1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the 'configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2016 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 25.1.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in "$@" CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
135 dnl Fairly arbitrary, older versions might work too.
136 AM_INIT_AUTOMAKE(1.11)
138 dnl Canonicalize the configuration name.
144 if test -z "$host_alias"; then
146 # No --host argument was given to 'configure'; therefore $host
147 # was set to a default value based on the build platform. But
148 # this default value may be wrong if we are building from a
149 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
150 # Therefore, we'll try to get the right host platform from the
153 AC_MSG_CHECKING([the compiler's target])
154 if test -z "$CC"; then
159 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
163 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
164 Please explicitly provide --host.])
166 *) AC_MSG_WARN([Compiler reported non-standard target.
167 Defaulting to $host.])
170 AC_MSG_RESULT([$host])
173 . $srcdir/nt/mingw-cfg.site
177 # srcdir is an absolute path. In this case, force the format
178 # "/c/foo/bar", to simplify later conversions to native Windows
179 # format ("c:/foo/bar").
180 srcdir=`cd "${srcdir}" && pwd -W`
181 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
182 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
188 configuration=${host_alias-${build_alias-$host}}
190 dnl Support for --program-prefix, --program-suffix and
191 dnl --program-transform-name options
194 dnl It is important that variables on the RHS not be expanded here,
195 dnl hence the single quotes. This is per the GNU coding standards, see
196 dnl (autoconf) Installation Directory Variables
197 dnl See also epaths.h below.
198 lispdir='${datadir}/emacs/${version}/lisp'
199 standardlisppath='${lispdir}'
200 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
201 '${datadir}/emacs/site-lisp'
202 lisppath='${locallisppath}:${standardlisppath}'
203 etcdir='${datadir}/emacs/${version}/etc'
204 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
205 etcdocdir='${datadir}/emacs/${version}/etc'
206 gamedir='${localstatedir}/games/emacs'
208 dnl Special option to disable the most of other options.
210 [AS_HELP_STRING([--without-all],
211 [omit almost all features and build
212 small executable with minimal dependencies])],
213 [with_features=$withval],
216 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
217 dnl Create a new --with option that defaults to being disabled.
218 dnl NAME is the base name of the option. The shell variable with_NAME
219 dnl will be set to either the user's value (if the option is
220 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
221 dnl option is not specified). Note that the shell variable name is
222 dnl constructed as autoconf does, by replacing non-alphanumeric
223 dnl characters with "_".
224 dnl HELP-STRING is the help text for the option.
225 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
226 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
227 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
230 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
231 dnl Create a new --with option that defaults to $with_features.
232 dnl NAME is the base name of the option. The shell variable with_NAME
233 dnl will be set either to 'no' (for a plain --without-NAME) or to
234 dnl 'yes' (if the option is not specified). Note that the shell
235 dnl variable name is constructed as autoconf does, by replacing
236 dnl non-alphanumeric characters with "_".
237 dnl HELP-STRING is the help text for the option.
238 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
239 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
240 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
243 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
244 if test "$with_pop" = yes; then
245 AC_DEFINE(MAIL_USE_POP)
247 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
249 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
250 if test "$with_kerberos" != no; then
253 AH_TEMPLATE(KERBEROS,
254 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
256 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
257 if test "${with_kerberos5}" != no; then
258 if test "${with_kerberos}" = no; then
262 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
265 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
266 dnl FIXME hesiod support may not be present, so it seems like an error
267 dnl to define, or at least use, this unconditionally.
268 if test "$with_hesiod" != no; then
269 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
272 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
273 if test "$with_mail_unlink" != no; then
274 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
277 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
278 [string giving default POP mail host])],
279 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
281 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
282 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
283 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
284 [ case "${withval}" in
285 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
286 *) AC_MSG_ERROR(['--with-sound=$withval' is invalid;
287 this option's value should be 'yes', 'no', 'alsa', 'oss', or 'bsd-ossaudio'.])
292 [with_sound=$with_features])
294 dnl FIXME currently it is not the last.
295 dnl This should be the last --with option, because --with-x is
296 dnl added later on when we find the file name of X, and it's best to
297 dnl keep them together visually.
298 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
299 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
300 [ case "${withval}" in
301 y | ye | yes ) val=gtk ;;
303 l | lu | luc | luci | lucid ) val=lucid ;;
304 a | at | ath | athe | athen | athena ) val=athena ;;
305 m | mo | mot | moti | motif ) val=motif ;;
306 g | gt | gtk ) val=gtk ;;
310 AC_MSG_ERROR(['--with-x-toolkit=$withval' is invalid;
311 this option's value should be 'yes', 'no', 'lucid', 'athena', 'motif', 'gtk',
312 'gtk2' or 'gtk3'. 'yes' and 'gtk' are synonyms.
313 'athena' and 'lucid' are synonyms.])
319 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit); allows buffer and string size up to 2GB on 32-bit hosts, at the cost of 10% to 30% slowdown of Lisp interpreter and larger memory footprint])
320 if test "$with_wide_int" = yes; then
321 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
324 dnl _ON results in a '--without' option in the --help output, so
325 dnl the help text should refer to "don't compile", etc.
326 with_xpm_set=${with_xpm+set}
327 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
328 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
329 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
330 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
331 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
332 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
333 OPTION_DEFAULT_OFF([cairo],[compile with Cairo drawing (experimental)])
334 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
335 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
337 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
338 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
339 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
341 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
342 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
343 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
344 AC_ARG_WITH([ns],[AS_HELP_STRING([--with-ns],
345 [use Nextstep (OS X Cocoa or GNUstep) windowing system.
346 On by default on Mac OS X.])],[],[with_ns=maybe])
347 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
349 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
350 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
351 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
352 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
353 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
354 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
355 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
356 OPTION_DEFAULT_OFF([modules],[compile with dynamic modules support])
358 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
359 [use a file notification library (LIB one of: yes, inotify, kqueue, gfile, w32, no)])],
360 [ case "${withval}" in
361 y | ye | yes ) val=yes ;;
363 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
364 k | kq | kqu | kque | kqueu | kqueue ) val=kqueue ;;
365 g | gf | gfi | gfil | gfile ) val=gfile ;;
366 w | w3 | w32 ) val=w32 ;;
367 * ) AC_MSG_ERROR(['--with-file-notification=$withval' is invalid;
368 this option's value should be 'yes', 'no', 'inotify', 'kqueue', 'gfile' or 'w32'.
369 'yes' is a synonym for 'w32' on MS-Windows, for 'no' on Nextstep,
370 otherwise for the first of 'inotify', 'kqueue' or 'gfile' that is usable.])
373 with_file_notification=$val
375 [with_file_notification=$with_features])
377 OPTION_DEFAULT_OFF([xwidgets],
378 [enable use of some gtk widgets in Emacs buffers (requires gtk3)])
380 ## For the times when you want to build Emacs but don't have
381 ## a suitable makeinfo, and can live without the manuals.
382 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
383 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
385 ## This might be a 'configure' arg.
386 AC_SUBST([ACLOCAL_PATH])
388 ## Makefile.in needs the cache file name.
391 ## This is an option because I do not know if all info/man support
392 ## compressed files, nor how to test if they do so.
393 OPTION_DEFAULT_ON([compress-install],
394 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
395 make GZIP_PROG= install])
397 AC_ARG_WITH(gameuser,dnl
398 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
399 [user for shared game score files.
400 An argument prefixed by ':' specifies a group instead.])])
403 # We don't test if we can actually chown/chgrp here, because configure
404 # may run without root privileges. lib-src/Makefile.in will handle
405 # any errors due to missing user/group gracefully.
406 case ${with_gameuser} in
408 "" | yes) gamegroup=games ;;
409 :*) gamegroup=${with_gameuser#:} ;;
410 *) gameuser=${with_gameuser} ;;
413 AC_ARG_WITH([gnustep-conf],dnl
414 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
415 [name of GNUstep configuration file to use on systems where the command
416 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
417 /etc/GNUstep/GNUstep.conf])])
418 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
419 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
420 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
421 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
423 AC_ARG_ENABLE(ns-self-contained,
424 [AS_HELP_STRING([--disable-ns-self-contained],
425 [disable self contained build under NeXTstep])],
426 EN_NS_SELF_CONTAINED=$enableval,
427 EN_NS_SELF_CONTAINED=yes)
430 AC_ARG_ENABLE(locallisppath,
431 [AS_HELP_STRING([--enable-locallisppath=PATH],
432 [directories Emacs should search for lisp files specific
434 if test "${enableval}" = "no"; then
436 elif test "${enableval}" != "yes"; then
437 locallisppath=${enableval} locallisppathset=yes
440 AC_ARG_ENABLE(checking,
441 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
442 [enable expensive run-time checks. With LIST,
443 enable only specific categories of checks.
444 Categories are: all,yes,no.
445 Flags are: stringbytes, stringoverrun, stringfreelist,
446 xmallocoverrun, conslist, glyphs])],
447 [ac_checking_flags="${enableval}"],[])
448 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
449 for check in $ac_checking_flags
452 # these set all the flags to specific states
453 yes) ac_enable_checking=1 ;;
454 no) ac_enable_checking= ;
455 ac_gc_check_stringbytes= ;
456 ac_gc_check_string_overrun= ;
457 ac_gc_check_string_free_list= ;
458 ac_xmalloc_overrun= ;
459 ac_gc_check_cons_list= ;
461 all) ac_enable_checking=1 ;
462 ac_gc_check_stringbytes=1 ;
463 ac_gc_check_string_overrun=1 ;
464 ac_gc_check_string_free_list=1 ;
465 ac_xmalloc_overrun=1 ;
466 ac_gc_check_cons_list=1 ;
468 # these enable particular checks
469 stringbytes) ac_gc_check_stringbytes=1 ;;
470 stringoverrun) ac_gc_check_string_overrun=1 ;;
471 stringfreelist) ac_gc_check_string_free_list=1 ;;
472 xmallocoverrun) ac_xmalloc_overrun=1 ;;
473 conslist) ac_gc_check_cons_list=1 ;;
474 glyphs) ac_glyphs_debug=1 ;;
475 *) AC_MSG_ERROR(unknown check category $check) ;;
480 if test x$ac_enable_checking != x ; then
481 AC_DEFINE(ENABLE_CHECKING, 1,
482 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
484 if test x$ac_gc_check_stringbytes != x ; then
485 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
486 [Define this temporarily to hunt a bug. If defined, the size of
487 strings is redundantly recorded in sdata structures so that it can
488 be compared to the sizes recorded in Lisp strings.])
490 if test x$ac_gc_check_string_overrun != x ; then
491 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
492 [Define this to check for short string overrun.])
494 if test x$ac_gc_check_string_free_list != x ; then
495 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
496 [Define this to check the string free list.])
498 if test x$ac_xmalloc_overrun != x ; then
499 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
500 [Define this to check for malloc buffer overrun.])
502 if test x$ac_gc_check_cons_list != x ; then
503 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
504 [Define this to check for errors in cons list.])
506 if test x$ac_glyphs_debug != x ; then
507 AC_DEFINE(GLYPH_DEBUG, 1,
508 [Define this to enable glyphs debugging code.])
511 AC_ARG_ENABLE(check-lisp-object-type,
512 [AS_HELP_STRING([--enable-check-lisp-object-type],
513 [enable compile time checks for the Lisp_Object data type.
514 This is useful for development for catching certain types of bugs.])],
515 if test "${enableval}" != "no"; then
516 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
517 [Define this to enable compile time checks for the Lisp_Object data type.])
521 dnl The name of this option is unfortunate. It predates, and has no
522 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
523 dnl Actually, it stops it working.
524 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
525 AC_ARG_ENABLE(profiling,
526 [AS_HELP_STRING([--enable-profiling],
527 [build emacs with low-level, gprof profiling support.
528 Mainly useful for debugging Emacs itself. May not work on
529 all platforms. Stops profiler.el working.])],
530 [ac_enable_profiling="${enableval}"],[])
531 if test x$ac_enable_profiling != x ; then
532 PROFILING_CFLAGS="-DPROFILING=1 -pg"
536 AC_SUBST(PROFILING_CFLAGS)
538 AC_ARG_ENABLE(autodepend,
539 [AS_HELP_STRING([--enable-autodepend],
540 [automatically generate dependencies to .h-files.
541 Requires gcc, enabled if found.])],
542 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
544 AC_ARG_ENABLE(gtk-deprecation-warnings,
545 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
546 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
547 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
549 dnl This used to use changequote, but, apart from 'changequote is evil'
550 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
551 dnl the great gob of text. Thus it's not processed for possible expansion.
552 dnl Just make sure the brackets remain balanced.
554 dnl Since Emacs can't find matching pairs of quotes, boundaries are
555 dnl indicated by comments.
559 ### If you add support for a new configuration, add code to this
560 ### switch statement to recognize your configuration name and select
561 ### the appropriate opsys.
563 ### As far as handling version numbers on operating systems is
564 ### concerned, make sure things will fail in a fixable way. If
565 ### /etc/MACHINES doesn't say anything about version numbers, be
566 ### prepared to handle anything reasonably. If version numbers
567 ### matter, be sure /etc/MACHINES says something about it.
570 case "${canonical}" in
572 ## GNU/Linux and similar ports
587 ## FreeBSD kernel + glibc based userland
598 *-*-openbsd* | *-*-mirbsd* )
602 ## Apple Darwin / Mac OS X
604 case "${canonical}" in
605 *-apple-darwin[0-9].*) unported=yes ;;
606 i[3456]86-* | x86_64-* ) ;;
610 ## Use fink packages if available.
611 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
612 ## if test -d /sw/include && test -d /sw/lib; then
613 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
614 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
618 ## Chromium Native Client
628 ## HP 9000 series 700 and 800, running HP/UX
632 hppa*-hp-hpux1[1-9]* )
634 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
638 rs6000-ibm-aix4.[23]* )
641 powerpc-ibm-aix4.[23]* )
644 rs6000-ibm-aix[56]* )
647 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
651 ## Silicon Graphics machines
655 # Without defining _LANGUAGE_C, things get masked out in the headers
656 # so that, for instance, grepping for 'free' in stdlib.h fails and
657 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
658 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
663 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
664 | x86_64-*-solaris2* | x86_64-*-sunos5*)
665 case "${canonical}" in
667 amd64-*-*|x86_64-*-*) ;;
671 case "${canonical}" in
672 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
674 emacs_check_sunpro_c=yes
676 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
677 ## Note that Emacs 23.1's NEWS said the following would be dropped.
678 *-sunos5.6* | *-solaris2.6* )
682 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
683 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
685 emacs_check_sunpro_c=yes
688 ## Watch out for a compiler that we know will not work.
689 case "${canonical}" in
690 *-solaris* | *-sunos5* )
691 if [ "x$CC" = x/usr/ucb/cc ]; then
692 ## /usr/ucb/cc doesn't work;
693 ## we should find some other compiler that does work.
701 ## Intel 386 machines where we don't care about the manufacturer.
703 case "${canonical}" in
704 *-darwin* ) opsys=darwin ;;
707 # MinGW overrides and adds some system headers in nt/inc.
708 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
710 *-sysv4.2uw* ) opsys=unixware ;;
711 *-sysv5uw* ) opsys=unixware ;;
712 *-sysv5OpenUNIX* ) opsys=unixware ;;
713 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
719 case "${canonical}" in
722 # MinGW overrides and adds some system headers in nt/inc.
723 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
725 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
734 ### If the code above didn't choose an operating system, just choose
735 ### an operating system based on the configuration name. You really
736 ### only want to use this when you have no idea what the right
737 ### operating system is; if you know what operating systems a machine
738 ### runs, it's cleaner to make it explicit in the case statement
740 if test x"${opsys}" = x; then
741 case "${canonical}" in
742 *-gnu* ) opsys=gnu ;;
752 if test $unported = yes; then
753 AC_MSG_ERROR([Emacs does not support '${canonical}' systems.
754 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
755 Check 'etc/MACHINES' for recognized configuration names.])
758 #### Choose a compiler.
760 dnl Don't bother to test for C89.
761 AC_DEFUN([_AC_PROG_CC_C89], [$2])
763 dnl Sets GCC=yes if using gcc.
764 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
765 if test -n "$XCRUN"; then
766 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
767 test -n "$AR" && export AR
770 dnl Emacs needs C99 or later.
775 if test x$GCC = xyes; then
776 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
778 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
781 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
782 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
783 dnl that clash with MinGW.
784 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
786 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
787 AC_DEFUN([gl_CRYPTO_CHECK])
788 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
789 # as we don't use them.
790 AC_DEFUN([gl_FCNTL_O_FLAGS])
791 # Avoid gnulib's test for pthread_sigmask.
793 for func in $ac_func_list; do
794 test $func = pthread_sigmask || AS_VAR_APPEND([funcs], [" $func"])
797 # Use the system putenv even if it lacks GNU features, as we don't need them,
798 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
799 AC_CHECK_FUNCS_ONCE([putenv])
800 AC_DEFUN([gl_FUNC_PUTENV],
801 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
803 # Initialize gnulib right after choosing the compiler.
804 dnl Amongst other things, this sets AR and ARFLAGS.
807 if test "$ac_test_CFLAGS" != set; then
808 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
809 # if -g3 works and the user does not specify CFLAGS.
810 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
813 emacs_g3_CFLAGS='-g3';;
815 emacs_g3_CFLAGS='-g3 -O2';;
819 if test -n "$emacs_g3_CFLAGS"; then
820 emacs_save_CFLAGS=$CFLAGS
821 CFLAGS=$emacs_g3_CFLAGS
822 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
823 [emacs_cv_prog_cc_g3],
824 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
825 [emacs_cv_prog_cc_g3=yes],
826 [emacs_cv_prog_cc_g3=no])])
827 if test $emacs_cv_prog_cc_g3 != yes; then
828 CFLAGS=$emacs_save_CFLAGS
830 if test $opsys = mingw32; then
831 CFLAGS="$CFLAGS -gdwarf-2"
838 # No optimization flag was inferred for this non-GCC compiler.
839 # Try -O. This is needed for xlc on AIX; see Bug#14258.
840 emacs_save_CFLAGS=$CFLAGS
841 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
843 AC_CACHE_CHECK([whether $CC accepts -O],
844 [emacs_cv_prog_cc_o],
845 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
846 [emacs_cv_prog_cc_o=yes],
847 [emacs_cv_prog_cc_o=no])])
848 if test $emacs_cv_prog_cc_o != yes; then
849 CFLAGS=$emacs_save_CFLAGS
854 AC_ARG_ENABLE([gcc-warnings],
855 [AS_HELP_STRING([--enable-gcc-warnings],
856 [turn on lots of GCC warnings/errors. This is intended for
857 developers, and may generate false alarms when used
858 with older or non-GNU development tools.])],
861 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
863 gl_gcc_warnings=$enableval],
867 # clang is unduly picky about some things.
868 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
875 [emacs_cv_clang=yes],
876 [emacs_cv_clang=no])])
878 # When compiling with GCC, prefer -isystem to -I when including system
879 # include files, to avoid generating useless diagnostics for the files.
880 if test "$gl_gcc_warnings" != yes; then
882 if test "$emacs_cv_clang" = yes
884 # Turn off some warnings if supported.
885 gl_WARN_ADD([-Wno-switch])
886 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
887 gl_WARN_ADD([-Wno-pointer-sign])
888 gl_WARN_ADD([-Wno-string-plus-int])
889 gl_WARN_ADD([-Wno-unknown-attributes])
894 # This, $nw, is the list of warnings we disable.
897 case $with_x_toolkit in
898 lucid | athena | motif)
899 # Old toolkits mishandle 'const'.
900 nw="$nw -Wwrite-strings"
903 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
906 AC_SUBST([WERROR_CFLAGS])
908 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
909 nw="$nw -Woverlength-strings" # Not a problem these days
910 nw="$nw -Wformat-nonliteral" # we do this a lot
911 nw="$nw -Wvla" # Emacs uses <vla.h>.
912 nw="$nw -Wswitch-default" # Too many warnings for now
913 nw="$nw -Winline" # OK to ignore 'inline'
914 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
915 # signed overflow has undefined behavior
916 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
917 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
918 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
920 # Emacs doesn't care about shadowing; see
921 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
924 # Emacs's use of alloca inhibits protecting the stack.
925 nw="$nw -Wstack-protector"
927 # Emacs's use of partly-const functions such as Fgnutls_available_p
928 # make this option problematic.
929 nw="$nw -Wsuggest-attribute=const"
931 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
932 # option problematic.
933 nw="$nw -Wsuggest-attribute=pure"
935 # This part is merely for shortening the command line,
936 # since -Wall implies -Wswitch.
939 # This part is merely for shortening the command line,
940 # since -Wno-FOO needs to be added below regardless.
941 nw="$nw -Wmissing-field-initializers"
942 nw="$nw -Wtype-limits"
943 nw="$nw -Wunused-parameter"
945 if test $emacs_cv_clang = yes; then
946 nw="$nw -Wcast-align"
949 gl_MANYWARN_ALL_GCC([ws])
950 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
954 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
955 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
956 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
957 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
958 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
959 gl_WARN_ADD([-Wno-format-nonliteral])
961 # More things that clang is unduly picky about.
962 if test $emacs_cv_clang = yes; then
963 gl_WARN_ADD([-Wno-format-extra-args])
964 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
965 gl_WARN_ADD([-Wno-unused-command-line-argument])
966 gl_WARN_ADD([-Wno-unused-value])
969 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
970 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
971 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
972 [/* Enable compile-time and run-time bounds-checking, and some warnings,
973 without upsetting glibc 2.15+. */
974 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
975 && defined __OPTIMIZE__ && __OPTIMIZE__)
976 # define _FORTIFY_SOURCE 2
980 # We use a slightly smaller set of warning options for lib/.
981 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
983 nw="$nw -Wunused-macros"
985 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
986 AC_SUBST([GNULIB_WARN_CFLAGS])
996 AC_ARG_ENABLE(link-time-optimization,
997 [AS_HELP_STRING([--enable-link-time-optimization],
998 [build emacs with link-time optimization.
999 This requires GCC 4.5.0 or later, or clang.
1000 (Note that clang support is experimental - see INSTALL.)
1001 It also makes Emacs harder to debug, and when we tried it
1002 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1003 recommended for typical use.])],
1004 if test "${enableval}" != "no"; then
1006 if test $emacs_cv_clang = yes; then
1007 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1008 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1009 if test -x "$GOLD_PLUGIN"; then
1012 elif test x$GCC = xyes; then
1013 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1014 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1015 if test x$CPUS != x; then
1021 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1023 if test -z "$LTO"; then
1027 CFLAGS="$CFLAGS $LTO"
1028 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1029 [ac_lto_supported=yes], [ac_lto_supported=no])
1030 CFLAGS="$old_CFLAGS"
1032 AC_MSG_RESULT([$ac_lto_supported])
1033 if test "$ac_lto_supported" = "yes"; then
1034 CFLAGS="$CFLAGS $LTO"
1035 if test x$emacs_cv_clang = xyes; then
1036 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1037 # WARNING: 'ar --plugin ...' doesn't work without
1038 # command, so plugin name is appended to ARFLAGS.
1039 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1040 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1042 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1043 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1044 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1045 dnl dump core on Fedora 20, so play it safe for now.
1046 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1047 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1052 dnl Prefer silent make output. For verbose output, use
1053 dnl 'configure --disable-silent-rules' or 'make V=1' .
1054 AM_SILENT_RULES([yes])
1055 dnl Port to Automake 1.11.
1056 dnl This section can be removed once we assume Automake 1.14 or later.
1057 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1058 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1060 AM_SUBST_NOTMAKE([AM_V])
1061 AC_SUBST([AM_DEFAULT_V])
1062 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1063 AC_SUBST([AM_DEFAULT_VERBOSITY])
1065 dnl Some other nice autoconf tests.
1066 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1069 dnl if test "x$RANLIB" = x; then
1074 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1075 dnl can be made to directories. This is not relevant for our usage, and
1076 dnl excludes some cases that work fine for us. Eg MS Windows or files
1077 dnl hosted on AFS, both examples where simple links work, but links to
1078 dnl directories fail. We use a cut-down version instead.
1081 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1082 rm -f conf$$ conf$$.file
1084 LN_S_FILEONLY='cp -p'
1086 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1087 dnl random program in the current directory.
1088 if (echo >conf$$.file) 2>/dev/null; then
1089 if ln -s conf$$.file conf$$ 2>/dev/null; then
1090 if test "$opsys" = "mingw32"; then
1091 LN_S_FILEONLY='/bin/ln -s'
1093 LN_S_FILEONLY='ln -s'
1095 elif ln conf$$.file conf$$ 2>/dev/null; then
1096 if test "$opsys" = "mingw32"; then
1097 LN_S_FILEONLY=/bin/ln
1104 rm -f conf$$ conf$$.file
1106 if test "$LN_S_FILEONLY" = "ln -s"; then
1107 AC_MSG_RESULT([yes])
1109 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1112 AC_SUBST(LN_S_FILEONLY)
1115 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1116 dnl doesn't support links to directories, as in "ln file dir". But that
1117 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1118 dnl executables at "make install" time.
1119 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1120 dnl for more details.
1121 if test "$opsys" = "mingw32"; then
1125 dnl On some Debian versions, "install-info" prints irritating messages
1126 dnl "This is not dpkg install-info anymore, but GNU install-info"
1127 dnl if called via an absolute file name.
1128 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1129 dnl Sadly some people may have an old ginstall-info installed on
1130 dnl non-Debian systems, so we can't use this.
1131 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1132 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1134 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1135 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1136 dnl Don't use GZIP, which is used by gzip for additional parameters.
1137 AC_PATH_PROG(GZIP_PROG, gzip)
1139 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1140 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1142 if test $opsys = gnu-linux; then
1143 AC_PATH_PROG(PAXCTL, paxctl,,
1144 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1145 if test "X$PAXCTL" != X; then
1146 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1147 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1148 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1149 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1152 if test "${SETFATTR+set}" != set; then
1153 AC_CACHE_CHECK([for setfattr],
1154 [emacs_cv_prog_setfattr],
1156 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1157 emacs_cv_prog_setfattr=yes
1159 emacs_cv_prog_setfattr=no
1161 if test "$emacs_cv_prog_setfattr" = yes; then
1167 AC_SUBST([SETFATTR])
1171 ## Need makeinfo >= 4.7 (?) to build the manuals.
1172 if test "$MAKEINFO" != "no"; then
1173 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1176 case `($MAKEINFO --version) 2>/dev/null` in
1177 *' (GNU texinfo) '4.[[7-9]]* | \
1178 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1179 *' (GNU texinfo) '[[5-9]]* | \
1180 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1185 ## Makeinfo is unusual. For a released Emacs, the manuals are
1186 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1187 ## therefore in the category of "special tools" not normally required, which
1188 ## configure does not have to check for (eg autoconf itself).
1189 ## In a repository checkout on the other hand, the manuals are not included.
1190 ## So makeinfo is a requirement to build from the repository, and configure
1191 ## should test for it as it does for any other build requirement.
1192 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1193 ## with pre-built manuals, from a repository checkout.
1196 if test "$MAKEINFO" = "no"; then
1198 if test "x${with_makeinfo}" = "xno"; then
1200 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1201 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1202 source tree does not seem to have pre-built manuals in the 'info' directory.
1203 Either install a suitable version of makeinfo, or re-run configure
1204 with the '--without-makeinfo' option to build without the manuals.] )
1207 AC_SUBST(HAVE_MAKEINFO)
1209 if test $opsys = mingw32; then
1210 DOCMISC_W32=efaq-w32
1214 AC_SUBST(DOCMISC_W32)
1216 dnl Add our options to ac_link now, after it is set up.
1218 if test x$GCC = xyes; then
1219 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1220 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1222 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1223 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1226 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1227 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1228 dnl (Don't use '-z nocombreloc' as -z takes no arg on Irix.)
1229 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1230 dnl if not built to support GNU ld.
1232 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1233 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1234 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1235 dnl Eg "make LDFLAGS=... all" could run into problems,
1236 dnl http://bugs.debian.org/684788
1237 dnl * unnecessary, since temacs is the only thing that actually needs it.
1238 dnl Indeed this is where it was originally, prior to:
1239 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1240 late_LDFLAGS="$LDFLAGS"
1241 if test x$GCC = xyes; then
1242 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1244 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1247 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1249 AC_MSG_CHECKING([for -znocombreloc])
1250 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1251 [AC_MSG_RESULT(yes)],
1252 LDFLAGS_NOCOMBRELOC=
1253 [AC_MSG_RESULT(no)])
1255 LDFLAGS="$late_LDFLAGS"
1257 AC_CACHE_CHECK([whether addresses are sanitized],
1258 [emacs_cv_sanitize_address],
1261 [[#ifndef __has_feature
1262 #define __has_feature(f) 0
1264 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1266 error "Addresses are not sanitized.";
1269 [emacs_cv_sanitize_address=yes],
1270 [emacs_cv_sanitize_address=no])])
1272 dnl The function dump-emacs will not be defined and temacs will do
1273 dnl (load "loadup") automatically unless told otherwise.
1274 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1276 nacl) CANNOT_DUMP=yes ;;
1279 if test "$CANNOT_DUMP" = "yes"; then
1280 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1281 elif test "$emacs_cv_sanitize_address" = yes; then
1282 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1285 AC_SUBST(CANNOT_DUMP)
1288 UNEXEC_OBJ=unexelf.o
1290 # MSDOS uses unexcoff.o
1292 UNEXEC_OBJ=unexaix.o
1298 UNEXEC_OBJ=unexmacosx.o
1301 UNEXEC_OBJ=unexhp9k800.o
1304 UNEXEC_OBJ=unexw32.o
1307 # Use the Solaris dldump() function, called from unexsol.c, to dump
1308 # emacs, instead of the generic ELF dump code found in unexelf.c.
1309 # The resulting binary has a complete symbol table, and is better
1310 # for debugging and other observability tools (debuggers, pstack, etc).
1312 # If you encounter a problem using dldump(), please consider sending
1313 # a message to the OpenSolaris tools-linking mailing list:
1314 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1316 # It is likely that dldump() works with older Solaris too, but this has
1317 # not been tested, so for now this change is for Solaris 10 or newer.
1318 UNEXEC_OBJ=unexsol.o
1325 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1326 ## The system compiler, GCC, has apparently been modified to not
1327 ## look there, contrary to what a stock GCC would do.
1328 ### It's not our place to do this. See bug#10313#17.
1329 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1334 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1335 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1339 ### It's not our place to do this. See bug#10313#17.
1340 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1345 ## Han Boetes <han@boetes.org> says this is necessary,
1346 ## otherwise Emacs dumps core on elf systems.
1347 LD_SWITCH_SYSTEM="-Z"
1350 AC_SUBST(LD_SWITCH_SYSTEM)
1352 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1354 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1355 ## which has not been defined yet. When this was handled with cpp,
1356 ## it was expanded to null when configure sourced the s/*.h file.
1357 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1358 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1359 ## (or somesuch), but because it is supposed to go at the _front_
1360 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1361 ## Compare with the gnu-linux case below, which added to the end
1362 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1363 ## LD_SWITCH_SYSTEM_TEMACS.
1366 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1373 AC_CHECK_DECL([__ELF__])
1374 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1375 ## With ELF, make sure that all common symbols get allocated to in the
1376 ## data section. Otherwise, the dump of temacs may miss variables in
1377 ## the shared library that have been initialized. For example, with
1378 ## GNU libc, __malloc_initialized would normally be resolved to the
1379 ## shared library's .bss section, which is fatal.
1380 if test "x$GCC" = "xyes"; then
1381 C_SWITCH_MACHINE="-fno-common"
1383 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1386 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1387 dnl albeit under the mistaken assumption that said file
1388 dnl was no longer used.
1389 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1393 AC_SUBST(C_SWITCH_MACHINE)
1395 AC_SUBST(UNEXEC_OBJ)
1398 ## Some programs in src produce warnings saying certain subprograms
1399 ## are too complex and need a MAXMEM value greater than 2000 for
1400 ## additional optimization. --nils@exp-math.uni-essen.de
1401 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1402 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1403 if test "$opsys" = "mingw32"; then
1404 case "$canonical" in
1405 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1406 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1409 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1410 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1411 AC_SUBST(C_SWITCH_SYSTEM)
1416 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1417 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1419 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1421 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1423 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1425 ## Motif needs -lgen.
1426 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1429 AC_SUBST(LIBS_SYSTEM)
1431 ### Make sure subsequent tests use flags consistent with the build flags.
1433 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1434 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1436 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1439 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1440 AC_DEFUN([AC_TYPE_SIZE_T])
1441 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1442 AC_DEFUN([AC_TYPE_UID_T])
1444 # sqrt and other floating-point functions such as fmod and frexp
1445 # are found in -lm on many systems.
1447 AC_SEARCH_LIBS([sqrt], [m])
1448 if test "X$LIBS" = "X$OLD_LIBS"; then
1451 LIB_MATH=$ac_cv_search_sqrt
1455 dnl Current possibilities handled by sed (aix4-2 -> aix,
1456 dnl gnu-linux -> gnu/linux, etc.):
1457 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1458 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1459 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1466 ## Adding -lm confuses the dynamic linker, so omit it.
1469 freebsd | dragonfly )
1470 SYSTEM_TYPE=berkeley-unix
1472 gnu-linux | gnu-kfreebsd )
1474 hpux10-20 | hpux11 )
1478 SYSTEM_TYPE=windows-nt
1480 dnl NB this may be adjusted below.
1482 SYSTEM_TYPE=berkeley-unix
1486 SYSTEM_TYPE=usg-unix-v
1492 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1493 [The type of system you are compiling for; sets 'system-type'.])
1496 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1497 pre_PKG_CONFIG_LIBS=$LIBS
1499 PKG_PROG_PKG_CONFIG(0.9.0)
1501 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1502 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1503 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1504 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1505 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1506 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1508 AC_DEFUN([EMACS_CHECK_MODULES],
1509 [PKG_CHECK_MODULES([$1], [$2],
1510 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1511 m4_default([$3], [HAVE_$1=yes])],
1512 [m4_default([$4], [HAVE_$1=no])])])
1515 if test "${with_sound}" != "no"; then
1516 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1517 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1518 have_sound_header=yes, [], [
1520 #define WIN32_LEAN_AND_MEAN
1521 #include <windows.h>
1524 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1525 AC_MSG_ERROR([OSS sound support requested but not found.])
1527 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1528 # Emulation library used on NetBSD.
1529 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1530 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1531 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1532 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1533 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1537 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1539 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1540 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1541 if test $HAVE_ALSA = yes; then
1542 SAVE_CFLAGS="$CFLAGS"
1544 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1545 LIBS="$ALSA_LIBS $LIBS"
1546 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1547 emacs_alsa_normal=yes,
1548 emacs_alsa_normal=no)
1549 if test "$emacs_alsa_normal" != yes; then
1550 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1551 [[snd_lib_error_set_handler (0);]])],
1552 emacs_alsa_subdir=yes,
1553 emacs_alsa_subdir=no)
1554 if test "$emacs_alsa_subdir" != yes; then
1555 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1557 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1560 CFLAGS="$SAVE_CFLAGS"
1562 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1563 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1564 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1565 elif test "${with_sound}" = "alsa"; then
1566 AC_MSG_ERROR([ALSA sound support requested but not found.])
1568 fi dnl with_sound = alsa|yes
1570 dnl Define HAVE_SOUND if we have sound support. We know it works and
1571 dnl compiles only on the specified platforms. For others, it
1572 dnl probably doesn't make sense to try.
1573 dnl FIXME So surely we should bypass this whole section if not using
1574 dnl one of these platforms?
1575 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1577 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1578 dnl Adjust the --with-sound help text if you change this.
1579 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1580 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1586 AC_SUBST(CFLAGS_SOUND)
1589 dnl checks for header files
1590 AC_CHECK_HEADERS_ONCE(
1596 sys/utsname.h pwd.h utmp.h util.h)
1598 AC_MSG_CHECKING(if personality LINUX32 can be set)
1599 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1600 emacs_cv_personality_linux32=yes,
1601 emacs_cv_personality_linux32=no)
1602 AC_MSG_RESULT($emacs_cv_personality_linux32)
1604 if test $emacs_cv_personality_linux32 = yes; then
1605 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1606 [Define to 1 if personality LINUX32 can be set.])
1609 # Note that Solaris has sys/sysinfo.h which defines struct
1610 # sysinfo as well. To make sure that we're using GNU/Linux
1611 # sysinfo, we explicitly set one of its fields.
1612 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1613 AC_MSG_CHECKING([if Linux sysinfo may be used])
1614 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1615 [[struct sysinfo si;
1618 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1619 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1620 if test $emacs_cv_linux_sysinfo = yes; then
1621 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1622 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1623 [[struct sysinfo si; return si.mem_unit]])],
1624 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1625 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1629 dnl On Solaris 8 there's a compilation warning for term.h because
1630 dnl it doesn't define 'bool'.
1631 AC_CHECK_HEADERS(term.h, , , -)
1633 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1635 if test $ac_cv_have_decl_sys_siglist != yes; then
1636 # For Tru64, at least:
1637 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1642 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1643 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1644 #if HAVE_SYS_SOCKET_H
1645 #include <sys/socket.h>
1647 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1648 #if HAVE_SYS_SOCKET_H
1649 #include <sys/socket.h>
1651 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1652 #if HAVE_SYS_SOCKET_H
1653 #include <sys/socket.h>
1656 dnl checks for structure members
1657 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1658 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1659 struct ifreq.ifr_addr,
1660 struct ifreq.ifr_addr.sa_len], , ,
1661 [AC_INCLUDES_DEFAULT
1662 #if HAVE_SYS_SOCKET_H
1663 #include <sys/socket.h>
1669 dnl Check for endianness.
1670 dnl AC_C_BIGENDIAN is done by gnulib.
1672 dnl check for Make feature
1675 dnl check if we have GCC and autodepend is on.
1676 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1677 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1678 SAVE_CFLAGS="$CFLAGS"
1679 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1680 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1681 CFLAGS="$SAVE_CFLAGS"
1682 test -f deps.d || ac_enable_autodepend=no
1684 AC_MSG_RESULT([$ac_enable_autodepend])
1685 if test $ac_enable_autodepend = yes; then
1689 AC_SUBST(AUTO_DEPEND)
1691 dnl checks for operating system services
1692 AC_SYS_LONG_FILE_NAMES
1694 #### Choose a window system.
1696 ## We leave window_system equal to none if
1697 ## we end up building without one. Any new window system should
1698 ## set window_system to an appropriate value and add objects to
1699 ## window-system-specific substs.
1703 if test "$no_x" != yes; then
1707 LD_SWITCH_X_SITE_RPATH=
1708 if test "${x_libraries}" != NONE; then
1709 if test -n "${x_libraries}"; then
1710 LD_SWITCH_X_SITE=-L`AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -L/g'`
1711 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`
1712 AS_ECHO(["$x_libraries"]) | sed -e 's/:/ -Wl,-rpath,/g'
1715 x_default_search_path=""
1716 x_search_path=${x_libraries}
1717 if test -z "${x_search_path}"; then
1718 x_search_path=/usr/lib
1720 for x_library in `AS_ECHO(["$x_search_path:"]) | \
1721 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1723 ${x_library}/X11/%L/%T/%N%C%S:\
1724 ${x_library}/X11/%l/%T/%N%C%S:\
1725 ${x_library}/X11/%T/%N%C%S:\
1726 ${x_library}/X11/%L/%T/%N%S:\
1727 ${x_library}/X11/%l/%T/%N%S:\
1728 ${x_library}/X11/%T/%N%S"
1729 if test x"${x_default_search_path}" = x; then
1730 x_default_search_path=${x_search_path}
1732 x_default_search_path="${x_search_path}:${x_default_search_path}"
1736 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1738 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1739 C_SWITCH_X_SITE=$isystem`AS_ECHO(["$x_includes"]) | sed -e "s/:/ $isystem/g"`
1742 if test x"${x_includes}" = x; then
1743 bitmapdir=/usr/include/X11/bitmaps
1745 # accumulate include directories that have X11 bitmap subdirectories
1747 for bmd in `AS_ECHO(["$x_includes"]) | sed -e 's/:/ /g'`; do
1748 if test -d "${bmd}/X11/bitmaps"; then
1749 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1751 if test -d "${bmd}/bitmaps"; then
1752 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1755 bitmapdir=${bmd_acc#:}
1758 test "${with_ns}" = maybe && test "${opsys}" != darwin && with_ns=no
1760 NS_GNUSTEP_CONFIG=no
1763 tmp_CPPFLAGS="$CPPFLAGS"
1764 tmp_CFLAGS="$CFLAGS"
1765 CPPFLAGS="$CPPFLAGS -x objective-c"
1766 CFLAGS="$CFLAGS -x objective-c"
1769 if test "${with_ns}" != no; then
1770 if test "${opsys}" = darwin; then
1772 ns_appdir=`pwd`/nextstep/Emacs.app
1773 ns_appbindir=${ns_appdir}/Contents/MacOS
1774 ns_appresdir=${ns_appdir}/Contents/Resources
1775 ns_appsrc=Cocoa/Emacs.base
1776 ns_fontfile=macfont.o
1777 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1779 NS_GNUSTEP_CONFIG=yes
1780 GNU_OBJC_CFLAGS=$flags
1781 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1782 elif test -f $GNUSTEP_CONFIG_FILE; then
1784 dnl FIXME sourcing this several times in subshells seems inefficient.
1785 GNUSTEP_SYSTEM_HEADERS=$(
1786 . $GNUSTEP_CONFIG_FILE
1787 AS_ECHO(["$GNUSTEP_SYSTEM_HEADERS"])
1789 GNUSTEP_SYSTEM_LIBRARIES=$(
1790 . $GNUSTEP_CONFIG_FILE
1791 AS_ECHO(["$GNUSTEP_SYSTEM_LIBRARIES"])
1793 dnl I seemed to need these as well with GNUstep-startup 0.25.
1794 GNUSTEP_LOCAL_HEADERS=$(
1795 . $GNUSTEP_CONFIG_FILE
1796 AS_ECHO(["$GNUSTEP_LOCAL_HEADERS"])
1798 GNUSTEP_LOCAL_LIBRARIES=$(
1799 . $GNUSTEP_CONFIG_FILE
1800 AS_ECHO(["$GNUSTEP_LOCAL_LIBRARIES"])
1802 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1803 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1804 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1805 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1806 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1807 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1808 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1809 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1810 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1811 dnl If they had chosen to either define it or not, we could have
1812 dnl just used AC_CHECK_DECL here.
1813 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1814 emacs_cv_objc_exceptions,
1815 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1816 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1820 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1821 if test $emacs_cv_objc_exceptions = yes; then
1822 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1823 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1824 [Define if GNUstep uses ObjC exceptions.])
1825 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1828 if test $NS_IMPL_GNUSTEP = yes; then
1829 ns_appdir=`pwd`/nextstep/Emacs.app
1830 ns_appbindir=${ns_appdir}
1831 ns_appresdir=${ns_appdir}/Resources
1832 ns_appsrc=GNUstep/Emacs.base
1833 ns_fontfile=nsfont.o
1836 dnl This is only used while we test the NS headers, it gets reset below.
1837 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1838 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1840 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1841 [AC_MSG_ERROR([The include files (AppKit/AppKit.h etc) that
1842 are required for a Nextstep build are missing or cannot be compiled.
1843 Either fix this, or re-configure with the option '--without-ns'.])])
1846 if test "${NS_IMPL_COCOA}" = "yes"; then
1847 AC_MSG_CHECKING([for OSX 10.6 or newer])
1848 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1850 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1851 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1854 error "OSX 10.6 or newer required";
1858 ns_osx_have_106=yes,
1860 AC_MSG_RESULT([$ns_osx_have_106])
1862 if test $ns_osx_have_106 = no; then
1863 AC_MSG_ERROR([OSX 10.6 or newer is required]);
1868 AC_SUBST(LIBS_GNUSTEP)
1870 INSTALL_ARCH_INDEP_EXTRA=install-etc
1871 ns_self_contained=no
1874 if test "${HAVE_NS}" = yes; then
1875 if test "$with_toolkit_scroll_bars" = "no"; then
1876 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1879 window_system=nextstep
1880 # set up packaging dirs
1881 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1882 ns_self_contained=yes
1883 prefix=${ns_appresdir}
1884 exec_prefix=${ns_appbindir}
1885 dnl This one isn't really used, only archlibdir is.
1886 libexecdir="\${ns_appbindir}/libexec"
1887 archlibdir="\${ns_appbindir}/libexec"
1888 etcdocdir="\${ns_appresdir}/etc"
1889 etcdir="\${ns_appresdir}/etc"
1890 dnl FIXME maybe set datarootdir instead.
1891 dnl That would also get applications, icons, man.
1892 infodir="\${ns_appresdir}/info"
1893 mandir="\${ns_appresdir}/man"
1894 lispdir="\${ns_appresdir}/lisp"
1895 test "$locallisppathset" = no && locallisppath=""
1896 INSTALL_ARCH_INDEP_EXTRA=
1899 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1901 CFLAGS="$tmp_CFLAGS"
1902 CPPFLAGS="$tmp_CPPFLAGS"
1903 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1904 AC_SUBST(ns_self_contained)
1906 AC_SUBST(NS_OBJC_OBJ)
1917 if test "${with_w32}" != no; then
1920 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1921 [AC_MSG_ERROR(['--with-w32' was specified, but windows.h
1922 cannot be found.])])
1925 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1928 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1933 if test "${opsys}" = "mingw32"; then
1934 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1935 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1936 #include <windows.h>
1937 #include <usp10.h>]],
1938 [[PIMAGE_NT_HEADERS pHeader;
1939 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1940 [emacs_cv_w32api=yes
1943 AC_MSG_RESULT($emacs_cv_w32api)
1944 if test "${emacs_cv_w32api}" = "no"; then
1945 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1956 if test "${HAVE_W32}" = "yes"; then
1957 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1958 if test "$with_toolkit_scroll_bars" = "no"; then
1959 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
1961 AC_CHECK_TOOL(WINDRES, [windres],
1962 [AC_MSG_ERROR([No resource compiler found.])])
1963 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1964 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1965 EMACSRES="emacs.res"
1966 case "$canonical" in
1967 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1968 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1970 dnl Construct something of the form "24,4,0,0" with 4 components.
1971 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
1973 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
1974 AC_SUBST(comma_version)
1975 AC_SUBST(comma_space_version)
1976 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
1977 if test "${opsys}" = "cygwin"; then
1978 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1979 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1980 # Tell the linker that emacs.res is an object (which we compile from
1981 # the rc file), not a linker script.
1982 W32_RES_LINK="-Wl,emacs.res"
1984 UPDATE_MANIFEST=update-game-score.exe.manifest
1985 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1986 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1987 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1988 W32_RES_LINK="\$(EMACSRES)"
1989 CLIENTRES="emacsclient.res"
1990 CLIENTW="emacsclientw\$(EXEEXT)"
1991 FIRSTFILE_OBJ=firstfile.o
1994 LIBS_ECLIENT="-lcomctl32"
1995 LIB_WSOCK32="-lwsock32"
1996 NTLIB="ntlib.$ac_objext"
1997 XARGS_LIMIT="-s 10000"
2003 AC_SUBST(EMACS_MANIFEST)
2004 AC_SUBST(UPDATE_MANIFEST)
2007 AC_SUBST(W32_RES_LINK)
2008 AC_SUBST(FIRSTFILE_OBJ)
2011 AC_SUBST(LIBS_ECLIENT)
2012 AC_SUBST(LIB_WSOCK32)
2014 AC_SUBST(XARGS_LIMIT)
2016 if test "${HAVE_W32}" = "yes"; then
2021 ## $window_system is now set to the window system we will
2024 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
2025 # Too many warnings for now.
2027 nw="$nw -Wsuggest-attribute=noreturn"
2028 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
2030 gl_WARN_ADD([-Wno-unused-variable])
2031 gl_WARN_ADD([-Wno-unused-but-set-variable])
2032 gl_WARN_ADD([-Wno-unused-but-set-parameter])
2040 case "${window_system}" in
2045 case "${with_x_toolkit}" in
2046 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2047 motif ) USE_X_TOOLKIT=MOTIF ;;
2049 term_header=gtkutil.h
2050 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2051 dnl USE_X_TOOLKIT is set.
2052 USE_X_TOOLKIT=none ;;
2053 gtk2 ) with_gtk2=yes
2054 term_header=gtkutil.h
2055 USE_X_TOOLKIT=none ;;
2056 gtk3 ) with_gtk3=yes
2057 term_header=gtkutil.h
2058 USE_X_TOOLKIT=none ;;
2059 no ) USE_X_TOOLKIT=none ;;
2060 dnl If user did not say whether to use a toolkit, make this decision later:
2061 dnl use the toolkit if we have gtk, or X11R5 or newer.
2062 * ) USE_X_TOOLKIT=maybe ;;
2066 term_header=nsterm.h
2069 term_header=w32term.h
2073 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2074 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2075 if test "$HAVE_XSERVER" = true ||
2076 test -n "$DISPLAY" ||
2078 for emacs_libX11 in /usr/lib/libX11.*; do break; done
2079 test "$emacs_libX11" != '/usr/lib/libX11.*'
2082 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2083 were found. You should install the relevant development files for X
2084 and for the toolkit you want, such as Gtk+ or Motif. Also make
2085 sure you have development files for image handling, i.e.
2086 tiff, gif, jpeg, png and xpm.
2087 If you are sure you want Emacs compiled without X window support, pass
2093 # Does the opsystem file prohibit the use of the GNU malloc?
2094 # Assume not, until told otherwise.
2098 [whether malloc is Doug Lea style],
2099 [emacs_cv_var_doug_lea_malloc],
2100 [emacs_cv_var_doug_lea_malloc=no
2101 dnl Hooks do not work with address sanitization.
2102 if test "$emacs_cv_sanitize_address" != yes; then
2105 [[#include <malloc.h>
2106 static void hook (void) {}]],
2107 [[malloc_set_state (malloc_get_state ());
2108 __after_morecore_hook = hook;
2109 __malloc_initialize_hook = hook;]])],
2110 [emacs_cv_var_doug_lea_malloc=yes])
2112 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2114 system_malloc=$emacs_cv_sanitize_address
2119 ## darwin ld insists on the use of malloc routines in the System framework.
2120 darwin | mingw32 | nacl | sol2-10) system_malloc=yes ;;
2121 cygwin) hybrid_malloc=yes;;
2124 if test "${system_malloc}" != yes && test "${doug_lea_malloc}" != yes \
2125 && test "${UNEXEC_OBJ}" = unexelf.o; then
2131 if test "${system_malloc}" = "yes"; then
2132 AC_DEFINE([SYSTEM_MALLOC], 1,
2133 [Define to 1 to use the system memory allocator, even if it is not
2137 (The GNU allocators don't work with this system configuration.)"
2139 elif test "$hybrid_malloc" = yes; then
2140 AC_DEFINE(HYBRID_MALLOC, 1,
2141 [Define to use gmalloc before dumping and the system malloc after.])
2144 GNU_MALLOC_reason="only before dumping"
2145 GMALLOC_OBJ=gmalloc.o
2148 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2149 VMLIMIT_OBJ=vm-limit.o
2151 AC_CHECK_HEADERS([sys/vlimit.h])
2152 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2155 [[extern char data_start[]; char ch;]],
2156 [[return data_start < &ch;]])],
2157 [emacs_cv_data_start=yes],
2158 [emacs_cv_data_start=no])])
2159 if test $emacs_cv_data_start = yes; then
2160 AC_DEFINE([HAVE_DATA_START], 1,
2161 [Define to 1 if data_start is the address of the start
2162 of the main data segment.])
2165 AC_SUBST([HYBRID_MALLOC])
2166 AM_CONDITIONAL([HYBRID_MALLOC_LIB], [test -n "$HYBRID_MALLOC"])
2167 AC_SUBST(GMALLOC_OBJ)
2168 AC_SUBST(VMLIMIT_OBJ)
2170 if test "$doug_lea_malloc" = "yes" && test "$hybrid_malloc" != yes; then
2171 if test "$GNU_MALLOC" = yes ; then
2173 (Using Doug Lea's new malloc from the GNU C Library.)"
2175 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2176 [Define to 1 if the system memory allocator is Doug Lea style,
2177 with malloc hooks and malloc_set_state.])
2179 ## Use mmap directly for allocating larger buffers.
2180 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2181 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2182 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2184 mingw32|gnu*) REL_ALLOC=no ;;
2188 if test x"${REL_ALLOC}" = x; then
2189 REL_ALLOC=${GNU_MALLOC}
2192 use_mmap_for_buffers=no
2194 cygwin|mingw32|irix6-5) use_mmap_for_buffers=yes ;;
2198 if test $use_mmap_for_buffers = yes; then
2199 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2203 LIBS="$LIBS_SYSTEM $LIBS"
2205 dnl FIXME replace main with a function we actually want from this library.
2206 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2208 dnl Check for the POSIX thread library.
2210 AC_CHECK_HEADERS_ONCE(pthread.h)
2211 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2212 AC_CACHE_CHECK([for pthread library],
2213 [emacs_cv_pthread_lib],
2214 [emacs_cv_pthread_lib=no
2216 for emacs_pthread_lib in 'none needed' -lpthread; do
2217 case $emacs_pthread_lib in
2218 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2222 [[#include <pthread.h>
2224 sigset_t old_mask, new_mask;
2225 void noop (void) {}]],
2226 [[pthread_t th = pthread_self ();
2228 status += pthread_create (&th, 0, 0, 0);
2229 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2230 status += pthread_kill (th, 0);
2231 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2232 || defined DOUG_LEA_MALLOC)
2233 /* Test for pthread_atfork only if gmalloc uses it,
2234 as older-style hosts like MirBSD 10 lack it. */
2235 status += pthread_atfork (noop, noop, noop);
2238 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2240 if test "$emacs_cv_pthread_lib" != no; then
2244 if test "$emacs_cv_pthread_lib" != no; then
2245 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2246 case $emacs_cv_pthread_lib in
2247 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2249 ac_cv_func_pthread_sigmask=yes
2250 # Some systems optimize for single-threaded programs by default, and
2251 # need special flags to disable these optimizations. For example, the
2252 # definition of 'errno' in <errno.h>.
2255 AC_DEFINE([_REENTRANT], 1,
2256 [Define to 1 if your system requires this in multithreaded code.]);;
2258 AC_DEFINE([_THREAD_SAFE], 1,
2259 [Define to 1 if your system requires this in multithreaded code.]);;
2263 AC_SUBST([LIB_PTHREAD])
2265 dnl Check for need for bigtoc support on IBM AIX
2269 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2271 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2272 *) gdb_cv_bigtoc=-bbigtoc ;;
2275 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2276 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2281 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2282 # is for the tests that follow. We set them back later on.
2284 REAL_CFLAGS="$CFLAGS"
2285 REAL_CPPFLAGS="$CPPFLAGS"
2288 if test "${HAVE_X11}" = "yes"; then
2289 DEFS="$C_SWITCH_X_SITE $DEFS"
2290 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2292 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2293 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2295 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2296 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2297 # but it's more convenient here to set LD_RUN_PATH since this
2298 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2299 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2300 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2304 if test "${opsys}" = "gnu-linux"; then
2305 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2306 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2307 [[XOpenDisplay ("foo");]])],
2308 [xgnu_linux_first_failure=no],
2309 [xgnu_linux_first_failure=yes])
2310 if test "${xgnu_linux_first_failure}" = "yes"; then
2311 OLD_CPPFLAGS="$CPPFLAGS"
2313 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2314 LIBS="$LIBS -b i486-linuxaout"
2315 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2316 [[XOpenDisplay ("foo");]])],
2317 [xgnu_linux_second_failure=no],
2318 [xgnu_linux_second_failure=yes])
2319 if test "${xgnu_linux_second_failure}" = "yes"; then
2320 # If we get the same failure with -b, there is no use adding -b.
2321 # So leave it out. This plays safe.
2324 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2325 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2328 CPPFLAGS=$OLD_CPPFLAGS
2335 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2336 # header files included from there.
2337 AC_MSG_CHECKING(for Xkb)
2338 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2339 #include <X11/XKBlib.h>]],
2340 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2341 emacs_xkb=yes, emacs_xkb=no)
2342 AC_MSG_RESULT($emacs_xkb)
2343 if test $emacs_xkb = yes; then
2344 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2347 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2348 XScreenNumberOfScreen)
2351 if test "${window_system}" = "x11"; then
2352 AC_MSG_CHECKING(X11 version 6)
2353 AC_CACHE_VAL(emacs_cv_x11_version_6,
2354 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2355 [[#if XlibSpecificationRelease < 6
2358 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2359 if test $emacs_cv_x11_version_6 = yes; then
2360 AC_MSG_RESULT(6 or newer)
2361 AC_DEFINE(HAVE_X11R6, 1,
2362 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2363 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2364 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2368 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2369 [Define if you have usable X11R6-style XIM support.])
2373 AC_MSG_RESULT(before 6)
2378 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2380 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2381 if test "${with_rsvg}" != "no"; then
2382 RSVG_REQUIRED=2.11.0
2383 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2385 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2386 AC_SUBST(RSVG_CFLAGS)
2389 if test $HAVE_RSVG = yes; then
2390 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2391 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2392 # Windows loads librsvg dynamically
2393 if test "${opsys}" = "mingw32"; then
2401 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2402 if test "${with_imagemagick}" != "no"; then
2403 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2404 ## 6.8.2 makes Emacs crash; see Bug#13867.
2405 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2406 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2407 AC_SUBST(IMAGEMAGICK_CFLAGS)
2408 AC_SUBST(IMAGEMAGICK_LIBS)
2410 if test $HAVE_IMAGEMAGICK = yes; then
2411 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2414 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2415 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2416 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers MagickAutoOrientImage)
2423 AC_CHECK_LIB(anl, getaddrinfo_a, HAVE_GETADDRINFO_A=yes)
2424 if test "${HAVE_GETADDRINFO_A}" = "yes"; then
2425 AC_DEFINE(HAVE_GETADDRINFO_A, 1,
2426 [Define to 1 if you have getaddrinfo_a for asynchronous DNS resolution.])
2427 GETADDRINFO_A_LIBS="-lanl"
2428 AC_SUBST(GETADDRINFO_A_LIBS)
2433 gtk_term_header=$term_header
2436 if test "${opsys}" != "mingw32"; then
2437 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2440 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2442 dnl Checks for libraries.
2443 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2444 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2445 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2446 AC_MSG_ERROR($GTK_PKG_ERRORS)
2448 if test "$pkg_check_gtk" = "yes"; then
2449 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2450 GTK_OBJ=emacsgtkfixed.o
2451 gtk_term_header=gtkutil.h
2452 USE_GTK_TOOLKIT="GTK3"
2453 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2454 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2455 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2456 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2457 [Define to 1 to disable Glib deprecation warnings.])
2461 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2465 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2468 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2470 dnl Checks for libraries.
2471 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2472 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2473 if test "$pkg_check_gtk" = "no" &&
2474 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2476 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2478 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2485 if test x"$pkg_check_gtk" = xyes; then
2488 CFLAGS="$CFLAGS $GTK_CFLAGS"
2489 LIBS="$GTK_LIBS $LIBS"
2490 dnl Try to compile a simple GTK program.
2491 AC_MSG_CHECKING([whether GTK compiles])
2495 [[/* Check the Gtk and Glib APIs. */
2496 #include <gtk/gtk.h>
2497 #include <glib-object.h>
2499 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2503 GtkSettings *gs = 0;
2504 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2505 strict C prohibits this. Use gtk_main_iteration to test that the
2506 libraries are there. */
2507 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2508 0, 0, 0, G_CALLBACK (callback), 0))
2509 gtk_main_iteration ();
2512 AC_MSG_RESULT([$GTK_COMPILES])
2513 if test "${GTK_COMPILES}" != "yes"; then
2515 if test "$USE_X_TOOLKIT" != "maybe"; then
2516 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2519 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2521 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2522 GTK_OBJ="gtkutil.o $GTK_OBJ"
2523 term_header=$gtk_term_header
2525 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2526 closing open displays. This is no problem if you just use
2527 one display, but if you use more than one and close one of them
2529 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2537 if test "${HAVE_GTK}" = "yes"; then
2539 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2540 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2541 if test "$with_toolkit_scroll_bars" != no; then
2542 with_toolkit_scroll_bars=yes
2545 dnl Check if we have the old file selection dialog declared and
2546 dnl in the link library. In 2.x it may be in the library,
2547 dnl but not declared if deprecated featured has been selected out.
2548 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2549 HAVE_GTK_FILE_SELECTION=no
2550 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2551 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2552 #include <gtk/gtk.h>])
2553 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2554 AC_CHECK_FUNCS(gtk_file_selection_new)
2557 dnl Same as above for gtk_handle_box.
2558 HAVE_GTK_HANDLE_BOX=no
2559 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2560 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2561 #include <gtk/gtk.h>])
2562 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2563 AC_CHECK_FUNCS(gtk_handle_box_new)
2566 dnl Same as above for gtk_tearoff_menu_item.
2567 HAVE_GTK_TEAROFF_MENU_ITEM=no
2568 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2569 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2570 #include <gtk/gtk.h>])
2571 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2572 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2575 dnl Check for functions introduced in 2.14 and later.
2576 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2577 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2578 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2579 gtk_orientable_set_orientation \
2580 gtk_window_set_has_resize_grip)
2582 term_header=gtkutil.h
2586 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2589 if test "$with_xwidgets" != "no"; then
2590 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2591 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2593 WEBKIT_REQUIRED=1.4.0
2594 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2595 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2596 HAVE_XWIDGETS=$HAVE_WEBKIT
2597 test $HAVE_XWIDGETS = yes ||
2598 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2600 XWIDGETS_OBJ=xwidget.o
2601 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2603 AC_SUBST(XWIDGETS_OBJ)
2608 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2609 dnl other platforms.
2612 if test "${with_dbus}" = "yes"; then
2613 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2614 if test "$HAVE_DBUS" = yes; then
2615 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2616 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2617 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2620 LIBS="$LIBS $DBUS_LIBS"
2621 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2622 dbus_type_is_valid \
2623 dbus_validate_bus_name \
2624 dbus_validate_path \
2625 dbus_validate_interface \
2626 dbus_validate_member)
2631 AC_SUBST(DBUS_CFLAGS)
2635 dnl GSettings has been tested under GNU/Linux only.
2637 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2638 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2639 if test "$HAVE_GSETTINGS" = "yes"; then
2641 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2643 LIBS="$LIBS $GSETTINGS_LIBS"
2644 AC_MSG_CHECKING([whether GSettings is in gio])
2647 [[/* Check that gsettings really is present. */
2648 #include <glib-object.h>
2649 #include <gio/gio.h>
2652 GSettings *settings;
2653 GVariant *val = g_settings_get_value (settings, "");
2655 [], HAVE_GSETTINGS=no)
2656 AC_MSG_RESULT([$HAVE_GSETTINGS])
2658 if test "$HAVE_GSETTINGS" = "yes"; then
2659 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2660 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2661 SETTINGS_LIBS="$GSETTINGS_LIBS"
2668 dnl GConf has been tested under GNU/Linux only.
2669 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2671 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2672 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2673 if test "$HAVE_GCONF" = yes; then
2674 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2675 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2676 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2677 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2681 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2682 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2683 if test "$HAVE_GOBJECT" = "yes"; then
2684 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2685 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2687 SAVE_CFLAGS="$CFLAGS"
2689 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2690 LIBS="$SETTINGS_LIBS $LIBS"
2691 CFLAGS="$SAVE_CFLAGS"
2694 AC_SUBST(SETTINGS_CFLAGS)
2695 AC_SUBST(SETTINGS_LIBS)
2698 dnl SELinux is available for GNU/Linux only.
2701 if test "${with_selinux}" = "yes"; then
2702 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2703 if test "$HAVE_LIBSELINUX" = yes; then
2704 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2705 LIBSELINUX_LIBS=-lselinux
2708 AC_SUBST(LIBSELINUX_LIBS)
2711 if test "${with_gnutls}" = "yes" ; then
2712 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2713 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2714 if test "${HAVE_GNUTLS}" = "yes"; then
2715 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2716 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2717 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2720 # Windows loads GnuTLS dynamically
2721 if test "${opsys}" = "mingw32"; then
2726 AC_SUBST(LIBGNUTLS_LIBS)
2727 AC_SUBST(LIBGNUTLS_CFLAGS)
2732 dnl MS Windows native file monitor is available for mingw32 only.
2733 case $with_file_notification,$opsys in
2735 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2736 this is only supported on MS-Windows native and MinGW32 builds.
2737 Consider using gfile instead.])
2739 w32,* | yes,mingw32)
2740 AC_CHECK_HEADER(windows.h)
2741 if test "$ac_cv_header_windows_h" = yes ; then
2742 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2743 NOTIFY_OBJ=w32notify.o
2744 NOTIFY_SUMMARY="yes (w32)"
2748 dnl inotify is available only on GNU/Linux.
2749 case $with_file_notification,$NOTIFY_OBJ in
2751 AC_CHECK_HEADER(sys/inotify.h)
2752 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2753 AC_CHECK_FUNC(inotify_init1)
2754 if test "$ac_cv_func_inotify_init1" = yes; then
2755 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2756 NOTIFY_OBJ=inotify.o
2757 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2762 dnl kqueue is available on BSD-like systems.
2763 case $with_file_notification,$NOTIFY_OBJ in
2765 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2766 if test "$HAVE_KQUEUE" = "yes"; then
2767 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2768 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2769 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2770 NOTIFY_LIBS=$KQUEUE_LIBS
2772 NOTIFY_SUMMARY="yes -lkqueue"
2774 AC_SEARCH_LIBS(kqueue, [])
2775 if test "$ac_cv_search_kqueue" != no; then
2776 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2778 NOTIFY_SUMMARY="yes (kqueue)"
2783 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2784 dnl has been added in glib 2.24. It has been tested under
2786 case $with_file_notification,$NOTIFY_OBJ in
2788 if test "${HAVE_NS}" = yes; then
2789 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2790 Consider kqueue instead.])
2792 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2793 if test "$HAVE_GFILENOTIFY" = "yes"; then
2794 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2795 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2796 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2797 NOTIFY_OBJ=gfilenotify.o
2798 NOTIFY_SUMMARY="yes -lgio (gfile)"
2803 case $with_file_notification,$NOTIFY_OBJ in
2804 yes,* | no,* | *,?*) ;;
2805 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2808 if test -n "$NOTIFY_OBJ"; then
2809 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2811 AC_SUBST(NOTIFY_CFLAGS)
2812 AC_SUBST(NOTIFY_LIBS)
2813 AC_SUBST(NOTIFY_OBJ)
2815 dnl Do not put whitespace before the #include statements below.
2816 dnl Older compilers (eg sunos4 cc) choke on it.
2819 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2820 if test "$with_xaw3d" != no; then
2821 AC_CACHE_VAL(emacs_cv_xaw3d,
2822 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2823 #include <X11/Intrinsic.h>
2824 #include <X11/Xaw3d/Simple.h>]],
2826 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2827 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2828 emacs_cv_xaw3d=no)])
2832 if test $emacs_cv_xaw3d = yes; then
2833 AC_MSG_CHECKING(for xaw3d)
2834 AC_MSG_RESULT([yes; using Lucid toolkit])
2838 AC_DEFINE(HAVE_XAW3D, 1,
2839 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2841 AC_MSG_CHECKING(for xaw3d)
2843 AC_MSG_CHECKING(for libXaw)
2844 AC_CACHE_VAL(emacs_cv_xaw,
2845 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2846 #include <X11/Intrinsic.h>
2847 #include <X11/Xaw/Simple.h>]],
2851 if test $emacs_cv_xaw = yes; then
2852 AC_MSG_RESULT([yes; using Lucid toolkit])
2855 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2856 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2858 AC_MSG_ERROR([No X toolkit could be found.
2859 If you are sure you want Emacs compiled without an X toolkit, pass
2861 to configure. Otherwise, install the development libraries for the toolkit
2862 that you want to use (e.g. Gtk+) and re-run configure.])
2867 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2871 if test "${USE_X_TOOLKIT}" != "none"; then
2872 AC_MSG_CHECKING(X11 toolkit version)
2873 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2874 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2875 [[#if XtSpecificationRelease < 6
2878 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2879 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2880 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2881 AC_MSG_RESULT(6 or newer)
2882 AC_DEFINE(HAVE_X11XTR6, 1,
2883 [Define to 1 if you have the X11R6 or newer version of Xt.])
2884 LIBXTR6="-lSM -lICE"
2886 ## Use libw.a along with X11R6 Xt.
2887 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2890 AC_MSG_RESULT(before 6)
2893 dnl If using toolkit, check whether libXmu.a exists.
2894 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2896 if test x$HAVE_X11XTR6 = xyes; then
2897 OTHERLIBS='-lXt -lSM -lICE'
2901 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2902 if test "X$LIBS" != "X$OLDLIBS"; then
2903 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2906 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2912 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2913 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2914 if test -d /usr/include/openmotif; then
2915 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2916 emacs_cv_openmotif=yes
2917 case "$canonical" in
2918 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2919 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2922 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2925 emacs_cv_openmotif=no
2927 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2928 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2929 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2932 Motif version prior to 2.1.
2934 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2935 if test $emacs_cv_motif_version_2_1 = yes; then
2936 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2937 if test x$emacs_cv_openmotif = xyes; then
2938 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2941 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2942 # We put this in CFLAGS temporarily to precede other -I options
2943 # that might be in CFLAGS temporarily.
2944 # We put this in CPPFLAGS where it precedes the other -I options.
2945 OLD_CPPFLAGS=$CPPFLAGS
2947 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2948 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2949 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2951 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2952 if test $emacs_cv_lesstif = yes; then
2953 # Make sure this -I option remains in CPPFLAGS after it is set
2954 # back to REAL_CPPFLAGS.
2955 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2956 # have those other -I options anyway. Ultimately, having this
2957 # directory ultimately in CPPFLAGS will be enough.
2958 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2959 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2962 CPPFLAGS=$OLD_CPPFLAGS
2965 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2966 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2969 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2970 dnl using Motif or Xaw3d is available, and unless
2971 dnl --with-toolkit-scroll-bars=no was specified.
2973 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2974 [Define to 1 if we should use toolkit scroll bars.])dnl
2975 USE_TOOLKIT_SCROLL_BARS=no
2976 if test "${with_toolkit_scroll_bars}" != "no"; then
2977 if test "${USE_X_TOOLKIT}" != "none"; then
2978 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2979 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2981 USE_TOOLKIT_SCROLL_BARS=yes
2982 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2983 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2984 USE_TOOLKIT_SCROLL_BARS=yes
2986 elif test "${HAVE_GTK}" = "yes"; then
2987 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2988 USE_TOOLKIT_SCROLL_BARS=yes
2989 elif test "${HAVE_NS}" = "yes"; then
2990 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2991 USE_TOOLKIT_SCROLL_BARS=yes
2992 elif test "${HAVE_W32}" = "yes"; then
2993 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2994 USE_TOOLKIT_SCROLL_BARS=yes
2998 dnl See if XIM is available.
2999 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3000 #include <X11/Xlib.h>
3001 #include <X11/Xresource.h>]],
3002 [[XIMProc callback;]])],
3004 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
3007 dnl '--with-xim' now controls only the initial value of use_xim at run time.
3009 if test "${with_xim}" != "no"; then
3010 AC_DEFINE(USE_XIM, 1,
3011 [Define to 1 if we should use XIM, if it is available.])
3015 if test "${HAVE_XIM}" != "no"; then
3017 if test "$GCC" = yes; then
3018 CFLAGS="$CFLAGS --pedantic-errors"
3020 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3021 #include <X11/Xlib.h>
3022 #include <X11/Xresource.h>]],
3028 XPointer *client_data;
3030 /* If we're not using GCC, it's probably not XFree86, and this is
3031 probably right, but we can't use something like --pedantic-errors. */
3032 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3033 char*, XIMProc, XPointer*);
3035 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3037 [emacs_cv_arg6_star=yes])
3038 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3039 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3040 either XPointer or XPointer*.])dnl
3041 if test "$emacs_cv_arg6_star" = yes; then
3042 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3044 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3049 ### Start of font-backend (under any platform) section.
3050 # (nothing here yet -- this is a placeholder)
3051 ### End of font-backend (under any platform) section.
3053 ### Start of font-backend (under X11) section.
3054 if test "${HAVE_X11}" = "yes"; then
3055 ## Use -lXft if available, unless '--with-xft=no'.
3057 if test "x${with_x}" = "xno"; then
3061 if test "$with_xft" != no; then
3062 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3063 with_xft=$HAVE_FONTCONFIG
3066 if test "x${with_xft}" != "xno"; then
3068 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3069 ## Because xftfont.c uses XRenderQueryExtension, we also
3070 ## need to link to -lXrender.
3072 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3073 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3074 OLD_CPPFLAGS="$CPPFLAGS"
3075 OLD_CFLAGS="$CFLAGS"
3077 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3078 CFLAGS="$CFLAGS $XFT_CFLAGS"
3079 XFT_LIBS="-lXrender $XFT_LIBS"
3080 LIBS="$XFT_LIBS $LIBS"
3081 AC_CHECK_HEADER(X11/Xft/Xft.h,
3082 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3083 [[#include <X11/X.h>]])
3085 if test "${HAVE_XFT}" = "yes"; then
3086 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3088 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3089 fi # "${HAVE_XFT}" = "yes"
3090 CPPFLAGS=$OLD_CPPFLAGS
3093 fi # "$HAVE_XFT" != no
3094 fi # "x${with_xft}" != "xno"
3096 ## We used to allow building with FreeType and without Xft.
3097 ## However, the ftx font backend driver is not in good shape.
3098 if test "$HAVE_XFT" != "yes"; then
3099 dnl For the "Does Emacs use" message at the end.
3103 dnl Strict linkers fail with
3104 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3105 dnl if -lfreetype is not specified.
3106 dnl The following is needed to set FREETYPE_LIBS.
3107 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3109 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3113 if test "${HAVE_FREETYPE}" = "yes"; then
3114 AC_DEFINE(HAVE_FREETYPE, 1,
3115 [Define to 1 if using the freetype and fontconfig libraries.])
3116 if test "${with_libotf}" != "no"; then
3117 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3118 if test "$HAVE_LIBOTF" = "yes"; then
3119 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3120 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3121 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3122 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3123 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3124 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3125 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3129 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3130 dnl Does the new font backend require it, or can it work without it?
3134 if test "${HAVE_LIBOTF}" = yes; then
3135 if test "${with_m17n_flt}" != "no"; then
3136 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3137 if test "$HAVE_M17N_FLT" = "yes"; then
3138 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3149 ### End of font-backend (under X11) section.
3151 AC_SUBST(FREETYPE_CFLAGS)
3152 AC_SUBST(FREETYPE_LIBS)
3153 AC_SUBST(FONTCONFIG_CFLAGS)
3154 AC_SUBST(FONTCONFIG_LIBS)
3155 AC_SUBST(LIBOTF_CFLAGS)
3156 AC_SUBST(LIBOTF_LIBS)
3157 AC_SUBST(M17N_FLT_CFLAGS)
3158 AC_SUBST(M17N_FLT_LIBS)
3161 if test "${HAVE_X11}" = "yes"; then
3162 if test "${with_cairo}" != "no"; then
3163 CAIRO_REQUIRED=1.12.0
3164 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3165 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3166 if test $HAVE_CAIRO = yes; then
3167 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3169 AC_MSG_ERROR([cairo requested but not found.])
3172 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3173 LIBS="$LIBS $CAIRO_LIBS"
3174 AC_SUBST(CAIRO_CFLAGS)
3175 AC_SUBST(CAIRO_LIBS)
3179 if test "${HAVE_X11}" = "yes"; then
3180 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3181 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3182 if test "${HAVE_XCB}" = "yes"; then
3183 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3184 if test "${HAVE_X11_XCB}" = "yes"; then
3185 AC_DEFINE(USE_XCB, 1,
3186 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3187 X11/XCB programming.])
3188 XCB_LIBS="-lX11-xcb -lxcb"
3194 ### Use -lXpm if available, unless '--with-xpm=no'.
3195 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3196 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3197 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3198 ### LDFLAGS) accordingly.
3201 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3202 if test "${with_xpm}" != "no"; then
3203 SAVE_CPPFLAGS="$CPPFLAGS"
3204 SAVE_LDFLAGS="$LDFLAGS"
3205 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3206 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3207 AC_CHECK_HEADER(X11/xpm.h,
3208 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3209 if test "${HAVE_XPM}" = "yes"; then
3210 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3211 AC_EGREP_CPP(no_return_alloc_pixels,
3212 [#include "X11/xpm.h"
3213 #ifndef XpmReturnAllocPixels
3214 no_return_alloc_pixels
3216 ], HAVE_XPM=no, HAVE_XPM=yes)
3218 if test "${HAVE_XPM}" = "yes"; then
3219 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3223 CPPFLAGS="$SAVE_CPPFLAGS"
3224 LDFLAGS="$SAVE_LDFLAGS"
3229 if test "${HAVE_XPM}" = "yes"; then
3230 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3235 if test "${HAVE_X11}" = "yes"; then
3236 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3237 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3239 if test "${with_xpm}" != "no"; then
3240 AC_CHECK_HEADER(X11/xpm.h,
3241 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3242 if test "${HAVE_XPM}" = "yes"; then
3243 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3244 AC_EGREP_CPP(no_return_alloc_pixels,
3245 [#include "X11/xpm.h"
3246 #ifndef XpmReturnAllocPixels
3247 no_return_alloc_pixels
3249 ], HAVE_XPM=no, HAVE_XPM=yes)
3251 if test "${HAVE_XPM}" = "yes"; then
3259 if test "${HAVE_XPM}" = "yes"; then
3260 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3262 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3263 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3268 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3269 ### slightly different requirements wrt image libraries (it doesn't
3270 ### use -lXpm because it loads the xpm shared library dynamically at
3272 if test "${opsys}" = "mingw32"; then
3273 if test "${with_xpm}" != "no"; then
3274 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3278 if test "${HAVE_XPM}" = "yes"; then
3279 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3285 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3288 if test "${with_jpeg}" != "no"; then
3289 AC_CACHE_CHECK([for jpeglib 6b or later],
3292 for emacs_cv_jpeglib in yes -ljpeg no; do
3293 case $emacs_cv_jpeglib in
3296 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3300 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3301 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3302 #include <jpeglib.h>
3304 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3305 struct jpeg_decompress_struct cinfo;
3308 jpeg_create_decompress (&cinfo);
3309 WARNMS (&cinfo, JWRN_JPEG_EOF);
3310 jpeg_destroy_decompress (&cinfo);
3312 [emacs_link_ok=yes],
3315 test $emacs_link_ok = yes && break
3317 if test "$emacs_cv_jpeglib" != no; then
3319 AC_DEFINE([HAVE_JPEG], 1,
3320 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3321 ### mingw32 doesn't use -ljpeg, since it loads the library
3322 ### dynamically when needed, and doesn't want a run-time
3323 ### dependency on the jpeglib DLL.
3324 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3325 && LIBJPEG=$emacs_cv_jpeglib
3332 if test "${with_zlib}" != "no"; then
3334 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3336 case $ac_cv_search_inflateEnd in
3337 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3340 if test "${HAVE_ZLIB}" = "yes"; then
3341 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3342 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3343 if test "${opsys}" = "mingw32"; then
3349 ### Dynamic modules support
3354 if test "${with_modules}" != "no"; then
3355 if test "$opsys" = "gnu-linux"; then
3357 MODULES_SUFFIX=".so"
3359 elif test "$opsys" = "cygwin"; then
3360 MODULES_SUFFIX=".dll"
3362 elif test "$opsys" = "darwin"; then
3363 MODULES_SUFFIX=".so"
3365 elif test "$opsys" = "mingw32"; then
3366 MODULES_SUFFIX=".dll"
3369 # BSD system have dlopen in the libc
3370 AC_CHECK_FUNC(dlopen, [MODULES_SUFFIX=".so"]
3371 [HAVE_MODULES=yes], [])
3374 if test "${HAVE_MODULES}" = no; then
3375 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3378 LIBS="$LIBS $LIBMODULES"
3379 AC_CHECK_FUNCS([dladdr dlfunc])
3384 if test "${HAVE_MODULES}" = yes; then
3385 MODULES_OBJ="dynlib.o emacs-module.o"
3386 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3387 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3388 [System extension for dynamic libraries])
3390 AC_SUBST(MODULES_OBJ)
3391 AC_SUBST(LIBMODULES)
3393 ### Use -lpng if available, unless '--with-png=no'.
3397 if test "${NS_IMPL_COCOA}" = yes; then
3399 elif test "${with_png}" != no; then
3400 # mingw32 loads the library dynamically.
3401 if test "$opsys" = mingw32; then
3402 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3403 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3404 AC_MSG_CHECKING([for png])
3405 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3406 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3407 # libpng-config does not work; configure by hand.
3408 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3409 # in /usr/include/libpng.
3410 if test -r /usr/include/libpng/png.h &&
3411 test ! -r /usr/include/png.h; then
3412 png_cflags=-I/usr/include/libpng
3420 CFLAGS="$CFLAGS $png_cflags"
3421 LIBS="$png_libs -lz -lm $LIBS"
3423 [AC_LANG_PROGRAM([[#include <png.h>]],
3424 [[return !png_get_channels (0, 0);]])],
3426 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3428 # $LIBPNG requires explicit -lz in some cases.
3429 # We don't know what those cases are, exactly, so play it safe and
3430 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3431 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3432 LIBPNG="$LIBPNG -lz"
3436 AC_MSG_RESULT([$HAVE_PNG])
3439 if test $HAVE_PNG = yes; then
3440 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3443 CFLAGS="$CFLAGS $PNG_CFLAGS"
3444 AC_CHECK_DECL([png_longjmp],
3446 [AC_DEFINE([PNG_DEPSTRUCT], [],
3447 [Define to empty to suppress deprecation warnings when building
3448 with --enable-gcc-warnings and with libpng versions before 1.5,
3449 which lack png_longjmp.])],
3455 AC_SUBST(PNG_CFLAGS)
3457 ### Use -ltiff if available, unless '--with-tiff=no'.
3458 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3461 if test "${opsys}" = "mingw32"; then
3462 if test "${with_tiff}" != "no"; then
3463 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3465 if test "${HAVE_TIFF}" = "yes"; then
3466 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3468 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3469 if test "${with_tiff}" != "no"; then
3470 AC_CHECK_HEADER(tiffio.h,
3472 # At least one tiff package requires the jpeg library.
3473 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3474 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3477 if test "${HAVE_TIFF}" = "yes"; then
3478 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3479 dnl FIXME -lz -lm, as per libpng?
3485 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3486 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3489 if test "${opsys}" = "mingw32"; then
3490 if test "${with_gif}" != "no"; then
3491 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3493 if test "${HAVE_GIF}" = "yes"; then
3494 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3496 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3497 || test "${HAVE_W32}" = "yes"; then
3498 AC_CHECK_HEADER(gif_lib.h,
3499 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3500 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3501 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3502 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3504 if test "$HAVE_GIF" = yes; then
3506 elif test "$HAVE_GIF" = maybe; then
3507 # If gif_lib.h but no libgif, try libungif.
3508 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3509 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3512 if test "${HAVE_GIF}" = "yes"; then
3513 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3518 dnl Check for required libraries.
3519 if test "${HAVE_X11}" = "yes"; then
3522 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3523 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3524 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3525 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3526 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3527 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3528 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3529 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3530 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3531 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3533 if test "X${MISSING}" != X; then
3534 AC_MSG_ERROR([The following required libraries were not found:
3536 Maybe some development libraries/packages are missing?
3537 If you don't want to link with them give
3539 as options to configure])
3543 ### Use -lgpm if available, unless '--with-gpm=no'.
3546 if test "${with_gpm}" != "no"; then
3547 AC_CHECK_HEADER(gpm.h,
3548 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3550 if test "${HAVE_GPM}" = "yes"; then
3551 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3557 dnl Check for malloc/malloc.h on darwin
3558 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3561 ### Use NeXTstep API to implement GUI.
3562 if test "${HAVE_NS}" = "yes"; then
3563 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3564 if test "${NS_IMPL_COCOA}" = "yes"; then
3565 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3567 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3568 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3569 if test $NS_GNUSTEP_CONFIG != yes; then
3570 # See also .m.o rule in src/Makefile.in. */
3571 # FIXME: are all these flags really needed? Document here why. */
3572 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3573 ## Extra CFLAGS applied to src/*.m files.
3574 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3580 ### Use session management (-lSM -lICE) if available
3583 if test "${HAVE_X11}" = "yes"; then
3584 AC_CHECK_HEADER(X11/SM/SMlib.h,
3585 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3587 if test "${HAVE_X_SM}" = "yes"; then
3588 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3594 ### Use XRandr (-lXrandr) if available
3596 if test "${HAVE_X11}" = "yes"; then
3597 XRANDR_REQUIRED=1.2.2
3598 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3599 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3600 if test $HAVE_XRANDR = no; then
3601 # Test old way in case pkg-config doesn't have it (older machines).
3602 # Include Xrender.h by hand to work around bug in older Xrandr.h
3603 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3604 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3605 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3606 [], [AC_INCLUDES_DEFAULT
3607 #include <X11/extensions/Xrender.h>])
3608 if test $HAVE_XRANDR = yes; then
3609 XRANDR_LIBS=-lXrandr
3612 if test $HAVE_XRANDR = yes; then
3613 SAVE_CFLAGS="$CFLAGS"
3615 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3616 LIBS="$XRANDR_LIBS $LIBS"
3617 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3618 CFLAGS="$SAVE_CFLAGS"
3621 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3624 AC_SUBST(XRANDR_CFLAGS)
3625 AC_SUBST(XRANDR_LIBS)
3627 ### Use Xinerama (-lXinerama) if available
3629 if test "${HAVE_X11}" = "yes"; then
3630 XINERAMA_REQUIRED=1.0.2
3631 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3632 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3633 if test $HAVE_XINERAMA = no; then
3634 # Test old way in case pkg-config doesn't have it (older machines).
3635 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3636 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3637 if test $HAVE_XINERAMA = yes; then
3638 XINERAMA_LIBS=-lXinerama
3641 if test $HAVE_XINERAMA = yes; then
3642 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3645 AC_SUBST(XINERAMA_CFLAGS)
3646 AC_SUBST(XINERAMA_LIBS)
3648 ### Use Xfixes (-lXfixes) if available
3650 if test "${HAVE_X11}" = "yes"; then
3651 XFIXES_REQUIRED=4.0.0
3652 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3653 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3654 if test $HAVE_XFIXES = no; then
3655 # Test old way in case pkg-config doesn't have it (older machines).
3656 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3657 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3658 if test $HAVE_XFIXES = yes; then
3659 XFIXES_LIBS=-lXfixes
3662 if test $HAVE_XFIXES = yes; then
3663 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3666 AC_SUBST(XFIXES_CFLAGS)
3667 AC_SUBST(XFIXES_LIBS)
3669 ### Use libxml (-lxml2) if available
3670 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3672 if test "${with_xml2}" != "no"; then
3673 ### I'm not sure what the version number should be, so I just guessed.
3674 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3675 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3676 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3677 SAVE_CPPFLAGS="$CPPFLAGS"
3678 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3679 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3680 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3682 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3686 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3687 AC_CHECK_HEADER(libxml/HTMLparser.h,
3688 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3689 [#include <libxml/HTMLparser.h>])])
3690 CPPFLAGS="$SAVE_CPPFLAGS"
3691 if test "${HAVE_LIBXML2}" = "yes"; then
3692 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3693 LIBXML2_LIBS="-lxml2"
3696 if test "${HAVE_LIBXML2}" = "yes"; then
3697 if test "${opsys}" != "mingw32"; then
3698 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3703 if test "${HAVE_LIBXML2}" = "yes"; then
3704 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3711 AC_SUBST(LIBXML2_LIBS)
3712 AC_SUBST(LIBXML2_CFLAGS)
3714 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3715 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3716 if test "${opsys}" = "mingw32"; then
3717 emacs_cv_netdb_declares_h_errno=yes
3719 AC_CACHE_CHECK(whether netdb declares h_errno,
3720 emacs_cv_netdb_declares_h_errno,
3721 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3722 [[return h_errno;]])],
3723 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3724 if test $emacs_cv_netdb_declares_h_errno = yes; then
3725 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3728 # Check for mail-locking functions in a "mail" library. Probably this should
3729 # have the same check as for liblockfile below.
3730 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3731 if test $have_mail = yes; then
3733 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3736 LIBS="$LIBS_MAIL $LIBS"
3737 AC_CHECK_FUNCS(touchlock)
3742 dnl Debian, at least:
3743 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3744 if test $have_lockfile = yes; then
3745 LIBS_MAIL=-llockfile
3746 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3748 # If we have the shared liblockfile, assume we must use it for mail
3749 # locking (e.g. Debian). If we couldn't link against liblockfile
3750 # (no liblockfile.a installed), ensure that we don't need to.
3751 dnl This works for files generally, not just executables.
3752 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3753 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3754 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3755 if test $ac_cv_prog_liblockfile = yes; then
3756 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3757 This probably means that movemail could lose mail.
3758 There may be a 'development' package to install containing liblockfile.])
3761 AC_CHECK_HEADERS_ONCE(maillock.h)
3764 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3765 ## interlock access to the mail spool. The alternative is a lock file named
3766 ## /usr/spool/mail/$USER.lock.
3769 aix4-2) mail_lock="lockf" ;;
3771 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3773 ## On GNU/Linux systems, both methods are used by various mail programs.
3774 ## I assume most people are using newer mailers that have heard of flock.
3775 ## Change this if you need to.
3776 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3777 ## configure gets the right answers, and that means *NOT* using flock.
3778 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3779 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3780 ## Debian maintainer hasn't provided a clean fix for Emacs.
3781 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3782 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3783 ## correct logic. -- fx
3784 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3785 ## liblockfile is a Free Software replacement for libmail, used on
3786 ## Debian systems and elsewhere. -rfr.
3789 if test $have_mail = yes || test $have_lockfile = yes; then
3790 test $ac_cv_header_maillock_h = yes && mail_lock=no
3795 mail_lock="none-needed" ;;
3799 case "$mail_lock" in
3800 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3802 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3806 *) BLESSMAIL_TARGET="need-blessmail" ;;
3808 AC_SUBST(BLESSMAIL_TARGET)
3811 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3812 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3813 getrusage get_current_dir_name \
3814 lrand48 random rint \
3815 select getpagesize setlocale newlocale \
3816 getrlimit setrlimit shutdown getaddrinfo \
3817 pthread_sigmask strsignal setitimer \
3818 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3820 getpwent endpwent getgrent endgrent \
3821 cfmakeraw cfsetspeed copysign __executable_start log2)
3824 dnl No need to check for posix_memalign if aligned_alloc works.
3825 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3826 AC_CHECK_DECLS([aligned_alloc], [], [], [[#include <stdlib.h>]])
3828 dnl Cannot use AC_CHECK_FUNCS
3829 AC_CACHE_CHECK([for __builtin_unwind_init],
3830 emacs_cv_func___builtin_unwind_init,
3831 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3832 emacs_cv_func___builtin_unwind_init=yes,
3833 emacs_cv_func___builtin_unwind_init=no)])
3834 if test $emacs_cv_func___builtin_unwind_init = yes; then
3835 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3836 [Define to 1 if you have the '__builtin_unwind_init' function.])
3839 AC_CHECK_HEADERS_ONCE(sys/un.h)
3844 AC_CHECK_FUNCS(grantpt)
3846 # PTY-related GNU extensions.
3847 AC_CHECK_FUNCS(getpt posix_openpt)
3849 # Check this now, so that we will NOT find the above functions in ncurses.
3850 # That is because we have not set up to link ncurses in lib-src.
3851 # It's better to believe a function is not available
3852 # than to expect to find it in ncurses.
3853 # Also we need tputs and friends to be able to build at all.
3854 AC_MSG_CHECKING([for library containing tputs])
3855 # Run a test program that contains a call to tputs, a call that is
3856 # never executed. This tests whether a pre-'main' dynamic linker
3857 # works with the library. It's too much trouble to actually call
3858 # tputs in the test program, due to portability hassles. When
3859 # cross-compiling, assume the test program will run if it links.
3860 AC_DEFUN([tputs_link_source], [
3862 [[extern void tputs (const char *, int, int (*)(int));
3863 int main (int argc, char **argv)
3866 tputs (argv[0], 0, 0);
3870 if test "${opsys}" = "mingw32"; then
3873 # Maybe curses should be tried earlier?
3874 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3875 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3877 if test -z "$tputs_library"; then
3881 LIBS_TERMCAP=-l$tputs_library
3883 LIBS="$LIBS_TERMCAP $LIBS"
3885 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3886 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3888 if test "X$msg" != Xno; then
3893 AC_MSG_RESULT([$msg])
3894 if test "X$msg" = Xno; then
3895 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3896 The following libraries were tried (in order):
3897 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3898 Please try installing whichever of these libraries is most appropriate
3899 for your system, together with its header files.
3900 For example, a libncurses-dev(el) or similar package.])
3903 ## Use termcap instead of terminfo?
3904 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3906 ## FIXME? In the cases below where we unconditionally set
3907 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3908 ## if that was found above to have tputs.
3909 ## Should we use the gnu* logic everywhere?
3911 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3912 ## The ncurses library has been moved out of the System framework in
3913 ## Mac OS X 10.2. So if configure detects it, set the command-line
3914 ## option to use it.
3915 darwin) LIBS_TERMCAP="-lncurses" ;;
3917 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3920 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3921 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3922 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3923 [[#if __FreeBSD_version < 400000
3926 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3928 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3930 if test $emacs_cv_freebsd_terminfo = yes; then
3931 LIBS_TERMCAP="-lncurses"
3934 LIBS_TERMCAP="-ltermcap"
3944 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3946 LIBS_TERMCAP="-ltermcap"
3950 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3952 ## hpux: Make sure we get select from libc rather than from libcurses
3953 ## because libcurses on HPUX 10.10 has a broken version of select.
3954 ## We used to use -lc -lcurses, but this may be cleaner.
3955 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3956 # set that way, now it uses the default). Isn't this a contradiction?
3957 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3961 TERMCAP_OBJ=tparam.o
3962 if test $TERMINFO = yes; then
3963 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3964 TERMCAP_OBJ=terminfo.o
3966 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3967 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3969 AC_SUBST(LIBS_TERMCAP)
3970 AC_SUBST(TERMCAP_OBJ)
3972 # GNU/Linux-specific timer functions.
3973 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3975 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3977 [[timerfd_create (CLOCK_REALTIME,
3978 TFD_CLOEXEC | TFD_NONBLOCK);
3979 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3980 [emacs_cv_have_timerfd=yes],
3981 [emacs_cv_have_timerfd=no])])
3982 if test "$emacs_cv_have_timerfd" = yes; then
3983 AC_DEFINE([HAVE_TIMERFD], 1,
3984 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3987 # Alternate stack for signal handlers.
3988 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3989 [emacs_cv_alternate_stack],
3991 [AC_LANG_PROGRAM([[#include <signal.h>
3994 struct sigaction sa;
3995 ss.ss_sp = malloc (SIGSTKSZ);
3996 ss.ss_size = SIGSTKSZ;
3997 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3998 sigaltstack (&ss, 0);
3999 sigaction (SIGSEGV, &sa, 0);]])],
4000 [emacs_cv_alternate_stack=yes],
4001 [emacs_cv_alternate_stack=no])])
4003 # Do we have res_init, for detecting changes in /etc/resolv.conf?
4004 # On Darwin, res_init appears not to be useful: see bug#562 and
4005 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
4008 if test $opsys != darwin; then
4010 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
4011 #include <arpa/nameser.h>
4012 #include <resolv.h>]],
4013 [[return res_init();]])],
4014 have_res_init=yes, have_res_init=no)
4015 if test "$have_res_init" = no; then
4017 LIBS="$LIBS -lresolv"
4018 AC_MSG_CHECKING(for res_init with -lresolv)
4019 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
4020 #include <arpa/nameser.h>
4021 #include <resolv.h>]],
4022 [[return res_init();]])],
4023 have_res_init=yes, have_res_init=no)
4024 AC_MSG_RESULT($have_res_init)
4025 if test "$have_res_init" = yes ; then
4031 if test "$have_res_init" = yes; then
4032 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
4036 # Do we need the Hesiod library to provide the support routines?
4037 dnl FIXME? Should we be skipping this on Darwin too?
4039 if test "$with_hesiod" != no ; then
4040 # Don't set $LIBS here -- see comments above. FIXME which comments?
4041 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4042 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4043 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4044 if test "$resolv" = yes ; then
4049 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4050 hesiod=yes, :, $RESOLVLIB)])
4052 if test x"$hesiod" = xyes; then
4058 # Do we need libresolv (due to res_init or Hesiod)?
4059 if test "$resolv" = yes && test $opsys != darwin; then
4066 # These tell us which Kerberos-related libraries to use.
4073 if test "${with_kerberos}" != no; then
4075 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4076 if test $have_com_err = yes; then
4077 COM_ERRLIB=-lcom_err
4078 LIBS="$COM_ERRLIB $LIBS"
4080 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4081 if test $have_crypto = yes; then
4083 LIBS="$CRYPTOLIB $LIBS"
4085 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4086 if test $have_k5crypto = yes; then
4087 CRYPTOLIB=-lk5crypto
4088 LIBS="$CRYPTOLIB $LIBS"
4090 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4091 if test $have_krb5=yes; then
4093 LIBS="$KRB5LIB $LIBS"
4095 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4096 if test "${with_kerberos5}" = no; then
4097 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4098 if test $have_des425 = yes; then
4100 LIBS="$DESLIB $LIBS"
4102 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4103 if test $have_des = yes; then
4105 LIBS="$DESLIB $LIBS"
4108 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4109 if test $have_krb4 = yes; then
4111 LIBS="$KRB4LIB $LIBS"
4113 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4114 if test $have_krb = yes; then
4116 LIBS="$KRB4LIB $LIBS"
4121 if test "${with_kerberos5}" != no; then
4122 AC_CHECK_HEADERS(krb5.h,
4123 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4124 [#include <krb5.h>])])
4126 AC_CHECK_HEADERS(krb.h,,
4127 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4128 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4130 AC_CHECK_HEADERS(com_err.h)
4134 AC_SUBST(COM_ERRLIB)
4140 AC_CHECK_HEADERS(valgrind/valgrind.h)
4142 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4144 AC_CHECK_FUNCS_ONCE(tzset)
4147 AC_CHECK_FUNC(socket, , ok_so_far=no)
4148 if test $ok_so_far = yes; then
4149 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4151 if test $ok_so_far = yes; then
4152 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4154 if test $ok_so_far = yes; then
4155 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4156 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4157 [Define to 1 if you have inet sockets.])
4162 AC_CHECK_FUNCS(snprintf)
4164 dnl Check for glib. This differs from other library checks in that
4165 dnl Emacs need not link to glib unless some other library is already
4166 dnl linking to glib. Although glib provides no facilities that Emacs
4167 dnl needs for its own purposes, when glib is present Emacs needs to
4168 dnl use primitives like g_main_context_query to avoid clashing with
4169 dnl glib at a low level.
4171 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4175 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4176 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4177 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4178 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4179 AC_MSG_CHECKING([whether GLib is linked in])
4180 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4183 [[g_print ("Hello world");]])],
4186 AC_MSG_RESULT([$links_glib])
4187 if test "${links_glib}" = "yes"; then
4188 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4189 if test "$HAVE_NS" = no;then
4197 dnl Adapted from Haible's version.
4198 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4199 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4200 [[char* cs = nl_langinfo(CODESET);]])],
4201 emacs_cv_langinfo_codeset=yes,
4202 emacs_cv_langinfo_codeset=no)
4204 if test $emacs_cv_langinfo_codeset = yes; then
4205 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4206 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4211 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4212 dnl how the tty code is related to POSIX and/or other versions of termios.
4213 dnl The following looks like a useful start.
4215 dnl AC_SYS_POSIX_TERMIOS
4216 dnl if test $ac_cv_sys_posix_termios = yes; then
4217 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4218 dnl and macros for terminal control.])
4219 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4222 dnl Turned on June 1996 supposing nobody will mind it.
4223 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4224 if test "${opsys}" != "mingw32"; then
4225 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4226 in the full name stands for the login id.])
4229 dnl Everybody supports this, except MS.
4230 dnl Seems like the kind of thing we should be testing for, though.
4231 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4232 if test "${opsys}" != "mingw32"; then
4233 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4236 dnl Everybody supports this, except MS-DOS.
4237 dnl Seems like the kind of thing we should be testing for, though.
4238 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4239 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4240 4.2-compatible sockets.])
4242 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4244 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4245 a null file, or a data sink.])
4246 if test "${opsys}" = "mingw32"; then
4247 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4249 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4252 if test "${opsys}" = "mingw32"; then
4257 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4258 dnl This is for MinGW, and is used in test/Makefile.in.
4259 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4260 dnl decides that a command-line argument to be passed to a MinGW program
4261 dnl is a PATH-style list of directories. But that heuristics plays it
4262 dnl safe, and only does the replacement when it is _absolutely_ sure it
4263 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4264 dnl which breaks in-tree builds. So we do this manually instead.
4265 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4266 dnl be computed as ':' in MSYS Bash.
4269 dnl Everybody supports this, except MS-DOS.
4270 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4272 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4275 AC_DEFINE(DIRECTORY_SEP, ['/'],
4276 [Character that separates directories in a file name.])
4278 if test "${opsys}" = "mingw32"; then
4279 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4280 [Returns true if character is a device separator.])
4282 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4283 [Returns true if character is a directory separator.])
4285 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4286 [Returns true if character is any form of separator.])
4288 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4289 [Returns true if character is a device separator.])
4291 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4292 [Returns true if character is a directory separator.])
4294 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4295 [Returns true if character is any form of separator.])
4298 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4302 dnl Unfortunately without libXmu we cannot support EditRes.
4303 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4304 AC_DEFINE(NO_EDITRES, 1)
4309 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4310 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4311 AC_DEFINE(NO_EDITRES, 1)
4317 irix6-5 | sol2* | unixware )
4318 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4319 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4320 dnl need the constant to dimension an array. So wire in the appropriate
4322 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4326 emacs_broken_SIGIO=no
4329 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4330 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4331 hpux* | irix6-5 | nacl | openbsd | sol2* | unixware )
4332 emacs_broken_SIGIO=yes
4336 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4337 dnl the way this system works, libc functions that return malloced
4338 dnl memory use the libc malloc implementation. Calling xfree or
4339 dnl xrealloc on the results of such functions results in a crash.
4341 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4342 dnl but that does not currently work on this system.
4344 dnl It is possible to completely override the malloc implementation on
4345 dnl AIX, but that involves putting the malloc functions in a shared
4346 dnl library and setting the MALLOCTYPE environment variable to point to
4347 dnl that shared library.
4349 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4350 dnl to avoid a crash just use the Emacs implementation for that function.
4352 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4353 dnl of this file, so that we do not check for get_current_dir_name
4354 dnl on AIX. But that might be fragile if something else ends
4355 dnl up testing for get_current_dir_name as a dependency.
4356 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4357 get_current_dir_name should not be used.])
4361 dnl Circumvent a bug in FreeBSD. In the following sequence of
4362 dnl writes/reads on a PTY, read(2) returns bogus data:
4364 dnl write(2) 1022 bytes
4365 dnl write(2) 954 bytes, get EAGAIN
4366 dnl read(2) 1024 bytes in process_read_output
4367 dnl read(2) 11 bytes in process_read_output
4369 dnl That is, read(2) returns more bytes than have ever been written
4370 dnl successfully. The 1033 bytes read are the 1022 bytes written
4371 dnl successfully after processing (for example with CRs added if the
4372 dnl terminal is set up that way which it is here). The same bytes will
4373 dnl be seen again in a later read(2), without the CRs.
4374 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4375 work around an issue when reading from a PTY.])
4381 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4382 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4387 darwin | dragonfly | freebsd | netbsd | openbsd )
4388 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4389 close a pty to make it a controlling terminal (it is already a
4390 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4394 dnl FIXME Surely we can test for this rather than hard-code it.
4396 netbsd | openbsd) sound_device="/dev/audio" ;;
4397 *) sound_device="/dev/dsp" ;;
4401 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4402 [Name of the default sound device.])
4405 dnl Emacs can read input using SIGIO and buffering characters itself,
4406 dnl or using CBREAK mode and making C-g cause SIGINT.
4407 dnl The choice is controlled by the variable interrupt_input.
4409 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4411 dnl Emacs uses the presence of the USABLE_SIGIO macro
4412 dnl to indicate whether or not signal-driven I/O is possible. It uses
4413 dnl INTERRUPT_INPUT to decide whether to use it by default.
4415 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4416 dnl CBREAK mode has two disadvantages
4417 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4418 dnl I hear that in system V this problem does not exist.
4419 dnl 2) Control-G causes output to be discarded.
4420 dnl I do not know whether this can be fixed in system V.
4422 dnl Another method of doing input is planned but not implemented.
4423 dnl It would have Emacs fork off a separate process
4424 dnl to read the input and send it to the true Emacs process
4427 darwin | gnu-linux | gnu-kfreebsd )
4428 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4433 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4434 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4435 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4436 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4437 dnl taking float or double parameters.
4439 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4440 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4441 file defines 'NeedWidePrototypes' as 'NO'.])
4446 dnl Used in process.c, this must be a loop, even if it only runs once.
4447 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4448 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4449 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4450 dnl trying suffixes 0-16.
4451 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4452 first PTY, if PTYs are supported.])
4453 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4454 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4455 end of a PTY, if non-standard.])
4456 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4457 end of a PTY, if non-standard.])
4461 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4462 dnl You allocate a pty by opening /dev/ptc to get the master side.
4463 dnl To get the name of the slave side, you just ttyname() the master side.
4464 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4465 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4469 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4470 dnl multi-line AC_DEFINEs are hard. :(
4471 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)])
4472 AC_DEFINE(PTY_NAME_SPRINTF, [])
4473 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4477 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4480 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4482 if test "x$ac_cv_func_grantpt" = xyes; then
4483 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4484 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4485 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4486 dnl to prevent sigchld_handler from intercepting the child's death.
4487 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); }])
4488 dnl if HAVE_POSIX_OPENPT
4489 if test "x$ac_cv_func_posix_openpt" = xyes; then
4490 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4491 AC_DEFINE(PTY_NAME_SPRINTF, [])
4493 elif test "x$ac_cv_func_getpt" = xyes; then
4494 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4495 AC_DEFINE(PTY_NAME_SPRINTF, [])
4497 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4500 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4505 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4506 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4507 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4511 dnl It looks like this cannot be right, because it is not a loop.
4512 dnl However, process.c actually does this:
4518 dnl which presumably makes it OK, since irix == sgi (?).
4519 dnl FIXME it seems like this special treatment is unnecessary?
4520 dnl Why can't irix use a single-trip loop like eg cygwin?
4521 AC_DEFINE(PTY_ITERATION, [])
4522 dnl Not used, because PTY_ITERATION is defined.
4523 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4524 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); }])
4525 dnl No need to get the pty name at all.
4526 AC_DEFINE(PTY_NAME_SPRINTF, [])
4527 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4528 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4532 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4533 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4534 dnl from intercepting that death. If any child but grantpt's should die
4535 dnl within, it should be caught after sigrelse(2).
4536 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4537 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4541 dnl Comments are as per sol2*.
4542 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4543 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); }])
4550 dnl This change means that we don't loop through allocate_pty too
4551 dnl many times in the (rare) event of a failure.
4552 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4553 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4554 dnl Push various streams modules onto a PTY channel. Used in process.c.
4555 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.])
4560 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4561 "typing" a signal character on the pty.])
4564 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4565 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4566 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4567 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4570 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4571 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4572 gnu-linux | gnu-kfreebsd )
4574 AC_MSG_CHECKING([for signals via characters])
4575 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4576 #include <linux/version.h>
4577 #if LINUX_VERSION_CODE < 0x20400
4578 # error "Linux version too old"
4580 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4582 AC_MSG_RESULT([$emacs_signals_via_chars])
4583 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4588 AH_TEMPLATE(TAB3, [Undocumented.])
4591 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4593 gnu | dragonfly | freebsd | netbsd | openbsd )
4594 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4595 AC_DEFINE(TAB3, OXTABS)
4598 gnu-linux | gnu-kfreebsd )
4599 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4603 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4604 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4605 [Mark a secondary stack, like the register stack on the ia64.]), [])
4609 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4610 run_time_remap; for HPUX.])
4615 dnl This won't be used automatically yet. We also need to know, at least,
4616 dnl that the stack is continuous.
4617 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4618 registers relevant for conservative garbage collection in the jmp_buf.])
4622 dnl Not all the architectures are tested, but there are Debian packages
4623 dnl for SCM and/or Guile on them, so the technique must work. See also
4624 dnl comments in alloc.c concerning setjmp and gcc.
4625 dnl Fixme: it's probably safe to just use the GCC conditional below.
4626 gnu-linux | gnu-kfreebsd )
4627 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4628 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4629 || defined __alpha__ || defined __mips__ || defined __s390__ \
4630 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4631 || defined __ia64__ || defined __sh__
4634 # error "setjmp not known to work on this arch"
4636 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4641 if test x$GCC = xyes; then
4642 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4643 AC_DEFINE(GC_SETJMP_WORKS, 1)
4646 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4647 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4648 AC_DEFINE(GC_SETJMP_WORKS, 1)
4653 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4654 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4657 [[#include <setjmp.h>
4659 # define _longjmp longjmp
4664 _longjmp (j, 1);]])],
4665 [emacs_cv_func__setjmp=yes],
4666 [emacs_cv_func__setjmp=no])])
4667 if test $emacs_cv_func__setjmp = yes; then
4668 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4671 # We need to preserve signal mask to handle C stack overflows.
4672 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4675 [[#include <setjmp.h>
4678 if (! sigsetjmp (j, 1))
4679 siglongjmp (j, 1);]])],
4680 [emacs_cv_func_sigsetjmp=yes],
4681 [emacs_cv_func_sigsetjmp=no])])
4682 if test $emacs_cv_func_sigsetjmp = yes; then
4683 AC_DEFINE([HAVE_SIGSETJMP], 1,
4684 [Define to 1 if sigsetjmp and siglongjmp work.])
4687 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4688 yes,yes,* | *,*,mingw32)
4689 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4690 [Define to 1 if C stack overflow can be handled in some cases.]);;
4695 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4696 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4697 dnl and this is all we need.
4698 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4705 dnl Used in xfaces.c.
4706 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4707 some systems, where it requires time.h.])
4712 dnl Define symbols to identify the version of Unix this is.
4713 dnl Define all the symbols that apply correctly.
4714 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4715 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4716 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4717 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4722 dnl This symbol should be defined on AIX Version 3 ???????
4723 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4725 # error "_AIX not defined"
4727 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4731 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4735 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4736 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4737 dnl distinguish OS X from pure Darwin.
4738 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4741 gnu-linux | gnu-kfreebsd )
4743 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4748 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4753 AC_DEFINE(USG5_4, [])
4754 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4758 AC_DEFINE(DOS_NT, [])
4759 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4760 if test "x$ac_enable_checking" != "x" ; then
4761 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4767 AC_DEFINE(USG5_4, [])
4768 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4773 AC_DEFINE(USG5_4, [])
4777 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4780 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4781 emacs_cv_usable_FIONREAD=no
4785 emacs_cv_usable_FIONREAD=yes
4790 [AC_LANG_PROGRAM([[#include <sys/types.h>
4791 #include <sys/ioctl.h>
4793 # include <sys/filio.h>
4796 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4797 [emacs_cv_usable_FIONREAD=yes],
4798 [emacs_cv_usable_FIONREAD=no])
4801 if test $emacs_cv_usable_FIONREAD = yes; then
4802 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4804 if test $emacs_broken_SIGIO = no; then
4805 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4807 [AC_LANG_PROGRAM([[#include <fcntl.h>
4810 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4811 [emacs_cv_usable_SIGIO=yes],
4812 [emacs_cv_usable_SIGIO=no])],
4813 [emacs_cv_usable_SIGIO=yes],
4814 [emacs_cv_usable_SIGIO=no])
4815 if test $emacs_cv_usable_SIGIO = yes; then
4816 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4823 dnl It works to open the pty's tty in the parent (Emacs), then
4824 dnl close and reopen it in the child.
4825 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4826 works to open a pty's tty in the parent process, then close and
4827 reopen it in the child.])
4831 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4832 use VSUSP instead of VSWTCH.])
4836 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4841 # Set up the CFLAGS for real compilation, so we can substitute it.
4842 CFLAGS="$REAL_CFLAGS"
4843 CPPFLAGS="$REAL_CPPFLAGS"
4846 ## Hack to detect a buggy GCC version.
4847 if test "$GCC" = yes && \
4848 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4850 *-fno-optimize-sibling-calls*) ;;
4852 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4856 version=$PACKAGE_VERSION
4858 copyright="Copyright (C) 2016 Free Software Foundation, Inc."
4859 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4860 [Short copyright string for this version of Emacs.])
4863 ### Specify what sort of things we'll be editing into Makefile and config.h.
4864 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4866 AC_SUBST(configuration)
4871 AC_SUBST(exec_prefix)
4874 AC_SUBST(sharedstatedir)
4875 AC_SUBST(libexecdir)
4879 AC_SUBST(standardlisppath)
4880 AC_SUBST(locallisppath)
4882 AC_SUBST(x_default_search_path)
4884 AC_SUBST(archlibdir)
4890 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4891 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4892 ## end of LIBX_BASE, but nothing ever set it.
4893 AC_SUBST(LD_SWITCH_X_SITE)
4894 AC_SUBST(C_SWITCH_X_SITE)
4895 AC_SUBST(GNUSTEP_CFLAGS)
4897 ## Used in lwlib/Makefile.in.
4898 AC_SUBST(X_TOOLKIT_TYPE)
4900 AC_SUBST(ns_appbindir)
4901 AC_SUBST(ns_appresdir)
4903 AC_SUBST(GNU_OBJC_CFLAGS)
4904 AC_SUBST(OTHER_FILES)
4906 if test -n "${term_header}"; then
4907 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4908 [Define to the header for the built-in window system.])
4911 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4912 [Define to the canonical Emacs configuration name.])
4913 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4914 [Define to the options passed to configure.])
4915 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4916 define this to include extra configuration information.])
4920 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4927 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4928 AC_DEFINE(HAVE_X_WINDOWS, 1,
4929 [Define to 1 if you want to use the X window system.])
4931 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4933 if test "$HAVE_CAIRO" = "yes"; then
4934 FONT_OBJ="ftfont.o ftcrfont.o"
4935 elif test "$HAVE_XFT" = "yes"; then
4936 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4937 elif test "$HAVE_FREETYPE" = "yes"; then
4938 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4948 if test "${USE_X_TOOLKIT}" != "none" ; then
4950 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4951 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4952 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4953 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4954 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4958 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4959 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4963 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4964 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4965 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4969 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4970 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4973 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4976 AC_SUBST(WIDGET_OBJ)
4979 case "$USE_X_TOOLKIT" in
4980 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4981 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4982 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4984 if test "$HAVE_XWIDGETS" = "yes"; then
4985 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
4987 AC_SUBST(TOOLKIT_LIBW)
4989 if test "${opsys}" != "mingw32"; then
4990 if test "$USE_X_TOOLKIT" = "none"; then
4991 LIBXT_OTHER="\$(LIBXSM)"
4993 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4996 AC_SUBST(LIBXT_OTHER)
4998 if test "${HAVE_X11}" = "yes" ; then
4999 AC_DEFINE(HAVE_X11, 1,
5000 [Define to 1 if you want to use version 11 of X windows.])
5001 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
5005 AC_SUBST(LIBX_OTHER)
5007 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
5009 elif test "$USE_X_TOOLKIT" = none; then
5010 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
5012 LIBXMENU='$(lwlibdir)/liblw.a'
5016 AC_CACHE_CHECK([for struct alignment],
5017 [emacs_cv_struct_alignment],
5019 [AC_LANG_PROGRAM([[#include <stddef.h>
5020 struct __attribute__ ((aligned (8))) s { char c; };
5021 struct t { char c; struct s s; };
5022 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5024 [emacs_cv_struct_alignment=yes],
5025 [emacs_cv_struct_alignment=no])])
5026 if test "$emacs_cv_struct_alignment" = yes; then
5027 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5028 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5029 structure to an N-byte boundary.])
5032 if test "${GNU_MALLOC}" = "yes" ; then
5033 AC_DEFINE(GNU_MALLOC, 1,
5034 [Define to 1 if you want to use the GNU memory allocator.])
5038 if test "${REL_ALLOC}" = "yes" ; then
5039 AC_DEFINE(REL_ALLOC, 1,
5040 [Define REL_ALLOC if you want to use the relocating allocator for
5043 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5045 AC_SUBST(RALLOC_OBJ)
5047 if test "$opsys" = "cygwin"; then
5048 CYGWIN_OBJ="cygw32.o"
5049 ## Cygwin differs because of its unexec().
5051 POST_ALLOC_OBJ=lastfile.o
5052 elif test "$opsys" = "mingw32"; then
5055 POST_ALLOC_OBJ=lastfile.o
5058 PRE_ALLOC_OBJ=lastfile.o
5061 AC_SUBST(CYGWIN_OBJ)
5062 AC_SUBST(PRE_ALLOC_OBJ)
5063 AC_SUBST(POST_ALLOC_OBJ)
5065 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5066 dnl verbatim defined above. The tricky name is apropos, as this hack
5067 dnl makes Fortify go sour!
5068 AH_VERBATIM([FORTIFY_SOUR],
5069 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5070 The workaround disables some useful run-time checking, so it
5071 should be conditional to the platforms with the performance bug.
5072 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5073 #if defined __APPLE__ && defined __GNUC__
5074 # ifndef _DONT_USE_CTYPE_INLINE_
5075 # define _DONT_USE_CTYPE_INLINE_
5077 # ifndef _FORTIFY_SOURCE
5078 # define _FORTIFY_SOURCE 0
5083 # If user asks to omit features, disable optional features that gnulib
5084 # might otherwise enable.
5085 if test "$with_features" = no && test "$enable_acl" != yes; then
5089 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5090 # it temporarily reverts them to their pre-pkg-config values,
5091 # because gnulib needs to work with both src (which uses the
5092 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5093 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5094 # and it therefore needs to run in an environment where LIBS does not
5095 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5096 # for some package unrelated to lib-src.
5099 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5100 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5101 gl_ASSERT_NO_GNULIB_POSIXCHECK
5102 gl_ASSERT_NO_GNULIB_TESTS
5107 if test "${opsys}" = "mingw32"; then
5108 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5109 # Remove unneeded switches from the value of CC that goes to Makefiles
5110 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5114 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5116 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5119 ## The -headerpad option tells ld (see man page) to leave room at the
5120 ## end of the header for adding load commands. Needed for dumping.
5121 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5122 ## architecture (where they are 78 bytes each). The actual number of
5123 ## load commands added is not consistent but normally ranges from
5124 ## about 14 to about 34. Setting it high gets us plenty of slop and
5125 ## only costs about 1.5K of wasted binary space.
5126 headerpad_extra=1000
5127 if test "$HAVE_NS" = "yes"; then
5128 libs_nsgui="-framework AppKit"
5129 if test "$NS_IMPL_COCOA" = "yes"; then
5130 libs_nsgui="$libs_nsgui -framework IOKit"
5135 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5137 ## This is here because src/Makefile.in did some extra fiddling around
5138 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5139 ## LD_SWITCH_SYSTEM_TEMACS instead,
5140 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5141 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5144 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5145 ## find X at run-time.
5146 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5147 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5148 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5149 ## had different values in configure (in ac_link) and src/Makefile.in.
5150 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5151 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5154 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5155 case "$canonical" in
5156 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5157 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5161 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5164 # -nopie fixes a temacs segfault on Gentoo, OpenBSD, and other systems
5165 # with "hardened" GCC configurations for some reason (Bug#18784).
5166 # We don't know why -nopie works, but not segfaulting is better than
5167 # segfaulting. Use ac_c_werror_flag=yes when trying -nopie, otherwise
5168 # clang keeps warning that it does not understand -nopie, and pre-4.6
5169 # GCC has a similar problem (Bug#20338).
5170 AC_CACHE_CHECK([whether $CC accepts -nopie],
5171 [emacs_cv_prog_cc_nopie],
5172 [emacs_save_c_werror_flag=$ac_c_werror_flag
5173 emacs_save_LDFLAGS=$LDFLAGS
5174 ac_c_werror_flag=yes
5175 LDFLAGS="$LDFLAGS -nopie"
5176 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
5177 [emacs_cv_prog_cc_nopie=yes],
5178 [emacs_cv_prog_cc_nopie=no])
5179 ac_c_werror_flag=$emacs_save_c_werror_flag
5180 LDFLAGS=$emacs_save_LDFLAGS])
5181 if test "$emacs_cv_prog_cc_nopie" = yes; then
5182 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie"
5185 if test x$ac_enable_profiling != x ; then
5187 *freebsd | gnu-linux) ;;
5188 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5192 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5194 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5196 ## Common for all window systems
5197 if test "$window_system" != "none"; then
5198 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5199 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5200 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5203 AC_SUBST(WINDOW_SYSTEM_OBJ)
5205 AH_TOP([/* GNU Emacs site configuration template file.
5207 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2016
5208 Free Software Foundation, Inc.
5210 This file is part of GNU Emacs.
5212 GNU Emacs is free software: you can redistribute it and/or modify
5213 it under the terms of the GNU General Public License as published by
5214 the Free Software Foundation, either version 3 of the License, or
5215 (at your option) any later version.
5217 GNU Emacs is distributed in the hope that it will be useful,
5218 but WITHOUT ANY WARRANTY; without even the implied warranty of
5219 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5220 GNU General Public License for more details.
5222 You should have received a copy of the GNU General Public License
5223 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5226 /* No code in Emacs #includes config.h twice, but some bits of code
5227 intended to work with other packages as well (like gmalloc.c)
5228 think they can include it as many times as they like. */
5229 #ifndef EMACS_CONFIG_H
5230 #define EMACS_CONFIG_H
5233 AH_BOTTOM([#include <conf_post.h>
5235 #endif /* EMACS_CONFIG_H */
5244 #### Report on what we decided to do.
5245 #### Report GTK as a toolkit, even if it doesn't use Xt.
5246 #### It makes printing result more understandable as using GTK sets
5247 #### toolkit_scroll_bars to yes by default.
5248 if test "${HAVE_GTK}" = "yes"; then
5249 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5252 if test $USE_ACL -ne 0; then
5253 ACL_SUMMARY="yes $LIB_ACL"
5258 emacs_standard_dirs='Standard dirs'
5260 Configured for '${canonical}'.
5262 Where should the build process find the source code? ${srcdir}
5263 What compiler should emacs be built with? ${CC} ${CFLAGS}
5264 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5265 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5266 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5267 What window system should Emacs use? ${window_system}
5268 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5269 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5270 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5273 emacs_config_features=
5274 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5275 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5276 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5280 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5281 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5282 *) eval val=\${HAVE_$opt} ;;
5285 xno|xnone|x) continue ;;
5290 GTK*|LUCID|MOTIF) opt=$val ;;
5295 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5298 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5299 [Summary of some of the main features enabled by configure.])
5301 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5302 Does Emacs use -lXpm? ${HAVE_XPM}
5303 Does Emacs use -ljpeg? ${HAVE_JPEG}
5304 Does Emacs use -ltiff? ${HAVE_TIFF}
5305 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5306 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5307 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5308 Does Emacs use cairo? ${HAVE_CAIRO}
5309 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5310 Does Emacs support sound? ${HAVE_SOUND}
5311 Does Emacs use -lgpm? ${HAVE_GPM}
5312 Does Emacs use -ldbus? ${HAVE_DBUS}
5313 Does Emacs use -lgconf? ${HAVE_GCONF}
5314 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5315 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5316 Does Emacs use access control lists? ${ACL_SUMMARY}
5317 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5318 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5319 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5320 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5321 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5322 Does Emacs use -lotf? ${HAVE_LIBOTF}
5323 Does Emacs use -lxft? ${HAVE_XFT}
5324 Does Emacs directly use zlib? ${HAVE_ZLIB}
5325 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5326 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5327 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5330 if test -n "${EMACSDATA}"; then
5331 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5333 if test -n "${EMACSDOC}"; then
5334 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5339 if test "$HAVE_NS" = "yes"; then
5341 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5342 The installed application will go to nextstep/Emacs.app and can be
5343 run or moved from there."])
5344 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5345 echo "The application will be fully self-contained."
5347 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5348 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5349 to run if these resources are not installed."])
5354 if test "${opsys}" = "cygwin"; then
5356 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5362 # Remove any trailing slashes in these variables.
5364 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5366 case $exec_prefix in
5367 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5370 if test "$HAVE_NS" = "yes"; then
5371 if test "$NS_IMPL_GNUSTEP" = yes; then
5372 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5373 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5374 ns_check_file=Resources/Info-gnustep.plist
5376 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5377 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5378 ns_check_file=Contents/Info.plist
5380 AC_SUBST(ns_check_file)
5383 dnl config.status treats $srcdir specially, so I think this is ok...
5384 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5386 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5387 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5388 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5389 dnl (else you get "no 'Makefile.am' found for any configure output").
5390 dnl This will work, but you get a config.status that is not quite right
5391 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5392 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5393 dnl it seems better to just live with the duplication.
5394 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5396 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5397 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5398 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5399 leim/Makefile nextstep/Makefile nt/Makefile])
5401 dnl test/ is not present in release tarfiles.
5402 opt_makefile=test/Makefile
5404 if test -f "$srcdir/$opt_makefile.in"; then
5405 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5406 dnl Again, it's best not to use a variable. Though you can add
5407 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5408 AC_CONFIG_FILES([test/Makefile])
5412 dnl The admin/ directory used to be excluded from tarfiles.
5413 if test -d $srcdir/admin; then
5414 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5415 AC_CONFIG_FILES([admin/charsets/Makefile])
5416 AC_CONFIG_FILES([admin/unidata/Makefile])
5417 AC_CONFIG_FILES([admin/grammars/Makefile])
5421 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5423 AC_SUBST(SUBDIR_MAKEFILES_IN)
5425 dnl You might wonder (I did) why epaths.h is generated by running make,
5426 dnl rather than just letting configure generate it from epaths.in.
5427 dnl One reason is that the various paths are not fully expanded (see above);
5428 dnl eg gamedir=${prefix}/var/games/emacs.
5429 dnl Secondly, the GNU Coding standards require that one should be able
5430 dnl to run 'make prefix=/some/where/else' and override the values set
5431 dnl by configure. This also explains the 'move-if-change' test and
5432 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5433 AC_CONFIG_COMMANDS([src/epaths.h], [
5434 if test "${opsys}" = "mingw32"; then
5435 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5437 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5438 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5439 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5441 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5442 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5444 AC_CONFIG_COMMANDS([src/.gdbinit], [
5445 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5446 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5450 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5451 dnl See comments for etc-refcards-emacsver.tex.
5452 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5453 dnl it is not quite the same. But we are generating in $srcdir.
5454 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5455 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5456 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5459 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5460 dnl then a directory etc/refcards is created in the build directory,
5461 dnl which is probably harmless, but confusing (in out-of-tree builds).
5462 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5463 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5464 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5465 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5466 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5471 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])