1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the 'configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2016 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 25.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
135 dnl Fairly arbitrary, older versions might work too.
136 AM_INIT_AUTOMAKE(1.11)
138 dnl Canonicalize the configuration name.
144 if test -z "$host_alias"; then
146 # No --host argument was given to 'configure'; therefore $host
147 # was set to a default value based on the build platform. But
148 # this default value may be wrong if we are building from a
149 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
150 # Therefore, we'll try to get the right host platform from the
153 AC_MSG_CHECKING([the compiler's target])
154 if test -z "$CC"; then
159 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
163 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
164 Please explicitly provide --host.])
166 *) AC_MSG_WARN([Compiler reported non-standard target.
167 Defaulting to $host.])
170 AC_MSG_RESULT([$host])
173 . $srcdir/nt/mingw-cfg.site
177 # srcdir is an absolute path. In this case, force the format
178 # "/c/foo/bar", to simplify later conversions to native Windows
179 # format ("c:/foo/bar").
180 srcdir=`cd "${srcdir}" && pwd -W`
181 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
182 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
188 configuration=${host_alias-${build_alias-$host}}
190 dnl Support for --program-prefix, --program-suffix and
191 dnl --program-transform-name options
194 dnl It is important that variables on the RHS not be expanded here,
195 dnl hence the single quotes. This is per the GNU coding standards, see
196 dnl (autoconf) Installation Directory Variables
197 dnl See also epaths.h below.
198 lispdir='${datadir}/emacs/${version}/lisp'
199 standardlisppath='${lispdir}'
200 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
201 '${datadir}/emacs/site-lisp'
202 lisppath='${locallisppath}:${standardlisppath}'
203 etcdir='${datadir}/emacs/${version}/etc'
204 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
205 etcdocdir='${datadir}/emacs/${version}/etc'
206 gamedir='${localstatedir}/games/emacs'
208 dnl Special option to disable the most of other options.
210 [AS_HELP_STRING([--without-all],
211 [omit almost all features and build
212 small executable with minimal dependencies])],
213 [with_features=$withval],
216 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
217 dnl Create a new --with option that defaults to being disabled.
218 dnl NAME is the base name of the option. The shell variable with_NAME
219 dnl will be set to either the user's value (if the option is
220 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
221 dnl option is not specified). Note that the shell variable name is
222 dnl constructed as autoconf does, by replacing non-alphanumeric
223 dnl characters with "_".
224 dnl HELP-STRING is the help text for the option.
225 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
226 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
227 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
230 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
231 dnl Create a new --with option that defaults to $with_features.
232 dnl NAME is the base name of the option. The shell variable with_NAME
233 dnl will be set either to 'no' (for a plain --without-NAME) or to
234 dnl 'yes' (if the option is not specified). Note that the shell
235 dnl variable name is constructed as autoconf does, by replacing
236 dnl non-alphanumeric characters with "_".
237 dnl HELP-STRING is the help text for the option.
238 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
239 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
240 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
243 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
244 if test "$with_pop" = yes; then
245 AC_DEFINE(MAIL_USE_POP)
247 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
249 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
250 if test "$with_kerberos" != no; then
253 AH_TEMPLATE(KERBEROS,
254 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
256 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
257 if test "${with_kerberos5}" != no; then
258 if test "${with_kerberos}" = no; then
262 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
265 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
266 dnl FIXME hesiod support may not be present, so it seems like an error
267 dnl to define, or at least use, this unconditionally.
268 if test "$with_hesiod" != no; then
269 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
272 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
273 if test "$with_mail_unlink" != no; then
274 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
277 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
278 [string giving default POP mail host])],
279 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
281 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
282 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
283 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
284 [ case "${withval}" in
285 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
286 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
287 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
292 [with_sound=$with_features])
294 dnl FIXME currently it is not the last.
295 dnl This should be the last --with option, because --with-x is
296 dnl added later on when we find the file name of X, and it's best to
297 dnl keep them together visually.
298 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
299 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
300 [ case "${withval}" in
301 y | ye | yes ) val=gtk ;;
303 l | lu | luc | luci | lucid ) val=lucid ;;
304 a | at | ath | athe | athen | athena ) val=athena ;;
305 m | mo | mot | moti | motif ) val=motif ;;
306 g | gt | gtk ) val=gtk ;;
310 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
311 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
312 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
313 'athena' and 'lucid' are synonyms.])
319 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit); allows buffer and string size up to 2GB on 32-bit hosts, at the cost of 10% to 30% slowdown of Lisp interpreter and larger memory footprint])
320 if test "$with_wide_int" = yes; then
321 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
324 dnl _ON results in a '--without' option in the --help output, so
325 dnl the help text should refer to "don't compile", etc.
326 with_xpm_set=${with_xpm+set}
327 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
328 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
329 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
330 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
331 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
332 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
333 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing])
334 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
335 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
337 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
338 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
339 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
341 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
342 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
343 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
344 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
345 [use Nextstep (OS X Cocoa or GNUstep) windowing system.
346 On by default on Mac OS X.])],[],[with_ns=maybe])
347 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
349 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
350 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
351 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
352 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
353 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
354 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
355 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
356 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
358 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
359 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
360 [ case "${withval}" in
361 y | ye | yes ) val=yes ;;
363 g | gf | gfi | gfil | gfile ) val=gfile ;;
364 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
365 w | w3 | w32 ) val=w32 ;;
366 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
367 this option's value should be 'yes', 'no', 'gfile', 'inotify' or 'w32'.
368 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
369 otherwise for the first of 'inotify' or 'gfile' that is usable.])
372 with_file_notification=$val
374 [with_file_notification=$with_features])
376 ## 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 the POSIX thread library.
2197 AC_CHECK_HEADERS_ONCE(pthread.h)
2198 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2199 AC_CACHE_CHECK([for pthread library],
2200 [emacs_cv_pthread_lib],
2201 [emacs_cv_pthread_lib=no
2203 for emacs_pthread_lib in 'none needed' -lpthread; do
2204 case $emacs_pthread_lib in
2205 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2209 [[#include <pthread.h>
2211 sigset_t old_mask, new_mask;
2212 void noop (void) {}]],
2213 [[pthread_t th = pthread_self ();
2215 status += pthread_create (&th, 0, 0, 0);
2216 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2217 status += pthread_kill (th, 0);
2218 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2219 || defined DOUG_LEA_MALLOC)
2220 /* Test for pthread_atfork only if gmalloc uses it,
2221 as older-style hosts like MirBSD 10 lack it. */
2222 status += pthread_atfork (noop, noop, noop);
2225 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2227 if test "$emacs_cv_pthread_lib" != no; then
2231 if test "$emacs_cv_pthread_lib" != no; then
2232 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2233 case $emacs_cv_pthread_lib in
2234 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2236 ac_cv_func_pthread_sigmask=yes
2237 # Some systems optimize for single-threaded programs by default, and
2238 # need special flags to disable these optimizations. For example, the
2239 # definition of 'errno' in <errno.h>.
2242 AC_DEFINE([_REENTRANT], 1,
2243 [Define to 1 if your system requires this in multithreaded code.]);;
2245 AC_DEFINE([_THREAD_SAFE], 1,
2246 [Define to 1 if your system requires this in multithreaded code.]);;
2250 AC_SUBST([LIB_PTHREAD])
2252 dnl Check for need for bigtoc support on IBM AIX
2256 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2258 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2259 *) gdb_cv_bigtoc=-bbigtoc ;;
2262 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2263 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2268 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2269 # is for the tests that follow. We set them back later on.
2271 REAL_CFLAGS="$CFLAGS"
2272 REAL_CPPFLAGS="$CPPFLAGS"
2275 if test "${HAVE_X11}" = "yes"; then
2276 DEFS="$C_SWITCH_X_SITE $DEFS"
2277 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2279 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2280 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2282 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2283 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2284 # but it's more convenient here to set LD_RUN_PATH since this
2285 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2286 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2287 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2291 if test "${opsys}" = "gnu-linux"; then
2292 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2293 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2294 [[XOpenDisplay ("foo");]])],
2295 [xgnu_linux_first_failure=no],
2296 [xgnu_linux_first_failure=yes])
2297 if test "${xgnu_linux_first_failure}" = "yes"; then
2298 OLD_CPPFLAGS="$CPPFLAGS"
2300 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2301 LIBS="$LIBS -b i486-linuxaout"
2302 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2303 [[XOpenDisplay ("foo");]])],
2304 [xgnu_linux_second_failure=no],
2305 [xgnu_linux_second_failure=yes])
2306 if test "${xgnu_linux_second_failure}" = "yes"; then
2307 # If we get the same failure with -b, there is no use adding -b.
2308 # So leave it out. This plays safe.
2311 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2312 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2315 CPPFLAGS=$OLD_CPPFLAGS
2322 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2323 # header files included from there.
2324 AC_MSG_CHECKING(for Xkb)
2325 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2326 #include <X11/XKBlib.h>]],
2327 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2328 emacs_xkb=yes, emacs_xkb=no)
2329 AC_MSG_RESULT($emacs_xkb)
2330 if test $emacs_xkb = yes; then
2331 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2334 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2335 XScreenNumberOfScreen)
2338 if test "${window_system}" = "x11"; then
2339 AC_MSG_CHECKING(X11 version 6)
2340 AC_CACHE_VAL(emacs_cv_x11_version_6,
2341 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2342 [[#if XlibSpecificationRelease < 6
2345 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2346 if test $emacs_cv_x11_version_6 = yes; then
2347 AC_MSG_RESULT(6 or newer)
2348 AC_DEFINE(HAVE_X11R6, 1,
2349 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2350 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2351 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2355 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2356 [Define if you have usable X11R6-style XIM support.])
2360 AC_MSG_RESULT(before 6)
2365 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2367 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2368 if test "${with_rsvg}" != "no"; then
2369 RSVG_REQUIRED=2.11.0
2370 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2372 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2373 AC_SUBST(RSVG_CFLAGS)
2376 if test $HAVE_RSVG = yes; then
2377 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2378 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2379 # Windows loads librsvg dynamically
2380 if test "${opsys}" = "mingw32"; then
2388 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2389 if test "${with_imagemagick}" != "no"; then
2390 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2391 ## 6.8.2 makes Emacs crash; see Bug#13867.
2392 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2393 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2394 AC_SUBST(IMAGEMAGICK_CFLAGS)
2395 AC_SUBST(IMAGEMAGICK_LIBS)
2397 if test $HAVE_IMAGEMAGICK = yes; then
2398 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2401 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2402 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2403 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2413 gtk_term_header=$term_header
2416 if test "${opsys}" != "mingw32"; then
2417 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2420 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2422 dnl Checks for libraries.
2423 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2424 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2425 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2426 AC_MSG_ERROR($GTK_PKG_ERRORS)
2428 if test "$pkg_check_gtk" = "yes"; then
2429 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2430 GTK_OBJ=emacsgtkfixed.o
2431 gtk_term_header=gtkutil.h
2432 USE_GTK_TOOLKIT="GTK3"
2433 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2434 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2435 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2436 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2437 [Define to 1 to disable Glib deprecation warnings.])
2441 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2445 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2448 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2450 dnl Checks for libraries.
2451 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2452 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2453 if test "$pkg_check_gtk" = "no" &&
2454 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2456 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2458 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2465 if test x"$pkg_check_gtk" = xyes; then
2468 CFLAGS="$CFLAGS $GTK_CFLAGS"
2469 LIBS="$GTK_LIBS $LIBS"
2470 dnl Try to compile a simple GTK program.
2471 AC_MSG_CHECKING([whether GTK compiles])
2475 [[/* Check the Gtk and Glib APIs. */
2476 #include <gtk/gtk.h>
2477 #include <glib-object.h>
2479 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2483 GtkSettings *gs = 0;
2484 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2485 strict C prohibits this. Use gtk_main_iteration to test that the
2486 libraries are there. */
2487 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2488 0, 0, 0, G_CALLBACK (callback), 0))
2489 gtk_main_iteration ();
2492 AC_MSG_RESULT([$GTK_COMPILES])
2493 if test "${GTK_COMPILES}" != "yes"; then
2495 if test "$USE_X_TOOLKIT" != "maybe"; then
2496 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2499 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2501 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2502 GTK_OBJ="gtkutil.o $GTK_OBJ"
2503 term_header=$gtk_term_header
2505 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2506 closing open displays. This is no problem if you just use
2507 one display, but if you use more than one and close one of them
2509 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2517 if test "${HAVE_GTK}" = "yes"; then
2519 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2520 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2521 if test "$with_toolkit_scroll_bars" != no; then
2522 with_toolkit_scroll_bars=yes
2525 dnl Check if we have the old file selection dialog declared and
2526 dnl in the link library. In 2.x it may be in the library,
2527 dnl but not declared if deprecated featured has been selected out.
2528 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2529 HAVE_GTK_FILE_SELECTION=no
2530 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2531 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2532 #include <gtk/gtk.h>])
2533 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2534 AC_CHECK_FUNCS(gtk_file_selection_new)
2537 dnl Same as above for gtk_handle_box.
2538 HAVE_GTK_HANDLE_BOX=no
2539 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2540 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2541 #include <gtk/gtk.h>])
2542 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2543 AC_CHECK_FUNCS(gtk_handle_box_new)
2546 dnl Same as above for gtk_tearoff_menu_item.
2547 HAVE_GTK_TEAROFF_MENU_ITEM=no
2548 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2549 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2550 #include <gtk/gtk.h>])
2551 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2552 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2555 dnl Check for functions introduced in 2.14 and later.
2556 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2557 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2558 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2559 gtk_orientable_set_orientation \
2560 gtk_window_set_has_resize_grip)
2562 term_header=gtkutil.h
2568 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2569 dnl other platforms.
2572 if test "${with_dbus}" = "yes"; then
2573 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2574 if test "$HAVE_DBUS" = yes; then
2575 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2576 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2577 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2580 LIBS="$LIBS $DBUS_LIBS"
2581 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2582 dbus_type_is_valid \
2583 dbus_validate_bus_name \
2584 dbus_validate_path \
2585 dbus_validate_interface \
2586 dbus_validate_member)
2591 AC_SUBST(DBUS_CFLAGS)
2595 dnl GSettings has been tested under GNU/Linux only.
2597 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2598 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2599 if test "$HAVE_GSETTINGS" = "yes"; then
2601 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2603 LIBS="$LIBS $GSETTINGS_LIBS"
2604 AC_MSG_CHECKING([whether GSettings is in gio])
2607 [[/* Check that gsettings really is present. */
2608 #include <glib-object.h>
2609 #include <gio/gio.h>
2612 GSettings *settings;
2613 GVariant *val = g_settings_get_value (settings, "");
2615 [], HAVE_GSETTINGS=no)
2616 AC_MSG_RESULT([$HAVE_GSETTINGS])
2618 if test "$HAVE_GSETTINGS" = "yes"; then
2619 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2620 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2621 SETTINGS_LIBS="$GSETTINGS_LIBS"
2628 dnl GConf has been tested under GNU/Linux only.
2629 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2631 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2632 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2633 if test "$HAVE_GCONF" = yes; then
2634 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2635 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2636 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2637 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2641 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2642 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2643 if test "$HAVE_GOBJECT" = "yes"; then
2644 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2645 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2647 SAVE_CFLAGS="$CFLAGS"
2649 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2650 LIBS="$SETTINGS_LIBS $LIBS"
2651 CFLAGS="$SAVE_CFLAGS"
2654 AC_SUBST(SETTINGS_CFLAGS)
2655 AC_SUBST(SETTINGS_LIBS)
2658 dnl SELinux is available for GNU/Linux only.
2661 if test "${with_selinux}" = "yes"; then
2662 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2663 if test "$HAVE_LIBSELINUX" = yes; then
2664 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2665 LIBSELINUX_LIBS=-lselinux
2668 AC_SUBST(LIBSELINUX_LIBS)
2671 if test "${with_gnutls}" = "yes" ; then
2672 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2673 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2674 if test "${HAVE_GNUTLS}" = "yes"; then
2675 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2676 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2677 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2680 # Windows loads GnuTLS dynamically
2681 if test "${opsys}" = "mingw32"; then
2686 AC_SUBST(LIBGNUTLS_LIBS)
2687 AC_SUBST(LIBGNUTLS_CFLAGS)
2692 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2693 dnl a particular library. This doesn't make much sense?
2694 if test "${HAVE_NS}" = yes && test ${with_file_notification} = yes; then
2695 with_file_notification=no
2698 dnl MS Windows native file monitor is available for mingw32 only.
2699 case $with_file_notification,$opsys in
2701 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2702 this is only supported on MS-Windows native and MinGW32 builds.
2703 Consider using gfile instead.])
2705 w32,* | yes,mingw32)
2706 AC_CHECK_HEADER(windows.h)
2707 if test "$ac_cv_header_windows_h" = yes ; then
2708 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2709 NOTIFY_OBJ=w32notify.o
2710 NOTIFY_SUMMARY="yes (w32)"
2714 dnl inotify is available only on GNU/Linux.
2715 case $with_file_notification,$NOTIFY_OBJ in
2717 AC_CHECK_HEADER(sys/inotify.h)
2718 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2719 AC_CHECK_FUNC(inotify_init1)
2720 if test "$ac_cv_func_inotify_init1" = yes; then
2721 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2722 NOTIFY_OBJ=inotify.o
2723 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2728 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2729 dnl has been added in glib 2.24. It has been tested under
2731 case $with_file_notification,$NOTIFY_OBJ in
2733 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2734 if test "$HAVE_GFILENOTIFY" = "yes"; then
2735 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2736 NOTIFY_OBJ=gfilenotify.o
2737 NOTIFY_SUMMARY="yes -lgio (gfile)"
2741 case $with_file_notification,$NOTIFY_OBJ in
2742 yes,* | no,* | *,?*) ;;
2743 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2746 if test -n "$NOTIFY_OBJ"; then
2747 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2749 AC_SUBST(NOTIFY_OBJ)
2750 AC_SUBST(GFILENOTIFY_CFLAGS)
2751 AC_SUBST(GFILENOTIFY_LIBS)
2753 dnl Do not put whitespace before the #include statements below.
2754 dnl Older compilers (eg sunos4 cc) choke on it.
2757 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2758 if test "$with_xaw3d" != no; then
2759 AC_CACHE_VAL(emacs_cv_xaw3d,
2760 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2761 #include <X11/Intrinsic.h>
2762 #include <X11/Xaw3d/Simple.h>]],
2764 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2765 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2766 emacs_cv_xaw3d=no)])
2770 if test $emacs_cv_xaw3d = yes; then
2771 AC_MSG_CHECKING(for xaw3d)
2772 AC_MSG_RESULT([yes; using Lucid toolkit])
2776 AC_DEFINE(HAVE_XAW3D, 1,
2777 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2779 AC_MSG_CHECKING(for xaw3d)
2781 AC_MSG_CHECKING(for libXaw)
2782 AC_CACHE_VAL(emacs_cv_xaw,
2783 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2784 #include <X11/Intrinsic.h>
2785 #include <X11/Xaw/Simple.h>]],
2789 if test $emacs_cv_xaw = yes; then
2790 AC_MSG_RESULT([yes; using Lucid toolkit])
2793 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2794 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2796 AC_MSG_ERROR([No X toolkit could be found.
2797 If you are sure you want Emacs compiled without an X toolkit, pass
2799 to configure. Otherwise, install the development libraries for the toolkit
2800 that you want to use (e.g. Gtk+) and re-run configure.])
2805 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2809 if test "${USE_X_TOOLKIT}" != "none"; then
2810 AC_MSG_CHECKING(X11 toolkit version)
2811 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2812 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2813 [[#if XtSpecificationRelease < 6
2816 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2817 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2818 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2819 AC_MSG_RESULT(6 or newer)
2820 AC_DEFINE(HAVE_X11XTR6, 1,
2821 [Define to 1 if you have the X11R6 or newer version of Xt.])
2822 LIBXTR6="-lSM -lICE"
2824 ## Use libw.a along with X11R6 Xt.
2825 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2828 AC_MSG_RESULT(before 6)
2831 dnl If using toolkit, check whether libXmu.a exists.
2832 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2834 if test x$HAVE_X11XTR6 = xyes; then
2835 OTHERLIBS='-lXt -lSM -lICE'
2839 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2840 if test "X$LIBS" != "X$OLDLIBS"; then
2841 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2844 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2850 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2851 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2852 if test -d /usr/include/openmotif; then
2853 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2854 emacs_cv_openmotif=yes
2855 case "$canonical" in
2856 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2857 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2860 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2863 emacs_cv_openmotif=no
2865 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2866 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2867 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2870 Motif version prior to 2.1.
2872 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2873 if test $emacs_cv_motif_version_2_1 = yes; then
2874 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2875 if test x$emacs_cv_openmotif = xyes; then
2876 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2879 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2880 # We put this in CFLAGS temporarily to precede other -I options
2881 # that might be in CFLAGS temporarily.
2882 # We put this in CPPFLAGS where it precedes the other -I options.
2883 OLD_CPPFLAGS=$CPPFLAGS
2885 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2886 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2887 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2889 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2890 if test $emacs_cv_lesstif = yes; then
2891 # Make sure this -I option remains in CPPFLAGS after it is set
2892 # back to REAL_CPPFLAGS.
2893 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2894 # have those other -I options anyway. Ultimately, having this
2895 # directory ultimately in CPPFLAGS will be enough.
2896 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2897 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2900 CPPFLAGS=$OLD_CPPFLAGS
2903 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2904 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2907 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2908 dnl using Motif or Xaw3d is available, and unless
2909 dnl --with-toolkit-scroll-bars=no was specified.
2911 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2912 [Define to 1 if we should use toolkit scroll bars.])dnl
2913 USE_TOOLKIT_SCROLL_BARS=no
2914 if test "${with_toolkit_scroll_bars}" != "no"; then
2915 if test "${USE_X_TOOLKIT}" != "none"; then
2916 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2917 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2919 USE_TOOLKIT_SCROLL_BARS=yes
2920 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2921 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2922 USE_TOOLKIT_SCROLL_BARS=yes
2924 elif test "${HAVE_GTK}" = "yes"; then
2925 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2926 USE_TOOLKIT_SCROLL_BARS=yes
2927 elif test "${HAVE_NS}" = "yes"; then
2928 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2929 USE_TOOLKIT_SCROLL_BARS=yes
2930 elif test "${HAVE_W32}" = "yes"; then
2931 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2932 USE_TOOLKIT_SCROLL_BARS=yes
2936 dnl See if XIM is available.
2937 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2938 #include <X11/Xlib.h>
2939 #include <X11/Xresource.h>]],
2940 [[XIMProc callback;]])],
2942 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2945 dnl '--with-xim' now controls only the initial value of use_xim at run time.
2947 if test "${with_xim}" != "no"; then
2948 AC_DEFINE(USE_XIM, 1,
2949 [Define to 1 if we should use XIM, if it is available.])
2953 if test "${HAVE_XIM}" != "no"; then
2955 if test "$GCC" = yes; then
2956 CFLAGS="$CFLAGS --pedantic-errors"
2958 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2959 #include <X11/Xlib.h>
2960 #include <X11/Xresource.h>]],
2966 XPointer *client_data;
2968 /* If we're not using GCC, it's probably not XFree86, and this is
2969 probably right, but we can't use something like --pedantic-errors. */
2970 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2971 char*, XIMProc, XPointer*);
2973 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2975 [emacs_cv_arg6_star=yes])
2976 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2977 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2978 either XPointer or XPointer*.])dnl
2979 if test "$emacs_cv_arg6_star" = yes; then
2980 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2982 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2987 ### Start of font-backend (under any platform) section.
2988 # (nothing here yet -- this is a placeholder)
2989 ### End of font-backend (under any platform) section.
2991 ### Start of font-backend (under X11) section.
2992 if test "${HAVE_X11}" = "yes"; then
2993 ## Use -lXft if available, unless '--with-xft=no'.
2995 if test "x${with_x}" = "xno"; then
2999 if test "$with_xft" != no; then
3000 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3001 with_xft=$HAVE_FONTCONFIG
3004 if test "x${with_xft}" != "xno"; then
3006 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3007 ## Because xftfont.c uses XRenderQueryExtension, we also
3008 ## need to link to -lXrender.
3010 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3011 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3012 OLD_CPPFLAGS="$CPPFLAGS"
3013 OLD_CFLAGS="$CFLAGS"
3015 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3016 CFLAGS="$CFLAGS $XFT_CFLAGS"
3017 XFT_LIBS="-lXrender $XFT_LIBS"
3018 LIBS="$XFT_LIBS $LIBS"
3019 AC_CHECK_HEADER(X11/Xft/Xft.h,
3020 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3021 [[#include <X11/X.h>]])
3023 if test "${HAVE_XFT}" = "yes"; then
3024 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3026 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3027 fi # "${HAVE_XFT}" = "yes"
3028 CPPFLAGS=$OLD_CPPFLAGS
3031 fi # "$HAVE_XFT" != no
3032 fi # "x${with_xft}" != "xno"
3034 ## We used to allow building with FreeType and without Xft.
3035 ## However, the ftx font backend driver is not in good shape.
3036 if test "$HAVE_XFT" != "yes"; then
3037 dnl For the "Does Emacs use" message at the end.
3041 dnl Strict linkers fail with
3042 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3043 dnl if -lfreetype is not specified.
3044 dnl The following is needed to set FREETYPE_LIBS.
3045 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3047 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3051 if test "${HAVE_FREETYPE}" = "yes"; then
3052 AC_DEFINE(HAVE_FREETYPE, 1,
3053 [Define to 1 if using the freetype and fontconfig libraries.])
3054 if test "${with_libotf}" != "no"; then
3055 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3056 if test "$HAVE_LIBOTF" = "yes"; then
3057 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3058 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3059 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3060 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3061 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3062 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3063 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3067 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3068 dnl Does the new font backend require it, or can it work without it?
3072 if test "${HAVE_LIBOTF}" = yes; then
3073 if test "${with_m17n_flt}" != "no"; then
3074 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3075 if test "$HAVE_M17N_FLT" = "yes"; then
3076 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3087 ### End of font-backend (under X11) section.
3089 AC_SUBST(FREETYPE_CFLAGS)
3090 AC_SUBST(FREETYPE_LIBS)
3091 AC_SUBST(FONTCONFIG_CFLAGS)
3092 AC_SUBST(FONTCONFIG_LIBS)
3093 AC_SUBST(LIBOTF_CFLAGS)
3094 AC_SUBST(LIBOTF_LIBS)
3095 AC_SUBST(M17N_FLT_CFLAGS)
3096 AC_SUBST(M17N_FLT_LIBS)
3099 if test "${HAVE_X11}" = "yes"; then
3100 if test "${with_cairo}" != "no"; then
3101 CAIRO_REQUIRED=1.12.0
3102 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3103 PKG_CHECK_MODULES(CAIRO, $CAIRO_MODULE, USE_CAIRO=yes, :)
3104 if test $USE_CAIRO = yes; then
3105 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3107 AC_MSG_ERROR([cairo requested but not found.])
3110 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3111 LIBS="$LIBS $CAIRO_LIBS"
3112 AC_SUBST(CAIRO_CFLAGS)
3113 AC_SUBST(CAIRO_LIBS)
3117 if test "${HAVE_X11}" = "yes"; then
3118 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3119 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3120 if test "${HAVE_XCB}" = "yes"; then
3121 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3122 if test "${HAVE_X11_XCB}" = "yes"; then
3123 AC_DEFINE(USE_XCB, 1,
3124 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3125 X11/XCB programming.])
3126 XCB_LIBS="-lX11-xcb -lxcb"
3132 ### Use -lXpm if available, unless '--with-xpm=no'.
3133 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3134 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3135 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3136 ### LDFLAGS) accordingly.
3139 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3140 if test "${with_xpm}" != "no"; then
3141 SAVE_CPPFLAGS="$CPPFLAGS"
3142 SAVE_LDFLAGS="$LDFLAGS"
3143 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3144 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3145 AC_CHECK_HEADER(X11/xpm.h,
3146 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3147 if test "${HAVE_XPM}" = "yes"; then
3148 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3149 AC_EGREP_CPP(no_return_alloc_pixels,
3150 [#include "X11/xpm.h"
3151 #ifndef XpmReturnAllocPixels
3152 no_return_alloc_pixels
3154 ], HAVE_XPM=no, HAVE_XPM=yes)
3156 if test "${HAVE_XPM}" = "yes"; then
3157 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3161 CPPFLAGS="$SAVE_CPPFLAGS"
3162 LDFLAGS="$SAVE_LDFLAGS"
3167 if test "${HAVE_XPM}" = "yes"; then
3168 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3173 if test "${HAVE_X11}" = "yes"; then
3174 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3175 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3177 if test "${with_xpm}" != "no"; then
3178 AC_CHECK_HEADER(X11/xpm.h,
3179 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3180 if test "${HAVE_XPM}" = "yes"; then
3181 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3182 AC_EGREP_CPP(no_return_alloc_pixels,
3183 [#include "X11/xpm.h"
3184 #ifndef XpmReturnAllocPixels
3185 no_return_alloc_pixels
3187 ], HAVE_XPM=no, HAVE_XPM=yes)
3189 if test "${HAVE_XPM}" = "yes"; then
3197 if test "${HAVE_XPM}" = "yes"; then
3198 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3200 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3201 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3206 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3207 ### slightly different requirements wrt image libraries (it doesn't
3208 ### use -lXpm because it loads the xpm shared library dynamically at
3210 if test "${opsys}" = "mingw32"; then
3211 if test "${with_xpm}" != "no"; then
3212 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3216 if test "${HAVE_XPM}" = "yes"; then
3217 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3223 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3226 if test "${with_jpeg}" != "no"; then
3227 AC_CACHE_CHECK([for jpeglib 6b or later],
3230 for emacs_cv_jpeglib in yes -ljpeg no; do
3231 case $emacs_cv_jpeglib in
3234 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3238 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3239 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3240 #include <jpeglib.h>
3242 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3243 struct jpeg_decompress_struct cinfo;
3246 jpeg_create_decompress (&cinfo);
3247 WARNMS (&cinfo, JWRN_JPEG_EOF);
3248 jpeg_destroy_decompress (&cinfo);
3250 [emacs_link_ok=yes],
3253 test $emacs_link_ok = yes && break
3255 if test "$emacs_cv_jpeglib" != no; then
3257 AC_DEFINE([HAVE_JPEG], 1,
3258 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3259 ### mingw32 doesn't use -ljpeg, since it loads the library
3260 ### dynamically when needed, and doesn't want a run-time
3261 ### dependency on the jpeglib DLL.
3262 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3263 && LIBJPEG=$emacs_cv_jpeglib
3270 if test "${with_zlib}" != "no"; then
3272 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3274 case $ac_cv_search_inflateEnd in
3275 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3278 if test "${HAVE_ZLIB}" = "yes"; then
3279 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3280 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3281 if test "${opsys}" = "mingw32"; then
3287 ### Dynamic modules support
3292 if test "${with_modules}" != "no"; then
3293 if test "$opsys" = "gnu-linux"; then
3295 MODULES_SUFFIX=".so"
3297 elif test "$opsys" = "cygwin"; then
3298 MODULES_SUFFIX=".dll"
3300 elif test "$opsys" = "darwin"; then
3301 MODULES_SUFFIX=".so"
3303 elif test "$opsys" = "mingw32"; then
3304 MODULES_SUFFIX=".dll"
3307 # BSD system have dlopen in the libc
3308 AC_CHECK_FUNC(dlopen, [MODULES_SUFFIX=".so"]
3309 [HAVE_MODULES=yes], [])
3312 if test "${HAVE_MODULES}" = no; then
3313 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3316 LIBS="$LIBS $LIBMODULES"
3317 AC_CHECK_FUNCS([dlfunc])
3322 if test "${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, "$MODULES_SUFFIX",
3326 [System extension for dynamic libraries])
3328 AC_SUBST(MODULES_OBJ)
3329 AC_SUBST(LIBMODULES)
3330 AC_CHECK_FUNCS(dladdr)
3332 ### Use -lpng if available, unless '--with-png=no'.
3336 if test "${NS_IMPL_COCOA}" = yes; then
3338 elif test "${with_png}" != no; then
3339 # mingw32 loads the library dynamically.
3340 if test "$opsys" = mingw32; then
3341 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3342 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3343 AC_MSG_CHECKING([for png])
3344 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3345 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3346 # libpng-config does not work; configure by hand.
3347 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3348 # in /usr/include/libpng.
3349 if test -r /usr/include/libpng/png.h &&
3350 test ! -r /usr/include/png.h; then
3351 png_cflags=-I/usr/include/libpng
3359 CFLAGS="$CFLAGS $png_cflags"
3360 LIBS="$png_libs -lz -lm $LIBS"
3362 [AC_LANG_PROGRAM([[#include <png.h>]],
3363 [[return !png_get_channels (0, 0);]])],
3365 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3367 # $LIBPNG requires explicit -lz in some cases.
3368 # We don't know what those cases are, exactly, so play it safe and
3369 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3370 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3371 LIBPNG="$LIBPNG -lz"
3375 AC_MSG_RESULT([$HAVE_PNG])
3378 if test $HAVE_PNG = yes; then
3379 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3382 CFLAGS="$CFLAGS $PNG_CFLAGS"
3383 AC_CHECK_DECL([png_longjmp],
3385 [AC_DEFINE([PNG_DEPSTRUCT], [],
3386 [Define to empty to suppress deprecation warnings when building
3387 with --enable-gcc-warnings and with libpng versions before 1.5,
3388 which lack png_longjmp.])],
3394 AC_SUBST(PNG_CFLAGS)
3396 ### Use -ltiff if available, unless '--with-tiff=no'.
3397 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3400 if test "${opsys}" = "mingw32"; then
3401 if test "${with_tiff}" != "no"; then
3402 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3404 if test "${HAVE_TIFF}" = "yes"; then
3405 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3407 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3408 if test "${with_tiff}" != "no"; then
3409 AC_CHECK_HEADER(tiffio.h,
3411 # At least one tiff package requires the jpeg library.
3412 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3413 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3416 if test "${HAVE_TIFF}" = "yes"; then
3417 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3418 dnl FIXME -lz -lm, as per libpng?
3424 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3425 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3428 if test "${opsys}" = "mingw32"; then
3429 if test "${with_gif}" != "no"; then
3430 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3432 if test "${HAVE_GIF}" = "yes"; then
3433 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3435 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3436 || test "${HAVE_W32}" = "yes"; then
3437 AC_CHECK_HEADER(gif_lib.h,
3438 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3439 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3440 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3441 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3443 if test "$HAVE_GIF" = yes; then
3445 elif test "$HAVE_GIF" = maybe; then
3446 # If gif_lib.h but no libgif, try libungif.
3447 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3448 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3451 if test "${HAVE_GIF}" = "yes"; then
3452 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3457 dnl Check for required libraries.
3458 if test "${HAVE_X11}" = "yes"; then
3461 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3462 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3463 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3464 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3465 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3466 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3467 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3468 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3469 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3470 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3472 if test "X${MISSING}" != X; then
3473 AC_MSG_ERROR([The following required libraries were not found:
3475 Maybe some development libraries/packages are missing?
3476 If you don't want to link with them give
3478 as options to configure])
3482 ### Use -lgpm if available, unless '--with-gpm=no'.
3485 if test "${with_gpm}" != "no"; then
3486 AC_CHECK_HEADER(gpm.h,
3487 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3489 if test "${HAVE_GPM}" = "yes"; then
3490 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3496 dnl Check for malloc/malloc.h on darwin
3497 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3500 ### Use NeXTstep API to implement GUI.
3501 if test "${HAVE_NS}" = "yes"; then
3502 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3503 if test "${NS_IMPL_COCOA}" = "yes"; then
3504 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3506 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3507 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3508 if test $NS_GNUSTEP_CONFIG != yes; then
3509 # See also .m.o rule in src/Makefile.in. */
3510 # FIXME: are all these flags really needed? Document here why. */
3511 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3512 ## Extra CFLAGS applied to src/*.m files.
3513 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3519 ### Use session management (-lSM -lICE) if available
3522 if test "${HAVE_X11}" = "yes"; then
3523 AC_CHECK_HEADER(X11/SM/SMlib.h,
3524 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3526 if test "${HAVE_X_SM}" = "yes"; then
3527 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3533 ### Use XRandr (-lXrandr) if available
3535 if test "${HAVE_X11}" = "yes"; then
3536 XRANDR_REQUIRED=1.2.2
3537 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3538 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3539 if test $HAVE_XRANDR = no; then
3540 # Test old way in case pkg-config doesn't have it (older machines).
3541 # Include Xrender.h by hand to work around bug in older Xrandr.h
3542 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3543 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3544 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3545 [], [AC_INCLUDES_DEFAULT
3546 #include <X11/extensions/Xrender.h>])
3547 if test $HAVE_XRANDR = yes; then
3548 XRANDR_LIBS=-lXrandr
3551 if test $HAVE_XRANDR = yes; then
3552 SAVE_CFLAGS="$CFLAGS"
3554 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3555 LIBS="$XRANDR_LIBS $LIBS"
3556 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3557 CFLAGS="$SAVE_CFLAGS"
3560 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3563 AC_SUBST(XRANDR_CFLAGS)
3564 AC_SUBST(XRANDR_LIBS)
3566 ### Use Xinerama (-lXinerama) if available
3568 if test "${HAVE_X11}" = "yes"; then
3569 XINERAMA_REQUIRED=1.0.2
3570 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3571 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3572 if test $HAVE_XINERAMA = no; then
3573 # Test old way in case pkg-config doesn't have it (older machines).
3574 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3575 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3576 if test $HAVE_XINERAMA = yes; then
3577 XINERAMA_LIBS=-lXinerama
3580 if test $HAVE_XINERAMA = yes; then
3581 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3584 AC_SUBST(XINERAMA_CFLAGS)
3585 AC_SUBST(XINERAMA_LIBS)
3587 ### Use Xfixes (-lXfixes) if available
3589 if test "${HAVE_X11}" = "yes"; then
3590 XFIXES_REQUIRED=4.0.0
3591 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3592 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3593 if test $HAVE_XFIXES = no; then
3594 # Test old way in case pkg-config doesn't have it (older machines).
3595 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3596 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3597 if test $HAVE_XFIXES = yes; then
3598 XFIXES_LIBS=-lXfixes
3601 if test $HAVE_XFIXES = yes; then
3602 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3605 AC_SUBST(XFIXES_CFLAGS)
3606 AC_SUBST(XFIXES_LIBS)
3608 ### Use libxml (-lxml2) if available
3609 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3611 if test "${with_xml2}" != "no"; then
3612 ### I'm not sure what the version number should be, so I just guessed.
3613 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3614 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3615 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3616 SAVE_CPPFLAGS="$CPPFLAGS"
3617 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3618 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3619 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3621 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3625 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3626 AC_CHECK_HEADER(libxml/HTMLparser.h,
3627 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3628 [#include <libxml/HTMLparser.h>])])
3629 CPPFLAGS="$SAVE_CPPFLAGS"
3630 if test "${HAVE_LIBXML2}" = "yes"; then
3631 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3632 LIBXML2_LIBS="-lxml2"
3635 if test "${HAVE_LIBXML2}" = "yes"; then
3636 if test "${opsys}" != "mingw32"; then
3637 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3642 if test "${HAVE_LIBXML2}" = "yes"; then
3643 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3650 AC_SUBST(LIBXML2_LIBS)
3651 AC_SUBST(LIBXML2_CFLAGS)
3653 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3654 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3655 if test "${opsys}" = "mingw32"; then
3656 emacs_cv_netdb_declares_h_errno=yes
3658 AC_CACHE_CHECK(whether netdb declares h_errno,
3659 emacs_cv_netdb_declares_h_errno,
3660 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3661 [[return h_errno;]])],
3662 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3663 if test $emacs_cv_netdb_declares_h_errno = yes; then
3664 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3667 # Check for mail-locking functions in a "mail" library. Probably this should
3668 # have the same check as for liblockfile below.
3669 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3670 if test $have_mail = yes; then
3672 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3675 LIBS="$LIBS_MAIL $LIBS"
3676 AC_CHECK_FUNCS(touchlock)
3681 dnl Debian, at least:
3682 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3683 if test $have_lockfile = yes; then
3684 LIBS_MAIL=-llockfile
3685 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3687 # If we have the shared liblockfile, assume we must use it for mail
3688 # locking (e.g. Debian). If we couldn't link against liblockfile
3689 # (no liblockfile.a installed), ensure that we don't need to.
3690 dnl This works for files generally, not just executables.
3691 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3692 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3693 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3694 if test $ac_cv_prog_liblockfile = yes; then
3695 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3696 This probably means that movemail could lose mail.
3697 There may be a 'development' package to install containing liblockfile.])
3700 AC_CHECK_HEADERS_ONCE(maillock.h)
3703 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3704 ## interlock access to the mail spool. The alternative is a lock file named
3705 ## /usr/spool/mail/$USER.lock.
3708 aix4-2) mail_lock="lockf" ;;
3710 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3712 ## On GNU/Linux systems, both methods are used by various mail programs.
3713 ## I assume most people are using newer mailers that have heard of flock.
3714 ## Change this if you need to.
3715 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3716 ## configure gets the right answers, and that means *NOT* using flock.
3717 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3718 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3719 ## Debian maintainer hasn't provided a clean fix for Emacs.
3720 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3721 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3722 ## correct logic. -- fx
3723 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3724 ## liblockfile is a Free Software replacement for libmail, used on
3725 ## Debian systems and elsewhere. -rfr.
3728 if test $have_mail = yes || test $have_lockfile = yes; then
3729 test $ac_cv_header_maillock_h = yes && mail_lock=no
3734 mail_lock="none-needed" ;;
3738 case "$mail_lock" in
3739 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3741 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3745 *) BLESSMAIL_TARGET="need-blessmail" ;;
3747 AC_SUBST(BLESSMAIL_TARGET)
3750 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3751 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3752 getrusage get_current_dir_name \
3753 lrand48 random rint \
3754 select getpagesize setlocale newlocale \
3755 getrlimit setrlimit shutdown getaddrinfo \
3756 pthread_sigmask strsignal setitimer \
3757 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3759 getpwent endpwent getgrent endgrent \
3760 cfmakeraw cfsetspeed copysign __executable_start log2)
3763 dnl No need to check for aligned_alloc and posix_memalign if using
3764 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3765 dnl Don't use these functions on Darwin as they are incompatible with
3767 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3768 && test "$opsys" != darwin; then
3769 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3772 dnl Cannot use AC_CHECK_FUNCS
3773 AC_CACHE_CHECK([for __builtin_unwind_init],
3774 emacs_cv_func___builtin_unwind_init,
3775 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3776 emacs_cv_func___builtin_unwind_init=yes,
3777 emacs_cv_func___builtin_unwind_init=no)])
3778 if test $emacs_cv_func___builtin_unwind_init = yes; then
3779 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3780 [Define to 1 if you have the '__builtin_unwind_init' function.])
3783 AC_CHECK_HEADERS_ONCE(sys/un.h)
3788 AC_CHECK_FUNCS(grantpt)
3790 # PTY-related GNU extensions.
3791 AC_CHECK_FUNCS(getpt posix_openpt)
3793 # Check this now, so that we will NOT find the above functions in ncurses.
3794 # That is because we have not set up to link ncurses in lib-src.
3795 # It's better to believe a function is not available
3796 # than to expect to find it in ncurses.
3797 # Also we need tputs and friends to be able to build at all.
3798 AC_MSG_CHECKING([for library containing tputs])
3799 # Run a test program that contains a call to tputs, a call that is
3800 # never executed. This tests whether a pre-'main' dynamic linker
3801 # works with the library. It's too much trouble to actually call
3802 # tputs in the test program, due to portability hassles. When
3803 # cross-compiling, assume the test program will run if it links.
3804 AC_DEFUN([tputs_link_source], [
3806 [[extern void tputs (const char *, int, int (*)(int));
3807 int main (int argc, char **argv)
3810 tputs (argv[0], 0, 0);
3814 if test "${opsys}" = "mingw32"; then
3817 # Maybe curses should be tried earlier?
3818 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3819 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3821 if test -z "$tputs_library"; then
3825 LIBS_TERMCAP=-l$tputs_library
3827 LIBS="$LIBS_TERMCAP $LIBS"
3829 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3830 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3832 if test "X$msg" != Xno; then
3837 AC_MSG_RESULT([$msg])
3838 if test "X$msg" = Xno; then
3839 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3840 The following libraries were tried (in order):
3841 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3842 Please try installing whichever of these libraries is most appropriate
3843 for your system, together with its header files.
3844 For example, a libncurses-dev(el) or similar package.])
3847 ## Use termcap instead of terminfo?
3848 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3850 ## FIXME? In the cases below where we unconditionally set
3851 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3852 ## if that was found above to have tputs.
3853 ## Should we use the gnu* logic everywhere?
3855 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3856 ## The ncurses library has been moved out of the System framework in
3857 ## Mac OS X 10.2. So if configure detects it, set the command-line
3858 ## option to use it.
3859 darwin) LIBS_TERMCAP="-lncurses" ;;
3861 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3864 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3865 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3866 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3867 [[#if __FreeBSD_version < 400000
3870 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3872 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3874 if test $emacs_cv_freebsd_terminfo = yes; then
3875 LIBS_TERMCAP="-lncurses"
3878 LIBS_TERMCAP="-ltermcap"
3888 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3890 LIBS_TERMCAP="-ltermcap"
3894 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3896 ## hpux: Make sure we get select from libc rather than from libcurses
3897 ## because libcurses on HPUX 10.10 has a broken version of select.
3898 ## We used to use -lc -lcurses, but this may be cleaner.
3899 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3900 # set that way, now it uses the default). Isn't this a contradiction?
3901 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3905 TERMCAP_OBJ=tparam.o
3906 if test $TERMINFO = yes; then
3907 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3908 TERMCAP_OBJ=terminfo.o
3910 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3911 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3913 AC_SUBST(LIBS_TERMCAP)
3914 AC_SUBST(TERMCAP_OBJ)
3916 # GNU/Linux-specific timer functions.
3917 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3919 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3921 [[timerfd_create (CLOCK_REALTIME,
3922 TFD_CLOEXEC | TFD_NONBLOCK);
3923 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3924 [emacs_cv_have_timerfd=yes],
3925 [emacs_cv_have_timerfd=no])])
3926 if test "$emacs_cv_have_timerfd" = yes; then
3927 AC_DEFINE([HAVE_TIMERFD], 1,
3928 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3931 # Alternate stack for signal handlers.
3932 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3933 [emacs_cv_alternate_stack],
3935 [AC_LANG_PROGRAM([[#include <signal.h>
3938 struct sigaction sa;
3939 ss.ss_sp = malloc (SIGSTKSZ);
3940 ss.ss_size = SIGSTKSZ;
3941 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3942 sigaltstack (&ss, 0);
3943 sigaction (SIGSEGV, &sa, 0);]])],
3944 [emacs_cv_alternate_stack=yes],
3945 [emacs_cv_alternate_stack=no])])
3947 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3948 # On Darwin, res_init appears not to be useful: see bug#562 and
3949 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3952 if test $opsys != darwin; then
3954 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3955 #include <arpa/nameser.h>
3956 #include <resolv.h>]],
3957 [[return res_init();]])],
3958 have_res_init=yes, have_res_init=no)
3959 if test "$have_res_init" = no; then
3961 LIBS="$LIBS -lresolv"
3962 AC_MSG_CHECKING(for res_init with -lresolv)
3963 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3964 #include <arpa/nameser.h>
3965 #include <resolv.h>]],
3966 [[return res_init();]])],
3967 have_res_init=yes, have_res_init=no)
3968 AC_MSG_RESULT($have_res_init)
3969 if test "$have_res_init" = yes ; then
3975 if test "$have_res_init" = yes; then
3976 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3980 # Do we need the Hesiod library to provide the support routines?
3981 dnl FIXME? Should we be skipping this on Darwin too?
3983 if test "$with_hesiod" != no ; then
3984 # Don't set $LIBS here -- see comments above. FIXME which comments?
3985 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3986 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3987 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3988 if test "$resolv" = yes ; then
3993 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3994 hesiod=yes, :, $RESOLVLIB)])
3996 if test x"$hesiod" = xyes; then
4002 # Do we need libresolv (due to res_init or Hesiod)?
4003 if test "$resolv" = yes && test $opsys != darwin; then
4010 # These tell us which Kerberos-related libraries to use.
4017 if test "${with_kerberos}" != no; then
4019 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4020 if test $have_com_err = yes; then
4021 COM_ERRLIB=-lcom_err
4022 LIBS="$COM_ERRLIB $LIBS"
4024 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4025 if test $have_crypto = yes; then
4027 LIBS="$CRYPTOLIB $LIBS"
4029 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4030 if test $have_k5crypto = yes; then
4031 CRYPTOLIB=-lk5crypto
4032 LIBS="$CRYPTOLIB $LIBS"
4034 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4035 if test $have_krb5=yes; then
4037 LIBS="$KRB5LIB $LIBS"
4039 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4040 if test "${with_kerberos5}" = no; then
4041 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4042 if test $have_des425 = yes; then
4044 LIBS="$DESLIB $LIBS"
4046 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4047 if test $have_des = yes; then
4049 LIBS="$DESLIB $LIBS"
4052 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4053 if test $have_krb4 = yes; then
4055 LIBS="$KRB4LIB $LIBS"
4057 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4058 if test $have_krb = yes; then
4060 LIBS="$KRB4LIB $LIBS"
4065 if test "${with_kerberos5}" != no; then
4066 AC_CHECK_HEADERS(krb5.h,
4067 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4068 [#include <krb5.h>])])
4070 AC_CHECK_HEADERS(krb.h,,
4071 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4072 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4074 AC_CHECK_HEADERS(com_err.h)
4078 AC_SUBST(COM_ERRLIB)
4084 AC_CHECK_HEADERS(valgrind/valgrind.h)
4086 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4088 AC_CHECK_FUNCS_ONCE(tzset)
4091 AC_CHECK_FUNC(socket, , ok_so_far=no)
4092 if test $ok_so_far = yes; then
4093 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4095 if test $ok_so_far = yes; then
4096 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4098 if test $ok_so_far = yes; then
4099 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4100 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4101 [Define to 1 if you have inet sockets.])
4106 AC_CHECK_FUNCS(snprintf)
4108 dnl Check for glib. This differs from other library checks in that
4109 dnl Emacs need not link to glib unless some other library is already
4110 dnl linking to glib. Although glib provides no facilities that Emacs
4111 dnl needs for its own purposes, when glib is present Emacs needs to
4112 dnl use primitives like g_main_context_query to avoid clashing with
4113 dnl glib at a low level.
4115 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4119 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4120 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4121 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS $CAIRO_CFLAGS"
4122 LIBS="$LIBS $GFILENOTIFY_LIBS $CAIRO_LIBS"
4123 AC_MSG_CHECKING([whether GLib is linked in])
4124 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4127 [[g_print ("Hello world");]])],
4130 AC_MSG_RESULT([$links_glib])
4131 if test "${links_glib}" = "yes"; then
4132 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4133 if test "$HAVE_NS" = no;then
4141 dnl Adapted from Haible's version.
4142 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4143 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4144 [[char* cs = nl_langinfo(CODESET);]])],
4145 emacs_cv_langinfo_codeset=yes,
4146 emacs_cv_langinfo_codeset=no)
4148 if test $emacs_cv_langinfo_codeset = yes; then
4149 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4150 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4155 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4156 dnl how the tty code is related to POSIX and/or other versions of termios.
4157 dnl The following looks like a useful start.
4159 dnl AC_SYS_POSIX_TERMIOS
4160 dnl if test $ac_cv_sys_posix_termios = yes; then
4161 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4162 dnl and macros for terminal control.])
4163 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4166 dnl Turned on June 1996 supposing nobody will mind it.
4167 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4168 if test "${opsys}" != "mingw32"; then
4169 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4170 in the full name stands for the login id.])
4173 dnl Everybody supports this, except MS.
4174 dnl Seems like the kind of thing we should be testing for, though.
4175 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4176 if test "${opsys}" != "mingw32"; then
4177 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4180 dnl Everybody supports this, except MS-DOS.
4181 dnl Seems like the kind of thing we should be testing for, though.
4182 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4183 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4184 4.2-compatible sockets.])
4186 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4188 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4189 a null file, or a data sink.])
4190 if test "${opsys}" = "mingw32"; then
4191 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4193 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4196 if test "${opsys}" = "mingw32"; then
4201 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4202 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4203 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4204 dnl decides that a command-line argument to be passed to a MinGW program
4205 dnl is a PATH-style list of directories. But that heuristics plays it
4206 dnl safe, and only does the replacement when it is _absolutely_ sure it
4207 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4208 dnl which breaks in-tree builds. So we do this manually instead.
4209 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4210 dnl be computed as ':' in MSYS Bash.
4213 dnl Everybody supports this, except MS-DOS.
4214 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4216 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4219 AC_DEFINE(DIRECTORY_SEP, ['/'],
4220 [Character that separates directories in a file name.])
4222 if test "${opsys}" = "mingw32"; then
4223 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4224 [Returns true if character is a device separator.])
4226 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4227 [Returns true if character is a directory separator.])
4229 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4230 [Returns true if character is any form of separator.])
4232 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4233 [Returns true if character is a device separator.])
4235 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4236 [Returns true if character is a directory separator.])
4238 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4239 [Returns true if character is any form of separator.])
4242 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4246 dnl Unfortunately without libXmu we cannot support EditRes.
4247 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4248 AC_DEFINE(NO_EDITRES, 1)
4253 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4254 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4255 AC_DEFINE(NO_EDITRES, 1)
4261 irix6-5 | sol2* | unixware )
4262 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4263 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4264 dnl need the constant to dimension an array. So wire in the appropriate
4266 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4270 emacs_broken_SIGIO=no
4273 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4274 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4275 hpux* | irix6-5 | nacl | openbsd | sol2* | unixware )
4276 emacs_broken_SIGIO=yes
4280 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4281 dnl the way this system works, libc functions that return malloced
4282 dnl memory use the libc malloc implementation. Calling xfree or
4283 dnl xrealloc on the results of such functions results in a crash.
4285 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4286 dnl but that does not currently work on this system.
4288 dnl It is possible to completely override the malloc implementation on
4289 dnl AIX, but that involves putting the malloc functions in a shared
4290 dnl library and setting the MALLOCTYPE environment variable to point to
4291 dnl that shared library.
4293 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4294 dnl to avoid a crash just use the Emacs implementation for that function.
4296 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4297 dnl of this file, so that we do not check for get_current_dir_name
4298 dnl on AIX. But that might be fragile if something else ends
4299 dnl up testing for get_current_dir_name as a dependency.
4300 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4301 get_current_dir_name should not be used.])
4305 dnl Circumvent a bug in FreeBSD. In the following sequence of
4306 dnl writes/reads on a PTY, read(2) returns bogus data:
4308 dnl write(2) 1022 bytes
4309 dnl write(2) 954 bytes, get EAGAIN
4310 dnl read(2) 1024 bytes in process_read_output
4311 dnl read(2) 11 bytes in process_read_output
4313 dnl That is, read(2) returns more bytes than have ever been written
4314 dnl successfully. The 1033 bytes read are the 1022 bytes written
4315 dnl successfully after processing (for example with CRs added if the
4316 dnl terminal is set up that way which it is here). The same bytes will
4317 dnl be seen again in a later read(2), without the CRs.
4318 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4319 work around an issue when reading from a PTY.])
4325 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4326 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4331 darwin | dragonfly | freebsd | netbsd | openbsd )
4332 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4333 close a pty to make it a controlling terminal (it is already a
4334 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4338 dnl FIXME Surely we can test for this rather than hard-code it.
4340 netbsd | openbsd) sound_device="/dev/audio" ;;
4341 *) sound_device="/dev/dsp" ;;
4345 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4346 [Name of the default sound device.])
4349 dnl Emacs can read input using SIGIO and buffering characters itself,
4350 dnl or using CBREAK mode and making C-g cause SIGINT.
4351 dnl The choice is controlled by the variable interrupt_input.
4353 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4355 dnl Emacs uses the presence of the USABLE_SIGIO macro
4356 dnl to indicate whether or not signal-driven I/O is possible. It uses
4357 dnl INTERRUPT_INPUT to decide whether to use it by default.
4359 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4360 dnl CBREAK mode has two disadvantages
4361 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4362 dnl I hear that in system V this problem does not exist.
4363 dnl 2) Control-G causes output to be discarded.
4364 dnl I do not know whether this can be fixed in system V.
4366 dnl Another method of doing input is planned but not implemented.
4367 dnl It would have Emacs fork off a separate process
4368 dnl to read the input and send it to the true Emacs process
4371 darwin | gnu-linux | gnu-kfreebsd )
4372 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4377 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4378 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4379 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4380 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4381 dnl taking float or double parameters.
4383 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4384 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4385 file defines 'NeedWidePrototypes' as 'NO'.])
4390 dnl Used in process.c, this must be a loop, even if it only runs once.
4391 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4392 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4393 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4394 dnl trying suffixes 0-16.
4395 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4396 first PTY, if PTYs are supported.])
4397 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4398 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4399 end of a PTY, if non-standard.])
4400 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4401 end of a PTY, if non-standard.])
4405 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4406 dnl You allocate a pty by opening /dev/ptc to get the master side.
4407 dnl To get the name of the slave side, you just ttyname() the master side.
4408 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4409 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4413 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4414 dnl multi-line AC_DEFINEs are hard. :(
4415 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)])
4416 AC_DEFINE(PTY_NAME_SPRINTF, [])
4417 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4421 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4424 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4426 if test "x$ac_cv_func_grantpt" = xyes; then
4427 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4428 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4429 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4430 dnl to prevent sigchld_handler from intercepting the child's death.
4431 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); }])
4432 dnl if HAVE_POSIX_OPENPT
4433 if test "x$ac_cv_func_posix_openpt" = xyes; then
4434 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4435 AC_DEFINE(PTY_NAME_SPRINTF, [])
4437 elif test "x$ac_cv_func_getpt" = xyes; then
4438 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4439 AC_DEFINE(PTY_NAME_SPRINTF, [])
4441 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4444 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4449 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4450 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4451 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4455 dnl It looks like this cannot be right, because it is not a loop.
4456 dnl However, process.c actually does this:
4462 dnl which presumably makes it OK, since irix == sgi (?).
4463 dnl FIXME it seems like this special treatment is unnecessary?
4464 dnl Why can't irix use a single-trip loop like eg cygwin?
4465 AC_DEFINE(PTY_ITERATION, [])
4466 dnl Not used, because PTY_ITERATION is defined.
4467 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4468 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); }])
4469 dnl No need to get the pty name at all.
4470 AC_DEFINE(PTY_NAME_SPRINTF, [])
4471 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4472 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4476 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4477 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4478 dnl from intercepting that death. If any child but grantpt's should die
4479 dnl within, it should be caught after sigrelse(2).
4480 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4481 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); }])
4485 dnl Comments are as per sol2*.
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) 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); }])
4494 dnl This change means that we don't loop through allocate_pty too
4495 dnl many times in the (rare) event of a failure.
4496 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4497 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4498 dnl Push various streams modules onto a PTY channel. Used in process.c.
4499 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.])
4504 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4505 "typing" a signal character on the pty.])
4508 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4509 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4510 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4511 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4514 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4515 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4516 gnu-linux | gnu-kfreebsd )
4518 AC_MSG_CHECKING([for signals via characters])
4519 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4520 #include <linux/version.h>
4521 #if LINUX_VERSION_CODE < 0x20400
4522 # error "Linux version too old"
4524 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4526 AC_MSG_RESULT([$emacs_signals_via_chars])
4527 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4532 AH_TEMPLATE(TAB3, [Undocumented.])
4535 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4537 gnu | dragonfly | freebsd | netbsd | openbsd )
4538 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4539 AC_DEFINE(TAB3, OXTABS)
4542 gnu-linux | gnu-kfreebsd )
4543 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4547 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4548 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4549 [Mark a secondary stack, like the register stack on the ia64.]), [])
4553 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4554 run_time_remap; for HPUX.])
4559 dnl This won't be used automatically yet. We also need to know, at least,
4560 dnl that the stack is continuous.
4561 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4562 registers relevant for conservative garbage collection in the jmp_buf.])
4566 dnl Not all the architectures are tested, but there are Debian packages
4567 dnl for SCM and/or Guile on them, so the technique must work. See also
4568 dnl comments in alloc.c concerning setjmp and gcc.
4569 dnl Fixme: it's probably safe to just use the GCC conditional below.
4570 gnu-linux | gnu-kfreebsd )
4571 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4572 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4573 || defined __alpha__ || defined __mips__ || defined __s390__ \
4574 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4575 || defined __ia64__ || defined __sh__
4578 # error "setjmp not known to work on this arch"
4580 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4585 if test x$GCC = xyes; then
4586 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4587 AC_DEFINE(GC_SETJMP_WORKS, 1)
4590 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4591 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4592 AC_DEFINE(GC_SETJMP_WORKS, 1)
4597 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4598 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4601 [[#include <setjmp.h>
4603 # define _longjmp longjmp
4608 _longjmp (j, 1);]])],
4609 [emacs_cv_func__setjmp=yes],
4610 [emacs_cv_func__setjmp=no])])
4611 if test $emacs_cv_func__setjmp = yes; then
4612 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4615 # We need to preserve signal mask to handle C stack overflows.
4616 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4619 [[#include <setjmp.h>
4622 if (! sigsetjmp (j, 1))
4623 siglongjmp (j, 1);]])],
4624 [emacs_cv_func_sigsetjmp=yes],
4625 [emacs_cv_func_sigsetjmp=no])])
4626 if test $emacs_cv_func_sigsetjmp = yes; then
4627 AC_DEFINE([HAVE_SIGSETJMP], 1,
4628 [Define to 1 if sigsetjmp and siglongjmp work.])
4631 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4632 yes,yes,* | *,*,mingw32)
4633 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4634 [Define to 1 if C stack overflow can be handled in some cases.]);;
4639 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4640 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4641 dnl and this is all we need.
4642 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4649 dnl Used in xfaces.c.
4650 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4651 some systems, where it requires time.h.])
4656 dnl Define symbols to identify the version of Unix this is.
4657 dnl Define all the symbols that apply correctly.
4658 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4659 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4660 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4661 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4666 dnl This symbol should be defined on AIX Version 3 ???????
4667 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4669 # error "_AIX not defined"
4671 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4675 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4679 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4680 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4681 dnl distinguish OS X from pure Darwin.
4682 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4685 gnu-linux | gnu-kfreebsd )
4687 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4692 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4697 AC_DEFINE(USG5_4, [])
4698 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4702 AC_DEFINE(DOS_NT, [])
4703 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4704 if test "x$ac_enable_checking" != "x" ; then
4705 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4711 AC_DEFINE(USG5_4, [])
4712 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4717 AC_DEFINE(USG5_4, [])
4721 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4724 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4725 emacs_cv_usable_FIONREAD=no
4729 emacs_cv_usable_FIONREAD=yes
4734 [AC_LANG_PROGRAM([[#include <sys/types.h>
4735 #include <sys/ioctl.h>
4737 # include <sys/filio.h>
4740 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4741 [emacs_cv_usable_FIONREAD=yes],
4742 [emacs_cv_usable_FIONREAD=no])
4745 if test $emacs_cv_usable_FIONREAD = yes; then
4746 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4748 if test $emacs_broken_SIGIO = no; then
4749 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4751 [AC_LANG_PROGRAM([[#include <fcntl.h>
4754 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4755 [emacs_cv_usable_SIGIO=yes],
4756 [emacs_cv_usable_SIGIO=no])],
4757 [emacs_cv_usable_SIGIO=yes],
4758 [emacs_cv_usable_SIGIO=no])
4759 if test $emacs_cv_usable_SIGIO = yes; then
4760 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4767 dnl It works to open the pty's tty in the parent (Emacs), then
4768 dnl close and reopen it in the child.
4769 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4770 works to open a pty's tty in the parent process, then close and
4771 reopen it in the child.])
4775 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4776 use VSUSP instead of VSWTCH.])
4780 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4785 # Set up the CFLAGS for real compilation, so we can substitute it.
4786 CFLAGS="$REAL_CFLAGS"
4787 CPPFLAGS="$REAL_CPPFLAGS"
4790 ## Hack to detect a buggy GCC version.
4791 if test "$GCC" = yes && \
4792 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4794 *-fno-optimize-sibling-calls*) ;;
4796 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4800 version=$PACKAGE_VERSION
4802 copyright="Copyright (C) 2016 Free Software Foundation, Inc."
4803 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4804 [Short copyright string for this version of Emacs.])
4807 ### Specify what sort of things we'll be editing into Makefile and config.h.
4808 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4810 AC_SUBST(configuration)
4815 AC_SUBST(exec_prefix)
4818 AC_SUBST(sharedstatedir)
4819 AC_SUBST(libexecdir)
4823 AC_SUBST(standardlisppath)
4824 AC_SUBST(locallisppath)
4826 AC_SUBST(x_default_search_path)
4828 AC_SUBST(archlibdir)
4834 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4835 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4836 ## end of LIBX_BASE, but nothing ever set it.
4837 AC_SUBST(LD_SWITCH_X_SITE)
4838 AC_SUBST(C_SWITCH_X_SITE)
4839 AC_SUBST(GNUSTEP_CFLAGS)
4841 ## Used in lwlib/Makefile.in.
4842 AC_SUBST(X_TOOLKIT_TYPE)
4844 AC_SUBST(ns_appbindir)
4845 AC_SUBST(ns_appresdir)
4847 AC_SUBST(GNU_OBJC_CFLAGS)
4848 AC_SUBST(OTHER_FILES)
4850 if test -n "${term_header}"; then
4851 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4852 [Define to the header for the built-in window system.])
4855 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4856 [Define to the canonical Emacs configuration name.])
4857 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4858 [Define to the options passed to configure.])
4859 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4860 define this to include extra configuration information.])
4864 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4871 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4872 AC_DEFINE(HAVE_X_WINDOWS, 1,
4873 [Define to 1 if you want to use the X window system.])
4875 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4877 if test "$USE_CAIRO" = "yes"; then
4878 FONT_OBJ="ftfont.o ftcrfont.o"
4879 elif test "$HAVE_XFT" = "yes"; then
4880 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4881 elif test "$HAVE_FREETYPE" = "yes"; then
4882 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4892 if test "${USE_X_TOOLKIT}" != "none" ; then
4894 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4895 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4896 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4897 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4898 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4902 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4903 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4907 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4908 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4909 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4913 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4914 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4917 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4920 AC_SUBST(WIDGET_OBJ)
4923 case "$USE_X_TOOLKIT" in
4924 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4925 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4926 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4928 AC_SUBST(TOOLKIT_LIBW)
4930 if test "${opsys}" != "mingw32"; then
4931 if test "$USE_X_TOOLKIT" = "none"; then
4932 LIBXT_OTHER="\$(LIBXSM)"
4934 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4937 AC_SUBST(LIBXT_OTHER)
4939 if test "${HAVE_X11}" = "yes" ; then
4940 AC_DEFINE(HAVE_X11, 1,
4941 [Define to 1 if you want to use version 11 of X windows.])
4942 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4946 AC_SUBST(LIBX_OTHER)
4948 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4950 elif test "$USE_X_TOOLKIT" = none; then
4951 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4953 LIBXMENU='$(lwlibdir)/liblw.a'
4957 AC_CACHE_CHECK([for struct alignment],
4958 [emacs_cv_struct_alignment],
4960 [AC_LANG_PROGRAM([[#include <stddef.h>
4961 struct __attribute__ ((aligned (8))) s { char c; };
4962 struct t { char c; struct s s; };
4963 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
4965 [emacs_cv_struct_alignment=yes],
4966 [emacs_cv_struct_alignment=no])])
4967 if test "$emacs_cv_struct_alignment" = yes; then
4968 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
4969 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
4970 structure to an N-byte boundary.])
4973 if test "${GNU_MALLOC}" = "yes" ; then
4974 AC_DEFINE(GNU_MALLOC, 1,
4975 [Define to 1 if you want to use the GNU memory allocator.])
4979 if test "${REL_ALLOC}" = "yes" ; then
4980 AC_DEFINE(REL_ALLOC, 1,
4981 [Define REL_ALLOC if you want to use the relocating allocator for
4984 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4986 AC_SUBST(RALLOC_OBJ)
4988 if test "$opsys" = "cygwin"; then
4989 CYGWIN_OBJ="sheap.o cygw32.o"
4990 ## Cygwin differs because of its unexec().
4992 POST_ALLOC_OBJ=lastfile.o
4993 elif test "$opsys" = "mingw32"; then
4996 POST_ALLOC_OBJ=lastfile.o
4999 PRE_ALLOC_OBJ=lastfile.o
5002 AC_SUBST(CYGWIN_OBJ)
5003 AC_SUBST(PRE_ALLOC_OBJ)
5004 AC_SUBST(POST_ALLOC_OBJ)
5006 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5007 dnl verbatim defined above. The tricky name is apropos, as this hack
5008 dnl makes Fortify go sour!
5009 AH_VERBATIM([FORTIFY_SOUR],
5010 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5011 The workaround disables some useful run-time checking, so it
5012 should be conditional to the platforms with the performance bug.
5013 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5014 #if defined __APPLE__ && defined __GNUC__
5015 # ifndef _DONT_USE_CTYPE_INLINE_
5016 # define _DONT_USE_CTYPE_INLINE_
5018 # ifndef _FORTIFY_SOURCE
5019 # define _FORTIFY_SOURCE 0
5024 # If user asks to omit features, disable optional features that gnulib
5025 # might otherwise enable.
5026 if test "$with_features" = no && test "$enable_acl" != yes; then
5030 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5031 # it temporarily reverts them to their pre-pkg-config values,
5032 # because gnulib needs to work with both src (which uses the
5033 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5034 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5035 # and it therefore needs to run in an environment where LIBS does not
5036 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5037 # for some package unrelated to lib-src.
5040 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5041 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5042 gl_ASSERT_NO_GNULIB_POSIXCHECK
5043 gl_ASSERT_NO_GNULIB_TESTS
5048 if test "${opsys}" = "mingw32"; then
5049 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5050 # Remove unneeded switches from the value of CC that goes to Makefiles
5051 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5055 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5057 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5060 ## The -headerpad option tells ld (see man page) to leave room at the
5061 ## end of the header for adding load commands. Needed for dumping.
5062 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5063 ## architecture (where they are 78 bytes each). The actual number of
5064 ## load commands added is not consistent but normally ranges from
5065 ## about 14 to about 34. Setting it high gets us plenty of slop and
5066 ## only costs about 1.5K of wasted binary space.
5067 headerpad_extra=1000
5068 if test "$HAVE_NS" = "yes"; then
5069 libs_nsgui="-framework AppKit"
5070 if test "$NS_IMPL_COCOA" = "yes"; then
5071 libs_nsgui="$libs_nsgui -framework IOKit"
5076 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5078 ## This is here because src/Makefile.in did some extra fiddling around
5079 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5080 ## LD_SWITCH_SYSTEM_TEMACS instead,
5081 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5082 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5085 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5086 ## find X at run-time.
5087 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5088 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5089 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5090 ## had different values in configure (in ac_link) and src/Makefile.in.
5091 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5092 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5095 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5096 case "$canonical" in
5097 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5098 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5102 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5105 # -nopie fixes a temacs segfault on Gentoo, OpenBSD, and other systems
5106 # with "hardened" GCC configurations for some reason (Bug#18784).
5107 # We don't know why -nopie works, but not segfaulting is better than
5108 # segfaulting. Use ac_c_werror_flag=yes when trying -nopie, otherwise
5109 # clang keeps warning that it does not understand -nopie, and pre-4.6
5110 # GCC has a similar problem (Bug#20338).
5111 AC_CACHE_CHECK([whether $CC accepts -nopie],
5112 [emacs_cv_prog_cc_nopie],
5113 [emacs_save_c_werror_flag=$ac_c_werror_flag
5114 emacs_save_LDFLAGS=$LDFLAGS
5115 ac_c_werror_flag=yes
5116 LDFLAGS="$LDFLAGS -nopie"
5117 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
5118 [emacs_cv_prog_cc_nopie=yes],
5119 [emacs_cv_prog_cc_nopie=no])
5120 ac_c_werror_flag=$emacs_save_c_werror_flag
5121 LDFLAGS=$emacs_save_LDFLAGS])
5122 if test "$emacs_cv_prog_cc_nopie" = yes; then
5123 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie"
5126 if test x$ac_enable_profiling != x ; then
5128 *freebsd | gnu-linux) ;;
5129 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5133 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5135 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5137 ## Common for all window systems
5138 if test "$window_system" != "none"; then
5139 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5140 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5141 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5144 AC_SUBST(WINDOW_SYSTEM_OBJ)
5146 AH_TOP([/* GNU Emacs site configuration template file.
5148 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2016
5149 Free Software Foundation, Inc.
5151 This file is part of GNU Emacs.
5153 GNU Emacs is free software: you can redistribute it and/or modify
5154 it under the terms of the GNU General Public License as published by
5155 the Free Software Foundation, either version 3 of the License, or
5156 (at your option) any later version.
5158 GNU Emacs is distributed in the hope that it will be useful,
5159 but WITHOUT ANY WARRANTY; without even the implied warranty of
5160 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5161 GNU General Public License for more details.
5163 You should have received a copy of the GNU General Public License
5164 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5167 /* No code in Emacs #includes config.h twice, but some bits of code
5168 intended to work with other packages as well (like gmalloc.c)
5169 think they can include it as many times as they like. */
5170 #ifndef EMACS_CONFIG_H
5171 #define EMACS_CONFIG_H
5174 AH_BOTTOM([#include <conf_post.h>
5176 #endif /* EMACS_CONFIG_H */
5185 #### Report on what we decided to do.
5186 #### Report GTK as a toolkit, even if it doesn't use Xt.
5187 #### It makes printing result more understandable as using GTK sets
5188 #### toolkit_scroll_bars to yes by default.
5189 if test "${HAVE_GTK}" = "yes"; then
5190 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5193 if test $USE_ACL -ne 0; then
5194 ACL_SUMMARY="yes $LIB_ACL"
5199 emacs_standard_dirs='Standard dirs'
5201 Configured for '${canonical}'.
5203 Where should the build process find the source code? ${srcdir}
5204 What compiler should emacs be built with? ${CC} ${CFLAGS}
5205 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5206 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5207 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5208 What window system should Emacs use? ${window_system}
5209 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5210 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5211 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5214 emacs_config_features=
5215 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5216 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5217 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES; do
5220 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5221 CAIRO|TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5222 *) eval val=\${HAVE_$opt} ;;
5225 xno|xnone|x) continue ;;
5230 GTK*|LUCID|MOTIF) opt=$val ;;
5235 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5238 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5239 [Summary of some of the main features enabled by configure.])
5241 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5242 Does Emacs use -lXpm? ${HAVE_XPM}
5243 Does Emacs use -ljpeg? ${HAVE_JPEG}
5244 Does Emacs use -ltiff? ${HAVE_TIFF}
5245 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5246 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5247 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5248 Does Emacs use cairo? ${USE_CAIRO}
5249 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5250 Does Emacs support sound? ${HAVE_SOUND}
5251 Does Emacs use -lgpm? ${HAVE_GPM}
5252 Does Emacs use -ldbus? ${HAVE_DBUS}
5253 Does Emacs use -lgconf? ${HAVE_GCONF}
5254 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5255 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5256 Does Emacs use access control lists? ${ACL_SUMMARY}
5257 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5258 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5259 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5260 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5261 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5262 Does Emacs use -lotf? ${HAVE_LIBOTF}
5263 Does Emacs use -lxft? ${HAVE_XFT}
5264 Does Emacs directly use zlib? ${HAVE_ZLIB}
5265 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5266 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5269 if test -n "${EMACSDATA}"; then
5270 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5272 if test -n "${EMACSDOC}"; then
5273 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5278 if test "$HAVE_NS" = "yes"; then
5280 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5281 The installed application will go to nextstep/Emacs.app and can be
5282 run or moved from there."])
5283 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5284 echo "The application will be fully self-contained."
5286 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5287 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5288 to run if these resources are not installed."])
5293 if test "${opsys}" = "cygwin"; then
5295 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5301 # Remove any trailing slashes in these variables.
5303 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5305 case $exec_prefix in
5306 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5309 if test "$HAVE_NS" = "yes"; then
5310 if test "$NS_IMPL_GNUSTEP" = yes; then
5311 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5312 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5313 ns_check_file=Resources/Info-gnustep.plist
5315 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5316 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5317 ns_check_file=Contents/Info.plist
5319 AC_SUBST(ns_check_file)
5322 dnl config.status treats $srcdir specially, so I think this is ok...
5323 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5325 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5326 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5327 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5328 dnl (else you get "no 'Makefile.am' found for any configure output").
5329 dnl This will work, but you get a config.status that is not quite right
5330 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5331 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5332 dnl it seems better to just live with the duplication.
5333 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5335 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5336 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5337 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5338 leim/Makefile nextstep/Makefile nt/Makefile])
5340 dnl test/ is not present in release tarfiles.
5341 opt_makefile=test/automated/Makefile
5343 if test -f "$srcdir/$opt_makefile.in"; then
5344 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5345 dnl Again, it's best not to use a variable. Though you can add
5346 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5347 AC_CONFIG_FILES([test/automated/Makefile])
5351 dnl The admin/ directory used to be excluded from tarfiles.
5352 if test -d $srcdir/admin; then
5353 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5354 AC_CONFIG_FILES([admin/charsets/Makefile])
5355 AC_CONFIG_FILES([admin/unidata/Makefile])
5356 AC_CONFIG_FILES([admin/grammars/Makefile])
5360 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5362 AC_SUBST(SUBDIR_MAKEFILES_IN)
5364 dnl You might wonder (I did) why epaths.h is generated by running make,
5365 dnl rather than just letting configure generate it from epaths.in.
5366 dnl One reason is that the various paths are not fully expanded (see above);
5367 dnl eg gamedir=${prefix}/var/games/emacs.
5368 dnl Secondly, the GNU Coding standards require that one should be able
5369 dnl to run 'make prefix=/some/where/else' and override the values set
5370 dnl by configure. This also explains the 'move-if-change' test and
5371 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5372 AC_CONFIG_COMMANDS([src/epaths.h], [
5373 if test "${opsys}" = "mingw32"; then
5374 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5376 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5377 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5378 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5380 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5381 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5383 AC_CONFIG_COMMANDS([src/.gdbinit], [
5384 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5385 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5389 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5390 dnl See comments for etc-refcards-emacsver.tex.
5391 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5392 dnl it is not quite the same. But we are generating in $srcdir.
5393 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5394 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5395 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5398 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5399 dnl then a directory etc/refcards is created in the build directory,
5400 dnl which is probably harmless, but confusing (in out-of-tree builds).
5401 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5402 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5403 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5404 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5405 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5410 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])