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, 25.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
135 dnl Fairly arbitrary, older versions might work too.
136 AM_INIT_AUTOMAKE(1.11)
138 dnl Canonicalize the configuration name.
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 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
155 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
160 dnl Support for --program-prefix, --program-suffix and
161 dnl --program-transform-name options
164 dnl It is important that variables on the RHS not be expanded here,
165 dnl hence the single quotes. This is per the GNU coding standards, see
166 dnl (autoconf) Installation Directory Variables
167 dnl See also epaths.h below.
168 lispdir='${datadir}/emacs/${version}/lisp'
169 standardlisppath='${lispdir}'
170 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
171 '${datadir}/emacs/site-lisp'
172 lisppath='${locallisppath}:${standardlisppath}'
173 etcdir='${datadir}/emacs/${version}/etc'
174 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
175 etcdocdir='${datadir}/emacs/${version}/etc'
176 gamedir='${localstatedir}/games/emacs'
178 dnl Special option to disable the most of other options.
180 [AS_HELP_STRING([--without-all],
181 [omit almost all features and build
182 small executable with minimal dependencies])],
183 [with_features=$withval],
186 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
187 dnl Create a new --with option that defaults to being disabled.
188 dnl NAME is the base name of the option. The shell variable with_NAME
189 dnl will be set to either the user's value (if the option is
190 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
191 dnl option is not specified). Note that the shell variable name is
192 dnl constructed as autoconf does, by replacing non-alphanumeric
193 dnl characters with "_".
194 dnl HELP-STRING is the help text for the option.
195 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
196 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
197 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
200 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
201 dnl Create a new --with option that defaults to $with_features.
202 dnl NAME is the base name of the option. The shell variable with_NAME
203 dnl will be set either to 'no' (for a plain --without-NAME) or to
204 dnl 'yes' (if the option is not specified). Note that the shell
205 dnl variable name is constructed as autoconf does, by replacing
206 dnl non-alphanumeric characters with "_".
207 dnl HELP-STRING is the help text for the option.
208 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
209 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
210 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
213 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
214 if test "$with_pop" = yes; then
215 AC_DEFINE(MAIL_USE_POP)
217 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
219 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
220 if test "$with_kerberos" != no; then
223 AH_TEMPLATE(KERBEROS,
224 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
226 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
227 if test "${with_kerberos5}" != no; then
228 if test "${with_kerberos}" = no; then
232 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
235 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
236 dnl FIXME hesiod support may not be present, so it seems like an error
237 dnl to define, or at least use, this unconditionally.
238 if test "$with_hesiod" != no; then
239 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
242 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
243 if test "$with_mmdf" != no; then
244 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
247 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
248 if test "$with_mail_unlink" != no; then
249 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
252 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
253 [string giving default POP mail host])],
254 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
256 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
257 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
258 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
259 [ case "${withval}" in
260 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
261 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
262 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
267 [with_sound=$with_features])
269 dnl FIXME currently it is not the last.
270 dnl This should be the last --with option, because --with-x is
271 dnl added later on when we find the file name of X, and it's best to
272 dnl keep them together visually.
273 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
274 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
275 [ case "${withval}" in
276 y | ye | yes ) val=gtk ;;
278 l | lu | luc | luci | lucid ) val=lucid ;;
279 a | at | ath | athe | athen | athena ) val=athena ;;
280 m | mo | mot | moti | motif ) val=motif ;;
281 g | gt | gtk ) val=gtk ;;
285 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
286 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
287 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
288 `athena' and `lucid' are synonyms.])
294 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
295 if test "$with_wide_int" = yes; then
296 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
299 dnl _ON results in a '--without' option in the --help output, so
300 dnl the help text should refer to "don't compile", etc.
301 with_xpm_set=${with_xpm+set}
302 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
303 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
304 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
305 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
306 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
307 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
308 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
309 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
311 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
312 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
313 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
315 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
316 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
317 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
318 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
319 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
321 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
322 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
323 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
324 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
325 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
326 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
327 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
329 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
330 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
331 [ case "${withval}" in
332 y | ye | yes ) val=yes ;;
334 g | gf | gfi | gfil | gfile ) val=gfile ;;
335 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
336 w | w3 | w32 ) val=w32 ;;
337 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
338 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
339 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
340 otherwise for the first of `gfile' or `inotify' that is usable.])
343 with_file_notification=$val
345 [with_file_notification=$with_features])
347 ## For the times when you want to build Emacs but don't have
348 ## a suitable makeinfo, and can live without the manuals.
349 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
350 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
352 ## This might be a 'configure' arg.
353 AC_SUBST([ACLOCAL_PATH])
355 ## Makefile.in needs the cache file name.
358 ## This is an option because I do not know if all info/man support
359 ## compressed files, nor how to test if they do so.
360 OPTION_DEFAULT_ON([compress-install],
361 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
362 make GZIP_PROG= install])
364 AC_ARG_WITH(gameuser,dnl
365 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
366 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
367 && gameuser="${with_gameuser}"
368 test "X$gameuser" = X && gameuser=games
370 AC_ARG_WITH([gnustep-conf],dnl
371 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
372 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
373 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
374 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
375 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
376 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
378 AC_ARG_ENABLE(ns-self-contained,
379 [AS_HELP_STRING([--disable-ns-self-contained],
380 [disable self contained build under NeXTstep])],
381 EN_NS_SELF_CONTAINED=$enableval,
382 EN_NS_SELF_CONTAINED=yes)
384 AC_ARG_ENABLE(locallisppath,
385 [AS_HELP_STRING([--enable-locallisppath=PATH],
386 [directories Emacs should search for lisp files specific
388 if test "${enableval}" = "no"; then
390 elif test "${enableval}" != "yes"; then
391 locallisppath=${enableval}
394 AC_ARG_ENABLE(checking,
395 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
396 [enable expensive run-time checks. With LIST,
397 enable only specific categories of checks.
398 Categories are: all,yes,no.
399 Flags are: stringbytes, stringoverrun, stringfreelist,
400 xmallocoverrun, conslist, glyphs])],
401 [ac_checking_flags="${enableval}"],[])
402 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
403 for check in $ac_checking_flags
406 # these set all the flags to specific states
407 yes) ac_enable_checking=1 ;;
408 no) ac_enable_checking= ;
409 ac_gc_check_stringbytes= ;
410 ac_gc_check_string_overrun= ;
411 ac_gc_check_string_free_list= ;
412 ac_xmalloc_overrun= ;
413 ac_gc_check_cons_list= ;
415 all) ac_enable_checking=1 ;
416 ac_gc_check_stringbytes=1 ;
417 ac_gc_check_string_overrun=1 ;
418 ac_gc_check_string_free_list=1 ;
419 ac_xmalloc_overrun=1 ;
420 ac_gc_check_cons_list=1 ;
422 # these enable particular checks
423 stringbytes) ac_gc_check_stringbytes=1 ;;
424 stringoverrun) ac_gc_check_string_overrun=1 ;;
425 stringfreelist) ac_gc_check_string_free_list=1 ;;
426 xmallocoverrun) ac_xmalloc_overrun=1 ;;
427 conslist) ac_gc_check_cons_list=1 ;;
428 glyphs) ac_glyphs_debug=1 ;;
429 *) AC_MSG_ERROR(unknown check category $check) ;;
434 if test x$ac_enable_checking != x ; then
435 AC_DEFINE(ENABLE_CHECKING, 1,
436 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
438 if test x$ac_gc_check_stringbytes != x ; then
439 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
440 [Define this temporarily to hunt a bug. If defined, the size of
441 strings is redundantly recorded in sdata structures so that it can
442 be compared to the sizes recorded in Lisp strings.])
444 if test x$ac_gc_check_string_overrun != x ; then
445 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
446 [Define this to check for short string overrun.])
448 if test x$ac_gc_check_string_free_list != x ; then
449 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
450 [Define this to check the string free list.])
452 if test x$ac_xmalloc_overrun != x ; then
453 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
454 [Define this to check for malloc buffer overrun.])
456 if test x$ac_gc_check_cons_list != x ; then
457 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
458 [Define this to check for errors in cons list.])
460 if test x$ac_glyphs_debug != x ; then
461 AC_DEFINE(GLYPH_DEBUG, 1,
462 [Define this to enable glyphs debugging code.])
465 AC_ARG_ENABLE(check-lisp-object-type,
466 [AS_HELP_STRING([--enable-check-lisp-object-type],
467 [enable compile time checks for the Lisp_Object data type.
468 This is useful for development for catching certain types of bugs.])],
469 if test "${enableval}" != "no"; then
470 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
471 [Define this to enable compile time checks for the Lisp_Object data type.])
475 dnl The name of this option is unfortunate. It predates, and has no
476 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
477 dnl Actually, it stops it working.
478 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
479 AC_ARG_ENABLE(profiling,
480 [AS_HELP_STRING([--enable-profiling],
481 [build emacs with low-level, gprof profiling support.
482 Mainly useful for debugging Emacs itself. May not work on
483 all platforms. Stops profiler.el working.])],
484 [ac_enable_profiling="${enableval}"],[])
485 if test x$ac_enable_profiling != x ; then
486 PROFILING_CFLAGS="-DPROFILING=1 -pg"
490 AC_SUBST(PROFILING_CFLAGS)
492 AC_ARG_ENABLE(autodepend,
493 [AS_HELP_STRING([--enable-autodepend],
494 [automatically generate dependencies to .h-files.
495 Requires gcc, enabled if found.])],
496 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
498 AC_ARG_ENABLE(gtk-deprecation-warnings,
499 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
500 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
501 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
503 dnl This used to use changequote, but, apart from `changequote is evil'
504 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
505 dnl the great gob of text. Thus it's not processed for possible expansion.
506 dnl Just make sure the brackets remain balanced.
508 dnl Since Emacs can't find matching pairs of quotes, boundaries are
509 dnl indicated by comments.
513 ### If you add support for a new configuration, add code to this
514 ### switch statement to recognize your configuration name and select
515 ### the appropriate opsys.
517 ### As far as handling version numbers on operating systems is
518 ### concerned, make sure things will fail in a fixable way. If
519 ### /etc/MACHINES doesn't say anything about version numbers, be
520 ### prepared to handle anything reasonably. If version numbers
521 ### matter, be sure /etc/MACHINES says something about it.
524 case "${canonical}" in
526 ## GNU/Linux and similar ports
541 ## FreeBSD kernel + glibc based userland
552 *-*-openbsd* | *-*-mirbsd* )
556 ## Apple Darwin / Mac OS X
558 case "${canonical}" in
565 ## Use fink packages if available.
566 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
567 ## if test -d /sw/include && test -d /sw/lib; then
568 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
569 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
578 ## HP 9000 series 700 and 800, running HP/UX
582 hppa*-hp-hpux1[1-9]* )
584 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
588 rs6000-ibm-aix4.[23]* )
591 powerpc-ibm-aix4.[23]* )
594 rs6000-ibm-aix[56]* )
597 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
601 ## Silicon Graphics machines
605 # Without defining _LANGUAGE_C, things get masked out in the headers
606 # so that, for instance, grepping for `free' in stdlib.h fails and
607 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
608 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
613 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
614 | x86_64-*-solaris2* | x86_64-*-sunos5*)
615 case "${canonical}" in
617 amd64-*-*|x86_64-*-*) ;;
621 case "${canonical}" in
622 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
624 emacs_check_sunpro_c=yes
626 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
627 ## Note that Emacs 23.1's NEWS said the following would be dropped.
628 *-sunos5.6* | *-solaris2.6* )
632 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
633 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
635 emacs_check_sunpro_c=yes
638 ## Watch out for a compiler that we know will not work.
639 case "${canonical}" in
640 *-solaris* | *-sunos5* )
641 if [ "x$CC" = x/usr/ucb/cc ]; then
642 ## /usr/ucb/cc doesn't work;
643 ## we should find some other compiler that does work.
651 ## Intel 386 machines where we don't care about the manufacturer.
653 case "${canonical}" in
654 *-darwin* ) opsys=darwin ;;
657 # MinGW overrides and adds some system headers in nt/inc.
658 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
660 *-sysv4.2uw* ) opsys=unixware ;;
661 *-sysv5uw* ) opsys=unixware ;;
662 *-sysv5OpenUNIX* ) opsys=unixware ;;
663 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
669 case "${canonical}" in
672 # MinGW overrides and adds some system headers in nt/inc.
673 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
675 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
684 ### If the code above didn't choose an operating system, just choose
685 ### an operating system based on the configuration name. You really
686 ### only want to use this when you have no idea what the right
687 ### operating system is; if you know what operating systems a machine
688 ### runs, it's cleaner to make it explicit in the case statement
690 if test x"${opsys}" = x; then
691 case "${canonical}" in
692 *-gnu* ) opsys=gnu ;;
702 if test $unported = yes; then
703 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
704 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
705 Check `etc/MACHINES' for recognized configuration names.])
709 #### Choose a compiler.
711 dnl Don't bother to test for C89.
712 AC_DEFUN([_AC_PROG_CC_C89], [$2])
714 dnl Sets GCC=yes if using gcc.
715 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
716 if test -n "$XCRUN"; then
717 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
718 test -n "$AR" && export AR
721 dnl Emacs needs C99 or later.
726 if test x$GCC = xyes; then
727 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
729 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
732 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
733 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
734 dnl that clash with MinGW.
735 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
737 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
738 AC_DEFUN([gl_CRYPTO_CHECK])
739 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
740 # as we don't use them.
741 AC_DEFUN([gl_FCNTL_O_FLAGS])
743 # Initialize gnulib right after choosing the compiler.
744 dnl Amongst other things, this sets AR and ARFLAGS.
747 if test "$ac_test_CFLAGS" != set; then
748 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
749 # if -g3 works and the user does not specify CFLAGS.
750 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
753 emacs_g3_CFLAGS='-g3';;
755 emacs_g3_CFLAGS='-g3 -O2';;
759 if test -n "$emacs_g3_CFLAGS"; then
760 emacs_save_CFLAGS=$CFLAGS
761 CFLAGS=$emacs_g3_CFLAGS
762 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
763 [emacs_cv_prog_cc_g3],
764 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
765 [emacs_cv_prog_cc_g3=yes],
766 [emacs_cv_prog_cc_g3=no])])
767 if test $emacs_cv_prog_cc_g3 != yes; then
768 CFLAGS=$emacs_save_CFLAGS
770 if test $opsys = mingw32; then
771 CFLAGS="$CFLAGS -gdwarf-2"
778 # No optimization flag was inferred for this non-GCC compiler.
779 # Try -O. This is needed for xlc on AIX; see Bug#14258.
780 emacs_save_CFLAGS=$CFLAGS
781 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
783 AC_CACHE_CHECK([whether $CC accepts -O],
784 [emacs_cv_prog_cc_o],
785 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
786 [emacs_cv_prog_cc_o=yes],
787 [emacs_cv_prog_cc_o=no])])
788 if test $emacs_cv_prog_cc_o != yes; then
789 CFLAGS=$emacs_save_CFLAGS
794 AC_ARG_ENABLE([gcc-warnings],
795 [AS_HELP_STRING([--enable-gcc-warnings],
796 [turn on lots of GCC warnings/errors. This is intended for
797 developers, and may generate false alarms when used
798 with older or non-GNU development tools.])],
801 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
803 gl_gcc_warnings=$enableval],
807 # clang is unduly picky about some things.
808 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
815 [emacs_cv_clang=yes],
816 [emacs_cv_clang=no])])
818 # When compiling with GCC, prefer -isystem to -I when including system
819 # include files, to avoid generating useless diagnostics for the files.
820 if test "$gl_gcc_warnings" != yes; then
822 if test "$emacs_cv_clang" = yes
824 # Turn off some warnings if supported.
825 gl_WARN_ADD([-Wno-switch])
826 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
827 gl_WARN_ADD([-Wno-pointer-sign])
832 # This, $nw, is the list of warnings we disable.
835 case $with_x_toolkit in
836 lucid | athena | motif)
837 # Old toolkits mishandle 'const'.
838 nw="$nw -Wwrite-strings"
841 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
844 AC_SUBST([WERROR_CFLAGS])
846 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
847 nw="$nw -Woverlength-strings" # Not a problem these days
848 nw="$nw -Wformat-nonliteral" # we do this a lot
849 nw="$nw -Wvla" # Emacs uses <vla.h>.
850 nw="$nw -Wswitch-default" # Too many warnings for now
851 nw="$nw -Winline" # OK to ignore 'inline'
852 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
853 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
854 # signed overflow has undefined behavior
855 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
856 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
857 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
859 # Emacs doesn't care about shadowing; see
860 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
863 # Emacs's use of alloca inhibits protecting the stack.
864 nw="$nw -Wstack-protector"
866 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
867 # option problematic.
868 nw="$nw -Wsuggest-attribute=pure"
870 # This part is merely for shortening the command line,
871 # since -Wno-FOO needs to be added below regardless.
872 nw="$nw -Wmissing-field-initializers"
874 nw="$nw -Wtype-limits"
875 nw="$nw -Wunused-parameter"
877 if test $emacs_cv_clang = yes; then
878 nw="$nw -Wcast-align"
881 gl_MANYWARN_ALL_GCC([ws])
882 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
886 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
887 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
888 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
889 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
890 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
891 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
892 gl_WARN_ADD([-Wno-format-nonliteral])
894 # More things that clang is unduly picky about.
895 if test $emacs_cv_clang = yes; then
896 gl_WARN_ADD([-Wno-format-extra-args])
897 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
898 gl_WARN_ADD([-Wno-unused-command-line-argument])
899 gl_WARN_ADD([-Wno-unused-value])
902 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
903 AH_VERBATIM([FORTIFY_SOURCE],
904 [/* Enable compile-time and run-time bounds-checking, and some warnings,
905 without upsetting glibc 2.15+. */
906 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
907 # define _FORTIFY_SOURCE 2
910 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
912 # We use a slightly smaller set of warning options for lib/.
913 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
915 nw="$nw -Wunused-macros"
917 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
918 AC_SUBST([GNULIB_WARN_CFLAGS])
928 AC_ARG_ENABLE(link-time-optimization,
929 [AS_HELP_STRING([--enable-link-time-optimization],
930 [build emacs with link-time optimization.
931 This requires GCC 4.5.0 or later, or clang.
932 (Note that clang support is experimental - see INSTALL.)
933 It also makes Emacs harder to debug, and when we tried it
934 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
935 recommended for typical use.])],
936 if test "${enableval}" != "no"; then
938 if test $emacs_cv_clang = yes; then
939 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
940 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
941 if test -x "$GOLD_PLUGIN"; then
944 elif test x$GCC = xyes; then
945 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
946 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
947 if test x$CPUS != x; then
953 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
955 if test -z "$LTO"; then
959 CFLAGS="$CFLAGS $LTO"
960 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
961 [ac_lto_supported=yes], [ac_lto_supported=no])
964 AC_MSG_RESULT([$ac_lto_supported])
965 if test "$ac_lto_supported" = "yes"; then
966 CFLAGS="$CFLAGS $LTO"
967 if test x$emacs_cv_clang = xyes; then
968 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
969 # WARNING: 'ar --plugin ...' doesn't work without
970 # command, so plugin name is appended to ARFLAGS.
971 ARFLAGS="cru --plugin $GOLD_PLUGIN"
972 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
974 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
975 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
976 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
977 dnl dump core on Fedora 20, so play it safe for now.
978 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
979 [CFLAGS="$CFLAGS -ffat-lto-objects"])
984 dnl Port to Automake 1.11.
985 dnl This section can be removed once we assume Automake 1.14 or later.
986 : ${AM_DEFAULT_VERBOSITY=1}
987 : ${AM_V=$AM_DEFAULT_VERBOSITY}
988 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
990 AM_SUBST_NOTMAKE([AM_V])
991 AC_SUBST([AM_DEFAULT_V])
992 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
993 AC_SUBST([AM_DEFAULT_VERBOSITY])
995 dnl Some other nice autoconf tests.
996 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
999 dnl if test "x$RANLIB" = x; then
1004 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1005 dnl can be made to directories. This is not relevant for our usage, and
1006 dnl excludes some cases that work fine for us. Eg MS Windows or files
1007 dnl hosted on AFS, both examples where simple links work, but links to
1008 dnl directories fail. We use a cut-down version instead.
1011 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1012 rm -f conf$$ conf$$.file
1014 LN_S_FILEONLY='cp -p'
1016 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1017 dnl random program in the current directory.
1018 if (echo >conf$$.file) 2>/dev/null; then
1019 if ln -s conf$$.file conf$$ 2>/dev/null; then
1020 if test "$opsys" = "mingw32"; then
1021 LN_S_FILEONLY='/bin/ln -s'
1023 LN_S_FILEONLY='ln -s'
1025 elif ln conf$$.file conf$$ 2>/dev/null; then
1026 if test "$opsys" = "mingw32"; then
1027 LN_S_FILEONLY=/bin/ln
1034 rm -f conf$$ conf$$.file
1036 if test "$LN_S_FILEONLY" = "ln -s"; then
1037 AC_MSG_RESULT([yes])
1039 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1042 AC_SUBST(LN_S_FILEONLY)
1045 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1046 dnl doesn't support links to directories, as in "ln file dir". But that
1047 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1048 dnl executables at "make install" time.
1049 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1050 dnl for more details.
1051 if test "$opsys" = "mingw32"; then
1055 dnl On some Debian versions, "install-info" prints irritating messages
1056 dnl "This is not dpkg install-info anymore, but GNU install-info"
1057 dnl if called via an absolute file name.
1058 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1059 dnl Sadly some people may have an old ginstall-info installed on
1060 dnl non-Debian systems, so we can't use this.
1061 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1062 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1064 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1065 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1066 dnl Don't use GZIP, which is used by gzip for additional parameters.
1067 AC_PATH_PROG(GZIP_PROG, gzip)
1069 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1070 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1072 if test $opsys = gnu-linux; then
1073 AC_PATH_PROG(PAXCTL, paxctl,,
1074 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1075 if test "X$PAXCTL" != X; then
1076 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1077 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1078 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1079 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1082 if test "${SETFATTR+set}" != set; then
1083 AC_CACHE_CHECK([for setfattr],
1084 [emacs_cv_prog_setfattr],
1086 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1087 emacs_cv_prog_setfattr=yes
1089 emacs_cv_prog_setfattr=no
1091 if test "$emacs_cv_prog_setfattr" = yes; then
1097 AC_SUBST([SETFATTR])
1101 ## Need makeinfo >= 4.7 (?) to build the manuals.
1102 if test "$MAKEINFO" != "no"; then
1103 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1106 case `($MAKEINFO --version) 2>/dev/null` in
1107 *' (GNU texinfo) '4.[[7-9]]* | \
1108 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1109 *' (GNU texinfo) '[[5-9]]* | \
1110 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1115 ## Makeinfo is unusual. For a released Emacs, the manuals are
1116 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1117 ## therefore in the category of "special tools" not normally required, which
1118 ## configure does not have to check for (eg autoconf itself).
1119 ## In a repository checkout on the other hand, the manuals are not included.
1120 ## So makeinfo is a requirement to build from the repository, and configure
1121 ## should test for it as it does for any other build requirement.
1122 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1123 ## with pre-built manuals, from a repository checkout.
1126 if test "$MAKEINFO" = "no"; then
1128 if test "x${with_makeinfo}" = "xno"; then
1130 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1131 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1132 source tree does not seem to have pre-built manuals in the `info' directory.
1133 Either install a suitable version of makeinfo, or re-run configure
1134 with the `--without-makeinfo' option to build without the manuals.] )
1137 AC_SUBST(HAVE_MAKEINFO)
1139 if test $opsys = mingw32; then
1140 DOCMISC_W32=efaq-w32
1144 AC_SUBST(DOCMISC_W32)
1146 dnl Add our options to ac_link now, after it is set up.
1148 if test x$GCC = xyes; then
1149 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1150 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1152 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1153 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1156 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1157 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1158 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1159 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1160 dnl if not built to support GNU ld.
1162 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1163 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1164 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1165 dnl Eg "make LDFLAGS=... all" could run into problems,
1166 dnl http://bugs.debian.org/684788
1167 dnl * unnecessary, since temacs is the only thing that actually needs it.
1168 dnl Indeed this is where it was originally, prior to:
1169 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1170 late_LDFLAGS="$LDFLAGS"
1171 if test x$GCC = xyes; then
1172 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1174 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1177 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1179 AC_MSG_CHECKING([for -znocombreloc])
1180 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1181 [AC_MSG_RESULT(yes)],
1182 LDFLAGS_NOCOMBRELOC=
1183 [AC_MSG_RESULT(no)])
1185 LDFLAGS="$late_LDFLAGS"
1187 AC_CACHE_CHECK([whether addresses are sanitized],
1188 [emacs_cv_sanitize_address],
1191 [[#ifndef __has_feature
1192 #define __has_feature(f) 0
1194 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1196 error "Addresses are not sanitized.";
1199 [emacs_cv_sanitize_address=yes],
1200 [emacs_cv_sanitize_address=no])])
1202 dnl The function dump-emacs will not be defined and temacs will do
1203 dnl (load "loadup") automatically unless told otherwise.
1204 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1206 your-opsys-here) CANNOT_DUMP=yes ;;
1209 if test "$CANNOT_DUMP" = "yes"; then
1210 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1211 elif test "$emacs_cv_sanitize_address" = yes; then
1212 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1215 AC_SUBST(CANNOT_DUMP)
1218 UNEXEC_OBJ=unexelf.o
1220 # MSDOS uses unexcoff.o
1222 UNEXEC_OBJ=unexaix.o
1228 UNEXEC_OBJ=unexmacosx.o
1231 UNEXEC_OBJ=unexhp9k800.o
1234 UNEXEC_OBJ=unexw32.o
1237 # Use the Solaris dldump() function, called from unexsol.c, to dump
1238 # emacs, instead of the generic ELF dump code found in unexelf.c.
1239 # The resulting binary has a complete symbol table, and is better
1240 # for debugging and other observability tools (debuggers, pstack, etc).
1242 # If you encounter a problem using dldump(), please consider sending
1243 # a message to the OpenSolaris tools-linking mailing list:
1244 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1246 # It is likely that dldump() works with older Solaris too, but this has
1247 # not been tested, so for now this change is for Solaris 10 or newer.
1248 UNEXEC_OBJ=unexsol.o
1255 ## Let `ld' find image libs and similar things in /usr/local/lib.
1256 ## The system compiler, GCC, has apparently been modified to not
1257 ## look there, contrary to what a stock GCC would do.
1258 ### It's not our place to do this. See bug#10313#17.
1259 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1264 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1265 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1269 ### It's not our place to do this. See bug#10313#17.
1270 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1275 ## Han Boetes <han@boetes.org> says this is necessary,
1276 ## otherwise Emacs dumps core on elf systems.
1277 LD_SWITCH_SYSTEM="-Z"
1280 AC_SUBST(LD_SWITCH_SYSTEM)
1282 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1284 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1285 ## which has not been defined yet. When this was handled with cpp,
1286 ## it was expanded to null when configure sourced the s/*.h file.
1287 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1288 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1289 ## (or somesuch), but because it is supposed to go at the _front_
1290 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1291 ## Compare with the gnu-linux case below, which added to the end
1292 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1293 ## LD_SWITCH_SYSTEM_TEMACS.
1296 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1303 AC_CHECK_DECL([__ELF__])
1304 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1305 ## With ELF, make sure that all common symbols get allocated to in the
1306 ## data section. Otherwise, the dump of temacs may miss variables in
1307 ## the shared library that have been initialized. For example, with
1308 ## GNU libc, __malloc_initialized would normally be resolved to the
1309 ## shared library's .bss section, which is fatal.
1310 if test "x$GCC" = "xyes"; then
1311 C_SWITCH_MACHINE="-fno-common"
1313 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1316 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1317 dnl albeit under the mistaken assumption that said file
1318 dnl was no longer used.
1319 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1323 AC_SUBST(C_SWITCH_MACHINE)
1325 AC_SUBST(UNEXEC_OBJ)
1328 ## Some programs in src produce warnings saying certain subprograms
1329 ## are too complex and need a MAXMEM value greater than 2000 for
1330 ## additional optimization. --nils@exp-math.uni-essen.de
1331 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1332 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1333 if test "$opsys" = "mingw32"; then
1334 case "$canonical" in
1335 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1336 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1339 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1340 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1341 AC_SUBST(C_SWITCH_SYSTEM)
1346 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1347 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1349 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1351 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1353 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1355 ## Motif needs -lgen.
1356 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1359 AC_SUBST(LIBS_SYSTEM)
1361 ### Make sure subsequent tests use flags consistent with the build flags.
1363 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1364 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1366 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1369 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1370 AC_DEFUN([AC_TYPE_SIZE_T])
1371 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1372 AC_DEFUN([AC_TYPE_UID_T])
1374 # sqrt and other floating-point functions such as fmod and frexp
1375 # are found in -lm on many systems.
1377 AC_SEARCH_LIBS([sqrt], [m])
1378 if test "X$LIBS" = "X$OLD_LIBS"; then
1381 LIB_MATH=$ac_cv_search_sqrt
1385 dnl Current possibilities handled by sed (aix4-2 -> aix,
1386 dnl gnu-linux -> gnu/linux, etc.):
1387 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1388 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1389 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1396 ## Adding -lm confuses the dynamic linker, so omit it.
1399 freebsd | dragonfly )
1400 SYSTEM_TYPE=berkeley-unix
1402 gnu-linux | gnu-kfreebsd )
1404 hpux10-20 | hpux11 )
1408 SYSTEM_TYPE=windows-nt
1410 dnl NB this may be adjusted below.
1412 SYSTEM_TYPE=berkeley-unix
1416 SYSTEM_TYPE=usg-unix-v
1422 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1423 [The type of system you are compiling for; sets `system-type'.])
1426 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1427 pre_PKG_CONFIG_LIBS=$LIBS
1429 PKG_PROG_PKG_CONFIG(0.9.0)
1431 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1432 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1433 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1434 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1435 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1436 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1438 AC_DEFUN([EMACS_CHECK_MODULES],
1439 [PKG_CHECK_MODULES([$1], [$2],
1440 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1441 m4_default([$3], [HAVE_$1=yes])],
1442 [m4_default([$4], [HAVE_$1=no])])])
1445 if test "${with_sound}" != "no"; then
1446 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1447 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1448 have_sound_header=yes, [], [
1450 #define WIN32_LEAN_AND_MEAN
1451 #include <windows.h>
1454 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1455 AC_MSG_ERROR([OSS sound support requested but not found.])
1457 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1458 # Emulation library used on NetBSD.
1459 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1460 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1461 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1462 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1463 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1467 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1469 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1470 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1471 if test $HAVE_ALSA = yes; then
1472 SAVE_CFLAGS="$CFLAGS"
1474 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1475 LIBS="$ALSA_LIBS $LIBS"
1476 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1477 emacs_alsa_normal=yes,
1478 emacs_alsa_normal=no)
1479 if test "$emacs_alsa_normal" != yes; then
1480 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1481 [[snd_lib_error_set_handler (0);]])],
1482 emacs_alsa_subdir=yes,
1483 emacs_alsa_subdir=no)
1484 if test "$emacs_alsa_subdir" != yes; then
1485 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1487 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1490 CFLAGS="$SAVE_CFLAGS"
1492 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1493 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1494 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1495 elif test "${with_sound}" = "alsa"; then
1496 AC_MSG_ERROR([ALSA sound support requested but not found.])
1498 fi dnl with_sound = alsa|yes
1500 dnl Define HAVE_SOUND if we have sound support. We know it works and
1501 dnl compiles only on the specified platforms. For others, it
1502 dnl probably doesn't make sense to try.
1503 dnl FIXME So surely we should bypass this whole section if not using
1504 dnl one of these platforms?
1505 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1507 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1508 dnl Adjust the --with-sound help text if you change this.
1509 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1510 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1516 AC_SUBST(CFLAGS_SOUND)
1519 dnl checks for header files
1520 AC_CHECK_HEADERS_ONCE(
1525 sys/utsname.h pwd.h utmp.h util.h)
1527 AC_MSG_CHECKING(if personality LINUX32 can be set)
1528 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1529 emacs_cv_personality_linux32=yes,
1530 emacs_cv_personality_linux32=no)
1531 AC_MSG_RESULT($emacs_cv_personality_linux32)
1533 if test $emacs_cv_personality_linux32 = yes; then
1534 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1535 [Define to 1 if personality LINUX32 can be set.])
1538 # Note that Solaris has sys/sysinfo.h which defines struct
1539 # sysinfo as well. To make sure that we're using GNU/Linux
1540 # sysinfo, we explicitly set one of its fields.
1541 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1542 AC_MSG_CHECKING([if Linux sysinfo may be used])
1543 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1544 [[struct sysinfo si;
1547 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1548 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1549 if test $emacs_cv_linux_sysinfo = yes; then
1550 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1551 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1552 [[struct sysinfo si; return si.mem_unit]])],
1553 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1554 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1558 dnl On Solaris 8 there's a compilation warning for term.h because
1559 dnl it doesn't define `bool'.
1560 AC_CHECK_HEADERS(term.h, , , -)
1562 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1564 if test $ac_cv_have_decl_sys_siglist != yes; then
1565 # For Tru64, at least:
1566 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1571 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1572 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1573 #if HAVE_SYS_SOCKET_H
1574 #include <sys/socket.h>
1576 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1577 #if HAVE_SYS_SOCKET_H
1578 #include <sys/socket.h>
1580 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1581 #if HAVE_SYS_SOCKET_H
1582 #include <sys/socket.h>
1585 dnl checks for structure members
1586 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1587 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1588 struct ifreq.ifr_addr,
1589 struct ifreq.ifr_addr.sa_len], , ,
1590 [AC_INCLUDES_DEFAULT
1591 #if HAVE_SYS_SOCKET_H
1592 #include <sys/socket.h>
1598 dnl Check for endianness.
1599 dnl AC_C_BIGENDIAN is done by gnulib.
1601 dnl check for Make feature
1606 dnl check if we have GCC and autodepend is on.
1607 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1608 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1609 SAVE_CFLAGS="$CFLAGS"
1610 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1611 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1612 CFLAGS="$SAVE_CFLAGS"
1613 test -f deps.d || ac_enable_autodepend=no
1615 AC_MSG_RESULT([$ac_enable_autodepend])
1616 if test $ac_enable_autodepend = yes; then
1617 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1618 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1619 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1620 deps_frag=autodeps.mk
1623 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1624 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1625 deps_frag=$srcdir/src/$deps_frag
1628 AC_SUBST_FILE(deps_frag)
1629 AC_SUBST_FILE(lwlib_deps_frag)
1630 AC_SUBST_FILE(oldxmenu_deps_frag)
1632 lisp_frag=$srcdir/src/lisp.mk
1633 AC_SUBST_FILE(lisp_frag)
1636 dnl checks for operating system services
1637 AC_SYS_LONG_FILE_NAMES
1639 #### Choose a window system.
1641 ## We leave window_system equal to none if
1642 ## we end up building without one. Any new window system should
1643 ## set window_system to an appropriate value and add objects to
1644 ## window-system-specific substs.
1648 if test "$no_x" != yes; then
1652 LD_SWITCH_X_SITE_RPATH=
1653 if test "${x_libraries}" != NONE; then
1654 if test -n "${x_libraries}"; then
1655 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1656 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1658 x_default_search_path=""
1659 x_search_path=${x_libraries}
1660 if test -z "${x_search_path}"; then
1661 x_search_path=/usr/lib
1663 for x_library in `echo ${x_search_path}: | \
1664 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1666 ${x_library}/X11/%L/%T/%N%C%S:\
1667 ${x_library}/X11/%l/%T/%N%C%S:\
1668 ${x_library}/X11/%T/%N%C%S:\
1669 ${x_library}/X11/%L/%T/%N%S:\
1670 ${x_library}/X11/%l/%T/%N%S:\
1671 ${x_library}/X11/%T/%N%S"
1672 if test x"${x_default_search_path}" = x; then
1673 x_default_search_path=${x_search_path}
1675 x_default_search_path="${x_search_path}:${x_default_search_path}"
1679 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1681 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1682 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1685 if test x"${x_includes}" = x; then
1686 bitmapdir=/usr/include/X11/bitmaps
1688 # accumulate include directories that have X11 bitmap subdirectories
1690 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1691 if test -d "${bmd}/X11/bitmaps"; then
1692 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1694 if test -d "${bmd}/bitmaps"; then
1695 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1698 if test ${bmd_acc} != "dummyval"; then
1699 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1706 tmp_CPPFLAGS="$CPPFLAGS"
1707 tmp_CFLAGS="$CFLAGS"
1708 CPPFLAGS="$CPPFLAGS -x objective-c"
1709 CFLAGS="$CFLAGS -x objective-c"
1712 if test "${with_ns}" != no; then
1713 if test "${opsys}" = darwin; then
1715 ns_appdir=`pwd`/nextstep/Emacs.app
1716 ns_appbindir=${ns_appdir}/Contents/MacOS
1717 ns_appresdir=${ns_appdir}/Contents/Resources
1718 ns_appsrc=Cocoa/Emacs.base
1719 elif test -f $GNUSTEP_CONFIG_FILE; then
1721 ns_appdir=`pwd`/nextstep/Emacs.app
1722 ns_appbindir=${ns_appdir}
1723 ns_appresdir=${ns_appdir}/Resources
1724 ns_appsrc=GNUstep/Emacs.base
1725 dnl FIXME sourcing this several times in subshells seems inefficient.
1726 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1727 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1728 dnl I seemed to need these as well with GNUstep-startup 0.25.
1729 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1730 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1731 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1732 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1733 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1734 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1735 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1736 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1737 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1738 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1739 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1740 dnl If they had chosen to either define it or not, we could have
1741 dnl just used AC_CHECK_DECL here.
1742 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1743 emacs_cv_objc_exceptions,
1744 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1745 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1749 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1750 if test $emacs_cv_objc_exceptions = yes; then
1751 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1752 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1753 [Define if GNUstep uses ObjC exceptions.])
1754 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1758 dnl This is only used while we test the NS headers, it gets reset below.
1759 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1761 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1762 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1763 files are missing or cannot be compiled.])])
1766 if test "${NS_IMPL_COCOA}" = "yes"; then
1767 AC_MSG_CHECKING([for OSX 10.4 or newer])
1768 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1770 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1771 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1774 error "OSX 10.4 or newer required";
1778 ns_osx_have_104=yes,
1780 AC_MSG_RESULT([$ns_osx_have_104])
1782 if test $ns_osx_have_104 = no; then
1783 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1785 AC_MSG_CHECKING([for OSX 10.5 or newer])
1786 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1788 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1789 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1792 error "OSX 10.5 not found";
1796 ns_osx_have_105=yes,
1798 AC_MSG_RESULT([$ns_osx_have_105])
1799 if test $ns_osx_have_105 = yes; then
1800 macfont_file="macfont.o"
1803 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1805 ns_have_nsinteger=yes,
1806 ns_have_nsinteger=no)
1807 if test $ns_have_nsinteger = yes; then
1808 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1812 AC_SUBST(LIBS_GNUSTEP)
1814 INSTALL_ARCH_INDEP_EXTRA=install-etc
1815 ns_self_contained=no
1818 if test "${HAVE_NS}" = yes; then
1819 if test "$with_toolkit_scroll_bars" = "no"; then
1820 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1823 window_system=nextstep
1824 # set up packaging dirs
1825 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1826 ns_self_contained=yes
1827 prefix=${ns_appresdir}
1828 exec_prefix=${ns_appbindir}
1829 dnl This one isn't really used, only archlibdir is.
1830 libexecdir="\${ns_appbindir}/libexec"
1831 archlibdir="\${ns_appbindir}/libexec"
1832 etcdocdir="\${ns_appresdir}/etc"
1833 etcdir="\${ns_appresdir}/etc"
1834 dnl FIXME maybe set datarootdir instead.
1835 dnl That would also get applications, icons, man.
1836 infodir="\${ns_appresdir}/info"
1837 mandir="\${ns_appresdir}/man"
1838 lispdir="\${ns_appresdir}/lisp"
1839 INSTALL_ARCH_INDEP_EXTRA=
1842 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1844 CFLAGS="$tmp_CFLAGS"
1845 CPPFLAGS="$tmp_CPPFLAGS"
1846 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1847 AC_SUBST(ns_self_contained)
1849 AC_SUBST(NS_OBJC_OBJ)
1860 if test "${with_w32}" != no; then
1863 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1864 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1865 cannot be found.])])
1868 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1871 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1876 if test "${opsys}" = "mingw32"; then
1877 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1878 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1879 #include <windows.h>
1880 #include <usp10.h>]],
1881 [[PIMAGE_NT_HEADERS pHeader;
1882 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1883 [emacs_cv_w32api=yes
1886 AC_MSG_RESULT($emacs_cv_w32api)
1887 if test "${emacs_cv_w32api}" = "no"; then
1888 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1899 if test "${HAVE_W32}" = "yes"; then
1900 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1901 AC_CHECK_TOOL(WINDRES, [windres],
1902 [AC_MSG_ERROR([No resource compiler found.])])
1903 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1904 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1905 EMACSRES="emacs.res"
1906 case "$canonical" in
1907 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1908 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1910 if test "${opsys}" = "cygwin"; then
1911 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1912 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1913 # Tell the linker that emacs.res is an object (which we compile from
1914 # the rc file), not a linker script.
1915 W32_RES_LINK="-Wl,emacs.res"
1917 UPDATE_MANIFEST=update-game-score.exe.manifest
1918 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1919 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1920 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1921 W32_RES_LINK="\$(EMACSRES)"
1922 CLIENTRES="emacsclient.res"
1923 CLIENTW="emacsclientw\$(EXEEXT)"
1924 FIRSTFILE_OBJ=firstfile.o
1927 LIBS_ECLIENT="-lcomctl32"
1928 LIB_WSOCK32="-lwsock32"
1929 NTLIB="ntlib.$ac_objext"
1930 XARGS_LIMIT="-s 10000"
1936 AC_SUBST(EMACS_MANIFEST)
1937 AC_SUBST(UPDATE_MANIFEST)
1940 AC_SUBST(W32_RES_LINK)
1941 AC_SUBST(FIRSTFILE_OBJ)
1944 AC_SUBST(LIBS_ECLIENT)
1945 AC_SUBST(LIB_WSOCK32)
1947 AC_SUBST(XARGS_LIMIT)
1949 if test "${HAVE_W32}" = "yes"; then
1954 ## $window_system is now set to the window system we will
1957 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1958 # Too many warnings for now.
1960 nw="$nw -Wsuggest-attribute=const"
1961 nw="$nw -Wsuggest-attribute=noreturn"
1962 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1964 gl_WARN_ADD([-Wno-unused-variable])
1965 gl_WARN_ADD([-Wno-unused-but-set-variable])
1966 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1974 case "${window_system}" in
1979 case "${with_x_toolkit}" in
1980 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1981 motif ) USE_X_TOOLKIT=MOTIF ;;
1983 term_header=gtkutil.h
1984 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1985 dnl USE_X_TOOLKIT is set.
1986 USE_X_TOOLKIT=none ;;
1987 gtk2 ) with_gtk2=yes
1988 term_header=gtkutil.h
1989 USE_X_TOOLKIT=none ;;
1990 gtk3 ) with_gtk3=yes
1991 term_header=gtkutil.h
1992 USE_X_TOOLKIT=none ;;
1993 no ) USE_X_TOOLKIT=none ;;
1994 dnl If user did not say whether to use a toolkit, make this decision later:
1995 dnl use the toolkit if we have gtk, or X11R5 or newer.
1996 * ) USE_X_TOOLKIT=maybe ;;
2000 term_header=nsterm.h
2003 term_header=w32term.h
2007 if test "$window_system" = none && test "X$with_x" != "Xno"; then
2008 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
2009 if test "$HAVE_XSERVER" = true ||
2010 test -n "$DISPLAY" ||
2011 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
2012 AC_MSG_ERROR([You seem to be running X, but no X development libraries
2013 were found. You should install the relevant development files for X
2014 and for the toolkit you want, such as Gtk+ or Motif. Also make
2015 sure you have development files for image handling, i.e.
2016 tiff, gif, jpeg, png and xpm.
2017 If you are sure you want Emacs compiled without X window support, pass
2023 # Does the opsystem file prohibit the use of the GNU malloc?
2024 # Assume not, until told otherwise.
2028 [whether malloc is Doug Lea style],
2029 [emacs_cv_var_doug_lea_malloc],
2030 [emacs_cv_var_doug_lea_malloc=no
2031 dnl Hooks do not work with address sanitization.
2032 if test "$emacs_cv_sanitize_address" != yes; then
2035 [[#include <malloc.h>
2036 static void hook (void) {}]],
2037 [[malloc_set_state (malloc_get_state ());
2038 __after_morecore_hook = hook;
2039 __malloc_initialize_hook = hook;]])],
2040 [emacs_cv_var_doug_lea_malloc=yes])])
2042 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2044 system_malloc=$emacs_cv_sanitize_address
2049 ## darwin ld insists on the use of malloc routines in the System framework.
2050 darwin|mingw32|sol2-10) system_malloc=yes ;;
2051 cygwin) hybrid_malloc=yes;;
2055 if test "${system_malloc}" = "yes"; then
2056 AC_DEFINE([SYSTEM_MALLOC], 1,
2057 [Define to 1 to use the system memory allocator, even if it is not
2061 (The GNU allocators don't work with this system configuration.)"
2063 elif test "$hybrid_malloc" = yes; then
2064 AC_DEFINE(HYBRID_MALLOC, 1,
2065 [Define to use gmalloc before dumping and the system malloc after.])
2067 GNU_MALLOC_reason="only before dumping"
2068 GMALLOC_OBJ=gmalloc.o
2071 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2072 VMLIMIT_OBJ=vm-limit.o
2074 AC_CHECK_HEADERS([sys/vlimit.h])
2075 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2078 [[extern char data_start[]; char ch;]],
2079 [[return data_start < &ch;]])],
2080 [emacs_cv_data_start=yes],
2081 [emacs_cv_data_start=no])])
2082 if test $emacs_cv_data_start = yes; then
2083 AC_DEFINE([HAVE_DATA_START], 1,
2084 [Define to 1 if data_start is the address of the start
2085 of the main data segment.])
2088 AC_SUBST(GMALLOC_OBJ)
2089 AC_SUBST(VMLIMIT_OBJ)
2091 if test "$doug_lea_malloc" = "yes" ; then
2092 if test "$GNU_MALLOC" = yes ; then
2094 (Using Doug Lea's new malloc from the GNU C Library.)"
2096 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2097 [Define to 1 if the system memory allocator is Doug Lea style,
2098 with malloc hooks and malloc_set_state.])
2100 ## Use mmap directly for allocating larger buffers.
2101 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2102 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2103 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2105 mingw32|gnu*) REL_ALLOC=no ;;
2109 if test x"${REL_ALLOC}" = x; then
2110 REL_ALLOC=${GNU_MALLOC}
2113 use_mmap_for_buffers=no
2115 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2119 if test $use_mmap_for_buffers = yes; then
2120 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2124 LIBS="$LIBS_SYSTEM $LIBS"
2126 dnl FIXME replace main with a function we actually want from this library.
2127 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2129 dnl Check for the POSIX thread library.
2131 if test "$opsys" != "mingw32"; then
2132 AC_CHECK_HEADERS_ONCE(pthread.h)
2133 if test "$ac_cv_header_pthread_h"; then
2134 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2135 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2136 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2137 if test "$GMALLOC_OBJ" = gmalloc.o; then
2138 emacs_pthread_function=pthread_atfork
2140 emacs_pthread_function=pthread_kill
2143 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2144 [AC_DEFINE([HAVE_PTHREAD], [1],
2145 [Define to 1 if you have pthread (-lpthread).])
2146 # Some systems optimize for single-threaded programs by default, and
2147 # need special flags to disable these optimizations. For example, the
2148 # definition of 'errno' in <errno.h>.
2151 AC_DEFINE([_REENTRANT], 1,
2152 [Define to 1 if your system requires this in multithreaded code.]);;
2154 AC_DEFINE([_THREAD_SAFE], 1,
2155 [Define to 1 if your system requires this in multithreaded code.]);;
2157 if test "X$LIBS" != "X$OLD_LIBS"; then
2158 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2162 AC_SUBST([LIB_PTHREAD])
2165 dnl Check for need for bigtoc support on IBM AIX
2169 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2171 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2172 *) gdb_cv_bigtoc=-bbigtoc ;;
2175 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2176 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2181 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2182 # is for the tests that follow. We set them back later on.
2184 REAL_CFLAGS="$CFLAGS"
2185 REAL_CPPFLAGS="$CPPFLAGS"
2188 if test "${HAVE_X11}" = "yes"; then
2189 DEFS="$C_SWITCH_X_SITE $DEFS"
2190 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2192 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2193 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2195 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2196 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2197 # but it's more convenient here to set LD_RUN_PATH since this
2198 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2199 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2200 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2204 if test "${opsys}" = "gnu-linux"; then
2205 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2206 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2207 [[XOpenDisplay ("foo");]])],
2208 [xgnu_linux_first_failure=no],
2209 [xgnu_linux_first_failure=yes])
2210 if test "${xgnu_linux_first_failure}" = "yes"; then
2211 OLD_CPPFLAGS="$CPPFLAGS"
2213 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2214 LIBS="$LIBS -b i486-linuxaout"
2215 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2216 [[XOpenDisplay ("foo");]])],
2217 [xgnu_linux_second_failure=no],
2218 [xgnu_linux_second_failure=yes])
2219 if test "${xgnu_linux_second_failure}" = "yes"; then
2220 # If we get the same failure with -b, there is no use adding -b.
2221 # So leave it out. This plays safe.
2224 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2225 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2228 CPPFLAGS=$OLD_CPPFLAGS
2235 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2236 # header files included from there.
2237 AC_MSG_CHECKING(for Xkb)
2238 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2239 #include <X11/XKBlib.h>]],
2240 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2241 emacs_xkb=yes, emacs_xkb=no)
2242 AC_MSG_RESULT($emacs_xkb)
2243 if test $emacs_xkb = yes; then
2244 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2247 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2248 XScreenNumberOfScreen)
2251 if test "${window_system}" = "x11"; then
2252 AC_MSG_CHECKING(X11 version 6)
2253 AC_CACHE_VAL(emacs_cv_x11_version_6,
2254 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2255 [[#if XlibSpecificationRelease < 6
2258 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2259 if test $emacs_cv_x11_version_6 = yes; then
2260 AC_MSG_RESULT(6 or newer)
2261 AC_DEFINE(HAVE_X11R6, 1,
2262 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2263 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2264 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2268 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2269 [Define if you have usable X11R6-style XIM support.])
2273 AC_MSG_RESULT(before 6)
2278 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2280 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2281 if test "${with_rsvg}" != "no"; then
2282 RSVG_REQUIRED=2.11.0
2283 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2285 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2286 AC_SUBST(RSVG_CFLAGS)
2289 if test $HAVE_RSVG = yes; then
2290 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2291 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2292 # Windows loads librsvg dynamically
2293 if test "${opsys}" = "mingw32"; then
2301 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2302 if test "${with_imagemagick}" != "no"; then
2303 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2304 ## 6.8.2 makes Emacs crash; see Bug#13867.
2305 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2306 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2307 AC_SUBST(IMAGEMAGICK_CFLAGS)
2308 AC_SUBST(IMAGEMAGICK_LIBS)
2310 if test $HAVE_IMAGEMAGICK = yes; then
2311 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2314 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2315 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2316 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2326 gtk_term_header=$term_header
2329 if test "${opsys}" != "mingw32"; then
2330 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2333 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2335 dnl Checks for libraries.
2336 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2337 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2338 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2339 AC_MSG_ERROR($GTK_PKG_ERRORS)
2341 if test "$pkg_check_gtk" = "yes"; then
2342 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2343 GTK_OBJ=emacsgtkfixed.o
2344 gtk_term_header=gtkutil.h
2345 USE_GTK_TOOLKIT="GTK3"
2346 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2347 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2348 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2349 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2350 [Define to 1 to disable Glib deprecation warnings.])
2354 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2358 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2361 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2363 dnl Checks for libraries.
2364 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2365 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2366 if test "$pkg_check_gtk" = "no" &&
2367 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2369 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2371 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2378 if test x"$pkg_check_gtk" = xyes; then
2381 CFLAGS="$CFLAGS $GTK_CFLAGS"
2382 LIBS="$GTK_LIBS $LIBS"
2383 dnl Try to compile a simple GTK program.
2384 AC_MSG_CHECKING([whether GTK compiles])
2388 [[/* Check the Gtk and Glib APIs. */
2389 #include <gtk/gtk.h>
2390 #include <glib-object.h>
2392 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2396 GtkSettings *gs = 0;
2397 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2398 strict C prohibits this. Use gtk_main_iteration to test that the
2399 libraries are there. */
2400 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2401 0, 0, 0, G_CALLBACK (callback), 0))
2402 gtk_main_iteration ();
2405 AC_MSG_RESULT([$GTK_COMPILES])
2406 if test "${GTK_COMPILES}" != "yes"; then
2408 if test "$USE_X_TOOLKIT" != "maybe"; then
2409 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2412 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2414 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2415 GTK_OBJ="gtkutil.o $GTK_OBJ"
2416 term_header=$gtk_term_header
2418 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2421 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2422 closing open displays. This is no problem if you just use
2423 one display, but if you use more than one and close one of them
2433 if test "${HAVE_GTK}" = "yes"; then
2435 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2436 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2437 if test "$with_toolkit_scroll_bars" != no; then
2438 with_toolkit_scroll_bars=yes
2441 dnl Check if we have the old file selection dialog declared and
2442 dnl in the link library. In 2.x it may be in the library,
2443 dnl but not declared if deprecated featured has been selected out.
2444 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2445 HAVE_GTK_FILE_SELECTION=no
2446 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2447 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2448 #include <gtk/gtk.h>])
2449 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2450 AC_CHECK_FUNCS(gtk_file_selection_new)
2453 dnl Same as above for gtk_handle_box.
2454 HAVE_GTK_HANDLE_BOX=no
2455 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2456 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2457 #include <gtk/gtk.h>])
2458 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2459 AC_CHECK_FUNCS(gtk_handle_box_new)
2462 dnl Same as above for gtk_tearoff_menu_item.
2463 HAVE_GTK_TEAROFF_MENU_ITEM=no
2464 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2465 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2466 #include <gtk/gtk.h>])
2467 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2468 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2471 dnl Check for functions introduced in 2.14 and later.
2472 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2473 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2474 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2475 gtk_orientable_set_orientation \
2476 gtk_window_set_has_resize_grip)
2478 term_header=gtkutil.h
2484 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2485 dnl other platforms.
2488 if test "${with_dbus}" = "yes"; then
2489 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2490 if test "$HAVE_DBUS" = yes; then
2491 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2492 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2493 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2496 LIBS="$LIBS $DBUS_LIBS"
2497 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2498 dbus_type_is_valid \
2499 dbus_validate_bus_name \
2500 dbus_validate_path \
2501 dbus_validate_interface \
2502 dbus_validate_member)
2507 AC_SUBST(DBUS_CFLAGS)
2511 dnl GSettings has been tested under GNU/Linux only.
2513 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2514 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2515 if test "$HAVE_GSETTINGS" = "yes"; then
2517 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2519 LIBS="$LIBS $GSETTINGS_LIBS"
2520 AC_MSG_CHECKING([whether GSettings is in gio])
2523 [[/* Check that gsettings really is present. */
2524 #include <glib-object.h>
2525 #include <gio/gio.h>
2528 GSettings *settings;
2529 GVariant *val = g_settings_get_value (settings, "");
2531 [], HAVE_GSETTINGS=no)
2532 AC_MSG_RESULT([$HAVE_GSETTINGS])
2534 if test "$HAVE_GSETTINGS" = "yes"; then
2535 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2536 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2537 SETTINGS_LIBS="$GSETTINGS_LIBS"
2544 dnl GConf has been tested under GNU/Linux only.
2545 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2547 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2548 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2549 if test "$HAVE_GCONF" = yes; then
2550 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2551 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2552 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2553 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2557 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2558 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2559 if test "$HAVE_GOBJECT" = "yes"; then
2560 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2561 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2563 SAVE_CFLAGS="$CFLAGS"
2565 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2566 LIBS="$SETTINGS_LIBS $LIBS"
2567 CFLAGS="$SAVE_CFLAGS"
2570 AC_SUBST(SETTINGS_CFLAGS)
2571 AC_SUBST(SETTINGS_LIBS)
2574 dnl SELinux is available for GNU/Linux only.
2577 if test "${with_selinux}" = "yes"; then
2578 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2579 if test "$HAVE_LIBSELINUX" = yes; then
2580 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2581 LIBSELINUX_LIBS=-lselinux
2584 AC_SUBST(LIBSELINUX_LIBS)
2588 if test "${with_gnutls}" = "yes" ; then
2589 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2590 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2591 if test "${HAVE_GNUTLS3}" = "yes"; then
2592 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2595 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2596 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2598 if test "${HAVE_GNUTLS}" = "yes"; then
2599 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2602 # Windows loads GnuTLS dynamically
2603 if test "${opsys}" = "mingw32"; then
2608 AC_SUBST(LIBGNUTLS_LIBS)
2609 AC_SUBST(LIBGNUTLS_CFLAGS)
2614 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2615 dnl a particular library. This doesn't make much sense?
2616 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2617 with_file_notification=no
2620 dnl MS Windows native file monitor is available for mingw32 only.
2621 case $with_file_notification,$opsys in
2622 w32,* | yes,mingw32)
2623 AC_CHECK_HEADER(windows.h)
2624 if test "$ac_cv_header_windows_h" = yes ; then
2625 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2626 NOTIFY_OBJ=w32notify.o
2627 NOTIFY_SUMMARY="yes (w32)"
2631 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2632 dnl has been added in glib 2.24. It has been tested under
2633 dnl GNU/Linux only. We take precedence over inotify, but this makes
2634 dnl only sense when glib has been compiled with inotify support. How
2636 case $with_file_notification,$NOTIFY_OBJ in
2638 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2639 if test "$HAVE_GFILENOTIFY" = "yes"; then
2640 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2641 NOTIFY_OBJ=gfilenotify.o
2642 NOTIFY_SUMMARY="yes -lgio (gfile)"
2646 dnl inotify is only available on GNU/Linux.
2647 case $with_file_notification,$NOTIFY_OBJ in
2649 AC_CHECK_HEADER(sys/inotify.h)
2650 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2651 AC_CHECK_FUNC(inotify_init1)
2652 if test "$ac_cv_func_inotify_init1" = yes; then
2653 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2654 NOTIFY_OBJ=inotify.o
2655 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2660 case $with_file_notification,$NOTIFY_OBJ in
2661 yes,* | no,* | *,?*) ;;
2662 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2665 if test -n "$NOTIFY_OBJ"; then
2666 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2668 AC_SUBST(NOTIFY_OBJ)
2669 AC_SUBST(GFILENOTIFY_CFLAGS)
2670 AC_SUBST(GFILENOTIFY_LIBS)
2672 dnl Do not put whitespace before the #include statements below.
2673 dnl Older compilers (eg sunos4 cc) choke on it.
2676 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2677 if test "$with_xaw3d" != no; then
2678 AC_CACHE_VAL(emacs_cv_xaw3d,
2679 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2680 #include <X11/Intrinsic.h>
2681 #include <X11/Xaw3d/Simple.h>]],
2683 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2684 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2685 emacs_cv_xaw3d=no)])
2689 if test $emacs_cv_xaw3d = yes; then
2690 AC_MSG_CHECKING(for xaw3d)
2691 AC_MSG_RESULT([yes; using Lucid toolkit])
2695 AC_DEFINE(HAVE_XAW3D, 1,
2696 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2698 AC_MSG_CHECKING(for xaw3d)
2700 AC_MSG_CHECKING(for libXaw)
2701 AC_CACHE_VAL(emacs_cv_xaw,
2702 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2703 #include <X11/Intrinsic.h>
2704 #include <X11/Xaw/Simple.h>]],
2708 if test $emacs_cv_xaw = yes; then
2709 AC_MSG_RESULT([yes; using Lucid toolkit])
2712 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2713 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2715 AC_MSG_ERROR([No X toolkit could be found.
2716 If you are sure you want Emacs compiled without an X toolkit, pass
2718 to configure. Otherwise, install the development libraries for the toolkit
2719 that you want to use (e.g. Gtk+) and re-run configure.])
2724 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2728 if test "${USE_X_TOOLKIT}" != "none"; then
2729 AC_MSG_CHECKING(X11 toolkit version)
2730 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2731 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2732 [[#if XtSpecificationRelease < 6
2735 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2736 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2737 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2738 AC_MSG_RESULT(6 or newer)
2739 AC_DEFINE(HAVE_X11XTR6, 1,
2740 [Define to 1 if you have the X11R6 or newer version of Xt.])
2741 LIBXTR6="-lSM -lICE"
2743 ## Use libw.a along with X11R6 Xt.
2744 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2747 AC_MSG_RESULT(before 6)
2750 dnl If using toolkit, check whether libXmu.a exists.
2751 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2753 if test x$HAVE_X11XTR6 = xyes; then
2754 OTHERLIBS='-lXt -lSM -lICE'
2758 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2759 if test "X$LIBS" != "X$OLDLIBS"; then
2760 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2763 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2769 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2770 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2771 if test -d /usr/include/openmotif; then
2772 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2773 emacs_cv_openmotif=yes
2774 case "$canonical" in
2775 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2776 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2779 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2782 emacs_cv_openmotif=no
2784 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2785 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2786 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2789 Motif version prior to 2.1.
2791 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2792 if test $emacs_cv_motif_version_2_1 = yes; then
2793 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2794 if test x$emacs_cv_openmotif = xyes; then
2795 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2798 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2799 # We put this in CFLAGS temporarily to precede other -I options
2800 # that might be in CFLAGS temporarily.
2801 # We put this in CPPFLAGS where it precedes the other -I options.
2802 OLD_CPPFLAGS=$CPPFLAGS
2804 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2805 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2806 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2808 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2809 if test $emacs_cv_lesstif = yes; then
2810 # Make sure this -I option remains in CPPFLAGS after it is set
2811 # back to REAL_CPPFLAGS.
2812 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2813 # have those other -I options anyway. Ultimately, having this
2814 # directory ultimately in CPPFLAGS will be enough.
2815 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2816 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2819 CPPFLAGS=$OLD_CPPFLAGS
2822 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2823 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2826 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2827 dnl using Motif or Xaw3d is available, and unless
2828 dnl --with-toolkit-scroll-bars=no was specified.
2830 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2831 [Define to 1 if we should use toolkit scroll bars.])dnl
2832 USE_TOOLKIT_SCROLL_BARS=no
2833 if test "${with_toolkit_scroll_bars}" != "no"; then
2834 if test "${USE_X_TOOLKIT}" != "none"; then
2835 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2836 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2838 USE_TOOLKIT_SCROLL_BARS=yes
2839 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2840 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2841 USE_TOOLKIT_SCROLL_BARS=yes
2843 elif test "${HAVE_GTK}" = "yes"; then
2844 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2845 USE_TOOLKIT_SCROLL_BARS=yes
2846 elif test "${HAVE_NS}" = "yes"; then
2847 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2848 USE_TOOLKIT_SCROLL_BARS=yes
2849 elif test "${HAVE_W32}" = "yes"; then
2850 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2851 USE_TOOLKIT_SCROLL_BARS=yes
2855 dnl See if XIM is available.
2856 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2857 #include <X11/Xlib.h>
2858 #include <X11/Xresource.h>]],
2859 [[XIMProc callback;]])],
2861 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2864 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2866 if test "${with_xim}" != "no"; then
2867 AC_DEFINE(USE_XIM, 1,
2868 [Define to 1 if we should use XIM, if it is available.])
2872 if test "${HAVE_XIM}" != "no"; then
2874 if test "$GCC" = yes; then
2875 CFLAGS="$CFLAGS --pedantic-errors"
2877 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2878 #include <X11/Xlib.h>
2879 #include <X11/Xresource.h>]],
2885 XPointer *client_data;
2887 /* If we're not using GCC, it's probably not XFree86, and this is
2888 probably right, but we can't use something like --pedantic-errors. */
2889 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2890 char*, XIMProc, XPointer*);
2892 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2894 [emacs_cv_arg6_star=yes])
2895 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2896 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2897 either XPointer or XPointer*.])dnl
2898 if test "$emacs_cv_arg6_star" = yes; then
2899 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2901 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2906 ### Start of font-backend (under any platform) section.
2907 # (nothing here yet -- this is a placeholder)
2908 ### End of font-backend (under any platform) section.
2910 ### Start of font-backend (under X11) section.
2911 if test "${HAVE_X11}" = "yes"; then
2912 ## Use -lXft if available, unless `--with-xft=no'.
2914 if test "x${with_x}" = "xno"; then
2918 if test "$with_xft" != no; then
2919 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2920 with_xft=$HAVE_FONTCONFIG
2923 if test "x${with_xft}" != "xno"; then
2925 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2926 ## Because xftfont.c uses XRenderQueryExtension, we also
2927 ## need to link to -lXrender.
2929 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2930 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2931 OLD_CPPFLAGS="$CPPFLAGS"
2932 OLD_CFLAGS="$CFLAGS"
2934 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2935 CFLAGS="$CFLAGS $XFT_CFLAGS"
2936 XFT_LIBS="-lXrender $XFT_LIBS"
2937 LIBS="$XFT_LIBS $LIBS"
2938 AC_CHECK_HEADER(X11/Xft/Xft.h,
2939 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2940 [[#include <X11/X.h>]])
2942 if test "${HAVE_XFT}" = "yes"; then
2943 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2945 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2946 fi # "${HAVE_XFT}" = "yes"
2947 CPPFLAGS=$OLD_CPPFLAGS
2950 fi # "$HAVE_XFT" != no
2951 fi # "x${with_xft}" != "xno"
2953 ## We used to allow building with FreeType and without Xft.
2954 ## However, the ftx font backend driver is not in good shape.
2955 if test "$HAVE_XFT" != "yes"; then
2956 dnl For the "Does Emacs use" message at the end.
2960 dnl Strict linkers fail with
2961 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2962 dnl if -lfreetype is not specified.
2963 dnl The following is needed to set FREETYPE_LIBS.
2964 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2966 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2970 if test "${HAVE_FREETYPE}" = "yes"; then
2971 AC_DEFINE(HAVE_FREETYPE, 1,
2972 [Define to 1 if using the freetype and fontconfig libraries.])
2973 if test "${with_libotf}" != "no"; then
2974 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2975 if test "$HAVE_LIBOTF" = "yes"; then
2976 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2977 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2978 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2979 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2980 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2981 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2982 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2986 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2987 dnl Does the new font backend require it, or can it work without it?
2991 if test "${HAVE_LIBOTF}" = yes; then
2992 if test "${with_m17n_flt}" != "no"; then
2993 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2994 if test "$HAVE_M17N_FLT" = "yes"; then
2995 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
3006 ### End of font-backend (under X11) section.
3008 AC_SUBST(FREETYPE_CFLAGS)
3009 AC_SUBST(FREETYPE_LIBS)
3010 AC_SUBST(FONTCONFIG_CFLAGS)
3011 AC_SUBST(FONTCONFIG_LIBS)
3012 AC_SUBST(LIBOTF_CFLAGS)
3013 AC_SUBST(LIBOTF_LIBS)
3014 AC_SUBST(M17N_FLT_CFLAGS)
3015 AC_SUBST(M17N_FLT_LIBS)
3017 ### Use -lXpm if available, unless `--with-xpm=no'.
3018 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3019 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3020 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3021 ### LDFLAGS) accordingly.
3024 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3025 if test "${with_xpm}" != "no"; then
3026 SAVE_CPPFLAGS="$CPPFLAGS"
3027 SAVE_LDFLAGS="$LDFLAGS"
3028 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3029 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3030 AC_CHECK_HEADER(X11/xpm.h,
3031 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3032 if test "${HAVE_XPM}" = "yes"; then
3033 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3034 AC_EGREP_CPP(no_return_alloc_pixels,
3035 [#include "X11/xpm.h"
3036 #ifndef XpmReturnAllocPixels
3037 no_return_alloc_pixels
3039 ], HAVE_XPM=no, HAVE_XPM=yes)
3041 if test "${HAVE_XPM}" = "yes"; then
3042 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3046 CPPFLAGS="$SAVE_CPPFLAGS"
3047 LDFLAGS="$SAVE_LDFLAGS"
3052 if test "${HAVE_XPM}" = "yes"; then
3053 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3058 if test "${HAVE_X11}" = "yes"; then
3059 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3060 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3062 if test "${with_xpm}" != "no"; then
3063 AC_CHECK_HEADER(X11/xpm.h,
3064 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3065 if test "${HAVE_XPM}" = "yes"; then
3066 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3067 AC_EGREP_CPP(no_return_alloc_pixels,
3068 [#include "X11/xpm.h"
3069 #ifndef XpmReturnAllocPixels
3070 no_return_alloc_pixels
3072 ], HAVE_XPM=no, HAVE_XPM=yes)
3074 if test "${HAVE_XPM}" = "yes"; then
3082 if test "${HAVE_XPM}" = "yes"; then
3083 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3085 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3086 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3091 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3092 ### slightly different requirements wrt image libraries (it doesn't
3093 ### use -lXpm because it loads the xpm shared library dynamically at
3095 if test "${opsys}" = "mingw32"; then
3096 if test "${with_xpm}" != "no"; then
3097 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3101 if test "${HAVE_XPM}" = "yes"; then
3102 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3108 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3109 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3112 if test "${opsys}" = "mingw32"; then
3113 if test "${with_jpeg}" != "no"; then
3114 dnl Checking for jpeglib.h can lose because of a redefinition of
3116 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3118 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3119 if test "${HAVE_JPEG}" = "yes"; then
3120 AC_DEFINE(HAVE_JPEG)
3121 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3122 [#include <jpeglib.h>
3123 version=JPEG_LIB_VERSION
3125 [AC_DEFINE(HAVE_JPEG)],
3126 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3129 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3130 if test "${with_jpeg}" != "no"; then
3131 dnl Checking for jpeglib.h can lose because of a redefinition of
3133 AC_CHECK_HEADER(jerror.h,
3134 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3137 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3138 if test "${HAVE_JPEG}" = "yes"; then
3139 AC_DEFINE(HAVE_JPEG)
3140 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3141 [#include <jpeglib.h>
3142 version=JPEG_LIB_VERSION
3144 [AC_DEFINE(HAVE_JPEG)],
3145 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3148 if test "${HAVE_JPEG}" = "yes"; then
3156 if test "${with_zlib}" != "no"; then
3158 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3160 case $ac_cv_search_inflateEnd in
3161 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3164 if test "${HAVE_ZLIB}" = "yes"; then
3165 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3166 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3167 if test "${opsys}" = "mingw32"; then
3173 ### Use -lpng if available, unless `--with-png=no'.
3177 if test "${NS_IMPL_COCOA}" = yes; then
3179 elif test "${with_png}" != no; then
3180 # mingw32 loads the library dynamically.
3181 if test "$opsys" = mingw32; then
3182 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3183 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3184 AC_MSG_CHECKING([for png])
3185 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3186 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3187 # libpng-config does not work; configure by hand.
3188 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3189 # in /usr/include/libpng.
3190 if test -r /usr/include/libpng/png.h &&
3191 test ! -r /usr/include/png.h; then
3192 png_cflags=-I/usr/include/libpng
3200 CFLAGS="$CFLAGS $png_cflags"
3201 LIBS="$png_libs -lz -lm $LIBS"
3203 [AC_LANG_PROGRAM([[#include <png.h>]],
3204 [[return !png_get_channels (0, 0);]])],
3206 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3208 # $LIBPNG requires explicit -lz in some cases.
3209 # We don't know what those cases are, exactly, so play it safe and
3210 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3211 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3212 LIBPNG="$LIBPNG -lz"
3216 AC_MSG_RESULT([$HAVE_PNG])
3219 if test $HAVE_PNG = yes; then
3220 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3223 CFLAGS="$CFLAGS $PNG_CFLAGS"
3224 AC_CHECK_DECL([png_longjmp],
3226 [AC_DEFINE([PNG_DEPSTRUCT], [],
3227 [Define to empty to suppress deprecation warnings when building
3228 with --enable-gcc-warnings and with libpng versions before 1.5,
3229 which lack png_longjmp.])],
3235 AC_SUBST(PNG_CFLAGS)
3237 ### Use -ltiff if available, unless `--with-tiff=no'.
3238 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3241 if test "${opsys}" = "mingw32"; then
3242 if test "${with_tiff}" != "no"; then
3243 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3245 if test "${HAVE_TIFF}" = "yes"; then
3246 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3248 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3249 if test "${with_tiff}" != "no"; then
3250 AC_CHECK_HEADER(tiffio.h,
3252 # At least one tiff package requires the jpeg library.
3253 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3254 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3257 if test "${HAVE_TIFF}" = "yes"; then
3258 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3259 dnl FIXME -lz -lm, as per libpng?
3265 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3266 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3269 if test "${opsys}" = "mingw32"; then
3270 if test "${with_gif}" != "no"; then
3271 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3273 if test "${HAVE_GIF}" = "yes"; then
3274 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3276 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3277 || test "${HAVE_W32}" = "yes"; then
3278 AC_CHECK_HEADER(gif_lib.h,
3279 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3280 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3281 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3282 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3284 if test "$HAVE_GIF" = yes; then
3286 elif test "$HAVE_GIF" = maybe; then
3287 # If gif_lib.h but no libgif, try libungif.
3288 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3289 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3292 if test "${HAVE_GIF}" = "yes"; then
3293 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3298 dnl Check for required libraries.
3299 if test "${HAVE_X11}" = "yes"; then
3302 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3303 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3304 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3305 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3306 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3307 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3308 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3309 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3310 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3311 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3313 if test "X${MISSING}" != X; then
3314 AC_MSG_ERROR([The following required libraries were not found:
3316 Maybe some development libraries/packages are missing?
3317 If you don't want to link with them give
3319 as options to configure])
3323 ### Use -lgpm if available, unless `--with-gpm=no'.
3326 if test "${with_gpm}" != "no"; then
3327 AC_CHECK_HEADER(gpm.h,
3328 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3330 if test "${HAVE_GPM}" = "yes"; then
3331 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3337 dnl Check for malloc/malloc.h on darwin
3338 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3341 ### Use NeXTstep API to implement GUI.
3342 if test "${HAVE_NS}" = "yes"; then
3343 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3344 if test "${NS_IMPL_COCOA}" = "yes"; then
3345 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3347 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3348 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3349 # See also .m.o rule in Makefile.in */
3350 # FIXME: are all these flags really needed? Document here why. */
3351 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3352 ## Extra CFLAGS applied to src/*.m files.
3353 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3358 ### Use session management (-lSM -lICE) if available
3361 if test "${HAVE_X11}" = "yes"; then
3362 AC_CHECK_HEADER(X11/SM/SMlib.h,
3363 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3365 if test "${HAVE_X_SM}" = "yes"; then
3366 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3372 ### Use XRandr (-lXrandr) if available
3374 if test "${HAVE_X11}" = "yes"; then
3375 XRANDR_REQUIRED=1.2.2
3376 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3377 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3378 if test $HAVE_XRANDR = no; then
3379 # Test old way in case pkg-config doesn't have it (older machines).
3380 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3381 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3382 if test $HAVE_XRANDR = yes; then
3383 XRANDR_LIBS=-lXrandr
3386 if test $HAVE_XRANDR = yes; then
3387 SAVE_CFLAGS="$CFLAGS"
3389 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3390 LIBS="$XRANDR_LIBS $LIBS"
3391 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3392 CFLAGS="$SAVE_CFLAGS"
3395 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3398 AC_SUBST(XRANDR_CFLAGS)
3399 AC_SUBST(XRANDR_LIBS)
3401 ### Use Xinerama (-lXinerama) if available
3403 if test "${HAVE_X11}" = "yes"; then
3404 XINERAMA_REQUIRED=1.0.2
3405 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3406 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3407 if test $HAVE_XINERAMA = no; then
3408 # Test old way in case pkg-config doesn't have it (older machines).
3409 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3410 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3411 if test $HAVE_XINERAMA = yes; then
3412 XINERAMA_LIBS=-lXinerama
3415 if test $HAVE_XINERAMA = yes; then
3416 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3419 AC_SUBST(XINERAMA_CFLAGS)
3420 AC_SUBST(XINERAMA_LIBS)
3422 ### Use Xfixes (-lXfixes) if available
3424 if test "${HAVE_X11}" = "yes"; then
3425 XFIXES_REQUIRED=4.0.0
3426 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3427 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3428 if test $HAVE_XFIXES = no; then
3429 # Test old way in case pkg-config doesn't have it (older machines).
3430 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3431 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3432 if test $HAVE_XFIXES = yes; then
3433 XFIXES_LIBS=-lXfixes
3436 if test $HAVE_XFIXES = yes; then
3437 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3440 AC_SUBST(XFIXES_CFLAGS)
3441 AC_SUBST(XFIXES_LIBS)
3443 ### Use libxml (-lxml2) if available
3444 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3446 if test "${with_xml2}" != "no"; then
3447 ### I'm not sure what the version number should be, so I just guessed.
3448 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3449 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3450 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3451 SAVE_CPPFLAGS="$CPPFLAGS"
3452 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3453 AC_CHECK_HEADER(libxml/HTMLparser.h,
3454 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3455 [#include <libxml/HTMLparser.h>])])
3456 CPPFLAGS="$SAVE_CPPFLAGS"
3457 if test "${HAVE_LIBXML2}" = "yes"; then
3458 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3459 LIBXML2_LIBS="-lxml2"
3462 if test "${HAVE_LIBXML2}" = "yes"; then
3463 if test "${opsys}" != "mingw32"; then
3464 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3469 if test "${HAVE_LIBXML2}" = "yes"; then
3470 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3477 AC_SUBST(LIBXML2_LIBS)
3478 AC_SUBST(LIBXML2_CFLAGS)
3480 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3481 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3482 if test "${opsys}" = "mingw32"; then
3483 emacs_cv_netdb_declares_h_errno=yes
3485 AC_CACHE_CHECK(whether netdb declares h_errno,
3486 emacs_cv_netdb_declares_h_errno,
3487 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3488 [[return h_errno;]])],
3489 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3490 if test $emacs_cv_netdb_declares_h_errno = yes; then
3491 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3494 # Check for mail-locking functions in a "mail" library. Probably this should
3495 # have the same check as for liblockfile below.
3496 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3497 if test $have_mail = yes; then
3499 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3502 LIBS="$LIBS_MAIL $LIBS"
3503 AC_CHECK_FUNCS(touchlock)
3508 dnl Debian, at least:
3509 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3510 if test $have_lockfile = yes; then
3511 LIBS_MAIL=-llockfile
3512 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3514 # If we have the shared liblockfile, assume we must use it for mail
3515 # locking (e.g. Debian). If we couldn't link against liblockfile
3516 # (no liblockfile.a installed), ensure that we don't need to.
3517 dnl This works for files generally, not just executables.
3518 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3519 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3520 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3521 if test $ac_cv_prog_liblockfile = yes; then
3522 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3523 This probably means that movemail could lose mail.
3524 There may be a `development' package to install containing liblockfile.])
3527 AC_CHECK_HEADERS_ONCE(maillock.h)
3530 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3531 ## interlock access to the mail spool. The alternative is a lock file named
3532 ## /usr/spool/mail/$USER.lock.
3535 aix4-2) mail_lock="lockf" ;;
3537 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3539 ## On GNU/Linux systems, both methods are used by various mail programs.
3540 ## I assume most people are using newer mailers that have heard of flock.
3541 ## Change this if you need to.
3542 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3543 ## configure gets the right answers, and that means *NOT* using flock.
3544 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3545 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3546 ## Debian maintainer hasn't provided a clean fix for Emacs.
3547 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3548 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3549 ## correct logic. -- fx
3550 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3551 ## liblockfile is a Free Software replacement for libmail, used on
3552 ## Debian systems and elsewhere. -rfr.
3555 if test $have_mail = yes || test $have_lockfile = yes; then
3556 test $ac_cv_header_maillock_h = yes && mail_lock=no
3561 mail_lock="none-needed" ;;
3565 case "$mail_lock" in
3566 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3568 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3572 *) BLESSMAIL_TARGET="need-blessmail" ;;
3574 AC_SUBST(BLESSMAIL_TARGET)
3577 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3578 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3579 getrusage get_current_dir_name \
3580 lrand48 random rint \
3581 select getpagesize setlocale newlocale \
3582 getrlimit setrlimit shutdown getaddrinfo \
3583 pthread_sigmask strsignal setitimer \
3584 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3586 getpwent endpwent getgrent endgrent \
3587 cfmakeraw cfsetspeed copysign __executable_start log2)
3590 dnl No need to check for aligned_alloc and posix_memalign if using
3591 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3592 dnl Don't use these functions on Darwin as they are incompatible with
3594 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3595 && test "$opsys" != darwin; then
3596 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3599 dnl Cannot use AC_CHECK_FUNCS
3600 AC_CACHE_CHECK([for __builtin_unwind_init],
3601 emacs_cv_func___builtin_unwind_init,
3602 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3603 emacs_cv_func___builtin_unwind_init=yes,
3604 emacs_cv_func___builtin_unwind_init=no)])
3605 if test $emacs_cv_func___builtin_unwind_init = yes; then
3606 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3607 [Define to 1 if you have the `__builtin_unwind_init' function.])
3610 AC_CHECK_HEADERS_ONCE(sys/un.h)
3615 AC_CHECK_FUNCS(grantpt)
3617 # PTY-related GNU extensions.
3618 AC_CHECK_FUNCS(getpt posix_openpt)
3620 # Check this now, so that we will NOT find the above functions in ncurses.
3621 # That is because we have not set up to link ncurses in lib-src.
3622 # It's better to believe a function is not available
3623 # than to expect to find it in ncurses.
3624 # Also we need tputs and friends to be able to build at all.
3625 AC_MSG_CHECKING([for library containing tputs])
3626 # Run a test program that contains a call to tputs, a call that is
3627 # never executed. This tests whether a pre-'main' dynamic linker
3628 # works with the library. It's too much trouble to actually call
3629 # tputs in the test program, due to portability hassles. When
3630 # cross-compiling, assume the test program will run if it links.
3631 AC_DEFUN([tputs_link_source], [
3633 [[extern void tputs (const char *, int, int (*)(int));
3634 int main (int argc, char **argv)
3637 tputs (argv[0], 0, 0);
3641 if test "${opsys}" = "mingw32"; then
3644 # Maybe curses should be tried earlier?
3645 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3646 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3648 if test -z "$tputs_library"; then
3652 LIBS_TERMCAP=-l$tputs_library
3654 LIBS="$LIBS_TERMCAP $LIBS"
3656 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3657 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3659 if test "X$msg" != Xno; then
3664 AC_MSG_RESULT([$msg])
3665 if test "X$msg" = Xno; then
3666 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3667 The following libraries were tried (in order):
3668 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3669 Please try installing whichever of these libraries is most appropriate
3670 for your system, together with its header files.
3671 For example, a libncurses-dev(el) or similar package.])
3674 ## Use termcap instead of terminfo?
3675 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3677 ## FIXME? In the cases below where we unconditionally set
3678 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3679 ## if that was found above to have tputs.
3680 ## Should we use the gnu* logic everywhere?
3682 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3683 ## The ncurses library has been moved out of the System framework in
3684 ## Mac OS X 10.2. So if configure detects it, set the command-line
3685 ## option to use it.
3686 darwin) LIBS_TERMCAP="-lncurses" ;;
3688 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3691 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3692 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3693 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3694 [[#if __FreeBSD_version < 400000
3697 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3699 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3701 if test $emacs_cv_freebsd_terminfo = yes; then
3702 LIBS_TERMCAP="-lncurses"
3705 LIBS_TERMCAP="-ltermcap"
3715 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3717 LIBS_TERMCAP="-ltermcap"
3721 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3723 ## hpux: Make sure we get select from libc rather than from libcurses
3724 ## because libcurses on HPUX 10.10 has a broken version of select.
3725 ## We used to use -lc -lcurses, but this may be cleaner.
3726 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3727 # set that way, now it uses the default). Isn't this a contradiction?
3728 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3732 TERMCAP_OBJ=tparam.o
3733 if test $TERMINFO = yes; then
3734 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3735 TERMCAP_OBJ=terminfo.o
3737 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3738 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3740 AC_SUBST(LIBS_TERMCAP)
3741 AC_SUBST(TERMCAP_OBJ)
3743 # GNU/Linux-specific timer functions.
3744 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3746 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3748 [[timerfd_create (CLOCK_REALTIME,
3749 TFD_CLOEXEC | TFD_NONBLOCK);
3750 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3751 [emacs_cv_have_timerfd=yes],
3752 [emacs_cv_have_timerfd=no])])
3753 if test "$emacs_cv_have_timerfd" = yes; then
3754 AC_DEFINE([HAVE_TIMERFD], 1,
3755 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3758 # Alternate stack for signal handlers.
3759 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3760 [emacs_cv_alternate_stack],
3762 [AC_LANG_PROGRAM([[#include <signal.h>
3765 struct sigaction sa;
3766 ss.ss_sp = malloc (SIGSTKSZ);
3767 ss.ss_size = SIGSTKSZ;
3768 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3769 sigaltstack (&ss, 0);
3770 sigaction (SIGSEGV, &sa, 0);]])],
3771 [emacs_cv_alternate_stack=yes],
3772 [emacs_cv_alternate_stack=no])])
3774 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3775 # On Darwin, res_init appears not to be useful: see bug#562 and
3776 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3779 if test $opsys != darwin; then
3781 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3782 #include <arpa/nameser.h>
3783 #include <resolv.h>]],
3784 [[return res_init();]])],
3785 have_res_init=yes, have_res_init=no)
3786 if test "$have_res_init" = no; then
3788 LIBS="$LIBS -lresolv"
3789 AC_MSG_CHECKING(for res_init with -lresolv)
3790 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3791 #include <arpa/nameser.h>
3792 #include <resolv.h>]],
3793 [[return res_init();]])],
3794 have_res_init=yes, have_res_init=no)
3795 AC_MSG_RESULT($have_res_init)
3796 if test "$have_res_init" = yes ; then
3802 if test "$have_res_init" = yes; then
3803 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3807 # Do we need the Hesiod library to provide the support routines?
3808 dnl FIXME? Should we be skipping this on Darwin too?
3810 if test "$with_hesiod" != no ; then
3811 # Don't set $LIBS here -- see comments above. FIXME which comments?
3812 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3813 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3814 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3815 if test "$resolv" = yes ; then
3820 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3821 hesiod=yes, :, $RESOLVLIB)])
3823 if test x"$hesiod" = xyes; then
3829 # Do we need libresolv (due to res_init or Hesiod)?
3830 if test "$resolv" = yes && test $opsys != darwin; then
3837 # These tell us which Kerberos-related libraries to use.
3844 if test "${with_kerberos}" != no; then
3846 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3847 if test $have_com_err = yes; then
3848 COM_ERRLIB=-lcom_err
3849 LIBS="$COM_ERRLIB $LIBS"
3851 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3852 if test $have_crypto = yes; then
3854 LIBS="$CRYPTOLIB $LIBS"
3856 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3857 if test $have_k5crypto = yes; then
3858 CRYPTOLIB=-lk5crypto
3859 LIBS="$CRYPTOLIB $LIBS"
3861 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3862 if test $have_krb5=yes; then
3864 LIBS="$KRB5LIB $LIBS"
3866 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3867 if test "${with_kerberos5}" = no; then
3868 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3869 if test $have_des425 = yes; then
3871 LIBS="$DESLIB $LIBS"
3873 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3874 if test $have_des = yes; then
3876 LIBS="$DESLIB $LIBS"
3879 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3880 if test $have_krb4 = yes; then
3882 LIBS="$KRB4LIB $LIBS"
3884 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3885 if test $have_krb = yes; then
3887 LIBS="$KRB4LIB $LIBS"
3892 if test "${with_kerberos5}" != no; then
3893 AC_CHECK_HEADERS(krb5.h,
3894 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3895 [#include <krb5.h>])])
3897 AC_CHECK_HEADERS(krb.h,,
3898 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3899 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3901 AC_CHECK_HEADERS(com_err.h)
3905 AC_SUBST(COM_ERRLIB)
3911 AC_CHECK_HEADERS(valgrind/valgrind.h)
3913 AC_CHECK_FUNCS_ONCE(tzset)
3914 AC_MSG_CHECKING(whether localtime caches TZ)
3915 AC_CACHE_VAL(emacs_cv_localtime_cache,
3916 [if test x$ac_cv_func_tzset = xyes; then
3917 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3918 char TZ_GMT0[] = "TZ=GMT0";
3919 char TZ_PST8[] = "TZ=PST8";
3922 time_t now = time ((time_t *) 0);
3923 int hour_GMT0, hour_unset;
3924 if (putenv (TZ_GMT0) != 0)
3926 hour_GMT0 = localtime (&now)->tm_hour;
3928 hour_unset = localtime (&now)->tm_hour;
3929 if (putenv (TZ_PST8) != 0)
3931 if (localtime (&now)->tm_hour == hour_GMT0)
3934 if (localtime (&now)->tm_hour != hour_unset)
3937 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3938 [# If we have tzset, assume the worst when cross-compiling.
3939 emacs_cv_localtime_cache=yes])
3941 # If we lack tzset, report that localtime does not cache TZ,
3942 # since we can't invalidate the cache if we don't have tzset.
3943 emacs_cv_localtime_cache=no
3945 AC_MSG_RESULT($emacs_cv_localtime_cache)
3946 if test $emacs_cv_localtime_cache = yes; then
3947 AC_DEFINE(LOCALTIME_CACHE, 1,
3948 [Define to 1 if localtime caches TZ.])
3952 AC_CHECK_FUNC(socket, , ok_so_far=no)
3953 if test $ok_so_far = yes; then
3954 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3956 if test $ok_so_far = yes; then
3957 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3959 if test $ok_so_far = yes; then
3960 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3961 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3962 [Define to 1 if you have inet sockets.])
3967 AC_CHECK_FUNCS(snprintf)
3969 dnl Check for glib. This differs from other library checks in that
3970 dnl Emacs need not link to glib unless some other library is already
3971 dnl linking to glib. Although glib provides no facilities that Emacs
3972 dnl needs for its own purposes, when glib is present Emacs needs to
3973 dnl use primitives like g_main_context_query to avoid clashing with
3974 dnl glib at a low level.
3976 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3980 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3981 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3982 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3983 LIBS="$LIBS $GFILENOTIFY_LIBS"
3984 AC_MSG_CHECKING([whether GLib is linked in])
3985 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3988 [[g_print ("Hello world");]])],
3991 AC_MSG_RESULT([$links_glib])
3992 if test "${links_glib}" = "yes"; then
3993 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3994 if test "$HAVE_NS" = no;then
4002 dnl Adapted from Haible's version.
4003 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
4004 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
4005 [[char* cs = nl_langinfo(CODESET);]])],
4006 emacs_cv_langinfo_codeset=yes,
4007 emacs_cv_langinfo_codeset=no)
4009 if test $emacs_cv_langinfo_codeset = yes; then
4010 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
4011 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
4016 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
4017 dnl how the tty code is related to POSIX and/or other versions of termios.
4018 dnl The following looks like a useful start.
4020 dnl AC_SYS_POSIX_TERMIOS
4021 dnl if test $ac_cv_sys_posix_termios = yes; then
4022 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
4023 dnl and macros for terminal control.])
4024 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
4027 dnl Turned on June 1996 supposing nobody will mind it.
4028 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
4029 if test "${opsys}" != "mingw32"; then
4030 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
4031 in the full name stands for the login id.])
4034 dnl Everybody supports this, except MS.
4035 dnl Seems like the kind of thing we should be testing for, though.
4036 ## Note: PTYs are broken on darwin <6. Use at your own risk.
4037 if test "${opsys}" != "mingw32"; then
4038 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
4041 dnl Everybody supports this, except MS-DOS.
4042 dnl Seems like the kind of thing we should be testing for, though.
4043 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
4044 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
4045 4.2-compatible sockets.])
4047 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4049 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4050 a null file, or a data sink.])
4051 if test "${opsys}" = "mingw32"; then
4052 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4054 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4057 if test "${opsys}" = "mingw32"; then
4062 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4063 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4064 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4065 dnl decides that a command-line argument to be passed to a MinGW program
4066 dnl is a PATH-style list of directories. But that heuristics plays it
4067 dnl safe, and only does the replacement when it is _absolutely_ sure it
4068 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4069 dnl which breaks in-tree builds. So we do this manually instead.
4070 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4071 dnl be computed as ':' in MSYS Bash.
4074 dnl Everybody supports this, except MS-DOS.
4075 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4077 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4080 AC_DEFINE(DIRECTORY_SEP, ['/'],
4081 [Character that separates directories in a file name.])
4083 if test "${opsys}" = "mingw32"; then
4084 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4085 [Returns true if character is a device separator.])
4087 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4088 [Returns true if character is a directory separator.])
4090 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4091 [Returns true if character is any form of separator.])
4093 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4094 [Returns true if character is a device separator.])
4096 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4097 [Returns true if character is a directory separator.])
4099 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4100 [Returns true if character is any form of separator.])
4103 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4107 dnl Unfortunately without libXmu we cannot support EditRes.
4108 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4109 AC_DEFINE(NO_EDITRES, 1)
4114 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4115 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4116 AC_DEFINE(NO_EDITRES, 1)
4122 irix6-5 | sol2* | unixware )
4123 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4124 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4125 dnl need the constant to dimension an array. So wire in the appropriate
4127 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4131 emacs_broken_SIGIO=no
4134 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4135 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4136 hpux* | irix6-5 | openbsd | sol2* | unixware )
4137 emacs_broken_SIGIO=yes
4141 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4142 dnl the way this system works, libc functions that return malloced
4143 dnl memory use the libc malloc implementation. Calling xfree or
4144 dnl xrealloc on the results of such functions results in a crash.
4146 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4147 dnl but that does not currently work on this system.
4149 dnl It is possible to completely override the malloc implementation on
4150 dnl AIX, but that involves putting the malloc functions in a shared
4151 dnl library and setting the MALLOCTYPE environment variable to point to
4152 dnl that shared library.
4154 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4155 dnl to avoid a crash just use the Emacs implementation for that function.
4157 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4158 dnl of this file, so that we do not check for get_current_dir_name
4159 dnl on AIX. But that might be fragile if something else ends
4160 dnl up testing for get_current_dir_name as a dependency.
4161 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4162 get_current_dir_name should not be used.])
4166 dnl Circumvent a bug in FreeBSD. In the following sequence of
4167 dnl writes/reads on a PTY, read(2) returns bogus data:
4169 dnl write(2) 1022 bytes
4170 dnl write(2) 954 bytes, get EAGAIN
4171 dnl read(2) 1024 bytes in process_read_output
4172 dnl read(2) 11 bytes in process_read_output
4174 dnl That is, read(2) returns more bytes than have ever been written
4175 dnl successfully. The 1033 bytes read are the 1022 bytes written
4176 dnl successfully after processing (for example with CRs added if the
4177 dnl terminal is set up that way which it is here). The same bytes will
4178 dnl be seen again in a later read(2), without the CRs.
4179 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4180 work around an issue when reading from a PTY.])
4186 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4187 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4192 darwin | dragonfly | freebsd | netbsd | openbsd )
4193 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4194 close a pty to make it a controlling terminal (it is already a
4195 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4199 dnl FIXME Surely we can test for this rather than hard-code it.
4201 netbsd | openbsd) sound_device="/dev/audio" ;;
4202 *) sound_device="/dev/dsp" ;;
4206 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4207 [Name of the default sound device.])
4210 dnl Emacs can read input using SIGIO and buffering characters itself,
4211 dnl or using CBREAK mode and making C-g cause SIGINT.
4212 dnl The choice is controlled by the variable interrupt_input.
4214 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4216 dnl Emacs uses the presence of the USABLE_SIGIO macro
4217 dnl to indicate whether or not signal-driven I/O is possible. It uses
4218 dnl INTERRUPT_INPUT to decide whether to use it by default.
4220 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4221 dnl CBREAK mode has two disadvantages
4222 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4223 dnl I hear that in system V this problem does not exist.
4224 dnl 2) Control-G causes output to be discarded.
4225 dnl I do not know whether this can be fixed in system V.
4227 dnl Another method of doing input is planned but not implemented.
4228 dnl It would have Emacs fork off a separate process
4229 dnl to read the input and send it to the true Emacs process
4232 darwin | gnu-linux | gnu-kfreebsd )
4233 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4238 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4239 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4240 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4241 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4242 dnl taking float or double parameters.
4244 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4245 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4246 file defines `NeedWidePrototypes' as `NO'.])
4251 dnl Used in process.c, this must be a loop, even if it only runs once.
4252 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4253 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4254 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4255 dnl trying suffixes 0-16.
4256 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4257 first PTY, if PTYs are supported.])
4258 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4259 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4260 end of a PTY, if non-standard.])
4261 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4262 end of a PTY, if non-standard.])
4266 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4267 dnl You allocate a pty by opening /dev/ptc to get the master side.
4268 dnl To get the name of the slave side, you just ttyname() the master side.
4269 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4270 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4274 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4275 dnl multi-line AC_DEFINEs are hard. :(
4276 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)])
4277 AC_DEFINE(PTY_NAME_SPRINTF, [])
4278 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4281 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4283 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4284 dnl Not used, because PTY_ITERATION is defined.
4285 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4286 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4287 dnl But we don't have to block SIGCHLD because it is blocked in the
4288 dnl implementation of grantpt.
4289 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4290 AC_DEFINE(PTY_NAME_SPRINTF, [])
4291 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4295 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4298 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4300 if test "x$ac_cv_func_grantpt" = xyes; then
4301 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4302 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4303 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4304 dnl to prevent sigchld_handler from intercepting the child's death.
4305 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); }])
4306 dnl if HAVE_POSIX_OPENPT
4307 if test "x$ac_cv_func_posix_openpt" = xyes; then
4308 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4309 AC_DEFINE(PTY_NAME_SPRINTF, [])
4311 elif test "x$ac_cv_func_getpt" = xyes; then
4312 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4313 AC_DEFINE(PTY_NAME_SPRINTF, [])
4315 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4318 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4323 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4324 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4325 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4329 dnl It looks like this cannot be right, because it is not a loop.
4330 dnl However, process.c actually does this:
4336 dnl which presumably makes it OK, since irix == sgi (?).
4337 dnl FIXME it seems like this special treatment is unnecessary?
4338 dnl Why can't irix use a single-trip loop like eg cygwin?
4339 AC_DEFINE(PTY_ITERATION, [])
4340 dnl Not used, because PTY_ITERATION is defined.
4341 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4342 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); }])
4343 dnl No need to get the pty name at all.
4344 AC_DEFINE(PTY_NAME_SPRINTF, [])
4345 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4346 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4350 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4351 dnl from intercepting that death. If any child but grantpt's should die
4352 dnl within, it should be caught after sigrelse(2).
4353 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); }])
4357 dnl Comments are as per sol2*.
4358 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); }])
4365 dnl This change means that we don't loop through allocate_pty too
4366 dnl many times in the (rare) event of a failure.
4367 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4368 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4369 dnl Push various streams modules onto a PTY channel. Used in process.c.
4370 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.])
4375 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4376 "typing" a signal character on the pty.])
4379 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4380 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4381 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4382 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4385 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4386 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4387 gnu-linux | gnu-kfreebsd )
4389 AC_MSG_CHECKING([for signals via characters])
4390 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4391 #include <linux/version.h>
4392 #if LINUX_VERSION_CODE < 0x20400
4393 # error "Linux version too old"
4395 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4397 AC_MSG_RESULT([$emacs_signals_via_chars])
4398 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4403 AH_TEMPLATE(TAB3, [Undocumented.])
4406 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4408 gnu | dragonfly | freebsd | netbsd | openbsd )
4409 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4410 AC_DEFINE(TAB3, OXTABS)
4413 gnu-linux | gnu-kfreebsd )
4414 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4418 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4419 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4420 [Mark a secondary stack, like the register stack on the ia64.]), [])
4424 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4425 run_time_remap; for HPUX.])
4430 dnl This won't be used automatically yet. We also need to know, at least,
4431 dnl that the stack is continuous.
4432 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4433 registers relevant for conservative garbage collection in the jmp_buf.])
4437 dnl Not all the architectures are tested, but there are Debian packages
4438 dnl for SCM and/or Guile on them, so the technique must work. See also
4439 dnl comments in alloc.c concerning setjmp and gcc.
4440 dnl Fixme: it's probably safe to just use the GCC conditional below.
4441 gnu-linux | gnu-kfreebsd )
4442 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4443 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4444 || defined __alpha__ || defined __mips__ || defined __s390__ \
4445 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4446 || defined __ia64__ || defined __sh__
4449 # error "setjmp not known to work on this arch"
4451 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4456 if test x$GCC = xyes; then
4457 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4458 AC_DEFINE(GC_SETJMP_WORKS, 1)
4461 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4462 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4463 AC_DEFINE(GC_SETJMP_WORKS, 1)
4468 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4469 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4472 [[#include <setjmp.h>
4474 # define _longjmp longjmp
4479 _longjmp (j, 1);]])],
4480 [emacs_cv_func__setjmp=yes],
4481 [emacs_cv_func__setjmp=no])])
4482 if test $emacs_cv_func__setjmp = yes; then
4483 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4486 # We need to preserve signal mask to handle C stack overflows.
4487 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4490 [[#include <setjmp.h>
4493 if (! sigsetjmp (j, 1))
4494 siglongjmp (j, 1);]])],
4495 [emacs_cv_func_sigsetjmp=yes],
4496 [emacs_cv_func_sigsetjmp=no])])
4497 if test $emacs_cv_func_sigsetjmp = yes; then
4498 AC_DEFINE([HAVE_SIGSETJMP], 1,
4499 [Define to 1 if sigsetjmp and siglongjmp work.])
4502 # We need all of these features to handle C stack overflows.
4503 if test "$ac_cv_header_sys_resource_h" = "yes" -a \
4504 "$ac_cv_func_getrlimit" = "yes" -a \
4505 "$emacs_cv_func_sigsetjmp" = "yes" -a \
4506 "$emacs_cv_alternate_stack" = yes; then
4507 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4508 [Define to 1 if C stack overflow can be handled in some cases.])
4513 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4514 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4515 dnl and this is all we need.
4516 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4523 dnl Used in xfaces.c.
4524 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4525 some systems, where it requires time.h.])
4530 dnl Define symbols to identify the version of Unix this is.
4531 dnl Define all the symbols that apply correctly.
4532 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4533 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4534 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4535 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4540 dnl This symbol should be defined on AIX Version 3 ???????
4541 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4543 # error "_AIX not defined"
4545 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4549 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4553 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4554 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4555 dnl distinguish OS X from pure Darwin.
4556 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4559 gnu-linux | gnu-kfreebsd )
4561 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4566 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4571 AC_DEFINE(USG5_4, [])
4572 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4576 AC_DEFINE(DOS_NT, [])
4577 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4578 if test "x$ac_enable_checking" != "x" ; then
4579 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4585 AC_DEFINE(USG5_4, [])
4586 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4591 AC_DEFINE(USG5_4, [])
4595 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4598 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4599 emacs_cv_usable_FIONREAD=no
4603 emacs_cv_usable_FIONREAD=yes
4608 [AC_LANG_PROGRAM([[#include <sys/types.h>
4609 #include <sys/ioctl.h>
4611 # include <sys/filio.h>
4614 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4615 [emacs_cv_usable_FIONREAD=yes],
4616 [emacs_cv_usable_FIONREAD=no])
4619 if test $emacs_cv_usable_FIONREAD = yes; then
4620 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4622 if test $emacs_broken_SIGIO = no; then
4623 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4625 [AC_LANG_PROGRAM([[#include <fcntl.h>
4628 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4629 [emacs_cv_usable_SIGIO=yes],
4630 [emacs_cv_usable_SIGIO=no])],
4631 [emacs_cv_usable_SIGIO=yes],
4632 [emacs_cv_usable_SIGIO=no])
4633 if test $emacs_cv_usable_SIGIO = yes; then
4634 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4641 dnl It works to open the pty's tty in the parent (Emacs), then
4642 dnl close and reopen it in the child.
4643 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4644 works to open a pty's tty in the parent process, then close and
4645 reopen it in the child.])
4649 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4650 use VSUSP instead of VSWTCH.])
4654 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4659 # Set up the CFLAGS for real compilation, so we can substitute it.
4660 CFLAGS="$REAL_CFLAGS"
4661 CPPFLAGS="$REAL_CPPFLAGS"
4664 ## Hack to detect a buggy GCC version.
4665 if test "x$GCC" = xyes \
4666 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4667 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4668 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4669 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4672 version=$PACKAGE_VERSION
4674 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4675 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4676 [Short copyright string for this version of Emacs.])
4679 ### Specify what sort of things we'll be editing into Makefile and config.h.
4680 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4682 AC_SUBST(configuration)
4687 AC_SUBST(exec_prefix)
4690 AC_SUBST(sharedstatedir)
4691 AC_SUBST(libexecdir)
4695 AC_SUBST(standardlisppath)
4696 AC_SUBST(locallisppath)
4698 AC_SUBST(x_default_search_path)
4700 AC_SUBST(archlibdir)
4705 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4706 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4707 ## end of LIBX_BASE, but nothing ever set it.
4708 AC_SUBST(LD_SWITCH_X_SITE)
4709 AC_SUBST(C_SWITCH_X_SITE)
4710 AC_SUBST(GNUSTEP_CFLAGS)
4712 ## Used in lwlib/Makefile.in.
4713 AC_SUBST(X_TOOLKIT_TYPE)
4715 AC_SUBST(ns_appbindir)
4716 AC_SUBST(ns_appresdir)
4718 AC_SUBST(GNU_OBJC_CFLAGS)
4719 AC_SUBST(OTHER_FILES)
4721 if test -n "${term_header}"; then
4722 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4723 [Define to the header for the built-in window system.])
4726 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4727 [Define to the canonical Emacs configuration name.])
4728 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4729 [Define to the options passed to configure.])
4730 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4731 define this to include extra configuration information.])
4735 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4742 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4743 AC_DEFINE(HAVE_X_WINDOWS, 1,
4744 [Define to 1 if you want to use the X window system.])
4746 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4748 if test "$HAVE_XFT" = "yes"; then
4749 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4750 elif test "$HAVE_FREETYPE" = "yes"; then
4751 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4761 if test "${USE_X_TOOLKIT}" != "none" ; then
4763 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4764 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4765 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4766 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4767 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4771 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4772 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4776 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4777 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4778 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4782 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4783 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4786 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4789 AC_SUBST(WIDGET_OBJ)
4792 case "$USE_X_TOOLKIT" in
4793 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4794 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4795 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4797 AC_SUBST(TOOLKIT_LIBW)
4799 if test "${opsys}" != "mingw32"; then
4800 if test "$USE_X_TOOLKIT" = "none"; then
4801 LIBXT_OTHER="\$(LIBXSM)"
4803 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4806 AC_SUBST(LIBXT_OTHER)
4808 if test "${HAVE_X11}" = "yes" ; then
4809 AC_DEFINE(HAVE_X11, 1,
4810 [Define to 1 if you want to use version 11 of X windows.])
4811 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4815 AC_SUBST(LIBX_OTHER)
4817 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4819 elif test "$USE_X_TOOLKIT" = none; then
4820 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4822 LIBXMENU='$(lwlibdir)/liblw.a'
4826 AC_CACHE_CHECK([for struct alignment],
4827 [emacs_cv_struct_alignment],
4829 [AC_LANG_PROGRAM([[#include <stddef.h>
4830 struct __attribute__ ((aligned (8))) s { char c; };
4831 struct t { char c; struct s s; };
4832 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
4834 [emacs_cv_struct_alignment=yes],
4835 [emacs_cv_struct_alignment=no])])
4836 if test "$emacs_cv_struct_alignment" = yes; then
4837 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
4838 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
4839 structure to an N-byte boundary.])
4842 if test "${GNU_MALLOC}" = "yes" ; then
4843 AC_DEFINE(GNU_MALLOC, 1,
4844 [Define to 1 if you want to use the GNU memory allocator.])
4848 if test "${REL_ALLOC}" = "yes" ; then
4849 AC_DEFINE(REL_ALLOC, 1,
4850 [Define REL_ALLOC if you want to use the relocating allocator for
4853 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4855 AC_SUBST(RALLOC_OBJ)
4857 if test "$opsys" = "cygwin"; then
4858 CYGWIN_OBJ="sheap.o cygw32.o"
4859 ## Cygwin differs because of its unexec().
4861 POST_ALLOC_OBJ=lastfile.o
4862 elif test "$opsys" = "mingw32"; then
4865 POST_ALLOC_OBJ=lastfile.o
4868 PRE_ALLOC_OBJ=lastfile.o
4871 AC_SUBST(CYGWIN_OBJ)
4872 AC_SUBST(PRE_ALLOC_OBJ)
4873 AC_SUBST(POST_ALLOC_OBJ)
4875 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4876 dnl verbatim defined above. The tricky name is apropos, as this hack
4877 dnl makes Fortify go sour!
4878 AH_VERBATIM([FORTIFY_SOUR],
4879 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4880 The workaround disables some useful run-time checking, so it
4881 should be conditional to the platforms with the performance bug.
4882 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4883 #if defined __APPLE__ && defined __GNUC__
4884 # ifndef _DONT_USE_CTYPE_INLINE_
4885 # define _DONT_USE_CTYPE_INLINE_
4887 # ifndef _FORTIFY_SOURCE
4888 # define _FORTIFY_SOURCE 0
4893 # If user asks to omit features, disable optional features that gnulib
4894 # might otherwise enable.
4895 if test "$with_features" = no && test "$enable_acl" != yes; then
4899 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4900 # it temporarily reverts them to their pre-pkg-config values,
4901 # because gnulib needs to work with both src (which uses the
4902 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4903 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4904 # and it therefore needs to run in an environment where LIBS does not
4905 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4906 # for some package unrelated to lib-src.
4909 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4910 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4911 gl_ASSERT_NO_GNULIB_POSIXCHECK
4912 gl_ASSERT_NO_GNULIB_TESTS
4917 if test "${opsys}" = "mingw32"; then
4918 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4919 # Remove unneeded switches from the value of CC that goes to Makefiles
4920 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4924 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4927 ## The -headerpad option tells ld (see man page) to leave room at the
4928 ## end of the header for adding load commands. Needed for dumping.
4929 ## 0x1000 is enough for roughly 52 load commands on the x86_64
4930 ## architecture (where they are 78 bytes each). The actual number of
4931 ## load commands added is not consistent but normally ranges from
4932 ## about 14 to about 34. Setting it high gets us plenty of slop and
4933 ## only costs about 1.5K of wasted binary space.
4934 headerpad_extra=1000
4935 if test "$HAVE_NS" = "yes"; then
4936 libs_nsgui="-framework AppKit"
4937 if test "$NS_IMPL_COCOA" = "yes"; then
4938 libs_nsgui="$libs_nsgui -framework IOKit"
4943 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4945 ## This is here because src/Makefile.in did some extra fiddling around
4946 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4947 ## LD_SWITCH_SYSTEM_TEMACS instead,
4948 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4949 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4952 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4953 ## find X at run-time.
4954 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4955 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4956 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4957 ## had different values in configure (in ac_link) and src/Makefile.in.
4958 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4959 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4962 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4963 case "$canonical" in
4964 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4965 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4969 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4971 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4974 if test x$ac_enable_profiling != x ; then
4976 *freebsd | gnu-linux) ;;
4977 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4981 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4983 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4985 ## Common for all window systems
4986 if test "$window_system" != "none"; then
4987 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4988 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4989 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4992 AC_SUBST(WINDOW_SYSTEM_OBJ)
4994 AH_TOP([/* GNU Emacs site configuration template file.
4996 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4997 Free Software Foundation, Inc.
4999 This file is part of GNU Emacs.
5001 GNU Emacs is free software: you can redistribute it and/or modify
5002 it under the terms of the GNU General Public License as published by
5003 the Free Software Foundation, either version 3 of the License, or
5004 (at your option) any later version.
5006 GNU Emacs is distributed in the hope that it will be useful,
5007 but WITHOUT ANY WARRANTY; without even the implied warranty of
5008 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5009 GNU General Public License for more details.
5011 You should have received a copy of the GNU General Public License
5012 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
5015 /* No code in Emacs #includes config.h twice, but some bits of code
5016 intended to work with other packages as well (like gmalloc.c)
5017 think they can include it as many times as they like. */
5018 #ifndef EMACS_CONFIG_H
5019 #define EMACS_CONFIG_H
5022 AH_BOTTOM([#include <conf_post.h>
5024 #endif /* EMACS_CONFIG_H */
5033 #### Report on what we decided to do.
5034 #### Report GTK as a toolkit, even if it doesn't use Xt.
5035 #### It makes printing result more understandable as using GTK sets
5036 #### toolkit_scroll_bars to yes by default.
5037 if test "${HAVE_GTK}" = "yes"; then
5038 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
5041 if test $USE_ACL -ne 0; then
5042 ACL_SUMMARY="yes $LIB_ACL"
5048 Configured for \`${canonical}'.
5050 Where should the build process find the source code? ${srcdir}
5051 What compiler should emacs be built with? ${CC} ${CFLAGS}
5052 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5053 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5054 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5055 What window system should Emacs use? ${window_system}
5056 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5058 if test -n "${x_includes}"; then
5059 echo " Where do we find X Windows header files? ${x_includes}"
5061 echo " Where do we find X Windows header files? Standard dirs"
5063 if test -n "${x_libraries}"; then
5064 echo " Where do we find X Windows libraries? ${x_libraries}"
5066 echo " Where do we find X Windows libraries? Standard dirs"
5070 emacs_config_features=
5071 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
5072 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5076 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5077 *) eval val=\${HAVE_$opt} ;;
5079 test x"$val" = xno && continue
5080 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5083 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5084 [Summary of some of the main features enabled by configure.])
5086 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5087 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5088 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5089 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5090 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5091 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5092 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5093 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5095 echo " Does Emacs support sound? ${HAVE_SOUND}"
5097 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5098 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5099 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5100 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5101 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5102 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5103 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5104 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5105 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5107 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5108 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5109 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5110 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5111 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5113 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5116 if test -n "${EMACSDATA}"; then
5117 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5119 if test -n "${EMACSDOC}"; then
5120 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5125 if test "$HAVE_NS" = "yes"; then
5127 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5128 The installed application will go to nextstep/Emacs.app and can be
5129 run or moved from there."
5130 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5131 echo "The application will be fully self-contained."
5133 echo "The lisp resources for the application will be installed under ${prefix}.
5134 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5135 to run if these resources are not installed."
5140 if test "${opsys}" = "cygwin"; then
5142 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5148 # Remove any trailing slashes in these variables.
5149 [test "${prefix}" != NONE &&
5150 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5151 test "${exec_prefix}" != NONE &&
5152 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5154 if test "$HAVE_NS" = "yes"; then
5155 if test "$NS_IMPL_GNUSTEP" = yes; then
5156 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5157 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5158 ns_check_file=Resources/Info-gnustep.plist
5160 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5161 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5162 ns_check_file=Contents/Info.plist
5164 AC_SUBST(ns_check_file)
5167 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5168 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5169 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5170 dnl (else you get "no `Makefile.am' found for any configure output").
5171 dnl This will work, but you get a config.status that is not quite right
5172 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5173 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5174 dnl it seems better to just live with the duplication.
5175 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5177 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5178 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5179 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5180 leim/Makefile nextstep/Makefile nt/Makefile])
5182 dnl test/ is not present in release tarfiles.
5183 opt_makefile=test/automated/Makefile
5185 if test -f "$srcdir/$opt_makefile.in"; then
5186 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5187 dnl Again, it's best not to use a variable. Though you can add
5188 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5189 AC_CONFIG_FILES([test/automated/Makefile])
5193 dnl The admin/ directory used to be excluded from tarfiles.
5194 if test -d $srcdir/admin; then
5195 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5196 AC_CONFIG_FILES([admin/unidata/Makefile])
5197 AC_CONFIG_FILES([admin/grammars/Makefile])
5201 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5203 AC_SUBST(SUBDIR_MAKEFILES_IN)
5205 dnl You might wonder (I did) why epaths.h is generated by running make,
5206 dnl rather than just letting configure generate it from epaths.in.
5207 dnl One reason is that the various paths are not fully expanded (see above);
5208 dnl eg gamedir=${prefix}/var/games/emacs.
5209 dnl Secondly, the GNU Coding standards require that one should be able
5210 dnl to run `make prefix=/some/where/else' and override the values set
5211 dnl by configure. This also explains the `move-if-change' test and
5212 dnl the use of force in the `epaths-force' rule in Makefile.in.
5213 AC_CONFIG_COMMANDS([src/epaths.h], [
5214 if test "${opsys}" = "mingw32"; then
5215 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5217 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5218 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5219 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5221 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5222 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5224 AC_CONFIG_COMMANDS([src/.gdbinit], [
5225 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5226 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5232 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])