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, 1999-2014 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, 24.4.50, 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.
141 configuration=${host_alias-${build_alias-$host}}
143 dnl We get MINGW64 with MSYS2, MINGW32 with MSYS.
146 . $srcdir/nt/mingw-cfg.site
150 # srcdir is an absolute path. In this case, force the format
151 # "/c/foo/bar", to simplify later conversions to native Windows
152 # format ("c:/foo/bar").
153 srcdir=`cd "${srcdir}" && pwd -W`
154 srcdir="/${srcdir:0:1}${srcdir:2}"
159 dnl Support for --program-prefix, --program-suffix and
160 dnl --program-transform-name options
163 dnl It is important that variables on the RHS not be expanded here,
164 dnl hence the single quotes. This is per the GNU coding standards, see
165 dnl (autoconf) Installation Directory Variables
166 dnl See also epaths.h below.
167 lispdir='${datadir}/emacs/${version}/lisp'
168 standardlisppath='${lispdir}'
169 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
170 '${datadir}/emacs/site-lisp'
171 lisppath='${locallisppath}:${standardlisppath}'
172 etcdir='${datadir}/emacs/${version}/etc'
173 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
174 etcdocdir='${datadir}/emacs/${version}/etc'
175 gamedir='${localstatedir}/games/emacs'
177 dnl Special option to disable the most of other options.
179 [AS_HELP_STRING([--without-all],
180 [omit almost all features and build
181 small executable with minimal dependencies])],
182 [with_features=$withval],
185 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
186 dnl Create a new --with option that defaults to being disabled.
187 dnl NAME is the base name of the option. The shell variable with_NAME
188 dnl will be set to either the user's value (if the option is
189 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
190 dnl option is not specified). Note that the shell variable name is
191 dnl constructed as autoconf does, by replacing non-alphanumeric
192 dnl characters with "_".
193 dnl HELP-STRING is the help text for the option.
194 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
195 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
196 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
199 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
200 dnl Create a new --with option that defaults to $with_features.
201 dnl NAME is the base name of the option. The shell variable with_NAME
202 dnl will be set either to 'no' (for a plain --without-NAME) or to
203 dnl 'yes' (if the option is not specified). Note that the shell
204 dnl variable name is constructed as autoconf does, by replacing
205 dnl non-alphanumeric characters with "_".
206 dnl HELP-STRING is the help text for the option.
207 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
208 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
209 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
212 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
213 if test "$with_pop" = yes; then
214 AC_DEFINE(MAIL_USE_POP)
216 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
218 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
219 if test "$with_kerberos" != no; then
222 AH_TEMPLATE(KERBEROS,
223 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
225 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
226 if test "${with_kerberos5}" != no; then
227 if test "${with_kerberos}" = no; then
231 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
234 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
235 dnl FIXME hesiod support may not be present, so it seems like an error
236 dnl to define, or at least use, this unconditionally.
237 if test "$with_hesiod" != no; then
238 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
241 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
242 if test "$with_mmdf" != no; then
243 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
246 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
247 if test "$with_mail_unlink" != no; then
248 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
251 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
252 [string giving default POP mail host])],
253 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
255 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
256 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
257 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
258 [ case "${withval}" in
259 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
260 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
261 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
266 [with_sound=$with_features])
268 dnl FIXME currently it is not the last.
269 dnl This should be the last --with option, because --with-x is
270 dnl added later on when we find the file name of X, and it's best to
271 dnl keep them together visually.
272 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
273 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
274 [ case "${withval}" in
275 y | ye | yes ) val=gtk ;;
277 l | lu | luc | luci | lucid ) val=lucid ;;
278 a | at | ath | athe | athen | athena ) val=athena ;;
279 m | mo | mot | moti | motif ) val=motif ;;
280 g | gt | gtk ) val=gtk ;;
284 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
285 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
286 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
287 `athena' and `lucid' are synonyms.])
293 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
294 if test "$with_wide_int" = yes; then
295 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
298 dnl _ON results in a '--without' option in the --help output, so
299 dnl the help text should refer to "don't compile", etc.
300 with_xpm_set=${with_xpm+set}
301 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
302 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
303 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
304 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
305 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
306 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
307 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
308 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
310 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
311 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
312 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
314 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
315 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
316 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
317 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
318 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
320 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
321 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
322 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
323 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
324 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
325 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
326 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
328 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
329 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
330 [ case "${withval}" in
331 y | ye | yes ) val=yes ;;
333 g | gf | gfi | gfil | gfile ) val=gfile ;;
334 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
335 w | w3 | w32 ) val=w32 ;;
336 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
337 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
338 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
339 otherwise for the first of `gfile' or `inotify' that is usable.])
342 with_file_notification=$val
344 [with_file_notification=$with_features])
346 ## For the times when you want to build Emacs but don't have
347 ## a suitable makeinfo, and can live without the manuals.
348 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
349 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
351 ## This might be a 'configure' arg.
352 AC_SUBST([ACLOCAL_PATH])
354 ## Makefile.in needs the cache file name.
357 ## This is an option because I do not know if all info/man support
358 ## compressed files, nor how to test if they do so.
359 OPTION_DEFAULT_ON([compress-install],
360 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
361 make GZIP_PROG= install])
363 AC_ARG_WITH(gameuser,dnl
364 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
365 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
366 && gameuser="${with_gameuser}"
367 test "X$gameuser" = X && gameuser=games
369 AC_ARG_WITH([gnustep-conf],dnl
370 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
371 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
372 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
373 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
374 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
375 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
377 AC_ARG_ENABLE(ns-self-contained,
378 [AS_HELP_STRING([--disable-ns-self-contained],
379 [disable self contained build under NeXTstep])],
380 EN_NS_SELF_CONTAINED=$enableval,
381 EN_NS_SELF_CONTAINED=yes)
383 AC_ARG_ENABLE(locallisppath,
384 [AS_HELP_STRING([--enable-locallisppath=PATH],
385 [directories Emacs should search for lisp files specific
387 if test "${enableval}" = "no"; then
389 elif test "${enableval}" != "yes"; then
390 locallisppath=${enableval}
393 AC_ARG_ENABLE(checking,
394 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
395 [enable expensive run-time checks. With LIST,
396 enable only specific categories of checks.
397 Categories are: all,yes,no.
398 Flags are: stringbytes, stringoverrun, stringfreelist,
399 xmallocoverrun, conslist, glyphs])],
400 [ac_checking_flags="${enableval}"],[])
401 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
402 for check in $ac_checking_flags
405 # these set all the flags to specific states
406 yes) ac_enable_checking=1 ;;
407 no) ac_enable_checking= ;
408 ac_gc_check_stringbytes= ;
409 ac_gc_check_string_overrun= ;
410 ac_gc_check_string_free_list= ;
411 ac_xmalloc_overrun= ;
412 ac_gc_check_cons_list= ;
414 all) ac_enable_checking=1 ;
415 ac_gc_check_stringbytes=1 ;
416 ac_gc_check_string_overrun=1 ;
417 ac_gc_check_string_free_list=1 ;
418 ac_xmalloc_overrun=1 ;
419 ac_gc_check_cons_list=1 ;
421 # these enable particular checks
422 stringbytes) ac_gc_check_stringbytes=1 ;;
423 stringoverrun) ac_gc_check_string_overrun=1 ;;
424 stringfreelist) ac_gc_check_string_free_list=1 ;;
425 xmallocoverrun) ac_xmalloc_overrun=1 ;;
426 conslist) ac_gc_check_cons_list=1 ;;
427 glyphs) ac_glyphs_debug=1 ;;
428 *) AC_MSG_ERROR(unknown check category $check) ;;
433 if test x$ac_enable_checking != x ; then
434 AC_DEFINE(ENABLE_CHECKING, 1,
435 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
437 if test x$ac_gc_check_stringbytes != x ; then
438 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
439 [Define this temporarily to hunt a bug. If defined, the size of
440 strings is redundantly recorded in sdata structures so that it can
441 be compared to the sizes recorded in Lisp strings.])
443 if test x$ac_gc_check_string_overrun != x ; then
444 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
445 [Define this to check for short string overrun.])
447 if test x$ac_gc_check_string_free_list != x ; then
448 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
449 [Define this to check the string free list.])
451 if test x$ac_xmalloc_overrun != x ; then
452 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
453 [Define this to check for malloc buffer overrun.])
455 if test x$ac_gc_check_cons_list != x ; then
456 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
457 [Define this to check for errors in cons list.])
459 if test x$ac_glyphs_debug != x ; then
460 AC_DEFINE(GLYPH_DEBUG, 1,
461 [Define this to enable glyphs debugging code.])
464 AC_ARG_ENABLE(check-lisp-object-type,
465 [AS_HELP_STRING([--enable-check-lisp-object-type],
466 [enable compile time checks for the Lisp_Object data type.
467 This is useful for development for catching certain types of bugs.])],
468 if test "${enableval}" != "no"; then
469 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
470 [Define this to enable compile time checks for the Lisp_Object data type.])
474 dnl The name of this option is unfortunate. It predates, and has no
475 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
476 dnl Actually, it stops it working.
477 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
478 AC_ARG_ENABLE(profiling,
479 [AS_HELP_STRING([--enable-profiling],
480 [build emacs with low-level, gprof profiling support.
481 Mainly useful for debugging Emacs itself. May not work on
482 all platforms. Stops profiler.el working.])],
483 [ac_enable_profiling="${enableval}"],[])
484 if test x$ac_enable_profiling != x ; then
485 PROFILING_CFLAGS="-DPROFILING=1 -pg"
489 AC_SUBST(PROFILING_CFLAGS)
491 AC_ARG_ENABLE(autodepend,
492 [AS_HELP_STRING([--enable-autodepend],
493 [automatically generate dependencies to .h-files.
494 Requires gcc, enabled if found.])],
495 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
497 AC_ARG_ENABLE(gtk-deprecation-warnings,
498 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
499 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
500 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
502 dnl This used to use changequote, but, apart from `changequote is evil'
503 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
504 dnl the great gob of text. Thus it's not processed for possible expansion.
505 dnl Just make sure the brackets remain balanced.
507 dnl Since Emacs can't find matching pairs of quotes, boundaries are
508 dnl indicated by comments.
512 ### If you add support for a new configuration, add code to this
513 ### switch statement to recognize your configuration name and select
514 ### the appropriate opsys.
516 ### As far as handling version numbers on operating systems is
517 ### concerned, make sure things will fail in a fixable way. If
518 ### /etc/MACHINES doesn't say anything about version numbers, be
519 ### prepared to handle anything reasonably. If version numbers
520 ### matter, be sure /etc/MACHINES says something about it.
523 case "${canonical}" in
525 ## GNU/Linux and similar ports
540 ## FreeBSD kernel + glibc based userland
551 *-*-openbsd* | *-*-mirbsd* )
555 ## Apple Darwin / Mac OS X
557 case "${canonical}" in
564 ## Use fink packages if available.
565 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
566 ## if test -d /sw/include && test -d /sw/lib; then
567 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
568 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
577 ## HP 9000 series 700 and 800, running HP/UX
581 hppa*-hp-hpux1[1-9]* )
583 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
587 rs6000-ibm-aix4.[23]* )
590 powerpc-ibm-aix4.[23]* )
593 rs6000-ibm-aix[56]* )
596 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
600 ## Silicon Graphics machines
604 # Without defining _LANGUAGE_C, things get masked out in the headers
605 # so that, for instance, grepping for `free' in stdlib.h fails and
606 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
607 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
612 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
613 | x86_64-*-solaris2* | x86_64-*-sunos5*)
614 case "${canonical}" in
616 amd64-*-*|x86_64-*-*) ;;
620 case "${canonical}" in
621 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
623 emacs_check_sunpro_c=yes
625 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
626 ## Note that Emacs 23.1's NEWS said the following would be dropped.
627 *-sunos5.6* | *-solaris2.6* )
631 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
632 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
634 emacs_check_sunpro_c=yes
637 ## Watch out for a compiler that we know will not work.
638 case "${canonical}" in
639 *-solaris* | *-sunos5* )
640 if [ "x$CC" = x/usr/ucb/cc ]; then
641 ## /usr/ucb/cc doesn't work;
642 ## we should find some other compiler that does work.
650 ## Intel 386 machines where we don't care about the manufacturer.
652 case "${canonical}" in
653 *-darwin* ) opsys=darwin ;;
656 # MinGW overrides and adds some system headers in nt/inc.
657 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
659 *-sysv4.2uw* ) opsys=unixware ;;
660 *-sysv5uw* ) opsys=unixware ;;
661 *-sysv5OpenUNIX* ) opsys=unixware ;;
662 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
668 case "${canonical}" in
671 # MinGW overrides and adds some system headers in nt/inc.
672 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
674 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
683 ### If the code above didn't choose an operating system, just choose
684 ### an operating system based on the configuration name. You really
685 ### only want to use this when you have no idea what the right
686 ### operating system is; if you know what operating systems a machine
687 ### runs, it's cleaner to make it explicit in the case statement
689 if test x"${opsys}" = x; then
690 case "${canonical}" in
691 *-gnu* ) opsys=gnu ;;
701 if test $unported = yes; then
702 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
703 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
704 Check `etc/MACHINES' for recognized configuration names.])
708 #### Choose a compiler.
710 dnl Don't bother to test for C89.
711 AC_DEFUN([_AC_PROG_CC_C89], [$2])
713 dnl Sets GCC=yes if using gcc.
714 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
715 if test -n "$XCRUN"; then
716 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
717 test -n "$AR" && export AR
720 dnl Emacs needs C99 or later.
725 if test x$GCC = xyes; then
726 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
728 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
731 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
732 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
733 dnl that clash with MinGW.
734 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
736 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
737 AC_DEFUN([gl_CRYPTO_CHECK])
738 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
739 # as we don't use them.
740 AC_DEFUN([gl_FCNTL_O_FLAGS])
742 # Initialize gnulib right after choosing the compiler.
743 dnl Amongst other things, this sets AR and ARFLAGS.
746 if test "$ac_test_CFLAGS" != set; then
747 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
748 # if -g3 works and the user does not specify CFLAGS.
749 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
752 emacs_g3_CFLAGS='-g3';;
754 emacs_g3_CFLAGS='-g3 -O2';;
758 if test -n "$emacs_g3_CFLAGS"; then
759 emacs_save_CFLAGS=$CFLAGS
760 CFLAGS=$emacs_g3_CFLAGS
761 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
762 [emacs_cv_prog_cc_g3],
763 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
764 [emacs_cv_prog_cc_g3=yes],
765 [emacs_cv_prog_cc_g3=no])])
766 if test $emacs_cv_prog_cc_g3 != yes; then
767 CFLAGS=$emacs_save_CFLAGS
769 if test $opsys = mingw32; then
770 CFLAGS="$CFLAGS -gdwarf-2"
777 # No optimization flag was inferred for this non-GCC compiler.
778 # Try -O. This is needed for xlc on AIX; see Bug#14258.
779 emacs_save_CFLAGS=$CFLAGS
780 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
782 AC_CACHE_CHECK([whether $CC accepts -O],
783 [emacs_cv_prog_cc_o],
784 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
785 [emacs_cv_prog_cc_o=yes],
786 [emacs_cv_prog_cc_o=no])])
787 if test $emacs_cv_prog_cc_o != yes; then
788 CFLAGS=$emacs_save_CFLAGS
793 AC_ARG_ENABLE([gcc-warnings],
794 [AS_HELP_STRING([--enable-gcc-warnings],
795 [turn on lots of GCC warnings/errors. This is intended for
796 developers, and may generate false alarms when used
797 with older or non-GNU development tools.])],
800 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
802 gl_gcc_warnings=$enableval],
806 # clang is unduly picky about some things.
807 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
814 [emacs_cv_clang=yes],
815 [emacs_cv_clang=no])])
817 # When compiling with GCC, prefer -isystem to -I when including system
818 # include files, to avoid generating useless diagnostics for the files.
819 if test "$gl_gcc_warnings" != yes; then
821 if test "$emacs_cv_clang" = yes
823 # Turn off some warnings if supported.
824 gl_WARN_ADD([-Wno-switch])
825 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
826 gl_WARN_ADD([-Wno-pointer-sign])
831 # This, $nw, is the list of warnings we disable.
834 case $with_x_toolkit in
835 lucid | athena | motif)
836 # Old toolkits mishandle 'const'.
837 nw="$nw -Wwrite-strings"
840 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
843 AC_SUBST([WERROR_CFLAGS])
845 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
846 nw="$nw -Woverlength-strings" # Not a problem these days
847 nw="$nw -Wlogical-op" # any use of fwrite provokes this
848 nw="$nw -Wformat-nonliteral" # we do this a lot
849 nw="$nw -Wvla" # warnings in gettext.h
850 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
851 nw="$nw -Wswitch-default" # Too many warnings for now
852 nw="$nw -Winline" # OK to ignore 'inline'
853 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
854 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
855 # signed overflow has undefined behavior
856 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
857 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
858 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
860 # Emacs doesn't care about shadowing; see
861 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
864 # Emacs's use of alloca inhibits protecting the stack.
865 nw="$nw -Wstack-protector"
867 # The following line should be removable at some point.
868 nw="$nw -Wsuggest-attribute=pure"
870 # This part is merely for shortening the command line,
871 # since -Wno-FOO needs to be added below regardless.
872 nw="$nw -Wmissing-field-initializers"
874 nw="$nw -Wtype-limits"
875 nw="$nw -Wunused-parameter"
877 if test $emacs_cv_clang = yes; then
878 nw="$nw -Wcast-align"
881 gl_MANYWARN_ALL_GCC([ws])
882 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
886 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
887 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
888 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
889 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
890 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
891 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
892 gl_WARN_ADD([-Wno-format-nonliteral])
894 # In spite of excluding -Wlogical-op above, it is enabled, as of
895 # gcc 4.5.0 20090517.
896 gl_WARN_ADD([-Wno-logical-op])
898 # More things that clang is unduly picky about.
899 if test $emacs_cv_clang = yes; then
900 gl_WARN_ADD([-Wno-format-extra-args])
901 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
902 gl_WARN_ADD([-Wno-unused-command-line-argument])
903 gl_WARN_ADD([-Wno-unused-value])
906 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
907 AH_VERBATIM([FORTIFY_SOURCE],
908 [/* Enable compile-time and run-time bounds-checking, and some warnings,
909 without upsetting glibc 2.15+. */
910 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
911 # define _FORTIFY_SOURCE 2
914 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
916 # We use a slightly smaller set of warning options for lib/.
917 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
919 nw="$nw -Wunused-macros"
921 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
922 AC_SUBST([GNULIB_WARN_CFLAGS])
932 AC_ARG_ENABLE(link-time-optimization,
933 [AS_HELP_STRING([--enable-link-time-optimization],
934 [build emacs with link-time optimization.
935 This requires GCC 4.5.0 or later, or clang.
936 (Note that clang support is experimental - see INSTALL.)
937 It also makes Emacs harder to debug, and when we tried it
938 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
939 recommended for typical use.])],
940 if test "${enableval}" != "no"; then
942 if test $emacs_cv_clang = yes; then
943 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
944 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
945 if test -x "$GOLD_PLUGIN"; then
948 elif test x$GCC = xyes; then
949 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
950 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
951 if test x$CPUS != x; then
957 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
959 if test -z "$LTO"; then
963 CFLAGS="$CFLAGS $LTO"
964 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
965 [ac_lto_supported=yes], [ac_lto_supported=no])
968 AC_MSG_RESULT([$ac_lto_supported])
969 if test "$ac_lto_supported" = "yes"; then
970 CFLAGS="$CFLAGS $LTO"
971 if test x$emacs_cv_clang = xyes; then
972 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
973 # WARNING: 'ar --plugin ...' doesn't work without
974 # command, so plugin name is appended to ARFLAGS.
975 ARFLAGS="cru --plugin $GOLD_PLUGIN"
976 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
978 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
979 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
980 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
981 dnl dump core on Fedora 20, so play it safe for now.
982 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
983 [CFLAGS="$CFLAGS -ffat-lto-objects"])
988 dnl Some other nice autoconf tests.
989 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
992 dnl if test "x$RANLIB" = x; then
997 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
998 dnl can be made to directories. This is not relevant for our usage, and
999 dnl excludes some cases that work fine for us. Eg MS Windows or files
1000 dnl hosted on AFS, both examples where simple links work, but links to
1001 dnl directories fail. We use a cut-down version instead.
1004 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1005 rm -f conf$$ conf$$.file
1007 LN_S_FILEONLY='cp -p'
1009 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1010 dnl random program in the current directory.
1011 if (echo >conf$$.file) 2>/dev/null; then
1012 if ln -s conf$$.file conf$$ 2>/dev/null; then
1013 if test "$opsys" = "mingw32"; then
1014 LN_S_FILEONLY='/bin/ln -s'
1016 LN_S_FILEONLY='ln -s'
1018 elif ln conf$$.file conf$$ 2>/dev/null; then
1019 if test "$opsys" = "mingw32"; then
1020 LN_S_FILEONLY=/bin/ln
1027 rm -f conf$$ conf$$.file
1029 if test "$LN_S_FILEONLY" = "ln -s"; then
1030 AC_MSG_RESULT([yes])
1032 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1035 AC_SUBST(LN_S_FILEONLY)
1038 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1039 dnl doesn't support links to directories, as in "ln file dir". But that
1040 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1041 dnl executables at "make install" time.
1042 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1043 dnl for more details.
1044 if test "$opsys" = "mingw32"; then
1048 dnl On some Debian versions, "install-info" prints irritating messages
1049 dnl "This is not dpkg install-info anymore, but GNU install-info"
1050 dnl if called via an absolute file name.
1051 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1052 dnl Sadly some people may have an old ginstall-info installed on
1053 dnl non-Debian systems, so we can't use this.
1054 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1055 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1057 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1058 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1059 dnl Don't use GZIP, which is used by gzip for additional parameters.
1060 AC_PATH_PROG(GZIP_PROG, gzip)
1062 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1063 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1065 if test $opsys = gnu-linux; then
1066 AC_PATH_PROG(PAXCTL, paxctl,,
1067 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1068 if test "X$PAXCTL" != X; then
1069 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1070 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1071 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1072 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1075 if test "${SETFATTR+set}" != set; then
1076 AC_CACHE_CHECK([for setfattr],
1077 [emacs_cv_prog_setfattr],
1079 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1080 emacs_cv_prog_setfattr=yes
1082 emacs_cv_prog_setfattr=no
1084 if test "$emacs_cv_prog_setfattr" = yes; then
1090 AC_SUBST([SETFATTR])
1094 ## Need makeinfo >= 4.7 (?) to build the manuals.
1095 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1096 dnl By this stage, configure has already checked for egrep and set EGREP,
1097 dnl or exited with an error if no egrep was found.
1098 if test "$MAKEINFO" != "no"; then
1100 $MAKEINFO --version 2> /dev/null |
1101 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1107 ## Makeinfo is unusual. For a released Emacs, the manuals are
1108 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1109 ## therefore in the category of "special tools" not normally required, which
1110 ## configure does not have to check for (eg autoconf itself).
1111 ## In a repository checkout on the other hand, the manuals are not included.
1112 ## So makeinfo is a requirement to build from the repository, and configure
1113 ## should test for it as it does for any other build requirement.
1114 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1115 ## with pre-built manuals, from a repository checkout.
1118 if test "$MAKEINFO" = "no"; then
1120 if test "x${with_makeinfo}" = "xno"; then
1122 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1123 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1124 source tree does not seem to have pre-built manuals in the `info' directory.
1125 Either install a suitable version of makeinfo, or re-run configure
1126 with the `--without-makeinfo' option to build without the manuals.] )
1129 AC_SUBST(HAVE_MAKEINFO)
1131 if test $opsys = mingw32; then
1132 DOCMISC_W32=efaq-w32
1136 AC_SUBST(DOCMISC_W32)
1138 dnl Add our options to ac_link now, after it is set up.
1140 if test x$GCC = xyes; then
1141 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1142 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1144 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1145 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1148 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1149 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1150 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1151 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1152 dnl if not built to support GNU ld.
1154 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1155 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1156 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1157 dnl Eg "make LDFLAGS=... all" could run into problems,
1158 dnl http://bugs.debian.org/684788
1159 dnl * unnecessary, since temacs is the only thing that actually needs it.
1160 dnl Indeed this is where it was originally, prior to:
1161 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1162 late_LDFLAGS="$LDFLAGS"
1163 if test x$GCC = xyes; then
1164 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1166 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1169 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1171 AC_MSG_CHECKING([for -znocombreloc])
1172 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1173 [AC_MSG_RESULT(yes)],
1174 LDFLAGS_NOCOMBRELOC=
1175 [AC_MSG_RESULT(no)])
1177 LDFLAGS="$late_LDFLAGS"
1179 AC_CACHE_CHECK([whether addresses are sanitized],
1180 [emacs_cv_sanitize_address],
1183 [[#ifndef __has_feature
1184 #define __has_feature(f) 0
1186 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1188 error "Addresses are not sanitized.";
1191 [emacs_cv_sanitize_address=yes],
1192 [emacs_cv_sanitize_address=no])])
1194 dnl The function dump-emacs will not be defined and temacs will do
1195 dnl (load "loadup") automatically unless told otherwise.
1196 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1198 your-opsys-here) CANNOT_DUMP=yes ;;
1201 if test "$CANNOT_DUMP" = "yes"; then
1202 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1203 elif test "$emacs_cv_sanitize_address" = yes; then
1204 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1207 AC_SUBST(CANNOT_DUMP)
1210 UNEXEC_OBJ=unexelf.o
1212 # MSDOS uses unexcoff.o
1214 UNEXEC_OBJ=unexaix.o
1220 UNEXEC_OBJ=unexmacosx.o
1223 UNEXEC_OBJ=unexhp9k800.o
1226 UNEXEC_OBJ=unexw32.o
1229 # Use the Solaris dldump() function, called from unexsol.c, to dump
1230 # emacs, instead of the generic ELF dump code found in unexelf.c.
1231 # The resulting binary has a complete symbol table, and is better
1232 # for debugging and other observability tools (debuggers, pstack, etc).
1234 # If you encounter a problem using dldump(), please consider sending
1235 # a message to the OpenSolaris tools-linking mailing list:
1236 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1238 # It is likely that dldump() works with older Solaris too, but this has
1239 # not been tested, so for now this change is for Solaris 10 or newer.
1240 UNEXEC_OBJ=unexsol.o
1247 ## Let `ld' find image libs and similar things in /usr/local/lib.
1248 ## The system compiler, GCC, has apparently been modified to not
1249 ## look there, contrary to what a stock GCC would do.
1250 ### It's not our place to do this. See bug#10313#17.
1251 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1256 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1257 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1261 ### It's not our place to do this. See bug#10313#17.
1262 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1267 ## Han Boetes <han@boetes.org> says this is necessary,
1268 ## otherwise Emacs dumps core on elf systems.
1269 LD_SWITCH_SYSTEM="-Z"
1272 AC_SUBST(LD_SWITCH_SYSTEM)
1274 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1276 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1277 ## which has not been defined yet. When this was handled with cpp,
1278 ## it was expanded to null when configure sourced the s/*.h file.
1279 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1280 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1281 ## (or somesuch), but because it is supposed to go at the _front_
1282 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1283 ## Compare with the gnu-linux case below, which added to the end
1284 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1285 ## LD_SWITCH_SYSTEM_TEMACS.
1288 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1295 AC_CHECK_DECL([__ELF__])
1296 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1297 ## With ELF, make sure that all common symbols get allocated to in the
1298 ## data section. Otherwise, the dump of temacs may miss variables in
1299 ## the shared library that have been initialized. For example, with
1300 ## GNU libc, __malloc_initialized would normally be resolved to the
1301 ## shared library's .bss section, which is fatal.
1302 if test "x$GCC" = "xyes"; then
1303 C_SWITCH_MACHINE="-fno-common"
1305 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1308 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1309 dnl albeit under the mistaken assumption that said file
1310 dnl was no longer used.
1311 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1315 AC_SUBST(C_SWITCH_MACHINE)
1317 AC_SUBST(UNEXEC_OBJ)
1320 ## Some programs in src produce warnings saying certain subprograms
1321 ## are too complex and need a MAXMEM value greater than 2000 for
1322 ## additional optimization. --nils@exp-math.uni-essen.de
1323 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1324 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1325 if test "$opsys" = "mingw32"; then
1326 case "$canonical" in
1327 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1328 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1331 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1332 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1333 AC_SUBST(C_SWITCH_SYSTEM)
1338 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1339 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1341 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1343 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1345 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1347 ## Motif needs -lgen.
1348 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1351 AC_SUBST(LIBS_SYSTEM)
1353 ### Make sure subsequent tests use flags consistent with the build flags.
1355 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1356 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1358 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1361 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1362 AC_DEFUN([AC_TYPE_SIZE_T])
1363 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1364 AC_DEFUN([AC_TYPE_UID_T])
1366 # sqrt and other floating-point functions such as fmod and frexp
1367 # are found in -lm on many systems.
1369 AC_SEARCH_LIBS([sqrt], [m])
1370 if test "X$LIBS" = "X$OLD_LIBS"; then
1373 LIB_MATH=$ac_cv_search_sqrt
1377 dnl Current possibilities handled by sed (aix4-2 -> aix,
1378 dnl gnu-linux -> gnu/linux, etc.):
1379 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1380 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1381 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1388 ## Adding -lm confuses the dynamic linker, so omit it.
1391 freebsd | dragonfly )
1392 SYSTEM_TYPE=berkeley-unix
1394 gnu-linux | gnu-kfreebsd )
1396 hpux10-20 | hpux11 )
1400 SYSTEM_TYPE=windows-nt
1402 dnl NB this may be adjusted below.
1404 SYSTEM_TYPE=berkeley-unix
1408 SYSTEM_TYPE=usg-unix-v
1414 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1415 [The type of system you are compiling for; sets `system-type'.])
1418 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1419 pre_PKG_CONFIG_LIBS=$LIBS
1421 PKG_PROG_PKG_CONFIG(0.9.0)
1423 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1424 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1425 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1426 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1427 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1428 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1430 AC_DEFUN([EMACS_CHECK_MODULES],
1431 [PKG_CHECK_MODULES([$1], [$2],
1432 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1433 m4_default([$3], [HAVE_$1=yes])],
1434 [m4_default([$4], [HAVE_$1=no])])])
1437 if test "${with_sound}" != "no"; then
1438 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1439 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1440 have_sound_header=yes, [], [
1442 #define WIN32_LEAN_AND_MEAN
1443 #include <windows.h>
1446 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1447 AC_MSG_ERROR([OSS sound support requested but not found.])
1449 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1450 # Emulation library used on NetBSD.
1451 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1452 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1453 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1454 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1455 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1459 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1461 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1462 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1463 if test $HAVE_ALSA = yes; then
1464 SAVE_CFLAGS="$CFLAGS"
1466 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1467 LIBS="$ALSA_LIBS $LIBS"
1468 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1469 emacs_alsa_normal=yes,
1470 emacs_alsa_normal=no)
1471 if test "$emacs_alsa_normal" != yes; then
1472 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1473 [[snd_lib_error_set_handler (0);]])],
1474 emacs_alsa_subdir=yes,
1475 emacs_alsa_subdir=no)
1476 if test "$emacs_alsa_subdir" != yes; then
1477 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1479 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1482 CFLAGS="$SAVE_CFLAGS"
1484 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1485 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1486 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1487 elif test "${with_sound}" = "alsa"; then
1488 AC_MSG_ERROR([ALSA sound support requested but not found.])
1490 fi dnl with_sound = alsa|yes
1492 dnl Define HAVE_SOUND if we have sound support. We know it works and
1493 dnl compiles only on the specified platforms. For others, it
1494 dnl probably doesn't make sense to try.
1495 dnl FIXME So surely we should bypass this whole section if not using
1496 dnl one of these platforms?
1497 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1499 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1500 dnl Adjust the --with-sound help text if you change this.
1501 gnu-linux|freebsd|netbsd|mingw32)
1502 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1508 AC_SUBST(CFLAGS_SOUND)
1511 dnl checks for header files
1512 AC_CHECK_HEADERS_ONCE(
1517 sys/utsname.h pwd.h utmp.h util.h)
1519 AC_MSG_CHECKING(if personality LINUX32 can be set)
1520 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1521 emacs_cv_personality_linux32=yes,
1522 emacs_cv_personality_linux32=no)
1523 AC_MSG_RESULT($emacs_cv_personality_linux32)
1525 if test $emacs_cv_personality_linux32 = yes; then
1526 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1527 [Define to 1 if personality LINUX32 can be set.])
1530 # Note that Solaris has sys/sysinfo.h which defines struct
1531 # sysinfo as well. To make sure that we're using GNU/Linux
1532 # sysinfo, we explicitly set one of its fields.
1533 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1534 AC_MSG_CHECKING([if Linux sysinfo may be used])
1535 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1536 [[struct sysinfo si;
1539 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1540 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1541 if test $emacs_cv_linux_sysinfo = yes; then
1542 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1543 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1544 [[struct sysinfo si; return si.mem_unit]])],
1545 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1546 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1550 dnl On Solaris 8 there's a compilation warning for term.h because
1551 dnl it doesn't define `bool'.
1552 AC_CHECK_HEADERS(term.h, , , -)
1554 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1556 if test $ac_cv_have_decl_sys_siglist != yes; then
1557 # For Tru64, at least:
1558 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1563 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1564 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1565 #if HAVE_SYS_SOCKET_H
1566 #include <sys/socket.h>
1568 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1569 #if HAVE_SYS_SOCKET_H
1570 #include <sys/socket.h>
1572 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1573 #if HAVE_SYS_SOCKET_H
1574 #include <sys/socket.h>
1577 dnl checks for structure members
1578 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1579 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1580 struct ifreq.ifr_addr,
1581 struct ifreq.ifr_addr.sa_len], , ,
1582 [AC_INCLUDES_DEFAULT
1583 #if HAVE_SYS_SOCKET_H
1584 #include <sys/socket.h>
1590 dnl Check for endianness.
1591 dnl AC_C_BIGENDIAN is done by gnulib.
1593 dnl check for Make feature
1598 dnl check if we have GCC and autodepend is on.
1599 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1600 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1601 SAVE_CFLAGS="$CFLAGS"
1602 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1603 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1604 CFLAGS="$SAVE_CFLAGS"
1605 test -f deps.d || ac_enable_autodepend=no
1607 AC_MSG_RESULT([$ac_enable_autodepend])
1608 if test $ac_enable_autodepend = yes; then
1609 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1610 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1611 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1612 deps_frag=autodeps.mk
1615 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1616 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1617 deps_frag=$srcdir/src/$deps_frag
1620 AC_SUBST_FILE(deps_frag)
1621 AC_SUBST_FILE(lwlib_deps_frag)
1622 AC_SUBST_FILE(oldxmenu_deps_frag)
1624 lisp_frag=$srcdir/src/lisp.mk
1625 AC_SUBST_FILE(lisp_frag)
1628 dnl checks for operating system services
1629 AC_SYS_LONG_FILE_NAMES
1631 #### Choose a window system.
1633 ## We leave window_system equal to none if
1634 ## we end up building without one. Any new window system should
1635 ## set window_system to an appropriate value and add objects to
1636 ## window-system-specific substs.
1640 if test "$no_x" != yes; then
1644 LD_SWITCH_X_SITE_RPATH=
1645 if test "${x_libraries}" != NONE; then
1646 if test -n "${x_libraries}"; then
1647 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1648 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1650 x_default_search_path=""
1651 x_search_path=${x_libraries}
1652 if test -z "${x_search_path}"; then
1653 x_search_path=/usr/lib
1655 for x_library in `echo ${x_search_path}: | \
1656 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1658 ${x_library}/X11/%L/%T/%N%C%S:\
1659 ${x_library}/X11/%l/%T/%N%C%S:\
1660 ${x_library}/X11/%T/%N%C%S:\
1661 ${x_library}/X11/%L/%T/%N%S:\
1662 ${x_library}/X11/%l/%T/%N%S:\
1663 ${x_library}/X11/%T/%N%S"
1664 if test x"${x_default_search_path}" = x; then
1665 x_default_search_path=${x_search_path}
1667 x_default_search_path="${x_search_path}:${x_default_search_path}"
1671 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1673 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1674 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1677 if test x"${x_includes}" = x; then
1678 bitmapdir=/usr/include/X11/bitmaps
1680 # accumulate include directories that have X11 bitmap subdirectories
1682 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1683 if test -d "${bmd}/X11/bitmaps"; then
1684 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1686 if test -d "${bmd}/bitmaps"; then
1687 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1690 if test ${bmd_acc} != "dummyval"; then
1691 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1698 tmp_CPPFLAGS="$CPPFLAGS"
1699 tmp_CFLAGS="$CFLAGS"
1700 CPPFLAGS="$CPPFLAGS -x objective-c"
1701 CFLAGS="$CFLAGS -x objective-c"
1704 if test "${with_ns}" != no; then
1705 if test "${opsys}" = darwin; then
1707 ns_appdir=`pwd`/nextstep/Emacs.app
1708 ns_appbindir=${ns_appdir}/Contents/MacOS
1709 ns_appresdir=${ns_appdir}/Contents/Resources
1710 ns_appsrc=Cocoa/Emacs.base
1711 elif test -f $GNUSTEP_CONFIG_FILE; then
1713 ns_appdir=`pwd`/nextstep/Emacs.app
1714 ns_appbindir=${ns_appdir}
1715 ns_appresdir=${ns_appdir}/Resources
1716 ns_appsrc=GNUstep/Emacs.base
1717 dnl FIXME sourcing this several times in subshells seems inefficient.
1718 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1719 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1720 dnl I seemed to need these as well with GNUstep-startup 0.25.
1721 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1722 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1723 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1724 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1725 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1726 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1727 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1728 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1729 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1730 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1731 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1732 dnl If they had chosen to either define it or not, we could have
1733 dnl just used AC_CHECK_DECL here.
1734 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1735 emacs_cv_objc_exceptions,
1736 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1737 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1741 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1742 if test $emacs_cv_objc_exceptions = yes; then
1743 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1744 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1745 [Define if GNUstep uses ObjC exceptions.])
1746 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1750 dnl This is only used while we test the NS headers, it gets reset below.
1751 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1753 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1754 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1755 files are missing or cannot be compiled.])])
1758 if test "${NS_IMPL_COCOA}" = "yes"; then
1759 AC_MSG_CHECKING([for OSX 10.4 or newer])
1760 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1762 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1763 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1766 error "OSX 10.4 or newer required";
1770 ns_osx_have_104=yes,
1772 AC_MSG_RESULT([$ns_osx_have_104])
1774 if test $ns_osx_have_104 = no; then
1775 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1777 AC_MSG_CHECKING([for OSX 10.5 or newer])
1778 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1780 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1781 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1784 error "OSX 10.5 not found";
1788 ns_osx_have_105=yes,
1790 AC_MSG_RESULT([$ns_osx_have_105])
1791 if test $ns_osx_have_105 = yes; then
1792 macfont_file="macfont.o"
1795 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1797 ns_have_nsinteger=yes,
1798 ns_have_nsinteger=no)
1799 if test $ns_have_nsinteger = yes; then
1800 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1804 AC_SUBST(LIBS_GNUSTEP)
1806 INSTALL_ARCH_INDEP_EXTRA=install-etc
1807 ns_self_contained=no
1810 if test "${HAVE_NS}" = yes; then
1811 if test "$with_toolkit_scroll_bars" = "no"; then
1812 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1815 window_system=nextstep
1816 # set up packaging dirs
1817 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1818 ns_self_contained=yes
1819 prefix=${ns_appresdir}
1820 exec_prefix=${ns_appbindir}
1821 dnl This one isn't really used, only archlibdir is.
1822 libexecdir="\${ns_appbindir}/libexec"
1823 archlibdir="\${ns_appbindir}/libexec"
1824 etcdocdir="\${ns_appresdir}/etc"
1825 etcdir="\${ns_appresdir}/etc"
1826 dnl FIXME maybe set datarootdir instead.
1827 dnl That would also get applications, icons, man.
1828 infodir="\${ns_appresdir}/info"
1829 mandir="\${ns_appresdir}/man"
1830 lispdir="\${ns_appresdir}/lisp"
1831 INSTALL_ARCH_INDEP_EXTRA=
1834 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1836 CFLAGS="$tmp_CFLAGS"
1837 CPPFLAGS="$tmp_CPPFLAGS"
1838 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1839 AC_SUBST(ns_self_contained)
1841 AC_SUBST(NS_OBJC_OBJ)
1852 if test "${with_w32}" != no; then
1855 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1856 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1857 cannot be found.])])
1860 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1863 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1868 if test "${opsys}" = "mingw32"; then
1869 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1870 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1871 #include <windows.h>
1872 #include <usp10.h>]],
1873 [[PIMAGE_NT_HEADERS pHeader;
1874 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1875 [emacs_cv_w32api=yes
1878 AC_MSG_RESULT($emacs_cv_w32api)
1879 if test "${emacs_cv_w32api}" = "no"; then
1880 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1891 if test "${HAVE_W32}" = "yes"; then
1892 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1893 AC_CHECK_TOOL(WINDRES, [windres],
1894 [AC_MSG_ERROR([No resource compiler found.])])
1895 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1896 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1897 EMACSRES="emacs.res"
1898 case "$canonical" in
1899 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1900 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1902 if test "${opsys}" = "cygwin"; then
1903 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1904 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1905 # Tell the linker that emacs.res is an object (which we compile from
1906 # the rc file), not a linker script.
1907 W32_RES_LINK="-Wl,emacs.res"
1909 UPDATE_MANIFEST=update-game-score.exe.manifest
1910 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1911 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1912 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1913 W32_RES_LINK="\$(EMACSRES)"
1914 CLIENTRES="emacsclient.res"
1915 CLIENTW="emacsclientw\$(EXEEXT)"
1916 FIRSTFILE_OBJ=firstfile.o
1919 LIBS_ECLIENT="-lcomctl32"
1920 LIB_WSOCK32="-lwsock32"
1921 NTLIB="ntlib.$ac_objext"
1922 XARGS_LIMIT="-s 10000"
1928 AC_SUBST(EMACS_MANIFEST)
1929 AC_SUBST(UPDATE_MANIFEST)
1932 AC_SUBST(W32_RES_LINK)
1933 AC_SUBST(FIRSTFILE_OBJ)
1936 AC_SUBST(LIBS_ECLIENT)
1937 AC_SUBST(LIB_WSOCK32)
1939 AC_SUBST(XARGS_LIMIT)
1941 if test "${HAVE_W32}" = "yes"; then
1946 ## $window_system is now set to the window system we will
1949 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1950 # Too many warnings for now.
1952 nw="$nw -Wsuggest-attribute=const"
1953 nw="$nw -Wsuggest-attribute=noreturn"
1954 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1956 gl_WARN_ADD([-Wno-unused-variable])
1957 gl_WARN_ADD([-Wno-unused-but-set-variable])
1958 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1966 case "${window_system}" in
1971 case "${with_x_toolkit}" in
1972 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1973 motif ) USE_X_TOOLKIT=MOTIF ;;
1975 term_header=gtkutil.h
1976 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1977 dnl USE_X_TOOLKIT is set.
1978 USE_X_TOOLKIT=none ;;
1979 gtk2 ) with_gtk2=yes
1980 term_header=gtkutil.h
1981 USE_X_TOOLKIT=none ;;
1982 gtk3 ) with_gtk3=yes
1983 term_header=gtkutil.h
1984 USE_X_TOOLKIT=none ;;
1985 no ) USE_X_TOOLKIT=none ;;
1986 dnl If user did not say whether to use a toolkit, make this decision later:
1987 dnl use the toolkit if we have gtk, or X11R5 or newer.
1988 * ) USE_X_TOOLKIT=maybe ;;
1992 term_header=nsterm.h
1995 term_header=w32term.h
1999 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2000 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2001 if test "$HAVE_XSERVER" = true ||
2002 test -n "$DISPLAY" ||
2003 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
2004 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2005 were found. You should install the relevant development files for X
2006 and for the toolkit you want, such as Gtk+ or Motif. Also make
2007 sure you have development files for image handling, i.e.
2008 tiff, gif, jpeg, png and xpm.
2009 If you are sure you want Emacs compiled without X window support, pass
2015 # Does the opsystem file prohibit the use of the GNU malloc?
2016 # Assume not, until told otherwise.
2020 [whether malloc is Doug Lea style],
2021 [emacs_cv_var_doug_lea_malloc],
2022 [emacs_cv_var_doug_lea_malloc=no
2023 dnl Hooks do not work with address sanitization.
2024 if test "$emacs_cv_sanitize_address" != yes; then
2027 [[#include <malloc.h>
2028 static void hook (void) {}]],
2029 [[malloc_set_state (malloc_get_state ());
2030 __after_morecore_hook = hook;
2031 __malloc_initialize_hook = hook;]])],
2032 [emacs_cv_var_doug_lea_malloc=yes])])
2034 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2036 system_malloc=$emacs_cv_sanitize_address
2041 ## darwin ld insists on the use of malloc routines in the System framework.
2042 darwin|mingw32|sol2-10) system_malloc=yes ;;
2043 cygwin) hybrid_malloc=yes;;
2047 if test "${system_malloc}" = "yes"; then
2048 AC_DEFINE([SYSTEM_MALLOC], 1,
2049 [Define to 1 to use the system memory allocator, even if it is not
2053 (The GNU allocators don't work with this system configuration.)"
2055 elif test "$hybrid_malloc" = yes; then
2056 AC_DEFINE(HYBRID_MALLOC, 1,
2057 [Define to use gmalloc before dumping and the system malloc after.])
2059 GNU_MALLOC_reason="only before dumping"
2060 GMALLOC_OBJ=gmalloc.o
2063 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2064 VMLIMIT_OBJ=vm-limit.o
2066 AC_CHECK_HEADERS([sys/vlimit.h])
2067 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2070 [[extern char data_start[]; char ch;]],
2071 [[return data_start < &ch;]])],
2072 [emacs_cv_data_start=yes],
2073 [emacs_cv_data_start=no])])
2074 if test $emacs_cv_data_start = yes; then
2075 AC_DEFINE([HAVE_DATA_START], 1,
2076 [Define to 1 if data_start is the address of the start
2077 of the main data segment.])
2080 AC_SUBST(GMALLOC_OBJ)
2081 AC_SUBST(VMLIMIT_OBJ)
2083 if test "$doug_lea_malloc" = "yes" ; then
2084 if test "$GNU_MALLOC" = yes ; then
2086 (Using Doug Lea's new malloc from the GNU C Library.)"
2088 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2089 [Define to 1 if the system memory allocator is Doug Lea style,
2090 with malloc hooks and malloc_set_state.])
2092 ## Use mmap directly for allocating larger buffers.
2093 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2094 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2095 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2097 mingw32|gnu*) REL_ALLOC=no ;;
2101 if test x"${REL_ALLOC}" = x; then
2102 REL_ALLOC=${GNU_MALLOC}
2105 use_mmap_for_buffers=no
2107 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2111 if test $use_mmap_for_buffers = yes; then
2112 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2116 LIBS="$LIBS_SYSTEM $LIBS"
2118 dnl FIXME replace main with a function we actually want from this library.
2119 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2121 dnl Check for the POSIX thread library.
2123 if test "$opsys" != "mingw32"; then
2124 AC_CHECK_HEADERS_ONCE(pthread.h)
2125 if test "$ac_cv_header_pthread_h"; then
2126 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2127 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2128 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2129 if test "$GMALLOC_OBJ" = gmalloc.o; then
2130 emacs_pthread_function=pthread_atfork
2132 emacs_pthread_function=pthread_kill
2135 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2136 [AC_DEFINE([HAVE_PTHREAD], [1],
2137 [Define to 1 if you have pthread (-lpthread).])
2138 # Some systems optimize for single-threaded programs by default, and
2139 # need special flags to disable these optimizations. For example, the
2140 # definition of 'errno' in <errno.h>.
2143 AC_DEFINE([_REENTRANT], 1,
2144 [Define to 1 if your system requires this in multithreaded code.]);;
2146 AC_DEFINE([_THREAD_SAFE], 1,
2147 [Define to 1 if your system requires this in multithreaded code.]);;
2149 if test "X$LIBS" != "X$OLD_LIBS"; then
2150 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2154 AC_SUBST([LIB_PTHREAD])
2157 dnl Check for need for bigtoc support on IBM AIX
2161 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2163 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2164 *) gdb_cv_bigtoc=-bbigtoc ;;
2167 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2168 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2173 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2174 # is for the tests that follow. We set them back later on.
2176 REAL_CFLAGS="$CFLAGS"
2177 REAL_CPPFLAGS="$CPPFLAGS"
2180 if test "${HAVE_X11}" = "yes"; then
2181 DEFS="$C_SWITCH_X_SITE $DEFS"
2182 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2184 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2185 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2187 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2188 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2189 # but it's more convenient here to set LD_RUN_PATH since this
2190 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2191 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2192 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2196 if test "${opsys}" = "gnu-linux"; then
2197 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2198 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2199 [[XOpenDisplay ("foo");]])],
2200 [xgnu_linux_first_failure=no],
2201 [xgnu_linux_first_failure=yes])
2202 if test "${xgnu_linux_first_failure}" = "yes"; then
2203 OLD_CPPFLAGS="$CPPFLAGS"
2205 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2206 LIBS="$LIBS -b i486-linuxaout"
2207 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2208 [[XOpenDisplay ("foo");]])],
2209 [xgnu_linux_second_failure=no],
2210 [xgnu_linux_second_failure=yes])
2211 if test "${xgnu_linux_second_failure}" = "yes"; then
2212 # If we get the same failure with -b, there is no use adding -b.
2213 # So leave it out. This plays safe.
2216 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2217 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2220 CPPFLAGS=$OLD_CPPFLAGS
2227 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2228 # header files included from there.
2229 AC_MSG_CHECKING(for Xkb)
2230 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2231 #include <X11/XKBlib.h>]],
2232 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2233 emacs_xkb=yes, emacs_xkb=no)
2234 AC_MSG_RESULT($emacs_xkb)
2235 if test $emacs_xkb = yes; then
2236 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2239 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2240 XScreenNumberOfScreen)
2243 if test "${window_system}" = "x11"; then
2244 AC_MSG_CHECKING(X11 version 6)
2245 AC_CACHE_VAL(emacs_cv_x11_version_6,
2246 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2247 [[#if XlibSpecificationRelease < 6
2250 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2251 if test $emacs_cv_x11_version_6 = yes; then
2252 AC_MSG_RESULT(6 or newer)
2253 AC_DEFINE(HAVE_X11R6, 1,
2254 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2255 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2256 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2260 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2261 [Define if you have usable X11R6-style XIM support.])
2265 AC_MSG_RESULT(before 6)
2270 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2272 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2273 if test "${with_rsvg}" != "no"; then
2274 RSVG_REQUIRED=2.11.0
2275 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2277 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2278 AC_SUBST(RSVG_CFLAGS)
2281 if test $HAVE_RSVG = yes; then
2282 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2283 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2284 # Windows loads librsvg dynamically
2285 if test "${opsys}" = "mingw32"; then
2293 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2294 if test "${with_imagemagick}" != "no"; then
2295 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2296 ## 6.8.2 makes Emacs crash; see Bug#13867.
2297 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2298 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2299 AC_SUBST(IMAGEMAGICK_CFLAGS)
2300 AC_SUBST(IMAGEMAGICK_LIBS)
2302 if test $HAVE_IMAGEMAGICK = yes; then
2303 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2306 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2307 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2308 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2318 gtk_term_header=$term_header
2321 if test "${opsys}" != "mingw32"; then
2322 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2325 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2327 dnl Checks for libraries.
2328 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2329 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2330 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2331 AC_MSG_ERROR($GTK_PKG_ERRORS)
2333 if test "$pkg_check_gtk" = "yes"; then
2334 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2335 GTK_OBJ=emacsgtkfixed.o
2336 gtk_term_header=gtkutil.h
2337 USE_GTK_TOOLKIT="GTK3"
2338 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2339 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2340 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2341 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2342 [Define to 1 to disable Glib deprecation warnings.])
2346 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2350 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2353 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2355 dnl Checks for libraries.
2356 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2357 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2358 if test "$pkg_check_gtk" = "no" &&
2359 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2361 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2363 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2370 if test x"$pkg_check_gtk" = xyes; then
2373 CFLAGS="$CFLAGS $GTK_CFLAGS"
2374 LIBS="$GTK_LIBS $LIBS"
2375 dnl Try to compile a simple GTK program.
2376 AC_MSG_CHECKING([whether GTK compiles])
2380 [[/* Check the Gtk and Glib APIs. */
2381 #include <gtk/gtk.h>
2382 #include <glib-object.h>
2384 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2388 GtkSettings *gs = 0;
2389 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2390 strict C prohibits this. Use gtk_main_iteration to test that the
2391 libraries are there. */
2392 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2393 0, 0, 0, G_CALLBACK (callback), 0))
2394 gtk_main_iteration ();
2397 AC_MSG_RESULT([$GTK_COMPILES])
2398 if test "${GTK_COMPILES}" != "yes"; then
2400 if test "$USE_X_TOOLKIT" != "maybe"; then
2401 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2404 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2406 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2407 GTK_OBJ="gtkutil.o $GTK_OBJ"
2408 term_header=$gtk_term_header
2410 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2413 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2414 closing open displays. This is no problem if you just use
2415 one display, but if you use more than one and close one of them
2425 if test "${HAVE_GTK}" = "yes"; then
2427 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2428 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2429 if test "$with_toolkit_scroll_bars" != no; then
2430 with_toolkit_scroll_bars=yes
2433 dnl Check if we have the old file selection dialog declared and
2434 dnl in the link library. In 2.x it may be in the library,
2435 dnl but not declared if deprecated featured has been selected out.
2436 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2437 HAVE_GTK_FILE_SELECTION=no
2438 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2439 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2440 #include <gtk/gtk.h>])
2441 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2442 AC_CHECK_FUNCS(gtk_file_selection_new)
2445 dnl Same as above for gtk_handle_box.
2446 HAVE_GTK_HANDLE_BOX=no
2447 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2448 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2449 #include <gtk/gtk.h>])
2450 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2451 AC_CHECK_FUNCS(gtk_handle_box_new)
2454 dnl Same as above for gtk_tearoff_menu_item.
2455 HAVE_GTK_TEAROFF_MENU_ITEM=no
2456 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2457 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2458 #include <gtk/gtk.h>])
2459 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2460 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2463 dnl Check for functions introduced in 2.14 and later.
2464 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2465 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2466 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2467 gtk_orientable_set_orientation \
2468 gtk_window_set_has_resize_grip)
2470 term_header=gtkutil.h
2476 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2477 dnl other platforms.
2480 if test "${with_dbus}" = "yes"; then
2481 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2482 if test "$HAVE_DBUS" = yes; then
2483 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2484 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2485 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2488 LIBS="$LIBS $DBUS_LIBS"
2489 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2490 dbus_type_is_valid \
2491 dbus_validate_bus_name \
2492 dbus_validate_path \
2493 dbus_validate_interface \
2494 dbus_validate_member)
2499 AC_SUBST(DBUS_CFLAGS)
2503 dnl GSettings has been tested under GNU/Linux only.
2505 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2506 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2507 if test "$HAVE_GSETTINGS" = "yes"; then
2509 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2511 LIBS="$LIBS $GSETTINGS_LIBS"
2512 AC_MSG_CHECKING([whether GSettings is in gio])
2515 [[/* Check that gsettings really is present. */
2516 #include <glib-object.h>
2517 #include <gio/gio.h>
2520 GSettings *settings;
2521 GVariant *val = g_settings_get_value (settings, "");
2523 [], HAVE_GSETTINGS=no)
2524 AC_MSG_RESULT([$HAVE_GSETTINGS])
2526 if test "$HAVE_GSETTINGS" = "yes"; then
2527 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2528 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2529 SETTINGS_LIBS="$GSETTINGS_LIBS"
2536 dnl GConf has been tested under GNU/Linux only.
2537 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2539 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2540 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2541 if test "$HAVE_GCONF" = yes; then
2542 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2543 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2544 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2545 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2549 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2550 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2551 if test "$HAVE_GOBJECT" = "yes"; then
2552 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2553 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2555 SAVE_CFLAGS="$CFLAGS"
2557 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2558 LIBS="$SETTINGS_LIBS $LIBS"
2559 CFLAGS="$SAVE_CFLAGS"
2562 AC_SUBST(SETTINGS_CFLAGS)
2563 AC_SUBST(SETTINGS_LIBS)
2566 dnl SELinux is available for GNU/Linux only.
2569 if test "${with_selinux}" = "yes"; then
2570 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2571 if test "$HAVE_LIBSELINUX" = yes; then
2572 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2573 LIBSELINUX_LIBS=-lselinux
2576 AC_SUBST(LIBSELINUX_LIBS)
2580 if test "${with_gnutls}" = "yes" ; then
2581 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2582 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2583 if test "${HAVE_GNUTLS3}" = "yes"; then
2584 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2587 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2588 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2590 if test "${HAVE_GNUTLS}" = "yes"; then
2591 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2594 # Windows loads GnuTLS dynamically
2595 if test "${opsys}" = "mingw32"; then
2600 AC_SUBST(LIBGNUTLS_LIBS)
2601 AC_SUBST(LIBGNUTLS_CFLAGS)
2606 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2607 dnl a particular library. This doesn't make much sense?
2608 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2609 with_file_notification=no
2612 dnl MS Windows native file monitor is available for mingw32 only.
2613 case $with_file_notification,$opsys in
2614 w32,* | yes,mingw32)
2615 AC_CHECK_HEADER(windows.h)
2616 if test "$ac_cv_header_windows_h" = yes ; then
2617 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2618 NOTIFY_OBJ=w32notify.o
2619 NOTIFY_SUMMARY="yes (w32)"
2623 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2624 dnl has been added in glib 2.24. It has been tested under
2625 dnl GNU/Linux only. We take precedence over inotify, but this makes
2626 dnl only sense when glib has been compiled with inotify support. How
2628 case $with_file_notification,$NOTIFY_OBJ in
2630 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2631 if test "$HAVE_GFILENOTIFY" = "yes"; then
2632 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2633 NOTIFY_OBJ=gfilenotify.o
2634 NOTIFY_SUMMARY="yes -lgio (gfile)"
2638 dnl inotify is only available on GNU/Linux.
2639 case $with_file_notification,$NOTIFY_OBJ in
2641 AC_CHECK_HEADER(sys/inotify.h)
2642 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2643 AC_CHECK_FUNC(inotify_init1)
2644 if test "$ac_cv_func_inotify_init1" = yes; then
2645 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2646 NOTIFY_OBJ=inotify.o
2647 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2652 case $with_file_notification,$NOTIFY_OBJ in
2653 yes,* | no,* | *,?*) ;;
2654 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2657 if test -n "$NOTIFY_OBJ"; then
2658 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2660 AC_SUBST(NOTIFY_OBJ)
2661 AC_SUBST(GFILENOTIFY_CFLAGS)
2662 AC_SUBST(GFILENOTIFY_LIBS)
2664 dnl Do not put whitespace before the #include statements below.
2665 dnl Older compilers (eg sunos4 cc) choke on it.
2668 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2669 if test "$with_xaw3d" != no; then
2670 AC_CACHE_VAL(emacs_cv_xaw3d,
2671 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2672 #include <X11/Intrinsic.h>
2673 #include <X11/Xaw3d/Simple.h>]],
2675 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2676 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2677 emacs_cv_xaw3d=no)])
2681 if test $emacs_cv_xaw3d = yes; then
2682 AC_MSG_CHECKING(for xaw3d)
2683 AC_MSG_RESULT([yes; using Lucid toolkit])
2687 AC_DEFINE(HAVE_XAW3D, 1,
2688 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2690 AC_MSG_CHECKING(for xaw3d)
2692 AC_MSG_CHECKING(for libXaw)
2693 AC_CACHE_VAL(emacs_cv_xaw,
2694 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2695 #include <X11/Intrinsic.h>
2696 #include <X11/Xaw/Simple.h>]],
2700 if test $emacs_cv_xaw = yes; then
2701 AC_MSG_RESULT([yes; using Lucid toolkit])
2704 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2705 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2707 AC_MSG_ERROR([No X toolkit could be found.
2708 If you are sure you want Emacs compiled without an X toolkit, pass
2710 to configure. Otherwise, install the development libraries for the toolkit
2711 that you want to use (e.g. Gtk+) and re-run configure.])
2716 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2720 if test "${USE_X_TOOLKIT}" != "none"; then
2721 AC_MSG_CHECKING(X11 toolkit version)
2722 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2723 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2724 [[#if XtSpecificationRelease < 6
2727 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2728 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2729 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2730 AC_MSG_RESULT(6 or newer)
2731 AC_DEFINE(HAVE_X11XTR6, 1,
2732 [Define to 1 if you have the X11R6 or newer version of Xt.])
2733 LIBXTR6="-lSM -lICE"
2735 ## Use libw.a along with X11R6 Xt.
2736 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2739 AC_MSG_RESULT(before 6)
2742 dnl If using toolkit, check whether libXmu.a exists.
2743 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2745 if test x$HAVE_X11XTR6 = xyes; then
2746 OTHERLIBS='-lXt -lSM -lICE'
2750 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2751 if test "X$LIBS" != "X$OLDLIBS"; then
2752 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2755 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2761 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2762 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2763 if test -d /usr/include/openmotif; then
2764 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2765 emacs_cv_openmotif=yes
2766 case "$canonical" in
2767 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2768 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2771 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2774 emacs_cv_openmotif=no
2776 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2777 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2778 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2781 Motif version prior to 2.1.
2783 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2784 if test $emacs_cv_motif_version_2_1 = yes; then
2785 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2786 if test x$emacs_cv_openmotif = xyes; then
2787 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2790 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2791 # We put this in CFLAGS temporarily to precede other -I options
2792 # that might be in CFLAGS temporarily.
2793 # We put this in CPPFLAGS where it precedes the other -I options.
2794 OLD_CPPFLAGS=$CPPFLAGS
2796 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2797 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2798 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2800 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2801 if test $emacs_cv_lesstif = yes; then
2802 # Make sure this -I option remains in CPPFLAGS after it is set
2803 # back to REAL_CPPFLAGS.
2804 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2805 # have those other -I options anyway. Ultimately, having this
2806 # directory ultimately in CPPFLAGS will be enough.
2807 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2808 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2811 CPPFLAGS=$OLD_CPPFLAGS
2814 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2815 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2818 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2819 dnl using Motif or Xaw3d is available, and unless
2820 dnl --with-toolkit-scroll-bars=no was specified.
2822 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2823 [Define to 1 if we should use toolkit scroll bars.])dnl
2824 USE_TOOLKIT_SCROLL_BARS=no
2825 if test "${with_toolkit_scroll_bars}" != "no"; then
2826 if test "${USE_X_TOOLKIT}" != "none"; then
2827 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2828 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2830 USE_TOOLKIT_SCROLL_BARS=yes
2831 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2832 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2833 USE_TOOLKIT_SCROLL_BARS=yes
2835 elif test "${HAVE_GTK}" = "yes"; then
2836 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2837 USE_TOOLKIT_SCROLL_BARS=yes
2838 elif test "${HAVE_NS}" = "yes"; then
2839 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2840 USE_TOOLKIT_SCROLL_BARS=yes
2841 elif test "${HAVE_W32}" = "yes"; then
2842 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2843 USE_TOOLKIT_SCROLL_BARS=yes
2847 dnl See if XIM is available.
2848 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2849 #include <X11/Xlib.h>
2850 #include <X11/Xresource.h>]],
2851 [[XIMProc callback;]])],
2853 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2856 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2858 if test "${with_xim}" != "no"; then
2859 AC_DEFINE(USE_XIM, 1,
2860 [Define to 1 if we should use XIM, if it is available.])
2864 if test "${HAVE_XIM}" != "no"; then
2866 if test "$GCC" = yes; then
2867 CFLAGS="$CFLAGS --pedantic-errors"
2869 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2870 #include <X11/Xlib.h>
2871 #include <X11/Xresource.h>]],
2877 XPointer *client_data;
2879 /* If we're not using GCC, it's probably not XFree86, and this is
2880 probably right, but we can't use something like --pedantic-errors. */
2881 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2882 char*, XIMProc, XPointer*);
2884 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2886 [emacs_cv_arg6_star=yes])
2887 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2888 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2889 either XPointer or XPointer*.])dnl
2890 if test "$emacs_cv_arg6_star" = yes; then
2891 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2893 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2898 ### Start of font-backend (under any platform) section.
2899 # (nothing here yet -- this is a placeholder)
2900 ### End of font-backend (under any platform) section.
2902 ### Start of font-backend (under X11) section.
2903 if test "${HAVE_X11}" = "yes"; then
2904 ## Use -lXft if available, unless `--with-xft=no'.
2906 if test "x${with_x}" = "xno"; then
2910 if test "$with_xft" != no; then
2911 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2912 with_xft=$HAVE_FONTCONFIG
2915 if test "x${with_xft}" != "xno"; then
2917 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2918 ## Because xftfont.c uses XRenderQueryExtension, we also
2919 ## need to link to -lXrender.
2921 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2922 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2923 OLD_CPPFLAGS="$CPPFLAGS"
2924 OLD_CFLAGS="$CFLAGS"
2926 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2927 CFLAGS="$CFLAGS $XFT_CFLAGS"
2928 XFT_LIBS="-lXrender $XFT_LIBS"
2929 LIBS="$XFT_LIBS $LIBS"
2930 AC_CHECK_HEADER(X11/Xft/Xft.h,
2931 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2932 [[#include <X11/X.h>]])
2934 if test "${HAVE_XFT}" = "yes"; then
2935 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2937 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2938 fi # "${HAVE_XFT}" = "yes"
2939 CPPFLAGS=$OLD_CPPFLAGS
2942 fi # "$HAVE_XFT" != no
2943 fi # "x${with_xft}" != "xno"
2945 ## We used to allow building with FreeType and without Xft.
2946 ## However, the ftx font backend driver is not in good shape.
2947 if test "$HAVE_XFT" != "yes"; then
2948 dnl For the "Does Emacs use" message at the end.
2952 dnl Strict linkers fail with
2953 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2954 dnl if -lfreetype is not specified.
2955 dnl The following is needed to set FREETYPE_LIBS.
2956 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2958 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2962 if test "${HAVE_FREETYPE}" = "yes"; then
2963 AC_DEFINE(HAVE_FREETYPE, 1,
2964 [Define to 1 if using the freetype and fontconfig libraries.])
2965 if test "${with_libotf}" != "no"; then
2966 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2967 if test "$HAVE_LIBOTF" = "yes"; then
2968 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2969 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2970 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2971 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2972 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2973 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2974 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2978 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2979 dnl Does the new font backend require it, or can it work without it?
2983 if test "${HAVE_LIBOTF}" = yes; then
2984 if test "${with_m17n_flt}" != "no"; then
2985 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2986 if test "$HAVE_M17N_FLT" = "yes"; then
2987 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2998 ### End of font-backend (under X11) section.
3000 AC_SUBST(FREETYPE_CFLAGS)
3001 AC_SUBST(FREETYPE_LIBS)
3002 AC_SUBST(FONTCONFIG_CFLAGS)
3003 AC_SUBST(FONTCONFIG_LIBS)
3004 AC_SUBST(LIBOTF_CFLAGS)
3005 AC_SUBST(LIBOTF_LIBS)
3006 AC_SUBST(M17N_FLT_CFLAGS)
3007 AC_SUBST(M17N_FLT_LIBS)
3009 ### Use -lXpm if available, unless `--with-xpm=no'.
3010 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3011 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3012 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3013 ### LDFLAGS) accordingly.
3016 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3017 if test "${with_xpm}" != "no"; then
3018 SAVE_CPPFLAGS="$CPPFLAGS"
3019 SAVE_LDFLAGS="$LDFLAGS"
3020 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3021 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3022 AC_CHECK_HEADER(X11/xpm.h,
3023 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3024 if test "${HAVE_XPM}" = "yes"; then
3025 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3026 AC_EGREP_CPP(no_return_alloc_pixels,
3027 [#include "X11/xpm.h"
3028 #ifndef XpmReturnAllocPixels
3029 no_return_alloc_pixels
3031 ], HAVE_XPM=no, HAVE_XPM=yes)
3033 if test "${HAVE_XPM}" = "yes"; then
3034 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3038 CPPFLAGS="$SAVE_CPPFLAGS"
3039 LDFLAGS="$SAVE_LDFLAGS"
3044 if test "${HAVE_XPM}" = "yes"; then
3045 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3050 if test "${HAVE_X11}" = "yes"; then
3051 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3052 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3054 if test "${with_xpm}" != "no"; then
3055 AC_CHECK_HEADER(X11/xpm.h,
3056 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3057 if test "${HAVE_XPM}" = "yes"; then
3058 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3059 AC_EGREP_CPP(no_return_alloc_pixels,
3060 [#include "X11/xpm.h"
3061 #ifndef XpmReturnAllocPixels
3062 no_return_alloc_pixels
3064 ], HAVE_XPM=no, HAVE_XPM=yes)
3066 if test "${HAVE_XPM}" = "yes"; then
3074 if test "${HAVE_XPM}" = "yes"; then
3075 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3077 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3078 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3083 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3084 ### slightly different requirements wrt image libraries (it doesn't
3085 ### use -lXpm because it loads the xpm shared library dynamically at
3087 if test "${opsys}" = "mingw32"; then
3088 if test "${with_xpm}" != "no"; then
3089 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3093 if test "${HAVE_XPM}" = "yes"; then
3094 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3100 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3101 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3104 if test "${opsys}" = "mingw32"; then
3105 if test "${with_jpeg}" != "no"; then
3106 dnl Checking for jpeglib.h can lose because of a redefinition of
3108 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3110 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3111 if test "${HAVE_JPEG}" = "yes"; then
3112 AC_DEFINE(HAVE_JPEG)
3113 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3114 [#include <jpeglib.h>
3115 version=JPEG_LIB_VERSION
3117 [AC_DEFINE(HAVE_JPEG)],
3118 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3121 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3122 if test "${with_jpeg}" != "no"; then
3123 dnl Checking for jpeglib.h can lose because of a redefinition of
3125 AC_CHECK_HEADER(jerror.h,
3126 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3129 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3130 if test "${HAVE_JPEG}" = "yes"; then
3131 AC_DEFINE(HAVE_JPEG)
3132 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3133 [#include <jpeglib.h>
3134 version=JPEG_LIB_VERSION
3136 [AC_DEFINE(HAVE_JPEG)],
3137 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3140 if test "${HAVE_JPEG}" = "yes"; then
3148 if test "${with_zlib}" != "no"; then
3150 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3152 case $ac_cv_search_inflateEnd in
3153 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3156 if test "${HAVE_ZLIB}" = "yes"; then
3157 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3158 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3159 if test "${opsys}" = "mingw32"; then
3165 ### Use -lpng if available, unless `--with-png=no'.
3169 if test "${NS_IMPL_COCOA}" = yes; then
3171 elif test "${with_png}" != no; then
3172 # mingw32 loads the library dynamically.
3173 if test "$opsys" = mingw32; then
3174 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3175 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3176 AC_MSG_CHECKING([for png])
3177 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3178 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3179 # libpng-config does not work; configure by hand.
3180 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3181 # in /usr/include/libpng.
3182 if test -r /usr/include/libpng/png.h &&
3183 test ! -r /usr/include/png.h; then
3184 png_cflags=-I/usr/include/libpng
3192 CFLAGS="$CFLAGS $png_cflags"
3193 LIBS="$png_libs -lz -lm $LIBS"
3195 [AC_LANG_PROGRAM([[#include <png.h>]],
3196 [[return !png_get_channels (0, 0);]])],
3198 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3200 # $LIBPNG requires explicit -lz in some cases.
3201 # We don't know what those cases are, exactly, so play it safe and
3202 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3203 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3204 LIBPNG="$LIBPNG -lz"
3208 AC_MSG_RESULT([$HAVE_PNG])
3211 if test $HAVE_PNG = yes; then
3212 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3215 CFLAGS="$CFLAGS $PNG_CFLAGS"
3216 AC_CHECK_DECL([png_longjmp],
3218 [AC_DEFINE([PNG_DEPSTRUCT], [],
3219 [Define to empty to suppress deprecation warnings when building
3220 with --enable-gcc-warnings and with libpng versions before 1.5,
3221 which lack png_longjmp.])],
3227 AC_SUBST(PNG_CFLAGS)
3229 ### Use -ltiff if available, unless `--with-tiff=no'.
3230 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3233 if test "${opsys}" = "mingw32"; then
3234 if test "${with_tiff}" != "no"; then
3235 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3237 if test "${HAVE_TIFF}" = "yes"; then
3238 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3240 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3241 if test "${with_tiff}" != "no"; then
3242 AC_CHECK_HEADER(tiffio.h,
3244 # At least one tiff package requires the jpeg library.
3245 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3246 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3249 if test "${HAVE_TIFF}" = "yes"; then
3250 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3251 dnl FIXME -lz -lm, as per libpng?
3257 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3258 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3261 if test "${opsys}" = "mingw32"; then
3262 if test "${with_gif}" != "no"; then
3263 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3265 if test "${HAVE_GIF}" = "yes"; then
3266 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3268 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3269 || test "${HAVE_W32}" = "yes"; then
3270 AC_CHECK_HEADER(gif_lib.h,
3271 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3272 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3273 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3274 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3276 if test "$HAVE_GIF" = yes; then
3278 elif test "$HAVE_GIF" = maybe; then
3279 # If gif_lib.h but no libgif, try libungif.
3280 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3281 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3284 if test "${HAVE_GIF}" = "yes"; then
3285 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3290 dnl Check for required libraries.
3291 if test "${HAVE_X11}" = "yes"; then
3294 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3295 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3296 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3297 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3298 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3299 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3300 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3301 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3302 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3303 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3305 if test "X${MISSING}" != X; then
3306 AC_MSG_ERROR([The following required libraries were not found:
3308 Maybe some development libraries/packages are missing?
3309 If you don't want to link with them give
3311 as options to configure])
3315 ### Use -lgpm if available, unless `--with-gpm=no'.
3318 if test "${with_gpm}" != "no"; then
3319 AC_CHECK_HEADER(gpm.h,
3320 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3322 if test "${HAVE_GPM}" = "yes"; then
3323 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3329 dnl Check for malloc/malloc.h on darwin
3330 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3333 ### Use NeXTstep API to implement GUI.
3334 if test "${HAVE_NS}" = "yes"; then
3335 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3336 if test "${NS_IMPL_COCOA}" = "yes"; then
3337 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3339 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3340 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3341 # See also .m.o rule in Makefile.in */
3342 # FIXME: are all these flags really needed? Document here why. */
3343 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3344 ## Extra CFLAGS applied to src/*.m files.
3345 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3350 ### Use session management (-lSM -lICE) if available
3353 if test "${HAVE_X11}" = "yes"; then
3354 AC_CHECK_HEADER(X11/SM/SMlib.h,
3355 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3357 if test "${HAVE_X_SM}" = "yes"; then
3358 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3364 ### Use XRandr (-lXrandr) if available
3366 if test "${HAVE_X11}" = "yes"; then
3367 XRANDR_REQUIRED=1.2.2
3368 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3369 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3370 if test $HAVE_XRANDR = no; then
3371 # Test old way in case pkg-config doesn't have it (older machines).
3372 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3373 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3374 if test $HAVE_XRANDR = yes; then
3375 XRANDR_LIBS=-lXrandr
3378 if test $HAVE_XRANDR = yes; then
3379 SAVE_CFLAGS="$CFLAGS"
3381 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3382 LIBS="$XRANDR_LIBS $LIBS"
3383 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3384 CFLAGS="$SAVE_CFLAGS"
3387 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3390 AC_SUBST(XRANDR_CFLAGS)
3391 AC_SUBST(XRANDR_LIBS)
3393 ### Use Xinerama (-lXinerama) if available
3395 if test "${HAVE_X11}" = "yes"; then
3396 XINERAMA_REQUIRED=1.0.2
3397 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3398 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3399 if test $HAVE_XINERAMA = no; then
3400 # Test old way in case pkg-config doesn't have it (older machines).
3401 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3402 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3403 if test $HAVE_XINERAMA = yes; then
3404 XINERAMA_LIBS=-lXinerama
3407 if test $HAVE_XINERAMA = yes; then
3408 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3411 AC_SUBST(XINERAMA_CFLAGS)
3412 AC_SUBST(XINERAMA_LIBS)
3414 ### Use Xfixes (-lXfixes) if available
3416 if test "${HAVE_X11}" = "yes"; then
3417 XFIXES_REQUIRED=4.0.0
3418 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3419 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3420 if test $HAVE_XFIXES = no; then
3421 # Test old way in case pkg-config doesn't have it (older machines).
3422 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3423 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3424 if test $HAVE_XFIXES = yes; then
3425 XFIXES_LIBS=-lXfixes
3428 if test $HAVE_XFIXES = yes; then
3429 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3432 AC_SUBST(XFIXES_CFLAGS)
3433 AC_SUBST(XFIXES_LIBS)
3435 ### Use libxml (-lxml2) if available
3436 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3438 if test "${with_xml2}" != "no"; then
3439 ### I'm not sure what the version number should be, so I just guessed.
3440 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3441 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3442 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3443 SAVE_CPPFLAGS="$CPPFLAGS"
3444 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3445 AC_CHECK_HEADER(libxml/HTMLparser.h,
3446 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3447 [#include <libxml/HTMLparser.h>])])
3448 CPPFLAGS="$SAVE_CPPFLAGS"
3449 if test "${HAVE_LIBXML2}" = "yes"; then
3450 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3451 LIBXML2_LIBS="-lxml2"
3454 if test "${HAVE_LIBXML2}" = "yes"; then
3455 if test "${opsys}" != "mingw32"; then
3456 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3461 if test "${HAVE_LIBXML2}" = "yes"; then
3462 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3469 AC_SUBST(LIBXML2_LIBS)
3470 AC_SUBST(LIBXML2_CFLAGS)
3472 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3473 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3474 if test "${opsys}" = "mingw32"; then
3475 emacs_cv_netdb_declares_h_errno=yes
3477 AC_CACHE_CHECK(whether netdb declares h_errno,
3478 emacs_cv_netdb_declares_h_errno,
3479 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3480 [[return h_errno;]])],
3481 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3482 if test $emacs_cv_netdb_declares_h_errno = yes; then
3483 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3486 # Check for mail-locking functions in a "mail" library. Probably this should
3487 # have the same check as for liblockfile below.
3488 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3489 if test $have_mail = yes; then
3491 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3494 LIBS="$LIBS_MAIL $LIBS"
3495 AC_CHECK_FUNCS(touchlock)
3500 dnl Debian, at least:
3501 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3502 if test $have_lockfile = yes; then
3503 LIBS_MAIL=-llockfile
3504 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3506 # If we have the shared liblockfile, assume we must use it for mail
3507 # locking (e.g. Debian). If we couldn't link against liblockfile
3508 # (no liblockfile.a installed), ensure that we don't need to.
3509 dnl This works for files generally, not just executables.
3510 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3511 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3512 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3513 if test $ac_cv_prog_liblockfile = yes; then
3514 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3515 This probably means that movemail could lose mail.
3516 There may be a `development' package to install containing liblockfile.])
3519 AC_CHECK_HEADERS_ONCE(maillock.h)
3522 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3523 ## interlock access to the mail spool. The alternative is a lock file named
3524 ## /usr/spool/mail/$USER.lock.
3527 aix4-2) mail_lock="lockf" ;;
3529 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3531 ## On GNU/Linux systems, both methods are used by various mail programs.
3532 ## I assume most people are using newer mailers that have heard of flock.
3533 ## Change this if you need to.
3534 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3535 ## configure gets the right answers, and that means *NOT* using flock.
3536 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3537 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3538 ## Debian maintainer hasn't provided a clean fix for Emacs.
3539 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3540 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3541 ## correct logic. -- fx
3542 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3543 ## liblockfile is a Free Software replacement for libmail, used on
3544 ## Debian systems and elsewhere. -rfr.
3547 if test $have_mail = yes || test $have_lockfile = yes; then
3548 test $ac_cv_header_maillock_h = yes && mail_lock=no
3553 mail_lock="none-needed" ;;
3557 case "$mail_lock" in
3558 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3560 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3564 *) BLESSMAIL_TARGET="need-blessmail" ;;
3566 AC_SUBST(BLESSMAIL_TARGET)
3569 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3570 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3571 getrusage get_current_dir_name \
3572 lrand48 random rint \
3573 select getpagesize setlocale newlocale \
3574 getrlimit setrlimit shutdown getaddrinfo \
3575 pthread_sigmask strsignal setitimer \
3576 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3578 getpwent endpwent getgrent endgrent \
3579 cfmakeraw cfsetspeed copysign __executable_start log2)
3582 dnl No need to check for aligned_alloc and posix_memalign if using
3583 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3584 dnl Don't use these functions on Darwin as they are incompatible with
3586 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3587 && test "$opsys" != darwin; then
3588 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3591 dnl Cannot use AC_CHECK_FUNCS
3592 AC_CACHE_CHECK([for __builtin_unwind_init],
3593 emacs_cv_func___builtin_unwind_init,
3594 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3595 emacs_cv_func___builtin_unwind_init=yes,
3596 emacs_cv_func___builtin_unwind_init=no)])
3597 if test $emacs_cv_func___builtin_unwind_init = yes; then
3598 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3599 [Define to 1 if you have the `__builtin_unwind_init' function.])
3602 AC_CHECK_HEADERS_ONCE(sys/un.h)
3607 AC_CHECK_FUNCS(grantpt)
3609 # PTY-related GNU extensions.
3610 AC_CHECK_FUNCS(getpt posix_openpt)
3612 # Check this now, so that we will NOT find the above functions in ncurses.
3613 # That is because we have not set up to link ncurses in lib-src.
3614 # It's better to believe a function is not available
3615 # than to expect to find it in ncurses.
3616 # Also we need tputs and friends to be able to build at all.
3617 AC_MSG_CHECKING([for library containing tputs])
3618 # Run a test program that contains a call to tputs, a call that is
3619 # never executed. This tests whether a pre-'main' dynamic linker
3620 # works with the library. It's too much trouble to actually call
3621 # tputs in the test program, due to portability hassles. When
3622 # cross-compiling, assume the test program will run if it links.
3623 AC_DEFUN([tputs_link_source], [
3625 [[extern void tputs (const char *, int, int (*)(int));
3626 int main (int argc, char **argv)
3629 tputs (argv[0], 0, 0);
3633 if test "${opsys}" = "mingw32"; then
3636 # Maybe curses should be tried earlier?
3637 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3638 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3640 if test -z "$tputs_library"; then
3644 LIBS_TERMCAP=-l$tputs_library
3646 LIBS="$LIBS_TERMCAP $LIBS"
3648 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3649 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3651 if test "X$msg" != Xno; then
3656 AC_MSG_RESULT([$msg])
3657 if test "X$msg" = Xno; then
3658 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3659 The following libraries were tried (in order):
3660 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3661 Please try installing whichever of these libraries is most appropriate
3662 for your system, together with its header files.
3663 For example, a libncurses-dev(el) or similar package.])
3666 ## Use termcap instead of terminfo?
3667 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3669 ## FIXME? In the cases below where we unconditionally set
3670 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3671 ## if that was found above to have tputs.
3672 ## Should we use the gnu* logic everywhere?
3674 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3675 ## The ncurses library has been moved out of the System framework in
3676 ## Mac OS X 10.2. So if configure detects it, set the command-line
3677 ## option to use it.
3678 darwin) LIBS_TERMCAP="-lncurses" ;;
3680 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3683 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3684 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3685 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3686 [[#if __FreeBSD_version < 400000
3689 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3691 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3693 if test $emacs_cv_freebsd_terminfo = yes; then
3694 LIBS_TERMCAP="-lncurses"
3697 LIBS_TERMCAP="-ltermcap"
3707 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3709 LIBS_TERMCAP="-ltermcap"
3713 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3715 ## hpux: Make sure we get select from libc rather than from libcurses
3716 ## because libcurses on HPUX 10.10 has a broken version of select.
3717 ## We used to use -lc -lcurses, but this may be cleaner.
3718 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3719 # set that way, now it uses the default). Isn't this a contradiction?
3720 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3724 TERMCAP_OBJ=tparam.o
3725 if test $TERMINFO = yes; then
3726 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3727 TERMCAP_OBJ=terminfo.o
3729 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3730 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3732 AC_SUBST(LIBS_TERMCAP)
3733 AC_SUBST(TERMCAP_OBJ)
3735 # GNU/Linux-specific timer functions.
3736 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3738 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3740 [[timerfd_create (CLOCK_REALTIME,
3741 TFD_CLOEXEC | TFD_NONBLOCK);
3742 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3743 [emacs_cv_have_timerfd=yes],
3744 [emacs_cv_have_timerfd=no])])
3745 if test "$emacs_cv_have_timerfd" = yes; then
3746 AC_DEFINE([HAVE_TIMERFD], 1,
3747 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3750 # Alternate stack for signal handlers.
3751 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3752 [emacs_cv_alternate_stack],
3754 [AC_LANG_PROGRAM([[#include <signal.h>
3757 struct sigaction sa;
3758 ss.ss_sp = malloc (SIGSTKSZ);
3759 ss.ss_size = SIGSTKSZ;
3760 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3761 sigaltstack (&ss, 0);
3762 sigaction (SIGSEGV, &sa, 0);]])],
3763 [emacs_cv_alternate_stack=yes],
3764 [emacs_cv_alternate_stack=no])])
3766 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3767 # On Darwin, res_init appears not to be useful: see bug#562 and
3768 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3771 if test $opsys != darwin; then
3773 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3774 #include <arpa/nameser.h>
3775 #include <resolv.h>]],
3776 [[return res_init();]])],
3777 have_res_init=yes, have_res_init=no)
3778 if test "$have_res_init" = no; then
3780 LIBS="$LIBS -lresolv"
3781 AC_MSG_CHECKING(for res_init with -lresolv)
3782 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3783 #include <arpa/nameser.h>
3784 #include <resolv.h>]],
3785 [[return res_init();]])],
3786 have_res_init=yes, have_res_init=no)
3787 AC_MSG_RESULT($have_res_init)
3788 if test "$have_res_init" = yes ; then
3794 if test "$have_res_init" = yes; then
3795 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3799 # Do we need the Hesiod library to provide the support routines?
3800 dnl FIXME? Should we be skipping this on Darwin too?
3802 if test "$with_hesiod" != no ; then
3803 # Don't set $LIBS here -- see comments above. FIXME which comments?
3804 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3805 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3806 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3807 if test "$resolv" = yes ; then
3812 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3813 hesiod=yes, :, $RESOLVLIB)])
3815 if test x"$hesiod" = xyes; then
3821 # Do we need libresolv (due to res_init or Hesiod)?
3822 if test "$resolv" = yes && test $opsys != darwin; then
3829 # These tell us which Kerberos-related libraries to use.
3836 if test "${with_kerberos}" != no; then
3838 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3839 if test $have_com_err = yes; then
3840 COM_ERRLIB=-lcom_err
3841 LIBS="$COM_ERRLIB $LIBS"
3843 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3844 if test $have_crypto = yes; then
3846 LIBS="$CRYPTOLIB $LIBS"
3848 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3849 if test $have_k5crypto = yes; then
3850 CRYPTOLIB=-lk5crypto
3851 LIBS="$CRYPTOLIB $LIBS"
3853 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3854 if test $have_krb5=yes; then
3856 LIBS="$KRB5LIB $LIBS"
3858 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3859 if test "${with_kerberos5}" = no; then
3860 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3861 if test $have_des425 = yes; then
3863 LIBS="$DESLIB $LIBS"
3865 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3866 if test $have_des = yes; then
3868 LIBS="$DESLIB $LIBS"
3871 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3872 if test $have_krb4 = yes; then
3874 LIBS="$KRB4LIB $LIBS"
3876 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3877 if test $have_krb = yes; then
3879 LIBS="$KRB4LIB $LIBS"
3884 if test "${with_kerberos5}" != no; then
3885 AC_CHECK_HEADERS(krb5.h,
3886 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3887 [#include <krb5.h>])])
3889 AC_CHECK_HEADERS(krb.h,,
3890 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3891 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3893 AC_CHECK_HEADERS(com_err.h)
3897 AC_SUBST(COM_ERRLIB)
3903 AC_CHECK_HEADERS(valgrind/valgrind.h)
3905 AC_CHECK_FUNCS_ONCE(tzset)
3906 AC_MSG_CHECKING(whether localtime caches TZ)
3907 AC_CACHE_VAL(emacs_cv_localtime_cache,
3908 [if test x$ac_cv_func_tzset = xyes; then
3909 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3910 char TZ_GMT0[] = "TZ=GMT0";
3911 char TZ_PST8[] = "TZ=PST8";
3914 time_t now = time ((time_t *) 0);
3915 int hour_GMT0, hour_unset;
3916 if (putenv (TZ_GMT0) != 0)
3918 hour_GMT0 = localtime (&now)->tm_hour;
3920 hour_unset = localtime (&now)->tm_hour;
3921 if (putenv (TZ_PST8) != 0)
3923 if (localtime (&now)->tm_hour == hour_GMT0)
3926 if (localtime (&now)->tm_hour != hour_unset)
3929 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3930 [# If we have tzset, assume the worst when cross-compiling.
3931 emacs_cv_localtime_cache=yes])
3933 # If we lack tzset, report that localtime does not cache TZ,
3934 # since we can't invalidate the cache if we don't have tzset.
3935 emacs_cv_localtime_cache=no
3937 AC_MSG_RESULT($emacs_cv_localtime_cache)
3938 if test $emacs_cv_localtime_cache = yes; then
3939 AC_DEFINE(LOCALTIME_CACHE, 1,
3940 [Define to 1 if localtime caches TZ.])
3944 AC_CHECK_FUNC(socket, , ok_so_far=no)
3945 if test $ok_so_far = yes; then
3946 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3948 if test $ok_so_far = yes; then
3949 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3951 if test $ok_so_far = yes; then
3952 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3953 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3954 [Define to 1 if you have inet sockets.])
3959 AC_CHECK_FUNCS(snprintf)
3961 dnl Check for glib. This differs from other library checks in that
3962 dnl Emacs need not link to glib unless some other library is already
3963 dnl linking to glib. Although glib provides no facilities that Emacs
3964 dnl needs for its own purposes, when glib is present Emacs needs to
3965 dnl use primitives like g_main_context_query to avoid clashing with
3966 dnl glib at a low level.
3968 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3972 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3973 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3974 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3975 LIBS="$LIBS $GFILENOTIFY_LIBS"
3976 AC_MSG_CHECKING([whether GLib is linked in])
3977 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3980 [[g_print ("Hello world");]])],
3983 AC_MSG_RESULT([$links_glib])
3984 if test "${links_glib}" = "yes"; then
3985 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3986 if test "$HAVE_NS" = no;then
3994 dnl Adapted from Haible's version.
3995 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3996 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3997 [[char* cs = nl_langinfo(CODESET);]])],
3998 emacs_cv_langinfo_codeset=yes,
3999 emacs_cv_langinfo_codeset=no)
4001 if test $emacs_cv_langinfo_codeset = yes; then
4002 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4003 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4008 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4009 dnl how the tty code is related to POSIX and/or other versions of termios.
4010 dnl The following looks like a useful start.
4012 dnl AC_SYS_POSIX_TERMIOS
4013 dnl if test $ac_cv_sys_posix_termios = yes; then
4014 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4015 dnl and macros for terminal control.])
4016 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4019 dnl Turned on June 1996 supposing nobody will mind it.
4020 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4021 if test "${opsys}" != "mingw32"; then
4022 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4023 in the full name stands for the login id.])
4026 dnl Everybody supports this, except MS.
4027 dnl Seems like the kind of thing we should be testing for, though.
4028 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4029 if test "${opsys}" != "mingw32"; then
4030 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4033 dnl Everybody supports this, except MS-DOS.
4034 dnl Seems like the kind of thing we should be testing for, though.
4035 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4036 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4037 4.2-compatible sockets.])
4039 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4041 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4042 a null file, or a data sink.])
4043 if test "${opsys}" = "mingw32"; then
4044 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4046 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4049 if test "${opsys}" = "mingw32"; then
4054 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4055 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4056 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4057 dnl decides that a command-line argument to be passed to a MinGW program
4058 dnl is a PATH-style list of directories. But that heuristics plays it
4059 dnl safe, and only does the replacement when it is _absolutely_ sure it
4060 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4061 dnl which breaks in-tree builds. So we do this manually instead.
4062 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4063 dnl be computed as ':' in MSYS Bash.
4066 dnl Everybody supports this, except MS-DOS.
4067 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4069 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4072 AC_DEFINE(DIRECTORY_SEP, ['/'],
4073 [Character that separates directories in a file name.])
4075 if test "${opsys}" = "mingw32"; then
4076 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4077 [Returns true if character is a device separator.])
4079 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4080 [Returns true if character is a directory separator.])
4082 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4083 [Returns true if character is any form of separator.])
4085 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4086 [Returns true if character is a device separator.])
4088 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4089 [Returns true if character is a directory separator.])
4091 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4092 [Returns true if character is any form of separator.])
4095 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4099 dnl Unfortunately without libXmu we cannot support EditRes.
4100 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4101 AC_DEFINE(NO_EDITRES, 1)
4106 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4107 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4108 AC_DEFINE(NO_EDITRES, 1)
4114 irix6-5 | sol2* | unixware )
4115 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4116 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4117 dnl need the constant to dimension an array. So wire in the appropriate
4119 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4123 emacs_broken_SIGIO=no
4126 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4127 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4128 hpux* | irix6-5 | openbsd | sol2* | unixware )
4129 emacs_broken_SIGIO=yes
4133 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4134 dnl the way this system works, libc functions that return malloced
4135 dnl memory use the libc malloc implementation. Calling xfree or
4136 dnl xrealloc on the results of such functions results in a crash.
4138 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4139 dnl but that does not currently work on this system.
4141 dnl It is possible to completely override the malloc implementation on
4142 dnl AIX, but that involves putting the malloc functions in a shared
4143 dnl library and setting the MALLOCTYPE environment variable to point to
4144 dnl that shared library.
4146 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4147 dnl to avoid a crash just use the Emacs implementation for that function.
4149 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4150 dnl of this file, so that we do not check for get_current_dir_name
4151 dnl on AIX. But that might be fragile if something else ends
4152 dnl up testing for get_current_dir_name as a dependency.
4153 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4154 get_current_dir_name should not be used.])
4158 dnl Circumvent a bug in FreeBSD. In the following sequence of
4159 dnl writes/reads on a PTY, read(2) returns bogus data:
4161 dnl write(2) 1022 bytes
4162 dnl write(2) 954 bytes, get EAGAIN
4163 dnl read(2) 1024 bytes in process_read_output
4164 dnl read(2) 11 bytes in process_read_output
4166 dnl That is, read(2) returns more bytes than have ever been written
4167 dnl successfully. The 1033 bytes read are the 1022 bytes written
4168 dnl successfully after processing (for example with CRs added if the
4169 dnl terminal is set up that way which it is here). The same bytes will
4170 dnl be seen again in a later read(2), without the CRs.
4171 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4172 work around an issue when reading from a PTY.])
4178 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4179 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4184 darwin | dragonfly | freebsd | netbsd | openbsd )
4185 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4186 close a pty to make it a controlling terminal (it is already a
4187 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4191 dnl FIXME Surely we can test for this rather than hard-code it.
4193 netbsd | openbsd) sound_device="/dev/audio" ;;
4194 *) sound_device="/dev/dsp" ;;
4198 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4199 [Name of the default sound device.])
4202 dnl Emacs can read input using SIGIO and buffering characters itself,
4203 dnl or using CBREAK mode and making C-g cause SIGINT.
4204 dnl The choice is controlled by the variable interrupt_input.
4206 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4208 dnl Emacs uses the presence of the USABLE_SIGIO macro
4209 dnl to indicate whether or not signal-driven I/O is possible. It uses
4210 dnl INTERRUPT_INPUT to decide whether to use it by default.
4212 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4213 dnl CBREAK mode has two disadvantages
4214 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4215 dnl I hear that in system V this problem does not exist.
4216 dnl 2) Control-G causes output to be discarded.
4217 dnl I do not know whether this can be fixed in system V.
4219 dnl Another method of doing input is planned but not implemented.
4220 dnl It would have Emacs fork off a separate process
4221 dnl to read the input and send it to the true Emacs process
4224 darwin | gnu-linux | gnu-kfreebsd )
4225 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4230 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4231 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4232 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4233 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4234 dnl taking float or double parameters.
4236 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4237 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4238 file defines `NeedWidePrototypes' as `NO'.])
4243 dnl Used in process.c, this must be a loop, even if it only runs once.
4244 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4245 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4246 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4247 dnl trying suffixes 0-16.
4248 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4249 first PTY, if PTYs are supported.])
4250 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4251 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4252 end of a PTY, if non-standard.])
4253 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4254 end of a PTY, if non-standard.])
4258 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4259 dnl You allocate a pty by opening /dev/ptc to get the master side.
4260 dnl To get the name of the slave side, you just ttyname() the master side.
4261 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4262 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4266 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4267 dnl multi-line AC_DEFINEs are hard. :(
4268 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)])
4269 AC_DEFINE(PTY_NAME_SPRINTF, [])
4270 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4273 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4275 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4276 dnl Not used, because PTY_ITERATION is defined.
4277 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4278 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4279 dnl But we don't have to block SIGCHLD because it is blocked in the
4280 dnl implementation of grantpt.
4281 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4282 AC_DEFINE(PTY_NAME_SPRINTF, [])
4283 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4287 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4290 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4292 if test "x$ac_cv_func_grantpt" = xyes; then
4293 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4294 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4295 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4296 dnl to prevent sigchld_handler from intercepting the child's death.
4297 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); }])
4298 dnl if HAVE_POSIX_OPENPT
4299 if test "x$ac_cv_func_posix_openpt" = xyes; then
4300 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4301 AC_DEFINE(PTY_NAME_SPRINTF, [])
4303 elif test "x$ac_cv_func_getpt" = xyes; then
4304 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4305 AC_DEFINE(PTY_NAME_SPRINTF, [])
4307 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4310 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4315 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4316 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4317 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4321 dnl It looks like this cannot be right, because it is not a loop.
4322 dnl However, process.c actually does this:
4328 dnl which presumably makes it OK, since irix == sgi (?).
4329 dnl FIXME it seems like this special treatment is unnecessary?
4330 dnl Why can't irix use a single-trip loop like eg cygwin?
4331 AC_DEFINE(PTY_ITERATION, [])
4332 dnl Not used, because PTY_ITERATION is defined.
4333 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4334 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); }])
4335 dnl No need to get the pty name at all.
4336 AC_DEFINE(PTY_NAME_SPRINTF, [])
4337 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4338 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4342 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4343 dnl from intercepting that death. If any child but grantpt's should die
4344 dnl within, it should be caught after sigrelse(2).
4345 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); }])
4349 dnl Comments are as per sol2*.
4350 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); }])
4357 dnl This change means that we don't loop through allocate_pty too
4358 dnl many times in the (rare) event of a failure.
4359 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4360 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4361 dnl Push various streams modules onto a PTY channel. Used in process.c.
4362 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.])
4367 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4368 "typing" a signal character on the pty.])
4371 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4372 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4373 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4374 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4377 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4378 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4379 gnu-linux | gnu-kfreebsd )
4381 AC_MSG_CHECKING([for signals via characters])
4382 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4383 #include <linux/version.h>
4384 #if LINUX_VERSION_CODE < 0x20400
4385 # error "Linux version too old"
4387 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4389 AC_MSG_RESULT([$emacs_signals_via_chars])
4390 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4395 AH_TEMPLATE(TAB3, [Undocumented.])
4398 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4400 gnu | dragonfly | freebsd | netbsd | openbsd )
4401 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4402 AC_DEFINE(TAB3, OXTABS)
4405 gnu-linux | gnu-kfreebsd )
4406 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4410 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4411 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4412 [Mark a secondary stack, like the register stack on the ia64.]), [])
4416 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4417 run_time_remap; for HPUX.])
4422 dnl This won't be used automatically yet. We also need to know, at least,
4423 dnl that the stack is continuous.
4424 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4425 registers relevant for conservative garbage collection in the jmp_buf.])
4429 dnl Not all the architectures are tested, but there are Debian packages
4430 dnl for SCM and/or Guile on them, so the technique must work. See also
4431 dnl comments in alloc.c concerning setjmp and gcc.
4432 dnl Fixme: it's probably safe to just use the GCC conditional below.
4433 gnu-linux | gnu-kfreebsd )
4434 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4435 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4436 || defined __alpha__ || defined __mips__ || defined __s390__ \
4437 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4438 || defined __ia64__ || defined __sh__
4441 # error "setjmp not known to work on this arch"
4443 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4448 if test x$GCC = xyes; then
4449 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4450 AC_DEFINE(GC_SETJMP_WORKS, 1)
4453 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4454 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4455 AC_DEFINE(GC_SETJMP_WORKS, 1)
4460 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4461 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4464 [[#include <setjmp.h>
4466 # define _longjmp longjmp
4471 _longjmp (j, 1);]])],
4472 [emacs_cv_func__setjmp=yes],
4473 [emacs_cv_func__setjmp=no])])
4474 if test $emacs_cv_func__setjmp = yes; then
4475 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4478 # We need to preserve signal mask to handle C stack overflows.
4479 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4482 [[#include <setjmp.h>
4485 if (! sigsetjmp (j, 1))
4486 siglongjmp (j, 1);]])],
4487 [emacs_cv_func_sigsetjmp=yes],
4488 [emacs_cv_func_sigsetjmp=no])])
4489 if test $emacs_cv_func_sigsetjmp = yes; then
4490 AC_DEFINE([HAVE_SIGSETJMP], 1,
4491 [Define to 1 if sigsetjmp and siglongjmp work.])
4494 # We need all of these features to handle C stack overflows.
4495 if test "$ac_cv_header_sys_resource_h" = "yes" -a \
4496 "$ac_cv_func_getrlimit" = "yes" -a \
4497 "$emacs_cv_func_sigsetjmp" = "yes" -a \
4498 "$emacs_cv_alternate_stack" = yes; then
4499 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4500 [Define to 1 if C stack overflow can be handled in some cases.])
4505 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4506 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4507 dnl and this is all we need.
4508 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4515 dnl Used in xfaces.c.
4516 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4517 some systems, where it requires time.h.])
4522 dnl Define symbols to identify the version of Unix this is.
4523 dnl Define all the symbols that apply correctly.
4524 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4525 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4526 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4527 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4532 dnl This symbol should be defined on AIX Version 3 ???????
4533 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4535 # error "_AIX not defined"
4537 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4541 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4545 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4546 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4547 dnl distinguish OS X from pure Darwin.
4548 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4551 gnu-linux | gnu-kfreebsd )
4553 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4558 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4563 AC_DEFINE(USG5_4, [])
4564 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4568 AC_DEFINE(DOS_NT, [])
4569 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4570 if test "x$ac_enable_checking" != "x" ; then
4571 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4577 AC_DEFINE(USG5_4, [])
4578 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4583 AC_DEFINE(USG5_4, [])
4587 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4590 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4591 emacs_cv_usable_FIONREAD=no
4595 emacs_cv_usable_FIONREAD=yes
4600 [AC_LANG_PROGRAM([[#include <sys/types.h>
4601 #include <sys/ioctl.h>
4603 # include <sys/filio.h>
4606 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4607 [emacs_cv_usable_FIONREAD=yes],
4608 [emacs_cv_usable_FIONREAD=no])
4611 if test $emacs_cv_usable_FIONREAD = yes; then
4612 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4614 if test $emacs_broken_SIGIO = no; then
4615 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4617 [AC_LANG_PROGRAM([[#include <fcntl.h>
4620 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4621 [emacs_cv_usable_SIGIO=yes],
4622 [emacs_cv_usable_SIGIO=no])],
4623 [emacs_cv_usable_SIGIO=yes],
4624 [emacs_cv_usable_SIGIO=no])
4625 if test $emacs_cv_usable_SIGIO = yes; then
4626 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4633 dnl It works to open the pty's tty in the parent (Emacs), then
4634 dnl close and reopen it in the child.
4635 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4636 works to open a pty's tty in the parent process, then close and
4637 reopen it in the child.])
4641 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4642 use VSUSP instead of VSWTCH.])
4646 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4651 # Set up the CFLAGS for real compilation, so we can substitute it.
4652 CFLAGS="$REAL_CFLAGS"
4653 CPPFLAGS="$REAL_CPPFLAGS"
4656 ## Hack to detect a buggy GCC version.
4657 if test "x$GCC" = xyes \
4658 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4659 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4660 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4661 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4664 version=$PACKAGE_VERSION
4666 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4667 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4668 [Short copyright string for this version of Emacs.])
4671 ### Specify what sort of things we'll be editing into Makefile and config.h.
4672 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4674 AC_SUBST(configuration)
4679 AC_SUBST(exec_prefix)
4682 AC_SUBST(sharedstatedir)
4683 AC_SUBST(libexecdir)
4687 AC_SUBST(standardlisppath)
4688 AC_SUBST(locallisppath)
4690 AC_SUBST(x_default_search_path)
4692 AC_SUBST(archlibdir)
4697 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4698 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4699 ## end of LIBX_BASE, but nothing ever set it.
4700 AC_SUBST(LD_SWITCH_X_SITE)
4701 AC_SUBST(C_SWITCH_X_SITE)
4702 AC_SUBST(GNUSTEP_CFLAGS)
4704 ## Used in lwlib/Makefile.in.
4705 AC_SUBST(X_TOOLKIT_TYPE)
4707 AC_SUBST(ns_appbindir)
4708 AC_SUBST(ns_appresdir)
4710 AC_SUBST(GNU_OBJC_CFLAGS)
4711 AC_SUBST(OTHER_FILES)
4713 if test -n "${term_header}"; then
4714 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4715 [Define to the header for the built-in window system.])
4718 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4719 [Define to the canonical Emacs configuration name.])
4720 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4721 [Define to the options passed to configure.])
4722 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4723 define this to include extra configuration information.])
4727 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4734 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4735 AC_DEFINE(HAVE_X_WINDOWS, 1,
4736 [Define to 1 if you want to use the X window system.])
4738 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4740 if test "$HAVE_XFT" = "yes"; then
4741 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4742 elif test "$HAVE_FREETYPE" = "yes"; then
4743 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4753 if test "${USE_X_TOOLKIT}" != "none" ; then
4755 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4756 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4757 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4758 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4759 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4763 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4764 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4768 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4769 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4770 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4774 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4775 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4778 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4781 AC_SUBST(WIDGET_OBJ)
4784 case "$USE_X_TOOLKIT" in
4785 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4786 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4787 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4789 AC_SUBST(TOOLKIT_LIBW)
4791 if test "${opsys}" != "mingw32"; then
4792 if test "$USE_X_TOOLKIT" = "none"; then
4793 LIBXT_OTHER="\$(LIBXSM)"
4795 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4798 AC_SUBST(LIBXT_OTHER)
4800 if test "${HAVE_X11}" = "yes" ; then
4801 AC_DEFINE(HAVE_X11, 1,
4802 [Define to 1 if you want to use version 11 of X windows.])
4803 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4807 AC_SUBST(LIBX_OTHER)
4809 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4811 elif test "$USE_X_TOOLKIT" = none; then
4812 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4814 LIBXMENU='$(lwlibdir)/liblw.a'
4818 if test "${GNU_MALLOC}" = "yes" ; then
4819 AC_DEFINE(GNU_MALLOC, 1,
4820 [Define to 1 if you want to use the GNU memory allocator.])
4824 if test "${REL_ALLOC}" = "yes" ; then
4825 AC_DEFINE(REL_ALLOC, 1,
4826 [Define REL_ALLOC if you want to use the relocating allocator for
4829 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4831 AC_SUBST(RALLOC_OBJ)
4833 if test "$opsys" = "cygwin"; then
4834 CYGWIN_OBJ="sheap.o cygw32.o"
4835 ## Cygwin differs because of its unexec().
4837 POST_ALLOC_OBJ=lastfile.o
4838 elif test "$opsys" = "mingw32"; then
4841 POST_ALLOC_OBJ=lastfile.o
4844 PRE_ALLOC_OBJ=lastfile.o
4847 AC_SUBST(CYGWIN_OBJ)
4848 AC_SUBST(PRE_ALLOC_OBJ)
4849 AC_SUBST(POST_ALLOC_OBJ)
4851 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4852 dnl verbatim defined above. The tricky name is apropos, as this hack
4853 dnl makes Fortify go sour!
4854 AH_VERBATIM([FORTIFY_SOUR],
4855 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4856 The workaround disables some useful run-time checking, so it
4857 should be conditional to the platforms with the performance bug.
4858 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4859 #if defined __APPLE__ && defined __GNUC__
4860 # ifndef _DONT_USE_CTYPE_INLINE_
4861 # define _DONT_USE_CTYPE_INLINE_
4863 # ifndef _FORTIFY_SOURCE
4864 # define _FORTIFY_SOURCE 0
4869 # If user asks to omit features, disable optional features that gnulib
4870 # might otherwise enable.
4871 if test "$with_features" = no && test "$enable_acl" != yes; then
4875 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4876 # it temporarily reverts them to their pre-pkg-config values,
4877 # because gnulib needs to work with both src (which uses the
4878 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4879 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4880 # and it therefore needs to run in an environment where LIBS does not
4881 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4882 # for some package unrelated to lib-src.
4885 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4886 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4887 gl_ASSERT_NO_GNULIB_POSIXCHECK
4888 gl_ASSERT_NO_GNULIB_TESTS
4893 if test "${opsys}" = "mingw32"; then
4894 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4895 # Remove unneeded switches from the value of CC that goes to Makefiles
4896 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4900 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4903 ## The -headerpad option tells ld (see man page) to leave room at the
4904 ## end of the header for adding load commands. Needed for dumping.
4905 ## 0x690 is the total size of 30 segment load commands (at 56
4906 ## each); under Cocoa 31 commands are required.
4907 if test "$HAVE_NS" = "yes"; then
4908 libs_nsgui="-framework AppKit"
4909 if test "$NS_IMPL_COCOA" = "yes"; then
4910 libs_nsgui="$libs_nsgui -framework IOKit"
4917 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4919 ## This is here because src/Makefile.in did some extra fiddling around
4920 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4921 ## LD_SWITCH_SYSTEM_TEMACS instead,
4922 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4923 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4926 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4927 ## find X at run-time.
4928 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4929 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4930 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4931 ## had different values in configure (in ac_link) and src/Makefile.in.
4932 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4933 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4936 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4937 case "$canonical" in
4938 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4939 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4943 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4945 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4948 if test x$ac_enable_profiling != x ; then
4950 *freebsd | gnu-linux) ;;
4951 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4955 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4957 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4959 ## Common for all window systems
4960 if test "$window_system" != "none"; then
4961 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4962 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4963 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4966 AC_SUBST(WINDOW_SYSTEM_OBJ)
4968 AH_TOP([/* GNU Emacs site configuration template file.
4970 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4971 Free Software Foundation, Inc.
4973 This file is part of GNU Emacs.
4975 GNU Emacs is free software: you can redistribute it and/or modify
4976 it under the terms of the GNU General Public License as published by
4977 the Free Software Foundation, either version 3 of the License, or
4978 (at your option) any later version.
4980 GNU Emacs is distributed in the hope that it will be useful,
4981 but WITHOUT ANY WARRANTY; without even the implied warranty of
4982 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4983 GNU General Public License for more details.
4985 You should have received a copy of the GNU General Public License
4986 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4989 /* No code in Emacs #includes config.h twice, but some bits of code
4990 intended to work with other packages as well (like gmalloc.c)
4991 think they can include it as many times as they like. */
4992 #ifndef EMACS_CONFIG_H
4993 #define EMACS_CONFIG_H
4996 AH_BOTTOM([#include <conf_post.h>
4998 #endif /* EMACS_CONFIG_H */
5007 #### Report on what we decided to do.
5008 #### Report GTK as a toolkit, even if it doesn't use Xt.
5009 #### It makes printing result more understandable as using GTK sets
5010 #### toolkit_scroll_bars to yes by default.
5011 if test "${HAVE_GTK}" = "yes"; then
5012 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5015 if test $USE_ACL -ne 0; then
5016 ACL_SUMMARY="yes $LIB_ACL"
5022 Configured for \`${canonical}'.
5024 Where should the build process find the source code? ${srcdir}
5025 What compiler should emacs be built with? ${CC} ${CFLAGS}
5026 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5027 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5028 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5029 What window system should Emacs use? ${window_system}
5030 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5032 if test -n "${x_includes}"; then
5033 echo " Where do we find X Windows header files? ${x_includes}"
5035 echo " Where do we find X Windows header files? Standard dirs"
5037 if test -n "${x_libraries}"; then
5038 echo " Where do we find X Windows libraries? ${x_libraries}"
5040 echo " Where do we find X Windows libraries? Standard dirs"
5044 emacs_config_features=
5045 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
5046 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5050 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5051 *) eval val=\${HAVE_$opt} ;;
5053 test x"$val" = xno && continue
5054 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5057 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5058 [Summary of some of the main features enabled by configure.])
5060 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5061 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5062 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5063 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5064 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5065 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5066 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5067 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5069 echo " Does Emacs support sound? ${HAVE_SOUND}"
5071 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5072 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5073 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5074 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5075 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5076 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5077 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5078 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5079 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5081 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5082 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5083 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5084 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5085 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5087 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5090 if test -n "${EMACSDATA}"; then
5091 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5093 if test -n "${EMACSDOC}"; then
5094 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5099 if test "$HAVE_NS" = "yes"; then
5101 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5102 The installed application will go to nextstep/Emacs.app and can be
5103 run or moved from there."
5104 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5105 echo "The application will be fully self-contained."
5107 echo "The lisp resources for the application will be installed under ${prefix}.
5108 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5109 to run if these resources are not installed."
5114 if test "${opsys}" = "cygwin"; then
5116 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5122 # Remove any trailing slashes in these variables.
5123 [test "${prefix}" != NONE &&
5124 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5125 test "${exec_prefix}" != NONE &&
5126 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5128 if test "$HAVE_NS" = "yes"; then
5129 if test "$NS_IMPL_GNUSTEP" = yes; then
5130 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5131 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5132 ns_check_file=Resources/Info-gnustep.plist
5134 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5135 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5136 ns_check_file=Contents/Info.plist
5138 AC_SUBST(ns_check_file)
5141 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5142 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5143 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5144 dnl (else you get "no `Makefile.am' found for any configure output").
5145 dnl This will work, but you get a config.status that is not quite right
5146 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5147 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5148 dnl it seems better to just live with the duplication.
5149 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5151 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5152 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5153 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5154 leim/Makefile nextstep/Makefile nt/Makefile])
5156 dnl test/ is not present in release tarfiles.
5157 opt_makefile=test/automated/Makefile
5159 if test -f "$srcdir/$opt_makefile.in"; then
5160 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5161 dnl Again, it's best not to use a variable. Though you can add
5162 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5163 AC_CONFIG_FILES([test/automated/Makefile])
5167 dnl The admin/ directory used to be excluded from tarfiles.
5168 if test -d $srcdir/admin; then
5169 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5170 AC_CONFIG_FILES([admin/unidata/Makefile])
5171 AC_CONFIG_FILES([admin/grammars/Makefile])
5175 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5177 AC_SUBST(SUBDIR_MAKEFILES_IN)
5179 dnl You might wonder (I did) why epaths.h is generated by running make,
5180 dnl rather than just letting configure generate it from epaths.in.
5181 dnl One reason is that the various paths are not fully expanded (see above);
5182 dnl eg gamedir=${prefix}/var/games/emacs.
5183 dnl Secondly, the GNU Coding standards require that one should be able
5184 dnl to run `make prefix=/some/where/else' and override the values set
5185 dnl by configure. This also explains the `move-if-change' test and
5186 dnl the use of force in the `epaths-force' rule in Makefile.in.
5187 AC_CONFIG_COMMANDS([src/epaths.h], [
5188 if test "${opsys}" = "mingw32"; then
5189 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5191 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5192 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5193 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5195 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5196 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5198 AC_CONFIG_COMMANDS([src/.gdbinit], [
5199 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5200 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5206 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])