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="$nw -Wformat-nonliteral" # we do this a lot
848 nw="$nw -Wvla" # Emacs uses <vla.h>.
849 nw="$nw -Wswitch-default" # Too many warnings for now
850 nw="$nw -Winline" # OK to ignore 'inline'
851 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
852 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
853 # signed overflow has undefined behavior
854 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
855 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
856 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
858 # Emacs doesn't care about shadowing; see
859 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
862 # Emacs's use of alloca inhibits protecting the stack.
863 nw="$nw -Wstack-protector"
865 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
866 # option problematic.
867 nw="$nw -Wsuggest-attribute=pure"
869 # This part is merely for shortening the command line,
870 # since -Wno-FOO needs to be added below regardless.
871 nw="$nw -Wmissing-field-initializers"
873 nw="$nw -Wtype-limits"
874 nw="$nw -Wunused-parameter"
876 if test $emacs_cv_clang = yes; then
877 nw="$nw -Wcast-align"
880 gl_MANYWARN_ALL_GCC([ws])
881 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
885 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
886 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
887 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
888 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
889 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
890 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
891 gl_WARN_ADD([-Wno-format-nonliteral])
893 # More things that clang is unduly picky about.
894 if test $emacs_cv_clang = yes; then
895 gl_WARN_ADD([-Wno-format-extra-args])
896 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
897 gl_WARN_ADD([-Wno-unused-command-line-argument])
898 gl_WARN_ADD([-Wno-unused-value])
901 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
902 AH_VERBATIM([FORTIFY_SOURCE],
903 [/* Enable compile-time and run-time bounds-checking, and some warnings,
904 without upsetting glibc 2.15+. */
905 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
906 # define _FORTIFY_SOURCE 2
909 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
911 # We use a slightly smaller set of warning options for lib/.
912 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
914 nw="$nw -Wunused-macros"
916 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
917 AC_SUBST([GNULIB_WARN_CFLAGS])
927 AC_ARG_ENABLE(link-time-optimization,
928 [AS_HELP_STRING([--enable-link-time-optimization],
929 [build emacs with link-time optimization.
930 This requires GCC 4.5.0 or later, or clang.
931 (Note that clang support is experimental - see INSTALL.)
932 It also makes Emacs harder to debug, and when we tried it
933 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
934 recommended for typical use.])],
935 if test "${enableval}" != "no"; then
937 if test $emacs_cv_clang = yes; then
938 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
939 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
940 if test -x "$GOLD_PLUGIN"; then
943 elif test x$GCC = xyes; then
944 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
945 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
946 if test x$CPUS != x; then
952 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
954 if test -z "$LTO"; then
958 CFLAGS="$CFLAGS $LTO"
959 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
960 [ac_lto_supported=yes], [ac_lto_supported=no])
963 AC_MSG_RESULT([$ac_lto_supported])
964 if test "$ac_lto_supported" = "yes"; then
965 CFLAGS="$CFLAGS $LTO"
966 if test x$emacs_cv_clang = xyes; then
967 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
968 # WARNING: 'ar --plugin ...' doesn't work without
969 # command, so plugin name is appended to ARFLAGS.
970 ARFLAGS="cru --plugin $GOLD_PLUGIN"
971 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
973 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
974 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
975 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
976 dnl dump core on Fedora 20, so play it safe for now.
977 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
978 [CFLAGS="$CFLAGS -ffat-lto-objects"])
983 dnl Some other nice autoconf tests.
984 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
987 dnl if test "x$RANLIB" = x; then
992 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
993 dnl can be made to directories. This is not relevant for our usage, and
994 dnl excludes some cases that work fine for us. Eg MS Windows or files
995 dnl hosted on AFS, both examples where simple links work, but links to
996 dnl directories fail. We use a cut-down version instead.
999 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1000 rm -f conf$$ conf$$.file
1002 LN_S_FILEONLY='cp -p'
1004 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1005 dnl random program in the current directory.
1006 if (echo >conf$$.file) 2>/dev/null; then
1007 if ln -s conf$$.file conf$$ 2>/dev/null; then
1008 if test "$opsys" = "mingw32"; then
1009 LN_S_FILEONLY='/bin/ln -s'
1011 LN_S_FILEONLY='ln -s'
1013 elif ln conf$$.file conf$$ 2>/dev/null; then
1014 if test "$opsys" = "mingw32"; then
1015 LN_S_FILEONLY=/bin/ln
1022 rm -f conf$$ conf$$.file
1024 if test "$LN_S_FILEONLY" = "ln -s"; then
1025 AC_MSG_RESULT([yes])
1027 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1030 AC_SUBST(LN_S_FILEONLY)
1033 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1034 dnl doesn't support links to directories, as in "ln file dir". But that
1035 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1036 dnl executables at "make install" time.
1037 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1038 dnl for more details.
1039 if test "$opsys" = "mingw32"; then
1043 dnl On some Debian versions, "install-info" prints irritating messages
1044 dnl "This is not dpkg install-info anymore, but GNU install-info"
1045 dnl if called via an absolute file name.
1046 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1047 dnl Sadly some people may have an old ginstall-info installed on
1048 dnl non-Debian systems, so we can't use this.
1049 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1050 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1052 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1053 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1054 dnl Don't use GZIP, which is used by gzip for additional parameters.
1055 AC_PATH_PROG(GZIP_PROG, gzip)
1057 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1058 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1060 if test $opsys = gnu-linux; then
1061 AC_PATH_PROG(PAXCTL, paxctl,,
1062 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1063 if test "X$PAXCTL" != X; then
1064 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1065 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1066 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1067 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1070 if test "${SETFATTR+set}" != set; then
1071 AC_CACHE_CHECK([for setfattr],
1072 [emacs_cv_prog_setfattr],
1074 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1075 emacs_cv_prog_setfattr=yes
1077 emacs_cv_prog_setfattr=no
1079 if test "$emacs_cv_prog_setfattr" = yes; then
1085 AC_SUBST([SETFATTR])
1089 ## Need makeinfo >= 4.7 (?) to build the manuals.
1090 if test "$MAKEINFO" != "no"; then
1091 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1094 case `($MAKEINFO --version) 2>/dev/null` in
1095 'makeinfo (GNU texinfo) '4.[[7-9]]* | \
1096 'makeinfo (GNU texinfo) '4.[[1-9][0-9]]* | \
1097 'makeinfo (GNU texinfo) '[[5-9]]* | \
1098 'makeinfo (GNU texinfo) '[[1-9][0-9]]* ) ;;
1103 ## Makeinfo is unusual. For a released Emacs, the manuals are
1104 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1105 ## therefore in the category of "special tools" not normally required, which
1106 ## configure does not have to check for (eg autoconf itself).
1107 ## In a repository checkout on the other hand, the manuals are not included.
1108 ## So makeinfo is a requirement to build from the repository, and configure
1109 ## should test for it as it does for any other build requirement.
1110 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1111 ## with pre-built manuals, from a repository checkout.
1114 if test "$MAKEINFO" = "no"; then
1116 if test "x${with_makeinfo}" = "xno"; then
1118 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1119 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1120 source tree does not seem to have pre-built manuals in the `info' directory.
1121 Either install a suitable version of makeinfo, or re-run configure
1122 with the `--without-makeinfo' option to build without the manuals.] )
1125 AC_SUBST(HAVE_MAKEINFO)
1127 if test $opsys = mingw32; then
1128 DOCMISC_W32=efaq-w32
1132 AC_SUBST(DOCMISC_W32)
1134 dnl Add our options to ac_link now, after it is set up.
1136 if test x$GCC = xyes; then
1137 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1138 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1140 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1141 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1144 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1145 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1146 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1147 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1148 dnl if not built to support GNU ld.
1150 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1151 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1152 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1153 dnl Eg "make LDFLAGS=... all" could run into problems,
1154 dnl http://bugs.debian.org/684788
1155 dnl * unnecessary, since temacs is the only thing that actually needs it.
1156 dnl Indeed this is where it was originally, prior to:
1157 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1158 late_LDFLAGS="$LDFLAGS"
1159 if test x$GCC = xyes; then
1160 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1162 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1165 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1167 AC_MSG_CHECKING([for -znocombreloc])
1168 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1169 [AC_MSG_RESULT(yes)],
1170 LDFLAGS_NOCOMBRELOC=
1171 [AC_MSG_RESULT(no)])
1173 LDFLAGS="$late_LDFLAGS"
1175 AC_CACHE_CHECK([whether addresses are sanitized],
1176 [emacs_cv_sanitize_address],
1179 [[#ifndef __has_feature
1180 #define __has_feature(f) 0
1182 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1184 error "Addresses are not sanitized.";
1187 [emacs_cv_sanitize_address=yes],
1188 [emacs_cv_sanitize_address=no])])
1190 dnl The function dump-emacs will not be defined and temacs will do
1191 dnl (load "loadup") automatically unless told otherwise.
1192 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1194 your-opsys-here) CANNOT_DUMP=yes ;;
1197 if test "$CANNOT_DUMP" = "yes"; then
1198 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1199 elif test "$emacs_cv_sanitize_address" = yes; then
1200 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1203 AC_SUBST(CANNOT_DUMP)
1206 UNEXEC_OBJ=unexelf.o
1208 # MSDOS uses unexcoff.o
1210 UNEXEC_OBJ=unexaix.o
1216 UNEXEC_OBJ=unexmacosx.o
1219 UNEXEC_OBJ=unexhp9k800.o
1222 UNEXEC_OBJ=unexw32.o
1225 # Use the Solaris dldump() function, called from unexsol.c, to dump
1226 # emacs, instead of the generic ELF dump code found in unexelf.c.
1227 # The resulting binary has a complete symbol table, and is better
1228 # for debugging and other observability tools (debuggers, pstack, etc).
1230 # If you encounter a problem using dldump(), please consider sending
1231 # a message to the OpenSolaris tools-linking mailing list:
1232 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1234 # It is likely that dldump() works with older Solaris too, but this has
1235 # not been tested, so for now this change is for Solaris 10 or newer.
1236 UNEXEC_OBJ=unexsol.o
1243 ## Let `ld' find image libs and similar things in /usr/local/lib.
1244 ## The system compiler, GCC, has apparently been modified to not
1245 ## look there, contrary to what a stock GCC would do.
1246 ### It's not our place to do this. See bug#10313#17.
1247 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1252 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1253 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1257 ### It's not our place to do this. See bug#10313#17.
1258 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1263 ## Han Boetes <han@boetes.org> says this is necessary,
1264 ## otherwise Emacs dumps core on elf systems.
1265 LD_SWITCH_SYSTEM="-Z"
1268 AC_SUBST(LD_SWITCH_SYSTEM)
1270 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1272 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1273 ## which has not been defined yet. When this was handled with cpp,
1274 ## it was expanded to null when configure sourced the s/*.h file.
1275 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1276 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1277 ## (or somesuch), but because it is supposed to go at the _front_
1278 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1279 ## Compare with the gnu-linux case below, which added to the end
1280 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1281 ## LD_SWITCH_SYSTEM_TEMACS.
1284 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1291 AC_CHECK_DECL([__ELF__])
1292 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1293 ## With ELF, make sure that all common symbols get allocated to in the
1294 ## data section. Otherwise, the dump of temacs may miss variables in
1295 ## the shared library that have been initialized. For example, with
1296 ## GNU libc, __malloc_initialized would normally be resolved to the
1297 ## shared library's .bss section, which is fatal.
1298 if test "x$GCC" = "xyes"; then
1299 C_SWITCH_MACHINE="-fno-common"
1301 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1304 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1305 dnl albeit under the mistaken assumption that said file
1306 dnl was no longer used.
1307 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1311 AC_SUBST(C_SWITCH_MACHINE)
1313 AC_SUBST(UNEXEC_OBJ)
1316 ## Some programs in src produce warnings saying certain subprograms
1317 ## are too complex and need a MAXMEM value greater than 2000 for
1318 ## additional optimization. --nils@exp-math.uni-essen.de
1319 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1320 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1321 if test "$opsys" = "mingw32"; then
1322 case "$canonical" in
1323 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1324 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1327 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1328 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1329 AC_SUBST(C_SWITCH_SYSTEM)
1334 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1335 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1337 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1339 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1341 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1343 ## Motif needs -lgen.
1344 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1347 AC_SUBST(LIBS_SYSTEM)
1349 ### Make sure subsequent tests use flags consistent with the build flags.
1351 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1352 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1354 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1357 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1358 AC_DEFUN([AC_TYPE_SIZE_T])
1359 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1360 AC_DEFUN([AC_TYPE_UID_T])
1362 # sqrt and other floating-point functions such as fmod and frexp
1363 # are found in -lm on many systems.
1365 AC_SEARCH_LIBS([sqrt], [m])
1366 if test "X$LIBS" = "X$OLD_LIBS"; then
1369 LIB_MATH=$ac_cv_search_sqrt
1373 dnl Current possibilities handled by sed (aix4-2 -> aix,
1374 dnl gnu-linux -> gnu/linux, etc.):
1375 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1376 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1377 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1384 ## Adding -lm confuses the dynamic linker, so omit it.
1387 freebsd | dragonfly )
1388 SYSTEM_TYPE=berkeley-unix
1390 gnu-linux | gnu-kfreebsd )
1392 hpux10-20 | hpux11 )
1396 SYSTEM_TYPE=windows-nt
1398 dnl NB this may be adjusted below.
1400 SYSTEM_TYPE=berkeley-unix
1404 SYSTEM_TYPE=usg-unix-v
1410 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1411 [The type of system you are compiling for; sets `system-type'.])
1414 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1415 pre_PKG_CONFIG_LIBS=$LIBS
1417 PKG_PROG_PKG_CONFIG(0.9.0)
1419 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1420 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1421 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1422 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1423 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1424 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1426 AC_DEFUN([EMACS_CHECK_MODULES],
1427 [PKG_CHECK_MODULES([$1], [$2],
1428 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1429 m4_default([$3], [HAVE_$1=yes])],
1430 [m4_default([$4], [HAVE_$1=no])])])
1433 if test "${with_sound}" != "no"; then
1434 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1435 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1436 have_sound_header=yes, [], [
1438 #define WIN32_LEAN_AND_MEAN
1439 #include <windows.h>
1442 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1443 AC_MSG_ERROR([OSS sound support requested but not found.])
1445 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1446 # Emulation library used on NetBSD.
1447 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1448 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1449 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1450 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1451 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1455 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1457 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1458 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1459 if test $HAVE_ALSA = yes; then
1460 SAVE_CFLAGS="$CFLAGS"
1462 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1463 LIBS="$ALSA_LIBS $LIBS"
1464 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1465 emacs_alsa_normal=yes,
1466 emacs_alsa_normal=no)
1467 if test "$emacs_alsa_normal" != yes; then
1468 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1469 [[snd_lib_error_set_handler (0);]])],
1470 emacs_alsa_subdir=yes,
1471 emacs_alsa_subdir=no)
1472 if test "$emacs_alsa_subdir" != yes; then
1473 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1475 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1478 CFLAGS="$SAVE_CFLAGS"
1480 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1481 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1482 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1483 elif test "${with_sound}" = "alsa"; then
1484 AC_MSG_ERROR([ALSA sound support requested but not found.])
1486 fi dnl with_sound = alsa|yes
1488 dnl Define HAVE_SOUND if we have sound support. We know it works and
1489 dnl compiles only on the specified platforms. For others, it
1490 dnl probably doesn't make sense to try.
1491 dnl FIXME So surely we should bypass this whole section if not using
1492 dnl one of these platforms?
1493 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1495 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1496 dnl Adjust the --with-sound help text if you change this.
1497 gnu-linux|freebsd|netbsd|mingw32)
1498 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1504 AC_SUBST(CFLAGS_SOUND)
1507 dnl checks for header files
1508 AC_CHECK_HEADERS_ONCE(
1513 sys/utsname.h pwd.h utmp.h util.h)
1515 AC_MSG_CHECKING(if personality LINUX32 can be set)
1516 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1517 emacs_cv_personality_linux32=yes,
1518 emacs_cv_personality_linux32=no)
1519 AC_MSG_RESULT($emacs_cv_personality_linux32)
1521 if test $emacs_cv_personality_linux32 = yes; then
1522 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1523 [Define to 1 if personality LINUX32 can be set.])
1526 # Note that Solaris has sys/sysinfo.h which defines struct
1527 # sysinfo as well. To make sure that we're using GNU/Linux
1528 # sysinfo, we explicitly set one of its fields.
1529 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1530 AC_MSG_CHECKING([if Linux sysinfo may be used])
1531 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1532 [[struct sysinfo si;
1535 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1536 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1537 if test $emacs_cv_linux_sysinfo = yes; then
1538 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1539 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1540 [[struct sysinfo si; return si.mem_unit]])],
1541 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1542 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1546 dnl On Solaris 8 there's a compilation warning for term.h because
1547 dnl it doesn't define `bool'.
1548 AC_CHECK_HEADERS(term.h, , , -)
1550 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1552 if test $ac_cv_have_decl_sys_siglist != yes; then
1553 # For Tru64, at least:
1554 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1559 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1560 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1561 #if HAVE_SYS_SOCKET_H
1562 #include <sys/socket.h>
1564 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1565 #if HAVE_SYS_SOCKET_H
1566 #include <sys/socket.h>
1568 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1569 #if HAVE_SYS_SOCKET_H
1570 #include <sys/socket.h>
1573 dnl checks for structure members
1574 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1575 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1576 struct ifreq.ifr_addr,
1577 struct ifreq.ifr_addr.sa_len], , ,
1578 [AC_INCLUDES_DEFAULT
1579 #if HAVE_SYS_SOCKET_H
1580 #include <sys/socket.h>
1586 dnl Check for endianness.
1587 dnl AC_C_BIGENDIAN is done by gnulib.
1589 dnl check for Make feature
1594 dnl check if we have GCC and autodepend is on.
1595 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1596 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1597 SAVE_CFLAGS="$CFLAGS"
1598 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1599 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1600 CFLAGS="$SAVE_CFLAGS"
1601 test -f deps.d || ac_enable_autodepend=no
1603 AC_MSG_RESULT([$ac_enable_autodepend])
1604 if test $ac_enable_autodepend = yes; then
1605 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1606 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1607 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1608 deps_frag=autodeps.mk
1611 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1612 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1613 deps_frag=$srcdir/src/$deps_frag
1616 AC_SUBST_FILE(deps_frag)
1617 AC_SUBST_FILE(lwlib_deps_frag)
1618 AC_SUBST_FILE(oldxmenu_deps_frag)
1620 lisp_frag=$srcdir/src/lisp.mk
1621 AC_SUBST_FILE(lisp_frag)
1624 dnl checks for operating system services
1625 AC_SYS_LONG_FILE_NAMES
1627 #### Choose a window system.
1629 ## We leave window_system equal to none if
1630 ## we end up building without one. Any new window system should
1631 ## set window_system to an appropriate value and add objects to
1632 ## window-system-specific substs.
1636 if test "$no_x" != yes; then
1640 LD_SWITCH_X_SITE_RPATH=
1641 if test "${x_libraries}" != NONE; then
1642 if test -n "${x_libraries}"; then
1643 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1644 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1646 x_default_search_path=""
1647 x_search_path=${x_libraries}
1648 if test -z "${x_search_path}"; then
1649 x_search_path=/usr/lib
1651 for x_library in `echo ${x_search_path}: | \
1652 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1654 ${x_library}/X11/%L/%T/%N%C%S:\
1655 ${x_library}/X11/%l/%T/%N%C%S:\
1656 ${x_library}/X11/%T/%N%C%S:\
1657 ${x_library}/X11/%L/%T/%N%S:\
1658 ${x_library}/X11/%l/%T/%N%S:\
1659 ${x_library}/X11/%T/%N%S"
1660 if test x"${x_default_search_path}" = x; then
1661 x_default_search_path=${x_search_path}
1663 x_default_search_path="${x_search_path}:${x_default_search_path}"
1667 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1669 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1670 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1673 if test x"${x_includes}" = x; then
1674 bitmapdir=/usr/include/X11/bitmaps
1676 # accumulate include directories that have X11 bitmap subdirectories
1678 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1679 if test -d "${bmd}/X11/bitmaps"; then
1680 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1682 if test -d "${bmd}/bitmaps"; then
1683 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1686 if test ${bmd_acc} != "dummyval"; then
1687 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1694 tmp_CPPFLAGS="$CPPFLAGS"
1695 tmp_CFLAGS="$CFLAGS"
1696 CPPFLAGS="$CPPFLAGS -x objective-c"
1697 CFLAGS="$CFLAGS -x objective-c"
1700 if test "${with_ns}" != no; then
1701 if test "${opsys}" = darwin; then
1703 ns_appdir=`pwd`/nextstep/Emacs.app
1704 ns_appbindir=${ns_appdir}/Contents/MacOS
1705 ns_appresdir=${ns_appdir}/Contents/Resources
1706 ns_appsrc=Cocoa/Emacs.base
1707 elif test -f $GNUSTEP_CONFIG_FILE; then
1709 ns_appdir=`pwd`/nextstep/Emacs.app
1710 ns_appbindir=${ns_appdir}
1711 ns_appresdir=${ns_appdir}/Resources
1712 ns_appsrc=GNUstep/Emacs.base
1713 dnl FIXME sourcing this several times in subshells seems inefficient.
1714 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1715 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1716 dnl I seemed to need these as well with GNUstep-startup 0.25.
1717 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1718 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1719 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1720 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1721 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1722 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1723 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1724 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1725 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1726 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1727 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1728 dnl If they had chosen to either define it or not, we could have
1729 dnl just used AC_CHECK_DECL here.
1730 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1731 emacs_cv_objc_exceptions,
1732 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1733 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1737 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1738 if test $emacs_cv_objc_exceptions = yes; then
1739 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1740 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1741 [Define if GNUstep uses ObjC exceptions.])
1742 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1746 dnl This is only used while we test the NS headers, it gets reset below.
1747 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1749 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1750 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1751 files are missing or cannot be compiled.])])
1754 if test "${NS_IMPL_COCOA}" = "yes"; then
1755 AC_MSG_CHECKING([for OSX 10.4 or newer])
1756 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1758 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1759 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1762 error "OSX 10.4 or newer required";
1766 ns_osx_have_104=yes,
1768 AC_MSG_RESULT([$ns_osx_have_104])
1770 if test $ns_osx_have_104 = no; then
1771 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1773 AC_MSG_CHECKING([for OSX 10.5 or newer])
1774 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1776 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1777 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1780 error "OSX 10.5 not found";
1784 ns_osx_have_105=yes,
1786 AC_MSG_RESULT([$ns_osx_have_105])
1787 if test $ns_osx_have_105 = yes; then
1788 macfont_file="macfont.o"
1791 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1793 ns_have_nsinteger=yes,
1794 ns_have_nsinteger=no)
1795 if test $ns_have_nsinteger = yes; then
1796 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1800 AC_SUBST(LIBS_GNUSTEP)
1802 INSTALL_ARCH_INDEP_EXTRA=install-etc
1803 ns_self_contained=no
1806 if test "${HAVE_NS}" = yes; then
1807 if test "$with_toolkit_scroll_bars" = "no"; then
1808 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1811 window_system=nextstep
1812 # set up packaging dirs
1813 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1814 ns_self_contained=yes
1815 prefix=${ns_appresdir}
1816 exec_prefix=${ns_appbindir}
1817 dnl This one isn't really used, only archlibdir is.
1818 libexecdir="\${ns_appbindir}/libexec"
1819 archlibdir="\${ns_appbindir}/libexec"
1820 etcdocdir="\${ns_appresdir}/etc"
1821 etcdir="\${ns_appresdir}/etc"
1822 dnl FIXME maybe set datarootdir instead.
1823 dnl That would also get applications, icons, man.
1824 infodir="\${ns_appresdir}/info"
1825 mandir="\${ns_appresdir}/man"
1826 lispdir="\${ns_appresdir}/lisp"
1827 INSTALL_ARCH_INDEP_EXTRA=
1830 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1832 CFLAGS="$tmp_CFLAGS"
1833 CPPFLAGS="$tmp_CPPFLAGS"
1834 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1835 AC_SUBST(ns_self_contained)
1837 AC_SUBST(NS_OBJC_OBJ)
1848 if test "${with_w32}" != no; then
1851 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1852 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1853 cannot be found.])])
1856 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1859 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1864 if test "${opsys}" = "mingw32"; then
1865 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1866 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1867 #include <windows.h>
1868 #include <usp10.h>]],
1869 [[PIMAGE_NT_HEADERS pHeader;
1870 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1871 [emacs_cv_w32api=yes
1874 AC_MSG_RESULT($emacs_cv_w32api)
1875 if test "${emacs_cv_w32api}" = "no"; then
1876 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1887 if test "${HAVE_W32}" = "yes"; then
1888 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1889 AC_CHECK_TOOL(WINDRES, [windres],
1890 [AC_MSG_ERROR([No resource compiler found.])])
1891 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1892 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1893 EMACSRES="emacs.res"
1894 case "$canonical" in
1895 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1896 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1898 if test "${opsys}" = "cygwin"; then
1899 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1900 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1901 # Tell the linker that emacs.res is an object (which we compile from
1902 # the rc file), not a linker script.
1903 W32_RES_LINK="-Wl,emacs.res"
1905 UPDATE_MANIFEST=update-game-score.exe.manifest
1906 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1907 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1908 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1909 W32_RES_LINK="\$(EMACSRES)"
1910 CLIENTRES="emacsclient.res"
1911 CLIENTW="emacsclientw\$(EXEEXT)"
1912 FIRSTFILE_OBJ=firstfile.o
1915 LIBS_ECLIENT="-lcomctl32"
1916 LIB_WSOCK32="-lwsock32"
1917 NTLIB="ntlib.$ac_objext"
1918 XARGS_LIMIT="-s 10000"
1924 AC_SUBST(EMACS_MANIFEST)
1925 AC_SUBST(UPDATE_MANIFEST)
1928 AC_SUBST(W32_RES_LINK)
1929 AC_SUBST(FIRSTFILE_OBJ)
1932 AC_SUBST(LIBS_ECLIENT)
1933 AC_SUBST(LIB_WSOCK32)
1935 AC_SUBST(XARGS_LIMIT)
1937 if test "${HAVE_W32}" = "yes"; then
1942 ## $window_system is now set to the window system we will
1945 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1946 # Too many warnings for now.
1948 nw="$nw -Wsuggest-attribute=const"
1949 nw="$nw -Wsuggest-attribute=noreturn"
1950 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1952 gl_WARN_ADD([-Wno-unused-variable])
1953 gl_WARN_ADD([-Wno-unused-but-set-variable])
1954 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1962 case "${window_system}" in
1967 case "${with_x_toolkit}" in
1968 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1969 motif ) USE_X_TOOLKIT=MOTIF ;;
1971 term_header=gtkutil.h
1972 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1973 dnl USE_X_TOOLKIT is set.
1974 USE_X_TOOLKIT=none ;;
1975 gtk2 ) with_gtk2=yes
1976 term_header=gtkutil.h
1977 USE_X_TOOLKIT=none ;;
1978 gtk3 ) with_gtk3=yes
1979 term_header=gtkutil.h
1980 USE_X_TOOLKIT=none ;;
1981 no ) USE_X_TOOLKIT=none ;;
1982 dnl If user did not say whether to use a toolkit, make this decision later:
1983 dnl use the toolkit if we have gtk, or X11R5 or newer.
1984 * ) USE_X_TOOLKIT=maybe ;;
1988 term_header=nsterm.h
1991 term_header=w32term.h
1995 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1996 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1997 if test "$HAVE_XSERVER" = true ||
1998 test -n "$DISPLAY" ||
1999 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
2000 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2001 were found. You should install the relevant development files for X
2002 and for the toolkit you want, such as Gtk+ or Motif. Also make
2003 sure you have development files for image handling, i.e.
2004 tiff, gif, jpeg, png and xpm.
2005 If you are sure you want Emacs compiled without X window support, pass
2011 # Does the opsystem file prohibit the use of the GNU malloc?
2012 # Assume not, until told otherwise.
2016 [whether malloc is Doug Lea style],
2017 [emacs_cv_var_doug_lea_malloc],
2018 [emacs_cv_var_doug_lea_malloc=no
2019 dnl Hooks do not work with address sanitization.
2020 if test "$emacs_cv_sanitize_address" != yes; then
2023 [[#include <malloc.h>
2024 static void hook (void) {}]],
2025 [[malloc_set_state (malloc_get_state ());
2026 __after_morecore_hook = hook;
2027 __malloc_initialize_hook = hook;]])],
2028 [emacs_cv_var_doug_lea_malloc=yes])])
2030 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2032 system_malloc=$emacs_cv_sanitize_address
2037 ## darwin ld insists on the use of malloc routines in the System framework.
2038 darwin|mingw32|sol2-10) system_malloc=yes ;;
2039 cygwin) hybrid_malloc=yes;;
2043 if test "${system_malloc}" = "yes"; then
2044 AC_DEFINE([SYSTEM_MALLOC], 1,
2045 [Define to 1 to use the system memory allocator, even if it is not
2049 (The GNU allocators don't work with this system configuration.)"
2051 elif test "$hybrid_malloc" = yes; then
2052 AC_DEFINE(HYBRID_MALLOC, 1,
2053 [Define to use gmalloc before dumping and the system malloc after.])
2055 GNU_MALLOC_reason="only before dumping"
2056 GMALLOC_OBJ=gmalloc.o
2059 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2060 VMLIMIT_OBJ=vm-limit.o
2062 AC_CHECK_HEADERS([sys/vlimit.h])
2063 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2066 [[extern char data_start[]; char ch;]],
2067 [[return data_start < &ch;]])],
2068 [emacs_cv_data_start=yes],
2069 [emacs_cv_data_start=no])])
2070 if test $emacs_cv_data_start = yes; then
2071 AC_DEFINE([HAVE_DATA_START], 1,
2072 [Define to 1 if data_start is the address of the start
2073 of the main data segment.])
2076 AC_SUBST(GMALLOC_OBJ)
2077 AC_SUBST(VMLIMIT_OBJ)
2079 if test "$doug_lea_malloc" = "yes" ; then
2080 if test "$GNU_MALLOC" = yes ; then
2082 (Using Doug Lea's new malloc from the GNU C Library.)"
2084 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2085 [Define to 1 if the system memory allocator is Doug Lea style,
2086 with malloc hooks and malloc_set_state.])
2088 ## Use mmap directly for allocating larger buffers.
2089 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2090 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2091 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2093 mingw32|gnu*) REL_ALLOC=no ;;
2097 if test x"${REL_ALLOC}" = x; then
2098 REL_ALLOC=${GNU_MALLOC}
2101 use_mmap_for_buffers=no
2103 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2107 if test $use_mmap_for_buffers = yes; then
2108 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2112 LIBS="$LIBS_SYSTEM $LIBS"
2114 dnl FIXME replace main with a function we actually want from this library.
2115 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2117 dnl Check for the POSIX thread library.
2119 if test "$opsys" != "mingw32"; then
2120 AC_CHECK_HEADERS_ONCE(pthread.h)
2121 if test "$ac_cv_header_pthread_h"; then
2122 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2123 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2124 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2125 if test "$GMALLOC_OBJ" = gmalloc.o; then
2126 emacs_pthread_function=pthread_atfork
2128 emacs_pthread_function=pthread_kill
2131 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2132 [AC_DEFINE([HAVE_PTHREAD], [1],
2133 [Define to 1 if you have pthread (-lpthread).])
2134 # Some systems optimize for single-threaded programs by default, and
2135 # need special flags to disable these optimizations. For example, the
2136 # definition of 'errno' in <errno.h>.
2139 AC_DEFINE([_REENTRANT], 1,
2140 [Define to 1 if your system requires this in multithreaded code.]);;
2142 AC_DEFINE([_THREAD_SAFE], 1,
2143 [Define to 1 if your system requires this in multithreaded code.]);;
2145 if test "X$LIBS" != "X$OLD_LIBS"; then
2146 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2150 AC_SUBST([LIB_PTHREAD])
2153 dnl Check for need for bigtoc support on IBM AIX
2157 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2159 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2160 *) gdb_cv_bigtoc=-bbigtoc ;;
2163 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2164 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2169 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2170 # is for the tests that follow. We set them back later on.
2172 REAL_CFLAGS="$CFLAGS"
2173 REAL_CPPFLAGS="$CPPFLAGS"
2176 if test "${HAVE_X11}" = "yes"; then
2177 DEFS="$C_SWITCH_X_SITE $DEFS"
2178 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2180 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2181 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2183 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2184 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2185 # but it's more convenient here to set LD_RUN_PATH since this
2186 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2187 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2188 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2192 if test "${opsys}" = "gnu-linux"; then
2193 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2194 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2195 [[XOpenDisplay ("foo");]])],
2196 [xgnu_linux_first_failure=no],
2197 [xgnu_linux_first_failure=yes])
2198 if test "${xgnu_linux_first_failure}" = "yes"; then
2199 OLD_CPPFLAGS="$CPPFLAGS"
2201 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2202 LIBS="$LIBS -b i486-linuxaout"
2203 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2204 [[XOpenDisplay ("foo");]])],
2205 [xgnu_linux_second_failure=no],
2206 [xgnu_linux_second_failure=yes])
2207 if test "${xgnu_linux_second_failure}" = "yes"; then
2208 # If we get the same failure with -b, there is no use adding -b.
2209 # So leave it out. This plays safe.
2212 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2213 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2216 CPPFLAGS=$OLD_CPPFLAGS
2223 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2224 # header files included from there.
2225 AC_MSG_CHECKING(for Xkb)
2226 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2227 #include <X11/XKBlib.h>]],
2228 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2229 emacs_xkb=yes, emacs_xkb=no)
2230 AC_MSG_RESULT($emacs_xkb)
2231 if test $emacs_xkb = yes; then
2232 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2235 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2236 XScreenNumberOfScreen)
2239 if test "${window_system}" = "x11"; then
2240 AC_MSG_CHECKING(X11 version 6)
2241 AC_CACHE_VAL(emacs_cv_x11_version_6,
2242 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2243 [[#if XlibSpecificationRelease < 6
2246 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2247 if test $emacs_cv_x11_version_6 = yes; then
2248 AC_MSG_RESULT(6 or newer)
2249 AC_DEFINE(HAVE_X11R6, 1,
2250 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2251 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2252 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2256 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2257 [Define if you have usable X11R6-style XIM support.])
2261 AC_MSG_RESULT(before 6)
2266 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2268 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2269 if test "${with_rsvg}" != "no"; then
2270 RSVG_REQUIRED=2.11.0
2271 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2273 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2274 AC_SUBST(RSVG_CFLAGS)
2277 if test $HAVE_RSVG = yes; then
2278 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2279 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2280 # Windows loads librsvg dynamically
2281 if test "${opsys}" = "mingw32"; then
2289 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2290 if test "${with_imagemagick}" != "no"; then
2291 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2292 ## 6.8.2 makes Emacs crash; see Bug#13867.
2293 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2294 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2295 AC_SUBST(IMAGEMAGICK_CFLAGS)
2296 AC_SUBST(IMAGEMAGICK_LIBS)
2298 if test $HAVE_IMAGEMAGICK = yes; then
2299 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2302 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2303 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2304 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2314 gtk_term_header=$term_header
2317 if test "${opsys}" != "mingw32"; then
2318 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2321 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2323 dnl Checks for libraries.
2324 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2325 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2326 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2327 AC_MSG_ERROR($GTK_PKG_ERRORS)
2329 if test "$pkg_check_gtk" = "yes"; then
2330 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2331 GTK_OBJ=emacsgtkfixed.o
2332 gtk_term_header=gtkutil.h
2333 USE_GTK_TOOLKIT="GTK3"
2334 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2335 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2336 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2337 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2338 [Define to 1 to disable Glib deprecation warnings.])
2342 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2346 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2349 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2351 dnl Checks for libraries.
2352 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2353 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2354 if test "$pkg_check_gtk" = "no" &&
2355 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2357 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2359 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2366 if test x"$pkg_check_gtk" = xyes; then
2369 CFLAGS="$CFLAGS $GTK_CFLAGS"
2370 LIBS="$GTK_LIBS $LIBS"
2371 dnl Try to compile a simple GTK program.
2372 AC_MSG_CHECKING([whether GTK compiles])
2376 [[/* Check the Gtk and Glib APIs. */
2377 #include <gtk/gtk.h>
2378 #include <glib-object.h>
2380 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2384 GtkSettings *gs = 0;
2385 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2386 strict C prohibits this. Use gtk_main_iteration to test that the
2387 libraries are there. */
2388 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2389 0, 0, 0, G_CALLBACK (callback), 0))
2390 gtk_main_iteration ();
2393 AC_MSG_RESULT([$GTK_COMPILES])
2394 if test "${GTK_COMPILES}" != "yes"; then
2396 if test "$USE_X_TOOLKIT" != "maybe"; then
2397 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2400 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2402 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2403 GTK_OBJ="gtkutil.o $GTK_OBJ"
2404 term_header=$gtk_term_header
2406 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2409 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2410 closing open displays. This is no problem if you just use
2411 one display, but if you use more than one and close one of them
2421 if test "${HAVE_GTK}" = "yes"; then
2423 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2424 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2425 if test "$with_toolkit_scroll_bars" != no; then
2426 with_toolkit_scroll_bars=yes
2429 dnl Check if we have the old file selection dialog declared and
2430 dnl in the link library. In 2.x it may be in the library,
2431 dnl but not declared if deprecated featured has been selected out.
2432 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2433 HAVE_GTK_FILE_SELECTION=no
2434 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2435 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2436 #include <gtk/gtk.h>])
2437 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2438 AC_CHECK_FUNCS(gtk_file_selection_new)
2441 dnl Same as above for gtk_handle_box.
2442 HAVE_GTK_HANDLE_BOX=no
2443 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2444 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2445 #include <gtk/gtk.h>])
2446 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2447 AC_CHECK_FUNCS(gtk_handle_box_new)
2450 dnl Same as above for gtk_tearoff_menu_item.
2451 HAVE_GTK_TEAROFF_MENU_ITEM=no
2452 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2453 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2454 #include <gtk/gtk.h>])
2455 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2456 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2459 dnl Check for functions introduced in 2.14 and later.
2460 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2461 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2462 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2463 gtk_orientable_set_orientation \
2464 gtk_window_set_has_resize_grip)
2466 term_header=gtkutil.h
2472 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2473 dnl other platforms.
2476 if test "${with_dbus}" = "yes"; then
2477 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2478 if test "$HAVE_DBUS" = yes; then
2479 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2480 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2481 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2484 LIBS="$LIBS $DBUS_LIBS"
2485 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2486 dbus_type_is_valid \
2487 dbus_validate_bus_name \
2488 dbus_validate_path \
2489 dbus_validate_interface \
2490 dbus_validate_member)
2495 AC_SUBST(DBUS_CFLAGS)
2499 dnl GSettings has been tested under GNU/Linux only.
2501 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2502 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2503 if test "$HAVE_GSETTINGS" = "yes"; then
2505 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2507 LIBS="$LIBS $GSETTINGS_LIBS"
2508 AC_MSG_CHECKING([whether GSettings is in gio])
2511 [[/* Check that gsettings really is present. */
2512 #include <glib-object.h>
2513 #include <gio/gio.h>
2516 GSettings *settings;
2517 GVariant *val = g_settings_get_value (settings, "");
2519 [], HAVE_GSETTINGS=no)
2520 AC_MSG_RESULT([$HAVE_GSETTINGS])
2522 if test "$HAVE_GSETTINGS" = "yes"; then
2523 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2524 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2525 SETTINGS_LIBS="$GSETTINGS_LIBS"
2532 dnl GConf has been tested under GNU/Linux only.
2533 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2535 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2536 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2537 if test "$HAVE_GCONF" = yes; then
2538 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2539 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2540 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2541 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2545 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2546 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2547 if test "$HAVE_GOBJECT" = "yes"; then
2548 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2549 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2551 SAVE_CFLAGS="$CFLAGS"
2553 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2554 LIBS="$SETTINGS_LIBS $LIBS"
2555 CFLAGS="$SAVE_CFLAGS"
2558 AC_SUBST(SETTINGS_CFLAGS)
2559 AC_SUBST(SETTINGS_LIBS)
2562 dnl SELinux is available for GNU/Linux only.
2565 if test "${with_selinux}" = "yes"; then
2566 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2567 if test "$HAVE_LIBSELINUX" = yes; then
2568 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2569 LIBSELINUX_LIBS=-lselinux
2572 AC_SUBST(LIBSELINUX_LIBS)
2576 if test "${with_gnutls}" = "yes" ; then
2577 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2578 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2579 if test "${HAVE_GNUTLS3}" = "yes"; then
2580 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2583 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2584 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2586 if test "${HAVE_GNUTLS}" = "yes"; then
2587 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2590 # Windows loads GnuTLS dynamically
2591 if test "${opsys}" = "mingw32"; then
2596 AC_SUBST(LIBGNUTLS_LIBS)
2597 AC_SUBST(LIBGNUTLS_CFLAGS)
2602 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2603 dnl a particular library. This doesn't make much sense?
2604 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2605 with_file_notification=no
2608 dnl MS Windows native file monitor is available for mingw32 only.
2609 case $with_file_notification,$opsys in
2610 w32,* | yes,mingw32)
2611 AC_CHECK_HEADER(windows.h)
2612 if test "$ac_cv_header_windows_h" = yes ; then
2613 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2614 NOTIFY_OBJ=w32notify.o
2615 NOTIFY_SUMMARY="yes (w32)"
2619 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2620 dnl has been added in glib 2.24. It has been tested under
2621 dnl GNU/Linux only. We take precedence over inotify, but this makes
2622 dnl only sense when glib has been compiled with inotify support. How
2624 case $with_file_notification,$NOTIFY_OBJ in
2626 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2627 if test "$HAVE_GFILENOTIFY" = "yes"; then
2628 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2629 NOTIFY_OBJ=gfilenotify.o
2630 NOTIFY_SUMMARY="yes -lgio (gfile)"
2634 dnl inotify is only available on GNU/Linux.
2635 case $with_file_notification,$NOTIFY_OBJ in
2637 AC_CHECK_HEADER(sys/inotify.h)
2638 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2639 AC_CHECK_FUNC(inotify_init1)
2640 if test "$ac_cv_func_inotify_init1" = yes; then
2641 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2642 NOTIFY_OBJ=inotify.o
2643 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2648 case $with_file_notification,$NOTIFY_OBJ in
2649 yes,* | no,* | *,?*) ;;
2650 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2653 if test -n "$NOTIFY_OBJ"; then
2654 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2656 AC_SUBST(NOTIFY_OBJ)
2657 AC_SUBST(GFILENOTIFY_CFLAGS)
2658 AC_SUBST(GFILENOTIFY_LIBS)
2660 dnl Do not put whitespace before the #include statements below.
2661 dnl Older compilers (eg sunos4 cc) choke on it.
2664 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2665 if test "$with_xaw3d" != no; then
2666 AC_CACHE_VAL(emacs_cv_xaw3d,
2667 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2668 #include <X11/Intrinsic.h>
2669 #include <X11/Xaw3d/Simple.h>]],
2671 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2672 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2673 emacs_cv_xaw3d=no)])
2677 if test $emacs_cv_xaw3d = yes; then
2678 AC_MSG_CHECKING(for xaw3d)
2679 AC_MSG_RESULT([yes; using Lucid toolkit])
2683 AC_DEFINE(HAVE_XAW3D, 1,
2684 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2686 AC_MSG_CHECKING(for xaw3d)
2688 AC_MSG_CHECKING(for libXaw)
2689 AC_CACHE_VAL(emacs_cv_xaw,
2690 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2691 #include <X11/Intrinsic.h>
2692 #include <X11/Xaw/Simple.h>]],
2696 if test $emacs_cv_xaw = yes; then
2697 AC_MSG_RESULT([yes; using Lucid toolkit])
2700 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2701 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2703 AC_MSG_ERROR([No X toolkit could be found.
2704 If you are sure you want Emacs compiled without an X toolkit, pass
2706 to configure. Otherwise, install the development libraries for the toolkit
2707 that you want to use (e.g. Gtk+) and re-run configure.])
2712 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2716 if test "${USE_X_TOOLKIT}" != "none"; then
2717 AC_MSG_CHECKING(X11 toolkit version)
2718 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2719 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2720 [[#if XtSpecificationRelease < 6
2723 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2724 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2725 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2726 AC_MSG_RESULT(6 or newer)
2727 AC_DEFINE(HAVE_X11XTR6, 1,
2728 [Define to 1 if you have the X11R6 or newer version of Xt.])
2729 LIBXTR6="-lSM -lICE"
2731 ## Use libw.a along with X11R6 Xt.
2732 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2735 AC_MSG_RESULT(before 6)
2738 dnl If using toolkit, check whether libXmu.a exists.
2739 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2741 if test x$HAVE_X11XTR6 = xyes; then
2742 OTHERLIBS='-lXt -lSM -lICE'
2746 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2747 if test "X$LIBS" != "X$OLDLIBS"; then
2748 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2751 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2757 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2758 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2759 if test -d /usr/include/openmotif; then
2760 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2761 emacs_cv_openmotif=yes
2762 case "$canonical" in
2763 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2764 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2767 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2770 emacs_cv_openmotif=no
2772 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2773 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2774 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2777 Motif version prior to 2.1.
2779 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2780 if test $emacs_cv_motif_version_2_1 = yes; then
2781 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2782 if test x$emacs_cv_openmotif = xyes; then
2783 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2786 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2787 # We put this in CFLAGS temporarily to precede other -I options
2788 # that might be in CFLAGS temporarily.
2789 # We put this in CPPFLAGS where it precedes the other -I options.
2790 OLD_CPPFLAGS=$CPPFLAGS
2792 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2793 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2794 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2796 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2797 if test $emacs_cv_lesstif = yes; then
2798 # Make sure this -I option remains in CPPFLAGS after it is set
2799 # back to REAL_CPPFLAGS.
2800 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2801 # have those other -I options anyway. Ultimately, having this
2802 # directory ultimately in CPPFLAGS will be enough.
2803 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2804 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2807 CPPFLAGS=$OLD_CPPFLAGS
2810 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2811 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2814 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2815 dnl using Motif or Xaw3d is available, and unless
2816 dnl --with-toolkit-scroll-bars=no was specified.
2818 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2819 [Define to 1 if we should use toolkit scroll bars.])dnl
2820 USE_TOOLKIT_SCROLL_BARS=no
2821 if test "${with_toolkit_scroll_bars}" != "no"; then
2822 if test "${USE_X_TOOLKIT}" != "none"; then
2823 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2824 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2826 USE_TOOLKIT_SCROLL_BARS=yes
2827 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2828 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2829 USE_TOOLKIT_SCROLL_BARS=yes
2831 elif test "${HAVE_GTK}" = "yes"; then
2832 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2833 USE_TOOLKIT_SCROLL_BARS=yes
2834 elif test "${HAVE_NS}" = "yes"; then
2835 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2836 USE_TOOLKIT_SCROLL_BARS=yes
2837 elif test "${HAVE_W32}" = "yes"; then
2838 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2839 USE_TOOLKIT_SCROLL_BARS=yes
2843 dnl See if XIM is available.
2844 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2845 #include <X11/Xlib.h>
2846 #include <X11/Xresource.h>]],
2847 [[XIMProc callback;]])],
2849 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2852 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2854 if test "${with_xim}" != "no"; then
2855 AC_DEFINE(USE_XIM, 1,
2856 [Define to 1 if we should use XIM, if it is available.])
2860 if test "${HAVE_XIM}" != "no"; then
2862 if test "$GCC" = yes; then
2863 CFLAGS="$CFLAGS --pedantic-errors"
2865 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2866 #include <X11/Xlib.h>
2867 #include <X11/Xresource.h>]],
2873 XPointer *client_data;
2875 /* If we're not using GCC, it's probably not XFree86, and this is
2876 probably right, but we can't use something like --pedantic-errors. */
2877 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2878 char*, XIMProc, XPointer*);
2880 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2882 [emacs_cv_arg6_star=yes])
2883 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2884 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2885 either XPointer or XPointer*.])dnl
2886 if test "$emacs_cv_arg6_star" = yes; then
2887 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2889 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2894 ### Start of font-backend (under any platform) section.
2895 # (nothing here yet -- this is a placeholder)
2896 ### End of font-backend (under any platform) section.
2898 ### Start of font-backend (under X11) section.
2899 if test "${HAVE_X11}" = "yes"; then
2900 ## Use -lXft if available, unless `--with-xft=no'.
2902 if test "x${with_x}" = "xno"; then
2906 if test "$with_xft" != no; then
2907 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2908 with_xft=$HAVE_FONTCONFIG
2911 if test "x${with_xft}" != "xno"; then
2913 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2914 ## Because xftfont.c uses XRenderQueryExtension, we also
2915 ## need to link to -lXrender.
2917 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2918 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2919 OLD_CPPFLAGS="$CPPFLAGS"
2920 OLD_CFLAGS="$CFLAGS"
2922 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2923 CFLAGS="$CFLAGS $XFT_CFLAGS"
2924 XFT_LIBS="-lXrender $XFT_LIBS"
2925 LIBS="$XFT_LIBS $LIBS"
2926 AC_CHECK_HEADER(X11/Xft/Xft.h,
2927 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2928 [[#include <X11/X.h>]])
2930 if test "${HAVE_XFT}" = "yes"; then
2931 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2933 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2934 fi # "${HAVE_XFT}" = "yes"
2935 CPPFLAGS=$OLD_CPPFLAGS
2938 fi # "$HAVE_XFT" != no
2939 fi # "x${with_xft}" != "xno"
2941 ## We used to allow building with FreeType and without Xft.
2942 ## However, the ftx font backend driver is not in good shape.
2943 if test "$HAVE_XFT" != "yes"; then
2944 dnl For the "Does Emacs use" message at the end.
2948 dnl Strict linkers fail with
2949 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2950 dnl if -lfreetype is not specified.
2951 dnl The following is needed to set FREETYPE_LIBS.
2952 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2954 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2958 if test "${HAVE_FREETYPE}" = "yes"; then
2959 AC_DEFINE(HAVE_FREETYPE, 1,
2960 [Define to 1 if using the freetype and fontconfig libraries.])
2961 if test "${with_libotf}" != "no"; then
2962 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2963 if test "$HAVE_LIBOTF" = "yes"; then
2964 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2965 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2966 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2967 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2968 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2969 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2970 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2974 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2975 dnl Does the new font backend require it, or can it work without it?
2979 if test "${HAVE_LIBOTF}" = yes; then
2980 if test "${with_m17n_flt}" != "no"; then
2981 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2982 if test "$HAVE_M17N_FLT" = "yes"; then
2983 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2994 ### End of font-backend (under X11) section.
2996 AC_SUBST(FREETYPE_CFLAGS)
2997 AC_SUBST(FREETYPE_LIBS)
2998 AC_SUBST(FONTCONFIG_CFLAGS)
2999 AC_SUBST(FONTCONFIG_LIBS)
3000 AC_SUBST(LIBOTF_CFLAGS)
3001 AC_SUBST(LIBOTF_LIBS)
3002 AC_SUBST(M17N_FLT_CFLAGS)
3003 AC_SUBST(M17N_FLT_LIBS)
3005 ### Use -lXpm if available, unless `--with-xpm=no'.
3006 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3007 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3008 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3009 ### LDFLAGS) accordingly.
3012 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3013 if test "${with_xpm}" != "no"; then
3014 SAVE_CPPFLAGS="$CPPFLAGS"
3015 SAVE_LDFLAGS="$LDFLAGS"
3016 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3017 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3018 AC_CHECK_HEADER(X11/xpm.h,
3019 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3020 if test "${HAVE_XPM}" = "yes"; then
3021 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3022 AC_EGREP_CPP(no_return_alloc_pixels,
3023 [#include "X11/xpm.h"
3024 #ifndef XpmReturnAllocPixels
3025 no_return_alloc_pixels
3027 ], HAVE_XPM=no, HAVE_XPM=yes)
3029 if test "${HAVE_XPM}" = "yes"; then
3030 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3034 CPPFLAGS="$SAVE_CPPFLAGS"
3035 LDFLAGS="$SAVE_LDFLAGS"
3040 if test "${HAVE_XPM}" = "yes"; then
3041 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3046 if test "${HAVE_X11}" = "yes"; then
3047 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3048 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3050 if test "${with_xpm}" != "no"; then
3051 AC_CHECK_HEADER(X11/xpm.h,
3052 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3053 if test "${HAVE_XPM}" = "yes"; then
3054 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3055 AC_EGREP_CPP(no_return_alloc_pixels,
3056 [#include "X11/xpm.h"
3057 #ifndef XpmReturnAllocPixels
3058 no_return_alloc_pixels
3060 ], HAVE_XPM=no, HAVE_XPM=yes)
3062 if test "${HAVE_XPM}" = "yes"; then
3070 if test "${HAVE_XPM}" = "yes"; then
3071 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3073 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3074 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3079 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3080 ### slightly different requirements wrt image libraries (it doesn't
3081 ### use -lXpm because it loads the xpm shared library dynamically at
3083 if test "${opsys}" = "mingw32"; then
3084 if test "${with_xpm}" != "no"; then
3085 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3089 if test "${HAVE_XPM}" = "yes"; then
3090 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3096 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3097 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3100 if test "${opsys}" = "mingw32"; then
3101 if test "${with_jpeg}" != "no"; then
3102 dnl Checking for jpeglib.h can lose because of a redefinition of
3104 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3106 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3107 if test "${HAVE_JPEG}" = "yes"; then
3108 AC_DEFINE(HAVE_JPEG)
3109 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3110 [#include <jpeglib.h>
3111 version=JPEG_LIB_VERSION
3113 [AC_DEFINE(HAVE_JPEG)],
3114 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3117 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3118 if test "${with_jpeg}" != "no"; then
3119 dnl Checking for jpeglib.h can lose because of a redefinition of
3121 AC_CHECK_HEADER(jerror.h,
3122 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3125 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3126 if test "${HAVE_JPEG}" = "yes"; then
3127 AC_DEFINE(HAVE_JPEG)
3128 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3129 [#include <jpeglib.h>
3130 version=JPEG_LIB_VERSION
3132 [AC_DEFINE(HAVE_JPEG)],
3133 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3136 if test "${HAVE_JPEG}" = "yes"; then
3144 if test "${with_zlib}" != "no"; then
3146 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3148 case $ac_cv_search_inflateEnd in
3149 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3152 if test "${HAVE_ZLIB}" = "yes"; then
3153 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3154 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3155 if test "${opsys}" = "mingw32"; then
3161 ### Use -lpng if available, unless `--with-png=no'.
3165 if test "${NS_IMPL_COCOA}" = yes; then
3167 elif test "${with_png}" != no; then
3168 # mingw32 loads the library dynamically.
3169 if test "$opsys" = mingw32; then
3170 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3171 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3172 AC_MSG_CHECKING([for png])
3173 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3174 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3175 # libpng-config does not work; configure by hand.
3176 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3177 # in /usr/include/libpng.
3178 if test -r /usr/include/libpng/png.h &&
3179 test ! -r /usr/include/png.h; then
3180 png_cflags=-I/usr/include/libpng
3188 CFLAGS="$CFLAGS $png_cflags"
3189 LIBS="$png_libs -lz -lm $LIBS"
3191 [AC_LANG_PROGRAM([[#include <png.h>]],
3192 [[return !png_get_channels (0, 0);]])],
3194 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3196 # $LIBPNG requires explicit -lz in some cases.
3197 # We don't know what those cases are, exactly, so play it safe and
3198 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3199 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3200 LIBPNG="$LIBPNG -lz"
3204 AC_MSG_RESULT([$HAVE_PNG])
3207 if test $HAVE_PNG = yes; then
3208 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3211 CFLAGS="$CFLAGS $PNG_CFLAGS"
3212 AC_CHECK_DECL([png_longjmp],
3214 [AC_DEFINE([PNG_DEPSTRUCT], [],
3215 [Define to empty to suppress deprecation warnings when building
3216 with --enable-gcc-warnings and with libpng versions before 1.5,
3217 which lack png_longjmp.])],
3223 AC_SUBST(PNG_CFLAGS)
3225 ### Use -ltiff if available, unless `--with-tiff=no'.
3226 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3229 if test "${opsys}" = "mingw32"; then
3230 if test "${with_tiff}" != "no"; then
3231 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3233 if test "${HAVE_TIFF}" = "yes"; then
3234 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3236 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3237 if test "${with_tiff}" != "no"; then
3238 AC_CHECK_HEADER(tiffio.h,
3240 # At least one tiff package requires the jpeg library.
3241 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3242 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3245 if test "${HAVE_TIFF}" = "yes"; then
3246 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3247 dnl FIXME -lz -lm, as per libpng?
3253 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3254 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3257 if test "${opsys}" = "mingw32"; then
3258 if test "${with_gif}" != "no"; then
3259 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3261 if test "${HAVE_GIF}" = "yes"; then
3262 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3264 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3265 || test "${HAVE_W32}" = "yes"; then
3266 AC_CHECK_HEADER(gif_lib.h,
3267 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3268 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3269 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3270 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3272 if test "$HAVE_GIF" = yes; then
3274 elif test "$HAVE_GIF" = maybe; then
3275 # If gif_lib.h but no libgif, try libungif.
3276 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3277 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3280 if test "${HAVE_GIF}" = "yes"; then
3281 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3286 dnl Check for required libraries.
3287 if test "${HAVE_X11}" = "yes"; then
3290 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3291 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3292 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3293 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3294 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3295 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3296 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3297 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3298 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3299 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3301 if test "X${MISSING}" != X; then
3302 AC_MSG_ERROR([The following required libraries were not found:
3304 Maybe some development libraries/packages are missing?
3305 If you don't want to link with them give
3307 as options to configure])
3311 ### Use -lgpm if available, unless `--with-gpm=no'.
3314 if test "${with_gpm}" != "no"; then
3315 AC_CHECK_HEADER(gpm.h,
3316 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3318 if test "${HAVE_GPM}" = "yes"; then
3319 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3325 dnl Check for malloc/malloc.h on darwin
3326 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3329 ### Use NeXTstep API to implement GUI.
3330 if test "${HAVE_NS}" = "yes"; then
3331 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3332 if test "${NS_IMPL_COCOA}" = "yes"; then
3333 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3335 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3336 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3337 # See also .m.o rule in Makefile.in */
3338 # FIXME: are all these flags really needed? Document here why. */
3339 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3340 ## Extra CFLAGS applied to src/*.m files.
3341 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3346 ### Use session management (-lSM -lICE) if available
3349 if test "${HAVE_X11}" = "yes"; then
3350 AC_CHECK_HEADER(X11/SM/SMlib.h,
3351 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3353 if test "${HAVE_X_SM}" = "yes"; then
3354 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3360 ### Use XRandr (-lXrandr) if available
3362 if test "${HAVE_X11}" = "yes"; then
3363 XRANDR_REQUIRED=1.2.2
3364 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3365 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3366 if test $HAVE_XRANDR = no; then
3367 # Test old way in case pkg-config doesn't have it (older machines).
3368 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3369 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3370 if test $HAVE_XRANDR = yes; then
3371 XRANDR_LIBS=-lXrandr
3374 if test $HAVE_XRANDR = yes; then
3375 SAVE_CFLAGS="$CFLAGS"
3377 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3378 LIBS="$XRANDR_LIBS $LIBS"
3379 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3380 CFLAGS="$SAVE_CFLAGS"
3383 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3386 AC_SUBST(XRANDR_CFLAGS)
3387 AC_SUBST(XRANDR_LIBS)
3389 ### Use Xinerama (-lXinerama) if available
3391 if test "${HAVE_X11}" = "yes"; then
3392 XINERAMA_REQUIRED=1.0.2
3393 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3394 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3395 if test $HAVE_XINERAMA = no; then
3396 # Test old way in case pkg-config doesn't have it (older machines).
3397 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3398 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3399 if test $HAVE_XINERAMA = yes; then
3400 XINERAMA_LIBS=-lXinerama
3403 if test $HAVE_XINERAMA = yes; then
3404 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3407 AC_SUBST(XINERAMA_CFLAGS)
3408 AC_SUBST(XINERAMA_LIBS)
3410 ### Use Xfixes (-lXfixes) if available
3412 if test "${HAVE_X11}" = "yes"; then
3413 XFIXES_REQUIRED=4.0.0
3414 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3415 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3416 if test $HAVE_XFIXES = no; then
3417 # Test old way in case pkg-config doesn't have it (older machines).
3418 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3419 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3420 if test $HAVE_XFIXES = yes; then
3421 XFIXES_LIBS=-lXfixes
3424 if test $HAVE_XFIXES = yes; then
3425 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3428 AC_SUBST(XFIXES_CFLAGS)
3429 AC_SUBST(XFIXES_LIBS)
3431 ### Use libxml (-lxml2) if available
3432 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3434 if test "${with_xml2}" != "no"; then
3435 ### I'm not sure what the version number should be, so I just guessed.
3436 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3437 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3438 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3439 SAVE_CPPFLAGS="$CPPFLAGS"
3440 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3441 AC_CHECK_HEADER(libxml/HTMLparser.h,
3442 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3443 [#include <libxml/HTMLparser.h>])])
3444 CPPFLAGS="$SAVE_CPPFLAGS"
3445 if test "${HAVE_LIBXML2}" = "yes"; then
3446 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3447 LIBXML2_LIBS="-lxml2"
3450 if test "${HAVE_LIBXML2}" = "yes"; then
3451 if test "${opsys}" != "mingw32"; then
3452 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3457 if test "${HAVE_LIBXML2}" = "yes"; then
3458 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3465 AC_SUBST(LIBXML2_LIBS)
3466 AC_SUBST(LIBXML2_CFLAGS)
3468 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3469 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3470 if test "${opsys}" = "mingw32"; then
3471 emacs_cv_netdb_declares_h_errno=yes
3473 AC_CACHE_CHECK(whether netdb declares h_errno,
3474 emacs_cv_netdb_declares_h_errno,
3475 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3476 [[return h_errno;]])],
3477 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3478 if test $emacs_cv_netdb_declares_h_errno = yes; then
3479 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3482 # Check for mail-locking functions in a "mail" library. Probably this should
3483 # have the same check as for liblockfile below.
3484 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3485 if test $have_mail = yes; then
3487 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3490 LIBS="$LIBS_MAIL $LIBS"
3491 AC_CHECK_FUNCS(touchlock)
3496 dnl Debian, at least:
3497 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3498 if test $have_lockfile = yes; then
3499 LIBS_MAIL=-llockfile
3500 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3502 # If we have the shared liblockfile, assume we must use it for mail
3503 # locking (e.g. Debian). If we couldn't link against liblockfile
3504 # (no liblockfile.a installed), ensure that we don't need to.
3505 dnl This works for files generally, not just executables.
3506 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3507 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3508 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3509 if test $ac_cv_prog_liblockfile = yes; then
3510 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3511 This probably means that movemail could lose mail.
3512 There may be a `development' package to install containing liblockfile.])
3515 AC_CHECK_HEADERS_ONCE(maillock.h)
3518 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3519 ## interlock access to the mail spool. The alternative is a lock file named
3520 ## /usr/spool/mail/$USER.lock.
3523 aix4-2) mail_lock="lockf" ;;
3525 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3527 ## On GNU/Linux systems, both methods are used by various mail programs.
3528 ## I assume most people are using newer mailers that have heard of flock.
3529 ## Change this if you need to.
3530 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3531 ## configure gets the right answers, and that means *NOT* using flock.
3532 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3533 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3534 ## Debian maintainer hasn't provided a clean fix for Emacs.
3535 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3536 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3537 ## correct logic. -- fx
3538 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3539 ## liblockfile is a Free Software replacement for libmail, used on
3540 ## Debian systems and elsewhere. -rfr.
3543 if test $have_mail = yes || test $have_lockfile = yes; then
3544 test $ac_cv_header_maillock_h = yes && mail_lock=no
3549 mail_lock="none-needed" ;;
3553 case "$mail_lock" in
3554 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3556 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3560 *) BLESSMAIL_TARGET="need-blessmail" ;;
3562 AC_SUBST(BLESSMAIL_TARGET)
3565 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3566 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3567 getrusage get_current_dir_name \
3568 lrand48 random rint \
3569 select getpagesize setlocale newlocale \
3570 getrlimit setrlimit shutdown getaddrinfo \
3571 pthread_sigmask strsignal setitimer \
3572 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3574 getpwent endpwent getgrent endgrent \
3575 cfmakeraw cfsetspeed copysign __executable_start log2)
3578 dnl No need to check for aligned_alloc and posix_memalign if using
3579 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3580 dnl Don't use these functions on Darwin as they are incompatible with
3582 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3583 && test "$opsys" != darwin; then
3584 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3587 dnl Cannot use AC_CHECK_FUNCS
3588 AC_CACHE_CHECK([for __builtin_unwind_init],
3589 emacs_cv_func___builtin_unwind_init,
3590 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3591 emacs_cv_func___builtin_unwind_init=yes,
3592 emacs_cv_func___builtin_unwind_init=no)])
3593 if test $emacs_cv_func___builtin_unwind_init = yes; then
3594 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3595 [Define to 1 if you have the `__builtin_unwind_init' function.])
3598 AC_CHECK_HEADERS_ONCE(sys/un.h)
3603 AC_CHECK_FUNCS(grantpt)
3605 # PTY-related GNU extensions.
3606 AC_CHECK_FUNCS(getpt posix_openpt)
3608 # Check this now, so that we will NOT find the above functions in ncurses.
3609 # That is because we have not set up to link ncurses in lib-src.
3610 # It's better to believe a function is not available
3611 # than to expect to find it in ncurses.
3612 # Also we need tputs and friends to be able to build at all.
3613 AC_MSG_CHECKING([for library containing tputs])
3614 # Run a test program that contains a call to tputs, a call that is
3615 # never executed. This tests whether a pre-'main' dynamic linker
3616 # works with the library. It's too much trouble to actually call
3617 # tputs in the test program, due to portability hassles. When
3618 # cross-compiling, assume the test program will run if it links.
3619 AC_DEFUN([tputs_link_source], [
3621 [[extern void tputs (const char *, int, int (*)(int));
3622 int main (int argc, char **argv)
3625 tputs (argv[0], 0, 0);
3629 if test "${opsys}" = "mingw32"; then
3632 # Maybe curses should be tried earlier?
3633 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3634 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3636 if test -z "$tputs_library"; then
3640 LIBS_TERMCAP=-l$tputs_library
3642 LIBS="$LIBS_TERMCAP $LIBS"
3644 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3645 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3647 if test "X$msg" != Xno; then
3652 AC_MSG_RESULT([$msg])
3653 if test "X$msg" = Xno; then
3654 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3655 The following libraries were tried (in order):
3656 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3657 Please try installing whichever of these libraries is most appropriate
3658 for your system, together with its header files.
3659 For example, a libncurses-dev(el) or similar package.])
3662 ## Use termcap instead of terminfo?
3663 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3665 ## FIXME? In the cases below where we unconditionally set
3666 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3667 ## if that was found above to have tputs.
3668 ## Should we use the gnu* logic everywhere?
3670 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3671 ## The ncurses library has been moved out of the System framework in
3672 ## Mac OS X 10.2. So if configure detects it, set the command-line
3673 ## option to use it.
3674 darwin) LIBS_TERMCAP="-lncurses" ;;
3676 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3679 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3680 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3681 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3682 [[#if __FreeBSD_version < 400000
3685 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3687 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3689 if test $emacs_cv_freebsd_terminfo = yes; then
3690 LIBS_TERMCAP="-lncurses"
3693 LIBS_TERMCAP="-ltermcap"
3703 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3705 LIBS_TERMCAP="-ltermcap"
3709 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3711 ## hpux: Make sure we get select from libc rather than from libcurses
3712 ## because libcurses on HPUX 10.10 has a broken version of select.
3713 ## We used to use -lc -lcurses, but this may be cleaner.
3714 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3715 # set that way, now it uses the default). Isn't this a contradiction?
3716 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3720 TERMCAP_OBJ=tparam.o
3721 if test $TERMINFO = yes; then
3722 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3723 TERMCAP_OBJ=terminfo.o
3725 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3726 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3728 AC_SUBST(LIBS_TERMCAP)
3729 AC_SUBST(TERMCAP_OBJ)
3731 # GNU/Linux-specific timer functions.
3732 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3734 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3736 [[timerfd_create (CLOCK_REALTIME,
3737 TFD_CLOEXEC | TFD_NONBLOCK);
3738 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3739 [emacs_cv_have_timerfd=yes],
3740 [emacs_cv_have_timerfd=no])])
3741 if test "$emacs_cv_have_timerfd" = yes; then
3742 AC_DEFINE([HAVE_TIMERFD], 1,
3743 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3746 # Alternate stack for signal handlers.
3747 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3748 [emacs_cv_alternate_stack],
3750 [AC_LANG_PROGRAM([[#include <signal.h>
3753 struct sigaction sa;
3754 ss.ss_sp = malloc (SIGSTKSZ);
3755 ss.ss_size = SIGSTKSZ;
3756 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3757 sigaltstack (&ss, 0);
3758 sigaction (SIGSEGV, &sa, 0);]])],
3759 [emacs_cv_alternate_stack=yes],
3760 [emacs_cv_alternate_stack=no])])
3762 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3763 # On Darwin, res_init appears not to be useful: see bug#562 and
3764 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3767 if test $opsys != darwin; then
3769 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3770 #include <arpa/nameser.h>
3771 #include <resolv.h>]],
3772 [[return res_init();]])],
3773 have_res_init=yes, have_res_init=no)
3774 if test "$have_res_init" = no; then
3776 LIBS="$LIBS -lresolv"
3777 AC_MSG_CHECKING(for res_init with -lresolv)
3778 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3779 #include <arpa/nameser.h>
3780 #include <resolv.h>]],
3781 [[return res_init();]])],
3782 have_res_init=yes, have_res_init=no)
3783 AC_MSG_RESULT($have_res_init)
3784 if test "$have_res_init" = yes ; then
3790 if test "$have_res_init" = yes; then
3791 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3795 # Do we need the Hesiod library to provide the support routines?
3796 dnl FIXME? Should we be skipping this on Darwin too?
3798 if test "$with_hesiod" != no ; then
3799 # Don't set $LIBS here -- see comments above. FIXME which comments?
3800 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3801 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3802 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3803 if test "$resolv" = yes ; then
3808 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3809 hesiod=yes, :, $RESOLVLIB)])
3811 if test x"$hesiod" = xyes; then
3817 # Do we need libresolv (due to res_init or Hesiod)?
3818 if test "$resolv" = yes && test $opsys != darwin; then
3825 # These tell us which Kerberos-related libraries to use.
3832 if test "${with_kerberos}" != no; then
3834 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3835 if test $have_com_err = yes; then
3836 COM_ERRLIB=-lcom_err
3837 LIBS="$COM_ERRLIB $LIBS"
3839 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3840 if test $have_crypto = yes; then
3842 LIBS="$CRYPTOLIB $LIBS"
3844 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3845 if test $have_k5crypto = yes; then
3846 CRYPTOLIB=-lk5crypto
3847 LIBS="$CRYPTOLIB $LIBS"
3849 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3850 if test $have_krb5=yes; then
3852 LIBS="$KRB5LIB $LIBS"
3854 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3855 if test "${with_kerberos5}" = no; then
3856 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3857 if test $have_des425 = yes; then
3859 LIBS="$DESLIB $LIBS"
3861 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3862 if test $have_des = yes; then
3864 LIBS="$DESLIB $LIBS"
3867 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3868 if test $have_krb4 = yes; then
3870 LIBS="$KRB4LIB $LIBS"
3872 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3873 if test $have_krb = yes; then
3875 LIBS="$KRB4LIB $LIBS"
3880 if test "${with_kerberos5}" != no; then
3881 AC_CHECK_HEADERS(krb5.h,
3882 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3883 [#include <krb5.h>])])
3885 AC_CHECK_HEADERS(krb.h,,
3886 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3887 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3889 AC_CHECK_HEADERS(com_err.h)
3893 AC_SUBST(COM_ERRLIB)
3899 AC_CHECK_HEADERS(valgrind/valgrind.h)
3901 AC_CHECK_FUNCS_ONCE(tzset)
3902 AC_MSG_CHECKING(whether localtime caches TZ)
3903 AC_CACHE_VAL(emacs_cv_localtime_cache,
3904 [if test x$ac_cv_func_tzset = xyes; then
3905 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3906 char TZ_GMT0[] = "TZ=GMT0";
3907 char TZ_PST8[] = "TZ=PST8";
3910 time_t now = time ((time_t *) 0);
3911 int hour_GMT0, hour_unset;
3912 if (putenv (TZ_GMT0) != 0)
3914 hour_GMT0 = localtime (&now)->tm_hour;
3916 hour_unset = localtime (&now)->tm_hour;
3917 if (putenv (TZ_PST8) != 0)
3919 if (localtime (&now)->tm_hour == hour_GMT0)
3922 if (localtime (&now)->tm_hour != hour_unset)
3925 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3926 [# If we have tzset, assume the worst when cross-compiling.
3927 emacs_cv_localtime_cache=yes])
3929 # If we lack tzset, report that localtime does not cache TZ,
3930 # since we can't invalidate the cache if we don't have tzset.
3931 emacs_cv_localtime_cache=no
3933 AC_MSG_RESULT($emacs_cv_localtime_cache)
3934 if test $emacs_cv_localtime_cache = yes; then
3935 AC_DEFINE(LOCALTIME_CACHE, 1,
3936 [Define to 1 if localtime caches TZ.])
3940 AC_CHECK_FUNC(socket, , ok_so_far=no)
3941 if test $ok_so_far = yes; then
3942 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3944 if test $ok_so_far = yes; then
3945 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3947 if test $ok_so_far = yes; then
3948 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3949 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3950 [Define to 1 if you have inet sockets.])
3955 AC_CHECK_FUNCS(snprintf)
3957 dnl Check for glib. This differs from other library checks in that
3958 dnl Emacs need not link to glib unless some other library is already
3959 dnl linking to glib. Although glib provides no facilities that Emacs
3960 dnl needs for its own purposes, when glib is present Emacs needs to
3961 dnl use primitives like g_main_context_query to avoid clashing with
3962 dnl glib at a low level.
3964 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3968 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3969 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3970 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3971 LIBS="$LIBS $GFILENOTIFY_LIBS"
3972 AC_MSG_CHECKING([whether GLib is linked in])
3973 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3976 [[g_print ("Hello world");]])],
3979 AC_MSG_RESULT([$links_glib])
3980 if test "${links_glib}" = "yes"; then
3981 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3982 if test "$HAVE_NS" = no;then
3990 dnl Adapted from Haible's version.
3991 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3992 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3993 [[char* cs = nl_langinfo(CODESET);]])],
3994 emacs_cv_langinfo_codeset=yes,
3995 emacs_cv_langinfo_codeset=no)
3997 if test $emacs_cv_langinfo_codeset = yes; then
3998 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3999 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4004 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4005 dnl how the tty code is related to POSIX and/or other versions of termios.
4006 dnl The following looks like a useful start.
4008 dnl AC_SYS_POSIX_TERMIOS
4009 dnl if test $ac_cv_sys_posix_termios = yes; then
4010 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4011 dnl and macros for terminal control.])
4012 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4015 dnl Turned on June 1996 supposing nobody will mind it.
4016 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4017 if test "${opsys}" != "mingw32"; then
4018 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4019 in the full name stands for the login id.])
4022 dnl Everybody supports this, except MS.
4023 dnl Seems like the kind of thing we should be testing for, though.
4024 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4025 if test "${opsys}" != "mingw32"; then
4026 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4029 dnl Everybody supports this, except MS-DOS.
4030 dnl Seems like the kind of thing we should be testing for, though.
4031 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4032 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4033 4.2-compatible sockets.])
4035 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4037 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4038 a null file, or a data sink.])
4039 if test "${opsys}" = "mingw32"; then
4040 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4042 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4045 if test "${opsys}" = "mingw32"; then
4050 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4051 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4052 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4053 dnl decides that a command-line argument to be passed to a MinGW program
4054 dnl is a PATH-style list of directories. But that heuristics plays it
4055 dnl safe, and only does the replacement when it is _absolutely_ sure it
4056 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4057 dnl which breaks in-tree builds. So we do this manually instead.
4058 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4059 dnl be computed as ':' in MSYS Bash.
4062 dnl Everybody supports this, except MS-DOS.
4063 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4065 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4068 AC_DEFINE(DIRECTORY_SEP, ['/'],
4069 [Character that separates directories in a file name.])
4071 if test "${opsys}" = "mingw32"; then
4072 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4073 [Returns true if character is a device separator.])
4075 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4076 [Returns true if character is a directory separator.])
4078 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4079 [Returns true if character is any form of separator.])
4081 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4082 [Returns true if character is a device separator.])
4084 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4085 [Returns true if character is a directory separator.])
4087 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4088 [Returns true if character is any form of separator.])
4091 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4095 dnl Unfortunately without libXmu we cannot support EditRes.
4096 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4097 AC_DEFINE(NO_EDITRES, 1)
4102 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4103 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4104 AC_DEFINE(NO_EDITRES, 1)
4110 irix6-5 | sol2* | unixware )
4111 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4112 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4113 dnl need the constant to dimension an array. So wire in the appropriate
4115 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4119 emacs_broken_SIGIO=no
4122 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4123 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4124 hpux* | irix6-5 | openbsd | sol2* | unixware )
4125 emacs_broken_SIGIO=yes
4129 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4130 dnl the way this system works, libc functions that return malloced
4131 dnl memory use the libc malloc implementation. Calling xfree or
4132 dnl xrealloc on the results of such functions results in a crash.
4134 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4135 dnl but that does not currently work on this system.
4137 dnl It is possible to completely override the malloc implementation on
4138 dnl AIX, but that involves putting the malloc functions in a shared
4139 dnl library and setting the MALLOCTYPE environment variable to point to
4140 dnl that shared library.
4142 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4143 dnl to avoid a crash just use the Emacs implementation for that function.
4145 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4146 dnl of this file, so that we do not check for get_current_dir_name
4147 dnl on AIX. But that might be fragile if something else ends
4148 dnl up testing for get_current_dir_name as a dependency.
4149 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4150 get_current_dir_name should not be used.])
4154 dnl Circumvent a bug in FreeBSD. In the following sequence of
4155 dnl writes/reads on a PTY, read(2) returns bogus data:
4157 dnl write(2) 1022 bytes
4158 dnl write(2) 954 bytes, get EAGAIN
4159 dnl read(2) 1024 bytes in process_read_output
4160 dnl read(2) 11 bytes in process_read_output
4162 dnl That is, read(2) returns more bytes than have ever been written
4163 dnl successfully. The 1033 bytes read are the 1022 bytes written
4164 dnl successfully after processing (for example with CRs added if the
4165 dnl terminal is set up that way which it is here). The same bytes will
4166 dnl be seen again in a later read(2), without the CRs.
4167 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4168 work around an issue when reading from a PTY.])
4174 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4175 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4180 darwin | dragonfly | freebsd | netbsd | openbsd )
4181 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4182 close a pty to make it a controlling terminal (it is already a
4183 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4187 dnl FIXME Surely we can test for this rather than hard-code it.
4189 netbsd | openbsd) sound_device="/dev/audio" ;;
4190 *) sound_device="/dev/dsp" ;;
4194 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4195 [Name of the default sound device.])
4198 dnl Emacs can read input using SIGIO and buffering characters itself,
4199 dnl or using CBREAK mode and making C-g cause SIGINT.
4200 dnl The choice is controlled by the variable interrupt_input.
4202 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4204 dnl Emacs uses the presence of the USABLE_SIGIO macro
4205 dnl to indicate whether or not signal-driven I/O is possible. It uses
4206 dnl INTERRUPT_INPUT to decide whether to use it by default.
4208 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4209 dnl CBREAK mode has two disadvantages
4210 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4211 dnl I hear that in system V this problem does not exist.
4212 dnl 2) Control-G causes output to be discarded.
4213 dnl I do not know whether this can be fixed in system V.
4215 dnl Another method of doing input is planned but not implemented.
4216 dnl It would have Emacs fork off a separate process
4217 dnl to read the input and send it to the true Emacs process
4220 darwin | gnu-linux | gnu-kfreebsd )
4221 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4226 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4227 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4228 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4229 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4230 dnl taking float or double parameters.
4232 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4233 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4234 file defines `NeedWidePrototypes' as `NO'.])
4239 dnl Used in process.c, this must be a loop, even if it only runs once.
4240 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4241 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4242 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4243 dnl trying suffixes 0-16.
4244 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4245 first PTY, if PTYs are supported.])
4246 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4247 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4248 end of a PTY, if non-standard.])
4249 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4250 end of a PTY, if non-standard.])
4254 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4255 dnl You allocate a pty by opening /dev/ptc to get the master side.
4256 dnl To get the name of the slave side, you just ttyname() the master side.
4257 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4258 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4262 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4263 dnl multi-line AC_DEFINEs are hard. :(
4264 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)])
4265 AC_DEFINE(PTY_NAME_SPRINTF, [])
4266 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4269 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4271 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4272 dnl Not used, because PTY_ITERATION is defined.
4273 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4274 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4275 dnl But we don't have to block SIGCHLD because it is blocked in the
4276 dnl implementation of grantpt.
4277 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4278 AC_DEFINE(PTY_NAME_SPRINTF, [])
4279 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4283 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4286 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4288 if test "x$ac_cv_func_grantpt" = xyes; then
4289 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4290 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4291 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4292 dnl to prevent sigchld_handler from intercepting the child's death.
4293 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); }])
4294 dnl if HAVE_POSIX_OPENPT
4295 if test "x$ac_cv_func_posix_openpt" = xyes; then
4296 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4297 AC_DEFINE(PTY_NAME_SPRINTF, [])
4299 elif test "x$ac_cv_func_getpt" = xyes; then
4300 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4301 AC_DEFINE(PTY_NAME_SPRINTF, [])
4303 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4306 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4311 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4312 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4313 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4317 dnl It looks like this cannot be right, because it is not a loop.
4318 dnl However, process.c actually does this:
4324 dnl which presumably makes it OK, since irix == sgi (?).
4325 dnl FIXME it seems like this special treatment is unnecessary?
4326 dnl Why can't irix use a single-trip loop like eg cygwin?
4327 AC_DEFINE(PTY_ITERATION, [])
4328 dnl Not used, because PTY_ITERATION is defined.
4329 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4330 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); }])
4331 dnl No need to get the pty name at all.
4332 AC_DEFINE(PTY_NAME_SPRINTF, [])
4333 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4334 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4338 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4339 dnl from intercepting that death. If any child but grantpt's should die
4340 dnl within, it should be caught after sigrelse(2).
4341 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); }])
4345 dnl Comments are as per sol2*.
4346 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); }])
4353 dnl This change means that we don't loop through allocate_pty too
4354 dnl many times in the (rare) event of a failure.
4355 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4356 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4357 dnl Push various streams modules onto a PTY channel. Used in process.c.
4358 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.])
4363 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4364 "typing" a signal character on the pty.])
4367 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4368 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4369 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4370 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4373 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4374 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4375 gnu-linux | gnu-kfreebsd )
4377 AC_MSG_CHECKING([for signals via characters])
4378 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4379 #include <linux/version.h>
4380 #if LINUX_VERSION_CODE < 0x20400
4381 # error "Linux version too old"
4383 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4385 AC_MSG_RESULT([$emacs_signals_via_chars])
4386 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4391 AH_TEMPLATE(TAB3, [Undocumented.])
4394 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4396 gnu | dragonfly | freebsd | netbsd | openbsd )
4397 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4398 AC_DEFINE(TAB3, OXTABS)
4401 gnu-linux | gnu-kfreebsd )
4402 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4406 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4407 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4408 [Mark a secondary stack, like the register stack on the ia64.]), [])
4412 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4413 run_time_remap; for HPUX.])
4418 dnl This won't be used automatically yet. We also need to know, at least,
4419 dnl that the stack is continuous.
4420 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4421 registers relevant for conservative garbage collection in the jmp_buf.])
4425 dnl Not all the architectures are tested, but there are Debian packages
4426 dnl for SCM and/or Guile on them, so the technique must work. See also
4427 dnl comments in alloc.c concerning setjmp and gcc.
4428 dnl Fixme: it's probably safe to just use the GCC conditional below.
4429 gnu-linux | gnu-kfreebsd )
4430 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4431 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4432 || defined __alpha__ || defined __mips__ || defined __s390__ \
4433 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4434 || defined __ia64__ || defined __sh__
4437 # error "setjmp not known to work on this arch"
4439 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4444 if test x$GCC = xyes; then
4445 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4446 AC_DEFINE(GC_SETJMP_WORKS, 1)
4449 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4450 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4451 AC_DEFINE(GC_SETJMP_WORKS, 1)
4456 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4457 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4460 [[#include <setjmp.h>
4462 # define _longjmp longjmp
4467 _longjmp (j, 1);]])],
4468 [emacs_cv_func__setjmp=yes],
4469 [emacs_cv_func__setjmp=no])])
4470 if test $emacs_cv_func__setjmp = yes; then
4471 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4474 # We need to preserve signal mask to handle C stack overflows.
4475 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4478 [[#include <setjmp.h>
4481 if (! sigsetjmp (j, 1))
4482 siglongjmp (j, 1);]])],
4483 [emacs_cv_func_sigsetjmp=yes],
4484 [emacs_cv_func_sigsetjmp=no])])
4485 if test $emacs_cv_func_sigsetjmp = yes; then
4486 AC_DEFINE([HAVE_SIGSETJMP], 1,
4487 [Define to 1 if sigsetjmp and siglongjmp work.])
4490 # We need all of these features to handle C stack overflows.
4491 if test "$ac_cv_header_sys_resource_h" = "yes" -a \
4492 "$ac_cv_func_getrlimit" = "yes" -a \
4493 "$emacs_cv_func_sigsetjmp" = "yes" -a \
4494 "$emacs_cv_alternate_stack" = yes; then
4495 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4496 [Define to 1 if C stack overflow can be handled in some cases.])
4501 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4502 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4503 dnl and this is all we need.
4504 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4511 dnl Used in xfaces.c.
4512 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4513 some systems, where it requires time.h.])
4518 dnl Define symbols to identify the version of Unix this is.
4519 dnl Define all the symbols that apply correctly.
4520 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4521 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4522 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4523 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4528 dnl This symbol should be defined on AIX Version 3 ???????
4529 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4531 # error "_AIX not defined"
4533 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4537 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4541 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4542 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4543 dnl distinguish OS X from pure Darwin.
4544 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4547 gnu-linux | gnu-kfreebsd )
4549 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4554 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4559 AC_DEFINE(USG5_4, [])
4560 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4564 AC_DEFINE(DOS_NT, [])
4565 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4566 if test "x$ac_enable_checking" != "x" ; then
4567 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4573 AC_DEFINE(USG5_4, [])
4574 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4579 AC_DEFINE(USG5_4, [])
4583 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4586 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4587 emacs_cv_usable_FIONREAD=no
4591 emacs_cv_usable_FIONREAD=yes
4596 [AC_LANG_PROGRAM([[#include <sys/types.h>
4597 #include <sys/ioctl.h>
4599 # include <sys/filio.h>
4602 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4603 [emacs_cv_usable_FIONREAD=yes],
4604 [emacs_cv_usable_FIONREAD=no])
4607 if test $emacs_cv_usable_FIONREAD = yes; then
4608 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4610 if test $emacs_broken_SIGIO = no; then
4611 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4613 [AC_LANG_PROGRAM([[#include <fcntl.h>
4616 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4617 [emacs_cv_usable_SIGIO=yes],
4618 [emacs_cv_usable_SIGIO=no])],
4619 [emacs_cv_usable_SIGIO=yes],
4620 [emacs_cv_usable_SIGIO=no])
4621 if test $emacs_cv_usable_SIGIO = yes; then
4622 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4629 dnl It works to open the pty's tty in the parent (Emacs), then
4630 dnl close and reopen it in the child.
4631 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4632 works to open a pty's tty in the parent process, then close and
4633 reopen it in the child.])
4637 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4638 use VSUSP instead of VSWTCH.])
4642 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4647 # Set up the CFLAGS for real compilation, so we can substitute it.
4648 CFLAGS="$REAL_CFLAGS"
4649 CPPFLAGS="$REAL_CPPFLAGS"
4652 ## Hack to detect a buggy GCC version.
4653 if test "x$GCC" = xyes \
4654 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4655 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4656 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4657 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4660 version=$PACKAGE_VERSION
4662 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4663 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4664 [Short copyright string for this version of Emacs.])
4667 ### Specify what sort of things we'll be editing into Makefile and config.h.
4668 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4670 AC_SUBST(configuration)
4675 AC_SUBST(exec_prefix)
4678 AC_SUBST(sharedstatedir)
4679 AC_SUBST(libexecdir)
4683 AC_SUBST(standardlisppath)
4684 AC_SUBST(locallisppath)
4686 AC_SUBST(x_default_search_path)
4688 AC_SUBST(archlibdir)
4693 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4694 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4695 ## end of LIBX_BASE, but nothing ever set it.
4696 AC_SUBST(LD_SWITCH_X_SITE)
4697 AC_SUBST(C_SWITCH_X_SITE)
4698 AC_SUBST(GNUSTEP_CFLAGS)
4700 ## Used in lwlib/Makefile.in.
4701 AC_SUBST(X_TOOLKIT_TYPE)
4703 AC_SUBST(ns_appbindir)
4704 AC_SUBST(ns_appresdir)
4706 AC_SUBST(GNU_OBJC_CFLAGS)
4707 AC_SUBST(OTHER_FILES)
4709 if test -n "${term_header}"; then
4710 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4711 [Define to the header for the built-in window system.])
4714 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4715 [Define to the canonical Emacs configuration name.])
4716 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4717 [Define to the options passed to configure.])
4718 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4719 define this to include extra configuration information.])
4723 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4730 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4731 AC_DEFINE(HAVE_X_WINDOWS, 1,
4732 [Define to 1 if you want to use the X window system.])
4734 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4736 if test "$HAVE_XFT" = "yes"; then
4737 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4738 elif test "$HAVE_FREETYPE" = "yes"; then
4739 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4749 if test "${USE_X_TOOLKIT}" != "none" ; then
4751 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4752 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4753 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4754 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4755 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4759 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4760 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4764 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4765 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4766 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4770 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4771 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4774 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4777 AC_SUBST(WIDGET_OBJ)
4780 case "$USE_X_TOOLKIT" in
4781 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4782 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4783 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4785 AC_SUBST(TOOLKIT_LIBW)
4787 if test "${opsys}" != "mingw32"; then
4788 if test "$USE_X_TOOLKIT" = "none"; then
4789 LIBXT_OTHER="\$(LIBXSM)"
4791 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4794 AC_SUBST(LIBXT_OTHER)
4796 if test "${HAVE_X11}" = "yes" ; then
4797 AC_DEFINE(HAVE_X11, 1,
4798 [Define to 1 if you want to use version 11 of X windows.])
4799 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4803 AC_SUBST(LIBX_OTHER)
4805 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4807 elif test "$USE_X_TOOLKIT" = none; then
4808 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4810 LIBXMENU='$(lwlibdir)/liblw.a'
4814 if test "${GNU_MALLOC}" = "yes" ; then
4815 AC_DEFINE(GNU_MALLOC, 1,
4816 [Define to 1 if you want to use the GNU memory allocator.])
4820 if test "${REL_ALLOC}" = "yes" ; then
4821 AC_DEFINE(REL_ALLOC, 1,
4822 [Define REL_ALLOC if you want to use the relocating allocator for
4825 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4827 AC_SUBST(RALLOC_OBJ)
4829 if test "$opsys" = "cygwin"; then
4830 CYGWIN_OBJ="sheap.o cygw32.o"
4831 ## Cygwin differs because of its unexec().
4833 POST_ALLOC_OBJ=lastfile.o
4834 elif test "$opsys" = "mingw32"; then
4837 POST_ALLOC_OBJ=lastfile.o
4840 PRE_ALLOC_OBJ=lastfile.o
4843 AC_SUBST(CYGWIN_OBJ)
4844 AC_SUBST(PRE_ALLOC_OBJ)
4845 AC_SUBST(POST_ALLOC_OBJ)
4847 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4848 dnl verbatim defined above. The tricky name is apropos, as this hack
4849 dnl makes Fortify go sour!
4850 AH_VERBATIM([FORTIFY_SOUR],
4851 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4852 The workaround disables some useful run-time checking, so it
4853 should be conditional to the platforms with the performance bug.
4854 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4855 #if defined __APPLE__ && defined __GNUC__
4856 # ifndef _DONT_USE_CTYPE_INLINE_
4857 # define _DONT_USE_CTYPE_INLINE_
4859 # ifndef _FORTIFY_SOURCE
4860 # define _FORTIFY_SOURCE 0
4865 # If user asks to omit features, disable optional features that gnulib
4866 # might otherwise enable.
4867 if test "$with_features" = no && test "$enable_acl" != yes; then
4871 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4872 # it temporarily reverts them to their pre-pkg-config values,
4873 # because gnulib needs to work with both src (which uses the
4874 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4875 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4876 # and it therefore needs to run in an environment where LIBS does not
4877 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4878 # for some package unrelated to lib-src.
4881 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4882 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4883 gl_ASSERT_NO_GNULIB_POSIXCHECK
4884 gl_ASSERT_NO_GNULIB_TESTS
4889 if test "${opsys}" = "mingw32"; then
4890 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4891 # Remove unneeded switches from the value of CC that goes to Makefiles
4892 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4896 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4899 ## The -headerpad option tells ld (see man page) to leave room at the
4900 ## end of the header for adding load commands. Needed for dumping.
4901 ## 0x690 is the total size of 30 segment load commands (at 56
4902 ## each); under Cocoa 31 commands are required.
4903 if test "$HAVE_NS" = "yes"; then
4904 libs_nsgui="-framework AppKit"
4905 if test "$NS_IMPL_COCOA" = "yes"; then
4906 libs_nsgui="$libs_nsgui -framework IOKit"
4913 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4915 ## This is here because src/Makefile.in did some extra fiddling around
4916 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4917 ## LD_SWITCH_SYSTEM_TEMACS instead,
4918 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4919 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4922 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4923 ## find X at run-time.
4924 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4925 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4926 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4927 ## had different values in configure (in ac_link) and src/Makefile.in.
4928 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4929 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4932 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4933 case "$canonical" in
4934 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4935 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4939 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4941 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4944 if test x$ac_enable_profiling != x ; then
4946 *freebsd | gnu-linux) ;;
4947 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4951 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4953 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4955 ## Common for all window systems
4956 if test "$window_system" != "none"; then
4957 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4958 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4959 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4962 AC_SUBST(WINDOW_SYSTEM_OBJ)
4964 AH_TOP([/* GNU Emacs site configuration template file.
4966 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4967 Free Software Foundation, Inc.
4969 This file is part of GNU Emacs.
4971 GNU Emacs is free software: you can redistribute it and/or modify
4972 it under the terms of the GNU General Public License as published by
4973 the Free Software Foundation, either version 3 of the License, or
4974 (at your option) any later version.
4976 GNU Emacs is distributed in the hope that it will be useful,
4977 but WITHOUT ANY WARRANTY; without even the implied warranty of
4978 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4979 GNU General Public License for more details.
4981 You should have received a copy of the GNU General Public License
4982 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4985 /* No code in Emacs #includes config.h twice, but some bits of code
4986 intended to work with other packages as well (like gmalloc.c)
4987 think they can include it as many times as they like. */
4988 #ifndef EMACS_CONFIG_H
4989 #define EMACS_CONFIG_H
4992 AH_BOTTOM([#include <conf_post.h>
4994 #endif /* EMACS_CONFIG_H */
5003 #### Report on what we decided to do.
5004 #### Report GTK as a toolkit, even if it doesn't use Xt.
5005 #### It makes printing result more understandable as using GTK sets
5006 #### toolkit_scroll_bars to yes by default.
5007 if test "${HAVE_GTK}" = "yes"; then
5008 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5011 if test $USE_ACL -ne 0; then
5012 ACL_SUMMARY="yes $LIB_ACL"
5018 Configured for \`${canonical}'.
5020 Where should the build process find the source code? ${srcdir}
5021 What compiler should emacs be built with? ${CC} ${CFLAGS}
5022 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5023 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5024 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5025 What window system should Emacs use? ${window_system}
5026 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5028 if test -n "${x_includes}"; then
5029 echo " Where do we find X Windows header files? ${x_includes}"
5031 echo " Where do we find X Windows header files? Standard dirs"
5033 if test -n "${x_libraries}"; then
5034 echo " Where do we find X Windows libraries? ${x_libraries}"
5036 echo " Where do we find X Windows libraries? Standard dirs"
5040 emacs_config_features=
5041 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
5042 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5046 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5047 *) eval val=\${HAVE_$opt} ;;
5049 test x"$val" = xno && continue
5050 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5053 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5054 [Summary of some of the main features enabled by configure.])
5056 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5057 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5058 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5059 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5060 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5061 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5062 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5063 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5065 echo " Does Emacs support sound? ${HAVE_SOUND}"
5067 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5068 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5069 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5070 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5071 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5072 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5073 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5074 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5075 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5077 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5078 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5079 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5080 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5081 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5083 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5086 if test -n "${EMACSDATA}"; then
5087 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5089 if test -n "${EMACSDOC}"; then
5090 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5095 if test "$HAVE_NS" = "yes"; then
5097 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5098 The installed application will go to nextstep/Emacs.app and can be
5099 run or moved from there."
5100 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5101 echo "The application will be fully self-contained."
5103 echo "The lisp resources for the application will be installed under ${prefix}.
5104 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5105 to run if these resources are not installed."
5110 if test "${opsys}" = "cygwin"; then
5112 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5118 # Remove any trailing slashes in these variables.
5119 [test "${prefix}" != NONE &&
5120 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5121 test "${exec_prefix}" != NONE &&
5122 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5124 if test "$HAVE_NS" = "yes"; then
5125 if test "$NS_IMPL_GNUSTEP" = yes; then
5126 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5127 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5128 ns_check_file=Resources/Info-gnustep.plist
5130 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5131 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5132 ns_check_file=Contents/Info.plist
5134 AC_SUBST(ns_check_file)
5137 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5138 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5139 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5140 dnl (else you get "no `Makefile.am' found for any configure output").
5141 dnl This will work, but you get a config.status that is not quite right
5142 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5143 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5144 dnl it seems better to just live with the duplication.
5145 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5147 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5148 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5149 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5150 leim/Makefile nextstep/Makefile nt/Makefile])
5152 dnl test/ is not present in release tarfiles.
5153 opt_makefile=test/automated/Makefile
5155 if test -f "$srcdir/$opt_makefile.in"; then
5156 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5157 dnl Again, it's best not to use a variable. Though you can add
5158 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5159 AC_CONFIG_FILES([test/automated/Makefile])
5163 dnl The admin/ directory used to be excluded from tarfiles.
5164 if test -d $srcdir/admin; then
5165 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5166 AC_CONFIG_FILES([admin/unidata/Makefile])
5167 AC_CONFIG_FILES([admin/grammars/Makefile])
5171 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5173 AC_SUBST(SUBDIR_MAKEFILES_IN)
5175 dnl You might wonder (I did) why epaths.h is generated by running make,
5176 dnl rather than just letting configure generate it from epaths.in.
5177 dnl One reason is that the various paths are not fully expanded (see above);
5178 dnl eg gamedir=${prefix}/var/games/emacs.
5179 dnl Secondly, the GNU Coding standards require that one should be able
5180 dnl to run `make prefix=/some/where/else' and override the values set
5181 dnl by configure. This also explains the `move-if-change' test and
5182 dnl the use of force in the `epaths-force' rule in Makefile.in.
5183 AC_CONFIG_COMMANDS([src/epaths.h], [
5184 if test "${opsys}" = "mingw32"; then
5185 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5187 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5188 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5189 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5191 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5192 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5194 AC_CONFIG_COMMANDS([src/.gdbinit], [
5195 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5196 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5202 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])