1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2015 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 25.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
135 dnl Fairly arbitrary, older versions might work too.
136 AM_INIT_AUTOMAKE(1.11)
138 dnl Canonicalize the configuration name.
144 if test -z "$host_alias"; then
146 # No --host argument was given to 'configure'; therefore $host
147 # was set to a default value based on the build platform. But
148 # this default value may be wrong if we are building from a
149 # 64-bit MSYS[2] pre-configured to build 32-bit MinGW programs.
150 # Therefore, we'll try to get the right host platform from the
153 AC_MSG_CHECKING([the compiler's target])
154 if test -z "$CC"; then
159 cc_target=`$cc -v 2>&1 | sed -n 's/Target: //p'`
163 "") AC_MSG_ERROR([Impossible to obtain $cc compiler target.
164 Please explicitly provide --host.])
166 *) AC_MSG_WARN([Compiler reported non-standard target.
167 Defaulting to $host.])
170 AC_MSG_RESULT([$host])
173 . $srcdir/nt/mingw-cfg.site
177 # srcdir is an absolute path. In this case, force the format
178 # "/c/foo/bar", to simplify later conversions to native Windows
179 # format ("c:/foo/bar").
180 srcdir=`cd "${srcdir}" && pwd -W`
181 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
182 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
188 configuration=${host_alias-${build_alias-$host}}
190 dnl Support for --program-prefix, --program-suffix and
191 dnl --program-transform-name options
194 dnl It is important that variables on the RHS not be expanded here,
195 dnl hence the single quotes. This is per the GNU coding standards, see
196 dnl (autoconf) Installation Directory Variables
197 dnl See also epaths.h below.
198 lispdir='${datadir}/emacs/${version}/lisp'
199 standardlisppath='${lispdir}'
200 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
201 '${datadir}/emacs/site-lisp'
202 lisppath='${locallisppath}:${standardlisppath}'
203 etcdir='${datadir}/emacs/${version}/etc'
204 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
205 etcdocdir='${datadir}/emacs/${version}/etc'
206 gamedir='${localstatedir}/games/emacs'
208 dnl Special option to disable the most of other options.
210 [AS_HELP_STRING([--without-all],
211 [omit almost all features and build
212 small executable with minimal dependencies])],
213 [with_features=$withval],
216 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
217 dnl Create a new --with option that defaults to being disabled.
218 dnl NAME is the base name of the option. The shell variable with_NAME
219 dnl will be set to either the user's value (if the option is
220 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
221 dnl option is not specified). Note that the shell variable name is
222 dnl constructed as autoconf does, by replacing non-alphanumeric
223 dnl characters with "_".
224 dnl HELP-STRING is the help text for the option.
225 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
226 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
227 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
230 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
231 dnl Create a new --with option that defaults to $with_features.
232 dnl NAME is the base name of the option. The shell variable with_NAME
233 dnl will be set either to 'no' (for a plain --without-NAME) or to
234 dnl 'yes' (if the option is not specified). Note that the shell
235 dnl variable name is constructed as autoconf does, by replacing
236 dnl non-alphanumeric characters with "_".
237 dnl HELP-STRING is the help text for the option.
238 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
239 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
240 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
243 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
244 if test "$with_pop" = yes; then
245 AC_DEFINE(MAIL_USE_POP)
247 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
249 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
250 if test "$with_kerberos" != no; then
253 AH_TEMPLATE(KERBEROS,
254 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
256 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
257 if test "${with_kerberos5}" != no; then
258 if test "${with_kerberos}" = no; then
262 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
265 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
266 dnl FIXME hesiod support may not be present, so it seems like an error
267 dnl to define, or at least use, this unconditionally.
268 if test "$with_hesiod" != no; then
269 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
272 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
273 if test "$with_mmdf" != no; then
274 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
277 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
278 if test "$with_mail_unlink" != no; then
279 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
282 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
283 [string giving default POP mail host])],
284 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
286 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
287 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
288 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
289 [ case "${withval}" in
290 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
291 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
292 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
297 [with_sound=$with_features])
299 dnl FIXME currently it is not the last.
300 dnl This should be the last --with option, because --with-x is
301 dnl added later on when we find the file name of X, and it's best to
302 dnl keep them together visually.
303 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
304 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
305 [ case "${withval}" in
306 y | ye | yes ) val=gtk ;;
308 l | lu | luc | luci | lucid ) val=lucid ;;
309 a | at | ath | athe | athen | athena ) val=athena ;;
310 m | mo | mot | moti | motif ) val=motif ;;
311 g | gt | gtk ) val=gtk ;;
315 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
316 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
317 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
318 `athena' and `lucid' are synonyms.])
324 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
325 if test "$with_wide_int" = yes; then
326 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
329 dnl _ON results in a '--without' option in the --help output, so
330 dnl the help text should refer to "don't compile", etc.
331 with_xpm_set=${with_xpm+set}
332 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
333 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
334 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
335 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
336 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
337 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
338 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
339 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
341 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
342 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
343 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
345 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
346 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
347 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
348 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
349 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
351 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
352 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
353 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
354 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
355 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
356 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
357 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
359 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
360 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
361 [ case "${withval}" in
362 y | ye | yes ) val=yes ;;
364 g | gf | gfi | gfil | gfile ) val=gfile ;;
365 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
366 w | w3 | w32 ) val=w32 ;;
367 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
368 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
369 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
370 otherwise for the first of `gfile' or `inotify' that is usable.])
373 with_file_notification=$val
375 [with_file_notification=$with_features])
377 ## For the times when you want to build Emacs but don't have
378 ## a suitable makeinfo, and can live without the manuals.
379 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
380 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
382 ## This might be a 'configure' arg.
383 AC_SUBST([ACLOCAL_PATH])
385 ## Makefile.in needs the cache file name.
388 ## This is an option because I do not know if all info/man support
389 ## compressed files, nor how to test if they do so.
390 OPTION_DEFAULT_ON([compress-install],
391 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
392 make GZIP_PROG= install])
394 AC_ARG_WITH(gameuser,dnl
395 [AS_HELP_STRING([--with-gameuser=USER_OR_GROUP],
396 [user for shared game score files.
397 An argument prefixed by ':' specifies a group instead.])])
400 # We don't test if we can actually chown/chgrp here, because configure
401 # may run without root privileges. lib-src/Makefile.in will handle
402 # any errors due to missing user/group gracefully.
403 case ${with_gameuser} in
405 "" | yes) gamegroup=games ;;
406 :*) gamegroup=`echo "${with_gameuser}" | sed -e "s/://"` ;;
407 *) gameuser=${with_gameuser} ;;
410 AC_ARG_WITH([gnustep-conf],dnl
411 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
412 [name of GNUstep configuration file to use on systems where the command
413 'gnustep-config' does not work; default $GNUSTEP_CONFIG_FILE, or
414 /etc/GNUstep/GNUstep.conf])])
415 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
416 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
417 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
418 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
420 AC_ARG_ENABLE(ns-self-contained,
421 [AS_HELP_STRING([--disable-ns-self-contained],
422 [disable self contained build under NeXTstep])],
423 EN_NS_SELF_CONTAINED=$enableval,
424 EN_NS_SELF_CONTAINED=yes)
427 AC_ARG_ENABLE(locallisppath,
428 [AS_HELP_STRING([--enable-locallisppath=PATH],
429 [directories Emacs should search for lisp files specific
431 if test "${enableval}" = "no"; then
433 elif test "${enableval}" != "yes"; then
434 locallisppath=${enableval} locallisppathset=yes
437 AC_ARG_ENABLE(checking,
438 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
439 [enable expensive run-time checks. With LIST,
440 enable only specific categories of checks.
441 Categories are: all,yes,no.
442 Flags are: stringbytes, stringoverrun, stringfreelist,
443 xmallocoverrun, conslist, glyphs])],
444 [ac_checking_flags="${enableval}"],[])
445 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
446 for check in $ac_checking_flags
449 # these set all the flags to specific states
450 yes) ac_enable_checking=1 ;;
451 no) ac_enable_checking= ;
452 ac_gc_check_stringbytes= ;
453 ac_gc_check_string_overrun= ;
454 ac_gc_check_string_free_list= ;
455 ac_xmalloc_overrun= ;
456 ac_gc_check_cons_list= ;
458 all) ac_enable_checking=1 ;
459 ac_gc_check_stringbytes=1 ;
460 ac_gc_check_string_overrun=1 ;
461 ac_gc_check_string_free_list=1 ;
462 ac_xmalloc_overrun=1 ;
463 ac_gc_check_cons_list=1 ;
465 # these enable particular checks
466 stringbytes) ac_gc_check_stringbytes=1 ;;
467 stringoverrun) ac_gc_check_string_overrun=1 ;;
468 stringfreelist) ac_gc_check_string_free_list=1 ;;
469 xmallocoverrun) ac_xmalloc_overrun=1 ;;
470 conslist) ac_gc_check_cons_list=1 ;;
471 glyphs) ac_glyphs_debug=1 ;;
472 *) AC_MSG_ERROR(unknown check category $check) ;;
477 if test x$ac_enable_checking != x ; then
478 AC_DEFINE(ENABLE_CHECKING, 1,
479 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
481 if test x$ac_gc_check_stringbytes != x ; then
482 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
483 [Define this temporarily to hunt a bug. If defined, the size of
484 strings is redundantly recorded in sdata structures so that it can
485 be compared to the sizes recorded in Lisp strings.])
487 if test x$ac_gc_check_string_overrun != x ; then
488 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
489 [Define this to check for short string overrun.])
491 if test x$ac_gc_check_string_free_list != x ; then
492 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
493 [Define this to check the string free list.])
495 if test x$ac_xmalloc_overrun != x ; then
496 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
497 [Define this to check for malloc buffer overrun.])
499 if test x$ac_gc_check_cons_list != x ; then
500 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
501 [Define this to check for errors in cons list.])
503 if test x$ac_glyphs_debug != x ; then
504 AC_DEFINE(GLYPH_DEBUG, 1,
505 [Define this to enable glyphs debugging code.])
508 AC_ARG_ENABLE(check-lisp-object-type,
509 [AS_HELP_STRING([--enable-check-lisp-object-type],
510 [enable compile time checks for the Lisp_Object data type.
511 This is useful for development for catching certain types of bugs.])],
512 if test "${enableval}" != "no"; then
513 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
514 [Define this to enable compile time checks for the Lisp_Object data type.])
518 dnl The name of this option is unfortunate. It predates, and has no
519 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
520 dnl Actually, it stops it working.
521 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
522 AC_ARG_ENABLE(profiling,
523 [AS_HELP_STRING([--enable-profiling],
524 [build emacs with low-level, gprof profiling support.
525 Mainly useful for debugging Emacs itself. May not work on
526 all platforms. Stops profiler.el working.])],
527 [ac_enable_profiling="${enableval}"],[])
528 if test x$ac_enable_profiling != x ; then
529 PROFILING_CFLAGS="-DPROFILING=1 -pg"
533 AC_SUBST(PROFILING_CFLAGS)
535 AC_ARG_ENABLE(autodepend,
536 [AS_HELP_STRING([--enable-autodepend],
537 [automatically generate dependencies to .h-files.
538 Requires gcc, enabled if found.])],
539 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
541 AC_ARG_ENABLE(gtk-deprecation-warnings,
542 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
543 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
544 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
546 dnl This used to use changequote, but, apart from `changequote is evil'
547 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
548 dnl the great gob of text. Thus it's not processed for possible expansion.
549 dnl Just make sure the brackets remain balanced.
551 dnl Since Emacs can't find matching pairs of quotes, boundaries are
552 dnl indicated by comments.
556 ### If you add support for a new configuration, add code to this
557 ### switch statement to recognize your configuration name and select
558 ### the appropriate opsys.
560 ### As far as handling version numbers on operating systems is
561 ### concerned, make sure things will fail in a fixable way. If
562 ### /etc/MACHINES doesn't say anything about version numbers, be
563 ### prepared to handle anything reasonably. If version numbers
564 ### matter, be sure /etc/MACHINES says something about it.
567 case "${canonical}" in
569 ## GNU/Linux and similar ports
584 ## FreeBSD kernel + glibc based userland
595 *-*-openbsd* | *-*-mirbsd* )
599 ## Apple Darwin / Mac OS X
601 case "${canonical}" in
602 *-apple-darwin[0-9].*) unported=yes ;;
603 i[3456]86-* | x86_64-* ) ;;
607 ## Use fink packages if available.
608 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
609 ## if test -d /sw/include && test -d /sw/lib; then
610 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
611 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
620 ## HP 9000 series 700 and 800, running HP/UX
624 hppa*-hp-hpux1[1-9]* )
626 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
630 rs6000-ibm-aix4.[23]* )
633 powerpc-ibm-aix4.[23]* )
636 rs6000-ibm-aix[56]* )
639 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
643 ## Silicon Graphics machines
647 # Without defining _LANGUAGE_C, things get masked out in the headers
648 # so that, for instance, grepping for `free' in stdlib.h fails and
649 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
650 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
655 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
656 | x86_64-*-solaris2* | x86_64-*-sunos5*)
657 case "${canonical}" in
659 amd64-*-*|x86_64-*-*) ;;
663 case "${canonical}" in
664 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
666 emacs_check_sunpro_c=yes
668 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
669 ## Note that Emacs 23.1's NEWS said the following would be dropped.
670 *-sunos5.6* | *-solaris2.6* )
674 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
675 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
677 emacs_check_sunpro_c=yes
680 ## Watch out for a compiler that we know will not work.
681 case "${canonical}" in
682 *-solaris* | *-sunos5* )
683 if [ "x$CC" = x/usr/ucb/cc ]; then
684 ## /usr/ucb/cc doesn't work;
685 ## we should find some other compiler that does work.
693 ## Intel 386 machines where we don't care about the manufacturer.
695 case "${canonical}" in
696 *-darwin* ) opsys=darwin ;;
699 # MinGW overrides and adds some system headers in nt/inc.
700 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
702 *-sysv4.2uw* ) opsys=unixware ;;
703 *-sysv5uw* ) opsys=unixware ;;
704 *-sysv5OpenUNIX* ) opsys=unixware ;;
705 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
711 case "${canonical}" in
714 # MinGW overrides and adds some system headers in nt/inc.
715 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
717 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
726 ### If the code above didn't choose an operating system, just choose
727 ### an operating system based on the configuration name. You really
728 ### only want to use this when you have no idea what the right
729 ### operating system is; if you know what operating systems a machine
730 ### runs, it's cleaner to make it explicit in the case statement
732 if test x"${opsys}" = x; then
733 case "${canonical}" in
734 *-gnu* ) opsys=gnu ;;
744 if test $unported = yes; then
745 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
746 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
747 Check `etc/MACHINES' for recognized configuration names.])
750 #### Choose a compiler.
752 dnl Don't bother to test for C89.
753 AC_DEFUN([_AC_PROG_CC_C89], [$2])
755 dnl Sets GCC=yes if using gcc.
756 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
757 if test -n "$XCRUN"; then
758 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
759 test -n "$AR" && export AR
762 dnl Emacs needs C99 or later.
767 if test x$GCC = xyes; then
768 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
770 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
773 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
774 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
775 dnl that clash with MinGW.
776 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
778 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
779 AC_DEFUN([gl_CRYPTO_CHECK])
780 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
781 # as we don't use them.
782 AC_DEFUN([gl_FCNTL_O_FLAGS])
783 # Use the system putenv even if it lacks GNU features, as we don't need them,
784 # and the gnulib replacement runs afoul of a FreeBSD 10.1 bug; see Bug#19874.
785 AC_CHECK_FUNCS_ONCE([putenv])
786 AC_DEFUN([gl_FUNC_PUTENV],
787 [test "$ac_cv_func_putenv" = yes || REPLACE_PUTENV=1])
789 # Initialize gnulib right after choosing the compiler.
790 dnl Amongst other things, this sets AR and ARFLAGS.
793 if test "$ac_test_CFLAGS" != set; then
794 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
795 # if -g3 works and the user does not specify CFLAGS.
796 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
799 emacs_g3_CFLAGS='-g3';;
801 emacs_g3_CFLAGS='-g3 -O2';;
805 if test -n "$emacs_g3_CFLAGS"; then
806 emacs_save_CFLAGS=$CFLAGS
807 CFLAGS=$emacs_g3_CFLAGS
808 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
809 [emacs_cv_prog_cc_g3],
810 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
811 [emacs_cv_prog_cc_g3=yes],
812 [emacs_cv_prog_cc_g3=no])])
813 if test $emacs_cv_prog_cc_g3 != yes; then
814 CFLAGS=$emacs_save_CFLAGS
816 if test $opsys = mingw32; then
817 CFLAGS="$CFLAGS -gdwarf-2"
824 # No optimization flag was inferred for this non-GCC compiler.
825 # Try -O. This is needed for xlc on AIX; see Bug#14258.
826 emacs_save_CFLAGS=$CFLAGS
827 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
829 AC_CACHE_CHECK([whether $CC accepts -O],
830 [emacs_cv_prog_cc_o],
831 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
832 [emacs_cv_prog_cc_o=yes],
833 [emacs_cv_prog_cc_o=no])])
834 if test $emacs_cv_prog_cc_o != yes; then
835 CFLAGS=$emacs_save_CFLAGS
840 AC_ARG_ENABLE([gcc-warnings],
841 [AS_HELP_STRING([--enable-gcc-warnings],
842 [turn on lots of GCC warnings/errors. This is intended for
843 developers, and may generate false alarms when used
844 with older or non-GNU development tools.])],
847 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
849 gl_gcc_warnings=$enableval],
853 # clang is unduly picky about some things.
854 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
861 [emacs_cv_clang=yes],
862 [emacs_cv_clang=no])])
864 # When compiling with GCC, prefer -isystem to -I when including system
865 # include files, to avoid generating useless diagnostics for the files.
866 if test "$gl_gcc_warnings" != yes; then
868 if test "$emacs_cv_clang" = yes
870 # Turn off some warnings if supported.
871 gl_WARN_ADD([-Wno-switch])
872 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
873 gl_WARN_ADD([-Wno-pointer-sign])
874 gl_WARN_ADD([-Wno-string-plus-int])
879 # This, $nw, is the list of warnings we disable.
882 case $with_x_toolkit in
883 lucid | athena | motif)
884 # Old toolkits mishandle 'const'.
885 nw="$nw -Wwrite-strings"
888 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
891 AC_SUBST([WERROR_CFLAGS])
893 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
894 nw="$nw -Woverlength-strings" # Not a problem these days
895 nw="$nw -Wformat-nonliteral" # we do this a lot
896 nw="$nw -Wvla" # Emacs uses <vla.h>.
897 nw="$nw -Wswitch-default" # Too many warnings for now
898 nw="$nw -Winline" # OK to ignore 'inline'
899 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
900 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
901 # signed overflow has undefined behavior
902 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
903 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
904 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
906 # Emacs doesn't care about shadowing; see
907 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
910 # Emacs's use of alloca inhibits protecting the stack.
911 nw="$nw -Wstack-protector"
913 # Emacs's use of partly-const functions such as Fgnutls_available_p
914 # make this option problematic.
915 nw="$nw -Wsuggest-attribute=const"
917 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
918 # option problematic.
919 nw="$nw -Wsuggest-attribute=pure"
921 # This part is merely for shortening the command line,
922 # since -Wno-FOO needs to be added below regardless.
923 nw="$nw -Wmissing-field-initializers"
925 nw="$nw -Wtype-limits"
926 nw="$nw -Wunused-parameter"
928 if test $emacs_cv_clang = yes; then
929 nw="$nw -Wcast-align"
932 gl_MANYWARN_ALL_GCC([ws])
933 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
937 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
938 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
939 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
940 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
941 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
942 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
943 gl_WARN_ADD([-Wno-format-nonliteral])
945 # More things that clang is unduly picky about.
946 if test $emacs_cv_clang = yes; then
947 gl_WARN_ADD([-Wno-format-extra-args])
948 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
949 gl_WARN_ADD([-Wno-unused-command-line-argument])
950 gl_WARN_ADD([-Wno-unused-value])
953 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
954 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
955 AH_VERBATIM([GNULIB_PORTCHECK_FORTIFY_SOURCE],
956 [/* Enable compile-time and run-time bounds-checking, and some warnings,
957 without upsetting glibc 2.15+. */
958 #if (defined GNULIB_PORTCHECK && !defined _FORTIFY_SOURCE \
959 && defined __OPTIMIZE__ && __OPTIMIZE__)
960 # define _FORTIFY_SOURCE 2
964 # We use a slightly smaller set of warning options for lib/.
965 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
967 nw="$nw -Wunused-macros"
969 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
970 AC_SUBST([GNULIB_WARN_CFLAGS])
980 AC_ARG_ENABLE(link-time-optimization,
981 [AS_HELP_STRING([--enable-link-time-optimization],
982 [build emacs with link-time optimization.
983 This requires GCC 4.5.0 or later, or clang.
984 (Note that clang support is experimental - see INSTALL.)
985 It also makes Emacs harder to debug, and when we tried it
986 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
987 recommended for typical use.])],
988 if test "${enableval}" != "no"; then
990 if test $emacs_cv_clang = yes; then
991 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
992 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
993 if test -x "$GOLD_PLUGIN"; then
996 elif test x$GCC = xyes; then
997 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
998 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
999 if test x$CPUS != x; then
1005 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
1007 if test -z "$LTO"; then
1011 CFLAGS="$CFLAGS $LTO"
1012 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
1013 [ac_lto_supported=yes], [ac_lto_supported=no])
1014 CFLAGS="$old_CFLAGS"
1016 AC_MSG_RESULT([$ac_lto_supported])
1017 if test "$ac_lto_supported" = "yes"; then
1018 CFLAGS="$CFLAGS $LTO"
1019 if test x$emacs_cv_clang = xyes; then
1020 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
1021 # WARNING: 'ar --plugin ...' doesn't work without
1022 # command, so plugin name is appended to ARFLAGS.
1023 ARFLAGS="cru --plugin $GOLD_PLUGIN"
1024 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
1026 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
1027 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
1028 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
1029 dnl dump core on Fedora 20, so play it safe for now.
1030 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
1031 [CFLAGS="$CFLAGS -ffat-lto-objects"])
1036 dnl Prefer silent make output. For verbose output, use
1037 dnl 'configure --disable-silent-rules' or 'make V=1' .
1038 AM_SILENT_RULES([yes])
1039 dnl Port to Automake 1.11.
1040 dnl This section can be removed once we assume Automake 1.14 or later.
1041 : ${AM_V=$AM_DEFAULT_VERBOSITY}
1042 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
1044 AM_SUBST_NOTMAKE([AM_V])
1045 AC_SUBST([AM_DEFAULT_V])
1046 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1047 AC_SUBST([AM_DEFAULT_VERBOSITY])
1049 dnl Some other nice autoconf tests.
1050 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1053 dnl if test "x$RANLIB" = x; then
1058 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1059 dnl can be made to directories. This is not relevant for our usage, and
1060 dnl excludes some cases that work fine for us. Eg MS Windows or files
1061 dnl hosted on AFS, both examples where simple links work, but links to
1062 dnl directories fail. We use a cut-down version instead.
1065 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1066 rm -f conf$$ conf$$.file
1068 LN_S_FILEONLY='cp -p'
1070 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1071 dnl random program in the current directory.
1072 if (echo >conf$$.file) 2>/dev/null; then
1073 if ln -s conf$$.file conf$$ 2>/dev/null; then
1074 if test "$opsys" = "mingw32"; then
1075 LN_S_FILEONLY='/bin/ln -s'
1077 LN_S_FILEONLY='ln -s'
1079 elif ln conf$$.file conf$$ 2>/dev/null; then
1080 if test "$opsys" = "mingw32"; then
1081 LN_S_FILEONLY=/bin/ln
1088 rm -f conf$$ conf$$.file
1090 if test "$LN_S_FILEONLY" = "ln -s"; then
1091 AC_MSG_RESULT([yes])
1093 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1096 AC_SUBST(LN_S_FILEONLY)
1099 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1100 dnl doesn't support links to directories, as in "ln file dir". But that
1101 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1102 dnl executables at "make install" time.
1103 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1104 dnl for more details.
1105 if test "$opsys" = "mingw32"; then
1109 dnl On some Debian versions, "install-info" prints irritating messages
1110 dnl "This is not dpkg install-info anymore, but GNU install-info"
1111 dnl if called via an absolute file name.
1112 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1113 dnl Sadly some people may have an old ginstall-info installed on
1114 dnl non-Debian systems, so we can't use this.
1115 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1116 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1118 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1119 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1120 dnl Don't use GZIP, which is used by gzip for additional parameters.
1121 AC_PATH_PROG(GZIP_PROG, gzip)
1123 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1124 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1126 if test $opsys = gnu-linux; then
1127 AC_PATH_PROG(PAXCTL, paxctl,,
1128 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1129 if test "X$PAXCTL" != X; then
1130 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1131 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1132 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1133 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1136 if test "${SETFATTR+set}" != set; then
1137 AC_CACHE_CHECK([for setfattr],
1138 [emacs_cv_prog_setfattr],
1140 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1141 emacs_cv_prog_setfattr=yes
1143 emacs_cv_prog_setfattr=no
1145 if test "$emacs_cv_prog_setfattr" = yes; then
1151 AC_SUBST([SETFATTR])
1155 ## Need makeinfo >= 4.7 (?) to build the manuals.
1156 if test "$MAKEINFO" != "no"; then
1157 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1160 case `($MAKEINFO --version) 2>/dev/null` in
1161 *' (GNU texinfo) '4.[[7-9]]* | \
1162 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1163 *' (GNU texinfo) '[[5-9]]* | \
1164 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1169 ## Makeinfo is unusual. For a released Emacs, the manuals are
1170 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1171 ## therefore in the category of "special tools" not normally required, which
1172 ## configure does not have to check for (eg autoconf itself).
1173 ## In a repository checkout on the other hand, the manuals are not included.
1174 ## So makeinfo is a requirement to build from the repository, and configure
1175 ## should test for it as it does for any other build requirement.
1176 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1177 ## with pre-built manuals, from a repository checkout.
1180 if test "$MAKEINFO" = "no"; then
1182 if test "x${with_makeinfo}" = "xno"; then
1184 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1185 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1186 source tree does not seem to have pre-built manuals in the `info' directory.
1187 Either install a suitable version of makeinfo, or re-run configure
1188 with the `--without-makeinfo' option to build without the manuals.] )
1191 AC_SUBST(HAVE_MAKEINFO)
1193 if test $opsys = mingw32; then
1194 DOCMISC_W32=efaq-w32
1198 AC_SUBST(DOCMISC_W32)
1200 dnl Add our options to ac_link now, after it is set up.
1202 if test x$GCC = xyes; then
1203 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1204 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1206 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1207 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1210 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1211 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1212 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1213 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1214 dnl if not built to support GNU ld.
1216 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1217 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1218 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1219 dnl Eg "make LDFLAGS=... all" could run into problems,
1220 dnl http://bugs.debian.org/684788
1221 dnl * unnecessary, since temacs is the only thing that actually needs it.
1222 dnl Indeed this is where it was originally, prior to:
1223 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1224 late_LDFLAGS="$LDFLAGS"
1225 if test x$GCC = xyes; then
1226 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1228 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1231 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1233 AC_MSG_CHECKING([for -znocombreloc])
1234 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1235 [AC_MSG_RESULT(yes)],
1236 LDFLAGS_NOCOMBRELOC=
1237 [AC_MSG_RESULT(no)])
1239 LDFLAGS="$late_LDFLAGS"
1241 AC_CACHE_CHECK([whether addresses are sanitized],
1242 [emacs_cv_sanitize_address],
1245 [[#ifndef __has_feature
1246 #define __has_feature(f) 0
1248 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1250 error "Addresses are not sanitized.";
1253 [emacs_cv_sanitize_address=yes],
1254 [emacs_cv_sanitize_address=no])])
1256 dnl The function dump-emacs will not be defined and temacs will do
1257 dnl (load "loadup") automatically unless told otherwise.
1258 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1260 your-opsys-here) CANNOT_DUMP=yes ;;
1263 if test "$CANNOT_DUMP" = "yes"; then
1264 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1265 elif test "$emacs_cv_sanitize_address" = yes; then
1266 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1269 AC_SUBST(CANNOT_DUMP)
1272 UNEXEC_OBJ=unexelf.o
1274 # MSDOS uses unexcoff.o
1276 UNEXEC_OBJ=unexaix.o
1282 UNEXEC_OBJ=unexmacosx.o
1285 UNEXEC_OBJ=unexhp9k800.o
1288 UNEXEC_OBJ=unexw32.o
1291 # Use the Solaris dldump() function, called from unexsol.c, to dump
1292 # emacs, instead of the generic ELF dump code found in unexelf.c.
1293 # The resulting binary has a complete symbol table, and is better
1294 # for debugging and other observability tools (debuggers, pstack, etc).
1296 # If you encounter a problem using dldump(), please consider sending
1297 # a message to the OpenSolaris tools-linking mailing list:
1298 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1300 # It is likely that dldump() works with older Solaris too, but this has
1301 # not been tested, so for now this change is for Solaris 10 or newer.
1302 UNEXEC_OBJ=unexsol.o
1309 ## Let `ld' find image libs and similar things in /usr/local/lib.
1310 ## The system compiler, GCC, has apparently been modified to not
1311 ## look there, contrary to what a stock GCC would do.
1312 ### It's not our place to do this. See bug#10313#17.
1313 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1318 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1319 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1323 ### It's not our place to do this. See bug#10313#17.
1324 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1329 ## Han Boetes <han@boetes.org> says this is necessary,
1330 ## otherwise Emacs dumps core on elf systems.
1331 LD_SWITCH_SYSTEM="-Z"
1334 AC_SUBST(LD_SWITCH_SYSTEM)
1336 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1338 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1339 ## which has not been defined yet. When this was handled with cpp,
1340 ## it was expanded to null when configure sourced the s/*.h file.
1341 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1342 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1343 ## (or somesuch), but because it is supposed to go at the _front_
1344 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1345 ## Compare with the gnu-linux case below, which added to the end
1346 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1347 ## LD_SWITCH_SYSTEM_TEMACS.
1350 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1357 AC_CHECK_DECL([__ELF__])
1358 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1359 ## With ELF, make sure that all common symbols get allocated to in the
1360 ## data section. Otherwise, the dump of temacs may miss variables in
1361 ## the shared library that have been initialized. For example, with
1362 ## GNU libc, __malloc_initialized would normally be resolved to the
1363 ## shared library's .bss section, which is fatal.
1364 if test "x$GCC" = "xyes"; then
1365 C_SWITCH_MACHINE="-fno-common"
1367 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1370 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1371 dnl albeit under the mistaken assumption that said file
1372 dnl was no longer used.
1373 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1377 AC_SUBST(C_SWITCH_MACHINE)
1379 AC_SUBST(UNEXEC_OBJ)
1382 ## Some programs in src produce warnings saying certain subprograms
1383 ## are too complex and need a MAXMEM value greater than 2000 for
1384 ## additional optimization. --nils@exp-math.uni-essen.de
1385 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1386 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1387 if test "$opsys" = "mingw32"; then
1388 case "$canonical" in
1389 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1390 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1393 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1394 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1395 AC_SUBST(C_SWITCH_SYSTEM)
1400 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1401 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1403 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1405 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1407 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1409 ## Motif needs -lgen.
1410 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1413 AC_SUBST(LIBS_SYSTEM)
1415 ### Make sure subsequent tests use flags consistent with the build flags.
1417 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1418 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1420 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1423 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1424 AC_DEFUN([AC_TYPE_SIZE_T])
1425 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1426 AC_DEFUN([AC_TYPE_UID_T])
1428 # sqrt and other floating-point functions such as fmod and frexp
1429 # are found in -lm on many systems.
1431 AC_SEARCH_LIBS([sqrt], [m])
1432 if test "X$LIBS" = "X$OLD_LIBS"; then
1435 LIB_MATH=$ac_cv_search_sqrt
1439 dnl Current possibilities handled by sed (aix4-2 -> aix,
1440 dnl gnu-linux -> gnu/linux, etc.):
1441 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1442 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1443 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1450 ## Adding -lm confuses the dynamic linker, so omit it.
1453 freebsd | dragonfly )
1454 SYSTEM_TYPE=berkeley-unix
1456 gnu-linux | gnu-kfreebsd )
1458 hpux10-20 | hpux11 )
1462 SYSTEM_TYPE=windows-nt
1464 dnl NB this may be adjusted below.
1466 SYSTEM_TYPE=berkeley-unix
1470 SYSTEM_TYPE=usg-unix-v
1476 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1477 [The type of system you are compiling for; sets `system-type'.])
1480 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1481 pre_PKG_CONFIG_LIBS=$LIBS
1483 PKG_PROG_PKG_CONFIG(0.9.0)
1485 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1486 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1487 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1488 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1489 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1490 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1492 AC_DEFUN([EMACS_CHECK_MODULES],
1493 [PKG_CHECK_MODULES([$1], [$2],
1494 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1495 m4_default([$3], [HAVE_$1=yes])],
1496 [m4_default([$4], [HAVE_$1=no])])])
1499 if test "${with_sound}" != "no"; then
1500 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1501 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1502 have_sound_header=yes, [], [
1504 #define WIN32_LEAN_AND_MEAN
1505 #include <windows.h>
1508 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1509 AC_MSG_ERROR([OSS sound support requested but not found.])
1511 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1512 # Emulation library used on NetBSD.
1513 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1514 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1515 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1516 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1517 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1521 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1523 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1524 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1525 if test $HAVE_ALSA = yes; then
1526 SAVE_CFLAGS="$CFLAGS"
1528 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1529 LIBS="$ALSA_LIBS $LIBS"
1530 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1531 emacs_alsa_normal=yes,
1532 emacs_alsa_normal=no)
1533 if test "$emacs_alsa_normal" != yes; then
1534 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1535 [[snd_lib_error_set_handler (0);]])],
1536 emacs_alsa_subdir=yes,
1537 emacs_alsa_subdir=no)
1538 if test "$emacs_alsa_subdir" != yes; then
1539 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1541 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1544 CFLAGS="$SAVE_CFLAGS"
1546 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1547 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1548 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1549 elif test "${with_sound}" = "alsa"; then
1550 AC_MSG_ERROR([ALSA sound support requested but not found.])
1552 fi dnl with_sound = alsa|yes
1554 dnl Define HAVE_SOUND if we have sound support. We know it works and
1555 dnl compiles only on the specified platforms. For others, it
1556 dnl probably doesn't make sense to try.
1557 dnl FIXME So surely we should bypass this whole section if not using
1558 dnl one of these platforms?
1559 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1561 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1562 dnl Adjust the --with-sound help text if you change this.
1563 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1564 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1570 AC_SUBST(CFLAGS_SOUND)
1573 dnl checks for header files
1574 AC_CHECK_HEADERS_ONCE(
1579 sys/utsname.h pwd.h utmp.h util.h)
1581 AC_MSG_CHECKING(if personality LINUX32 can be set)
1582 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1583 emacs_cv_personality_linux32=yes,
1584 emacs_cv_personality_linux32=no)
1585 AC_MSG_RESULT($emacs_cv_personality_linux32)
1587 if test $emacs_cv_personality_linux32 = yes; then
1588 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1589 [Define to 1 if personality LINUX32 can be set.])
1592 # Note that Solaris has sys/sysinfo.h which defines struct
1593 # sysinfo as well. To make sure that we're using GNU/Linux
1594 # sysinfo, we explicitly set one of its fields.
1595 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1596 AC_MSG_CHECKING([if Linux sysinfo may be used])
1597 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1598 [[struct sysinfo si;
1601 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1602 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1603 if test $emacs_cv_linux_sysinfo = yes; then
1604 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1605 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1606 [[struct sysinfo si; return si.mem_unit]])],
1607 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1608 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1612 dnl On Solaris 8 there's a compilation warning for term.h because
1613 dnl it doesn't define `bool'.
1614 AC_CHECK_HEADERS(term.h, , , -)
1616 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1618 if test $ac_cv_have_decl_sys_siglist != yes; then
1619 # For Tru64, at least:
1620 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1625 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1626 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1627 #if HAVE_SYS_SOCKET_H
1628 #include <sys/socket.h>
1630 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1631 #if HAVE_SYS_SOCKET_H
1632 #include <sys/socket.h>
1634 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1635 #if HAVE_SYS_SOCKET_H
1636 #include <sys/socket.h>
1639 dnl checks for structure members
1640 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1641 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1642 struct ifreq.ifr_addr,
1643 struct ifreq.ifr_addr.sa_len], , ,
1644 [AC_INCLUDES_DEFAULT
1645 #if HAVE_SYS_SOCKET_H
1646 #include <sys/socket.h>
1652 dnl Check for endianness.
1653 dnl AC_C_BIGENDIAN is done by gnulib.
1655 dnl check for Make feature
1660 dnl check if we have GCC and autodepend is on.
1661 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1662 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1663 SAVE_CFLAGS="$CFLAGS"
1664 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1665 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1666 CFLAGS="$SAVE_CFLAGS"
1667 test -f deps.d || ac_enable_autodepend=no
1669 AC_MSG_RESULT([$ac_enable_autodepend])
1670 if test $ac_enable_autodepend = yes; then
1671 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1672 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1673 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1674 deps_frag=autodeps.mk
1677 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1678 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1679 deps_frag=$srcdir/src/$deps_frag
1682 AC_SUBST_FILE(deps_frag)
1683 AC_SUBST_FILE(lwlib_deps_frag)
1684 AC_SUBST_FILE(oldxmenu_deps_frag)
1686 lisp_frag=$srcdir/src/lisp.mk
1687 AC_SUBST_FILE(lisp_frag)
1690 dnl checks for operating system services
1691 AC_SYS_LONG_FILE_NAMES
1693 #### Choose a window system.
1695 ## We leave window_system equal to none if
1696 ## we end up building without one. Any new window system should
1697 ## set window_system to an appropriate value and add objects to
1698 ## window-system-specific substs.
1702 if test "$no_x" != yes; then
1706 LD_SWITCH_X_SITE_RPATH=
1707 if test "${x_libraries}" != NONE; then
1708 if test -n "${x_libraries}"; then
1709 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1710 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1712 x_default_search_path=""
1713 x_search_path=${x_libraries}
1714 if test -z "${x_search_path}"; then
1715 x_search_path=/usr/lib
1717 for x_library in `echo ${x_search_path}: | \
1718 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1720 ${x_library}/X11/%L/%T/%N%C%S:\
1721 ${x_library}/X11/%l/%T/%N%C%S:\
1722 ${x_library}/X11/%T/%N%C%S:\
1723 ${x_library}/X11/%L/%T/%N%S:\
1724 ${x_library}/X11/%l/%T/%N%S:\
1725 ${x_library}/X11/%T/%N%S"
1726 if test x"${x_default_search_path}" = x; then
1727 x_default_search_path=${x_search_path}
1729 x_default_search_path="${x_search_path}:${x_default_search_path}"
1733 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1735 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1736 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1739 if test x"${x_includes}" = x; then
1740 bitmapdir=/usr/include/X11/bitmaps
1742 # accumulate include directories that have X11 bitmap subdirectories
1744 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1745 if test -d "${bmd}/X11/bitmaps"; then
1746 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1748 if test -d "${bmd}/bitmaps"; then
1749 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1752 if test ${bmd_acc} != "dummyval"; then
1753 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1758 NS_GNUSTEP_CONFIG=no
1761 tmp_CPPFLAGS="$CPPFLAGS"
1762 tmp_CFLAGS="$CFLAGS"
1763 CPPFLAGS="$CPPFLAGS -x objective-c"
1764 CFLAGS="$CFLAGS -x objective-c"
1767 if test "${with_ns}" != no; then
1768 if test "${opsys}" = darwin; then
1770 ns_appdir=`pwd`/nextstep/Emacs.app
1771 ns_appbindir=${ns_appdir}/Contents/MacOS
1772 ns_appresdir=${ns_appdir}/Contents/Resources
1773 ns_appsrc=Cocoa/Emacs.base
1774 ns_fontfile=macfont.o
1775 elif flags=$( (gnustep-config --objc-flags) 2>/dev/null); then
1777 NS_GNUSTEP_CONFIG=yes
1778 GNU_OBJC_CFLAGS=$flags
1779 LIBS_GNUSTEP=$(gnustep-config --gui-libs) || exit
1780 elif test -f $GNUSTEP_CONFIG_FILE; then
1782 dnl FIXME sourcing this several times in subshells seems inefficient.
1783 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1784 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1785 dnl I seemed to need these as well with GNUstep-startup 0.25.
1786 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1787 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1788 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1789 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1790 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1791 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1792 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1793 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1794 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1795 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1796 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1797 dnl If they had chosen to either define it or not, we could have
1798 dnl just used AC_CHECK_DECL here.
1799 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1800 emacs_cv_objc_exceptions,
1801 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1802 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1806 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1807 if test $emacs_cv_objc_exceptions = yes; then
1808 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1809 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1810 [Define if GNUstep uses ObjC exceptions.])
1811 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1814 if test $NS_IMPL_GNUSTEP = yes; then
1815 ns_appdir=`pwd`/nextstep/Emacs.app
1816 ns_appbindir=${ns_appdir}
1817 ns_appresdir=${ns_appdir}/Resources
1818 ns_appsrc=GNUstep/Emacs.base
1819 ns_fontfile=nsfont.o
1822 dnl This is only used while we test the NS headers, it gets reset below.
1823 CPPFLAGS="$CPPFLAGS $GNU_OBJC_CFLAGS"
1824 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1826 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1827 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1828 files are missing or cannot be compiled.])])
1831 if test "${NS_IMPL_COCOA}" = "yes"; then
1832 AC_MSG_CHECKING([for OSX 10.6 or newer])
1833 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1835 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1836 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1839 error "OSX 10.6 or newer required";
1843 ns_osx_have_106=yes,
1845 AC_MSG_RESULT([$ns_osx_have_106])
1847 if test $ns_osx_have_106 = no; then
1848 AC_MSG_ERROR([`OSX 10.6 or newer is required']);
1853 AC_SUBST(LIBS_GNUSTEP)
1855 INSTALL_ARCH_INDEP_EXTRA=install-etc
1856 ns_self_contained=no
1859 if test "${HAVE_NS}" = yes; then
1860 if test "$with_toolkit_scroll_bars" = "no"; then
1861 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1864 window_system=nextstep
1865 # set up packaging dirs
1866 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1867 ns_self_contained=yes
1868 prefix=${ns_appresdir}
1869 exec_prefix=${ns_appbindir}
1870 dnl This one isn't really used, only archlibdir is.
1871 libexecdir="\${ns_appbindir}/libexec"
1872 archlibdir="\${ns_appbindir}/libexec"
1873 etcdocdir="\${ns_appresdir}/etc"
1874 etcdir="\${ns_appresdir}/etc"
1875 dnl FIXME maybe set datarootdir instead.
1876 dnl That would also get applications, icons, man.
1877 infodir="\${ns_appresdir}/info"
1878 mandir="\${ns_appresdir}/man"
1879 lispdir="\${ns_appresdir}/lisp"
1880 test "$locallisppathset" = no && locallisppath=""
1881 INSTALL_ARCH_INDEP_EXTRA=
1884 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1886 CFLAGS="$tmp_CFLAGS"
1887 CPPFLAGS="$tmp_CPPFLAGS"
1888 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1889 AC_SUBST(ns_self_contained)
1891 AC_SUBST(NS_OBJC_OBJ)
1902 if test "${with_w32}" != no; then
1905 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1906 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1907 cannot be found.])])
1910 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1913 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1918 if test "${opsys}" = "mingw32"; then
1919 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1920 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1921 #include <windows.h>
1922 #include <usp10.h>]],
1923 [[PIMAGE_NT_HEADERS pHeader;
1924 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1925 [emacs_cv_w32api=yes
1928 AC_MSG_RESULT($emacs_cv_w32api)
1929 if test "${emacs_cv_w32api}" = "no"; then
1930 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1941 if test "${HAVE_W32}" = "yes"; then
1942 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1943 if test "$with_toolkit_scroll_bars" = "no"; then
1944 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for w32 build.])
1946 AC_CHECK_TOOL(WINDRES, [windres],
1947 [AC_MSG_ERROR([No resource compiler found.])])
1948 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1949 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1950 EMACSRES="emacs.res"
1951 case "$canonical" in
1952 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1953 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1955 dnl Construct something of the form "24,4,0,0" with 4 components.
1956 comma_version=`echo "${PACKAGE_VERSION}.0.0" | sed -e 's/\./,/g' -e 's/^\([[^,]]*,[[^,]]*,[[^,]]*,[[^,]]*\).*/\1/'`
1958 comma_space_version=`echo "$comma_version" | sed 's/,/, /g'`
1959 AC_SUBST(comma_version)
1960 AC_SUBST(comma_space_version)
1961 AC_CONFIG_FILES([nt/emacs.rc nt/emacsclient.rc])
1962 if test "${opsys}" = "cygwin"; then
1963 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1964 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1965 # Tell the linker that emacs.res is an object (which we compile from
1966 # the rc file), not a linker script.
1967 W32_RES_LINK="-Wl,emacs.res"
1969 UPDATE_MANIFEST=update-game-score.exe.manifest
1970 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1971 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1972 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1973 W32_RES_LINK="\$(EMACSRES)"
1974 CLIENTRES="emacsclient.res"
1975 CLIENTW="emacsclientw\$(EXEEXT)"
1976 FIRSTFILE_OBJ=firstfile.o
1979 LIBS_ECLIENT="-lcomctl32"
1980 LIB_WSOCK32="-lwsock32"
1981 NTLIB="ntlib.$ac_objext"
1982 XARGS_LIMIT="-s 10000"
1988 AC_SUBST(EMACS_MANIFEST)
1989 AC_SUBST(UPDATE_MANIFEST)
1992 AC_SUBST(W32_RES_LINK)
1993 AC_SUBST(FIRSTFILE_OBJ)
1996 AC_SUBST(LIBS_ECLIENT)
1997 AC_SUBST(LIB_WSOCK32)
1999 AC_SUBST(XARGS_LIMIT)
2001 if test "${HAVE_W32}" = "yes"; then
2006 ## $window_system is now set to the window system we will
2009 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
2010 # Too many warnings for now.
2012 nw="$nw -Wsuggest-attribute=noreturn"
2013 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
2015 gl_WARN_ADD([-Wno-unused-variable])
2016 gl_WARN_ADD([-Wno-unused-but-set-variable])
2017 gl_WARN_ADD([-Wno-unused-but-set-parameter])
2025 case "${window_system}" in
2030 case "${with_x_toolkit}" in
2031 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
2032 motif ) USE_X_TOOLKIT=MOTIF ;;
2034 term_header=gtkutil.h
2035 dnl Don't set this for GTK. A lot of tests below assumes Xt when
2036 dnl USE_X_TOOLKIT is set.
2037 USE_X_TOOLKIT=none ;;
2038 gtk2 ) with_gtk2=yes
2039 term_header=gtkutil.h
2040 USE_X_TOOLKIT=none ;;
2041 gtk3 ) with_gtk3=yes
2042 term_header=gtkutil.h
2043 USE_X_TOOLKIT=none ;;
2044 no ) USE_X_TOOLKIT=none ;;
2045 dnl If user did not say whether to use a toolkit, make this decision later:
2046 dnl use the toolkit if we have gtk, or X11R5 or newer.
2047 * ) USE_X_TOOLKIT=maybe ;;
2051 term_header=nsterm.h
2054 term_header=w32term.h
2058 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2059 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2060 if test "$HAVE_XSERVER" = true ||
2061 test -n "$DISPLAY" ||
2062 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
2063 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2064 were found. You should install the relevant development files for X
2065 and for the toolkit you want, such as Gtk+ or Motif. Also make
2066 sure you have development files for image handling, i.e.
2067 tiff, gif, jpeg, png and xpm.
2068 If you are sure you want Emacs compiled without X window support, pass
2074 # Does the opsystem file prohibit the use of the GNU malloc?
2075 # Assume not, until told otherwise.
2079 [whether malloc is Doug Lea style],
2080 [emacs_cv_var_doug_lea_malloc],
2081 [emacs_cv_var_doug_lea_malloc=no
2082 dnl Hooks do not work with address sanitization.
2083 if test "$emacs_cv_sanitize_address" != yes; then
2086 [[#include <malloc.h>
2087 static void hook (void) {}]],
2088 [[malloc_set_state (malloc_get_state ());
2089 __after_morecore_hook = hook;
2090 __malloc_initialize_hook = hook;]])],
2091 [emacs_cv_var_doug_lea_malloc=yes])])
2093 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2095 system_malloc=$emacs_cv_sanitize_address
2100 ## darwin ld insists on the use of malloc routines in the System framework.
2101 darwin|mingw32|sol2-10) system_malloc=yes ;;
2102 cygwin) hybrid_malloc=yes;;
2106 if test "${system_malloc}" = "yes"; then
2107 AC_DEFINE([SYSTEM_MALLOC], 1,
2108 [Define to 1 to use the system memory allocator, even if it is not
2112 (The GNU allocators don't work with this system configuration.)"
2114 elif test "$hybrid_malloc" = yes; then
2115 AC_DEFINE(HYBRID_MALLOC, 1,
2116 [Define to use gmalloc before dumping and the system malloc after.])
2118 GNU_MALLOC_reason="only before dumping"
2119 GMALLOC_OBJ=gmalloc.o
2122 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2123 VMLIMIT_OBJ=vm-limit.o
2125 AC_CHECK_HEADERS([sys/vlimit.h])
2126 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2129 [[extern char data_start[]; char ch;]],
2130 [[return data_start < &ch;]])],
2131 [emacs_cv_data_start=yes],
2132 [emacs_cv_data_start=no])])
2133 if test $emacs_cv_data_start = yes; then
2134 AC_DEFINE([HAVE_DATA_START], 1,
2135 [Define to 1 if data_start is the address of the start
2136 of the main data segment.])
2139 AC_SUBST(GMALLOC_OBJ)
2140 AC_SUBST(VMLIMIT_OBJ)
2142 if test "$doug_lea_malloc" = "yes" ; then
2143 if test "$GNU_MALLOC" = yes ; then
2145 (Using Doug Lea's new malloc from the GNU C Library.)"
2147 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2148 [Define to 1 if the system memory allocator is Doug Lea style,
2149 with malloc hooks and malloc_set_state.])
2151 ## Use mmap directly for allocating larger buffers.
2152 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2153 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2154 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2156 mingw32|gnu*) REL_ALLOC=no ;;
2160 if test x"${REL_ALLOC}" = x; then
2161 REL_ALLOC=${GNU_MALLOC}
2164 use_mmap_for_buffers=no
2166 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2170 if test $use_mmap_for_buffers = yes; then
2171 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2175 LIBS="$LIBS_SYSTEM $LIBS"
2177 dnl FIXME replace main with a function we actually want from this library.
2178 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2180 dnl Check for the POSIX thread library.
2182 if test "$opsys" != "mingw32"; then
2183 AC_CHECK_HEADERS_ONCE(pthread.h)
2184 if test "$ac_cv_header_pthread_h"; then
2185 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2186 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2187 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2188 if test "$GMALLOC_OBJ" = gmalloc.o; then
2189 emacs_pthread_function=pthread_atfork
2191 emacs_pthread_function=pthread_kill
2194 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2195 [AC_DEFINE([HAVE_PTHREAD], [1],
2196 [Define to 1 if you have pthread (-lpthread).])
2197 # Some systems optimize for single-threaded programs by default, and
2198 # need special flags to disable these optimizations. For example, the
2199 # definition of 'errno' in <errno.h>.
2202 AC_DEFINE([_REENTRANT], 1,
2203 [Define to 1 if your system requires this in multithreaded code.]);;
2205 AC_DEFINE([_THREAD_SAFE], 1,
2206 [Define to 1 if your system requires this in multithreaded code.]);;
2208 if test "X$LIBS" != "X$OLD_LIBS"; then
2209 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2213 AC_SUBST([LIB_PTHREAD])
2216 dnl Check for need for bigtoc support on IBM AIX
2220 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2222 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2223 *) gdb_cv_bigtoc=-bbigtoc ;;
2226 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2227 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2232 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2233 # is for the tests that follow. We set them back later on.
2235 REAL_CFLAGS="$CFLAGS"
2236 REAL_CPPFLAGS="$CPPFLAGS"
2239 if test "${HAVE_X11}" = "yes"; then
2240 DEFS="$C_SWITCH_X_SITE $DEFS"
2241 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2243 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2244 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2246 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2247 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2248 # but it's more convenient here to set LD_RUN_PATH since this
2249 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2250 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2251 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2255 if test "${opsys}" = "gnu-linux"; then
2256 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2257 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2258 [[XOpenDisplay ("foo");]])],
2259 [xgnu_linux_first_failure=no],
2260 [xgnu_linux_first_failure=yes])
2261 if test "${xgnu_linux_first_failure}" = "yes"; then
2262 OLD_CPPFLAGS="$CPPFLAGS"
2264 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2265 LIBS="$LIBS -b i486-linuxaout"
2266 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2267 [[XOpenDisplay ("foo");]])],
2268 [xgnu_linux_second_failure=no],
2269 [xgnu_linux_second_failure=yes])
2270 if test "${xgnu_linux_second_failure}" = "yes"; then
2271 # If we get the same failure with -b, there is no use adding -b.
2272 # So leave it out. This plays safe.
2275 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2276 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2279 CPPFLAGS=$OLD_CPPFLAGS
2286 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2287 # header files included from there.
2288 AC_MSG_CHECKING(for Xkb)
2289 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2290 #include <X11/XKBlib.h>]],
2291 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2292 emacs_xkb=yes, emacs_xkb=no)
2293 AC_MSG_RESULT($emacs_xkb)
2294 if test $emacs_xkb = yes; then
2295 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2298 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2299 XScreenNumberOfScreen)
2302 if test "${window_system}" = "x11"; then
2303 AC_MSG_CHECKING(X11 version 6)
2304 AC_CACHE_VAL(emacs_cv_x11_version_6,
2305 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2306 [[#if XlibSpecificationRelease < 6
2309 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2310 if test $emacs_cv_x11_version_6 = yes; then
2311 AC_MSG_RESULT(6 or newer)
2312 AC_DEFINE(HAVE_X11R6, 1,
2313 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2314 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2315 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2319 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2320 [Define if you have usable X11R6-style XIM support.])
2324 AC_MSG_RESULT(before 6)
2329 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2331 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2332 if test "${with_rsvg}" != "no"; then
2333 RSVG_REQUIRED=2.11.0
2334 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2336 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2337 AC_SUBST(RSVG_CFLAGS)
2340 if test $HAVE_RSVG = yes; then
2341 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2342 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2343 # Windows loads librsvg dynamically
2344 if test "${opsys}" = "mingw32"; then
2352 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2353 if test "${with_imagemagick}" != "no"; then
2354 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2355 ## 6.8.2 makes Emacs crash; see Bug#13867.
2356 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2357 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2358 AC_SUBST(IMAGEMAGICK_CFLAGS)
2359 AC_SUBST(IMAGEMAGICK_LIBS)
2361 if test $HAVE_IMAGEMAGICK = yes; then
2362 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2365 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2366 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2367 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2377 gtk_term_header=$term_header
2380 if test "${opsys}" != "mingw32"; then
2381 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2384 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2386 dnl Checks for libraries.
2387 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2388 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2389 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2390 AC_MSG_ERROR($GTK_PKG_ERRORS)
2392 if test "$pkg_check_gtk" = "yes"; then
2393 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2394 GTK_OBJ=emacsgtkfixed.o
2395 gtk_term_header=gtkutil.h
2396 USE_GTK_TOOLKIT="GTK3"
2397 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2398 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2399 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2400 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2401 [Define to 1 to disable Glib deprecation warnings.])
2405 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2409 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2412 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2414 dnl Checks for libraries.
2415 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2416 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2417 if test "$pkg_check_gtk" = "no" &&
2418 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2420 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2422 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2429 if test x"$pkg_check_gtk" = xyes; then
2432 CFLAGS="$CFLAGS $GTK_CFLAGS"
2433 LIBS="$GTK_LIBS $LIBS"
2434 dnl Try to compile a simple GTK program.
2435 AC_MSG_CHECKING([whether GTK compiles])
2439 [[/* Check the Gtk and Glib APIs. */
2440 #include <gtk/gtk.h>
2441 #include <glib-object.h>
2443 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2447 GtkSettings *gs = 0;
2448 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2449 strict C prohibits this. Use gtk_main_iteration to test that the
2450 libraries are there. */
2451 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2452 0, 0, 0, G_CALLBACK (callback), 0))
2453 gtk_main_iteration ();
2456 AC_MSG_RESULT([$GTK_COMPILES])
2457 if test "${GTK_COMPILES}" != "yes"; then
2459 if test "$USE_X_TOOLKIT" != "maybe"; then
2460 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2463 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2465 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2466 GTK_OBJ="gtkutil.o $GTK_OBJ"
2467 term_header=$gtk_term_header
2469 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2472 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2473 closing open displays. This is no problem if you just use
2474 one display, but if you use more than one and close one of them
2484 if test "${HAVE_GTK}" = "yes"; then
2486 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2487 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2488 if test "$with_toolkit_scroll_bars" != no; then
2489 with_toolkit_scroll_bars=yes
2492 dnl Check if we have the old file selection dialog declared and
2493 dnl in the link library. In 2.x it may be in the library,
2494 dnl but not declared if deprecated featured has been selected out.
2495 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2496 HAVE_GTK_FILE_SELECTION=no
2497 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2498 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2499 #include <gtk/gtk.h>])
2500 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2501 AC_CHECK_FUNCS(gtk_file_selection_new)
2504 dnl Same as above for gtk_handle_box.
2505 HAVE_GTK_HANDLE_BOX=no
2506 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2507 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2508 #include <gtk/gtk.h>])
2509 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2510 AC_CHECK_FUNCS(gtk_handle_box_new)
2513 dnl Same as above for gtk_tearoff_menu_item.
2514 HAVE_GTK_TEAROFF_MENU_ITEM=no
2515 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2516 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2517 #include <gtk/gtk.h>])
2518 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2519 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2522 dnl Check for functions introduced in 2.14 and later.
2523 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2524 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2525 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2526 gtk_orientable_set_orientation \
2527 gtk_window_set_has_resize_grip)
2529 term_header=gtkutil.h
2535 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2536 dnl other platforms.
2539 if test "${with_dbus}" = "yes"; then
2540 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2541 if test "$HAVE_DBUS" = yes; then
2542 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2543 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2544 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2547 LIBS="$LIBS $DBUS_LIBS"
2548 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2549 dbus_type_is_valid \
2550 dbus_validate_bus_name \
2551 dbus_validate_path \
2552 dbus_validate_interface \
2553 dbus_validate_member)
2558 AC_SUBST(DBUS_CFLAGS)
2562 dnl GSettings has been tested under GNU/Linux only.
2564 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2565 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2566 if test "$HAVE_GSETTINGS" = "yes"; then
2568 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2570 LIBS="$LIBS $GSETTINGS_LIBS"
2571 AC_MSG_CHECKING([whether GSettings is in gio])
2574 [[/* Check that gsettings really is present. */
2575 #include <glib-object.h>
2576 #include <gio/gio.h>
2579 GSettings *settings;
2580 GVariant *val = g_settings_get_value (settings, "");
2582 [], HAVE_GSETTINGS=no)
2583 AC_MSG_RESULT([$HAVE_GSETTINGS])
2585 if test "$HAVE_GSETTINGS" = "yes"; then
2586 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2587 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2588 SETTINGS_LIBS="$GSETTINGS_LIBS"
2595 dnl GConf has been tested under GNU/Linux only.
2596 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2598 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2599 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2600 if test "$HAVE_GCONF" = yes; then
2601 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2602 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2603 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2604 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2608 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2609 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2610 if test "$HAVE_GOBJECT" = "yes"; then
2611 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2612 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2614 SAVE_CFLAGS="$CFLAGS"
2616 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2617 LIBS="$SETTINGS_LIBS $LIBS"
2618 CFLAGS="$SAVE_CFLAGS"
2621 AC_SUBST(SETTINGS_CFLAGS)
2622 AC_SUBST(SETTINGS_LIBS)
2625 dnl SELinux is available for GNU/Linux only.
2628 if test "${with_selinux}" = "yes"; then
2629 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2630 if test "$HAVE_LIBSELINUX" = yes; then
2631 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2632 LIBSELINUX_LIBS=-lselinux
2635 AC_SUBST(LIBSELINUX_LIBS)
2638 if test "${with_gnutls}" = "yes" ; then
2639 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2640 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2641 if test "${HAVE_GNUTLS}" = "yes"; then
2642 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2643 EMACS_CHECK_MODULES([LIBGNUTLS3], [gnutls >= 3.0.0],
2644 [AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])], [])
2647 # Windows loads GnuTLS dynamically
2648 if test "${opsys}" = "mingw32"; then
2653 AC_SUBST(LIBGNUTLS_LIBS)
2654 AC_SUBST(LIBGNUTLS_CFLAGS)
2659 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2660 dnl a particular library. This doesn't make much sense?
2661 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2662 with_file_notification=no
2665 dnl MS Windows native file monitor is available for mingw32 only.
2666 case $with_file_notification,$opsys in
2667 w32,* | yes,mingw32)
2668 AC_CHECK_HEADER(windows.h)
2669 if test "$ac_cv_header_windows_h" = yes ; then
2670 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2671 NOTIFY_OBJ=w32notify.o
2672 NOTIFY_SUMMARY="yes (w32)"
2676 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2677 dnl has been added in glib 2.24. It has been tested under
2678 dnl GNU/Linux only. We take precedence over inotify, but this makes
2679 dnl only sense when glib has been compiled with inotify support. How
2681 case $with_file_notification,$NOTIFY_OBJ in
2683 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2684 if test "$HAVE_GFILENOTIFY" = "yes"; then
2685 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2686 NOTIFY_OBJ=gfilenotify.o
2687 NOTIFY_SUMMARY="yes -lgio (gfile)"
2691 dnl inotify is only available on GNU/Linux.
2692 case $with_file_notification,$NOTIFY_OBJ in
2694 AC_CHECK_HEADER(sys/inotify.h)
2695 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2696 AC_CHECK_FUNC(inotify_init1)
2697 if test "$ac_cv_func_inotify_init1" = yes; then
2698 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2699 NOTIFY_OBJ=inotify.o
2700 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2705 case $with_file_notification,$NOTIFY_OBJ in
2706 yes,* | no,* | *,?*) ;;
2707 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2710 if test -n "$NOTIFY_OBJ"; then
2711 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2713 AC_SUBST(NOTIFY_OBJ)
2714 AC_SUBST(GFILENOTIFY_CFLAGS)
2715 AC_SUBST(GFILENOTIFY_LIBS)
2717 dnl Do not put whitespace before the #include statements below.
2718 dnl Older compilers (eg sunos4 cc) choke on it.
2721 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2722 if test "$with_xaw3d" != no; then
2723 AC_CACHE_VAL(emacs_cv_xaw3d,
2724 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2725 #include <X11/Intrinsic.h>
2726 #include <X11/Xaw3d/Simple.h>]],
2728 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2729 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2730 emacs_cv_xaw3d=no)])
2734 if test $emacs_cv_xaw3d = yes; then
2735 AC_MSG_CHECKING(for xaw3d)
2736 AC_MSG_RESULT([yes; using Lucid toolkit])
2740 AC_DEFINE(HAVE_XAW3D, 1,
2741 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2743 AC_MSG_CHECKING(for xaw3d)
2745 AC_MSG_CHECKING(for libXaw)
2746 AC_CACHE_VAL(emacs_cv_xaw,
2747 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2748 #include <X11/Intrinsic.h>
2749 #include <X11/Xaw/Simple.h>]],
2753 if test $emacs_cv_xaw = yes; then
2754 AC_MSG_RESULT([yes; using Lucid toolkit])
2757 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2758 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2760 AC_MSG_ERROR([No X toolkit could be found.
2761 If you are sure you want Emacs compiled without an X toolkit, pass
2763 to configure. Otherwise, install the development libraries for the toolkit
2764 that you want to use (e.g. Gtk+) and re-run configure.])
2769 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2773 if test "${USE_X_TOOLKIT}" != "none"; then
2774 AC_MSG_CHECKING(X11 toolkit version)
2775 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2776 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2777 [[#if XtSpecificationRelease < 6
2780 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2781 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2782 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2783 AC_MSG_RESULT(6 or newer)
2784 AC_DEFINE(HAVE_X11XTR6, 1,
2785 [Define to 1 if you have the X11R6 or newer version of Xt.])
2786 LIBXTR6="-lSM -lICE"
2788 ## Use libw.a along with X11R6 Xt.
2789 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2792 AC_MSG_RESULT(before 6)
2795 dnl If using toolkit, check whether libXmu.a exists.
2796 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2798 if test x$HAVE_X11XTR6 = xyes; then
2799 OTHERLIBS='-lXt -lSM -lICE'
2803 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2804 if test "X$LIBS" != "X$OLDLIBS"; then
2805 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2808 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2814 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2815 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2816 if test -d /usr/include/openmotif; then
2817 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2818 emacs_cv_openmotif=yes
2819 case "$canonical" in
2820 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2821 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2824 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2827 emacs_cv_openmotif=no
2829 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2830 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2831 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2834 Motif version prior to 2.1.
2836 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2837 if test $emacs_cv_motif_version_2_1 = yes; then
2838 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2839 if test x$emacs_cv_openmotif = xyes; then
2840 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2843 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2844 # We put this in CFLAGS temporarily to precede other -I options
2845 # that might be in CFLAGS temporarily.
2846 # We put this in CPPFLAGS where it precedes the other -I options.
2847 OLD_CPPFLAGS=$CPPFLAGS
2849 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2850 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2851 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2853 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2854 if test $emacs_cv_lesstif = yes; then
2855 # Make sure this -I option remains in CPPFLAGS after it is set
2856 # back to REAL_CPPFLAGS.
2857 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2858 # have those other -I options anyway. Ultimately, having this
2859 # directory ultimately in CPPFLAGS will be enough.
2860 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2861 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2864 CPPFLAGS=$OLD_CPPFLAGS
2867 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2868 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2871 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2872 dnl using Motif or Xaw3d is available, and unless
2873 dnl --with-toolkit-scroll-bars=no was specified.
2875 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2876 [Define to 1 if we should use toolkit scroll bars.])dnl
2877 USE_TOOLKIT_SCROLL_BARS=no
2878 if test "${with_toolkit_scroll_bars}" != "no"; then
2879 if test "${USE_X_TOOLKIT}" != "none"; then
2880 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2881 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2883 USE_TOOLKIT_SCROLL_BARS=yes
2884 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2885 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2886 USE_TOOLKIT_SCROLL_BARS=yes
2888 elif test "${HAVE_GTK}" = "yes"; then
2889 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2890 USE_TOOLKIT_SCROLL_BARS=yes
2891 elif test "${HAVE_NS}" = "yes"; then
2892 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2893 USE_TOOLKIT_SCROLL_BARS=yes
2894 elif test "${HAVE_W32}" = "yes"; then
2895 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2896 USE_TOOLKIT_SCROLL_BARS=yes
2900 dnl See if XIM is available.
2901 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2902 #include <X11/Xlib.h>
2903 #include <X11/Xresource.h>]],
2904 [[XIMProc callback;]])],
2906 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2909 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2911 if test "${with_xim}" != "no"; then
2912 AC_DEFINE(USE_XIM, 1,
2913 [Define to 1 if we should use XIM, if it is available.])
2917 if test "${HAVE_XIM}" != "no"; then
2919 if test "$GCC" = yes; then
2920 CFLAGS="$CFLAGS --pedantic-errors"
2922 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2923 #include <X11/Xlib.h>
2924 #include <X11/Xresource.h>]],
2930 XPointer *client_data;
2932 /* If we're not using GCC, it's probably not XFree86, and this is
2933 probably right, but we can't use something like --pedantic-errors. */
2934 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2935 char*, XIMProc, XPointer*);
2937 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2939 [emacs_cv_arg6_star=yes])
2940 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2941 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2942 either XPointer or XPointer*.])dnl
2943 if test "$emacs_cv_arg6_star" = yes; then
2944 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2946 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2951 ### Start of font-backend (under any platform) section.
2952 # (nothing here yet -- this is a placeholder)
2953 ### End of font-backend (under any platform) section.
2955 ### Start of font-backend (under X11) section.
2956 if test "${HAVE_X11}" = "yes"; then
2957 ## Use -lXft if available, unless `--with-xft=no'.
2959 if test "x${with_x}" = "xno"; then
2963 if test "$with_xft" != no; then
2964 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2965 with_xft=$HAVE_FONTCONFIG
2968 if test "x${with_xft}" != "xno"; then
2970 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2971 ## Because xftfont.c uses XRenderQueryExtension, we also
2972 ## need to link to -lXrender.
2974 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2975 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2976 OLD_CPPFLAGS="$CPPFLAGS"
2977 OLD_CFLAGS="$CFLAGS"
2979 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2980 CFLAGS="$CFLAGS $XFT_CFLAGS"
2981 XFT_LIBS="-lXrender $XFT_LIBS"
2982 LIBS="$XFT_LIBS $LIBS"
2983 AC_CHECK_HEADER(X11/Xft/Xft.h,
2984 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2985 [[#include <X11/X.h>]])
2987 if test "${HAVE_XFT}" = "yes"; then
2988 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2990 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2991 fi # "${HAVE_XFT}" = "yes"
2992 CPPFLAGS=$OLD_CPPFLAGS
2995 fi # "$HAVE_XFT" != no
2996 fi # "x${with_xft}" != "xno"
2998 ## We used to allow building with FreeType and without Xft.
2999 ## However, the ftx font backend driver is not in good shape.
3000 if test "$HAVE_XFT" != "yes"; then
3001 dnl For the "Does Emacs use" message at the end.
3005 dnl Strict linkers fail with
3006 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
3007 dnl if -lfreetype is not specified.
3008 dnl The following is needed to set FREETYPE_LIBS.
3009 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
3011 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
3015 if test "${HAVE_FREETYPE}" = "yes"; then
3016 AC_DEFINE(HAVE_FREETYPE, 1,
3017 [Define to 1 if using the freetype and fontconfig libraries.])
3018 if test "${with_libotf}" != "no"; then
3019 EMACS_CHECK_MODULES([LIBOTF], [libotf])
3020 if test "$HAVE_LIBOTF" = "yes"; then
3021 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
3022 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
3023 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
3024 HAVE_OTF_GET_VARIATION_GLYPHS=no)
3025 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
3026 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
3027 [Define to 1 if libotf has OTF_get_variation_glyphs.])
3031 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
3032 dnl Does the new font backend require it, or can it work without it?
3036 if test "${HAVE_LIBOTF}" = yes; then
3037 if test "${with_m17n_flt}" != "no"; then
3038 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
3039 if test "$HAVE_M17N_FLT" = "yes"; then
3040 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3051 ### End of font-backend (under X11) section.
3053 AC_SUBST(FREETYPE_CFLAGS)
3054 AC_SUBST(FREETYPE_LIBS)
3055 AC_SUBST(FONTCONFIG_CFLAGS)
3056 AC_SUBST(FONTCONFIG_LIBS)
3057 AC_SUBST(LIBOTF_CFLAGS)
3058 AC_SUBST(LIBOTF_LIBS)
3059 AC_SUBST(M17N_FLT_CFLAGS)
3060 AC_SUBST(M17N_FLT_LIBS)
3062 ### Use -lXpm if available, unless `--with-xpm=no'.
3063 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3064 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3065 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3066 ### LDFLAGS) accordingly.
3069 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3070 if test "${with_xpm}" != "no"; then
3071 SAVE_CPPFLAGS="$CPPFLAGS"
3072 SAVE_LDFLAGS="$LDFLAGS"
3073 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3074 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3075 AC_CHECK_HEADER(X11/xpm.h,
3076 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3077 if test "${HAVE_XPM}" = "yes"; then
3078 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3079 AC_EGREP_CPP(no_return_alloc_pixels,
3080 [#include "X11/xpm.h"
3081 #ifndef XpmReturnAllocPixels
3082 no_return_alloc_pixels
3084 ], HAVE_XPM=no, HAVE_XPM=yes)
3086 if test "${HAVE_XPM}" = "yes"; then
3087 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3091 CPPFLAGS="$SAVE_CPPFLAGS"
3092 LDFLAGS="$SAVE_LDFLAGS"
3097 if test "${HAVE_XPM}" = "yes"; then
3098 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3103 if test "${HAVE_X11}" = "yes"; then
3104 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3105 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3107 if test "${with_xpm}" != "no"; then
3108 AC_CHECK_HEADER(X11/xpm.h,
3109 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3110 if test "${HAVE_XPM}" = "yes"; then
3111 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3112 AC_EGREP_CPP(no_return_alloc_pixels,
3113 [#include "X11/xpm.h"
3114 #ifndef XpmReturnAllocPixels
3115 no_return_alloc_pixels
3117 ], HAVE_XPM=no, HAVE_XPM=yes)
3119 if test "${HAVE_XPM}" = "yes"; then
3127 if test "${HAVE_XPM}" = "yes"; then
3128 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3130 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3131 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3136 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3137 ### slightly different requirements wrt image libraries (it doesn't
3138 ### use -lXpm because it loads the xpm shared library dynamically at
3140 if test "${opsys}" = "mingw32"; then
3141 if test "${with_xpm}" != "no"; then
3142 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3146 if test "${HAVE_XPM}" = "yes"; then
3147 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3153 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3154 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3157 if test "${opsys}" = "mingw32"; then
3158 if test "${with_jpeg}" != "no"; then
3159 dnl Checking for jpeglib.h can lose because of a redefinition of
3161 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3163 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3164 if test "${HAVE_JPEG}" = "yes"; then
3165 AC_DEFINE(HAVE_JPEG)
3166 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3167 [#include <jpeglib.h>
3168 version=JPEG_LIB_VERSION
3170 [AC_DEFINE(HAVE_JPEG)],
3171 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3174 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3175 if test "${with_jpeg}" != "no"; then
3176 dnl Checking for jpeglib.h can lose because of a redefinition of
3178 AC_CHECK_HEADER(jerror.h,
3179 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3182 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3183 if test "${HAVE_JPEG}" = "yes"; then
3184 AC_DEFINE(HAVE_JPEG)
3185 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3186 [#include <jpeglib.h>
3187 version=JPEG_LIB_VERSION
3189 [AC_DEFINE(HAVE_JPEG)],
3190 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3193 if test "${HAVE_JPEG}" = "yes"; then
3201 if test "${with_zlib}" != "no"; then
3203 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3205 case $ac_cv_search_inflateEnd in
3206 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3209 if test "${HAVE_ZLIB}" = "yes"; then
3210 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3211 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3212 if test "${opsys}" = "mingw32"; then
3218 ### Use -lpng if available, unless `--with-png=no'.
3222 if test "${NS_IMPL_COCOA}" = yes; then
3224 elif test "${with_png}" != no; then
3225 # mingw32 loads the library dynamically.
3226 if test "$opsys" = mingw32; then
3227 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3228 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3229 AC_MSG_CHECKING([for png])
3230 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3231 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3232 # libpng-config does not work; configure by hand.
3233 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3234 # in /usr/include/libpng.
3235 if test -r /usr/include/libpng/png.h &&
3236 test ! -r /usr/include/png.h; then
3237 png_cflags=-I/usr/include/libpng
3245 CFLAGS="$CFLAGS $png_cflags"
3246 LIBS="$png_libs -lz -lm $LIBS"
3248 [AC_LANG_PROGRAM([[#include <png.h>]],
3249 [[return !png_get_channels (0, 0);]])],
3251 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3253 # $LIBPNG requires explicit -lz in some cases.
3254 # We don't know what those cases are, exactly, so play it safe and
3255 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3256 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3257 LIBPNG="$LIBPNG -lz"
3261 AC_MSG_RESULT([$HAVE_PNG])
3264 if test $HAVE_PNG = yes; then
3265 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3268 CFLAGS="$CFLAGS $PNG_CFLAGS"
3269 AC_CHECK_DECL([png_longjmp],
3271 [AC_DEFINE([PNG_DEPSTRUCT], [],
3272 [Define to empty to suppress deprecation warnings when building
3273 with --enable-gcc-warnings and with libpng versions before 1.5,
3274 which lack png_longjmp.])],
3280 AC_SUBST(PNG_CFLAGS)
3282 ### Use -ltiff if available, unless `--with-tiff=no'.
3283 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3286 if test "${opsys}" = "mingw32"; then
3287 if test "${with_tiff}" != "no"; then
3288 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3290 if test "${HAVE_TIFF}" = "yes"; then
3291 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3293 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3294 if test "${with_tiff}" != "no"; then
3295 AC_CHECK_HEADER(tiffio.h,
3297 # At least one tiff package requires the jpeg library.
3298 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3299 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3302 if test "${HAVE_TIFF}" = "yes"; then
3303 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3304 dnl FIXME -lz -lm, as per libpng?
3310 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3311 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3314 if test "${opsys}" = "mingw32"; then
3315 if test "${with_gif}" != "no"; then
3316 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3318 if test "${HAVE_GIF}" = "yes"; then
3319 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3321 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3322 || test "${HAVE_W32}" = "yes"; then
3323 AC_CHECK_HEADER(gif_lib.h,
3324 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3325 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3326 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3327 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3329 if test "$HAVE_GIF" = yes; then
3331 elif test "$HAVE_GIF" = maybe; then
3332 # If gif_lib.h but no libgif, try libungif.
3333 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3334 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3337 if test "${HAVE_GIF}" = "yes"; then
3338 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3343 dnl Check for required libraries.
3344 if test "${HAVE_X11}" = "yes"; then
3347 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3348 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3349 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3350 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3351 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3352 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3353 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3354 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3355 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3356 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3358 if test "X${MISSING}" != X; then
3359 AC_MSG_ERROR([The following required libraries were not found:
3361 Maybe some development libraries/packages are missing?
3362 If you don't want to link with them give
3364 as options to configure])
3368 ### Use -lgpm if available, unless `--with-gpm=no'.
3371 if test "${with_gpm}" != "no"; then
3372 AC_CHECK_HEADER(gpm.h,
3373 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3375 if test "${HAVE_GPM}" = "yes"; then
3376 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3382 dnl Check for malloc/malloc.h on darwin
3383 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3386 ### Use NeXTstep API to implement GUI.
3387 if test "${HAVE_NS}" = "yes"; then
3388 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3389 if test "${NS_IMPL_COCOA}" = "yes"; then
3390 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3392 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3393 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3394 if test $NS_GNUSTEP_CONFIG != yes; then
3395 # See also .m.o rule in src/Makefile.in. */
3396 # FIXME: are all these flags really needed? Document here why. */
3397 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3398 ## Extra CFLAGS applied to src/*.m files.
3399 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3405 ### Use session management (-lSM -lICE) if available
3408 if test "${HAVE_X11}" = "yes"; then
3409 AC_CHECK_HEADER(X11/SM/SMlib.h,
3410 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3412 if test "${HAVE_X_SM}" = "yes"; then
3413 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3419 ### Use XRandr (-lXrandr) if available
3421 if test "${HAVE_X11}" = "yes"; then
3422 XRANDR_REQUIRED=1.2.2
3423 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3424 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3425 if test $HAVE_XRANDR = no; then
3426 # Test old way in case pkg-config doesn't have it (older machines).
3427 # Include Xrender.h by hand to work around bug in older Xrandr.h
3428 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3429 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3430 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3431 [], [AC_INCLUDES_DEFAULT
3432 #include <X11/extensions/Xrender.h>])
3433 if test $HAVE_XRANDR = yes; then
3434 XRANDR_LIBS=-lXrandr
3437 if test $HAVE_XRANDR = yes; then
3438 SAVE_CFLAGS="$CFLAGS"
3440 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3441 LIBS="$XRANDR_LIBS $LIBS"
3442 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3443 CFLAGS="$SAVE_CFLAGS"
3446 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3449 AC_SUBST(XRANDR_CFLAGS)
3450 AC_SUBST(XRANDR_LIBS)
3452 ### Use Xinerama (-lXinerama) if available
3454 if test "${HAVE_X11}" = "yes"; then
3455 XINERAMA_REQUIRED=1.0.2
3456 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3457 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3458 if test $HAVE_XINERAMA = no; then
3459 # Test old way in case pkg-config doesn't have it (older machines).
3460 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3461 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3462 if test $HAVE_XINERAMA = yes; then
3463 XINERAMA_LIBS=-lXinerama
3466 if test $HAVE_XINERAMA = yes; then
3467 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3470 AC_SUBST(XINERAMA_CFLAGS)
3471 AC_SUBST(XINERAMA_LIBS)
3473 ### Use Xfixes (-lXfixes) if available
3475 if test "${HAVE_X11}" = "yes"; then
3476 XFIXES_REQUIRED=4.0.0
3477 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3478 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3479 if test $HAVE_XFIXES = no; then
3480 # Test old way in case pkg-config doesn't have it (older machines).
3481 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3482 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3483 if test $HAVE_XFIXES = yes; then
3484 XFIXES_LIBS=-lXfixes
3487 if test $HAVE_XFIXES = yes; then
3488 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3491 AC_SUBST(XFIXES_CFLAGS)
3492 AC_SUBST(XFIXES_LIBS)
3494 ### Use libxml (-lxml2) if available
3495 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3497 if test "${with_xml2}" != "no"; then
3498 ### I'm not sure what the version number should be, so I just guessed.
3499 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3500 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3501 if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
3502 SAVE_CPPFLAGS="$CPPFLAGS"
3503 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3504 AC_CHECK_HEADER(libxml/HTMLparser.h,
3505 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3506 [#include <libxml/HTMLparser.h>])])
3507 CPPFLAGS="$SAVE_CPPFLAGS"
3508 if test "${HAVE_LIBXML2}" = "yes"; then
3509 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3510 LIBXML2_LIBS="-lxml2"
3513 if test "${HAVE_LIBXML2}" = "yes"; then
3514 if test "${opsys}" != "mingw32"; then
3515 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,
3520 if test "${HAVE_LIBXML2}" = "yes"; then
3521 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3528 AC_SUBST(LIBXML2_LIBS)
3529 AC_SUBST(LIBXML2_CFLAGS)
3531 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3532 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3533 if test "${opsys}" = "mingw32"; then
3534 emacs_cv_netdb_declares_h_errno=yes
3536 AC_CACHE_CHECK(whether netdb declares h_errno,
3537 emacs_cv_netdb_declares_h_errno,
3538 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3539 [[return h_errno;]])],
3540 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3541 if test $emacs_cv_netdb_declares_h_errno = yes; then
3542 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3545 # Check for mail-locking functions in a "mail" library. Probably this should
3546 # have the same check as for liblockfile below.
3547 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3548 if test $have_mail = yes; then
3550 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3553 LIBS="$LIBS_MAIL $LIBS"
3554 AC_CHECK_FUNCS(touchlock)
3559 dnl Debian, at least:
3560 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3561 if test $have_lockfile = yes; then
3562 LIBS_MAIL=-llockfile
3563 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3565 # If we have the shared liblockfile, assume we must use it for mail
3566 # locking (e.g. Debian). If we couldn't link against liblockfile
3567 # (no liblockfile.a installed), ensure that we don't need to.
3568 dnl This works for files generally, not just executables.
3569 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3570 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3571 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3572 if test $ac_cv_prog_liblockfile = yes; then
3573 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3574 This probably means that movemail could lose mail.
3575 There may be a `development' package to install containing liblockfile.])
3578 AC_CHECK_HEADERS_ONCE(maillock.h)
3581 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3582 ## interlock access to the mail spool. The alternative is a lock file named
3583 ## /usr/spool/mail/$USER.lock.
3586 aix4-2) mail_lock="lockf" ;;
3588 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3590 ## On GNU/Linux systems, both methods are used by various mail programs.
3591 ## I assume most people are using newer mailers that have heard of flock.
3592 ## Change this if you need to.
3593 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3594 ## configure gets the right answers, and that means *NOT* using flock.
3595 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3596 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3597 ## Debian maintainer hasn't provided a clean fix for Emacs.
3598 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3599 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3600 ## correct logic. -- fx
3601 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3602 ## liblockfile is a Free Software replacement for libmail, used on
3603 ## Debian systems and elsewhere. -rfr.
3606 if test $have_mail = yes || test $have_lockfile = yes; then
3607 test $ac_cv_header_maillock_h = yes && mail_lock=no
3612 mail_lock="none-needed" ;;
3616 case "$mail_lock" in
3617 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3619 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3623 *) BLESSMAIL_TARGET="need-blessmail" ;;
3625 AC_SUBST(BLESSMAIL_TARGET)
3628 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3629 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3630 getrusage get_current_dir_name \
3631 lrand48 random rint \
3632 select getpagesize setlocale newlocale \
3633 getrlimit setrlimit shutdown getaddrinfo \
3634 pthread_sigmask strsignal setitimer \
3635 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3637 getpwent endpwent getgrent endgrent \
3638 cfmakeraw cfsetspeed copysign __executable_start log2)
3641 dnl No need to check for aligned_alloc and posix_memalign if using
3642 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3643 dnl Don't use these functions on Darwin as they are incompatible with
3645 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3646 && test "$opsys" != darwin; then
3647 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3650 dnl Cannot use AC_CHECK_FUNCS
3651 AC_CACHE_CHECK([for __builtin_unwind_init],
3652 emacs_cv_func___builtin_unwind_init,
3653 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3654 emacs_cv_func___builtin_unwind_init=yes,
3655 emacs_cv_func___builtin_unwind_init=no)])
3656 if test $emacs_cv_func___builtin_unwind_init = yes; then
3657 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3658 [Define to 1 if you have the `__builtin_unwind_init' function.])
3661 AC_CHECK_HEADERS_ONCE(sys/un.h)
3666 AC_CHECK_FUNCS(grantpt)
3668 # PTY-related GNU extensions.
3669 AC_CHECK_FUNCS(getpt posix_openpt)
3671 # Check this now, so that we will NOT find the above functions in ncurses.
3672 # That is because we have not set up to link ncurses in lib-src.
3673 # It's better to believe a function is not available
3674 # than to expect to find it in ncurses.
3675 # Also we need tputs and friends to be able to build at all.
3676 AC_MSG_CHECKING([for library containing tputs])
3677 # Run a test program that contains a call to tputs, a call that is
3678 # never executed. This tests whether a pre-'main' dynamic linker
3679 # works with the library. It's too much trouble to actually call
3680 # tputs in the test program, due to portability hassles. When
3681 # cross-compiling, assume the test program will run if it links.
3682 AC_DEFUN([tputs_link_source], [
3684 [[extern void tputs (const char *, int, int (*)(int));
3685 int main (int argc, char **argv)
3688 tputs (argv[0], 0, 0);
3692 if test "${opsys}" = "mingw32"; then
3695 # Maybe curses should be tried earlier?
3696 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3697 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3699 if test -z "$tputs_library"; then
3703 LIBS_TERMCAP=-l$tputs_library
3705 LIBS="$LIBS_TERMCAP $LIBS"
3707 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3708 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3710 if test "X$msg" != Xno; then
3715 AC_MSG_RESULT([$msg])
3716 if test "X$msg" = Xno; then
3717 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3718 The following libraries were tried (in order):
3719 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3720 Please try installing whichever of these libraries is most appropriate
3721 for your system, together with its header files.
3722 For example, a libncurses-dev(el) or similar package.])
3725 ## Use termcap instead of terminfo?
3726 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3728 ## FIXME? In the cases below where we unconditionally set
3729 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3730 ## if that was found above to have tputs.
3731 ## Should we use the gnu* logic everywhere?
3733 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3734 ## The ncurses library has been moved out of the System framework in
3735 ## Mac OS X 10.2. So if configure detects it, set the command-line
3736 ## option to use it.
3737 darwin) LIBS_TERMCAP="-lncurses" ;;
3739 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3742 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3743 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3744 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3745 [[#if __FreeBSD_version < 400000
3748 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3750 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3752 if test $emacs_cv_freebsd_terminfo = yes; then
3753 LIBS_TERMCAP="-lncurses"
3756 LIBS_TERMCAP="-ltermcap"
3766 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3768 LIBS_TERMCAP="-ltermcap"
3772 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3774 ## hpux: Make sure we get select from libc rather than from libcurses
3775 ## because libcurses on HPUX 10.10 has a broken version of select.
3776 ## We used to use -lc -lcurses, but this may be cleaner.
3777 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3778 # set that way, now it uses the default). Isn't this a contradiction?
3779 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3783 TERMCAP_OBJ=tparam.o
3784 if test $TERMINFO = yes; then
3785 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3786 TERMCAP_OBJ=terminfo.o
3788 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3789 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3791 AC_SUBST(LIBS_TERMCAP)
3792 AC_SUBST(TERMCAP_OBJ)
3794 # GNU/Linux-specific timer functions.
3795 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3797 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3799 [[timerfd_create (CLOCK_REALTIME,
3800 TFD_CLOEXEC | TFD_NONBLOCK);
3801 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3802 [emacs_cv_have_timerfd=yes],
3803 [emacs_cv_have_timerfd=no])])
3804 if test "$emacs_cv_have_timerfd" = yes; then
3805 AC_DEFINE([HAVE_TIMERFD], 1,
3806 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3809 # Alternate stack for signal handlers.
3810 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3811 [emacs_cv_alternate_stack],
3813 [AC_LANG_PROGRAM([[#include <signal.h>
3816 struct sigaction sa;
3817 ss.ss_sp = malloc (SIGSTKSZ);
3818 ss.ss_size = SIGSTKSZ;
3819 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3820 sigaltstack (&ss, 0);
3821 sigaction (SIGSEGV, &sa, 0);]])],
3822 [emacs_cv_alternate_stack=yes],
3823 [emacs_cv_alternate_stack=no])])
3825 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3826 # On Darwin, res_init appears not to be useful: see bug#562 and
3827 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3830 if test $opsys != darwin; then
3832 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3833 #include <arpa/nameser.h>
3834 #include <resolv.h>]],
3835 [[return res_init();]])],
3836 have_res_init=yes, have_res_init=no)
3837 if test "$have_res_init" = no; then
3839 LIBS="$LIBS -lresolv"
3840 AC_MSG_CHECKING(for res_init with -lresolv)
3841 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3842 #include <arpa/nameser.h>
3843 #include <resolv.h>]],
3844 [[return res_init();]])],
3845 have_res_init=yes, have_res_init=no)
3846 AC_MSG_RESULT($have_res_init)
3847 if test "$have_res_init" = yes ; then
3853 if test "$have_res_init" = yes; then
3854 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3858 # Do we need the Hesiod library to provide the support routines?
3859 dnl FIXME? Should we be skipping this on Darwin too?
3861 if test "$with_hesiod" != no ; then
3862 # Don't set $LIBS here -- see comments above. FIXME which comments?
3863 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3864 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3865 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3866 if test "$resolv" = yes ; then
3871 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3872 hesiod=yes, :, $RESOLVLIB)])
3874 if test x"$hesiod" = xyes; then
3880 # Do we need libresolv (due to res_init or Hesiod)?
3881 if test "$resolv" = yes && test $opsys != darwin; then
3888 # These tell us which Kerberos-related libraries to use.
3895 if test "${with_kerberos}" != no; then
3897 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3898 if test $have_com_err = yes; then
3899 COM_ERRLIB=-lcom_err
3900 LIBS="$COM_ERRLIB $LIBS"
3902 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3903 if test $have_crypto = yes; then
3905 LIBS="$CRYPTOLIB $LIBS"
3907 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3908 if test $have_k5crypto = yes; then
3909 CRYPTOLIB=-lk5crypto
3910 LIBS="$CRYPTOLIB $LIBS"
3912 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3913 if test $have_krb5=yes; then
3915 LIBS="$KRB5LIB $LIBS"
3917 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3918 if test "${with_kerberos5}" = no; then
3919 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3920 if test $have_des425 = yes; then
3922 LIBS="$DESLIB $LIBS"
3924 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3925 if test $have_des = yes; then
3927 LIBS="$DESLIB $LIBS"
3930 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3931 if test $have_krb4 = yes; then
3933 LIBS="$KRB4LIB $LIBS"
3935 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3936 if test $have_krb = yes; then
3938 LIBS="$KRB4LIB $LIBS"
3943 if test "${with_kerberos5}" != no; then
3944 AC_CHECK_HEADERS(krb5.h,
3945 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3946 [#include <krb5.h>])])
3948 AC_CHECK_HEADERS(krb.h,,
3949 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3950 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3952 AC_CHECK_HEADERS(com_err.h)
3956 AC_SUBST(COM_ERRLIB)
3962 AC_CHECK_HEADERS(valgrind/valgrind.h)
3964 AC_CHECK_FUNCS_ONCE(tzalloc tzset)
3967 AC_CHECK_FUNC(socket, , ok_so_far=no)
3968 if test $ok_so_far = yes; then
3969 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3971 if test $ok_so_far = yes; then
3972 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3974 if test $ok_so_far = yes; then
3975 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3976 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3977 [Define to 1 if you have inet sockets.])
3982 AC_CHECK_FUNCS(snprintf)
3984 dnl Check for glib. This differs from other library checks in that
3985 dnl Emacs need not link to glib unless some other library is already
3986 dnl linking to glib. Although glib provides no facilities that Emacs
3987 dnl needs for its own purposes, when glib is present Emacs needs to
3988 dnl use primitives like g_main_context_query to avoid clashing with
3989 dnl glib at a low level.
3991 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3995 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3996 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3997 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3998 LIBS="$LIBS $GFILENOTIFY_LIBS"
3999 AC_MSG_CHECKING([whether GLib is linked in])
4000 AC_LINK_IFELSE([AC_LANG_PROGRAM(
4003 [[g_print ("Hello world");]])],
4006 AC_MSG_RESULT([$links_glib])
4007 if test "${links_glib}" = "yes"; then
4008 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
4009 if test "$HAVE_NS" = no;then
4017 dnl Adapted from Haible's version.
4018 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4019 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4020 [[char* cs = nl_langinfo(CODESET);]])],
4021 emacs_cv_langinfo_codeset=yes,
4022 emacs_cv_langinfo_codeset=no)
4024 if test $emacs_cv_langinfo_codeset = yes; then
4025 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4026 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4031 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4032 dnl how the tty code is related to POSIX and/or other versions of termios.
4033 dnl The following looks like a useful start.
4035 dnl AC_SYS_POSIX_TERMIOS
4036 dnl if test $ac_cv_sys_posix_termios = yes; then
4037 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4038 dnl and macros for terminal control.])
4039 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4042 dnl Turned on June 1996 supposing nobody will mind it.
4043 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4044 if test "${opsys}" != "mingw32"; then
4045 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4046 in the full name stands for the login id.])
4049 dnl Everybody supports this, except MS.
4050 dnl Seems like the kind of thing we should be testing for, though.
4051 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4052 if test "${opsys}" != "mingw32"; then
4053 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4056 dnl Everybody supports this, except MS-DOS.
4057 dnl Seems like the kind of thing we should be testing for, though.
4058 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4059 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4060 4.2-compatible sockets.])
4062 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4064 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4065 a null file, or a data sink.])
4066 if test "${opsys}" = "mingw32"; then
4067 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4069 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4072 if test "${opsys}" = "mingw32"; then
4077 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4078 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4079 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4080 dnl decides that a command-line argument to be passed to a MinGW program
4081 dnl is a PATH-style list of directories. But that heuristics plays it
4082 dnl safe, and only does the replacement when it is _absolutely_ sure it
4083 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4084 dnl which breaks in-tree builds. So we do this manually instead.
4085 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4086 dnl be computed as ':' in MSYS Bash.
4089 dnl Everybody supports this, except MS-DOS.
4090 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4092 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4095 AC_DEFINE(DIRECTORY_SEP, ['/'],
4096 [Character that separates directories in a file name.])
4098 if test "${opsys}" = "mingw32"; then
4099 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4100 [Returns true if character is a device separator.])
4102 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4103 [Returns true if character is a directory separator.])
4105 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4106 [Returns true if character is any form of separator.])
4108 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4109 [Returns true if character is a device separator.])
4111 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4112 [Returns true if character is a directory separator.])
4114 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4115 [Returns true if character is any form of separator.])
4118 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4122 dnl Unfortunately without libXmu we cannot support EditRes.
4123 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4124 AC_DEFINE(NO_EDITRES, 1)
4129 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4130 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4131 AC_DEFINE(NO_EDITRES, 1)
4137 irix6-5 | sol2* | unixware )
4138 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4139 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4140 dnl need the constant to dimension an array. So wire in the appropriate
4142 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4146 emacs_broken_SIGIO=no
4149 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4150 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4151 hpux* | irix6-5 | openbsd | sol2* | unixware )
4152 emacs_broken_SIGIO=yes
4156 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4157 dnl the way this system works, libc functions that return malloced
4158 dnl memory use the libc malloc implementation. Calling xfree or
4159 dnl xrealloc on the results of such functions results in a crash.
4161 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4162 dnl but that does not currently work on this system.
4164 dnl It is possible to completely override the malloc implementation on
4165 dnl AIX, but that involves putting the malloc functions in a shared
4166 dnl library and setting the MALLOCTYPE environment variable to point to
4167 dnl that shared library.
4169 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4170 dnl to avoid a crash just use the Emacs implementation for that function.
4172 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4173 dnl of this file, so that we do not check for get_current_dir_name
4174 dnl on AIX. But that might be fragile if something else ends
4175 dnl up testing for get_current_dir_name as a dependency.
4176 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4177 get_current_dir_name should not be used.])
4181 dnl Circumvent a bug in FreeBSD. In the following sequence of
4182 dnl writes/reads on a PTY, read(2) returns bogus data:
4184 dnl write(2) 1022 bytes
4185 dnl write(2) 954 bytes, get EAGAIN
4186 dnl read(2) 1024 bytes in process_read_output
4187 dnl read(2) 11 bytes in process_read_output
4189 dnl That is, read(2) returns more bytes than have ever been written
4190 dnl successfully. The 1033 bytes read are the 1022 bytes written
4191 dnl successfully after processing (for example with CRs added if the
4192 dnl terminal is set up that way which it is here). The same bytes will
4193 dnl be seen again in a later read(2), without the CRs.
4194 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4195 work around an issue when reading from a PTY.])
4201 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4202 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4207 darwin | dragonfly | freebsd | netbsd | openbsd )
4208 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4209 close a pty to make it a controlling terminal (it is already a
4210 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4214 dnl FIXME Surely we can test for this rather than hard-code it.
4216 netbsd | openbsd) sound_device="/dev/audio" ;;
4217 *) sound_device="/dev/dsp" ;;
4221 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4222 [Name of the default sound device.])
4225 dnl Emacs can read input using SIGIO and buffering characters itself,
4226 dnl or using CBREAK mode and making C-g cause SIGINT.
4227 dnl The choice is controlled by the variable interrupt_input.
4229 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4231 dnl Emacs uses the presence of the USABLE_SIGIO macro
4232 dnl to indicate whether or not signal-driven I/O is possible. It uses
4233 dnl INTERRUPT_INPUT to decide whether to use it by default.
4235 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4236 dnl CBREAK mode has two disadvantages
4237 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4238 dnl I hear that in system V this problem does not exist.
4239 dnl 2) Control-G causes output to be discarded.
4240 dnl I do not know whether this can be fixed in system V.
4242 dnl Another method of doing input is planned but not implemented.
4243 dnl It would have Emacs fork off a separate process
4244 dnl to read the input and send it to the true Emacs process
4247 darwin | gnu-linux | gnu-kfreebsd )
4248 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4253 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4254 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4255 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4256 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4257 dnl taking float or double parameters.
4259 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4260 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4261 file defines `NeedWidePrototypes' as `NO'.])
4266 dnl Used in process.c, this must be a loop, even if it only runs once.
4267 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4268 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4269 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4270 dnl trying suffixes 0-16.
4271 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4272 first PTY, if PTYs are supported.])
4273 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4274 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4275 end of a PTY, if non-standard.])
4276 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4277 end of a PTY, if non-standard.])
4281 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4282 dnl You allocate a pty by opening /dev/ptc to get the master side.
4283 dnl To get the name of the slave side, you just ttyname() the master side.
4284 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4285 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4289 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4290 dnl multi-line AC_DEFINEs are hard. :(
4291 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)])
4292 AC_DEFINE(PTY_NAME_SPRINTF, [])
4293 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4296 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4298 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4299 dnl Not used, because PTY_ITERATION is defined.
4300 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4301 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4302 dnl But we don't have to block SIGCHLD because it is blocked in the
4303 dnl implementation of grantpt.
4304 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4305 AC_DEFINE(PTY_NAME_SPRINTF, [])
4306 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4310 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4313 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4315 if test "x$ac_cv_func_grantpt" = xyes; then
4316 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4317 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4318 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4319 dnl to prevent sigchld_handler from intercepting the child's death.
4320 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); }])
4321 dnl if HAVE_POSIX_OPENPT
4322 if test "x$ac_cv_func_posix_openpt" = xyes; then
4323 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4324 AC_DEFINE(PTY_NAME_SPRINTF, [])
4326 elif test "x$ac_cv_func_getpt" = xyes; then
4327 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4328 AC_DEFINE(PTY_NAME_SPRINTF, [])
4330 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4333 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4338 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4339 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4340 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4344 dnl It looks like this cannot be right, because it is not a loop.
4345 dnl However, process.c actually does this:
4351 dnl which presumably makes it OK, since irix == sgi (?).
4352 dnl FIXME it seems like this special treatment is unnecessary?
4353 dnl Why can't irix use a single-trip loop like eg cygwin?
4354 AC_DEFINE(PTY_ITERATION, [])
4355 dnl Not used, because PTY_ITERATION is defined.
4356 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4357 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); }])
4358 dnl No need to get the pty name at all.
4359 AC_DEFINE(PTY_NAME_SPRINTF, [])
4360 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4361 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4365 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4366 dnl from intercepting that death. If any child but grantpt's should die
4367 dnl within, it should be caught after sigrelse(2).
4368 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); }])
4372 dnl Comments are as per sol2*.
4373 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); }])
4380 dnl This change means that we don't loop through allocate_pty too
4381 dnl many times in the (rare) event of a failure.
4382 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4383 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4384 dnl Push various streams modules onto a PTY channel. Used in process.c.
4385 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4390 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4391 "typing" a signal character on the pty.])
4394 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4395 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4396 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4397 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4400 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4401 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4402 gnu-linux | gnu-kfreebsd )
4404 AC_MSG_CHECKING([for signals via characters])
4405 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4406 #include <linux/version.h>
4407 #if LINUX_VERSION_CODE < 0x20400
4408 # error "Linux version too old"
4410 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4412 AC_MSG_RESULT([$emacs_signals_via_chars])
4413 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4418 AH_TEMPLATE(TAB3, [Undocumented.])
4421 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4423 gnu | dragonfly | freebsd | netbsd | openbsd )
4424 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4425 AC_DEFINE(TAB3, OXTABS)
4428 gnu-linux | gnu-kfreebsd )
4429 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4433 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4434 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4435 [Mark a secondary stack, like the register stack on the ia64.]), [])
4439 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4440 run_time_remap; for HPUX.])
4445 dnl This won't be used automatically yet. We also need to know, at least,
4446 dnl that the stack is continuous.
4447 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4448 registers relevant for conservative garbage collection in the jmp_buf.])
4452 dnl Not all the architectures are tested, but there are Debian packages
4453 dnl for SCM and/or Guile on them, so the technique must work. See also
4454 dnl comments in alloc.c concerning setjmp and gcc.
4455 dnl Fixme: it's probably safe to just use the GCC conditional below.
4456 gnu-linux | gnu-kfreebsd )
4457 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4458 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4459 || defined __alpha__ || defined __mips__ || defined __s390__ \
4460 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4461 || defined __ia64__ || defined __sh__
4464 # error "setjmp not known to work on this arch"
4466 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4471 if test x$GCC = xyes; then
4472 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4473 AC_DEFINE(GC_SETJMP_WORKS, 1)
4476 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4477 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4478 AC_DEFINE(GC_SETJMP_WORKS, 1)
4483 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4484 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4487 [[#include <setjmp.h>
4489 # define _longjmp longjmp
4494 _longjmp (j, 1);]])],
4495 [emacs_cv_func__setjmp=yes],
4496 [emacs_cv_func__setjmp=no])])
4497 if test $emacs_cv_func__setjmp = yes; then
4498 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4501 # We need to preserve signal mask to handle C stack overflows.
4502 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4505 [[#include <setjmp.h>
4508 if (! sigsetjmp (j, 1))
4509 siglongjmp (j, 1);]])],
4510 [emacs_cv_func_sigsetjmp=yes],
4511 [emacs_cv_func_sigsetjmp=no])])
4512 if test $emacs_cv_func_sigsetjmp = yes; then
4513 AC_DEFINE([HAVE_SIGSETJMP], 1,
4514 [Define to 1 if sigsetjmp and siglongjmp work.])
4517 # We need all of these features to handle C stack overflows.
4518 if test "$ac_cv_header_sys_resource_h" = "yes" &&
4519 test "$ac_cv_func_getrlimit" = "yes" &&
4520 test "$emacs_cv_func_sigsetjmp" = "yes" &&
4521 test "$emacs_cv_alternate_stack" = yes; then
4522 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4523 [Define to 1 if C stack overflow can be handled in some cases.])
4528 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4529 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4530 dnl and this is all we need.
4531 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4538 dnl Used in xfaces.c.
4539 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4540 some systems, where it requires time.h.])
4545 dnl Define symbols to identify the version of Unix this is.
4546 dnl Define all the symbols that apply correctly.
4547 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4548 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4549 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4550 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4555 dnl This symbol should be defined on AIX Version 3 ???????
4556 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4558 # error "_AIX not defined"
4560 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4564 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4568 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4569 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4570 dnl distinguish OS X from pure Darwin.
4571 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4574 gnu-linux | gnu-kfreebsd )
4576 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4581 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4586 AC_DEFINE(USG5_4, [])
4587 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4591 AC_DEFINE(DOS_NT, [])
4592 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4593 if test "x$ac_enable_checking" != "x" ; then
4594 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4600 AC_DEFINE(USG5_4, [])
4601 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4606 AC_DEFINE(USG5_4, [])
4610 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4613 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4614 emacs_cv_usable_FIONREAD=no
4618 emacs_cv_usable_FIONREAD=yes
4623 [AC_LANG_PROGRAM([[#include <sys/types.h>
4624 #include <sys/ioctl.h>
4626 # include <sys/filio.h>
4629 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4630 [emacs_cv_usable_FIONREAD=yes],
4631 [emacs_cv_usable_FIONREAD=no])
4634 if test $emacs_cv_usable_FIONREAD = yes; then
4635 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4637 if test $emacs_broken_SIGIO = no; then
4638 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4640 [AC_LANG_PROGRAM([[#include <fcntl.h>
4643 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4644 [emacs_cv_usable_SIGIO=yes],
4645 [emacs_cv_usable_SIGIO=no])],
4646 [emacs_cv_usable_SIGIO=yes],
4647 [emacs_cv_usable_SIGIO=no])
4648 if test $emacs_cv_usable_SIGIO = yes; then
4649 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4656 dnl It works to open the pty's tty in the parent (Emacs), then
4657 dnl close and reopen it in the child.
4658 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4659 works to open a pty's tty in the parent process, then close and
4660 reopen it in the child.])
4664 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4665 use VSUSP instead of VSWTCH.])
4669 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4674 # Set up the CFLAGS for real compilation, so we can substitute it.
4675 CFLAGS="$REAL_CFLAGS"
4676 CPPFLAGS="$REAL_CPPFLAGS"
4679 ## Hack to detect a buggy GCC version.
4680 if test "x$GCC" = xyes \
4681 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4682 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4683 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4684 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4687 version=$PACKAGE_VERSION
4689 copyright="Copyright (C) 2015 Free Software Foundation, Inc."
4690 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4691 [Short copyright string for this version of Emacs.])
4694 ### Specify what sort of things we'll be editing into Makefile and config.h.
4695 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4697 AC_SUBST(configuration)
4702 AC_SUBST(exec_prefix)
4705 AC_SUBST(sharedstatedir)
4706 AC_SUBST(libexecdir)
4710 AC_SUBST(standardlisppath)
4711 AC_SUBST(locallisppath)
4713 AC_SUBST(x_default_search_path)
4715 AC_SUBST(archlibdir)
4721 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4722 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4723 ## end of LIBX_BASE, but nothing ever set it.
4724 AC_SUBST(LD_SWITCH_X_SITE)
4725 AC_SUBST(C_SWITCH_X_SITE)
4726 AC_SUBST(GNUSTEP_CFLAGS)
4728 ## Used in lwlib/Makefile.in.
4729 AC_SUBST(X_TOOLKIT_TYPE)
4731 AC_SUBST(ns_appbindir)
4732 AC_SUBST(ns_appresdir)
4734 AC_SUBST(GNU_OBJC_CFLAGS)
4735 AC_SUBST(OTHER_FILES)
4737 if test -n "${term_header}"; then
4738 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4739 [Define to the header for the built-in window system.])
4742 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4743 [Define to the canonical Emacs configuration name.])
4744 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4745 [Define to the options passed to configure.])
4746 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4747 define this to include extra configuration information.])
4751 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4758 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4759 AC_DEFINE(HAVE_X_WINDOWS, 1,
4760 [Define to 1 if you want to use the X window system.])
4762 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4764 if test "$HAVE_XFT" = "yes"; then
4765 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4766 elif test "$HAVE_FREETYPE" = "yes"; then
4767 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4777 if test "${USE_X_TOOLKIT}" != "none" ; then
4779 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4780 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4781 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4782 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4783 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4787 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4788 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4792 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4793 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4794 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4798 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4799 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4802 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4805 AC_SUBST(WIDGET_OBJ)
4808 case "$USE_X_TOOLKIT" in
4809 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4810 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4811 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4813 AC_SUBST(TOOLKIT_LIBW)
4815 if test "${opsys}" != "mingw32"; then
4816 if test "$USE_X_TOOLKIT" = "none"; then
4817 LIBXT_OTHER="\$(LIBXSM)"
4819 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4822 AC_SUBST(LIBXT_OTHER)
4824 if test "${HAVE_X11}" = "yes" ; then
4825 AC_DEFINE(HAVE_X11, 1,
4826 [Define to 1 if you want to use version 11 of X windows.])
4827 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4831 AC_SUBST(LIBX_OTHER)
4833 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4835 elif test "$USE_X_TOOLKIT" = none; then
4836 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4838 LIBXMENU='$(lwlibdir)/liblw.a'
4842 AC_CACHE_CHECK([for struct alignment],
4843 [emacs_cv_struct_alignment],
4845 [AC_LANG_PROGRAM([[#include <stddef.h>
4846 struct __attribute__ ((aligned (8))) s { char c; };
4847 struct t { char c; struct s s; };
4848 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
4850 [emacs_cv_struct_alignment=yes],
4851 [emacs_cv_struct_alignment=no])])
4852 if test "$emacs_cv_struct_alignment" = yes; then
4853 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
4854 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
4855 structure to an N-byte boundary.])
4858 if test "${GNU_MALLOC}" = "yes" ; then
4859 AC_DEFINE(GNU_MALLOC, 1,
4860 [Define to 1 if you want to use the GNU memory allocator.])
4864 if test "${REL_ALLOC}" = "yes" ; then
4865 AC_DEFINE(REL_ALLOC, 1,
4866 [Define REL_ALLOC if you want to use the relocating allocator for
4869 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4871 AC_SUBST(RALLOC_OBJ)
4873 if test "$opsys" = "cygwin"; then
4874 CYGWIN_OBJ="sheap.o cygw32.o"
4875 ## Cygwin differs because of its unexec().
4877 POST_ALLOC_OBJ=lastfile.o
4878 elif test "$opsys" = "mingw32"; then
4881 POST_ALLOC_OBJ=lastfile.o
4884 PRE_ALLOC_OBJ=lastfile.o
4887 AC_SUBST(CYGWIN_OBJ)
4888 AC_SUBST(PRE_ALLOC_OBJ)
4889 AC_SUBST(POST_ALLOC_OBJ)
4891 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4892 dnl verbatim defined above. The tricky name is apropos, as this hack
4893 dnl makes Fortify go sour!
4894 AH_VERBATIM([FORTIFY_SOUR],
4895 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4896 The workaround disables some useful run-time checking, so it
4897 should be conditional to the platforms with the performance bug.
4898 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4899 #if defined __APPLE__ && defined __GNUC__
4900 # ifndef _DONT_USE_CTYPE_INLINE_
4901 # define _DONT_USE_CTYPE_INLINE_
4903 # ifndef _FORTIFY_SOURCE
4904 # define _FORTIFY_SOURCE 0
4909 # If user asks to omit features, disable optional features that gnulib
4910 # might otherwise enable.
4911 if test "$with_features" = no && test "$enable_acl" != yes; then
4915 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4916 # it temporarily reverts them to their pre-pkg-config values,
4917 # because gnulib needs to work with both src (which uses the
4918 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4919 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4920 # and it therefore needs to run in an environment where LIBS does not
4921 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4922 # for some package unrelated to lib-src.
4925 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4926 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4927 gl_ASSERT_NO_GNULIB_POSIXCHECK
4928 gl_ASSERT_NO_GNULIB_TESTS
4933 if test "${opsys}" = "mingw32"; then
4934 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4935 # Remove unneeded switches from the value of CC that goes to Makefiles
4936 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4940 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4942 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
4945 ## The -headerpad option tells ld (see man page) to leave room at the
4946 ## end of the header for adding load commands. Needed for dumping.
4947 ## 0x1000 is enough for roughly 52 load commands on the x86_64
4948 ## architecture (where they are 78 bytes each). The actual number of
4949 ## load commands added is not consistent but normally ranges from
4950 ## about 14 to about 34. Setting it high gets us plenty of slop and
4951 ## only costs about 1.5K of wasted binary space.
4952 headerpad_extra=1000
4953 if test "$HAVE_NS" = "yes"; then
4954 libs_nsgui="-framework AppKit"
4955 if test "$NS_IMPL_COCOA" = "yes"; then
4956 libs_nsgui="$libs_nsgui -framework IOKit"
4961 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4963 ## This is here because src/Makefile.in did some extra fiddling around
4964 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4965 ## LD_SWITCH_SYSTEM_TEMACS instead,
4966 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4967 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4970 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4971 ## find X at run-time.
4972 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4973 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4974 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4975 ## had different values in configure (in ac_link) and src/Makefile.in.
4976 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4977 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4980 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4981 case "$canonical" in
4982 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4983 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4987 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4989 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4992 if test x$ac_enable_profiling != x ; then
4994 *freebsd | gnu-linux) ;;
4995 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4999 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
5001 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
5003 ## Common for all window systems
5004 if test "$window_system" != "none"; then
5005 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
5006 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
5007 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
5010 AC_SUBST(WINDOW_SYSTEM_OBJ)
5012 AH_TOP([/* GNU Emacs site configuration template file.
5014 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2015
5015 Free Software Foundation, Inc.
5017 This file is part of GNU Emacs.
5019 GNU Emacs is free software: you can redistribute it and/or modify
5020 it under the terms of the GNU General Public License as published by
5021 the Free Software Foundation, either version 3 of the License, or
5022 (at your option) any later version.
5024 GNU Emacs is distributed in the hope that it will be useful,
5025 but WITHOUT ANY WARRANTY; without even the implied warranty of
5026 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5027 GNU General Public License for more details.
5029 You should have received a copy of the GNU General Public License
5030 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5033 /* No code in Emacs #includes config.h twice, but some bits of code
5034 intended to work with other packages as well (like gmalloc.c)
5035 think they can include it as many times as they like. */
5036 #ifndef EMACS_CONFIG_H
5037 #define EMACS_CONFIG_H
5040 AH_BOTTOM([#include <conf_post.h>
5042 #endif /* EMACS_CONFIG_H */
5051 #### Report on what we decided to do.
5052 #### Report GTK as a toolkit, even if it doesn't use Xt.
5053 #### It makes printing result more understandable as using GTK sets
5054 #### toolkit_scroll_bars to yes by default.
5055 if test "${HAVE_GTK}" = "yes"; then
5056 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5059 if test $USE_ACL -ne 0; then
5060 ACL_SUMMARY="yes $LIB_ACL"
5066 Configured for \`${canonical}'.
5068 Where should the build process find the source code? ${srcdir}
5069 What compiler should emacs be built with? ${CC} ${CFLAGS}
5070 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5071 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5072 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5073 What window system should Emacs use? ${window_system}
5074 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5076 if test -n "${x_includes}"; then
5077 echo " Where do we find X Windows header files? ${x_includes}"
5079 echo " Where do we find X Windows header files? Standard dirs"
5081 if test -n "${x_libraries}"; then
5082 echo " Where do we find X Windows libraries? ${x_libraries}"
5084 echo " Where do we find X Windows libraries? Standard dirs"
5088 emacs_config_features=
5089 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
5090 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5094 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5095 *) eval val=\${HAVE_$opt} ;;
5097 test x"$val" = xno && continue
5098 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5101 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5102 [Summary of some of the main features enabled by configure.])
5104 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5105 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5106 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5107 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5108 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5109 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5110 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5111 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5113 echo " Does Emacs support sound? ${HAVE_SOUND}"
5115 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5116 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5117 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5118 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5119 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5120 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5121 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5122 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5123 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5125 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5126 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5127 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5128 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5129 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5131 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5134 if test -n "${EMACSDATA}"; then
5135 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5137 if test -n "${EMACSDOC}"; then
5138 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5143 if test "$HAVE_NS" = "yes"; then
5145 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5146 The installed application will go to nextstep/Emacs.app and can be
5147 run or moved from there."
5148 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5149 echo "The application will be fully self-contained."
5151 echo "The lisp resources for the application will be installed under ${prefix}.
5152 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5153 to run if these resources are not installed."
5158 if test "${opsys}" = "cygwin"; then
5160 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5166 # Remove any trailing slashes in these variables.
5167 [test "${prefix}" != NONE &&
5168 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5169 test "${exec_prefix}" != NONE &&
5170 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5172 if test "$HAVE_NS" = "yes"; then
5173 if test "$NS_IMPL_GNUSTEP" = yes; then
5174 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5175 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5176 ns_check_file=Resources/Info-gnustep.plist
5178 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5179 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5180 ns_check_file=Contents/Info.plist
5182 AC_SUBST(ns_check_file)
5185 dnl config.status treats $srcdir specially, so I think this is ok...
5186 AC_CONFIG_FILES([$srcdir/doc/man/emacs.1])
5188 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5189 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5190 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5191 dnl (else you get "no `Makefile.am' found for any configure output").
5192 dnl This will work, but you get a config.status that is not quite right
5193 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5194 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5195 dnl it seems better to just live with the duplication.
5196 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5198 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5199 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5200 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5201 leim/Makefile nextstep/Makefile nt/Makefile])
5203 dnl test/ is not present in release tarfiles.
5204 opt_makefile=test/automated/Makefile
5206 if test -f "$srcdir/$opt_makefile.in"; then
5207 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5208 dnl Again, it's best not to use a variable. Though you can add
5209 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5210 AC_CONFIG_FILES([test/automated/Makefile])
5214 dnl The admin/ directory used to be excluded from tarfiles.
5215 if test -d $srcdir/admin; then
5216 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5217 AC_CONFIG_FILES([admin/unidata/Makefile])
5218 AC_CONFIG_FILES([admin/grammars/Makefile])
5222 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5224 AC_SUBST(SUBDIR_MAKEFILES_IN)
5226 dnl You might wonder (I did) why epaths.h is generated by running make,
5227 dnl rather than just letting configure generate it from epaths.in.
5228 dnl One reason is that the various paths are not fully expanded (see above);
5229 dnl eg gamedir=${prefix}/var/games/emacs.
5230 dnl Secondly, the GNU Coding standards require that one should be able
5231 dnl to run `make prefix=/some/where/else' and override the values set
5232 dnl by configure. This also explains the `move-if-change' test and
5233 dnl the use of force in the `epaths-force' rule in Makefile.in.
5234 AC_CONFIG_COMMANDS([src/epaths.h], [
5235 if test "${opsys}" = "mingw32"; then
5236 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5238 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5239 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5240 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5242 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5243 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5245 AC_CONFIG_COMMANDS([src/.gdbinit], [
5246 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5247 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5251 dnl Perhaps this would be better named doc-emacs-emacsver.texi?
5252 dnl See comments for etc-refcards-emacsver.tex.
5253 dnl Since we get a doc/emacs directory generated anyway, for the Makefile,
5254 dnl it is not quite the same. But we are generating in $srcdir.
5255 AC_CONFIG_COMMANDS([doc/emacs/emacsver.texi], [
5256 ${MAKE-make} -s --no-print-directory -C doc/emacs doc-emacsver || \
5257 AC_MSG_ERROR(['doc/emacs/emacsver.texi' could not be made.])
5260 dnl If we give this the more natural name, etc/refcards/emacsver.texi,
5261 dnl then a directory etc/refcards is created in the build directory,
5262 dnl which is probably harmless, but confusing (in out-of-tree builds).
5263 dnl (If we were to generate etc/refcards/Makefile, this might change.)
5264 dnl It is really $srcdir/etc/refcards/emacsver.tex that we generate.
5265 AC_CONFIG_COMMANDS([etc-refcards-emacsver.tex], [
5266 ${MAKE-make} -s MAKEFILE_NAME=do-not-make-Makefile etc-emacsver || \
5267 AC_MSG_ERROR(['etc/refcards/emacsver.tex' could not be made.])
5272 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])