1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the 'configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2016 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 25.0.92, 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 AS_IF([test "$gl_gcc_warnings" != yes],
883 AS_IF([test "$emacs_cv_clang" = yes],
885 # Turn off some warnings if supported.
886 gl_WARN_ADD([-Wno-switch])
887 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
888 gl_WARN_ADD([-Wno-pointer-sign])
889 gl_WARN_ADD([-Wno-string-plus-int])
890 gl_WARN_ADD([-Wno-unknown-attributes])
895 # This, $nw, is the list of warnings we disable.
898 case $with_x_toolkit in
899 lucid | athena | motif)
900 # Old toolkits mishandle 'const'.
901 nw="$nw -Wwrite-strings"
904 AS_IF([test -z "$nw"],
905 [gl_WARN_ADD([-Werror], [WERROR_CFLAGS])])
906 AC_SUBST([WERROR_CFLAGS])
908 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
909 nw="$nw -Woverlength-strings" # Not a problem these days
910 nw="$nw -Wformat-nonliteral" # we do this a lot
911 nw="$nw -Wvla" # Emacs uses <vla.h>.
912 nw="$nw -Wswitch-default" # Too many warnings for now
913 nw="$nw -Winline" # OK to ignore 'inline'
914 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
915 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
916 # signed overflow has undefined behavior
917 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
918 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
919 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
921 # Emacs doesn't care about shadowing; see
922 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
925 # Emacs's use of alloca inhibits protecting the stack.
926 nw="$nw -Wstack-protector"
928 # Emacs's use of partly-const functions such as Fgnutls_available_p
929 # make this option problematic.
930 nw="$nw -Wsuggest-attribute=const"
932 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
933 # option problematic.
934 nw="$nw -Wsuggest-attribute=pure"
936 # This part is merely for shortening the command line,
937 # since -Wall implies -Wswitch.
940 # This part is merely for shortening the command line,
941 # since -Wno-FOO needs to be added below regardless.
942 nw="$nw -Wmissing-field-initializers"
943 nw="$nw -Wtype-limits"
944 nw="$nw -Wunused-parameter"
946 if test $emacs_cv_clang = yes; then
947 nw="$nw -Wcast-align"
950 gl_MANYWARN_ALL_GCC([ws])
951 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
955 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
956 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
957 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
958 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
959 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
960 gl_WARN_ADD([-Wno-format-nonliteral])
962 # More things that clang is unduly picky about.
963 if test $emacs_cv_clang = yes; then
964 gl_WARN_ADD([-Wno-format-extra-args])
965 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
966 gl_WARN_ADD([-Wno-unused-command-line-argument])
967 gl_WARN_ADD([-Wno-unused-value])
970 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
971 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
972 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
973 [/* Enable compile-time and run-time bounds-checking, and some warnings,
974 without upsetting glibc 2.15+. */
975 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
976 && defined __OPTIMIZE__ && __OPTIMIZE__)
977 # define _FORTIFY_SOURCE 2
981 # We use a slightly smaller set of warning options for lib/.
982 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
984 nw="$nw -Wunused-macros"
986 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
987 AC_SUBST([GNULIB_WARN_CFLAGS])
997 AC_ARG_ENABLE(link-time-optimization,
998 [AS_HELP_STRING([--enable-link-time-optimization],
999 [build emacs with link-time optimization.
1000 This requires GCC 4.5.0 or later, or clang.
1001 (Note that clang support is experimental - see INSTALL.)
1002 It also makes Emacs harder to debug, and when we tried it
1003 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
1004 recommended for typical use.])],
1005 if test "${enableval}" != "no"; then
1007 if test $emacs_cv_clang = yes; then
1008 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
1009 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
1010 if test -x "$GOLD_PLUGIN"; then
1013 elif test x$GCC = xyes; then
1014 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
1015 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
1016 if test x$CPUS != x; then
1022 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1024 if test -z "$LTO"; then
1028 CFLAGS="$CFLAGS $LTO"
1029 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1030 [ac_lto_supported=yes], [ac_lto_supported=no])
1031 CFLAGS="$old_CFLAGS"
1033 AC_MSG_RESULT([$ac_lto_supported])
1034 if test "$ac_lto_supported" = "yes"; then
1035 CFLAGS="$CFLAGS $LTO"
1036 if test x$emacs_cv_clang = xyes; then
1037 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1038 # WARNING: 'ar --plugin ...' doesn't work without
1039 # command, so plugin name is appended to ARFLAGS.
1040 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1041 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1043 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1044 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1045 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1046 dnl dump core on Fedora 20, so play it safe for now.
1047 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1048 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1053 dnl Prefer silent make output. For verbose output, use
1054 dnl 'configure --disable-silent-rules' or 'make V=1' .
1055 AM_SILENT_RULES([yes])
1056 dnl Port to Automake 1.11.
1057 dnl This section can be removed once we assume Automake 1.14 or later.
1058 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1059 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1061 AM_SUBST_NOTMAKE([AM_V])
1062 AC_SUBST([AM_DEFAULT_V])
1063 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1064 AC_SUBST([AM_DEFAULT_VERBOSITY])
1066 dnl Some other nice autoconf tests.
1067 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1070 dnl if test "x$RANLIB" = x; then
1075 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1076 dnl can be made to directories. This is not relevant for our usage, and
1077 dnl excludes some cases that work fine for us. Eg MS Windows or files
1078 dnl hosted on AFS, both examples where simple links work, but links to
1079 dnl directories fail. We use a cut-down version instead.
1082 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1083 rm -f conf$$ conf$$.file
1085 LN_S_FILEONLY='cp -p'
1087 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1088 dnl random program in the current directory.
1089 if (echo >conf$$.file) 2>/dev/null; then
1090 if ln -s conf$$.file conf$$ 2>/dev/null; then
1091 if test "$opsys" = "mingw32"; then
1092 LN_S_FILEONLY='/bin/ln -s'
1094 LN_S_FILEONLY='ln -s'
1096 elif ln conf$$.file conf$$ 2>/dev/null; then
1097 if test "$opsys" = "mingw32"; then
1098 LN_S_FILEONLY=/bin/ln
1105 rm -f conf$$ conf$$.file
1107 if test "$LN_S_FILEONLY" = "ln -s"; then
1108 AC_MSG_RESULT([yes])
1110 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1113 AC_SUBST(LN_S_FILEONLY)
1116 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1117 dnl doesn't support links to directories, as in "ln file dir". But that
1118 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1119 dnl executables at "make install" time.
1120 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1121 dnl for more details.
1122 if test "$opsys" = "mingw32"; then
1126 dnl On some Debian versions, "install-info" prints irritating messages
1127 dnl "This is not dpkg install-info anymore, but GNU install-info"
1128 dnl if called via an absolute file name.
1129 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1130 dnl Sadly some people may have an old ginstall-info installed on
1131 dnl non-Debian systems, so we can't use this.
1132 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1133 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1135 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1136 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1137 dnl Don't use GZIP, which is used by gzip for additional parameters.
1138 AC_PATH_PROG(GZIP_PROG, gzip)
1140 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1141 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1143 if test $opsys = gnu-linux; then
1144 AC_PATH_PROG(PAXCTL, paxctl,,
1145 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1146 if test "X$PAXCTL" != X; then
1147 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1148 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1149 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1150 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1153 if test "${SETFATTR+set}" != set; then
1154 AC_CACHE_CHECK([for setfattr],
1155 [emacs_cv_prog_setfattr],
1157 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1158 emacs_cv_prog_setfattr=yes
1160 emacs_cv_prog_setfattr=no
1162 if test "$emacs_cv_prog_setfattr" = yes; then
1168 AC_SUBST([SETFATTR])
1172 ## Need makeinfo >= 4.7 (?) to build the manuals.
1173 if test "$MAKEINFO" != "no"; then
1174 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1177 case `($MAKEINFO --version) 2>/dev/null` in
1178 *' (GNU texinfo) '4.[[7-9]]* | \
1179 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1180 *' (GNU texinfo) '[[5-9]]* | \
1181 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1186 ## Makeinfo is unusual. For a released Emacs, the manuals are
1187 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1188 ## therefore in the category of "special tools" not normally required, which
1189 ## configure does not have to check for (eg autoconf itself).
1190 ## In a repository checkout on the other hand, the manuals are not included.
1191 ## So makeinfo is a requirement to build from the repository, and configure
1192 ## should test for it as it does for any other build requirement.
1193 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1194 ## with pre-built manuals, from a repository checkout.
1197 if test "$MAKEINFO" = "no"; then
1199 if test "x${with_makeinfo}" = "xno"; then
1201 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1202 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1203 source tree does not seem to have pre-built manuals in the 'info' directory.
1204 Either install a suitable version of makeinfo, or re-run configure
1205 with the '--without-makeinfo' option to build without the manuals.] )
1208 AC_SUBST(HAVE_MAKEINFO)
1210 if test $opsys = mingw32; then
1211 DOCMISC_W32=efaq-w32
1215 AC_SUBST(DOCMISC_W32)
1217 dnl Add our options to ac_link now, after it is set up.
1219 if test x$GCC = xyes; then
1220 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1221 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1223 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1224 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1227 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1228 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1229 dnl (Don't use '-z nocombreloc' as -z takes no arg on Irix.)
1230 dnl Treat GCC specially since it just gives a non-fatal 'unrecognized option'
1231 dnl if not built to support GNU ld.
1233 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1234 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1235 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1236 dnl Eg "make LDFLAGS=... all" could run into problems,
1237 dnl http://bugs.debian.org/684788
1238 dnl * unnecessary, since temacs is the only thing that actually needs it.
1239 dnl Indeed this is where it was originally, prior to:
1240 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1241 late_LDFLAGS="$LDFLAGS"
1242 if test x$GCC = xyes; then
1243 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1245 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1248 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1250 AC_MSG_CHECKING([for -znocombreloc])
1251 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1252 [AC_MSG_RESULT(yes)],
1253 LDFLAGS_NOCOMBRELOC=
1254 [AC_MSG_RESULT(no)])
1256 LDFLAGS="$late_LDFLAGS"
1258 AC_CACHE_CHECK([whether addresses are sanitized],
1259 [emacs_cv_sanitize_address],
1262 [[#ifndef __has_feature
1263 #define __has_feature(f) 0
1265 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1267 error "Addresses are not sanitized.";
1270 [emacs_cv_sanitize_address=yes],
1271 [emacs_cv_sanitize_address=no])])
1273 dnl The function dump-emacs will not be defined and temacs will do
1274 dnl (load "loadup") automatically unless told otherwise.
1275 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1277 nacl) CANNOT_DUMP=yes ;;
1280 if test "$CANNOT_DUMP" = "yes"; then
1281 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1282 elif test "$emacs_cv_sanitize_address" = yes; then
1283 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1286 AC_SUBST(CANNOT_DUMP)
1289 UNEXEC_OBJ=unexelf.o
1291 # MSDOS uses unexcoff.o
1293 UNEXEC_OBJ=unexaix.o
1299 UNEXEC_OBJ=unexmacosx.o
1302 UNEXEC_OBJ=unexhp9k800.o
1305 UNEXEC_OBJ=unexw32.o
1308 # Use the Solaris dldump() function, called from unexsol.c, to dump
1309 # emacs, instead of the generic ELF dump code found in unexelf.c.
1310 # The resulting binary has a complete symbol table, and is better
1311 # for debugging and other observability tools (debuggers, pstack, etc).
1313 # If you encounter a problem using dldump(), please consider sending
1314 # a message to the OpenSolaris tools-linking mailing list:
1315 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1317 # It is likely that dldump() works with older Solaris too, but this has
1318 # not been tested, so for now this change is for Solaris 10 or newer.
1319 UNEXEC_OBJ=unexsol.o
1326 ## Let 'ld' find image libs and similar things in /usr/local/lib.
1327 ## The system compiler, GCC, has apparently been modified to not
1328 ## look there, contrary to what a stock GCC would do.
1329 ### It's not our place to do this. See bug#10313#17.
1330 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1335 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1336 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1340 ### It's not our place to do this. See bug#10313#17.
1341 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1346 ## Han Boetes <han@boetes.org> says this is necessary,
1347 ## otherwise Emacs dumps core on elf systems.
1348 LD_SWITCH_SYSTEM="-Z"
1351 AC_SUBST(LD_SWITCH_SYSTEM)
1353 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1355 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1356 ## which has not been defined yet. When this was handled with cpp,
1357 ## it was expanded to null when configure sourced the s/*.h file.
1358 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1359 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1360 ## (or somesuch), but because it is supposed to go at the _front_
1361 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1362 ## Compare with the gnu-linux case below, which added to the end
1363 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1364 ## LD_SWITCH_SYSTEM_TEMACS.
1367 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1374 AC_CHECK_DECL([__ELF__])
1375 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1376 ## With ELF, make sure that all common symbols get allocated to in the
1377 ## data section. Otherwise, the dump of temacs may miss variables in
1378 ## the shared library that have been initialized. For example, with
1379 ## GNU libc, __malloc_initialized would normally be resolved to the
1380 ## shared library's .bss section, which is fatal.
1381 if test "x$GCC" = "xyes"; then
1382 C_SWITCH_MACHINE="-fno-common"
1384 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1387 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1388 dnl albeit under the mistaken assumption that said file
1389 dnl was no longer used.
1390 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1394 AC_SUBST(C_SWITCH_MACHINE)
1396 AC_SUBST(UNEXEC_OBJ)
1399 ## Some programs in src produce warnings saying certain subprograms
1400 ## are too complex and need a MAXMEM value greater than 2000 for
1401 ## additional optimization. --nils@exp-math.uni-essen.de
1402 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1403 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1404 if test "$opsys" = "mingw32"; then
1405 case "$canonical" in
1406 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1407 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1410 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1411 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1412 AC_SUBST(C_SWITCH_SYSTEM)
1417 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1418 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1420 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1422 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1424 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1426 ## Motif needs -lgen.
1427 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1430 AC_SUBST(LIBS_SYSTEM)
1432 ### Make sure subsequent tests use flags consistent with the build flags.
1434 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1435 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1437 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1440 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1441 AC_DEFUN([AC_TYPE_SIZE_T])
1442 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1443 AC_DEFUN([AC_TYPE_UID_T])
1445 # sqrt and other floating-point functions such as fmod and frexp
1446 # are found in -lm on many systems.
1448 AC_SEARCH_LIBS([sqrt], [m])
1449 if test "X$LIBS" = "X$OLD_LIBS"; then
1452 LIB_MATH=$ac_cv_search_sqrt
1456 dnl Current possibilities handled by sed (aix4-2 -> aix,
1457 dnl gnu-linux -> gnu/linux, etc.):
1458 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1459 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1460 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1467 ## Adding -lm confuses the dynamic linker, so omit it.
1470 freebsd | dragonfly )
1471 SYSTEM_TYPE=berkeley-unix
1473 gnu-linux | gnu-kfreebsd )
1475 hpux10-20 | hpux11 )
1479 SYSTEM_TYPE=windows-nt
1481 dnl NB this may be adjusted below.
1483 SYSTEM_TYPE=berkeley-unix
1487 SYSTEM_TYPE=usg-unix-v
1493 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1494 [The type of system you are compiling for; sets 'system-type'.])
1497 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1498 pre_PKG_CONFIG_LIBS=$LIBS
1500 PKG_PROG_PKG_CONFIG(0.9.0)
1502 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1503 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1504 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1505 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1506 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1507 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1509 AC_DEFUN([EMACS_CHECK_MODULES],
1510 [PKG_CHECK_MODULES([$1], [$2],
1511 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1512 m4_default([$3], [HAVE_$1=yes])],
1513 [m4_default([$4], [HAVE_$1=no])])])
1516 if test "${with_sound}" != "no"; then
1517 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1518 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1519 have_sound_header=yes, [], [
1521 #define WIN32_LEAN_AND_MEAN
1522 #include <windows.h>
1525 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1526 AC_MSG_ERROR([OSS sound support requested but not found.])
1528 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1529 # Emulation library used on NetBSD.
1530 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1531 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1532 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1533 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1534 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1538 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1540 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1541 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1542 if test $HAVE_ALSA = yes; then
1543 SAVE_CFLAGS="$CFLAGS"
1545 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1546 LIBS="$ALSA_LIBS $LIBS"
1547 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1548 emacs_alsa_normal=yes,
1549 emacs_alsa_normal=no)
1550 if test "$emacs_alsa_normal" != yes; then
1551 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1552 [[snd_lib_error_set_handler (0);]])],
1553 emacs_alsa_subdir=yes,
1554 emacs_alsa_subdir=no)
1555 if test "$emacs_alsa_subdir" != yes; then
1556 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1558 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1561 CFLAGS="$SAVE_CFLAGS"
1563 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1564 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1565 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1566 elif test "${with_sound}" = "alsa"; then
1567 AC_MSG_ERROR([ALSA sound support requested but not found.])
1569 fi dnl with_sound = alsa|yes
1571 dnl Define HAVE_SOUND if we have sound support. We know it works and
1572 dnl compiles only on the specified platforms. For others, it
1573 dnl probably doesn't make sense to try.
1574 dnl FIXME So surely we should bypass this whole section if not using
1575 dnl one of these platforms?
1576 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1578 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1579 dnl Adjust the --with-sound help text if you change this.
1580 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1581 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1587 AC_SUBST(CFLAGS_SOUND)
1590 dnl checks for header files
1591 AC_CHECK_HEADERS_ONCE(
1596 sys/utsname.h pwd.h utmp.h util.h)
1598 AC_MSG_CHECKING(if personality LINUX32 can be set)
1599 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1600 emacs_cv_personality_linux32=yes,
1601 emacs_cv_personality_linux32=no)
1602 AC_MSG_RESULT($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;;
2125 if test "${system_malloc}" = "yes"; then
2126 AC_DEFINE([SYSTEM_MALLOC], 1,
2127 [Define to 1 to use the system memory allocator, even if it is not
2131 (The GNU allocators don't work with this system configuration.)"
2133 elif test "$hybrid_malloc" = yes; then
2134 AC_DEFINE(HYBRID_MALLOC, 1,
2135 [Define to use gmalloc before dumping and the system malloc after.])
2137 GNU_MALLOC_reason="only before dumping"
2138 GMALLOC_OBJ=gmalloc.o
2141 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2142 VMLIMIT_OBJ=vm-limit.o
2144 AC_CHECK_HEADERS([sys/vlimit.h])
2145 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2148 [[extern char data_start[]; char ch;]],
2149 [[return data_start < &ch;]])],
2150 [emacs_cv_data_start=yes],
2151 [emacs_cv_data_start=no])])
2152 if test $emacs_cv_data_start = yes; then
2153 AC_DEFINE([HAVE_DATA_START], 1,
2154 [Define to 1 if data_start is the address of the start
2155 of the main data segment.])
2158 AC_SUBST(GMALLOC_OBJ)
2159 AC_SUBST(VMLIMIT_OBJ)
2161 if test "$doug_lea_malloc" = "yes" ; then
2162 if test "$GNU_MALLOC" = yes ; then
2164 (Using Doug Lea's new malloc from the GNU C Library.)"
2166 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2167 [Define to 1 if the system memory allocator is Doug Lea style,
2168 with malloc hooks and malloc_set_state.])
2170 ## Use mmap directly for allocating larger buffers.
2171 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2172 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2173 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2175 mingw32|gnu*) REL_ALLOC=no ;;
2179 if test x"${REL_ALLOC}" = x; then
2180 REL_ALLOC=${GNU_MALLOC}
2183 use_mmap_for_buffers=no
2185 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2189 if test $use_mmap_for_buffers = yes; then
2190 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2194 LIBS="$LIBS_SYSTEM $LIBS"
2196 dnl FIXME replace main with a function we actually want from this library.
2197 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2199 dnl Check for the POSIX thread library.
2201 AC_CHECK_HEADERS_ONCE(pthread.h)
2202 if test "$ac_cv_header_pthread_h" && test "$opsys" != "mingw32"; then
2203 AC_CACHE_CHECK([for pthread library],
2204 [emacs_cv_pthread_lib],
2205 [emacs_cv_pthread_lib=no
2207 for emacs_pthread_lib in 'none needed' -lpthread; do
2208 case $emacs_pthread_lib in
2209 -*) LIBS="$OLD_LIBS $emacs_pthread_lib";;
2213 [[#include <pthread.h>
2215 sigset_t old_mask, new_mask;
2216 void noop (void) {}]],
2217 [[pthread_t th = pthread_self ();
2219 status += pthread_create (&th, 0, 0, 0);
2220 status += pthread_sigmask (SIG_BLOCK, &new_mask, &old_mask);
2221 status += pthread_kill (th, 0);
2222 #if ! (defined SYSTEM_MALLOC || defined HYBRID_MALLOC \
2223 || defined DOUG_LEA_MALLOC)
2224 /* Test for pthread_atfork only if gmalloc uses it,
2225 as older-style hosts like MirBSD 10 lack it. */
2226 status += pthread_atfork (noop, noop, noop);
2229 [emacs_cv_pthread_lib=$emacs_pthread_lib])
2231 if test "$emacs_cv_pthread_lib" != no; then
2235 if test "$emacs_cv_pthread_lib" != no; then
2236 AC_DEFINE([HAVE_PTHREAD], 1, [Define to 1 if you have POSIX threads.])
2237 case $emacs_cv_pthread_lib in
2238 -*) LIB_PTHREAD=$emacs_cv_pthread_lib;;
2240 ac_cv_func_pthread_sigmask=yes
2241 # Some systems optimize for single-threaded programs by default, and
2242 # need special flags to disable these optimizations. For example, the
2243 # definition of 'errno' in <errno.h>.
2246 AC_DEFINE([_REENTRANT], 1,
2247 [Define to 1 if your system requires this in multithreaded code.]);;
2249 AC_DEFINE([_THREAD_SAFE], 1,
2250 [Define to 1 if your system requires this in multithreaded code.]);;
2254 AC_SUBST([LIB_PTHREAD])
2256 dnl Check for need for bigtoc support on IBM AIX
2260 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2262 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2263 *) gdb_cv_bigtoc=-bbigtoc ;;
2266 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2267 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2272 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2273 # is for the tests that follow. We set them back later on.
2275 REAL_CFLAGS="$CFLAGS"
2276 REAL_CPPFLAGS="$CPPFLAGS"
2279 if test "${HAVE_X11}" = "yes"; then
2280 DEFS="$C_SWITCH_X_SITE $DEFS"
2281 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2283 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2284 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2286 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2287 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2288 # but it's more convenient here to set LD_RUN_PATH since this
2289 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2290 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2291 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2295 if test "${opsys}" = "gnu-linux"; then
2296 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2297 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2298 [[XOpenDisplay ("foo");]])],
2299 [xgnu_linux_first_failure=no],
2300 [xgnu_linux_first_failure=yes])
2301 if test "${xgnu_linux_first_failure}" = "yes"; then
2302 OLD_CPPFLAGS="$CPPFLAGS"
2304 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2305 LIBS="$LIBS -b i486-linuxaout"
2306 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2307 [[XOpenDisplay ("foo");]])],
2308 [xgnu_linux_second_failure=no],
2309 [xgnu_linux_second_failure=yes])
2310 if test "${xgnu_linux_second_failure}" = "yes"; then
2311 # If we get the same failure with -b, there is no use adding -b.
2312 # So leave it out. This plays safe.
2315 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2316 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2319 CPPFLAGS=$OLD_CPPFLAGS
2326 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2327 # header files included from there.
2328 AC_MSG_CHECKING(for Xkb)
2329 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2330 #include <X11/XKBlib.h>]],
2331 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2332 emacs_xkb=yes, emacs_xkb=no)
2333 AC_MSG_RESULT($emacs_xkb)
2334 if test $emacs_xkb = yes; then
2335 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2338 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2339 XScreenNumberOfScreen)
2342 if test "${window_system}" = "x11"; then
2343 AC_MSG_CHECKING(X11 version 6)
2344 AC_CACHE_VAL(emacs_cv_x11_version_6,
2345 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2346 [[#if XlibSpecificationRelease < 6
2349 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2350 if test $emacs_cv_x11_version_6 = yes; then
2351 AC_MSG_RESULT(6 or newer)
2352 AC_DEFINE(HAVE_X11R6, 1,
2353 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2354 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2355 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2359 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2360 [Define if you have usable X11R6-style XIM support.])
2364 AC_MSG_RESULT(before 6)
2369 ### Use -lrsvg-2 if available, unless '--with-rsvg=no' is specified.
2371 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2372 if test "${with_rsvg}" != "no"; then
2373 RSVG_REQUIRED=2.11.0
2374 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2376 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2377 AC_SUBST(RSVG_CFLAGS)
2380 if test $HAVE_RSVG = yes; then
2381 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2382 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2383 # Windows loads librsvg dynamically
2384 if test "${opsys}" = "mingw32"; then
2392 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2393 if test "${with_imagemagick}" != "no"; then
2394 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2395 ## 6.8.2 makes Emacs crash; see Bug#13867.
2396 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2397 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2398 AC_SUBST(IMAGEMAGICK_CFLAGS)
2399 AC_SUBST(IMAGEMAGICK_LIBS)
2401 if test $HAVE_IMAGEMAGICK = yes; then
2402 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2405 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2406 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2407 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2417 gtk_term_header=$term_header
2420 if test "${opsys}" != "mingw32"; then
2421 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2424 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2426 dnl Checks for libraries.
2427 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2428 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2429 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2430 AC_MSG_ERROR($GTK_PKG_ERRORS)
2432 if test "$pkg_check_gtk" = "yes"; then
2433 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2434 GTK_OBJ=emacsgtkfixed.o
2435 gtk_term_header=gtkutil.h
2436 USE_GTK_TOOLKIT="GTK3"
2437 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2438 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2439 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2440 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2441 [Define to 1 to disable Glib deprecation warnings.])
2445 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2449 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2452 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2454 dnl Checks for libraries.
2455 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2456 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2457 if test "$pkg_check_gtk" = "no" &&
2458 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2460 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2462 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2469 if test x"$pkg_check_gtk" = xyes; then
2472 CFLAGS="$CFLAGS $GTK_CFLAGS"
2473 LIBS="$GTK_LIBS $LIBS"
2474 dnl Try to compile a simple GTK program.
2475 AC_MSG_CHECKING([whether GTK compiles])
2479 [[/* Check the Gtk and Glib APIs. */
2480 #include <gtk/gtk.h>
2481 #include <glib-object.h>
2483 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2487 GtkSettings *gs = 0;
2488 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2489 strict C prohibits this. Use gtk_main_iteration to test that the
2490 libraries are there. */
2491 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2492 0, 0, 0, G_CALLBACK (callback), 0))
2493 gtk_main_iteration ();
2496 AC_MSG_RESULT([$GTK_COMPILES])
2497 if test "${GTK_COMPILES}" != "yes"; then
2499 if test "$USE_X_TOOLKIT" != "maybe"; then
2500 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2503 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2505 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2506 GTK_OBJ="gtkutil.o $GTK_OBJ"
2507 term_header=$gtk_term_header
2509 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2510 closing open displays. This is no problem if you just use
2511 one display, but if you use more than one and close one of them
2513 See http://bugzilla.gnome.org/show_bug.cgi?id=85715]])
2521 if test "${HAVE_GTK}" = "yes"; then
2523 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2524 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2525 if test "$with_toolkit_scroll_bars" != no; then
2526 with_toolkit_scroll_bars=yes
2529 dnl Check if we have the old file selection dialog declared and
2530 dnl in the link library. In 2.x it may be in the library,
2531 dnl but not declared if deprecated featured has been selected out.
2532 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2533 HAVE_GTK_FILE_SELECTION=no
2534 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2535 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2536 #include <gtk/gtk.h>])
2537 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2538 AC_CHECK_FUNCS(gtk_file_selection_new)
2541 dnl Same as above for gtk_handle_box.
2542 HAVE_GTK_HANDLE_BOX=no
2543 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2544 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2545 #include <gtk/gtk.h>])
2546 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2547 AC_CHECK_FUNCS(gtk_handle_box_new)
2550 dnl Same as above for gtk_tearoff_menu_item.
2551 HAVE_GTK_TEAROFF_MENU_ITEM=no
2552 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2553 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2554 #include <gtk/gtk.h>])
2555 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2556 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2559 dnl Check for functions introduced in 2.14 and later.
2560 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2561 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2562 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2563 gtk_orientable_set_orientation \
2564 gtk_window_set_has_resize_grip)
2566 term_header=gtkutil.h
2570 dnl Enable xwidgets if GTK3 and WebKitGTK+ are available.
2573 if test "$with_xwidgets" != "no"; then
2574 test "$USE_GTK_TOOLKIT" = "GTK3" && test "$window_system" != "none" ||
2575 AC_MSG_ERROR([xwidgets requested but gtk3 not used.])
2577 WEBKIT_REQUIRED=1.4.0
2578 WEBKIT_MODULES="webkitgtk-3.0 >= $WEBKIT_REQUIRED"
2579 EMACS_CHECK_MODULES([WEBKIT], [$WEBKIT_MODULES])
2580 HAVE_XWIDGETS=$HAVE_WEBKIT
2581 test $HAVE_XWIDGETS = yes ||
2582 AC_MSG_ERROR([xwidgets requested but WebKitGTK+ not found.])
2584 XWIDGETS_OBJ=xwidget.o
2585 AC_DEFINE([HAVE_XWIDGETS], 1, [Define to 1 if you have xwidgets support.])
2587 AC_SUBST(XWIDGETS_OBJ)
2592 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2593 dnl other platforms.
2596 if test "${with_dbus}" = "yes"; then
2597 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2598 if test "$HAVE_DBUS" = yes; then
2599 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2600 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2601 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2604 LIBS="$LIBS $DBUS_LIBS"
2605 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2606 dbus_type_is_valid \
2607 dbus_validate_bus_name \
2608 dbus_validate_path \
2609 dbus_validate_interface \
2610 dbus_validate_member)
2615 AC_SUBST(DBUS_CFLAGS)
2619 dnl GSettings has been tested under GNU/Linux only.
2621 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2622 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2623 if test "$HAVE_GSETTINGS" = "yes"; then
2625 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2627 LIBS="$LIBS $GSETTINGS_LIBS"
2628 AC_MSG_CHECKING([whether GSettings is in gio])
2631 [[/* Check that gsettings really is present. */
2632 #include <glib-object.h>
2633 #include <gio/gio.h>
2636 GSettings *settings;
2637 GVariant *val = g_settings_get_value (settings, "");
2639 [], HAVE_GSETTINGS=no)
2640 AC_MSG_RESULT([$HAVE_GSETTINGS])
2642 if test "$HAVE_GSETTINGS" = "yes"; then
2643 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2644 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2645 SETTINGS_LIBS="$GSETTINGS_LIBS"
2652 dnl GConf has been tested under GNU/Linux only.
2653 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2655 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2656 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2657 if test "$HAVE_GCONF" = yes; then
2658 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2659 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2660 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2661 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2665 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2666 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2667 if test "$HAVE_GOBJECT" = "yes"; then
2668 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2669 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2671 SAVE_CFLAGS="$CFLAGS"
2673 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2674 LIBS="$SETTINGS_LIBS $LIBS"
2675 CFLAGS="$SAVE_CFLAGS"
2678 AC_SUBST(SETTINGS_CFLAGS)
2679 AC_SUBST(SETTINGS_LIBS)
2682 dnl SELinux is available for GNU/Linux only.
2685 if test "${with_selinux}" = "yes"; then
2686 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2687 if test "$HAVE_LIBSELINUX" = yes; then
2688 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2689 LIBSELINUX_LIBS=-lselinux
2692 AC_SUBST(LIBSELINUX_LIBS)
2695 if test "${with_gnutls}" = "yes" ; then
2696 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2697 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2698 if test "${HAVE_GNUTLS}" = "yes"; then
2699 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2700 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2701 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2704 # Windows loads GnuTLS dynamically
2705 if test "${opsys}" = "mingw32"; then
2710 AC_SUBST(LIBGNUTLS_LIBS)
2711 AC_SUBST(LIBGNUTLS_CFLAGS)
2716 dnl MS Windows native file monitor is available for mingw32 only.
2717 case $with_file_notification,$opsys in
2719 AC_MSG_ERROR(['--with-file-notification=w32' was specified, but
2720 this is only supported on MS-Windows native and MinGW32 builds.
2721 Consider using gfile instead.])
2723 w32,* | yes,mingw32)
2724 AC_CHECK_HEADER(windows.h)
2725 if test "$ac_cv_header_windows_h" = yes ; then
2726 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2727 NOTIFY_OBJ=w32notify.o
2728 NOTIFY_SUMMARY="yes (w32)"
2732 dnl inotify is available only on GNU/Linux.
2733 case $with_file_notification,$NOTIFY_OBJ in
2735 AC_CHECK_HEADER(sys/inotify.h)
2736 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2737 AC_CHECK_FUNC(inotify_init1)
2738 if test "$ac_cv_func_inotify_init1" = yes; then
2739 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2740 NOTIFY_OBJ=inotify.o
2741 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2746 dnl kqueue is available on BSD-like systems.
2747 case $with_file_notification,$NOTIFY_OBJ in
2749 EMACS_CHECK_MODULES([KQUEUE], [libkqueue])
2750 if test "$HAVE_KQUEUE" = "yes"; then
2751 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2752 CPPFLAGS="$CPPFLAGS -I/usr/include/kqueue"
2753 NOTIFY_CFLAGS=$KQUEUE_CFLAGS
2754 NOTIFY_LIBS=$KQUEUE_LIBS
2756 NOTIFY_SUMMARY="yes -lkqueue"
2758 AC_SEARCH_LIBS(kqueue, [])
2759 if test "$ac_cv_search_kqueue" != no; then
2760 AC_DEFINE(HAVE_KQUEUE, 1, [Define to 1 to use kqueue.])
2762 NOTIFY_SUMMARY="yes (kqueue)"
2767 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2768 dnl has been added in glib 2.24. It has been tested under
2770 case $with_file_notification,$NOTIFY_OBJ in
2772 if test "${HAVE_NS}" = yes; then
2773 AC_MSG_ERROR(['--with-file-notification=gfile' is not supported in NextStep builds.
2774 Consider kqueue instead.])
2776 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2777 if test "$HAVE_GFILENOTIFY" = "yes"; then
2778 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2779 NOTIFY_CFLAGS=$GFILENOTIFY_CFLAGS
2780 NOTIFY_LIBS=$GFILENOTIFY_LIBS
2781 NOTIFY_OBJ=gfilenotify.o
2782 NOTIFY_SUMMARY="yes -lgio (gfile)"
2787 case $with_file_notification,$NOTIFY_OBJ in
2788 yes,* | no,* | *,?*) ;;
2789 *) AC_MSG_ERROR([File notification '$with_file_notification' requested but requirements not found.]) ;;
2792 if test -n "$NOTIFY_OBJ"; then
2793 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2795 AC_SUBST(NOTIFY_CFLAGS)
2796 AC_SUBST(NOTIFY_LIBS)
2797 AC_SUBST(NOTIFY_OBJ)
2799 dnl Do not put whitespace before the #include statements below.
2800 dnl Older compilers (eg sunos4 cc) choke on it.
2803 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2804 if test "$with_xaw3d" != no; then
2805 AC_CACHE_VAL(emacs_cv_xaw3d,
2806 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2807 #include <X11/Intrinsic.h>
2808 #include <X11/Xaw3d/Simple.h>]],
2810 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2811 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2812 emacs_cv_xaw3d=no)])
2816 if test $emacs_cv_xaw3d = yes; then
2817 AC_MSG_CHECKING(for xaw3d)
2818 AC_MSG_RESULT([yes; using Lucid toolkit])
2822 AC_DEFINE(HAVE_XAW3D, 1,
2823 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2825 AC_MSG_CHECKING(for xaw3d)
2827 AC_MSG_CHECKING(for libXaw)
2828 AC_CACHE_VAL(emacs_cv_xaw,
2829 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2830 #include <X11/Intrinsic.h>
2831 #include <X11/Xaw/Simple.h>]],
2835 if test $emacs_cv_xaw = yes; then
2836 AC_MSG_RESULT([yes; using Lucid toolkit])
2839 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2840 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2842 AC_MSG_ERROR([No X toolkit could be found.
2843 If you are sure you want Emacs compiled without an X toolkit, pass
2845 to configure. Otherwise, install the development libraries for the toolkit
2846 that you want to use (e.g. Gtk+) and re-run configure.])
2851 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2855 if test "${USE_X_TOOLKIT}" != "none"; then
2856 AC_MSG_CHECKING(X11 toolkit version)
2857 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2858 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2859 [[#if XtSpecificationRelease < 6
2862 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2863 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2864 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2865 AC_MSG_RESULT(6 or newer)
2866 AC_DEFINE(HAVE_X11XTR6, 1,
2867 [Define to 1 if you have the X11R6 or newer version of Xt.])
2868 LIBXTR6="-lSM -lICE"
2870 ## Use libw.a along with X11R6 Xt.
2871 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2874 AC_MSG_RESULT(before 6)
2877 dnl If using toolkit, check whether libXmu.a exists.
2878 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2880 if test x$HAVE_X11XTR6 = xyes; then
2881 OTHERLIBS='-lXt -lSM -lICE'
2885 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2886 if test "X$LIBS" != "X$OLDLIBS"; then
2887 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2890 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2896 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2897 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2898 if test -d /usr/include/openmotif; then
2899 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2900 emacs_cv_openmotif=yes
2901 case "$canonical" in
2902 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2903 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2906 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2909 emacs_cv_openmotif=no
2911 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2912 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2913 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2916 Motif version prior to 2.1.
2918 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2919 if test $emacs_cv_motif_version_2_1 = yes; then
2920 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2921 if test x$emacs_cv_openmotif = xyes; then
2922 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2925 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2926 # We put this in CFLAGS temporarily to precede other -I options
2927 # that might be in CFLAGS temporarily.
2928 # We put this in CPPFLAGS where it precedes the other -I options.
2929 OLD_CPPFLAGS=$CPPFLAGS
2931 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2932 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2933 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2935 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2936 if test $emacs_cv_lesstif = yes; then
2937 # Make sure this -I option remains in CPPFLAGS after it is set
2938 # back to REAL_CPPFLAGS.
2939 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2940 # have those other -I options anyway. Ultimately, having this
2941 # directory ultimately in CPPFLAGS will be enough.
2942 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2943 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2946 CPPFLAGS=$OLD_CPPFLAGS
2949 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2950 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2953 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2954 dnl using Motif or Xaw3d is available, and unless
2955 dnl --with-toolkit-scroll-bars=no was specified.
2957 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2958 [Define to 1 if we should use toolkit scroll bars.])dnl
2959 USE_TOOLKIT_SCROLL_BARS=no
2960 if test "${with_toolkit_scroll_bars}" != "no"; then
2961 if test "${USE_X_TOOLKIT}" != "none"; then
2962 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2963 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2965 USE_TOOLKIT_SCROLL_BARS=yes
2966 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2967 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2968 USE_TOOLKIT_SCROLL_BARS=yes
2970 elif test "${HAVE_GTK}" = "yes"; then
2971 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2972 USE_TOOLKIT_SCROLL_BARS=yes
2973 elif test "${HAVE_NS}" = "yes"; then
2974 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2975 USE_TOOLKIT_SCROLL_BARS=yes
2976 elif test "${HAVE_W32}" = "yes"; then
2977 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2978 USE_TOOLKIT_SCROLL_BARS=yes
2982 dnl See if XIM is available.
2983 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2984 #include <X11/Xlib.h>
2985 #include <X11/Xresource.h>]],
2986 [[XIMProc callback;]])],
2988 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2991 dnl '--with-xim' now controls only the initial value of use_xim at run time.
2993 if test "${with_xim}" != "no"; then
2994 AC_DEFINE(USE_XIM, 1,
2995 [Define to 1 if we should use XIM, if it is available.])
2999 if test "${HAVE_XIM}" != "no"; then
3001 if test "$GCC" = yes; then
3002 CFLAGS="$CFLAGS --pedantic-errors"
3004 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
3005 #include <X11/Xlib.h>
3006 #include <X11/Xresource.h>]],
3012 XPointer *client_data;
3014 /* If we're not using GCC, it's probably not XFree86, and this is
3015 probably right, but we can't use something like --pedantic-errors. */
3016 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
3017 char*, XIMProc, XPointer*);
3019 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
3021 [emacs_cv_arg6_star=yes])
3022 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
3023 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
3024 either XPointer or XPointer*.])dnl
3025 if test "$emacs_cv_arg6_star" = yes; then
3026 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
3028 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
3033 ### Start of font-backend (under any platform) section.
3034 # (nothing here yet -- this is a placeholder)
3035 ### End of font-backend (under any platform) section.
3037 ### Start of font-backend (under X11) section.
3038 if test "${HAVE_X11}" = "yes"; then
3039 ## Use -lXft if available, unless '--with-xft=no'.
3041 if test "x${with_x}" = "xno"; then
3045 if test "$with_xft" != no; then
3046 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
3047 with_xft=$HAVE_FONTCONFIG
3050 if test "x${with_xft}" != "xno"; then
3052 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
3053 ## Because xftfont.c uses XRenderQueryExtension, we also
3054 ## need to link to -lXrender.
3056 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
3057 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
3058 OLD_CPPFLAGS="$CPPFLAGS"
3059 OLD_CFLAGS="$CFLAGS"
3061 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
3062 CFLAGS="$CFLAGS $XFT_CFLAGS"
3063 XFT_LIBS="-lXrender $XFT_LIBS"
3064 LIBS="$XFT_LIBS $LIBS"
3065 AC_CHECK_HEADER(X11/Xft/Xft.h,
3066 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
3067 [[#include <X11/X.h>]])
3069 if test "${HAVE_XFT}" = "yes"; then
3070 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
3072 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
3073 fi # "${HAVE_XFT}" = "yes"
3074 CPPFLAGS=$OLD_CPPFLAGS
3077 fi # "$HAVE_XFT" != no
3078 fi # "x${with_xft}" != "xno"
3080 ## We used to allow building with FreeType and without Xft.
3081 ## However, the ftx font backend driver is not in good shape.
3082 if test "$HAVE_XFT" != "yes"; then
3083 dnl For the "Does Emacs use" message at the end.
3087 dnl Strict linkers fail with
3088 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3089 dnl if -lfreetype is not specified.
3090 dnl The following is needed to set FREETYPE_LIBS.
3091 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3093 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3097 if test "${HAVE_FREETYPE}" = "yes"; then
3098 AC_DEFINE(HAVE_FREETYPE, 1,
3099 [Define to 1 if using the freetype and fontconfig libraries.])
3100 if test "${with_libotf}" != "no"; then
3101 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3102 if test "$HAVE_LIBOTF" = "yes"; then
3103 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3104 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3105 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3106 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3107 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3108 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3109 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3113 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3114 dnl Does the new font backend require it, or can it work without it?
3118 if test "${HAVE_LIBOTF}" = yes; then
3119 if test "${with_m17n_flt}" != "no"; then
3120 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3121 if test "$HAVE_M17N_FLT" = "yes"; then
3122 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3133 ### End of font-backend (under X11) section.
3135 AC_SUBST(FREETYPE_CFLAGS)
3136 AC_SUBST(FREETYPE_LIBS)
3137 AC_SUBST(FONTCONFIG_CFLAGS)
3138 AC_SUBST(FONTCONFIG_LIBS)
3139 AC_SUBST(LIBOTF_CFLAGS)
3140 AC_SUBST(LIBOTF_LIBS)
3141 AC_SUBST(M17N_FLT_CFLAGS)
3142 AC_SUBST(M17N_FLT_LIBS)
3145 if test "${HAVE_X11}" = "yes"; then
3146 if test "${with_cairo}" != "no"; then
3147 CAIRO_REQUIRED=1.12.0
3148 CAIRO_MODULE="cairo >= $CAIRO_REQUIRED"
3149 EMACS_CHECK_MODULES(CAIRO, $CAIRO_MODULE)
3150 if test $HAVE_CAIRO = yes; then
3151 AC_DEFINE(USE_CAIRO, 1, [Define to 1 if using cairo.])
3153 AC_MSG_ERROR([cairo requested but not found.])
3156 CFLAGS="$CFLAGS $CAIRO_CFLAGS"
3157 LIBS="$LIBS $CAIRO_LIBS"
3158 AC_SUBST(CAIRO_CFLAGS)
3159 AC_SUBST(CAIRO_LIBS)
3163 if test "${HAVE_X11}" = "yes"; then
3164 AC_CHECK_HEADER(X11/Xlib-xcb.h,
3165 AC_CHECK_LIB(xcb, xcb_translate_coordinates, HAVE_XCB=yes))
3166 if test "${HAVE_XCB}" = "yes"; then
3167 AC_CHECK_LIB(X11-xcb, XGetXCBConnection, HAVE_X11_XCB=yes)
3168 if test "${HAVE_X11_XCB}" = "yes"; then
3169 AC_DEFINE(USE_XCB, 1,
3170 [Define to 1 if you have the XCB library and X11-XCB library for mixed
3171 X11/XCB programming.])
3172 XCB_LIBS="-lX11-xcb -lxcb"
3178 ### Use -lXpm if available, unless '--with-xpm=no'.
3179 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3180 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3181 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3182 ### LDFLAGS) accordingly.
3185 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3186 if test "${with_xpm}" != "no"; then
3187 SAVE_CPPFLAGS="$CPPFLAGS"
3188 SAVE_LDFLAGS="$LDFLAGS"
3189 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3190 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3191 AC_CHECK_HEADER(X11/xpm.h,
3192 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3193 if test "${HAVE_XPM}" = "yes"; then
3194 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3195 AC_EGREP_CPP(no_return_alloc_pixels,
3196 [#include "X11/xpm.h"
3197 #ifndef XpmReturnAllocPixels
3198 no_return_alloc_pixels
3200 ], HAVE_XPM=no, HAVE_XPM=yes)
3202 if test "${HAVE_XPM}" = "yes"; then
3203 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3207 CPPFLAGS="$SAVE_CPPFLAGS"
3208 LDFLAGS="$SAVE_LDFLAGS"
3213 if test "${HAVE_XPM}" = "yes"; then
3214 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3219 if test "${HAVE_X11}" = "yes"; then
3220 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3221 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3223 if test "${with_xpm}" != "no"; then
3224 AC_CHECK_HEADER(X11/xpm.h,
3225 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3226 if test "${HAVE_XPM}" = "yes"; then
3227 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3228 AC_EGREP_CPP(no_return_alloc_pixels,
3229 [#include "X11/xpm.h"
3230 #ifndef XpmReturnAllocPixels
3231 no_return_alloc_pixels
3233 ], HAVE_XPM=no, HAVE_XPM=yes)
3235 if test "${HAVE_XPM}" = "yes"; then
3243 if test "${HAVE_XPM}" = "yes"; then
3244 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3246 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3247 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3252 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3253 ### slightly different requirements wrt image libraries (it doesn't
3254 ### use -lXpm because it loads the xpm shared library dynamically at
3256 if test "${opsys}" = "mingw32"; then
3257 if test "${with_xpm}" != "no"; then
3258 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3262 if test "${HAVE_XPM}" = "yes"; then
3263 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3269 ### Use -ljpeg if available, unless '--with-jpeg=no'.
3272 if test "${with_jpeg}" != "no"; then
3273 AC_CACHE_CHECK([for jpeglib 6b or later],
3276 for emacs_cv_jpeglib in yes -ljpeg no; do
3277 case $emacs_cv_jpeglib in
3280 *) LIBS="$LIBS $emacs_cv_jpeglib";;
3284 [[#undef HAVE_STDLIB_H /* Avoid config.h/jpeglib.h collision. */
3285 #include <stdio.h> /* jpeglib.h needs FILE and size_t. */
3286 #include <jpeglib.h>
3288 char verify[JPEG_LIB_VERSION < 62 ? -1 : 1];
3289 struct jpeg_decompress_struct cinfo;
3292 jpeg_create_decompress (&cinfo);
3293 WARNMS (&cinfo, JWRN_JPEG_EOF);
3294 jpeg_destroy_decompress (&cinfo);
3296 [emacs_link_ok=yes],
3299 test $emacs_link_ok = yes && break
3301 if test "$emacs_cv_jpeglib" != no; then
3303 AC_DEFINE([HAVE_JPEG], 1,
3304 [Define to 1 if you have the jpeg library (typically -ljpeg).])
3305 ### mingw32 doesn't use -ljpeg, since it loads the library
3306 ### dynamically when needed, and doesn't want a run-time
3307 ### dependency on the jpeglib DLL.
3308 test "$emacs_cv_jpeglib" != yes && test "${opsys}" != "mingw32" \
3309 && LIBJPEG=$emacs_cv_jpeglib
3316 if test "${with_zlib}" != "no"; then
3318 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3320 case $ac_cv_search_inflateEnd in
3321 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3324 if test "${HAVE_ZLIB}" = "yes"; then
3325 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3326 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3327 if test "${opsys}" = "mingw32"; then
3333 ### Dynamic modules support
3338 if test "${with_modules}" != "no"; then
3342 MODULES_SUFFIX=".so"
3346 MODULES_SUFFIX=".dll"
3350 MODULES_SUFFIX=".so"
3354 # BSD systems have dlopen in libc.
3355 AC_CHECK_FUNC([dlopen],
3356 [MODULES_SUFFIX=".so"
3361 if test "${HAVE_MODULES}" = no; then
3362 AC_MSG_ERROR([Dynamic modules are not supported on your system])
3365 LIBS="$LIBS $LIBMODULES"
3366 AC_CHECK_FUNCS([dladdr dlfunc])
3371 if test "${HAVE_MODULES}" = yes; then
3372 MODULES_OBJ="dynlib.o emacs-module.o"
3373 AC_DEFINE(HAVE_MODULES, 1, [Define to 1 if dynamic modules are enabled])
3374 AC_DEFINE_UNQUOTED(MODULES_SUFFIX, "$MODULES_SUFFIX",
3375 [System extension for dynamic libraries])
3377 AC_SUBST(MODULES_OBJ)
3378 AC_SUBST(LIBMODULES)
3380 ### Use -lpng if available, unless '--with-png=no'.
3384 if test "${NS_IMPL_COCOA}" = yes; then
3386 elif test "${with_png}" != no; then
3387 # mingw32 loads the library dynamically.
3388 if test "$opsys" = mingw32; then
3389 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3390 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3391 AC_MSG_CHECKING([for png])
3392 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3393 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3394 # libpng-config does not work; configure by hand.
3395 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3396 # in /usr/include/libpng.
3397 if test -r /usr/include/libpng/png.h &&
3398 test ! -r /usr/include/png.h; then
3399 png_cflags=-I/usr/include/libpng
3407 CFLAGS="$CFLAGS $png_cflags"
3408 LIBS="$png_libs -lz -lm $LIBS"
3410 [AC_LANG_PROGRAM([[#include <png.h>]],
3411 [[return !png_get_channels (0, 0);]])],
3413 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3415 # $LIBPNG requires explicit -lz in some cases.
3416 # We don't know what those cases are, exactly, so play it safe and
3417 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3418 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3419 LIBPNG="$LIBPNG -lz"
3423 AC_MSG_RESULT([$HAVE_PNG])
3426 if test $HAVE_PNG = yes; then
3427 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3430 CFLAGS="$CFLAGS $PNG_CFLAGS"
3431 AC_CHECK_DECL([png_longjmp],
3433 [AC_DEFINE([PNG_DEPSTRUCT], [],
3434 [Define to empty to suppress deprecation warnings when building
3435 with --enable-gcc-warnings and with libpng versions before 1.5,
3436 which lack png_longjmp.])],
3442 AC_SUBST(PNG_CFLAGS)
3444 ### Use -ltiff if available, unless '--with-tiff=no'.
3445 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3448 if test "${opsys}" = "mingw32"; then
3449 if test "${with_tiff}" != "no"; then
3450 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3452 if test "${HAVE_TIFF}" = "yes"; then
3453 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3455 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3456 if test "${with_tiff}" != "no"; then
3457 AC_CHECK_HEADER(tiffio.h,
3459 # At least one tiff package requires the jpeg library.
3460 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3461 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3464 if test "${HAVE_TIFF}" = "yes"; then
3465 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3466 dnl FIXME -lz -lm, as per libpng?
3472 ### Use -lgif or -lungif if available, unless '--with-gif=no'.
3473 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3476 if test "${opsys}" = "mingw32"; then
3477 if test "${with_gif}" != "no"; then
3478 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3480 if test "${HAVE_GIF}" = "yes"; then
3481 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3483 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3484 || test "${HAVE_W32}" = "yes"; then
3485 AC_CHECK_HEADER(gif_lib.h,
3486 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3487 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3488 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3489 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3491 if test "$HAVE_GIF" = yes; then
3493 elif test "$HAVE_GIF" = maybe; then
3494 # If gif_lib.h but no libgif, try libungif.
3495 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3496 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3499 if test "${HAVE_GIF}" = "yes"; then
3500 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3505 dnl Check for required libraries.
3506 if test "${HAVE_X11}" = "yes"; then
3509 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3510 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3511 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3512 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3513 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3514 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3515 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3516 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3517 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3518 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3520 if test "X${MISSING}" != X; then
3521 AC_MSG_ERROR([The following required libraries were not found:
3523 Maybe some development libraries/packages are missing?
3524 If you don't want to link with them give
3526 as options to configure])
3530 ### Use -lgpm if available, unless '--with-gpm=no'.
3533 if test "${with_gpm}" != "no"; then
3534 AC_CHECK_HEADER(gpm.h,
3535 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3537 if test "${HAVE_GPM}" = "yes"; then
3538 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3544 dnl Check for malloc/malloc.h on darwin
3545 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3548 ### Use NeXTstep API to implement GUI.
3549 if test "${HAVE_NS}" = "yes"; then
3550 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3551 if test "${NS_IMPL_COCOA}" = "yes"; then
3552 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3554 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3555 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3556 if test $NS_GNUSTEP_CONFIG != yes; then
3557 # See also .m.o rule in src/Makefile.in. */
3558 # FIXME: are all these flags really needed? Document here why. */
3559 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3560 ## Extra CFLAGS applied to src/*.m files.
3561 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3567 ### Use session management (-lSM -lICE) if available
3570 if test "${HAVE_X11}" = "yes"; then
3571 AC_CHECK_HEADER(X11/SM/SMlib.h,
3572 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3574 if test "${HAVE_X_SM}" = "yes"; then
3575 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3581 ### Use XRandr (-lXrandr) if available
3583 if test "${HAVE_X11}" = "yes"; then
3584 XRANDR_REQUIRED=1.2.2
3585 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3586 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3587 if test $HAVE_XRANDR = no; then
3588 # Test old way in case pkg-config doesn't have it (older machines).
3589 # Include Xrender.h by hand to work around bug in older Xrandr.h
3590 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3591 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3592 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3593 [], [AC_INCLUDES_DEFAULT
3594 #include <X11/extensions/Xrender.h>])
3595 if test $HAVE_XRANDR = yes; then
3596 XRANDR_LIBS=-lXrandr
3599 if test $HAVE_XRANDR = yes; then
3600 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3603 AC_SUBST(XRANDR_CFLAGS)
3604 AC_SUBST(XRANDR_LIBS)
3606 ### Use Xinerama (-lXinerama) if available
3608 if test "${HAVE_X11}" = "yes"; then
3609 XINERAMA_REQUIRED=1.0.2
3610 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3611 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3612 if test $HAVE_XINERAMA = no; then
3613 # Test old way in case pkg-config doesn't have it (older machines).
3614 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3615 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3616 if test $HAVE_XINERAMA = yes; then
3617 XINERAMA_LIBS=-lXinerama
3620 if test $HAVE_XINERAMA = yes; then
3621 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3624 AC_SUBST(XINERAMA_CFLAGS)
3625 AC_SUBST(XINERAMA_LIBS)
3627 ### Use Xfixes (-lXfixes) if available
3629 if test "${HAVE_X11}" = "yes"; then
3630 XFIXES_REQUIRED=4.0.0
3631 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3632 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3633 if test $HAVE_XFIXES = no; then
3634 # Test old way in case pkg-config doesn't have it (older machines).
3635 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3636 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3637 if test $HAVE_XFIXES = yes; then
3638 XFIXES_LIBS=-lXfixes
3641 if test $HAVE_XFIXES = yes; then
3642 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3645 AC_SUBST(XFIXES_CFLAGS)
3646 AC_SUBST(XFIXES_LIBS)
3648 ### Use libxml (-lxml2) if available
3649 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3651 if test "${with_xml2}" != "no"; then
3652 ### I'm not sure what the version number should be, so I just guessed.
3653 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3654 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3655 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3656 SAVE_CPPFLAGS="$CPPFLAGS"
3657 if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
3658 dnl /usr/include is not found. Try Xcode SDK dir if it is sane.
3659 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
3661 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
3665 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3666 AC_CHECK_HEADER(libxml/HTMLparser.h,
3667 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3668 [#include <libxml/HTMLparser.h>])])
3669 CPPFLAGS="$SAVE_CPPFLAGS"
3670 if test "${HAVE_LIBXML2}" = "yes"; then
3671 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3672 LIBXML2_LIBS="-lxml2"
3675 if test "${HAVE_LIBXML2}" = "yes"; then
3676 if test "${opsys}" != "mingw32"; then
3677 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3682 if test "${HAVE_LIBXML2}" = "yes"; then
3683 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3690 AC_SUBST(LIBXML2_LIBS)
3691 AC_SUBST(LIBXML2_CFLAGS)
3693 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3694 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3695 if test "${opsys}" = "mingw32"; then
3696 emacs_cv_netdb_declares_h_errno=yes
3698 AC_CACHE_CHECK(whether netdb declares h_errno,
3699 emacs_cv_netdb_declares_h_errno,
3700 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3701 [[return h_errno;]])],
3702 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3703 if test $emacs_cv_netdb_declares_h_errno = yes; then
3704 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3707 # Check for mail-locking functions in a "mail" library. Probably this should
3708 # have the same check as for liblockfile below.
3709 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3710 if test $have_mail = yes; then
3712 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the 'mail' library (-lmail).])
3715 LIBS="$LIBS_MAIL $LIBS"
3716 AC_CHECK_FUNCS(touchlock)
3721 dnl Debian, at least:
3722 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3723 if test $have_lockfile = yes; then
3724 LIBS_MAIL=-llockfile
3725 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the 'lockfile' library (-llockfile).])
3727 # If we have the shared liblockfile, assume we must use it for mail
3728 # locking (e.g. Debian). If we couldn't link against liblockfile
3729 # (no liblockfile.a installed), ensure that we don't need to.
3730 dnl This works for files generally, not just executables.
3731 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3732 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3733 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3734 if test $ac_cv_prog_liblockfile = yes; then
3735 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3736 This probably means that movemail could lose mail.
3737 There may be a 'development' package to install containing liblockfile.])
3740 AC_CHECK_HEADERS_ONCE(maillock.h)
3743 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3744 ## interlock access to the mail spool. The alternative is a lock file named
3745 ## /usr/spool/mail/$USER.lock.
3748 aix4-2) mail_lock="lockf" ;;
3750 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3752 ## On GNU/Linux systems, both methods are used by various mail programs.
3753 ## I assume most people are using newer mailers that have heard of flock.
3754 ## Change this if you need to.
3755 ## Debian contains a patch which says: "On Debian/GNU/Linux systems,
3756 ## configure gets the right answers, and that means *NOT* using flock.
3757 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3758 ## for details." and then uses '#ifdef DEBIAN'. Unfortunately the
3759 ## Debian maintainer hasn't provided a clean fix for Emacs.
3760 ## movemail.c will use 'maillock' when MAILDIR, HAVE_LIBMAIL and
3761 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3762 ## correct logic. -- fx
3763 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3764 ## liblockfile is a Free Software replacement for libmail, used on
3765 ## Debian systems and elsewhere. -rfr.
3768 if test $have_mail = yes || test $have_lockfile = yes; then
3769 test $ac_cv_header_maillock_h = yes && mail_lock=no
3774 mail_lock="none-needed" ;;
3778 case "$mail_lock" in
3779 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3781 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3785 *) BLESSMAIL_TARGET="need-blessmail" ;;
3787 AC_SUBST(BLESSMAIL_TARGET)
3790 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3791 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3792 getrusage get_current_dir_name \
3793 lrand48 random rint \
3794 select getpagesize setlocale newlocale \
3795 getrlimit setrlimit shutdown getaddrinfo \
3796 pthread_sigmask strsignal setitimer \
3797 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3799 getpwent endpwent getgrent endgrent \
3800 cfmakeraw cfsetspeed copysign __executable_start log2)
3803 dnl No need to check for posix_memalign if aligned_alloc works.
3804 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3806 dnl Cannot use AC_CHECK_FUNCS
3807 AC_CACHE_CHECK([for __builtin_unwind_init],
3808 emacs_cv_func___builtin_unwind_init,
3809 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3810 emacs_cv_func___builtin_unwind_init=yes,
3811 emacs_cv_func___builtin_unwind_init=no)])
3812 if test $emacs_cv_func___builtin_unwind_init = yes; then
3813 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3814 [Define to 1 if you have the '__builtin_unwind_init' function.])
3817 AC_CHECK_HEADERS_ONCE(sys/un.h)
3822 AC_CHECK_FUNCS(grantpt)
3824 # PTY-related GNU extensions.
3825 AC_CHECK_FUNCS(getpt posix_openpt)
3827 # Check this now, so that we will NOT find the above functions in ncurses.
3828 # That is because we have not set up to link ncurses in lib-src.
3829 # It's better to believe a function is not available
3830 # than to expect to find it in ncurses.
3831 # Also we need tputs and friends to be able to build at all.
3832 AC_MSG_CHECKING([for library containing tputs])
3833 # Run a test program that contains a call to tputs, a call that is
3834 # never executed. This tests whether a pre-'main' dynamic linker
3835 # works with the library. It's too much trouble to actually call
3836 # tputs in the test program, due to portability hassles. When
3837 # cross-compiling, assume the test program will run if it links.
3838 AC_DEFUN([tputs_link_source], [
3840 [[extern void tputs (const char *, int, int (*)(int));
3841 int main (int argc, char **argv)
3844 tputs (argv[0], 0, 0);
3848 if test "${opsys}" = "mingw32"; then
3851 # Maybe curses should be tried earlier?
3852 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3853 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3855 if test -z "$tputs_library"; then
3859 LIBS_TERMCAP=-l$tputs_library
3861 LIBS="$LIBS_TERMCAP $LIBS"
3863 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3864 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3866 if test "X$msg" != Xno; then
3871 AC_MSG_RESULT([$msg])
3872 if test "X$msg" = Xno; then
3873 AC_MSG_ERROR([The required function 'tputs' was not found in any library.
3874 The following libraries were tried (in order):
3875 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3876 Please try installing whichever of these libraries is most appropriate
3877 for your system, together with its header files.
3878 For example, a libncurses-dev(el) or similar package.])
3881 ## Use termcap instead of terminfo?
3882 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3884 ## FIXME? In the cases below where we unconditionally set
3885 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3886 ## if that was found above to have tputs.
3887 ## Should we use the gnu* logic everywhere?
3889 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3890 ## The ncurses library has been moved out of the System framework in
3891 ## Mac OS X 10.2. So if configure detects it, set the command-line
3892 ## option to use it.
3893 darwin) LIBS_TERMCAP="-lncurses" ;;
3895 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3898 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3899 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3900 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3901 [[#if __FreeBSD_version < 400000
3904 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3906 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3908 if test $emacs_cv_freebsd_terminfo = yes; then
3909 LIBS_TERMCAP="-lncurses"
3912 LIBS_TERMCAP="-ltermcap"
3922 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3924 LIBS_TERMCAP="-ltermcap"
3928 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3930 ## hpux: Make sure we get select from libc rather than from libcurses
3931 ## because libcurses on HPUX 10.10 has a broken version of select.
3932 ## We used to use -lc -lcurses, but this may be cleaner.
3933 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3934 # set that way, now it uses the default). Isn't this a contradiction?
3935 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3939 TERMCAP_OBJ=tparam.o
3940 if test $TERMINFO = yes; then
3941 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3942 TERMCAP_OBJ=terminfo.o
3944 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3945 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3947 AC_SUBST(LIBS_TERMCAP)
3948 AC_SUBST(TERMCAP_OBJ)
3950 # GNU/Linux-specific timer functions.
3951 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3953 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3955 [[timerfd_create (CLOCK_REALTIME,
3956 TFD_CLOEXEC | TFD_NONBLOCK);
3957 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3958 [emacs_cv_have_timerfd=yes],
3959 [emacs_cv_have_timerfd=no])])
3960 if test "$emacs_cv_have_timerfd" = yes; then
3961 AC_DEFINE([HAVE_TIMERFD], 1,
3962 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3965 # Alternate stack for signal handlers.
3966 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3967 [emacs_cv_alternate_stack],
3969 [AC_LANG_PROGRAM([[#include <signal.h>
3972 struct sigaction sa;
3973 ss.ss_sp = malloc (SIGSTKSZ);
3974 ss.ss_size = SIGSTKSZ;
3975 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3976 sigaltstack (&ss, 0);
3977 sigaction (SIGSEGV, &sa, 0);]])],
3978 [emacs_cv_alternate_stack=yes],
3979 [emacs_cv_alternate_stack=no])])
3981 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3982 # On Darwin, res_init appears not to be useful: see bug#562 and
3983 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3986 if test $opsys != darwin; then
3988 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3989 #include <arpa/nameser.h>
3990 #include <resolv.h>]],
3991 [[return res_init();]])],
3992 have_res_init=yes, have_res_init=no)
3993 if test "$have_res_init" = no; then
3995 LIBS="$LIBS -lresolv"
3996 AC_MSG_CHECKING(for res_init with -lresolv)
3997 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3998 #include <arpa/nameser.h>
3999 #include <resolv.h>]],
4000 [[return res_init();]])],
4001 have_res_init=yes, have_res_init=no)
4002 AC_MSG_RESULT($have_res_init)
4003 if test "$have_res_init" = yes ; then
4009 if test "$have_res_init" = yes; then
4010 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
4014 # Do we need the Hesiod library to provide the support routines?
4015 dnl FIXME? Should we be skipping this on Darwin too?
4017 if test "$with_hesiod" != no ; then
4018 # Don't set $LIBS here -- see comments above. FIXME which comments?
4019 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
4020 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
4021 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
4022 if test "$resolv" = yes ; then
4027 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
4028 hesiod=yes, :, $RESOLVLIB)])
4030 if test x"$hesiod" = xyes; then
4036 # Do we need libresolv (due to res_init or Hesiod)?
4037 if test "$resolv" = yes && test $opsys != darwin; then
4044 # These tell us which Kerberos-related libraries to use.
4051 if test "${with_kerberos}" != no; then
4053 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
4054 if test $have_com_err = yes; then
4055 COM_ERRLIB=-lcom_err
4056 LIBS="$COM_ERRLIB $LIBS"
4058 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
4059 if test $have_crypto = yes; then
4061 LIBS="$CRYPTOLIB $LIBS"
4063 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
4064 if test $have_k5crypto = yes; then
4065 CRYPTOLIB=-lk5crypto
4066 LIBS="$CRYPTOLIB $LIBS"
4068 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
4069 if test $have_krb5=yes; then
4071 LIBS="$KRB5LIB $LIBS"
4073 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
4074 if test "${with_kerberos5}" = no; then
4075 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
4076 if test $have_des425 = yes; then
4078 LIBS="$DESLIB $LIBS"
4080 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
4081 if test $have_des = yes; then
4083 LIBS="$DESLIB $LIBS"
4086 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
4087 if test $have_krb4 = yes; then
4089 LIBS="$KRB4LIB $LIBS"
4091 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
4092 if test $have_krb = yes; then
4094 LIBS="$KRB4LIB $LIBS"
4099 if test "${with_kerberos5}" != no; then
4100 AC_CHECK_HEADERS(krb5.h,
4101 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
4102 [#include <krb5.h>])])
4104 AC_CHECK_HEADERS(krb.h,,
4105 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
4106 [AC_CHECK_HEADERS(kerberos/krb.h)])])
4108 AC_CHECK_HEADERS(com_err.h)
4112 AC_SUBST(COM_ERRLIB)
4118 AC_CHECK_HEADERS(valgrind/valgrind.h)
4120 AC_CHECK_MEMBERS([struct unipair.unicode], [], [], [[#include <linux/kd.h>]])
4122 AC_CHECK_FUNCS_ONCE(tzset)
4125 AC_CHECK_FUNC(socket, , ok_so_far=no)
4126 if test $ok_so_far = yes; then
4127 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
4129 if test $ok_so_far = yes; then
4130 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
4132 if test $ok_so_far = yes; then
4133 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
4134 AC_DEFINE(HAVE_INET_SOCKETS, 1,
4135 [Define to 1 if you have inet sockets.])
4140 AC_CHECK_FUNCS(snprintf)
4142 dnl Check for glib. This differs from other library checks in that
4143 dnl Emacs need not link to glib unless some other library is already
4144 dnl linking to glib. Although glib provides no facilities that Emacs
4145 dnl needs for its own purposes, when glib is present Emacs needs to
4146 dnl use primitives like g_main_context_query to avoid clashing with
4147 dnl glib at a low level.
4149 dnl Check this late, since it depends on $GTK_CFLAGS etc.
4153 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
4154 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
4155 CFLAGS="$CFLAGS $NOTIFY_CFLAGS $CAIRO_CFLAGS"
4156 LIBS="$LIBS $NOTIFY_LIBS $CAIRO_LIBS"
4157 AC_MSG_CHECKING([whether GLib is linked in])
4158 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4161 [[g_print ("Hello world");]])],
4164 AC_MSG_RESULT([$links_glib])
4165 if test "${links_glib}" = "yes"; then
4166 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4167 if test "$HAVE_NS" = no;then
4175 dnl Adapted from Haible's version.
4176 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4177 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4178 [[char* cs = nl_langinfo(CODESET);]])],
4179 emacs_cv_langinfo_codeset=yes,
4180 emacs_cv_langinfo_codeset=no)
4182 if test $emacs_cv_langinfo_codeset = yes; then
4183 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4184 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4189 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4190 dnl how the tty code is related to POSIX and/or other versions of termios.
4191 dnl The following looks like a useful start.
4193 dnl AC_SYS_POSIX_TERMIOS
4194 dnl if test $ac_cv_sys_posix_termios = yes; then
4195 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4196 dnl and macros for terminal control.])
4197 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4200 dnl Turned on June 1996 supposing nobody will mind it.
4201 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4202 if test "${opsys}" != "mingw32"; then
4203 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4204 in the full name stands for the login id.])
4207 dnl Everybody supports this, except MS.
4208 dnl Seems like the kind of thing we should be testing for, though.
4209 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4210 if test "${opsys}" != "mingw32"; then
4211 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4214 dnl Everybody supports this, except MS-DOS.
4215 dnl Seems like the kind of thing we should be testing for, though.
4216 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4217 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4218 4.2-compatible sockets.])
4220 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4222 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4223 a null file, or a data sink.])
4224 if test "${opsys}" = "mingw32"; then
4225 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4227 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4230 if test "${opsys}" = "mingw32"; then
4235 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4236 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4237 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4238 dnl decides that a command-line argument to be passed to a MinGW program
4239 dnl is a PATH-style list of directories. But that heuristics plays it
4240 dnl safe, and only does the replacement when it is _absolutely_ sure it
4241 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4242 dnl which breaks in-tree builds. So we do this manually instead.
4243 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4244 dnl be computed as ':' in MSYS Bash.
4247 dnl Everybody supports this, except MS-DOS.
4248 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4250 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4253 AC_DEFINE(DIRECTORY_SEP, ['/'],
4254 [Character that separates directories in a file name.])
4256 if test "${opsys}" = "mingw32"; then
4257 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4258 [Returns true if character is a device separator.])
4260 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4261 [Returns true if character is a directory separator.])
4263 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4264 [Returns true if character is any form of separator.])
4266 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4267 [Returns true if character is a device separator.])
4269 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4270 [Returns true if character is a directory separator.])
4272 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4273 [Returns true if character is any form of separator.])
4276 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4280 dnl Unfortunately without libXmu we cannot support EditRes.
4281 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4282 AC_DEFINE(NO_EDITRES, 1)
4287 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4288 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4289 AC_DEFINE(NO_EDITRES, 1)
4295 irix6-5 | sol2* | unixware )
4296 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4297 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4298 dnl need the constant to dimension an array. So wire in the appropriate
4300 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4304 emacs_broken_SIGIO=no
4307 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4308 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4309 hpux* | irix6-5 | nacl | openbsd | sol2* | unixware )
4310 emacs_broken_SIGIO=yes
4314 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4315 dnl the way this system works, libc functions that return malloced
4316 dnl memory use the libc malloc implementation. Calling xfree or
4317 dnl xrealloc on the results of such functions results in a crash.
4319 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4320 dnl but that does not currently work on this system.
4322 dnl It is possible to completely override the malloc implementation on
4323 dnl AIX, but that involves putting the malloc functions in a shared
4324 dnl library and setting the MALLOCTYPE environment variable to point to
4325 dnl that shared library.
4327 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4328 dnl to avoid a crash just use the Emacs implementation for that function.
4330 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4331 dnl of this file, so that we do not check for get_current_dir_name
4332 dnl on AIX. But that might be fragile if something else ends
4333 dnl up testing for get_current_dir_name as a dependency.
4334 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4335 get_current_dir_name should not be used.])
4339 dnl Circumvent a bug in FreeBSD. In the following sequence of
4340 dnl writes/reads on a PTY, read(2) returns bogus data:
4342 dnl write(2) 1022 bytes
4343 dnl write(2) 954 bytes, get EAGAIN
4344 dnl read(2) 1024 bytes in process_read_output
4345 dnl read(2) 11 bytes in process_read_output
4347 dnl That is, read(2) returns more bytes than have ever been written
4348 dnl successfully. The 1033 bytes read are the 1022 bytes written
4349 dnl successfully after processing (for example with CRs added if the
4350 dnl terminal is set up that way which it is here). The same bytes will
4351 dnl be seen again in a later read(2), without the CRs.
4352 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4353 work around an issue when reading from a PTY.])
4359 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4360 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4365 darwin | dragonfly | freebsd | netbsd | openbsd )
4366 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4367 close a pty to make it a controlling terminal (it is already a
4368 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4372 dnl FIXME Surely we can test for this rather than hard-code it.
4374 netbsd | openbsd) sound_device="/dev/audio" ;;
4375 *) sound_device="/dev/dsp" ;;
4379 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4380 [Name of the default sound device.])
4383 dnl Emacs can read input using SIGIO and buffering characters itself,
4384 dnl or using CBREAK mode and making C-g cause SIGINT.
4385 dnl The choice is controlled by the variable interrupt_input.
4387 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4389 dnl Emacs uses the presence of the USABLE_SIGIO macro
4390 dnl to indicate whether or not signal-driven I/O is possible. It uses
4391 dnl INTERRUPT_INPUT to decide whether to use it by default.
4393 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4394 dnl CBREAK mode has two disadvantages
4395 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4396 dnl I hear that in system V this problem does not exist.
4397 dnl 2) Control-G causes output to be discarded.
4398 dnl I do not know whether this can be fixed in system V.
4400 dnl Another method of doing input is planned but not implemented.
4401 dnl It would have Emacs fork off a separate process
4402 dnl to read the input and send it to the true Emacs process
4405 darwin | gnu-linux | gnu-kfreebsd )
4406 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4411 dnl If the system's imake configuration file defines 'NeedWidePrototypes'
4412 dnl as 'NO', we must define NARROWPROTO manually. Such a define is
4413 dnl generated in the Makefile generated by 'xmkmf'. If we don't define
4414 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4415 dnl taking float or double parameters.
4417 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4418 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4419 file defines 'NeedWidePrototypes' as 'NO'.])
4424 dnl Used in process.c, this must be a loop, even if it only runs once.
4425 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4426 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4427 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4428 dnl trying suffixes 0-16.
4429 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4430 first PTY, if PTYs are supported.])
4431 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4432 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4433 end of a PTY, if non-standard.])
4434 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4435 end of a PTY, if non-standard.])
4439 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4440 dnl You allocate a pty by opening /dev/ptc to get the master side.
4441 dnl To get the name of the slave side, you just ttyname() the master side.
4442 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4443 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4447 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4448 dnl multi-line AC_DEFINEs are hard. :(
4449 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)])
4450 AC_DEFINE(PTY_NAME_SPRINTF, [])
4451 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4455 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4458 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd | darwin | nacl )
4460 if test "x$ac_cv_func_grantpt" = xyes; then
4461 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4462 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4463 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4464 dnl to prevent sigchld_handler from intercepting the child's death.
4465 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); }])
4466 dnl if HAVE_POSIX_OPENPT
4467 if test "x$ac_cv_func_posix_openpt" = xyes; then
4468 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4469 AC_DEFINE(PTY_NAME_SPRINTF, [])
4471 elif test "x$ac_cv_func_getpt" = xyes; then
4472 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4473 AC_DEFINE(PTY_NAME_SPRINTF, [])
4475 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4478 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4483 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4484 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4485 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4489 dnl It looks like this cannot be right, because it is not a loop.
4490 dnl However, process.c actually does this:
4496 dnl which presumably makes it OK, since irix == sgi (?).
4497 dnl FIXME it seems like this special treatment is unnecessary?
4498 dnl Why can't irix use a single-trip loop like eg cygwin?
4499 AC_DEFINE(PTY_ITERATION, [])
4500 dnl Not used, because PTY_ITERATION is defined.
4501 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4502 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); }])
4503 dnl No need to get the pty name at all.
4504 AC_DEFINE(PTY_NAME_SPRINTF, [])
4505 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4506 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4510 dnl On SysVr4, grantpt(3) forks a subprocess, so do not use
4511 dnl O_CLOEXEC when opening the pty, and keep the SIGCHLD handler
4512 dnl from intercepting that death. If any child but grantpt's should die
4513 dnl within, it should be caught after sigrelse(2).
4514 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4515 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); }])
4519 dnl Comments are as per sol2*.
4520 AC_DEFINE(PTY_OPEN, [fd = open (pty_name, O_RDWR | O_NONBLOCK)])
4521 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); }])
4528 dnl This change means that we don't loop through allocate_pty too
4529 dnl many times in the (rare) event of a failure.
4530 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4531 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4532 dnl Push various streams modules onto a PTY channel. Used in process.c.
4533 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.])
4538 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4539 "typing" a signal character on the pty.])
4542 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4543 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4544 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4545 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4548 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4549 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4550 gnu-linux | gnu-kfreebsd )
4552 AC_MSG_CHECKING([for signals via characters])
4553 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4554 #include <linux/version.h>
4555 #if LINUX_VERSION_CODE < 0x20400
4556 # error "Linux version too old"
4558 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4560 AC_MSG_RESULT([$emacs_signals_via_chars])
4561 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4566 AH_TEMPLATE(TAB3, [Undocumented.])
4569 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4571 gnu | dragonfly | freebsd | netbsd | openbsd )
4572 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4573 AC_DEFINE(TAB3, OXTABS)
4576 gnu-linux | gnu-kfreebsd )
4577 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4581 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4582 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4583 [Mark a secondary stack, like the register stack on the ia64.]), [])
4587 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4588 run_time_remap; for HPUX.])
4593 dnl This won't be used automatically yet. We also need to know, at least,
4594 dnl that the stack is continuous.
4595 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4596 registers relevant for conservative garbage collection in the jmp_buf.])
4600 dnl Not all the architectures are tested, but there are Debian packages
4601 dnl for SCM and/or Guile on them, so the technique must work. See also
4602 dnl comments in alloc.c concerning setjmp and gcc.
4603 dnl Fixme: it's probably safe to just use the GCC conditional below.
4604 gnu-linux | gnu-kfreebsd )
4605 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4606 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4607 || defined __alpha__ || defined __mips__ || defined __s390__ \
4608 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4609 || defined __ia64__ || defined __sh__
4612 # error "setjmp not known to work on this arch"
4614 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4619 if test x$GCC = xyes; then
4620 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4621 AC_DEFINE(GC_SETJMP_WORKS, 1)
4624 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4625 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4626 AC_DEFINE(GC_SETJMP_WORKS, 1)
4631 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4632 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4635 [[#include <setjmp.h>
4637 # define _longjmp longjmp
4642 _longjmp (j, 1);]])],
4643 [emacs_cv_func__setjmp=yes],
4644 [emacs_cv_func__setjmp=no])])
4645 if test $emacs_cv_func__setjmp = yes; then
4646 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4649 # We need to preserve signal mask to handle C stack overflows.
4650 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4653 [[#include <setjmp.h>
4656 if (! sigsetjmp (j, 1))
4657 siglongjmp (j, 1);]])],
4658 [emacs_cv_func_sigsetjmp=yes],
4659 [emacs_cv_func_sigsetjmp=no])])
4660 if test $emacs_cv_func_sigsetjmp = yes; then
4661 AC_DEFINE([HAVE_SIGSETJMP], 1,
4662 [Define to 1 if sigsetjmp and siglongjmp work.])
4665 case $emacs_cv_func_sigsetjmp,$emacs_cv_alternate_stack,$opsys in
4666 yes,yes,* | *,*,mingw32)
4667 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4668 [Define to 1 if C stack overflow can be handled in some cases.]);;
4673 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4674 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4675 dnl and this is all we need.
4676 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4683 dnl Used in xfaces.c.
4684 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4685 some systems, where it requires time.h.])
4690 dnl Define symbols to identify the version of Unix this is.
4691 dnl Define all the symbols that apply correctly.
4692 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4693 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4694 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4695 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4700 dnl This symbol should be defined on AIX Version 3 ???????
4701 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4703 # error "_AIX not defined"
4705 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4709 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4713 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4714 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4715 dnl distinguish OS X from pure Darwin.
4716 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4719 gnu-linux | gnu-kfreebsd )
4721 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4726 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4731 AC_DEFINE(USG5_4, [])
4732 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4736 AC_DEFINE(DOS_NT, [])
4737 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4738 if test "x$ac_enable_checking" != "x" ; then
4739 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4745 AC_DEFINE(USG5_4, [])
4746 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4751 AC_DEFINE(USG5_4, [])
4755 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4758 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4759 emacs_cv_usable_FIONREAD=no
4763 emacs_cv_usable_FIONREAD=yes
4768 [AC_LANG_PROGRAM([[#include <sys/types.h>
4769 #include <sys/ioctl.h>
4771 # include <sys/filio.h>
4774 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4775 [emacs_cv_usable_FIONREAD=yes],
4776 [emacs_cv_usable_FIONREAD=no])
4779 if test $emacs_cv_usable_FIONREAD = yes; then
4780 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4782 if test $emacs_broken_SIGIO = no; then
4783 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4785 [AC_LANG_PROGRAM([[#include <fcntl.h>
4788 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4789 [emacs_cv_usable_SIGIO=yes],
4790 [emacs_cv_usable_SIGIO=no])],
4791 [emacs_cv_usable_SIGIO=yes],
4792 [emacs_cv_usable_SIGIO=no])
4793 if test $emacs_cv_usable_SIGIO = yes; then
4794 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4801 dnl It works to open the pty's tty in the parent (Emacs), then
4802 dnl close and reopen it in the child.
4803 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4804 works to open a pty's tty in the parent process, then close and
4805 reopen it in the child.])
4809 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4810 use VSUSP instead of VSWTCH.])
4814 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4819 # Set up the CFLAGS for real compilation, so we can substitute it.
4820 CFLAGS="$REAL_CFLAGS"
4821 CPPFLAGS="$REAL_CPPFLAGS"
4824 ## Hack to detect a buggy GCC version.
4825 if test "$GCC" = yes && \
4826 $CC --version 2> /dev/null | grep 'gcc.* 4.5.0' >/dev/null; then
4828 *-fno-optimize-sibling-calls*) ;;
4830 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS.]);;
4834 version=$PACKAGE_VERSION
4836 copyright="Copyright (C) 2016 Free Software Foundation, Inc."
4837 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4838 [Short copyright string for this version of Emacs.])
4841 ### Specify what sort of things we'll be editing into Makefile and config.h.
4842 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4844 AC_SUBST(configuration)
4849 AC_SUBST(exec_prefix)
4852 AC_SUBST(sharedstatedir)
4853 AC_SUBST(libexecdir)
4857 AC_SUBST(standardlisppath)
4858 AC_SUBST(locallisppath)
4860 AC_SUBST(x_default_search_path)
4862 AC_SUBST(archlibdir)
4868 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4869 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4870 ## end of LIBX_BASE, but nothing ever set it.
4871 AC_SUBST(LD_SWITCH_X_SITE)
4872 AC_SUBST(C_SWITCH_X_SITE)
4873 AC_SUBST(GNUSTEP_CFLAGS)
4875 ## Used in lwlib/Makefile.in.
4876 AC_SUBST(X_TOOLKIT_TYPE)
4878 AC_SUBST(ns_appbindir)
4879 AC_SUBST(ns_appresdir)
4881 AC_SUBST(GNU_OBJC_CFLAGS)
4882 AC_SUBST(OTHER_FILES)
4884 if test -n "${term_header}"; then
4885 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4886 [Define to the header for the built-in window system.])
4889 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4890 [Define to the canonical Emacs configuration name.])
4891 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4892 [Define to the options passed to configure.])
4893 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4894 define this to include extra configuration information.])
4898 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4905 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4906 AC_DEFINE(HAVE_X_WINDOWS, 1,
4907 [Define to 1 if you want to use the X window system.])
4909 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4911 if test "$HAVE_CAIRO" = "yes"; then
4912 FONT_OBJ="ftfont.o ftcrfont.o"
4913 elif test "$HAVE_XFT" = "yes"; then
4914 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4915 elif test "$HAVE_FREETYPE" = "yes"; then
4916 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4926 if test "${USE_X_TOOLKIT}" != "none" ; then
4928 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4929 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4930 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4931 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4932 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4936 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4937 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4941 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4942 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4943 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4947 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4948 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4951 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4954 AC_SUBST(WIDGET_OBJ)
4957 case "$USE_X_TOOLKIT" in
4958 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4959 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4960 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4962 if test "$HAVE_XWIDGETS" = "yes"; then
4963 TOOLKIT_LIBW="$TOOLKIT_LIBW -lXcomposite"
4965 AC_SUBST(TOOLKIT_LIBW)
4967 if test "${opsys}" != "mingw32"; then
4968 if test "$USE_X_TOOLKIT" = "none"; then
4969 LIBXT_OTHER="\$(LIBXSM)"
4971 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4974 AC_SUBST(LIBXT_OTHER)
4976 if test "${HAVE_X11}" = "yes" ; then
4977 AC_DEFINE(HAVE_X11, 1,
4978 [Define to 1 if you want to use version 11 of X windows.])
4979 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4983 AC_SUBST(LIBX_OTHER)
4985 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4987 elif test "$USE_X_TOOLKIT" = none; then
4988 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4990 LIBXMENU='$(lwlibdir)/liblw.a'
4994 AC_CACHE_CHECK([for struct alignment],
4995 [emacs_cv_struct_alignment],
4997 [AC_LANG_PROGRAM([[#include <stddef.h>
4998 struct __attribute__ ((aligned (8))) s { char c; };
4999 struct t { char c; struct s s; };
5000 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
5002 [emacs_cv_struct_alignment=yes],
5003 [emacs_cv_struct_alignment=no])])
5004 if test "$emacs_cv_struct_alignment" = yes; then
5005 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
5006 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
5007 structure to an N-byte boundary.])
5010 if test "${GNU_MALLOC}" = "yes" ; then
5011 AC_DEFINE(GNU_MALLOC, 1,
5012 [Define to 1 if you want to use the GNU memory allocator.])
5016 if test "${REL_ALLOC}" = "yes" ; then
5017 AC_DEFINE(REL_ALLOC, 1,
5018 [Define REL_ALLOC if you want to use the relocating allocator for
5021 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
5023 AC_SUBST(RALLOC_OBJ)
5025 if test "$opsys" = "cygwin"; then
5026 CYGWIN_OBJ="sheap.o cygw32.o"
5027 ## Cygwin differs because of its unexec().
5029 POST_ALLOC_OBJ=lastfile.o
5030 elif test "$opsys" = "mingw32"; then
5033 POST_ALLOC_OBJ=lastfile.o
5036 PRE_ALLOC_OBJ=lastfile.o
5039 AC_SUBST(CYGWIN_OBJ)
5040 AC_SUBST(PRE_ALLOC_OBJ)
5041 AC_SUBST(POST_ALLOC_OBJ)
5043 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
5044 dnl verbatim defined above. The tricky name is apropos, as this hack
5045 dnl makes Fortify go sour!
5046 AH_VERBATIM([FORTIFY_SOUR],
5047 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
5048 The workaround disables some useful run-time checking, so it
5049 should be conditional to the platforms with the performance bug.
5050 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
5051 #if defined __APPLE__ && defined __GNUC__
5052 # ifndef _DONT_USE_CTYPE_INLINE_
5053 # define _DONT_USE_CTYPE_INLINE_
5055 # ifndef _FORTIFY_SOURCE
5056 # define _FORTIFY_SOURCE 0
5061 # If user asks to omit features, disable optional features that gnulib
5062 # might otherwise enable.
5063 if test "$with_features" = no && test "$enable_acl" != yes; then
5067 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
5068 # it temporarily reverts them to their pre-pkg-config values,
5069 # because gnulib needs to work with both src (which uses the
5070 # pkg-config stuff) and lib-src (which does not). For example, gnulib
5071 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
5072 # and it therefore needs to run in an environment where LIBS does not
5073 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
5074 # for some package unrelated to lib-src.
5077 CFLAGS=$pre_PKG_CONFIG_CFLAGS
5078 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
5079 gl_ASSERT_NO_GNULIB_POSIXCHECK
5080 gl_ASSERT_NO_GNULIB_TESTS
5085 if test "${opsys}" = "mingw32"; then
5086 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
5087 # Remove unneeded switches from the value of CC that goes to Makefiles
5088 CC=`AS_ECHO(["$CC"]) | sed -e "s,$GCC_TEST_OPTIONS,,"`
5092 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
5094 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
5097 ## The -headerpad option tells ld (see man page) to leave room at the
5098 ## end of the header for adding load commands. Needed for dumping.
5099 ## 0x1000 is enough for roughly 52 load commands on the x86_64
5100 ## architecture (where they are 78 bytes each). The actual number of
5101 ## load commands added is not consistent but normally ranges from
5102 ## about 14 to about 34. Setting it high gets us plenty of slop and
5103 ## only costs about 1.5K of wasted binary space.
5104 headerpad_extra=1000
5105 if test "$HAVE_NS" = "yes"; then
5106 libs_nsgui="-framework AppKit"
5107 if test "$NS_IMPL_COCOA" = "yes"; then
5108 libs_nsgui="$libs_nsgui -framework IOKit"
5113 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
5115 ## This is here because src/Makefile.in did some extra fiddling around
5116 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
5117 ## LD_SWITCH_SYSTEM_TEMACS instead,
5118 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
5119 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
5122 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
5123 ## find X at run-time.
5124 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
5125 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
5126 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
5127 ## had different values in configure (in ac_link) and src/Makefile.in.
5128 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
5129 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
5132 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
5133 case "$canonical" in
5134 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5135 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
5139 *) LD_SWITCH_SYSTEM_TEMACS= ;;
5142 # -nopie fixes a temacs segfault on Gentoo, OpenBSD, and other systems
5143 # with "hardened" GCC configurations for some reason (Bug#18784).
5144 # We don't know why -nopie works, but not segfaulting is better than
5145 # segfaulting. Use ac_c_werror_flag=yes when trying -nopie, otherwise
5146 # clang keeps warning that it does not understand -nopie, and pre-4.6
5147 # GCC has a similar problem (Bug#20338).
5148 AC_CACHE_CHECK([whether $CC accepts -nopie],
5149 [emacs_cv_prog_cc_nopie],
5150 [emacs_save_c_werror_flag=$ac_c_werror_flag
5151 emacs_save_LDFLAGS=$LDFLAGS
5152 ac_c_werror_flag=yes
5153 LDFLAGS="$LDFLAGS -nopie"
5154 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
5155 [emacs_cv_prog_cc_nopie=yes],
5156 [emacs_cv_prog_cc_nopie=no])
5157 ac_c_werror_flag=$emacs_save_c_werror_flag
5158 LDFLAGS=$emacs_save_LDFLAGS])
5159 if test "$emacs_cv_prog_cc_nopie" = yes; then
5160 LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -nopie"
5163 if test x$ac_enable_profiling != x ; then
5165 *freebsd | gnu-linux) ;;
5166 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
5170 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5172 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5174 ## Common for all window systems
5175 if test "$window_system" != "none"; then
5176 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5177 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5178 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5181 AC_SUBST(WINDOW_SYSTEM_OBJ)
5183 AH_TOP([/* GNU Emacs site configuration template file.
5185 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2016
5186 Free Software Foundation, Inc.
5188 This file is part of GNU Emacs.
5190 GNU Emacs is free software: you can redistribute it and/or modify
5191 it under the terms of the GNU General Public License as published by
5192 the Free Software Foundation, either version 3 of the License, or (at
5193 your option) any later version.
5195 GNU Emacs is distributed in the hope that it will be useful,
5196 but WITHOUT ANY WARRANTY; without even the implied warranty of
5197 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5198 GNU General Public License for more details.
5200 You should have received a copy of the GNU General Public License
5201 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5204 /* No code in Emacs #includes config.h twice, but some bits of code
5205 intended to work with other packages as well (like gmalloc.c)
5206 think they can include it as many times as they like. */
5207 #ifndef EMACS_CONFIG_H
5208 #define EMACS_CONFIG_H
5211 AH_BOTTOM([#include <conf_post.h>
5213 #endif /* EMACS_CONFIG_H */
5222 #### Report on what we decided to do.
5223 #### Report GTK as a toolkit, even if it doesn't use Xt.
5224 #### It makes printing result more understandable as using GTK sets
5225 #### toolkit_scroll_bars to yes by default.
5226 if test "${HAVE_GTK}" = "yes"; then
5227 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5230 if test $USE_ACL -ne 0; then
5231 ACL_SUMMARY="yes $LIB_ACL"
5236 emacs_standard_dirs='Standard dirs'
5238 Configured for '${canonical}'.
5240 Where should the build process find the source code? ${srcdir}
5241 What compiler should emacs be built with? ${CC} ${CFLAGS}
5242 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5243 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5244 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5245 What window system should Emacs use? ${window_system}
5246 What toolkit should Emacs use? ${USE_X_TOOLKIT}
5247 Where do we find X Windows header files? ${x_includes:-$emacs_standard_dirs}
5248 Where do we find X Windows libraries? ${x_libraries:-$emacs_standard_dirs}"])
5251 emacs_config_features=
5252 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG CAIRO IMAGEMAGICK SOUND GPM DBUS \
5253 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5254 LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS X_TOOLKIT X11 NS MODULES \
5258 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5259 TOOLKIT_SCROLL_BARS|X_TOOLKIT) eval val=\${USE_$opt} ;;
5260 *) eval val=\${HAVE_$opt} ;;
5263 xno|xnone|x) continue ;;
5268 GTK*|LUCID|MOTIF) opt=$val ;;
5273 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5276 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5277 [Summary of some of the main features enabled by configure.])
5279 AS_ECHO([" Does Emacs use -lXaw3d? ${HAVE_XAW3D}
5280 Does Emacs use -lXpm? ${HAVE_XPM}
5281 Does Emacs use -ljpeg? ${HAVE_JPEG}
5282 Does Emacs use -ltiff? ${HAVE_TIFF}
5283 Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF
5284 Does Emacs use a png library? ${HAVE_PNG} $LIBPNG
5285 Does Emacs use -lrsvg-2? ${HAVE_RSVG}
5286 Does Emacs use cairo? ${HAVE_CAIRO}
5287 Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}
5288 Does Emacs support sound? ${HAVE_SOUND}
5289 Does Emacs use -lgpm? ${HAVE_GPM}
5290 Does Emacs use -ldbus? ${HAVE_DBUS}
5291 Does Emacs use -lgconf? ${HAVE_GCONF}
5292 Does Emacs use GSettings? ${HAVE_GSETTINGS}
5293 Does Emacs use a file notification library? ${NOTIFY_SUMMARY}
5294 Does Emacs use access control lists? ${ACL_SUMMARY}
5295 Does Emacs use -lselinux? ${HAVE_LIBSELINUX}
5296 Does Emacs use -lgnutls? ${HAVE_GNUTLS}
5297 Does Emacs use -lxml2? ${HAVE_LIBXML2}
5298 Does Emacs use -lfreetype? ${HAVE_FREETYPE}
5299 Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}
5300 Does Emacs use -lotf? ${HAVE_LIBOTF}
5301 Does Emacs use -lxft? ${HAVE_XFT}
5302 Does Emacs directly use zlib? ${HAVE_ZLIB}
5303 Does Emacs have dynamic modules support? ${HAVE_MODULES}
5304 Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}
5305 Does Emacs support Xwidgets (requires gtk3)? ${HAVE_XWIDGETS}
5308 if test -n "${EMACSDATA}"; then
5309 AS_ECHO([" Environment variable EMACSDATA set to: $EMACSDATA"])
5311 if test -n "${EMACSDOC}"; then
5312 AS_ECHO([" Environment variable EMACSDOC set to: $EMACSDOC"])
5317 if test "$HAVE_NS" = "yes"; then
5319 AS_ECHO(["You must run \"${MAKE-make} install\" in order to test the built application.
5320 The installed application will go to nextstep/Emacs.app and can be
5321 run or moved from there."])
5322 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5323 echo "The application will be fully self-contained."
5325 AS_ECHO(["The lisp resources for the application will be installed under ${prefix}.
5326 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5327 to run if these resources are not installed."])
5332 if test "${opsys}" = "cygwin"; then
5334 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5340 # Remove any trailing slashes in these variables.
5342 */) prefix=`AS_DIRNAME(["$prefix."])`;;
5344 case $exec_prefix in
5345 */) exec_prefix=`AS_DIRNAME(["$exec_prefix."])`;;
5348 if test "$HAVE_NS" = "yes"; then
5349 if test "$NS_IMPL_GNUSTEP" = yes; then
5350 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5351 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5352 ns_check_file=Resources/Info-gnustep.plist
5354 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5355 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5356 ns_check_file=Contents/Info.plist
5358 AC_SUBST(ns_check_file)
5361 dnl config.status treats $srcdir specially, so I think this is ok...
5362 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5364 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5365 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5366 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5367 dnl (else you get "no 'Makefile.am' found for any configure output").
5368 dnl This will work, but you get a config.status that is not quite right
5369 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5370 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5371 dnl it seems better to just live with the duplication.
5372 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5374 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5375 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5376 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5377 leim/Makefile nextstep/Makefile nt/Makefile])
5379 dnl test/ is not present in release tarfiles.
5380 opt_makefile=test/automated/Makefile
5382 if test -f "$srcdir/$opt_makefile.in"; then
5383 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5384 dnl Again, it's best not to use a variable. Though you can add
5385 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5386 AC_CONFIG_FILES([test/automated/Makefile])
5390 dnl The admin/ directory used to be excluded from tarfiles.
5391 if test -d $srcdir/admin; then
5392 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/charsets/Makefile admin/unidata/Makefile admin/grammars/Makefile"
5393 AC_CONFIG_FILES([admin/charsets/Makefile])
5394 AC_CONFIG_FILES([admin/unidata/Makefile])
5395 AC_CONFIG_FILES([admin/grammars/Makefile])
5399 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5401 AC_SUBST(SUBDIR_MAKEFILES_IN)
5403 dnl You might wonder (I did) why epaths.h is generated by running make,
5404 dnl rather than just letting configure generate it from epaths.in.
5405 dnl One reason is that the various paths are not fully expanded (see above);
5406 dnl eg gamedir=${prefix}/var/games/emacs.
5407 dnl Secondly, the GNU Coding standards require that one should be able
5408 dnl to run 'make prefix=/some/where/else' and override the values set
5409 dnl by configure. This also explains the 'move-if-change' test and
5410 dnl the use of force in the 'epaths-force' rule in Makefile.in.
5411 AC_CONFIG_COMMANDS([src/epaths.h], [
5412 if test "${opsys}" = "mingw32"; then
5413 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5415 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5416 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5417 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5419 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5420 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5422 AC_CONFIG_COMMANDS([src/.gdbinit], [
5423 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5424 AS_ECHO(["source $ac_abs_top_srcdir/src/.gdbinit"]) > src/.gdbinit
5428 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5429 dnl See comments for etc-refcards-emacsver.tex.
5430 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5431 dnl it is not quite the same. But we are generating in $srcdir.
5432 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5433 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5434 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5437 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5438 dnl then a directory etc/refcards is created in the build directory,
5439 dnl which is probably harmless, but confusing (in out-of-tree builds).
5440 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5441 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5442 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5443 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5444 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5449 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])