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 "${canonical}" in
560 powerpc-* ) unported=yes ;;
565 ## Use fink packages if available.
566 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
567 ## if test -d /sw/include && test -d /sw/lib; then
568 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
569 ## NON_GCC_TEST_OPTIONS=${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.])
712 [[0-9]].*) AC_MSG_ERROR([OSX 10.6 or later required]) ;;
716 #### Choose a compiler.
718 dnl Don't bother to test for C89.
719 AC_DEFUN([_AC_PROG_CC_C89], [$2])
721 dnl Sets GCC=yes if using gcc.
722 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
723 if test -n "$XCRUN"; then
724 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
725 test -n "$AR" && export AR
728 dnl Emacs needs C99 or later.
733 if test x$GCC = xyes; then
734 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
736 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
739 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
740 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
741 dnl that clash with MinGW.
742 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
744 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
745 AC_DEFUN([gl_CRYPTO_CHECK])
746 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
747 # as we don't use them.
748 AC_DEFUN([gl_FCNTL_O_FLAGS])
750 # Initialize gnulib right after choosing the compiler.
751 dnl Amongst other things, this sets AR and ARFLAGS.
754 if test "$ac_test_CFLAGS" != set; then
755 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
756 # if -g3 works and the user does not specify CFLAGS.
757 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
760 emacs_g3_CFLAGS='-g3';;
762 emacs_g3_CFLAGS='-g3 -O2';;
766 if test -n "$emacs_g3_CFLAGS"; then
767 emacs_save_CFLAGS=$CFLAGS
768 CFLAGS=$emacs_g3_CFLAGS
769 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
770 [emacs_cv_prog_cc_g3],
771 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
772 [emacs_cv_prog_cc_g3=yes],
773 [emacs_cv_prog_cc_g3=no])])
774 if test $emacs_cv_prog_cc_g3 != yes; then
775 CFLAGS=$emacs_save_CFLAGS
777 if test $opsys = mingw32; then
778 CFLAGS="$CFLAGS -gdwarf-2"
785 # No optimization flag was inferred for this non-GCC compiler.
786 # Try -O. This is needed for xlc on AIX; see Bug#14258.
787 emacs_save_CFLAGS=$CFLAGS
788 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
790 AC_CACHE_CHECK([whether $CC accepts -O],
791 [emacs_cv_prog_cc_o],
792 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
793 [emacs_cv_prog_cc_o=yes],
794 [emacs_cv_prog_cc_o=no])])
795 if test $emacs_cv_prog_cc_o != yes; then
796 CFLAGS=$emacs_save_CFLAGS
801 AC_ARG_ENABLE([gcc-warnings],
802 [AS_HELP_STRING([--enable-gcc-warnings],
803 [turn on lots of GCC warnings/errors. This is intended for
804 developers, and may generate false alarms when used
805 with older or non-GNU development tools.])],
808 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
810 gl_gcc_warnings=$enableval],
814 # clang is unduly picky about some things.
815 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
822 [emacs_cv_clang=yes],
823 [emacs_cv_clang=no])])
825 # When compiling with GCC, prefer -isystem to -I when including system
826 # include files, to avoid generating useless diagnostics for the files.
827 if test "$gl_gcc_warnings" != yes; then
829 if test "$emacs_cv_clang" = yes
831 # Turn off some warnings if supported.
832 gl_WARN_ADD([-Wno-switch])
833 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
834 gl_WARN_ADD([-Wno-pointer-sign])
835 gl_WARN_ADD([-Wno-string-plus-int])
840 # This, $nw, is the list of warnings we disable.
843 case $with_x_toolkit in
844 lucid | athena | motif)
845 # Old toolkits mishandle 'const'.
846 nw="$nw -Wwrite-strings"
849 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
852 AC_SUBST([WERROR_CFLAGS])
854 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
855 nw="$nw -Woverlength-strings" # Not a problem these days
856 nw="$nw -Wformat-nonliteral" # we do this a lot
857 nw="$nw -Wvla" # Emacs uses <vla.h>.
858 nw="$nw -Wswitch-default" # Too many warnings for now
859 nw="$nw -Winline" # OK to ignore 'inline'
860 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
861 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
862 # signed overflow has undefined behavior
863 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
864 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
865 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
867 # Emacs doesn't care about shadowing; see
868 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
871 # Emacs's use of alloca inhibits protecting the stack.
872 nw="$nw -Wstack-protector"
874 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
875 # option problematic.
876 nw="$nw -Wsuggest-attribute=pure"
878 # This part is merely for shortening the command line,
879 # since -Wno-FOO needs to be added below regardless.
880 nw="$nw -Wmissing-field-initializers"
882 nw="$nw -Wtype-limits"
883 nw="$nw -Wunused-parameter"
885 if test $emacs_cv_clang = yes; then
886 nw="$nw -Wcast-align"
889 gl_MANYWARN_ALL_GCC([ws])
890 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
894 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
895 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
896 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
897 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
898 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
899 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
900 gl_WARN_ADD([-Wno-format-nonliteral])
902 # More things that clang is unduly picky about.
903 if test $emacs_cv_clang = yes; then
904 gl_WARN_ADD([-Wno-format-extra-args])
905 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
906 gl_WARN_ADD([-Wno-unused-command-line-argument])
907 gl_WARN_ADD([-Wno-unused-value])
910 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
911 AH_VERBATIM([FORTIFY_SOURCE],
912 [/* Enable compile-time and run-time bounds-checking, and some warnings,
913 without upsetting glibc 2.15+. */
914 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
915 # define _FORTIFY_SOURCE 2
918 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
920 # We use a slightly smaller set of warning options for lib/.
921 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
923 nw="$nw -Wunused-macros"
925 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
926 AC_SUBST([GNULIB_WARN_CFLAGS])
936 AC_ARG_ENABLE(link-time-optimization,
937 [AS_HELP_STRING([--enable-link-time-optimization],
938 [build emacs with link-time optimization.
939 This requires GCC 4.5.0 or later, or clang.
940 (Note that clang support is experimental - see INSTALL.)
941 It also makes Emacs harder to debug, and when we tried it
942 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
943 recommended for typical use.])],
944 if test "${enableval}" != "no"; then
946 if test $emacs_cv_clang = yes; then
947 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
948 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
949 if test -x "$GOLD_PLUGIN"; then
952 elif test x$GCC = xyes; then
953 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
954 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
955 if test x$CPUS != x; then
961 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
963 if test -z "$LTO"; then
967 CFLAGS="$CFLAGS $LTO"
968 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
969 [ac_lto_supported=yes], [ac_lto_supported=no])
972 AC_MSG_RESULT([$ac_lto_supported])
973 if test "$ac_lto_supported" = "yes"; then
974 CFLAGS="$CFLAGS $LTO"
975 if test x$emacs_cv_clang = xyes; then
976 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
977 # WARNING: 'ar --plugin ...' doesn't work without
978 # command, so plugin name is appended to ARFLAGS.
979 ARFLAGS="cru --plugin $GOLD_PLUGIN"
980 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
982 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
983 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
984 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
985 dnl dump core on Fedora 20, so play it safe for now.
986 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
987 [CFLAGS="$CFLAGS -ffat-lto-objects"])
992 dnl Port to Automake 1.11.
993 dnl This section can be removed once we assume Automake 1.14 or later.
994 : ${AM_DEFAULT_VERBOSITY=1}
995 : ${AM_V=$AM_DEFAULT_VERBOSITY}
996 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
998 AM_SUBST_NOTMAKE([AM_V])
999 AC_SUBST([AM_DEFAULT_V])
1000 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
1001 AC_SUBST([AM_DEFAULT_VERBOSITY])
1003 dnl Some other nice autoconf tests.
1004 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1007 dnl if test "x$RANLIB" = x; then
1012 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1013 dnl can be made to directories. This is not relevant for our usage, and
1014 dnl excludes some cases that work fine for us. Eg MS Windows or files
1015 dnl hosted on AFS, both examples where simple links work, but links to
1016 dnl directories fail. We use a cut-down version instead.
1019 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1020 rm -f conf$$ conf$$.file
1022 LN_S_FILEONLY='cp -p'
1024 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1025 dnl random program in the current directory.
1026 if (echo >conf$$.file) 2>/dev/null; then
1027 if ln -s conf$$.file conf$$ 2>/dev/null; then
1028 if test "$opsys" = "mingw32"; then
1029 LN_S_FILEONLY='/bin/ln -s'
1031 LN_S_FILEONLY='ln -s'
1033 elif ln conf$$.file conf$$ 2>/dev/null; then
1034 if test "$opsys" = "mingw32"; then
1035 LN_S_FILEONLY=/bin/ln
1042 rm -f conf$$ conf$$.file
1044 if test "$LN_S_FILEONLY" = "ln -s"; then
1045 AC_MSG_RESULT([yes])
1047 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1050 AC_SUBST(LN_S_FILEONLY)
1053 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1054 dnl doesn't support links to directories, as in "ln file dir". But that
1055 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1056 dnl executables at "make install" time.
1057 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1058 dnl for more details.
1059 if test "$opsys" = "mingw32"; then
1063 dnl On some Debian versions, "install-info" prints irritating messages
1064 dnl "This is not dpkg install-info anymore, but GNU install-info"
1065 dnl if called via an absolute file name.
1066 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1067 dnl Sadly some people may have an old ginstall-info installed on
1068 dnl non-Debian systems, so we can't use this.
1069 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1070 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1072 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1073 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1074 dnl Don't use GZIP, which is used by gzip for additional parameters.
1075 AC_PATH_PROG(GZIP_PROG, gzip)
1077 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1078 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1080 if test $opsys = gnu-linux; then
1081 AC_PATH_PROG(PAXCTL, paxctl,,
1082 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1083 if test "X$PAXCTL" != X; then
1084 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1085 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1086 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1087 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1090 if test "${SETFATTR+set}" != set; then
1091 AC_CACHE_CHECK([for setfattr],
1092 [emacs_cv_prog_setfattr],
1094 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1095 emacs_cv_prog_setfattr=yes
1097 emacs_cv_prog_setfattr=no
1099 if test "$emacs_cv_prog_setfattr" = yes; then
1105 AC_SUBST([SETFATTR])
1109 ## Need makeinfo >= 4.7 (?) to build the manuals.
1110 if test "$MAKEINFO" != "no"; then
1111 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1114 case `($MAKEINFO --version) 2>/dev/null` in
1115 *' (GNU texinfo) '4.[[7-9]]* | \
1116 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1117 *' (GNU texinfo) '[[5-9]]* | \
1118 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1123 ## Makeinfo is unusual. For a released Emacs, the manuals are
1124 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1125 ## therefore in the category of "special tools" not normally required, which
1126 ## configure does not have to check for (eg autoconf itself).
1127 ## In a repository checkout on the other hand, the manuals are not included.
1128 ## So makeinfo is a requirement to build from the repository, and configure
1129 ## should test for it as it does for any other build requirement.
1130 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1131 ## with pre-built manuals, from a repository checkout.
1134 if test "$MAKEINFO" = "no"; then
1136 if test "x${with_makeinfo}" = "xno"; then
1138 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1139 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1140 source tree does not seem to have pre-built manuals in the `info' directory.
1141 Either install a suitable version of makeinfo, or re-run configure
1142 with the `--without-makeinfo' option to build without the manuals.] )
1145 AC_SUBST(HAVE_MAKEINFO)
1147 if test $opsys = mingw32; then
1148 DOCMISC_W32=efaq-w32
1152 AC_SUBST(DOCMISC_W32)
1154 dnl Add our options to ac_link now, after it is set up.
1156 if test x$GCC = xyes; then
1157 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1158 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1160 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1161 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1164 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1165 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1166 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1167 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1168 dnl if not built to support GNU ld.
1170 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1171 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1172 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1173 dnl Eg "make LDFLAGS=... all" could run into problems,
1174 dnl http://bugs.debian.org/684788
1175 dnl * unnecessary, since temacs is the only thing that actually needs it.
1176 dnl Indeed this is where it was originally, prior to:
1177 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1178 late_LDFLAGS="$LDFLAGS"
1179 if test x$GCC = xyes; then
1180 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1182 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1185 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1187 AC_MSG_CHECKING([for -znocombreloc])
1188 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1189 [AC_MSG_RESULT(yes)],
1190 LDFLAGS_NOCOMBRELOC=
1191 [AC_MSG_RESULT(no)])
1193 LDFLAGS="$late_LDFLAGS"
1195 AC_CACHE_CHECK([whether addresses are sanitized],
1196 [emacs_cv_sanitize_address],
1199 [[#ifndef __has_feature
1200 #define __has_feature(f) 0
1202 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1204 error "Addresses are not sanitized.";
1207 [emacs_cv_sanitize_address=yes],
1208 [emacs_cv_sanitize_address=no])])
1210 dnl The function dump-emacs will not be defined and temacs will do
1211 dnl (load "loadup") automatically unless told otherwise.
1212 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1214 your-opsys-here) CANNOT_DUMP=yes ;;
1217 if test "$CANNOT_DUMP" = "yes"; then
1218 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1219 elif test "$emacs_cv_sanitize_address" = yes; then
1220 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1223 AC_SUBST(CANNOT_DUMP)
1226 UNEXEC_OBJ=unexelf.o
1228 # MSDOS uses unexcoff.o
1230 UNEXEC_OBJ=unexaix.o
1236 UNEXEC_OBJ=unexmacosx.o
1239 UNEXEC_OBJ=unexhp9k800.o
1242 UNEXEC_OBJ=unexw32.o
1245 # Use the Solaris dldump() function, called from unexsol.c, to dump
1246 # emacs, instead of the generic ELF dump code found in unexelf.c.
1247 # The resulting binary has a complete symbol table, and is better
1248 # for debugging and other observability tools (debuggers, pstack, etc).
1250 # If you encounter a problem using dldump(), please consider sending
1251 # a message to the OpenSolaris tools-linking mailing list:
1252 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1254 # It is likely that dldump() works with older Solaris too, but this has
1255 # not been tested, so for now this change is for Solaris 10 or newer.
1256 UNEXEC_OBJ=unexsol.o
1263 ## Let `ld' find image libs and similar things in /usr/local/lib.
1264 ## The system compiler, GCC, has apparently been modified to not
1265 ## look there, contrary to what a stock GCC would do.
1266 ### It's not our place to do this. See bug#10313#17.
1267 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1272 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1273 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1277 ### It's not our place to do this. See bug#10313#17.
1278 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1283 ## Han Boetes <han@boetes.org> says this is necessary,
1284 ## otherwise Emacs dumps core on elf systems.
1285 LD_SWITCH_SYSTEM="-Z"
1288 AC_SUBST(LD_SWITCH_SYSTEM)
1290 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1292 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1293 ## which has not been defined yet. When this was handled with cpp,
1294 ## it was expanded to null when configure sourced the s/*.h file.
1295 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1296 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1297 ## (or somesuch), but because it is supposed to go at the _front_
1298 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1299 ## Compare with the gnu-linux case below, which added to the end
1300 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1301 ## LD_SWITCH_SYSTEM_TEMACS.
1304 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1311 AC_CHECK_DECL([__ELF__])
1312 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1313 ## With ELF, make sure that all common symbols get allocated to in the
1314 ## data section. Otherwise, the dump of temacs may miss variables in
1315 ## the shared library that have been initialized. For example, with
1316 ## GNU libc, __malloc_initialized would normally be resolved to the
1317 ## shared library's .bss section, which is fatal.
1318 if test "x$GCC" = "xyes"; then
1319 C_SWITCH_MACHINE="-fno-common"
1321 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1324 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1325 dnl albeit under the mistaken assumption that said file
1326 dnl was no longer used.
1327 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1331 AC_SUBST(C_SWITCH_MACHINE)
1333 AC_SUBST(UNEXEC_OBJ)
1336 ## Some programs in src produce warnings saying certain subprograms
1337 ## are too complex and need a MAXMEM value greater than 2000 for
1338 ## additional optimization. --nils@exp-math.uni-essen.de
1339 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1340 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1341 if test "$opsys" = "mingw32"; then
1342 case "$canonical" in
1343 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1344 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1347 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1348 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1349 AC_SUBST(C_SWITCH_SYSTEM)
1354 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1355 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1357 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1359 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1361 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1363 ## Motif needs -lgen.
1364 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1367 AC_SUBST(LIBS_SYSTEM)
1369 ### Make sure subsequent tests use flags consistent with the build flags.
1371 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1372 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1374 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1377 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1378 AC_DEFUN([AC_TYPE_SIZE_T])
1379 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1380 AC_DEFUN([AC_TYPE_UID_T])
1382 # sqrt and other floating-point functions such as fmod and frexp
1383 # are found in -lm on many systems.
1385 AC_SEARCH_LIBS([sqrt], [m])
1386 if test "X$LIBS" = "X$OLD_LIBS"; then
1389 LIB_MATH=$ac_cv_search_sqrt
1393 dnl Current possibilities handled by sed (aix4-2 -> aix,
1394 dnl gnu-linux -> gnu/linux, etc.):
1395 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1396 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1397 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1404 ## Adding -lm confuses the dynamic linker, so omit it.
1407 freebsd | dragonfly )
1408 SYSTEM_TYPE=berkeley-unix
1410 gnu-linux | gnu-kfreebsd )
1412 hpux10-20 | hpux11 )
1416 SYSTEM_TYPE=windows-nt
1418 dnl NB this may be adjusted below.
1420 SYSTEM_TYPE=berkeley-unix
1424 SYSTEM_TYPE=usg-unix-v
1430 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1431 [The type of system you are compiling for; sets `system-type'.])
1434 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1435 pre_PKG_CONFIG_LIBS=$LIBS
1437 PKG_PROG_PKG_CONFIG(0.9.0)
1439 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1440 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1441 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1442 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1443 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1444 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1446 AC_DEFUN([EMACS_CHECK_MODULES],
1447 [PKG_CHECK_MODULES([$1], [$2],
1448 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1449 m4_default([$3], [HAVE_$1=yes])],
1450 [m4_default([$4], [HAVE_$1=no])])])
1453 if test "${with_sound}" != "no"; then
1454 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1455 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1456 have_sound_header=yes, [], [
1458 #define WIN32_LEAN_AND_MEAN
1459 #include <windows.h>
1462 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1463 AC_MSG_ERROR([OSS sound support requested but not found.])
1465 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1466 # Emulation library used on NetBSD.
1467 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1468 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1469 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1470 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1471 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1475 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1477 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1478 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1479 if test $HAVE_ALSA = yes; then
1480 SAVE_CFLAGS="$CFLAGS"
1482 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1483 LIBS="$ALSA_LIBS $LIBS"
1484 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1485 emacs_alsa_normal=yes,
1486 emacs_alsa_normal=no)
1487 if test "$emacs_alsa_normal" != yes; then
1488 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1489 [[snd_lib_error_set_handler (0);]])],
1490 emacs_alsa_subdir=yes,
1491 emacs_alsa_subdir=no)
1492 if test "$emacs_alsa_subdir" != yes; then
1493 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1495 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1498 CFLAGS="$SAVE_CFLAGS"
1500 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1501 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1502 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1503 elif test "${with_sound}" = "alsa"; then
1504 AC_MSG_ERROR([ALSA sound support requested but not found.])
1506 fi dnl with_sound = alsa|yes
1508 dnl Define HAVE_SOUND if we have sound support. We know it works and
1509 dnl compiles only on the specified platforms. For others, it
1510 dnl probably doesn't make sense to try.
1511 dnl FIXME So surely we should bypass this whole section if not using
1512 dnl one of these platforms?
1513 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1515 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1516 dnl Adjust the --with-sound help text if you change this.
1517 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1518 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1524 AC_SUBST(CFLAGS_SOUND)
1527 dnl checks for header files
1528 AC_CHECK_HEADERS_ONCE(
1533 sys/utsname.h pwd.h utmp.h util.h)
1535 AC_MSG_CHECKING(if personality LINUX32 can be set)
1536 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1537 emacs_cv_personality_linux32=yes,
1538 emacs_cv_personality_linux32=no)
1539 AC_MSG_RESULT($emacs_cv_personality_linux32)
1541 if test $emacs_cv_personality_linux32 = yes; then
1542 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1543 [Define to 1 if personality LINUX32 can be set.])
1546 # Note that Solaris has sys/sysinfo.h which defines struct
1547 # sysinfo as well. To make sure that we're using GNU/Linux
1548 # sysinfo, we explicitly set one of its fields.
1549 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1550 AC_MSG_CHECKING([if Linux sysinfo may be used])
1551 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1552 [[struct sysinfo si;
1555 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1556 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1557 if test $emacs_cv_linux_sysinfo = yes; then
1558 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1559 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1560 [[struct sysinfo si; return si.mem_unit]])],
1561 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1562 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1566 dnl On Solaris 8 there's a compilation warning for term.h because
1567 dnl it doesn't define `bool'.
1568 AC_CHECK_HEADERS(term.h, , , -)
1570 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1572 if test $ac_cv_have_decl_sys_siglist != yes; then
1573 # For Tru64, at least:
1574 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1579 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1580 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1581 #if HAVE_SYS_SOCKET_H
1582 #include <sys/socket.h>
1584 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1585 #if HAVE_SYS_SOCKET_H
1586 #include <sys/socket.h>
1588 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1589 #if HAVE_SYS_SOCKET_H
1590 #include <sys/socket.h>
1593 dnl checks for structure members
1594 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1595 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1596 struct ifreq.ifr_addr,
1597 struct ifreq.ifr_addr.sa_len], , ,
1598 [AC_INCLUDES_DEFAULT
1599 #if HAVE_SYS_SOCKET_H
1600 #include <sys/socket.h>
1606 dnl Check for endianness.
1607 dnl AC_C_BIGENDIAN is done by gnulib.
1609 dnl check for Make feature
1614 dnl check if we have GCC and autodepend is on.
1615 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1616 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1617 SAVE_CFLAGS="$CFLAGS"
1618 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1619 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1620 CFLAGS="$SAVE_CFLAGS"
1621 test -f deps.d || ac_enable_autodepend=no
1623 AC_MSG_RESULT([$ac_enable_autodepend])
1624 if test $ac_enable_autodepend = yes; then
1625 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1626 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1627 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1628 deps_frag=autodeps.mk
1631 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1632 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1633 deps_frag=$srcdir/src/$deps_frag
1636 AC_SUBST_FILE(deps_frag)
1637 AC_SUBST_FILE(lwlib_deps_frag)
1638 AC_SUBST_FILE(oldxmenu_deps_frag)
1640 lisp_frag=$srcdir/src/lisp.mk
1641 AC_SUBST_FILE(lisp_frag)
1644 dnl checks for operating system services
1645 AC_SYS_LONG_FILE_NAMES
1647 #### Choose a window system.
1649 ## We leave window_system equal to none if
1650 ## we end up building without one. Any new window system should
1651 ## set window_system to an appropriate value and add objects to
1652 ## window-system-specific substs.
1656 if test "$no_x" != yes; then
1660 LD_SWITCH_X_SITE_RPATH=
1661 if test "${x_libraries}" != NONE; then
1662 if test -n "${x_libraries}"; then
1663 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1664 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1666 x_default_search_path=""
1667 x_search_path=${x_libraries}
1668 if test -z "${x_search_path}"; then
1669 x_search_path=/usr/lib
1671 for x_library in `echo ${x_search_path}: | \
1672 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1674 ${x_library}/X11/%L/%T/%N%C%S:\
1675 ${x_library}/X11/%l/%T/%N%C%S:\
1676 ${x_library}/X11/%T/%N%C%S:\
1677 ${x_library}/X11/%L/%T/%N%S:\
1678 ${x_library}/X11/%l/%T/%N%S:\
1679 ${x_library}/X11/%T/%N%S"
1680 if test x"${x_default_search_path}" = x; then
1681 x_default_search_path=${x_search_path}
1683 x_default_search_path="${x_search_path}:${x_default_search_path}"
1687 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1689 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1690 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1693 if test x"${x_includes}" = x; then
1694 bitmapdir=/usr/include/X11/bitmaps
1696 # accumulate include directories that have X11 bitmap subdirectories
1698 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1699 if test -d "${bmd}/X11/bitmaps"; then
1700 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1702 if test -d "${bmd}/bitmaps"; then
1703 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1706 if test ${bmd_acc} != "dummyval"; then
1707 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1714 tmp_CPPFLAGS="$CPPFLAGS"
1715 tmp_CFLAGS="$CFLAGS"
1716 CPPFLAGS="$CPPFLAGS -x objective-c"
1717 CFLAGS="$CFLAGS -x objective-c"
1720 if test "${with_ns}" != no; then
1721 if test "${opsys}" = darwin; then
1723 ns_appdir=`pwd`/nextstep/Emacs.app
1724 ns_appbindir=${ns_appdir}/Contents/MacOS
1725 ns_appresdir=${ns_appdir}/Contents/Resources
1726 ns_appsrc=Cocoa/Emacs.base
1727 ns_fontfile=macfont.o
1728 elif test -f $GNUSTEP_CONFIG_FILE; then
1730 ns_appdir=`pwd`/nextstep/Emacs.app
1731 ns_appbindir=${ns_appdir}
1732 ns_appresdir=${ns_appdir}/Resources
1733 ns_appsrc=GNUstep/Emacs.base
1734 ns_fontfile=nsfont.o
1735 dnl FIXME sourcing this several times in subshells seems inefficient.
1736 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1737 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1738 dnl I seemed to need these as well with GNUstep-startup 0.25.
1739 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1740 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1741 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1742 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1743 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1744 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1745 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1746 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1747 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1748 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1749 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1750 dnl If they had chosen to either define it or not, we could have
1751 dnl just used AC_CHECK_DECL here.
1752 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1753 emacs_cv_objc_exceptions,
1754 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1755 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1759 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1760 if test $emacs_cv_objc_exceptions = yes; then
1761 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1762 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1763 [Define if GNUstep uses ObjC exceptions.])
1764 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1768 dnl This is only used while we test the NS headers, it gets reset below.
1769 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1771 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1772 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1773 files are missing or cannot be compiled.])])
1776 if test "${NS_IMPL_COCOA}" = "yes"; then
1777 AC_MSG_CHECKING([for OSX 10.6 or newer])
1778 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1780 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1781 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1784 error "OSX 10.6 or newer required";
1788 ns_osx_have_106=yes,
1790 AC_MSG_RESULT([$ns_osx_have_106])
1792 if test $ns_osx_have_106 = no; then
1793 AC_MSG_ERROR([`OSX 10.6 or newer is required']);
1798 AC_SUBST(LIBS_GNUSTEP)
1800 INSTALL_ARCH_INDEP_EXTRA=install-etc
1801 ns_self_contained=no
1804 if test "${HAVE_NS}" = yes; then
1805 if test "$with_toolkit_scroll_bars" = "no"; then
1806 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1809 window_system=nextstep
1810 # set up packaging dirs
1811 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1812 ns_self_contained=yes
1813 prefix=${ns_appresdir}
1814 exec_prefix=${ns_appbindir}
1815 dnl This one isn't really used, only archlibdir is.
1816 libexecdir="\${ns_appbindir}/libexec"
1817 archlibdir="\${ns_appbindir}/libexec"
1818 etcdocdir="\${ns_appresdir}/etc"
1819 etcdir="\${ns_appresdir}/etc"
1820 dnl FIXME maybe set datarootdir instead.
1821 dnl That would also get applications, icons, man.
1822 infodir="\${ns_appresdir}/info"
1823 mandir="\${ns_appresdir}/man"
1824 lispdir="\${ns_appresdir}/lisp"
1825 INSTALL_ARCH_INDEP_EXTRA=
1828 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1830 CFLAGS="$tmp_CFLAGS"
1831 CPPFLAGS="$tmp_CPPFLAGS"
1832 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1833 AC_SUBST(ns_self_contained)
1835 AC_SUBST(NS_OBJC_OBJ)
1846 if test "${with_w32}" != no; then
1849 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1850 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1851 cannot be found.])])
1854 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1857 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1862 if test "${opsys}" = "mingw32"; then
1863 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1864 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1865 #include <windows.h>
1866 #include <usp10.h>]],
1867 [[PIMAGE_NT_HEADERS pHeader;
1868 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1869 [emacs_cv_w32api=yes
1872 AC_MSG_RESULT($emacs_cv_w32api)
1873 if test "${emacs_cv_w32api}" = "no"; then
1874 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1885 if test "${HAVE_W32}" = "yes"; then
1886 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1887 AC_CHECK_TOOL(WINDRES, [windres],
1888 [AC_MSG_ERROR([No resource compiler found.])])
1889 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1890 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1891 EMACSRES="emacs.res"
1892 case "$canonical" in
1893 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1894 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1896 if test "${opsys}" = "cygwin"; then
1897 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1898 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1899 # Tell the linker that emacs.res is an object (which we compile from
1900 # the rc file), not a linker script.
1901 W32_RES_LINK="-Wl,emacs.res"
1903 UPDATE_MANIFEST=update-game-score.exe.manifest
1904 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1905 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1906 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1907 W32_RES_LINK="\$(EMACSRES)"
1908 CLIENTRES="emacsclient.res"
1909 CLIENTW="emacsclientw\$(EXEEXT)"
1910 FIRSTFILE_OBJ=firstfile.o
1913 LIBS_ECLIENT="-lcomctl32"
1914 LIB_WSOCK32="-lwsock32"
1915 NTLIB="ntlib.$ac_objext"
1916 XARGS_LIMIT="-s 10000"
1922 AC_SUBST(EMACS_MANIFEST)
1923 AC_SUBST(UPDATE_MANIFEST)
1926 AC_SUBST(W32_RES_LINK)
1927 AC_SUBST(FIRSTFILE_OBJ)
1930 AC_SUBST(LIBS_ECLIENT)
1931 AC_SUBST(LIB_WSOCK32)
1933 AC_SUBST(XARGS_LIMIT)
1935 if test "${HAVE_W32}" = "yes"; then
1940 ## $window_system is now set to the window system we will
1943 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1944 # Too many warnings for now.
1946 nw="$nw -Wsuggest-attribute=const"
1947 nw="$nw -Wsuggest-attribute=noreturn"
1948 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1950 gl_WARN_ADD([-Wno-unused-variable])
1951 gl_WARN_ADD([-Wno-unused-but-set-variable])
1952 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1960 case "${window_system}" in
1965 case "${with_x_toolkit}" in
1966 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1967 motif ) USE_X_TOOLKIT=MOTIF ;;
1969 term_header=gtkutil.h
1970 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1971 dnl USE_X_TOOLKIT is set.
1972 USE_X_TOOLKIT=none ;;
1973 gtk2 ) with_gtk2=yes
1974 term_header=gtkutil.h
1975 USE_X_TOOLKIT=none ;;
1976 gtk3 ) with_gtk3=yes
1977 term_header=gtkutil.h
1978 USE_X_TOOLKIT=none ;;
1979 no ) USE_X_TOOLKIT=none ;;
1980 dnl If user did not say whether to use a toolkit, make this decision later:
1981 dnl use the toolkit if we have gtk, or X11R5 or newer.
1982 * ) USE_X_TOOLKIT=maybe ;;
1986 term_header=nsterm.h
1989 term_header=w32term.h
1993 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1994 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1995 if test "$HAVE_XSERVER" = true ||
1996 test -n "$DISPLAY" ||
1997 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1998 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1999 were found. You should install the relevant development files for X
2000 and for the toolkit you want, such as Gtk+ or Motif. Also make
2001 sure you have development files for image handling, i.e.
2002 tiff, gif, jpeg, png and xpm.
2003 If you are sure you want Emacs compiled without X window support, pass
2009 # Does the opsystem file prohibit the use of the GNU malloc?
2010 # Assume not, until told otherwise.
2014 [whether malloc is Doug Lea style],
2015 [emacs_cv_var_doug_lea_malloc],
2016 [emacs_cv_var_doug_lea_malloc=no
2017 dnl Hooks do not work with address sanitization.
2018 if test "$emacs_cv_sanitize_address" != yes; then
2021 [[#include <malloc.h>
2022 static void hook (void) {}]],
2023 [[malloc_set_state (malloc_get_state ());
2024 __after_morecore_hook = hook;
2025 __malloc_initialize_hook = hook;]])],
2026 [emacs_cv_var_doug_lea_malloc=yes])])
2028 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2030 system_malloc=$emacs_cv_sanitize_address
2035 ## darwin ld insists on the use of malloc routines in the System framework.
2036 darwin|mingw32|sol2-10) system_malloc=yes ;;
2037 cygwin) hybrid_malloc=yes;;
2041 if test "${system_malloc}" = "yes"; then
2042 AC_DEFINE([SYSTEM_MALLOC], 1,
2043 [Define to 1 to use the system memory allocator, even if it is not
2047 (The GNU allocators don't work with this system configuration.)"
2049 elif test "$hybrid_malloc" = yes; then
2050 AC_DEFINE(HYBRID_MALLOC, 1,
2051 [Define to use gmalloc before dumping and the system malloc after.])
2053 GNU_MALLOC_reason="only before dumping"
2054 GMALLOC_OBJ=gmalloc.o
2057 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2058 VMLIMIT_OBJ=vm-limit.o
2060 AC_CHECK_HEADERS([sys/vlimit.h])
2061 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2064 [[extern char data_start[]; char ch;]],
2065 [[return data_start < &ch;]])],
2066 [emacs_cv_data_start=yes],
2067 [emacs_cv_data_start=no])])
2068 if test $emacs_cv_data_start = yes; then
2069 AC_DEFINE([HAVE_DATA_START], 1,
2070 [Define to 1 if data_start is the address of the start
2071 of the main data segment.])
2074 AC_SUBST(GMALLOC_OBJ)
2075 AC_SUBST(VMLIMIT_OBJ)
2077 if test "$doug_lea_malloc" = "yes" ; then
2078 if test "$GNU_MALLOC" = yes ; then
2080 (Using Doug Lea's new malloc from the GNU C Library.)"
2082 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2083 [Define to 1 if the system memory allocator is Doug Lea style,
2084 with malloc hooks and malloc_set_state.])
2086 ## Use mmap directly for allocating larger buffers.
2087 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2088 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2089 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2091 mingw32|gnu*) REL_ALLOC=no ;;
2095 if test x"${REL_ALLOC}" = x; then
2096 REL_ALLOC=${GNU_MALLOC}
2099 use_mmap_for_buffers=no
2101 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2105 if test $use_mmap_for_buffers = yes; then
2106 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2110 LIBS="$LIBS_SYSTEM $LIBS"
2112 dnl FIXME replace main with a function we actually want from this library.
2113 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2115 dnl Check for the POSIX thread library.
2117 if test "$opsys" != "mingw32"; then
2118 AC_CHECK_HEADERS_ONCE(pthread.h)
2119 if test "$ac_cv_header_pthread_h"; then
2120 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2121 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2122 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2123 if test "$GMALLOC_OBJ" = gmalloc.o; then
2124 emacs_pthread_function=pthread_atfork
2126 emacs_pthread_function=pthread_kill
2129 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2130 [AC_DEFINE([HAVE_PTHREAD], [1],
2131 [Define to 1 if you have pthread (-lpthread).])
2132 # Some systems optimize for single-threaded programs by default, and
2133 # need special flags to disable these optimizations. For example, the
2134 # definition of 'errno' in <errno.h>.
2137 AC_DEFINE([_REENTRANT], 1,
2138 [Define to 1 if your system requires this in multithreaded code.]);;
2140 AC_DEFINE([_THREAD_SAFE], 1,
2141 [Define to 1 if your system requires this in multithreaded code.]);;
2143 if test "X$LIBS" != "X$OLD_LIBS"; then
2144 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2148 AC_SUBST([LIB_PTHREAD])
2151 dnl Check for need for bigtoc support on IBM AIX
2155 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2157 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2158 *) gdb_cv_bigtoc=-bbigtoc ;;
2161 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2162 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2167 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2168 # is for the tests that follow. We set them back later on.
2170 REAL_CFLAGS="$CFLAGS"
2171 REAL_CPPFLAGS="$CPPFLAGS"
2174 if test "${HAVE_X11}" = "yes"; then
2175 DEFS="$C_SWITCH_X_SITE $DEFS"
2176 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2178 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2179 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2181 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2182 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2183 # but it's more convenient here to set LD_RUN_PATH since this
2184 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2185 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2186 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2190 if test "${opsys}" = "gnu-linux"; then
2191 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2192 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2193 [[XOpenDisplay ("foo");]])],
2194 [xgnu_linux_first_failure=no],
2195 [xgnu_linux_first_failure=yes])
2196 if test "${xgnu_linux_first_failure}" = "yes"; then
2197 OLD_CPPFLAGS="$CPPFLAGS"
2199 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2200 LIBS="$LIBS -b i486-linuxaout"
2201 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2202 [[XOpenDisplay ("foo");]])],
2203 [xgnu_linux_second_failure=no],
2204 [xgnu_linux_second_failure=yes])
2205 if test "${xgnu_linux_second_failure}" = "yes"; then
2206 # If we get the same failure with -b, there is no use adding -b.
2207 # So leave it out. This plays safe.
2210 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2211 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2214 CPPFLAGS=$OLD_CPPFLAGS
2221 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2222 # header files included from there.
2223 AC_MSG_CHECKING(for Xkb)
2224 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2225 #include <X11/XKBlib.h>]],
2226 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2227 emacs_xkb=yes, emacs_xkb=no)
2228 AC_MSG_RESULT($emacs_xkb)
2229 if test $emacs_xkb = yes; then
2230 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2233 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2234 XScreenNumberOfScreen)
2237 if test "${window_system}" = "x11"; then
2238 AC_MSG_CHECKING(X11 version 6)
2239 AC_CACHE_VAL(emacs_cv_x11_version_6,
2240 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2241 [[#if XlibSpecificationRelease < 6
2244 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2245 if test $emacs_cv_x11_version_6 = yes; then
2246 AC_MSG_RESULT(6 or newer)
2247 AC_DEFINE(HAVE_X11R6, 1,
2248 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2249 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2250 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2254 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2255 [Define if you have usable X11R6-style XIM support.])
2259 AC_MSG_RESULT(before 6)
2264 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2266 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2267 if test "${with_rsvg}" != "no"; then
2268 RSVG_REQUIRED=2.11.0
2269 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2271 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2272 AC_SUBST(RSVG_CFLAGS)
2275 if test $HAVE_RSVG = yes; then
2276 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2277 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2278 # Windows loads librsvg dynamically
2279 if test "${opsys}" = "mingw32"; then
2287 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2288 if test "${with_imagemagick}" != "no"; then
2289 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2290 ## 6.8.2 makes Emacs crash; see Bug#13867.
2291 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2292 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2293 AC_SUBST(IMAGEMAGICK_CFLAGS)
2294 AC_SUBST(IMAGEMAGICK_LIBS)
2296 if test $HAVE_IMAGEMAGICK = yes; then
2297 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2300 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2301 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2302 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2312 gtk_term_header=$term_header
2315 if test "${opsys}" != "mingw32"; then
2316 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2319 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2321 dnl Checks for libraries.
2322 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2323 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2324 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2325 AC_MSG_ERROR($GTK_PKG_ERRORS)
2327 if test "$pkg_check_gtk" = "yes"; then
2328 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2329 GTK_OBJ=emacsgtkfixed.o
2330 gtk_term_header=gtkutil.h
2331 USE_GTK_TOOLKIT="GTK3"
2332 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2333 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2334 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2335 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2336 [Define to 1 to disable Glib deprecation warnings.])
2340 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2344 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2347 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2349 dnl Checks for libraries.
2350 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2351 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2352 if test "$pkg_check_gtk" = "no" &&
2353 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2355 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2357 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2364 if test x"$pkg_check_gtk" = xyes; then
2367 CFLAGS="$CFLAGS $GTK_CFLAGS"
2368 LIBS="$GTK_LIBS $LIBS"
2369 dnl Try to compile a simple GTK program.
2370 AC_MSG_CHECKING([whether GTK compiles])
2374 [[/* Check the Gtk and Glib APIs. */
2375 #include <gtk/gtk.h>
2376 #include <glib-object.h>
2378 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2382 GtkSettings *gs = 0;
2383 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2384 strict C prohibits this. Use gtk_main_iteration to test that the
2385 libraries are there. */
2386 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2387 0, 0, 0, G_CALLBACK (callback), 0))
2388 gtk_main_iteration ();
2391 AC_MSG_RESULT([$GTK_COMPILES])
2392 if test "${GTK_COMPILES}" != "yes"; then
2394 if test "$USE_X_TOOLKIT" != "maybe"; then
2395 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2398 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2400 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2401 GTK_OBJ="gtkutil.o $GTK_OBJ"
2402 term_header=$gtk_term_header
2404 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2407 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2408 closing open displays. This is no problem if you just use
2409 one display, but if you use more than one and close one of them
2419 if test "${HAVE_GTK}" = "yes"; then
2421 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2422 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2423 if test "$with_toolkit_scroll_bars" != no; then
2424 with_toolkit_scroll_bars=yes
2427 dnl Check if we have the old file selection dialog declared and
2428 dnl in the link library. In 2.x it may be in the library,
2429 dnl but not declared if deprecated featured has been selected out.
2430 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2431 HAVE_GTK_FILE_SELECTION=no
2432 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2433 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2434 #include <gtk/gtk.h>])
2435 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2436 AC_CHECK_FUNCS(gtk_file_selection_new)
2439 dnl Same as above for gtk_handle_box.
2440 HAVE_GTK_HANDLE_BOX=no
2441 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2442 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2443 #include <gtk/gtk.h>])
2444 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2445 AC_CHECK_FUNCS(gtk_handle_box_new)
2448 dnl Same as above for gtk_tearoff_menu_item.
2449 HAVE_GTK_TEAROFF_MENU_ITEM=no
2450 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2451 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2452 #include <gtk/gtk.h>])
2453 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2454 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2457 dnl Check for functions introduced in 2.14 and later.
2458 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2459 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2460 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2461 gtk_orientable_set_orientation \
2462 gtk_window_set_has_resize_grip)
2464 term_header=gtkutil.h
2470 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2471 dnl other platforms.
2474 if test "${with_dbus}" = "yes"; then
2475 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2476 if test "$HAVE_DBUS" = yes; then
2477 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2478 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2479 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2482 LIBS="$LIBS $DBUS_LIBS"
2483 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2484 dbus_type_is_valid \
2485 dbus_validate_bus_name \
2486 dbus_validate_path \
2487 dbus_validate_interface \
2488 dbus_validate_member)
2493 AC_SUBST(DBUS_CFLAGS)
2497 dnl GSettings has been tested under GNU/Linux only.
2499 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2500 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2501 if test "$HAVE_GSETTINGS" = "yes"; then
2503 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2505 LIBS="$LIBS $GSETTINGS_LIBS"
2506 AC_MSG_CHECKING([whether GSettings is in gio])
2509 [[/* Check that gsettings really is present. */
2510 #include <glib-object.h>
2511 #include <gio/gio.h>
2514 GSettings *settings;
2515 GVariant *val = g_settings_get_value (settings, "");
2517 [], HAVE_GSETTINGS=no)
2518 AC_MSG_RESULT([$HAVE_GSETTINGS])
2520 if test "$HAVE_GSETTINGS" = "yes"; then
2521 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2522 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2523 SETTINGS_LIBS="$GSETTINGS_LIBS"
2530 dnl GConf has been tested under GNU/Linux only.
2531 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2533 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2534 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2535 if test "$HAVE_GCONF" = yes; then
2536 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2537 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2538 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2539 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2543 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2544 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2545 if test "$HAVE_GOBJECT" = "yes"; then
2546 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2547 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2549 SAVE_CFLAGS="$CFLAGS"
2551 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2552 LIBS="$SETTINGS_LIBS $LIBS"
2553 CFLAGS="$SAVE_CFLAGS"
2556 AC_SUBST(SETTINGS_CFLAGS)
2557 AC_SUBST(SETTINGS_LIBS)
2560 dnl SELinux is available for GNU/Linux only.
2563 if test "${with_selinux}" = "yes"; then
2564 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2565 if test "$HAVE_LIBSELINUX" = yes; then
2566 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2567 LIBSELINUX_LIBS=-lselinux
2570 AC_SUBST(LIBSELINUX_LIBS)
2574 if test "${with_gnutls}" = "yes" ; then
2575 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2576 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2577 if test "${HAVE_GNUTLS3}" = "yes"; then
2578 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2581 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2582 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2584 if test "${HAVE_GNUTLS}" = "yes"; then
2585 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2588 # Windows loads GnuTLS dynamically
2589 if test "${opsys}" = "mingw32"; then
2594 AC_SUBST(LIBGNUTLS_LIBS)
2595 AC_SUBST(LIBGNUTLS_CFLAGS)
2600 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2601 dnl a particular library. This doesn't make much sense?
2602 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2603 with_file_notification=no
2606 dnl MS Windows native file monitor is available for mingw32 only.
2607 case $with_file_notification,$opsys in
2608 w32,* | yes,mingw32)
2609 AC_CHECK_HEADER(windows.h)
2610 if test "$ac_cv_header_windows_h" = yes ; then
2611 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2612 NOTIFY_OBJ=w32notify.o
2613 NOTIFY_SUMMARY="yes (w32)"
2617 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2618 dnl has been added in glib 2.24. It has been tested under
2619 dnl GNU/Linux only. We take precedence over inotify, but this makes
2620 dnl only sense when glib has been compiled with inotify support. How
2622 case $with_file_notification,$NOTIFY_OBJ in
2624 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2625 if test "$HAVE_GFILENOTIFY" = "yes"; then
2626 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2627 NOTIFY_OBJ=gfilenotify.o
2628 NOTIFY_SUMMARY="yes -lgio (gfile)"
2632 dnl inotify is only available on GNU/Linux.
2633 case $with_file_notification,$NOTIFY_OBJ in
2635 AC_CHECK_HEADER(sys/inotify.h)
2636 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2637 AC_CHECK_FUNC(inotify_init1)
2638 if test "$ac_cv_func_inotify_init1" = yes; then
2639 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2640 NOTIFY_OBJ=inotify.o
2641 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2646 case $with_file_notification,$NOTIFY_OBJ in
2647 yes,* | no,* | *,?*) ;;
2648 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2651 if test -n "$NOTIFY_OBJ"; then
2652 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2654 AC_SUBST(NOTIFY_OBJ)
2655 AC_SUBST(GFILENOTIFY_CFLAGS)
2656 AC_SUBST(GFILENOTIFY_LIBS)
2658 dnl Do not put whitespace before the #include statements below.
2659 dnl Older compilers (eg sunos4 cc) choke on it.
2662 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2663 if test "$with_xaw3d" != no; then
2664 AC_CACHE_VAL(emacs_cv_xaw3d,
2665 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2666 #include <X11/Intrinsic.h>
2667 #include <X11/Xaw3d/Simple.h>]],
2669 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2670 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2671 emacs_cv_xaw3d=no)])
2675 if test $emacs_cv_xaw3d = yes; then
2676 AC_MSG_CHECKING(for xaw3d)
2677 AC_MSG_RESULT([yes; using Lucid toolkit])
2681 AC_DEFINE(HAVE_XAW3D, 1,
2682 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2684 AC_MSG_CHECKING(for xaw3d)
2686 AC_MSG_CHECKING(for libXaw)
2687 AC_CACHE_VAL(emacs_cv_xaw,
2688 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2689 #include <X11/Intrinsic.h>
2690 #include <X11/Xaw/Simple.h>]],
2694 if test $emacs_cv_xaw = yes; then
2695 AC_MSG_RESULT([yes; using Lucid toolkit])
2698 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2699 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2701 AC_MSG_ERROR([No X toolkit could be found.
2702 If you are sure you want Emacs compiled without an X toolkit, pass
2704 to configure. Otherwise, install the development libraries for the toolkit
2705 that you want to use (e.g. Gtk+) and re-run configure.])
2710 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2714 if test "${USE_X_TOOLKIT}" != "none"; then
2715 AC_MSG_CHECKING(X11 toolkit version)
2716 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2717 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2718 [[#if XtSpecificationRelease < 6
2721 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2722 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2723 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2724 AC_MSG_RESULT(6 or newer)
2725 AC_DEFINE(HAVE_X11XTR6, 1,
2726 [Define to 1 if you have the X11R6 or newer version of Xt.])
2727 LIBXTR6="-lSM -lICE"
2729 ## Use libw.a along with X11R6 Xt.
2730 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2733 AC_MSG_RESULT(before 6)
2736 dnl If using toolkit, check whether libXmu.a exists.
2737 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2739 if test x$HAVE_X11XTR6 = xyes; then
2740 OTHERLIBS='-lXt -lSM -lICE'
2744 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2745 if test "X$LIBS" != "X$OLDLIBS"; then
2746 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2749 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2755 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2756 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2757 if test -d /usr/include/openmotif; then
2758 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2759 emacs_cv_openmotif=yes
2760 case "$canonical" in
2761 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2762 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2765 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2768 emacs_cv_openmotif=no
2770 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2771 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2772 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2775 Motif version prior to 2.1.
2777 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2778 if test $emacs_cv_motif_version_2_1 = yes; then
2779 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2780 if test x$emacs_cv_openmotif = xyes; then
2781 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2784 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2785 # We put this in CFLAGS temporarily to precede other -I options
2786 # that might be in CFLAGS temporarily.
2787 # We put this in CPPFLAGS where it precedes the other -I options.
2788 OLD_CPPFLAGS=$CPPFLAGS
2790 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2791 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2792 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2794 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2795 if test $emacs_cv_lesstif = yes; then
2796 # Make sure this -I option remains in CPPFLAGS after it is set
2797 # back to REAL_CPPFLAGS.
2798 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2799 # have those other -I options anyway. Ultimately, having this
2800 # directory ultimately in CPPFLAGS will be enough.
2801 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2802 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2805 CPPFLAGS=$OLD_CPPFLAGS
2808 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2809 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2812 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2813 dnl using Motif or Xaw3d is available, and unless
2814 dnl --with-toolkit-scroll-bars=no was specified.
2816 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2817 [Define to 1 if we should use toolkit scroll bars.])dnl
2818 USE_TOOLKIT_SCROLL_BARS=no
2819 if test "${with_toolkit_scroll_bars}" != "no"; then
2820 if test "${USE_X_TOOLKIT}" != "none"; then
2821 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2822 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2824 USE_TOOLKIT_SCROLL_BARS=yes
2825 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2826 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2827 USE_TOOLKIT_SCROLL_BARS=yes
2829 elif test "${HAVE_GTK}" = "yes"; then
2830 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2831 USE_TOOLKIT_SCROLL_BARS=yes
2832 elif test "${HAVE_NS}" = "yes"; then
2833 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2834 USE_TOOLKIT_SCROLL_BARS=yes
2835 elif test "${HAVE_W32}" = "yes"; then
2836 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2837 USE_TOOLKIT_SCROLL_BARS=yes
2841 dnl See if XIM is available.
2842 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2843 #include <X11/Xlib.h>
2844 #include <X11/Xresource.h>]],
2845 [[XIMProc callback;]])],
2847 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2850 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2852 if test "${with_xim}" != "no"; then
2853 AC_DEFINE(USE_XIM, 1,
2854 [Define to 1 if we should use XIM, if it is available.])
2858 if test "${HAVE_XIM}" != "no"; then
2860 if test "$GCC" = yes; then
2861 CFLAGS="$CFLAGS --pedantic-errors"
2863 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2864 #include <X11/Xlib.h>
2865 #include <X11/Xresource.h>]],
2871 XPointer *client_data;
2873 /* If we're not using GCC, it's probably not XFree86, and this is
2874 probably right, but we can't use something like --pedantic-errors. */
2875 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2876 char*, XIMProc, XPointer*);
2878 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2880 [emacs_cv_arg6_star=yes])
2881 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2882 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2883 either XPointer or XPointer*.])dnl
2884 if test "$emacs_cv_arg6_star" = yes; then
2885 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2887 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2892 ### Start of font-backend (under any platform) section.
2893 # (nothing here yet -- this is a placeholder)
2894 ### End of font-backend (under any platform) section.
2896 ### Start of font-backend (under X11) section.
2897 if test "${HAVE_X11}" = "yes"; then
2898 ## Use -lXft if available, unless `--with-xft=no'.
2900 if test "x${with_x}" = "xno"; then
2904 if test "$with_xft" != no; then
2905 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2906 with_xft=$HAVE_FONTCONFIG
2909 if test "x${with_xft}" != "xno"; then
2911 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2912 ## Because xftfont.c uses XRenderQueryExtension, we also
2913 ## need to link to -lXrender.
2915 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2916 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2917 OLD_CPPFLAGS="$CPPFLAGS"
2918 OLD_CFLAGS="$CFLAGS"
2920 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2921 CFLAGS="$CFLAGS $XFT_CFLAGS"
2922 XFT_LIBS="-lXrender $XFT_LIBS"
2923 LIBS="$XFT_LIBS $LIBS"
2924 AC_CHECK_HEADER(X11/Xft/Xft.h,
2925 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2926 [[#include <X11/X.h>]])
2928 if test "${HAVE_XFT}" = "yes"; then
2929 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2931 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2932 fi # "${HAVE_XFT}" = "yes"
2933 CPPFLAGS=$OLD_CPPFLAGS
2936 fi # "$HAVE_XFT" != no
2937 fi # "x${with_xft}" != "xno"
2939 ## We used to allow building with FreeType and without Xft.
2940 ## However, the ftx font backend driver is not in good shape.
2941 if test "$HAVE_XFT" != "yes"; then
2942 dnl For the "Does Emacs use" message at the end.
2946 dnl Strict linkers fail with
2947 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2948 dnl if -lfreetype is not specified.
2949 dnl The following is needed to set FREETYPE_LIBS.
2950 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2952 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2956 if test "${HAVE_FREETYPE}" = "yes"; then
2957 AC_DEFINE(HAVE_FREETYPE, 1,
2958 [Define to 1 if using the freetype and fontconfig libraries.])
2959 if test "${with_libotf}" != "no"; then
2960 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2961 if test "$HAVE_LIBOTF" = "yes"; then
2962 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2963 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2964 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2965 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2966 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2967 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2968 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2972 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2973 dnl Does the new font backend require it, or can it work without it?
2977 if test "${HAVE_LIBOTF}" = yes; then
2978 if test "${with_m17n_flt}" != "no"; then
2979 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2980 if test "$HAVE_M17N_FLT" = "yes"; then
2981 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2992 ### End of font-backend (under X11) section.
2994 AC_SUBST(FREETYPE_CFLAGS)
2995 AC_SUBST(FREETYPE_LIBS)
2996 AC_SUBST(FONTCONFIG_CFLAGS)
2997 AC_SUBST(FONTCONFIG_LIBS)
2998 AC_SUBST(LIBOTF_CFLAGS)
2999 AC_SUBST(LIBOTF_LIBS)
3000 AC_SUBST(M17N_FLT_CFLAGS)
3001 AC_SUBST(M17N_FLT_LIBS)
3003 ### Use -lXpm if available, unless `--with-xpm=no'.
3004 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3005 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3006 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3007 ### LDFLAGS) accordingly.
3010 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3011 if test "${with_xpm}" != "no"; then
3012 SAVE_CPPFLAGS="$CPPFLAGS"
3013 SAVE_LDFLAGS="$LDFLAGS"
3014 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3015 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3016 AC_CHECK_HEADER(X11/xpm.h,
3017 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3018 if test "${HAVE_XPM}" = "yes"; then
3019 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3020 AC_EGREP_CPP(no_return_alloc_pixels,
3021 [#include "X11/xpm.h"
3022 #ifndef XpmReturnAllocPixels
3023 no_return_alloc_pixels
3025 ], HAVE_XPM=no, HAVE_XPM=yes)
3027 if test "${HAVE_XPM}" = "yes"; then
3028 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3032 CPPFLAGS="$SAVE_CPPFLAGS"
3033 LDFLAGS="$SAVE_LDFLAGS"
3038 if test "${HAVE_XPM}" = "yes"; then
3039 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3044 if test "${HAVE_X11}" = "yes"; then
3045 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3046 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3048 if test "${with_xpm}" != "no"; then
3049 AC_CHECK_HEADER(X11/xpm.h,
3050 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3051 if test "${HAVE_XPM}" = "yes"; then
3052 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3053 AC_EGREP_CPP(no_return_alloc_pixels,
3054 [#include "X11/xpm.h"
3055 #ifndef XpmReturnAllocPixels
3056 no_return_alloc_pixels
3058 ], HAVE_XPM=no, HAVE_XPM=yes)
3060 if test "${HAVE_XPM}" = "yes"; then
3068 if test "${HAVE_XPM}" = "yes"; then
3069 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3071 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3072 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3077 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3078 ### slightly different requirements wrt image libraries (it doesn't
3079 ### use -lXpm because it loads the xpm shared library dynamically at
3081 if test "${opsys}" = "mingw32"; then
3082 if test "${with_xpm}" != "no"; then
3083 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3087 if test "${HAVE_XPM}" = "yes"; then
3088 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3094 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3095 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3098 if test "${opsys}" = "mingw32"; then
3099 if test "${with_jpeg}" != "no"; then
3100 dnl Checking for jpeglib.h can lose because of a redefinition of
3102 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3104 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3105 if test "${HAVE_JPEG}" = "yes"; then
3106 AC_DEFINE(HAVE_JPEG)
3107 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3108 [#include <jpeglib.h>
3109 version=JPEG_LIB_VERSION
3111 [AC_DEFINE(HAVE_JPEG)],
3112 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3115 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3116 if test "${with_jpeg}" != "no"; then
3117 dnl Checking for jpeglib.h can lose because of a redefinition of
3119 AC_CHECK_HEADER(jerror.h,
3120 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3123 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3124 if test "${HAVE_JPEG}" = "yes"; then
3125 AC_DEFINE(HAVE_JPEG)
3126 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3127 [#include <jpeglib.h>
3128 version=JPEG_LIB_VERSION
3130 [AC_DEFINE(HAVE_JPEG)],
3131 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3134 if test "${HAVE_JPEG}" = "yes"; then
3142 if test "${with_zlib}" != "no"; then
3144 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3146 case $ac_cv_search_inflateEnd in
3147 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3150 if test "${HAVE_ZLIB}" = "yes"; then
3151 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3152 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3153 if test "${opsys}" = "mingw32"; then
3159 ### Use -lpng if available, unless `--with-png=no'.
3163 if test "${NS_IMPL_COCOA}" = yes; then
3165 elif test "${with_png}" != no; then
3166 # mingw32 loads the library dynamically.
3167 if test "$opsys" = mingw32; then
3168 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3169 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3170 AC_MSG_CHECKING([for png])
3171 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3172 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3173 # libpng-config does not work; configure by hand.
3174 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3175 # in /usr/include/libpng.
3176 if test -r /usr/include/libpng/png.h &&
3177 test ! -r /usr/include/png.h; then
3178 png_cflags=-I/usr/include/libpng
3186 CFLAGS="$CFLAGS $png_cflags"
3187 LIBS="$png_libs -lz -lm $LIBS"
3189 [AC_LANG_PROGRAM([[#include <png.h>]],
3190 [[return !png_get_channels (0, 0);]])],
3192 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3194 # $LIBPNG requires explicit -lz in some cases.
3195 # We don't know what those cases are, exactly, so play it safe and
3196 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3197 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3198 LIBPNG="$LIBPNG -lz"
3202 AC_MSG_RESULT([$HAVE_PNG])
3205 if test $HAVE_PNG = yes; then
3206 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3209 CFLAGS="$CFLAGS $PNG_CFLAGS"
3210 AC_CHECK_DECL([png_longjmp],
3212 [AC_DEFINE([PNG_DEPSTRUCT], [],
3213 [Define to empty to suppress deprecation warnings when building
3214 with --enable-gcc-warnings and with libpng versions before 1.5,
3215 which lack png_longjmp.])],
3221 AC_SUBST(PNG_CFLAGS)
3223 ### Use -ltiff if available, unless `--with-tiff=no'.
3224 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3227 if test "${opsys}" = "mingw32"; then
3228 if test "${with_tiff}" != "no"; then
3229 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3231 if test "${HAVE_TIFF}" = "yes"; then
3232 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3234 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3235 if test "${with_tiff}" != "no"; then
3236 AC_CHECK_HEADER(tiffio.h,
3238 # At least one tiff package requires the jpeg library.
3239 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3240 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3243 if test "${HAVE_TIFF}" = "yes"; then
3244 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3245 dnl FIXME -lz -lm, as per libpng?
3251 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3252 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3255 if test "${opsys}" = "mingw32"; then
3256 if test "${with_gif}" != "no"; then
3257 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3259 if test "${HAVE_GIF}" = "yes"; then
3260 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3262 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3263 || test "${HAVE_W32}" = "yes"; then
3264 AC_CHECK_HEADER(gif_lib.h,
3265 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3266 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3267 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3268 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3270 if test "$HAVE_GIF" = yes; then
3272 elif test "$HAVE_GIF" = maybe; then
3273 # If gif_lib.h but no libgif, try libungif.
3274 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3275 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3278 if test "${HAVE_GIF}" = "yes"; then
3279 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3284 dnl Check for required libraries.
3285 if test "${HAVE_X11}" = "yes"; then
3288 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3289 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3290 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3291 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3292 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3293 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3294 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3295 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3296 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3297 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3299 if test "X${MISSING}" != X; then
3300 AC_MSG_ERROR([The following required libraries were not found:
3302 Maybe some development libraries/packages are missing?
3303 If you don't want to link with them give
3305 as options to configure])
3309 ### Use -lgpm if available, unless `--with-gpm=no'.
3312 if test "${with_gpm}" != "no"; then
3313 AC_CHECK_HEADER(gpm.h,
3314 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3316 if test "${HAVE_GPM}" = "yes"; then
3317 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3323 dnl Check for malloc/malloc.h on darwin
3324 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3327 ### Use NeXTstep API to implement GUI.
3328 if test "${HAVE_NS}" = "yes"; then
3329 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3330 if test "${NS_IMPL_COCOA}" = "yes"; then
3331 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3333 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3334 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3335 # See also .m.o rule in Makefile.in */
3336 # FIXME: are all these flags really needed? Document here why. */
3337 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3338 ## Extra CFLAGS applied to src/*.m files.
3339 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3344 ### Use session management (-lSM -lICE) if available
3347 if test "${HAVE_X11}" = "yes"; then
3348 AC_CHECK_HEADER(X11/SM/SMlib.h,
3349 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3351 if test "${HAVE_X_SM}" = "yes"; then
3352 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3358 ### Use XRandr (-lXrandr) if available
3360 if test "${HAVE_X11}" = "yes"; then
3361 XRANDR_REQUIRED=1.2.2
3362 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3363 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3364 if test $HAVE_XRANDR = no; then
3365 # Test old way in case pkg-config doesn't have it (older machines).
3366 # Include Xrender.h by hand to work around bug in older Xrandr.h
3367 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3368 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3369 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3370 [], [AC_INCLUDES_DEFAULT
3371 #include <X11/extensions/Xrender.h>])
3372 if test $HAVE_XRANDR = yes; then
3373 XRANDR_LIBS=-lXrandr
3376 if test $HAVE_XRANDR = yes; then
3377 SAVE_CFLAGS="$CFLAGS"
3379 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3380 LIBS="$XRANDR_LIBS $LIBS"
3381 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3382 CFLAGS="$SAVE_CFLAGS"
3385 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3388 AC_SUBST(XRANDR_CFLAGS)
3389 AC_SUBST(XRANDR_LIBS)
3391 ### Use Xinerama (-lXinerama) if available
3393 if test "${HAVE_X11}" = "yes"; then
3394 XINERAMA_REQUIRED=1.0.2
3395 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3396 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3397 if test $HAVE_XINERAMA = no; then
3398 # Test old way in case pkg-config doesn't have it (older machines).
3399 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3400 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3401 if test $HAVE_XINERAMA = yes; then
3402 XINERAMA_LIBS=-lXinerama
3405 if test $HAVE_XINERAMA = yes; then
3406 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3409 AC_SUBST(XINERAMA_CFLAGS)
3410 AC_SUBST(XINERAMA_LIBS)
3412 ### Use Xfixes (-lXfixes) if available
3414 if test "${HAVE_X11}" = "yes"; then
3415 XFIXES_REQUIRED=4.0.0
3416 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3417 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3418 if test $HAVE_XFIXES = no; then
3419 # Test old way in case pkg-config doesn't have it (older machines).
3420 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3421 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3422 if test $HAVE_XFIXES = yes; then
3423 XFIXES_LIBS=-lXfixes
3426 if test $HAVE_XFIXES = yes; then
3427 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3430 AC_SUBST(XFIXES_CFLAGS)
3431 AC_SUBST(XFIXES_LIBS)
3433 ### Use libxml (-lxml2) if available
3434 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3436 if test "${with_xml2}" != "no"; then
3437 ### I'm not sure what the version number should be, so I just guessed.
3438 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3439 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3440 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3441 SAVE_CPPFLAGS="$CPPFLAGS"
3442 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3443 AC_CHECK_HEADER(libxml/HTMLparser.h,
3444 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3445 [#include <libxml/HTMLparser.h>])])
3446 CPPFLAGS="$SAVE_CPPFLAGS"
3447 if test "${HAVE_LIBXML2}" = "yes"; then
3448 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3449 LIBXML2_LIBS="-lxml2"
3452 if test "${HAVE_LIBXML2}" = "yes"; then
3453 if test "${opsys}" != "mingw32"; then
3454 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3459 if test "${HAVE_LIBXML2}" = "yes"; then
3460 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3467 AC_SUBST(LIBXML2_LIBS)
3468 AC_SUBST(LIBXML2_CFLAGS)
3470 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3471 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3472 if test "${opsys}" = "mingw32"; then
3473 emacs_cv_netdb_declares_h_errno=yes
3475 AC_CACHE_CHECK(whether netdb declares h_errno,
3476 emacs_cv_netdb_declares_h_errno,
3477 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3478 [[return h_errno;]])],
3479 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3480 if test $emacs_cv_netdb_declares_h_errno = yes; then
3481 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3484 # Check for mail-locking functions in a "mail" library. Probably this should
3485 # have the same check as for liblockfile below.
3486 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3487 if test $have_mail = yes; then
3489 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3492 LIBS="$LIBS_MAIL $LIBS"
3493 AC_CHECK_FUNCS(touchlock)
3498 dnl Debian, at least:
3499 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3500 if test $have_lockfile = yes; then
3501 LIBS_MAIL=-llockfile
3502 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3504 # If we have the shared liblockfile, assume we must use it for mail
3505 # locking (e.g. Debian). If we couldn't link against liblockfile
3506 # (no liblockfile.a installed), ensure that we don't need to.
3507 dnl This works for files generally, not just executables.
3508 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3509 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3510 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3511 if test $ac_cv_prog_liblockfile = yes; then
3512 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3513 This probably means that movemail could lose mail.
3514 There may be a `development' package to install containing liblockfile.])
3517 AC_CHECK_HEADERS_ONCE(maillock.h)
3520 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3521 ## interlock access to the mail spool. The alternative is a lock file named
3522 ## /usr/spool/mail/$USER.lock.
3525 aix4-2) mail_lock="lockf" ;;
3527 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3529 ## On GNU/Linux systems, both methods are used by various mail programs.
3530 ## I assume most people are using newer mailers that have heard of flock.
3531 ## Change this if you need to.
3532 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3533 ## configure gets the right answers, and that means *NOT* using flock.
3534 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3535 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3536 ## Debian maintainer hasn't provided a clean fix for Emacs.
3537 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3538 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3539 ## correct logic. -- fx
3540 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3541 ## liblockfile is a Free Software replacement for libmail, used on
3542 ## Debian systems and elsewhere. -rfr.
3545 if test $have_mail = yes || test $have_lockfile = yes; then
3546 test $ac_cv_header_maillock_h = yes && mail_lock=no
3551 mail_lock="none-needed" ;;
3555 case "$mail_lock" in
3556 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3558 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3562 *) BLESSMAIL_TARGET="need-blessmail" ;;
3564 AC_SUBST(BLESSMAIL_TARGET)
3567 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3568 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3569 getrusage get_current_dir_name \
3570 lrand48 random rint \
3571 select getpagesize setlocale newlocale \
3572 getrlimit setrlimit shutdown getaddrinfo \
3573 pthread_sigmask strsignal setitimer \
3574 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3576 getpwent endpwent getgrent endgrent \
3577 cfmakeraw cfsetspeed copysign __executable_start log2)
3580 dnl No need to check for aligned_alloc and posix_memalign if using
3581 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3582 dnl Don't use these functions on Darwin as they are incompatible with
3584 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3585 && test "$opsys" != darwin; then
3586 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3589 dnl Cannot use AC_CHECK_FUNCS
3590 AC_CACHE_CHECK([for __builtin_unwind_init],
3591 emacs_cv_func___builtin_unwind_init,
3592 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3593 emacs_cv_func___builtin_unwind_init=yes,
3594 emacs_cv_func___builtin_unwind_init=no)])
3595 if test $emacs_cv_func___builtin_unwind_init = yes; then
3596 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3597 [Define to 1 if you have the `__builtin_unwind_init' function.])
3600 AC_CHECK_HEADERS_ONCE(sys/un.h)
3605 AC_CHECK_FUNCS(grantpt)
3607 # PTY-related GNU extensions.
3608 AC_CHECK_FUNCS(getpt posix_openpt)
3610 # Check this now, so that we will NOT find the above functions in ncurses.
3611 # That is because we have not set up to link ncurses in lib-src.
3612 # It's better to believe a function is not available
3613 # than to expect to find it in ncurses.
3614 # Also we need tputs and friends to be able to build at all.
3615 AC_MSG_CHECKING([for library containing tputs])
3616 # Run a test program that contains a call to tputs, a call that is
3617 # never executed. This tests whether a pre-'main' dynamic linker
3618 # works with the library. It's too much trouble to actually call
3619 # tputs in the test program, due to portability hassles. When
3620 # cross-compiling, assume the test program will run if it links.
3621 AC_DEFUN([tputs_link_source], [
3623 [[extern void tputs (const char *, int, int (*)(int));
3624 int main (int argc, char **argv)
3627 tputs (argv[0], 0, 0);
3631 if test "${opsys}" = "mingw32"; then
3634 # Maybe curses should be tried earlier?
3635 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3636 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3638 if test -z "$tputs_library"; then
3642 LIBS_TERMCAP=-l$tputs_library
3644 LIBS="$LIBS_TERMCAP $LIBS"
3646 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3647 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3649 if test "X$msg" != Xno; then
3654 AC_MSG_RESULT([$msg])
3655 if test "X$msg" = Xno; then
3656 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3657 The following libraries were tried (in order):
3658 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3659 Please try installing whichever of these libraries is most appropriate
3660 for your system, together with its header files.
3661 For example, a libncurses-dev(el) or similar package.])
3664 ## Use termcap instead of terminfo?
3665 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3667 ## FIXME? In the cases below where we unconditionally set
3668 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3669 ## if that was found above to have tputs.
3670 ## Should we use the gnu* logic everywhere?
3672 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3673 ## The ncurses library has been moved out of the System framework in
3674 ## Mac OS X 10.2. So if configure detects it, set the command-line
3675 ## option to use it.
3676 darwin) LIBS_TERMCAP="-lncurses" ;;
3678 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3681 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3682 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3683 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3684 [[#if __FreeBSD_version < 400000
3687 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3689 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3691 if test $emacs_cv_freebsd_terminfo = yes; then
3692 LIBS_TERMCAP="-lncurses"
3695 LIBS_TERMCAP="-ltermcap"
3705 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3707 LIBS_TERMCAP="-ltermcap"
3711 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3713 ## hpux: Make sure we get select from libc rather than from libcurses
3714 ## because libcurses on HPUX 10.10 has a broken version of select.
3715 ## We used to use -lc -lcurses, but this may be cleaner.
3716 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3717 # set that way, now it uses the default). Isn't this a contradiction?
3718 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3722 TERMCAP_OBJ=tparam.o
3723 if test $TERMINFO = yes; then
3724 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3725 TERMCAP_OBJ=terminfo.o
3727 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3728 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3730 AC_SUBST(LIBS_TERMCAP)
3731 AC_SUBST(TERMCAP_OBJ)
3733 # GNU/Linux-specific timer functions.
3734 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3736 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3738 [[timerfd_create (CLOCK_REALTIME,
3739 TFD_CLOEXEC | TFD_NONBLOCK);
3740 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3741 [emacs_cv_have_timerfd=yes],
3742 [emacs_cv_have_timerfd=no])])
3743 if test "$emacs_cv_have_timerfd" = yes; then
3744 AC_DEFINE([HAVE_TIMERFD], 1,
3745 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3748 # Alternate stack for signal handlers.
3749 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3750 [emacs_cv_alternate_stack],
3752 [AC_LANG_PROGRAM([[#include <signal.h>
3755 struct sigaction sa;
3756 ss.ss_sp = malloc (SIGSTKSZ);
3757 ss.ss_size = SIGSTKSZ;
3758 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3759 sigaltstack (&ss, 0);
3760 sigaction (SIGSEGV, &sa, 0);]])],
3761 [emacs_cv_alternate_stack=yes],
3762 [emacs_cv_alternate_stack=no])])
3764 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3765 # On Darwin, res_init appears not to be useful: see bug#562 and
3766 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3769 if test $opsys != darwin; then
3771 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3772 #include <arpa/nameser.h>
3773 #include <resolv.h>]],
3774 [[return res_init();]])],
3775 have_res_init=yes, have_res_init=no)
3776 if test "$have_res_init" = no; then
3778 LIBS="$LIBS -lresolv"
3779 AC_MSG_CHECKING(for res_init with -lresolv)
3780 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3781 #include <arpa/nameser.h>
3782 #include <resolv.h>]],
3783 [[return res_init();]])],
3784 have_res_init=yes, have_res_init=no)
3785 AC_MSG_RESULT($have_res_init)
3786 if test "$have_res_init" = yes ; then
3792 if test "$have_res_init" = yes; then
3793 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3797 # Do we need the Hesiod library to provide the support routines?
3798 dnl FIXME? Should we be skipping this on Darwin too?
3800 if test "$with_hesiod" != no ; then
3801 # Don't set $LIBS here -- see comments above. FIXME which comments?
3802 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3803 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3804 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3805 if test "$resolv" = yes ; then
3810 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3811 hesiod=yes, :, $RESOLVLIB)])
3813 if test x"$hesiod" = xyes; then
3819 # Do we need libresolv (due to res_init or Hesiod)?
3820 if test "$resolv" = yes && test $opsys != darwin; then
3827 # These tell us which Kerberos-related libraries to use.
3834 if test "${with_kerberos}" != no; then
3836 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3837 if test $have_com_err = yes; then
3838 COM_ERRLIB=-lcom_err
3839 LIBS="$COM_ERRLIB $LIBS"
3841 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3842 if test $have_crypto = yes; then
3844 LIBS="$CRYPTOLIB $LIBS"
3846 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3847 if test $have_k5crypto = yes; then
3848 CRYPTOLIB=-lk5crypto
3849 LIBS="$CRYPTOLIB $LIBS"
3851 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3852 if test $have_krb5=yes; then
3854 LIBS="$KRB5LIB $LIBS"
3856 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3857 if test "${with_kerberos5}" = no; then
3858 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3859 if test $have_des425 = yes; then
3861 LIBS="$DESLIB $LIBS"
3863 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3864 if test $have_des = yes; then
3866 LIBS="$DESLIB $LIBS"
3869 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3870 if test $have_krb4 = yes; then
3872 LIBS="$KRB4LIB $LIBS"
3874 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3875 if test $have_krb = yes; then
3877 LIBS="$KRB4LIB $LIBS"
3882 if test "${with_kerberos5}" != no; then
3883 AC_CHECK_HEADERS(krb5.h,
3884 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3885 [#include <krb5.h>])])
3887 AC_CHECK_HEADERS(krb.h,,
3888 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3889 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3891 AC_CHECK_HEADERS(com_err.h)
3895 AC_SUBST(COM_ERRLIB)
3901 AC_CHECK_HEADERS(valgrind/valgrind.h)
3903 AC_CHECK_FUNCS_ONCE(tzalloc tzset)
3906 AC_CHECK_FUNC(socket, , ok_so_far=no)
3907 if test $ok_so_far = yes; then
3908 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3910 if test $ok_so_far = yes; then
3911 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3913 if test $ok_so_far = yes; then
3914 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3915 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3916 [Define to 1 if you have inet sockets.])
3921 AC_CHECK_FUNCS(snprintf)
3923 dnl Check for glib. This differs from other library checks in that
3924 dnl Emacs need not link to glib unless some other library is already
3925 dnl linking to glib. Although glib provides no facilities that Emacs
3926 dnl needs for its own purposes, when glib is present Emacs needs to
3927 dnl use primitives like g_main_context_query to avoid clashing with
3928 dnl glib at a low level.
3930 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3934 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3935 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3936 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3937 LIBS="$LIBS $GFILENOTIFY_LIBS"
3938 AC_MSG_CHECKING([whether GLib is linked in])
3939 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3942 [[g_print ("Hello world");]])],
3945 AC_MSG_RESULT([$links_glib])
3946 if test "${links_glib}" = "yes"; then
3947 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3948 if test "$HAVE_NS" = no;then
3956 dnl Adapted from Haible's version.
3957 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3958 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3959 [[char* cs = nl_langinfo(CODESET);]])],
3960 emacs_cv_langinfo_codeset=yes,
3961 emacs_cv_langinfo_codeset=no)
3963 if test $emacs_cv_langinfo_codeset = yes; then
3964 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3965 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3970 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3971 dnl how the tty code is related to POSIX and/or other versions of termios.
3972 dnl The following looks like a useful start.
3974 dnl AC_SYS_POSIX_TERMIOS
3975 dnl if test $ac_cv_sys_posix_termios = yes; then
3976 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3977 dnl and macros for terminal control.])
3978 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3981 dnl Turned on June 1996 supposing nobody will mind it.
3982 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3983 if test "${opsys}" != "mingw32"; then
3984 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3985 in the full name stands for the login id.])
3988 dnl Everybody supports this, except MS.
3989 dnl Seems like the kind of thing we should be testing for, though.
3990 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3991 if test "${opsys}" != "mingw32"; then
3992 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3995 dnl Everybody supports this, except MS-DOS.
3996 dnl Seems like the kind of thing we should be testing for, though.
3997 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3998 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3999 4.2-compatible sockets.])
4001 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
4003 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
4004 a null file, or a data sink.])
4005 if test "${opsys}" = "mingw32"; then
4006 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4008 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4011 if test "${opsys}" = "mingw32"; then
4016 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4017 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4018 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4019 dnl decides that a command-line argument to be passed to a MinGW program
4020 dnl is a PATH-style list of directories. But that heuristics plays it
4021 dnl safe, and only does the replacement when it is _absolutely_ sure it
4022 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4023 dnl which breaks in-tree builds. So we do this manually instead.
4024 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4025 dnl be computed as ':' in MSYS Bash.
4028 dnl Everybody supports this, except MS-DOS.
4029 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4031 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4034 AC_DEFINE(DIRECTORY_SEP, ['/'],
4035 [Character that separates directories in a file name.])
4037 if test "${opsys}" = "mingw32"; then
4038 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4039 [Returns true if character is a device separator.])
4041 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4042 [Returns true if character is a directory separator.])
4044 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4045 [Returns true if character is any form of separator.])
4047 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4048 [Returns true if character is a device separator.])
4050 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4051 [Returns true if character is a directory separator.])
4053 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4054 [Returns true if character is any form of separator.])
4057 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4061 dnl Unfortunately without libXmu we cannot support EditRes.
4062 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4063 AC_DEFINE(NO_EDITRES, 1)
4068 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4069 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4070 AC_DEFINE(NO_EDITRES, 1)
4076 irix6-5 | sol2* | unixware )
4077 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4078 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4079 dnl need the constant to dimension an array. So wire in the appropriate
4081 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4085 emacs_broken_SIGIO=no
4088 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4089 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4090 hpux* | irix6-5 | openbsd | sol2* | unixware )
4091 emacs_broken_SIGIO=yes
4095 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4096 dnl the way this system works, libc functions that return malloced
4097 dnl memory use the libc malloc implementation. Calling xfree or
4098 dnl xrealloc on the results of such functions results in a crash.
4100 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4101 dnl but that does not currently work on this system.
4103 dnl It is possible to completely override the malloc implementation on
4104 dnl AIX, but that involves putting the malloc functions in a shared
4105 dnl library and setting the MALLOCTYPE environment variable to point to
4106 dnl that shared library.
4108 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4109 dnl to avoid a crash just use the Emacs implementation for that function.
4111 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4112 dnl of this file, so that we do not check for get_current_dir_name
4113 dnl on AIX. But that might be fragile if something else ends
4114 dnl up testing for get_current_dir_name as a dependency.
4115 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4116 get_current_dir_name should not be used.])
4120 dnl Circumvent a bug in FreeBSD. In the following sequence of
4121 dnl writes/reads on a PTY, read(2) returns bogus data:
4123 dnl write(2) 1022 bytes
4124 dnl write(2) 954 bytes, get EAGAIN
4125 dnl read(2) 1024 bytes in process_read_output
4126 dnl read(2) 11 bytes in process_read_output
4128 dnl That is, read(2) returns more bytes than have ever been written
4129 dnl successfully. The 1033 bytes read are the 1022 bytes written
4130 dnl successfully after processing (for example with CRs added if the
4131 dnl terminal is set up that way which it is here). The same bytes will
4132 dnl be seen again in a later read(2), without the CRs.
4133 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4134 work around an issue when reading from a PTY.])
4140 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4141 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4146 darwin | dragonfly | freebsd | netbsd | openbsd )
4147 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4148 close a pty to make it a controlling terminal (it is already a
4149 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4153 dnl FIXME Surely we can test for this rather than hard-code it.
4155 netbsd | openbsd) sound_device="/dev/audio" ;;
4156 *) sound_device="/dev/dsp" ;;
4160 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4161 [Name of the default sound device.])
4164 dnl Emacs can read input using SIGIO and buffering characters itself,
4165 dnl or using CBREAK mode and making C-g cause SIGINT.
4166 dnl The choice is controlled by the variable interrupt_input.
4168 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4170 dnl Emacs uses the presence of the USABLE_SIGIO macro
4171 dnl to indicate whether or not signal-driven I/O is possible. It uses
4172 dnl INTERRUPT_INPUT to decide whether to use it by default.
4174 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4175 dnl CBREAK mode has two disadvantages
4176 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4177 dnl I hear that in system V this problem does not exist.
4178 dnl 2) Control-G causes output to be discarded.
4179 dnl I do not know whether this can be fixed in system V.
4181 dnl Another method of doing input is planned but not implemented.
4182 dnl It would have Emacs fork off a separate process
4183 dnl to read the input and send it to the true Emacs process
4186 darwin | gnu-linux | gnu-kfreebsd )
4187 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4192 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4193 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4194 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4195 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4196 dnl taking float or double parameters.
4198 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4199 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4200 file defines `NeedWidePrototypes' as `NO'.])
4205 dnl Used in process.c, this must be a loop, even if it only runs once.
4206 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4207 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4208 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4209 dnl trying suffixes 0-16.
4210 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4211 first PTY, if PTYs are supported.])
4212 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4213 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4214 end of a PTY, if non-standard.])
4215 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4216 end of a PTY, if non-standard.])
4220 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4221 dnl You allocate a pty by opening /dev/ptc to get the master side.
4222 dnl To get the name of the slave side, you just ttyname() the master side.
4223 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4224 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4228 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4229 dnl multi-line AC_DEFINEs are hard. :(
4230 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)])
4231 AC_DEFINE(PTY_NAME_SPRINTF, [])
4232 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4235 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4237 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4238 dnl Not used, because PTY_ITERATION is defined.
4239 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4240 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4241 dnl But we don't have to block SIGCHLD because it is blocked in the
4242 dnl implementation of grantpt.
4243 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4244 AC_DEFINE(PTY_NAME_SPRINTF, [])
4245 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4249 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4252 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4254 if test "x$ac_cv_func_grantpt" = xyes; then
4255 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4256 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4257 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4258 dnl to prevent sigchld_handler from intercepting the child's death.
4259 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); }])
4260 dnl if HAVE_POSIX_OPENPT
4261 if test "x$ac_cv_func_posix_openpt" = xyes; then
4262 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4263 AC_DEFINE(PTY_NAME_SPRINTF, [])
4265 elif test "x$ac_cv_func_getpt" = xyes; then
4266 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4267 AC_DEFINE(PTY_NAME_SPRINTF, [])
4269 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4272 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4277 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4278 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4279 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4283 dnl It looks like this cannot be right, because it is not a loop.
4284 dnl However, process.c actually does this:
4290 dnl which presumably makes it OK, since irix == sgi (?).
4291 dnl FIXME it seems like this special treatment is unnecessary?
4292 dnl Why can't irix use a single-trip loop like eg cygwin?
4293 AC_DEFINE(PTY_ITERATION, [])
4294 dnl Not used, because PTY_ITERATION is defined.
4295 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4296 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); }])
4297 dnl No need to get the pty name at all.
4298 AC_DEFINE(PTY_NAME_SPRINTF, [])
4299 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4300 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4304 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4305 dnl from intercepting that death. If any child but grantpt's should die
4306 dnl within, it should be caught after sigrelse(2).
4307 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); }])
4311 dnl Comments are as per sol2*.
4312 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); }])
4319 dnl This change means that we don't loop through allocate_pty too
4320 dnl many times in the (rare) event of a failure.
4321 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4322 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4323 dnl Push various streams modules onto a PTY channel. Used in process.c.
4324 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.])
4329 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4330 "typing" a signal character on the pty.])
4333 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4334 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4335 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4336 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4339 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4340 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4341 gnu-linux | gnu-kfreebsd )
4343 AC_MSG_CHECKING([for signals via characters])
4344 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4345 #include <linux/version.h>
4346 #if LINUX_VERSION_CODE < 0x20400
4347 # error "Linux version too old"
4349 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4351 AC_MSG_RESULT([$emacs_signals_via_chars])
4352 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4357 AH_TEMPLATE(TAB3, [Undocumented.])
4360 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4362 gnu | dragonfly | freebsd | netbsd | openbsd )
4363 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4364 AC_DEFINE(TAB3, OXTABS)
4367 gnu-linux | gnu-kfreebsd )
4368 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4372 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4373 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4374 [Mark a secondary stack, like the register stack on the ia64.]), [])
4378 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4379 run_time_remap; for HPUX.])
4384 dnl This won't be used automatically yet. We also need to know, at least,
4385 dnl that the stack is continuous.
4386 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4387 registers relevant for conservative garbage collection in the jmp_buf.])
4391 dnl Not all the architectures are tested, but there are Debian packages
4392 dnl for SCM and/or Guile on them, so the technique must work. See also
4393 dnl comments in alloc.c concerning setjmp and gcc.
4394 dnl Fixme: it's probably safe to just use the GCC conditional below.
4395 gnu-linux | gnu-kfreebsd )
4396 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4397 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4398 || defined __alpha__ || defined __mips__ || defined __s390__ \
4399 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4400 || defined __ia64__ || defined __sh__
4403 # error "setjmp not known to work on this arch"
4405 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4410 if test x$GCC = xyes; then
4411 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4412 AC_DEFINE(GC_SETJMP_WORKS, 1)
4415 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4416 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4417 AC_DEFINE(GC_SETJMP_WORKS, 1)
4422 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4423 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4426 [[#include <setjmp.h>
4428 # define _longjmp longjmp
4433 _longjmp (j, 1);]])],
4434 [emacs_cv_func__setjmp=yes],
4435 [emacs_cv_func__setjmp=no])])
4436 if test $emacs_cv_func__setjmp = yes; then
4437 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4440 # We need to preserve signal mask to handle C stack overflows.
4441 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4444 [[#include <setjmp.h>
4447 if (! sigsetjmp (j, 1))
4448 siglongjmp (j, 1);]])],
4449 [emacs_cv_func_sigsetjmp=yes],
4450 [emacs_cv_func_sigsetjmp=no])])
4451 if test $emacs_cv_func_sigsetjmp = yes; then
4452 AC_DEFINE([HAVE_SIGSETJMP], 1,
4453 [Define to 1 if sigsetjmp and siglongjmp work.])
4456 # We need all of these features to handle C stack overflows.
4457 if test "$ac_cv_header_sys_resource_h" = "yes" -a \
4458 "$ac_cv_func_getrlimit" = "yes" -a \
4459 "$emacs_cv_func_sigsetjmp" = "yes" -a \
4460 "$emacs_cv_alternate_stack" = yes; then
4461 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4462 [Define to 1 if C stack overflow can be handled in some cases.])
4467 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4468 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4469 dnl and this is all we need.
4470 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4477 dnl Used in xfaces.c.
4478 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4479 some systems, where it requires time.h.])
4484 dnl Define symbols to identify the version of Unix this is.
4485 dnl Define all the symbols that apply correctly.
4486 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4487 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4488 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4489 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4494 dnl This symbol should be defined on AIX Version 3 ???????
4495 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4497 # error "_AIX not defined"
4499 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4503 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4507 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4508 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4509 dnl distinguish OS X from pure Darwin.
4510 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4513 gnu-linux | gnu-kfreebsd )
4515 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4520 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4525 AC_DEFINE(USG5_4, [])
4526 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4530 AC_DEFINE(DOS_NT, [])
4531 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4532 if test "x$ac_enable_checking" != "x" ; then
4533 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4539 AC_DEFINE(USG5_4, [])
4540 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4545 AC_DEFINE(USG5_4, [])
4549 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4552 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4553 emacs_cv_usable_FIONREAD=no
4557 emacs_cv_usable_FIONREAD=yes
4562 [AC_LANG_PROGRAM([[#include <sys/types.h>
4563 #include <sys/ioctl.h>
4565 # include <sys/filio.h>
4568 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4569 [emacs_cv_usable_FIONREAD=yes],
4570 [emacs_cv_usable_FIONREAD=no])
4573 if test $emacs_cv_usable_FIONREAD = yes; then
4574 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4576 if test $emacs_broken_SIGIO = no; then
4577 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4579 [AC_LANG_PROGRAM([[#include <fcntl.h>
4582 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4583 [emacs_cv_usable_SIGIO=yes],
4584 [emacs_cv_usable_SIGIO=no])],
4585 [emacs_cv_usable_SIGIO=yes],
4586 [emacs_cv_usable_SIGIO=no])
4587 if test $emacs_cv_usable_SIGIO = yes; then
4588 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4595 dnl It works to open the pty's tty in the parent (Emacs), then
4596 dnl close and reopen it in the child.
4597 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4598 works to open a pty's tty in the parent process, then close and
4599 reopen it in the child.])
4603 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4604 use VSUSP instead of VSWTCH.])
4608 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4613 # Set up the CFLAGS for real compilation, so we can substitute it.
4614 CFLAGS="$REAL_CFLAGS"
4615 CPPFLAGS="$REAL_CPPFLAGS"
4618 ## Hack to detect a buggy GCC version.
4619 if test "x$GCC" = xyes \
4620 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4621 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4622 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4623 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4626 version=$PACKAGE_VERSION
4628 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4629 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4630 [Short copyright string for this version of Emacs.])
4633 ### Specify what sort of things we'll be editing into Makefile and config.h.
4634 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4636 AC_SUBST(configuration)
4641 AC_SUBST(exec_prefix)
4644 AC_SUBST(sharedstatedir)
4645 AC_SUBST(libexecdir)
4649 AC_SUBST(standardlisppath)
4650 AC_SUBST(locallisppath)
4652 AC_SUBST(x_default_search_path)
4654 AC_SUBST(archlibdir)
4659 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4660 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4661 ## end of LIBX_BASE, but nothing ever set it.
4662 AC_SUBST(LD_SWITCH_X_SITE)
4663 AC_SUBST(C_SWITCH_X_SITE)
4664 AC_SUBST(GNUSTEP_CFLAGS)
4666 ## Used in lwlib/Makefile.in.
4667 AC_SUBST(X_TOOLKIT_TYPE)
4669 AC_SUBST(ns_appbindir)
4670 AC_SUBST(ns_appresdir)
4672 AC_SUBST(GNU_OBJC_CFLAGS)
4673 AC_SUBST(OTHER_FILES)
4675 if test -n "${term_header}"; then
4676 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4677 [Define to the header for the built-in window system.])
4680 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4681 [Define to the canonical Emacs configuration name.])
4682 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4683 [Define to the options passed to configure.])
4684 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4685 define this to include extra configuration information.])
4689 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4696 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4697 AC_DEFINE(HAVE_X_WINDOWS, 1,
4698 [Define to 1 if you want to use the X window system.])
4700 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4702 if test "$HAVE_XFT" = "yes"; then
4703 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4704 elif test "$HAVE_FREETYPE" = "yes"; then
4705 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4715 if test "${USE_X_TOOLKIT}" != "none" ; then
4717 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4718 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4719 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4720 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4721 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4725 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4726 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4730 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4731 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4732 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4736 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4737 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4740 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4743 AC_SUBST(WIDGET_OBJ)
4746 case "$USE_X_TOOLKIT" in
4747 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4748 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4749 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4751 AC_SUBST(TOOLKIT_LIBW)
4753 if test "${opsys}" != "mingw32"; then
4754 if test "$USE_X_TOOLKIT" = "none"; then
4755 LIBXT_OTHER="\$(LIBXSM)"
4757 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4760 AC_SUBST(LIBXT_OTHER)
4762 if test "${HAVE_X11}" = "yes" ; then
4763 AC_DEFINE(HAVE_X11, 1,
4764 [Define to 1 if you want to use version 11 of X windows.])
4765 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4769 AC_SUBST(LIBX_OTHER)
4771 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4773 elif test "$USE_X_TOOLKIT" = none; then
4774 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4776 LIBXMENU='$(lwlibdir)/liblw.a'
4780 AC_CACHE_CHECK([for struct alignment],
4781 [emacs_cv_struct_alignment],
4783 [AC_LANG_PROGRAM([[#include <stddef.h>
4784 struct __attribute__ ((aligned (8))) s { char c; };
4785 struct t { char c; struct s s; };
4786 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
4788 [emacs_cv_struct_alignment=yes],
4789 [emacs_cv_struct_alignment=no])])
4790 if test "$emacs_cv_struct_alignment" = yes; then
4791 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
4792 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
4793 structure to an N-byte boundary.])
4796 if test "${GNU_MALLOC}" = "yes" ; then
4797 AC_DEFINE(GNU_MALLOC, 1,
4798 [Define to 1 if you want to use the GNU memory allocator.])
4802 if test "${REL_ALLOC}" = "yes" ; then
4803 AC_DEFINE(REL_ALLOC, 1,
4804 [Define REL_ALLOC if you want to use the relocating allocator for
4807 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4809 AC_SUBST(RALLOC_OBJ)
4811 if test "$opsys" = "cygwin"; then
4812 CYGWIN_OBJ="sheap.o cygw32.o"
4813 ## Cygwin differs because of its unexec().
4815 POST_ALLOC_OBJ=lastfile.o
4816 elif test "$opsys" = "mingw32"; then
4819 POST_ALLOC_OBJ=lastfile.o
4822 PRE_ALLOC_OBJ=lastfile.o
4825 AC_SUBST(CYGWIN_OBJ)
4826 AC_SUBST(PRE_ALLOC_OBJ)
4827 AC_SUBST(POST_ALLOC_OBJ)
4829 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4830 dnl verbatim defined above. The tricky name is apropos, as this hack
4831 dnl makes Fortify go sour!
4832 AH_VERBATIM([FORTIFY_SOUR],
4833 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4834 The workaround disables some useful run-time checking, so it
4835 should be conditional to the platforms with the performance bug.
4836 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4837 #if defined __APPLE__ && defined __GNUC__
4838 # ifndef _DONT_USE_CTYPE_INLINE_
4839 # define _DONT_USE_CTYPE_INLINE_
4841 # ifndef _FORTIFY_SOURCE
4842 # define _FORTIFY_SOURCE 0
4847 # If user asks to omit features, disable optional features that gnulib
4848 # might otherwise enable.
4849 if test "$with_features" = no && test "$enable_acl" != yes; then
4853 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4854 # it temporarily reverts them to their pre-pkg-config values,
4855 # because gnulib needs to work with both src (which uses the
4856 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4857 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4858 # and it therefore needs to run in an environment where LIBS does not
4859 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4860 # for some package unrelated to lib-src.
4863 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4864 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4865 gl_ASSERT_NO_GNULIB_POSIXCHECK
4866 gl_ASSERT_NO_GNULIB_TESTS
4871 if test "${opsys}" = "mingw32"; then
4872 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4873 # Remove unneeded switches from the value of CC that goes to Makefiles
4874 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4878 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4880 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
4883 ## The -headerpad option tells ld (see man page) to leave room at the
4884 ## end of the header for adding load commands. Needed for dumping.
4885 ## 0x1000 is enough for roughly 52 load commands on the x86_64
4886 ## architecture (where they are 78 bytes each). The actual number of
4887 ## load commands added is not consistent but normally ranges from
4888 ## about 14 to about 34. Setting it high gets us plenty of slop and
4889 ## only costs about 1.5K of wasted binary space.
4890 headerpad_extra=1000
4891 if test "$HAVE_NS" = "yes"; then
4892 libs_nsgui="-framework AppKit"
4893 if test "$NS_IMPL_COCOA" = "yes"; then
4894 libs_nsgui="$libs_nsgui -framework IOKit"
4899 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4901 ## This is here because src/Makefile.in did some extra fiddling around
4902 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4903 ## LD_SWITCH_SYSTEM_TEMACS instead,
4904 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4905 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4908 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4909 ## find X at run-time.
4910 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4911 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4912 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4913 ## had different values in configure (in ac_link) and src/Makefile.in.
4914 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4915 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4918 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4919 case "$canonical" in
4920 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4921 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4925 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4927 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4930 if test x$ac_enable_profiling != x ; then
4932 *freebsd | gnu-linux) ;;
4933 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4937 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4939 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4941 ## Common for all window systems
4942 if test "$window_system" != "none"; then
4943 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4944 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4945 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4948 AC_SUBST(WINDOW_SYSTEM_OBJ)
4950 AH_TOP([/* GNU Emacs site configuration template file.
4952 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4953 Free Software Foundation, Inc.
4955 This file is part of GNU Emacs.
4957 GNU Emacs is free software: you can redistribute it and/or modify
4958 it under the terms of the GNU General Public License as published by
4959 the Free Software Foundation, either version 3 of the License, or
4960 (at your option) any later version.
4962 GNU Emacs is distributed in the hope that it will be useful,
4963 but WITHOUT ANY WARRANTY; without even the implied warranty of
4964 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4965 GNU General Public License for more details.
4967 You should have received a copy of the GNU General Public License
4968 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4971 /* No code in Emacs #includes config.h twice, but some bits of code
4972 intended to work with other packages as well (like gmalloc.c)
4973 think they can include it as many times as they like. */
4974 #ifndef EMACS_CONFIG_H
4975 #define EMACS_CONFIG_H
4978 AH_BOTTOM([#include <conf_post.h>
4980 #endif /* EMACS_CONFIG_H */
4989 #### Report on what we decided to do.
4990 #### Report GTK as a toolkit, even if it doesn't use Xt.
4991 #### It makes printing result more understandable as using GTK sets
4992 #### toolkit_scroll_bars to yes by default.
4993 if test "${HAVE_GTK}" = "yes"; then
4994 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4997 if test $USE_ACL -ne 0; then
4998 ACL_SUMMARY="yes $LIB_ACL"
5004 Configured for \`${canonical}'.
5006 Where should the build process find the source code? ${srcdir}
5007 What compiler should emacs be built with? ${CC} ${CFLAGS}
5008 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5009 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5010 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5011 What window system should Emacs use? ${window_system}
5012 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5014 if test -n "${x_includes}"; then
5015 echo " Where do we find X Windows header files? ${x_includes}"
5017 echo " Where do we find X Windows header files? Standard dirs"
5019 if test -n "${x_libraries}"; then
5020 echo " Where do we find X Windows libraries? ${x_libraries}"
5022 echo " Where do we find X Windows libraries? Standard dirs"
5026 emacs_config_features=
5027 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
5028 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5032 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5033 *) eval val=\${HAVE_$opt} ;;
5035 test x"$val" = xno && continue
5036 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5039 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5040 [Summary of some of the main features enabled by configure.])
5042 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5043 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5044 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5045 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5046 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5047 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5048 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5049 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5051 echo " Does Emacs support sound? ${HAVE_SOUND}"
5053 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5054 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5055 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5056 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5057 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5058 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5059 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5060 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5061 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5063 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5064 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5065 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5066 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5067 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5069 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5072 if test -n "${EMACSDATA}"; then
5073 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5075 if test -n "${EMACSDOC}"; then
5076 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5081 if test "$HAVE_NS" = "yes"; then
5083 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5084 The installed application will go to nextstep/Emacs.app and can be
5085 run or moved from there."
5086 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5087 echo "The application will be fully self-contained."
5089 echo "The lisp resources for the application will be installed under ${prefix}.
5090 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5091 to run if these resources are not installed."
5096 if test "${opsys}" = "cygwin"; then
5098 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5104 # Remove any trailing slashes in these variables.
5105 [test "${prefix}" != NONE &&
5106 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5107 test "${exec_prefix}" != NONE &&
5108 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5110 if test "$HAVE_NS" = "yes"; then
5111 if test "$NS_IMPL_GNUSTEP" = yes; then
5112 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5113 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5114 ns_check_file=Resources/Info-gnustep.plist
5116 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5117 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5118 ns_check_file=Contents/Info.plist
5120 AC_SUBST(ns_check_file)
5123 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5124 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5125 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5126 dnl (else you get "no `Makefile.am' found for any configure output").
5127 dnl This will work, but you get a config.status that is not quite right
5128 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5129 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5130 dnl it seems better to just live with the duplication.
5131 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5133 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5134 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5135 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5136 leim/Makefile nextstep/Makefile nt/Makefile])
5138 dnl test/ is not present in release tarfiles.
5139 opt_makefile=test/automated/Makefile
5141 if test -f "$srcdir/$opt_makefile.in"; then
5142 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5143 dnl Again, it's best not to use a variable. Though you can add
5144 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5145 AC_CONFIG_FILES([test/automated/Makefile])
5149 dnl The admin/ directory used to be excluded from tarfiles.
5150 if test -d $srcdir/admin; then
5151 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5152 AC_CONFIG_FILES([admin/unidata/Makefile])
5153 AC_CONFIG_FILES([admin/grammars/Makefile])
5157 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5159 AC_SUBST(SUBDIR_MAKEFILES_IN)
5161 dnl You might wonder (I did) why epaths.h is generated by running make,
5162 dnl rather than just letting configure generate it from epaths.in.
5163 dnl One reason is that the various paths are not fully expanded (see above);
5164 dnl eg gamedir=${prefix}/var/games/emacs.
5165 dnl Secondly, the GNU Coding standards require that one should be able
5166 dnl to run `make prefix=/some/where/else' and override the values set
5167 dnl by configure. This also explains the `move-if-change' test and
5168 dnl the use of force in the `epaths-force' rule in Makefile.in.
5169 AC_CONFIG_COMMANDS([src/epaths.h], [
5170 if test "${opsys}" = "mingw32"; then
5171 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5173 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5174 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5175 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5177 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5178 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5180 AC_CONFIG_COMMANDS([src/.gdbinit], [
5181 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5182 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5188 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])