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 $ac_configure_args.
36 for opt in "$@" 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 (experimental)])
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 OPTION_DEFAULT_OFF([xwidgets],
378 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
380 ## For the times when you want to build Emacs but don't have
381 ## a suitable makeinfo, and can live without the manuals.
382 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
383 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
385 ## This might be a 'configure' arg.
386 AC_SUBST([ACLOCAL_PATH])
388 ## Makefile.in needs the cache file name.
391 ## This is an option because I do not know if all info/man support
392 ## compressed files, nor how to test if they do so.
393 OPTION_DEFAULT_ON([compress-install],
394 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
395 make GZIP_PROG= install])
397 AC_ARG_WITH(gameuser,dnl
398 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
399 [user for shared game score files.
400 An argument prefixed by ':' specifies a group instead.])])
403 # We don't test if we can actually chown/chgrp here, because configure
404 # may run without root privileges. lib-src/Makefile.in will handle
405 # any errors due to missing user/group gracefully.
406 case ${with_gameuser} in
408 "" | yes) gamegroup=games ;;
409 :*) gamegroup=${with_gameuser#:} ;;
410 *) gameuser=${with_gameuser} ;;
413 AC_ARG_WITH([gnustep-conf],dnl
414 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
415 [name of GNUstep configuration file to use on systems where the command
416 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
417 /etc/GNUstep/GNUstep.conf])])
418 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
419 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
420 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
421 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
423 AC_ARG_ENABLE(ns-self-contained,
424 [AS_HELP_STRING([--disable-ns-self-contained],
425 [disable self contained build under NeXTstep])],
426 EN_NS_SELF_CONTAINED=$enableval,
427 EN_NS_SELF_CONTAINED=yes)
430 AC_ARG_ENABLE(locallisppath,
431 [AS_HELP_STRING([--enable-locallisppath=PATH],
432 [directories Emacs should search for lisp files specific
434 if test "${enableval}" = "no"; then
436 elif test "${enableval}" != "yes"; then
437 locallisppath=${enableval} locallisppathset=yes
440 AC_ARG_ENABLE(checking,
441 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
442 [enable expensive run-time checks. With LIST,
443 enable only specific categories of checks.
444 Categories are: all,yes,no.
445 Flags are: stringbytes, stringoverrun, stringfreelist,
446 xmallocoverrun, conslist, glyphs])],
447 [ac_checking_flags="${enableval}"],[])
448 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
449 for check in $ac_checking_flags
452 # these set all the flags to specific states
453 yes) ac_enable_checking=1 ;;
454 no) ac_enable_checking= ;
455 ac_gc_check_stringbytes= ;
456 ac_gc_check_string_overrun= ;
457 ac_gc_check_string_free_list= ;
458 ac_xmalloc_overrun= ;
459 ac_gc_check_cons_list= ;
461 all) ac_enable_checking=1 ;
462 ac_gc_check_stringbytes=1 ;
463 ac_gc_check_string_overrun=1 ;
464 ac_gc_check_string_free_list=1 ;
465 ac_xmalloc_overrun=1 ;
466 ac_gc_check_cons_list=1 ;
468 # these enable particular checks
469 stringbytes) ac_gc_check_stringbytes=1 ;;
470 stringoverrun) ac_gc_check_string_overrun=1 ;;
471 stringfreelist) ac_gc_check_string_free_list=1 ;;
472 xmallocoverrun) ac_xmalloc_overrun=1 ;;
473 conslist) ac_gc_check_cons_list=1 ;;
474 glyphs) ac_glyphs_debug=1 ;;
475 *) AC_MSG_ERROR(unknown check category $check) ;;
480 if test x$ac_enable_checking != x ; then
481 AC_DEFINE(ENABLE_CHECKING, 1,
482 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
484 if test x$ac_gc_check_stringbytes != x ; then
485 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
486 [Define this temporarily to hunt a bug. If defined, the size of
487 strings is redundantly recorded in sdata structures so that it can
488 be compared to the sizes recorded in Lisp strings.])
490 if test x$ac_gc_check_string_overrun != x ; then
491 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
492 [Define this to check for short string overrun.])
494 if test x$ac_gc_check_string_free_list != x ; then
495 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
496 [Define this to check the string free list.])
498 if test x$ac_xmalloc_overrun != x ; then
499 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
500 [Define this to check for malloc buffer overrun.])
502 if test x$ac_gc_check_cons_list != x ; then
503 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
504 [Define this to check for errors in cons list.])
506 if test x$ac_glyphs_debug != x ; then
507 AC_DEFINE(GLYPH_DEBUG, 1,
508 [Define this to enable glyphs debugging code.])
511 AC_ARG_ENABLE(check-lisp-object-type,
512 [AS_HELP_STRING([--enable-check-lisp-object-type],
513 [enable compile time checks for the Lisp_Object data type.
514 This is useful for development for catching certain types of bugs.])],
515 if test "${enableval}" != "no"; then
516 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
517 [Define this to enable compile time checks for the Lisp_Object data type.])
521 dnl The name of this option is unfortunate. It predates, and has no
522 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
523 dnl Actually, it stops it working.
524 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
525 AC_ARG_ENABLE(profiling,
526 [AS_HELP_STRING([--enable-profiling],
527 [build emacs with low-level, gprof profiling support.
528 Mainly useful for debugging Emacs itself. May not work on
529 all platforms. Stops profiler.el working.])],
530 [ac_enable_profiling="${enableval}"],[])
531 if test x$ac_enable_profiling != x ; then
532 PROFILING_CFLAGS="-DPROFILING=1 -pg"
536 AC_SUBST(PROFILING_CFLAGS)
538 AC_ARG_ENABLE(autodepend,
539 [AS_HELP_STRING([--enable-autodepend],
540 [automatically generate dependencies to .h-files.
541 Requires gcc, enabled if found.])],
542 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
544 AC_ARG_ENABLE(gtk-deprecation-warnings,
545 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
546 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
547 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
549 dnl This used to use changequote, but, apart from 'changequote is evil'
550 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
551 dnl the great gob of text. Thus it's not processed for possible expansion.
552 dnl Just make sure the brackets remain balanced.
554 dnl Since Emacs can't find matching pairs of quotes, boundaries are
555 dnl indicated by comments.
559 ### If you add support for a new configuration, add code to this
560 ### switch statement to recognize your configuration name and select
561 ### the appropriate opsys.
563 ### As far as handling version numbers on operating systems is
564 ### concerned, make sure things will fail in a fixable way. If
565 ### /etc/MACHINES doesn't say anything about version numbers, be
566 ### prepared to handle anything reasonably. If version numbers
567 ### matter, be sure /etc/MACHINES says something about it.
570 case "${canonical}" in
572 ## GNU/Linux and similar ports
587 ## FreeBSD kernel + glibc based userland
598 *-*-openbsd* | *-*-mirbsd* )
602 ## Apple Darwin / Mac OS X
604 case "${canonical}" in
605 *-apple-darwin[0-9].*) unported=yes ;;
606 i[3456]86-* | x86_64-* ) ;;
610 ## Use fink packages if available.
611 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
612 ## if test -d /sw/include && test -d /sw/lib; then
613 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
614 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
618 ## Chromium Native Client
628 ## HP 9000 series 700 and 800, running HP/UX
632 hppa*-hp-hpux1[1-9]* )
634 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
638 rs6000-ibm-aix4.[23]* )
641 powerpc-ibm-aix4.[23]* )
644 rs6000-ibm-aix[56]* )
647 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
651 ## Silicon Graphics machines
655 # Without defining _LANGUAGE_C, things get masked out in the headers
656 # so that, for instance, grepping for 'free' in stdlib.h fails and
657 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
658 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
663 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
664 | x86_64-*-solaris2* | x86_64-*-sunos5*)
665 case "${canonical}" in
667 amd64-*-*|x86_64-*-*) ;;
671 case "${canonical}" in
672 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
674 emacs_check_sunpro_c=yes
676 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
677 ## Note that Emacs 23.1's NEWS said the following would be dropped.
678 *-sunos5.6* | *-solaris2.6* )
682 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
683 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
685 emacs_check_sunpro_c=yes
688 ## Watch out for a compiler that we know will not work.
689 case "${canonical}" in
690 *-solaris* | *-sunos5* )
691 if [ "x$CC" = x/usr/ucb/cc ]; then
692 ## /usr/ucb/cc doesn't work;
693 ## we should find some other compiler that does work.
701 ## Intel 386 machines where we don't care about the manufacturer.
703 case "${canonical}" in
704 *-darwin* ) opsys=darwin ;;
707 # MinGW overrides and adds some system headers in nt/inc.
708 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
710 *-sysv4.2uw* ) opsys=unixware ;;
711 *-sysv5uw* ) opsys=unixware ;;
712 *-sysv5OpenUNIX* ) opsys=unixware ;;
713 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
719 case "${canonical}" in
722 # MinGW overrides and adds some system headers in nt/inc.
723 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
725 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
734 ### If the code above didn't choose an operating system, just choose
735 ### an operating system based on the configuration name. You really
736 ### only want to use this when you have no idea what the right
737 ### operating system is; if you know what operating systems a machine
738 ### runs, it's cleaner to make it explicit in the case statement
740 if test x"${opsys}" = x; then
741 case "${canonical}" in
742 *-gnu* ) opsys=gnu ;;
752 if test $unported = yes; then
753 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
754 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
755 Check 'etc/MACHINES' for recognized configuration names.])
758 #### Choose a compiler.
760 dnl Don't bother to test for C89.
761 AC_DEFUN([_AC_PROG_CC_C89], [$2])
763 dnl Sets GCC=yes if using gcc.
764 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
765 if test -n "$XCRUN"; then
766 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
767 test -n "$AR" && export AR
770 dnl Emacs needs C99 or later.
775 if test x$GCC = xyes; then
776 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
778 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
781 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
782 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
783 dnl that clash with MinGW.
784 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
786 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
787 AC_DEFUN([gl_CRYPTO_CHECK])
788 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
789 # as we don't use them.
790 AC_DEFUN([gl_FCNTL_O_FLAGS])
791 # Avoid gnulib's test for pthread_sigmask.
793 for func in $ac_func_list; do
794 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
797 # Use the system putenv even if it lacks GNU features, as we don't need them,
798 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
799 AC_CHECK_FUNCS_ONCE([putenv])
800 AC_DEFUN([gl_FUNC_PUTENV],
801 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
803 # Initialize gnulib right after choosing the compiler.
804 dnl Amongst other things, this sets AR and ARFLAGS.
807 if test "$ac_test_CFLAGS" != set; then
808 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
809 # if -g3 works and the user does not specify CFLAGS.
810 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
813 emacs_g3_CFLAGS='-g3';;
815 emacs_g3_CFLAGS='-g3 -O2';;
819 if test -n "$emacs_g3_CFLAGS"; then
820 emacs_save_CFLAGS=$CFLAGS
821 CFLAGS=$emacs_g3_CFLAGS
822 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
823 [emacs_cv_prog_cc_g3],
824 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
825 [emacs_cv_prog_cc_g3=yes],
826 [emacs_cv_prog_cc_g3=no])])
827 if test $emacs_cv_prog_cc_g3 != yes; then
828 CFLAGS=$emacs_save_CFLAGS
830 if test $opsys = mingw32; then
831 CFLAGS="$CFLAGS -gdwarf-2"
838 # No optimization flag was inferred for this non-GCC compiler.
839 # Try -O. This is needed for xlc on AIX; see Bug#14258.
840 emacs_save_CFLAGS=$CFLAGS
841 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
843 AC_CACHE_CHECK([whether $CC accepts -O],
844 [emacs_cv_prog_cc_o],
845 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
846 [emacs_cv_prog_cc_o=yes],
847 [emacs_cv_prog_cc_o=no])])
848 if test $emacs_cv_prog_cc_o != yes; then
849 CFLAGS=$emacs_save_CFLAGS
854 AC_ARG_ENABLE([gcc-warnings],
855 [AS_HELP_STRING([--enable-gcc-warnings],
856 [turn on lots of GCC warnings/errors. This is intended for
857 developers, and may generate false alarms when used
858 with older or non-GNU development tools.])],
861 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
863 gl_gcc_warnings=$enableval],
867 # clang is unduly picky about some things.
868 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
875 [emacs_cv_clang=yes],
876 [emacs_cv_clang=no])])
878 # When compiling with GCC, prefer -isystem to -I when including system
879 # include files, to avoid generating useless diagnostics for the files.
880 if test "$gl_gcc_warnings" != yes; then
882 if test "$emacs_cv_clang" = yes
884 # Turn off some warnings if supported.
885 gl_WARN_ADD([-Wno-switch])
886 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
887 gl_WARN_ADD([-Wno-pointer-sign])
888 gl_WARN_ADD([-Wno-string-plus-int])
889 gl_WARN_ADD([-Wno-unknown-attributes])
894 # This, $nw, is the list of warnings we disable.
897 case $with_x_toolkit in
898 lucid | athena | motif)
899 # Old toolkits mishandle 'const'.
900 nw="$nw -Wwrite-strings"
903 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
906 AC_SUBST([WERROR_CFLAGS])
908 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
909 nw="$nw -Woverlength-strings" # Not a problem these days
910 nw="$nw -Wformat-nonliteral" # we do this a lot
911 nw="$nw -Wvla" # Emacs uses <vla.h>.
912 nw="$nw -Wswitch-default" # Too many warnings for now
913 nw="$nw -Winline" # OK to ignore 'inline'
914 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
915 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
916 # signed overflow has undefined behavior
917 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
918 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
919 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
921 # Emacs doesn't care about shadowing; see
922 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
925 # Emacs's use of alloca inhibits protecting the stack.
926 nw="$nw -Wstack-protector"
928 # Emacs's use of partly-const functions such as Fgnutls_available_p
929 # make this option problematic.
930 nw="$nw -Wsuggest-attribute=const"
932 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
933 # option problematic.
934 nw="$nw -Wsuggest-attribute=pure"
936 # This part is merely for shortening the command line,
937 # since -Wall implies -Wswitch.
940 # This part is merely for shortening the command line,
941 # since -Wno-FOO needs to be added below regardless.
942 nw="$nw -Wmissing-field-initializers"
943 nw="$nw -Wtype-limits"
944 nw="$nw -Wunused-parameter"
946 if test $emacs_cv_clang = yes; then
947 nw="$nw -Wcast-align"
950 gl_MANYWARN_ALL_GCC([ws])
951 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
955 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
956 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
957 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
958 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
959 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
960 gl_WARN_ADD([-Wno-format-nonliteral])
962 # More things that clang is unduly picky about.
963 if test $emacs_cv_clang = yes; then
964 gl_WARN_ADD([-Wno-format-extra-args])
965 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
966 gl_WARN_ADD([-Wno-unused-command-line-argument])
967 gl_WARN_ADD([-Wno-unused-value])
970 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
971 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
972 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
973 [/* Enable compile-time and run-time bounds-checking, and some warnings,
974 without upsetting glibc 2.15+. */
975 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
976 && defined __OPTIMIZE__ && __OPTIMIZE__)
977 # define _FORTIFY_SOURCE 2
981 # We use a slightly smaller set of warning options for lib/.
982 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
984 nw="$nw -Wunused-macros"
986 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
987 AC_SUBST([GNULIB_WARN_CFLAGS])
997 AC_ARG_ENABLE(link-time-optimization,
998 [AS_HELP_STRING([--enable-link-time-optimization],
999 [build emacs with link-time optimization.
1000 This requires GCC 4.5.0 or later, or clang.
1001 (Note that clang support is experimental - see INSTALL.)
1002 It also makes Emacs harder to debug, and when we tried it
1003 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1004 recommended for typical use.])],
1005 if test "${enableval}" != "no"; then
1007 if test $emacs_cv_clang = yes; then
1008 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1009 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1010 if test -x "$GOLD_PLUGIN"; then
1013 elif test x$GCC = xyes; then
1014 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1015 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1016 if test x$CPUS != x; then
1022 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1024 if test -z "$LTO"; then
1028 CFLAGS="$CFLAGS $LTO"
1029 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1030 [ac_lto_supported=yes], [ac_lto_supported=no])
1031 CFLAGS="$old_CFLAGS"
1033 AC_MSG_RESULT([$ac_lto_supported])
1034 if test "$ac_lto_supported" = "yes"; then
1035 CFLAGS="$CFLAGS $LTO"
1036 if test x$emacs_cv_clang = xyes; then
1037 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1038 # WARNING: 'ar --plugin ...' doesn't work without
1039 # command, so plugin name is appended to ARFLAGS.
1040 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1041 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1043 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1044 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1045 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1046 dnl dump core on Fedora 20, so play it safe for now.
1047 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1048 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1053 dnl Prefer silent make output. For verbose output, use
1054 dnl 'configure --disable-silent-rules' or 'make V=1' .
1055 AM_SILENT_RULES([yes])
1056 dnl Port to Automake 1.11.
1057 dnl This section can be removed once we assume Automake 1.14 or later.
1058 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1059 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1061 AM_SUBST_NOTMAKE([AM_V])
1062 AC_SUBST([AM_DEFAULT_V])
1063 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1064 AC_SUBST([AM_DEFAULT_VERBOSITY])
1066 dnl Some other nice autoconf tests.
1067 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1070 dnl if test "x$RANLIB" = x; then
1075 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1076 dnl can be made to directories. This is not relevant for our usage, and
1077 dnl excludes some cases that work fine for us. Eg MS Windows or files
1078 dnl hosted on AFS, both examples where simple links work, but links to
1079 dnl directories fail. We use a cut-down version instead.
1082 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1083 rm -f conf$$ conf$$.file
1085 LN_S_FILEONLY='cp -p'
1087 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1088 dnl random program in the current directory.
1089 if (echo >conf$$.file) 2>/dev/null; then
1090 if ln -s conf$$.file conf$$ 2>/dev/null; then
1091 if test "$opsys" = "mingw32"; then
1092 LN_S_FILEONLY='/bin/ln -s'
1094 LN_S_FILEONLY='ln -s'
1096 elif ln conf$$.file conf$$ 2>/dev/null; then
1097 if test "$opsys" = "mingw32"; then
1098 LN_S_FILEONLY=/bin/ln
1105 rm -f conf$$ conf$$.file
1107 if test "$LN_S_FILEONLY" = "ln -s"; then
1108 AC_MSG_RESULT([yes])
1110 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1113 AC_SUBST(LN_S_FILEONLY)
1116 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1117 dnl doesn't support links to directories, as in "ln file dir". But that
1118 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1119 dnl executables at "make install" time.
1120 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1121 dnl for more details.
1122 if test "$opsys" = "mingw32"; then
1126 dnl On some Debian versions, "install-info" prints irritating messages
1127 dnl "This is not dpkg install-info anymore, but GNU install-info"
1128 dnl if called via an absolute file name.
1129 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1130 dnl Sadly some people may have an old ginstall-info installed on
1131 dnl non-Debian systems, so we can't use this.
1132 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1133 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1135 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1136 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1137 dnl Don't use GZIP, which is used by gzip for additional parameters.
1138 AC_PATH_PROG(GZIP_PROG, gzip)
1140 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1141 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1143 if test $opsys = gnu-linux; then
1144 AC_PATH_PROG(PAXCTL, paxctl,,
1145 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1146 if test "X$PAXCTL" != X; then
1147 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1148 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1149 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1150 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1153 if test "${SETFATTR+set}" != set; then
1154 AC_CACHE_CHECK([for setfattr],
1155 [emacs_cv_prog_setfattr],
1157 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1158 emacs_cv_prog_setfattr=yes
1160 emacs_cv_prog_setfattr=no
1162 if test "$emacs_cv_prog_setfattr" = yes; then
1168 AC_SUBST([SETFATTR])
1172 ## Need makeinfo >= 4.7 (?) to build the manuals.
1173 if test "$MAKEINFO" != "no"; then
1174 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1177 case `($MAKEINFO --version) 2>/dev/null` in
1178 *' (GNU texinfo) '4.[[7-9]]* | \
1179 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1180 *' (GNU texinfo) '[[5-9]]* | \
1181 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1186 ## Makeinfo is unusual. For a released Emacs, the manuals are
1187 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1188 ## therefore in the category of "special tools" not normally required, which
1189 ## configure does not have to check for (eg autoconf itself).
1190 ## In a repository checkout on the other hand, the manuals are not included.
1191 ## So makeinfo is a requirement to build from the repository, and configure
1192 ## should test for it as it does for any other build requirement.
1193 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1194 ## with pre-built manuals, from a repository checkout.
1197 if test "$MAKEINFO" = "no"; then
1199 if test "x${with_makeinfo}" = "xno"; then
1201 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1202 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1203 source tree does not seem to have pre-built manuals in the 'info' directory.
1204 Either install a suitable version of makeinfo, or re-run configure
1205 with the '--without-makeinfo' option to build without the manuals.] )
1208 AC_SUBST(HAVE_MAKEINFO)
1210 if test $opsys = mingw32; then
1211 DOCMISC_W32=efaq-w32
1215 AC_SUBST(DOCMISC_W32)
1217 dnl Add our options to ac_link now, after it is set up.
1219 if test x$GCC = xyes; then
1220 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1221 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1223 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1224 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1227 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1228 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1229 dnl (Don't use '-z nocombreloc' as -z takes no arg on Irix.)
1230 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1231 dnl if not built to support GNU ld.
1233 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1234 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1235 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1236 dnl Eg "make LDFLAGS=... all" could run into problems,
1237 dnl http://bugs.debian.org/684788
1238 dnl * unnecessary, since temacs is the only thing that actually needs it.
1239 dnl Indeed this is where it was originally, prior to:
1240 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1241 late_LDFLAGS="$LDFLAGS"
1242 if test x$GCC = xyes; then
1243 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1245 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1248 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1250 AC_MSG_CHECKING([for -znocombreloc])
1251 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1252 [AC_MSG_RESULT(yes)],
1253 LDFLAGS_NOCOMBRELOC=
1254 [AC_MSG_RESULT(no)])
1256 LDFLAGS="$late_LDFLAGS"
1258 AC_CACHE_CHECK([whether addresses are sanitized],
1259 [emacs_cv_sanitize_address],
1262 [[#ifndef __has_feature
1263 #define __has_feature(f) 0
1265 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1267 error "Addresses are not sanitized.";
1270 [emacs_cv_sanitize_address=yes],
1271 [emacs_cv_sanitize_address=no])])
1273 dnl The function dump-emacs will not be defined and temacs will do
1274 dnl (load "loadup") automatically unless told otherwise.
1275 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1277 nacl) CANNOT_DUMP=yes ;;
1280 if test "$CANNOT_DUMP" = "yes"; then
1281 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1282 elif test "$emacs_cv_sanitize_address" = yes; then
1283 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1286 AC_SUBST(CANNOT_DUMP)
1289 UNEXEC_OBJ=unexelf.o
1291 # MSDOS uses unexcoff.o
1293 UNEXEC_OBJ=unexaix.o
1299 UNEXEC_OBJ=unexmacosx.o
1302 UNEXEC_OBJ=unexhp9k800.o
1305 UNEXEC_OBJ=unexw32.o
1308 # Use the Solaris dldump() function, called from unexsol.c, to dump
1309 # emacs, instead of the generic ELF dump code found in unexelf.c.
1310 # The resulting binary has a complete symbol table, and is better
1311 # for debugging and other observability tools (debuggers, pstack, etc).
1313 # If you encounter a problem using dldump(), please consider sending
1314 # a message to the OpenSolaris tools-linking mailing list:
1315 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1317 # It is likely that dldump() works with older Solaris too, but this has
1318 # not been tested, so for now this change is for Solaris 10 or newer.
1319 UNEXEC_OBJ=unexsol.o
1326 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1327 ## The system compiler, GCC, has apparently been modified to not
1328 ## look there, contrary to what a stock GCC would do.
1329 ### It's not our place to do this. See bug#10313#17.
1330 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1335 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1336 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1340 ### It's not our place to do this. See bug#10313#17.
1341 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1346 ## Han Boetes <han@boetes.org> says this is necessary,
1347 ## otherwise Emacs dumps core on elf systems.
1348 LD_SWITCH_SYSTEM="-Z"
1351 AC_SUBST(LD_SWITCH_SYSTEM)
1353 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1355 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1356 ## which has not been defined yet. When this was handled with cpp,
1357 ## it was expanded to null when configure sourced the s/*.h file.
1358 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1359 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1360 ## (or somesuch), but because it is supposed to go at the _front_
1361 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1362 ## Compare with the gnu-linux case below, which added to the end
1363 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1364 ## LD_SWITCH_SYSTEM_TEMACS.
1367 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1374 AC_CHECK_DECL([__ELF__])
1375 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1376 ## With ELF, make sure that all common symbols get allocated to in the
1377 ## data section. Otherwise, the dump of temacs may miss variables in
1378 ## the shared library that have been initialized. For example, with
1379 ## GNU libc, __malloc_initialized would normally be resolved to the
1380 ## shared library's .bss section, which is fatal.
1381 if test "x$GCC" = "xyes"; then
1382 C_SWITCH_MACHINE="-fno-common"
1384 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1387 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1388 dnl albeit under the mistaken assumption that said file
1389 dnl was no longer used.
1390 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1394 AC_SUBST(C_SWITCH_MACHINE)
1396 AC_SUBST(UNEXEC_OBJ)
1399 ## Some programs in src produce warnings saying certain subprograms
1400 ## are too complex and need a MAXMEM value greater than 2000 for
1401 ## additional optimization. --nils@exp-math.uni-essen.de
1402 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1403 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1404 if test "$opsys" = "mingw32"; then
1405 case "$canonical" in
1406 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1407 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1410 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1411 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1412 AC_SUBST(C_SWITCH_SYSTEM)
1417 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1418 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1420 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1422 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1424 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1426 ## Motif needs -lgen.
1427 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1430 AC_SUBST(LIBS_SYSTEM)
1432 ### Make sure subsequent tests use flags consistent with the build flags.
1434 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1435 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1437 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1440 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1441 AC_DEFUN([AC_TYPE_SIZE_T])
1442 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1443 AC_DEFUN([AC_TYPE_UID_T])
1445 # sqrt and other floating-point functions such as fmod and frexp
1446 # are found in -lm on many systems.
1448 AC_SEARCH_LIBS([sqrt], [m])
1449 if test "X$LIBS" = "X$OLD_LIBS"; then
1452 LIB_MATH=$ac_cv_search_sqrt
1456 dnl Current possibilities handled by sed (aix4-2 -> aix,
1457 dnl gnu-linux -> gnu/linux, etc.):
1458 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1459 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1460 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1467 ## Adding -lm confuses the dynamic linker, so omit it.
1470 freebsd | dragonfly )
1471 SYSTEM_TYPE=berkeley-unix
1473 gnu-linux | gnu-kfreebsd )
1475 hpux10-20 | hpux11 )
1479 SYSTEM_TYPE=windows-nt
1481 dnl NB this may be adjusted below.
1483 SYSTEM_TYPE=berkeley-unix
1487 SYSTEM_TYPE=usg-unix-v
1493 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1494 [The type of system you are compiling for; sets 'system-type'.])
1497 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1498 pre_PKG_CONFIG_LIBS=$LIBS
1500 PKG_PROG_PKG_CONFIG(0.9.0)
1502 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1503 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1504 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1505 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1506 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1507 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1509 AC_DEFUN([EMACS_CHECK_MODULES],
1510 [PKG_CHECK_MODULES([$1], [$2],
1511 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1512 m4_default([$3], [HAVE_$1=yes])],
1513 [m4_default([$4], [HAVE_$1=no])])])
1516 if test "${with_sound}" != "no"; then
1517 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1518 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1519 have_sound_header=yes, [], [
1521 #define WIN32_LEAN_AND_MEAN
1522 #include <windows.h>
1525 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1526 AC_MSG_ERROR([OSS sound support requested but not found.])
1528 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1529 # Emulation library used on NetBSD.
1530 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1531 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1532 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1533 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1534 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1538 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1540 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1541 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1542 if test $HAVE_ALSA = yes; then
1543 SAVE_CFLAGS="$CFLAGS"
1545 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1546 LIBS="$ALSA_LIBS $LIBS"
1547 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1548 emacs_alsa_normal=yes,
1549 emacs_alsa_normal=no)
1550 if test "$emacs_alsa_normal" != yes; then
1551 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1552 [[snd_lib_error_set_handler (0);]])],
1553 emacs_alsa_subdir=yes,
1554 emacs_alsa_subdir=no)
1555 if test "$emacs_alsa_subdir" != yes; then
1556 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1558 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1561 CFLAGS="$SAVE_CFLAGS"
1563 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1564 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1565 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1566 elif test "${with_sound}" = "alsa"; then
1567 AC_MSG_ERROR([ALSA sound support requested but not found.])
1569 fi dnl with_sound = alsa|yes
1571 dnl Define HAVE_SOUND if we have sound support. We know it works and
1572 dnl compiles only on the specified platforms. For others, it
1573 dnl probably doesn't make sense to try.
1574 dnl FIXME So surely we should bypass this whole section if not using
1575 dnl one of these platforms?
1576 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1578 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1579 dnl Adjust the --with-sound help text if you change this.
1580 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1581 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1587 AC_SUBST(CFLAGS_SOUND)
1590 dnl checks for header files
1591 AC_CHECK_HEADERS_ONCE(
1597 sys/utsname.h pwd.h utmp.h util.h)
1599 AC_MSG_CHECKING(if personality LINUX32 can be set)
1600 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1601 emacs_cv_personality_linux32=yes,
1602 emacs_cv_personality_linux32=no)
1603 AC_MSG_RESULT($emacs_cv_personality_linux32)
1605 if test $emacs_cv_personality_linux32 = yes; then
1606 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1607 [Define to 1 if personality LINUX32 can be set.])
1610 # Note that Solaris has sys/sysinfo.h which defines struct
1611 # sysinfo as well. To make sure that we're using GNU/Linux
1612 # sysinfo, we explicitly set one of its fields.
1613 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1614 AC_MSG_CHECKING([if Linux sysinfo may be used])
1615 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1616 [[struct sysinfo si;
1619 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1620 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1621 if test $emacs_cv_linux_sysinfo = yes; then
1622 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1623 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1624 [[struct sysinfo si; return si.mem_unit]])],
1625 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1626 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1630 dnl On Solaris 8 there's a compilation warning for term.h because
1631 dnl it doesn't define 'bool'.
1632 AC_CHECK_HEADERS(term.h, , , -)
1634 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1636 if test $ac_cv_have_decl_sys_siglist != yes; then
1637 # For Tru64, at least:
1638 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1643 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1644 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1645 #if HAVE_SYS_SOCKET_H
1646 #include <sys/socket.h>
1648 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1649 #if HAVE_SYS_SOCKET_H
1650 #include <sys/socket.h>
1652 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1653 #if HAVE_SYS_SOCKET_H
1654 #include <sys/socket.h>
1657 dnl checks for structure members
1658 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1659 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1660 struct ifreq.ifr_addr,
1661 struct ifreq.ifr_addr.sa_len], , ,
1662 [AC_INCLUDES_DEFAULT
1663 #if HAVE_SYS_SOCKET_H
1664 #include <sys/socket.h>
1670 dnl Check for endianness.
1671 dnl AC_C_BIGENDIAN is done by gnulib.
1673 dnl check for Make feature
1676 dnl check if we have GCC and autodepend is on.
1677 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1678 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1679 SAVE_CFLAGS="$CFLAGS"
1680 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1681 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1682 CFLAGS="$SAVE_CFLAGS"
1683 test -f deps.d || ac_enable_autodepend=no
1685 AC_MSG_RESULT([$ac_enable_autodepend])
1686 if test $ac_enable_autodepend = yes; then
1690 AC_SUBST(AUTO_DEPEND)
1692 dnl checks for operating system services
1693 AC_SYS_LONG_FILE_NAMES
1695 #### Choose a window system.
1697 ## We leave window_system equal to none if
1698 ## we end up building without one. Any new window system should
1699 ## set window_system to an appropriate value and add objects to
1700 ## window-system-specific substs.
1704 if test "$no_x" != yes; then
1708 LD_SWITCH_X_SITE_RPATH=
1709 if test "${x_libraries}" != NONE; then
1710 if test -n "${x_libraries}"; then
1711 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1712 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1713 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1716 x_default_search_path=""
1717 x_search_path=${x_libraries}
1718 if test -z "${x_search_path}"; then
1719 x_search_path=/usr/lib
1721 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1722 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1724 ${x_library}/X11/%L/%T/%N%C%S:\
1725 ${x_library}/X11/%l/%T/%N%C%S:\
1726 ${x_library}/X11/%T/%N%C%S:\
1727 ${x_library}/X11/%L/%T/%N%S:\
1728 ${x_library}/X11/%l/%T/%N%S:\
1729 ${x_library}/X11/%T/%N%S"
1730 if test x"${x_default_search_path}" = x; then
1731 x_default_search_path=${x_search_path}
1733 x_default_search_path="${x_search_path}:${x_default_search_path}"
1737 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1739 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1740 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1743 if test x"${x_includes}" = x; then
1744 bitmapdir=/usr/include/X11/bitmaps
1746 # accumulate include directories that have X11 bitmap subdirectories
1748 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1749 if test -d "${bmd}/X11/bitmaps"; then
1750 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1752 if test -d "${bmd}/bitmaps"; then
1753 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1756 bitmapdir=${bmd_acc#:}
1759 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1761 NS_GNUSTEP_CONFIG=no
1764 tmp_CPPFLAGS="$CPPFLAGS"
1765 tmp_CFLAGS="$CFLAGS"
1766 CPPFLAGS="$CPPFLAGS -x objective-c"
1767 CFLAGS="$CFLAGS -x objective-c"
1770 if test "${with_ns}" != no; then
1771 if test "${opsys}" = darwin; then
1773 ns_appdir=`pwd`/nextstep/Emacs.app
1774 ns_appbindir=${ns_appdir}/Contents/MacOS
1775 ns_appresdir=${ns_appdir}/Contents/Resources
1776 ns_appsrc=Cocoa/Emacs.base
1777 ns_fontfile=macfont.o
1778 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1780 NS_GNUSTEP_CONFIG=yes
1781 GNU_OBJC_CFLAGS=$flags
1782 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1783 elif test -f $GNUSTEP_CONFIG_FILE; then
1785 dnl FIXME sourcing this several times in subshells seems inefficient.
1786 GNUSTEP_SYSTEM_HEADERS=$(
1787 . $GNUSTEP_CONFIG_FILE
1788 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1790 GNUSTEP_SYSTEM_LIBRARIES=$(
1791 . $GNUSTEP_CONFIG_FILE
1792 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1794 dnl I seemed to need these as well with GNUstep-startup 0.25.
1795 GNUSTEP_LOCAL_HEADERS=$(
1796 . $GNUSTEP_CONFIG_FILE
1797 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1799 GNUSTEP_LOCAL_LIBRARIES=$(
1800 . $GNUSTEP_CONFIG_FILE
1801 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1803 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1804 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1805 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1806 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1807 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1808 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1809 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1810 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1811 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1812 dnl If they had chosen to either define it or not, we could have
1813 dnl just used AC_CHECK_DECL here.
1814 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1815 emacs_cv_objc_exceptions,
1816 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1817 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1821 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1822 if test $emacs_cv_objc_exceptions = yes; then
1823 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1824 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1825 [Define if GNUstep uses ObjC exceptions.])
1826 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1829 if test $NS_IMPL_GNUSTEP = yes; then
1830 ns_appdir=`pwd`/nextstep/Emacs.app
1831 ns_appbindir=${ns_appdir}
1832 ns_appresdir=${ns_appdir}/Resources
1833 ns_appsrc=GNUstep/Emacs.base
1834 ns_fontfile=nsfont.o
1837 dnl This is only used while we test the NS headers, it gets reset below.
1838 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1839 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1841 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1842 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1843 are required for a Nextstep build are missing or cannot be compiled.
1844 Either fix this, or re-configure with the option '--without-ns'.])])
1847 if test "${NS_IMPL_COCOA}" = "yes"; then
1848 AC_MSG_CHECKING([for OSX 10.6 or newer])
1849 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1851 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1852 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1855 error "OSX 10.6 or newer required";
1859 ns_osx_have_106=yes,
1861 AC_MSG_RESULT([$ns_osx_have_106])
1863 if test $ns_osx_have_106 = no; then
1864 AC_MSG_ERROR([OSX 10.6 or newer is required]);
1869 AC_SUBST(LIBS_GNUSTEP)
1871 INSTALL_ARCH_INDEP_EXTRA=install-etc
1872 ns_self_contained=no
1875 if test "${HAVE_NS}" = yes; then
1876 if test "$with_toolkit_scroll_bars" = "no"; then
1877 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1880 window_system=nextstep
1881 # set up packaging dirs
1882 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1883 ns_self_contained=yes
1884 prefix=${ns_appresdir}
1885 exec_prefix=${ns_appbindir}
1886 dnl This one isn't really used, only archlibdir is.
1887 libexecdir="\${ns_appbindir}/libexec"
1888 archlibdir="\${ns_appbindir}/libexec"
1889 etcdocdir="\${ns_appresdir}/etc"
1890 etcdir="\${ns_appresdir}/etc"
1891 dnl FIXME maybe set datarootdir instead.
1892 dnl That would also get applications, icons, man.
1893 infodir="\${ns_appresdir}/info"
1894 mandir="\${ns_appresdir}/man"
1895 lispdir="\${ns_appresdir}/lisp"
1896 test "$locallisppathset" = no && locallisppath=""
1897 INSTALL_ARCH_INDEP_EXTRA=
1900 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1902 CFLAGS="$tmp_CFLAGS"
1903 CPPFLAGS="$tmp_CPPFLAGS"
1904 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1905 AC_SUBST(ns_self_contained)
1907 AC_SUBST(NS_OBJC_OBJ)
1918 if test "${with_w32}" != no; then
1921 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1922 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1923 cannot be found.])])
1926 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1929 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1934 if test "${opsys}" = "mingw32"; then
1935 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1936 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1937 #include <windows.h>
1938 #include <usp10.h>]],
1939 [[PIMAGE_NT_HEADERS pHeader;
1940 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1941 [emacs_cv_w32api=yes
1944 AC_MSG_RESULT($emacs_cv_w32api)
1945 if test "${emacs_cv_w32api}" = "no"; then
1946 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1957 if test "${HAVE_W32}" = "yes"; then
1958 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1959 if test "$with_toolkit_scroll_bars" = "no"; then
1960 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
1962 AC_CHECK_TOOL(WINDRES, [windres],
1963 [AC_MSG_ERROR([No resource compiler found.])])
1964 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1965 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1966 EMACSRES="emacs.res"
1967 case "$canonical" in
1968 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1969 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1971 dnl Construct something of the form "24,4,0,0" with 4 components.
1972 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
1974 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
1975 AC_SUBST(comma_version)
1976 AC_SUBST(comma_space_version)
1977 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
1978 if test "${opsys}" = "cygwin"; then
1979 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1980 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1981 # Tell the linker that emacs.res is an object (which we compile from
1982 # the rc file), not a linker script.
1983 W32_RES_LINK="-Wl,emacs.res"
1985 UPDATE_MANIFEST=update-game-score.exe.manifest
1986 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1987 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1988 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1989 W32_RES_LINK="\$(EMACSRES)"
1990 CLIENTRES="emacsclient.res"
1991 CLIENTW="emacsclientw\$(EXEEXT)"
1992 FIRSTFILE_OBJ=firstfile.o
1995 LIBS_ECLIENT="-lcomctl32"
1996 LIB_WSOCK32="-lwsock32"
1997 NTLIB="ntlib.$ac_objext"
1998 XARGS_LIMIT="-s 10000"
2004 AC_SUBST(EMACS_MANIFEST)
2005 AC_SUBST(UPDATE_MANIFEST)
2008 AC_SUBST(W32_RES_LINK)
2009 AC_SUBST(FIRSTFILE_OBJ)
2012 AC_SUBST(LIBS_ECLIENT)
2013 AC_SUBST(LIB_WSOCK32)
2015 AC_SUBST(XARGS_LIMIT)
2017 if test "${HAVE_W32}" = "yes"; then
2022 ## $window_system is now set to the window system we will
2025 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
2026 # Too many warnings for now.
2028 nw="$nw -Wsuggest-attribute=noreturn"
2029 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
2031 gl_WARN_ADD([-Wno-unused-variable])
2032 gl_WARN_ADD([-Wno-unused-but-set-variable])
2033 gl_WARN_ADD([-Wno-unused-but-set-parameter])
2041 case "${window_system}" in
2046 case "${with_x_toolkit}" in
2047 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2048 motif ) USE_X_TOOLKIT=MOTIF ;;
2050 term_header=gtkutil.h
2051 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2052 dnl USE_X_TOOLKIT is set.
2053 USE_X_TOOLKIT=none ;;
2054 gtk2 ) with_gtk2=yes
2055 term_header=gtkutil.h
2056 USE_X_TOOLKIT=none ;;
2057 gtk3 ) with_gtk3=yes
2058 term_header=gtkutil.h
2059 USE_X_TOOLKIT=none ;;
2060 no ) USE_X_TOOLKIT=none ;;
2061 dnl If user did not say whether to use a toolkit, make this decision later:
2062 dnl use the toolkit if we have gtk, or X11R5 or newer.
2063 * ) USE_X_TOOLKIT=maybe ;;
2067 term_header=nsterm.h
2070 term_header=w32term.h
2074 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2075 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2076 if test "$HAVE_XSERVER" = true ||
2077 test -n "$DISPLAY" ||
2079 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2080 test "$emacs_libX11" != '/usr/lib/libX11.*'
2083 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2084 were found. You should install the relevant development files for X
2085 and for the toolkit you want, such as Gtk+ or Motif. Also make
2086 sure you have development files for image handling, i.e.
2087 tiff, gif, jpeg, png and xpm.
2088 If you are sure you want Emacs compiled without X window support, pass
2094 # Does the opsystem file prohibit the use of the GNU malloc?
2095 # Assume not, until told otherwise.
2099 [whether malloc is Doug Lea style],
2100 [emacs_cv_var_doug_lea_malloc],
2101 [emacs_cv_var_doug_lea_malloc=no
2102 dnl Hooks do not work with address sanitization.
2103 if test "$emacs_cv_sanitize_address" != yes; then
2106 [[#include <malloc.h>
2107 static void hook (void) {}]],
2108 [[malloc_set_state (malloc_get_state ());
2109 __after_morecore_hook = hook;
2110 __malloc_initialize_hook = hook;]])],
2111 [emacs_cv_var_doug_lea_malloc=yes])
2113 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2115 system_malloc=$emacs_cv_sanitize_address
2120 ## darwin ld insists on the use of malloc routines in the System framework.
2121 darwin | mingw32 | nacl | sol2-10) system_malloc=yes ;;
2122 cygwin) hybrid_malloc=yes;;
2125 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2126 && test "${UNEXEC_OBJ}" = unexelf.o; then
2132 if test "${system_malloc}" = "yes"; then
2133 AC_DEFINE([SYSTEM_MALLOC], 1,
2134 [Define to 1 to use the system memory allocator, even if it is not
2138 (The GNU allocators don't work with this system configuration.)"
2140 elif test "$hybrid_malloc" = yes; then
2141 AC_DEFINE(HYBRID_MALLOC, 1,
2142 [Define to use gmalloc before dumping and the system malloc after.])
2145 GNU_MALLOC_reason="only before dumping"
2146 GMALLOC_OBJ=gmalloc.o
2149 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2150 VMLIMIT_OBJ=vm-limit.o
2152 AC_CHECK_HEADERS([sys/vlimit.h])
2153 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2156 [[extern char data_start[]; char ch;]],
2157 [[return data_start < &ch;]])],
2158 [emacs_cv_data_start=yes],
2159 [emacs_cv_data_start=no])])
2160 if test $emacs_cv_data_start = yes; then
2161 AC_DEFINE([HAVE_DATA_START], 1,
2162 [Define to 1 if data_start is the address of the start
2163 of the main data segment.])
2166 AC_SUBST([HYBRID_MALLOC])
2167 AM_CONDITIONAL([HYBRID_MALLOC_LIB], [test -n "$HYBRID_MALLOC"])
2168 AC_SUBST(GMALLOC_OBJ)
2169 AC_SUBST(VMLIMIT_OBJ)
2171 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2172 if test "$GNU_MALLOC" = yes ; then
2174 (Using Doug Lea's new malloc from the GNU C Library.)"
2176 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2177 [Define to 1 if the system memory allocator is Doug Lea style,
2178 with malloc hooks and malloc_set_state.])
2180 ## Use mmap directly for allocating larger buffers.
2181 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2182 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2183 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2185 mingw32|gnu*) REL_ALLOC=no ;;
2189 if test x"${REL_ALLOC}" = x; then
2190 REL_ALLOC=${GNU_MALLOC}
2193 use_mmap_for_buffers=no
2195 cygwin|mingw32|irix6-5) use_mmap_for_buffers=yes ;;
2199 if test $use_mmap_for_buffers = yes; then
2200 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2204 LIBS="$LIBS_SYSTEM $LIBS"
2206 dnl FIXME replace main with a function we actually want from this library.
2207 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2209 dnl Check for the POSIX thread library.
2211 AC_CHECK_HEADERS_ONCE(pthread.h)
2212 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2213 AC_CACHE_CHECK([for pthread library],
2214 [emacs_cv_pthread_lib],
2215 [emacs_cv_pthread_lib=no
2217 for emacs_pthread_lib in 'none needed' -lpthread; do
2218 case $emacs_pthread_lib in
2219 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2223 [[#include <pthread.h>
2225 sigset_t old_mask, new_mask;
2226 void noop (void) {}]],
2227 [[pthread_t th = pthread_self ();
2229 status += pthread_create (&th, 0, 0, 0);
2230 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2231 status += pthread_kill (th, 0);
2232 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2233 || defined DOUG_LEA_MALLOC)
2234 /* Test for pthread_atfork only if gmalloc uses it,
2235 as older-style hosts like MirBSD 10 lack it. */
2236 status += pthread_atfork (noop, noop, noop);
2239 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2241 if test "$emacs_cv_pthread_lib" != no; then
2245 if test "$emacs_cv_pthread_lib" != no; then
2246 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2247 case $emacs_cv_pthread_lib in
2248 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2250 ac_cv_func_pthread_sigmask=yes
2251 # Some systems optimize for single-threaded programs by default, and
2252 # need special flags to disable these optimizations. For example, the
2253 # definition of 'errno' in <errno.h>.
2256 AC_DEFINE([_REENTRANT], 1,
2257 [Define to 1 if your system requires this in multithreaded code.]);;
2259 AC_DEFINE([_THREAD_SAFE], 1,
2260 [Define to 1 if your system requires this in multithreaded code.]);;
2264 AC_SUBST([LIB_PTHREAD])
2266 dnl Check for need for bigtoc support on IBM AIX
2270 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2272 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2273 *) gdb_cv_bigtoc=-bbigtoc ;;
2276 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2277 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2282 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2283 # is for the tests that follow. We set them back later on.
2285 REAL_CFLAGS="$CFLAGS"
2286 REAL_CPPFLAGS="$CPPFLAGS"
2289 if test "${HAVE_X11}" = "yes"; then
2290 DEFS="$C_SWITCH_X_SITE $DEFS"
2291 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2293 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2294 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2296 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2297 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2298 # but it's more convenient here to set LD_RUN_PATH since this
2299 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2300 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2301 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2305 if test "${opsys}" = "gnu-linux"; then
2306 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2307 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2308 [[XOpenDisplay ("foo");]])],
2309 [xgnu_linux_first_failure=no],
2310 [xgnu_linux_first_failure=yes])
2311 if test "${xgnu_linux_first_failure}" = "yes"; then
2312 OLD_CPPFLAGS="$CPPFLAGS"
2314 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2315 LIBS="$LIBS -b i486-linuxaout"
2316 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2317 [[XOpenDisplay ("foo");]])],
2318 [xgnu_linux_second_failure=no],
2319 [xgnu_linux_second_failure=yes])
2320 if test "${xgnu_linux_second_failure}" = "yes"; then
2321 # If we get the same failure with -b, there is no use adding -b.
2322 # So leave it out. This plays safe.
2325 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2326 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2329 CPPFLAGS=$OLD_CPPFLAGS
2336 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2337 # header files included from there.
2338 AC_MSG_CHECKING(for Xkb)
2339 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2340 #include <X11/XKBlib.h>]],
2341 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2342 emacs_xkb=yes, emacs_xkb=no)
2343 AC_MSG_RESULT($emacs_xkb)
2344 if test $emacs_xkb = yes; then
2345 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2348 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2349 XScreenNumberOfScreen)
2352 if test "${window_system}" = "x11"; then
2353 AC_MSG_CHECKING(X11 version 6)
2354 AC_CACHE_VAL(emacs_cv_x11_version_6,
2355 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2356 [[#if XlibSpecificationRelease < 6
2359 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2360 if test $emacs_cv_x11_version_6 = yes; then
2361 AC_MSG_RESULT(6 or newer)
2362 AC_DEFINE(HAVE_X11R6, 1,
2363 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2364 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2365 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2369 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2370 [Define if you have usable X11R6-style XIM support.])
2374 AC_MSG_RESULT(before 6)
2379 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2381 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2382 if test "${with_rsvg}" != "no"; then
2383 RSVG_REQUIRED=2.11.0
2384 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2386 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2387 AC_SUBST(RSVG_CFLAGS)
2390 if test $HAVE_RSVG = yes; then
2391 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2392 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2393 # Windows loads librsvg dynamically
2394 if test "${opsys}" = "mingw32"; then
2402 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2403 if test "${with_imagemagick}" != "no"; then
2404 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2405 ## 6.8.2 makes Emacs crash; see Bug#13867.
2406 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2407 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2408 AC_SUBST(IMAGEMAGICK_CFLAGS)
2409 AC_SUBST(IMAGEMAGICK_LIBS)
2411 if test $HAVE_IMAGEMAGICK = yes; then
2412 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2415 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2416 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2417 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2427 gtk_term_header=$term_header
2430 if test "${opsys}" != "mingw32"; then
2431 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2434 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2436 dnl Checks for libraries.
2437 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2438 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2439 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2440 AC_MSG_ERROR($GTK_PKG_ERRORS)
2442 if test "$pkg_check_gtk" = "yes"; then
2443 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2444 GTK_OBJ=emacsgtkfixed.o
2445 gtk_term_header=gtkutil.h
2446 USE_GTK_TOOLKIT="GTK3"
2447 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2448 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2449 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2450 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2451 [Define to 1 to disable Glib deprecation warnings.])
2455 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2459 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2462 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2464 dnl Checks for libraries.
2465 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2466 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2467 if test "$pkg_check_gtk" = "no" &&
2468 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2470 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2472 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2479 if test x"$pkg_check_gtk" = xyes; then
2482 CFLAGS="$CFLAGS $GTK_CFLAGS"
2483 LIBS="$GTK_LIBS $LIBS"
2484 dnl Try to compile a simple GTK program.
2485 AC_MSG_CHECKING([whether GTK compiles])
2489 [[/* Check the Gtk and Glib APIs. */
2490 #include <gtk/gtk.h>
2491 #include <glib-object.h>
2493 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2497 GtkSettings *gs = 0;
2498 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2499 strict C prohibits this. Use gtk_main_iteration to test that the
2500 libraries are there. */
2501 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2502 0, 0, 0, G_CALLBACK (callback), 0))
2503 gtk_main_iteration ();
2506 AC_MSG_RESULT([$GTK_COMPILES])
2507 if test "${GTK_COMPILES}" != "yes"; then
2509 if test "$USE_X_TOOLKIT" != "maybe"; then
2510 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2513 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2515 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2516 GTK_OBJ="gtkutil.o $GTK_OBJ"
2517 term_header=$gtk_term_header
2519 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2520 closing open displays. This is no problem if you just use
2521 one display, but if you use more than one and close one of them
2523 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2531 if test "${HAVE_GTK}" = "yes"; then
2533 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2534 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2535 if test "$with_toolkit_scroll_bars" != no; then
2536 with_toolkit_scroll_bars=yes
2539 dnl Check if we have the old file selection dialog declared and
2540 dnl in the link library. In 2.x it may be in the library,
2541 dnl but not declared if deprecated featured has been selected out.
2542 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2543 HAVE_GTK_FILE_SELECTION=no
2544 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2545 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2546 #include <gtk/gtk.h>])
2547 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2548 AC_CHECK_FUNCS(gtk_file_selection_new)
2551 dnl Same as above for gtk_handle_box.
2552 HAVE_GTK_HANDLE_BOX=no
2553 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2554 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2555 #include <gtk/gtk.h>])
2556 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2557 AC_CHECK_FUNCS(gtk_handle_box_new)
2560 dnl Same as above for gtk_tearoff_menu_item.
2561 HAVE_GTK_TEAROFF_MENU_ITEM=no
2562 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2563 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2564 #include <gtk/gtk.h>])
2565 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2566 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2569 dnl Check for functions introduced in 2.14 and later.
2570 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2571 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2572 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2573 gtk_orientable_set_orientation \
2574 gtk_window_set_has_resize_grip)
2576 term_header=gtkutil.h
2580 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2583 if test "$with_xwidgets" != "no"; then
2584 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2585 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2587 WEBKIT_REQUIRED=1.4.0
2588 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2589 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2590 HAVE_XWIDGETS=$HAVE_WEBKIT
2591 test $HAVE_XWIDGETS = yes ||
2592 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2594 XWIDGETS_OBJ=xwidget.o
2595 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2597 AC_SUBST(XWIDGETS_OBJ)
2602 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2603 dnl other platforms.
2606 if test "${with_dbus}" = "yes"; then
2607 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2608 if test "$HAVE_DBUS" = yes; then
2609 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2610 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2611 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2614 LIBS="$LIBS $DBUS_LIBS"
2615 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2616 dbus_type_is_valid \
2617 dbus_validate_bus_name \
2618 dbus_validate_path \
2619 dbus_validate_interface \
2620 dbus_validate_member)
2625 AC_SUBST(DBUS_CFLAGS)
2629 dnl GSettings has been tested under GNU/Linux only.
2631 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2632 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2633 if test "$HAVE_GSETTINGS" = "yes"; then
2635 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2637 LIBS="$LIBS $GSETTINGS_LIBS"
2638 AC_MSG_CHECKING([whether GSettings is in gio])
2641 [[/* Check that gsettings really is present. */
2642 #include <glib-object.h>
2643 #include <gio/gio.h>
2646 GSettings *settings;
2647 GVariant *val = g_settings_get_value (settings, "");
2649 [], HAVE_GSETTINGS=no)
2650 AC_MSG_RESULT([$HAVE_GSETTINGS])
2652 if test "$HAVE_GSETTINGS" = "yes"; then
2653 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2654 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2655 SETTINGS_LIBS="$GSETTINGS_LIBS"
2662 dnl GConf has been tested under GNU/Linux only.
2663 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2665 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2666 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2667 if test "$HAVE_GCONF" = yes; then
2668 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2669 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2670 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2671 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2675 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2676 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2677 if test "$HAVE_GOBJECT" = "yes"; then
2678 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2679 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2681 SAVE_CFLAGS="$CFLAGS"
2683 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2684 LIBS="$SETTINGS_LIBS $LIBS"
2685 CFLAGS="$SAVE_CFLAGS"
2688 AC_SUBST(SETTINGS_CFLAGS)
2689 AC_SUBST(SETTINGS_LIBS)
2692 dnl SELinux is available for GNU/Linux only.
2695 if test "${with_selinux}" = "yes"; then
2696 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2697 if test "$HAVE_LIBSELINUX" = yes; then
2698 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2699 LIBSELINUX_LIBS=-lselinux
2702 AC_SUBST(LIBSELINUX_LIBS)
2705 if test "${with_gnutls}" = "yes" ; then
2706 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2707 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2708 if test "${HAVE_GNUTLS}" = "yes"; then
2709 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2710 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2711 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2714 # Windows loads GnuTLS dynamically
2715 if test "${opsys}" = "mingw32"; then
2720 AC_SUBST(LIBGNUTLS_LIBS)
2721 AC_SUBST(LIBGNUTLS_CFLAGS)
2726 dnl MS Windows native file monitor is available for mingw32 only.
2727 case $with_file_notification,$opsys in
2729 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2730 this is only supported on MS-Windows native and MinGW32 builds.
2731 Consider using gfile instead.])
2733 w32,* | yes,mingw32)
2734 AC_CHECK_HEADER(windows.h)
2735 if test "$ac_cv_header_windows_h" = yes ; then
2736 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2737 NOTIFY_OBJ=w32notify.o
2738 NOTIFY_SUMMARY="yes (w32)"
2742 dnl inotify is available only on GNU/Linux.
2743 case $with_file_notification,$NOTIFY_OBJ in
2745 AC_CHECK_HEADER(sys/inotify.h)
2746 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2747 AC_CHECK_FUNC(inotify_init1)
2748 if test "$ac_cv_func_inotify_init1" = yes; then
2749 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2750 NOTIFY_OBJ=inotify.o
2751 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2756 dnl kqueue is available on BSD-like systems.
2757 case $with_file_notification,$NOTIFY_OBJ in
2759 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2760 if test "$HAVE_KQUEUE" = "yes"; then
2761 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2762 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2763 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2764 NOTIFY_LIBS=$KQUEUE_LIBS
2766 NOTIFY_SUMMARY="yes -lkqueue"
2768 AC_SEARCH_LIBS(kqueue, [])
2769 if test "$ac_cv_search_kqueue" != no; then
2770 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2772 NOTIFY_SUMMARY="yes (kqueue)"
2777 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2778 dnl has been added in glib 2.24. It has been tested under
2780 case $with_file_notification,$NOTIFY_OBJ in
2782 if test "${HAVE_NS}" = yes; then
2783 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2784 Consider kqueue instead.])
2786 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2787 if test "$HAVE_GFILENOTIFY" = "yes"; then
2788 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2789 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2790 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2791 NOTIFY_OBJ=gfilenotify.o
2792 NOTIFY_SUMMARY="yes -lgio (gfile)"
2797 case $with_file_notification,$NOTIFY_OBJ in
2798 yes,* | no,* | *,?*) ;;
2799 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2802 if test -n "$NOTIFY_OBJ"; then
2803 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2805 AC_SUBST(NOTIFY_CFLAGS)
2806 AC_SUBST(NOTIFY_LIBS)
2807 AC_SUBST(NOTIFY_OBJ)
2809 dnl Do not put whitespace before the #include statements below.
2810 dnl Older compilers (eg sunos4 cc) choke on it.
2813 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2814 if test "$with_xaw3d" != no; then
2815 AC_CACHE_VAL(emacs_cv_xaw3d,
2816 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2817 #include <X11/Intrinsic.h>
2818 #include <X11/Xaw3d/Simple.h>]],
2820 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2821 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2822 emacs_cv_xaw3d=no)])
2826 if test $emacs_cv_xaw3d = yes; then
2827 AC_MSG_CHECKING(for xaw3d)
2828 AC_MSG_RESULT([yes; using Lucid toolkit])
2832 AC_DEFINE(HAVE_XAW3D, 1,
2833 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2835 AC_MSG_CHECKING(for xaw3d)
2837 AC_MSG_CHECKING(for libXaw)
2838 AC_CACHE_VAL(emacs_cv_xaw,
2839 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2840 #include <X11/Intrinsic.h>
2841 #include <X11/Xaw/Simple.h>]],
2845 if test $emacs_cv_xaw = yes; then
2846 AC_MSG_RESULT([yes; using Lucid toolkit])
2849 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2850 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2852 AC_MSG_ERROR([No X toolkit could be found.
2853 If you are sure you want Emacs compiled without an X toolkit, pass
2855 to configure. Otherwise, install the development libraries for the toolkit
2856 that you want to use (e.g. Gtk+) and re-run configure.])
2861 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2865 if test "${USE_X_TOOLKIT}" != "none"; then
2866 AC_MSG_CHECKING(X11 toolkit version)
2867 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2868 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2869 [[#if XtSpecificationRelease < 6
2872 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2873 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2874 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2875 AC_MSG_RESULT(6 or newer)
2876 AC_DEFINE(HAVE_X11XTR6, 1,
2877 [Define to 1 if you have the X11R6 or newer version of Xt.])
2878 LIBXTR6="-lSM -lICE"
2880 ## Use libw.a along with X11R6 Xt.
2881 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2884 AC_MSG_RESULT(before 6)
2887 dnl If using toolkit, check whether libXmu.a exists.
2888 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2890 if test x$HAVE_X11XTR6 = xyes; then
2891 OTHERLIBS='-lXt -lSM -lICE'
2895 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2896 if test "X$LIBS" != "X$OLDLIBS"; then
2897 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2900 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2906 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2907 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2908 if test -d /usr/include/openmotif; then
2909 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2910 emacs_cv_openmotif=yes
2911 case "$canonical" in
2912 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2913 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2916 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2919 emacs_cv_openmotif=no
2921 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2922 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2923 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2926 Motif version prior to 2.1.
2928 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2929 if test $emacs_cv_motif_version_2_1 = yes; then
2930 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2931 if test x$emacs_cv_openmotif = xyes; then
2932 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2935 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2936 # We put this in CFLAGS temporarily to precede other -I options
2937 # that might be in CFLAGS temporarily.
2938 # We put this in CPPFLAGS where it precedes the other -I options.
2939 OLD_CPPFLAGS=$CPPFLAGS
2941 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2942 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2943 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2945 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2946 if test $emacs_cv_lesstif = yes; then
2947 # Make sure this -I option remains in CPPFLAGS after it is set
2948 # back to REAL_CPPFLAGS.
2949 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2950 # have those other -I options anyway. Ultimately, having this
2951 # directory ultimately in CPPFLAGS will be enough.
2952 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2953 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2956 CPPFLAGS=$OLD_CPPFLAGS
2959 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2960 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2963 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2964 dnl using Motif or Xaw3d is available, and unless
2965 dnl --with-toolkit-scroll-bars=no was specified.
2967 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2968 [Define to 1 if we should use toolkit scroll bars.])dnl
2969 USE_TOOLKIT_SCROLL_BARS=no
2970 if test "${with_toolkit_scroll_bars}" != "no"; then
2971 if test "${USE_X_TOOLKIT}" != "none"; then
2972 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2973 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2975 USE_TOOLKIT_SCROLL_BARS=yes
2976 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2977 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2978 USE_TOOLKIT_SCROLL_BARS=yes
2980 elif test "${HAVE_GTK}" = "yes"; then
2981 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2982 USE_TOOLKIT_SCROLL_BARS=yes
2983 elif test "${HAVE_NS}" = "yes"; then
2984 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2985 USE_TOOLKIT_SCROLL_BARS=yes
2986 elif test "${HAVE_W32}" = "yes"; then
2987 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2988 USE_TOOLKIT_SCROLL_BARS=yes
2992 dnl See if XIM is available.
2993 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2994 #include <X11/Xlib.h>
2995 #include <X11/Xresource.h>]],
2996 [[XIMProc callback;]])],
2998 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3001 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3003 if test "${with_xim}" != "no"; then
3004 AC_DEFINE(USE_XIM, 1,
3005 [Define to 1 if we should use XIM, if it is available.])
3009 if test "${HAVE_XIM}" != "no"; then
3011 if test "$GCC" = yes; then
3012 CFLAGS="$CFLAGS --pedantic-errors"
3014 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3015 #include <X11/Xlib.h>
3016 #include <X11/Xresource.h>]],
3022 XPointer *client_data;
3024 /* If we're not using GCC, it's probably not XFree86, and this is
3025 probably right, but we can't use something like --pedantic-errors. */
3026 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3027 char*, XIMProc, XPointer*);
3029 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3031 [emacs_cv_arg6_star=yes])
3032 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3033 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3034 either XPointer or XPointer*.])dnl
3035 if test "$emacs_cv_arg6_star" = yes; then
3036 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3038 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3043 ### Start of font-backend (under any platform) section.
3044 # (nothing here yet -- this is a placeholder)
3045 ### End of font-backend (under any platform) section.
3047 ### Start of font-backend (under X11) section.
3048 if test "${HAVE_X11}" = "yes"; then
3049 ## Use -lXft if available, unless '--with-xft=no'.
3051 if test "x${with_x}" = "xno"; then
3055 if test "$with_xft" != no; then
3056 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3057 with_xft=$HAVE_FONTCONFIG
3060 if test "x${with_xft}" != "xno"; then
3062 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3063 ## Because xftfont.c uses XRenderQueryExtension, we also
3064 ## need to link to -lXrender.
3066 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3067 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3068 OLD_CPPFLAGS="$CPPFLAGS"
3069 OLD_CFLAGS="$CFLAGS"
3071 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3072 CFLAGS="$CFLAGS $XFT_CFLAGS"
3073 XFT_LIBS="-lXrender $XFT_LIBS"
3074 LIBS="$XFT_LIBS $LIBS"
3075 AC_CHECK_HEADER(X11/Xft/Xft.h,
3076 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3077 [[#include <X11/X.h>]])
3079 if test "${HAVE_XFT}" = "yes"; then
3080 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3082 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3083 fi # "${HAVE_XFT}" = "yes"
3084 CPPFLAGS=$OLD_CPPFLAGS
3087 fi # "$HAVE_XFT" != no
3088 fi # "x${with_xft}" != "xno"
3090 ## We used to allow building with FreeType and without Xft.
3091 ## However, the ftx font backend driver is not in good shape.
3092 if test "$HAVE_XFT" != "yes"; then
3093 dnl For the "Does Emacs use" message at the end.
3097 dnl Strict linkers fail with
3098 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3099 dnl if -lfreetype is not specified.
3100 dnl The following is needed to set FREETYPE_LIBS.
3101 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3103 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3107 if test "${HAVE_FREETYPE}" = "yes"; then
3108 AC_DEFINE(HAVE_FREETYPE, 1,
3109 [Define to 1 if using the freetype and fontconfig libraries.])
3110 if test "${with_libotf}" != "no"; then
3111 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3112 if test "$HAVE_LIBOTF" = "yes"; then
3113 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3114 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3115 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3116 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3117 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3118 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3119 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3123 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3124 dnl Does the new font backend require it, or can it work without it?
3128 if test "${HAVE_LIBOTF}" = yes; then
3129 if test "${with_m17n_flt}" != "no"; then
3130 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3131 if test "$HAVE_M17N_FLT" = "yes"; then
3132 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3143 ### End of font-backend (under X11) section.
3145 AC_SUBST(FREETYPE_CFLAGS)
3146 AC_SUBST(FREETYPE_LIBS)
3147 AC_SUBST(FONTCONFIG_CFLAGS)
3148 AC_SUBST(FONTCONFIG_LIBS)
3149 AC_SUBST(LIBOTF_CFLAGS)
3150 AC_SUBST(LIBOTF_LIBS)
3151 AC_SUBST(M17N_FLT_CFLAGS)
3152 AC_SUBST(M17N_FLT_LIBS)
3155 if test "${HAVE_X11}" = "yes"; then
3156 if test "${with_cairo}" != "no"; then
3157 CAIRO_REQUIRED=1.12.0
3158 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3159 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3160 if test $HAVE_CAIRO = yes; then
3161 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3163 AC_MSG_ERROR([cairo requested but not found.])
3166 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3167 LIBS="$LIBS $CAIRO_LIBS"
3168 AC_SUBST(CAIRO_CFLAGS)
3169 AC_SUBST(CAIRO_LIBS)
3173 if test "${HAVE_X11}" = "yes"; then
3174 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3175 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3176 if test "${HAVE_XCB}" = "yes"; then
3177 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3178 if test "${HAVE_X11_XCB}" = "yes"; then
3179 AC_DEFINE(USE_XCB, 1,
3180 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3181 X11/XCB programming.])
3182 XCB_LIBS="-lX11-xcb -lxcb"
3188 ### Use -lXpm if available, unless '--with-xpm=no'.
3189 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3190 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3191 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3192 ### LDFLAGS) accordingly.
3195 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3196 if test "${with_xpm}" != "no"; then
3197 SAVE_CPPFLAGS="$CPPFLAGS"
3198 SAVE_LDFLAGS="$LDFLAGS"
3199 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3200 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3201 AC_CHECK_HEADER(X11/xpm.h,
3202 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3203 if test "${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 "${HAVE_XPM}" = "yes"; then
3213 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3217 CPPFLAGS="$SAVE_CPPFLAGS"
3218 LDFLAGS="$SAVE_LDFLAGS"
3223 if test "${HAVE_XPM}" = "yes"; then
3224 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3229 if test "${HAVE_X11}" = "yes"; then
3230 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3231 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3233 if test "${with_xpm}" != "no"; then
3234 AC_CHECK_HEADER(X11/xpm.h,
3235 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3236 if test "${HAVE_XPM}" = "yes"; then
3237 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3238 AC_EGREP_CPP(no_return_alloc_pixels,
3239 [#include "X11/xpm.h"
3240 #ifndef XpmReturnAllocPixels
3241 no_return_alloc_pixels
3243 ], HAVE_XPM=no, HAVE_XPM=yes)
3245 if test "${HAVE_XPM}" = "yes"; then
3253 if test "${HAVE_XPM}" = "yes"; then
3254 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3256 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3257 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3262 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3263 ### slightly different requirements wrt image libraries (it doesn't
3264 ### use -lXpm because it loads the xpm shared library dynamically at
3266 if test "${opsys}" = "mingw32"; then
3267 if test "${with_xpm}" != "no"; then
3268 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3272 if test "${HAVE_XPM}" = "yes"; then
3273 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3279 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3282 if test "${with_jpeg}" != "no"; then
3283 AC_CACHE_CHECK([for jpeglib 6b or later],
3286 for emacs_cv_jpeglib in yes -ljpeg no; do
3287 case $emacs_cv_jpeglib in
3290 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3294 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3295 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3296 #include <jpeglib.h>
3298 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3299 struct jpeg_decompress_struct cinfo;
3302 jpeg_create_decompress (&cinfo);
3303 WARNMS (&cinfo, JWRN_JPEG_EOF);
3304 jpeg_destroy_decompress (&cinfo);
3306 [emacs_link_ok=yes],
3309 test $emacs_link_ok = yes && break
3311 if test "$emacs_cv_jpeglib" != no; then
3313 AC_DEFINE([HAVE_JPEG], 1,
3314 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3315 ### mingw32 doesn't use -ljpeg, since it loads the library
3316 ### dynamically when needed, and doesn't want a run-time
3317 ### dependency on the jpeglib DLL.
3318 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3319 && LIBJPEG=$emacs_cv_jpeglib
3326 if test "${with_zlib}" != "no"; then
3328 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3330 case $ac_cv_search_inflateEnd in
3331 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3334 if test "${HAVE_ZLIB}" = "yes"; then
3335 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3336 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3337 if test "${opsys}" = "mingw32"; then
3343 ### Dynamic modules support
3348 if test "${with_modules}" != "no"; then
3349 if test "$opsys" = "gnu-linux"; then
3351 MODULES_SUFFIX=".so"
3353 elif test "$opsys" = "cygwin"; then
3354 MODULES_SUFFIX=".dll"
3356 elif test "$opsys" = "darwin"; then
3357 MODULES_SUFFIX=".so"
3359 elif test "$opsys" = "mingw32"; then
3360 MODULES_SUFFIX=".dll"
3363 # BSD system have dlopen in the libc
3364 AC_CHECK_FUNC(dlopen, [MODULES_SUFFIX=".so"]
3365 [HAVE_MODULES=yes], [])
3368 if test "${HAVE_MODULES}" = no; then
3369 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3372 LIBS="$LIBS $LIBMODULES"
3373 AC_CHECK_FUNCS([dladdr dlfunc])
3378 if test "${HAVE_MODULES}" = yes; then
3379 MODULES_OBJ="dynlib.o emacs-module.o"
3380 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3381 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3382 [System extension for dynamic libraries])
3384 AC_SUBST(MODULES_OBJ)
3385 AC_SUBST(LIBMODULES)
3387 ### Use -lpng if available, unless '--with-png=no'.
3391 if test "${NS_IMPL_COCOA}" = yes; then
3393 elif test "${with_png}" != no; then
3394 # mingw32 loads the library dynamically.
3395 if test "$opsys" = mingw32; then
3396 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3397 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3398 AC_MSG_CHECKING([for png])
3399 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3400 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3401 # libpng-config does not work; configure by hand.
3402 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3403 # in /usr/include/libpng.
3404 if test -r /usr/include/libpng/png.h &&
3405 test ! -r /usr/include/png.h; then
3406 png_cflags=-I/usr/include/libpng
3414 CFLAGS="$CFLAGS $png_cflags"
3415 LIBS="$png_libs -lz -lm $LIBS"
3417 [AC_LANG_PROGRAM([[#include <png.h>]],
3418 [[return !png_get_channels (0, 0);]])],
3420 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3422 # $LIBPNG requires explicit -lz in some cases.
3423 # We don't know what those cases are, exactly, so play it safe and
3424 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3425 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3426 LIBPNG="$LIBPNG -lz"
3430 AC_MSG_RESULT([$HAVE_PNG])
3433 if test $HAVE_PNG = yes; then
3434 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3437 CFLAGS="$CFLAGS $PNG_CFLAGS"
3438 AC_CHECK_DECL([png_longjmp],
3440 [AC_DEFINE([PNG_DEPSTRUCT], [],
3441 [Define to empty to suppress deprecation warnings when building
3442 with --enable-gcc-warnings and with libpng versions before 1.5,
3443 which lack png_longjmp.])],
3449 AC_SUBST(PNG_CFLAGS)
3451 ### Use -ltiff if available, unless '--with-tiff=no'.
3452 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3455 if test "${opsys}" = "mingw32"; then
3456 if test "${with_tiff}" != "no"; then
3457 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3459 if test "${HAVE_TIFF}" = "yes"; then
3460 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3462 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3463 if test "${with_tiff}" != "no"; then
3464 AC_CHECK_HEADER(tiffio.h,
3466 # At least one tiff package requires the jpeg library.
3467 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3468 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3471 if test "${HAVE_TIFF}" = "yes"; then
3472 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3473 dnl FIXME -lz -lm, as per libpng?
3479 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3480 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3483 if test "${opsys}" = "mingw32"; then
3484 if test "${with_gif}" != "no"; then
3485 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3487 if test "${HAVE_GIF}" = "yes"; then
3488 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3490 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3491 || test "${HAVE_W32}" = "yes"; then
3492 AC_CHECK_HEADER(gif_lib.h,
3493 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3494 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3495 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3496 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3498 if test "$HAVE_GIF" = yes; then
3500 elif test "$HAVE_GIF" = maybe; then
3501 # If gif_lib.h but no libgif, try libungif.
3502 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3503 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3506 if test "${HAVE_GIF}" = "yes"; then
3507 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3512 dnl Check for required libraries.
3513 if test "${HAVE_X11}" = "yes"; then
3516 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3517 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3518 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3519 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3520 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3521 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3522 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3523 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3524 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3525 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3527 if test "X${MISSING}" != X; then
3528 AC_MSG_ERROR([The following required libraries were not found:
3530 Maybe some development libraries/packages are missing?
3531 If you don't want to link with them give
3533 as options to configure])
3537 ### Use -lgpm if available, unless '--with-gpm=no'.
3540 if test "${with_gpm}" != "no"; then
3541 AC_CHECK_HEADER(gpm.h,
3542 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3544 if test "${HAVE_GPM}" = "yes"; then
3545 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3551 dnl Check for malloc/malloc.h on darwin
3552 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3555 ### Use NeXTstep API to implement GUI.
3556 if test "${HAVE_NS}" = "yes"; then
3557 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3558 if test "${NS_IMPL_COCOA}" = "yes"; then
3559 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3561 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3562 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3563 if test $NS_GNUSTEP_CONFIG != yes; then
3564 # See also .m.o rule in src/Makefile.in. */
3565 # FIXME: are all these flags really needed? Document here why. */
3566 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3567 ## Extra CFLAGS applied to src/*.m files.
3568 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3574 ### Use session management (-lSM -lICE) if available
3577 if test "${HAVE_X11}" = "yes"; then
3578 AC_CHECK_HEADER(X11/SM/SMlib.h,
3579 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3581 if test "${HAVE_X_SM}" = "yes"; then
3582 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3588 ### Use XRandr (-lXrandr) if available
3590 if test "${HAVE_X11}" = "yes"; then
3591 XRANDR_REQUIRED=1.2.2
3592 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3593 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3594 if test $HAVE_XRANDR = no; then
3595 # Test old way in case pkg-config doesn't have it (older machines).
3596 # Include Xrender.h by hand to work around bug in older Xrandr.h
3597 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3598 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3599 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3600 [], [AC_INCLUDES_DEFAULT
3601 #include <X11/extensions/Xrender.h>])
3602 if test $HAVE_XRANDR = yes; then
3603 XRANDR_LIBS=-lXrandr
3606 if test $HAVE_XRANDR = yes; then
3607 SAVE_CFLAGS="$CFLAGS"
3609 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3610 LIBS="$XRANDR_LIBS $LIBS"
3611 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3612 CFLAGS="$SAVE_CFLAGS"
3615 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3618 AC_SUBST(XRANDR_CFLAGS)
3619 AC_SUBST(XRANDR_LIBS)
3621 ### Use Xinerama (-lXinerama) if available
3623 if test "${HAVE_X11}" = "yes"; then
3624 XINERAMA_REQUIRED=1.0.2
3625 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3626 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3627 if test $HAVE_XINERAMA = no; then
3628 # Test old way in case pkg-config doesn't have it (older machines).
3629 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3630 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3631 if test $HAVE_XINERAMA = yes; then
3632 XINERAMA_LIBS=-lXinerama
3635 if test $HAVE_XINERAMA = yes; then
3636 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3639 AC_SUBST(XINERAMA_CFLAGS)
3640 AC_SUBST(XINERAMA_LIBS)
3642 ### Use Xfixes (-lXfixes) if available
3644 if test "${HAVE_X11}" = "yes"; then
3645 XFIXES_REQUIRED=4.0.0
3646 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3647 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3648 if test $HAVE_XFIXES = no; then
3649 # Test old way in case pkg-config doesn't have it (older machines).
3650 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3651 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3652 if test $HAVE_XFIXES = yes; then
3653 XFIXES_LIBS=-lXfixes
3656 if test $HAVE_XFIXES = yes; then
3657 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3660 AC_SUBST(XFIXES_CFLAGS)
3661 AC_SUBST(XFIXES_LIBS)
3663 ### Use libxml (-lxml2) if available
3664 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3666 if test "${with_xml2}" != "no"; then
3667 ### I'm not sure what the version number should be, so I just guessed.
3668 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3669 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3670 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3671 SAVE_CPPFLAGS="$CPPFLAGS"
3672 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3673 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3674 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3676 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3680 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3681 AC_CHECK_HEADER(libxml/HTMLparser.h,
3682 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3683 [#include <libxml/HTMLparser.h>])])
3684 CPPFLAGS="$SAVE_CPPFLAGS"
3685 if test "${HAVE_LIBXML2}" = "yes"; then
3686 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3687 LIBXML2_LIBS="-lxml2"
3690 if test "${HAVE_LIBXML2}" = "yes"; then
3691 if test "${opsys}" != "mingw32"; then
3692 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3697 if test "${HAVE_LIBXML2}" = "yes"; then
3698 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3705 AC_SUBST(LIBXML2_LIBS)
3706 AC_SUBST(LIBXML2_CFLAGS)
3708 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3709 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3710 if test "${opsys}" = "mingw32"; then
3711 emacs_cv_netdb_declares_h_errno=yes
3713 AC_CACHE_CHECK(whether netdb declares h_errno,
3714 emacs_cv_netdb_declares_h_errno,
3715 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3716 [[return h_errno;]])],
3717 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3718 if test $emacs_cv_netdb_declares_h_errno = yes; then
3719 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3722 # Check for mail-locking functions in a "mail" library. Probably this should
3723 # have the same check as for liblockfile below.
3724 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3725 if test $have_mail = yes; then
3727 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3730 LIBS="$LIBS_MAIL $LIBS"
3731 AC_CHECK_FUNCS(touchlock)
3736 dnl Debian, at least:
3737 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3738 if test $have_lockfile = yes; then
3739 LIBS_MAIL=-llockfile
3740 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3742 # If we have the shared liblockfile, assume we must use it for mail
3743 # locking (e.g. Debian). If we couldn't link against liblockfile
3744 # (no liblockfile.a installed), ensure that we don't need to.
3745 dnl This works for files generally, not just executables.
3746 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3747 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3748 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3749 if test $ac_cv_prog_liblockfile = yes; then
3750 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3751 This probably means that movemail could lose mail.
3752 There may be a 'development' package to install containing liblockfile.])
3755 AC_CHECK_HEADERS_ONCE(maillock.h)
3758 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3759 ## interlock access to the mail spool. The alternative is a lock file named
3760 ## /usr/spool/mail/$USER.lock.
3763 aix4-2) mail_lock="lockf" ;;
3765 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3767 ## On GNU/Linux systems, both methods are used by various mail programs.
3768 ## I assume most people are using newer mailers that have heard of flock.
3769 ## Change this if you need to.
3770 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3771 ## configure gets the right answers, and that means *NOT* using flock.
3772 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3773 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3774 ## Debian maintainer hasn't provided a clean fix for Emacs.
3775 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3776 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3777 ## correct logic. -- fx
3778 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3779 ## liblockfile is a Free Software replacement for libmail, used on
3780 ## Debian systems and elsewhere. -rfr.
3783 if test $have_mail = yes || test $have_lockfile = yes; then
3784 test $ac_cv_header_maillock_h = yes && mail_lock=no
3789 mail_lock="none-needed" ;;
3793 case "$mail_lock" in
3794 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3796 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3800 *) BLESSMAIL_TARGET="need-blessmail" ;;
3802 AC_SUBST(BLESSMAIL_TARGET)
3805 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3806 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3807 getrusage get_current_dir_name \
3808 lrand48 random rint \
3809 select getpagesize setlocale newlocale \
3810 getrlimit setrlimit shutdown getaddrinfo \
3811 pthread_sigmask strsignal setitimer \
3812 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3814 getpwent endpwent getgrent endgrent \
3815 cfmakeraw cfsetspeed copysign __executable_start log2)
3818 dnl No need to check for posix_memalign if aligned_alloc works.
3819 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3820 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3822 dnl Cannot use AC_CHECK_FUNCS
3823 AC_CACHE_CHECK([for __builtin_unwind_init],
3824 emacs_cv_func___builtin_unwind_init,
3825 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3826 emacs_cv_func___builtin_unwind_init=yes,
3827 emacs_cv_func___builtin_unwind_init=no)])
3828 if test $emacs_cv_func___builtin_unwind_init = yes; then
3829 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3830 [Define to 1 if you have the '__builtin_unwind_init' function.])
3833 AC_CHECK_HEADERS_ONCE(sys/un.h)
3838 AC_CHECK_FUNCS(grantpt)
3840 # PTY-related GNU extensions.
3841 AC_CHECK_FUNCS(getpt posix_openpt)
3843 # Check this now, so that we will NOT find the above functions in ncurses.
3844 # That is because we have not set up to link ncurses in lib-src.
3845 # It's better to believe a function is not available
3846 # than to expect to find it in ncurses.
3847 # Also we need tputs and friends to be able to build at all.
3848 AC_MSG_CHECKING([for library containing tputs])
3849 # Run a test program that contains a call to tputs, a call that is
3850 # never executed. This tests whether a pre-'main' dynamic linker
3851 # works with the library. It's too much trouble to actually call
3852 # tputs in the test program, due to portability hassles. When
3853 # cross-compiling, assume the test program will run if it links.
3854 AC_DEFUN([tputs_link_source], [
3856 [[extern void tputs (const char *, int, int (*)(int));
3857 int main (int argc, char **argv)
3860 tputs (argv[0], 0, 0);
3864 if test "${opsys}" = "mingw32"; then
3867 # Maybe curses should be tried earlier?
3868 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3869 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3871 if test -z "$tputs_library"; then
3875 LIBS_TERMCAP=-l$tputs_library
3877 LIBS="$LIBS_TERMCAP $LIBS"
3879 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3880 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3882 if test "X$msg" != Xno; then
3887 AC_MSG_RESULT([$msg])
3888 if test "X$msg" = Xno; then
3889 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3890 The following libraries were tried (in order):
3891 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3892 Please try installing whichever of these libraries is most appropriate
3893 for your system, together with its header files.
3894 For example, a libncurses-dev(el) or similar package.])
3897 ## Use termcap instead of terminfo?
3898 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3900 ## FIXME? In the cases below where we unconditionally set
3901 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3902 ## if that was found above to have tputs.
3903 ## Should we use the gnu* logic everywhere?
3905 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3906 ## The ncurses library has been moved out of the System framework in
3907 ## Mac OS X 10.2. So if configure detects it, set the command-line
3908 ## option to use it.
3909 darwin) LIBS_TERMCAP="-lncurses" ;;
3911 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3914 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3915 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3916 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3917 [[#if __FreeBSD_version < 400000
3920 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3922 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3924 if test $emacs_cv_freebsd_terminfo = yes; then
3925 LIBS_TERMCAP="-lncurses"
3928 LIBS_TERMCAP="-ltermcap"
3938 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3940 LIBS_TERMCAP="-ltermcap"
3944 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3946 ## hpux: Make sure we get select from libc rather than from libcurses
3947 ## because libcurses on HPUX 10.10 has a broken version of select.
3948 ## We used to use -lc -lcurses, but this may be cleaner.
3949 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3950 # set that way, now it uses the default). Isn't this a contradiction?
3951 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3955 TERMCAP_OBJ=tparam.o
3956 if test $TERMINFO = yes; then
3957 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3958 TERMCAP_OBJ=terminfo.o
3960 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3961 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3963 AC_SUBST(LIBS_TERMCAP)
3964 AC_SUBST(TERMCAP_OBJ)
3966 # GNU/Linux-specific timer functions.
3967 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3969 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3971 [[timerfd_create (CLOCK_REALTIME,
3972 TFD_CLOEXEC | TFD_NONBLOCK);
3973 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3974 [emacs_cv_have_timerfd=yes],
3975 [emacs_cv_have_timerfd=no])])
3976 if test "$emacs_cv_have_timerfd" = yes; then
3977 AC_DEFINE([HAVE_TIMERFD], 1,
3978 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3981 # Alternate stack for signal handlers.
3982 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3983 [emacs_cv_alternate_stack],
3985 [AC_LANG_PROGRAM([[#include <signal.h>
3988 struct sigaction sa;
3989 ss.ss_sp = malloc (SIGSTKSZ);
3990 ss.ss_size = SIGSTKSZ;
3991 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3992 sigaltstack (&ss, 0);
3993 sigaction (SIGSEGV, &sa, 0);]])],
3994 [emacs_cv_alternate_stack=yes],
3995 [emacs_cv_alternate_stack=no])])
3997 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3998 # On Darwin, res_init appears not to be useful: see bug#562 and
3999 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
4002 if test $opsys != darwin; then
4004 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
4005 #include <arpa/nameser.h>
4006 #include <resolv.h>]],
4007 [[return res_init();]])],
4008 have_res_init=yes, have_res_init=no)
4009 if test "$have_res_init" = no; then
4011 LIBS="$LIBS -lresolv"
4012 AC_MSG_CHECKING(for res_init with -lresolv)
4013 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
4014 #include <arpa/nameser.h>
4015 #include <resolv.h>]],
4016 [[return res_init();]])],
4017 have_res_init=yes, have_res_init=no)
4018 AC_MSG_RESULT($have_res_init)
4019 if test "$have_res_init" = yes ; then
4025 if test "$have_res_init" = yes; then
4026 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
4030 # Do we need the Hesiod library to provide the support routines?
4031 dnl FIXME? Should we be skipping this on Darwin too?
4033 if test "$with_hesiod" != no ; then
4034 # Don't set $LIBS here -- see comments above. FIXME which comments?
4035 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4036 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4037 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4038 if test "$resolv" = yes ; then
4043 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4044 hesiod=yes, :, $RESOLVLIB)])
4046 if test x"$hesiod" = xyes; then
4052 # Do we need libresolv (due to res_init or Hesiod)?
4053 if test "$resolv" = yes && test $opsys != darwin; then
4060 # These tell us which Kerberos-related libraries to use.
4067 if test "${with_kerberos}" != no; then
4069 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4070 if test $have_com_err = yes; then
4071 COM_ERRLIB=-lcom_err
4072 LIBS="$COM_ERRLIB $LIBS"
4074 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4075 if test $have_crypto = yes; then
4077 LIBS="$CRYPTOLIB $LIBS"
4079 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4080 if test $have_k5crypto = yes; then
4081 CRYPTOLIB=-lk5crypto
4082 LIBS="$CRYPTOLIB $LIBS"
4084 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4085 if test $have_krb5=yes; then
4087 LIBS="$KRB5LIB $LIBS"
4089 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4090 if test "${with_kerberos5}" = no; then
4091 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4092 if test $have_des425 = yes; then
4094 LIBS="$DESLIB $LIBS"
4096 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4097 if test $have_des = yes; then
4099 LIBS="$DESLIB $LIBS"
4102 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4103 if test $have_krb4 = yes; then
4105 LIBS="$KRB4LIB $LIBS"
4107 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4108 if test $have_krb = yes; then
4110 LIBS="$KRB4LIB $LIBS"
4115 if test "${with_kerberos5}" != no; then
4116 AC_CHECK_HEADERS(krb5.h,
4117 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4118 [#include <krb5.h>])])
4120 AC_CHECK_HEADERS(krb.h,,
4121 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4122 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4124 AC_CHECK_HEADERS(com_err.h)
4128 AC_SUBST(COM_ERRLIB)
4134 AC_CHECK_HEADERS(valgrind/valgrind.h)
4136 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4138 AC_CHECK_FUNCS_ONCE(tzset)
4141 AC_CHECK_FUNC(socket, , ok_so_far=no)
4142 if test $ok_so_far = yes; then
4143 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4145 if test $ok_so_far = yes; then
4146 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4148 if test $ok_so_far = yes; then
4149 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4150 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4151 [Define to 1 if you have inet sockets.])
4156 AC_CHECK_FUNCS(snprintf)
4158 dnl Check for glib. This differs from other library checks in that
4159 dnl Emacs need not link to glib unless some other library is already
4160 dnl linking to glib. Although glib provides no facilities that Emacs
4161 dnl needs for its own purposes, when glib is present Emacs needs to
4162 dnl use primitives like g_main_context_query to avoid clashing with
4163 dnl glib at a low level.
4165 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4169 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4170 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4171 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4172 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4173 AC_MSG_CHECKING([whether GLib is linked in])
4174 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4177 [[g_print ("Hello world");]])],
4180 AC_MSG_RESULT([$links_glib])
4181 if test "${links_glib}" = "yes"; then
4182 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4183 if test "$HAVE_NS" = no;then
4191 dnl Adapted from Haible's version.
4192 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4193 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4194 [[char* cs = nl_langinfo(CODESET);]])],
4195 emacs_cv_langinfo_codeset=yes,
4196 emacs_cv_langinfo_codeset=no)
4198 if test $emacs_cv_langinfo_codeset = yes; then
4199 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4200 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4205 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4206 dnl how the tty code is related to POSIX and/or other versions of termios.
4207 dnl The following looks like a useful start.
4209 dnl AC_SYS_POSIX_TERMIOS
4210 dnl if test $ac_cv_sys_posix_termios = yes; then
4211 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4212 dnl and macros for terminal control.])
4213 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4216 dnl Turned on June 1996 supposing nobody will mind it.
4217 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4218 if test "${opsys}" != "mingw32"; then
4219 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4220 in the full name stands for the login id.])
4223 dnl Everybody supports this, except MS.
4224 dnl Seems like the kind of thing we should be testing for, though.
4225 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4226 if test "${opsys}" != "mingw32"; then
4227 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4230 dnl Everybody supports this, except MS-DOS.
4231 dnl Seems like the kind of thing we should be testing for, though.
4232 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4233 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4234 4.2-compatible sockets.])
4236 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4238 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4239 a null file, or a data sink.])
4240 if test "${opsys}" = "mingw32"; then
4241 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4243 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4246 if test "${opsys}" = "mingw32"; then
4251 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4252 dnl This is for MinGW, and is used in test/Makefile.in.
4253 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4254 dnl decides that a command-line argument to be passed to a MinGW program
4255 dnl is a PATH-style list of directories. But that heuristics plays it
4256 dnl safe, and only does the replacement when it is _absolutely_ sure it
4257 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4258 dnl which breaks in-tree builds. So we do this manually instead.
4259 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4260 dnl be computed as ':' in MSYS Bash.
4263 dnl Everybody supports this, except MS-DOS.
4264 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4266 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4269 AC_DEFINE(DIRECTORY_SEP, ['/'],
4270 [Character that separates directories in a file name.])
4272 if test "${opsys}" = "mingw32"; then
4273 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4274 [Returns true if character is a device separator.])
4276 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4277 [Returns true if character is a directory separator.])
4279 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4280 [Returns true if character is any form of separator.])
4282 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4283 [Returns true if character is a device separator.])
4285 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4286 [Returns true if character is a directory separator.])
4288 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4289 [Returns true if character is any form of separator.])
4292 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4296 dnl Unfortunately without libXmu we cannot support EditRes.
4297 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4298 AC_DEFINE(NO_EDITRES, 1)
4303 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4304 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4305 AC_DEFINE(NO_EDITRES, 1)
4311 irix6-5 | sol2* | unixware )
4312 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4313 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4314 dnl need the constant to dimension an array. So wire in the appropriate
4316 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4320 emacs_broken_SIGIO=no
4323 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4324 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4325 hpux* | irix6-5 | nacl | openbsd | sol2* | unixware )
4326 emacs_broken_SIGIO=yes
4330 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4331 dnl the way this system works, libc functions that return malloced
4332 dnl memory use the libc malloc implementation. Calling xfree or
4333 dnl xrealloc on the results of such functions results in a crash.
4335 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4336 dnl but that does not currently work on this system.
4338 dnl It is possible to completely override the malloc implementation on
4339 dnl AIX, but that involves putting the malloc functions in a shared
4340 dnl library and setting the MALLOCTYPE environment variable to point to
4341 dnl that shared library.
4343 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4344 dnl to avoid a crash just use the Emacs implementation for that function.
4346 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4347 dnl of this file, so that we do not check for get_current_dir_name
4348 dnl on AIX. But that might be fragile if something else ends
4349 dnl up testing for get_current_dir_name as a dependency.
4350 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4351 get_current_dir_name should not be used.])
4355 dnl Circumvent a bug in FreeBSD. In the following sequence of
4356 dnl writes/reads on a PTY, read(2) returns bogus data:
4358 dnl write(2) 1022 bytes
4359 dnl write(2) 954 bytes, get EAGAIN
4360 dnl read(2) 1024 bytes in process_read_output
4361 dnl read(2) 11 bytes in process_read_output
4363 dnl That is, read(2) returns more bytes than have ever been written
4364 dnl successfully. The 1033 bytes read are the 1022 bytes written
4365 dnl successfully after processing (for example with CRs added if the
4366 dnl terminal is set up that way which it is here). The same bytes will
4367 dnl be seen again in a later read(2), without the CRs.
4368 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4369 work around an issue when reading from a PTY.])
4375 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4376 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4381 darwin | dragonfly | freebsd | netbsd | openbsd )
4382 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4383 close a pty to make it a controlling terminal (it is already a
4384 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4388 dnl FIXME Surely we can test for this rather than hard-code it.
4390 netbsd | openbsd) sound_device="/dev/audio" ;;
4391 *) sound_device="/dev/dsp" ;;
4395 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4396 [Name of the default sound device.])
4399 dnl Emacs can read input using SIGIO and buffering characters itself,
4400 dnl or using CBREAK mode and making C-g cause SIGINT.
4401 dnl The choice is controlled by the variable interrupt_input.
4403 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4405 dnl Emacs uses the presence of the USABLE_SIGIO macro
4406 dnl to indicate whether or not signal-driven I/O is possible. It uses
4407 dnl INTERRUPT_INPUT to decide whether to use it by default.
4409 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4410 dnl CBREAK mode has two disadvantages
4411 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4412 dnl I hear that in system V this problem does not exist.
4413 dnl 2) Control-G causes output to be discarded.
4414 dnl I do not know whether this can be fixed in system V.
4416 dnl Another method of doing input is planned but not implemented.
4417 dnl It would have Emacs fork off a separate process
4418 dnl to read the input and send it to the true Emacs process
4421 darwin | gnu-linux | gnu-kfreebsd )
4422 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4427 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4428 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4429 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4430 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4431 dnl taking float or double parameters.
4433 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4434 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4435 file defines 'NeedWidePrototypes' as 'NO'.])
4440 dnl Used in process.c, this must be a loop, even if it only runs once.
4441 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4442 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4443 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4444 dnl trying suffixes 0-16.
4445 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4446 first PTY, if PTYs are supported.])
4447 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4448 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4449 end of a PTY, if non-standard.])
4450 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4451 end of a PTY, if non-standard.])
4455 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4456 dnl You allocate a pty by opening /dev/ptc to get the master side.
4457 dnl To get the name of the slave side, you just ttyname() the master side.
4458 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4459 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4463 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4464 dnl multi-line AC_DEFINEs are hard. :(
4465 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)])
4466 AC_DEFINE(PTY_NAME_SPRINTF, [])
4467 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4471 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4474 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4476 if test "x$ac_cv_func_grantpt" = xyes; then
4477 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4478 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4479 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4480 dnl to prevent sigchld_handler from intercepting the child's death.
4481 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); }])
4482 dnl if HAVE_POSIX_OPENPT
4483 if test "x$ac_cv_func_posix_openpt" = xyes; then
4484 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4485 AC_DEFINE(PTY_NAME_SPRINTF, [])
4487 elif test "x$ac_cv_func_getpt" = xyes; then
4488 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4489 AC_DEFINE(PTY_NAME_SPRINTF, [])
4491 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4494 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4499 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4500 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4501 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4505 dnl It looks like this cannot be right, because it is not a loop.
4506 dnl However, process.c actually does this:
4512 dnl which presumably makes it OK, since irix == sgi (?).
4513 dnl FIXME it seems like this special treatment is unnecessary?
4514 dnl Why can't irix use a single-trip loop like eg cygwin?
4515 AC_DEFINE(PTY_ITERATION, [])
4516 dnl Not used, because PTY_ITERATION is defined.
4517 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4518 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); }])
4519 dnl No need to get the pty name at all.
4520 AC_DEFINE(PTY_NAME_SPRINTF, [])
4521 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4522 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4526 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4527 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4528 dnl from intercepting that death. If any child but grantpt's should die
4529 dnl within, it should be caught after sigrelse(2).
4530 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4531 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); }])
4535 dnl Comments are as per sol2*.
4536 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4537 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); }])
4544 dnl This change means that we don't loop through allocate_pty too
4545 dnl many times in the (rare) event of a failure.
4546 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4547 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4548 dnl Push various streams modules onto a PTY channel. Used in process.c.
4549 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.])
4554 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4555 "typing" a signal character on the pty.])
4558 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4559 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4560 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4561 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4564 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4565 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4566 gnu-linux | gnu-kfreebsd )
4568 AC_MSG_CHECKING([for signals via characters])
4569 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4570 #include <linux/version.h>
4571 #if LINUX_VERSION_CODE < 0x20400
4572 # error "Linux version too old"
4574 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4576 AC_MSG_RESULT([$emacs_signals_via_chars])
4577 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4582 AH_TEMPLATE(TAB3, [Undocumented.])
4585 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4587 gnu | dragonfly | freebsd | netbsd | openbsd )
4588 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4589 AC_DEFINE(TAB3, OXTABS)
4592 gnu-linux | gnu-kfreebsd )
4593 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4597 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4598 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4599 [Mark a secondary stack, like the register stack on the ia64.]), [])
4603 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4604 run_time_remap; for HPUX.])
4609 dnl This won't be used automatically yet. We also need to know, at least,
4610 dnl that the stack is continuous.
4611 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4612 registers relevant for conservative garbage collection in the jmp_buf.])
4616 dnl Not all the architectures are tested, but there are Debian packages
4617 dnl for SCM and/or Guile on them, so the technique must work. See also
4618 dnl comments in alloc.c concerning setjmp and gcc.
4619 dnl Fixme: it's probably safe to just use the GCC conditional below.
4620 gnu-linux | gnu-kfreebsd )
4621 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4622 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4623 || defined __alpha__ || defined __mips__ || defined __s390__ \
4624 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4625 || defined __ia64__ || defined __sh__
4628 # error "setjmp not known to work on this arch"
4630 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4635 if test x$GCC = xyes; then
4636 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4637 AC_DEFINE(GC_SETJMP_WORKS, 1)
4640 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4641 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4642 AC_DEFINE(GC_SETJMP_WORKS, 1)
4647 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4648 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4651 [[#include <setjmp.h>
4653 # define _longjmp longjmp
4658 _longjmp (j, 1);]])],
4659 [emacs_cv_func__setjmp=yes],
4660 [emacs_cv_func__setjmp=no])])
4661 if test $emacs_cv_func__setjmp = yes; then
4662 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4665 # We need to preserve signal mask to handle C stack overflows.
4666 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4669 [[#include <setjmp.h>
4672 if (! sigsetjmp (j, 1))
4673 siglongjmp (j, 1);]])],
4674 [emacs_cv_func_sigsetjmp=yes],
4675 [emacs_cv_func_sigsetjmp=no])])
4676 if test $emacs_cv_func_sigsetjmp = yes; then
4677 AC_DEFINE([HAVE_SIGSETJMP], 1,
4678 [Define to 1 if sigsetjmp and siglongjmp work.])
4681 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4682 yes,yes,* | *,*,mingw32)
4683 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4684 [Define to 1 if C stack overflow can be handled in some cases.]);;
4689 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4690 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4691 dnl and this is all we need.
4692 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4699 dnl Used in xfaces.c.
4700 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4701 some systems, where it requires time.h.])
4706 dnl Define symbols to identify the version of Unix this is.
4707 dnl Define all the symbols that apply correctly.
4708 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4709 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4710 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4711 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4716 dnl This symbol should be defined on AIX Version 3 ???????
4717 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4719 # error "_AIX not defined"
4721 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4725 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4729 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4730 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4731 dnl distinguish OS X from pure Darwin.
4732 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4735 gnu-linux | gnu-kfreebsd )
4737 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4742 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4747 AC_DEFINE(USG5_4, [])
4748 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4752 AC_DEFINE(DOS_NT, [])
4753 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4754 if test "x$ac_enable_checking" != "x" ; then
4755 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4761 AC_DEFINE(USG5_4, [])
4762 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4767 AC_DEFINE(USG5_4, [])
4771 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4774 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4775 emacs_cv_usable_FIONREAD=no
4779 emacs_cv_usable_FIONREAD=yes
4784 [AC_LANG_PROGRAM([[#include <sys/types.h>
4785 #include <sys/ioctl.h>
4787 # include <sys/filio.h>
4790 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4791 [emacs_cv_usable_FIONREAD=yes],
4792 [emacs_cv_usable_FIONREAD=no])
4795 if test $emacs_cv_usable_FIONREAD = yes; then
4796 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4798 if test $emacs_broken_SIGIO = no; then
4799 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4801 [AC_LANG_PROGRAM([[#include <fcntl.h>
4804 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4805 [emacs_cv_usable_SIGIO=yes],
4806 [emacs_cv_usable_SIGIO=no])],
4807 [emacs_cv_usable_SIGIO=yes],
4808 [emacs_cv_usable_SIGIO=no])
4809 if test $emacs_cv_usable_SIGIO = yes; then
4810 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4817 dnl It works to open the pty's tty in the parent (Emacs), then
4818 dnl close and reopen it in the child.
4819 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4820 works to open a pty's tty in the parent process, then close and
4821 reopen it in the child.])
4825 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4826 use VSUSP instead of VSWTCH.])
4830 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4835 # Set up the CFLAGS for real compilation, so we can substitute it.
4836 CFLAGS="$REAL_CFLAGS"
4837 CPPFLAGS="$REAL_CPPFLAGS"
4840 ## Hack to detect a buggy GCC version.
4841 if test "$GCC" = yes && \
4842 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4844 *-fno-optimize-sibling-calls*) ;;
4846 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4850 version=$PACKAGE_VERSION
4852 copyright="Copyright (C) 2016 Free Software Foundation, Inc."
4853 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4854 [Short copyright string for this version of Emacs.])
4857 ### Specify what sort of things we'll be editing into Makefile and config.h.
4858 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4860 AC_SUBST(configuration)
4865 AC_SUBST(exec_prefix)
4868 AC_SUBST(sharedstatedir)
4869 AC_SUBST(libexecdir)
4873 AC_SUBST(standardlisppath)
4874 AC_SUBST(locallisppath)
4876 AC_SUBST(x_default_search_path)
4878 AC_SUBST(archlibdir)
4884 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4885 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4886 ## end of LIBX_BASE, but nothing ever set it.
4887 AC_SUBST(LD_SWITCH_X_SITE)
4888 AC_SUBST(C_SWITCH_X_SITE)
4889 AC_SUBST(GNUSTEP_CFLAGS)
4891 ## Used in lwlib/Makefile.in.
4892 AC_SUBST(X_TOOLKIT_TYPE)
4894 AC_SUBST(ns_appbindir)
4895 AC_SUBST(ns_appresdir)
4897 AC_SUBST(GNU_OBJC_CFLAGS)
4898 AC_SUBST(OTHER_FILES)
4900 if test -n "${term_header}"; then
4901 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4902 [Define to the header for the built-in window system.])
4905 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4906 [Define to the canonical Emacs configuration name.])
4907 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4908 [Define to the options passed to configure.])
4909 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4910 define this to include extra configuration information.])
4914 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4921 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4922 AC_DEFINE(HAVE_X_WINDOWS, 1,
4923 [Define to 1 if you want to use the X window system.])
4925 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4927 if test "$HAVE_CAIRO" = "yes"; then
4928 FONT_OBJ="ftfont.o ftcrfont.o"
4929 elif test "$HAVE_XFT" = "yes"; then
4930 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4931 elif test "$HAVE_FREETYPE" = "yes"; then
4932 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4942 if test "${USE_X_TOOLKIT}" != "none" ; then
4944 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4945 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4946 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4947 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4948 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4952 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4953 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4957 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4958 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4959 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4963 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4964 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4967 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4970 AC_SUBST(WIDGET_OBJ)
4973 case "$USE_X_TOOLKIT" in
4974 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4975 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4976 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4978 if test "$HAVE_XWIDGETS" = "yes"; then
4979 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
4981 AC_SUBST(TOOLKIT_LIBW)
4983 if test "${opsys}" != "mingw32"; then
4984 if test "$USE_X_TOOLKIT" = "none"; then
4985 LIBXT_OTHER="\$(LIBXSM)"
4987 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4990 AC_SUBST(LIBXT_OTHER)
4992 if test "${HAVE_X11}" = "yes" ; then
4993 AC_DEFINE(HAVE_X11, 1,
4994 [Define to 1 if you want to use version 11 of X windows.])
4995 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4999 AC_SUBST(LIBX_OTHER)
5001 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5003 elif test "$USE_X_TOOLKIT" = none; then
5004 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5006 LIBXMENU='$(lwlibdir)/liblw.a'
5010 AC_CACHE_CHECK([for struct alignment],
5011 [emacs_cv_struct_alignment],
5013 [AC_LANG_PROGRAM([[#include <stddef.h>
5014 struct __attribute__ ((aligned (8))) s { char c; };
5015 struct t { char c; struct s s; };
5016 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5018 [emacs_cv_struct_alignment=yes],
5019 [emacs_cv_struct_alignment=no])])
5020 if test "$emacs_cv_struct_alignment" = yes; then
5021 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5022 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5023 structure to an N-byte boundary.])
5026 if test "${GNU_MALLOC}" = "yes" ; then
5027 AC_DEFINE(GNU_MALLOC, 1,
5028 [Define to 1 if you want to use the GNU memory allocator.])
5032 if test "${REL_ALLOC}" = "yes" ; then
5033 AC_DEFINE(REL_ALLOC, 1,
5034 [Define REL_ALLOC if you want to use the relocating allocator for
5037 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5039 AC_SUBST(RALLOC_OBJ)
5041 if test "$opsys" = "cygwin"; then
5042 CYGWIN_OBJ="cygw32.o"
5043 ## Cygwin differs because of its unexec().
5045 POST_ALLOC_OBJ=lastfile.o
5046 elif test "$opsys" = "mingw32"; then
5049 POST_ALLOC_OBJ=lastfile.o
5052 PRE_ALLOC_OBJ=lastfile.o
5055 AC_SUBST(CYGWIN_OBJ)
5056 AC_SUBST(PRE_ALLOC_OBJ)
5057 AC_SUBST(POST_ALLOC_OBJ)
5059 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5060 dnl verbatim defined above. The tricky name is apropos, as this hack
5061 dnl makes Fortify go sour!
5062 AH_VERBATIM([FORTIFY_SOUR],
5063 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5064 The workaround disables some useful run-time checking, so it
5065 should be conditional to the platforms with the performance bug.
5066 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5067 #if defined __APPLE__ && defined __GNUC__
5068 # ifndef _DONT_USE_CTYPE_INLINE_
5069 # define _DONT_USE_CTYPE_INLINE_
5071 # ifndef _FORTIFY_SOURCE
5072 # define _FORTIFY_SOURCE 0
5077 # If user asks to omit features, disable optional features that gnulib
5078 # might otherwise enable.
5079 if test "$with_features" = no && test "$enable_acl" != yes; then
5083 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5084 # it temporarily reverts them to their pre-pkg-config values,
5085 # because gnulib needs to work with both src (which uses the
5086 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5087 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5088 # and it therefore needs to run in an environment where LIBS does not
5089 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5090 # for some package unrelated to lib-src.
5093 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5094 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5095 gl_ASSERT_NO_GNULIB_POSIXCHECK
5096 gl_ASSERT_NO_GNULIB_TESTS
5101 if test "${opsys}" = "mingw32"; then
5102 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5103 # Remove unneeded switches from the value of CC that goes to Makefiles
5104 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5108 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5110 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5113 ## The -headerpad option tells ld (see man page) to leave room at the
5114 ## end of the header for adding load commands. Needed for dumping.
5115 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5116 ## architecture (where they are 78 bytes each). The actual number of
5117 ## load commands added is not consistent but normally ranges from
5118 ## about 14 to about 34. Setting it high gets us plenty of slop and
5119 ## only costs about 1.5K of wasted binary space.
5120 headerpad_extra=1000
5121 if test "$HAVE_NS" = "yes"; then
5122 libs_nsgui="-framework AppKit"
5123 if test "$NS_IMPL_COCOA" = "yes"; then
5124 libs_nsgui="$libs_nsgui -framework IOKit"
5129 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5131 ## This is here because src/Makefile.in did some extra fiddling around
5132 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5133 ## LD_SWITCH_SYSTEM_TEMACS instead,
5134 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5135 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5138 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5139 ## find X at run-time.
5140 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5141 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5142 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5143 ## had different values in configure (in ac_link) and src/Makefile.in.
5144 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5145 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5148 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5149 case "$canonical" in
5150 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5151 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5155 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5158 # -nopie fixes a temacs segfault on Gentoo, OpenBSD, and other systems
5159 # with "hardened" GCC configurations for some reason (Bug#18784).
5160 # We don't know why -nopie works, but not segfaulting is better than
5161 # segfaulting. Use ac_c_werror_flag=yes when trying -nopie, otherwise
5162 # clang keeps warning that it does not understand -nopie, and pre-4.6
5163 # GCC has a similar problem (Bug#20338).
5164 AC_CACHE_CHECK([whether $CC accepts -nopie],
5165 [emacs_cv_prog_cc_nopie],
5166 [emacs_save_c_werror_flag=$ac_c_werror_flag
5167 emacs_save_LDFLAGS=$LDFLAGS
5168 ac_c_werror_flag=yes
5169 LDFLAGS="$LDFLAGS -nopie"
5170 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
5171 [emacs_cv_prog_cc_nopie=yes],
5172 [emacs_cv_prog_cc_nopie=no])
5173 ac_c_werror_flag=$emacs_save_c_werror_flag
5174 LDFLAGS=$emacs_save_LDFLAGS])
5175 if test "$emacs_cv_prog_cc_nopie" = yes; then
5176 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie"
5179 if test x$ac_enable_profiling != x ; then
5181 *freebsd | gnu-linux) ;;
5182 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5186 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5188 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5190 ## Common for all window systems
5191 if test "$window_system" != "none"; then
5192 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5193 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5194 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5197 AC_SUBST(WINDOW_SYSTEM_OBJ)
5199 AH_TOP([/* GNU Emacs site configuration template file.
5201 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2016
5202 Free Software Foundation, Inc.
5204 This file is part of GNU Emacs.
5206 GNU Emacs is free software: you can redistribute it and/or modify
5207 it under the terms of the GNU General Public License as published by
5208 the Free Software Foundation, either version 3 of the License, or
5209 (at your option) any later version.
5211 GNU Emacs is distributed in the hope that it will be useful,
5212 but WITHOUT ANY WARRANTY; without even the implied warranty of
5213 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5214 GNU General Public License for more details.
5216 You should have received a copy of the GNU General Public License
5217 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5220 /* No code in Emacs #includes config.h twice, but some bits of code
5221 intended to work with other packages as well (like gmalloc.c)
5222 think they can include it as many times as they like. */
5223 #ifndef EMACS_CONFIG_H
5224 #define EMACS_CONFIG_H
5227 AH_BOTTOM([#include <conf_post.h>
5229 #endif /* EMACS_CONFIG_H */
5238 #### Report on what we decided to do.
5239 #### Report GTK as a toolkit, even if it doesn't use Xt.
5240 #### It makes printing result more understandable as using GTK sets
5241 #### toolkit_scroll_bars to yes by default.
5242 if test "${HAVE_GTK}" = "yes"; then
5243 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5246 if test $USE_ACL -ne 0; then
5247 ACL_SUMMARY="yes $LIB_ACL"
5252 emacs_standard_dirs='Standard dirs'
5254 Configured for '${canonical}'.
5256 Where should the build process find the source code? ${srcdir}
5257 What compiler should emacs be built with? ${CC} ${CFLAGS}
5258 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5259 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5260 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5261 What window system should Emacs use? ${window_system}
5262 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5263 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5264 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5267 emacs_config_features=
5268 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5269 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5270 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5274 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5275 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5276 *) eval val=\${HAVE_$opt} ;;
5279 xno|xnone|x) continue ;;
5284 GTK*|LUCID|MOTIF) opt=$val ;;
5289 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5292 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5293 [Summary of some of the main features enabled by configure.])
5295 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5296 Does Emacs use -lXpm? ${HAVE_XPM}
5297 Does Emacs use -ljpeg? ${HAVE_JPEG}
5298 Does Emacs use -ltiff? ${HAVE_TIFF}
5299 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5300 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5301 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5302 Does Emacs use cairo? ${HAVE_CAIRO}
5303 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5304 Does Emacs support sound? ${HAVE_SOUND}
5305 Does Emacs use -lgpm? ${HAVE_GPM}
5306 Does Emacs use -ldbus? ${HAVE_DBUS}
5307 Does Emacs use -lgconf? ${HAVE_GCONF}
5308 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5309 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5310 Does Emacs use access control lists? ${ACL_SUMMARY}
5311 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5312 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5313 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5314 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5315 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5316 Does Emacs use -lotf? ${HAVE_LIBOTF}
5317 Does Emacs use -lxft? ${HAVE_XFT}
5318 Does Emacs directly use zlib? ${HAVE_ZLIB}
5319 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5320 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5321 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5324 if test -n "${EMACSDATA}"; then
5325 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5327 if test -n "${EMACSDOC}"; then
5328 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5333 if test "$HAVE_NS" = "yes"; then
5335 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5336 The installed application will go to nextstep/Emacs.app and can be
5337 run or moved from there."])
5338 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5339 echo "The application will be fully self-contained."
5341 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5342 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5343 to run if these resources are not installed."])
5348 if test "${opsys}" = "cygwin"; then
5350 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5356 # Remove any trailing slashes in these variables.
5358 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5360 case $exec_prefix in
5361 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5364 if test "$HAVE_NS" = "yes"; then
5365 if test "$NS_IMPL_GNUSTEP" = yes; then
5366 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5367 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5368 ns_check_file=Resources/Info-gnustep.plist
5370 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5371 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5372 ns_check_file=Contents/Info.plist
5374 AC_SUBST(ns_check_file)
5377 dnl config.status treats $srcdir specially, so I think this is ok...
5378 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5380 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5381 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5382 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5383 dnl (else you get "no 'Makefile.am' found for any configure output").
5384 dnl This will work, but you get a config.status that is not quite right
5385 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5386 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5387 dnl it seems better to just live with the duplication.
5388 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5390 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5391 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5392 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5393 leim/Makefile nextstep/Makefile nt/Makefile])
5395 dnl test/ is not present in release tarfiles.
5396 opt_makefile=test/Makefile
5398 if test -f "$srcdir/$opt_makefile.in"; then
5399 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5400 dnl Again, it's best not to use a variable. Though you can add
5401 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5402 AC_CONFIG_FILES([test/Makefile])
5406 dnl The admin/ directory used to be excluded from tarfiles.
5407 if test -d $srcdir/admin; then
5408 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5409 AC_CONFIG_FILES([admin/charsets/Makefile])
5410 AC_CONFIG_FILES([admin/unidata/Makefile])
5411 AC_CONFIG_FILES([admin/grammars/Makefile])
5415 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5417 AC_SUBST(SUBDIR_MAKEFILES_IN)
5419 dnl You might wonder (I did) why epaths.h is generated by running make,
5420 dnl rather than just letting configure generate it from epaths.in.
5421 dnl One reason is that the various paths are not fully expanded (see above);
5422 dnl eg gamedir=${prefix}/var/games/emacs.
5423 dnl Secondly, the GNU Coding standards require that one should be able
5424 dnl to run 'make prefix=/some/where/else' and override the values set
5425 dnl by configure. This also explains the 'move-if-change' test and
5426 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5427 AC_CONFIG_COMMANDS([src/epaths.h], [
5428 if test "${opsys}" = "mingw32"; then
5429 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5431 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5432 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5433 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5435 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5436 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5438 AC_CONFIG_COMMANDS([src/.gdbinit], [
5439 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5440 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5444 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5445 dnl See comments for etc-refcards-emacsver.tex.
5446 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5447 dnl it is not quite the same. But we are generating in $srcdir.
5448 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5449 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5450 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5453 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5454 dnl then a directory etc/refcards is created in the build directory,
5455 dnl which is probably harmless, but confusing (in out-of-tree builds).
5456 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5457 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5458 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5459 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5460 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5465 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])