
1350 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1352 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1353 ## which has not been defined yet. When this was handled with cpp,
1354 ## it was expanded to null when configure sourced the s/*.h file.
1355 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1356 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1357 ## (or somesuch), but because it is supposed to go at the _front_
1358 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1359 ## Compare with the gnu-linux case below, which added to the end
1360 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1361 ## LD_SWITCH_SYSTEM_TEMACS.
1364 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1371 AC_CHECK_DECL([__ELF__])
1372 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1373 ## With ELF, make sure that all common symbols get allocated to in the
1374 ## data section. Otherwise, the dump of temacs may miss variables in
1375 ## the shared library that have been initialized. For example, with
1376 ## GNU libc, __malloc_initialized would normally be resolved to the
1377 ## shared library's .bss section, which is fatal.
1378 if test "x$GCC" = "xyes"; then
1379 C_SWITCH_MACHINE="-fno-common"
1381 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1384 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1385 dnl albeit under the mistaken assumption that said file
1386 dnl was no longer used.
1387 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1391 AC_SUBST(C_SWITCH_MACHINE)
1393 AC_SUBST(UNEXEC_OBJ)
1396 ## Some programs in src produce warnings saying certain subprograms
1397 ## are too complex and need a MAXMEM value greater than 2000 for
1398 ## additional optimization. --nils@exp-math.uni-essen.de
1399 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1400 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1401 if test "$opsys" = "mingw32"; then
1402 case "$canonical" in
1403 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1404 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1407 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1408 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1409 AC_SUBST(C_SWITCH_SYSTEM)
1414 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1415 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1417 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1419 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1421 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1423 ## Motif needs -lgen.
1424 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1427 AC_SUBST(LIBS_SYSTEM)
1429 ### Make sure subsequent tests use flags consistent with the build flags.
1431 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1432 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1434 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1437 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1438 AC_DEFUN([AC_TYPE_SIZE_T])
1439 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1440 AC_DEFUN([AC_TYPE_UID_T])
1442 # sqrt and other floating-point functions such as fmod and frexp
1443 # are found in -lm on many systems.
1445 AC_SEARCH_LIBS([sqrt], [m])
1446 if test "X$LIBS" = "X$OLD_LIBS"; then
1449 LIB_MATH=$ac_cv_search_sqrt
1453 dnl Current possibilities handled by sed (aix4-2 -> aix,
1454 dnl gnu-linux -> gnu/linux, etc.):
1455 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1456 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1457 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1464 ## Adding -lm confuses the dynamic linker, so omit it.
1467 freebsd | dragonfly )
1468 SYSTEM_TYPE=berkeley-unix
1470 gnu-linux | gnu-kfreebsd )
1472 hpux10-20 | hpux11 )
1476 SYSTEM_TYPE=windows-nt
1478 dnl NB this may be adjusted below.
1480 SYSTEM_TYPE=berkeley-unix
1484 SYSTEM_TYPE=usg-unix-v
1490 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1491 [The type of system you are compiling for; sets 'system-type'.])
1494 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1495 pre_PKG_CONFIG_LIBS=$LIBS
1497 PKG_PROG_PKG_CONFIG(0.9.0)
1499 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1500 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1501 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1502 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1503 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1504 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1506 AC_DEFUN([EMACS_CHECK_MODULES],
1507 [PKG_CHECK_MODULES([$1], [$2],
1508 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1509 m4_default([$3], [HAVE_$1=yes])],
1510 [m4_default([$4], [HAVE_$1=no])])])
1513 if test "${with_sound}" != "no"; then
1514 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1515 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1516 have_sound_header=yes, [], [
1518 #define WIN32_LEAN_AND_MEAN
1519 #include <windows.h>
1522 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1523 AC_MSG_ERROR([OSS sound support requested but not found.])
1525 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1526 # Emulation library used on NetBSD.
1527 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1528 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1529 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1530 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1531 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1535 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1537 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1538 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1539 if test $HAVE_ALSA = yes; then
1540 SAVE_CFLAGS="$CFLAGS"
1542 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1543 LIBS="$ALSA_LIBS $LIBS"
1544 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1545 emacs_alsa_normal=yes,
1546 emacs_alsa_normal=no)
1547 if test "$emacs_alsa_normal" != yes; then
1548 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1549 [[snd_lib_error_set_handler (0);]])],
1550 emacs_alsa_subdir=yes,
1551 emacs_alsa_subdir=no)
1552 if test "$emacs_alsa_subdir" != yes; then
1553 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1555 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1558 CFLAGS="$SAVE_CFLAGS"
1560 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1561 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1562 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1563 elif test "${with_sound}" = "alsa"; then
1564 AC_MSG_ERROR([ALSA sound support requested but not found.])
1566 fi dnl with_sound = alsa|yes
1568 dnl Define HAVE_SOUND if we have sound support. We know it works and
1569 dnl compiles only on the specified platforms. For others, it
1570 dnl probably doesn't make sense to try.
1571 dnl FIXME So surely we should bypass this whole section if not using
1572 dnl one of these platforms?
1573 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1575 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1576 dnl Adjust the --with-sound help text if you change this.
1577 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1578 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1584 AC_SUBST(CFLAGS_SOUND)
1587 dnl checks for header files
1588 AC_CHECK_HEADERS_ONCE(
1593 sys/utsname.h pwd.h utmp.h util.h)
1595 AC_MSG_CHECKING(if personality LINUX32 can be set)
1596 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1597 emacs_cv_personality_linux32=yes,
1598 emacs_cv_personality_linux32=no)
1599 AC_MSG_RESULT($emacs_cv_personality_linux32)
1601 if test $emacs_cv_personality_linux32 = yes; then
1602 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1603 [Define to 1 if personality LINUX32 can be set.])
1606 # Note that Solaris has sys/sysinfo.h which defines struct
1607 # sysinfo as well. To make sure that we're using GNU/Linux
1608 # sysinfo, we explicitly set one of its fields.
1609 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1610 AC_MSG_CHECKING([if Linux sysinfo may be used])
1611 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1612 [[struct sysinfo si;
1615 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1616 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1617 if test $emacs_cv_linux_sysinfo = yes; then
1618 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1619 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1620 [[struct sysinfo si; return si.mem_unit]])],
1621 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1622 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1626 dnl On Solaris 8 there's a compilation warning for term.h because
1627 dnl it doesn't define 'bool'.
1628 AC_CHECK_HEADERS(term.h, , , -)
1630 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1632 if test $ac_cv_have_decl_sys_siglist != yes; then
1633 # For Tru64, at least:
1634 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1639 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1640 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1641 #if HAVE_SYS_SOCKET_H
1642 #include <sys/socket.h>
1644 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1645 #if HAVE_SYS_SOCKET_H
1646 #include <sys/socket.h>
1648 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1649 #if HAVE_SYS_SOCKET_H
1650 #include <sys/socket.h>
1653 dnl checks for structure members
1654 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1655 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1656 struct ifreq.ifr_addr,
1657 struct ifreq.ifr_addr.sa_len], , ,
1658 [AC_INCLUDES_DEFAULT
1659 #if HAVE_SYS_SOCKET_H
1660 #include <sys/socket.h>
1666 dnl Check for endianness.
1667 dnl AC_C_BIGENDIAN is done by gnulib.
1669 dnl check for Make feature
1672 dnl check if we have GCC and autodepend is on.
1673 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1674 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1675 SAVE_CFLAGS="$CFLAGS"
1676 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1677 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1678 CFLAGS="$SAVE_CFLAGS"
1679 test -f deps.d || ac_enable_autodepend=no
1681 AC_MSG_RESULT([$ac_enable_autodepend])
1682 if test $ac_enable_autodepend = yes; then
1686 AC_SUBST(AUTO_DEPEND)
1688 dnl checks for operating system services
1689 AC_SYS_LONG_FILE_NAMES
1691 #### Choose a window system.
1693 ## We leave window_system equal to none if
1694 ## we end up building without one. Any new window system should
1695 ## set window_system to an appropriate value and add objects to
1696 ## window-system-specific substs.
1700 if test "$no_x" != yes; then
1704 LD_SWITCH_X_SITE_RPATH=
1705 if test "${x_libraries}" != NONE; then
1706 if test -n "${x_libraries}"; then
1707 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1708 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1709 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1712 x_default_search_path=""
1713 x_search_path=${x_libraries}
1714 if test -z "${x_search_path}"; then
1715 x_search_path=/usr/lib
1717 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1718 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1720 ${x_library}/X11/%L/%T/%N%C%S:\
1721 ${x_library}/X11/%l/%T/%N%C%S:\
1722 ${x_library}/X11/%T/%N%C%S:\
1723 ${x_library}/X11/%L/%T/%N%S:\
1724 ${x_library}/X11/%l/%T/%N%S:\
1725 ${x_library}/X11/%T/%N%S"
1726 if test x"${x_default_search_path}" = x; then
1727 x_default_search_path=${x_search_path}
1729 x_default_search_path="${x_search_path}:${x_default_search_path}"
1733 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1735 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1736 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1739 if test x"${x_includes}" = x; then
1740 bitmapdir=/usr/include/X11/bitmaps
1742 # accumulate include directories that have X11 bitmap subdirectories
1744 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1745 if test -d "${bmd}/X11/bitmaps"; then
1746 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1748 if test -d "${bmd}/bitmaps"; then
1749 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1752 bitmapdir=${bmd_acc#:}
1755 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1757 NS_GNUSTEP_CONFIG=no
1760 tmp_CPPFLAGS="$CPPFLAGS"
1761 tmp_CFLAGS="$CFLAGS"
1762 CPPFLAGS="$CPPFLAGS -x objective-c"
1763 CFLAGS="$CFLAGS -x objective-c"
1766 if test "${with_ns}" != no; then
1767 if test "${opsys}" = darwin; then
1769 ns_appdir=`pwd`/nextstep/Emacs.app
1770 ns_appbindir=${ns_appdir}/Contents/MacOS
1771 ns_appresdir=${ns_appdir}/Contents/Resources
1772 ns_appsrc=Cocoa/Emacs.base
1773 ns_fontfile=macfont.o
1774 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1776 NS_GNUSTEP_CONFIG=yes
1777 GNU_OBJC_CFLAGS=$flags
1778 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1779 elif test -f $GNUSTEP_CONFIG_FILE; then
1781 dnl FIXME sourcing this several times in subshells seems inefficient.
1782 GNUSTEP_SYSTEM_HEADERS=$(
1783 . $GNUSTEP_CONFIG_FILE
1784 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1786 GNUSTEP_SYSTEM_LIBRARIES=$(
1787 . $GNUSTEP_CONFIG_FILE
1788 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1790 dnl I seemed to need these as well with GNUstep-startup 0.25.
1791 GNUSTEP_LOCAL_HEADERS=$(
1792 . $GNUSTEP_CONFIG_FILE
1793 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1795 GNUSTEP_LOCAL_LIBRARIES=$(
1796 . $GNUSTEP_CONFIG_FILE
1797 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1799 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1800 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1801 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1802 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1803 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1804 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1805 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1806 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1807 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1808 dnl If they had chosen to either define it or not, we could have
1809 dnl just used AC_CHECK_DECL here.
1810 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1811 emacs_cv_objc_exceptions,
1812 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1813 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1817 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1818 if test $emacs_cv_objc_exceptions = yes; then
1819 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1820 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1821 [Define if GNUstep uses ObjC exceptions.])
1822 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1825 if test $NS_IMPL_GNUSTEP = yes; then
1826 ns_appdir=`pwd`/nextstep/Emacs.app
1827 ns_appbindir=${ns_appdir}
1828 ns_appresdir=${ns_appdir}/Resources
1829 ns_appsrc=GNUstep/Emacs.base
1830 ns_fontfile=nsfont.o
1833 dnl This is only used while we test the NS headers, it gets reset below.
1834 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1835 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1837 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1838 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1839 are required for a Nextstep build are missing or cannot be compiled.
1840 Either fix this, or re-configure with the option '--without-ns'.])])
1843 if test "${NS_IMPL_COCOA}" = "yes"; then
1844 AC_MSG_CHECKING([for OSX 10.6 or newer])
1845 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1847 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1848 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1851 error "OSX 10.6 or newer required";
1855 ns_osx_have_106=yes,
1857 AC_MSG_RESULT([$ns_osx_have_106])
1859 if test $ns_osx_have_106 = no; then
1860 AC_MSG_ERROR([OSX 10.6 or newer is required]);
1865 AC_SUBST(LIBS_GNUSTEP)
1867 INSTALL_ARCH_INDEP_EXTRA=install-etc
1868 ns_self_contained=no
1871 if test "${HAVE_NS}" = yes; then
1872 if test "$with_toolkit_scroll_bars" = "no"; then
1873 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1876 window_system=nextstep
1877 # set up packaging dirs
1878 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1879 ns_self_contained=yes
1880 prefix=${ns_appresdir}
1881 exec_prefix=${ns_appbindir}
1882 dnl This one isn't really used, only archlibdir is.
1883 libexecdir="\${ns_appbindir}/libexec"
1884 archlibdir="\${ns_appbindir}/libexec"
1885 etcdocdir="\${ns_appresdir}/etc"
1886 etcdir="\${ns_appresdir}/etc"
1887 dnl FIXME maybe set datarootdir instead.
1888 dnl That would also get applications, icons, man.
1889 infodir="\${ns_appresdir}/info"
1890 mandir="\${ns_appresdir}/man"
1891 lispdir="\${ns_appresdir}/lisp"
1892 test "$locallisppathset" = no && locallisppath=""
1893 INSTALL_ARCH_INDEP_EXTRA=
1896 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1898 CFLAGS="$tmp_CFLAGS"
1899 CPPFLAGS="$tmp_CPPFLAGS"
1900 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1901 AC_SUBST(ns_self_contained)
1903 AC_SUBST(NS_OBJC_OBJ)
1914 if test "${with_w32}" != no; then
1917 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1918 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1919 cannot be found.])])
1922 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1925 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1930 if test "${opsys}" = "mingw32"; then
1931 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1932 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1933 #include <windows.h>
1934 #include <usp10.h>]],
1935 [[PIMAGE_NT_HEADERS pHeader;
1936 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1937 [emacs_cv_w32api=yes
1940 AC_MSG_RESULT($emacs_cv_w32api)
1941 if test "${emacs_cv_w32api}" = "no"; then
1942 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1953 if test "${HAVE_W32}" = "yes"; then
1954 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1955 if test "$with_toolkit_scroll_bars" = "no"; then
1956 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
1958 AC_CHECK_TOOL(WINDRES, [windres],
1959 [AC_MSG_ERROR([No resource compiler found.])])
1960 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1961 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1962 EMACSRES="emacs.res"
1963 case "$canonical" in
1964 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1965 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1967 dnl Construct something of the form "24,4,0,0" with 4 components.
1968 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
1970 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
1971 AC_SUBST(comma_version)
1972 AC_SUBST(comma_space_version)
1973 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
1974 if test "${opsys}" = "cygwin"; then
1975 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1976 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1977 # Tell the linker that emacs.res is an object (which we compile from
1978 # the rc file), not a linker script.
1979 W32_RES_LINK="-Wl,emacs.res"
1981 UPDATE_MANIFEST=update-game-score.exe.manifest
1982 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1983 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1984 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1985 W32_RES_LINK="\$(EMACSRES)"
1986 CLIENTRES="emacsclient.res"
1987 CLIENTW="emacsclientw\$(EXEEXT)"
1988 FIRSTFILE_OBJ=firstfile.o
1991 LIBS_ECLIENT="-lcomctl32"
1992 LIB_WSOCK32="-lwsock32"
1993 NTLIB="ntlib.$ac_objext"
1994 XARGS_LIMIT="-s 10000"
2000 AC_SUBST(EMACS_MANIFEST)
2001 AC_SUBST(UPDATE_MANIFEST)
2004 AC_SUBST(W32_RES_LINK)
2005 AC_SUBST(FIRSTFILE_OBJ)
2008 AC_SUBST(LIBS_ECLIENT)
2009 AC_SUBST(LIB_WSOCK32)
2011 AC_SUBST(XARGS_LIMIT)
2013 if test "${HAVE_W32}" = "yes"; then
2018 ## $window_system is now set to the window system we will
2021 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
2022 # Too many warnings for now.
2024 nw="$nw -Wsuggest-attribute=noreturn"
2025 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
2027 gl_WARN_ADD([-Wno-unused-variable])
2028 gl_WARN_ADD([-Wno-unused-but-set-variable])
2029 gl_WARN_ADD([-Wno-unused-but-set-parameter])
2037 case "${window_system}" in
2042 case "${with_x_toolkit}" in
2043 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2044 motif ) USE_X_TOOLKIT=MOTIF ;;
2046 term_header=gtkutil.h
2047 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2048 dnl USE_X_TOOLKIT is set.
2049 USE_X_TOOLKIT=none ;;
2050 gtk2 ) with_gtk2=yes
2051 term_header=gtkutil.h
2052 USE_X_TOOLKIT=none ;;
2053 gtk3 ) with_gtk3=yes
2054 term_header=gtkutil.h
2055 USE_X_TOOLKIT=none ;;
2056 no ) USE_X_TOOLKIT=none ;;
2057 dnl If user did not say whether to use a toolkit, make this decision later:
2058 dnl use the toolkit if we have gtk, or X11R5 or newer.
2059 * ) USE_X_TOOLKIT=maybe ;;
2063 term_header=nsterm.h
2066 term_header=w32term.h
2070 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2071 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2072 if test "$HAVE_XSERVER" = true ||
2073 test -n "$DISPLAY" ||
2075 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2076 test "$emacs_libX11" != '/usr/lib/libX11.*'
2079 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2080 were found. You should install the relevant development files for X
2081 and for the toolkit you want, such as Gtk+ or Motif. Also make
2082 sure you have development files for image handling, i.e.
2083 tiff, gif, jpeg, png and xpm.
2084 If you are sure you want Emacs compiled without X window support, pass
2090 # Does the opsystem file prohibit the use of the GNU malloc?
2091 # Assume not, until told otherwise.
2095 [whether malloc is Doug Lea style],
2096 [emacs_cv_var_doug_lea_malloc],
2097 [emacs_cv_var_doug_lea_malloc=no
2098 dnl Hooks do not work with address sanitization.
2099 if test "$emacs_cv_sanitize_address" != yes; then
2102 [[#include <malloc.h>
2103 static void hook (void) {}]],
2104 [[malloc_set_state (malloc_get_state ());
2105 __after_morecore_hook = hook;
2106 __malloc_initialize_hook = hook;]])],
2107 [emacs_cv_var_doug_lea_malloc=yes])
2109 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2111 system_malloc=$emacs_cv_sanitize_address
2116 ## darwin ld insists on the use of malloc routines in the System framework.
2117 darwin | mingw32 | nacl | sol2-10) system_malloc=yes ;;
2118 cygwin) hybrid_malloc=yes;;
2122 if test "${system_malloc}" = "yes"; then
2123 AC_DEFINE([SYSTEM_MALLOC], 1,
2124 [Define to 1 to use the system memory allocator, even if it is not
2128 (The GNU allocators don't work with this system configuration.)"
2130 elif test "$hybrid_malloc" = yes; then
2131 AC_DEFINE(HYBRID_MALLOC, 1,
2132 [Define to use gmalloc before dumping and the system malloc after.])
2134 GNU_MALLOC_reason="only before dumping"
2135 GMALLOC_OBJ=gmalloc.o
2138 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2139 VMLIMIT_OBJ=vm-limit.o
2141 AC_CHECK_HEADERS([sys/vlimit.h])
2142 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2145 [[extern char data_start[]; char ch;]],
2146 [[return data_start < &ch;]])],
2147 [emacs_cv_data_start=yes],
2148 [emacs_cv_data_start=no])])
2149 if test $emacs_cv_data_start = yes; then
2150 AC_DEFINE([HAVE_DATA_START], 1,
2151 [Define to 1 if data_start is the address of the start
2152 of the main data segment.])
2155 AC_SUBST(GMALLOC_OBJ)
2156 AC_SUBST(VMLIMIT_OBJ)
2158 if test "$doug_lea_malloc" = "yes" ; then
2159 if test "$GNU_MALLOC" = yes ; then
2161 (Using Doug Lea's new malloc from the GNU C Library.)"
2163 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2164 [Define to 1 if the system memory allocator is Doug Lea style,
2165 with malloc hooks and malloc_set_state.])
2167 ## Use mmap directly for allocating larger buffers.
2168 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2169 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2170 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2172 mingw32|gnu*) REL_ALLOC=no ;;
2176 if test x"${REL_ALLOC}" = x; then
2177 REL_ALLOC=${GNU_MALLOC}
2180 use_mmap_for_buffers=no
2182 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2186 if test $use_mmap_for_buffers = yes; then
2187 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2191 LIBS="$LIBS_SYSTEM $LIBS"
2193 dnl FIXME replace main with a function we actually want from this library.
2194 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2196 dnl Check for the POSIX thread library.
2198 AC_CHECK_HEADERS_ONCE(pthread.h)
2199 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2200 AC_CACHE_CHECK([for pthread library],
2201 [emacs_cv_pthread_lib],
2202 [emacs_cv_pthread_lib=no
2204 for emacs_pthread_lib in 'none needed' -lpthread; do
2205 case $emacs_pthread_lib in
2206 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2210 [[#include <pthread.h>
2212 sigset_t old_mask, new_mask;
2213 void noop (void) {}]],
2214 [[pthread_t th = pthread_self ();
2216 status += pthread_create (&th, 0, 0, 0);
2217 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2218 status += pthread_kill (th, 0);
2219 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2220 || defined DOUG_LEA_MALLOC)
2221 /* Test for pthread_atfork only if gmalloc uses it,
2222 as older-style hosts like MirBSD 10 lack it. */
2223 status += pthread_atfork (noop, noop, noop);
2226 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2228 if test "$emacs_cv_pthread_lib" != no; then
2232 if test "$emacs_cv_pthread_lib" != no; then
2233 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2234 case $emacs_cv_pthread_lib in
2235 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2237 ac_cv_func_pthread_sigmask=yes
2238 # Some systems optimize for single-threaded programs by default, and
2239 # need special flags to disable these optimizations. For example, the
2240 # definition of 'errno' in <errno.h>.
2243 AC_DEFINE([_REENTRANT], 1,
2244 [Define to 1 if your system requires this in multithreaded code.]);;
2246 AC_DEFINE([_THREAD_SAFE], 1,
2247 [Define to 1 if your system requires this in multithreaded code.]);;
2251 AC_SUBST([LIB_PTHREAD])
2253 dnl Check for need for bigtoc support on IBM AIX
2257 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2259 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2260 *) gdb_cv_bigtoc=-bbigtoc ;;
2263 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2264 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2269 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2270 # is for the tests that follow. We set them back later on.
2272 REAL_CFLAGS="$CFLAGS"
2273 REAL_CPPFLAGS="$CPPFLAGS"
2276 if test "${HAVE_X11}" = "yes"; then
2277 DEFS="$C_SWITCH_X_SITE $DEFS"
2278 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2280 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2281 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2283 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2284 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2285 # but it's more convenient here to set LD_RUN_PATH since this
2286 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2287 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2288 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2292 if test "${opsys}" = "gnu-linux"; then
2293 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2294 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2295 [[XOpenDisplay ("foo");]])],
2296 [xgnu_linux_first_failure=no],
2297 [xgnu_linux_first_failure=yes])
2298 if test "${xgnu_linux_first_failure}" = "yes"; then
2299 OLD_CPPFLAGS="$CPPFLAGS"
2301 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2302 LIBS="$LIBS -b i486-linuxaout"
2303 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2304 [[XOpenDisplay ("foo");]])],
2305 [xgnu_linux_second_failure=no],
2306 [xgnu_linux_second_failure=yes])
2307 if test "${xgnu_linux_second_failure}" = "yes"; then
2308 # If we get the same failure with -b, there is no use adding -b.
2309 # So leave it out. This plays safe.
2312 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2313 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2316 CPPFLAGS=$OLD_CPPFLAGS
2323 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2324 # header files included from there.
2325 AC_MSG_CHECKING(for Xkb)
2326 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2327 #include <X11/XKBlib.h>]],
2328 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2329 emacs_xkb=yes, emacs_xkb=no)
2330 AC_MSG_RESULT($emacs_xkb)
2331 if test $emacs_xkb = yes; then
2332 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2335 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2336 XScreenNumberOfScreen)
2339 if test "${window_system}" = "x11"; then
2340 AC_MSG_CHECKING(X11 version 6)
2341 AC_CACHE_VAL(emacs_cv_x11_version_6,
2342 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2343 [[#if XlibSpecificationRelease < 6
2346 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2347 if test $emacs_cv_x11_version_6 = yes; then
2348 AC_MSG_RESULT(6 or newer)
2349 AC_DEFINE(HAVE_X11R6, 1,
2350 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2351 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2352 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2356 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2357 [Define if you have usable X11R6-style XIM support.])
2361 AC_MSG_RESULT(before 6)
2366 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2368 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2369 if test "${with_rsvg}" != "no"; then
2370 RSVG_REQUIRED=2.11.0
2371 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2373 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2374 AC_SUBST(RSVG_CFLAGS)
2377 if test $HAVE_RSVG = yes; then
2378 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2379 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2380 # Windows loads librsvg dynamically
2381 if test "${opsys}" = "mingw32"; then
2389 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2390 if test "${with_imagemagick}" != "no"; then
2391 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2392 ## 6.8.2 makes Emacs crash; see Bug#13867.
2393 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2394 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2395 AC_SUBST(IMAGEMAGICK_CFLAGS)
2396 AC_SUBST(IMAGEMAGICK_LIBS)
2398 if test $HAVE_IMAGEMAGICK = yes; then
2399 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2402 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2403 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2404 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2414 gtk_term_header=$term_header
2417 if test "${opsys}" != "mingw32"; then
2418 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2421 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2423 dnl Checks for libraries.
2424 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2425 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2426 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2427 AC_MSG_ERROR($GTK_PKG_ERRORS)
2429 if test "$pkg_check_gtk" = "yes"; then
2430 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2431 GTK_OBJ=emacsgtkfixed.o
2432 gtk_term_header=gtkutil.h
2433 USE_GTK_TOOLKIT="GTK3"
2434 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2435 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2436 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2437 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2438 [Define to 1 to disable Glib deprecation warnings.])
2442 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2446 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2449 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2451 dnl Checks for libraries.
2452 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2453 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2454 if test "$pkg_check_gtk" = "no" &&
2455 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2457 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2459 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2466 if test x"$pkg_check_gtk" = xyes; then
2469 CFLAGS="$CFLAGS $GTK_CFLAGS"
2470 LIBS="$GTK_LIBS $LIBS"
2471 dnl Try to compile a simple GTK program.
2472 AC_MSG_CHECKING([whether GTK compiles])
2476 [[/* Check the Gtk and Glib APIs. */
2477 #include <gtk/gtk.h>
2478 #include <glib-object.h>
2480 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2484 GtkSettings *gs = 0;
2485 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2486 strict C prohibits this. Use gtk_main_iteration to test that the
2487 libraries are there. */
2488 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2489 0, 0, 0, G_CALLBACK (callback), 0))
2490 gtk_main_iteration ();
2493 AC_MSG_RESULT([$GTK_COMPILES])
2494 if test "${GTK_COMPILES}" != "yes"; then
2496 if test "$USE_X_TOOLKIT" != "maybe"; then
2497 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2500 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2502 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2503 GTK_OBJ="gtkutil.o $GTK_OBJ"
2504 term_header=$gtk_term_header
2506 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2507 closing open displays. This is no problem if you just use
2508 one display, but if you use more than one and close one of them
2510 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2518 if test "${HAVE_GTK}" = "yes"; then
2520 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2521 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2522 if test "$with_toolkit_scroll_bars" != no; then
2523 with_toolkit_scroll_bars=yes
2526 dnl Check if we have the old file selection dialog declared and
2527 dnl in the link library. In 2.x it may be in the library,
2528 dnl but not declared if deprecated featured has been selected out.
2529 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2530 HAVE_GTK_FILE_SELECTION=no
2531 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2532 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2533 #include <gtk/gtk.h>])
2534 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2535 AC_CHECK_FUNCS(gtk_file_selection_new)
2538 dnl Same as above for gtk_handle_box.
2539 HAVE_GTK_HANDLE_BOX=no
2540 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2541 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2542 #include <gtk/gtk.h>])
2543 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2544 AC_CHECK_FUNCS(gtk_handle_box_new)
2547 dnl Same as above for gtk_tearoff_menu_item.
2548 HAVE_GTK_TEAROFF_MENU_ITEM=no
2549 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2550 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2551 #include <gtk/gtk.h>])
2552 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2553 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2556 dnl Check for functions introduced in 2.14 and later.
2557 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2558 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2559 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2560 gtk_orientable_set_orientation \
2561 gtk_window_set_has_resize_grip)
2563 term_header=gtkutil.h
2569 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2570 dnl other platforms.
2573 if test "${with_dbus}" = "yes"; then
2574 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2575 if test "$HAVE_DBUS" = yes; then
2576 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2577 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2578 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2581 LIBS="$LIBS $DBUS_LIBS"
2582 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2583 dbus_type_is_valid \
2584 dbus_validate_bus_name \
2585 dbus_validate_path \
2586 dbus_validate_interface \
2587 dbus_validate_member)
2592 AC_SUBST(DBUS_CFLAGS)
2596 dnl GSettings has been tested under GNU/Linux only.
2598 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2599 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2600 if test "$HAVE_GSETTINGS" = "yes"; then
2602 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2604 LIBS="$LIBS $GSETTINGS_LIBS"
2605 AC_MSG_CHECKING([whether GSettings is in gio])
2608 [[/* Check that gsettings really is present. */
2609 #include <glib-object.h>
2610 #include <gio/gio.h>
2613 GSettings *settings;
2614 GVariant *val = g_settings_get_value (settings, "");
2616 [], HAVE_GSETTINGS=no)
2617 AC_MSG_RESULT([$HAVE_GSETTINGS])
2619 if test "$HAVE_GSETTINGS" = "yes"; then
2620 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2621 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2622 SETTINGS_LIBS="$GSETTINGS_LIBS"
2629 dnl GConf has been tested under GNU/Linux only.
2630 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2632 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2633 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2634 if test "$HAVE_GCONF" = yes; then
2635 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2636 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2637 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2638 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2642 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2643 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2644 if test "$HAVE_GOBJECT" = "yes"; then
2645 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2646 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2648 SAVE_CFLAGS="$CFLAGS"
2650 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2651 LIBS="$SETTINGS_LIBS $LIBS"
2652 CFLAGS="$SAVE_CFLAGS"
2655 AC_SUBST(SETTINGS_CFLAGS)
2656 AC_SUBST(SETTINGS_LIBS)
2659 dnl SELinux is available for GNU/Linux only.
2662 if test "${with_selinux}" = "yes"; then
2663 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2664 if test "$HAVE_LIBSELINUX" = yes; then
2665 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2666 LIBSELINUX_LIBS=-lselinux
2669 AC_SUBST(LIBSELINUX_LIBS)
2672 if test "${with_gnutls}" = "yes" ; then
2673 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2674 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2675 if test "${HAVE_GNUTLS}" = "yes"; then
2676 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2677 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2678 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2681 # Windows loads GnuTLS dynamically
2682 if test "${opsys}" = "mingw32"; then
2687 AC_SUBST(LIBGNUTLS_LIBS)
2688 AC_SUBST(LIBGNUTLS_CFLAGS)
2693 dnl MS Windows native file monitor is available for mingw32 only.
2694 case $with_file_notification,$opsys in
2696 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2697 this is only supported on MS-Windows native and MinGW32 builds.
2698 Consider using gfile instead.])
2700 w32,* | yes,mingw32)
2701 AC_CHECK_HEADER(windows.h)
2702 if test "$ac_cv_header_windows_h" = yes ; then
2703 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2704 NOTIFY_OBJ=w32notify.o
2705 NOTIFY_SUMMARY="yes (w32)"
2709 dnl inotify is available only on GNU/Linux.
2710 case $with_file_notification,$NOTIFY_OBJ in
2712 AC_CHECK_HEADER(sys/inotify.h)
2713 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2714 AC_CHECK_FUNC(inotify_init1)
2715 if test "$ac_cv_func_inotify_init1" = yes; then
2716 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2717 NOTIFY_OBJ=inotify.o
2718 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2723 dnl kqueue is available on BSD-like systems.
2724 case $with_file_notification,$NOTIFY_OBJ in
2726 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2727 if test "$HAVE_KQUEUE" = "yes"; then
2728 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2729 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2730 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2731 NOTIFY_LIBS=$KQUEUE_LIBS
2733 NOTIFY_SUMMARY="yes -lkqueue"
2735 AC_SEARCH_LIBS(kqueue, [])
2736 if test "$ac_cv_search_kqueue" != no; then
2737 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2739 NOTIFY_SUMMARY="yes (kqueue)"
2744 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2745 dnl has been added in glib 2.24. It has been tested under
2747 case $with_file_notification,$NOTIFY_OBJ in
2749 if test "${HAVE_NS}" = yes; then
2750 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2751 Consider kqueue instead.])
2753 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2754 if test "$HAVE_GFILENOTIFY" = "yes"; then
2755 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2756 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2757 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2758 NOTIFY_OBJ=gfilenotify.o
2759 NOTIFY_SUMMARY="yes -lgio (gfile)"
2764 case $with_file_notification,$NOTIFY_OBJ in
2765 yes,* | no,* | *,?*) ;;
2766 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2769 if test -n "$NOTIFY_OBJ"; then
2770 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2772 AC_SUBST(NOTIFY_CFLAGS)
2773 AC_SUBST(NOTIFY_LIBS)
2774 AC_SUBST(NOTIFY_OBJ)
2776 dnl Do not put whitespace before the #include statements below.
2777 dnl Older compilers (eg sunos4 cc) choke on it.
2780 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2781 if test "$with_xaw3d" != no; then
2782 AC_CACHE_VAL(emacs_cv_xaw3d,
2783 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2784 #include <X11/Intrinsic.h>
2785 #include <X11/Xaw3d/Simple.h>]],
2787 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2788 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2789 emacs_cv_xaw3d=no)])
2793 if test $emacs_cv_xaw3d = yes; then
2794 AC_MSG_CHECKING(for xaw3d)
2795 AC_MSG_RESULT([yes; using Lucid toolkit])
2799 AC_DEFINE(HAVE_XAW3D, 1,
2800 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2802 AC_MSG_CHECKING(for xaw3d)
2804 AC_MSG_CHECKING(for libXaw)
2805 AC_CACHE_VAL(emacs_cv_xaw,
2806 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2807 #include <X11/Intrinsic.h>
2808 #include <X11/Xaw/Simple.h>]],
2812 if test $emacs_cv_xaw = yes; then
2813 AC_MSG_RESULT([yes; using Lucid toolkit])
2816 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2817 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2819 AC_MSG_ERROR([No X toolkit could be found.
2820 If you are sure you want Emacs compiled without an X toolkit, pass
2822 to configure. Otherwise, install the development libraries for the toolkit
2823 that you want to use (e.g. Gtk+) and re-run configure.])
2828 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2832 if test "${USE_X_TOOLKIT}" != "none"; then
2833 AC_MSG_CHECKING(X11 toolkit version)
2834 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2835 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2836 [[#if XtSpecificationRelease < 6
2839 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2840 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2841 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2842 AC_MSG_RESULT(6 or newer)
2843 AC_DEFINE(HAVE_X11XTR6, 1,
2844 [Define to 1 if you have the X11R6 or newer version of Xt.])
2845 LIBXTR6="-lSM -lICE"
2847 ## Use libw.a along with X11R6 Xt.
2848 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2851 AC_MSG_RESULT(before 6)
2854 dnl If using toolkit, check whether libXmu.a exists.
2855 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2857 if test x$HAVE_X11XTR6 = xyes; then
2858 OTHERLIBS='-lXt -lSM -lICE'
2862 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2863 if test "X$LIBS" != "X$OLDLIBS"; then
2864 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2867 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2873 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2874 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2875 if test -d /usr/include/openmotif; then
2876 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2877 emacs_cv_openmotif=yes
2878 case "$canonical" in
2879 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2880 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2883 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2886 emacs_cv_openmotif=no
2888 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2889 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2890 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2893 Motif version prior to 2.1.
2895 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2896 if test $emacs_cv_motif_version_2_1 = yes; then
2897 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2898 if test x$emacs_cv_openmotif = xyes; then
2899 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2902 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2903 # We put this in CFLAGS temporarily to precede other -I options
2904 # that might be in CFLAGS temporarily.
2905 # We put this in CPPFLAGS where it precedes the other -I options.
2906 OLD_CPPFLAGS=$CPPFLAGS
2908 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2909 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2910 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2912 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2913 if test $emacs_cv_lesstif = yes; then
2914 # Make sure this -I option remains in CPPFLAGS after it is set
2915 # back to REAL_CPPFLAGS.
2916 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2917 # have those other -I options anyway. Ultimately, having this
2918 # directory ultimately in CPPFLAGS will be enough.
2919 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2920 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2923 CPPFLAGS=$OLD_CPPFLAGS
2926 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2927 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2930 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2931 dnl using Motif or Xaw3d is available, and unless
2932 dnl --with-toolkit-scroll-bars=no was specified.
2934 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2935 [Define to 1 if we should use toolkit scroll bars.])dnl
2936 USE_TOOLKIT_SCROLL_BARS=no
2937 if test "${with_toolkit_scroll_bars}" != "no"; then
2938 if test "${USE_X_TOOLKIT}" != "none"; then
2939 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2940 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2942 USE_TOOLKIT_SCROLL_BARS=yes
2943 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2944 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2945 USE_TOOLKIT_SCROLL_BARS=yes
2947 elif test "${HAVE_GTK}" = "yes"; then
2948 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2949 USE_TOOLKIT_SCROLL_BARS=yes
2950 elif test "${HAVE_NS}" = "yes"; then
2951 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2952 USE_TOOLKIT_SCROLL_BARS=yes
2953 elif test "${HAVE_W32}" = "yes"; then
2954 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2955 USE_TOOLKIT_SCROLL_BARS=yes
2959 dnl See if XIM is available.
2960 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2961 #include <X11/Xlib.h>
2962 #include <X11/Xresource.h>]],
2963 [[XIMProc callback;]])],
2965 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2968 dnl '--with-xim' now controls only the initial value of use_xim at run time.
2970 if test "${with_xim}" != "no"; then
2971 AC_DEFINE(USE_XIM, 1,
2972 [Define to 1 if we should use XIM, if it is available.])
2976 if test "${HAVE_XIM}" != "no"; then
2978 if test "$GCC" = yes; then
2979 CFLAGS="$CFLAGS --pedantic-errors"
2981 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2982 #include <X11/Xlib.h>
2983 #include <X11/Xresource.h>]],
2989 XPointer *client_data;
2991 /* If we're not using GCC, it's probably not XFree86, and this is
2992 probably right, but we can't use something like --pedantic-errors. */
2993 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2994 char*, XIMProc, XPointer*);
2996 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2998 [emacs_cv_arg6_star=yes])
2999 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3000 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3001 either XPointer or XPointer*.])dnl
3002 if test "$emacs_cv_arg6_star" = yes; then
3003 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3005 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3010 ### Start of font-backend (under any platform) section.
3011 # (nothing here yet -- this is a placeholder)
3012 ### End of font-backend (under any platform) section.
3014 ### Start of font-backend (under X11) section.
3015 if test "${HAVE_X11}" = "yes"; then
3016 ## Use -lXft if available, unless '--with-xft=no'.
3018 if test "x${with_x}" = "xno"; then
3022 if test "$with_xft" != no; then
3023 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3024 with_xft=$HAVE_FONTCONFIG
3027 if test "x${with_xft}" != "xno"; then
3029 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3030 ## Because xftfont.c uses XRenderQueryExtension, we also
3031 ## need to link to -lXrender.
3033 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3034 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3035 OLD_CPPFLAGS="$CPPFLAGS"
3036 OLD_CFLAGS="$CFLAGS"
3038 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3039 CFLAGS="$CFLAGS $XFT_CFLAGS"
3040 XFT_LIBS="-lXrender $XFT_LIBS"
3041 LIBS="$XFT_LIBS $LIBS"
3042 AC_CHECK_HEADER(X11/Xft/Xft.h,
3043 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3044 [[#include <X11/X.h>]])
3046 if test "${HAVE_XFT}" = "yes"; then
3047 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3049 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3050 fi # "${HAVE_XFT}" = "yes"
3051 CPPFLAGS=$OLD_CPPFLAGS
3054 fi # "$HAVE_XFT" != no
3055 fi # "x${with_xft}" != "xno"
3057 ## We used to allow building with FreeType and without Xft.
3058 ## However, the ftx font backend driver is not in good shape.
3059 if test "$HAVE_XFT" != "yes"; then
3060 dnl For the "Does Emacs use" message at the end.
3064 dnl Strict linkers fail with
3065 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3066 dnl if -lfreetype is not specified.
3067 dnl The following is needed to set FREETYPE_LIBS.
3068 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3070 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3074 if test "${HAVE_FREETYPE}" = "yes"; then
3075 AC_DEFINE(HAVE_FREETYPE, 1,
3076 [Define to 1 if using the freetype and fontconfig libraries.])
3077 if test "${with_libotf}" != "no"; then
3078 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3079 if test "$HAVE_LIBOTF" = "yes"; then
3080 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3081 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3082 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3083 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3084 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3085 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3086 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3090 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3091 dnl Does the new font backend require it, or can it work without it?
3095 if test "${HAVE_LIBOTF}" = yes; then
3096 if test "${with_m17n_flt}" != "no"; then
3097 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3098 if test "$HAVE_M17N_FLT" = "yes"; then
3099 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3110 ### End of font-backend (under X11) section.
3112 AC_SUBST(FREETYPE_CFLAGS)
3113 AC_SUBST(FREETYPE_LIBS)
3114 AC_SUBST(FONTCONFIG_CFLAGS)
3115 AC_SUBST(FONTCONFIG_LIBS)
3116 AC_SUBST(LIBOTF_CFLAGS)
3117 AC_SUBST(LIBOTF_LIBS)
3118 AC_SUBST(M17N_FLT_CFLAGS)
3119 AC_SUBST(M17N_FLT_LIBS)
3122 if test "${HAVE_X11}" = "yes"; then
3123 if test "${with_cairo}" != "no"; then
3124 CAIRO_REQUIRED=1.12.0
3125 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3126 PKG_CHECK_MODULES(CAIRO, $CAIRO_MODULE, USE_CAIRO=yes, :)
3127 if test $USE_CAIRO = yes; then
3128 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3130 AC_MSG_ERROR([cairo requested but not found.])
3133 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3134 LIBS="$LIBS $CAIRO_LIBS"
3135 AC_SUBST(CAIRO_CFLAGS)
3136 AC_SUBST(CAIRO_LIBS)
3140 if test "${HAVE_X11}" = "yes"; then
3141 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3142 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3143 if test "${HAVE_XCB}" = "yes"; then
3144 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3145 if test "${HAVE_X11_XCB}" = "yes"; then
3146 AC_DEFINE(USE_XCB, 1,
3147 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3148 X11/XCB programming.])
3149 XCB_LIBS="-lX11-xcb -lxcb"
3155 ### Use -lXpm if available, unless '--with-xpm=no'.
3156 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3157 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3158 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3159 ### LDFLAGS) accordingly.
3162 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3163 if test "${with_xpm}" != "no"; then
3164 SAVE_CPPFLAGS="$CPPFLAGS"
3165 SAVE_LDFLAGS="$LDFLAGS"
3166 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3167 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3168 AC_CHECK_HEADER(X11/xpm.h,
3169 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3170 if test "${HAVE_XPM}" = "yes"; then
3171 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3172 AC_EGREP_CPP(no_return_alloc_pixels,
3173 [#include "X11/xpm.h"
3174 #ifndef XpmReturnAllocPixels
3175 no_return_alloc_pixels
3177 ], HAVE_XPM=no, HAVE_XPM=yes)
3179 if test "${HAVE_XPM}" = "yes"; then
3180 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3184 CPPFLAGS="$SAVE_CPPFLAGS"
3185 LDFLAGS="$SAVE_LDFLAGS"
3190 if test "${HAVE_XPM}" = "yes"; then
3191 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3196 if test "${HAVE_X11}" = "yes"; then
3197 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3198 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3200 if test "${with_xpm}" != "no"; then
3201 AC_CHECK_HEADER(X11/xpm.h,
3202 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3203 if test "${HAVE_XPM}" = "yes"; then
3204 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3205 AC_EGREP_CPP(no_return_alloc_pixels,
3206 [#include "X11/xpm.h"
3207 #ifndef XpmReturnAllocPixels
3208 no_return_alloc_pixels
3210 ], HAVE_XPM=no, HAVE_XPM=yes)
3212 if test "${HAVE_XPM}" = "yes"; then
3220 if test "${HAVE_XPM}" = "yes"; then
3221 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3223 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3224 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3229 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3230 ### slightly different requirements wrt image libraries (it doesn't
3231 ### use -lXpm because it loads the xpm shared library dynamically at
3233 if test "${opsys}" = "mingw32"; then
3234 if test "${with_xpm}" != "no"; then
3235 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3239 if test "${HAVE_XPM}" = "yes"; then
3240 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3246 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3249 if test "${with_jpeg}" != "no"; then
3250 AC_CACHE_CHECK([for jpeglib 6b or later],
3253 for emacs_cv_jpeglib in yes -ljpeg no; do
3254 case $emacs_cv_jpeglib in
3257 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3261 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3262 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3263 #include <jpeglib.h>
3265 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3266 struct jpeg_decompress_struct cinfo;
3269 jpeg_create_decompress (&cinfo);
3270 WARNMS (&cinfo, JWRN_JPEG_EOF);
3271 jpeg_destroy_decompress (&cinfo);
3273 [emacs_link_ok=yes],
3276 test $emacs_link_ok = yes && break
3278 if test "$emacs_cv_jpeglib" != no; then
3280 AC_DEFINE([HAVE_JPEG], 1,
3281 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3282 ### mingw32 doesn't use -ljpeg, since it loads the library
3283 ### dynamically when needed, and doesn't want a run-time
3284 ### dependency on the jpeglib DLL.
3285 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3286 && LIBJPEG=$emacs_cv_jpeglib
3293 if test "${with_zlib}" != "no"; then
3295 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3297 case $ac_cv_search_inflateEnd in
3298 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3301 if test "${HAVE_ZLIB}" = "yes"; then
3302 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3303 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3304 if test "${opsys}" = "mingw32"; then
3310 ### Dynamic modules support
3315 if test "${with_modules}" != "no"; then
3316 if test "$opsys" = "gnu-linux"; then
3318 MODULES_SUFFIX=".so"
3320 elif test "$opsys" = "cygwin"; then
3321 MODULES_SUFFIX=".dll"
3323 elif test "$opsys" = "darwin"; then
3324 MODULES_SUFFIX=".so"
3326 elif test "$opsys" = "mingw32"; then
3327 MODULES_SUFFIX=".dll"
3330 # BSD system have dlopen in the libc
3331 AC_CHECK_FUNC(dlopen, [MODULES_SUFFIX=".so"]
3332 [HAVE_MODULES=yes], [])
3335 if test "${HAVE_MODULES}" = no; then
3336 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3339 LIBS="$LIBS $LIBMODULES"
3340 AC_CHECK_FUNCS([dlfunc])
3345 if test "${HAVE_MODULES}" = yes; then
3346 MODULES_OBJ="dynlib.o emacs-module.o"
3347 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3348 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3349 [System extension for dynamic libraries])
3351 AC_SUBST(MODULES_OBJ)
3352 AC_SUBST(LIBMODULES)
3353 AC_CHECK_FUNCS(dladdr)
3355 ### Use -lpng if available, unless '--with-png=no'.
3359 if test "${NS_IMPL_COCOA}" = yes; then
3361 elif test "${with_png}" != no; then
3362 # mingw32 loads the library dynamically.
3363 if test "$opsys" = mingw32; then
3364 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3365 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3366 AC_MSG_CHECKING([for png])
3367 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3368 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3369 # libpng-config does not work; configure by hand.
3370 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3371 # in /usr/include/libpng.
3372 if test -r /usr/include/libpng/png.h &&
3373 test ! -r /usr/include/png.h; then
3374 png_cflags=-I/usr/include/libpng
3382 CFLAGS="$CFLAGS $png_cflags"
3383 LIBS="$png_libs -lz -lm $LIBS"
3385 [AC_LANG_PROGRAM([[#include <png.h>]],
3386 [[return !png_get_channels (0, 0);]])],
3388 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3390 # $LIBPNG requires explicit -lz in some cases.
3391 # We don't know what those cases are, exactly, so play it safe and
3392 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3393 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3394 LIBPNG="$LIBPNG -lz"
3398 AC_MSG_RESULT([$HAVE_PNG])
3401 if test $HAVE_PNG = yes; then
3402 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3405 CFLAGS="$CFLAGS $PNG_CFLAGS"
3406 AC_CHECK_DECL([png_longjmp],
3408 [AC_DEFINE([PNG_DEPSTRUCT], [],
3409 [Define to empty to suppress deprecation warnings when building
3410 with --enable-gcc-warnings and with libpng versions before 1.5,
3411 which lack png_longjmp.])],
3417 AC_SUBST(PNG_CFLAGS)
3419 ### Use -ltiff if available, unless '--with-tiff=no'.
3420 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3423 if test "${opsys}" = "mingw32"; then
3424 if test "${with_tiff}" != "no"; then
3425 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3427 if test "${HAVE_TIFF}" = "yes"; then
3428 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3430 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3431 if test "${with_tiff}" != "no"; then
3432 AC_CHECK_HEADER(tiffio.h,
3434 # At least one tiff package requires the jpeg library.
3435 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3436 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3439 if test "${HAVE_TIFF}" = "yes"; then
3440 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3441 dnl FIXME -lz -lm, as per libpng?
3447 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3448 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3451 if test "${opsys}" = "mingw32"; then
3452 if test "${with_gif}" != "no"; then
3453 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3455 if test "${HAVE_GIF}" = "yes"; then
3456 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3458 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3459 || test "${HAVE_W32}" = "yes"; then
3460 AC_CHECK_HEADER(gif_lib.h,
3461 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3462 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3463 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3464 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3466 if test "$HAVE_GIF" = yes; then
3468 elif test "$HAVE_GIF" = maybe; then
3469 # If gif_lib.h but no libgif, try libungif.
3470 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3471 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3474 if test "${HAVE_GIF}" = "yes"; then
3475 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3480 dnl Check for required libraries.
3481 if test "${HAVE_X11}" = "yes"; then
3484 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3485 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3486 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3487 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3488 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3489 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3490 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3491 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3492 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3493 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3495 if test "X${MISSING}" != X; then
3496 AC_MSG_ERROR([The following required libraries were not found:
3498 Maybe some development libraries/packages are missing?
3499 If you don't want to link with them give
3501 as options to configure])
3505 ### Use -lgpm if available, unless '--with-gpm=no'.
3508 if test "${with_gpm}" != "no"; then
3509 AC_CHECK_HEADER(gpm.h,
3510 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3512 if test "${HAVE_GPM}" = "yes"; then
3513 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3519 dnl Check for malloc/malloc.h on darwin
3520 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3523 ### Use NeXTstep API to implement GUI.
3524 if test "${HAVE_NS}" = "yes"; then
3525 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3526 if test "${NS_IMPL_COCOA}" = "yes"; then
3527 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3529 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3530 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3531 if test $NS_GNUSTEP_CONFIG != yes; then
3532 # See also .m.o rule in src/Makefile.in. */
3533 # FIXME: are all these flags really needed? Document here why. */
3534 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3535 ## Extra CFLAGS applied to src/*.m files.
3536 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3542 ### Use session management (-lSM -lICE) if available
3545 if test "${HAVE_X11}" = "yes"; then
3546 AC_CHECK_HEADER(X11/SM/SMlib.h,
3547 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3549 if test "${HAVE_X_SM}" = "yes"; then
3550 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3556 ### Use XRandr (-lXrandr) if available
3558 if test "${HAVE_X11}" = "yes"; then
3559 XRANDR_REQUIRED=1.2.2
3560 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3561 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3562 if test $HAVE_XRANDR = no; then
3563 # Test old way in case pkg-config doesn't have it (older machines).
3564 # Include Xrender.h by hand to work around bug in older Xrandr.h
3565 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3566 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3567 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3568 [], [AC_INCLUDES_DEFAULT
3569 #include <X11/extensions/Xrender.h>])
3570 if test $HAVE_XRANDR = yes; then
3571 XRANDR_LIBS=-lXrandr
3574 if test $HAVE_XRANDR = yes; then
3575 SAVE_CFLAGS="$CFLAGS"
3577 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3578 LIBS="$XRANDR_LIBS $LIBS"
3579 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3580 CFLAGS="$SAVE_CFLAGS"
3583 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3586 AC_SUBST(XRANDR_CFLAGS)
3587 AC_SUBST(XRANDR_LIBS)
3589 ### Use Xinerama (-lXinerama) if available
3591 if test "${HAVE_X11}" = "yes"; then
3592 XINERAMA_REQUIRED=1.0.2
3593 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3594 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3595 if test $HAVE_XINERAMA = no; then
3596 # Test old way in case pkg-config doesn't have it (older machines).
3597 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3598 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3599 if test $HAVE_XINERAMA = yes; then
3600 XINERAMA_LIBS=-lXinerama
3603 if test $HAVE_XINERAMA = yes; then
3604 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3607 AC_SUBST(XINERAMA_CFLAGS)
3608 AC_SUBST(XINERAMA_LIBS)
3610 ### Use Xfixes (-lXfixes) if available
3612 if test "${HAVE_X11}" = "yes"; then
3613 XFIXES_REQUIRED=4.0.0
3614 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3615 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3616 if test $HAVE_XFIXES = no; then
3617 # Test old way in case pkg-config doesn't have it (older machines).
3618 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3619 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3620 if test $HAVE_XFIXES = yes; then
3621 XFIXES_LIBS=-lXfixes
3624 if test $HAVE_XFIXES = yes; then
3625 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3628 AC_SUBST(XFIXES_CFLAGS)
3629 AC_SUBST(XFIXES_LIBS)
3631 ### Use libxml (-lxml2) if available
3632 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3634 if test "${with_xml2}" != "no"; then
3635 ### I'm not sure what the version number should be, so I just guessed.
3636 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3637 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3638 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3639 SAVE_CPPFLAGS="$CPPFLAGS"
3640 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3641 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3642 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3644 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3648 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3649 AC_CHECK_HEADER(libxml/HTMLparser.h,
3650 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3651 [#include <libxml/HTMLparser.h>])])
3652 CPPFLAGS="$SAVE_CPPFLAGS"
3653 if test "${HAVE_LIBXML2}" = "yes"; then
3654 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3655 LIBXML2_LIBS="-lxml2"
3658 if test "${HAVE_LIBXML2}" = "yes"; then
3659 if test "${opsys}" != "mingw32"; then
3660 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3665 if test "${HAVE_LIBXML2}" = "yes"; then
3666 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3673 AC_SUBST(LIBXML2_LIBS)
3674 AC_SUBST(LIBXML2_CFLAGS)
3676 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3677 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3678 if test "${opsys}" = "mingw32"; then
3679 emacs_cv_netdb_declares_h_errno=yes
3681 AC_CACHE_CHECK(whether netdb declares h_errno,
3682 emacs_cv_netdb_declares_h_errno,
3683 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3684 [[return h_errno;]])],
3685 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3686 if test $emacs_cv_netdb_declares_h_errno = yes; then
3687 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3690 # Check for mail-locking functions in a "mail" library. Probably this should
3691 # have the same check as for liblockfile below.
3692 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3693 if test $have_mail = yes; then
3695 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3698 LIBS="$LIBS_MAIL $LIBS"
3699 AC_CHECK_FUNCS(touchlock)
3704 dnl Debian, at least:
3705 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3706 if test $have_lockfile = yes; then
3707 LIBS_MAIL=-llockfile
3708 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3710 # If we have the shared liblockfile, assume we must use it for mail
3711 # locking (e.g. Debian). If we couldn't link against liblockfile
3712 # (no liblockfile.a installed), ensure that we don't need to.
3713 dnl This works for files generally, not just executables.
3714 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3715 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3716 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3717 if test $ac_cv_prog_liblockfile = yes; then
3718 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3719 This probably means that movemail could lose mail.
3720 There may be a 'development' package to install containing liblockfile.])
3723 AC_CHECK_HEADERS_ONCE(maillock.h)
3726 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3727 ## interlock access to the mail spool. The alternative is a lock file named
3728 ## /usr/spool/mail/$USER.lock.
3731 aix4-2) mail_lock="lockf" ;;
3733 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3735 ## On GNU/Linux systems, both methods are used by various mail programs.
3736 ## I assume most people are using newer mailers that have heard of flock.
3737 ## Change this if you need to.
3738 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3739 ## configure gets the right answers, and that means *NOT* using flock.
3740 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3741 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3742 ## Debian maintainer hasn't provided a clean fix for Emacs.
3743 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3744 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3745 ## correct logic. -- fx
3746 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3747 ## liblockfile is a Free Software replacement for libmail, used on
3748 ## Debian systems and elsewhere. -rfr.
3751 if test $have_mail = yes || test $have_lockfile = yes; then
3752 test $ac_cv_header_maillock_h = yes && mail_lock=no
3757 mail_lock="none-needed" ;;
3761 case "$mail_lock" in
3762 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3764 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3768 *) BLESSMAIL_TARGET="need-blessmail" ;;
3770 AC_SUBST(BLESSMAIL_TARGET)
3773 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3774 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3775 getrusage get_current_dir_name \
3776 lrand48 random rint \
3777 select getpagesize setlocale newlocale \
3778 getrlimit setrlimit shutdown getaddrinfo \
3779 pthread_sigmask strsignal setitimer \
3780 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3782 getpwent endpwent getgrent endgrent \
3783 cfmakeraw cfsetspeed copysign __executable_start log2)
3786 dnl No need to check for aligned_alloc and posix_memalign if using
3787 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3788 dnl Don't use these functions on Darwin as they are incompatible with
3790 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3791 && test "$opsys" != darwin; then
3792 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3795 dnl Cannot use AC_CHECK_FUNCS
3796 AC_CACHE_CHECK([for __builtin_unwind_init],
3797 emacs_cv_func___builtin_unwind_init,
3798 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3799 emacs_cv_func___builtin_unwind_init=yes,
3800 emacs_cv_func___builtin_unwind_init=no)])
3801 if test $emacs_cv_func___builtin_unwind_init = yes; then
3802 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3803 [Define to 1 if you have the '__builtin_unwind_init' function.])
3806 AC_CHECK_HEADERS_ONCE(sys/un.h)
3811 AC_CHECK_FUNCS(grantpt)
3813 # PTY-related GNU extensions.
3814 AC_CHECK_FUNCS(getpt posix_openpt)
3816 # Check this now, so that we will NOT find the above functions in ncurses.
3817 # That is because we have not set up to link ncurses in lib-src.
3818 # It's better to believe a function is not available
3819 # than to expect to find it in ncurses.
3820 # Also we need tputs and friends to be able to build at all.
3821 AC_MSG_CHECKING([for library containing tputs])
3822 # Run a test program that contains a call to tputs, a call that is
3823 # never executed. This tests whether a pre-'main' dynamic linker
3824 # works with the library. It's too much trouble to actually call
3825 # tputs in the test program, due to portability hassles. When
3826 # cross-compiling, assume the test program will run if it links.
3827 AC_DEFUN([tputs_link_source], [
3829 [[extern void tputs (const char *, int, int (*)(int));
3830 int main (int argc, char **argv)
3833 tputs (argv[0], 0, 0);
3837 if test "${opsys}" = "mingw32"; then
3840 # Maybe curses should be tried earlier?
3841 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3842 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3844 if test -z "$tputs_library"; then
3848 LIBS_TERMCAP=-l$tputs_library
3850 LIBS="$LIBS_TERMCAP $LIBS"
3852 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3853 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3855 if test "X$msg" != Xno; then
3860 AC_MSG_RESULT([$msg])
3861 if test "X$msg" = Xno; then
3862 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3863 The following libraries were tried (in order):
3864 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3865 Please try installing whichever of these libraries is most appropriate
3866 for your system, together with its header files.
3867 For example, a libncurses-dev(el) or similar package.])
3870 ## Use termcap instead of terminfo?
3871 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3873 ## FIXME? In the cases below where we unconditionally set
3874 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3875 ## if that was found above to have tputs.
3876 ## Should we use the gnu* logic everywhere?
3878 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3879 ## The ncurses library has been moved out of the System framework in
3880 ## Mac OS X 10.2. So if configure detects it, set the command-line
3881 ## option to use it.
3882 darwin) LIBS_TERMCAP="-lncurses" ;;
3884 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3887 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3888 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3889 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3890 [[#if __FreeBSD_version < 400000
3893 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3895 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3897 if test $emacs_cv_freebsd_terminfo = yes; then
3898 LIBS_TERMCAP="-lncurses"
3901 LIBS_TERMCAP="-ltermcap"
3911 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3913 LIBS_TERMCAP="-ltermcap"
3917 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3919 ## hpux: Make sure we get select from libc rather than from libcurses
3920 ## because libcurses on HPUX 10.10 has a broken version of select.
3921 ## We used to use -lc -lcurses, but this may be cleaner.
3922 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3923 # set that way, now it uses the default). Isn't this a contradiction?
3924 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3928 TERMCAP_OBJ=tparam.o
3929 if test $TERMINFO = yes; then
3930 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3931 TERMCAP_OBJ=terminfo.o
3933 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3934 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3936 AC_SUBST(LIBS_TERMCAP)
3937 AC_SUBST(TERMCAP_OBJ)
3939 # GNU/Linux-specific timer functions.
3940 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3942 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3944 [[timerfd_create (CLOCK_REALTIME,
3945 TFD_CLOEXEC | TFD_NONBLOCK);
3946 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3947 [emacs_cv_have_timerfd=yes],
3948 [emacs_cv_have_timerfd=no])])
3949 if test "$emacs_cv_have_timerfd" = yes; then
3950 AC_DEFINE([HAVE_TIMERFD], 1,
3951 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3954 # Alternate stack for signal handlers.
3955 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3956 [emacs_cv_alternate_stack],
3958 [AC_LANG_PROGRAM([[#include <signal.h>
3961 struct sigaction sa;
3962 ss.ss_sp = malloc (SIGSTKSZ);
3963 ss.ss_size = SIGSTKSZ;
3964 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3965 sigaltstack (&ss, 0);
3966 sigaction (SIGSEGV, &sa, 0);]])],
3967 [emacs_cv_alternate_stack=yes],
3968 [emacs_cv_alternate_stack=no])])
3970 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3971 # On Darwin, res_init appears not to be useful: see bug#562 and
3972 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3975 if test $opsys != darwin; then
3977 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3978 #include <arpa/nameser.h>
3979 #include <resolv.h>]],
3980 [[return res_init();]])],
3981 have_res_init=yes, have_res_init=no)
3982 if test "$have_res_init" = no; then
3984 LIBS="$LIBS -lresolv"
3985 AC_MSG_CHECKING(for res_init with -lresolv)
3986 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3987 #include <arpa/nameser.h>
3988 #include <resolv.h>]],
3989 [[return res_init();]])],
3990 have_res_init=yes, have_res_init=no)
3991 AC_MSG_RESULT($have_res_init)
3992 if test "$have_res_init" = yes ; then
3998 if test "$have_res_init" = yes; then
3999 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
4003 # Do we need the Hesiod library to provide the support routines?
4004 dnl FIXME? Should we be skipping this on Darwin too?
4006 if test "$with_hesiod" != no ; then
4007 # Don't set $LIBS here -- see comments above. FIXME which comments?
4008 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4009 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4010 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4011 if test "$resolv" = yes ; then
4016 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4017 hesiod=yes, :, $RESOLVLIB)])
4019 if test x"$hesiod" = xyes; then
4025 # Do we need libresolv (due to res_init or Hesiod)?
4026 if test "$resolv" = yes && test $opsys != darwin; then
4033 # These tell us which Kerberos-related libraries to use.
4040 if test "${with_kerberos}" != no; then
4042 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4043 if test $have_com_err = yes; then
4044 COM_ERRLIB=-lcom_err
4045 LIBS="$COM_ERRLIB $LIBS"
4047 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4048 if test $have_crypto = yes; then
4050 LIBS="$CRYPTOLIB $LIBS"
4052 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4053 if test $have_k5crypto = yes; then
4054 CRYPTOLIB=-lk5crypto
4055 LIBS="$CRYPTOLIB $LIBS"
4057 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4058 if test $have_krb5=yes; then
4060 LIBS="$KRB5LIB $LIBS"
4062 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4063 if test "${with_kerberos5}" = no; then
4064 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4065 if test $have_des425 = yes; then
4067 LIBS="$DESLIB $LIBS"
4069 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4070 if test $have_des = yes; then
4072 LIBS="$DESLIB $LIBS"
4075 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4076 if test $have_krb4 = yes; then
4078 LIBS="$KRB4LIB $LIBS"
4080 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4081 if test $have_krb = yes; then
4083 LIBS="$KRB4LIB $LIBS"
4088 if test "${with_kerberos5}" != no; then
4089 AC_CHECK_HEADERS(krb5.h,
4090 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4091 [#include <krb5.h>])])
4093 AC_CHECK_HEADERS(krb.h,,
4094 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4095 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4097 AC_CHECK_HEADERS(com_err.h)
4101 AC_SUBST(COM_ERRLIB)
4107 AC_CHECK_HEADERS(valgrind/valgrind.h)
4109 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4111 AC_CHECK_FUNCS_ONCE(tzset)
4114 AC_CHECK_FUNC(socket, , ok_so_far=no)
4115 if test $ok_so_far = yes; then
4116 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4118 if test $ok_so_far = yes; then
4119 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4121 if test $ok_so_far = yes; then
4122 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4123 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4124 [Define to 1 if you have inet sockets.])
4129 AC_CHECK_FUNCS(snprintf)
4131 dnl Check for glib. This differs from other library checks in that
4132 dnl Emacs need not link to glib unless some other library is already
4133 dnl linking to glib. Although glib provides no facilities that Emacs
4134 dnl needs for its own purposes, when glib is present Emacs needs to
4135 dnl use primitives like g_main_context_query to avoid clashing with
4136 dnl glib at a low level.
4138 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4142 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4143 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4144 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4145 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4146 AC_MSG_CHECKING([whether GLib is linked in])
4147 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4150 [[g_print ("Hello world");]])],
4153 AC_MSG_RESULT([$links_glib])
4154 if test "${links_glib}" = "yes"; then
4155 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4156 if test "$HAVE_NS" = no;then
4164 dnl Adapted from Haible's version.
4165 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4166 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4167 [[char* cs = nl_langinfo(CODESET);]])],
4168 emacs_cv_langinfo_codeset=yes,
4169 emacs_cv_langinfo_codeset=no)
4171 if test $emacs_cv_langinfo_codeset = yes; then
4172 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4173 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4178 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4179 dnl how the tty code is related to POSIX and/or other versions of termios.
4180 dnl The following looks like a useful start.
4182 dnl AC_SYS_POSIX_TERMIOS
4183 dnl if test $ac_cv_sys_posix_termios = yes; then
4184 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4185 dnl and macros for terminal control.])
4186 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4189 dnl Turned on June 1996 supposing nobody will mind it.
4190 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4191 if test "${opsys}" != "mingw32"; then
4192 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4193 in the full name stands for the login id.])
4196 dnl Everybody supports this, except MS.
4197 dnl Seems like the kind of thing we should be testing for, though.
4198 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4199 if test "${opsys}" != "mingw32"; then
4200 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4203 dnl Everybody supports this, except MS-DOS.
4204 dnl Seems like the kind of thing we should be testing for, though.
4205 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4206 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4207 4.2-compatible sockets.])
4209 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4211 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4212 a null file, or a data sink.])
4213 if test "${opsys}" = "mingw32"; then
4214 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4216 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4219 if test "${opsys}" = "mingw32"; then
4224 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4225 dnl This is for MinGW, and is used in test/Makefile.in.
4226 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4227 dnl decides that a command-line argument to be passed to a MinGW program
4228 dnl is a PATH-style list of directories. But that heuristics plays it
4229 dnl safe, and only does the replacement when it is _absolutely_ sure it
4230 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4231 dnl which breaks in-tree builds. So we do this manually instead.
4232 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4233 dnl be computed as ':' in MSYS Bash.
4236 dnl Everybody supports this, except MS-DOS.
4237 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4239 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4242 AC_DEFINE(DIRECTORY_SEP, ['/'],
4243 [Character that separates directories in a file name.])
4245 if test "${opsys}" = "mingw32"; then
4246 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4247 [Returns true if character is a device separator.])
4249 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4250 [Returns true if character is a directory separator.])
4252 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4253 [Returns true if character is any form of separator.])
4255 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4256 [Returns true if character is a device separator.])
4258 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4259 [Returns true if character is a directory separator.])
4261 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4262 [Returns true if character is any form of separator.])
4265 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4269 dnl Unfortunately without libXmu we cannot support EditRes.
4270 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4271 AC_DEFINE(NO_EDITRES, 1)
4276 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4277 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4278 AC_DEFINE(NO_EDITRES, 1)
4284 irix6-5 | sol2* | unixware )
4285 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4286 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4287 dnl need the constant to dimension an array. So wire in the appropriate
4289 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4293 emacs_broken_SIGIO=no
4296 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4297 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4298 hpux* | irix6-5 | nacl | openbsd | sol2* | unixware )
4299 emacs_broken_SIGIO=yes
4303 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4304 dnl the way this system works, libc functions that return malloced
4305 dnl memory use the libc malloc implementation. Calling xfree or
4306 dnl xrealloc on the results of such functions results in a crash.
4308 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4309 dnl but that does not currently work on this system.
4311 dnl It is possible to completely override the malloc implementation on
4312 dnl AIX, but that involves putting the malloc functions in a shared
4313 dnl library and setting the MALLOCTYPE environment variable to point to
4314 dnl that shared library.
4316 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4317 dnl to avoid a crash just use the Emacs implementation for that function.
4319 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4320 dnl of this file, so that we do not check for get_current_dir_name
4321 dnl on AIX. But that might be fragile if something else ends
4322 dnl up testing for get_current_dir_name as a dependency.
4323 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4324 get_current_dir_name should not be used.])
4328 dnl Circumvent a bug in FreeBSD. In the following sequence of
4329 dnl writes/reads on a PTY, read(2) returns bogus data:
4331 dnl write(2) 1022 bytes
4332 dnl write(2) 954 bytes, get EAGAIN
4333 dnl read(2) 1024 bytes in process_read_output
4334 dnl read(2) 11 bytes in process_read_output
4336 dnl That is, read(2) returns more bytes than have ever been written
4337 dnl successfully. The 1033 bytes read are the 1022 bytes written
4338 dnl successfully after processing (for example with CRs added if the
4339 dnl terminal is set up that way which it is here). The same bytes will
4340 dnl be seen again in a later read(2), without the CRs.
4341 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4342 work around an issue when reading from a PTY.])
4348 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4349 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4354 darwin | dragonfly | freebsd | netbsd | openbsd )
4355 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4356 close a pty to make it a controlling terminal (it is already a
4357 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4361 dnl FIXME Surely we can test for this rather than hard-code it.
4363 netbsd | openbsd) sound_device="/dev/audio" ;;
4364 *) sound_device="/dev/dsp" ;;
4368 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4369 [Name of the default sound device.])
4372 dnl Emacs can read input using SIGIO and buffering characters itself,
4373 dnl or using CBREAK mode and making C-g cause SIGINT.
4374 dnl The choice is controlled by the variable interrupt_input.
4376 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4378 dnl Emacs uses the presence of the USABLE_SIGIO macro
4379 dnl to indicate whether or not signal-driven I/O is possible. It uses
4380 dnl INTERRUPT_INPUT to decide whether to use it by default.
4382 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4383 dnl CBREAK mode has two disadvantages
4384 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4385 dnl I hear that in system V this problem does not exist.
4386 dnl 2) Control-G causes output to be discarded.
4387 dnl I do not know whether this can be fixed in system V.
4389 dnl Another method of doing input is planned but not implemented.
4390 dnl It would have Emacs fork off a separate process
4391 dnl to read the input and send it to the true Emacs process
4394 darwin | gnu-linux | gnu-kfreebsd )
4395 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4400 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4401 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4402 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4403 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4404 dnl taking float or double parameters.
4406 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4407 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4408 file defines 'NeedWidePrototypes' as 'NO'.])
4413 dnl Used in process.c, this must be a loop, even if it only runs once.
4414 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4415 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4416 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4417 dnl trying suffixes 0-16.
4418 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4419 first PTY, if PTYs are supported.])
4420 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4421 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4422 end of a PTY, if non-standard.])
4423 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4424 end of a PTY, if non-standard.])
4428 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4429 dnl You allocate a pty by opening /dev/ptc to get the master side.
4430 dnl To get the name of the slave side, you just ttyname() the master side.
4431 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4432 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4436 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4437 dnl multi-line AC_DEFINEs are hard. :(
4438 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)])
4439 AC_DEFINE(PTY_NAME_SPRINTF, [])
4440 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4444 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4447 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4449 if test "x$ac_cv_func_grantpt" = xyes; then
4450 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4451 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4452 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4453 dnl to prevent sigchld_handler from intercepting the child's death.
4454 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); }])
4455 dnl if HAVE_POSIX_OPENPT
4456 if test "x$ac_cv_func_posix_openpt" = xyes; then
4457 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4458 AC_DEFINE(PTY_NAME_SPRINTF, [])
4460 elif test "x$ac_cv_func_getpt" = xyes; then
4461 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4462 AC_DEFINE(PTY_NAME_SPRINTF, [])
4464 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4467 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4472 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4473 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4474 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4478 dnl It looks like this cannot be right, because it is not a loop.
4479 dnl However, process.c actually does this:
4485 dnl which presumably makes it OK, since irix == sgi (?).
4486 dnl FIXME it seems like this special treatment is unnecessary?
4487 dnl Why can't irix use a single-trip loop like eg cygwin?
4488 AC_DEFINE(PTY_ITERATION, [])
4489 dnl Not used, because PTY_ITERATION is defined.
4490 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4491 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); }])
4492 dnl No need to get the pty name at all.
4493 AC_DEFINE(PTY_NAME_SPRINTF, [])
4494 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4495 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4499 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4500 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4501 dnl from intercepting that death. If any child but grantpt's should die
4502 dnl within, it should be caught after sigrelse(2).
4503 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4504 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); }])
4508 dnl Comments are as per sol2*.
4509 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4510 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); }])
4517 dnl This change means that we don't loop through allocate_pty too
4518 dnl many times in the (rare) event of a failure.
4519 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4520 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4521 dnl Push various streams modules onto a PTY channel. Used in process.c.
4522 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.])
4527 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4528 "typing" a signal character on the pty.])
4531 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4532 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4533 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4534 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4537 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4538 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4539 gnu-linux | gnu-kfreebsd )
4541 AC_MSG_CHECKING([for signals via characters])
4542 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4543 #include <linux/version.h>
4544 #if LINUX_VERSION_CODE < 0x20400
4545 # error "Linux version too old"
4547 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4549 AC_MSG_RESULT([$emacs_signals_via_chars])
4550 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4555 AH_TEMPLATE(TAB3, [Undocumented.])
4558 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4560 gnu | dragonfly | freebsd | netbsd | openbsd )
4561 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4562 AC_DEFINE(TAB3, OXTABS)
4565 gnu-linux | gnu-kfreebsd )
4566 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4570 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4571 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4572 [Mark a secondary stack, like the register stack on the ia64.]), [])
4576 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4577 run_time_remap; for HPUX.])
4582 dnl This won't be used automatically yet. We also need to know, at least,
4583 dnl that the stack is continuous.
4584 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4585 registers relevant for conservative garbage collection in the jmp_buf.])
4589 dnl Not all the architectures are tested, but there are Debian packages
4590 dnl for SCM and/or Guile on them, so the technique must work. See also
4591 dnl comments in alloc.c concerning setjmp and gcc.
4592 dnl Fixme: it's probably safe to just use the GCC conditional below.
4593 gnu-linux | gnu-kfreebsd )
4594 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4595 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4596 || defined __alpha__ || defined __mips__ || defined __s390__ \
4597 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4598 || defined __ia64__ || defined __sh__
4601 # error "setjmp not known to work on this arch"
4603 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4608 if test x$GCC = xyes; then
4609 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4610 AC_DEFINE(GC_SETJMP_WORKS, 1)
4613 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4614 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4615 AC_DEFINE(GC_SETJMP_WORKS, 1)
4620 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4621 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4624 [[#include <setjmp.h>
4626 # define _longjmp longjmp
4631 _longjmp (j, 1);]])],
4632 [emacs_cv_func__setjmp=yes],
4633 [emacs_cv_func__setjmp=no])])
4634 if test $emacs_cv_func__setjmp = yes; then
4635 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4638 # We need to preserve signal mask to handle C stack overflows.
4639 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4642 [[#include <setjmp.h>
4645 if (! sigsetjmp (j, 1))
4646 siglongjmp (j, 1);]])],
4647 [emacs_cv_func_sigsetjmp=yes],
4648 [emacs_cv_func_sigsetjmp=no])])
4649 if test $emacs_cv_func_sigsetjmp = yes; then
4650 AC_DEFINE([HAVE_SIGSETJMP], 1,
4651 [Define to 1 if sigsetjmp and siglongjmp work.])
4654 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4655 yes,yes,* | *,*,mingw32)
4656 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4657 [Define to 1 if C stack overflow can be handled in some cases.]);;
4662 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4663 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4664 dnl and this is all we need.
4665 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4672 dnl Used in xfaces.c.
4673 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4674 some systems, where it requires time.h.])
4679 dnl Define symbols to identify the version of Unix this is.
4680 dnl Define all the symbols that apply correctly.
4681 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4682 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4683 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4684 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4689 dnl This symbol should be defined on AIX Version 3 ???????
4690 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4692 # error "_AIX not defined"
4694 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4698 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4702 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4703 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4704 dnl distinguish OS X from pure Darwin.
4705 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4708 gnu-linux | gnu-kfreebsd )
4710 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4715 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4720 AC_DEFINE(USG5_4, [])
4721 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4725 AC_DEFINE(DOS_NT, [])
4726 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4727 if test "x$ac_enable_checking" != "x" ; then
4728 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4734 AC_DEFINE(USG5_4, [])
4735 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4740 AC_DEFINE(USG5_4, [])
4744 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4747 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4748 emacs_cv_usable_FIONREAD=no
4752 emacs_cv_usable_FIONREAD=yes
4757 [AC_LANG_PROGRAM([[#include <sys/types.h>
4758 #include <sys/ioctl.h>
4760 # include <sys/filio.h>
4763 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4764 [emacs_cv_usable_FIONREAD=yes],
4765 [emacs_cv_usable_FIONREAD=no])
4768 if test $emacs_cv_usable_FIONREAD = yes; then
4769 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4771 if test $emacs_broken_SIGIO = no; then
4772 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4774 [AC_LANG_PROGRAM([[#include <fcntl.h>
4777 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4778 [emacs_cv_usable_SIGIO=yes],
4779 [emacs_cv_usable_SIGIO=no])],
4780 [emacs_cv_usable_SIGIO=yes],
4781 [emacs_cv_usable_SIGIO=no])
4782 if test $emacs_cv_usable_SIGIO = yes; then
4783 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4790 dnl It works to open the pty's tty in the parent (Emacs), then
4791 dnl close and reopen it in the child.
4792 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4793 works to open a pty's tty in the parent process, then close and
4794 reopen it in the child.])
4798 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4799 use VSUSP instead of VSWTCH.])
4803 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4808 # Set up the CFLAGS for real compilation, so we can substitute it.
4809 CFLAGS="$REAL_CFLAGS"
4810 CPPFLAGS="$REAL_CPPFLAGS"
4813 ## Hack to detect a buggy GCC version.
4814 if test "$GCC" = yes && \
4815 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4817 *-fno-optimize-sibling-calls*) ;;
4819 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4823 version=$PACKAGE_VERSION
4825 copyright="Copyright (C) 2016 Free Software Foundation, Inc."
4826 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4827 [Short copyright string for this version of Emacs.])
4830 ### Specify what sort of things we'll be editing into Makefile and config.h.
4831 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4833 AC_SUBST(configuration)
4838 AC_SUBST(exec_prefix)
4841 AC_SUBST(sharedstatedir)
4842 AC_SUBST(libexecdir)
4846 AC_SUBST(standardlisppath)
4847 AC_SUBST(locallisppath)
4849 AC_SUBST(x_default_search_path)
4851 AC_SUBST(archlibdir)
4857 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4858 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4859 ## end of LIBX_BASE, but nothing ever set it.
4860 AC_SUBST(LD_SWITCH_X_SITE)
4861 AC_SUBST(C_SWITCH_X_SITE)
4862 AC_SUBST(GNUSTEP_CFLAGS)
4864 ## Used in lwlib/Makefile.in.
4865 AC_SUBST(X_TOOLKIT_TYPE)
4867 AC_SUBST(ns_appbindir)
4868 AC_SUBST(ns_appresdir)
4870 AC_SUBST(GNU_OBJC_CFLAGS)
4871 AC_SUBST(OTHER_FILES)
4873 if test -n "${term_header}"; then
4874 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4875 [Define to the header for the built-in window system.])
4878 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4879 [Define to the canonical Emacs configuration name.])
4880 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4881 [Define to the options passed to configure.])
4882 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4883 define this to include extra configuration information.])
4887 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4894 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4895 AC_DEFINE(HAVE_X_WINDOWS, 1,
4896 [Define to 1 if you want to use the X window system.])
4898 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4900 if test "$USE_CAIRO" = "yes"; then
4901 FONT_OBJ="ftfont.o ftcrfont.o"
4902 elif test "$HAVE_XFT" = "yes"; then
4903 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4904 elif test "$HAVE_FREETYPE" = "yes"; then
4905 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4915 if test "${USE_X_TOOLKIT}" != "none" ; then
4917 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4918 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4919 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4920 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4921 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4925 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4926 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4930 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4931 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4932 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4936 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4937 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4940 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4943 AC_SUBST(WIDGET_OBJ)
4946 case "$USE_X_TOOLKIT" in
4947 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4948 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4949 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4951 AC_SUBST(TOOLKIT_LIBW)
4953 if test "${opsys}" != "mingw32"; then
4954 if test "$USE_X_TOOLKIT" = "none"; then
4955 LIBXT_OTHER="\$(LIBXSM)"
4957 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4960 AC_SUBST(LIBXT_OTHER)
4962 if test "${HAVE_X11}" = "yes" ; then
4963 AC_DEFINE(HAVE_X11, 1,
4964 [Define to 1 if you want to use version 11 of X windows.])
4965 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4969 AC_SUBST(LIBX_OTHER)
4971 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4973 elif test "$USE_X_TOOLKIT" = none; then
4974 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4976 LIBXMENU='$(lwlibdir)/liblw.a'
4980 AC_CACHE_CHECK([for struct alignment],
4981 [emacs_cv_struct_alignment],
4983 [AC_LANG_PROGRAM([[#include <stddef.h>
4984 struct __attribute__ ((aligned (8))) s { char c; };
4985 struct t { char c; struct s s; };
4986 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
4988 [emacs_cv_struct_alignment=yes],
4989 [emacs_cv_struct_alignment=no])])
4990 if test "$emacs_cv_struct_alignment" = yes; then
4991 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
4992 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
4993 structure to an N-byte boundary.])
4996 if test "${GNU_MALLOC}" = "yes" ; then
4997 AC_DEFINE(GNU_MALLOC, 1,
4998 [Define to 1 if you want to use the GNU memory allocator.])
5002 if test "${REL_ALLOC}" = "yes" ; then
5003 AC_DEFINE(REL_ALLOC, 1,
5004 [Define REL_ALLOC if you want to use the relocating allocator for
5007 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5009 AC_SUBST(RALLOC_OBJ)
5011 if test "$opsys" = "cygwin"; then
5012 CYGWIN_OBJ="sheap.o cygw32.o"
5013 ## Cygwin differs because of its unexec().
5015 POST_ALLOC_OBJ=lastfile.o
5016 elif test "$opsys" = "mingw32"; then
5019 POST_ALLOC_OBJ=lastfile.o
5022 PRE_ALLOC_OBJ=lastfile.o
5025 AC_SUBST(CYGWIN_OBJ)
5026 AC_SUBST(PRE_ALLOC_OBJ)
5027 AC_SUBST(POST_ALLOC_OBJ)
5029 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5030 dnl verbatim defined above. The tricky name is apropos, as this hack
5031 dnl makes Fortify go sour!
5032 AH_VERBATIM([FORTIFY_SOUR],
5033 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5034 The workaround disables some useful run-time checking, so it
5035 should be conditional to the platforms with the performance bug.
5036 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5037 #if defined __APPLE__ && defined __GNUC__
5038 # ifndef _DONT_USE_CTYPE_INLINE_
5039 # define _DONT_USE_CTYPE_INLINE_
5041 # ifndef _FORTIFY_SOURCE
5042 # define _FORTIFY_SOURCE 0
5047 # If user asks to omit features, disable optional features that gnulib
5048 # might otherwise enable.
5049 if test "$with_features" = no && test "$enable_acl" != yes; then
5053 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5054 # it temporarily reverts them to their pre-pkg-config values,
5055 # because gnulib needs to work with both src (which uses the
5056 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5057 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5058 # and it therefore needs to run in an environment where LIBS does not
5059 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5060 # for some package unrelated to lib-src.
5063 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5064 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5065 gl_ASSERT_NO_GNULIB_POSIXCHECK
5066 gl_ASSERT_NO_GNULIB_TESTS
5071 if test "${opsys}" = "mingw32"; then
5072 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5073 # Remove unneeded switches from the value of CC that goes to Makefiles
5074 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5078 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5080 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5083 ## The -headerpad option tells ld (see man page) to leave room at the
5084 ## end of the header for adding load commands. Needed for dumping.
5085 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5086 ## architecture (where they are 78 bytes each). The actual number of
5087 ## load commands added is not consistent but normally ranges from
5088 ## about 14 to about 34. Setting it high gets us plenty of slop and
5089 ## only costs about 1.5K of wasted binary space.
5090 headerpad_extra=1000
5091 if test "$HAVE_NS" = "yes"; then
5092 libs_nsgui="-framework AppKit"
5093 if test "$NS_IMPL_COCOA" = "yes"; then
5094 libs_nsgui="$libs_nsgui -framework IOKit"
5099 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5101 ## This is here because src/Makefile.in did some extra fiddling around
5102 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5103 ## LD_SWITCH_SYSTEM_TEMACS instead,
5104 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5105 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5108 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5109 ## find X at run-time.
5110 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5111 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5112 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5113 ## had different values in configure (in ac_link) and src/Makefile.in.
5114 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5115 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5118 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5119 case "$canonical" in
5120 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5121 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5125 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5128 # -nopie fixes a temacs segfault on Gentoo, OpenBSD, and other systems
5129 # with "hardened" GCC configurations for some reason (Bug#18784).
5130 # We don't know why -nopie works, but not segfaulting is better than
5131 # segfaulting. Use ac_c_werror_flag=yes when trying -nopie, otherwise
5132 # clang keeps warning that it does not understand -nopie, and pre-4.6
5133 # GCC has a similar problem (Bug#20338).
5134 AC_CACHE_CHECK([whether $CC accepts -nopie],
5135 [emacs_cv_prog_cc_nopie],
5136 [emacs_save_c_werror_flag=$ac_c_werror_flag
5137 emacs_save_LDFLAGS=$LDFLAGS
5138 ac_c_werror_flag=yes
5139 LDFLAGS="$LDFLAGS -nopie"
5140 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
5141 [emacs_cv_prog_cc_nopie=yes],
5142 [emacs_cv_prog_cc_nopie=no])
5143 ac_c_werror_flag=$emacs_save_c_werror_flag
5144 LDFLAGS=$emacs_save_LDFLAGS])
5145 if test "$emacs_cv_prog_cc_nopie" = yes; then
5146 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie"
5149 if test x$ac_enable_profiling != x ; then
5151 *freebsd | gnu-linux) ;;
5152 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5156 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5158 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5160 ## Common for all window systems
5161 if test "$window_system" != "none"; then
5162 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5163 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5164 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5167 AC_SUBST(WINDOW_SYSTEM_OBJ)
5169 AH_TOP([/* GNU Emacs site configuration template file.
5171 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2016
5172 Free Software Foundation, Inc.
5174 This file is part of GNU Emacs.
5176 GNU Emacs is free software: you can redistribute it and/or modify
5177 it under the terms of the GNU General Public License as published by
5178 the Free Software Foundation, either version 3 of the License, or
5179 (at your option) any later version.
5181 GNU Emacs is distributed in the hope that it will be useful,
5182 but WITHOUT ANY WARRANTY; without even the implied warranty of
5183 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5184 GNU General Public License for more details.
5186 You should have received a copy of the GNU General Public License
5187 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5190 /* No code in Emacs #includes config.h twice, but some bits of code
5191 intended to work with other packages as well (like gmalloc.c)
5192 think they can include it as many times as they like. */
5193 #ifndef EMACS_CONFIG_H
5194 #define EMACS_CONFIG_H
5197 AH_BOTTOM([#include <conf_post.h>
5199 #endif /* EMACS_CONFIG_H */
5208 #### Report on what we decided to do.
5209 #### Report GTK as a toolkit, even if it doesn't use Xt.
5210 #### It makes printing result more understandable as using GTK sets
5211 #### toolkit_scroll_bars to yes by default.
5212 if test "${HAVE_GTK}" = "yes"; then
5213 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5216 if test $USE_ACL -ne 0; then
5217 ACL_SUMMARY="yes $LIB_ACL"
5222 emacs_standard_dirs='Standard dirs'
5224 Configured for '${canonical}'.
5226 Where should the build process find the source code? ${srcdir}
5227 What compiler should emacs be built with? ${CC} ${CFLAGS}
5228 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5229 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5230 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5231 What window system should Emacs use? ${window_system}
5232 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5233 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5234 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5237 emacs_config_features=
5238 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5239 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5240 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES; do
5243 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5244 CAIRO|TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5245 *) eval val=\${HAVE_$opt} ;;
5248 xno|xnone|x) continue ;;
5253 GTK*|LUCID|MOTIF) opt=$val ;;
5258 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5261 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5262 [Summary of some of the main features enabled by configure.])
5264 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5265 Does Emacs use -lXpm? ${HAVE_XPM}
5266 Does Emacs use -ljpeg? ${HAVE_JPEG}
5267 Does Emacs use -ltiff? ${HAVE_TIFF}
5268 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5269 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5270 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5271 Does Emacs use cairo? ${USE_CAIRO}
5272 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5273 Does Emacs support sound? ${HAVE_SOUND}
5274 Does Emacs use -lgpm? ${HAVE_GPM}
5275 Does Emacs use -ldbus? ${HAVE_DBUS}
5276 Does Emacs use -lgconf? ${HAVE_GCONF}
5277 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5278 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5279 Does Emacs use access control lists? ${ACL_SUMMARY}
5280 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5281 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5282 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5283 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5284 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5285 Does Emacs use -lotf? ${HAVE_LIBOTF}
5286 Does Emacs use -lxft? ${HAVE_XFT}
5287 Does Emacs directly use zlib? ${HAVE_ZLIB}
5288 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5289 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5292 if test -n "${EMACSDATA}"; then
5293 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5295 if test -n "${EMACSDOC}"; then
5296 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5301 if test "$HAVE_NS" = "yes"; then
5303 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5304 The installed application will go to nextstep/Emacs.app and can be
5305 run or moved from there."])
5306 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5307 echo "The application will be fully self-contained."
5309 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5310 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5311 to run if these resources are not installed."])
5316 if test "${opsys}" = "cygwin"; then
5318 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5324 # Remove any trailing slashes in these variables.
5326 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5328 case $exec_prefix in
5329 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5332 if test "$HAVE_NS" = "yes"; then
5333 if test "$NS_IMPL_GNUSTEP" = yes; then
5334 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5335 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5336 ns_check_file=Resources/Info-gnustep.plist
5338 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5339 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5340 ns_check_file=Contents/Info.plist
5342 AC_SUBST(ns_check_file)
5345 dnl config.status treats $srcdir specially, so I think this is ok...
5346 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5348 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5349 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5350 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5351 dnl (else you get "no 'Makefile.am' found for any configure output").
5352 dnl This will work, but you get a config.status that is not quite right
5353 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5354 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5355 dnl it seems better to just live with the duplication.
5356 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5358 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5359 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5360 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5361 leim/Makefile nextstep/Makefile nt/Makefile])
5363 dnl test/ is not present in release tarfiles.
5364 opt_makefile=test/Makefile
5366 if test -f "$srcdir/$opt_makefile.in"; then
5367 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5368 dnl Again, it's best not to use a variable. Though you can add
5369 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5370 AC_CONFIG_FILES([test/Makefile])
5374 dnl The admin/ directory used to be excluded from tarfiles.
5375 if test -d $srcdir/admin; then
5376 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5377 AC_CONFIG_FILES([admin/charsets/Makefile])
5378 AC_CONFIG_FILES([admin/unidata/Makefile])
5379 AC_CONFIG_FILES([admin/grammars/Makefile])
5383 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5385 AC_SUBST(SUBDIR_MAKEFILES_IN)
5387 dnl You might wonder (I did) why epaths.h is generated by running make,
5388 dnl rather than just letting configure generate it from epaths.in.
5389 dnl One reason is that the various paths are not fully expanded (see above);
5390 dnl eg gamedir=${prefix}/var/games/emacs.
5391 dnl Secondly, the GNU Coding standards require that one should be able
5392 dnl to run 'make prefix=/some/where/else' and override the values set
5393 dnl by configure. This also explains the 'move-if-change' test and
5394 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5395 AC_CONFIG_COMMANDS([src/epaths.h], [
5396 if test "${opsys}" = "mingw32"; then
5397 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5399 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5400 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5401 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5403 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5404 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5406 AC_CONFIG_COMMANDS([src/.gdbinit], [
5407 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5408 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5412 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5413 dnl See comments for etc-refcards-emacsver.tex.
5414 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5415 dnl it is not quite the same. But we are generating in $srcdir.
5416 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5417 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5418 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5421 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5422 dnl then a directory etc/refcards is created in the build directory,
5423 dnl which is probably harmless, but confusing (in out-of-tree builds).
5424 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5425 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5426 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5427 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5428 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5433 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])