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 $LIBS"
2417 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2424 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2425 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2426 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2427 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2428 GETADDRINFO_A_LIBS="-lanl"
2429 AC_SUBST(GETADDRINFO_A_LIBS)
2434 gtk_term_header=$term_header
2437 if test "${opsys}" != "mingw32"; then
2438 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2441 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2443 dnl Checks for libraries.
2444 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2445 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2446 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2447 AC_MSG_ERROR($GTK_PKG_ERRORS)
2449 if test "$pkg_check_gtk" = "yes"; then
2450 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2451 GTK_OBJ=emacsgtkfixed.o
2452 gtk_term_header=gtkutil.h
2453 USE_GTK_TOOLKIT="GTK3"
2454 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2455 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2456 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2457 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2458 [Define to 1 to disable Glib deprecation warnings.])
2462 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2466 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2469 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2471 dnl Checks for libraries.
2472 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2473 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2474 if test "$pkg_check_gtk" = "no" &&
2475 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2477 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2479 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2486 if test x"$pkg_check_gtk" = xyes; then
2489 CFLAGS="$CFLAGS $GTK_CFLAGS"
2490 LIBS="$GTK_LIBS $LIBS"
2491 dnl Try to compile a simple GTK program.
2492 AC_MSG_CHECKING([whether GTK compiles])
2496 [[/* Check the Gtk and Glib APIs. */
2497 #include <gtk/gtk.h>
2498 #include <glib-object.h>
2500 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2504 GtkSettings *gs = 0;
2505 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2506 strict C prohibits this. Use gtk_main_iteration to test that the
2507 libraries are there. */
2508 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2509 0, 0, 0, G_CALLBACK (callback), 0))
2510 gtk_main_iteration ();
2513 AC_MSG_RESULT([$GTK_COMPILES])
2514 if test "${GTK_COMPILES}" != "yes"; then
2516 if test "$USE_X_TOOLKIT" != "maybe"; then
2517 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2520 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2522 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2523 GTK_OBJ="gtkutil.o $GTK_OBJ"
2524 term_header=$gtk_term_header
2526 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2527 closing open displays. This is no problem if you just use
2528 one display, but if you use more than one and close one of them
2530 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2538 if test "${HAVE_GTK}" = "yes"; then
2540 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2541 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2542 if test "$with_toolkit_scroll_bars" != no; then
2543 with_toolkit_scroll_bars=yes
2546 dnl Check if we have the old file selection dialog declared and
2547 dnl in the link library. In 2.x it may be in the library,
2548 dnl but not declared if deprecated featured has been selected out.
2549 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2550 HAVE_GTK_FILE_SELECTION=no
2551 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2552 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2553 #include <gtk/gtk.h>])
2554 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2555 AC_CHECK_FUNCS(gtk_file_selection_new)
2558 dnl Same as above for gtk_handle_box.
2559 HAVE_GTK_HANDLE_BOX=no
2560 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2561 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2562 #include <gtk/gtk.h>])
2563 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2564 AC_CHECK_FUNCS(gtk_handle_box_new)
2567 dnl Same as above for gtk_tearoff_menu_item.
2568 HAVE_GTK_TEAROFF_MENU_ITEM=no
2569 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2570 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2571 #include <gtk/gtk.h>])
2572 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2573 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2576 dnl Check for functions introduced in 2.14 and later.
2577 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2578 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2579 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2580 gtk_orientable_set_orientation \
2581 gtk_window_set_has_resize_grip)
2583 term_header=gtkutil.h
2587 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2590 if test "$with_xwidgets" != "no"; then
2591 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2592 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2594 WEBKIT_REQUIRED=1.4.0
2595 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2596 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2597 HAVE_XWIDGETS=$HAVE_WEBKIT
2598 test $HAVE_XWIDGETS = yes ||
2599 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2601 XWIDGETS_OBJ=xwidget.o
2602 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2604 AC_SUBST(XWIDGETS_OBJ)
2609 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2610 dnl other platforms.
2613 if test "${with_dbus}" = "yes"; then
2614 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2615 if test "$HAVE_DBUS" = yes; then
2616 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2617 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2618 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2621 LIBS="$LIBS $DBUS_LIBS"
2622 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2623 dbus_type_is_valid \
2624 dbus_validate_bus_name \
2625 dbus_validate_path \
2626 dbus_validate_interface \
2627 dbus_validate_member)
2632 AC_SUBST(DBUS_CFLAGS)
2636 dnl GSettings has been tested under GNU/Linux only.
2638 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2639 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2640 if test "$HAVE_GSETTINGS" = "yes"; then
2642 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2644 LIBS="$LIBS $GSETTINGS_LIBS"
2645 AC_MSG_CHECKING([whether GSettings is in gio])
2648 [[/* Check that gsettings really is present. */
2649 #include <glib-object.h>
2650 #include <gio/gio.h>
2653 GSettings *settings;
2654 GVariant *val = g_settings_get_value (settings, "");
2656 [], HAVE_GSETTINGS=no)
2657 AC_MSG_RESULT([$HAVE_GSETTINGS])
2659 if test "$HAVE_GSETTINGS" = "yes"; then
2660 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2661 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2662 SETTINGS_LIBS="$GSETTINGS_LIBS"
2669 dnl GConf has been tested under GNU/Linux only.
2670 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2672 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2673 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2674 if test "$HAVE_GCONF" = yes; then
2675 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2676 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2677 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2678 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2682 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2683 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2684 if test "$HAVE_GOBJECT" = "yes"; then
2685 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2686 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2688 SAVE_CFLAGS="$CFLAGS"
2690 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2691 LIBS="$SETTINGS_LIBS $LIBS"
2692 CFLAGS="$SAVE_CFLAGS"
2695 AC_SUBST(SETTINGS_CFLAGS)
2696 AC_SUBST(SETTINGS_LIBS)
2699 dnl SELinux is available for GNU/Linux only.
2702 if test "${with_selinux}" = "yes"; then
2703 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2704 if test "$HAVE_LIBSELINUX" = yes; then
2705 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2706 LIBSELINUX_LIBS=-lselinux
2709 AC_SUBST(LIBSELINUX_LIBS)
2712 if test "${with_gnutls}" = "yes" ; then
2713 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2714 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2715 if test "${HAVE_GNUTLS}" = "yes"; then
2716 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2717 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2718 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2721 # Windows loads GnuTLS dynamically
2722 if test "${opsys}" = "mingw32"; then
2727 AC_SUBST(LIBGNUTLS_LIBS)
2728 AC_SUBST(LIBGNUTLS_CFLAGS)
2733 dnl MS Windows native file monitor is available for mingw32 only.
2734 case $with_file_notification,$opsys in
2736 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2737 this is only supported on MS-Windows native and MinGW32 builds.
2738 Consider using gfile instead.])
2740 w32,* | yes,mingw32)
2741 AC_CHECK_HEADER(windows.h)
2742 if test "$ac_cv_header_windows_h" = yes ; then
2743 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2744 NOTIFY_OBJ=w32notify.o
2745 NOTIFY_SUMMARY="yes (w32)"
2749 dnl inotify is available only on GNU/Linux.
2750 case $with_file_notification,$NOTIFY_OBJ in
2752 AC_CHECK_HEADER(sys/inotify.h)
2753 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2754 AC_CHECK_FUNC(inotify_init1)
2755 if test "$ac_cv_func_inotify_init1" = yes; then
2756 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2757 NOTIFY_OBJ=inotify.o
2758 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2763 dnl kqueue is available on BSD-like systems.
2764 case $with_file_notification,$NOTIFY_OBJ in
2766 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2767 if test "$HAVE_KQUEUE" = "yes"; then
2768 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2769 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2770 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2771 NOTIFY_LIBS=$KQUEUE_LIBS
2773 NOTIFY_SUMMARY="yes -lkqueue"
2775 AC_SEARCH_LIBS(kqueue, [])
2776 if test "$ac_cv_search_kqueue" != no; then
2777 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2779 NOTIFY_SUMMARY="yes (kqueue)"
2784 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2785 dnl has been added in glib 2.24. It has been tested under
2787 case $with_file_notification,$NOTIFY_OBJ in
2789 if test "${HAVE_NS}" = yes; then
2790 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2791 Consider kqueue instead.])
2793 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2794 if test "$HAVE_GFILENOTIFY" = "yes"; then
2795 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2796 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2797 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2798 NOTIFY_OBJ=gfilenotify.o
2799 NOTIFY_SUMMARY="yes -lgio (gfile)"
2804 case $with_file_notification,$NOTIFY_OBJ in
2805 yes,* | no,* | *,?*) ;;
2806 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2809 if test -n "$NOTIFY_OBJ"; then
2810 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2812 AC_SUBST(NOTIFY_CFLAGS)
2813 AC_SUBST(NOTIFY_LIBS)
2814 AC_SUBST(NOTIFY_OBJ)
2816 dnl Do not put whitespace before the #include statements below.
2817 dnl Older compilers (eg sunos4 cc) choke on it.
2820 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2821 if test "$with_xaw3d" != no; then
2822 AC_CACHE_VAL(emacs_cv_xaw3d,
2823 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2824 #include <X11/Intrinsic.h>
2825 #include <X11/Xaw3d/Simple.h>]],
2827 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2828 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2829 emacs_cv_xaw3d=no)])
2833 if test $emacs_cv_xaw3d = yes; then
2834 AC_MSG_CHECKING(for xaw3d)
2835 AC_MSG_RESULT([yes; using Lucid toolkit])
2839 AC_DEFINE(HAVE_XAW3D, 1,
2840 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2842 AC_MSG_CHECKING(for xaw3d)
2844 AC_MSG_CHECKING(for libXaw)
2845 AC_CACHE_VAL(emacs_cv_xaw,
2846 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2847 #include <X11/Intrinsic.h>
2848 #include <X11/Xaw/Simple.h>]],
2852 if test $emacs_cv_xaw = yes; then
2853 AC_MSG_RESULT([yes; using Lucid toolkit])
2856 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2857 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2859 AC_MSG_ERROR([No X toolkit could be found.
2860 If you are sure you want Emacs compiled without an X toolkit, pass
2862 to configure. Otherwise, install the development libraries for the toolkit
2863 that you want to use (e.g. Gtk+) and re-run configure.])
2868 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2872 if test "${USE_X_TOOLKIT}" != "none"; then
2873 AC_MSG_CHECKING(X11 toolkit version)
2874 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2875 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2876 [[#if XtSpecificationRelease < 6
2879 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2880 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2881 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2882 AC_MSG_RESULT(6 or newer)
2883 AC_DEFINE(HAVE_X11XTR6, 1,
2884 [Define to 1 if you have the X11R6 or newer version of Xt.])
2885 LIBXTR6="-lSM -lICE"
2887 ## Use libw.a along with X11R6 Xt.
2888 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2891 AC_MSG_RESULT(before 6)
2894 dnl If using toolkit, check whether libXmu.a exists.
2895 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2897 if test x$HAVE_X11XTR6 = xyes; then
2898 OTHERLIBS='-lXt -lSM -lICE'
2902 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2903 if test "X$LIBS" != "X$OLDLIBS"; then
2904 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2907 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2913 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2914 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2915 if test -d /usr/include/openmotif; then
2916 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2917 emacs_cv_openmotif=yes
2918 case "$canonical" in
2919 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2920 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2923 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2926 emacs_cv_openmotif=no
2928 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2929 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2930 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2933 Motif version prior to 2.1.
2935 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2936 if test $emacs_cv_motif_version_2_1 = yes; then
2937 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2938 if test x$emacs_cv_openmotif = xyes; then
2939 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2942 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2943 # We put this in CFLAGS temporarily to precede other -I options
2944 # that might be in CFLAGS temporarily.
2945 # We put this in CPPFLAGS where it precedes the other -I options.
2946 OLD_CPPFLAGS=$CPPFLAGS
2948 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2949 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2950 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2952 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2953 if test $emacs_cv_lesstif = yes; then
2954 # Make sure this -I option remains in CPPFLAGS after it is set
2955 # back to REAL_CPPFLAGS.
2956 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2957 # have those other -I options anyway. Ultimately, having this
2958 # directory ultimately in CPPFLAGS will be enough.
2959 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2960 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2963 CPPFLAGS=$OLD_CPPFLAGS
2966 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2967 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2970 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2971 dnl using Motif or Xaw3d is available, and unless
2972 dnl --with-toolkit-scroll-bars=no was specified.
2974 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2975 [Define to 1 if we should use toolkit scroll bars.])dnl
2976 USE_TOOLKIT_SCROLL_BARS=no
2977 if test "${with_toolkit_scroll_bars}" != "no"; then
2978 if test "${USE_X_TOOLKIT}" != "none"; then
2979 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2980 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2982 USE_TOOLKIT_SCROLL_BARS=yes
2983 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2984 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2985 USE_TOOLKIT_SCROLL_BARS=yes
2987 elif test "${HAVE_GTK}" = "yes"; then
2988 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2989 USE_TOOLKIT_SCROLL_BARS=yes
2990 elif test "${HAVE_NS}" = "yes"; then
2991 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2992 USE_TOOLKIT_SCROLL_BARS=yes
2993 elif test "${HAVE_W32}" = "yes"; then
2994 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2995 USE_TOOLKIT_SCROLL_BARS=yes
2999 dnl See if XIM is available.
3000 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3001 #include <X11/Xlib.h>
3002 #include <X11/Xresource.h>]],
3003 [[XIMProc callback;]])],
3005 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3008 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3010 if test "${with_xim}" != "no"; then
3011 AC_DEFINE(USE_XIM, 1,
3012 [Define to 1 if we should use XIM, if it is available.])
3016 if test "${HAVE_XIM}" != "no"; then
3018 if test "$GCC" = yes; then
3019 CFLAGS="$CFLAGS --pedantic-errors"
3021 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3022 #include <X11/Xlib.h>
3023 #include <X11/Xresource.h>]],
3029 XPointer *client_data;
3031 /* If we're not using GCC, it's probably not XFree86, and this is
3032 probably right, but we can't use something like --pedantic-errors. */
3033 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3034 char*, XIMProc, XPointer*);
3036 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3038 [emacs_cv_arg6_star=yes])
3039 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3040 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3041 either XPointer or XPointer*.])dnl
3042 if test "$emacs_cv_arg6_star" = yes; then
3043 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3045 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3050 ### Start of font-backend (under any platform) section.
3051 # (nothing here yet -- this is a placeholder)
3052 ### End of font-backend (under any platform) section.
3054 ### Start of font-backend (under X11) section.
3055 if test "${HAVE_X11}" = "yes"; then
3056 ## Use -lXft if available, unless '--with-xft=no'.
3058 if test "x${with_x}" = "xno"; then
3062 if test "$with_xft" != no; then
3063 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3064 with_xft=$HAVE_FONTCONFIG
3067 if test "x${with_xft}" != "xno"; then
3069 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3070 ## Because xftfont.c uses XRenderQueryExtension, we also
3071 ## need to link to -lXrender.
3073 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3074 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3075 OLD_CPPFLAGS="$CPPFLAGS"
3076 OLD_CFLAGS="$CFLAGS"
3078 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3079 CFLAGS="$CFLAGS $XFT_CFLAGS"
3080 XFT_LIBS="-lXrender $XFT_LIBS"
3081 LIBS="$XFT_LIBS $LIBS"
3082 AC_CHECK_HEADER(X11/Xft/Xft.h,
3083 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3084 [[#include <X11/X.h>]])
3086 if test "${HAVE_XFT}" = "yes"; then
3087 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3089 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3090 fi # "${HAVE_XFT}" = "yes"
3091 CPPFLAGS=$OLD_CPPFLAGS
3094 fi # "$HAVE_XFT" != no
3095 fi # "x${with_xft}" != "xno"
3097 ## We used to allow building with FreeType and without Xft.
3098 ## However, the ftx font backend driver is not in good shape.
3099 if test "$HAVE_XFT" != "yes"; then
3100 dnl For the "Does Emacs use" message at the end.
3104 dnl Strict linkers fail with
3105 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3106 dnl if -lfreetype is not specified.
3107 dnl The following is needed to set FREETYPE_LIBS.
3108 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3110 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3114 if test "${HAVE_FREETYPE}" = "yes"; then
3115 AC_DEFINE(HAVE_FREETYPE, 1,
3116 [Define to 1 if using the freetype and fontconfig libraries.])
3117 if test "${with_libotf}" != "no"; then
3118 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3119 if test "$HAVE_LIBOTF" = "yes"; then
3120 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3121 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3122 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3123 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3124 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3125 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3126 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3130 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3131 dnl Does the new font backend require it, or can it work without it?
3135 if test "${HAVE_LIBOTF}" = yes; then
3136 if test "${with_m17n_flt}" != "no"; then
3137 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3138 if test "$HAVE_M17N_FLT" = "yes"; then
3139 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3150 ### End of font-backend (under X11) section.
3152 AC_SUBST(FREETYPE_CFLAGS)
3153 AC_SUBST(FREETYPE_LIBS)
3154 AC_SUBST(FONTCONFIG_CFLAGS)
3155 AC_SUBST(FONTCONFIG_LIBS)
3156 AC_SUBST(LIBOTF_CFLAGS)
3157 AC_SUBST(LIBOTF_LIBS)
3158 AC_SUBST(M17N_FLT_CFLAGS)
3159 AC_SUBST(M17N_FLT_LIBS)
3162 if test "${HAVE_X11}" = "yes"; then
3163 if test "${with_cairo}" != "no"; then
3164 CAIRO_REQUIRED=1.12.0
3165 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3166 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3167 if test $HAVE_CAIRO = yes; then
3168 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3170 AC_MSG_ERROR([cairo requested but not found.])
3173 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3174 LIBS="$LIBS $CAIRO_LIBS"
3175 AC_SUBST(CAIRO_CFLAGS)
3176 AC_SUBST(CAIRO_LIBS)
3180 if test "${HAVE_X11}" = "yes"; then
3181 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3182 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3183 if test "${HAVE_XCB}" = "yes"; then
3184 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3185 if test "${HAVE_X11_XCB}" = "yes"; then
3186 AC_DEFINE(USE_XCB, 1,
3187 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3188 X11/XCB programming.])
3189 XCB_LIBS="-lX11-xcb -lxcb"
3195 ### Use -lXpm if available, unless '--with-xpm=no'.
3196 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3197 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3198 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3199 ### LDFLAGS) accordingly.
3202 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3203 if test "${with_xpm}" != "no"; then
3204 SAVE_CPPFLAGS="$CPPFLAGS"
3205 SAVE_LDFLAGS="$LDFLAGS"
3206 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3207 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3208 AC_CHECK_HEADER(X11/xpm.h,
3209 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3210 if test "${HAVE_XPM}" = "yes"; then
3211 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3212 AC_EGREP_CPP(no_return_alloc_pixels,
3213 [#include "X11/xpm.h"
3214 #ifndef XpmReturnAllocPixels
3215 no_return_alloc_pixels
3217 ], HAVE_XPM=no, HAVE_XPM=yes)
3219 if test "${HAVE_XPM}" = "yes"; then
3220 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3224 CPPFLAGS="$SAVE_CPPFLAGS"
3225 LDFLAGS="$SAVE_LDFLAGS"
3230 if test "${HAVE_XPM}" = "yes"; then
3231 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3236 if test "${HAVE_X11}" = "yes"; then
3237 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3238 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3240 if test "${with_xpm}" != "no"; then
3241 AC_CHECK_HEADER(X11/xpm.h,
3242 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3243 if test "${HAVE_XPM}" = "yes"; then
3244 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3245 AC_EGREP_CPP(no_return_alloc_pixels,
3246 [#include "X11/xpm.h"
3247 #ifndef XpmReturnAllocPixels
3248 no_return_alloc_pixels
3250 ], HAVE_XPM=no, HAVE_XPM=yes)
3252 if test "${HAVE_XPM}" = "yes"; then
3260 if test "${HAVE_XPM}" = "yes"; then
3261 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3263 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3264 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3269 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3270 ### slightly different requirements wrt image libraries (it doesn't
3271 ### use -lXpm because it loads the xpm shared library dynamically at
3273 if test "${opsys}" = "mingw32"; then
3274 if test "${with_xpm}" != "no"; then
3275 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3279 if test "${HAVE_XPM}" = "yes"; then
3280 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3286 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3289 if test "${with_jpeg}" != "no"; then
3290 AC_CACHE_CHECK([for jpeglib 6b or later],
3293 for emacs_cv_jpeglib in yes -ljpeg no; do
3294 case $emacs_cv_jpeglib in
3297 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3301 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3302 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3303 #include <jpeglib.h>
3305 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3306 struct jpeg_decompress_struct cinfo;
3309 jpeg_create_decompress (&cinfo);
3310 WARNMS (&cinfo, JWRN_JPEG_EOF);
3311 jpeg_destroy_decompress (&cinfo);
3313 [emacs_link_ok=yes],
3316 test $emacs_link_ok = yes && break
3318 if test "$emacs_cv_jpeglib" != no; then
3320 AC_DEFINE([HAVE_JPEG], 1,
3321 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3322 ### mingw32 doesn't use -ljpeg, since it loads the library
3323 ### dynamically when needed, and doesn't want a run-time
3324 ### dependency on the jpeglib DLL.
3325 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3326 && LIBJPEG=$emacs_cv_jpeglib
3333 if test "${with_zlib}" != "no"; then
3335 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3337 case $ac_cv_search_inflateEnd in
3338 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3341 if test "${HAVE_ZLIB}" = "yes"; then
3342 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3343 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3344 if test "${opsys}" = "mingw32"; then
3350 ### Dynamic modules support
3355 if test "${with_modules}" != "no"; then
3356 if test "$opsys" = "gnu-linux"; then
3358 MODULES_SUFFIX=".so"
3360 elif test "$opsys" = "cygwin"; then
3361 MODULES_SUFFIX=".dll"
3363 elif test "$opsys" = "darwin"; then
3364 MODULES_SUFFIX=".so"
3366 elif test "$opsys" = "mingw32"; then
3367 MODULES_SUFFIX=".dll"
3370 # BSD system have dlopen in the libc
3371 AC_CHECK_FUNC(dlopen, [MODULES_SUFFIX=".so"]
3372 [HAVE_MODULES=yes], [])
3375 if test "${HAVE_MODULES}" = no; then
3376 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3379 LIBS="$LIBS $LIBMODULES"
3380 AC_CHECK_FUNCS([dladdr dlfunc])
3385 if test "${HAVE_MODULES}" = yes; then
3386 MODULES_OBJ="dynlib.o emacs-module.o"
3387 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3388 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3389 [System extension for dynamic libraries])
3391 AC_SUBST(MODULES_OBJ)
3392 AC_SUBST(LIBMODULES)
3394 ### Use -lpng if available, unless '--with-png=no'.
3398 if test "${NS_IMPL_COCOA}" = yes; then
3400 elif test "${with_png}" != no; then
3401 # mingw32 loads the library dynamically.
3402 if test "$opsys" = mingw32; then
3403 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3404 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3405 AC_MSG_CHECKING([for png])
3406 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3407 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3408 # libpng-config does not work; configure by hand.
3409 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3410 # in /usr/include/libpng.
3411 if test -r /usr/include/libpng/png.h &&
3412 test ! -r /usr/include/png.h; then
3413 png_cflags=-I/usr/include/libpng
3421 CFLAGS="$CFLAGS $png_cflags"
3422 LIBS="$png_libs -lz -lm $LIBS"
3424 [AC_LANG_PROGRAM([[#include <png.h>]],
3425 [[return !png_get_channels (0, 0);]])],
3427 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3429 # $LIBPNG requires explicit -lz in some cases.
3430 # We don't know what those cases are, exactly, so play it safe and
3431 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3432 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3433 LIBPNG="$LIBPNG -lz"
3437 AC_MSG_RESULT([$HAVE_PNG])
3440 if test $HAVE_PNG = yes; then
3441 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3444 CFLAGS="$CFLAGS $PNG_CFLAGS"
3445 AC_CHECK_DECL([png_longjmp],
3447 [AC_DEFINE([PNG_DEPSTRUCT], [],
3448 [Define to empty to suppress deprecation warnings when building
3449 with --enable-gcc-warnings and with libpng versions before 1.5,
3450 which lack png_longjmp.])],
3456 AC_SUBST(PNG_CFLAGS)
3458 ### Use -ltiff if available, unless '--with-tiff=no'.
3459 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3462 if test "${opsys}" = "mingw32"; then
3463 if test "${with_tiff}" != "no"; then
3464 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3466 if test "${HAVE_TIFF}" = "yes"; then
3467 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3469 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3470 if test "${with_tiff}" != "no"; then
3471 AC_CHECK_HEADER(tiffio.h,
3473 # At least one tiff package requires the jpeg library.
3474 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3475 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3478 if test "${HAVE_TIFF}" = "yes"; then
3479 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3480 dnl FIXME -lz -lm, as per libpng?
3486 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3487 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3490 if test "${opsys}" = "mingw32"; then
3491 if test "${with_gif}" != "no"; then
3492 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3494 if test "${HAVE_GIF}" = "yes"; then
3495 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3497 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3498 || test "${HAVE_W32}" = "yes"; then
3499 AC_CHECK_HEADER(gif_lib.h,
3500 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3501 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3502 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3503 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3505 if test "$HAVE_GIF" = yes; then
3507 elif test "$HAVE_GIF" = maybe; then
3508 # If gif_lib.h but no libgif, try libungif.
3509 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3510 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3513 if test "${HAVE_GIF}" = "yes"; then
3514 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3519 dnl Check for required libraries.
3520 if test "${HAVE_X11}" = "yes"; then
3523 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3524 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3525 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3526 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3527 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3528 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3529 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3530 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3531 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3532 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3534 if test "X${MISSING}" != X; then
3535 AC_MSG_ERROR([The following required libraries were not found:
3537 Maybe some development libraries/packages are missing?
3538 If you don't want to link with them give
3540 as options to configure])
3544 ### Use -lgpm if available, unless '--with-gpm=no'.
3547 if test "${with_gpm}" != "no"; then
3548 AC_CHECK_HEADER(gpm.h,
3549 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3551 if test "${HAVE_GPM}" = "yes"; then
3552 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3558 dnl Check for malloc/malloc.h on darwin
3559 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3562 ### Use NeXTstep API to implement GUI.
3563 if test "${HAVE_NS}" = "yes"; then
3564 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3565 if test "${NS_IMPL_COCOA}" = "yes"; then
3566 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3568 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3569 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3570 if test $NS_GNUSTEP_CONFIG != yes; then
3571 # See also .m.o rule in src/Makefile.in. */
3572 # FIXME: are all these flags really needed? Document here why. */
3573 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3574 ## Extra CFLAGS applied to src/*.m files.
3575 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3581 ### Use session management (-lSM -lICE) if available
3584 if test "${HAVE_X11}" = "yes"; then
3585 AC_CHECK_HEADER(X11/SM/SMlib.h,
3586 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3588 if test "${HAVE_X_SM}" = "yes"; then
3589 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3595 ### Use XRandr (-lXrandr) if available
3597 if test "${HAVE_X11}" = "yes"; then
3598 XRANDR_REQUIRED=1.2.2
3599 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3600 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3601 if test $HAVE_XRANDR = no; then
3602 # Test old way in case pkg-config doesn't have it (older machines).
3603 # Include Xrender.h by hand to work around bug in older Xrandr.h
3604 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3605 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3606 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3607 [], [AC_INCLUDES_DEFAULT
3608 #include <X11/extensions/Xrender.h>])
3609 if test $HAVE_XRANDR = yes; then
3610 XRANDR_LIBS=-lXrandr
3613 if test $HAVE_XRANDR = yes; then
3614 SAVE_CFLAGS="$CFLAGS"
3616 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3617 LIBS="$XRANDR_LIBS $LIBS"
3618 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3619 CFLAGS="$SAVE_CFLAGS"
3622 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3625 AC_SUBST(XRANDR_CFLAGS)
3626 AC_SUBST(XRANDR_LIBS)
3628 ### Use Xinerama (-lXinerama) if available
3630 if test "${HAVE_X11}" = "yes"; then
3631 XINERAMA_REQUIRED=1.0.2
3632 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3633 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3634 if test $HAVE_XINERAMA = no; then
3635 # Test old way in case pkg-config doesn't have it (older machines).
3636 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3637 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3638 if test $HAVE_XINERAMA = yes; then
3639 XINERAMA_LIBS=-lXinerama
3642 if test $HAVE_XINERAMA = yes; then
3643 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3646 AC_SUBST(XINERAMA_CFLAGS)
3647 AC_SUBST(XINERAMA_LIBS)
3649 ### Use Xfixes (-lXfixes) if available
3651 if test "${HAVE_X11}" = "yes"; then
3652 XFIXES_REQUIRED=4.0.0
3653 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3654 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3655 if test $HAVE_XFIXES = no; then
3656 # Test old way in case pkg-config doesn't have it (older machines).
3657 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3658 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3659 if test $HAVE_XFIXES = yes; then
3660 XFIXES_LIBS=-lXfixes
3663 if test $HAVE_XFIXES = yes; then
3664 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3667 AC_SUBST(XFIXES_CFLAGS)
3668 AC_SUBST(XFIXES_LIBS)
3670 ### Use libxml (-lxml2) if available
3671 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3673 if test "${with_xml2}" != "no"; then
3674 ### I'm not sure what the version number should be, so I just guessed.
3675 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3676 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3677 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3678 SAVE_CPPFLAGS="$CPPFLAGS"
3679 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3680 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3681 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3683 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3687 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3688 AC_CHECK_HEADER(libxml/HTMLparser.h,
3689 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3690 [#include <libxml/HTMLparser.h>])])
3691 CPPFLAGS="$SAVE_CPPFLAGS"
3692 if test "${HAVE_LIBXML2}" = "yes"; then
3693 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3694 LIBXML2_LIBS="-lxml2"
3697 if test "${HAVE_LIBXML2}" = "yes"; then
3698 if test "${opsys}" != "mingw32"; then
3699 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3704 if test "${HAVE_LIBXML2}" = "yes"; then
3705 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3712 AC_SUBST(LIBXML2_LIBS)
3713 AC_SUBST(LIBXML2_CFLAGS)
3715 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3716 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3717 if test "${opsys}" = "mingw32"; then
3718 emacs_cv_netdb_declares_h_errno=yes
3720 AC_CACHE_CHECK(whether netdb declares h_errno,
3721 emacs_cv_netdb_declares_h_errno,
3722 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3723 [[return h_errno;]])],
3724 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3725 if test $emacs_cv_netdb_declares_h_errno = yes; then
3726 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3729 # Check for mail-locking functions in a "mail" library. Probably this should
3730 # have the same check as for liblockfile below.
3731 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3732 if test $have_mail = yes; then
3734 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3737 LIBS="$LIBS_MAIL $LIBS"
3738 AC_CHECK_FUNCS(touchlock)
3743 dnl Debian, at least:
3744 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3745 if test $have_lockfile = yes; then
3746 LIBS_MAIL=-llockfile
3747 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3749 # If we have the shared liblockfile, assume we must use it for mail
3750 # locking (e.g. Debian). If we couldn't link against liblockfile
3751 # (no liblockfile.a installed), ensure that we don't need to.
3752 dnl This works for files generally, not just executables.
3753 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3754 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3755 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3756 if test $ac_cv_prog_liblockfile = yes; then
3757 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3758 This probably means that movemail could lose mail.
3759 There may be a 'development' package to install containing liblockfile.])
3762 AC_CHECK_HEADERS_ONCE(maillock.h)
3765 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3766 ## interlock access to the mail spool. The alternative is a lock file named
3767 ## /usr/spool/mail/$USER.lock.
3770 aix4-2) mail_lock="lockf" ;;
3772 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3774 ## On GNU/Linux systems, both methods are used by various mail programs.
3775 ## I assume most people are using newer mailers that have heard of flock.
3776 ## Change this if you need to.
3777 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3778 ## configure gets the right answers, and that means *NOT* using flock.
3779 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3780 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3781 ## Debian maintainer hasn't provided a clean fix for Emacs.
3782 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3783 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3784 ## correct logic. -- fx
3785 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3786 ## liblockfile is a Free Software replacement for libmail, used on
3787 ## Debian systems and elsewhere. -rfr.
3790 if test $have_mail = yes || test $have_lockfile = yes; then
3791 test $ac_cv_header_maillock_h = yes && mail_lock=no
3796 mail_lock="none-needed" ;;
3800 case "$mail_lock" in
3801 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3803 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3807 *) BLESSMAIL_TARGET="need-blessmail" ;;
3809 AC_SUBST(BLESSMAIL_TARGET)
3812 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3813 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3814 getrusage get_current_dir_name \
3815 lrand48 random rint \
3816 select getpagesize setlocale newlocale \
3817 getrlimit setrlimit shutdown getaddrinfo \
3818 pthread_sigmask strsignal setitimer \
3819 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3821 getpwent endpwent getgrent endgrent \
3822 cfmakeraw cfsetspeed copysign __executable_start log2)
3825 dnl No need to check for posix_memalign if aligned_alloc works.
3826 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3827 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3829 dnl Cannot use AC_CHECK_FUNCS
3830 AC_CACHE_CHECK([for __builtin_unwind_init],
3831 emacs_cv_func___builtin_unwind_init,
3832 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3833 emacs_cv_func___builtin_unwind_init=yes,
3834 emacs_cv_func___builtin_unwind_init=no)])
3835 if test $emacs_cv_func___builtin_unwind_init = yes; then
3836 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3837 [Define to 1 if you have the '__builtin_unwind_init' function.])
3840 AC_CHECK_HEADERS_ONCE(sys/un.h)
3845 AC_CHECK_FUNCS(grantpt)
3847 # PTY-related GNU extensions.
3848 AC_CHECK_FUNCS(getpt posix_openpt)
3850 # Check this now, so that we will NOT find the above functions in ncurses.
3851 # That is because we have not set up to link ncurses in lib-src.
3852 # It's better to believe a function is not available
3853 # than to expect to find it in ncurses.
3854 # Also we need tputs and friends to be able to build at all.
3855 AC_MSG_CHECKING([for library containing tputs])
3856 # Run a test program that contains a call to tputs, a call that is
3857 # never executed. This tests whether a pre-'main' dynamic linker
3858 # works with the library. It's too much trouble to actually call
3859 # tputs in the test program, due to portability hassles. When
3860 # cross-compiling, assume the test program will run if it links.
3861 AC_DEFUN([tputs_link_source], [
3863 [[extern void tputs (const char *, int, int (*)(int));
3864 int main (int argc, char **argv)
3867 tputs (argv[0], 0, 0);
3871 if test "${opsys}" = "mingw32"; then
3874 # Maybe curses should be tried earlier?
3875 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3876 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3878 if test -z "$tputs_library"; then
3882 LIBS_TERMCAP=-l$tputs_library
3884 LIBS="$LIBS_TERMCAP $LIBS"
3886 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3887 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3889 if test "X$msg" != Xno; then
3894 AC_MSG_RESULT([$msg])
3895 if test "X$msg" = Xno; then
3896 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3897 The following libraries were tried (in order):
3898 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3899 Please try installing whichever of these libraries is most appropriate
3900 for your system, together with its header files.
3901 For example, a libncurses-dev(el) or similar package.])
3904 ## Use termcap instead of terminfo?
3905 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3907 ## FIXME? In the cases below where we unconditionally set
3908 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3909 ## if that was found above to have tputs.
3910 ## Should we use the gnu* logic everywhere?
3912 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3913 ## The ncurses library has been moved out of the System framework in
3914 ## Mac OS X 10.2. So if configure detects it, set the command-line
3915 ## option to use it.
3916 darwin) LIBS_TERMCAP="-lncurses" ;;
3918 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3921 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3922 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3923 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3924 [[#if __FreeBSD_version < 400000
3927 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3929 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3931 if test $emacs_cv_freebsd_terminfo = yes; then
3932 LIBS_TERMCAP="-lncurses"
3935 LIBS_TERMCAP="-ltermcap"
3945 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3947 LIBS_TERMCAP="-ltermcap"
3951 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3953 ## hpux: Make sure we get select from libc rather than from libcurses
3954 ## because libcurses on HPUX 10.10 has a broken version of select.
3955 ## We used to use -lc -lcurses, but this may be cleaner.
3956 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3957 # set that way, now it uses the default). Isn't this a contradiction?
3958 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3962 TERMCAP_OBJ=tparam.o
3963 if test $TERMINFO = yes; then
3964 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3965 TERMCAP_OBJ=terminfo.o
3967 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3968 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3970 AC_SUBST(LIBS_TERMCAP)
3971 AC_SUBST(TERMCAP_OBJ)
3973 # GNU/Linux-specific timer functions.
3974 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3976 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3978 [[timerfd_create (CLOCK_REALTIME,
3979 TFD_CLOEXEC | TFD_NONBLOCK);
3980 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3981 [emacs_cv_have_timerfd=yes],
3982 [emacs_cv_have_timerfd=no])])
3983 if test "$emacs_cv_have_timerfd" = yes; then
3984 AC_DEFINE([HAVE_TIMERFD], 1,
3985 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3988 # Alternate stack for signal handlers.
3989 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3990 [emacs_cv_alternate_stack],
3992 [AC_LANG_PROGRAM([[#include <signal.h>
3995 struct sigaction sa;
3996 ss.ss_sp = malloc (SIGSTKSZ);
3997 ss.ss_size = SIGSTKSZ;
3998 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3999 sigaltstack (&ss, 0);
4000 sigaction (SIGSEGV, &sa, 0);]])],
4001 [emacs_cv_alternate_stack=yes],
4002 [emacs_cv_alternate_stack=no])])
4004 # Do we have res_init, for detecting changes in /etc/resolv.conf?
4005 # On Darwin, res_init appears not to be useful: see bug#562 and
4006 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
4009 if test $opsys != darwin; then
4011 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
4012 #include <arpa/nameser.h>
4013 #include <resolv.h>]],
4014 [[return res_init();]])],
4015 have_res_init=yes, have_res_init=no)
4016 if test "$have_res_init" = no; then
4018 LIBS="$LIBS -lresolv"
4019 AC_MSG_CHECKING(for res_init with -lresolv)
4020 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
4021 #include <arpa/nameser.h>
4022 #include <resolv.h>]],
4023 [[return res_init();]])],
4024 have_res_init=yes, have_res_init=no)
4025 AC_MSG_RESULT($have_res_init)
4026 if test "$have_res_init" = yes ; then
4032 if test "$have_res_init" = yes; then
4033 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
4037 # Do we need the Hesiod library to provide the support routines?
4038 dnl FIXME? Should we be skipping this on Darwin too?
4040 if test "$with_hesiod" != no ; then
4041 # Don't set $LIBS here -- see comments above. FIXME which comments?
4042 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4043 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4044 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4045 if test "$resolv" = yes ; then
4050 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4051 hesiod=yes, :, $RESOLVLIB)])
4053 if test x"$hesiod" = xyes; then
4059 # Do we need libresolv (due to res_init or Hesiod)?
4060 if test "$resolv" = yes && test $opsys != darwin; then
4067 # These tell us which Kerberos-related libraries to use.
4074 if test "${with_kerberos}" != no; then
4076 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4077 if test $have_com_err = yes; then
4078 COM_ERRLIB=-lcom_err
4079 LIBS="$COM_ERRLIB $LIBS"
4081 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4082 if test $have_crypto = yes; then
4084 LIBS="$CRYPTOLIB $LIBS"
4086 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4087 if test $have_k5crypto = yes; then
4088 CRYPTOLIB=-lk5crypto
4089 LIBS="$CRYPTOLIB $LIBS"
4091 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4092 if test $have_krb5=yes; then
4094 LIBS="$KRB5LIB $LIBS"
4096 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4097 if test "${with_kerberos5}" = no; then
4098 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4099 if test $have_des425 = yes; then
4101 LIBS="$DESLIB $LIBS"
4103 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4104 if test $have_des = yes; then
4106 LIBS="$DESLIB $LIBS"
4109 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4110 if test $have_krb4 = yes; then
4112 LIBS="$KRB4LIB $LIBS"
4114 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4115 if test $have_krb = yes; then
4117 LIBS="$KRB4LIB $LIBS"
4122 if test "${with_kerberos5}" != no; then
4123 AC_CHECK_HEADERS(krb5.h,
4124 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4125 [#include <krb5.h>])])
4127 AC_CHECK_HEADERS(krb.h,,
4128 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4129 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4131 AC_CHECK_HEADERS(com_err.h)
4135 AC_SUBST(COM_ERRLIB)
4141 AC_CHECK_HEADERS(valgrind/valgrind.h)
4143 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4145 AC_CHECK_FUNCS_ONCE(tzset)
4148 AC_CHECK_FUNC(socket, , ok_so_far=no)
4149 if test $ok_so_far = yes; then
4150 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4152 if test $ok_so_far = yes; then
4153 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4155 if test $ok_so_far = yes; then
4156 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4157 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4158 [Define to 1 if you have inet sockets.])
4163 AC_CHECK_FUNCS(snprintf)
4165 dnl Check for glib. This differs from other library checks in that
4166 dnl Emacs need not link to glib unless some other library is already
4167 dnl linking to glib. Although glib provides no facilities that Emacs
4168 dnl needs for its own purposes, when glib is present Emacs needs to
4169 dnl use primitives like g_main_context_query to avoid clashing with
4170 dnl glib at a low level.
4172 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4176 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4177 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4178 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4179 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4180 AC_MSG_CHECKING([whether GLib is linked in])
4181 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4184 [[g_print ("Hello world");]])],
4187 AC_MSG_RESULT([$links_glib])
4188 if test "${links_glib}" = "yes"; then
4189 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4190 if test "$HAVE_NS" = no;then
4198 dnl Adapted from Haible's version.
4199 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4200 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4201 [[char* cs = nl_langinfo(CODESET);]])],
4202 emacs_cv_langinfo_codeset=yes,
4203 emacs_cv_langinfo_codeset=no)
4205 if test $emacs_cv_langinfo_codeset = yes; then
4206 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4207 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4212 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4213 dnl how the tty code is related to POSIX and/or other versions of termios.
4214 dnl The following looks like a useful start.
4216 dnl AC_SYS_POSIX_TERMIOS
4217 dnl if test $ac_cv_sys_posix_termios = yes; then
4218 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4219 dnl and macros for terminal control.])
4220 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4223 dnl Turned on June 1996 supposing nobody will mind it.
4224 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4225 if test "${opsys}" != "mingw32"; then
4226 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4227 in the full name stands for the login id.])
4230 dnl Everybody supports this, except MS.
4231 dnl Seems like the kind of thing we should be testing for, though.
4232 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4233 if test "${opsys}" != "mingw32"; then
4234 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4237 dnl Everybody supports this, except MS-DOS.
4238 dnl Seems like the kind of thing we should be testing for, though.
4239 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4240 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4241 4.2-compatible sockets.])
4243 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4245 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4246 a null file, or a data sink.])
4247 if test "${opsys}" = "mingw32"; then
4248 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4250 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4253 if test "${opsys}" = "mingw32"; then
4258 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4259 dnl This is for MinGW, and is used in test/Makefile.in.
4260 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4261 dnl decides that a command-line argument to be passed to a MinGW program
4262 dnl is a PATH-style list of directories. But that heuristics plays it
4263 dnl safe, and only does the replacement when it is _absolutely_ sure it
4264 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4265 dnl which breaks in-tree builds. So we do this manually instead.
4266 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4267 dnl be computed as ':' in MSYS Bash.
4270 dnl Everybody supports this, except MS-DOS.
4271 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4273 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4276 AC_DEFINE(DIRECTORY_SEP, ['/'],
4277 [Character that separates directories in a file name.])
4279 if test "${opsys}" = "mingw32"; then
4280 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4281 [Returns true if character is a device separator.])
4283 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4284 [Returns true if character is a directory separator.])
4286 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4287 [Returns true if character is any form of separator.])
4289 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4290 [Returns true if character is a device separator.])
4292 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4293 [Returns true if character is a directory separator.])
4295 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4296 [Returns true if character is any form of separator.])
4299 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4303 dnl Unfortunately without libXmu we cannot support EditRes.
4304 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4305 AC_DEFINE(NO_EDITRES, 1)
4310 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4311 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4312 AC_DEFINE(NO_EDITRES, 1)
4318 irix6-5 | sol2* | unixware )
4319 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4320 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4321 dnl need the constant to dimension an array. So wire in the appropriate
4323 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4327 emacs_broken_SIGIO=no
4330 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4331 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4332 hpux* | irix6-5 | nacl | openbsd | sol2* | unixware )
4333 emacs_broken_SIGIO=yes
4337 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4338 dnl the way this system works, libc functions that return malloced
4339 dnl memory use the libc malloc implementation. Calling xfree or
4340 dnl xrealloc on the results of such functions results in a crash.
4342 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4343 dnl but that does not currently work on this system.
4345 dnl It is possible to completely override the malloc implementation on
4346 dnl AIX, but that involves putting the malloc functions in a shared
4347 dnl library and setting the MALLOCTYPE environment variable to point to
4348 dnl that shared library.
4350 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4351 dnl to avoid a crash just use the Emacs implementation for that function.
4353 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4354 dnl of this file, so that we do not check for get_current_dir_name
4355 dnl on AIX. But that might be fragile if something else ends
4356 dnl up testing for get_current_dir_name as a dependency.
4357 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4358 get_current_dir_name should not be used.])
4362 dnl Circumvent a bug in FreeBSD. In the following sequence of
4363 dnl writes/reads on a PTY, read(2) returns bogus data:
4365 dnl write(2) 1022 bytes
4366 dnl write(2) 954 bytes, get EAGAIN
4367 dnl read(2) 1024 bytes in process_read_output
4368 dnl read(2) 11 bytes in process_read_output
4370 dnl That is, read(2) returns more bytes than have ever been written
4371 dnl successfully. The 1033 bytes read are the 1022 bytes written
4372 dnl successfully after processing (for example with CRs added if the
4373 dnl terminal is set up that way which it is here). The same bytes will
4374 dnl be seen again in a later read(2), without the CRs.
4375 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4376 work around an issue when reading from a PTY.])
4382 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4383 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4388 darwin | dragonfly | freebsd | netbsd | openbsd )
4389 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4390 close a pty to make it a controlling terminal (it is already a
4391 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4395 dnl FIXME Surely we can test for this rather than hard-code it.
4397 netbsd | openbsd) sound_device="/dev/audio" ;;
4398 *) sound_device="/dev/dsp" ;;
4402 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4403 [Name of the default sound device.])
4406 dnl Emacs can read input using SIGIO and buffering characters itself,
4407 dnl or using CBREAK mode and making C-g cause SIGINT.
4408 dnl The choice is controlled by the variable interrupt_input.
4410 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4412 dnl Emacs uses the presence of the USABLE_SIGIO macro
4413 dnl to indicate whether or not signal-driven I/O is possible. It uses
4414 dnl INTERRUPT_INPUT to decide whether to use it by default.
4416 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4417 dnl CBREAK mode has two disadvantages
4418 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4419 dnl I hear that in system V this problem does not exist.
4420 dnl 2) Control-G causes output to be discarded.
4421 dnl I do not know whether this can be fixed in system V.
4423 dnl Another method of doing input is planned but not implemented.
4424 dnl It would have Emacs fork off a separate process
4425 dnl to read the input and send it to the true Emacs process
4428 darwin | gnu-linux | gnu-kfreebsd )
4429 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4434 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4435 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4436 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4437 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4438 dnl taking float or double parameters.
4440 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4441 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4442 file defines 'NeedWidePrototypes' as 'NO'.])
4447 dnl Used in process.c, this must be a loop, even if it only runs once.
4448 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4449 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4450 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4451 dnl trying suffixes 0-16.
4452 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4453 first PTY, if PTYs are supported.])
4454 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4455 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4456 end of a PTY, if non-standard.])
4457 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4458 end of a PTY, if non-standard.])
4462 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4463 dnl You allocate a pty by opening /dev/ptc to get the master side.
4464 dnl To get the name of the slave side, you just ttyname() the master side.
4465 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4466 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4470 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4471 dnl multi-line AC_DEFINEs are hard. :(
4472 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)])
4473 AC_DEFINE(PTY_NAME_SPRINTF, [])
4474 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4478 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4481 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4483 if test "x$ac_cv_func_grantpt" = xyes; then
4484 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4485 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4486 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4487 dnl to prevent sigchld_handler from intercepting the child's death.
4488 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); }])
4489 dnl if HAVE_POSIX_OPENPT
4490 if test "x$ac_cv_func_posix_openpt" = xyes; then
4491 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4492 AC_DEFINE(PTY_NAME_SPRINTF, [])
4494 elif test "x$ac_cv_func_getpt" = xyes; then
4495 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4496 AC_DEFINE(PTY_NAME_SPRINTF, [])
4498 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4501 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4506 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4507 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4508 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4512 dnl It looks like this cannot be right, because it is not a loop.
4513 dnl However, process.c actually does this:
4519 dnl which presumably makes it OK, since irix == sgi (?).
4520 dnl FIXME it seems like this special treatment is unnecessary?
4521 dnl Why can't irix use a single-trip loop like eg cygwin?
4522 AC_DEFINE(PTY_ITERATION, [])
4523 dnl Not used, because PTY_ITERATION is defined.
4524 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4525 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); }])
4526 dnl No need to get the pty name at all.
4527 AC_DEFINE(PTY_NAME_SPRINTF, [])
4528 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4529 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4533 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4534 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4535 dnl from intercepting that death. If any child but grantpt's should die
4536 dnl within, it should be caught after sigrelse(2).
4537 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4538 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); }])
4542 dnl Comments are as per sol2*.
4543 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4544 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); }])
4551 dnl This change means that we don't loop through allocate_pty too
4552 dnl many times in the (rare) event of a failure.
4553 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4554 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4555 dnl Push various streams modules onto a PTY channel. Used in process.c.
4556 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.])
4561 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4562 "typing" a signal character on the pty.])
4565 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4566 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4567 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4568 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4571 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4572 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4573 gnu-linux | gnu-kfreebsd )
4575 AC_MSG_CHECKING([for signals via characters])
4576 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4577 #include <linux/version.h>
4578 #if LINUX_VERSION_CODE < 0x20400
4579 # error "Linux version too old"
4581 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4583 AC_MSG_RESULT([$emacs_signals_via_chars])
4584 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4589 AH_TEMPLATE(TAB3, [Undocumented.])
4592 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4594 gnu | dragonfly | freebsd | netbsd | openbsd )
4595 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4596 AC_DEFINE(TAB3, OXTABS)
4599 gnu-linux | gnu-kfreebsd )
4600 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4604 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4605 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4606 [Mark a secondary stack, like the register stack on the ia64.]), [])
4610 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4611 run_time_remap; for HPUX.])
4616 dnl This won't be used automatically yet. We also need to know, at least,
4617 dnl that the stack is continuous.
4618 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4619 registers relevant for conservative garbage collection in the jmp_buf.])
4623 dnl Not all the architectures are tested, but there are Debian packages
4624 dnl for SCM and/or Guile on them, so the technique must work. See also
4625 dnl comments in alloc.c concerning setjmp and gcc.
4626 dnl Fixme: it's probably safe to just use the GCC conditional below.
4627 gnu-linux | gnu-kfreebsd )
4628 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4629 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4630 || defined __alpha__ || defined __mips__ || defined __s390__ \
4631 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4632 || defined __ia64__ || defined __sh__
4635 # error "setjmp not known to work on this arch"
4637 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4642 if test x$GCC = xyes; then
4643 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4644 AC_DEFINE(GC_SETJMP_WORKS, 1)
4647 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4648 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4649 AC_DEFINE(GC_SETJMP_WORKS, 1)
4654 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4655 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4658 [[#include <setjmp.h>
4660 # define _longjmp longjmp
4665 _longjmp (j, 1);]])],
4666 [emacs_cv_func__setjmp=yes],
4667 [emacs_cv_func__setjmp=no])])
4668 if test $emacs_cv_func__setjmp = yes; then
4669 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4672 # We need to preserve signal mask to handle C stack overflows.
4673 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4676 [[#include <setjmp.h>
4679 if (! sigsetjmp (j, 1))
4680 siglongjmp (j, 1);]])],
4681 [emacs_cv_func_sigsetjmp=yes],
4682 [emacs_cv_func_sigsetjmp=no])])
4683 if test $emacs_cv_func_sigsetjmp = yes; then
4684 AC_DEFINE([HAVE_SIGSETJMP], 1,
4685 [Define to 1 if sigsetjmp and siglongjmp work.])
4688 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4689 yes,yes,* | *,*,mingw32)
4690 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4691 [Define to 1 if C stack overflow can be handled in some cases.]);;
4696 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4697 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4698 dnl and this is all we need.
4699 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4706 dnl Used in xfaces.c.
4707 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4708 some systems, where it requires time.h.])
4713 dnl Define symbols to identify the version of Unix this is.
4714 dnl Define all the symbols that apply correctly.
4715 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4716 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4717 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4718 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4723 dnl This symbol should be defined on AIX Version 3 ???????
4724 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4726 # error "_AIX not defined"
4728 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4732 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4736 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4737 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4738 dnl distinguish OS X from pure Darwin.
4739 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4742 gnu-linux | gnu-kfreebsd )
4744 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4749 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4754 AC_DEFINE(USG5_4, [])
4755 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4759 AC_DEFINE(DOS_NT, [])
4760 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4761 if test "x$ac_enable_checking" != "x" ; then
4762 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4768 AC_DEFINE(USG5_4, [])
4769 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4774 AC_DEFINE(USG5_4, [])
4778 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4781 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4782 emacs_cv_usable_FIONREAD=no
4786 emacs_cv_usable_FIONREAD=yes
4791 [AC_LANG_PROGRAM([[#include <sys/types.h>
4792 #include <sys/ioctl.h>
4794 # include <sys/filio.h>
4797 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4798 [emacs_cv_usable_FIONREAD=yes],
4799 [emacs_cv_usable_FIONREAD=no])
4802 if test $emacs_cv_usable_FIONREAD = yes; then
4803 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4805 if test $emacs_broken_SIGIO = no; then
4806 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4808 [AC_LANG_PROGRAM([[#include <fcntl.h>
4811 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4812 [emacs_cv_usable_SIGIO=yes],
4813 [emacs_cv_usable_SIGIO=no])],
4814 [emacs_cv_usable_SIGIO=yes],
4815 [emacs_cv_usable_SIGIO=no])
4816 if test $emacs_cv_usable_SIGIO = yes; then
4817 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4824 dnl It works to open the pty's tty in the parent (Emacs), then
4825 dnl close and reopen it in the child.
4826 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4827 works to open a pty's tty in the parent process, then close and
4828 reopen it in the child.])
4832 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4833 use VSUSP instead of VSWTCH.])
4837 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4842 # Set up the CFLAGS for real compilation, so we can substitute it.
4843 CFLAGS="$REAL_CFLAGS"
4844 CPPFLAGS="$REAL_CPPFLAGS"
4847 ## Hack to detect a buggy GCC version.
4848 if test "$GCC" = yes && \
4849 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4851 *-fno-optimize-sibling-calls*) ;;
4853 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4857 version=$PACKAGE_VERSION
4859 copyright="Copyright (C) 2016 Free Software Foundation, Inc."
4860 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4861 [Short copyright string for this version of Emacs.])
4864 ### Specify what sort of things we'll be editing into Makefile and config.h.
4865 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4867 AC_SUBST(configuration)
4872 AC_SUBST(exec_prefix)
4875 AC_SUBST(sharedstatedir)
4876 AC_SUBST(libexecdir)
4880 AC_SUBST(standardlisppath)
4881 AC_SUBST(locallisppath)
4883 AC_SUBST(x_default_search_path)
4885 AC_SUBST(archlibdir)
4891 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4892 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4893 ## end of LIBX_BASE, but nothing ever set it.
4894 AC_SUBST(LD_SWITCH_X_SITE)
4895 AC_SUBST(C_SWITCH_X_SITE)
4896 AC_SUBST(GNUSTEP_CFLAGS)
4898 ## Used in lwlib/Makefile.in.
4899 AC_SUBST(X_TOOLKIT_TYPE)
4901 AC_SUBST(ns_appbindir)
4902 AC_SUBST(ns_appresdir)
4904 AC_SUBST(GNU_OBJC_CFLAGS)
4905 AC_SUBST(OTHER_FILES)
4907 if test -n "${term_header}"; then
4908 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4909 [Define to the header for the built-in window system.])
4912 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4913 [Define to the canonical Emacs configuration name.])
4914 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4915 [Define to the options passed to configure.])
4916 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4917 define this to include extra configuration information.])
4921 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4928 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4929 AC_DEFINE(HAVE_X_WINDOWS, 1,
4930 [Define to 1 if you want to use the X window system.])
4932 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4934 if test "$HAVE_CAIRO" = "yes"; then
4935 FONT_OBJ="ftfont.o ftcrfont.o"
4936 elif test "$HAVE_XFT" = "yes"; then
4937 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4938 elif test "$HAVE_FREETYPE" = "yes"; then
4939 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4949 if test "${USE_X_TOOLKIT}" != "none" ; then
4951 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4952 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4953 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4954 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4955 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4959 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4960 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4964 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4965 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4966 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4970 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4971 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4974 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4977 AC_SUBST(WIDGET_OBJ)
4980 case "$USE_X_TOOLKIT" in
4981 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4982 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4983 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4985 if test "$HAVE_XWIDGETS" = "yes"; then
4986 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
4988 AC_SUBST(TOOLKIT_LIBW)
4990 if test "${opsys}" != "mingw32"; then
4991 if test "$USE_X_TOOLKIT" = "none"; then
4992 LIBXT_OTHER="\$(LIBXSM)"
4994 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4997 AC_SUBST(LIBXT_OTHER)
4999 if test "${HAVE_X11}" = "yes" ; then
5000 AC_DEFINE(HAVE_X11, 1,
5001 [Define to 1 if you want to use version 11 of X windows.])
5002 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5006 AC_SUBST(LIBX_OTHER)
5008 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5010 elif test "$USE_X_TOOLKIT" = none; then
5011 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5013 LIBXMENU='$(lwlibdir)/liblw.a'
5017 AC_CACHE_CHECK([for struct alignment],
5018 [emacs_cv_struct_alignment],
5020 [AC_LANG_PROGRAM([[#include <stddef.h>
5021 struct __attribute__ ((aligned (8))) s { char c; };
5022 struct t { char c; struct s s; };
5023 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5025 [emacs_cv_struct_alignment=yes],
5026 [emacs_cv_struct_alignment=no])])
5027 if test "$emacs_cv_struct_alignment" = yes; then
5028 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5029 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5030 structure to an N-byte boundary.])
5033 if test "${GNU_MALLOC}" = "yes" ; then
5034 AC_DEFINE(GNU_MALLOC, 1,
5035 [Define to 1 if you want to use the GNU memory allocator.])
5039 if test "${REL_ALLOC}" = "yes" ; then
5040 AC_DEFINE(REL_ALLOC, 1,
5041 [Define REL_ALLOC if you want to use the relocating allocator for
5044 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5046 AC_SUBST(RALLOC_OBJ)
5048 if test "$opsys" = "cygwin"; then
5049 CYGWIN_OBJ="cygw32.o"
5050 ## Cygwin differs because of its unexec().
5052 POST_ALLOC_OBJ=lastfile.o
5053 elif test "$opsys" = "mingw32"; then
5056 POST_ALLOC_OBJ=lastfile.o
5059 PRE_ALLOC_OBJ=lastfile.o
5062 AC_SUBST(CYGWIN_OBJ)
5063 AC_SUBST(PRE_ALLOC_OBJ)
5064 AC_SUBST(POST_ALLOC_OBJ)
5066 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5067 dnl verbatim defined above. The tricky name is apropos, as this hack
5068 dnl makes Fortify go sour!
5069 AH_VERBATIM([FORTIFY_SOUR],
5070 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5071 The workaround disables some useful run-time checking, so it
5072 should be conditional to the platforms with the performance bug.
5073 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5074 #if defined __APPLE__ && defined __GNUC__
5075 # ifndef _DONT_USE_CTYPE_INLINE_
5076 # define _DONT_USE_CTYPE_INLINE_
5078 # ifndef _FORTIFY_SOURCE
5079 # define _FORTIFY_SOURCE 0
5084 # If user asks to omit features, disable optional features that gnulib
5085 # might otherwise enable.
5086 if test "$with_features" = no && test "$enable_acl" != yes; then
5090 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5091 # it temporarily reverts them to their pre-pkg-config values,
5092 # because gnulib needs to work with both src (which uses the
5093 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5094 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5095 # and it therefore needs to run in an environment where LIBS does not
5096 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5097 # for some package unrelated to lib-src.
5100 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5101 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5102 gl_ASSERT_NO_GNULIB_POSIXCHECK
5103 gl_ASSERT_NO_GNULIB_TESTS
5108 if test "${opsys}" = "mingw32"; then
5109 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5110 # Remove unneeded switches from the value of CC that goes to Makefiles
5111 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5115 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5117 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5120 ## The -headerpad option tells ld (see man page) to leave room at the
5121 ## end of the header for adding load commands. Needed for dumping.
5122 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5123 ## architecture (where they are 78 bytes each). The actual number of
5124 ## load commands added is not consistent but normally ranges from
5125 ## about 14 to about 34. Setting it high gets us plenty of slop and
5126 ## only costs about 1.5K of wasted binary space.
5127 headerpad_extra=1000
5128 if test "$HAVE_NS" = "yes"; then
5129 libs_nsgui="-framework AppKit"
5130 if test "$NS_IMPL_COCOA" = "yes"; then
5131 libs_nsgui="$libs_nsgui -framework IOKit"
5136 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5138 ## This is here because src/Makefile.in did some extra fiddling around
5139 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5140 ## LD_SWITCH_SYSTEM_TEMACS instead,
5141 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5142 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5145 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5146 ## find X at run-time.
5147 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5148 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5149 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5150 ## had different values in configure (in ac_link) and src/Makefile.in.
5151 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5152 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5155 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5156 case "$canonical" in
5157 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5158 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5162 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5165 # -nopie fixes a temacs segfault on Gentoo, OpenBSD, and other systems
5166 # with "hardened" GCC configurations for some reason (Bug#18784).
5167 # We don't know why -nopie works, but not segfaulting is better than
5168 # segfaulting. Use ac_c_werror_flag=yes when trying -nopie, otherwise
5169 # clang keeps warning that it does not understand -nopie, and pre-4.6
5170 # GCC has a similar problem (Bug#20338).
5171 AC_CACHE_CHECK([whether $CC accepts -nopie],
5172 [emacs_cv_prog_cc_nopie],
5173 [emacs_save_c_werror_flag=$ac_c_werror_flag
5174 emacs_save_LDFLAGS=$LDFLAGS
5175 ac_c_werror_flag=yes
5176 LDFLAGS="$LDFLAGS -nopie"
5177 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
5178 [emacs_cv_prog_cc_nopie=yes],
5179 [emacs_cv_prog_cc_nopie=no])
5180 ac_c_werror_flag=$emacs_save_c_werror_flag
5181 LDFLAGS=$emacs_save_LDFLAGS])
5182 if test "$emacs_cv_prog_cc_nopie" = yes; then
5183 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie"
5186 if test x$ac_enable_profiling != x ; then
5188 *freebsd | gnu-linux) ;;
5189 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5193 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5195 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5197 ## Common for all window systems
5198 if test "$window_system" != "none"; then
5199 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5200 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5201 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5204 AC_SUBST(WINDOW_SYSTEM_OBJ)
5206 AH_TOP([/* GNU Emacs site configuration template file.
5208 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2016
5209 Free Software Foundation, Inc.
5211 This file is part of GNU Emacs.
5213 GNU Emacs is free software: you can redistribute it and/or modify
5214 it under the terms of the GNU General Public License as published by
5215 the Free Software Foundation, either version 3 of the License, or
5216 (at your option) any later version.
5218 GNU Emacs is distributed in the hope that it will be useful,
5219 but WITHOUT ANY WARRANTY; without even the implied warranty of
5220 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5221 GNU General Public License for more details.
5223 You should have received a copy of the GNU General Public License
5224 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5227 /* No code in Emacs #includes config.h twice, but some bits of code
5228 intended to work with other packages as well (like gmalloc.c)
5229 think they can include it as many times as they like. */
5230 #ifndef EMACS_CONFIG_H
5231 #define EMACS_CONFIG_H
5234 AH_BOTTOM([#include <conf_post.h>
5236 #endif /* EMACS_CONFIG_H */
5245 #### Report on what we decided to do.
5246 #### Report GTK as a toolkit, even if it doesn't use Xt.
5247 #### It makes printing result more understandable as using GTK sets
5248 #### toolkit_scroll_bars to yes by default.
5249 if test "${HAVE_GTK}" = "yes"; then
5250 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5253 if test $USE_ACL -ne 0; then
5254 ACL_SUMMARY="yes $LIB_ACL"
5259 emacs_standard_dirs='Standard dirs'
5261 Configured for '${canonical}'.
5263 Where should the build process find the source code? ${srcdir}
5264 What compiler should emacs be built with? ${CC} ${CFLAGS}
5265 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5266 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5267 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5268 What window system should Emacs use? ${window_system}
5269 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5270 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5271 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5274 emacs_config_features=
5275 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5276 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5277 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5281 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5282 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5283 *) eval val=\${HAVE_$opt} ;;
5286 xno|xnone|x) continue ;;
5291 GTK*|LUCID|MOTIF) opt=$val ;;
5296 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5299 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5300 [Summary of some of the main features enabled by configure.])
5302 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5303 Does Emacs use -lXpm? ${HAVE_XPM}
5304 Does Emacs use -ljpeg? ${HAVE_JPEG}
5305 Does Emacs use -ltiff? ${HAVE_TIFF}
5306 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5307 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5308 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5309 Does Emacs use cairo? ${HAVE_CAIRO}
5310 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5311 Does Emacs support sound? ${HAVE_SOUND}
5312 Does Emacs use -lgpm? ${HAVE_GPM}
5313 Does Emacs use -ldbus? ${HAVE_DBUS}
5314 Does Emacs use -lgconf? ${HAVE_GCONF}
5315 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5316 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5317 Does Emacs use access control lists? ${ACL_SUMMARY}
5318 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5319 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5320 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5321 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5322 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5323 Does Emacs use -lotf? ${HAVE_LIBOTF}
5324 Does Emacs use -lxft? ${HAVE_XFT}
5325 Does Emacs directly use zlib? ${HAVE_ZLIB}
5326 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5327 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5328 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5331 if test -n "${EMACSDATA}"; then
5332 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5334 if test -n "${EMACSDOC}"; then
5335 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5340 if test "$HAVE_NS" = "yes"; then
5342 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5343 The installed application will go to nextstep/Emacs.app and can be
5344 run or moved from there."])
5345 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5346 echo "The application will be fully self-contained."
5348 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5349 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5350 to run if these resources are not installed."])
5355 if test "${opsys}" = "cygwin"; then
5357 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5363 # Remove any trailing slashes in these variables.
5365 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5367 case $exec_prefix in
5368 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5371 if test "$HAVE_NS" = "yes"; then
5372 if test "$NS_IMPL_GNUSTEP" = yes; then
5373 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5374 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5375 ns_check_file=Resources/Info-gnustep.plist
5377 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5378 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5379 ns_check_file=Contents/Info.plist
5381 AC_SUBST(ns_check_file)
5384 dnl config.status treats $srcdir specially, so I think this is ok...
5385 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5387 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5388 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5389 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5390 dnl (else you get "no 'Makefile.am' found for any configure output").
5391 dnl This will work, but you get a config.status that is not quite right
5392 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5393 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5394 dnl it seems better to just live with the duplication.
5395 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5397 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5398 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5399 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5400 leim/Makefile nextstep/Makefile nt/Makefile])
5402 dnl test/ is not present in release tarfiles.
5403 opt_makefile=test/Makefile
5405 if test -f "$srcdir/$opt_makefile.in"; then
5406 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5407 dnl Again, it's best not to use a variable. Though you can add
5408 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5409 AC_CONFIG_FILES([test/Makefile])
5413 dnl The admin/ directory used to be excluded from tarfiles.
5414 if test -d $srcdir/admin; then
5415 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5416 AC_CONFIG_FILES([admin/charsets/Makefile])
5417 AC_CONFIG_FILES([admin/unidata/Makefile])
5418 AC_CONFIG_FILES([admin/grammars/Makefile])
5422 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5424 AC_SUBST(SUBDIR_MAKEFILES_IN)
5426 dnl You might wonder (I did) why epaths.h is generated by running make,
5427 dnl rather than just letting configure generate it from epaths.in.
5428 dnl One reason is that the various paths are not fully expanded (see above);
5429 dnl eg gamedir=${prefix}/var/games/emacs.
5430 dnl Secondly, the GNU Coding standards require that one should be able
5431 dnl to run 'make prefix=/some/where/else' and override the values set
5432 dnl by configure. This also explains the 'move-if-change' test and
5433 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5434 AC_CONFIG_COMMANDS([src/epaths.h], [
5435 if test "${opsys}" = "mingw32"; then
5436 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5438 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5439 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5440 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5442 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5443 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5445 AC_CONFIG_COMMANDS([src/.gdbinit], [
5446 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5447 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5451 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5452 dnl See comments for etc-refcards-emacsver.tex.
5453 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5454 dnl it is not quite the same. But we are generating in $srcdir.
5455 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5456 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5457 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5460 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5461 dnl then a directory etc/refcards is created in the build directory,
5462 dnl which is probably harmless, but confusing (in out-of-tree builds).
5463 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5464 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5465 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5466 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5467 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5472 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])