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, 1999-2015 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 25.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
135 dnl Fairly arbitrary, older versions might work too.
136 AM_INIT_AUTOMAKE(1.11)
138 dnl Canonicalize the configuration name.
144 if test -z "$host_alias"; then
146 # No --host argument was given to 'configure'; therefore $host
147 # was set to a default value based on the build platform. But
148 # this default value may be wrong if we are building from a
149 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
150 # Therefore, we'll try to get the right host platform from the
153 AC_MSG_CHECKING([the compiler's target])
154 if test -z "$CC"; then
159 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
163 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
164 Please explicitly provide --host.])
166 *) AC_MSG_WARN([Compiler reported non-standard target.
167 Defaulting to $host.])
170 AC_MSG_RESULT([$host])
173 . $srcdir/nt/mingw-cfg.site
177 # srcdir is an absolute path. In this case, force the format
178 # "/c/foo/bar", to simplify later conversions to native Windows
179 # format ("c:/foo/bar").
180 srcdir=`cd "${srcdir}" && pwd -W`
181 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
182 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
188 configuration=${host_alias-${build_alias-$host}}
190 dnl Support for --program-prefix, --program-suffix and
191 dnl --program-transform-name options
194 dnl It is important that variables on the RHS not be expanded here,
195 dnl hence the single quotes. This is per the GNU coding standards, see
196 dnl (autoconf) Installation Directory Variables
197 dnl See also epaths.h below.
198 lispdir='${datadir}/emacs/${version}/lisp'
199 standardlisppath='${lispdir}'
200 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
201 '${datadir}/emacs/site-lisp'
202 lisppath='${locallisppath}:${standardlisppath}'
203 etcdir='${datadir}/emacs/${version}/etc'
204 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
205 etcdocdir='${datadir}/emacs/${version}/etc'
206 gamedir='${localstatedir}/games/emacs'
208 dnl Special option to disable the most of other options.
210 [AS_HELP_STRING([--without-all],
211 [omit almost all features and build
212 small executable with minimal dependencies])],
213 [with_features=$withval],
216 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
217 dnl Create a new --with option that defaults to being disabled.
218 dnl NAME is the base name of the option. The shell variable with_NAME
219 dnl will be set to either the user's value (if the option is
220 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
221 dnl option is not specified). Note that the shell variable name is
222 dnl constructed as autoconf does, by replacing non-alphanumeric
223 dnl characters with "_".
224 dnl HELP-STRING is the help text for the option.
225 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
226 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
227 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
230 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
231 dnl Create a new --with option that defaults to $with_features.
232 dnl NAME is the base name of the option. The shell variable with_NAME
233 dnl will be set either to 'no' (for a plain --without-NAME) or to
234 dnl 'yes' (if the option is not specified). Note that the shell
235 dnl variable name is constructed as autoconf does, by replacing
236 dnl non-alphanumeric characters with "_".
237 dnl HELP-STRING is the help text for the option.
238 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
239 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
240 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
243 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
244 if test "$with_pop" = yes; then
245 AC_DEFINE(MAIL_USE_POP)
247 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
249 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
250 if test "$with_kerberos" != no; then
253 AH_TEMPLATE(KERBEROS,
254 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
256 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
257 if test "${with_kerberos5}" != no; then
258 if test "${with_kerberos}" = no; then
262 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
265 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
266 dnl FIXME hesiod support may not be present, so it seems like an error
267 dnl to define, or at least use, this unconditionally.
268 if test "$with_hesiod" != no; then
269 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
272 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
273 if test "$with_mail_unlink" != no; then
274 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
277 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
278 [string giving default POP mail host])],
279 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
281 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
282 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
283 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
284 [ case "${withval}" in
285 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
286 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
287 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
292 [with_sound=$with_features])
294 dnl FIXME currently it is not the last.
295 dnl This should be the last --with option, because --with-x is
296 dnl added later on when we find the file name of X, and it's best to
297 dnl keep them together visually.
298 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
299 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
300 [ case "${withval}" in
301 y | ye | yes ) val=gtk ;;
303 l | lu | luc | luci | lucid ) val=lucid ;;
304 a | at | ath | athe | athen | athena ) val=athena ;;
305 m | mo | mot | moti | motif ) val=motif ;;
306 g | gt | gtk ) val=gtk ;;
310 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
311 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
312 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
313 'athena' and 'lucid' are synonyms.])
319 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit); allows buffer and string size up to 2GB on 32-bit hosts, at the cost of 10% to 30% slowdown of Lisp interpreter and larger memory footprint])
320 if test "$with_wide_int" = yes; then
321 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
324 dnl _ON results in a '--without' option in the --help output, so
325 dnl the help text should refer to "don't compile", etc.
326 with_xpm_set=${with_xpm+set}
327 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
328 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
329 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
330 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
331 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
332 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
333 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing])
334 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
335 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
337 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
338 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
339 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
341 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
342 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
343 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
344 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
345 [use Nextstep (OS X Cocoa or GNUstep) windowing system.
346 On by default on Mac OS X.])],[],[with_ns=maybe])
347 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
349 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
350 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
351 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
352 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
353 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
354 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
355 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
356 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
358 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
359 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
360 [ case "${withval}" in
361 y | ye | yes ) val=yes ;;
363 g | gf | gfi | gfil | gfile ) val=gfile ;;
364 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
365 w | w3 | w32 ) val=w32 ;;
366 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
367 this option's value should be 'yes', 'no', 'gfile', 'inotify' or 'w32'.
368 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
369 otherwise for the first of 'inotify' or 'gfile' that is usable.])
372 with_file_notification=$val
374 [with_file_notification=$with_features])
376 ## For the times when you want to build Emacs but don't have
377 ## a suitable makeinfo, and can live without the manuals.
378 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
379 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
381 ## This might be a 'configure' arg.
382 AC_SUBST([ACLOCAL_PATH])
384 ## Makefile.in needs the cache file name.
387 ## This is an option because I do not know if all info/man support
388 ## compressed files, nor how to test if they do so.
389 OPTION_DEFAULT_ON([compress-install],
390 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
391 make GZIP_PROG= install])
393 AC_ARG_WITH(gameuser,dnl
394 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
395 [user for shared game score files.
396 An argument prefixed by ':' specifies a group instead.])])
399 # We don't test if we can actually chown/chgrp here, because configure
400 # may run without root privileges. lib-src/Makefile.in will handle
401 # any errors due to missing user/group gracefully.
402 case ${with_gameuser} in
404 "" | yes) gamegroup=games ;;
405 :*) gamegroup=${with_gameuser#:} ;;
406 *) gameuser=${with_gameuser} ;;
409 AC_ARG_WITH([gnustep-conf],dnl
410 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
411 [name of GNUstep configuration file to use on systems where the command
412 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
413 /etc/GNUstep/GNUstep.conf])])
414 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
415 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
416 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
417 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
419 AC_ARG_ENABLE(ns-self-contained,
420 [AS_HELP_STRING([--disable-ns-self-contained],
421 [disable self contained build under NeXTstep])],
422 EN_NS_SELF_CONTAINED=$enableval,
423 EN_NS_SELF_CONTAINED=yes)
426 AC_ARG_ENABLE(locallisppath,
427 [AS_HELP_STRING([--enable-locallisppath=PATH],
428 [directories Emacs should search for lisp files specific
430 if test "${enableval}" = "no"; then
432 elif test "${enableval}" != "yes"; then
433 locallisppath=${enableval} locallisppathset=yes
436 AC_ARG_ENABLE(checking,
437 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
438 [enable expensive run-time checks. With LIST,
439 enable only specific categories of checks.
440 Categories are: all,yes,no.
441 Flags are: stringbytes, stringoverrun, stringfreelist,
442 xmallocoverrun, conslist, glyphs])],
443 [ac_checking_flags="${enableval}"],[])
444 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
445 for check in $ac_checking_flags
448 # these set all the flags to specific states
449 yes) ac_enable_checking=1 ;;
450 no) ac_enable_checking= ;
451 ac_gc_check_stringbytes= ;
452 ac_gc_check_string_overrun= ;
453 ac_gc_check_string_free_list= ;
454 ac_xmalloc_overrun= ;
455 ac_gc_check_cons_list= ;
457 all) ac_enable_checking=1 ;
458 ac_gc_check_stringbytes=1 ;
459 ac_gc_check_string_overrun=1 ;
460 ac_gc_check_string_free_list=1 ;
461 ac_xmalloc_overrun=1 ;
462 ac_gc_check_cons_list=1 ;
464 # these enable particular checks
465 stringbytes) ac_gc_check_stringbytes=1 ;;
466 stringoverrun) ac_gc_check_string_overrun=1 ;;
467 stringfreelist) ac_gc_check_string_free_list=1 ;;
468 xmallocoverrun) ac_xmalloc_overrun=1 ;;
469 conslist) ac_gc_check_cons_list=1 ;;
470 glyphs) ac_glyphs_debug=1 ;;
471 *) AC_MSG_ERROR(unknown check category $check) ;;
476 if test x$ac_enable_checking != x ; then
477 AC_DEFINE(ENABLE_CHECKING, 1,
478 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
480 if test x$ac_gc_check_stringbytes != x ; then
481 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
482 [Define this temporarily to hunt a bug. If defined, the size of
483 strings is redundantly recorded in sdata structures so that it can
484 be compared to the sizes recorded in Lisp strings.])
486 if test x$ac_gc_check_string_overrun != x ; then
487 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
488 [Define this to check for short string overrun.])
490 if test x$ac_gc_check_string_free_list != x ; then
491 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
492 [Define this to check the string free list.])
494 if test x$ac_xmalloc_overrun != x ; then
495 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
496 [Define this to check for malloc buffer overrun.])
498 if test x$ac_gc_check_cons_list != x ; then
499 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
500 [Define this to check for errors in cons list.])
502 if test x$ac_glyphs_debug != x ; then
503 AC_DEFINE(GLYPH_DEBUG, 1,
504 [Define this to enable glyphs debugging code.])
507 AC_ARG_ENABLE(check-lisp-object-type,
508 [AS_HELP_STRING([--enable-check-lisp-object-type],
509 [enable compile time checks for the Lisp_Object data type.
510 This is useful for development for catching certain types of bugs.])],
511 if test "${enableval}" != "no"; then
512 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
513 [Define this to enable compile time checks for the Lisp_Object data type.])
517 dnl The name of this option is unfortunate. It predates, and has no
518 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
519 dnl Actually, it stops it working.
520 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
521 AC_ARG_ENABLE(profiling,
522 [AS_HELP_STRING([--enable-profiling],
523 [build emacs with low-level, gprof profiling support.
524 Mainly useful for debugging Emacs itself. May not work on
525 all platforms. Stops profiler.el working.])],
526 [ac_enable_profiling="${enableval}"],[])
527 if test x$ac_enable_profiling != x ; then
528 PROFILING_CFLAGS="-DPROFILING=1 -pg"
532 AC_SUBST(PROFILING_CFLAGS)
534 AC_ARG_ENABLE(autodepend,
535 [AS_HELP_STRING([--enable-autodepend],
536 [automatically generate dependencies to .h-files.
537 Requires gcc, enabled if found.])],
538 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
540 AC_ARG_ENABLE(gtk-deprecation-warnings,
541 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
542 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
543 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
545 dnl This used to use changequote, but, apart from 'changequote is evil'
546 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
547 dnl the great gob of text. Thus it's not processed for possible expansion.
548 dnl Just make sure the brackets remain balanced.
550 dnl Since Emacs can't find matching pairs of quotes, boundaries are
551 dnl indicated by comments.
555 ### If you add support for a new configuration, add code to this
556 ### switch statement to recognize your configuration name and select
557 ### the appropriate opsys.
559 ### As far as handling version numbers on operating systems is
560 ### concerned, make sure things will fail in a fixable way. If
561 ### /etc/MACHINES doesn't say anything about version numbers, be
562 ### prepared to handle anything reasonably. If version numbers
563 ### matter, be sure /etc/MACHINES says something about it.
566 case "${canonical}" in
568 ## GNU/Linux and similar ports
583 ## FreeBSD kernel + glibc based userland
594 *-*-openbsd* | *-*-mirbsd* )
598 ## Apple Darwin / Mac OS X
600 case "${canonical}" in
601 *-apple-darwin[0-9].*) unported=yes ;;
602 i[3456]86-* | x86_64-* ) ;;
606 ## Use fink packages if available.
607 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
608 ## if test -d /sw/include && test -d /sw/lib; then
609 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
610 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
614 ## Chromium Native Client
624 ## HP 9000 series 700 and 800, running HP/UX
628 hppa*-hp-hpux1[1-9]* )
630 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
634 rs6000-ibm-aix4.[23]* )
637 powerpc-ibm-aix4.[23]* )
640 rs6000-ibm-aix[56]* )
643 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
647 ## Silicon Graphics machines
651 # Without defining _LANGUAGE_C, things get masked out in the headers
652 # so that, for instance, grepping for 'free' in stdlib.h fails and
653 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
654 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
659 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
660 | x86_64-*-solaris2* | x86_64-*-sunos5*)
661 case "${canonical}" in
663 amd64-*-*|x86_64-*-*) ;;
667 case "${canonical}" in
668 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
670 emacs_check_sunpro_c=yes
672 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
673 ## Note that Emacs 23.1's NEWS said the following would be dropped.
674 *-sunos5.6* | *-solaris2.6* )
678 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
679 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
681 emacs_check_sunpro_c=yes
684 ## Watch out for a compiler that we know will not work.
685 case "${canonical}" in
686 *-solaris* | *-sunos5* )
687 if [ "x$CC" = x/usr/ucb/cc ]; then
688 ## /usr/ucb/cc doesn't work;
689 ## we should find some other compiler that does work.
697 ## Intel 386 machines where we don't care about the manufacturer.
699 case "${canonical}" in
700 *-darwin* ) opsys=darwin ;;
703 # MinGW overrides and adds some system headers in nt/inc.
704 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
706 *-sysv4.2uw* ) opsys=unixware ;;
707 *-sysv5uw* ) opsys=unixware ;;
708 *-sysv5OpenUNIX* ) opsys=unixware ;;
709 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
715 case "${canonical}" in
718 # MinGW overrides and adds some system headers in nt/inc.
719 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
721 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
730 ### If the code above didn't choose an operating system, just choose
731 ### an operating system based on the configuration name. You really
732 ### only want to use this when you have no idea what the right
733 ### operating system is; if you know what operating systems a machine
734 ### runs, it's cleaner to make it explicit in the case statement
736 if test x"${opsys}" = x; then
737 case "${canonical}" in
738 *-gnu* ) opsys=gnu ;;
748 if test $unported = yes; then
749 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
750 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
751 Check 'etc/MACHINES' for recognized configuration names.])
754 #### Choose a compiler.
756 dnl Don't bother to test for C89.
757 AC_DEFUN([_AC_PROG_CC_C89], [$2])
759 dnl Sets GCC=yes if using gcc.
760 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
761 if test -n "$XCRUN"; then
762 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
763 test -n "$AR" && export AR
766 dnl Emacs needs C99 or later.
771 if test x$GCC = xyes; then
772 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
774 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
777 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
778 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
779 dnl that clash with MinGW.
780 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
782 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
783 AC_DEFUN([gl_CRYPTO_CHECK])
784 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
785 # as we don't use them.
786 AC_DEFUN([gl_FCNTL_O_FLAGS])
787 # Avoid gnulib's test for pthread_sigmask.
789 for func in $ac_func_list; do
790 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
793 # Use the system putenv even if it lacks GNU features, as we don't need them,
794 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
795 AC_CHECK_FUNCS_ONCE([putenv])
796 AC_DEFUN([gl_FUNC_PUTENV],
797 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
799 # Initialize gnulib right after choosing the compiler.
800 dnl Amongst other things, this sets AR and ARFLAGS.
803 if test "$ac_test_CFLAGS" != set; then
804 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
805 # if -g3 works and the user does not specify CFLAGS.
806 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
809 emacs_g3_CFLAGS='-g3';;
811 emacs_g3_CFLAGS='-g3 -O2';;
815 if test -n "$emacs_g3_CFLAGS"; then
816 emacs_save_CFLAGS=$CFLAGS
817 CFLAGS=$emacs_g3_CFLAGS
818 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
819 [emacs_cv_prog_cc_g3],
820 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
821 [emacs_cv_prog_cc_g3=yes],
822 [emacs_cv_prog_cc_g3=no])])
823 if test $emacs_cv_prog_cc_g3 != yes; then
824 CFLAGS=$emacs_save_CFLAGS
826 if test $opsys = mingw32; then
827 CFLAGS="$CFLAGS -gdwarf-2"
834 # No optimization flag was inferred for this non-GCC compiler.
835 # Try -O. This is needed for xlc on AIX; see Bug#14258.
836 emacs_save_CFLAGS=$CFLAGS
837 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
839 AC_CACHE_CHECK([whether $CC accepts -O],
840 [emacs_cv_prog_cc_o],
841 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
842 [emacs_cv_prog_cc_o=yes],
843 [emacs_cv_prog_cc_o=no])])
844 if test $emacs_cv_prog_cc_o != yes; then
845 CFLAGS=$emacs_save_CFLAGS
850 AC_ARG_ENABLE([gcc-warnings],
851 [AS_HELP_STRING([--enable-gcc-warnings],
852 [turn on lots of GCC warnings/errors. This is intended for
853 developers, and may generate false alarms when used
854 with older or non-GNU development tools.])],
857 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
859 gl_gcc_warnings=$enableval],
863 # clang is unduly picky about some things.
864 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
871 [emacs_cv_clang=yes],
872 [emacs_cv_clang=no])])
874 # When compiling with GCC, prefer -isystem to -I when including system
875 # include files, to avoid generating useless diagnostics for the files.
876 if test "$gl_gcc_warnings" != yes; then
878 if test "$emacs_cv_clang" = yes
880 # Turn off some warnings if supported.
881 gl_WARN_ADD([-Wno-switch])
882 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
883 gl_WARN_ADD([-Wno-pointer-sign])
884 gl_WARN_ADD([-Wno-string-plus-int])
885 gl_WARN_ADD([-Wno-unknown-attributes])
890 # This, $nw, is the list of warnings we disable.
893 case $with_x_toolkit in
894 lucid | athena | motif)
895 # Old toolkits mishandle 'const'.
896 nw="$nw -Wwrite-strings"
899 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
902 AC_SUBST([WERROR_CFLAGS])
904 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
905 nw="$nw -Woverlength-strings" # Not a problem these days
906 nw="$nw -Wformat-nonliteral" # we do this a lot
907 nw="$nw -Wvla" # Emacs uses <vla.h>.
908 nw="$nw -Wswitch-default" # Too many warnings for now
909 nw="$nw -Winline" # OK to ignore 'inline'
910 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
911 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
912 # signed overflow has undefined behavior
913 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
914 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
915 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
917 # Emacs doesn't care about shadowing; see
918 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
921 # Emacs's use of alloca inhibits protecting the stack.
922 nw="$nw -Wstack-protector"
924 # Emacs's use of partly-const functions such as Fgnutls_available_p
925 # make this option problematic.
926 nw="$nw -Wsuggest-attribute=const"
928 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
929 # option problematic.
930 nw="$nw -Wsuggest-attribute=pure"
932 # This part is merely for shortening the command line,
933 # since -Wall implies -Wswitch.
936 # This part is merely for shortening the command line,
937 # since -Wno-FOO needs to be added below regardless.
938 nw="$nw -Wmissing-field-initializers"
939 nw="$nw -Wtype-limits"
940 nw="$nw -Wunused-parameter"
942 if test $emacs_cv_clang = yes; then
943 nw="$nw -Wcast-align"
946 gl_MANYWARN_ALL_GCC([ws])
947 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
951 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
952 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
953 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
954 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
955 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
956 gl_WARN_ADD([-Wno-format-nonliteral])
958 # More things that clang is unduly picky about.
959 if test $emacs_cv_clang = yes; then
960 gl_WARN_ADD([-Wno-format-extra-args])
961 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
962 gl_WARN_ADD([-Wno-unused-command-line-argument])
963 gl_WARN_ADD([-Wno-unused-value])
966 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
967 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
968 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
969 [/* Enable compile-time and run-time bounds-checking, and some warnings,
970 without upsetting glibc 2.15+. */
971 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
972 && defined __OPTIMIZE__ && __OPTIMIZE__)
973 # define _FORTIFY_SOURCE 2
977 # We use a slightly smaller set of warning options for lib/.
978 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
980 nw="$nw -Wunused-macros"
982 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
983 AC_SUBST([GNULIB_WARN_CFLAGS])
993 AC_ARG_ENABLE(link-time-optimization,
994 [AS_HELP_STRING([--enable-link-time-optimization],
995 [build emacs with link-time optimization.
996 This requires GCC 4.5.0 or later, or clang.
997 (Note that clang support is experimental - see INSTALL.)
998 It also makes Emacs harder to debug, and when we tried it
999 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1000 recommended for typical use.])],
1001 if test "${enableval}" != "no"; then
1003 if test $emacs_cv_clang = yes; then
1004 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1005 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1006 if test -x "$GOLD_PLUGIN"; then
1009 elif test x$GCC = xyes; then
1010 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1011 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1012 if test x$CPUS != x; then
1018 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1020 if test -z "$LTO"; then
1024 CFLAGS="$CFLAGS $LTO"
1025 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1026 [ac_lto_supported=yes], [ac_lto_supported=no])
1027 CFLAGS="$old_CFLAGS"
1029 AC_MSG_RESULT([$ac_lto_supported])
1030 if test "$ac_lto_supported" = "yes"; then
1031 CFLAGS="$CFLAGS $LTO"
1032 if test x$emacs_cv_clang = xyes; then
1033 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1034 # WARNING: 'ar --plugin ...' doesn't work without
1035 # command, so plugin name is appended to ARFLAGS.
1036 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1037 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1039 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1040 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1041 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1042 dnl dump core on Fedora 20, so play it safe for now.
1043 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1044 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1049 dnl Prefer silent make output. For verbose output, use
1050 dnl 'configure --disable-silent-rules' or 'make V=1' .
1051 AM_SILENT_RULES([yes])
1052 dnl Port to Automake 1.11.
1053 dnl This section can be removed once we assume Automake 1.14 or later.
1054 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1055 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1057 AM_SUBST_NOTMAKE([AM_V])
1058 AC_SUBST([AM_DEFAULT_V])
1059 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1060 AC_SUBST([AM_DEFAULT_VERBOSITY])
1062 dnl Some other nice autoconf tests.
1063 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1066 dnl if test "x$RANLIB" = x; then
1071 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1072 dnl can be made to directories. This is not relevant for our usage, and
1073 dnl excludes some cases that work fine for us. Eg MS Windows or files
1074 dnl hosted on AFS, both examples where simple links work, but links to
1075 dnl directories fail. We use a cut-down version instead.
1078 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1079 rm -f conf$$ conf$$.file
1081 LN_S_FILEONLY='cp -p'
1083 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1084 dnl random program in the current directory.
1085 if (echo >conf$$.file) 2>/dev/null; then
1086 if ln -s conf$$.file conf$$ 2>/dev/null; then
1087 if test "$opsys" = "mingw32"; then
1088 LN_S_FILEONLY='/bin/ln -s'
1090 LN_S_FILEONLY='ln -s'
1092 elif ln conf$$.file conf$$ 2>/dev/null; then
1093 if test "$opsys" = "mingw32"; then
1094 LN_S_FILEONLY=/bin/ln
1101 rm -f conf$$ conf$$.file
1103 if test "$LN_S_FILEONLY" = "ln -s"; then
1104 AC_MSG_RESULT([yes])
1106 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1109 AC_SUBST(LN_S_FILEONLY)
1112 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1113 dnl doesn't support links to directories, as in "ln file dir". But that
1114 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1115 dnl executables at "make install" time.
1116 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1117 dnl for more details.
1118 if test "$opsys" = "mingw32"; then
1122 dnl On some Debian versions, "install-info" prints irritating messages
1123 dnl "This is not dpkg install-info anymore, but GNU install-info"
1124 dnl if called via an absolute file name.
1125 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1126 dnl Sadly some people may have an old ginstall-info installed on
1127 dnl non-Debian systems, so we can't use this.
1128 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1129 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1131 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1132 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1133 dnl Don't use GZIP, which is used by gzip for additional parameters.
1134 AC_PATH_PROG(GZIP_PROG, gzip)
1136 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1137 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1139 if test $opsys = gnu-linux; then
1140 AC_PATH_PROG(PAXCTL, paxctl,,
1141 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1142 if test "X$PAXCTL" != X; then
1143 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1144 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1145 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1146 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1149 if test "${SETFATTR+set}" != set; then
1150 AC_CACHE_CHECK([for setfattr],
1151 [emacs_cv_prog_setfattr],
1153 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1154 emacs_cv_prog_setfattr=yes
1156 emacs_cv_prog_setfattr=no
1158 if test "$emacs_cv_prog_setfattr" = yes; then
1164 AC_SUBST([SETFATTR])
1168 ## Need makeinfo >= 4.7 (?) to build the manuals.
1169 if test "$MAKEINFO" != "no"; then
1170 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1173 case `($MAKEINFO --version) 2>/dev/null` in
1174 *' (GNU texinfo) '4.[[7-9]]* | \
1175 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1176 *' (GNU texinfo) '[[5-9]]* | \
1177 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1182 ## Makeinfo is unusual. For a released Emacs, the manuals are
1183 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1184 ## therefore in the category of "special tools" not normally required, which
1185 ## configure does not have to check for (eg autoconf itself).
1186 ## In a repository checkout on the other hand, the manuals are not included.
1187 ## So makeinfo is a requirement to build from the repository, and configure
1188 ## should test for it as it does for any other build requirement.
1189 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1190 ## with pre-built manuals, from a repository checkout.
1193 if test "$MAKEINFO" = "no"; then
1195 if test "x${with_makeinfo}" = "xno"; then
1197 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1198 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1199 source tree does not seem to have pre-built manuals in the 'info' directory.
1200 Either install a suitable version of makeinfo, or re-run configure
1201 with the '--without-makeinfo' option to build without the manuals.] )
1204 AC_SUBST(HAVE_MAKEINFO)
1206 if test $opsys = mingw32; then
1207 DOCMISC_W32=efaq-w32
1211 AC_SUBST(DOCMISC_W32)
1213 dnl Add our options to ac_link now, after it is set up.
1215 if test x$GCC = xyes; then
1216 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1217 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1219 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1220 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1223 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1224 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1225 dnl (Don't use '-z nocombreloc' as -z takes no arg on Irix.)
1226 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1227 dnl if not built to support GNU ld.
1229 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1230 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1231 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1232 dnl Eg "make LDFLAGS=... all" could run into problems,
1233 dnl http://bugs.debian.org/684788
1234 dnl * unnecessary, since temacs is the only thing that actually needs it.
1235 dnl Indeed this is where it was originally, prior to:
1236 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1237 late_LDFLAGS="$LDFLAGS"
1238 if test x$GCC = xyes; then
1239 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1241 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1244 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1246 AC_MSG_CHECKING([for -znocombreloc])
1247 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1248 [AC_MSG_RESULT(yes)],
1249 LDFLAGS_NOCOMBRELOC=
1250 [AC_MSG_RESULT(no)])
1252 LDFLAGS="$late_LDFLAGS"
1254 AC_CACHE_CHECK([whether addresses are sanitized],
1255 [emacs_cv_sanitize_address],
1258 [[#ifndef __has_feature
1259 #define __has_feature(f) 0
1261 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1263 error "Addresses are not sanitized.";
1266 [emacs_cv_sanitize_address=yes],
1267 [emacs_cv_sanitize_address=no])])
1269 dnl The function dump-emacs will not be defined and temacs will do
1270 dnl (load "loadup") automatically unless told otherwise.
1271 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1273 nacl) CANNOT_DUMP=yes ;;
1276 if test "$CANNOT_DUMP" = "yes"; then
1277 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1278 elif test "$emacs_cv_sanitize_address" = yes; then
1279 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1282 AC_SUBST(CANNOT_DUMP)
1285 UNEXEC_OBJ=unexelf.o
1287 # MSDOS uses unexcoff.o
1289 UNEXEC_OBJ=unexaix.o
1295 UNEXEC_OBJ=unexmacosx.o
1298 UNEXEC_OBJ=unexhp9k800.o
1301 UNEXEC_OBJ=unexw32.o
1304 # Use the Solaris dldump() function, called from unexsol.c, to dump
1305 # emacs, instead of the generic ELF dump code found in unexelf.c.
1306 # The resulting binary has a complete symbol table, and is better
1307 # for debugging and other observability tools (debuggers, pstack, etc).
1309 # If you encounter a problem using dldump(), please consider sending
1310 # a message to the OpenSolaris tools-linking mailing list:
1311 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1313 # It is likely that dldump() works with older Solaris too, but this has
1314 # not been tested, so for now this change is for Solaris 10 or newer.
1315 UNEXEC_OBJ=unexsol.o
1322 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1323 ## The system compiler, GCC, has apparently been modified to not
1324 ## look there, contrary to what a stock GCC would do.
1325 ### It's not our place to do this. See bug#10313#17.
1326 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1331 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1332 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1336 ### It's not our place to do this. See bug#10313#17.
1337 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1342 ## Han Boetes <han@boetes.org> says this is necessary,
1343 ## otherwise Emacs dumps core on elf systems.
1344 LD_SWITCH_SYSTEM="-Z"
1347 AC_SUBST(LD_SWITCH_SYSTEM)
1349 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1351 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1352 ## which has not been defined yet. When this was handled with cpp,
1353 ## it was expanded to null when configure sourced the s/*.h file.
1354 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1355 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1356 ## (or somesuch), but because it is supposed to go at the _front_
1357 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1358 ## Compare with the gnu-linux case below, which added to the end
1359 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1360 ## LD_SWITCH_SYSTEM_TEMACS.
1363 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1370 AC_CHECK_DECL([__ELF__])
1371 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1372 ## With ELF, make sure that all common symbols get allocated to in the
1373 ## data section. Otherwise, the dump of temacs may miss variables in
1374 ## the shared library that have been initialized. For example, with
1375 ## GNU libc, __malloc_initialized would normally be resolved to the
1376 ## shared library's .bss section, which is fatal.
1377 if test "x$GCC" = "xyes"; then
1378 C_SWITCH_MACHINE="-fno-common"
1380 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1383 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1384 dnl albeit under the mistaken assumption that said file
1385 dnl was no longer used.
1386 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1390 AC_SUBST(C_SWITCH_MACHINE)
1392 AC_SUBST(UNEXEC_OBJ)
1395 ## Some programs in src produce warnings saying certain subprograms
1396 ## are too complex and need a MAXMEM value greater than 2000 for
1397 ## additional optimization. --nils@exp-math.uni-essen.de
1398 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1399 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1400 if test "$opsys" = "mingw32"; then
1401 case "$canonical" in
1402 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1403 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1406 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1407 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1408 AC_SUBST(C_SWITCH_SYSTEM)
1413 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1414 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1416 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1418 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1420 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1422 ## Motif needs -lgen.
1423 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1426 AC_SUBST(LIBS_SYSTEM)
1428 ### Make sure subsequent tests use flags consistent with the build flags.
1430 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1431 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1433 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1436 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1437 AC_DEFUN([AC_TYPE_SIZE_T])
1438 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1439 AC_DEFUN([AC_TYPE_UID_T])
1441 # sqrt and other floating-point functions such as fmod and frexp
1442 # are found in -lm on many systems.
1444 AC_SEARCH_LIBS([sqrt], [m])
1445 if test "X$LIBS" = "X$OLD_LIBS"; then
1448 LIB_MATH=$ac_cv_search_sqrt
1452 dnl Current possibilities handled by sed (aix4-2 -> aix,
1453 dnl gnu-linux -> gnu/linux, etc.):
1454 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1455 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1456 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1463 ## Adding -lm confuses the dynamic linker, so omit it.
1466 freebsd | dragonfly )
1467 SYSTEM_TYPE=berkeley-unix
1469 gnu-linux | gnu-kfreebsd )
1471 hpux10-20 | hpux11 )
1475 SYSTEM_TYPE=windows-nt
1477 dnl NB this may be adjusted below.
1479 SYSTEM_TYPE=berkeley-unix
1483 SYSTEM_TYPE=usg-unix-v
1489 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1490 [The type of system you are compiling for; sets 'system-type'.])
1493 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1494 pre_PKG_CONFIG_LIBS=$LIBS
1496 PKG_PROG_PKG_CONFIG(0.9.0)
1498 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1499 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1500 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1501 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1502 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1503 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1505 AC_DEFUN([EMACS_CHECK_MODULES],
1506 [PKG_CHECK_MODULES([$1], [$2],
1507 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1508 m4_default([$3], [HAVE_$1=yes])],
1509 [m4_default([$4], [HAVE_$1=no])])])
1512 if test "${with_sound}" != "no"; then
1513 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1514 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1515 have_sound_header=yes, [], [
1517 #define WIN32_LEAN_AND_MEAN
1518 #include <windows.h>
1521 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1522 AC_MSG_ERROR([OSS sound support requested but not found.])
1524 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1525 # Emulation library used on NetBSD.
1526 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1527 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1528 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1529 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1530 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1534 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1536 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1537 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1538 if test $HAVE_ALSA = yes; then
1539 SAVE_CFLAGS="$CFLAGS"
1541 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1542 LIBS="$ALSA_LIBS $LIBS"
1543 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1544 emacs_alsa_normal=yes,
1545 emacs_alsa_normal=no)
1546 if test "$emacs_alsa_normal" != yes; then
1547 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1548 [[snd_lib_error_set_handler (0);]])],
1549 emacs_alsa_subdir=yes,
1550 emacs_alsa_subdir=no)
1551 if test "$emacs_alsa_subdir" != yes; then
1552 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1554 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1557 CFLAGS="$SAVE_CFLAGS"
1559 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1560 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1561 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1562 elif test "${with_sound}" = "alsa"; then
1563 AC_MSG_ERROR([ALSA sound support requested but not found.])
1565 fi dnl with_sound = alsa|yes
1567 dnl Define HAVE_SOUND if we have sound support. We know it works and
1568 dnl compiles only on the specified platforms. For others, it
1569 dnl probably doesn't make sense to try.
1570 dnl FIXME So surely we should bypass this whole section if not using
1571 dnl one of these platforms?
1572 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1574 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1575 dnl Adjust the --with-sound help text if you change this.
1576 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1577 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1583 AC_SUBST(CFLAGS_SOUND)
1586 dnl checks for header files
1587 AC_CHECK_HEADERS_ONCE(
1592 sys/utsname.h pwd.h utmp.h util.h)
1594 AC_MSG_CHECKING(if personality LINUX32 can be set)
1595 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1596 emacs_cv_personality_linux32=yes,
1597 emacs_cv_personality_linux32=no)
1598 AC_MSG_RESULT($emacs_cv_personality_linux32)
1600 if test $emacs_cv_personality_linux32 = yes; then
1601 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1602 [Define to 1 if personality LINUX32 can be set.])
1605 # Note that Solaris has sys/sysinfo.h which defines struct
1606 # sysinfo as well. To make sure that we're using GNU/Linux
1607 # sysinfo, we explicitly set one of its fields.
1608 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1609 AC_MSG_CHECKING([if Linux sysinfo may be used])
1610 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1611 [[struct sysinfo si;
1614 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1615 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1616 if test $emacs_cv_linux_sysinfo = yes; then
1617 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1618 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1619 [[struct sysinfo si; return si.mem_unit]])],
1620 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1621 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1625 dnl On Solaris 8 there's a compilation warning for term.h because
1626 dnl it doesn't define 'bool'.
1627 AC_CHECK_HEADERS(term.h, , , -)
1629 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1631 if test $ac_cv_have_decl_sys_siglist != yes; then
1632 # For Tru64, at least:
1633 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1638 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1639 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1640 #if HAVE_SYS_SOCKET_H
1641 #include <sys/socket.h>
1643 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1644 #if HAVE_SYS_SOCKET_H
1645 #include <sys/socket.h>
1647 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1648 #if HAVE_SYS_SOCKET_H
1649 #include <sys/socket.h>
1652 dnl checks for structure members
1653 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1654 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1655 struct ifreq.ifr_addr,
1656 struct ifreq.ifr_addr.sa_len], , ,
1657 [AC_INCLUDES_DEFAULT
1658 #if HAVE_SYS_SOCKET_H
1659 #include <sys/socket.h>
1665 dnl Check for endianness.
1666 dnl AC_C_BIGENDIAN is done by gnulib.
1668 dnl check for Make feature
1671 dnl check if we have GCC and autodepend is on.
1672 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1673 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1674 SAVE_CFLAGS="$CFLAGS"
1675 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1676 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1677 CFLAGS="$SAVE_CFLAGS"
1678 test -f deps.d || ac_enable_autodepend=no
1680 AC_MSG_RESULT([$ac_enable_autodepend])
1681 if test $ac_enable_autodepend = yes; then
1685 AC_SUBST(AUTO_DEPEND)
1687 dnl checks for operating system services
1688 AC_SYS_LONG_FILE_NAMES
1690 #### Choose a window system.
1692 ## We leave window_system equal to none if
1693 ## we end up building without one. Any new window system should
1694 ## set window_system to an appropriate value and add objects to
1695 ## window-system-specific substs.
1699 if test "$no_x" != yes; then
1703 LD_SWITCH_X_SITE_RPATH=
1704 if test "${x_libraries}" != NONE; then
1705 if test -n "${x_libraries}"; then
1706 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1707 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1708 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1711 x_default_search_path=""
1712 x_search_path=${x_libraries}
1713 if test -z "${x_search_path}"; then
1714 x_search_path=/usr/lib
1716 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1717 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1719 ${x_library}/X11/%L/%T/%N%C%S:\
1720 ${x_library}/X11/%l/%T/%N%C%S:\
1721 ${x_library}/X11/%T/%N%C%S:\
1722 ${x_library}/X11/%L/%T/%N%S:\
1723 ${x_library}/X11/%l/%T/%N%S:\
1724 ${x_library}/X11/%T/%N%S"
1725 if test x"${x_default_search_path}" = x; then
1726 x_default_search_path=${x_search_path}
1728 x_default_search_path="${x_search_path}:${x_default_search_path}"
1732 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1734 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1735 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1738 if test x"${x_includes}" = x; then
1739 bitmapdir=/usr/include/X11/bitmaps
1741 # accumulate include directories that have X11 bitmap subdirectories
1743 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1744 if test -d "${bmd}/X11/bitmaps"; then
1745 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1747 if test -d "${bmd}/bitmaps"; then
1748 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1751 bitmapdir=${bmd_acc#:}
1754 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1756 NS_GNUSTEP_CONFIG=no
1759 tmp_CPPFLAGS="$CPPFLAGS"
1760 tmp_CFLAGS="$CFLAGS"
1761 CPPFLAGS="$CPPFLAGS -x objective-c"
1762 CFLAGS="$CFLAGS -x objective-c"
1765 if test "${with_ns}" != no; then
1766 if test "${opsys}" = darwin; then
1768 ns_appdir=`pwd`/nextstep/Emacs.app
1769 ns_appbindir=${ns_appdir}/Contents/MacOS
1770 ns_appresdir=${ns_appdir}/Contents/Resources
1771 ns_appsrc=Cocoa/Emacs.base
1772 ns_fontfile=macfont.o
1773 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1775 NS_GNUSTEP_CONFIG=yes
1776 GNU_OBJC_CFLAGS=$flags
1777 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1778 elif test -f $GNUSTEP_CONFIG_FILE; then
1780 dnl FIXME sourcing this several times in subshells seems inefficient.
1781 GNUSTEP_SYSTEM_HEADERS=$(
1782 . $GNUSTEP_CONFIG_FILE
1783 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1785 GNUSTEP_SYSTEM_LIBRARIES=$(
1786 . $GNUSTEP_CONFIG_FILE
1787 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1789 dnl I seemed to need these as well with GNUstep-startup 0.25.
1790 GNUSTEP_LOCAL_HEADERS=$(
1791 . $GNUSTEP_CONFIG_FILE
1792 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1794 GNUSTEP_LOCAL_LIBRARIES=$(
1795 . $GNUSTEP_CONFIG_FILE
1796 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1798 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1799 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1800 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1801 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1802 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1803 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1804 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1805 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1806 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1807 dnl If they had chosen to either define it or not, we could have
1808 dnl just used AC_CHECK_DECL here.
1809 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1810 emacs_cv_objc_exceptions,
1811 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1812 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1816 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1817 if test $emacs_cv_objc_exceptions = yes; then
1818 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1819 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1820 [Define if GNUstep uses ObjC exceptions.])
1821 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1824 if test $NS_IMPL_GNUSTEP = yes; then
1825 ns_appdir=`pwd`/nextstep/Emacs.app
1826 ns_appbindir=${ns_appdir}
1827 ns_appresdir=${ns_appdir}/Resources
1828 ns_appsrc=GNUstep/Emacs.base
1829 ns_fontfile=nsfont.o
1832 dnl This is only used while we test the NS headers, it gets reset below.
1833 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1834 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1836 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1837 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1838 are required for a Nextstep build are missing or cannot be compiled.
1839 Either fix this, or re-configure with the option '--without-ns'.])])
1842 if test "${NS_IMPL_COCOA}" = "yes"; then
1843 AC_MSG_CHECKING([for OSX 10.6 or newer])
1844 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1846 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1847 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1850 error "OSX 10.6 or newer required";
1854 ns_osx_have_106=yes,
1856 AC_MSG_RESULT([$ns_osx_have_106])
1858 if test $ns_osx_have_106 = no; then
1859 AC_MSG_ERROR([OSX 10.6 or newer is required]);
1864 AC_SUBST(LIBS_GNUSTEP)
1866 INSTALL_ARCH_INDEP_EXTRA=install-etc
1867 ns_self_contained=no
1870 if test "${HAVE_NS}" = yes; then
1871 if test "$with_toolkit_scroll_bars" = "no"; then
1872 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1875 window_system=nextstep
1876 # set up packaging dirs
1877 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1878 ns_self_contained=yes
1879 prefix=${ns_appresdir}
1880 exec_prefix=${ns_appbindir}
1881 dnl This one isn't really used, only archlibdir is.
1882 libexecdir="\${ns_appbindir}/libexec"
1883 archlibdir="\${ns_appbindir}/libexec"
1884 etcdocdir="\${ns_appresdir}/etc"
1885 etcdir="\${ns_appresdir}/etc"
1886 dnl FIXME maybe set datarootdir instead.
1887 dnl That would also get applications, icons, man.
1888 infodir="\${ns_appresdir}/info"
1889 mandir="\${ns_appresdir}/man"
1890 lispdir="\${ns_appresdir}/lisp"
1891 test "$locallisppathset" = no && locallisppath=""
1892 INSTALL_ARCH_INDEP_EXTRA=
1895 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1897 CFLAGS="$tmp_CFLAGS"
1898 CPPFLAGS="$tmp_CPPFLAGS"
1899 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1900 AC_SUBST(ns_self_contained)
1902 AC_SUBST(NS_OBJC_OBJ)
1913 if test "${with_w32}" != no; then
1916 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1917 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1918 cannot be found.])])
1921 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1924 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1929 if test "${opsys}" = "mingw32"; then
1930 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1931 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1932 #include <windows.h>
1933 #include <usp10.h>]],
1934 [[PIMAGE_NT_HEADERS pHeader;
1935 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1936 [emacs_cv_w32api=yes
1939 AC_MSG_RESULT($emacs_cv_w32api)
1940 if test "${emacs_cv_w32api}" = "no"; then
1941 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1952 if test "${HAVE_W32}" = "yes"; then
1953 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1954 if test "$with_toolkit_scroll_bars" = "no"; then
1955 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
1957 AC_CHECK_TOOL(WINDRES, [windres],
1958 [AC_MSG_ERROR([No resource compiler found.])])
1959 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1960 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1961 EMACSRES="emacs.res"
1962 case "$canonical" in
1963 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1964 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1966 dnl Construct something of the form "24,4,0,0" with 4 components.
1967 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
1969 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
1970 AC_SUBST(comma_version)
1971 AC_SUBST(comma_space_version)
1972 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
1973 if test "${opsys}" = "cygwin"; then
1974 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1975 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1976 # Tell the linker that emacs.res is an object (which we compile from
1977 # the rc file), not a linker script.
1978 W32_RES_LINK="-Wl,emacs.res"
1980 UPDATE_MANIFEST=update-game-score.exe.manifest
1981 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1982 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1983 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1984 W32_RES_LINK="\$(EMACSRES)"
1985 CLIENTRES="emacsclient.res"
1986 CLIENTW="emacsclientw\$(EXEEXT)"
1987 FIRSTFILE_OBJ=firstfile.o
1990 LIBS_ECLIENT="-lcomctl32"
1991 LIB_WSOCK32="-lwsock32"
1992 NTLIB="ntlib.$ac_objext"
1993 XARGS_LIMIT="-s 10000"
1999 AC_SUBST(EMACS_MANIFEST)
2000 AC_SUBST(UPDATE_MANIFEST)
2003 AC_SUBST(W32_RES_LINK)
2004 AC_SUBST(FIRSTFILE_OBJ)
2007 AC_SUBST(LIBS_ECLIENT)
2008 AC_SUBST(LIB_WSOCK32)
2010 AC_SUBST(XARGS_LIMIT)
2012 if test "${HAVE_W32}" = "yes"; then
2017 ## $window_system is now set to the window system we will
2020 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
2021 # Too many warnings for now.
2023 nw="$nw -Wsuggest-attribute=noreturn"
2024 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
2026 gl_WARN_ADD([-Wno-unused-variable])
2027 gl_WARN_ADD([-Wno-unused-but-set-variable])
2028 gl_WARN_ADD([-Wno-unused-but-set-parameter])
2036 case "${window_system}" in
2041 case "${with_x_toolkit}" in
2042 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2043 motif ) USE_X_TOOLKIT=MOTIF ;;
2045 term_header=gtkutil.h
2046 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2047 dnl USE_X_TOOLKIT is set.
2048 USE_X_TOOLKIT=none ;;
2049 gtk2 ) with_gtk2=yes
2050 term_header=gtkutil.h
2051 USE_X_TOOLKIT=none ;;
2052 gtk3 ) with_gtk3=yes
2053 term_header=gtkutil.h
2054 USE_X_TOOLKIT=none ;;
2055 no ) USE_X_TOOLKIT=none ;;
2056 dnl If user did not say whether to use a toolkit, make this decision later:
2057 dnl use the toolkit if we have gtk, or X11R5 or newer.
2058 * ) USE_X_TOOLKIT=maybe ;;
2062 term_header=nsterm.h
2065 term_header=w32term.h
2069 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2070 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2071 if test "$HAVE_XSERVER" = true ||
2072 test -n "$DISPLAY" ||
2074 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2075 test "$emacs_libX11" != '/usr/lib/libX11.*'
2078 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2079 were found. You should install the relevant development files for X
2080 and for the toolkit you want, such as Gtk+ or Motif. Also make
2081 sure you have development files for image handling, i.e.
2082 tiff, gif, jpeg, png and xpm.
2083 If you are sure you want Emacs compiled without X window support, pass
2089 # Does the opsystem file prohibit the use of the GNU malloc?
2090 # Assume not, until told otherwise.
2094 [whether malloc is Doug Lea style],
2095 [emacs_cv_var_doug_lea_malloc],
2096 [emacs_cv_var_doug_lea_malloc=no
2097 dnl Hooks do not work with address sanitization.
2098 if test "$emacs_cv_sanitize_address" != yes; then
2101 [[#include <malloc.h>
2102 static void hook (void) {}]],
2103 [[malloc_set_state (malloc_get_state ());
2104 __after_morecore_hook = hook;
2105 __malloc_initialize_hook = hook;]])],
2106 [emacs_cv_var_doug_lea_malloc=yes])])
2108 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2110 system_malloc=$emacs_cv_sanitize_address
2115 ## darwin ld insists on the use of malloc routines in the System framework.
2116 darwin | mingw32 | nacl | sol2-10) system_malloc=yes ;;
2117 cygwin) hybrid_malloc=yes;;
2121 if test "${system_malloc}" = "yes"; then
2122 AC_DEFINE([SYSTEM_MALLOC], 1,
2123 [Define to 1 to use the system memory allocator, even if it is not
2127 (The GNU allocators don't work with this system configuration.)"
2129 elif test "$hybrid_malloc" = yes; then
2130 AC_DEFINE(HYBRID_MALLOC, 1,
2131 [Define to use gmalloc before dumping and the system malloc after.])
2133 GNU_MALLOC_reason="only before dumping"
2134 GMALLOC_OBJ=gmalloc.o
2137 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2138 VMLIMIT_OBJ=vm-limit.o
2140 AC_CHECK_HEADERS([sys/vlimit.h])
2141 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2144 [[extern char data_start[]; char ch;]],
2145 [[return data_start < &ch;]])],
2146 [emacs_cv_data_start=yes],
2147 [emacs_cv_data_start=no])])
2148 if test $emacs_cv_data_start = yes; then
2149 AC_DEFINE([HAVE_DATA_START], 1,
2150 [Define to 1 if data_start is the address of the start
2151 of the main data segment.])
2154 AC_SUBST(GMALLOC_OBJ)
2155 AC_SUBST(VMLIMIT_OBJ)
2157 if test "$doug_lea_malloc" = "yes" ; then
2158 if test "$GNU_MALLOC" = yes ; then
2160 (Using Doug Lea's new malloc from the GNU C Library.)"
2162 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2163 [Define to 1 if the system memory allocator is Doug Lea style,
2164 with malloc hooks and malloc_set_state.])
2166 ## Use mmap directly for allocating larger buffers.
2167 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2168 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2169 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2171 mingw32|gnu*) REL_ALLOC=no ;;
2175 if test x"${REL_ALLOC}" = x; then
2176 REL_ALLOC=${GNU_MALLOC}
2179 use_mmap_for_buffers=no
2181 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2185 if test $use_mmap_for_buffers = yes; then
2186 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2190 LIBS="$LIBS_SYSTEM $LIBS"
2192 dnl FIXME replace main with a function we actually want from this library.
2193 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2195 dnl Check for C11 threads.
2196 AC_CHECK_HEADERS_ONCE(threads.h)
2198 dnl Check for the POSIX thread library.
2200 AC_CHECK_HEADERS_ONCE(pthread.h)
2201 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2202 AC_CACHE_CHECK([for pthread library],
2203 [emacs_cv_pthread_lib],
2204 [emacs_cv_pthread_lib=no
2205 OLD_CPPFLAGS=$CPPFLAGS
2207 for emacs_pthread_lib in 'none needed' -lpthread; do
2208 case $emacs_pthread_lib in
2209 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2213 [[#include <pthread.h>
2215 sigset_t old_mask, new_mask;
2216 void noop (void) {}]],
2217 [[pthread_t th = pthread_self ();
2219 status += pthread_create (&th, 0, 0, 0);
2220 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2221 status += pthread_kill (th, 0);
2222 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2223 || defined DOUG_LEA_MALLOC)
2224 /* Test for pthread_atfork only if gmalloc uses it,
2225 as older-style hosts like MirBSD 10 lack it. */
2226 status += pthread_atfork (noop, noop, noop);
2229 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2231 if test "$emacs_cv_pthread_lib" != no; then
2235 CPPFLAGS=$OLD_CPPFLAGS])
2236 if test "$emacs_cv_pthread_lib" != no; then
2237 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2238 case $emacs_cv_pthread_lib in
2239 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2241 ac_cv_func_pthread_sigmask=yes
2242 # Some systems optimize for single-threaded programs by default, and
2243 # need special flags to disable these optimizations. For example, the
2244 # definition of 'errno' in <errno.h>.
2247 AC_DEFINE([_REENTRANT], 1,
2248 [Define to 1 if your system requires this in multithreaded code.]);;
2250 AC_DEFINE([_THREAD_SAFE], 1,
2251 [Define to 1 if your system requires this in multithreaded code.]);;
2255 AC_SUBST([LIB_PTHREAD])
2257 dnl Check for need for bigtoc support on IBM AIX
2261 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2263 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2264 *) gdb_cv_bigtoc=-bbigtoc ;;
2267 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2268 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2273 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2274 # is for the tests that follow. We set them back later on.
2276 REAL_CFLAGS="$CFLAGS"
2277 REAL_CPPFLAGS="$CPPFLAGS"
2280 if test "${HAVE_X11}" = "yes"; then
2281 DEFS="$C_SWITCH_X_SITE $DEFS"
2282 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2284 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2285 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2287 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2288 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2289 # but it's more convenient here to set LD_RUN_PATH since this
2290 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2291 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2292 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2296 if test "${opsys}" = "gnu-linux"; then
2297 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2298 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2299 [[XOpenDisplay ("foo");]])],
2300 [xgnu_linux_first_failure=no],
2301 [xgnu_linux_first_failure=yes])
2302 if test "${xgnu_linux_first_failure}" = "yes"; then
2303 OLD_CPPFLAGS="$CPPFLAGS"
2305 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2306 LIBS="$LIBS -b i486-linuxaout"
2307 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2308 [[XOpenDisplay ("foo");]])],
2309 [xgnu_linux_second_failure=no],
2310 [xgnu_linux_second_failure=yes])
2311 if test "${xgnu_linux_second_failure}" = "yes"; then
2312 # If we get the same failure with -b, there is no use adding -b.
2313 # So leave it out. This plays safe.
2316 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2317 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2320 CPPFLAGS=$OLD_CPPFLAGS
2327 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2328 # header files included from there.
2329 AC_MSG_CHECKING(for Xkb)
2330 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2331 #include <X11/XKBlib.h>]],
2332 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2333 emacs_xkb=yes, emacs_xkb=no)
2334 AC_MSG_RESULT($emacs_xkb)
2335 if test $emacs_xkb = yes; then
2336 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2339 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2340 XScreenNumberOfScreen)
2343 if test "${window_system}" = "x11"; then
2344 AC_MSG_CHECKING(X11 version 6)
2345 AC_CACHE_VAL(emacs_cv_x11_version_6,
2346 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2347 [[#if XlibSpecificationRelease < 6
2350 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2351 if test $emacs_cv_x11_version_6 = yes; then
2352 AC_MSG_RESULT(6 or newer)
2353 AC_DEFINE(HAVE_X11R6, 1,
2354 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2355 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2356 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2360 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2361 [Define if you have usable X11R6-style XIM support.])
2365 AC_MSG_RESULT(before 6)
2370 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2372 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2373 if test "${with_rsvg}" != "no"; then
2374 RSVG_REQUIRED=2.11.0
2375 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2377 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2378 AC_SUBST(RSVG_CFLAGS)
2381 if test $HAVE_RSVG = yes; then
2382 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2383 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2384 # Windows loads librsvg dynamically
2385 if test "${opsys}" = "mingw32"; then
2393 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2394 if test "${with_imagemagick}" != "no"; then
2395 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2396 ## 6.8.2 makes Emacs crash; see Bug#13867.
2397 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2398 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2399 AC_SUBST(IMAGEMAGICK_CFLAGS)
2400 AC_SUBST(IMAGEMAGICK_LIBS)
2402 if test $HAVE_IMAGEMAGICK = yes; then
2403 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2406 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2407 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2408 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2418 gtk_term_header=$term_header
2421 if test "${opsys}" != "mingw32"; then
2422 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2425 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2427 dnl Checks for libraries.
2428 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2429 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2430 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2431 AC_MSG_ERROR($GTK_PKG_ERRORS)
2433 if test "$pkg_check_gtk" = "yes"; then
2434 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2435 GTK_OBJ=emacsgtkfixed.o
2436 gtk_term_header=gtkutil.h
2437 USE_GTK_TOOLKIT="GTK3"
2438 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2439 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2440 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2441 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2442 [Define to 1 to disable Glib deprecation warnings.])
2446 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2450 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2453 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2455 dnl Checks for libraries.
2456 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2457 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2458 if test "$pkg_check_gtk" = "no" &&
2459 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2461 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2463 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2470 if test x"$pkg_check_gtk" = xyes; then
2473 CFLAGS="$CFLAGS $GTK_CFLAGS"
2474 LIBS="$GTK_LIBS $LIBS"
2475 dnl Try to compile a simple GTK program.
2476 AC_MSG_CHECKING([whether GTK compiles])
2480 [[/* Check the Gtk and Glib APIs. */
2481 #include <gtk/gtk.h>
2482 #include <glib-object.h>
2484 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2488 GtkSettings *gs = 0;
2489 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2490 strict C prohibits this. Use gtk_main_iteration to test that the
2491 libraries are there. */
2492 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2493 0, 0, 0, G_CALLBACK (callback), 0))
2494 gtk_main_iteration ();
2497 AC_MSG_RESULT([$GTK_COMPILES])
2498 if test "${GTK_COMPILES}" != "yes"; then
2500 if test "$USE_X_TOOLKIT" != "maybe"; then
2501 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2504 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2506 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2507 GTK_OBJ="gtkutil.o $GTK_OBJ"
2508 term_header=$gtk_term_header
2510 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2511 closing open displays. This is no problem if you just use
2512 one display, but if you use more than one and close one of them
2514 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2522 if test "${HAVE_GTK}" = "yes"; then
2524 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2525 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2526 if test "$with_toolkit_scroll_bars" != no; then
2527 with_toolkit_scroll_bars=yes
2530 dnl Check if we have the old file selection dialog declared and
2531 dnl in the link library. In 2.x it may be in the library,
2532 dnl but not declared if deprecated featured has been selected out.
2533 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2534 HAVE_GTK_FILE_SELECTION=no
2535 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2536 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2537 #include <gtk/gtk.h>])
2538 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2539 AC_CHECK_FUNCS(gtk_file_selection_new)
2542 dnl Same as above for gtk_handle_box.
2543 HAVE_GTK_HANDLE_BOX=no
2544 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2545 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2546 #include <gtk/gtk.h>])
2547 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2548 AC_CHECK_FUNCS(gtk_handle_box_new)
2551 dnl Same as above for gtk_tearoff_menu_item.
2552 HAVE_GTK_TEAROFF_MENU_ITEM=no
2553 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2554 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2555 #include <gtk/gtk.h>])
2556 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2557 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2560 dnl Check for functions introduced in 2.14 and later.
2561 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2562 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2563 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2564 gtk_orientable_set_orientation \
2565 gtk_window_set_has_resize_grip)
2567 term_header=gtkutil.h
2573 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2574 dnl other platforms.
2577 if test "${with_dbus}" = "yes"; then
2578 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2579 if test "$HAVE_DBUS" = yes; then
2580 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2581 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2582 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2585 LIBS="$LIBS $DBUS_LIBS"
2586 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2587 dbus_type_is_valid \
2588 dbus_validate_bus_name \
2589 dbus_validate_path \
2590 dbus_validate_interface \
2591 dbus_validate_member)
2596 AC_SUBST(DBUS_CFLAGS)
2600 dnl GSettings has been tested under GNU/Linux only.
2602 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2603 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2604 if test "$HAVE_GSETTINGS" = "yes"; then
2606 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2608 LIBS="$LIBS $GSETTINGS_LIBS"
2609 AC_MSG_CHECKING([whether GSettings is in gio])
2612 [[/* Check that gsettings really is present. */
2613 #include <glib-object.h>
2614 #include <gio/gio.h>
2617 GSettings *settings;
2618 GVariant *val = g_settings_get_value (settings, "");
2620 [], HAVE_GSETTINGS=no)
2621 AC_MSG_RESULT([$HAVE_GSETTINGS])
2623 if test "$HAVE_GSETTINGS" = "yes"; then
2624 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2625 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2626 SETTINGS_LIBS="$GSETTINGS_LIBS"
2633 dnl GConf has been tested under GNU/Linux only.
2634 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2636 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2637 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2638 if test "$HAVE_GCONF" = yes; then
2639 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2640 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2641 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2642 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2646 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2647 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2648 if test "$HAVE_GOBJECT" = "yes"; then
2649 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2650 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2652 SAVE_CFLAGS="$CFLAGS"
2654 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2655 LIBS="$SETTINGS_LIBS $LIBS"
2656 CFLAGS="$SAVE_CFLAGS"
2659 AC_SUBST(SETTINGS_CFLAGS)
2660 AC_SUBST(SETTINGS_LIBS)
2663 dnl SELinux is available for GNU/Linux only.
2666 if test "${with_selinux}" = "yes"; then
2667 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2668 if test "$HAVE_LIBSELINUX" = yes; then
2669 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2670 LIBSELINUX_LIBS=-lselinux
2673 AC_SUBST(LIBSELINUX_LIBS)
2676 if test "${with_gnutls}" = "yes" ; then
2677 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2678 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2679 if test "${HAVE_GNUTLS}" = "yes"; then
2680 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2681 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2682 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2685 # Windows loads GnuTLS dynamically
2686 if test "${opsys}" = "mingw32"; then
2691 AC_SUBST(LIBGNUTLS_LIBS)
2692 AC_SUBST(LIBGNUTLS_CFLAGS)
2697 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2698 dnl a particular library. This doesn't make much sense?
2699 if test "${HAVE_NS}" = yes && test ${with_file_notification} = yes; then
2700 with_file_notification=no
2703 dnl MS Windows native file monitor is available for mingw32 only.
2704 case $with_file_notification,$opsys in
2706 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2707 this is only supported on MS-Windows native and MinGW32 builds.
2708 Consider using gfile instead.])
2710 w32,* | yes,mingw32)
2711 AC_CHECK_HEADER(windows.h)
2712 if test "$ac_cv_header_windows_h" = yes ; then
2713 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2714 NOTIFY_OBJ=w32notify.o
2715 NOTIFY_SUMMARY="yes (w32)"
2719 dnl inotify is available only on GNU/Linux.
2720 case $with_file_notification,$NOTIFY_OBJ in
2722 AC_CHECK_HEADER(sys/inotify.h)
2723 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2724 AC_CHECK_FUNC(inotify_init1)
2725 if test "$ac_cv_func_inotify_init1" = yes; then
2726 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2727 NOTIFY_OBJ=inotify.o
2728 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2733 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2734 dnl has been added in glib 2.24. It has been tested under
2736 case $with_file_notification,$NOTIFY_OBJ in
2738 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2739 if test "$HAVE_GFILENOTIFY" = "yes"; then
2740 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2741 NOTIFY_OBJ=gfilenotify.o
2742 NOTIFY_SUMMARY="yes -lgio (gfile)"
2746 case $with_file_notification,$NOTIFY_OBJ in
2747 yes,* | no,* | *,?*) ;;
2748 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2751 if test -n "$NOTIFY_OBJ"; then
2752 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2754 AC_SUBST(NOTIFY_OBJ)
2755 AC_SUBST(GFILENOTIFY_CFLAGS)
2756 AC_SUBST(GFILENOTIFY_LIBS)
2758 dnl Do not put whitespace before the #include statements below.
2759 dnl Older compilers (eg sunos4 cc) choke on it.
2762 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2763 if test "$with_xaw3d" != no; then
2764 AC_CACHE_VAL(emacs_cv_xaw3d,
2765 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2766 #include <X11/Intrinsic.h>
2767 #include <X11/Xaw3d/Simple.h>]],
2769 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2770 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2771 emacs_cv_xaw3d=no)])
2775 if test $emacs_cv_xaw3d = yes; then
2776 AC_MSG_CHECKING(for xaw3d)
2777 AC_MSG_RESULT([yes; using Lucid toolkit])
2781 AC_DEFINE(HAVE_XAW3D, 1,
2782 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2784 AC_MSG_CHECKING(for xaw3d)
2786 AC_MSG_CHECKING(for libXaw)
2787 AC_CACHE_VAL(emacs_cv_xaw,
2788 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2789 #include <X11/Intrinsic.h>
2790 #include <X11/Xaw/Simple.h>]],
2794 if test $emacs_cv_xaw = yes; then
2795 AC_MSG_RESULT([yes; using Lucid toolkit])
2798 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2799 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2801 AC_MSG_ERROR([No X toolkit could be found.
2802 If you are sure you want Emacs compiled without an X toolkit, pass
2804 to configure. Otherwise, install the development libraries for the toolkit
2805 that you want to use (e.g. Gtk+) and re-run configure.])
2810 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2814 if test "${USE_X_TOOLKIT}" != "none"; then
2815 AC_MSG_CHECKING(X11 toolkit version)
2816 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2817 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2818 [[#if XtSpecificationRelease < 6
2821 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2822 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2823 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2824 AC_MSG_RESULT(6 or newer)
2825 AC_DEFINE(HAVE_X11XTR6, 1,
2826 [Define to 1 if you have the X11R6 or newer version of Xt.])
2827 LIBXTR6="-lSM -lICE"
2829 ## Use libw.a along with X11R6 Xt.
2830 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2833 AC_MSG_RESULT(before 6)
2836 dnl If using toolkit, check whether libXmu.a exists.
2837 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2839 if test x$HAVE_X11XTR6 = xyes; then
2840 OTHERLIBS='-lXt -lSM -lICE'
2844 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2845 if test "X$LIBS" != "X$OLDLIBS"; then
2846 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2849 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2855 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2856 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2857 if test -d /usr/include/openmotif; then
2858 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2859 emacs_cv_openmotif=yes
2860 case "$canonical" in
2861 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2862 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2865 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2868 emacs_cv_openmotif=no
2870 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2871 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2872 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2875 Motif version prior to 2.1.
2877 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2878 if test $emacs_cv_motif_version_2_1 = yes; then
2879 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2880 if test x$emacs_cv_openmotif = xyes; then
2881 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2884 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2885 # We put this in CFLAGS temporarily to precede other -I options
2886 # that might be in CFLAGS temporarily.
2887 # We put this in CPPFLAGS where it precedes the other -I options.
2888 OLD_CPPFLAGS=$CPPFLAGS
2890 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2891 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2892 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2894 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2895 if test $emacs_cv_lesstif = yes; then
2896 # Make sure this -I option remains in CPPFLAGS after it is set
2897 # back to REAL_CPPFLAGS.
2898 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2899 # have those other -I options anyway. Ultimately, having this
2900 # directory ultimately in CPPFLAGS will be enough.
2901 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2902 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2905 CPPFLAGS=$OLD_CPPFLAGS
2908 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2909 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2912 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2913 dnl using Motif or Xaw3d is available, and unless
2914 dnl --with-toolkit-scroll-bars=no was specified.
2916 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2917 [Define to 1 if we should use toolkit scroll bars.])dnl
2918 USE_TOOLKIT_SCROLL_BARS=no
2919 if test "${with_toolkit_scroll_bars}" != "no"; then
2920 if test "${USE_X_TOOLKIT}" != "none"; then
2921 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2922 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2924 USE_TOOLKIT_SCROLL_BARS=yes
2925 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2926 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2927 USE_TOOLKIT_SCROLL_BARS=yes
2929 elif test "${HAVE_GTK}" = "yes"; then
2930 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2931 USE_TOOLKIT_SCROLL_BARS=yes
2932 elif test "${HAVE_NS}" = "yes"; then
2933 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2934 USE_TOOLKIT_SCROLL_BARS=yes
2935 elif test "${HAVE_W32}" = "yes"; then
2936 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2937 USE_TOOLKIT_SCROLL_BARS=yes
2941 dnl See if XIM is available.
2942 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2943 #include <X11/Xlib.h>
2944 #include <X11/Xresource.h>]],
2945 [[XIMProc callback;]])],
2947 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2950 dnl '--with-xim' now controls only the initial value of use_xim at run time.
2952 if test "${with_xim}" != "no"; then
2953 AC_DEFINE(USE_XIM, 1,
2954 [Define to 1 if we should use XIM, if it is available.])
2958 if test "${HAVE_XIM}" != "no"; then
2960 if test "$GCC" = yes; then
2961 CFLAGS="$CFLAGS --pedantic-errors"
2963 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2964 #include <X11/Xlib.h>
2965 #include <X11/Xresource.h>]],
2971 XPointer *client_data;
2973 /* If we're not using GCC, it's probably not XFree86, and this is
2974 probably right, but we can't use something like --pedantic-errors. */
2975 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2976 char*, XIMProc, XPointer*);
2978 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2980 [emacs_cv_arg6_star=yes])
2981 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2982 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2983 either XPointer or XPointer*.])dnl
2984 if test "$emacs_cv_arg6_star" = yes; then
2985 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2987 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2992 ### Start of font-backend (under any platform) section.
2993 # (nothing here yet -- this is a placeholder)
2994 ### End of font-backend (under any platform) section.
2996 ### Start of font-backend (under X11) section.
2997 if test "${HAVE_X11}" = "yes"; then
2998 ## Use -lXft if available, unless '--with-xft=no'.
3000 if test "x${with_x}" = "xno"; then
3004 if test "$with_xft" != no; then
3005 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3006 with_xft=$HAVE_FONTCONFIG
3009 if test "x${with_xft}" != "xno"; then
3011 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3012 ## Because xftfont.c uses XRenderQueryExtension, we also
3013 ## need to link to -lXrender.
3015 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3016 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3017 OLD_CPPFLAGS="$CPPFLAGS"
3018 OLD_CFLAGS="$CFLAGS"
3020 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3021 CFLAGS="$CFLAGS $XFT_CFLAGS"
3022 XFT_LIBS="-lXrender $XFT_LIBS"
3023 LIBS="$XFT_LIBS $LIBS"
3024 AC_CHECK_HEADER(X11/Xft/Xft.h,
3025 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3026 [[#include <X11/X.h>]])
3028 if test "${HAVE_XFT}" = "yes"; then
3029 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3031 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3032 fi # "${HAVE_XFT}" = "yes"
3033 CPPFLAGS=$OLD_CPPFLAGS
3036 fi # "$HAVE_XFT" != no
3037 fi # "x${with_xft}" != "xno"
3039 ## We used to allow building with FreeType and without Xft.
3040 ## However, the ftx font backend driver is not in good shape.
3041 if test "$HAVE_XFT" != "yes"; then
3042 dnl For the "Does Emacs use" message at the end.
3046 dnl Strict linkers fail with
3047 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3048 dnl if -lfreetype is not specified.
3049 dnl The following is needed to set FREETYPE_LIBS.
3050 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3052 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3056 if test "${HAVE_FREETYPE}" = "yes"; then
3057 AC_DEFINE(HAVE_FREETYPE, 1,
3058 [Define to 1 if using the freetype and fontconfig libraries.])
3059 if test "${with_libotf}" != "no"; then
3060 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3061 if test "$HAVE_LIBOTF" = "yes"; then
3062 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3063 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3064 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3065 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3066 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3067 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3068 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3072 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3073 dnl Does the new font backend require it, or can it work without it?
3077 if test "${HAVE_LIBOTF}" = yes; then
3078 if test "${with_m17n_flt}" != "no"; then
3079 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3080 if test "$HAVE_M17N_FLT" = "yes"; then
3081 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3092 ### End of font-backend (under X11) section.
3094 AC_SUBST(FREETYPE_CFLAGS)
3095 AC_SUBST(FREETYPE_LIBS)
3096 AC_SUBST(FONTCONFIG_CFLAGS)
3097 AC_SUBST(FONTCONFIG_LIBS)
3098 AC_SUBST(LIBOTF_CFLAGS)
3099 AC_SUBST(LIBOTF_LIBS)
3100 AC_SUBST(M17N_FLT_CFLAGS)
3101 AC_SUBST(M17N_FLT_LIBS)
3104 if test "${HAVE_X11}" = "yes"; then
3105 if test "${with_cairo}" != "no"; then
3106 CAIRO_REQUIRED=1.12.0
3107 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3108 PKG_CHECK_MODULES(CAIRO, $CAIRO_MODULE, USE_CAIRO=yes, :)
3109 if test $USE_CAIRO = yes; then
3110 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3112 AC_MSG_ERROR([cairo requested but not found.])
3115 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3116 LIBS="$LIBS $CAIRO_LIBS"
3117 AC_SUBST(CAIRO_CFLAGS)
3118 AC_SUBST(CAIRO_LIBS)
3122 if test "${HAVE_X11}" = "yes"; then
3123 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3124 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3125 if test "${HAVE_XCB}" = "yes"; then
3126 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3127 if test "${HAVE_X11_XCB}" = "yes"; then
3128 AC_DEFINE(USE_XCB, 1,
3129 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3130 X11/XCB programming.])
3131 XCB_LIBS="-lX11-xcb -lxcb"
3137 ### Use -lXpm if available, unless '--with-xpm=no'.
3138 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3139 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3140 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3141 ### LDFLAGS) accordingly.
3144 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3145 if test "${with_xpm}" != "no"; then
3146 SAVE_CPPFLAGS="$CPPFLAGS"
3147 SAVE_LDFLAGS="$LDFLAGS"
3148 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3149 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3150 AC_CHECK_HEADER(X11/xpm.h,
3151 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3152 if test "${HAVE_XPM}" = "yes"; then
3153 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3154 AC_EGREP_CPP(no_return_alloc_pixels,
3155 [#include "X11/xpm.h"
3156 #ifndef XpmReturnAllocPixels
3157 no_return_alloc_pixels
3159 ], HAVE_XPM=no, HAVE_XPM=yes)
3161 if test "${HAVE_XPM}" = "yes"; then
3162 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3166 CPPFLAGS="$SAVE_CPPFLAGS"
3167 LDFLAGS="$SAVE_LDFLAGS"
3172 if test "${HAVE_XPM}" = "yes"; then
3173 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3178 if test "${HAVE_X11}" = "yes"; then
3179 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3180 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3182 if test "${with_xpm}" != "no"; then
3183 AC_CHECK_HEADER(X11/xpm.h,
3184 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3185 if test "${HAVE_XPM}" = "yes"; then
3186 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3187 AC_EGREP_CPP(no_return_alloc_pixels,
3188 [#include "X11/xpm.h"
3189 #ifndef XpmReturnAllocPixels
3190 no_return_alloc_pixels
3192 ], HAVE_XPM=no, HAVE_XPM=yes)
3194 if test "${HAVE_XPM}" = "yes"; then
3202 if test "${HAVE_XPM}" = "yes"; then
3203 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3205 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3206 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3211 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3212 ### slightly different requirements wrt image libraries (it doesn't
3213 ### use -lXpm because it loads the xpm shared library dynamically at
3215 if test "${opsys}" = "mingw32"; then
3216 if test "${with_xpm}" != "no"; then
3217 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3221 if test "${HAVE_XPM}" = "yes"; then
3222 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3228 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3231 if test "${with_jpeg}" != "no"; then
3232 AC_CACHE_CHECK([for jpeglib 6b or later],
3235 for emacs_cv_jpeglib in yes -ljpeg no; do
3236 case $emacs_cv_jpeglib in
3239 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3243 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3244 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3245 #include <jpeglib.h>
3247 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3248 struct jpeg_decompress_struct cinfo;
3251 jpeg_create_decompress (&cinfo);
3252 WARNMS (&cinfo, JWRN_JPEG_EOF);
3253 jpeg_destroy_decompress (&cinfo);
3255 [emacs_link_ok=yes],
3258 test $emacs_link_ok = yes && break
3260 if test "$emacs_cv_jpeglib" != no; then
3262 AC_DEFINE([HAVE_JPEG], 1,
3263 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3264 ### mingw32 doesn't use -ljpeg, since it loads the library
3265 ### dynamically when needed, and doesn't want a run-time
3266 ### dependency on the jpeglib DLL.
3267 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3268 && LIBJPEG=$emacs_cv_jpeglib
3275 if test "${with_zlib}" != "no"; then
3277 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3279 case $ac_cv_search_inflateEnd in
3280 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3283 if test "${HAVE_ZLIB}" = "yes"; then
3284 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3285 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3286 if test "${opsys}" = "mingw32"; then
3292 ### Dynamic modules support
3297 if test "${with_modules}" != "no"; then
3298 if test "$opsys" = "gnu-linux"; then
3300 MODULES_SUFFIX=".so"
3302 elif test "$opsys" = "cygwin"; then
3303 MODULES_SUFFIX=".dll"
3305 elif test "$opsys" = "darwin"; then
3306 MODULES_SUFFIX=".so"
3308 elif test "$opsys" = "mingw32"; then
3309 MODULES_SUFFIX=".dll"
3312 # BSD system have dlopen in the libc
3313 AC_CHECK_FUNC(dlopen, [MODULES_SUFFIX=".so"]
3314 [HAVE_MODULES=yes], [])
3317 if test "${HAVE_MODULES}" = no; then
3318 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3322 if test "${HAVE_MODULES}" = yes; then
3323 MODULES_OBJ="dynlib.o emacs-module.o"
3324 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3325 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3326 [System extension for dynamic libraries])
3328 AC_SUBST(MODULES_OBJ)
3329 AC_SUBST(LIBMODULES)
3330 AX_GCC_VAR_ATTRIBUTE(cleanup)
3331 AC_CHECK_FUNCS(dladdr)
3333 ### Use -lpng if available, unless '--with-png=no'.
3337 if test "${NS_IMPL_COCOA}" = yes; then
3339 elif test "${with_png}" != no; then
3340 # mingw32 loads the library dynamically.
3341 if test "$opsys" = mingw32; then
3342 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3343 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3344 AC_MSG_CHECKING([for png])
3345 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3346 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3347 # libpng-config does not work; configure by hand.
3348 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3349 # in /usr/include/libpng.
3350 if test -r /usr/include/libpng/png.h &&
3351 test ! -r /usr/include/png.h; then
3352 png_cflags=-I/usr/include/libpng
3360 CFLAGS="$CFLAGS $png_cflags"
3361 LIBS="$png_libs -lz -lm $LIBS"
3363 [AC_LANG_PROGRAM([[#include <png.h>]],
3364 [[return !png_get_channels (0, 0);]])],
3366 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3368 # $LIBPNG requires explicit -lz in some cases.
3369 # We don't know what those cases are, exactly, so play it safe and
3370 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3371 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3372 LIBPNG="$LIBPNG -lz"
3376 AC_MSG_RESULT([$HAVE_PNG])
3379 if test $HAVE_PNG = yes; then
3380 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3383 CFLAGS="$CFLAGS $PNG_CFLAGS"
3384 AC_CHECK_DECL([png_longjmp],
3386 [AC_DEFINE([PNG_DEPSTRUCT], [],
3387 [Define to empty to suppress deprecation warnings when building
3388 with --enable-gcc-warnings and with libpng versions before 1.5,
3389 which lack png_longjmp.])],
3395 AC_SUBST(PNG_CFLAGS)
3397 ### Use -ltiff if available, unless '--with-tiff=no'.
3398 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3401 if test "${opsys}" = "mingw32"; then
3402 if test "${with_tiff}" != "no"; then
3403 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3405 if test "${HAVE_TIFF}" = "yes"; then
3406 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3408 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3409 if test "${with_tiff}" != "no"; then
3410 AC_CHECK_HEADER(tiffio.h,
3412 # At least one tiff package requires the jpeg library.
3413 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3414 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3417 if test "${HAVE_TIFF}" = "yes"; then
3418 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3419 dnl FIXME -lz -lm, as per libpng?
3425 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3426 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3429 if test "${opsys}" = "mingw32"; then
3430 if test "${with_gif}" != "no"; then
3431 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3433 if test "${HAVE_GIF}" = "yes"; then
3434 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3436 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3437 || test "${HAVE_W32}" = "yes"; then
3438 AC_CHECK_HEADER(gif_lib.h,
3439 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3440 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3441 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3442 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3444 if test "$HAVE_GIF" = yes; then
3446 elif test "$HAVE_GIF" = maybe; then
3447 # If gif_lib.h but no libgif, try libungif.
3448 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3449 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3452 if test "${HAVE_GIF}" = "yes"; then
3453 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3458 dnl Check for required libraries.
3459 if test "${HAVE_X11}" = "yes"; then
3462 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3463 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3464 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3465 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3466 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3467 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3468 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3469 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3470 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3471 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3473 if test "X${MISSING}" != X; then
3474 AC_MSG_ERROR([The following required libraries were not found:
3476 Maybe some development libraries/packages are missing?
3477 If you don't want to link with them give
3479 as options to configure])
3483 ### Use -lgpm if available, unless '--with-gpm=no'.
3486 if test "${with_gpm}" != "no"; then
3487 AC_CHECK_HEADER(gpm.h,
3488 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3490 if test "${HAVE_GPM}" = "yes"; then
3491 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3497 dnl Check for malloc/malloc.h on darwin
3498 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3501 ### Use NeXTstep API to implement GUI.
3502 if test "${HAVE_NS}" = "yes"; then
3503 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3504 if test "${NS_IMPL_COCOA}" = "yes"; then
3505 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3507 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3508 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3509 if test $NS_GNUSTEP_CONFIG != yes; then
3510 # See also .m.o rule in src/Makefile.in. */
3511 # FIXME: are all these flags really needed? Document here why. */
3512 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3513 ## Extra CFLAGS applied to src/*.m files.
3514 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3520 ### Use session management (-lSM -lICE) if available
3523 if test "${HAVE_X11}" = "yes"; then
3524 AC_CHECK_HEADER(X11/SM/SMlib.h,
3525 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3527 if test "${HAVE_X_SM}" = "yes"; then
3528 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3534 ### Use XRandr (-lXrandr) if available
3536 if test "${HAVE_X11}" = "yes"; then
3537 XRANDR_REQUIRED=1.2.2
3538 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3539 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3540 if test $HAVE_XRANDR = no; then
3541 # Test old way in case pkg-config doesn't have it (older machines).
3542 # Include Xrender.h by hand to work around bug in older Xrandr.h
3543 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3544 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3545 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3546 [], [AC_INCLUDES_DEFAULT
3547 #include <X11/extensions/Xrender.h>])
3548 if test $HAVE_XRANDR = yes; then
3549 XRANDR_LIBS=-lXrandr
3552 if test $HAVE_XRANDR = yes; then
3553 SAVE_CFLAGS="$CFLAGS"
3555 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3556 LIBS="$XRANDR_LIBS $LIBS"
3557 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3558 CFLAGS="$SAVE_CFLAGS"
3561 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3564 AC_SUBST(XRANDR_CFLAGS)
3565 AC_SUBST(XRANDR_LIBS)
3567 ### Use Xinerama (-lXinerama) if available
3569 if test "${HAVE_X11}" = "yes"; then
3570 XINERAMA_REQUIRED=1.0.2
3571 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3572 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3573 if test $HAVE_XINERAMA = no; then
3574 # Test old way in case pkg-config doesn't have it (older machines).
3575 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3576 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3577 if test $HAVE_XINERAMA = yes; then
3578 XINERAMA_LIBS=-lXinerama
3581 if test $HAVE_XINERAMA = yes; then
3582 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3585 AC_SUBST(XINERAMA_CFLAGS)
3586 AC_SUBST(XINERAMA_LIBS)
3588 ### Use Xfixes (-lXfixes) if available
3590 if test "${HAVE_X11}" = "yes"; then
3591 XFIXES_REQUIRED=4.0.0
3592 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3593 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3594 if test $HAVE_XFIXES = no; then
3595 # Test old way in case pkg-config doesn't have it (older machines).
3596 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3597 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3598 if test $HAVE_XFIXES = yes; then
3599 XFIXES_LIBS=-lXfixes
3602 if test $HAVE_XFIXES = yes; then
3603 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3606 AC_SUBST(XFIXES_CFLAGS)
3607 AC_SUBST(XFIXES_LIBS)
3609 ### Use libxml (-lxml2) if available
3610 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3612 if test "${with_xml2}" != "no"; then
3613 ### I'm not sure what the version number should be, so I just guessed.
3614 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3615 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3616 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3617 SAVE_CPPFLAGS="$CPPFLAGS"
3618 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3619 AC_CHECK_HEADER(libxml/HTMLparser.h,
3620 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3621 [#include <libxml/HTMLparser.h>])])
3622 CPPFLAGS="$SAVE_CPPFLAGS"
3623 if test "${HAVE_LIBXML2}" = "yes"; then
3624 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3625 LIBXML2_LIBS="-lxml2"
3628 if test "${HAVE_LIBXML2}" = "yes"; then
3629 if test "${opsys}" != "mingw32"; then
3630 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3635 if test "${HAVE_LIBXML2}" = "yes"; then
3636 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3643 AC_SUBST(LIBXML2_LIBS)
3644 AC_SUBST(LIBXML2_CFLAGS)
3646 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3647 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3648 if test "${opsys}" = "mingw32"; then
3649 emacs_cv_netdb_declares_h_errno=yes
3651 AC_CACHE_CHECK(whether netdb declares h_errno,
3652 emacs_cv_netdb_declares_h_errno,
3653 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3654 [[return h_errno;]])],
3655 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3656 if test $emacs_cv_netdb_declares_h_errno = yes; then
3657 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3660 # Check for mail-locking functions in a "mail" library. Probably this should
3661 # have the same check as for liblockfile below.
3662 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3663 if test $have_mail = yes; then
3665 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3668 LIBS="$LIBS_MAIL $LIBS"
3669 AC_CHECK_FUNCS(touchlock)
3674 dnl Debian, at least:
3675 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3676 if test $have_lockfile = yes; then
3677 LIBS_MAIL=-llockfile
3678 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3680 # If we have the shared liblockfile, assume we must use it for mail
3681 # locking (e.g. Debian). If we couldn't link against liblockfile
3682 # (no liblockfile.a installed), ensure that we don't need to.
3683 dnl This works for files generally, not just executables.
3684 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3685 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3686 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3687 if test $ac_cv_prog_liblockfile = yes; then
3688 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3689 This probably means that movemail could lose mail.
3690 There may be a 'development' package to install containing liblockfile.])
3693 AC_CHECK_HEADERS_ONCE(maillock.h)
3696 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3697 ## interlock access to the mail spool. The alternative is a lock file named
3698 ## /usr/spool/mail/$USER.lock.
3701 aix4-2) mail_lock="lockf" ;;
3703 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3705 ## On GNU/Linux systems, both methods are used by various mail programs.
3706 ## I assume most people are using newer mailers that have heard of flock.
3707 ## Change this if you need to.
3708 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3709 ## configure gets the right answers, and that means *NOT* using flock.
3710 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3711 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3712 ## Debian maintainer hasn't provided a clean fix for Emacs.
3713 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3714 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3715 ## correct logic. -- fx
3716 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3717 ## liblockfile is a Free Software replacement for libmail, used on
3718 ## Debian systems and elsewhere. -rfr.
3721 if test $have_mail = yes || test $have_lockfile = yes; then
3722 test $ac_cv_header_maillock_h = yes && mail_lock=no
3727 mail_lock="none-needed" ;;
3731 case "$mail_lock" in
3732 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3734 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3738 *) BLESSMAIL_TARGET="need-blessmail" ;;
3740 AC_SUBST(BLESSMAIL_TARGET)
3743 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3744 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3745 getrusage get_current_dir_name \
3746 lrand48 random rint \
3747 select getpagesize setlocale newlocale \
3748 getrlimit setrlimit shutdown getaddrinfo \
3749 pthread_sigmask strsignal setitimer \
3750 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3752 getpwent endpwent getgrent endgrent \
3753 cfmakeraw cfsetspeed copysign __executable_start log2)
3756 dnl No need to check for aligned_alloc and posix_memalign if using
3757 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3758 dnl Don't use these functions on Darwin as they are incompatible with
3760 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3761 && test "$opsys" != darwin; then
3762 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3765 dnl Cannot use AC_CHECK_FUNCS
3766 AC_CACHE_CHECK([for __builtin_unwind_init],
3767 emacs_cv_func___builtin_unwind_init,
3768 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3769 emacs_cv_func___builtin_unwind_init=yes,
3770 emacs_cv_func___builtin_unwind_init=no)])
3771 if test $emacs_cv_func___builtin_unwind_init = yes; then
3772 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3773 [Define to 1 if you have the '__builtin_unwind_init' function.])
3776 AC_CHECK_HEADERS_ONCE(sys/un.h)
3781 AC_CHECK_FUNCS(grantpt)
3783 # PTY-related GNU extensions.
3784 AC_CHECK_FUNCS(getpt posix_openpt)
3786 # Check this now, so that we will NOT find the above functions in ncurses.
3787 # That is because we have not set up to link ncurses in lib-src.
3788 # It's better to believe a function is not available
3789 # than to expect to find it in ncurses.
3790 # Also we need tputs and friends to be able to build at all.
3791 AC_MSG_CHECKING([for library containing tputs])
3792 # Run a test program that contains a call to tputs, a call that is
3793 # never executed. This tests whether a pre-'main' dynamic linker
3794 # works with the library. It's too much trouble to actually call
3795 # tputs in the test program, due to portability hassles. When
3796 # cross-compiling, assume the test program will run if it links.
3797 AC_DEFUN([tputs_link_source], [
3799 [[extern void tputs (const char *, int, int (*)(int));
3800 int main (int argc, char **argv)
3803 tputs (argv[0], 0, 0);
3807 if test "${opsys}" = "mingw32"; then
3810 # Maybe curses should be tried earlier?
3811 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3812 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3814 if test -z "$tputs_library"; then
3818 LIBS_TERMCAP=-l$tputs_library
3820 LIBS="$LIBS_TERMCAP $LIBS"
3822 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3823 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3825 if test "X$msg" != Xno; then
3830 AC_MSG_RESULT([$msg])
3831 if test "X$msg" = Xno; then
3832 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3833 The following libraries were tried (in order):
3834 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3835 Please try installing whichever of these libraries is most appropriate
3836 for your system, together with its header files.
3837 For example, a libncurses-dev(el) or similar package.])
3840 ## Use termcap instead of terminfo?
3841 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3843 ## FIXME? In the cases below where we unconditionally set
3844 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3845 ## if that was found above to have tputs.
3846 ## Should we use the gnu* logic everywhere?
3848 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3849 ## The ncurses library has been moved out of the System framework in
3850 ## Mac OS X 10.2. So if configure detects it, set the command-line
3851 ## option to use it.
3852 darwin) LIBS_TERMCAP="-lncurses" ;;
3854 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3857 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3858 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3859 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3860 [[#if __FreeBSD_version < 400000
3863 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3865 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3867 if test $emacs_cv_freebsd_terminfo = yes; then
3868 LIBS_TERMCAP="-lncurses"
3871 LIBS_TERMCAP="-ltermcap"
3881 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3883 LIBS_TERMCAP="-ltermcap"
3887 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3889 ## hpux: Make sure we get select from libc rather than from libcurses
3890 ## because libcurses on HPUX 10.10 has a broken version of select.
3891 ## We used to use -lc -lcurses, but this may be cleaner.
3892 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3893 # set that way, now it uses the default). Isn't this a contradiction?
3894 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3898 TERMCAP_OBJ=tparam.o
3899 if test $TERMINFO = yes; then
3900 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3901 TERMCAP_OBJ=terminfo.o
3903 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3904 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3906 AC_SUBST(LIBS_TERMCAP)
3907 AC_SUBST(TERMCAP_OBJ)
3909 # GNU/Linux-specific timer functions.
3910 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3912 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3914 [[timerfd_create (CLOCK_REALTIME,
3915 TFD_CLOEXEC | TFD_NONBLOCK);
3916 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3917 [emacs_cv_have_timerfd=yes],
3918 [emacs_cv_have_timerfd=no])])
3919 if test "$emacs_cv_have_timerfd" = yes; then
3920 AC_DEFINE([HAVE_TIMERFD], 1,
3921 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3924 # Alternate stack for signal handlers.
3925 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3926 [emacs_cv_alternate_stack],
3928 [AC_LANG_PROGRAM([[#include <signal.h>
3931 struct sigaction sa;
3932 ss.ss_sp = malloc (SIGSTKSZ);
3933 ss.ss_size = SIGSTKSZ;
3934 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3935 sigaltstack (&ss, 0);
3936 sigaction (SIGSEGV, &sa, 0);]])],
3937 [emacs_cv_alternate_stack=yes],
3938 [emacs_cv_alternate_stack=no])])
3940 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3941 # On Darwin, res_init appears not to be useful: see bug#562 and
3942 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3945 if test $opsys != darwin; then
3947 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3948 #include <arpa/nameser.h>
3949 #include <resolv.h>]],
3950 [[return res_init();]])],
3951 have_res_init=yes, have_res_init=no)
3952 if test "$have_res_init" = no; then
3954 LIBS="$LIBS -lresolv"
3955 AC_MSG_CHECKING(for res_init with -lresolv)
3956 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3957 #include <arpa/nameser.h>
3958 #include <resolv.h>]],
3959 [[return res_init();]])],
3960 have_res_init=yes, have_res_init=no)
3961 AC_MSG_RESULT($have_res_init)
3962 if test "$have_res_init" = yes ; then
3968 if test "$have_res_init" = yes; then
3969 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3973 # Do we need the Hesiod library to provide the support routines?
3974 dnl FIXME? Should we be skipping this on Darwin too?
3976 if test "$with_hesiod" != no ; then
3977 # Don't set $LIBS here -- see comments above. FIXME which comments?
3978 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3979 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3980 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3981 if test "$resolv" = yes ; then
3986 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3987 hesiod=yes, :, $RESOLVLIB)])
3989 if test x"$hesiod" = xyes; then
3995 # Do we need libresolv (due to res_init or Hesiod)?
3996 if test "$resolv" = yes && test $opsys != darwin; then
4003 # These tell us which Kerberos-related libraries to use.
4010 if test "${with_kerberos}" != no; then
4012 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4013 if test $have_com_err = yes; then
4014 COM_ERRLIB=-lcom_err
4015 LIBS="$COM_ERRLIB $LIBS"
4017 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4018 if test $have_crypto = yes; then
4020 LIBS="$CRYPTOLIB $LIBS"
4022 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4023 if test $have_k5crypto = yes; then
4024 CRYPTOLIB=-lk5crypto
4025 LIBS="$CRYPTOLIB $LIBS"
4027 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4028 if test $have_krb5=yes; then
4030 LIBS="$KRB5LIB $LIBS"
4032 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4033 if test "${with_kerberos5}" = no; then
4034 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4035 if test $have_des425 = yes; then
4037 LIBS="$DESLIB $LIBS"
4039 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4040 if test $have_des = yes; then
4042 LIBS="$DESLIB $LIBS"
4045 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4046 if test $have_krb4 = yes; then
4048 LIBS="$KRB4LIB $LIBS"
4050 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4051 if test $have_krb = yes; then
4053 LIBS="$KRB4LIB $LIBS"
4058 if test "${with_kerberos5}" != no; then
4059 AC_CHECK_HEADERS(krb5.h,
4060 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4061 [#include <krb5.h>])])
4063 AC_CHECK_HEADERS(krb.h,,
4064 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4065 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4067 AC_CHECK_HEADERS(com_err.h)
4071 AC_SUBST(COM_ERRLIB)
4077 AC_CHECK_HEADERS(valgrind/valgrind.h)
4079 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4081 AC_CHECK_FUNCS_ONCE(tzset)
4084 AC_CHECK_FUNC(socket, , ok_so_far=no)
4085 if test $ok_so_far = yes; then
4086 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4088 if test $ok_so_far = yes; then
4089 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4091 if test $ok_so_far = yes; then
4092 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4093 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4094 [Define to 1 if you have inet sockets.])
4099 AC_CHECK_FUNCS(snprintf)
4101 dnl Check for glib. This differs from other library checks in that
4102 dnl Emacs need not link to glib unless some other library is already
4103 dnl linking to glib. Although glib provides no facilities that Emacs
4104 dnl needs for its own purposes, when glib is present Emacs needs to
4105 dnl use primitives like g_main_context_query to avoid clashing with
4106 dnl glib at a low level.
4108 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4112 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4113 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4114 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS $CAIRO_CFLAGS"
4115 LIBS="$LIBS $GFILENOTIFY_LIBS $CAIRO_LIBS"
4116 AC_MSG_CHECKING([whether GLib is linked in])
4117 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4120 [[g_print ("Hello world");]])],
4123 AC_MSG_RESULT([$links_glib])
4124 if test "${links_glib}" = "yes"; then
4125 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4126 if test "$HAVE_NS" = no;then
4134 dnl Adapted from Haible's version.
4135 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4136 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4137 [[char* cs = nl_langinfo(CODESET);]])],
4138 emacs_cv_langinfo_codeset=yes,
4139 emacs_cv_langinfo_codeset=no)
4141 if test $emacs_cv_langinfo_codeset = yes; then
4142 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4143 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4148 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4149 dnl how the tty code is related to POSIX and/or other versions of termios.
4150 dnl The following looks like a useful start.
4152 dnl AC_SYS_POSIX_TERMIOS
4153 dnl if test $ac_cv_sys_posix_termios = yes; then
4154 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4155 dnl and macros for terminal control.])
4156 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4159 dnl Turned on June 1996 supposing nobody will mind it.
4160 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4161 if test "${opsys}" != "mingw32"; then
4162 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4163 in the full name stands for the login id.])
4166 dnl Everybody supports this, except MS.
4167 dnl Seems like the kind of thing we should be testing for, though.
4168 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4169 if test "${opsys}" != "mingw32"; then
4170 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4173 dnl Everybody supports this, except MS-DOS.
4174 dnl Seems like the kind of thing we should be testing for, though.
4175 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4176 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4177 4.2-compatible sockets.])
4179 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4181 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4182 a null file, or a data sink.])
4183 if test "${opsys}" = "mingw32"; then
4184 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4186 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4189 if test "${opsys}" = "mingw32"; then
4194 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4195 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4196 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4197 dnl decides that a command-line argument to be passed to a MinGW program
4198 dnl is a PATH-style list of directories. But that heuristics plays it
4199 dnl safe, and only does the replacement when it is _absolutely_ sure it
4200 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4201 dnl which breaks in-tree builds. So we do this manually instead.
4202 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4203 dnl be computed as ':' in MSYS Bash.
4206 dnl Everybody supports this, except MS-DOS.
4207 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4209 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4212 AC_DEFINE(DIRECTORY_SEP, ['/'],
4213 [Character that separates directories in a file name.])
4215 if test "${opsys}" = "mingw32"; then
4216 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4217 [Returns true if character is a device separator.])
4219 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4220 [Returns true if character is a directory separator.])
4222 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4223 [Returns true if character is any form of separator.])
4225 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4226 [Returns true if character is a device separator.])
4228 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4229 [Returns true if character is a directory separator.])
4231 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4232 [Returns true if character is any form of separator.])
4235 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4239 dnl Unfortunately without libXmu we cannot support EditRes.
4240 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4241 AC_DEFINE(NO_EDITRES, 1)
4246 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4247 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4248 AC_DEFINE(NO_EDITRES, 1)
4254 irix6-5 | sol2* | unixware )
4255 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4256 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4257 dnl need the constant to dimension an array. So wire in the appropriate
4259 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4263 emacs_broken_SIGIO=no
4266 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4267 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4268 hpux* | irix6-5 | nacl | openbsd | sol2* | unixware )
4269 emacs_broken_SIGIO=yes
4273 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4274 dnl the way this system works, libc functions that return malloced
4275 dnl memory use the libc malloc implementation. Calling xfree or
4276 dnl xrealloc on the results of such functions results in a crash.
4278 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4279 dnl but that does not currently work on this system.
4281 dnl It is possible to completely override the malloc implementation on
4282 dnl AIX, but that involves putting the malloc functions in a shared
4283 dnl library and setting the MALLOCTYPE environment variable to point to
4284 dnl that shared library.
4286 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4287 dnl to avoid a crash just use the Emacs implementation for that function.
4289 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4290 dnl of this file, so that we do not check for get_current_dir_name
4291 dnl on AIX. But that might be fragile if something else ends
4292 dnl up testing for get_current_dir_name as a dependency.
4293 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4294 get_current_dir_name should not be used.])
4298 dnl Circumvent a bug in FreeBSD. In the following sequence of
4299 dnl writes/reads on a PTY, read(2) returns bogus data:
4301 dnl write(2) 1022 bytes
4302 dnl write(2) 954 bytes, get EAGAIN
4303 dnl read(2) 1024 bytes in process_read_output
4304 dnl read(2) 11 bytes in process_read_output
4306 dnl That is, read(2) returns more bytes than have ever been written
4307 dnl successfully. The 1033 bytes read are the 1022 bytes written
4308 dnl successfully after processing (for example with CRs added if the
4309 dnl terminal is set up that way which it is here). The same bytes will
4310 dnl be seen again in a later read(2), without the CRs.
4311 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4312 work around an issue when reading from a PTY.])
4318 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4319 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4324 darwin | dragonfly | freebsd | netbsd | openbsd )
4325 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4326 close a pty to make it a controlling terminal (it is already a
4327 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4331 dnl FIXME Surely we can test for this rather than hard-code it.
4333 netbsd | openbsd) sound_device="/dev/audio" ;;
4334 *) sound_device="/dev/dsp" ;;
4338 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4339 [Name of the default sound device.])
4342 dnl Emacs can read input using SIGIO and buffering characters itself,
4343 dnl or using CBREAK mode and making C-g cause SIGINT.
4344 dnl The choice is controlled by the variable interrupt_input.
4346 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4348 dnl Emacs uses the presence of the USABLE_SIGIO macro
4349 dnl to indicate whether or not signal-driven I/O is possible. It uses
4350 dnl INTERRUPT_INPUT to decide whether to use it by default.
4352 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4353 dnl CBREAK mode has two disadvantages
4354 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4355 dnl I hear that in system V this problem does not exist.
4356 dnl 2) Control-G causes output to be discarded.
4357 dnl I do not know whether this can be fixed in system V.
4359 dnl Another method of doing input is planned but not implemented.
4360 dnl It would have Emacs fork off a separate process
4361 dnl to read the input and send it to the true Emacs process
4364 darwin | gnu-linux | gnu-kfreebsd )
4365 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4370 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4371 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4372 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4373 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4374 dnl taking float or double parameters.
4376 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4377 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4378 file defines 'NeedWidePrototypes' as 'NO'.])
4383 dnl Used in process.c, this must be a loop, even if it only runs once.
4384 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4385 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4386 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4387 dnl trying suffixes 0-16.
4388 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4389 first PTY, if PTYs are supported.])
4390 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4391 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4392 end of a PTY, if non-standard.])
4393 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4394 end of a PTY, if non-standard.])
4398 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4399 dnl You allocate a pty by opening /dev/ptc to get the master side.
4400 dnl To get the name of the slave side, you just ttyname() the master side.
4401 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4402 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4406 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4407 dnl multi-line AC_DEFINEs are hard. :(
4408 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)])
4409 AC_DEFINE(PTY_NAME_SPRINTF, [])
4410 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4413 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4415 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4416 dnl Not used, because PTY_ITERATION is defined.
4417 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4418 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4419 dnl But we don't have to block SIGCHLD because it is blocked in the
4420 dnl implementation of grantpt.
4421 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4422 AC_DEFINE(PTY_NAME_SPRINTF, [])
4423 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4427 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4430 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | nacl )
4432 if test "x$ac_cv_func_grantpt" = xyes; then
4433 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4434 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4435 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4436 dnl to prevent sigchld_handler from intercepting the child's death.
4437 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); }])
4438 dnl if HAVE_POSIX_OPENPT
4439 if test "x$ac_cv_func_posix_openpt" = xyes; then
4440 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4441 AC_DEFINE(PTY_NAME_SPRINTF, [])
4443 elif test "x$ac_cv_func_getpt" = xyes; then
4444 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4445 AC_DEFINE(PTY_NAME_SPRINTF, [])
4447 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4450 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4455 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4456 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4457 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4461 dnl It looks like this cannot be right, because it is not a loop.
4462 dnl However, process.c actually does this:
4468 dnl which presumably makes it OK, since irix == sgi (?).
4469 dnl FIXME it seems like this special treatment is unnecessary?
4470 dnl Why can't irix use a single-trip loop like eg cygwin?
4471 AC_DEFINE(PTY_ITERATION, [])
4472 dnl Not used, because PTY_ITERATION is defined.
4473 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4474 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); }])
4475 dnl No need to get the pty name at all.
4476 AC_DEFINE(PTY_NAME_SPRINTF, [])
4477 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4478 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4482 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4483 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4484 dnl from intercepting that death. If any child but grantpt's should die
4485 dnl within, it should be caught after sigrelse(2).
4486 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4487 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); }])
4491 dnl Comments are as per sol2*.
4492 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4493 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); }])
4500 dnl This change means that we don't loop through allocate_pty too
4501 dnl many times in the (rare) event of a failure.
4502 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4503 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4504 dnl Push various streams modules onto a PTY channel. Used in process.c.
4505 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.])
4510 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4511 "typing" a signal character on the pty.])
4514 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4515 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4516 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4517 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4520 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4521 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4522 gnu-linux | gnu-kfreebsd )
4524 AC_MSG_CHECKING([for signals via characters])
4525 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4526 #include <linux/version.h>
4527 #if LINUX_VERSION_CODE < 0x20400
4528 # error "Linux version too old"
4530 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4532 AC_MSG_RESULT([$emacs_signals_via_chars])
4533 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4538 AH_TEMPLATE(TAB3, [Undocumented.])
4541 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4543 gnu | dragonfly | freebsd | netbsd | openbsd )
4544 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4545 AC_DEFINE(TAB3, OXTABS)
4548 gnu-linux | gnu-kfreebsd )
4549 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4553 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4554 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4555 [Mark a secondary stack, like the register stack on the ia64.]), [])
4559 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4560 run_time_remap; for HPUX.])
4565 dnl This won't be used automatically yet. We also need to know, at least,
4566 dnl that the stack is continuous.
4567 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4568 registers relevant for conservative garbage collection in the jmp_buf.])
4572 dnl Not all the architectures are tested, but there are Debian packages
4573 dnl for SCM and/or Guile on them, so the technique must work. See also
4574 dnl comments in alloc.c concerning setjmp and gcc.
4575 dnl Fixme: it's probably safe to just use the GCC conditional below.
4576 gnu-linux | gnu-kfreebsd )
4577 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4578 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4579 || defined __alpha__ || defined __mips__ || defined __s390__ \
4580 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4581 || defined __ia64__ || defined __sh__
4584 # error "setjmp not known to work on this arch"
4586 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4591 if test x$GCC = xyes; then
4592 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4593 AC_DEFINE(GC_SETJMP_WORKS, 1)
4596 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4597 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4598 AC_DEFINE(GC_SETJMP_WORKS, 1)
4603 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4604 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4607 [[#include <setjmp.h>
4609 # define _longjmp longjmp
4614 _longjmp (j, 1);]])],
4615 [emacs_cv_func__setjmp=yes],
4616 [emacs_cv_func__setjmp=no])])
4617 if test $emacs_cv_func__setjmp = yes; then
4618 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4621 # We need to preserve signal mask to handle C stack overflows.
4622 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4625 [[#include <setjmp.h>
4628 if (! sigsetjmp (j, 1))
4629 siglongjmp (j, 1);]])],
4630 [emacs_cv_func_sigsetjmp=yes],
4631 [emacs_cv_func_sigsetjmp=no])])
4632 if test $emacs_cv_func_sigsetjmp = yes; then
4633 AC_DEFINE([HAVE_SIGSETJMP], 1,
4634 [Define to 1 if sigsetjmp and siglongjmp work.])
4637 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4638 yes,yes,* | *,*,mingw32)
4639 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4640 [Define to 1 if C stack overflow can be handled in some cases.]);;
4645 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4646 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4647 dnl and this is all we need.
4648 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4655 dnl Used in xfaces.c.
4656 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4657 some systems, where it requires time.h.])
4662 dnl Define symbols to identify the version of Unix this is.
4663 dnl Define all the symbols that apply correctly.
4664 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4665 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4666 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4667 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4672 dnl This symbol should be defined on AIX Version 3 ???????
4673 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4675 # error "_AIX not defined"
4677 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4681 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4685 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4686 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4687 dnl distinguish OS X from pure Darwin.
4688 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4691 gnu-linux | gnu-kfreebsd )
4693 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4698 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4703 AC_DEFINE(USG5_4, [])
4704 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4708 AC_DEFINE(DOS_NT, [])
4709 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4710 if test "x$ac_enable_checking" != "x" ; then
4711 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4717 AC_DEFINE(USG5_4, [])
4718 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4723 AC_DEFINE(USG5_4, [])
4727 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4730 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4731 emacs_cv_usable_FIONREAD=no
4735 emacs_cv_usable_FIONREAD=yes
4740 [AC_LANG_PROGRAM([[#include <sys/types.h>
4741 #include <sys/ioctl.h>
4743 # include <sys/filio.h>
4746 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4747 [emacs_cv_usable_FIONREAD=yes],
4748 [emacs_cv_usable_FIONREAD=no])
4751 if test $emacs_cv_usable_FIONREAD = yes; then
4752 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4754 if test $emacs_broken_SIGIO = no; then
4755 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4757 [AC_LANG_PROGRAM([[#include <fcntl.h>
4760 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4761 [emacs_cv_usable_SIGIO=yes],
4762 [emacs_cv_usable_SIGIO=no])],
4763 [emacs_cv_usable_SIGIO=yes],
4764 [emacs_cv_usable_SIGIO=no])
4765 if test $emacs_cv_usable_SIGIO = yes; then
4766 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4773 dnl It works to open the pty's tty in the parent (Emacs), then
4774 dnl close and reopen it in the child.
4775 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4776 works to open a pty's tty in the parent process, then close and
4777 reopen it in the child.])
4781 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4782 use VSUSP instead of VSWTCH.])
4786 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4791 # Set up the CFLAGS for real compilation, so we can substitute it.
4792 CFLAGS="$REAL_CFLAGS"
4793 CPPFLAGS="$REAL_CPPFLAGS"
4796 ## Hack to detect a buggy GCC version.
4797 if test "$GCC" = yes && \
4798 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4800 *-fno-optimize-sibling-calls*) ;;
4802 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4806 version=$PACKAGE_VERSION
4808 copyright="Copyright (C) 2015 Free Software Foundation, Inc."
4809 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4810 [Short copyright string for this version of Emacs.])
4813 ### Specify what sort of things we'll be editing into Makefile and config.h.
4814 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4816 AC_SUBST(configuration)
4821 AC_SUBST(exec_prefix)
4824 AC_SUBST(sharedstatedir)
4825 AC_SUBST(libexecdir)
4829 AC_SUBST(standardlisppath)
4830 AC_SUBST(locallisppath)
4832 AC_SUBST(x_default_search_path)
4834 AC_SUBST(archlibdir)
4840 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4841 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4842 ## end of LIBX_BASE, but nothing ever set it.
4843 AC_SUBST(LD_SWITCH_X_SITE)
4844 AC_SUBST(C_SWITCH_X_SITE)
4845 AC_SUBST(GNUSTEP_CFLAGS)
4847 ## Used in lwlib/Makefile.in.
4848 AC_SUBST(X_TOOLKIT_TYPE)
4850 AC_SUBST(ns_appbindir)
4851 AC_SUBST(ns_appresdir)
4853 AC_SUBST(GNU_OBJC_CFLAGS)
4854 AC_SUBST(OTHER_FILES)
4856 if test -n "${term_header}"; then
4857 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4858 [Define to the header for the built-in window system.])
4861 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4862 [Define to the canonical Emacs configuration name.])
4863 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4864 [Define to the options passed to configure.])
4865 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4866 define this to include extra configuration information.])
4870 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4877 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4878 AC_DEFINE(HAVE_X_WINDOWS, 1,
4879 [Define to 1 if you want to use the X window system.])
4881 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4883 if test "$USE_CAIRO" = "yes"; then
4884 FONT_OBJ="ftfont.o ftcrfont.o"
4885 elif test "$HAVE_XFT" = "yes"; then
4886 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4887 elif test "$HAVE_FREETYPE" = "yes"; then
4888 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4898 if test "${USE_X_TOOLKIT}" != "none" ; then
4900 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4901 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4902 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4903 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4904 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4908 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4909 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4913 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4914 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4915 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4919 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4920 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4923 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4926 AC_SUBST(WIDGET_OBJ)
4929 case "$USE_X_TOOLKIT" in
4930 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4931 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4932 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4934 AC_SUBST(TOOLKIT_LIBW)
4936 if test "${opsys}" != "mingw32"; then
4937 if test "$USE_X_TOOLKIT" = "none"; then
4938 LIBXT_OTHER="\$(LIBXSM)"
4940 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4943 AC_SUBST(LIBXT_OTHER)
4945 if test "${HAVE_X11}" = "yes" ; then
4946 AC_DEFINE(HAVE_X11, 1,
4947 [Define to 1 if you want to use version 11 of X windows.])
4948 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4952 AC_SUBST(LIBX_OTHER)
4954 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4956 elif test "$USE_X_TOOLKIT" = none; then
4957 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4959 LIBXMENU='$(lwlibdir)/liblw.a'
4963 AC_CACHE_CHECK([for struct alignment],
4964 [emacs_cv_struct_alignment],
4966 [AC_LANG_PROGRAM([[#include <stddef.h>
4967 struct __attribute__ ((aligned (8))) s { char c; };
4968 struct t { char c; struct s s; };
4969 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
4971 [emacs_cv_struct_alignment=yes],
4972 [emacs_cv_struct_alignment=no])])
4973 if test "$emacs_cv_struct_alignment" = yes; then
4974 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
4975 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
4976 structure to an N-byte boundary.])
4979 if test "${GNU_MALLOC}" = "yes" ; then
4980 AC_DEFINE(GNU_MALLOC, 1,
4981 [Define to 1 if you want to use the GNU memory allocator.])
4985 if test "${REL_ALLOC}" = "yes" ; then
4986 AC_DEFINE(REL_ALLOC, 1,
4987 [Define REL_ALLOC if you want to use the relocating allocator for
4990 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4992 AC_SUBST(RALLOC_OBJ)
4994 if test "$opsys" = "cygwin"; then
4995 CYGWIN_OBJ="sheap.o cygw32.o"
4996 ## Cygwin differs because of its unexec().
4998 POST_ALLOC_OBJ=lastfile.o
4999 elif test "$opsys" = "mingw32"; then
5002 POST_ALLOC_OBJ=lastfile.o
5005 PRE_ALLOC_OBJ=lastfile.o
5008 AC_SUBST(CYGWIN_OBJ)
5009 AC_SUBST(PRE_ALLOC_OBJ)
5010 AC_SUBST(POST_ALLOC_OBJ)
5012 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5013 dnl verbatim defined above. The tricky name is apropos, as this hack
5014 dnl makes Fortify go sour!
5015 AH_VERBATIM([FORTIFY_SOUR],
5016 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5017 The workaround disables some useful run-time checking, so it
5018 should be conditional to the platforms with the performance bug.
5019 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5020 #if defined __APPLE__ && defined __GNUC__
5021 # ifndef _DONT_USE_CTYPE_INLINE_
5022 # define _DONT_USE_CTYPE_INLINE_
5024 # ifndef _FORTIFY_SOURCE
5025 # define _FORTIFY_SOURCE 0
5030 # If user asks to omit features, disable optional features that gnulib
5031 # might otherwise enable.
5032 if test "$with_features" = no && test "$enable_acl" != yes; then
5036 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5037 # it temporarily reverts them to their pre-pkg-config values,
5038 # because gnulib needs to work with both src (which uses the
5039 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5040 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5041 # and it therefore needs to run in an environment where LIBS does not
5042 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5043 # for some package unrelated to lib-src.
5046 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5047 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5048 gl_ASSERT_NO_GNULIB_POSIXCHECK
5049 gl_ASSERT_NO_GNULIB_TESTS
5054 if test "${opsys}" = "mingw32"; then
5055 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5056 # Remove unneeded switches from the value of CC that goes to Makefiles
5057 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5061 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5063 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5066 ## The -headerpad option tells ld (see man page) to leave room at the
5067 ## end of the header for adding load commands. Needed for dumping.
5068 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5069 ## architecture (where they are 78 bytes each). The actual number of
5070 ## load commands added is not consistent but normally ranges from
5071 ## about 14 to about 34. Setting it high gets us plenty of slop and
5072 ## only costs about 1.5K of wasted binary space.
5073 headerpad_extra=1000
5074 if test "$HAVE_NS" = "yes"; then
5075 libs_nsgui="-framework AppKit"
5076 if test "$NS_IMPL_COCOA" = "yes"; then
5077 libs_nsgui="$libs_nsgui -framework IOKit"
5082 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5084 ## This is here because src/Makefile.in did some extra fiddling around
5085 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5086 ## LD_SWITCH_SYSTEM_TEMACS instead,
5087 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5088 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5091 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5092 ## find X at run-time.
5093 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5094 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5095 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5096 ## had different values in configure (in ac_link) and src/Makefile.in.
5097 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5098 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5101 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5102 case "$canonical" in
5103 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5104 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5108 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5111 # -nopie fixes a temacs segfault on Gentoo, OpenBSD, and other systems
5112 # with "hardened" GCC configurations for some reason (Bug#18784).
5113 # We don't know why -nopie works, but not segfaulting is better than
5114 # segfaulting. Use ac_c_werror_flag=yes when trying -nopie, otherwise
5115 # clang keeps warning that it does not understand -nopie, and pre-4.6
5116 # GCC has a similar problem (Bug#20338).
5117 AC_CACHE_CHECK([whether $CC accepts -nopie],
5118 [emacs_cv_prog_cc_nopie],
5119 [emacs_save_c_werror_flag=$ac_c_werror_flag
5120 emacs_save_LDFLAGS=$LDFLAGS
5121 ac_c_werror_flag=yes
5122 LDFLAGS="$LDFLAGS -nopie"
5123 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
5124 [emacs_cv_prog_cc_nopie=yes],
5125 [emacs_cv_prog_cc_nopie=no])
5126 ac_c_werror_flag=$emacs_save_c_werror_flag
5127 LDFLAGS=$emacs_save_LDFLAGS])
5128 if test "$emacs_cv_prog_cc_nopie" = yes; then
5129 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie"
5132 if test x$ac_enable_profiling != x ; then
5134 *freebsd | gnu-linux) ;;
5135 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5139 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5141 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5143 ## Common for all window systems
5144 if test "$window_system" != "none"; then
5145 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5146 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5147 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5150 AC_SUBST(WINDOW_SYSTEM_OBJ)
5152 AH_TOP([/* GNU Emacs site configuration template file.
5154 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2015
5155 Free Software Foundation, Inc.
5157 This file is part of GNU Emacs.
5159 GNU Emacs is free software: you can redistribute it and/or modify
5160 it under the terms of the GNU General Public License as published by
5161 the Free Software Foundation, either version 3 of the License, or
5162 (at your option) any later version.
5164 GNU Emacs is distributed in the hope that it will be useful,
5165 but WITHOUT ANY WARRANTY; without even the implied warranty of
5166 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5167 GNU General Public License for more details.
5169 You should have received a copy of the GNU General Public License
5170 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5173 /* No code in Emacs #includes config.h twice, but some bits of code
5174 intended to work with other packages as well (like gmalloc.c)
5175 think they can include it as many times as they like. */
5176 #ifndef EMACS_CONFIG_H
5177 #define EMACS_CONFIG_H
5180 AH_BOTTOM([#include <conf_post.h>
5182 #endif /* EMACS_CONFIG_H */
5191 #### Report on what we decided to do.
5192 #### Report GTK as a toolkit, even if it doesn't use Xt.
5193 #### It makes printing result more understandable as using GTK sets
5194 #### toolkit_scroll_bars to yes by default.
5195 if test "${HAVE_GTK}" = "yes"; then
5196 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5199 if test $USE_ACL -ne 0; then
5200 ACL_SUMMARY="yes $LIB_ACL"
5205 emacs_standard_dirs='Standard dirs'
5207 Configured for '${canonical}'.
5209 Where should the build process find the source code? ${srcdir}
5210 What compiler should emacs be built with? ${CC} ${CFLAGS}
5211 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5212 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5213 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5214 What window system should Emacs use? ${window_system}
5215 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5216 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5217 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5220 emacs_config_features=
5221 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5222 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5223 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES; do
5226 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5227 CAIRO|TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5228 *) eval val=\${HAVE_$opt} ;;
5231 xno|xnone|x) continue ;;
5236 GTK*|LUCID|MOTIF) opt=$val ;;
5241 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5244 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5245 [Summary of some of the main features enabled by configure.])
5247 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5248 Does Emacs use -lXpm? ${HAVE_XPM}
5249 Does Emacs use -ljpeg? ${HAVE_JPEG}
5250 Does Emacs use -ltiff? ${HAVE_TIFF}
5251 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5252 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5253 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5254 Does Emacs use cairo? ${USE_CAIRO}
5255 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5256 Does Emacs support sound? ${HAVE_SOUND}
5257 Does Emacs use -lgpm? ${HAVE_GPM}
5258 Does Emacs use -ldbus? ${HAVE_DBUS}
5259 Does Emacs use -lgconf? ${HAVE_GCONF}
5260 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5261 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5262 Does Emacs use access control lists? ${ACL_SUMMARY}
5263 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5264 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5265 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5266 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5267 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5268 Does Emacs use -lotf? ${HAVE_LIBOTF}
5269 Does Emacs use -lxft? ${HAVE_XFT}
5270 Does Emacs directly use zlib? ${HAVE_ZLIB}
5271 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5272 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5275 if test -n "${EMACSDATA}"; then
5276 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5278 if test -n "${EMACSDOC}"; then
5279 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5284 if test "$HAVE_NS" = "yes"; then
5286 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5287 The installed application will go to nextstep/Emacs.app and can be
5288 run or moved from there."])
5289 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5290 echo "The application will be fully self-contained."
5292 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5293 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5294 to run if these resources are not installed."])
5299 if test "${opsys}" = "cygwin"; then
5301 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5307 # Remove any trailing slashes in these variables.
5309 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5311 case $exec_prefix in
5312 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5315 if test "$HAVE_NS" = "yes"; then
5316 if test "$NS_IMPL_GNUSTEP" = yes; then
5317 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5318 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5319 ns_check_file=Resources/Info-gnustep.plist
5321 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5322 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5323 ns_check_file=Contents/Info.plist
5325 AC_SUBST(ns_check_file)
5328 dnl config.status treats $srcdir specially, so I think this is ok...
5329 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5331 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5332 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5333 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5334 dnl (else you get "no 'Makefile.am' found for any configure output").
5335 dnl This will work, but you get a config.status that is not quite right
5336 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5337 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5338 dnl it seems better to just live with the duplication.
5339 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5341 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5342 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5343 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5344 leim/Makefile nextstep/Makefile nt/Makefile])
5346 dnl test/ is not present in release tarfiles.
5347 opt_makefile=test/automated/Makefile
5349 if test -f "$srcdir/$opt_makefile.in"; then
5350 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5351 dnl Again, it's best not to use a variable. Though you can add
5352 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5353 AC_CONFIG_FILES([test/automated/Makefile])
5357 dnl The admin/ directory used to be excluded from tarfiles.
5358 if test -d $srcdir/admin; then
5359 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5360 AC_CONFIG_FILES([admin/charsets/Makefile])
5361 AC_CONFIG_FILES([admin/unidata/Makefile])
5362 AC_CONFIG_FILES([admin/grammars/Makefile])
5366 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5368 AC_SUBST(SUBDIR_MAKEFILES_IN)
5370 dnl You might wonder (I did) why epaths.h is generated by running make,
5371 dnl rather than just letting configure generate it from epaths.in.
5372 dnl One reason is that the various paths are not fully expanded (see above);
5373 dnl eg gamedir=${prefix}/var/games/emacs.
5374 dnl Secondly, the GNU Coding standards require that one should be able
5375 dnl to run 'make prefix=/some/where/else' and override the values set
5376 dnl by configure. This also explains the 'move-if-change' test and
5377 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5378 AC_CONFIG_COMMANDS([src/epaths.h], [
5379 if test "${opsys}" = "mingw32"; then
5380 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5382 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5383 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5384 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5386 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5387 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5389 AC_CONFIG_COMMANDS([src/.gdbinit], [
5390 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5391 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5395 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5396 dnl See comments for etc-refcards-emacsver.tex.
5397 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5398 dnl it is not quite the same. But we are generating in $srcdir.
5399 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5400 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5401 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5404 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5405 dnl then a directory etc/refcards is created in the build directory,
5406 dnl which is probably harmless, but confusing (in out-of-tree builds).
5407 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5408 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5409 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5410 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5411 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5416 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])