1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2014 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 24.4.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
134 dnl Fairly arbitrary, older versions might work too.
135 AM_INIT_AUTOMAKE(1.11)
137 dnl Canonicalize the configuration name.
140 configuration=${host_alias-${build_alias-$host}}
142 dnl We get MINGW64 with MSYS2.
145 . $srcdir/nt/mingw-cfg.site
149 # srcdir is an absolute path. In this case, force the format
150 # "/c/foo/bar", to simplify later conversions to native Windows
151 # format ("c:/foo/bar").
152 srcdir=`cd "${srcdir}" && pwd -W`
153 srcdir="/${srcdir:0:1}${srcdir:2}"
158 dnl Support for --program-prefix, --program-suffix and
159 dnl --program-transform-name options
162 dnl It is important that variables on the RHS not be expanded here,
163 dnl hence the single quotes. This is per the GNU coding standards, see
164 dnl (autoconf) Installation Directory Variables
165 dnl See also epaths.h below.
166 lispdir='${datadir}/emacs/${version}/lisp'
167 standardlisppath='${lispdir}'
168 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
169 '${datadir}/emacs/site-lisp'
170 lisppath='${locallisppath}:${standardlisppath}'
171 etcdir='${datadir}/emacs/${version}/etc'
172 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
173 etcdocdir='${datadir}/emacs/${version}/etc'
174 gamedir='${localstatedir}/games/emacs'
176 dnl Special option to disable the most of other options.
178 [AS_HELP_STRING([--without-all],
179 [omit almost all features and build
180 small executable with minimal dependencies])],
181 [with_features=$withval],
184 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
185 dnl Create a new --with option that defaults to being disabled.
186 dnl NAME is the base name of the option. The shell variable with_NAME
187 dnl will be set to either the user's value (if the option is
188 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
189 dnl option is not specified). Note that the shell variable name is
190 dnl constructed as autoconf does, by replacing non-alphanumeric
191 dnl characters with "_".
192 dnl HELP-STRING is the help text for the option.
193 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
194 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
195 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
198 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
199 dnl Create a new --with option that defaults to $with_features.
200 dnl NAME is the base name of the option. The shell variable with_NAME
201 dnl will be set either to 'no' (for a plain --without-NAME) or to
202 dnl 'yes' (if the option is not specified). Note that the shell
203 dnl variable name is constructed as autoconf does, by replacing
204 dnl non-alphanumeric characters with "_".
205 dnl HELP-STRING is the help text for the option.
206 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
207 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
208 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
211 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
212 if test "$with_pop" = yes; then
213 AC_DEFINE(MAIL_USE_POP)
215 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
217 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
218 if test "$with_kerberos" != no; then
221 AH_TEMPLATE(KERBEROS,
222 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
224 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
225 if test "${with_kerberos5}" != no; then
226 if test "${with_kerberos}" = no; then
230 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
233 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
234 dnl FIXME hesiod support may not be present, so it seems like an error
235 dnl to define, or at least use, this unconditionally.
236 if test "$with_hesiod" != no; then
237 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
240 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
241 if test "$with_mmdf" != no; then
242 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
245 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
246 if test "$with_mail_unlink" != no; then
247 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
250 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
251 [string giving default POP mail host])],
252 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
254 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
255 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
256 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW.])],
257 [ case "${withval}" in
258 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
259 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
260 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
265 [with_sound=$with_features])
267 dnl FIXME currently it is not the last.
268 dnl This should be the last --with option, because --with-x is
269 dnl added later on when we find the file name of X, and it's best to
270 dnl keep them together visually.
271 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
272 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
273 [ case "${withval}" in
274 y | ye | yes ) val=gtk ;;
276 l | lu | luc | luci | lucid ) val=lucid ;;
277 a | at | ath | athe | athen | athena ) val=athena ;;
278 m | mo | mot | moti | motif ) val=motif ;;
279 g | gt | gtk ) val=gtk ;;
283 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
284 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
285 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
286 `athena' and `lucid' are synonyms.])
292 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
293 if test "$with_wide_int" = yes; then
294 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
297 dnl _ON results in a '--without' option in the --help output, so
298 dnl the help text should refer to "don't compile", etc.
299 with_xpm_set=${with_xpm+set}
300 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
301 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
302 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
303 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
304 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
305 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
306 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
307 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
309 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
310 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
311 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
313 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
314 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
315 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
316 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
317 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
319 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
320 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
321 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
322 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
323 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
324 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
325 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
327 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
328 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
329 [ case "${withval}" in
330 y | ye | yes ) val=yes ;;
332 g | gf | gfi | gfil | gfile ) val=gfile ;;
333 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
334 w | w3 | w32 ) val=w32 ;;
335 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
336 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
337 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
338 otherwise for the first of `gfile' or `inotify' that is usable.])
341 with_file_notification=$val
343 [with_file_notification=$with_features])
345 ## For the times when you want to build Emacs but don't have
346 ## a suitable makeinfo, and can live without the manuals.
347 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
348 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
350 ## This might be a 'configure' arg.
351 AC_SUBST([ACLOCAL_PATH])
353 ## Makefile.in needs the cache file name.
356 ## This is an option because I do not know if all info/man support
357 ## compressed files, nor how to test if they do so.
358 OPTION_DEFAULT_ON([compress-install],
359 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
360 make GZIP_PROG= install])
362 AC_ARG_WITH(gameuser,dnl
363 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
364 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
365 && gameuser="${with_gameuser}"
366 test "X$gameuser" = X && gameuser=games
368 AC_ARG_WITH([gnustep-conf],dnl
369 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
370 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
371 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
372 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
373 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
374 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
376 AC_ARG_ENABLE(ns-self-contained,
377 [AS_HELP_STRING([--disable-ns-self-contained],
378 [disable self contained build under NeXTstep])],
379 EN_NS_SELF_CONTAINED=$enableval,
380 EN_NS_SELF_CONTAINED=yes)
382 AC_ARG_ENABLE(locallisppath,
383 [AS_HELP_STRING([--enable-locallisppath=PATH],
384 [directories Emacs should search for lisp files specific
386 if test "${enableval}" = "no"; then
388 elif test "${enableval}" != "yes"; then
389 locallisppath=${enableval}
392 AC_ARG_ENABLE(checking,
393 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
394 [enable expensive run-time checks. With LIST,
395 enable only specific categories of checks.
396 Categories are: all,yes,no.
397 Flags are: stringbytes, stringoverrun, stringfreelist,
398 xmallocoverrun, conslist, glyphs])],
399 [ac_checking_flags="${enableval}"],[])
400 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
401 for check in $ac_checking_flags
404 # these set all the flags to specific states
405 yes) ac_enable_checking=1 ;;
406 no) ac_enable_checking= ;
407 ac_gc_check_stringbytes= ;
408 ac_gc_check_string_overrun= ;
409 ac_gc_check_string_free_list= ;
410 ac_xmalloc_overrun= ;
411 ac_gc_check_cons_list= ;
413 all) ac_enable_checking=1 ;
414 ac_gc_check_stringbytes=1 ;
415 ac_gc_check_string_overrun=1 ;
416 ac_gc_check_string_free_list=1 ;
417 ac_xmalloc_overrun=1 ;
418 ac_gc_check_cons_list=1 ;
420 # these enable particular checks
421 stringbytes) ac_gc_check_stringbytes=1 ;;
422 stringoverrun) ac_gc_check_string_overrun=1 ;;
423 stringfreelist) ac_gc_check_string_free_list=1 ;;
424 xmallocoverrun) ac_xmalloc_overrun=1 ;;
425 conslist) ac_gc_check_cons_list=1 ;;
426 glyphs) ac_glyphs_debug=1 ;;
427 *) AC_MSG_ERROR(unknown check category $check) ;;
432 if test x$ac_enable_checking != x ; then
433 AC_DEFINE(ENABLE_CHECKING, 1,
434 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
436 if test x$ac_gc_check_stringbytes != x ; then
437 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
438 [Define this temporarily to hunt a bug. If defined, the size of
439 strings is redundantly recorded in sdata structures so that it can
440 be compared to the sizes recorded in Lisp strings.])
442 if test x$ac_gc_check_string_overrun != x ; then
443 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
444 [Define this to check for short string overrun.])
446 if test x$ac_gc_check_string_free_list != x ; then
447 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
448 [Define this to check the string free list.])
450 if test x$ac_xmalloc_overrun != x ; then
451 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
452 [Define this to check for malloc buffer overrun.])
454 if test x$ac_gc_check_cons_list != x ; then
455 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
456 [Define this to check for errors in cons list.])
458 if test x$ac_glyphs_debug != x ; then
459 AC_DEFINE(GLYPH_DEBUG, 1,
460 [Define this to enable glyphs debugging code.])
463 AC_ARG_ENABLE(check-lisp-object-type,
464 [AS_HELP_STRING([--enable-check-lisp-object-type],
465 [enable compile time checks for the Lisp_Object data type.
466 This is useful for development for catching certain types of bugs.])],
467 if test "${enableval}" != "no"; then
468 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
469 [Define this to enable compile time checks for the Lisp_Object data type.])
473 dnl The name of this option is unfortunate. It predates, and has no
474 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
475 dnl Actually, it stops it working.
476 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
477 AC_ARG_ENABLE(profiling,
478 [AS_HELP_STRING([--enable-profiling],
479 [build emacs with low-level, gprof profiling support.
480 Mainly useful for debugging Emacs itself. May not work on
481 all platforms. Stops profiler.el working.])],
482 [ac_enable_profiling="${enableval}"],[])
483 if test x$ac_enable_profiling != x ; then
484 PROFILING_CFLAGS="-DPROFILING=1 -pg"
488 AC_SUBST(PROFILING_CFLAGS)
490 AC_ARG_ENABLE(autodepend,
491 [AS_HELP_STRING([--enable-autodepend],
492 [automatically generate dependencies to .h-files.
493 Requires gcc, enabled if found.])],
494 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
496 AC_ARG_ENABLE(gtk-deprecation-warnings,
497 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
498 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
499 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
501 dnl This used to use changequote, but, apart from `changequote is evil'
502 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
503 dnl the great gob of text. Thus it's not processed for possible expansion.
504 dnl Just make sure the brackets remain balanced.
506 dnl Since Emacs can't find matching pairs of quotes, boundaries are
507 dnl indicated by comments.
511 ### If you add support for a new configuration, add code to this
512 ### switch statement to recognize your configuration name and select
513 ### the appropriate opsys.
515 ### As far as handling version numbers on operating systems is
516 ### concerned, make sure things will fail in a fixable way. If
517 ### /etc/MACHINES doesn't say anything about version numbers, be
518 ### prepared to handle anything reasonably. If version numbers
519 ### matter, be sure /etc/MACHINES says something about it.
522 case "${canonical}" in
524 ## GNU/Linux and similar ports
539 ## FreeBSD kernel + glibc based userland
550 *-*-openbsd* | *-*-mirbsd* )
554 ## Apple Darwin / Mac OS X
556 case "${canonical}" in
563 ## Use fink packages if available.
564 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
565 ## if test -d /sw/include && test -d /sw/lib; then
566 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
567 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
576 ## HP 9000 series 700 and 800, running HP/UX
580 hppa*-hp-hpux1[1-9]* )
582 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
586 rs6000-ibm-aix4.[23]* )
589 powerpc-ibm-aix4.[23]* )
592 rs6000-ibm-aix[56]* )
595 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
599 ## Silicon Graphics machines
603 # Without defining _LANGUAGE_C, things get masked out in the headers
604 # so that, for instance, grepping for `free' in stdlib.h fails and
605 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
606 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
611 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
612 | x86_64-*-solaris2* | x86_64-*-sunos5*)
613 case "${canonical}" in
615 amd64-*-*|x86_64-*-*) ;;
619 case "${canonical}" in
620 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
622 emacs_check_sunpro_c=yes
624 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
625 ## Note that Emacs 23.1's NEWS said the following would be dropped.
626 *-sunos5.6* | *-solaris2.6* )
630 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
631 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
633 emacs_check_sunpro_c=yes
636 ## Watch out for a compiler that we know will not work.
637 case "${canonical}" in
638 *-solaris* | *-sunos5* )
639 if [ "x$CC" = x/usr/ucb/cc ]; then
640 ## /usr/ucb/cc doesn't work;
641 ## we should find some other compiler that does work.
649 ## Intel 386 machines where we don't care about the manufacturer.
651 case "${canonical}" in
652 *-darwin* ) opsys=darwin ;;
655 # MinGW overrides and adds some system headers in nt/inc.
656 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
658 *-sysv4.2uw* ) opsys=unixware ;;
659 *-sysv5uw* ) opsys=unixware ;;
660 *-sysv5OpenUNIX* ) opsys=unixware ;;
661 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
667 case "${canonical}" in
670 # MinGW overrides and adds some system headers in nt/inc.
671 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
673 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
682 ### If the code above didn't choose an operating system, just choose
683 ### an operating system based on the configuration name. You really
684 ### only want to use this when you have no idea what the right
685 ### operating system is; if you know what operating systems a machine
686 ### runs, it's cleaner to make it explicit in the case statement
688 if test x"${opsys}" = x; then
689 case "${canonical}" in
690 *-gnu* ) opsys=gnu ;;
700 if test $unported = yes; then
701 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
702 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
703 Check `etc/MACHINES' for recognized configuration names.])
707 #### Choose a compiler.
709 dnl Don't bother to test for C89.
710 AC_DEFUN([_AC_PROG_CC_C89], [$2])
712 dnl Sets GCC=yes if using gcc.
713 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
714 if test -n "$XCRUN"; then
715 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
716 test -n "$AR" && export AR
719 dnl Emacs needs C99 or later.
724 if test x$GCC = xyes; then
725 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
727 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
730 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
731 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
732 dnl that clash with MinGW.
733 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
735 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
736 AC_DEFUN([gl_CRYPTO_CHECK])
737 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
738 # as we don't use them.
739 AC_DEFUN([gl_FCNTL_O_FLAGS])
741 # Initialize gnulib right after choosing the compiler.
742 dnl Amongst other things, this sets AR and ARFLAGS.
745 if test "$ac_test_CFLAGS" != set; then
746 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
747 # if -g3 works and the user does not specify CFLAGS.
748 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
751 emacs_g3_CFLAGS='-g3';;
753 emacs_g3_CFLAGS='-g3 -O2';;
757 if test -n "$emacs_g3_CFLAGS"; then
758 emacs_save_CFLAGS=$CFLAGS
759 CFLAGS=$emacs_g3_CFLAGS
760 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
761 [emacs_cv_prog_cc_g3],
762 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
763 [emacs_cv_prog_cc_g3=yes],
764 [emacs_cv_prog_cc_g3=no])])
765 if test $emacs_cv_prog_cc_g3 != yes; then
766 CFLAGS=$emacs_save_CFLAGS
768 if test $opsys = mingw32; then
769 CFLAGS="$CFLAGS -gdwarf-2"
776 # No optimization flag was inferred for this non-GCC compiler.
777 # Try -O. This is needed for xlc on AIX; see Bug#14258.
778 emacs_save_CFLAGS=$CFLAGS
779 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
781 AC_CACHE_CHECK([whether $CC accepts -O],
782 [emacs_cv_prog_cc_o],
783 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
784 [emacs_cv_prog_cc_o=yes],
785 [emacs_cv_prog_cc_o=no])])
786 if test $emacs_cv_prog_cc_o != yes; then
787 CFLAGS=$emacs_save_CFLAGS
792 AC_ARG_ENABLE([gcc-warnings],
793 [AS_HELP_STRING([--enable-gcc-warnings],
794 [turn on lots of GCC warnings/errors. This is intended for
795 developers, and may generate false alarms when used
796 with older or non-GNU development tools.])],
799 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
801 gl_gcc_warnings=$enableval],
805 # clang is unduly picky about some things.
806 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
813 [emacs_cv_clang=yes],
814 [emacs_cv_clang=no])])
816 # When compiling with GCC, prefer -isystem to -I when including system
817 # include files, to avoid generating useless diagnostics for the files.
818 if test "$gl_gcc_warnings" != yes; then
820 if test "$emacs_cv_clang" = yes
822 # Turn off some warnings if supported.
823 gl_WARN_ADD([-Wno-switch])
824 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
825 gl_WARN_ADD([-Wno-pointer-sign])
830 # This, $nw, is the list of warnings we disable.
833 case $with_x_toolkit in
834 lucid | athena | motif)
835 # Old toolkits mishandle 'const'.
836 nw="$nw -Wwrite-strings"
839 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
842 AC_SUBST([WERROR_CFLAGS])
844 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
845 nw="$nw -Woverlength-strings" # Not a problem these days
846 nw="$nw -Wlogical-op" # any use of fwrite provokes this
847 nw="$nw -Wformat-nonliteral" # we do this a lot
848 nw="$nw -Wvla" # warnings in gettext.h
849 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
850 nw="$nw -Wswitch-default" # Too many warnings for now
851 nw="$nw -Winline" # OK to ignore 'inline'
852 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
853 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
854 # signed overflow has undefined behavior
855 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
856 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
857 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
859 # Emacs doesn't care about shadowing; see
860 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
863 # Emacs's use of alloca inhibits protecting the stack.
864 nw="$nw -Wstack-protector"
866 # The following line should be removable at some point.
867 nw="$nw -Wsuggest-attribute=pure"
869 # This part is merely for shortening the command line,
870 # since -Wno-FOO needs to be added below regardless.
871 nw="$nw -Wmissing-field-initializers"
873 nw="$nw -Wtype-limits"
874 nw="$nw -Wunused-parameter"
876 if test $emacs_cv_clang = yes; then
877 nw="$nw -Wcast-align"
880 gl_MANYWARN_ALL_GCC([ws])
881 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
885 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
886 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
887 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
888 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
889 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
890 gl_WARN_ADD([-Wno-format-nonliteral])
892 # In spite of excluding -Wlogical-op above, it is enabled, as of
893 # gcc 4.5.0 20090517.
894 gl_WARN_ADD([-Wno-logical-op])
896 # More things that clang is unduly picky about.
897 if test $emacs_cv_clang = yes; then
898 gl_WARN_ADD([-Wno-format-extra-args])
899 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
900 gl_WARN_ADD([-Wno-unused-command-line-argument])
901 gl_WARN_ADD([-Wno-unused-value])
904 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
905 AH_VERBATIM([FORTIFY_SOURCE],
906 [/* Enable compile-time and run-time bounds-checking, and some warnings,
907 without upsetting glibc 2.15+. */
908 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
909 # define _FORTIFY_SOURCE 2
912 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
914 # We use a slightly smaller set of warning options for lib/.
915 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
917 nw="$nw -Wunused-macros"
919 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
920 AC_SUBST([GNULIB_WARN_CFLAGS])
930 AC_ARG_ENABLE(link-time-optimization,
931 [AS_HELP_STRING([--enable-link-time-optimization],
932 [build emacs with link-time optimization.
933 This is supported for gcc since 4.5.0 and clang.
934 Note that clang support is experimental - see INSTALL])],
935 if test "${enableval}" != "no"; then
937 if test $emacs_cv_clang = yes; then
938 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
939 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
940 if test -x "$GOLD_PLUGIN"; then
943 elif test x$GCC = xyes; then
944 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
945 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
946 if test x$CPUS != x; then
952 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
954 if test -z "$LTO"; then
958 CFLAGS="$CFLAGS $LTO"
959 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
960 [ac_lto_supported=yes], [ac_lto_supported=no])
963 AC_MSG_RESULT([$ac_lto_supported])
964 if test "$ac_lto_supported" = "yes"; then
965 CFLAGS="$CFLAGS $LTO"
966 if test x$emacs_cv_clang = xyes; then
967 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
968 # WARNING: 'ar --plugin ...' doesn't work without
969 # command, so plugin name is appended to ARFLAGS.
970 ARFLAGS="cru --plugin $GOLD_PLUGIN"
971 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
976 dnl Some other nice autoconf tests.
977 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
980 dnl if test "x$RANLIB" = x; then
985 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
986 dnl can be made to directories. This is not relevant for our usage, and
987 dnl excludes some cases that work fine for us. Eg MS Windows or files
988 dnl hosted on AFS, both examples where simple links work, but links to
989 dnl directories fail. We use a cut-down version instead.
992 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
993 rm -f conf$$ conf$$.file
995 LN_S_FILEONLY='cp -p'
997 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
998 dnl random program in the current directory.
999 if (echo >conf$$.file) 2>/dev/null; then
1000 if ln -s conf$$.file conf$$ 2>/dev/null; then
1001 if test "$opsys" = "mingw32"; then
1002 LN_S_FILEONLY='/bin/ln -s'
1004 LN_S_FILEONLY='ln -s'
1006 elif ln conf$$.file conf$$ 2>/dev/null; then
1007 if test "$opsys" = "mingw32"; then
1008 LN_S_FILEONLY=/bin/ln
1015 rm -f conf$$ conf$$.file
1017 if test "$LN_S_FILEONLY" = "ln -s"; then
1018 AC_MSG_RESULT([yes])
1020 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1023 AC_SUBST(LN_S_FILEONLY)
1026 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1027 dnl doesn't support links to directories, as in "ln file dir". But that
1028 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1029 dnl executables at "make install" time.
1030 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1031 dnl for more details.
1032 if test "$opsys" = "mingw32"; then
1036 dnl On some Debian versions, "install-info" prints irritating messages
1037 dnl "This is not dpkg install-info anymore, but GNU install-info"
1038 dnl if called via an absolute file name.
1039 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1040 dnl Sadly some people may have an old ginstall-info installed on
1041 dnl non-Debian systems, so we can't use this.
1042 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1043 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1045 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1046 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1047 dnl Don't use GZIP, which is used by gzip for additional parameters.
1048 AC_PATH_PROG(GZIP_PROG, gzip)
1050 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1051 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1053 if test $opsys = gnu-linux; then
1054 AC_PATH_PROG(PAXCTL, paxctl,,
1055 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1056 if test "X$PAXCTL" != X; then
1057 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1058 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1059 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1060 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1063 if test "${SETFATTR+set}" != set; then
1064 AC_CACHE_CHECK([for setfattr],
1065 [emacs_cv_prog_setfattr],
1067 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1068 emacs_cv_prog_setfattr=yes
1070 emacs_cv_prog_setfattr=no
1072 if test "$emacs_cv_prog_setfattr" = yes; then
1078 AC_SUBST([SETFATTR])
1082 ## Need makeinfo >= 4.7 (?) to build the manuals.
1083 AC_PATH_PROG(MAKEINFO, makeinfo, no)
1084 dnl By this stage, configure has already checked for egrep and set EGREP,
1085 dnl or exited with an error if no egrep was found.
1086 if test "$MAKEINFO" != "no"; then
1088 $MAKEINFO --version 2> /dev/null |
1089 $EGREP 'texinfo[[^0-9]]*([[1-4]][[0-9]]+|[[5-9]]|4\.[[7-9]]|4\.[[1-6]][[0-9]]+)'
1095 ## Makeinfo is unusual. For a released Emacs, the manuals are
1096 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1097 ## therefore in the category of "special tools" not normally required, which
1098 ## configure does not have to check for (eg autoconf itself).
1099 ## In a repository checkout on the other hand, the manuals are not included.
1100 ## So makeinfo is a requirement to build from the repository, and configure
1101 ## should test for it as it does for any other build requirement.
1102 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1103 ## with pre-built manuals, from a repository checkout.
1106 if test "$MAKEINFO" = "no"; then
1108 if test "x${with_makeinfo}" = "xno"; then
1110 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1111 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1112 source tree does not seem to have pre-built manuals in the `info' directory.
1113 Either install a suitable version of makeinfo, or re-run configure
1114 with the `--without-makeinfo' option to build without the manuals.] )
1117 AC_SUBST(HAVE_MAKEINFO)
1119 if test $opsys = mingw32; then
1120 DOCMISC_W32=efaq-w32
1124 AC_SUBST(DOCMISC_W32)
1126 dnl Add our options to ac_link now, after it is set up.
1128 if test x$GCC = xyes; then
1129 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1130 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1132 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1133 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1136 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1137 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1138 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1139 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1140 dnl if not built to support GNU ld.
1142 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1143 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1144 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1145 dnl Eg "make LDFLAGS=... all" could run into problems,
1146 dnl http://bugs.debian.org/684788
1147 dnl * unnecessary, since temacs is the only thing that actually needs it.
1148 dnl Indeed this is where it was originally, prior to:
1149 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1150 late_LDFLAGS="$LDFLAGS"
1151 if test x$GCC = xyes; then
1152 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1154 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1157 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1159 AC_MSG_CHECKING([for -znocombreloc])
1160 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1161 [AC_MSG_RESULT(yes)],
1162 LDFLAGS_NOCOMBRELOC=
1163 [AC_MSG_RESULT(no)])
1165 LDFLAGS="$late_LDFLAGS"
1167 AC_CACHE_CHECK([whether addresses are sanitized],
1168 [emacs_cv_sanitize_address],
1171 [[#ifndef __has_feature
1172 #define __has_feature(f) 0
1174 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1176 error "Addresses are not sanitized.";
1179 [emacs_cv_sanitize_address=yes],
1180 [emacs_cv_sanitize_address=no])])
1182 dnl The function dump-emacs will not be defined and temacs will do
1183 dnl (load "loadup") automatically unless told otherwise.
1184 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1186 your-opsys-here) CANNOT_DUMP=yes ;;
1189 if test "$CANNOT_DUMP" = "yes"; then
1190 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1191 elif test "$emacs_cv_sanitize_address" = yes; then
1192 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1195 AC_SUBST(CANNOT_DUMP)
1198 UNEXEC_OBJ=unexelf.o
1200 # MSDOS uses unexcoff.o
1202 UNEXEC_OBJ=unexaix.o
1208 UNEXEC_OBJ=unexmacosx.o
1211 UNEXEC_OBJ=unexhp9k800.o
1214 UNEXEC_OBJ=unexw32.o
1217 # Use the Solaris dldump() function, called from unexsol.c, to dump
1218 # emacs, instead of the generic ELF dump code found in unexelf.c.
1219 # The resulting binary has a complete symbol table, and is better
1220 # for debugging and other observability tools (debuggers, pstack, etc).
1222 # If you encounter a problem using dldump(), please consider sending
1223 # a message to the OpenSolaris tools-linking mailing list:
1224 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1226 # It is likely that dldump() works with older Solaris too, but this has
1227 # not been tested, so for now this change is for Solaris 10 or newer.
1228 UNEXEC_OBJ=unexsol.o
1235 ## Let `ld' find image libs and similar things in /usr/local/lib.
1236 ## The system compiler, GCC, has apparently been modified to not
1237 ## look there, contrary to what a stock GCC would do.
1238 ### It's not our place to do this. See bug#10313#17.
1239 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1244 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1245 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1249 ### It's not our place to do this. See bug#10313#17.
1250 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1255 ## Han Boetes <han@boetes.org> says this is necessary,
1256 ## otherwise Emacs dumps core on elf systems.
1257 LD_SWITCH_SYSTEM="-Z"
1260 AC_SUBST(LD_SWITCH_SYSTEM)
1262 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1264 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1265 ## which has not been defined yet. When this was handled with cpp,
1266 ## it was expanded to null when configure sourced the s/*.h file.
1267 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1268 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1269 ## (or somesuch), but because it is supposed to go at the _front_
1270 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1271 ## Compare with the gnu-linux case below, which added to the end
1272 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1273 ## LD_SWITCH_SYSTEM_TEMACS.
1276 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1283 AC_CHECK_DECL([__ELF__])
1284 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1285 ## With ELF, make sure that all common symbols get allocated to in the
1286 ## data section. Otherwise, the dump of temacs may miss variables in
1287 ## the shared library that have been initialized. For example, with
1288 ## GNU libc, __malloc_initialized would normally be resolved to the
1289 ## shared library's .bss section, which is fatal.
1290 if test "x$GCC" = "xyes"; then
1291 C_SWITCH_MACHINE="-fno-common"
1293 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1296 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1297 dnl albeit under the mistaken assumption that said file
1298 dnl was no longer used.
1299 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1303 AC_SUBST(C_SWITCH_MACHINE)
1305 AC_SUBST(UNEXEC_OBJ)
1308 ## Some programs in src produce warnings saying certain subprograms
1309 ## are too complex and need a MAXMEM value greater than 2000 for
1310 ## additional optimization. --nils@exp-math.uni-essen.de
1311 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1312 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1313 if test "$opsys" = "mingw32"; then
1314 case "$canonical" in
1315 x86_64-*-mingw32) C_SWITCH_SYSTEM="-mtune=generic" ;;
1316 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1319 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1320 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1321 AC_SUBST(C_SWITCH_SYSTEM)
1326 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1327 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1329 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1331 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1333 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1335 ## Motif needs -lgen.
1336 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1339 AC_SUBST(LIBS_SYSTEM)
1341 ### Make sure subsequent tests use flags consistent with the build flags.
1343 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1344 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1346 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1349 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1350 AC_DEFUN([AC_TYPE_SIZE_T])
1351 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1352 AC_DEFUN([AC_TYPE_UID_T])
1354 # sqrt and other floating-point functions such as fmod and frexp
1355 # are found in -lm on many systems.
1357 AC_SEARCH_LIBS([sqrt], [m])
1358 if test "X$LIBS" = "X$OLD_LIBS"; then
1361 LIB_MATH=$ac_cv_search_sqrt
1365 dnl Current possibilities handled by sed (aix4-2 -> aix,
1366 dnl gnu-linux -> gnu/linux, etc.):
1367 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1368 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1369 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1376 ## Adding -lm confuses the dynamic linker, so omit it.
1379 freebsd | dragonfly )
1380 SYSTEM_TYPE=berkeley-unix
1382 gnu-linux | gnu-kfreebsd )
1384 hpux10-20 | hpux11 )
1388 SYSTEM_TYPE=windows-nt
1390 dnl NB this may be adjusted below.
1392 SYSTEM_TYPE=berkeley-unix
1396 SYSTEM_TYPE=usg-unix-v
1402 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1403 [The type of system you are compiling for; sets `system-type'.])
1406 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1407 pre_PKG_CONFIG_LIBS=$LIBS
1409 PKG_PROG_PKG_CONFIG(0.9.0)
1411 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1412 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1413 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1414 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1415 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1416 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1418 AC_DEFUN([EMACS_CHECK_MODULES],
1419 [PKG_CHECK_MODULES([$1], [$2],
1420 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1421 m4_default([$3], [HAVE_$1=yes])],
1422 [m4_default([$4], [HAVE_$1=no])])])
1425 if test "${with_sound}" != "no"; then
1426 # Sound support for GNU/Linux, the free BSDs, and MinGW.
1427 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h],
1428 have_sound_header=yes, [], [
1430 #define WIN32_LEAN_AND_MEAN
1431 #include <windows.h>
1434 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1435 AC_MSG_ERROR([OSS sound support requested but not found.])
1437 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1438 # Emulation library used on NetBSD.
1439 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1440 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1441 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1442 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1443 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1447 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1449 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1450 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1451 if test $HAVE_ALSA = yes; then
1452 SAVE_CFLAGS="$CFLAGS"
1454 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1455 LIBS="$ALSA_LIBS $LIBS"
1456 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1457 emacs_alsa_normal=yes,
1458 emacs_alsa_normal=no)
1459 if test "$emacs_alsa_normal" != yes; then
1460 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1461 [[snd_lib_error_set_handler (0);]])],
1462 emacs_alsa_subdir=yes,
1463 emacs_alsa_subdir=no)
1464 if test "$emacs_alsa_subdir" != yes; then
1465 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1467 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1470 CFLAGS="$SAVE_CFLAGS"
1472 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1473 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1474 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1475 elif test "${with_sound}" = "alsa"; then
1476 AC_MSG_ERROR([ALSA sound support requested but not found.])
1478 fi dnl with_sound = alsa|yes
1480 dnl Define HAVE_SOUND if we have sound support. We know it works and
1481 dnl compiles only on the specified platforms. For others, it
1482 dnl probably doesn't make sense to try.
1483 dnl FIXME So surely we should bypass this whole section if not using
1484 dnl one of these platforms?
1485 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1487 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1488 dnl Adjust the --with-sound help text if you change this.
1489 gnu-linux|freebsd|netbsd|mingw32)
1490 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1496 AC_SUBST(CFLAGS_SOUND)
1499 dnl checks for header files
1500 AC_CHECK_HEADERS_ONCE(
1504 sys/utsname.h pwd.h utmp.h util.h)
1506 AC_MSG_CHECKING(if personality LINUX32 can be set)
1507 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1508 emacs_cv_personality_linux32=yes,
1509 emacs_cv_personality_linux32=no)
1510 AC_MSG_RESULT($emacs_cv_personality_linux32)
1512 if test $emacs_cv_personality_linux32 = yes; then
1513 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1514 [Define to 1 if personality LINUX32 can be set.])
1517 dnl On Solaris 8 there's a compilation warning for term.h because
1518 dnl it doesn't define `bool'.
1519 AC_CHECK_HEADERS(term.h, , , -)
1521 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1523 if test $ac_cv_have_decl_sys_siglist != yes; then
1524 # For Tru64, at least:
1525 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1530 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1531 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1532 #if HAVE_SYS_SOCKET_H
1533 #include <sys/socket.h>
1535 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1536 #if HAVE_SYS_SOCKET_H
1537 #include <sys/socket.h>
1539 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1540 #if HAVE_SYS_SOCKET_H
1541 #include <sys/socket.h>
1544 dnl checks for structure members
1545 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1546 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1547 struct ifreq.ifr_addr,
1548 struct ifreq.ifr_addr.sa_len], , ,
1549 [AC_INCLUDES_DEFAULT
1550 #if HAVE_SYS_SOCKET_H
1551 #include <sys/socket.h>
1557 dnl Check for endianness.
1558 dnl AC_C_BIGENDIAN is done by gnulib.
1560 dnl check for Make feature
1565 dnl check if we have GCC and autodepend is on.
1566 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1567 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1568 SAVE_CFLAGS="$CFLAGS"
1569 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1570 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1571 CFLAGS="$SAVE_CFLAGS"
1572 test -f deps.d || ac_enable_autodepend=no
1574 AC_MSG_RESULT([$ac_enable_autodepend])
1575 if test $ac_enable_autodepend = yes; then
1576 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1577 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1578 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1579 deps_frag=autodeps.mk
1582 deps_frag=$srcdir/src/$deps_frag
1585 AC_SUBST_FILE(deps_frag)
1588 lisp_frag=$srcdir/src/lisp.mk
1589 AC_SUBST_FILE(lisp_frag)
1592 dnl checks for operating system services
1593 AC_SYS_LONG_FILE_NAMES
1595 #### Choose a window system.
1597 ## We leave window_system equal to none if
1598 ## we end up building without one. Any new window system should
1599 ## set window_system to an appropriate value and add objects to
1600 ## window-system-specific substs.
1604 if test "$no_x" != yes; then
1608 LD_SWITCH_X_SITE_RPATH=
1609 if test "${x_libraries}" != NONE; then
1610 if test -n "${x_libraries}"; then
1611 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1612 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1614 x_default_search_path=""
1615 x_search_path=${x_libraries}
1616 if test -z "${x_search_path}"; then
1617 x_search_path=/usr/lib
1619 for x_library in `echo ${x_search_path}: | \
1620 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1622 ${x_library}/X11/%L/%T/%N%C%S:\
1623 ${x_library}/X11/%l/%T/%N%C%S:\
1624 ${x_library}/X11/%T/%N%C%S:\
1625 ${x_library}/X11/%L/%T/%N%S:\
1626 ${x_library}/X11/%l/%T/%N%S:\
1627 ${x_library}/X11/%T/%N%S"
1628 if test x"${x_default_search_path}" = x; then
1629 x_default_search_path=${x_search_path}
1631 x_default_search_path="${x_search_path}:${x_default_search_path}"
1635 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1637 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1638 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1641 if test x"${x_includes}" = x; then
1642 bitmapdir=/usr/include/X11/bitmaps
1644 # accumulate include directories that have X11 bitmap subdirectories
1646 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1647 if test -d "${bmd}/X11/bitmaps"; then
1648 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1650 if test -d "${bmd}/bitmaps"; then
1651 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1654 if test ${bmd_acc} != "dummyval"; then
1655 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1662 tmp_CPPFLAGS="$CPPFLAGS"
1663 tmp_CFLAGS="$CFLAGS"
1664 CPPFLAGS="$CPPFLAGS -x objective-c"
1665 CFLAGS="$CFLAGS -x objective-c"
1668 if test "${with_ns}" != no; then
1669 if test "${opsys}" = darwin; then
1671 ns_appdir=`pwd`/nextstep/Emacs.app
1672 ns_appbindir=${ns_appdir}/Contents/MacOS
1673 ns_appresdir=${ns_appdir}/Contents/Resources
1674 ns_appsrc=Cocoa/Emacs.base
1675 elif test -f $GNUSTEP_CONFIG_FILE; then
1677 ns_appdir=`pwd`/nextstep/Emacs.app
1678 ns_appbindir=${ns_appdir}
1679 ns_appresdir=${ns_appdir}/Resources
1680 ns_appsrc=GNUstep/Emacs.base
1681 dnl FIXME sourcing this several times in subshells seems inefficient.
1682 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1683 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1684 dnl I seemed to need these as well with GNUstep-startup 0.25.
1685 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1686 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1687 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1688 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1689 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1690 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1691 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1692 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1693 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1694 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1695 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1696 dnl If they had chosen to either define it or not, we could have
1697 dnl just used AC_CHECK_DECL here.
1698 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1699 emacs_cv_objc_exceptions,
1700 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1701 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1705 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1706 if test $emacs_cv_objc_exceptions = yes; then
1707 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1708 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1709 [Define if GNUstep uses ObjC exceptions.])
1710 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1714 dnl This is only used while we test the NS headers, it gets reset below.
1715 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1717 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1718 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1719 files are missing or cannot be compiled.])])
1722 if test "${NS_IMPL_COCOA}" = "yes"; then
1723 AC_MSG_CHECKING([for OSX 10.4 or newer])
1724 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1726 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1727 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
1730 error "OSX 10.4 or newer required";
1734 ns_osx_have_104=yes,
1736 AC_MSG_RESULT([$ns_osx_have_104])
1738 if test $ns_osx_have_104 = no; then
1739 AC_MSG_ERROR([`OSX 10.4 or newer is required']);
1741 AC_MSG_CHECKING([for OSX 10.5 or newer])
1742 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1744 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1745 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
1748 error "OSX 10.5 not found";
1752 ns_osx_have_105=yes,
1754 AC_MSG_RESULT([$ns_osx_have_105])
1755 if test $ns_osx_have_105 = yes; then
1756 macfont_file="macfont.o"
1759 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <Foundation/NSObjCRuntime.h>],
1761 ns_have_nsinteger=yes,
1762 ns_have_nsinteger=no)
1763 if test $ns_have_nsinteger = yes; then
1764 AC_DEFINE(NS_HAVE_NSINTEGER, 1, [Define to 1 if `NSInteger' is defined.])
1768 AC_SUBST(LIBS_GNUSTEP)
1770 INSTALL_ARCH_INDEP_EXTRA=install-etc
1771 ns_self_contained=no
1774 if test "${HAVE_NS}" = yes; then
1775 if test "$with_toolkit_scroll_bars" = "no"; then
1776 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1779 window_system=nextstep
1780 # set up packaging dirs
1781 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1782 ns_self_contained=yes
1783 prefix=${ns_appresdir}
1784 exec_prefix=${ns_appbindir}
1785 dnl This one isn't really used, only archlibdir is.
1786 libexecdir="\${ns_appbindir}/libexec"
1787 archlibdir="\${ns_appbindir}/libexec"
1788 etcdocdir="\${ns_appresdir}/etc"
1789 etcdir="\${ns_appresdir}/etc"
1790 dnl FIXME maybe set datarootdir instead.
1791 dnl That would also get applications, icons, man.
1792 infodir="\${ns_appresdir}/info"
1793 mandir="\${ns_appresdir}/man"
1794 lispdir="\${ns_appresdir}/lisp"
1795 INSTALL_ARCH_INDEP_EXTRA=
1798 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o nsfont.o $macfont_file"
1800 CFLAGS="$tmp_CFLAGS"
1801 CPPFLAGS="$tmp_CPPFLAGS"
1802 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1803 AC_SUBST(ns_self_contained)
1805 AC_SUBST(NS_OBJC_OBJ)
1816 if test "${with_w32}" != no; then
1819 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1820 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1821 cannot be found.])])
1824 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1827 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1832 if test "${opsys}" = "mingw32"; then
1833 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1834 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1835 #include <windows.h>
1836 #include <usp10.h>]],
1837 [[PIMAGE_NT_HEADERS pHeader;
1838 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1839 [emacs_cv_w32api=yes
1842 AC_MSG_RESULT($emacs_cv_w32api)
1843 if test "${emacs_cv_w32api}" = "no"; then
1844 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1855 if test "${HAVE_W32}" = "yes"; then
1856 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1857 AC_CHECK_TOOL(WINDRES, [windres],
1858 [AC_MSG_ERROR([No resource compiler found.])])
1859 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1860 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1861 EMACSRES="emacs.res"
1862 case "$canonical" in
1863 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1864 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1866 if test "${opsys}" = "cygwin"; then
1867 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1868 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1869 # Tell the linker that emacs.res is an object (which we compile from
1870 # the rc file), not a linker script.
1871 W32_RES_LINK="-Wl,emacs.res"
1873 UPDATE_MANIFEST=update-game-score.exe.manifest
1874 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1875 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1876 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1877 W32_RES_LINK="\$(EMACSRES)"
1878 CLIENTRES="emacsclient.res"
1879 CLIENTW="emacsclientw\$(EXEEXT)"
1880 FIRSTFILE_OBJ=firstfile.o
1883 LIBS_ECLIENT="-lcomctl32"
1884 LIB_WSOCK32="-lwsock32"
1885 NTLIB="ntlib.$ac_objext"
1886 XARGS_LIMIT="-s 10000"
1892 AC_SUBST(EMACS_MANIFEST)
1893 AC_SUBST(UPDATE_MANIFEST)
1896 AC_SUBST(W32_RES_LINK)
1897 AC_SUBST(FIRSTFILE_OBJ)
1900 AC_SUBST(LIBS_ECLIENT)
1901 AC_SUBST(LIB_WSOCK32)
1903 AC_SUBST(XARGS_LIMIT)
1905 if test "${HAVE_W32}" = "yes"; then
1910 ## $window_system is now set to the window system we will
1913 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1914 # Too many warnings for now.
1916 nw="$nw -Wsuggest-attribute=const"
1917 nw="$nw -Wsuggest-attribute=noreturn"
1918 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1920 gl_WARN_ADD([-Wno-unused-variable])
1921 gl_WARN_ADD([-Wno-unused-but-set-variable])
1922 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1930 case "${window_system}" in
1935 case "${with_x_toolkit}" in
1936 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1937 motif ) USE_X_TOOLKIT=MOTIF ;;
1939 term_header=gtkutil.h
1940 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1941 dnl USE_X_TOOLKIT is set.
1942 USE_X_TOOLKIT=none ;;
1943 gtk2 ) with_gtk2=yes
1944 term_header=gtkutil.h
1945 USE_X_TOOLKIT=none ;;
1946 gtk3 ) with_gtk3=yes
1947 term_header=gtkutil.h
1948 USE_X_TOOLKIT=none ;;
1949 no ) USE_X_TOOLKIT=none ;;
1950 dnl If user did not say whether to use a toolkit, make this decision later:
1951 dnl use the toolkit if we have gtk, or X11R5 or newer.
1952 * ) USE_X_TOOLKIT=maybe ;;
1956 term_header=nsterm.h
1959 term_header=w32term.h
1963 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1964 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1965 if test "$HAVE_XSERVER" = true ||
1966 test -n "$DISPLAY" ||
1967 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1968 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1969 were found. You should install the relevant development files for X
1970 and for the toolkit you want, such as Gtk+ or Motif. Also make
1971 sure you have development files for image handling, i.e.
1972 tiff, gif, jpeg, png and xpm.
1973 If you are sure you want Emacs compiled without X window support, pass
1979 # Does the opsystem file prohibit the use of the GNU malloc?
1980 # Assume not, until told otherwise.
1984 [whether malloc is Doug Lea style],
1985 [emacs_cv_var_doug_lea_malloc],
1986 [emacs_cv_var_doug_lea_malloc=no
1987 dnl Hooks do not work with address sanitization.
1988 if test "$emacs_cv_sanitize_address" != yes; then
1991 [[#include <malloc.h>
1992 static void hook (void) {}]],
1993 [[malloc_set_state (malloc_get_state ());
1994 __after_morecore_hook = hook;
1995 __malloc_initialize_hook = hook;]])],
1996 [emacs_cv_var_doug_lea_malloc=yes])])
1998 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2000 system_malloc=$emacs_cv_sanitize_address
2002 ## darwin ld insists on the use of malloc routines in the System framework.
2003 darwin|mingw32|sol2-10) system_malloc=yes ;;
2007 if test "${system_malloc}" = "yes"; then
2008 AC_DEFINE([SYSTEM_MALLOC], 1,
2009 [Define to 1 to use the system memory allocator, even if it is not
2013 (The GNU allocators don't work with this system configuration.)"
2016 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2017 VMLIMIT_OBJ=vm-limit.o
2019 AC_CHECK_HEADERS([sys/vlimit.h])
2020 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2023 [[extern char data_start[]; char ch;]],
2024 [[return data_start < &ch;]])],
2025 [emacs_cv_data_start=yes],
2026 [emacs_cv_data_start=no])])
2027 if test $emacs_cv_data_start = yes; then
2028 AC_DEFINE([HAVE_DATA_START], 1,
2029 [Define to 1 if data_start is the address of the start
2030 of the main data segment.])
2033 AC_SUBST(GMALLOC_OBJ)
2034 AC_SUBST(VMLIMIT_OBJ)
2036 if test "$doug_lea_malloc" = "yes" ; then
2037 if test "$GNU_MALLOC" = yes ; then
2039 (Using Doug Lea's new malloc from the GNU C Library.)"
2041 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2042 [Define to 1 if the system memory allocator is Doug Lea style,
2043 with malloc hooks and malloc_set_state.])
2045 ## Use mmap directly for allocating larger buffers.
2046 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2047 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2048 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2050 mingw32|gnu*) REL_ALLOC=no ;;
2054 if test x"${REL_ALLOC}" = x; then
2055 REL_ALLOC=${GNU_MALLOC}
2058 use_mmap_for_buffers=no
2060 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2064 if test $use_mmap_for_buffers = yes; then
2065 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2069 LIBS="$LIBS_SYSTEM $LIBS"
2071 dnl FIXME replace main with a function we actually want from this library.
2072 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2074 dnl Check for the POSIX thread library.
2076 if test "$opsys" != "mingw32"; then
2077 AC_CHECK_HEADERS_ONCE(pthread.h)
2078 if test "$ac_cv_header_pthread_h"; then
2079 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2080 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2081 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2082 if test "$GMALLOC_OBJ" = gmalloc.o; then
2083 emacs_pthread_function=pthread_atfork
2085 emacs_pthread_function=pthread_kill
2088 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2089 [AC_DEFINE([HAVE_PTHREAD], [1],
2090 [Define to 1 if you have pthread (-lpthread).])
2091 # Some systems optimize for single-threaded programs by default, and
2092 # need special flags to disable these optimizations. For example, the
2093 # definition of 'errno' in <errno.h>.
2094 if test "$opsys" = aix4-2; then
2095 AC_DEFINE([_THREAD_SAFE], [1],
2096 [Define to 1 if your system requires this in multithreaded code.])
2098 if test "X$LIBS" != "X$OLD_LIBS"; then
2099 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2103 AC_SUBST([LIB_PTHREAD])
2106 dnl Check for need for bigtoc support on IBM AIX
2110 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2112 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2113 *) gdb_cv_bigtoc=-bbigtoc ;;
2116 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2117 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2122 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2123 # is for the tests that follow. We set them back later on.
2125 REAL_CFLAGS="$CFLAGS"
2126 REAL_CPPFLAGS="$CPPFLAGS"
2129 if test "${HAVE_X11}" = "yes"; then
2130 DEFS="$C_SWITCH_X_SITE $DEFS"
2131 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2133 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2134 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2136 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2137 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2138 # but it's more convenient here to set LD_RUN_PATH since this
2139 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2140 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2141 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2145 if test "${opsys}" = "gnu-linux"; then
2146 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2147 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2148 [[XOpenDisplay ("foo");]])],
2149 [xgnu_linux_first_failure=no],
2150 [xgnu_linux_first_failure=yes])
2151 if test "${xgnu_linux_first_failure}" = "yes"; then
2152 OLD_CPPFLAGS="$CPPFLAGS"
2154 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2155 LIBS="$LIBS -b i486-linuxaout"
2156 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2157 [[XOpenDisplay ("foo");]])],
2158 [xgnu_linux_second_failure=no],
2159 [xgnu_linux_second_failure=yes])
2160 if test "${xgnu_linux_second_failure}" = "yes"; then
2161 # If we get the same failure with -b, there is no use adding -b.
2162 # So leave it out. This plays safe.
2165 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2166 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2169 CPPFLAGS=$OLD_CPPFLAGS
2176 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2177 # header files included from there.
2178 AC_MSG_CHECKING(for Xkb)
2179 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2180 #include <X11/XKBlib.h>]],
2181 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2182 emacs_xkb=yes, emacs_xkb=no)
2183 AC_MSG_RESULT($emacs_xkb)
2184 if test $emacs_xkb = yes; then
2185 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2188 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2189 XScreenNumberOfScreen)
2192 if test "${window_system}" = "x11"; then
2193 AC_MSG_CHECKING(X11 version 6)
2194 AC_CACHE_VAL(emacs_cv_x11_version_6,
2195 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2196 [[#if XlibSpecificationRelease < 6
2199 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2200 if test $emacs_cv_x11_version_6 = yes; then
2201 AC_MSG_RESULT(6 or newer)
2202 AC_DEFINE(HAVE_X11R6, 1,
2203 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2204 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2205 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2209 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2210 [Define if you have usable X11R6-style XIM support.])
2214 AC_MSG_RESULT(before 6)
2219 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2221 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2222 if test "${with_rsvg}" != "no"; then
2223 RSVG_REQUIRED=2.11.0
2224 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2226 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2227 AC_SUBST(RSVG_CFLAGS)
2230 if test $HAVE_RSVG = yes; then
2231 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2232 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2233 # Windows loads librsvg dynamically
2234 if test "${opsys}" = "mingw32"; then
2242 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2243 if test "${with_imagemagick}" != "no"; then
2244 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2245 ## 6.8.2 makes Emacs crash; see Bug#13867.
2246 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2247 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2248 AC_SUBST(IMAGEMAGICK_CFLAGS)
2249 AC_SUBST(IMAGEMAGICK_LIBS)
2251 if test $HAVE_IMAGEMAGICK = yes; then
2252 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2255 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2256 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2257 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2267 gtk_term_header=$term_header
2270 if test "${opsys}" != "mingw32"; then
2271 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2274 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2276 dnl Checks for libraries.
2277 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2278 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2279 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2280 AC_MSG_ERROR($GTK_PKG_ERRORS)
2282 if test "$pkg_check_gtk" = "yes"; then
2283 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2284 GTK_OBJ=emacsgtkfixed.o
2285 gtk_term_header=gtkutil.h
2286 USE_GTK_TOOLKIT="GTK3"
2287 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2288 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2289 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2290 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2291 [Define to 1 to disable Glib deprecation warnings.])
2295 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2299 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2302 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2304 dnl Checks for libraries.
2305 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2306 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2307 if test "$pkg_check_gtk" = "no" &&
2308 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2310 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2312 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2319 if test x"$pkg_check_gtk" = xyes; then
2322 CFLAGS="$CFLAGS $GTK_CFLAGS"
2323 LIBS="$GTK_LIBS $LIBS"
2324 dnl Try to compile a simple GTK program.
2325 AC_MSG_CHECKING([whether GTK compiles])
2329 [[/* Check the Gtk and Glib APIs. */
2330 #include <gtk/gtk.h>
2331 #include <glib-object.h>
2333 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2337 GtkSettings *gs = 0;
2338 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2339 strict C prohibits this. Use gtk_main_iteration to test that the
2340 libraries are there. */
2341 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2342 0, 0, 0, G_CALLBACK (callback), 0))
2343 gtk_main_iteration ();
2346 AC_MSG_RESULT([$GTK_COMPILES])
2347 if test "${GTK_COMPILES}" != "yes"; then
2349 if test "$USE_X_TOOLKIT" != "maybe"; then
2350 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2353 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2355 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2356 GTK_OBJ="gtkutil.o $GTK_OBJ"
2357 term_header=$gtk_term_header
2359 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2362 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2363 closing open displays. This is no problem if you just use
2364 one display, but if you use more than one and close one of them
2374 if test "${HAVE_GTK}" = "yes"; then
2376 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2377 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2378 if test "$with_toolkit_scroll_bars" != no; then
2379 with_toolkit_scroll_bars=yes
2382 dnl Check if we have the old file selection dialog declared and
2383 dnl in the link library. In 2.x it may be in the library,
2384 dnl but not declared if deprecated featured has been selected out.
2385 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2386 HAVE_GTK_FILE_SELECTION=no
2387 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2388 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2389 #include <gtk/gtk.h>])
2390 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2391 AC_CHECK_FUNCS(gtk_file_selection_new)
2394 dnl Same as above for gtk_handle_box.
2395 HAVE_GTK_HANDLE_BOX=no
2396 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2397 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2398 #include <gtk/gtk.h>])
2399 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2400 AC_CHECK_FUNCS(gtk_handle_box_new)
2403 dnl Same as above for gtk_tearoff_menu_item.
2404 HAVE_GTK_TEAROFF_MENU_ITEM=no
2405 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2406 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2407 #include <gtk/gtk.h>])
2408 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2409 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2412 dnl Check for functions introduced in 2.14 and later.
2413 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2414 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2415 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2416 gtk_orientable_set_orientation \
2417 gtk_window_set_has_resize_grip)
2419 term_header=gtkutil.h
2425 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2426 dnl other platforms.
2429 if test "${with_dbus}" = "yes"; then
2430 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2431 if test "$HAVE_DBUS" = yes; then
2432 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2433 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2434 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2437 LIBS="$LIBS $DBUS_LIBS"
2438 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2439 dbus_type_is_valid \
2440 dbus_validate_bus_name \
2441 dbus_validate_path \
2442 dbus_validate_interface \
2443 dbus_validate_member)
2448 AC_SUBST(DBUS_CFLAGS)
2452 dnl GSettings has been tested under GNU/Linux only.
2454 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2455 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2456 if test "$HAVE_GSETTINGS" = "yes"; then
2458 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2460 LIBS="$LIBS $GSETTINGS_LIBS"
2461 AC_MSG_CHECKING([whether GSettings is in gio])
2464 [[/* Check that gsettings really is present. */
2465 #include <glib-object.h>
2466 #include <gio/gio.h>
2469 GSettings *settings;
2470 GVariant *val = g_settings_get_value (settings, "");
2472 [], HAVE_GSETTINGS=no)
2473 AC_MSG_RESULT([$HAVE_GSETTINGS])
2475 if test "$HAVE_GSETTINGS" = "yes"; then
2476 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2477 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2478 SETTINGS_LIBS="$GSETTINGS_LIBS"
2485 dnl GConf has been tested under GNU/Linux only.
2486 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2488 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2489 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2490 if test "$HAVE_GCONF" = yes; then
2491 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2492 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2493 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2494 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2498 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2499 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2500 if test "$HAVE_GOBJECT" = "yes"; then
2501 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2502 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2504 SAVE_CFLAGS="$CFLAGS"
2506 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2507 LIBS="$SETTINGS_LIBS $LIBS"
2508 CFLAGS="$SAVE_CFLAGS"
2511 AC_SUBST(SETTINGS_CFLAGS)
2512 AC_SUBST(SETTINGS_LIBS)
2515 dnl SELinux is available for GNU/Linux only.
2518 if test "${with_selinux}" = "yes"; then
2519 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2520 if test "$HAVE_LIBSELINUX" = yes; then
2521 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2522 LIBSELINUX_LIBS=-lselinux
2525 AC_SUBST(LIBSELINUX_LIBS)
2529 if test "${with_gnutls}" = "yes" ; then
2530 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2531 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2532 if test "${HAVE_GNUTLS3}" = "yes"; then
2533 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2536 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2537 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2539 if test "${HAVE_GNUTLS}" = "yes"; then
2540 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2543 # Windows loads GnuTLS dynamically
2544 if test "${opsys}" = "mingw32"; then
2549 AC_SUBST(LIBGNUTLS_LIBS)
2550 AC_SUBST(LIBGNUTLS_CFLAGS)
2555 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2556 dnl a particular library. This doesn't make much sense?
2557 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2558 with_file_notification=no
2561 dnl MS Windows native file monitor is available for mingw32 only.
2562 case $with_file_notification,$opsys in
2563 w32,* | yes,mingw32)
2564 AC_CHECK_HEADER(windows.h)
2565 if test "$ac_cv_header_windows_h" = yes ; then
2566 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2567 NOTIFY_OBJ=w32notify.o
2568 NOTIFY_SUMMARY="yes (w32)"
2572 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2573 dnl has been added in glib 2.24. It has been tested under
2574 dnl GNU/Linux only. We take precedence over inotify, but this makes
2575 dnl only sense when glib has been compiled with inotify support. How
2577 case $with_file_notification,$NOTIFY_OBJ in
2579 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2580 if test "$HAVE_GFILENOTIFY" = "yes"; then
2581 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2582 NOTIFY_OBJ=gfilenotify.o
2583 NOTIFY_SUMMARY="yes -lgio (gfile)"
2587 dnl inotify is only available on GNU/Linux.
2588 case $with_file_notification,$NOTIFY_OBJ in
2590 AC_CHECK_HEADER(sys/inotify.h)
2591 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2592 AC_CHECK_FUNC(inotify_init1)
2593 if test "$ac_cv_func_inotify_init1" = yes; then
2594 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2595 NOTIFY_OBJ=inotify.o
2596 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2601 case $with_file_notification,$NOTIFY_OBJ in
2602 yes,* | no,* | *,?*) ;;
2603 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2606 if test -n "$NOTIFY_OBJ"; then
2607 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2609 AC_SUBST(NOTIFY_OBJ)
2610 AC_SUBST(GFILENOTIFY_CFLAGS)
2611 AC_SUBST(GFILENOTIFY_LIBS)
2613 dnl Do not put whitespace before the #include statements below.
2614 dnl Older compilers (eg sunos4 cc) choke on it.
2617 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2618 if test "$with_xaw3d" != no; then
2619 AC_CACHE_VAL(emacs_cv_xaw3d,
2620 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2621 #include <X11/Intrinsic.h>
2622 #include <X11/Xaw3d/Simple.h>]],
2624 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2625 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2626 emacs_cv_xaw3d=no)])
2630 if test $emacs_cv_xaw3d = yes; then
2631 AC_MSG_CHECKING(for xaw3d)
2632 AC_MSG_RESULT([yes; using Lucid toolkit])
2636 AC_DEFINE(HAVE_XAW3D, 1,
2637 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2639 AC_MSG_CHECKING(for xaw3d)
2641 AC_MSG_CHECKING(for libXaw)
2642 AC_CACHE_VAL(emacs_cv_xaw,
2643 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2644 #include <X11/Intrinsic.h>
2645 #include <X11/Xaw/Simple.h>]],
2649 if test $emacs_cv_xaw = yes; then
2650 AC_MSG_RESULT([yes; using Lucid toolkit])
2653 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2654 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2656 AC_MSG_ERROR([No X toolkit could be found.
2657 If you are sure you want Emacs compiled without an X toolkit, pass
2659 to configure. Otherwise, install the development libraries for the toolkit
2660 that you want to use (e.g. Gtk+) and re-run configure.])
2665 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2669 if test "${USE_X_TOOLKIT}" != "none"; then
2670 AC_MSG_CHECKING(X11 toolkit version)
2671 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2672 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2673 [[#if XtSpecificationRelease < 6
2676 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2677 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2678 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2679 AC_MSG_RESULT(6 or newer)
2680 AC_DEFINE(HAVE_X11XTR6, 1,
2681 [Define to 1 if you have the X11R6 or newer version of Xt.])
2682 LIBXTR6="-lSM -lICE"
2684 ## Use libw.a along with X11R6 Xt.
2685 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2688 AC_MSG_RESULT(before 6)
2691 dnl If using toolkit, check whether libXmu.a exists.
2692 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2694 if test x$HAVE_X11XTR6 = xyes; then
2695 OTHERLIBS='-lXt -lSM -lICE'
2699 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2700 if test "X$LIBS" != "X$OLDLIBS"; then
2701 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2704 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2710 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2711 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2712 if test -d /usr/include/openmotif; then
2713 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2714 emacs_cv_openmotif=yes
2715 case "$canonical" in
2716 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2717 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2720 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2723 emacs_cv_openmotif=no
2725 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2726 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2727 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2730 Motif version prior to 2.1.
2732 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2733 if test $emacs_cv_motif_version_2_1 = yes; then
2734 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2735 if test x$emacs_cv_openmotif = xyes; then
2736 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2739 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2740 # We put this in CFLAGS temporarily to precede other -I options
2741 # that might be in CFLAGS temporarily.
2742 # We put this in CPPFLAGS where it precedes the other -I options.
2743 OLD_CPPFLAGS=$CPPFLAGS
2745 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2746 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2747 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2749 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2750 if test $emacs_cv_lesstif = yes; then
2751 # Make sure this -I option remains in CPPFLAGS after it is set
2752 # back to REAL_CPPFLAGS.
2753 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2754 # have those other -I options anyway. Ultimately, having this
2755 # directory ultimately in CPPFLAGS will be enough.
2756 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2757 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2760 CPPFLAGS=$OLD_CPPFLAGS
2763 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2764 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2767 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2768 dnl using Motif or Xaw3d is available, and unless
2769 dnl --with-toolkit-scroll-bars=no was specified.
2771 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2772 [Define to 1 if we should use toolkit scroll bars.])dnl
2773 USE_TOOLKIT_SCROLL_BARS=no
2774 if test "${with_toolkit_scroll_bars}" != "no"; then
2775 if test "${USE_X_TOOLKIT}" != "none"; then
2776 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2777 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2779 USE_TOOLKIT_SCROLL_BARS=yes
2780 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2781 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2782 USE_TOOLKIT_SCROLL_BARS=yes
2784 elif test "${HAVE_GTK}" = "yes"; then
2785 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2786 USE_TOOLKIT_SCROLL_BARS=yes
2787 elif test "${HAVE_NS}" = "yes"; then
2788 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2789 USE_TOOLKIT_SCROLL_BARS=yes
2790 elif test "${HAVE_W32}" = "yes"; then
2791 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2792 USE_TOOLKIT_SCROLL_BARS=yes
2796 dnl See if XIM is available.
2797 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2798 #include <X11/Xlib.h>
2799 #include <X11/Xresource.h>]],
2800 [[XIMProc callback;]])],
2802 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2805 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2807 if test "${with_xim}" != "no"; then
2808 AC_DEFINE(USE_XIM, 1,
2809 [Define to 1 if we should use XIM, if it is available.])
2813 if test "${HAVE_XIM}" != "no"; then
2815 if test "$GCC" = yes; then
2816 CFLAGS="$CFLAGS --pedantic-errors"
2818 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2819 #include <X11/Xlib.h>
2820 #include <X11/Xresource.h>]],
2826 XPointer *client_data;
2828 /* If we're not using GCC, it's probably not XFree86, and this is
2829 probably right, but we can't use something like --pedantic-errors. */
2830 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2831 char*, XIMProc, XPointer*);
2833 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2835 [emacs_cv_arg6_star=yes])
2836 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2837 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2838 either XPointer or XPointer*.])dnl
2839 if test "$emacs_cv_arg6_star" = yes; then
2840 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2842 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2847 ### Start of font-backend (under any platform) section.
2848 # (nothing here yet -- this is a placeholder)
2849 ### End of font-backend (under any platform) section.
2851 ### Start of font-backend (under X11) section.
2852 if test "${HAVE_X11}" = "yes"; then
2853 ## Use -lXft if available, unless `--with-xft=no'.
2855 if test "x${with_x}" = "xno"; then
2859 if test "$with_xft" != no; then
2860 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2861 with_xft=$HAVE_FONTCONFIG
2864 if test "x${with_xft}" != "xno"; then
2866 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2867 ## Because xftfont.c uses XRenderQueryExtension, we also
2868 ## need to link to -lXrender.
2870 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2871 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2872 OLD_CPPFLAGS="$CPPFLAGS"
2873 OLD_CFLAGS="$CFLAGS"
2875 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2876 CFLAGS="$CFLAGS $XFT_CFLAGS"
2877 XFT_LIBS="-lXrender $XFT_LIBS"
2878 LIBS="$XFT_LIBS $LIBS"
2879 AC_CHECK_HEADER(X11/Xft/Xft.h,
2880 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2881 [[#include <X11/X.h>]])
2883 if test "${HAVE_XFT}" = "yes"; then
2884 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2886 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2887 fi # "${HAVE_XFT}" = "yes"
2888 CPPFLAGS=$OLD_CPPFLAGS
2891 fi # "$HAVE_XFT" != no
2892 fi # "x${with_xft}" != "xno"
2894 ## We used to allow building with FreeType and without Xft.
2895 ## However, the ftx font backend driver is not in good shape.
2896 if test "$HAVE_XFT" != "yes"; then
2897 dnl For the "Does Emacs use" message at the end.
2901 dnl Strict linkers fail with
2902 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2903 dnl if -lfreetype is not specified.
2904 dnl The following is needed to set FREETYPE_LIBS.
2905 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2907 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2911 if test "${HAVE_FREETYPE}" = "yes"; then
2912 AC_DEFINE(HAVE_FREETYPE, 1,
2913 [Define to 1 if using the freetype and fontconfig libraries.])
2914 if test "${with_libotf}" != "no"; then
2915 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2916 if test "$HAVE_LIBOTF" = "yes"; then
2917 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2918 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2919 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2920 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2921 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2922 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2923 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2927 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2928 dnl Does the new font backend require it, or can it work without it?
2932 if test "${HAVE_LIBOTF}" = yes; then
2933 if test "${with_m17n_flt}" != "no"; then
2934 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2935 if test "$HAVE_M17N_FLT" = "yes"; then
2936 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2947 ### End of font-backend (under X11) section.
2949 AC_SUBST(FREETYPE_CFLAGS)
2950 AC_SUBST(FREETYPE_LIBS)
2951 AC_SUBST(FONTCONFIG_CFLAGS)
2952 AC_SUBST(FONTCONFIG_LIBS)
2953 AC_SUBST(LIBOTF_CFLAGS)
2954 AC_SUBST(LIBOTF_LIBS)
2955 AC_SUBST(M17N_FLT_CFLAGS)
2956 AC_SUBST(M17N_FLT_LIBS)
2958 ### Use -lXpm if available, unless `--with-xpm=no'.
2959 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
2962 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
2963 if test "${with_xpm}" != "no"; then
2964 SAVE_CPPFLAGS="$CPPFLAGS"
2965 SAVE_LDFLAGS="$LDFLAGS"
2966 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
2967 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
2968 AC_CHECK_HEADER(X11/xpm.h,
2969 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
2970 if test "${HAVE_XPM}" = "yes"; then
2971 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
2972 AC_EGREP_CPP(no_return_alloc_pixels,
2973 [#include "X11/xpm.h"
2974 #ifndef XpmReturnAllocPixels
2975 no_return_alloc_pixels
2977 ], HAVE_XPM=no, HAVE_XPM=yes)
2979 if test "${HAVE_XPM}" = "yes"; then
2980 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
2984 CPPFLAGS="$SAVE_CPPFLAGS"
2985 LDFLAGS="$SAVE_LDFLAGS"
2990 if test "${HAVE_XPM}" = "yes"; then
2991 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
2996 if test "${HAVE_X11}" = "yes"; then
2997 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
2998 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3000 if test "${with_xpm}" != "no"; then
3001 AC_CHECK_HEADER(X11/xpm.h,
3002 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3003 if test "${HAVE_XPM}" = "yes"; then
3004 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3005 AC_EGREP_CPP(no_return_alloc_pixels,
3006 [#include "X11/xpm.h"
3007 #ifndef XpmReturnAllocPixels
3008 no_return_alloc_pixels
3010 ], HAVE_XPM=no, HAVE_XPM=yes)
3012 if test "${HAVE_XPM}" = "yes"; then
3020 if test "${HAVE_XPM}" = "yes"; then
3021 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3023 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3024 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3029 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3030 ### slightly different requirements wrt image libraries (it doesn't
3031 ### use -lXpm because it loads the xpm shared library dynamically at
3033 if test "${opsys}" = "mingw32"; then
3034 if test "${with_xpm}" != "no"; then
3035 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3039 if test "${HAVE_XPM}" = "yes"; then
3040 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3046 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3047 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3050 if test "${opsys}" = "mingw32"; then
3051 if test "${with_jpeg}" != "no"; then
3052 dnl Checking for jpeglib.h can lose because of a redefinition of
3054 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3056 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3057 if test "${HAVE_JPEG}" = "yes"; then
3058 AC_DEFINE(HAVE_JPEG)
3059 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3060 [#include <jpeglib.h>
3061 version=JPEG_LIB_VERSION
3063 [AC_DEFINE(HAVE_JPEG)],
3064 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3067 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3068 if test "${with_jpeg}" != "no"; then
3069 dnl Checking for jpeglib.h can lose because of a redefinition of
3071 AC_CHECK_HEADER(jerror.h,
3072 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3075 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3076 if test "${HAVE_JPEG}" = "yes"; then
3077 AC_DEFINE(HAVE_JPEG)
3078 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3079 [#include <jpeglib.h>
3080 version=JPEG_LIB_VERSION
3082 [AC_DEFINE(HAVE_JPEG)],
3083 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3086 if test "${HAVE_JPEG}" = "yes"; then
3094 if test "${with_zlib}" != "no"; then
3096 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3098 case $ac_cv_search_inflateEnd in
3099 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3102 if test "${HAVE_ZLIB}" = "yes"; then
3103 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3104 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3105 if test "${opsys}" = "mingw32"; then
3111 ### Use -lpng if available, unless `--with-png=no'.
3115 if test "${NS_IMPL_COCOA}" = yes; then
3117 elif test "${with_png}" != no; then
3118 # mingw32 loads the library dynamically.
3119 if test "$opsys" = mingw32; then
3120 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3121 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3122 AC_MSG_CHECKING([for png])
3123 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3124 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3125 # libpng-config does not work; configure by hand.
3126 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3127 # in /usr/include/libpng.
3128 if test -r /usr/include/libpng/png.h &&
3129 test ! -r /usr/include/png.h; then
3130 png_cflags=-I/usr/include/libpng
3138 CFLAGS="$CFLAGS $png_cflags"
3139 LIBS="$png_libs -lz -lm $LIBS"
3141 [AC_LANG_PROGRAM([[#include <png.h>]],
3142 [[return !png_get_channels (0, 0);]])],
3144 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3146 # $LIBPNG requires explicit -lz in some cases.
3147 # We don't know what those cases are, exactly, so play it safe and
3148 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3149 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3150 LIBPNG="$LIBPNG -lz"
3154 AC_MSG_RESULT([$HAVE_PNG])
3157 if test $HAVE_PNG = yes; then
3158 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3161 CFLAGS="$CFLAGS $PNG_CFLAGS"
3162 AC_CHECK_DECL([png_longjmp],
3164 [AC_DEFINE([PNG_DEPSTRUCT], [],
3165 [Define to empty to suppress deprecation warnings when building
3166 with --enable-gcc-warnings and with libpng versions before 1.5,
3167 which lack png_longjmp.])],
3173 AC_SUBST(PNG_CFLAGS)
3175 ### Use -ltiff if available, unless `--with-tiff=no'.
3176 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3179 if test "${opsys}" = "mingw32"; then
3180 if test "${with_tiff}" != "no"; then
3181 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3183 if test "${HAVE_TIFF}" = "yes"; then
3184 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3186 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3187 if test "${with_tiff}" != "no"; then
3188 AC_CHECK_HEADER(tiffio.h,
3190 # At least one tiff package requires the jpeg library.
3191 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3192 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3195 if test "${HAVE_TIFF}" = "yes"; then
3196 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3197 dnl FIXME -lz -lm, as per libpng?
3203 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3204 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3207 if test "${opsys}" = "mingw32"; then
3208 if test "${with_gif}" != "no"; then
3209 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3211 if test "${HAVE_GIF}" = "yes"; then
3212 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3214 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3215 || test "${HAVE_W32}" = "yes"; then
3216 AC_CHECK_HEADER(gif_lib.h,
3217 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3218 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3219 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3220 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3222 if test "$HAVE_GIF" = yes; then
3224 elif test "$HAVE_GIF" = maybe; then
3225 # If gif_lib.h but no libgif, try libungif.
3226 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3227 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3230 if test "${HAVE_GIF}" = "yes"; then
3231 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3236 dnl Check for required libraries.
3237 if test "${HAVE_X11}" = "yes"; then
3240 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3241 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3242 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3243 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3244 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3245 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3246 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3247 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3248 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3249 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3251 if test "X${MISSING}" != X; then
3252 AC_MSG_ERROR([The following required libraries were not found:
3254 Maybe some development libraries/packages are missing?
3255 If you don't want to link with them give
3257 as options to configure])
3261 ### Use -lgpm if available, unless `--with-gpm=no'.
3264 if test "${with_gpm}" != "no"; then
3265 AC_CHECK_HEADER(gpm.h,
3266 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3268 if test "${HAVE_GPM}" = "yes"; then
3269 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3275 dnl Check for malloc/malloc.h on darwin
3276 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3279 ### Use NeXTstep API to implement GUI.
3280 if test "${HAVE_NS}" = "yes"; then
3281 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3282 if test "${NS_IMPL_COCOA}" = "yes"; then
3283 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3285 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3286 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3287 # See also .m.o rule in Makefile.in */
3288 # FIXME: are all these flags really needed? Document here why. */
3289 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3290 ## Extra CFLAGS applied to src/*.m files.
3291 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3296 ### Use session management (-lSM -lICE) if available
3299 if test "${HAVE_X11}" = "yes"; then
3300 AC_CHECK_HEADER(X11/SM/SMlib.h,
3301 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3303 if test "${HAVE_X_SM}" = "yes"; then
3304 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3310 ### Use XRandr (-lXrandr) if available
3312 if test "${HAVE_X11}" = "yes"; then
3313 XRANDR_REQUIRED=1.2.2
3314 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3315 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3316 if test $HAVE_XRANDR = no; then
3317 # Test old way in case pkg-config doesn't have it (older machines).
3318 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3319 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)])
3320 if test $HAVE_XRANDR = yes; then
3321 XRANDR_LIBS=-lXrandr
3324 if test $HAVE_XRANDR = yes; then
3325 SAVE_CFLAGS="$CFLAGS"
3327 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3328 LIBS="$XRANDR_LIBS $LIBS"
3329 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3330 CFLAGS="$SAVE_CFLAGS"
3333 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3336 AC_SUBST(XRANDR_CFLAGS)
3337 AC_SUBST(XRANDR_LIBS)
3339 ### Use Xinerama (-lXinerama) if available
3341 if test "${HAVE_X11}" = "yes"; then
3342 XINERAMA_REQUIRED=1.0.2
3343 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3344 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3345 if test $HAVE_XINERAMA = no; then
3346 # Test old way in case pkg-config doesn't have it (older machines).
3347 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3348 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3349 if test $HAVE_XINERAMA = yes; then
3350 XINERAMA_LIBS=-lXinerama
3353 if test $HAVE_XINERAMA = yes; then
3354 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3357 AC_SUBST(XINERAMA_CFLAGS)
3358 AC_SUBST(XINERAMA_LIBS)
3360 ### Use Xfixes (-lXfixes) if available
3362 if test "${HAVE_X11}" = "yes"; then
3363 XFIXES_REQUIRED=4.0.0
3364 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3365 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3366 if test $HAVE_XFIXES = no; then
3367 # Test old way in case pkg-config doesn't have it (older machines).
3368 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3369 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3370 if test $HAVE_XFIXES = yes; then
3371 XFIXES_LIBS=-lXfixes
3374 if test $HAVE_XFIXES = yes; then
3375 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3378 AC_SUBST(XFIXES_CFLAGS)
3379 AC_SUBST(XFIXES_LIBS)
3381 ### Use libxml (-lxml2) if available
3382 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3384 if test "${with_xml2}" != "no"; then
3385 ### I'm not sure what the version number should be, so I just guessed.
3386 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3387 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3388 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3389 SAVE_CPPFLAGS="$CPPFLAGS"
3390 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3391 AC_CHECK_HEADER(libxml/HTMLparser.h,
3392 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3393 [#include <libxml/HTMLparser.h>])])
3394 CPPFLAGS="$SAVE_CPPFLAGS"
3395 if test "${HAVE_LIBXML2}" = "yes"; then
3396 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3397 LIBXML2_LIBS="-lxml2"
3400 if test "${HAVE_LIBXML2}" = "yes"; then
3401 if test "${opsys}" != "mingw32"; then
3402 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3407 if test "${HAVE_LIBXML2}" = "yes"; then
3408 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3415 AC_SUBST(LIBXML2_LIBS)
3416 AC_SUBST(LIBXML2_CFLAGS)
3418 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3419 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3420 if test "${opsys}" = "mingw32"; then
3421 emacs_cv_netdb_declares_h_errno=yes
3423 AC_CACHE_CHECK(whether netdb declares h_errno,
3424 emacs_cv_netdb_declares_h_errno,
3425 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3426 [[return h_errno;]])],
3427 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3428 if test $emacs_cv_netdb_declares_h_errno = yes; then
3429 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3432 # Check for mail-locking functions in a "mail" library. Probably this should
3433 # have the same check as for liblockfile below.
3434 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3435 if test $have_mail = yes; then
3437 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3440 LIBS="$LIBS_MAIL $LIBS"
3441 AC_CHECK_FUNCS(touchlock)
3446 dnl Debian, at least:
3447 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3448 if test $have_lockfile = yes; then
3449 LIBS_MAIL=-llockfile
3450 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3452 # If we have the shared liblockfile, assume we must use it for mail
3453 # locking (e.g. Debian). If we couldn't link against liblockfile
3454 # (no liblockfile.a installed), ensure that we don't need to.
3455 dnl This works for files generally, not just executables.
3456 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3457 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3458 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3459 if test $ac_cv_prog_liblockfile = yes; then
3460 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3461 This probably means that movemail could lose mail.
3462 There may be a `development' package to install containing liblockfile.])
3465 AC_CHECK_HEADERS_ONCE(maillock.h)
3468 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3469 ## interlock access to the mail spool. The alternative is a lock file named
3470 ## /usr/spool/mail/$USER.lock.
3473 aix4-2) mail_lock="lockf" ;;
3475 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3477 ## On GNU/Linux systems, both methods are used by various mail programs.
3478 ## I assume most people are using newer mailers that have heard of flock.
3479 ## Change this if you need to.
3480 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3481 ## configure gets the right answers, and that means *NOT* using flock.
3482 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3483 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3484 ## Debian maintainer hasn't provided a clean fix for Emacs.
3485 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3486 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3487 ## correct logic. -- fx
3488 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3489 ## liblockfile is a Free Software replacement for libmail, used on
3490 ## Debian systems and elsewhere. -rfr.
3493 if test $have_mail = yes || test $have_lockfile = yes; then
3494 test $ac_cv_header_maillock_h = yes && mail_lock=no
3499 mail_lock="none-needed" ;;
3503 case "$mail_lock" in
3504 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3506 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3510 *) BLESSMAIL_TARGET="need-blessmail" ;;
3512 AC_SUBST(BLESSMAIL_TARGET)
3515 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3516 AC_CHECK_FUNCS(accept4 gethostname \
3517 getrusage get_current_dir_name \
3518 lrand48 random rint \
3519 select getpagesize setlocale \
3520 getrlimit setrlimit shutdown getaddrinfo \
3521 pthread_sigmask strsignal setitimer \
3522 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3524 getpwent endpwent getgrent endgrent \
3525 cfmakeraw cfsetspeed copysign __executable_start log2)
3528 dnl No need to check for aligned_alloc and posix_memalign if using
3529 dnl gmalloc.o, as it supplies them. Don't use these functions on
3530 dnl Darwin as they are incompatible with unexmacosx.c.
3531 if test -z "$GMALLOC_OBJ" && test "$opsys" != darwin; then
3532 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3535 dnl Cannot use AC_CHECK_FUNCS
3536 AC_CACHE_CHECK([for __builtin_unwind_init],
3537 emacs_cv_func___builtin_unwind_init,
3538 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3539 emacs_cv_func___builtin_unwind_init=yes,
3540 emacs_cv_func___builtin_unwind_init=no)])
3541 if test $emacs_cv_func___builtin_unwind_init = yes; then
3542 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3543 [Define to 1 if you have the `__builtin_unwind_init' function.])
3546 AC_CHECK_HEADERS_ONCE(sys/un.h)
3551 AC_CHECK_FUNCS(grantpt)
3553 # PTY-related GNU extensions.
3554 AC_CHECK_FUNCS(getpt posix_openpt)
3556 # Check this now, so that we will NOT find the above functions in ncurses.
3557 # That is because we have not set up to link ncurses in lib-src.
3558 # It's better to believe a function is not available
3559 # than to expect to find it in ncurses.
3560 # Also we need tputs and friends to be able to build at all.
3561 AC_MSG_CHECKING([for library containing tputs])
3562 # Run a test program that contains a call to tputs, a call that is
3563 # never executed. This tests whether a pre-'main' dynamic linker
3564 # works with the library. It's too much trouble to actually call
3565 # tputs in the test program, due to portability hassles. When
3566 # cross-compiling, assume the test program will run if it links.
3567 AC_DEFUN([tputs_link_source], [
3569 [[extern void tputs (const char *, int, int (*)(int));
3570 int main (int argc, char **argv)
3573 tputs (argv[0], 0, 0);
3577 if test "${opsys}" = "mingw32"; then
3580 # Maybe curses should be tried earlier?
3581 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3582 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3584 if test -z "$tputs_library"; then
3588 LIBS_TERMCAP=-l$tputs_library
3590 LIBS="$LIBS_TERMCAP $LIBS"
3592 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3593 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3595 if test "X$msg" != Xno; then
3600 AC_MSG_RESULT([$msg])
3601 if test "X$msg" = Xno; then
3602 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3603 The following libraries were tried (in order):
3604 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3605 Please try installing whichever of these libraries is most appropriate
3606 for your system, together with its header files.
3607 For example, a libncurses-dev(el) or similar package.])
3610 ## Use termcap instead of terminfo?
3611 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3613 ## FIXME? In the cases below where we unconditionally set
3614 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3615 ## if that was found above to have tputs.
3616 ## Should we use the gnu* logic everywhere?
3618 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3619 ## The ncurses library has been moved out of the System framework in
3620 ## Mac OS X 10.2. So if configure detects it, set the command-line
3621 ## option to use it.
3622 darwin) LIBS_TERMCAP="-lncurses" ;;
3624 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3627 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3628 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3629 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3630 [[#if __FreeBSD_version < 400000
3633 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3635 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3637 if test $emacs_cv_freebsd_terminfo = yes; then
3638 LIBS_TERMCAP="-lncurses"
3641 LIBS_TERMCAP="-ltermcap"
3651 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3653 LIBS_TERMCAP="-ltermcap"
3657 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3659 ## hpux: Make sure we get select from libc rather than from libcurses
3660 ## because libcurses on HPUX 10.10 has a broken version of select.
3661 ## We used to use -lc -lcurses, but this may be cleaner.
3662 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3663 # set that way, now it uses the default). Isn't this a contradiction?
3664 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3668 TERMCAP_OBJ=tparam.o
3669 if test $TERMINFO = yes; then
3670 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3671 TERMCAP_OBJ=terminfo.o
3673 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3674 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3676 AC_SUBST(LIBS_TERMCAP)
3677 AC_SUBST(TERMCAP_OBJ)
3680 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3681 # On Darwin, res_init appears not to be useful: see bug#562 and
3682 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3685 if test $opsys != darwin; then
3687 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3688 #include <arpa/nameser.h>
3689 #include <resolv.h>]],
3690 [[return res_init();]])],
3691 have_res_init=yes, have_res_init=no)
3692 if test "$have_res_init" = no; then
3694 LIBS="$LIBS -lresolv"
3695 AC_MSG_CHECKING(for res_init with -lresolv)
3696 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3697 #include <arpa/nameser.h>
3698 #include <resolv.h>]],
3699 [[return res_init();]])],
3700 have_res_init=yes, have_res_init=no)
3701 AC_MSG_RESULT($have_res_init)
3702 if test "$have_res_init" = yes ; then
3708 if test "$have_res_init" = yes; then
3709 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3713 # Do we need the Hesiod library to provide the support routines?
3714 dnl FIXME? Should we be skipping this on Darwin too?
3716 if test "$with_hesiod" != no ; then
3717 # Don't set $LIBS here -- see comments above. FIXME which comments?
3718 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3719 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3720 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3721 if test "$resolv" = yes ; then
3726 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3727 hesiod=yes, :, $RESOLVLIB)])
3729 if test x"$hesiod" = xyes; then
3735 # Do we need libresolv (due to res_init or Hesiod)?
3736 if test "$resolv" = yes && test $opsys != darwin; then
3743 # These tell us which Kerberos-related libraries to use.
3750 if test "${with_kerberos}" != no; then
3752 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3753 if test $have_com_err = yes; then
3754 COM_ERRLIB=-lcom_err
3755 LIBS="$COM_ERRLIB $LIBS"
3757 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3758 if test $have_crypto = yes; then
3760 LIBS="$CRYPTOLIB $LIBS"
3762 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3763 if test $have_k5crypto = yes; then
3764 CRYPTOLIB=-lk5crypto
3765 LIBS="$CRYPTOLIB $LIBS"
3767 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3768 if test $have_krb5=yes; then
3770 LIBS="$KRB5LIB $LIBS"
3772 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3773 if test "${with_kerberos5}" = no; then
3774 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3775 if test $have_des425 = yes; then
3777 LIBS="$DESLIB $LIBS"
3779 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3780 if test $have_des = yes; then
3782 LIBS="$DESLIB $LIBS"
3785 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3786 if test $have_krb4 = yes; then
3788 LIBS="$KRB4LIB $LIBS"
3790 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3791 if test $have_krb = yes; then
3793 LIBS="$KRB4LIB $LIBS"
3798 if test "${with_kerberos5}" != no; then
3799 AC_CHECK_HEADERS(krb5.h,
3800 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3801 [#include <krb5.h>])])
3803 AC_CHECK_HEADERS(krb.h,,
3804 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3805 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3807 AC_CHECK_HEADERS(com_err.h)
3811 AC_SUBST(COM_ERRLIB)
3817 AC_CHECK_HEADERS(valgrind/valgrind.h)
3819 AC_CHECK_FUNCS_ONCE(tzset)
3820 AC_MSG_CHECKING(whether localtime caches TZ)
3821 AC_CACHE_VAL(emacs_cv_localtime_cache,
3822 [if test x$ac_cv_func_tzset = xyes; then
3823 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
3824 char TZ_GMT0[] = "TZ=GMT0";
3825 char TZ_PST8[] = "TZ=PST8";
3828 time_t now = time ((time_t *) 0);
3829 int hour_GMT0, hour_unset;
3830 if (putenv (TZ_GMT0) != 0)
3832 hour_GMT0 = localtime (&now)->tm_hour;
3834 hour_unset = localtime (&now)->tm_hour;
3835 if (putenv (TZ_PST8) != 0)
3837 if (localtime (&now)->tm_hour == hour_GMT0)
3840 if (localtime (&now)->tm_hour != hour_unset)
3843 }]])], emacs_cv_localtime_cache=no, emacs_cv_localtime_cache=yes,
3844 [# If we have tzset, assume the worst when cross-compiling.
3845 emacs_cv_localtime_cache=yes])
3847 # If we lack tzset, report that localtime does not cache TZ,
3848 # since we can't invalidate the cache if we don't have tzset.
3849 emacs_cv_localtime_cache=no
3851 AC_MSG_RESULT($emacs_cv_localtime_cache)
3852 if test $emacs_cv_localtime_cache = yes; then
3853 AC_DEFINE(LOCALTIME_CACHE, 1,
3854 [Define to 1 if localtime caches TZ.])
3858 AC_CHECK_FUNC(socket, , ok_so_far=no)
3859 if test $ok_so_far = yes; then
3860 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3862 if test $ok_so_far = yes; then
3863 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3865 if test $ok_so_far = yes; then
3866 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3867 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3868 [Define to 1 if you have inet sockets.])
3873 AC_CHECK_FUNCS(snprintf)
3875 dnl Check for glib. This differs from other library checks in that
3876 dnl Emacs need not link to glib unless some other library is already
3877 dnl linking to glib. Although glib provides no facilities that Emacs
3878 dnl needs for its own purposes, when glib is present Emacs needs to
3879 dnl use primitives like g_main_context_query to avoid clashing with
3880 dnl glib at a low level.
3882 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3886 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3887 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3888 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3889 LIBS="$LIBS $GFILENOTIFY_LIBS"
3890 AC_MSG_CHECKING([whether GLib is linked in])
3891 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3894 [[g_print ("Hello world");]])],
3897 AC_MSG_RESULT([$links_glib])
3898 if test "${links_glib}" = "yes"; then
3899 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3900 if test "$HAVE_NS" = no;then
3908 dnl Adapted from Haible's version.
3909 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3910 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3911 [[char* cs = nl_langinfo(CODESET);]])],
3912 emacs_cv_langinfo_codeset=yes,
3913 emacs_cv_langinfo_codeset=no)
3915 if test $emacs_cv_langinfo_codeset = yes; then
3916 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3917 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3922 AC_CACHE_CHECK([for C restricted array declarations], emacs_cv_c_restrict_arr,
3923 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[void fred (int x[__restrict]);]], [[]])],
3924 emacs_cv_c_restrict_arr=yes, emacs_cv_c_restrict_arr=no)])
3925 if test "$emacs_cv_c_restrict_arr" = yes; then
3926 AC_DEFINE(__restrict_arr, __restrict,
3927 [Define to compiler's equivalent of C99 restrict keyword in array
3928 declarations. Define as empty for no equivalent.])
3931 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3932 dnl how the tty code is related to POSIX and/or other versions of termios.
3933 dnl The following looks like a useful start.
3935 dnl AC_SYS_POSIX_TERMIOS
3936 dnl if test $ac_cv_sys_posix_termios = yes; then
3937 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3938 dnl and macros for terminal control.])
3939 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3942 dnl Turned on June 1996 supposing nobody will mind it.
3943 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3944 if test "${opsys}" != "mingw32"; then
3945 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3946 in the full name stands for the login id.])
3949 dnl Everybody supports this, except MS.
3950 dnl Seems like the kind of thing we should be testing for, though.
3951 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3952 if test "${opsys}" != "mingw32"; then
3953 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3956 dnl Everybody supports this, except MS-DOS.
3957 dnl Seems like the kind of thing we should be testing for, though.
3958 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3959 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3960 4.2-compatible sockets.])
3962 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3964 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3965 a null file, or a data sink.])
3966 if test "${opsys}" = "mingw32"; then
3967 AC_DEFINE(NULL_DEVICE, ["NUL:"])
3969 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
3972 if test "${opsys}" = "mingw32"; then
3977 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
3978 dnl This is for MinGW, and is used in test/automated/Makefile.in.
3979 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
3980 dnl decides that a command-line argument to be passed to a MinGW program
3981 dnl is a PATH-style list of directories. But that heuristics plays it
3982 dnl safe, and only does the replacement when it is _absolutely_ sure it
3983 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
3984 dnl which breaks in-tree builds. So we do this manually instead.
3985 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
3986 dnl be computed as ':' in MSYS Bash.
3989 dnl Everybody supports this, except MS-DOS.
3990 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
3992 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
3995 AC_DEFINE(DIRECTORY_SEP, ['/'],
3996 [Character that separates directories in a file name.])
3998 if test "${opsys}" = "mingw32"; then
3999 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4000 [Returns true if character is a device separator.])
4002 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4003 [Returns true if character is a directory separator.])
4005 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4006 [Returns true if character is any form of separator.])
4008 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4009 [Returns true if character is a device separator.])
4011 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4012 [Returns true if character is a directory separator.])
4014 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4015 [Returns true if character is any form of separator.])
4018 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4022 dnl Unfortunately without libXmu we cannot support EditRes.
4023 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4024 AC_DEFINE(NO_EDITRES, 1)
4029 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4030 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4031 AC_DEFINE(NO_EDITRES, 1)
4037 irix6-5 | sol2* | unixware )
4038 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4039 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4040 dnl need the constant to dimension an array. So wire in the appropriate
4042 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4046 emacs_broken_SIGIO=no
4049 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4050 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4051 hpux* | irix6-5 | openbsd | sol2* | unixware )
4052 emacs_broken_SIGIO=yes
4056 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4057 dnl the way this system works, libc functions that return malloced
4058 dnl memory use the libc malloc implementation. Calling xfree or
4059 dnl xrealloc on the results of such functions results in a crash.
4061 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4062 dnl but that does not currently work on this system.
4064 dnl It is possible to completely override the malloc implementation on
4065 dnl AIX, but that involves putting the malloc functions in a shared
4066 dnl library and setting the MALLOCTYPE environment variable to point to
4067 dnl that shared library.
4069 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4070 dnl to avoid a crash just use the Emacs implementation for that function.
4072 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4073 dnl of this file, so that we do not check for get_current_dir_name
4074 dnl on AIX. But that might be fragile if something else ends
4075 dnl up testing for get_current_dir_name as a dependency.
4076 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4077 get_current_dir_name should not be used.])
4081 dnl Circumvent a bug in FreeBSD. In the following sequence of
4082 dnl writes/reads on a PTY, read(2) returns bogus data:
4084 dnl write(2) 1022 bytes
4085 dnl write(2) 954 bytes, get EAGAIN
4086 dnl read(2) 1024 bytes in process_read_output
4087 dnl read(2) 11 bytes in process_read_output
4089 dnl That is, read(2) returns more bytes than have ever been written
4090 dnl successfully. The 1033 bytes read are the 1022 bytes written
4091 dnl successfully after processing (for example with CRs added if the
4092 dnl terminal is set up that way which it is here). The same bytes will
4093 dnl be seen again in a later read(2), without the CRs.
4094 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4095 work around an issue when reading from a PTY.])
4101 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4102 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4107 darwin | dragonfly | freebsd | netbsd | openbsd )
4108 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4109 close a pty to make it a controlling terminal (it is already a
4110 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4114 dnl FIXME Surely we can test for this rather than hard-code it.
4116 netbsd | openbsd) sound_device="/dev/audio" ;;
4117 *) sound_device="/dev/dsp" ;;
4121 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4122 [Name of the default sound device.])
4125 dnl Emacs can read input using SIGIO and buffering characters itself,
4126 dnl or using CBREAK mode and making C-g cause SIGINT.
4127 dnl The choice is controlled by the variable interrupt_input.
4129 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4131 dnl Emacs uses the presence of the USABLE_SIGIO macro
4132 dnl to indicate whether or not signal-driven I/O is possible. It uses
4133 dnl INTERRUPT_INPUT to decide whether to use it by default.
4135 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4136 dnl CBREAK mode has two disadvantages
4137 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4138 dnl I hear that in system V this problem does not exist.
4139 dnl 2) Control-G causes output to be discarded.
4140 dnl I do not know whether this can be fixed in system V.
4142 dnl Another method of doing input is planned but not implemented.
4143 dnl It would have Emacs fork off a separate process
4144 dnl to read the input and send it to the true Emacs process
4147 darwin | gnu-linux | gnu-kfreebsd )
4148 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4153 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4154 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4155 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4156 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4157 dnl taking float or double parameters.
4159 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4160 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4161 file defines `NeedWidePrototypes' as `NO'.])
4166 dnl Used in process.c, this must be a loop, even if it only runs once.
4167 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4168 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4169 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4170 dnl trying suffixes 0-16.
4171 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4172 first PTY, if PTYs are supported.])
4173 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4174 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4175 end of a PTY, if non-standard.])
4176 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4177 end of a PTY, if non-standard.])
4181 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4182 dnl You allocate a pty by opening /dev/ptc to get the master side.
4183 dnl To get the name of the slave side, you just ttyname() the master side.
4184 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4185 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4189 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4190 dnl multi-line AC_DEFINEs are hard. :(
4191 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)])
4192 AC_DEFINE(PTY_NAME_SPRINTF, [])
4193 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4196 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4198 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4199 dnl Not used, because PTY_ITERATION is defined.
4200 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4201 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4202 dnl But we don't have to block SIGCHLD because it is blocked in the
4203 dnl implementation of grantpt.
4204 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4205 AC_DEFINE(PTY_NAME_SPRINTF, [])
4206 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4210 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4213 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4215 if test "x$ac_cv_func_grantpt" = xyes; then
4216 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4217 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4218 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4219 dnl to prevent sigchld_handler from intercepting the child's death.
4220 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); }])
4221 dnl if HAVE_POSIX_OPENPT
4222 if test "x$ac_cv_func_posix_openpt" = xyes; then
4223 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4224 AC_DEFINE(PTY_NAME_SPRINTF, [])
4226 elif test "x$ac_cv_func_getpt" = xyes; then
4227 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4228 AC_DEFINE(PTY_NAME_SPRINTF, [])
4230 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4233 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4238 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4239 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4240 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4244 dnl It looks like this cannot be right, because it is not a loop.
4245 dnl However, process.c actually does this:
4251 dnl which presumably makes it OK, since irix == sgi (?).
4252 dnl FIXME it seems like this special treatment is unnecessary?
4253 dnl Why can't irix use a single-trip loop like eg cygwin?
4254 AC_DEFINE(PTY_ITERATION, [])
4255 dnl Not used, because PTY_ITERATION is defined.
4256 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4257 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); }])
4258 dnl No need to get the pty name at all.
4259 AC_DEFINE(PTY_NAME_SPRINTF, [])
4260 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4261 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4265 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4266 dnl from intercepting that death. If any child but grantpt's should die
4267 dnl within, it should be caught after sigrelse(2).
4268 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); }])
4272 dnl Comments are as per sol2*.
4273 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); }])
4280 dnl This change means that we don't loop through allocate_pty too
4281 dnl many times in the (rare) event of a failure.
4282 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4283 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4284 dnl Push various streams modules onto a PTY channel. Used in process.c.
4285 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.])
4290 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4291 "typing" a signal character on the pty.])
4294 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4295 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4296 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4297 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4300 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4301 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4302 gnu-linux | gnu-kfreebsd )
4304 AC_MSG_CHECKING([for signals via characters])
4305 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4306 #include <linux/version.h>
4307 #if LINUX_VERSION_CODE < 0x20400
4308 # error "Linux version too old"
4310 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4312 AC_MSG_RESULT([$emacs_signals_via_chars])
4313 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4318 AH_TEMPLATE(TAB3, [Undocumented.])
4321 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4323 gnu | dragonfly | freebsd | netbsd | openbsd )
4324 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4325 AC_DEFINE(TAB3, OXTABS)
4328 gnu-linux | gnu-kfreebsd )
4329 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4333 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4334 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4335 [Mark a secondary stack, like the register stack on the ia64.]), [])
4339 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4340 run_time_remap; for HPUX.])
4345 dnl This won't be used automatically yet. We also need to know, at least,
4346 dnl that the stack is continuous.
4347 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4348 registers relevant for conservative garbage collection in the jmp_buf.])
4352 dnl Not all the architectures are tested, but there are Debian packages
4353 dnl for SCM and/or Guile on them, so the technique must work. See also
4354 dnl comments in alloc.c concerning setjmp and gcc.
4355 dnl Fixme: it's probably safe to just use the GCC conditional below.
4356 gnu-linux | gnu-kfreebsd )
4357 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4358 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4359 || defined __alpha__ || defined __mips__ || defined __s390__ \
4360 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4361 || defined __ia64__ || defined __sh__
4364 # error "setjmp not known to work on this arch"
4366 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4371 if test x$GCC = xyes; then
4372 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4373 AC_DEFINE(GC_SETJMP_WORKS, 1)
4376 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4377 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4378 AC_DEFINE(GC_SETJMP_WORKS, 1)
4383 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4384 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4387 [[#include <setjmp.h>
4389 # define _longjmp longjmp
4394 _longjmp (j, 1);]])],
4395 [emacs_cv_func__setjmp=yes],
4396 [emacs_cv_func__setjmp=no])])
4397 if test $emacs_cv_func__setjmp = yes; then
4398 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4400 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4403 [[#include <setjmp.h>
4406 if (! sigsetjmp (j, 1))
4407 siglongjmp (j, 1);]])],
4408 [emacs_cv_func_sigsetjmp=yes],
4409 [emacs_cv_func_sigsetjmp=no])])
4410 if test $emacs_cv_func_sigsetjmp = yes; then
4411 AC_DEFINE([HAVE_SIGSETJMP], 1,
4412 [Define to 1 if sigsetjmp and siglongjmp work.
4413 The value of this symbol is irrelevant if HAVE__SETJMP is defined.])
4419 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4420 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4421 dnl and this is all we need.
4422 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4429 dnl Used in xfaces.c.
4430 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4431 some systems, where it requires time.h.])
4436 dnl Define symbols to identify the version of Unix this is.
4437 dnl Define all the symbols that apply correctly.
4438 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4439 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4440 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4441 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4446 dnl This symbol should be defined on AIX Version 3 ???????
4447 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4449 # error "_AIX not defined"
4451 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4455 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4459 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4460 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4461 dnl distinguish OS X from pure Darwin.
4462 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4465 gnu-linux | gnu-kfreebsd )
4467 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4472 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4477 AC_DEFINE(USG5_4, [])
4478 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4482 AC_DEFINE(DOS_NT, [])
4483 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4484 if test "x$ac_enable_checking" != "x" ; then
4485 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4491 AC_DEFINE(USG5_4, [])
4492 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4497 AC_DEFINE(USG5_4, [])
4501 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4504 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4505 emacs_cv_usable_FIONREAD=no
4509 emacs_cv_usable_FIONREAD=yes
4514 [AC_LANG_PROGRAM([[#include <sys/types.h>
4515 #include <sys/ioctl.h>
4517 # include <sys/filio.h>
4520 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4521 [emacs_cv_usable_FIONREAD=yes],
4522 [emacs_cv_usable_FIONREAD=no])
4525 if test $emacs_cv_usable_FIONREAD = yes; then
4526 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4528 if test $emacs_broken_SIGIO = no; then
4529 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4531 [AC_LANG_PROGRAM([[#include <fcntl.h>
4534 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4535 [emacs_cv_usable_SIGIO=yes],
4536 [emacs_cv_usable_SIGIO=no])],
4537 [emacs_cv_usable_SIGIO=yes],
4538 [emacs_cv_usable_SIGIO=no])
4539 if test $emacs_cv_usable_SIGIO = yes; then
4540 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4547 dnl Emacs supplies its own malloc, but glib calls posix_memalign,
4548 dnl and on Cygwin prior to version 1.7.24 that becomes the
4549 dnl Cygwin-supplied posix_memalign. As malloc is not the Cygwin
4550 dnl malloc, the Cygwin posix_memalign always returns ENOSYS. A
4551 dnl workaround is to set G_SLICE=always-malloc. This is no longer
4552 dnl needed starting with cygwin-1.7.24, and it is no longer
4553 dnl effective starting with glib-2.36. */
4555 AC_DEFINE(G_SLICE_ALWAYS_MALLOC, 1, [Define to set the
4556 G_SLICE environment variable to "always-malloc" at startup.])
4560 dnl It works to open the pty's tty in the parent (Emacs), then
4561 dnl close and reopen it in the child.
4562 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4563 works to open a pty's tty in the parent process, then close and
4564 reopen it in the child.])
4568 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4569 use VSUSP instead of VSWTCH.])
4573 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4578 # Set up the CFLAGS for real compilation, so we can substitute it.
4579 CFLAGS="$REAL_CFLAGS"
4580 CPPFLAGS="$REAL_CPPFLAGS"
4583 ## Hack to detect a buggy GCC version.
4584 if test "x$GCC" = xyes \
4585 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4586 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4587 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4588 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4591 version=$PACKAGE_VERSION
4593 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4594 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4595 [Short copyright string for this version of Emacs.])
4598 ### Specify what sort of things we'll be editing into Makefile and config.h.
4599 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4601 AC_SUBST(configuration)
4606 AC_SUBST(exec_prefix)
4609 AC_SUBST(sharedstatedir)
4610 AC_SUBST(libexecdir)
4614 AC_SUBST(standardlisppath)
4615 AC_SUBST(locallisppath)
4617 AC_SUBST(x_default_search_path)
4619 AC_SUBST(archlibdir)
4624 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4625 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4626 ## end of LIBX_BASE, but nothing ever set it.
4627 AC_SUBST(LD_SWITCH_X_SITE)
4628 AC_SUBST(C_SWITCH_X_SITE)
4629 AC_SUBST(GNUSTEP_CFLAGS)
4631 ## Used in lwlib/Makefile.in.
4632 AC_SUBST(X_TOOLKIT_TYPE)
4634 AC_SUBST(ns_appbindir)
4635 AC_SUBST(ns_appresdir)
4637 AC_SUBST(GNU_OBJC_CFLAGS)
4638 AC_SUBST(OTHER_FILES)
4640 if test -n "${term_header}"; then
4641 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4642 [Define to the header for the built-in window system.])
4645 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4646 [Define to the canonical Emacs configuration name.])
4647 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4648 [Define to the options passed to configure.])
4649 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4650 define this to include extra configuration information.])
4654 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4661 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4662 AC_DEFINE(HAVE_X_WINDOWS, 1,
4663 [Define to 1 if you want to use the X window system.])
4665 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4667 if test "$HAVE_XFT" = "yes"; then
4668 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4669 elif test "$HAVE_FREETYPE" = "yes"; then
4670 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4680 if test "${USE_X_TOOLKIT}" != "none" ; then
4682 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4683 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4684 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4685 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4686 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4690 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4691 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4695 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4696 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4697 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4701 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4702 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4705 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4708 AC_SUBST(WIDGET_OBJ)
4711 case "$USE_X_TOOLKIT" in
4712 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4713 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4714 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4716 AC_SUBST(TOOLKIT_LIBW)
4718 if test "${opsys}" != "mingw32"; then
4719 if test "$USE_X_TOOLKIT" = "none"; then
4720 LIBXT_OTHER="\$(LIBXSM)"
4722 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4725 AC_SUBST(LIBXT_OTHER)
4727 if test "${HAVE_X11}" = "yes" ; then
4728 AC_DEFINE(HAVE_X11, 1,
4729 [Define to 1 if you want to use version 11 of X windows.])
4730 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4734 AC_SUBST(LIBX_OTHER)
4736 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4738 elif test "$USE_X_TOOLKIT" = none; then
4739 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4741 LIBXMENU='$(lwlibdir)/liblw.a'
4745 if test "${GNU_MALLOC}" = "yes" ; then
4746 AC_DEFINE(GNU_MALLOC, 1,
4747 [Define to 1 if you want to use the GNU memory allocator.])
4751 if test "${REL_ALLOC}" = "yes" ; then
4752 AC_DEFINE(REL_ALLOC, 1,
4753 [Define REL_ALLOC if you want to use the relocating allocator for
4756 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4758 AC_SUBST(RALLOC_OBJ)
4760 if test "$opsys" = "cygwin"; then
4761 CYGWIN_OBJ="sheap.o cygw32.o"
4762 ## Cygwin differs because of its unexec().
4764 POST_ALLOC_OBJ=lastfile.o
4765 elif test "$opsys" = "mingw32"; then
4768 POST_ALLOC_OBJ=lastfile.o
4771 PRE_ALLOC_OBJ=lastfile.o
4774 AC_SUBST(CYGWIN_OBJ)
4775 AC_SUBST(PRE_ALLOC_OBJ)
4776 AC_SUBST(POST_ALLOC_OBJ)
4778 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4779 dnl verbatim defined above. The tricky name is apropos, as this hack
4780 dnl makes Fortify go sour!
4781 AH_VERBATIM([FORTIFY_SOUR],
4782 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4783 The workaround disables some useful run-time checking, so it
4784 should be conditional to the platforms with the performance bug.
4785 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4786 #if defined __APPLE__ && defined __GNUC__
4787 # ifndef _DONT_USE_CTYPE_INLINE_
4788 # define _DONT_USE_CTYPE_INLINE_
4790 # ifndef _FORTIFY_SOURCE
4791 # define _FORTIFY_SOURCE 0
4796 # If user asks to omit features, disable optional features that gnulib
4797 # might otherwise enable.
4798 if test "$with_features" = no && test "$enable_acl" != yes; then
4802 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4803 # it temporarily reverts them to their pre-pkg-config values,
4804 # because gnulib needs to work with both src (which uses the
4805 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4806 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4807 # and it therefore needs to run in an environment where LIBS does not
4808 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4809 # for some package unrelated to lib-src.
4812 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4813 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4814 gl_ASSERT_NO_GNULIB_POSIXCHECK
4815 gl_ASSERT_NO_GNULIB_TESTS
4820 if test "${opsys}" = "mingw32"; then
4821 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4822 # Remove unneeded switches from the value of CC that goes to Makefiles
4823 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4827 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4830 ## The -headerpad option tells ld (see man page) to leave room at the
4831 ## end of the header for adding load commands. Needed for dumping.
4832 ## 0x690 is the total size of 30 segment load commands (at 56
4833 ## each); under Cocoa 31 commands are required.
4834 if test "$HAVE_NS" = "yes"; then
4835 libs_nsgui="-framework AppKit"
4836 if test "$NS_IMPL_COCOA" = "yes"; then
4837 libs_nsgui="$libs_nsgui -framework IOKit"
4844 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4846 ## This is here because src/Makefile.in did some extra fiddling around
4847 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4848 ## LD_SWITCH_SYSTEM_TEMACS instead,
4849 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4850 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4853 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4854 ## find X at run-time.
4855 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4856 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4857 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4858 ## had different values in configure (in ac_link) and src/Makefile.in.
4859 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4860 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4863 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4864 case "$canonical" in
4865 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4866 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4870 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4872 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4875 if test x$ac_enable_profiling != x ; then
4877 *freebsd | gnu-linux) ;;
4878 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4882 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4884 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4886 ## Common for all window systems
4887 if test "$window_system" != "none"; then
4888 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4889 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4890 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4893 AC_SUBST(WINDOW_SYSTEM_OBJ)
4895 AH_TOP([/* GNU Emacs site configuration template file.
4897 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4898 Free Software Foundation, Inc.
4900 This file is part of GNU Emacs.
4902 GNU Emacs is free software: you can redistribute it and/or modify
4903 it under the terms of the GNU General Public License as published by
4904 the Free Software Foundation, either version 3 of the License, or
4905 (at your option) any later version.
4907 GNU Emacs is distributed in the hope that it will be useful,
4908 but WITHOUT ANY WARRANTY; without even the implied warranty of
4909 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4910 GNU General Public License for more details.
4912 You should have received a copy of the GNU General Public License
4913 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4916 /* No code in Emacs #includes config.h twice, but some bits of code
4917 intended to work with other packages as well (like gmalloc.c)
4918 think they can include it as many times as they like. */
4919 #ifndef EMACS_CONFIG_H
4920 #define EMACS_CONFIG_H
4923 AH_BOTTOM([#include <conf_post.h>
4925 #endif /* EMACS_CONFIG_H */
4934 #### Report on what we decided to do.
4935 #### Report GTK as a toolkit, even if it doesn't use Xt.
4936 #### It makes printing result more understandable as using GTK sets
4937 #### toolkit_scroll_bars to yes by default.
4938 if test "${HAVE_GTK}" = "yes"; then
4939 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4942 if test $USE_ACL -ne 0; then
4943 ACL_SUMMARY="yes $LIB_ACL"
4949 Configured for \`${canonical}'.
4951 Where should the build process find the source code? ${srcdir}
4952 What compiler should emacs be built with? ${CC} ${CFLAGS}
4953 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
4954 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
4955 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
4956 What window system should Emacs use? ${window_system}
4957 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
4959 if test -n "${x_includes}"; then
4960 echo " Where do we find X Windows header files? ${x_includes}"
4962 echo " Where do we find X Windows header files? Standard dirs"
4964 if test -n "${x_libraries}"; then
4965 echo " Where do we find X Windows libraries? ${x_libraries}"
4967 echo " Where do we find X Windows libraries? Standard dirs"
4971 emacs_config_features=
4972 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
4973 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
4977 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
4978 *) eval val=\${HAVE_$opt} ;;
4980 test x"$val" = xno && continue
4981 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
4984 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
4985 [Summary of some of the main features enabled by configure.])
4987 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
4988 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
4989 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
4990 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
4991 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
4992 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
4993 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
4994 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
4996 echo " Does Emacs support sound? ${HAVE_SOUND}"
4998 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
4999 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5000 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5001 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5002 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5003 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5004 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5005 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5006 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5008 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5009 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5010 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5011 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5012 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5014 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5017 if test -n "${EMACSDATA}"; then
5018 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5020 if test -n "${EMACSDOC}"; then
5021 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5026 if test "$HAVE_NS" = "yes"; then
5028 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5029 The installed application will go to nextstep/Emacs.app and can be
5030 run or moved from there."
5031 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5032 echo "The application will be fully self-contained."
5034 echo "The lisp resources for the application will be installed under ${prefix}.
5035 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5036 to run if these resources are not installed."
5041 if test "${opsys}" = "cygwin"; then
5043 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5049 # Remove any trailing slashes in these variables.
5050 [test "${prefix}" != NONE &&
5051 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5052 test "${exec_prefix}" != NONE &&
5053 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5055 if test "$HAVE_NS" = "yes"; then
5056 if test "$NS_IMPL_GNUSTEP" = yes; then
5057 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5058 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5059 ns_check_file=Resources/Info-gnustep.plist
5061 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5062 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5063 ns_check_file=Contents/Info.plist
5065 AC_SUBST(ns_check_file)
5068 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5069 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5070 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5071 dnl (else you get "no `Makefile.am' found for any configure output").
5072 dnl This will work, but you get a config.status that is not quite right
5073 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5074 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5075 dnl it seems better to just live with the duplication.
5076 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5078 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5079 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5080 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5081 leim/Makefile nextstep/Makefile nt/Makefile])
5083 dnl test/ is not present in release tarfiles.
5084 opt_makefile=test/automated/Makefile
5086 if test -f "$srcdir/$opt_makefile.in"; then
5087 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5088 dnl Again, it's best not to use a variable. Though you can add
5089 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5090 AC_CONFIG_FILES([test/automated/Makefile])
5094 dnl The admin/ directory used to be excluded from tarfiles.
5095 if test -d $srcdir/admin; then
5096 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5097 AC_CONFIG_FILES([admin/unidata/Makefile])
5098 AC_CONFIG_FILES([admin/grammars/Makefile])
5102 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5104 AC_SUBST(SUBDIR_MAKEFILES_IN)
5106 dnl You might wonder (I did) why epaths.h is generated by running make,
5107 dnl rather than just letting configure generate it from epaths.in.
5108 dnl One reason is that the various paths are not fully expanded (see above);
5109 dnl eg gamedir=${prefix}/var/games/emacs.
5110 dnl Secondly, the GNU Coding standards require that one should be able
5111 dnl to run `make prefix=/some/where/else' and override the values set
5112 dnl by configure. This also explains the `move-if-change' test and
5113 dnl the use of force in the `epaths-force' rule in Makefile.in.
5114 AC_CONFIG_COMMANDS([src/epaths.h], [
5115 if test "${opsys}" = "mingw32"; then
5116 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5118 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5120 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5122 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5123 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5125 AC_CONFIG_COMMANDS([src/.gdbinit], [
5126 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5127 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5133 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])